CN218605820U

CN218605820U - Side control type handrail adjusting structure

Info

Publication number: CN218605820U
Application number: CN202222996570.3U
Authority: CN
Inventors: 安红兵
Original assignee: Guangdong Muqi Chair Industry Co ltd
Current assignee: Guangdong Muqi Chair Industry Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-14
Anticipated expiration: 2032-11-10

Abstract

A side control type handrail adjusting structure comprises a handrail support and a handrail shell, wherein the handrail shell is sleeved outside the handrail support in a sliding mode, a matching groove is formed in one side of the upper end of the handrail support, a plurality of gear clamping grooves are formed in the groove wall of the matching groove, a height positioning mechanism is arranged in the handrail shell and comprises a positioning base, a positioning swinging piece and a driving spring, the positioning base is installed on the handrail shell, and the lower end of the positioning base extends into the matching groove; the middle part of the positioning swinging piece is hinged with the positioning base, one end of the driving spring is connected to the positioning base, and the other end of the driving spring is connected to the upper end of the positioning swinging piece; and a locking convex part matched with the gear clamping groove is convexly arranged at the lower end of the positioning swinging piece. The utility model discloses simplify high positioning mechanism's structure, reduced high positioning mechanism's spare part, guaranteed high positioning mechanism's installation stability, made things convenient for the production equipment of handrail simultaneously.

Description

Side control type handrail adjusting structure

Technical Field

The utility model relates to a chair technical field, concretely relates to side accuse formula handrail adjusts structure.

Background

The office chair refers to various chairs which are equipped for working conveniently in daily work and social activities. In order to make the arms of the user more comfortable to place on the armrests of the office chair, the armrests of some existing office chairs can be adjusted up and down.

For example, chinese patent publication No. CN208403805U discloses a seat armrest with a lifting function, which includes a support, a housing, and a panel assembly disposed on the upper portion of the housing, where the housing is of a hollow sleeve structure and is sleeved outside the support, a positioning mechanism for adjusting the relative positions of the housing and the support is disposed between the housing and the support, the positioning mechanism includes a first frame fixedly connected to the housing, a return spring, a positioning block, a pull handle penetrating through the housing, and a tension spring for connecting the pull handle and the first frame, the support is provided with a plurality of vertically arranged clamping grooves, the positioning block is provided with a convex column, and the positioning block and the first frame are oppositely provided with two accommodating grooves for being sleeved at both ends of the return spring, the pull handle drives the convex column to alternately engage and disengage with the clamping grooves, the pull handle is disposed on the second frame, and the first frame is provided with a groove for accommodating the second frame to slide; according to the technical scheme, the height of the handrail can be adjusted, and the height position of the handrail is locked through the positioning mechanism after the height is adjusted.

However, the positioning structure of the technical solution has many components, and the position relationship and the connection relationship between the components are complex, so that the installation stability is poor, and the production and the assembly are inconvenient. Therefore, there is a need for improvements in current lifting handrails.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a side control type handrail adjusting structure.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a structure is adjusted to side accuse formula handrail, includes that handrail support, slip cap establish handrail shell outside handrail support, locate handrail panel assembly on handrail shell top, be equipped with the cooperation recess on one side of handrail support upper end, be equipped with a plurality of gear draw-in grooves that set up from last to arranging down on the cell wall of cooperation recess, be equipped with in the handrail shell and be used for with the high positioning mechanism of gear draw-in groove cooperation locking height, its characterized in that: the height positioning mechanism comprises a positioning base, a positioning swinging piece and a driving spring, wherein the positioning base is arranged on the handrail shell, and the lower end of the positioning base extends into the matching groove; the middle part of the positioning swinging piece is hinged with the positioning base, one end of the driving spring is connected to the positioning base, and the other end of the driving spring is connected to the upper end of the positioning swinging piece; the lower end of the positioning swinging piece is provided with a locking convex part used for being matched with the gear clamping groove in a protruding mode, the upper end of the positioning swinging piece is provided with an unlocking convex part in a protruding mode, and a pressing through hole corresponding to the unlocking convex part is formed in the side face of the armrest shell.

The utility model discloses in, the cover is equipped with the unblock button on the unblock convex part, the unblock button stretches out outside handrail shell from pressing the through-hole.

The utility model discloses in, the bottom of armrest support is equipped with the seat support connecting portion, seat support connecting portion set up with armrest support integrated into one piece.

The utility model discloses in, the upper portion of location base is equipped with first location arch, the upper end of location swinging piece is equipped with second location arch, drive spring's one end suit is on first location arch, and other end suit is on second location arch.

The utility model discloses in, the gear draw-in groove comprises two gear lockholes that set up side by side around by, the locking convex part has two, and two locking convex parts can cartridge cooperation respectively in two gear lockholes of same gear draw-in groove under drive spring's effect.

The utility model discloses in, still be equipped with a plurality of locking convex parts that set up from last to arranging down on the cell wall of cooperation recess, the quantity of locking convex part is the same with the quantity of gear draw-in groove, and the top correspondence of every gear draw-in groove has a locking convex part, be equipped with on the swing piece of location and supply locking convex part male locking cooperation groove, the bottom in locking cooperation groove is equipped with and is used for with locking convex part complex cooperation convex part.

The utility model discloses in, the bottom surface of locking convex part supports the locking fitting surface on cooperation convex part top for being used for the activity, one side of locking convex part is for being used for with cooperation convex part sliding fit's the protruding cambered surface that resets.

The utility model discloses in, the arch is provided with the direction convex base on the outside of handrail support, be equipped with the guide way on the direction convex base, the arch is provided with the direction protruding rail of direction cooperation in the guide way on the inboard of handrail shell.

In the utility model, the positioning base is provided with a movable groove, and the positioning swinging piece is movably arranged in the movable groove; hinge holes are formed in two opposite groove walls of the movable groove, a hinge shaft is arranged on the positioning swinging piece in a protruding mode, and the hinge shaft is movably matched in the hinge holes.

The utility model has the advantages that: the height positioning mechanism of the utility model comprises a positioning base, a positioning swinging piece and a driving spring, wherein the positioning base is arranged on the handrail shell, the middle part of the positioning swinging piece is hinged with the positioning base, one end of the driving spring is connected on the positioning base, and the other end of the driving spring is connected on the upper end of the positioning swinging piece; the utility model discloses a handrail, including handrail support, location swing piece, locking convex part, height positioning mechanism, the installation stability of height positioning mechanism, make things convenient for the production equipment of handrail simultaneously, the whole packaging efficiency of handrail has been improved.

Drawings

The invention will be further explained with reference to the drawings and the embodiments below:

FIG. 1 is an exploded view of the first embodiment;

FIG. 2 is an exploded view of the second embodiment;

FIG. 3 is an enlarged view of a portion of the armrest support and positioning swing;

fig. 4 is a schematic view of the locking protrusion being inserted into the shift position lock hole;

FIG. 5 is a schematic view of the locking tab being inserted into the locking engagement slot;

FIG. 6 isbase:Sub>A schematic view of A-A in FIG. 5;

fig. 7 is a perspective view of the present embodiment.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solution in the embodiments of the present invention.

Referring to fig. 1-7, a side control type handrail adjusting structure comprises a handrail support 1, a handrail housing 2 slidably sleeved outside the handrail support 1, and a handrail panel assembly 3 arranged on the top of the handrail housing 2, wherein a matching groove 11 is formed in one side of the upper end of the handrail support 1, a plurality of gear slots 12 arranged from top to bottom are formed in the groove wall of the matching groove 11, and a height positioning mechanism used for being matched with the gear slots 12 to lock the height is arranged in the handrail housing 2.

Further, the height positioning mechanism comprises a positioning base 4, a positioning swinging piece 5 and a driving spring 6, wherein the positioning base 4 is installed on the handrail shell 2 by adopting bolts, and the lower end of the positioning base 4 extends into the matching groove 11; the middle part of the positioning swinging piece 5 is hinged with the positioning base 4, one end of the driving spring 6 is connected to the positioning base 4, and the other end of the driving spring is connected to the upper end of the positioning swinging piece 5; the lower end of the positioning swinging piece 5 is convexly provided with a locking convex part 51 used for being matched with the gear clamping groove 12, the upper end of the positioning swinging piece is convexly provided with an unlocking convex part 52, the side surface of the handrail shell 2 is provided with a pressing through hole 21 corresponding to the unlocking convex part 52, the unlocking convex part 52 is sleeved with an unlocking key 7, and the unlocking key 7 extends out of the handrail shell 2 from the pressing through hole 21.

In a preferred embodiment, a seat connecting portion 13 is provided at the bottom of the armrest support 1, the seat connecting portion 13 is integrally formed with the armrest support 1, and a seat connecting hole is provided in the seat connecting portion 13.

As a preferred embodiment, a first positioning protrusion 41 is disposed on the upper portion of the positioning base 4, a second positioning protrusion 53 is disposed on the upper end of the positioning swinging member 5, one end of the driving spring 6 is sleeved on the first positioning protrusion 41, and the other end of the driving spring is sleeved on the second positioning protrusion 53, so that the driving spring 6 is positioned and mounted.

In a preferred embodiment, the shift position engaging groove 12 is composed of two shift position engaging holes 121 arranged side by side in the front-rear direction, and there are two locking protrusions 51, and the two locking protrusions 51 can be respectively inserted into the two shift position engaging holes 121 of the same shift position engaging groove 12 under the action of the driving spring 6. Furthermore, a plurality of locking convex parts 14 arranged from top to bottom are further arranged on the groove wall of the matching groove 11, the number of the locking convex parts 14 is the same as that of the gear shift position clamping grooves 12, one locking convex part 14 is correspondingly arranged above each gear shift position clamping groove 12, and the locking convex parts 14 are located between two gear shift position locking holes 121 of the same gear shift position clamping groove 12; the positioning swinging piece 5 is provided with a locking matching groove 54 for inserting the locking convex part 14, the bottom of the locking matching groove 54 is provided with a matching convex part 55 for matching with the locking convex part 14, the bottom surface of the locking convex part 14 is a locking matching surface 141 for movably abutting against the top of the matching convex part 55, and when the locking matching surface 141 is matched with the top of the matching convex part 55, the locking convex part 14 limits the upward movement of the armrest shell 2, so that the height position of the locking armrest shell 2 is limited together with the locking convex part 51, and the purpose of improving the positioning quality of the armrest shell 2 is achieved; one side of the locking convex part 14 is a reset convex arc 142 for sliding matching with the matching convex part 55, when the user unlocks and drives the adjusting armrest housing 2 to move downwards, the matching convex part 55 can slide over the reset convex arc 142 in the downward movement process of the armrest housing 2, so that the locking convex part 14 is prevented from blocking the matching convex part 55 to move downwards.

In a preferred embodiment, the handrail support 1 is provided with a guide boss 15 protruding from an outer side thereof, the guide boss 15 is provided with a guide groove, and the handrail housing 2 is provided with a guide rail 22 protruding from an inner side thereof and being guided to fit in the guide groove, so that the smoothness and stability of movement of the handrail housing 2 with respect to the handrail support 1 are improved.

As a preferred embodiment, a movable groove 43 is arranged on the positioning base 4, and the positioning swinging piece 5 is movably arranged in the movable groove 43; hinge holes 44 are formed in two opposite groove walls of the movable groove 43, a hinge shaft 56 is arranged on the positioning swinging piece 5 in a protruding mode, the hinge shaft 56 is movably matched in the hinge holes 44, and through the structure, the positioning swinging piece 5 can be movably installed in the movable groove 43 and can move in the movable groove 43. In addition, the hinge shaft 56 is provided with a slope structure for facilitating the snap-in thereof into the hinge hole 44.

In a normal state, the driving spring 6 is in an unfolded state, the lower end of the positioning swinging piece 5 approaches the gear position clamping grooves 12 under the control of the driving spring 6, and the locking convex part 51 is inserted into the gear position locking hole 121 of one of the gear position clamping grooves 12, so that the current height of the handrail is kept; when the height of the handrail needs to be adjusted, the unlocking key 7 is pressed (if the unlocking key 7 is not arranged, the unlocking convex part 52 can be directly pressed), the upper end of the positioning swinging part 5 approaches to the direction of the driving spring 6 and compresses the driving spring 6, the lower end of the positioning swinging part 5 moves towards the direction far away from the gear clamping groove 12, the locking convex part 51 is made to exit from the gear locking hole 121 of the gear clamping groove 12 to achieve unlocking, and at the moment, a user can pull the handrail shell 2 to adjust the height position of the handrail shell 2 relative to the handrail support 1, so that the height of the handrail is adjusted. After the height position of the handrail is determined, the unlocking button 7 is released, the driving spring 6 is unfolded to drive the lower end of the positioning swinging piece 5 to swing to the positions of the gear clamping grooves 12, and then the locking convex part 51 is inserted into the gear locking hole 121 of one of the gear clamping grooves 12, so that the handrail keeps the current height, and the positioning and locking of the height of the handrail are completed.

The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.

Claims

1. The utility model provides a structure is adjusted to side accuse formula handrail, includes that handrail support (1), slip cap establish handrail shell (2) outside handrail support (1), locate handrail panel components (3) on handrail shell (2) top, be equipped with cooperation recess (11) on one side of handrail support (1) upper end, be equipped with a plurality of gear draw-in grooves (12) that set up from last to arranging down on the cell wall of cooperation recess (11), be equipped with in handrail shell (2) and be used for the high positioning mechanism who cooperates locking height with gear draw-in groove (12), its characterized in that: the height positioning mechanism comprises a positioning base (4), a positioning swinging piece (5) and a driving spring (6), the positioning base (4) is installed on the handrail shell (2), and the lower end of the positioning base (4) extends into the matching groove (11); the middle part of the positioning swinging piece (5) is hinged with the positioning base (4), one end of the driving spring (6) is connected to the positioning base (4), and the other end of the driving spring is connected to the upper end of the positioning swinging piece (5); the lower end of the positioning swinging piece (5) is convexly provided with a locking convex part (51) used for being matched with the gear clamping groove (12), the upper end of the positioning swinging piece is convexly provided with an unlocking convex part (52), and the side surface of the armrest shell (2) is provided with a pressing through hole (21) corresponding to the unlocking convex part (52).

2. The side-controlled armrest adjustment structure of claim 1, wherein: the unlocking convex part (52) is sleeved with an unlocking key (7), and the unlocking key (7) extends out of the handrail shell (2) from the pressing through hole (21).

3. The side-controlled armrest adjustment structure of claim 1, wherein: the chair is characterized in that a chair seat connecting part (13) is arranged at the bottom of the armrest support (1), and the chair seat connecting part (13) and the armrest support (1) are integrally formed.

4. The side-controlled armrest adjustment structure of claim 1, wherein: the upper portion of location base (4) is equipped with first location arch (41), the upper end of location swinging member (5) is equipped with second location arch (53), the one end suit of driving spring (6) is on first location arch (41), and the other end suit is on second location arch (53).

5. The side control armrest adjustment structure of claim 1, wherein: the gear clamping groove (12) is composed of two gear locking holes (121) which are arranged side by side front and back, the number of the locking convex parts (51) is two, and the two locking convex parts (51) can be respectively inserted into the two gear locking holes (121) of the same gear clamping groove (12) under the action of the driving spring (6).

6. The side control armrest adjustment structure of claim 1, wherein: still be equipped with a plurality of locking convex parts (14) that set up from last to arranging down on the cell wall of cooperation recess (11), the quantity of locking convex part (14) is the same with the quantity of gear draw-in groove (12), and the top of every gear draw-in groove (12) corresponds has a locking convex part (14), be equipped with on location swinging member (5) and supply locking convex part (14) male locking cooperation groove (54), the bottom of locking cooperation groove (54) is equipped with and is used for and locking convex part (14) complex cooperation convex part (55).

7. The side-controlled armrest adjustment structure of claim 6, wherein: the bottom surface of the locking convex part (14) is a locking matching surface (141) which is movably abutted to the top of the matching convex part (55), and one side of the locking convex part (14) is a resetting convex arc surface (142) which is in sliding fit with the matching convex part (55).

8. The side-controlled armrest adjustment structure of claim 1, wherein: the handrail is characterized in that a guide convex seat (15) is convexly arranged on the outer side of the handrail support (1), a guide groove is formed in the guide convex seat (15), and a guide convex rail (22) which is matched with the guide groove in a guide mode is convexly arranged on the inner side of the handrail shell (2).

9. The side-controlled armrest adjustment structure of claim 1, wherein: the positioning swing piece is characterized in that a movable groove (43) is formed in the positioning base (4), hinge holes (44) are formed in two opposite groove walls of the movable groove (43), hinge shafts (56) are arranged on the positioning swing piece (5) in a protruding mode, and the hinge shafts (56) are movably matched in the hinge holes (44).