CN216942811U

CN216942811U - Guide sleeve for headrest of rear chair of automobile

Info

Publication number: CN216942811U
Application number: CN202220764793.4U
Authority: CN
Inventors: 张建军
Original assignee: Dalian Xingtong Auto Parts Co ltd
Current assignee: Dalian Xingtong Auto Parts Co ltd
Priority date: 2022-04-03
Filing date: 2022-04-03
Publication date: 2022-07-12
Anticipated expiration: 2032-04-03

Abstract

The utility model provides an automobile rear seat headrest guide sleeve, which belongs to the technical field of automobile seat accessories and comprises a guide sleeve, wherein a support sleeve is fixed at the top of the guide sleeve, jacks are formed in the guide sleeve and the support sleeve, annular grooves are formed in the guide sleeve and the support sleeve, insertion pipes are movably inserted in the annular grooves, inner outlet grooves and contraction grooves are formed in the bottom of the annular grooves, epitaxial grooves are formed in the left side and the right side of the circumferential surface of the guide sleeve, the two epitaxial grooves are communicated with the annular grooves, two lower pressing plates are fixed on the insertion pipes, the two lower pressing plates respectively penetrate through the epitaxial grooves and extend outwards, return springs are connected with the two lower pressing plates and the lower inner walls of the two epitaxial grooves, the whole device is reasonable in structure arrangement, ingenious conception and flexible in use, the height of an automobile rear seat headrest is convenient to adjust, the adjusted limiting and clamping effect is good, and the service life is longer, meanwhile, the whole device can be adapted to the installation of most of the existing automobile seats, and has strong adaptability.

Description

Guide sleeve for headrest of rear chair of automobile

Technical Field

The utility model belongs to the technical field of automobile seat accessories, and particularly relates to an automobile rear seat headrest guide sleeve.

Background

The automobile headrest is a driving comfort configuration article and a safety protection article, when a rear-end collision occurs to a vehicle, a human body falls backwards due to inertia, at the moment, pressure of acceleration or deceleration of the vehicle is concentrated on the fragile neck and head of the human body, and the headrest plays a role in buffering the pressure, so that the head of the human body is protected. The headrest not only enhances the driving safety, but also has decoration and a seat, when flood occurs, the window is difficult to open due to water pressure tightness, the headrest can play a role in breaking glass, and the headrest of the automobile seat plays an important role in protecting passengers.

The current seat headrest guide pin bushing is plastic construction mostly, and the buckle of gomphosis between its inside setting and the seat headrest inserted bar is easy wearing and tearing after long-time easy, leads to the spacing firm inadequately to the seat headrest inserted bar, influences its life, consequently, designs a car back seat headrest guide pin bushing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a guide sleeve for a headrest of a rear chair of an automobile, and aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a chair headrest guide pin bushing behind car is including leading the sleeve, the top of leading the sleeve is fixed with supports the cover, lead the sleeve and support and overlap and seted up the jack, lead the sleeve and support and set up the annular in the cover, the annular internalization is pegged graft and is had the intubate, go out groove and shrink groove in the bottom of annular has been seted up, lead the peripheral surface left and right sides of sleeve and all seted up epitaxial groove, and two epitaxial grooves all communicate with the annular, be fixed with two holding down plates on the intubate, and two holding down plates run through epitaxial groove respectively and outwards extend, two the holding down plate all is connected with reset spring with the lower inner wall in two epitaxial grooves, the bottom of intubate is connected with the friction rubber ring, and the friction rubber ring matches with interior groove and shrink groove.

Preferably, a plurality of clamping and embedding bulges distributed at equal intervals are fixed in the friction rubber ring, and an arc chamfer is arranged between the inner outlet groove and the contraction groove.

Preferably, two be connected with down the clamping ring between the holding down plate, and the surperficial cover of clamping ring is equipped with anti-skidding cover down, the surface of supporting the cover is located to the clamping ring cover down.

Preferably, a connecting piece is fixed between the guide sleeve and the support sleeve, and an anti-skid layer is arranged on the surface of the connecting piece.

Preferably, the bottom of the guide sleeve is provided with a sub-groove, and a chamfer is arranged in the sub-groove.

Preferably, the friction rubber ring penetrates through the inner outlet groove and extends into the insertion hole.

Compared with the prior art, the utility model has the beneficial effects that:

whole device structure sets up rationally, thinks about ingeniously, uses in a flexible way, and it is convenient to the high altitude mixture control of seat headrest behind the car, and spacing centre gripping after the regulation is effectual, has longer life, but the installation of the present most car seats of whole device adaptation has stronger suitability simultaneously.

Drawings

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

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a second perspective view of FIG. 2 in accordance with the present invention;

fig. 4 is a cross-sectional view of the present invention.

In the figure: 1. a guide sleeve; 2. a connecting member; 3. a support sleeve; 4. a jack; 5. dividing the groove; 6. a ring groove; 7. discharging from the groove; 8. a contraction groove; 9. inserting a tube; 10. a friction rubber ring; 11. a lower pressing plate; 12. a return spring; 13. a lower pressure ring; 14. and (5) extending the groove.

Detailed Description

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.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a chair headrest guide pin bushing behind car is including leading sleeve 1, the top of leading sleeve 1 is fixed with supports cover 3, lead sleeve 1 and support and overlap 3 in and seted up jack 4, guide sleeve 1 and support cover 3 in have seted up annular 6, annular 6 internalization is pegged graft and is had intubate 9, go out groove 7 and shrink groove 8 in the bottom of annular 6 has been seted up, lead sleeve 1's the circumferential surface left and right sides all seted up epitaxial groove 14, and two epitaxial grooves 14 all communicate with annular 6, be fixed with two holding down plates 11 on the intubate 9, and two holding down plates 11 run through epitaxial groove 14 respectively and outwards extend, two holding down plates 11 all are connected with reset spring 12 with the lower inner wall of two epitaxial grooves 14, the bottom of intubate 9 is connected with friction rubber ring 10, and friction rubber ring 10 and interior play groove 7 and shrink groove 8 phase-match.

In the specific embodiment of the utility model, the guide sleeve barrel 1 and the support sleeve 3 are installed on the top of the rear seat of the automobile, then the seat headrest is inserted into the jack 4 in the guide sleeve barrel 1 and the support sleeve 3 through the guide rod, the clamping groove on the guide rod and the clamping structure in the guide sleeve barrel 1 are mutually embedded, so as to realize the height adjustment of the whole seat headrest, the specific operation can be realized by pressing two lower pressing plates 11 to drive the whole insertion tube 9 to move downwards in the annular groove 6 in the guide sleeve barrel 1, so that the friction rubber ring 10 fixed at the bottom of the insertion tube 9 is contracted towards the contraction groove 8, the effect of the friction rubber ring 10 on the surface of the guide rod is lost, then the seat headrest connected on the guide rod is subjected to the height adjustment, after the adjustment is completed, the limitation on the two lower pressing plates 11 is released, the two lower pressing plates 11 drive the whole insertion tube 9 and the friction rubber ring 10 to move upwards through the elastic action of the reset spring 12 on the lower inner wall of the extension groove 14, the friction rubber ring 10 can penetrate through the inner outlet groove 7 and expand in the guide sleeve 1 in the upward moving process, so that the limiting effect on the guide rod in the jack 4 is achieved.

Specifically, a plurality of clamping and embedding protrusions distributed at equal intervals are fixed in the friction rubber ring 10, and an arc chamfer is arranged between the inner outlet groove 7 and the contraction groove 8.

In this embodiment: the spacing draw-in groove on the protruding adaptation guide arm of inlay card of a plurality of equidistance distributions of friction rubber ring 10 internal fixation inlays each other and establishes, and the high frictional force on cooperation friction rubber ring 10 and the guide arm surface makes the life of device longer when improving the spacing effect of guide arm.

Specifically, be connected with down clamping ring 13 between two holding down plate 11, and the surface cover of holding down clamping ring 13 is equipped with anti-skidding cover, and the surface of supporting cover 3 is located to holding down clamping ring 13 cover.

In this embodiment: the lower pressing ring 13 connected between the two lower pressing plates 11 can improve the convenience degree of the control of the whole device, and the anti-skid sleeve sleeved on the lower pressing ring 13 can improve the operation comfort level.

Specifically, a connecting piece 2 is fixed between the guide sleeve barrel 1 and the support sleeve 3, and an anti-skid layer is arranged on the surface of the connecting piece 2.

In this embodiment: the connecting piece 2 with the anti-slip layer fixed between the guide sleeve barrel 1 and the supporting sleeve 3 can facilitate the connection of the device and the inside of the seat and improve the connection tightness.

Specifically, the bottom of the guide sleeve 1 is provided with a sub-groove 5, and a chamfer is arranged in the sub-groove 5.

In this embodiment: the sub-groove 5 formed in the bottom of the guide sleeve 1 penetrates through the whole guide sleeve 1 and is inserted into a rear seat of an automobile together with the whole device, and the limiting effect on the device is achieved.

Specifically, the friction rubber ring 10 extends through the inner groove 7 and into the insertion hole 4.

In this embodiment: the friction rubber ring 10 is arranged to penetrate through the inner outlet groove 7 and extend into the guide sleeve 1, so that the guide rod inserted into the jack 4 can be effectively limited.

The working principle and the using process of the utility model are as follows: when the utility model is used, the whole guide sleeve 1 and the support sleeve 3 are arranged at the top of the rear seat of the automobile, then the seat headrest is inserted into the jack 4 in the guide sleeve 1 and the support sleeve 3 through the guide rod, the clamping groove on the guide rod and the clamping structure in the guide sleeve 1 are mutually embedded, thereby realizing the height adjustment of the whole seat headrest, the specific operation can be realized by pressing two lower pressing plates 11 to drive the whole insertion tube 9 to move downwards in the annular groove 6 in the guide sleeve 1, so that the friction rubber ring 10 fixed at the bottom of the insertion tube 9 is contracted towards the contraction groove 8, the surface limiting effect of the friction rubber ring 10 on the guide rod is lost, then the height adjustment of the seat headrest connected on the guide rod is carried out, after the adjustment is finished, the limitation of the two lower pressing plates 11 is released, the two lower pressing plates 11 drive the whole insertion tube 9 and the friction rubber ring 10 to move upwards through the elastic action of the reset spring 12 on the lower inner wall of the extension groove 14, the friction rubber ring 10 can penetrate through the inner outlet groove 7 and expand in the guide sleeve 1 in the upward moving process, so that the limiting effect on the guide rod in the jack 4 is achieved.

The plurality of clamping and embedding bulges which are distributed at equal intervals and fixed in the friction rubber ring 10 can be matched with the limiting clamping grooves on the guide rod to be mutually embedded, the high friction force between the friction rubber ring 10 and the surface of the guide rod is matched, the limiting effect on the guide rod is improved, the service life of the device is longer, the lower pressing ring 13 connected between the two lower pressing plates 11 can improve the convenience degree of the control of the whole device, the anti-skid sleeve sleeved on the lower pressing ring 13 can improve the operation comfort degree, the connecting piece 2 with the anti-slip layer fixed between the guide sleeve barrel 1 and the support sleeve 3 can facilitate the connection of the device with the inside of the seat, the connection tightness is improved, the sub-groove 5 arranged at the bottom of the guide sleeve 1 penetrates through the whole guide sleeve 1, and insert on the car back seat with whole device to realize the spacing effect to the device, set up the setting of frictional rubber ring 10 and run through interior play groove 7 and extend in the guide sleeve 1 and can effectively carry out spacing to the guide arm of inserting in the jack 4.

Finally, it should be noted that: 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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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 chair headrest guide pin bushing behind car which characterized in that: including leading sleeve (1), the top of leading sleeve (1) is fixed with supports cover (3), lead sleeve (1) and support and set up jack (4) in (3), lead sleeve (1) and support and set up annular (6) in (3), annular (6) internalization is pegged graft and is had intubate (9), go out groove (7) and shrink groove (8) in having seted up in the bottom of annular (6), lead the circumference surface left and right sides of sleeve (1) and all seted up epitaxial groove (14), and two epitaxial grooves (14) all communicate with annular (6), be fixed with two holding down plates (11) on intubate (9), and two holding down plates (11) run through epitaxial groove (14) respectively and outwards extend, two holding down plates (11) all are connected with reset spring (12) with the lower inner wall of two epitaxial grooves (14), the bottom of intubate (9) is connected with friction rubber ring (10), and the friction rubber ring (10) is matched with the inner outlet groove (7) and the contraction groove (8).

2. The guide sleeve for the headrest of the rear seat of the automobile according to claim 1, wherein: a plurality of clamping and embedding protrusions distributed at equal intervals are fixed in the friction rubber ring (10), and an arc chamfer is arranged between the inner outlet groove (7) and the contraction groove (8).

3. The guide sleeve for the headrest of the rear seat of the automobile according to claim 2, wherein: two be connected with down clamping ring (13) between holding down plate (11), and the surface cover of holding down clamping ring (13) is equipped with anti-skidding cover, the surface of supporting cover (3) is located to clamping ring (13) cover down.

4. The guide sleeve for the headrest of the rear seat of the automobile according to claim 3, wherein: a connecting piece (2) is fixed between the guide sleeve (1) and the support sleeve (3), and an anti-skid layer is arranged on the surface of the connecting piece (2).

5. The guide sleeve for the headrest of the rear seat of the automobile according to claim 4, wherein: the bottom of the guide sleeve (1) is provided with a sub-groove (5), and a chamfer is arranged in the sub-groove (5).

6. The guide sleeve for the headrest of the rear seat of the automobile according to claim 5, wherein: the friction rubber ring (10) penetrates through the inner outlet groove (7) and extends into the insertion hole (4).