CN213534514U - Automobile seat headrest fixing mechanism - Google Patents

Abstract

The utility model belongs to the technical field of car seat, concretely relates to car seat headrest fixed establishment. It has solved the current inconvenient and unstable problem of headrest altitude mixture control. The automobile seat headrest fixing mechanism is characterized in that a mounting support is arranged in the seat backrest, a mounting channel is formed in the mounting support, the headrest rod is slidably arranged in the mounting channel, a clamping assembly capable of clamping and positioning the headrest rod is further arranged on the mounting support, a first elastic piece and a second elastic piece are respectively arranged on two sides of the headrest rod and oppositely arranged, and the first elastic piece and the second elastic piece are pressed against the side wall of the headrest rod at the same pressure. The utility model discloses a both made things convenient for the regulation of headrest height, and can guarantee the stability of headrest pole.

Description

Automobile seat headrest fixing mechanism

Technical Field

The utility model belongs to the technical field of car seat, concretely relates to car seat headrest fixed establishment.

Background

At present, the headrest on the automobile seat has two forms, one is detachably fixed on the automobile seat, and the other is directly integrated with the automobile seat. The headrest and the automobile seat are arranged in an integrated and relatively detachable mode, the vibration abnormal sound generated by the headrest and the automobile seat is obviously reduced, but the height of the headrest cannot be adjusted after the headrest and the automobile seat are arranged in an integrated mode, and a part of use experience of some users needing to adjust the height of the headrest is lost; when a person is trapped in the vehicle, the headrest is detached from the seat and can be used as a tool for breaking the window glass, and when the headrest and the seat are integrated, the function is lost.

At present, a fixing structure between a headrest and a seat which are detachably arranged on a vehicle is similar to that adopted in the Chinese patent CN201410823742, the structure only limits a headrest rod on one side of the headrest rod, so that the headrest can be fixed on the seat, if the height position of the headrest is required to be adjusted, one hand needs to press a sliding block to prevent the sliding block from limiting the headrest rod on one side of the headrest rod, and the other hand forcibly lifts a headrest net to adjust the height position of the headrest. Because the structure only limits the position of the one-side headrest rod, the headrest rod is tightly matched with the guide hole, so that the headrest is prevented from shaking relative to the seat in a limiting way, and the tight matching also causes the height of the headrest to be adjusted by large force, so that the height of the headrest is inconvenient to adjust.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a car seat headrest fixed establishment, the utility model aims to solve the technical problem that: the stability of the headrest rod can be ensured while the height of the headrest is convenient to adjust.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a car seat headrest fixed establishment, is including inserting the headrest pole of locating on the backrest, its characterized in that, be equipped with the installing support in the backrest, be equipped with the installation passageway on the installing support, headrest pole slidable sets up in the installation passageway, still be equipped with the joint subassembly that can fix a position headrest pole joint on the installing support, still be equipped with respectively and be located relative elastic component one and the elastic component two that set up in headrest pole both sides on the installing support, elastic component one and elastic component two pressure-sharing lean on the lateral wall of headrest pole.

The headrest rod is inserted into the mounting channel of the mounting bracket, the headrest rod can move up and down in the mounting channel under the condition that the headrest rod is not clamped with the clamping component, and the headrest rod cannot move up and down in the mounting channel after the clamping component is clamped with the headrest rod; when the headrest rod is inserted into the installation channel, the first elastic part and the second elastic part exert extrusion force on the two pairs of headrest rods, the first elastic part and the second elastic part are arranged oppositely, so that the extrusion force exerted by the first elastic part and the second elastic part on the headrest rods is opposite in direction, the existing automobile seat headrest fixing mechanism ensures that the headrest rods are in contact fit with the wall of the whole installation hole in order to ensure stability, and adjustment is influenced. Thereby facilitating the adjustment of the height of the headrest and ensuring the stability of the headrest rod.

In foretell car seat headrest fixed establishment, the installing support includes vertical front bezel and the back plate that sets up, the installation passageway is located between front bezel and the back plate, elastic component one is including being located the front bezel towards the convex shell fragment of back plate one, elastic component two is including being located the back plate towards the convex shell fragment of front bezel two. The installation channel is located between the front plate and the rear plate, therefore, the headrest rod is also located between the front plate and the rear plate, the first elastic piece arranged on the front plate and the second elastic piece arranged on the rear plate protrude to press the headrest rod, the shaking of the headrest rod between the front plate and the rear plate can be reduced, meanwhile, the contact area between the installation support and the headrest rod is reduced, the generation of friction force between the installation support and the headrest rod can be reduced when the height of the headrest rod is adjusted, and therefore the headrest rod is not easy to adjust, the automobile seat headrest fixing mechanism facilitates the adjustment of the position of the headrest rod, and the adjustment of the height of the headrest is facilitated.

In the headrest fixing mechanism for the automobile seat, the first elastic sheet arranged on the front plate is distributed in height relative to the second elastic sheet arranged on the rear plate. The first shell fragment that the height distributes and sets up and the second shell fragment are used in the extrusion force position on the headrest pole also the height difference, make first shell fragment and second shell fragment produce shearing force at the headrest pole, further reduce rocking of headrest pole between front bezel and back plate, can reduce the production of the frictional force between installing support and the headrest pole when carrying out height-adjusting to the headrest pole, thereby it is not hard when making the height-adjusting of headrest pole, this car seat headrest fixed establishment makes things convenient for the regulation of headrest pole position, thereby made things convenient for the regulation of headrest height.

In the headrest fixing mechanism for the automobile seat, a guide plate is horizontally arranged on the top of the mounting bracket and is connected with the front plate and the rear plate, the guide plate is positioned on the top of the mounting bracket, and a first guide hole for inserting a headrest rod is formed in the guide plate. The deflector sets up at the top of installing support, when the headrest pole inserts the installing support in, can pass guiding hole one and be located the position of installation passageway in order to confirm the headrest pole, make the headrest pole can effectually contact with shell fragment one and shell fragment two, and then make the reliable effect of elastic sheet one and elastic sheet two produce shear stress on the headrest pole and to the headrest pole, and guiding hole one also can carry on spacingly to the headrest pole, promote the headrest pole and insert the reliability of establishing in the installing support.

In foretell car seat headrest fixed establishment, insert on the installing support and be equipped with two piece at least headrest poles, all be provided with a plurality of draw-in grooves along its axial interval on every headrest pole, the joint subassembly including can simultaneously with the joint spare of the draw-in groove looks joint on every headrest pole with can promote the button that the joint spare removed, still be equipped with in the installing support and can be used in joint spare or button and make the joint subassembly reset to the elastic component three with headrest pole looks joint. In general, a headrest on an automobile seat is provided with two headrest rods, but only one of the two headrest rods is usually fixed, so that the headrest can be reliably fixed on a seat back only by adopting interference fit between the existing headrest rods and the automobile seat, huge resistance needs to be overcome when the height of the headrest is adjusted, and the headrest is difficult to adjust when the height of the headrest is adjusted; the clamping piece in the clamping assembly can simultaneously clamp each headrest rod inserted in the mounting bracket, so that the headrest rods inserted in the mounting bracket can be limited in the height direction, and the first elastic sheet and the second elastic sheet are matched to limit the shaking between the headrest rods and the mounting bracket, so that the reliable fixation can be realized without interference fit between the headrest rods and a seat, the generation of friction force between the mounting bracket and the headrest rods can be reduced when the height of the headrest rods is adjusted, the height of the headrest rods is adjusted easily, and the height adjustment of the headrest rods is facilitated; under the general condition, the joint spare is connected with headrest pole looks joint all the time under the effect of elastic component three, when the height of headrest pole needs to be adjusted, press the button, compress elastic component three, promote joint spare, make joint spare lose with the headrest pole between the joint relation, thereby make headrest pole can carry out the regulation on the high position, after headrest pole height control accomplishes, loosen the button and make the joint subassembly reset under elastic component three's effect, make joint spare again with every headrest pole support joint location, this car seat headrest fixed establishment makes things convenient for the regulation of headrest pole position, thereby made things convenient for the regulation of headrest height.

In the headrest fixing mechanism for the automobile seat, the mounting support comprises a supporting plate which is horizontally arranged, the clamping piece is rod-shaped and is located on the supporting plate, a second guide hole is formed in the front plate, a guide shaft which is inserted into the second guide hole is arranged on the key, the guide shaft can abut against the clamping piece, a baffle which is located on the rear side of the rear plate is further arranged on the mounting support, one end of the third elastic piece abuts against the baffle, and the other end of the third elastic piece abuts against the clamping piece. The setting of backup pad is convenient for place shaft-like joint spare, insert the guiding axle on the button and locate in guiding hole two, when pressing the button and remove towards the back plate, the guiding axle makes the button can have fixed orbit to remove with the cooperation of guiding hole two, the guiding axle leans on the back with joint spare counterbalance, along with the continuation of button remove towards the back plate, the guiding axle can support joint spare and remove, the removal of joint spare can make elastic component three receive the compression and the joint spare can and the headrest pole between lose the relation of joint, thereby make the position of headrest pole on the installing support can adjust, install back on the seat with the installing support, the front bezel is towards the seat the place ahead, consequently, the button of assembling on the front bezel also is towards the seat the place ahead, the button in the seat place ahead is pressed by the passenger more easily, be convenient for the regulation of headrest position.

In the headrest fixing mechanism for the automobile seat, a first groove formed by bending is formed in the clamping piece, the first groove is opened towards the rear plate, the elastic piece is located in the first groove, a limiting column is further arranged on the supporting plate, a second groove formed by bending is further formed in the rod-shaped clamping piece, the second groove is opened towards the front plate, and the limiting column is located in the second groove. Recess one on the joint spare can carry out spacingly to elastic component three, and the cooperation between spacing post that sets up in the backup pad and the recess two can prevent that the joint spare from excessively resetting.

In foretell car seat headrest fixed establishment, the installing support still includes the limiting plate that sets up along the horizontal direction, the joint spare is located between limiting plate and the backup pad. The limiting plate and the supporting plate are matched to guide the movement of the clamping piece, so that the movement of the clamping piece can be more stable.

In foretell car seat headrest fixed establishment, all set up the joint plane that can lean on with draw-in groove cell wall counterbalance on shaft-like joint spare both ends. Can promote the stability of the joint structure between joint spare and the headrest pole through the planar setting of joint.

In the headrest fixing mechanism for the automobile seat, the rear plate is provided with the two second elastic sheets which are arranged at intervals in the height direction, and the first elastic sheet in the installation channel is located between the two second elastic sheets. Through setting up two shell fragment two and the effect of a shell fragment produces two shearing forces on the headrest pole, further reduce the rocking of headrest pole between front bezel and back plate, can reduce the production of the frictional force between installing support and the headrest pole when carrying out height-adjusting to the headrest pole to it is not hard when making the headrest pole altitude mixture control, this car seat headrest fixed establishment makes things convenient for the regulation of headrest pole position, thereby made things convenient for the regulation of headrest height.

Compared with the prior art, this car seat headrest fixed establishment has following advantage:

1. the first elastic piece and the second elastic piece act on extrusion force applied by the headrest rod in opposite directions, so that the headrest rod is reduced and rocked in the installation channel, and the generation of friction force between the installation support and the headrest rod can be reduced when the height of the headrest rod is adjusted, so that the height of the headrest rod is adjusted easily, and the adjustment of the height of the headrest is facilitated.

2. The joint piece can carry out the joint to every headrest pole of inserting establishing in the installing support simultaneously, and then make the headrest pole homoenergetic of pegging graft in the installing support obtain direction of height spacing, cooperation shell fragment one and two restriction headrest poles of shell fragment and the installing support between rock, consequently need not realize reliably fixedly through the interference fit between headrest pole and the seat, can reduce the production of the frictional force between installing support and the headrest pole when carrying out height-adjusting to the headrest pole, made things convenient for the regulation of headrest height.

3. The mounting bracket is arranged on the seat, wherein the front plate on the mounting bracket faces the seat direction, so that the keys assembled on the front plate also face the front of the seat, and the keys facing the front of the seat are easier to press by passengers, thereby facilitating the adjustment of the position of the headrest.

Drawings

Fig. 1 is a schematic view of the overall structure of a headrest fixing mechanism for an automobile seat.

FIG. 2 is an exploded view of the headrest securing mechanism of the vehicle seat

Fig. 3 is an enlarged view of fig. 2 at the mounting bracket.

Fig. 4 is a perspective view of one of the views of the headrest fixing mechanism of the car seat.

Fig. 5 is a perspective view of another perspective view of the headrest fixing mechanism for the automobile seat.

Fig. 6 is a partial enlarged view I of fig. 5.

FIG. 7 is a perspective cutaway view of the mounting bracket and bezel after assembly.

Fig. 8 is a partial enlarged view II of fig. 7.

Fig. 9 is a sectional view of the headrest fixing mechanism of the vehicle seat.

Figure 10 is a perspective view of the latch assembly.

Fig. 11 is a schematic view of one structure of the card slot and the card connector.

Fig. 12 is another schematic view of the structure of the card slot and the card member.

Fig. 13 is a schematic structural view of the second embodiment.

FIG. 14 is a schematic structural view of the third embodiment.

In the figure, 1, a headrest rod; 1a, a clamping groove; 2. mounting a bracket; 2a, installing a channel; 2b, a front plate; 2b1 and a second guide hole; 2c, a back plate; 2d, a guide plate; 2d1, guide hole one; 2e, a support plate; 2e1, a limit post; 2f, a limiting plate; 3. a clamping assembly; 3a, a clamping piece; 3a1, groove one; 3a2 and a second groove; 3a3, snap plane; 3b, pressing a key; 3b1, guide shaft; 4. a first elastic part; 4a, a first elastic sheet; 5. a second elastic piece; 5a, a second elastic sheet; 6. an elastic member III; 7. and a baffle plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 to 2, a general headrest is inserted into a seat back through a headrest rod 1, two headrest rods 1 usually extend from the general headrest of the headrest rod 1, the two headrest rods 1 may be formed by bending a rod into a U shape, so that two headrest rods 1 extend out of the headrest, and substantially, the two headrest rods 1 are a rod, which is the scheme in this embodiment; or the two occipital rods 1 may be independent of each other. Or three headrests are extended out of the headrest.

As shown in fig. 1 to 9, the vehicle seat headrest fixing mechanism includes a mounting bracket 2 disposed in a seat back, the mounting bracket 2 includes a front plate 2b and a rear plate 2c, a mounting channel 2a for inserting a headrest rod 1 is formed between the front plate 2b and the rear plate 2c, the headrest rod 1 is inserted in the mounting channel 2a and can move up and down, a gap is formed between the headrest rod 1 and the front plate 2b, a gap is also formed between the headrest rod 1 and the rear plate 2c, a first elastic member 4 capable of applying an extrusion force to the headrest rod 1 is disposed on the front plate 2b, a second elastic member 5 capable of applying an extrusion force to the headrest rod 1 is disposed on the rear plate 2c, and the first elastic member 4 and the second elastic member 5 are respectively located on two sides of the headrest rod 1 and are disposed oppositely. The first elastic piece 4 is an elastic piece 4a formed on the front plate 2b through injection molding, the first elastic piece 4a is arranged in a protruding mode towards the rear plate 2c, the second elastic piece 5 is an elastic piece two 5a formed on the rear plate 2c through injection molding, the second elastic piece 5a is arranged in a protruding mode towards the front plate 2b, and the first elastic piece 4a on the front plate 2b is arranged in a height distribution mode relative to the second elastic piece 5a on the rear plate 2 c.

As shown in fig. 1 to 6, when the headrest rod 1 is inserted into the installation channel 2a, the first elastic sheet 4a and the second elastic sheet 5a apply an extrusion force to the headrest rod 1, the directions of the extrusion forces applied by the first elastic sheet 4a and the second elastic sheet 5a acting on the headrest rod 1 are opposite, so that the headrest rod 1 is reduced in shaking in the installation channel 2a, the positions of the extrusion forces applied by the first elastic sheet 4a and the second elastic sheet 5a which are distributed in height on the headrest rod 1 are different, so that the first elastic sheet 4a and the second elastic sheet 5a generate a shearing force on the headrest rod 1, further the shaking of the headrest rod 1 between the front plate 2b and the rear plate 2c is reduced, meanwhile, the contact area between the installation bracket 2 and the headrest rod 1 is reduced, when the height of the headrest rod 1 is adjusted, the generation of a friction force between the installation bracket 2 and the headrest rod 1 can be reduced, thereby the height of the headrest rod 1 is adjusted without effort, the automobile seat headrest fixing mechanism facilitates the adjustment of the position of the headrest rod 1, thereby facilitating the adjustment of the height of the headrest.

Further, as shown in fig. 1 to 7, two second elastic pieces 5a are arranged on the rear plate 2c, the two second elastic pieces 5a are arranged at intervals along the height direction, and the height position of the first elastic piece 4a on the front plate 2b is located between the two second elastic pieces 5a on the rear plate 2 c. Through setting up two 5a of shell fragments and the effect of shell fragment 4a on headrest pole 1 and producing two shearing forces, further reduce the rocking of headrest pole 1 between front bezel 2b and back plate 2c, can reduce the production of the frictional force between installing support 2 and the headrest pole 1 when carrying out height-adjusting to headrest pole 1 to it is not hard when making the height-adjusting of headrest pole 1.

As shown in fig. 2, 3, 5, 6, 7, 8 and 9, the mounting bracket 2 is further horizontally provided with a guide plate 2d, a limit plate 2f and a support plate 2e, and the guide plate 2d, the limit plate 2f and the support plate 2e are arranged from top to bottom at intervals. The guide plate 2d is located at the top of the mounting support 2, the guide plate 2d is connected with the front plate 2b and the rear plate 2c, the specific guide plate 2d is located between the front plate 2b and the rear plate 2c, a first guide hole 2d1 for the headrest rod 1 to be inserted is formed in the guide plate 2d corresponding to the distance between the two headrest rods 1, when the headrest rod 1 is inserted into the mounting support 2, the first guide hole 2d1 can be penetrated to determine the position of the headrest rod 1 in the mounting channel 2a, the headrest rod 1 can be effectively contacted with the first elastic sheet 4a and the second elastic sheet 5a, and therefore the first elastic sheet and the second elastic sheet can reliably act on the headrest rod 1 and generate shear stress on the headrest rod 1, the first guide hole 2d1 can also limit the headrest rod 1, and the reliability of the headrest rod 1 inserted into the mounting support 2 is improved.

As shown in fig. 2, 3, 5, 6, 7, 8, 9 and 10, the fixing mechanism for the headrest of the automobile seat further comprises a clamping component 3 capable of clamping and positioning the headrest rods 1, and a plurality of clamping grooves 1a are arranged on each headrest rod 1 at intervals along the axial direction of the headrest rod. The clamping component 3 comprises a clamping piece 3a which can be clamped with the clamping groove 1a on each headrest rod 1 and a key 3b which can push the clamping piece 3a to move, and an elastic piece three 6 which can act on the clamping piece 3a or the key 3b to enable the clamping component 3 to reset to be clamped with the headrest rods 1 is further arranged in the mounting support 2.

In general, a headrest on an automobile seat is provided with two headrest rods 1, but only one of the two headrest rods 1 is usually fixed, so that the headrest can be reliably fixed on a seat back only by adopting interference fit between the existing headrest rods 1 and the automobile seat, so that huge resistance needs to be overcome when the height of the headrest is adjusted, and the headrest is difficult to adjust when the height of the headrest is adjusted; the clamping piece 3a in the clamping component 3 can simultaneously clamp each headrest rod 1 inserted in the mounting bracket 2, so that the headrest rods 1 inserted in the mounting bracket 2 can be limited in the height direction, and the first elastic sheet 4a and the second elastic sheet 5a are matched to limit the shaking between the headrest rods 1 and the mounting bracket 2, so that reliable fixing is realized without interference fit between the headrest rods 1 and a seat, and the generation of friction force between the mounting bracket 2 and the headrest rods 1 can be reduced when the height of the headrest rods 1 is adjusted, so that labor is saved when the height of the headrest rods 1 is adjusted, and the height adjustment of a headrest is facilitated; under the action of the third elastic piece 6, the clamping piece 3a is always clamped with the headrest rod 1, when the height of the headrest rod 1 needs to be adjusted, the button 3b is pressed, the third elastic piece 6 is compressed, the clamping piece 3a is pushed, the clamping relation between the clamping piece 3a and the headrest rod 1 is lost, so that the headrest rod 1 can be adjusted in height position, after the height adjustment of the headrest rod 1 is completed, the button 3b is released, the clamping component 3 resets under the action of the third elastic piece 6, the clamping piece 3a is clamped and positioned with each headrest rod 1 support again, the automobile seat headrest fixing mechanism facilitates the adjustment of the position of the headrest rod 1, and the adjustment of the height of a headrest is facilitated.

As shown in fig. 2, 3, 5, 6 and 9, the third elastic member 6 and the third snap-in member 3a are located between the supporting plate 2e and the limiting plate 2f, and the rear portions of the supporting plate 2e and the limiting plate 2f are not blocked by the rear plate 2c, so that the third snap-in member 3a and the third elastic member 6 can be assembled from the rear of the mounting bracket 2, and after the third snap-in member 3a and the third elastic member 6 are placed between the supporting plate 2e and the limiting plate 2f, the mounting bracket 2 is assembled with the baffle 7 for limiting the third snap-in member 3a and the third elastic member 6 between the supporting plate 2e and the limiting plate 2 f.

As shown in fig. 8 and 9, in this embodiment, the clip member 3a is rod-shaped, the rod-shaped clip member 3a has a first bent groove 3a1, the first groove 3a1 has an opening facing the rear plate 2c, the third elastic member 6 is a compression spring and is located in the first groove 3a1, one end of the third elastic member 6 abuts against the baffle 7, the other end of the third elastic member 6 abuts against the clip member 3a, the support plate 2e is provided with a position-limiting post 2e1, the rod-shaped clip member 3a further has a second bent groove 3a2, the second groove 3a2 has an opening facing the front plate 2b, and the position-limiting post 2e1 is located in the second groove 3a 2. Recess 3a1 on the joint piece 3a can carry on spacingly to elastic component three 6, and the cooperation between spacing post 2e1 that sets up on backup pad 2e and the two 3a2 of recess can prevent that joint piece 3a from excessively reseing.

As shown in fig. 7, 8, 10, 11 and 12, two ends of the rod-shaped clip 3a are both provided with clip planes 3a3 capable of abutting against the groove wall of the clip groove 1a, the clip planes 3a3 are arranged upward, and the opening of the clip groove 1a faces the baffle 7. The slot 1a may be a square slot or a triangular slot.

As shown in fig. 9 and 10, the front plate 2b is provided with a second guide hole 2b1, the key 3b is provided with a second guide shaft 3b1 inserted in the second guide hole 2b1, the second guide shaft 3b1 can abut against the clip 3a, the cooperation of the second guide shaft 3b1 and the second guide hole 2b1 enables the key 3b to move with a fixed track, the second guide shaft 3b1 abuts against the clip 3a, the second guide shaft 3b1 can abut against the clip 3a to move along with the continued movement of the key 3b towards the rear plate 2c, the movement of the clip 3a can compress the third elastic element 6 and the clip 3a can lose the clip relation with the headrest rod 1, so that the position of the headrest rod 1 on the mounting bracket 2 can be adjusted, the front plate 2b faces the front of the seat after the mounting bracket 2 is mounted on the seat, and therefore the key 3b mounted on the front plate 2b also faces the front of the seat, the push button 3b facing the front of the seat is more easily pushed by the passenger, facilitating adjustment of the position of the headrest.

As shown in fig. 1 to 10, in the mounting bracket 2, in order to save material and improve the structural strength of the mounting bracket 2, the rear plate 2c is only shown on the left and right sides of the portion that needs to form the mounting passage 2a with the front plate 2b, and reinforcing ribs are provided on both the front and rear portions of the front plate 2 b.

As shown in fig. 1 to 10, in the present embodiment, two mounting passages 2a are formed between the rear plate 2c and the front plate 2b on the left and right sides. However, if the rear plate 2c and the front plate 2b have the same size, the installation passage 2a is only one, and the design may be different according to actual requirements. The guide plate 2d is also provided with a guide sleeve communicated with the guide hole I2 d1, the guide sleeve and the headrest rods 1 can be in clearance fit, and the number of the guide holes I2 d1 and the number of the guide sleeves are determined according to the number of the headrest rods 1 inserted into the mounting bracket 2.

Example two

As shown in fig. 13, the present embodiment is substantially the same as the first embodiment, and the difference is that in the present embodiment, the first elastic member 4 and the second elastic member 5 are both compression springs, a C-shaped abutting member is provided at one end of the springs close to the headrest rod 1, and the springs act on the headrest rod 1 through the abutting member to apply the pressing force to the headrest rod 1.

EXAMPLE III

The present embodiment is substantially the same as the first embodiment, and the difference is that, as shown in fig. 14, the clamping member 3a in the present embodiment is plate-shaped, the plate-shaped clamping member 3a is disposed between the limiting plate 2f and the supporting plate 2e in a sliding manner, the plate-shaped clamping member 3a is provided with stroke holes corresponding to the number of the headrest rods 1, the left side of the mounting bracket 2 is provided with the baffle 7, the elastic member three 6 is disposed between the baffle 7 and the clamping member 3a, the elastic member three 6 is a compression spring, the right side of the mounting bracket 2 is provided with a mounting plate, the mounting plate is provided with the guide hole two 2b1, the guide shaft 3b1 on the key 3b is inserted into the guide hole two 2b1, and the opening of the clamping groove 1a on the headrest rod 1 faces the.

However, when the key 3b is pressed, the key 3b can push the plate-shaped clamping piece 3a to move towards the left relative to the headrest rod 1, and the clamping plate clamped in the clamping groove of the headrest rod 1 is separated from the clamping groove 1a under the action of the third elasticity, so that the height of the headrest rod 1 can be adjusted.

Example four

This embodiment is substantially the same as the first embodiment except that, as shown in fig. 14, the elastic member in this embodiment is an extension spring, one end of the extension spring is connected to the front plate 2b, and the other end is connected to a rod-shaped engaging member 3a, and when the pressing force applied to the key 3b disappears, the engaging member 3a is engaged with the headrest rod 1 again by the extension spring.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The utility model provides a car seat headrest fixed establishment, is including inserting headrest pole (1) of locating on the backrest, its characterized in that, be equipped with installing support (2) in the backrest, be equipped with installation passageway (2a) on installing support (2), headrest pole (1) slidable sets up in installation passageway (2a), still be equipped with joint subassembly (3) that can fix a position headrest pole (1) joint on installing support (2), still be equipped with respectively and be located relative elastic component (4) and the elastic component two (5) that set up in headrest pole (1) both sides on installing support (2), elastic component (4) and elastic component two (5) voltage-sharing lean on the lateral wall of headrest pole (1).

2. The headrest fixing mechanism for the automobile seat according to claim 1, wherein the mounting bracket (2) includes a front plate (2b) and a rear plate (2c) which are vertically arranged, the mounting passage (2a) is located between the front plate (2b) and the rear plate (2c), the first elastic member (4) includes a first elastic piece (4a) which is located on the front plate (2b) and protrudes toward the rear plate (2c), and the second elastic member (5) includes a second elastic piece (5a) which is located on the rear plate (2c) and protrudes toward the front plate (2 b).

3. The headrest fixing mechanism for the vehicle seat according to claim 2, wherein the first resilient pieces (4a) provided on the front plate (2b) are arranged in a height distribution with respect to the second resilient pieces (5a) provided on the rear plate (2 c).

4. The headrest fixing mechanism for the automobile seat according to claim 2, wherein a guide plate (2d) is horizontally arranged at the top of the mounting bracket (2), the guide plate (2d) is connected with the front plate (2b) and the rear plate (2c), the guide plate (2d) is arranged at the top of the mounting bracket (2), and a first guide hole (2d1) for inserting the headrest rod (1) is formed in the guide plate (2 d).

5. The automobile seat headrest fixing mechanism according to claim 2, 3 or 4, characterized in that at least two headrest rods (1) are inserted into the mounting bracket (2), a plurality of clamping grooves (1a) are formed in each headrest rod (1) at intervals along the axial direction of each headrest rod, each clamping component (3) comprises a clamping piece (3a) capable of being clamped with the clamping grooves (1a) in each headrest rod (1) and a key (3b) capable of pushing the clamping piece (3a) to move, and an elastic piece III (6) capable of acting on the clamping piece (3a) or the key (3b) to enable the clamping component (3) to reset to be clamped with the headrest rods (1) is further arranged in the mounting bracket (2).

6. The headrest fixing mechanism for the automobile seat according to claim 5, wherein the mounting bracket (2) comprises a support plate (2e) horizontally arranged, the clamping member (3a) is in a rod shape and is located on the support plate (2e), a second guide hole (2b1) is formed in the front plate (2b), a guide shaft (3b1) inserted in the second guide hole (2b1) is arranged on the key (3b), the guide shaft (3b1) can abut against the clamping member (3a), a baffle (7) located at the rear side of the rear plate (2c) is further arranged on the mounting bracket (2), one end of the third elastic member (6) abuts against the baffle (7), and the other end of the third elastic member (6) abuts against the clamping member (3 a).

7. The headrest fixing mechanism for the automobile seat according to claim 6, wherein the clip member (3a) has a first bent groove (3a1), the first bent groove (3a1) opens toward the rear plate (2c), the third resilient member (6) is located in the first bent groove (3a1), the support plate (2e) is further provided with a position-limiting pillar (2e1), the rod-shaped clip member (3a) further has a second bent groove (3a2), the second bent groove (3a2) opens toward the front plate (2b), and the position-limiting pillar (2e1) is located in the second bent groove (3a 2).

8. The headrest fixing mechanism for car seats according to claim 7, wherein the mounting bracket (2) further comprises a limiting plate (2f) disposed along the horizontal direction, and the clip member (3a) is located between the limiting plate (2f) and the supporting plate (2 e).

9. The headrest fixing mechanism for the automobile seat according to claim 5, wherein the rod-shaped engaging member (3a) has engaging planes (3a3) at both ends thereof, which can abut against the groove walls of the engaging groove (1 a).

10. The headrest fixing mechanism for the automobile seat according to claim 3, wherein the rear plate (2c) is provided with two second resilient plates (5a), the two second resilient plates (5a) are arranged at intervals along the height direction, and the first resilient plate (4a) in the installation channel (2a) is located between the two second resilient plates (5 a).

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