CN219947978U - Headrest mounting assembly, seat and vehicle - Google Patents

Abstract

The utility model provides a headrest mounting assembly, a seat and a vehicle, wherein the headrest mounting assembly comprises: a headrest guide rod; the headrest guide sleeve can be inserted into the headrest guide sleeve along the first direction, the inner peripheral wall of the headrest guide sleeve is provided with a positioning protrusion protruding towards one side of the headrest guide rod, and the positioning protrusion can be abutted against the headrest guide rod to be matched so as to prevent the headrest guide rod from shaking relative to the headrest guide sleeve. From this, through setting up the location arch at the inner peripheral wall of headrest guide pin bushing for the location arch is pressed with the headrest guide arm and is supported the cooperation, in order to prevent that the headrest guide arm from rocking for the headrest guide pin bushing, thereby prevent that headrest installation component from producing abnormal sound, improve user's use experience sense, and can prevent that the headrest from taking place to rock, guarantee the headrest to user's head and neck's protective effect, simultaneously, the headrest guide pin bushing forms local interference fit through between location arch and the headrest guide arm, can be convenient for drive headrest guide arm slip.

Description

Headrest mounting assembly, seat and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a headrest installation assembly, a seat and a vehicle.

Background

With the development of automobile technology, the design of seats is more focused on detailed treatments to improve the riding comfort of users.

In the related art, a clearance fit is formed between the headrest guide rod and the headrest guide sleeve, so that the headrest guide rod is easy to shake relative to the headrest guide sleeve, and further abnormal sound is easy to generate in the headrest adjusting unit, and the use experience of a user is affected. Meanwhile, the headrest guide rod can drive the headrest to shake, so that the headrest has poor supporting effect on the head of a user.

Disclosure of Invention

In view of the above, the present utility model is directed to a headrest mounting assembly for preventing a headrest guide from shaking.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a headrest mounting assembly comprising: a headrest guide rod; the headrest guide sleeve can be inserted into the headrest guide sleeve along a first direction, a positioning protrusion protruding towards one side of the headrest guide sleeve is arranged on the inner peripheral wall of the headrest guide sleeve, and the positioning protrusion can be matched with the headrest guide sleeve in a propping mode so as to prevent the headrest guide sleeve from shaking relative to the headrest guide sleeve.

According to some embodiments of the utility model, the headrest guide sleeve comprises: a head; the head is arranged at one end of the rod, the headrest guide rod is suitable for being sequentially arranged on the head and the rod in a penetrating mode along the first direction, and the positioning protrusion is arranged on the rod.

According to some embodiments of the utility model, the rod portion is provided with a hollowed portion, the hollowed portion is arranged in a penetrating manner along the wall thickness direction of the rod portion, the hollowed portion is provided with a connecting rib, and the positioning protrusion is arranged on the inner side of the connecting rib and is suitable for driving the connecting rib to elastically deform when the positioning protrusion abuts against the headrest guide rod.

According to some embodiments of the utility model, the positioning protrusion comprises: the plurality of first positioning bulges are sequentially arranged at intervals around the headrest guide rod in the circumferential direction of the rod part; the second positioning protrusions are arranged around the headrest guide rod in the circumferential direction of the rod part at intervals in sequence, and the first positioning protrusions and the second positioning protrusions are arranged at intervals in the first direction.

According to some embodiments of the utility model, the head is provided with a locking member, the headrest guide rod is provided with a plurality of locking portions sequentially arranged along the first direction, and the locking member can be in locking fit with one of the plurality of locking portions.

According to some embodiments of the utility model, the headrest guide rod and the headrest guide sleeve are two groups, and the headrest guide rod in at least one group is provided with the locking part, and the headrest guide sleeve is provided with the locking piece.

According to some embodiments of the utility model, the headrest mounting assembly further comprises a conduit mounted to the seat back, and the headrest guide is matingly insertable with the conduit in the first direction.

According to some embodiments of the utility model, the guide tube is provided with a clamping groove, and the headrest guide sleeve is provided with a clamping part, and the clamping part is suitable for being matched with the clamping groove in a clamping way when the headrest guide sleeve is inserted into the guide tube.

Compared with the prior art, the headrest mounting assembly has the following advantages:

through setting up the location arch at the inner peripheral wall of headrest guide pin bushing for the location arch is pressed with the headrest guide arm and is supported the cooperation, in order to prevent that the headrest guide arm from rocking for the headrest guide pin bushing, thereby prevent that headrest installation component from producing abnormal sound, improve user's use experience sense, and can prevent that the headrest from taking place to rock, guarantee the headrest to user's head and neck's protective effect, simultaneously, headrest guide pin bushing forms local interference fit through between location arch and the headrest guide arm, can be convenient for drive headrest guide arm and slide, and headrest installation component simple structure, the processing assembly of being convenient for.

Another object of the utility model is to propose a seat.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a seat comprises the headrest mounting assembly.

The seat has the same advantages as the headrest mounting assembly described above over the prior art and will not be described in detail herein.

Another object of the utility model is to propose a vehicle.

A vehicle comprises the seat.

The vehicle has the same advantages as the seat described above over the prior art and will not be described in detail here.

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 utility model. In the drawings:

FIG. 1 is a schematic view of an assembly of a headrest, a headrest mounting assembly, and a back frame according to an embodiment of the present utility model;

fig. 2 is an assembly schematic diagram of a headrest guide and a headrest guide according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a schematic structural view of a locking guide sleeve according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram II of a locking guide sleeve according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a locking guide sleeve in accordance with an embodiment of the present utility model mated with a headrest guide rod;

fig. 7 is a schematic diagram illustrating the cooperation between the free guide sleeve and the headrest guide rod according to the embodiment of the utility model.

Reference numerals illustrate:

headrest mounting assembly 100, headrest guide 10, locking portion 11,

Headrest guide 20, lock guide 201, free guide 202, pressing projection 2021,

Positioning projection 21, first positioning projection 211, second positioning projection 212,

Head 22, reset piece 221, driving block 222, convex structure 223, boss structure 224,

The rod part 23, the hollow part 231, the connecting rib 2311, the first hollow part 2312, the second hollow part 2313, the clamping part 24,

A conduit 30,

A back frame 200 and a headrest 300.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1, 5 and 6, according to the headrest mounting assembly 100 of the present utility model, the headrest guide 10 and the headrest guide 20, the headrest guide 10 may be inserted into the headrest guide 20 in a first direction, the inner circumferential wall of the headrest guide 20 is provided with a positioning protrusion 21 protruding toward one side of the headrest guide 10, and the positioning protrusion 21 may be engaged against the headrest guide 10 to prevent the headrest guide 10 from shaking with respect to the headrest guide 20.

The "first direction" refers to the vertical direction, and specific directional illustrations may be shown with reference to fig. 1 and 2, and the "inner peripheral wall" refers to the wall surface of the headrest guide 20 that is provided adjacent to the headrest guide 10.

Specifically, the headrest guide 10 is used to mount the headrest 300, the headrest 300 is used to support the head and neck of the user, and the headrest 300 may be composed of foam so that the headrest 300 has an elastic energy absorbing effect, thereby providing protection to the head and neck of the user.

The headrest guide rod 10 is in plug-in fit with the headrest guide sleeve 20, and the headrest guide rod 10 can slide relatively with respect to the headrest guide sleeve 20, so as to adjust the height of the headrest 300, and improve the flexibility of the headrest installation assembly 100.

Further, the positioning protrusion 21 protrudes from the headrest guide 20 toward the headrest guide 10, and the positioning protrusion 21 is press-fitted with the headrest guide 10 to prevent the headrest guide 10 from shaking relative to the headrest guide 20, thereby ensuring the protection effect of the headrest 300 on the head and neck of the user, and preventing abnormal sound from being generated due to shaking of the headrest guide 10 relative to the headrest guide 20, and improving the user experience.

In the related art, the mode of solving the abnormal sound generated by the headrest adjusting unit is generally to adjust the center distance between the headrest guide pipe and the headrest guide rod, so that the center distance is greatly deteriorated in the adjusting process, the requirement on the consistency of the control adjusting process is high, the production process is difficult to achieve, the adjusted headrest adjusting unit is changed from integral clearance fit to interference fit, and the headrest is difficult to adjust up and down when the adjusting amount is too large.

According to the headrest installation assembly 100, the positioning protrusions 21 are arranged to improve the matching mode of the headrest guide rod 10 and the headrest guide sleeve 20, so that the headrest guide rod 10 is prevented from shaking relative to the headrest guide sleeve 20, abnormal sound caused by shaking of the headrest guide rod 10 relative to the headrest guide sleeve 20 is prevented, the use experience of a user is improved, the protection effect of the headrest 300 on the neck and the head of the user can be ensured, and meanwhile, the headrest installation assembly 100 is simple in structure and convenient to process and assemble.

Meanwhile, the headrest guide sleeve 20 forms partial interference fit with the headrest guide rod 10 through the positioning protrusion 21, so that the headrest guide rod 10 can be prevented from shaking relative to the headrest guide sleeve 20, the sliding effect of the headrest guide rod 10 relative to the headrest guide sleeve 20 can be ensured, and the headrest guide rod 10 can be conveniently driven to slide relative to the headrest guide sleeve 20.

According to the headrest installation assembly 100, the positioning protrusion 21 is arranged on the inner peripheral wall of the headrest guide sleeve 20, so that the positioning protrusion 21 is in press fit with the headrest guide rod 10, the headrest guide rod 10 is prevented from shaking relative to the headrest guide sleeve 20, abnormal sound is prevented from being generated by the headrest installation assembly 100, the use experience of a user is improved, the headrest 300 is prevented from shaking, the protection effect of the headrest 300 on the head and the neck of the user is ensured, meanwhile, the headrest guide sleeve 20 forms partial interference fit with the headrest guide rod 10 through the positioning protrusion 21, the headrest guide rod 10 can be conveniently driven to slide, and the headrest installation assembly 100 is simple in structure and convenient to process and assemble.

Referring to fig. 2 and 3, in some embodiments of the present utility model, a headrest guide 20 includes: the head 22 and the rod 23, the head 22 is arranged at one end of the rod 23, and the headrest guide 10 is adapted to sequentially penetrate the head 22 and the rod 23 along the first direction, and the positioning boss 21 is arranged at the rod 23.

Specifically, the head 22 is disposed at one end of the rod 23 near the headrest 300, hole structures penetrating in the first direction are disposed on the head 22 and the rod 23, and the hole structures on the head 22 are communicated with the hole structures on the rod 23, and the headrest guide 10 can be inserted into the headrest guide 20 through the hole structures disposed in communication, and when the headrest 300 moves to the lowest point, the head 22 is pressed against the end of the headrest 300.

With further reference to fig. 5 and 6, the positioning boss 21 is disposed on the inner wall surface of the rod portion 23, and the positioning boss 21 is press-fitted with the headrest guide rod 10 to prevent the headrest guide rod 10 from shaking relative to the headrest guide sleeve 20, and to ensure the stability of the headrest guide rod 10, and thus the stability of the headrest 300.

Referring to fig. 4 and 5, in some embodiments of the present utility model, the rod portion 23 is provided with a hollowed portion 231, the hollowed portion 231 is disposed through along the wall thickness direction of the rod portion 23, and the hollowed portion 231 is provided with a connecting rib 2311, and the positioning protrusion 21 is disposed inside the connecting rib 2311 and adapted to drive the connecting rib 2311 to elastically deform when the positioning protrusion abuts against the headrest guide rod 10.

Specifically, the hollowed-out portion 231 may be configured as a square through hole, the square through hole penetrates through a wall surface of the rod portion 23 in a radial direction of the rod portion 23, the connection rib 2311 extends along the first direction, and the connection rib 2311 is connected to two side walls of the hollowed-out portion 231 which are oppositely arranged in the first direction, and the connection rib 2311 is arranged at intervals with the remaining side walls of the hollowed-out portion 231.

Further, the positioning protrusion 21 is disposed on a side of the connection rib 2311 opposite to the headrest guide rod 10, the positioning protrusion 21 is in press fit with the headrest guide rod 10, the headrest guide rod 10 extrudes the positioning protrusion 21, and the connection rib 2311 and the rest side wall of the hollowed-out portion 231 are disposed at intervals, so that the positioning protrusion 21 is easy to drive the connection rib 2311 to elastically deform, and meanwhile the connection rib 2311 has a tendency of recovering deformation so as to drive the positioning protrusion 21 to press against the headrest guide rod 10, thereby eliminating the gap between the headrest guide rod 10 and the headrest guide sleeve 20 and preventing the headrest guide rod 10 from shaking.

In addition, the connection rib 2311 is spaced from the remaining side walls of the hollowed-out portion 231 such that a gap is formed between the connection rib 2311 and the hollowed-out portion 231, and a user can observe the abrasion degree of the positioning protrusion 21 through the gap and can replace or maintain the headrest mounting assembly 100 in time in combination with the abrasion degree.

The headrest guide 20 may be formed by injection molding of plastic, that is, the connection rib 2311, the head 22 and the rod 23 may be integrally formed by injection molding, so that the headrest guide 20 is convenient to process.

Further, an arc-shaped structure recessed towards one side of the headrest guide rod 10 is formed on a side wall surface, far away from the headrest guide rod 10, of the connecting rib 2311, the structural strength of the arc-shaped structure is high, deformation of the connecting rib 2311 can be reduced, extrusion force of the connecting rib 2311 and the positioning protrusions 21 on the headrest guide rod 10 is reduced, the headrest guide rod 10 can be driven to slide relatively conveniently, the thickness of the positioning protrusions 21 is guaranteed to be the same as the wall thickness of other positions of the connecting rib 2311, and injection molding defects are prevented.

In addition, when the positioning boss 21 is press-fitted with the headrest guide rod 10, the headrest guide rod 10 presses the positioning boss 21, the positioning boss 21 drives the connection rib 2311 to slightly elastically deform, and the connection rib 2311 has a tendency to recover deformation to drive the positioning boss 21 to press against the headrest guide rod 10, thereby eliminating the amount of clearance between the headrest guide rod 10 and the headrest guide sleeve 20 and preventing the headrest guide rod 10 from shaking.

In some embodiments of the present utility model, the positioning projection 21 includes: the plurality of first positioning projections 211 and the plurality of second positioning projections 212 are sequentially arranged at intervals around the headrest guide 10 in the circumferential direction of the lever portion 23, and the plurality of first positioning projections 211 and the plurality of second positioning projections 212 are sequentially arranged at intervals in the first direction.

Specifically, the hollowed-out portion 231 may include a plurality of first hollowed-out portions 2312 and a plurality of second hollowed-out portions 2313, the plurality of first hollowed-out portions 2312 are sequentially spaced around the headrest guide 10 in the circumferential direction of the rod portion 23, the plurality of second hollowed-out portions 2313 are sequentially spaced around the headrest guide 10 in the circumferential direction of the rod portion 23, and the plurality of first hollowed-out portions 2312 and the plurality of second hollowed-out portions 2313 are sequentially spaced around the headrest guide 10 in the first direction.

Further, each first hollow portion 2312 is provided with a first connecting rib 2311, one side of the first connecting rib 2311 opposite to the headrest guide rod 10 is provided with a positioning protrusion 21, one side of each second hollow portion 2313 opposite to the headrest guide rod 10 is provided with a second connecting rib 2311, the intervals between the plurality of first positioning protrusions 211 can be the same to ensure that the pressing force of the plurality of first positioning protrusions 211 to the headrest guide rod 10 is the same, and likewise, the intervals between the plurality of second positioning protrusions 212 can be the same to ensure that the pressing force of the plurality of second positioning protrusions 212 to the headrest guide rod 10 is the same, so that the headrest guide rod 10 is uniformly stressed, and meanwhile, the plurality of first positioning protrusions 211 and the plurality of second positioning protrusions 212 are arranged to improve the effect of preventing the headrest guide rod 10 from shaking, improve the stability of the headrest guide rod 10, and further improve the stability of the headrest guide rod 300.

Further, the first positioning protrusions 211 and the second positioning protrusions 212 are arranged at intervals in the first direction to disperse stress points of the headrest guide rod 10 in the first direction, so that stability of the headrest guide rod 10 is further improved, and the stress points of the headrest guide rod 10 are prevented from being concentrated at one end to cause poor anti-shaking effect on the headrest guide rod 10.

As shown in fig. 5, in other embodiments of the present utility model, two hollowed-out portions 231 may be provided, the two hollowed-out portions 231 are disposed at intervals in the first direction, and the two hollowed-out portions 231 are disposed opposite to each other in the radial direction of the headrest guide 20, a connection rib 2311 is disposed in each hollowed-out portion 231, and a positioning protrusion 21 is disposed on the connection rib 2311, so that the positions of the headrest guide 10 and the positioning protrusion 21 in a stop fit manner are dispersed, and the positioning protrusions 21 are disposed on two sides of the headrest guide 10, so that the pressing force applied by the headrest guide 10 is uniformly distributed, the stability of the headrest guide 10 is improved, and the structure of the headrest guide 10 can be simplified due to such arrangement, and the processing and assembly of the headrest guide 10 are facilitated.

Referring to fig. 2 and 3, in some embodiments of the present utility model, the head 22 is provided with a locking member, and the headrest guide 10 is provided with a plurality of locking portions 11 sequentially arranged in the first direction, and the locking member may be in locking engagement with one of the plurality of locking portions 11.

Specifically, the head 22 is provided with a locking member, the locking member may be configured as a steel wire, the steel wire is connected to the head 22, the locking portion 11 is disposed on the headrest guide 10, and the locking portion 11 is disposed at a distance from the headrest 300, so that the headrest 300 can be avoided from the locking portion 11, the locking portion 11 may be configured as a locking groove, the locking groove is recessed in a direction close to a central axis of the headrest guide 10 in a radial direction of the headrest guide 10, and the steel wire is engaged with one of the locking grooves, thereby realizing locking of the headrest guide 10 and preventing the headrest guide 10 from shaking in a first direction.

Further, by driving the wire to come out of the locking groove to release the locked state of the headrest guide 10, and after the headrest guide 10 is released from the locking, the headrest guide 10 can be driven to move in the first direction to selectively adjust the height of the headrest 300, and when the height of the headrest guide 10 is adjusted to meet the user's demand, the wire is in locking engagement with one of the plurality of locking grooves to fix the headrest guide 10 to a proper height.

Wherein, a plurality of locking grooves are arranged at intervals along a first direction in proper order, can set for headrest guide 10 height-adjusting's gear according to the locking groove that a plurality of intervals set up, along the direction that headrest 300 extends to headrest guide 10, every locking groove can be constructed for a gear of headrest guide 10 height-adjusting, for example: the first locking groove provided near the headrest 300 may be set to 1 gear of the headrest guide rod 10, and the remaining plurality of locking grooves sequentially arranged may be respectively set to 2 gears, 3 gears, etc., so that gear adjustment of the height of the headrest guide rod 10 may be achieved.

As shown in fig. 3, in a further embodiment of the present utility model, the driving block 222 is provided on the head 22, the driving block 222 may be configured as a button, and a groove structure is provided on the driving block 222, an extending direction of the groove structure is the same as a moving direction of the driving block 222, the driving block 222 slides in the groove structure, and the groove structure may limit the driving block 222 in a direction perpendicular to the sliding direction of the driving block 222, so as to prevent the driving block 222 from sliding, and ensure stability of the driving block 222.

The driving block 222 may slide on the head 22 in the radial direction, one end of the driving block 222 is provided with a reset member 221, the reset member 221 may be configured as a spring, the other end of the reset member 221 is in locking engagement with the head 22, the driving block 222 may compress the reset member 221, a locking member may be connected to one of the reset member 221 or the driving block 222, when the driving member slides in a direction close to the reset member 221, the driving member may compress the reset member 221 while the locking member is disengaged from the locking portion 11, so as to unlock the headrest guide rod 10, when the adjustment of the headrest guide rod 10 is completed, the driving block 222 is released, the reset member 221 releases energy to reset the driving member, and simultaneously may drive the locking member to be in locking engagement with the corresponding locking portion 11, so as to fix the headrest guide rod 10 with the headrest 300, and thus, the headrest guide sleeve 20 is configured as the locking guide sleeve 201, so as to realize the locking function.

Further, the end of the driving block 222 far away from the resetting piece 221 is provided with a protruding structure 223, the head 22 is provided with a boss structure 224, the boss structure 224 is arranged at the end of the groove structure, the boss structure 224 is opposite to the protruding structure 223, the protruding structure 223 can be in stop fit with the boss structure 224 to limit the movable distance of the driving block 222, and the driving piece is prevented from excessively moving to cause that the locking piece cannot be in locking fit with the locking part 11.

As shown in fig. 2, in some embodiments of the present utility model, the headrest guide 10 and the headrest guide 20 are provided in two groups, and the headrest guide 10 in at least one group is provided with a locking portion 11 and the headrest guide 20 is provided with a locking member.

Specifically, the headrest guide rods 10 are provided with two headrest guide rods 10 which are arranged at intervals in the Y-direction, and meanwhile, one ends of the two headrest guide rods 10 close to the headrest 300 in the first direction are connected so as to realize linkage of the two headrest guide rods 10, the headrest 300 can be fixedly installed at one end, far away from the backrest, of the headrest guide rod 10 in an integrated foaming mode, and the two headrest guide rods 10 can improve the assembly stability of the headrest 300.

Further, each headrest guide rod 10 is sleeved with one headrest guide sleeve 20, and the two headrest guide sleeves 20 can be configured as locking guide sleeves 201, accordingly, each headrest guide rod 10 is provided with a locking part 11 which can be matched with the locking guide sleeve 201, so as to realize double locking of the headrest guide rod 10 and improve the locking effect on the headrest guide rod 10, wherein a linkage piece can be arranged between the two locking guide sleeves 201, for example: the linkage pull rod is arranged on the two driving blocks 222, so that the two driving blocks 222 are linked, the simultaneous unlocking of the two headrest guide rods 10 is realized, and the problem that the unlocking or locking of the two headrest guide rods 10 is asynchronous is avoided.

Alternatively, one of the two headrest guide sleeves 20 may be configured as the locking guide sleeve 201, and accordingly, the locking portion 11 that is in locking engagement with the headrest guide rod 10 mounted on the locking guide sleeve 201 is provided, so that the headrest mounting assembly 100 is convenient to process, the locking portions 11 do not need to be provided on both the headrest guide rods 10, and the processing difficulty of the headrest mounting assembly 100 is reduced.

Meanwhile, as shown in fig. 7, another one of the headrest guide 20 may be configured as a free guide 202, wherein a through hole is provided in the middle of the free guide 202, the headrest guide 10 may be inserted into the through hole, pressing protrusions 2021 having a height of 0.1mm are formed on the peripheral side wall of the through hole, the pressing protrusions 2021 protrude from the peripheral side wall of the through hole in the radial direction toward the headrest guide 10 to be in interference fit with the headrest guide 10, and the deformation amount of the pressing protrusions 2021 is small, so that the effect of the interference fit of the pressing protrusions 2021 with the headrest guide 10 may be ensured, the risk of shaking of the headrest guide 10 due to the small force required for driving the headrest 300 may be prevented, and thus the stability of the headrest 300 may be ensured.

It should be noted that, when the headrest guide 20 is configured as the free guide 202, the free guide 202 does not need to be provided with the positioning protrusion 21, so as to facilitate the processing of the free guide 202.

As shown in fig. 1, in some embodiments of the present utility model, the seat back further includes a conduit 30, the conduit 30 is mounted to the seat back, and the headrest guide 20 is configured to be in plug-fit with the conduit 30 in a first direction.

Specifically, the guide tube 30 is fixedly connected with the seat back, the headrest guide sleeve 20 is in plug-in fit with the guide tube 30 in the first direction, and the headrest guide sleeve 20 is fixedly connected with the guide tube 30 after the plug-in fit so as to fix the headrest guide sleeve 20, thereby preventing the stability of the headrest guide rod 10 from being affected due to shaking of the headrest guide sleeve 20.

Referring to fig. 3 and 4, in some embodiments of the present utility model, the conduit 30 is provided with a clamping groove, and the headrest guide 20 is provided with a clamping portion 24, the clamping portion 24 being adapted to be clamped with the clamping groove when the headrest guide 20 is inserted into the conduit 30.

Specifically, a square hole structure is formed on the rod portion 23, the square hole structure is penetrated along the wall thickness direction of the rod portion 23, the clamping portion 24 can be configured to be clamped and protruded, the clamping and protruded portion is protruded from the rod portion 23 along the radial direction deviating from the central axis of the rod portion 23, one end of the clamping and protruded portion is connected with one wall surface of the square hole structure in the first direction, and the other wall surfaces of the square hole structure are arranged at intervals with the clamping and protruded portion.

Further, a clamping groove is formed in the guide tube 30, the inner side wall of the guide tube 30 can press the clamping protrusion against the guide tube 30 in the process of plugging the guide tube 30, so that the guide tube 30 is deformed in the direction of the central axis of the rod portion 23, and when the clamping protrusion moves to the clamping groove, the clamping protrusion is restored to deform so as to be clamped into the clamping groove, so that the guide tube 30 is fixedly connected with the guide tube 20.

Wherein, the two clamping portions 24 on each headrest guide sleeve 20 can be provided, and the two clamping portions 24 are oppositely arranged in the radial direction, and accordingly, two clamping grooves are provided on each guide tube 30, and the two clamping grooves are respectively matched with the two clamping portions 24 in a clamping manner, so that the assembly reliability and the assembly stability of the guide tube 30 and the headrest guide sleeve 20 are further improved.

It will be understood, of course, that the engaging portion 24 is spaced from the positioning projection 21 to prevent the engaging portion 24 from interfering with the positioning projection 21.

According to the seat of the present utility model, including the headrest installation assembly 100 as described above, the seat includes the seat back provided with the back frame 200 and the headrest 300, both the back frame 200 and the duct 30 may be made of metal, and the duct 30 and the back frame 200 may be welded to each other to achieve the fixed connection of the duct 30 and the back frame 200, and at the same time, the connection reliability of the duct 30 and the back frame 200 may be ensured.

Further, the headrest guide 20 is inserted into the guide pipe 30 and is in clamping fit with the guide pipe 30, the headrest guide 10 is inserted into the headrest guide 20, and the headrest guide 10 can slide relative to the headrest guide 20, so that the headrest installation assembly 100 is assembled, and the height of the headrest 300 can be adjusted through the headrest guide 10.

According to the seat disclosed by the utility model, the positioning protrusion 21 is arranged on the inner peripheral wall of the headrest guide sleeve 20, so that the positioning protrusion 21 is in press fit with the headrest guide rod 10, and the headrest guide rod 10 is prevented from shaking relative to the headrest guide sleeve 20, so that abnormal sound is prevented from being generated by the headrest installation assembly 100, the use experience of a user is improved, the headrest 300 is prevented from shaking, the protection effect of the headrest 300 on the head and the neck of the user is ensured, and meanwhile, the headrest guide sleeve 20 forms partial interference fit with the headrest guide rod 10 through the positioning protrusion 21, so that the headrest guide rod 10 can be conveniently driven to slide.

According to the vehicle, since the vehicle is provided with the seat provided with the headrest installation assembly 100, the positioning protrusion 21 is arranged on the inner peripheral wall of the headrest guide sleeve 20, so that the positioning protrusion 21 is in press fit with the headrest guide rod 10, the headrest guide rod 10 is prevented from shaking relative to the headrest guide sleeve 20, abnormal sound is prevented from being generated by the headrest installation assembly 100, the use experience of a user is improved, the headrest 300 is prevented from shaking, the protection effect of the headrest 300 on the head and the neck of the user is ensured, the safety of the vehicle is improved, and meanwhile, the headrest guide sleeve 20 forms partial interference fit with the headrest guide rod 10 through the positioning protrusion 21, so that the headrest guide rod 10 can be conveniently driven to slide.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A headrest mounting assembly (100), comprising:

a headrest guide rod (10);

the headrest guide sleeve (20), headrest guide arm (10) can be followed the first direction and inserted headrest guide sleeve (20), the inner peripheral wall of headrest guide sleeve (20) is equipped with to headrest guide arm (10) one side bellied location arch (21), just location arch (21) can with headrest guide arm (10) offset cooperation, in order to prevent headrest guide arm (10) are relative headrest guide sleeve (20) rocks.

2. The headrest mounting assembly (100) according to claim 1, wherein the headrest guide sleeve (20) comprises:

a head (22);

the head part (22) is arranged at one end of the rod part (23), the headrest guide rod (10) is suitable for being sequentially arranged on the head part (22) and the rod part (23) in a penetrating mode along the first direction, and the positioning protrusion (21) is arranged on the rod part (23).

3. The headrest mounting assembly (100) according to claim 2, wherein the lever portion (23) is provided with a hollowed portion (231), the hollowed portion (231) is provided through along a wall thickness direction of the lever portion (23), the hollowed portion (231) is provided with a connecting rib (2311), and the positioning protrusion (21) is provided on an inner side of the connecting rib (2311) and is adapted to drive the connecting rib (2311) to elastically deform when being abutted against the headrest guide rod (10).

4. The headrest mounting assembly (100) according to claim 2, wherein the positioning projection (21) comprises:

a plurality of first positioning projections (211), wherein the plurality of first positioning projections (211) are sequentially arranged at intervals around the headrest guide rod (10) in the circumferential direction of the rod part (23);

the headrest guide rod (10) comprises a plurality of second positioning protrusions (212), wherein the second positioning protrusions (212) are sequentially arranged at intervals around the headrest guide rod (10) in the circumferential direction of the rod part (23), and the first positioning protrusions (211) and the second positioning protrusions (212) are arranged at intervals in the first direction.

5. The headrest mounting assembly (100) according to claim 2, wherein the head portion (22) is provided with a locking member, the headrest guide rod (10) is provided with a plurality of locking portions (11) arranged in the first direction in order, and the locking member is lockable with one of the plurality of locking portions (11).

6. The headrest mounting assembly (100) according to claim 5, wherein the headrest guide rods (10) and the headrest guide sleeves (20) are two groups, and the headrest guide rods (10) in at least one group are provided with the locking portions (11) and the headrest guide sleeves (20) are provided with the locking pieces.

7. The headrest mounting assembly (100) according to claim 1, further comprising a conduit (30), the conduit (30) being mounted to a seat back, and the headrest guide sleeve (20) being insertable into engagement with the conduit (30) in the first direction.

8. The headrest mounting assembly (100) according to claim 7, wherein the conduit (30) is provided with a clamping groove, the headrest guide sleeve (20) is provided with a clamping portion (24), the clamping portion (24) being adapted to be in clamping engagement with the clamping groove when the headrest guide sleeve (20) is inserted into the conduit (30).

9. A seat characterized by comprising a headrest mounting assembly (100) according to any one of claims 1-8.

10. A vehicle comprising a seat according to claim 9.