CN218228760U

CN218228760U - Guide sleeve for automobile headrest

Info

Publication number: CN218228760U
Application number: CN202222589598.5U
Authority: CN
Inventors: 吴震; 孙燕芸; 杨丽玉; 史珂源; 沈阳
Original assignee: Changzhou Xuanyu Machinery Co ltd
Current assignee: Changzhou Xuanyu Machinery Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-06
Anticipated expiration: 2032-09-29

Abstract

The application discloses uide bushing for car headrest belongs to car seat technical field. The headrest is arranged on the upper side of the backrest, and fixing rods with the same number as the guide sleeves are fixed on the lower side of the headrest; the one end that the headrest was kept away from to the uide bushing is fixed with first clamp splice, and one side of first clamp splice all is provided with the second clamp splice, rotates on the skeleton to be connected with the rotary rod, and threaded connection has the removal cover on the rotary rod, second clamp splice and removal cover fixed connection. When first clamp splice and second clamp splice separation, the headrest slides to arbitrary height at will to reach the effect of infinitely variable control headrest height, through rotatory rotary rod, utilizes threaded connection to let the removal cover drive the second clamp splice and be close to first clamp splice, thereby lets first clamp splice and the fixed dead lever of second clamp splice centre gripping, reaches after the headrest altitude mixture control is accomplished, with its fixed effect. The utility model provides an effect that uide bushing reaches infinitely variable control headrest height for car headrest.

Description

Guide sleeve for automobile headrest

Technical Field

The application relates to the technical field of automobile seats, in particular to a guide sleeve for an automobile headrest.

Background

The headrest of the automobile seat is also called a back cushion, and is an auxiliary device arranged for improving the riding comfort and safety of the automobile. Has the effects of increasing the comfort of the head of the user when leaning against and protecting the head of the user. Two guide sleeves are usually fixed on a backrest top pipe of an existing automobile seat, and corresponding fixing rods are also fixed below a headrest. Usually can be provided with a block piece on one in dead lever and the uide bushing, and another is provided with a plurality of block grooves, through block piece card income block groove, reach the effect fixed between headrest and the back, and through letting block piece card go into different block grooves, just can reach the effect of control headrest height to the user is through control headrest height, comfort level when increasing the head and leaning on.

Chinese patent with publication number CN214112358U provides an adjustable seat headrest, including the seat body, be provided with the headrest inserted bar on the headrest, be provided with positioning slot on the headrest inserted bar, then be provided with the plug-in mounting hole on the seat body, be provided with the location cardboard in the plug-in mounting hole, adopt location cardboard and different positioning slot to carry out the chucking and be connected, reached the fixed effect of headrest height multistage adjustment.

However, the above-described manner results in a headrest height having only a few fixed positions, and is prone to a problem in that the height desired by the user is located between two adjacent positions. Thus causing a problem that the headrest does not have a proper height for selection.

Therefore, it is necessary to provide a guide sleeve for a headrest of an automobile, which can adjust the height of the headrest steplessly to solve the above problems.

It should be noted that the above information disclosed in this background section is only for background purposes in understanding the inventive concept, and therefore, it may contain information that does not constitute prior art.

Disclosure of Invention

Based on the above problems in the prior art, the embodiments of the present application are directed to: the guide sleeve for the automobile headrest achieves the effect of stepless adjustment of the height of the headrest.

The technical scheme adopted by the application for solving the technical problem is as follows: a framework is fixed in the backrest, at least two guide sleeves at the upper end of the framework are arranged on the guide sleeves, insertion holes are formed in the guide sleeves, a headrest at the upper side of the backrest is fixed on the lower side of the headrest, the number of fixing rods is the same as that of the guide sleeves, and the fixing rods are respectively inserted into one insertion hole;

the one end that the headrest was kept away from to the uide bushing is fixed with first clamp splice, one side of first clamp splice all is provided with the second clamp splice, the one end that the dead lever passed the patchhole is located between first clamp splice and the second clamp splice, it is connected with the rotary rod to rotate on the skeleton, threaded connection has the removal cover on the rotary rod, the second clamp splice all with remove cover fixed connection, it is used for driving the second clamp splice and is close to or keeps away from first clamp splice to remove the cover to let first clamp splice and second clamp splice centre gripping or relax the dead lever.

When first clamp splice and second clamp splice separation, the headrest can slide to arbitrary height at will to reach the effect of infinitely variable control headrest height, and through rotatory rotary rod, utilize threaded connection, let and remove the cover and drive the second clamp splice and be close to first clamp splice, thereby let first clamp splice and second clamp splice centre gripping and fixed dead lever, in order to reach at the completion of headrest altitude mixture control back, with its fixed effect.

Further, at least one end of the rotating rod is connected with a handle, and the handle is used for rotating the rotating rod.

Furthermore, one side of the backrest is provided with a containing groove for containing a handle.

Furthermore, the one end that rotary rod and handle are connected is provided with non-circular linkage hole, handle one side is fixed with the gangbar that corresponds with the linkage hole for let the handle slide on the axis direction with the rotary rod, and let in the handle sliding range get the optional position, all can drive the rotary rod rotatory.

Furthermore, a clamping block is fixed at one end, far away from the handle, of the linkage rod, the clamping block is connected with the linkage hole in a sliding mode, and a baffle used for blocking the clamping block is fixed at one end, close to the handle, of the linkage hole and used for preventing the linkage rod from being separated from the linkage hole.

Furthermore, elastic blocks are fixed on one sides, close to the fixing rod, of the first clamping block and the second clamping block, and the elastic blocks are made of elastic materials and used for increasing the friction force of the first clamping block and the second clamping block on the fixing rod.

Furthermore, the first clamping block and the second clamping block are respectively provided with a first clamping hole and a second clamping hole close to the fixed rod, and the first clamping hole and the second clamping hole are used for increasing the attaching area of the first clamping block and the second clamping block to the fixed rod.

Further, a friction block is fixed in the insertion hole, and the friction block is made of an elastic material and used for supporting the headrest when the fixing rod is not fixed.

The beneficial effect of this application is: the application provides a pair of uide bushing for car headrest, through being close to or keeping away from between first clamp splice of control and the second clamp splice, in order to reach the effect that first clamp splice and second clamp splice centre gripping are fixed or loosen the dead lever, the dead lever is loosened the back by first clamp splice and second clamp splice, just can adjust the headrest to arbitrary height, then fix the headrest with first clamp splice and second clamp splice centre gripping again, just can fix the headrest at arbitrary height, reach the effect of electrodeless regulation headrest position.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary 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 an overall schematic view of a guide bush for an automotive headrest in the present application;

FIG. 2 is a schematic partial cross-sectional view of the backrest of FIG. 1;

FIG. 3 is an exploded view of the skeleton of FIG. 2;

FIG. 4 is an exploded view of the fastener assembly of FIG. 3;

wherein, in the figures, the respective reference numerals:

1. a backrest; 11. accommodating grooves; 12. a clamping groove;

2. a framework; 21. a vertical rod; 22. a cross bar; 23. a through hole;

3. a guide sleeve; 31. looping; 32. an insertion hole; 33. a first clamping block; 331. a first clamping hole; 34. a second clamp block; 341. a second clamping hole; 35. an elastic block;

4. a headrest; 41. fixing the rod;

5. a fastening assembly; 51. rotating the rod; 511. a linkage hole; 512. a card slot; 513. a baffle plate; 514. a thread; 52. moving the sleeve; 53. a handle; 531. a linkage rod; 532. and (7) clamping blocks.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, the present application provides a guide sleeve for a headrest of an automobile, which comprises a backrest 1, a frame 2 located in the backrest 1, at least two guide sleeves 3 located at the upper end of the frame 2, a headrest 4 located at the upper side of the backrest 1, and a fastening assembly 5 arranged on the guide sleeves 3.

The framework 2 comprises vertical rods 21 respectively positioned on two sides inside the backrest 1, a cross rod 22 is fixed between one ends, close to the headrest 4, of the vertical rods 21, through holes 23 are formed in one sides, close to the headrest 4, of the vertical rods 21, and the through holes 23 are positioned on one sides, far away from the headrest 4, of the cross rods 22.

In this embodiment, two guide sleeves 3 are provided, each guide sleeve 3 includes a sleeve opening 31 located at one end close to the headrest 4, an insertion hole 32 is provided in the middle of each sleeve opening 31, a first clamping block 33 and a second clamping block 34 are provided on each side of each sleeve opening 31 far from the headrest 4, each first clamping block 33 is fixedly connected with the corresponding sleeve opening 31, a first clamping hole 331 and a second clamping hole 341 are provided on each side of each first clamping block 33 opposite to each second clamping block 34, when the first clamping blocks 33 and the second clamping blocks 34 are attached to each other, the first clamping holes 331 and the second clamping holes 341 are combined into a through hole, the through hole is communicated with the insertion hole 32, elastic blocks 35 are fixed on inner walls of the insertion hole 32, the first clamping holes 331 and the second clamping holes 341, the elastic blocks 35 are made of an elastic material, and in this embodiment, the elastic blocks 35 are made of rubber.

A fixing rod 41 is fixed to the lower side of the headrest 4 at the same position as the guide housing 3, and one end of the fixing rod 41 passes through the insertion hole 32 and extends between the first clamping hole 331 and the second clamping hole 341.

The two sides of the backrest 1 are provided with accommodating grooves 11 with the same positions as the through holes 23, the inside of the backrest 1 is provided with a clamping groove 12, and the first clamping block 33 and the second clamping block 34 are both positioned in the clamping groove 12.

The fastening assembly 5 includes a rotating rod 51 positioned between the vertical rods 21, a moving sleeve 52 sleeved on the rotating rod 51, and handles 53 positioned at both ends of the rotating rod 51.

Two ends of the rotary rod 51 respectively penetrate through the through hole 23 and penetrate into the accommodating groove 11, two ends of the rotary rod 51 are respectively provided with a linkage hole 511, the side wall of the linkage hole 511 is provided with at least one clamping groove 512, in the embodiment, the side wall of the linkage hole 511 is provided with two clamping grooves 512, two ends of the rotary rod 51 are respectively fixed with a baffle 513, threads 514 are arranged in the middle of the outer wall of the rotary rod 51, and the rotary rod 51 is rotatably connected with the vertical rod 21.

The moving sleeve 52 is screwed with the screw threads 514, and the second clamping blocks 34 are fixedly connected with the moving sleeve 52.

The handle 53 is located in the accommodating groove 11, a linkage rod 531 is fixed on one side of the handle 53, one end of the linkage rod 531 penetrates through the baffle 513 and extends into the linkage hole 511, a fixture block 532 which is located at the same position as the clamping groove 512 is fixed on the side wall of one end of the linkage rod 531, which is far away from the handle 53, and the fixture block 532 is located in the clamping groove 512.

In the present embodiment, when the headrest 4 is mounted, the fixing rod 41 is inserted through the insertion hole 32 and extends between the first block 33 and the second block 34. Through the elastic block 35 in the patchhole 32, produce frictional force to the laminating of dead lever 41, after dead lever 41 inserted between first clamp splice 33 and second clamp splice 34, the user unclamped headrest 4, and the position of headrest 4 is fixed to the frictional force between the elastic block 35 in the patchhole 32 and the dead lever 41, avoids the user to unclamp headrest 4 after, and headrest 4 relies on self gravity landing, and whether convenient to use person observes or feels headrest 4 positions suitable. Because the elastic block 35 in the insertion hole 32 is only used for fixing the position of the headrest 4, the friction force is small, a user can adjust the position of the headrest 4 at any time, the effect of conveniently adjusting the position of the headrest 4 is achieved, meanwhile, the position of the headrest 4 can be randomly adjusted, and the problem that the existing headrest 4 can only be adjusted to a fixed position is solved.

After the position of the headrest 4 is determined, the user pulls the handle 53 on one side out of the receiving slot 11, and blocks the latch 532 through the blocking plate 513, so that the link rod 531 is prevented from being pulled out of the link hole 511. When the handle 53 is pulled out, the handle 53 is rotated, and the fixture block 532 is positioned in the clamping groove 512, so that the linkage rod 531 is allowed to slide in the axial direction of the linkage hole 511, bile restricts the relative rotation of the linkage rod 531 and the linkage hole 511 around the axis, and the handle 53 drives the rotating rod 51 to rotate through the linkage rod 531. Since the second clamping block 34 is located in the clamping slot 12, the clamping slot 12 allows the second clamping block 34 to move in a direction toward or away from the first clamping block 33, but restricts the second clamping block 34 from rotating about the rotating rod 51, and the second clamping block 34 is fixedly connected to the moving sleeve 52, so that the second clamping block 34 also restricts the moving sleeve 52 from rotating about the rotating rod 51. Therefore, when the rotating rod 51 rotates, the rotating rod 51 and the moving sleeve 52 rotate relatively, and the rotating rod 51 rotates through the threaded connection between the threads 514 and the rotating rod 51, the moving sleeve 52 is driven to move, and the moving sleeve 52 drives the second clamping block 34 to be close to the first clamping block 33, so that the second clamping block 34 and the first clamping block 33 respectively pass through the second clamping hole 341 and the first clamping hole 331 to clamp the fixing rod 41. The handle 53 is continuously screwed to drive the second clamping block 34 and the first clamping block 33 to clamp and fix the fixing rod 41, so that the elastic blocks 35 in the second clamping hole 341 and the first clamping hole 331 provide larger friction force for the fixing rod 41, and the headrest 4 is difficult to move in the subsequent use process, thereby achieving the effect of fixing the headrest 4.

After the headrest 4 is fixed, the handle 53 is pushed back into the accommodating groove 11, so that the situation that a hard object is protruded on the backrest 1 to cause accidents and the like is avoided, and the handle 53 causes injuries to passengers.

If the position of the headrest 4 needs to be adjusted again, the handle 53 is taken out, the handle 53 is rotated reversely to separate the second clamping block 34 from the first clamping block 33, the fixing rod 41 is loosened to adjust the position of the headrest 4, after the position of the headrest 4 is adjusted, the handle 53 is rotated to drive the second clamping block 34 and the first clamping block 33 to clamp the fixing rod 41 again, and finally the handle 53 is pushed back, so that the effect of adjusting the position of the headrest 4 at any time is achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 utility model provides a uide bushing for automotive headrest, includes back (1), back (1) internal fixation has skeleton (2), two at least uide bushing (3) of skeleton (2) upper end, uide bushing (3) all are provided with patchhole (32), headrest (4) of back (1) upside, headrest (4) downside is fixed with dead lever (41) the same with uide bushing (3) quantity, in one patchhole (32) was inserted respectively in dead lever (41), its characterized in that:

the one end that headrest (4) were kept away from in uide bushing (3) is fixed with first clamp splice (33), one side of first clamp splice (33) all is provided with second clamp splice (34), the one end that patchhole (32) were passed in dead lever (41) is located between first clamp splice (33) and second clamp splice (34), it is connected with rotary rod (51) to rotate on skeleton (2), threaded connection has removal cover (52) on rotary rod (51), second clamp splice (34) all with remove cover (52) fixed connection, it is used for driving second clamp splice (34) and is close to or keep away from first clamp splice (33) to let first clamp splice (33) and second clamp splice (34) centre gripping or relax dead lever (41).

2. The guide bush for the headrest of claim 1, wherein: at least one end of the rotating rod (51) is connected with a handle (53), and the handle (53) is used for rotating the rotating rod (51).

3. The guide bush for the headrest of claim 2, wherein: one side of the backrest (1) is provided with an accommodating groove (11) for accommodating the handle (53).

4. The guide bush for an automotive headrest according to claim 2, characterized in that: one end that rotary rod (51) and handle (53) are connected is provided with non-circular linkage hole (511), handle (53) one side is fixed with linkage rod (531) that correspond with linkage hole (511) for let handle (53) slide on the axis direction with rotary rod (51), and let handle (53) sliding range in get the optional position, the homoenergetic drives rotary rod (51) rotatory.

5. The guide bush for an automotive headrest according to claim 4, characterized in that: a clamping block (532) is fixed at one end, far away from the handle (53), of the linkage rod (531), the clamping block (532) is connected with the linkage hole (511) in a sliding mode, and a baffle (513) used for blocking the clamping block (532) is fixed at one end, close to the handle (53), of the linkage hole (511) and used for preventing the linkage rod (531) from being separated from the linkage hole (511).

6. The guide bush for the headrest of claim 1, wherein: elastic blocks (35) are fixed on one sides, close to the fixing rod (41), of the first clamping block (33) and the second clamping block (34), the elastic blocks (35) are made of elastic materials and used for increasing friction force of the first clamping block (33) and the second clamping block (34) to the fixing rod (41).

7. The guide sleeve for the headrest of the automobile according to claim 1, wherein: the first clamping block (33) and the second clamping block (34) are respectively provided with a first clamping hole (331) and a second clamping hole (341) close to the fixing rod (41) and used for increasing the attaching area of the first clamping block (33) and the second clamping block (34) to the fixing rod (41).

8. The guide bush for the headrest of claim 1, wherein: a friction block made of an elastic material for supporting the headrest (4) when the fixing lever (41) is not fixed is fixed in the insertion hole (32).