Search

CN-224206486-U - Waist rest

CN224206486UCN 224206486 UCN224206486 UCN 224206486UCN-224206486-U

Abstract

The waist rest comprises a back plate and at least one group of support assemblies arranged on the back plate, wherein the support assemblies comprise a cross beam and two support plates, the two support plates are symmetrically arranged on the cross beam through elastic assemblies, the cross beam can be arranged on the back plate in a vertically movable mode, the front face of the back plate is provided with a sliding rail which extends vertically, the cross beam is in sliding fit with the sliding rail, the cross beam is provided with a locking mechanism, the sliding rail is provided with a plurality of locking holes which are arranged at intervals along the length direction of the sliding rail, the locking mechanism comprises locking pins which can be inserted into or separated from the locking holes, the cross beam can be limited to move up and down when the locking pins are separated from the locking holes, the two support plates used for supporting the waist and the back of a human body are symmetrically arranged on the cross beam, and the cross beam can be connected with the back plate in a vertically movable mode through the sliding rail and the locking mechanism, and the heights of the two support plates can be simultaneously adjusted.

Inventors

  • ZHOU QINGSONG

Assignees

  • 周青松

Dates

Publication Date
20260508
Application Date
20250626

Claims (10)

  1. 1. A lumbar support comprises a back plate and at least one group of support components arranged on the back plate and is characterized in that the support components comprise a cross beam and two support plates, the two support plates are symmetrically arranged on the cross beam through elastic components, the cross beam is arranged on the back plate in a vertically movable and adjustable mode, a sliding rail extending up and down is arranged on the front face of the back plate, the cross beam is in sliding fit with the sliding rail, a locking mechanism is arranged on the cross beam, a plurality of locking holes are arranged on the sliding rail at intervals along the length direction of the sliding rail, the locking mechanism comprises locking pins which can be inserted into or separated from the locking holes, the cross beam can be limited to move up and down when the locking pins are inserted into the locking holes, and the cross beam can move up and down when the locking pins are separated from the locking holes.
  2. 2. A lumbar support according to claim 1, wherein the locking mechanism comprises a slider, an elastic member, an operating handle and the locking pin, a chute is provided on the cross member, the slider is movably provided in the chute between a locking position and a releasing position, the locking pin is fixedly provided on the slider, the operating handle is fixedly provided on the slider and extends to the outside of the cross member, the locking pin is inserted into the locking hole to restrict the cross member from moving up and down when the slider is in the locking position, the locking pin is disengaged from the locking hole to move the cross member up and down when the slider is in the releasing position, and the elastic member is used for driving the slider to move to the locking position.
  3. 3. A lumbar support according to claim 2, wherein said cross member is provided with a reduced slot in sliding engagement with said slide rail, and wherein said slide rail is adapted to fit within said reduced slot.
  4. 4. A lumbar support according to claim 3, wherein a cover plate for closing the sliding groove is arranged on the cross beam, a groove is arranged on the cross beam, and the cover plate extends to the inner side of the notch of the groove to form the necking groove.
  5. 5. The lumbar support according to claim 4, wherein the sliding rail comprises two side plates and two raised strips, the two side plates are arranged in parallel at intervals and extend up and down, the two raised strips are respectively arranged on the outer side surfaces of the two side plates and extend up and down, and the raised strips are positioned in the necking grooves and blocked by the cover plate to limit the sliding rail to be separated from the necking grooves.
  6. 6. A lumbar support according to claim 5, wherein said locking apertures are formed in said side plates.
  7. 7. The lumbar support according to claim 6, wherein the cross member is provided with two locking mechanisms, a plurality of locking holes are formed in the two side plates at intervals along the length direction of the cross member, and locking pins of the two locking mechanisms are respectively matched with the locking holes of the two side plates.
  8. 8. A lumbar support according to any one of claims 2 to 7, comprising two operation handles connected to upper and lower sides of the slider and extending to upper and lower sides of the cross member, respectively, the operation handles comprising an extension section extending transversely to an end of the cross member, and a convex blocking portion formed at an outer end of the extension section.
  9. 9. A lumbar support according to any one of claims 1-7, comprising two support members disposed above and below each other.
  10. 10. A lumbar support according to any one of claims 2-7, wherein said operating handle is disposed at an end of said cross beam.

Description

Waist rest Technical Field The utility model relates to a lumbar support. Background Chinese patent document CN216147631U discloses a height adjusting mechanism and a backrest device. The height adjusting mechanism comprises a frame body, a first compression spring, a locking plate and a locking block, wherein the locking block is arranged in an accommodating space of the frame body through the first compression spring, a locking column on the locking block is matched with a unidirectional locking groove on the locking plate, a vertical slideway and a resetting slideway, unidirectional self-locking height adjustment can be realized, the backrest device comprises two backrest plates which are arranged at left and right intervals, a buffer connecting part is arranged on the back side of each backrest plate, each buffer connecting part is connected with a backboard through a height adjusting mechanism, the two backrest plates of the structure are independently adjusted and do not conform to the ergonomics, and generally, the two backrest plates are in bilateral symmetry structure, so that the two height adjusting mechanisms are not required to be arranged to realize independent adjustment of the two backrest plates, the cost is increased, and the height adjustment is unfavorable. Disclosure of Invention The utility model aims to overcome the defects in the prior art and provide the waist rest which can be conveniently adjusted in height and accords with ergonomics. The aim of the utility model is realized by the following technical scheme: A lumbar support comprises a back plate and at least one group of support components arranged on the back plate and is characterized in that the support components comprise a cross beam and two support plates, the two support plates are symmetrically arranged on the cross beam through elastic components, the cross beam is arranged on the back plate in a vertically movable and adjustable mode, a sliding rail extending up and down is arranged on the front face of the back plate, the cross beam is in sliding fit with the sliding rail, a locking mechanism is arranged on the cross beam, a plurality of locking holes are arranged on the sliding rail at intervals along the length direction of the sliding rail, the locking mechanism comprises locking pins which can be inserted into or separated from the locking holes, the cross beam can be limited to move up and down when the locking pins are inserted into the locking holes, and the cross beam can move up and down when the locking pins are separated from the locking holes. The two supporting plates for supporting the waist and the back of the human body are symmetrically arranged on the cross beam, the cross beam is connected with the back plate in a vertically movable manner through the sliding rail and the locking mechanism, so that the heights of the two supporting plates can be adjusted simultaneously, and in addition, the locking mechanism is arranged on the cross beam, so that the cross beam can be lifted and lowered during the operation of the locking mechanism, and the adjustment operation of the supporting assembly is facilitated. The locking mechanism comprises a sliding piece, an elastic piece, an operating handle and a locking pin, wherein a sliding groove is formed in the cross beam, the sliding piece can be movably arranged in the sliding groove between a locking position and a releasing position, the locking pin is fixedly arranged on the sliding piece, the operating handle is fixedly arranged on the sliding piece and extends to the outside of the cross beam, when the sliding piece is in the locking position, the locking pin is inserted into the locking hole to limit the cross beam to move up and down, when the sliding piece is in the releasing position, the locking pin is separated from the locking hole to enable the cross beam to move up and down, the elastic piece is used for driving the sliding piece to move to the locking position, when the height of the supporting component needs to be adjusted, the sliding piece can be moved to the releasing position through pulling the operating handle, then the operating handle is released to enable the sliding piece to move to the locking position under driving of the elastic piece, and the locking pin is inserted into the locking hole to limit the cross beam to move up and down so as to complete positioning after adjustment, and the operation is convenient. The crossbeam is provided with slide rail sliding fit's throat groove, and the slide rail adaptation is installed in the throat groove, can make the upper and lower slip of crossbeam more smooth and easy stability through throat groove and slide rail cooperation. The sliding piece is characterized in that the cross beam is provided with a cover plate for sealing the sliding groove, the cross beam is provided with a groove, the cover plate extends to the inner side of the notch of the groove to form the necking groove, and