US-12618511-B2 - Support frame structure with locking mechanism

US12618511B2US 12618511 B2US12618511 B2US 12618511B2US-12618511-B2

Abstract

A support frame structure includes a fixed base, a support mechanism and a pedestal, the support mechanism includes a first rotary joint, a second rotary joint and an arm assembly, the first rotary joint is pivoted to the fixed base, the second rotary joint and the first rotary joint are connected to two ends of the arm assembly respectively, the arm assembly includes an upper arm and a lower arm, the support mechanism further includes a pneumatic cylinder and a locking assembly, two ends of the pneumatic cylinder are pivoted to the first rotary joint and the upper arm respectively, two ends of the locking assembly are connected to the second rotary joint and the lower arm respectively; the pedestal is pivoted to the second rotary joint, and the arm assembly is positioned at a predetermined angle by operating the locking assembly.

Inventors

Chin-Chu Li

Assignees

DIWEI INDUSTRIAL CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20240817
Priority Date: 20231025

Claims (9)

1 . A support frame structure with a locking mechanism, the support frame structure comprising: a fixed base; a support mechanism, comprising a first rotary joint, a second rotary joint and an arm assembly, the first rotary joint connected pivotally to the fixed base, the second rotary joint and the first rotary joint coupled to two ends of the arm assembly respectively, the arm assembly comprising an upper arm and a lower arm, the support mechanism further comprising a pneumatic cylinder and a locking assembly, two ends of the pneumatic cylinder connected pivotally to the first rotary joint and the upper arm respectively, two ends of the locking assembly coupled to the second rotary joint and the lower arm respectively; and a pedestal, connected pivotally to the second rotary joint; wherein the arm assembly is positioned at a predetermined angle by operating the locking assembly; wherein the locking assembly comprising a slider rod and a bushing, one end of the slider rod is coupled to the second rotary joint, and another end of the slider rod is movably inserted to the bushing.
2 . The support frame structure according to claim 1 , wherein the locking assembly further comprises a spanner handle, an adjusting screw and a nut, the spanner handle is coupled to the adjusting screw, and the adjusting screw passes through the lower arm and the bushing and is screwed with the nut.
3 . The support frame structure according to claim 2 , wherein the lower arm comprises a U-shaped base disposed therein, the bushing is accommodated in the U-shaped base, and the adjusting screw passes through the U-shaped base.
4 . The support frame structure according to claim 3 , wherein the spanner handle is disposed outside the lower arm.
5 . The support frame structure according to claim 1 , wherein the second rotary joint comprises a second housing and a second corner plate, and the second corner plate is fixed in the second housing.
6 . A support frame structure with a locking mechanism, the support frame structure comprising: a fixed base; a support mechanism, comprising a first rotary joint, a second rotary joint and an arm assembly, the first rotary joint connected pivotally to the fixed base, the second rotary joint and the first rotary joint coupled to two ends of the arm assembly respectively, the arm assembly comprising an upper arm and a lower arm, the support mechanism further comprising a pneumatic cylinder and a locking assembly, two ends of the pneumatic cylinder connected pivotally to the first rotary joint and the upper arm respectively, two ends of the locking assembly coupled to the second rotary joint and the lower arm respectively; and a pedestal, connected pivotally to the second rotary joint; wherein the arm assembly is positioned at a predetermined angle by operating the locking assembly; wherein the first rotary joint comprises a first housing, a first corner plate, a fixed block and a screw, the fixed base comprises a receiving hole, the first housing is rotatably coupled to the receiving hole, the first corner plate is fixed inside the first housing, the fixed block is fixed to the first corner plate through the screw passing through the first corner plate, and an end of the fixed block away from the screw is provided with a pivot hole for one end of the pneumatic cylinder to be pivotally coupled.
7 . The support frame structure according to claim 6 , wherein the upper arm comprises a U-shaped frame installed therein, and another end of the pneumatic cylinder is coupled to the upper arm through the U-shaped frame.
8 . A support frame structure with a locking mechanism, the support frame structure comprising: a fixed base; a support mechanism, comprising a first rotary joint, a second rotary joint and an arm assembly, the first rotary joint connected pivotally to the fixed base, the second rotary joint and the first rotary joint coupled to two ends of the arm assembly respectively, the arm assembly comprising an upper arm and a lower arm, the support mechanism further comprising a pneumatic cylinder and a locking assembly, two ends of the pneumatic cylinder connected pivotally to the first rotary joint and the upper arm respectively, two ends of the locking assembly coupled to the second rotary joint and the lower arm respectively; and a pedestal, connected pivotally to the second rotary joint; wherein the arm assembly is positioned at a predetermined angle by operating the locking assembly; wherein the first rotary joint comprises a first housing with a first shaft connection hole, the second rotary joint comprises a second housing with a third shaft connection hole, the upper arm comprises a first shaft and a second shaft, the first shaft passes through the first shaft connection hole and the upper arm is connected pivotally to the first housing, and the second shaft passes through the third shaft connection hole and the upper arm is connected pivotally to the second housing.
9 . The support frame structure according to claim 8 , wherein the first housing comprises a second shaft connection hole, the second housing comprises a fourth shaft connection hole, the lower arm comprises a first cam and a second cam, the first cam passes through the second shaft connection hole and the lower arm is connected pivotally to the first housing, and the second cam passes through the fourth shaft connection hole and the lower arm is connected pivotally to the second housing.

Description

BACKGROUND OF THE DISCLOSURE Technical Field The present disclosure relates to a support frame structure, and more particularly relates to a support frame structure with a locking mechanism. Related Art Support frame is a frame provided for supporting a display screen, and mainly includes a support arm with a seat at the lower end of the support arm and a fixed clamp connected under the seat, by means of which the support frame is clamped and fixed at an appropriate position. In addition, the upper end of the support arm is provided with a pedestal base for placing the display screen, and the support arm is internally provided with a pneumatic cylinder, the upper end of the pneumatic cylinder is connected to the support arm, the lower end of the pneumatic cylinder is provided with a fixed base having a protruding pivot extending separately from the left and right sides of the fixed base, two slide shafts are fitted into two slide grooves on the left and right sides of the seat respectively, and the fixed base is provided with a screw hole for connecting a position adjusting screw. Therefore, the lower end of the pneumatic cylinder can be used as a fulcrum to support the support arm to adjust the weight of the support frame. In addition to the function of mounting the display screen, the related art support frame structure also needs to mount a keyboard or other input devices. As the peripherals such as display screens and keyboards continue to be added, the weight the support frame structure can bear is gradually insufficient. Therefore, various undesirable situations such as the aforementioned peripherals moving downward or shifting often occur during use or operation. In view of this problem, the present discloser has focused on the above drawbacks of the related art to conduct extensive research and experiment to overcome the problem. SUMMARY OF THE DISCLOSURE The present disclosure is directed to a support frame structure with a locking mechanism and capable of preventing an arm assembly from shifting to varying degrees due to the weight of the peripherals. To achieve the aforementioned objective, the present disclosure provides a support frame structure with a locking mechanism, which includes a fixed base, a support mechanism and a pedestal, the support mechanism includes a first rotary joint, a second rotary joint and an arm assembly, the first rotary joint is pivoted to the fixed base, the second rotary joint and the first rotary joint are connected to two ends, of the arm assembly respectively, the arm assembly includes an upper arm and a lower arm, the support mechanism further includes a pneumatic cylinder and a locking assembly, two ends of the pneumatic cylinder are pivoted to the first rotary joint and the upper arm respectively, two ends of the locking assembly are connected to the second rotary joint and the lower arm respectively; the pedestal is pivoted to the second rotary joint; wherein the arm assembly can be positioned at a predetermined angle through the operation of the locking assembly. The present disclosure has the advantageous effect of stably maintaining the display screen, the keyboard, and other peripherals at an appropriate working height for operation through the configuration of the locking assembly. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a support frame structure with a locking mechanism of the present disclosure applied to the combination of a display device and a keyboard; FIG. 2 is a perspective view of a support frame structure with a locking mechanism of the present disclosure; FIG. 3 is an exploded view of a support arm of the present disclosure; FIG. 4 is a schematic view of a locking assembly and a pneumatic cylinder of the present disclosure; FIG. 5 is a cross-sectional view of a locking assembly of the present disclosure; and FIG. 6 is a cross-sectional view showing the using status of a support frame structure with a locking mechanism of the present disclosure. DETAILED DESCRIPTION The technical characteristics of this disclosure will become apparent with the detailed description accompanied with the illustration of related drawings as follows. It is noteworthy that the embodiments and drawings disclosed herein are to be considered illustrative rather than restrictive. With reference to FIGS. 1 to 5 for a support frame structure with a locking mechanism of the present disclosure, the support frame structure is provided for mounting peripherals which include but not limited to a display screen 7 and a keyboard 8 in this embodiment, and the support frame structure mainly includes a fixed base 10, a support mechanism 20 and a pedestal 30. The fixed base 10 is provided to be fixed onto a board or a wall, and it has a receiving hole 11. The support mechanism 20 mainly includes a first rotary joint 21, a second rotary joint 22 and an arm assembly 23, the first rotary joint 21 is pivoted to the fixed base 10, the second rotary joint 22 and the