US-12624792-B2 - Tripod with one button activation

Abstract

One-button operation type support leg and support foot frame includes a first bracket, a second bracket and a third bracket. The second bracket may slide relative to the first bracket, and the third bracket may slide relative to the second bracket in the length extension direction. An active locking mechanism locks or unlocks the first bracket and the second bracket being disposed between the first bracket and the second bracket, and a drive locking mechanism locks or unlocks the second bracket and the third bracket being disposed between the second bracket and the third bracket. An interlocking mechanism may be disposed between the active locking mechanism and the drive locking mechanism. The active locking mechanism drives the driven locking mechanism to move through the interlocking mechanism, so the drive locking mechanism and the active locking mechanism are in a locked state or in an unlocked state at the same time.

Inventors

• Jie Li
• Zhiwu HE

Assignees

• GUANGDONG SIRUI OPTICAL CO., LTD.

Dates

Publication Date

20260512

Application Date

20250428

Priority Date

20240428

Claims (19)

1. 1 . A one-button operation support leg comprising: a first bracket section; a second bracket section; and a third bracket section; wherein, in a length extension direction, the second bracket section is slidable relative to the first bracket section; and the third bracket section is slidable relative to the second bracket section; an active locking mechanism, for locking or unlocking the first bracket section and the second bracket section, disposed between the first bracket section and the second bracket section; and a driven locking mechanism, for locking or unlocking the second bracket section and the third bracket section, disposed between the second bracket section and the third bracket section; and an interlocking mechanism connected between the active locking mechanism and the driven locking mechanism; wherein the active locking mechanism is configured to drive the driven locking mechanism to move through the interlocking mechanism and the driven locking mechanism and the active locking mechanism are both in a locked state or an unlocked state wherein: one end of the third tube is telescopically arranged in a corresponding second tube, the other end of the third tube a fixedly connected with a third fixed joint, and an outer periphery of the one end of the third tube extending into the second tube is sleeved with a non-slip sheet, and the non-slip sheet is configured to prevent the third tube from sliding out of the second tube.
2. 2 . The one-button operation support leg according to claim 1 , wherein: the first bracket section comprises at least two first tubes arranged side by side; wherein the second bracket section comprises at least two second tubes arranged side by side; wherein the at least two second tubes comprise a first sliding joint and a second sliding joint fixedly connected therebetween; wherein the third bracket section comprises at least two third tubes arranged side by side; wherein the at least two first tubes are slidably connected to the first sliding joint, and wherein the at least two third tubes are slidably connected to the second sliding joint.
3. 3 . The one-button operation support leg according to claim 2 wherein: a first through hole is disposed at the first sliding joint; wherein the active locking mechanism comprises: a tensioning shaft movably inserted into the first through hole; a clamping block disposed at one side of the first sliding joint and fixedly connected to one end of the tensioning shaft extending out of the first through hole; an operating member, rotatably connected to the side of the first sliding joint about a pin away from the clamping block; wherein a transmission shaft is fixedly connected to the other end of the tensioning shaft extending out of the first through hole and transmissively connected to the operating member; and wherein during a rotation process, the operating member drives the tensioning shaft and the clamping block to move through the transmission shaft and the clamping block and the first sliding joint cooperate to clamp the first tube.
4. 4 . The one-button operation support leg according to claim 3 , wherein: the operating member comprises a pull button, and the pull button includes a pull button arm and a pull button head connected in one piece; wherein the first sliding joint comprises a groove for accommodating the pull button head; wherein the pull button head is rotatably connected to the pin shaft; wherein the pull button head comprises a C-shaped groove, and two ends of the C-shaped groove are at different distances from a rotation axis of the pull button head; and wherein the transmission shaft extends into the C-shaped groove and slide in the C-shaped groove.
5. 5 . The one-button operation support leg according to claim 4 , wherein: the pull button head comprises a concave cavity; wherein the pull button head comprises an upper top wall of the concave cavity and a lower bottom wall of the concave cavity; wherein the upper top wall and the lower bottom wall comprise the C-shaped groove; wherein the transmission shaft is disposed in the concave cavity; and wherein the two ends of the transmission shaft extend into the C-shaped grooves of the upper top wall and the lower bottom wall respectively.
6. 6 . The one-button operation support leg according to claim 5 , wherein: a first positioning groove and a second positioning groove are disposed at the side wall of the pull button head facing the groove; and wherein the first positioning groove and the C-shaped groove are arranged corresponding to a proximal end position close to the rotation axis of the pull button head; wherein the second positioning groove and the C-shaped groove are arranged corresponding to the proximal end position close to the rotation axis of the pull button head; wherein the rotation axis of the buckle head are arranged at a far end position; wherein the first sliding joint comprises a glass bead spring with one end extending from the groove side wall of the groove; wherein, in response to the glass bead spring extending into the first positioning groove, the buckle head is positioned in a locking position; and wherein, in response to the glass bead spring extending into the second positioning groove, the buckle head is positioned in an unlocking position.
7. 7 . The one-button operation support leg according to claim 3 , wherein: a slide groove is further disposed on the side of the first sliding joint facing the clamping block; and wherein in response to the clamping block being in a locked state, a part or all of the clamping block extends into the slide groove; and wherein the slide groove further comprises a first elastic member sleeved on an outer periphery of the tensioning shaft and elastically arranged between the clamping block and the first sliding joint.
8. 8 . The one-button operation support leg according to claim 7 , wherein: the first sliding joint comprises a first guide hole that slides with a part of the circumferential outer wall of the first tube, wherein the first guide hole comprises a hole wall connected with a groove wall of the slide groove, and the clamping block comprises a first clamping arc surface abutting against another part of the circumferential outer wall of the first tube to clamp the first tube in cooperation with the first sliding joint on a side facing the first guide hole.
9. 9 . The one-button operation support leg according to claim 3 , wherein: the tensioning shaft comprises a tensioning screw with an external thread at one end, and the clamping block is configured to be threadedly connected to the tensioning shaft.
10. 10 . The one-button operation support leg according to claim 3 wherein: the second sliding joint comprises a second guide hole sliding with a part of the circumferential outer wall of the third tube, wherein the second sliding joint comprises a mounting cavity inside, and a hole wall of the second guide hole is configured to be connected with a cavity side wall of the mounting cavity; wherein the driven locking mechanism comprises: a pair of clamping blocks slidably arranged in the mounting cavity along a connecting line direction of the at least two third tubes; wherein one side of the clamping block facing the second guide hole comprises a second clamping arc surface abutting against another part of the circumferential outer wall of the third tube body to cooperate with the second sliding joint to clamp the third tube body, and the other side of the clamping block facing away from the second clamping arc surface comprises a first inclined guide surface; wherein the main oblique pressure block is configured to be slidably arranged in the installation cavity along a direction perpendicular to the connecting line direction of a pair of the third tube bodies; wherein the main oblique pressure block comprises a second inclined guide surface on the side surface connected to a pair of the pressing blocks and matched with the inclined surface of the first inclined guide surface; a second elastic member is configured to be elastically arranged between the second sliding joint and the pressing block, and an elastic force of the second elastic member drives the main inclined pressing block to move in the direction of squeezing the pressing block; wherein the interlocking mechanism includes: a transmission rod, one end thereof is fixedly connected to the operating member and is in synchronous rotation with the operating member, and the other end of thereof is configured to extend into the mounting cavity in the second sliding joint; wherein the force transmission cam is disposed in the mounting cavity in the second sliding joint and is fixedly connected to the transmission rod; and wherein the force transmission cam pushes the main oblique pressure block to squeeze the clamping block during the rotation of the transmission rod and the clamping block and the second sliding joint cooperate to clamp the third tube in a first state, and to release the main oblique pressure block in a second state.
11. 11 . The one-button operation support leg according to claim 10 , wherein: a secondary oblique pressure block is disposed in an inner concave cavity of the main oblique pressure block, and a third oblique guide surface matching the oblique surface of the first oblique guide surface is disposed on the side surface of the secondary oblique pressure block connected to the pair of the clamping blocks, and the third oblique guide surface and the second oblique guide surface are arranged coplanarly; wherein the main oblique pressure is threadedly connected with an adjusting screw; wherein the adjusting screw is fixedly connected to the secondary oblique pressure block, and a third elastic member is disposed between the main oblique pressure block and the secondary oblique pressure block, and an elastic force direction of the third elastic member is the same as a movement direction of the main oblique pressure block.
12. 12 . An one-button operation photographic support comprising: a first bracket section; a second bracket section; and a third bracket section; wherein, in an length extension direction, the second bracket section is slidable relative to the first bracket section; and the third bracket section is slidable relative to the second bracket section; an active locking mechanism, for locking or unlocking the first bracket section and the second bracket section, disposed between the first bracket section and the second bracket section; and a driven locking mechanism, for locking or unlocking the second bracket section and the third bracket section, disposed between the second bracket section and the third bracket section; and an interlocking mechanism connected between the active locking mechanism and the driven locking mechanism; wherein the active locking mechanism is configured to drive the driven locking mechanism to move through the interlocking mechanism and the driven locking mechanism and the active locking mechanism are both in a locked state or an unlocked state; wherein: one end of the third tube is telescopically arranged in an corresponding second tube, the other end of the third tube a fixedly connected with a third fixed joint, and an outer periphery of the one end of the third tube extending into the second tube is sleeved with a non-slip sheet, and the non-slip sheet is configured to prevent the third tube from sliding out of the second tube.
13. 13 . The one-button operation photographic support according to claim 12 , wherein: the first bracket section comprises at least two first tubes arranged side by side; wherein the second bracket section comprises at least two second tubes arranged side by side; wherein the at least two second tubes comprise a first sliding joint and a second sliding joint fixedly connected therebetween; wherein the third bracket section comprises at least two third tubes arranged side by side; wherein the at least two first tubes are slidably connected to the first sliding joint; and wherein the at least two third tubes are slidably connected to the second sliding joint.
14. 14 . The one-button operation photographic support according to claim 13 , wherein: a first through hole is disposed at the first sliding joint; wherein the active locking mechanism comprises: a tensioning shaft movably inserted into the first through hole; a clamping block disposed at one side of the first sliding joint and fixedly connected to one end of the tensioning shaft extending out of the first through hole; an operating member, rotatably connected to the side of the first sliding joint about a pin away from the clamping block; wherein a transmission shaft is fixedly connected to the other end of the tensioning shaft extending out of the first through hole and transmissively connected to the operating member; and wherein during a rotation process, the operating member drives the tensioning shaft and the clamping block to move through the transmission shaft and the clamping block and the first sliding joint cooperate to clamp the first tube.
15. 15 . The one-button operation photographic support according to claim 14 , wherein: the tensioning shaft comprises a tensioning screw with an external thread at one end, and the clamping block is configured to be threadedly connected to the tensioning shaft.
16. 16 . The one-button operation photographic support according to claim 14 wherein: the second sliding joint comprises a second guide hole sliding with a part of the circumferential outer wall of the third tube, wherein the second sliding joint comprises a mounting cavity inside, and a hole wall of the second guide hole is configured to be connected with a cavity side wall of the mounting cavity; wherein the driven locking mechanism comprises: a pair of clamping blocks slidably arranged in the mounting cavity along a connecting line direction of the at least two third tubes; wherein one side of the clamping block facing the second guide hole comprises a second clamping arc surface abutting against another part of the circumferential outer wall of the third tube body to cooperate with the second sliding joint to clamp the third tube body, and the other side of the clamping block facing away from the second clamping arc surface comprises a first inclined guide surface; wherein the main oblique pressure block is configured to be slidably arranged in the installation cavity along a direction perpendicular to the connecting line direction of a pair of the third tube bodies; wherein the main oblique pressure block comprises a second inclined guide surface on the side surface connected to a pair of the pressing blocks and matched with the inclined surface of the first inclined guide surface; a second elastic member is configured to be elastically arranged between the second sliding joint and the pressing block, and an elastic force of the second elastic member drives the main inclined pressing block to move in the direction of squeezing the pressing block; wherein the interlocking mechanism includes: a transmission rod, one end thereof is fixedly connected to the operating member and is in synchronous rotation with the operating member, and the other end o thereof is configured to extend into the mounting cavity in the second sliding joint; wherein the force transmission cam is disposed in the mounting cavity in the second sliding joint and is fixedly connected to the transmission rod; and wherein the force transmission cam pushes the main oblique pressure block to squeeze the clamping block during the rotation of the transmission rod and the clamping block and the second sliding joint cooperate to clamp the third tube in a first state, and to release the main oblique pressure block in a second state.
17. 17 . The one-button operation support leg according to claim 16 , wherein: a secondary oblique pressure block is disposed in an inner concave cavity of the main oblique pressure block, and a third oblique guide surface matching the oblique surface of the first oblique guide surface is disposed on the side surface of the secondary oblique pressure block connected to the pair of the clamping blocks, and the third oblique guide surface and the second oblique guide surface are arranged coplanarly; wherein the main oblique pressure is threadedly connected with an adjusting screw; wherein the adjusting screw is fixedly connected to the secondary oblique pressure block, and a third elastic member is disposed between the main oblique pressure block and the secondary oblique pressure block, and an elastic force direction of the third elastic member is the same as a movement direction of the main oblique pressure block.
18. 18 . The one-button operation photographic support according to claim 14 , wherein: the operating member comprises a pull button, and the pull button includes a pull button arm and a pull button head connected in one piece; wherein the first sliding joint comprises a groove for accommodating the pull button head; wherein the pull button head is rotatably connected to the pin shaft; wherein the pull button head comprises a C-shaped groove, and two ends of the C-shaped groove are at different distances from a rotation axis of the pull button head; and wherein the transmission shaft extends into the C-shaped groove and slide in the C-shaped groove.
19. 19 . The one-button operation photographic support according to claim 15 , wherein: the pull button head comprises a concave cavity; wherein the pull button head comprises an upper top wall of the concave cavity and a lower bottom wall of the concave cavity; wherein the upper top wall and the lower bottom wall comprise the C-shaped groove; wherein the transmission shaft is disposed in the concave cavity; and wherein two ends of the transmission shaft extend into the C-shaped grooves of the upper top wall and the lower bottom wall respectively.

Description

TECHNICAL FIELD Embodiments of the invention generally relate to the field of photographic equipment technology. In particular, embodiments of the invention specifically relate a one-button operation support leg and support tripod. BACKGROUND In daily life, it may be often necessary to use supports and other equipment to hold up cameras and other photography devices. These supports comprise multiple legs, each designed with a telescopic structure to adjust the height of the support. Typically, these telescopic legs have three sections, with locking mechanisms between each section. Each set of locking mechanisms has its own independent lock/unlock switch. To fully extend all the legs, all six lock/unlock switches must be activated. This makes the process quite inconvenient. SUMMARY Therefore, the technical problem to be solved by the present invention may be to overcome the defects of complicated height adjustment operation and slow adjustment speed in the existing technology, so as to provide a one-button operation support leg and support foot. In order to solve the above technical problems, the technical solution of the present invention may be as follows: A one-button operation support leg, comprising a first section bracket, a second section bracket, and a third section bracket. In the length extension direction of the support leg, the second section bracket can slide relative to the first section bracket, and the third section bracket can slide relative to the second section bracket. An active locking mechanism may be installed between the first and second section brackets to achieve locking or unlocking, and a passive locking mechanism may be installed between the second and third section brackets to achieve locking or unlocking. Additionally, an interlocking mechanism connects the active locking mechanism and the passive locking mechanism. The active locking mechanism drives the passive locking mechanism through the interlocking mechanism, ensuring that the passive locking mechanism and the active locking mechanism are either both locked or both unlocked simultaneously. Furthermore, the first section of the bracket comprises at least two first tube bodies arranged side by side; the second section of the bracket includes at least two second tube bodies arranged side by side, along with a first sliding joint and a second sliding joint fixed between these two tube bodies; the third section of the bracket includes at least two third tube bodies arranged side by side. At least two of these first tube bodies are slidably connected to the first sliding joint, and at least two of these third tube bodies are slidably connected to the second sliding joint. Further, the first sliding joint may be provided with a first through hole; the active locking mechanism includes: The tightening shaft may be movably mounted in the first through hole;A clamping block, located on one side of the first sliding joint and fixedly connected to the end of the tensioning shaft extending out of the first through hole;The operating member may be rotatably connected to the side of the first sliding joint away from the clamping block around a pin shaft,The drive shaft may be fixedly connected to the other end of the tensioning shaft extending from the first through hole and may be transmissive connected to the operating member; In the process of rotation, the operating member drives the tightening shaft and the clamping block to move through the transmission shaft, so that the clamping block and the first sliding joint cooperate with the first tube body. Furthermore, the operating component may be specifically a latch, which comprises an integral latch arm and a latch head. The first sliding joint has a recess designed to accommodate the latch head, which may be rotatably connected to the pin shaft. The latch head features a C-shaped groove, with the two ends of the groove being at different distances from the rotation axis of the latch head. The drive shaft extends into the C-shaped groove and can slide within it. Furthermore, the buckle head features an internal recess. The buckle head comprises an upper top wall and a lower bottom wall, with both walls featuring C-shaped grooves. The drive shaft may be situated within the recess, with its two ends extending into the C-shaped grooves of the upper top wall and the lower bottom wall, respectively. Furthermore, the buckle head has a first positioning groove and a second positioning groove on the side wall facing the recess. The first positioning groove may be positioned closer to the C-shaped groove near the buckle heads rotation axis, while the second positioning groove may be positioned farther from the C-shaped groove at the far end of the buckle heads rotation axis. A glass bead spring extends from one end of the groove side wall onto the first sliding joint. When the glass bead spring may be inserted into the first positioning groove, the buckle head may be locked in place; when i