CN217778457U

CN217778457U - Adjusting mechanism of chair armrest

Info

Publication number: CN217778457U
Application number: CN202221719327.0U
Authority: CN
Inventors: 刘昌金; 刘非凡
Original assignee: Taicang Kaige Auto Parts Co ltd
Current assignee: Taicang Kaige Auto Parts Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-11-11
Anticipated expiration: 2032-07-04

Abstract

The utility model provides an adjusting mechanism of a chair armrest, which comprises a C-shaped linear groove rail, an armrest body and an adjusting module; the C-shaped linear groove rail is fixedly connected to the seat, and the adjusting module comprises a height adjusting block and a rotating adjusting block which are fixedly connected; the armrest body is rotatably arranged on the rotary adjusting block by 90 degrees, and the height adjusting block makes linear motion along the C-shaped linear groove rail; one end of the positioning support rod penetrates through a spring cavity of the height adjusting block and is inserted into a positioning hole on the inner side of the C-shaped linear groove rail, a convex block is arranged in the middle of the positioning support rod, and a spring assembly in the spring cavity limits the positioning support rod in the positioning hole by abutting against the convex block; the other end of location vaulting pole is provided with end block, offer on the outside lateral wall of C shape straight line grooved rail with end block complex sliding tray, and the sliding tray is top open-ended U-shaped groove, the utility model discloses not only have and to realize height adjustment and rotatory folding effect, also can make things convenient for the later stage to maintain alone to handrail structure to change moreover, and change also comparatively labour saving and time saving when maintaining.

Description

Adjusting mechanism of chair armrest

Technical Field

The utility model relates to an adjustment mechanism, especially an adjustment mechanism of armrest.

Background

In the field of automobiles, a known automobile seat comprises a seat and a backrest, and the automobile seat is provided with an armrest, so that a seat passenger can put his arm on the armrest, and in order to improve the comfort level of the passenger, it is particularly important to set the armrest as an adjusting structure having height adjustment and rotary folding functions so as to facilitate the passenger to get in and out, but the existing armrest is generally fixed on the seat in a direct positioning manner, and when the armrest needs to be maintained and replaced, the armrest needs to be replaced in combination with the seat as a whole, and the armrest provided with the adjusting structure is subjected to height adjustment and rotary folding frequently, and after frequent height adjustment and rotary folding, the adjusting structure inevitably suffers wear and aging, so that the function of the armrest as a whole is affected, and when the armrest cannot be replaced independently, the later maintenance cost is also increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a chair armrest's adjustment mechanism not only has the effect that can realize height adjustment and rotatory folding, but also can make things convenient for the later stage to maintain alone to handrail structure to change, and change also comparatively labour saving and time saving when maintaining.

The utility model provides a following technical scheme:

an adjusting mechanism of a seat armrest comprises a C-shaped linear groove rail, an armrest body and an adjusting module;

the C-shaped linear groove rails are fixedly arranged on the side portions of the seats, when two groups of armrests are required to be arranged on one group of seats, the C-shaped linear groove rails can be arranged on the two sides of the seat back, the length of each C-shaped linear groove rail can be set according to adjustment requirements, and each adjusting module comprises a height adjusting block and a rotating adjusting block which are fixedly connected; the handrail body is rotatably arranged on the rotary adjusting block, the rotary adjusting block is also provided with a first limiting end and a second limiting end which are used for limiting the handrail body in a 90-degree angle range to swing and rotate, a spring cavity is arranged in the height adjusting block, and the outline of the height adjusting block is matched in a notch of the C-shaped linear groove rail and slides linearly along the C-shaped linear groove rail;

one end of the positioning support rod penetrates through the spring cavity and is inserted into a positioning hole on the inner side of the C-shaped linear groove rail, a plurality of groups of positioning holes are arranged and distributed in a linear mode along the C-shaped linear groove rail, a group of convex blocks are fixed in the middle of the positioning support rod, a spring assembly in the spring cavity is sleeved outside the positioning support rod, and the positioning support rod is limited in the positioning hole through abutting against the convex blocks;

the other end of the positioning support rod is provided with an end block, the outer side wall of the C-shaped linear groove rail is provided with a sliding groove matched with the end block, the sliding groove is a U-shaped groove with an opening at the top end, when the end block is pulled outwards, a convex block on the positioning support rod compresses the spring assembly and enables the end part of the spring assembly to be separated from the positioning hole, at the moment, the handrail body is dragged, the adjusting module can linearly move along the C-shaped linear groove rail, until the positioning insert rod moves to the next group of positioning holes, the positioning insert rod can be pressed by the spring assembly to automatically extend into the corresponding positioning hole for positioning, when the height of the handrail needing to be adjusted is larger, the positioning support rod can be pulled outwards firstly, the positioning support rod is released after the handrail body is dragged to move to the approximate position needing to move, the handrail body is dragged for fine adjustment, and when the positioning insert rod moves to the position near the positioning holes, the handrail body can be repositioned, and the height adjustment is completed.

Preferably, the handrail body includes fixed connection's rotation end and supporting part, rotates the end and rotates to be connected in the rotatory adjusting block notch of U-shaped, and the one end of rotatory adjusting block notch is arranged in to spacing one, and with rotatory supporting part butt location to horizontal position, and the other end of rotatory adjusting block notch is arranged in to spacing two, and with rotatory supporting part butt location to vertical position.

Preferably, in order to ensure that the supporting part is positioned at the horizontal position or the vertical position, the first limiting end and the second limiting end are provided with magnetic attraction blocks, the magnetic attraction blocks are fixed with the iron blocks arranged in the supporting part in a magnetic way, so that the supporting part can be stably rotated to the position, and when the supporting part needs to be rotated, a passenger can apply force, and the magnetic attraction blocks can be separated from the iron blocks.

Preferably, in order to improve the stability of the positioning of the height adjusting block on the C-shaped linear groove rail, at least two groups of positioning support rods are provided, the end blocks on the positioning support rods are connected by a group of connecting plates, and the connecting plates are further provided with pull rings which are convenient for pulling the positioning insertion rods outwards.

Preferably, in order to avoid passengers to fall off the handrail body from the sliding groove at will, a group of detachable sealing blocks can be plugged at the opening at the top end of the sliding groove, and the sealing blocks are fixedly connected with the C-shaped linear sliding rail through screws.

Preferably, in order to improve the overall uniformity and the stability of the linear motion of the adjusting module along the C-shaped linear slot rail, an extension back plate for abutting against one side of the rotation adjusting block is further arranged on the inner side of the C-shaped linear slot rail, and the other side of the rotation adjusting block is arranged to be flush with the outer side of the C-shaped linear slot rail.

The utility model has the advantages that:

1. the utility model is provided with the height adjusting block and the rotary adjusting block which are fixedly connected, the height adjusting block can be matched with the C-shaped linear groove rail to complete the height adjustment, and the rotary adjusting block is matched with the handrail body to complete the rotary folding so as to facilitate the passing of personnel;

2. and because C shape straight line grooved rail is fixed mounting in the seat lateral part, and length can be according to the adjustment needs by the producer cooperation seat when production and set for, when handrail body and adjustment module need be changed, because the sliding tray is open-ended U-shaped groove in top, consequently outwards pull the location vaulting pole, upwards drag out handrail body can, comparatively swiftly convenient.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a top sectional view of the present invention;

FIG. 3 is a front cross-sectional view of the armrest body and the adjustment module with the support portion rotated to an upright position;

notation in the figure: the handrail assembly comprises a C-shaped linear groove rail 1, a handrail body 2, an adjusting module 3, a connecting plate 4, a pull ring 5, a sliding groove 11, a sealing block 12, an extension back plate 13, a rotating end 21, a supporting portion 22, an iron block 23, a height adjusting block 31, a rotation adjusting block 32, a first limiting end 33, a second limiting end 34, a spring cavity 35, a positioning stay bar 36, a convex block 37, a spring assembly 38 and an end block 39.

Detailed Description

With reference to fig. 1 to 3, an adjusting mechanism of a seat armrest includes, in this embodiment, a C-shaped linear groove rail 1, an armrest body 2, and an adjusting module 3; the C-shaped linear groove rails 1 are fixedly arranged on the side portions of the seats, when two groups of armrests are required to be arranged on one group of seats, the C-shaped linear groove rails 1 can be arranged on the two sides of the seat back, the length of each C-shaped linear groove rail 1 can be set according to adjustment requirements, and each adjusting module 3 comprises a height adjusting block 31 and a rotating adjusting block 32 which are fixedly connected; the handrail body 2 is rotatably arranged on the rotary adjusting block 32, the rotary adjusting block 32 is also provided with a first limiting end 33 and a second limiting end 34 which are used for limiting the handrail body 2 to swing and rotate within the 90-degree angle range, a spring cavity 35 is arranged in the height adjusting block 31, the outline of the spring cavity is matched in the notch of the C-shaped linear groove rail 1 and slides linearly along the C-shaped linear groove rail;

one end of the positioning support rod 36 penetrates through the spring cavity 35 and is inserted into a positioning hole on the inner side of the C-shaped linear grooved rail 1, a plurality of groups of positioning holes are arranged and distributed linearly along the C-shaped linear grooved rail 1, a group of convex blocks 37 are fixed in the middle of the positioning support rod 36, a spring assembly 38 in the spring cavity 35 is sleeved outside the positioning support rod 36, and the positioning support rod 36 is limited in the positioning hole through pressing the convex blocks 37;

the other end of the positioning support rod 36 is provided with an end block 39, the outer side wall of the C-shaped linear groove rail 1 is provided with a sliding groove 11 matched with the end block 39, the sliding groove 11 is a U-shaped groove with an opening at the top end, when the end block 39 is pulled outwards, the convex block 37 on the positioning support rod 36 compresses the spring assembly 38 and enables the end part of the spring assembly 38 to be separated from the positioning hole, at the moment, the handrail body 2 is dragged, the adjusting module 3 can move linearly along the C-shaped linear groove rail 1 until the positioning insertion rod moves to the next group of positioning holes, the positioning insertion rod can automatically extend into the corresponding positioning hole to be positioned under the pressing action of the spring assembly 38, and when the height of the handrail to be adjusted is larger, the positioning support rod 36 can be pulled outwards firstly, the handrail body 2 is dragged to be moved to the approximate position needing to be moved, then the positioning support rod 36 is released, at the handrail body 2 is dragged to be finely adjusted at the moment, and when the positioning insertion rod moves to the adjacent positioning holes, the height can be positioned again, and the height adjustment is completed.

The armrest body 2 comprises a rotating end 21 and a supporting portion 22 which are fixedly connected, the rotating end 21 is rotatably connected in a U-shaped rotating adjusting block 32 notch, a first limiting end 33 is arranged at one end of the rotating adjusting block 32 notch and is abutted and positioned with the supporting portion 22 rotating to the horizontal position, and a second limiting end 34 is arranged at the other end of the rotating adjusting block 32 notch and is abutted and positioned with the supporting portion 22 rotating to the vertical position.

In order to ensure the positioning of the supporting part 22 rotating to the horizontal position or the vertical position, the first limiting end 33 and the second limiting end 34 are provided with magnetic blocks, and the magnetic blocks are magnetically fixed with the iron block 23 arranged in the supporting part 22, so that the supporting part 22 can stably rotate in place, and when the supporting part 22 needs to be rotated, a passenger can apply force to separate the magnetic blocks from the iron block 23.

In order to improve the stability of the positioning of the height adjusting block 31 on the C-shaped linear groove rail 1, two sets of positioning support rods 36 are provided, and end blocks 39 on the positioning support rods 36 are connected by a set of connecting plates 4, which are further provided with pull rings 5 for conveniently pulling the positioning insertion rods outwards.

In order to prevent passengers from falling off the handrail body 2 from the sliding groove 11 at will, a group of detachable sealing blocks 12 can be plugged and connected at the opening at the top end of the sliding groove 11, and the sealing blocks 12 are fixedly connected with the C-shaped linear sliding rail through screws.

In order to improve the overall uniformity and the stability of the linear motion of the adjusting module along the C-shaped linear groove rail 1, the inner side of the C-shaped linear groove rail 1 is further provided with an extension back plate 13 for abutting against one side of the rotation adjusting block 32, and the other side of the rotation adjusting block 32 is arranged to be flush with the outer side of the C-shaped linear groove rail 1.

The utility model discloses a theory of operation is: when the height adjusting device is used, when the height is required to be adjusted, the adjusting module 3 can linearly move along the C-shaped linear groove rail 1 by dragging the handrail body 2 until the positioning inserted rod moves to the next group of positioning holes, the positioning inserted rod can automatically extend into the corresponding positioning hole for positioning under the abutting pressure of the spring assembly 38, when the height of the handrail required to be adjusted is larger, the positioning support rod 36 can be pulled outwards firstly, the positioning support rod 36 is released after the handrail body 2 is dragged to move to the approximate position required to move, the handrail body 2 is dragged to be finely adjusted at the moment, and when the positioning inserted rod moves to the adjacent positioning holes, the positioning inserted rod can be positioned again to complete the height adjustment; and when needs rotate folding so that the passenger passes in and out the seat, the passenger carries out to supporting part 22 and rotates the application of force for the magnetism piece that is used for horizontal location or vertical location breaks away from with iron plate 23, and then can accomplish rotatory operation behind the rotatory 90 with supporting part 22, comparatively labour saving and time saving.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The adjusting mechanism of the seat armrest is characterized by comprising a C-shaped linear groove rail, an armrest body and an adjusting module; the C-shaped linear groove rail is fixedly arranged on the side part of the seat, and the adjusting module comprises a height adjusting block and a rotating adjusting block which are fixedly connected; the handrail body is rotatably arranged on the rotary adjusting block, the rotary adjusting block is also provided with a first limiting end and a second limiting end which are used for limiting the handrail body in a 90-degree angle range to swing and rotate, a spring cavity is arranged in the height adjusting block, and the outline of the height adjusting block is matched in a notch of the C-shaped linear groove rail and slides linearly along the C-shaped linear groove rail;

one end of the positioning support rod penetrates through the spring cavity and is inserted into a positioning hole on the inner side of the C-shaped linear groove rail, a plurality of groups of positioning holes are arranged and distributed in a linear mode along the C-shaped linear groove rail, a group of convex blocks are fixed in the middle of the positioning support rod, a spring assembly in the spring cavity is sleeved outside the positioning support rod, and the positioning support rod is limited in the positioning hole by abutting against the convex blocks;

the other end of the positioning support rod is provided with an end block, the outer side wall of the C-shaped linear groove rail is provided with a sliding groove matched with the end block, the sliding groove is a U-shaped groove with an opening at the top end, and when the end block is pulled outwards, the lug on the positioning support rod compresses the spring assembly and enables the end part of the lug to be separated from the positioning hole.

2. The adjusting mechanism of a chair armrest as claimed in claim 1, wherein the armrest body comprises a rotation end and a supporting portion which are fixedly connected, the rotation end is rotatably connected in the U-shaped rotation adjusting block notch, the first limit end is arranged at one end of the rotation adjusting block notch and is abutted with the supporting portion rotated to the horizontal position for positioning, and the second limit end is arranged at the other end of the rotation adjusting block notch and is abutted with the supporting portion rotated to the vertical position for positioning.

3. The adjusting mechanism of claim 2, wherein the first and second limiting ends are provided with magnetic blocks, and the magnetic blocks are magnetically fixed to iron blocks disposed in the supporting portions.

4. The adjusting mechanism of the chair armrest is characterized in that at least two groups of positioning support rods are arranged, end blocks on the positioning support rods are connected through a group of connecting plates, and pull rings which facilitate outward pulling of the positioning support rods are further arranged on the connecting plates.

5. The adjusting mechanism of a chair armrest as claimed in claim 1, wherein a set of detachable sealing blocks is further connected to the top opening of the sliding groove in a sealing manner, and the sealing blocks are fixedly connected to the C-shaped linear sliding rail through screws.

6. The adjusting mechanism of a chair armrest is characterized in that the inner side of the C-shaped linear groove track is further provided with an extension back plate used for abutting against one side of a rotation adjusting block, and the other side of the rotation adjusting block is arranged to be flush with the outer side of the C-shaped linear groove track.