CN113306468B - Sliding locking mechanism of headrest support and automobile seat headrest support - Google Patents

Abstract

The invention discloses a sliding locking mechanism of a headrest bracket and a car seat headrest bracket. The sliding locking structure comprises a sliding plate fixed to the headrest bracket and a transfer box reciprocatingly moved on the sliding plate. A number of positioning grooves are formed on a surface of the sliding plate, first sliding members are respectively provided on both sides of the sliding plate, and second sliding members that cooperate with the first sliding members are formed on both sides of the adapter box. an elastic locking assembly, the elastic locking assembly includes at least one positioning ball partially extending out of the adapter box. The sliding locking structure of the present invention can adjust and lock the position without removing the screw, and the operation is simple and convenient; and the headrest bracket using the sliding locking mechanism can conveniently and simply adjust the orientation of the headrest in the up and down, pitch and front and rear dimensions, fully satisfying the The headrest needs of driving users.

Description

A sliding locking mechanism for a headrest bracket and a car seat headrest bracket

technical field

The invention relates to the technical field of automotive supplies, in particular to a sliding locking mechanism for a headrest bracket and a headrest bracket for a car seat.

Background technique

With the popularity of automobiles, especially electric vehicles, more and more time is spent on self-driving travel and tourism. Driving comfort has also become a new pursuit of users.

Removable headrests are generally provided on the tops of the front or rear seats of automobiles, which are used as pillows when the driver or occupant needs to rest. Different models correspond to different types of headrests, with different sizes and shapes, but the car headrest structure that comes with the vehicle is generally fixed, which is set to meet the needs of the driver or passenger's head facing straight ahead, and both are The direction or angle cannot be turned.

With the increase of self-driving travel and travel time, drivers will choose to take appropriate rest in the car from time to time, such as adjusting the seat back to facilitate the rest. However, the existing car headrests with fixed shape and structure cannot adjust the shape and posture, cannot meet the needs of different resting postures of drivers or passengers, and have poor use experience. Especially during long-distance driving, when the occupants in the rear doze off, the existing fixed structure headrest cannot play a supporting role, nor can it change with the occupant's posture, and can only rely on the occupant or the door to experience the ride Feel bad.

In the design of the existing automobile or electric vehicle supplies, the position-adjustable car seat headrest is fixed on the basis of the car seat by a plurality of screws, but the adjustment method of this kind of seat headrest needs to remove a plurality of screws first. It is very inconvenient to adjust the position of the added seat headrest, and then use multiple screws to lock the headrest in the position to be adjusted.

Therefore, the structural design of the existing automobile seat headrest is in urgent need of improvement.

SUMMARY OF THE INVENTION

Based on this, in order to solve the above-mentioned technical problems in the traditional technology, the present invention proposes a screw-free sliding locking mechanism for the headrest bracket, which has simple and convenient up and down position adjustment and locking operations; The front and rear three dimensions are simple and convenient to adjust the position of the headrest, and the car seat headrest bracket fully meets the headrest needs of driving users.

In a first aspect, the present invention relates to a sliding locking mechanism for a headrest bracket, comprising a sliding plate fixed to the headrest bracket and a reciprocating adapter box on the sliding plate, a surface of the sliding plate is formed with several Positioning grooves, the plurality of positioning grooves are arranged along the movement track of the adapter box, first sliding members are respectively provided on both sides of the sliding plate, and second sliding members that cooperate with the first sliding member are formed on both sides of the adapter box, The adapter box is provided with at least one elastic locking component, and the elastic locking component includes at least one positioning bead that partially protrudes from the adapter box. When the adapter box is toggled, the at least one positioning bead moves in the adapter box along with the adapter box. The sliding plate slides and falls into the corresponding positioning groove at the stop position of the transfer box to achieve position locking in the first direction; the transfer box is toggled, and the at least one positioning bead can be pulled out from the corresponding positioning groove. achieve unlocking.

In addition, the sliding locking mechanism is connected to a second direction adjustment assembly, the second direction adjustment assembly is linked to the third direction adjustment assembly, the plurality of positioning grooves are arranged in a row on the sliding plate along the movement track of the adapter box, the An elastic locking component is arranged in the adapter box, and the elastic locking component includes a first positioning ball partially extending out of the adapter box.

As a second embodiment of the positioning slot, the plurality of positioning slots include a first positioning slot and a second positioning slot, and the first positioning slot and the second positioning slot are respectively arranged on the sliding plate along the movement track of the adapter box. A first elastic locking component and a second elastic locking component are arranged in the adapter box. The first elastic locking component includes a first positioning bead that partially extends out of the adapter box and is matched with the first positioning groove. The second elastic locking assembly includes a second positioning bead that partially extends out of the adapter box and is matched with the second positioning groove.

In order to prevent sliding and swinging, the adapter box includes a first casing and a second casing. The second sliding member is formed on both sides of the first casing and a limit piece is arranged in the middle, and a limit groove is set in the middle of the sliding plate. , the limiting piece is used for inserting into the limiting slot to guide the sliding of the adapter box.

Further, the edges of the two sides of the sliding plate are respectively provided with a first guiding protruding strip and a second guiding protruding strip for ensuring the distance between the sliding plate and the first housing, and each elastic locking assembly includes a The mounting cylinder, the spring and the positioning bead in the connecting box are formed in the connecting box, the first shell is provided with an opening corresponding to the positioning bead, and the diameter of the opening is slightly smaller than that of the positioning bead.

In a second aspect, the present invention relates to a headrest bracket for an automobile seat, comprising a headrest support assembly, the headrest support assembly is wrapped in the headrest for supporting and adjusting the shape of the headrest, and the headrest support assembly A sliding plate is connected, and the sliding plate is slidably assembled with an adapter box. Several positioning grooves are formed on a surface of the sliding plate, and the plurality of positioning grooves are arranged along the movement track of the adapter box. The two sides of the sliding plate are respectively provided with first A sliding member, the two sides of the adapter box form a second sliding member that the first sliding member cooperates with, and at least one elastic locking component is arranged in the adapter box, and the elastic locking component includes at least one positioning part extending out of the adapter box. The positioning bead is matched with the positioning groove to realize the position locking in the first direction, the adapter box is connected to the second direction adjustment component, the second direction adjustment component is linked to the third direction adjustment component, and the third direction adjustment component It is slidably mounted on the seat body in a resettable manner, and the seat body can be detachably mounted on the car seat.

Wherein, the adapter box includes a first casing and a second casing, the second sliding member is formed on both sides of the first casing and a limiting piece is arranged in the middle, and a limiting groove is set in the middle of the sliding plate, the limiting The position piece is used to be inserted into the limit slot to guide the sliding of the adapter box; each elastic locking component includes a mounting cylinder, a spring and a positioning ball formed in the adapter box, the mounting cylinder is formed in the adapter box, the The first shell is provided with an opening corresponding to the positioning bead, and the diameter of the opening is slightly smaller than the diameter of the positioning bead.

In the multi-dimensional adjustment embodiment, the second direction adjustment assembly includes a connecting support, a pivoting column and a second locking mechanism, the connecting support and the pivoting column are rotatably connected together by bolts, and a plurality of first and second locking mechanisms are defined on the pivoting column. Three positioning grooves, the connecting support is arranged outside the second shell, the second locking mechanism includes a third mounting cylinder, a third spring and a third positioning ball protruding from the second shell, the third The installation cylinder passes through the second housing, the third spring is placed in the third installation cylinder to press the third positioning bead, and the adapter box can surround the third positioning ball when the third positioning ball does not fall into the corresponding third positioning groove The pivoting column rotates, and when it falls into the corresponding third positioning groove, the pitch angle of the headrest support assembly is locked.

In the multi-dimensional adjustment embodiment, the third directional adjustment assembly includes a motion seat, a switch mechanism, a reset mechanism and a third locking mechanism, the motion seat includes a body, the front part of the body forms the pivot column, and the two sides of the body are provided with a third a rack and a second rack, the rear part forms an installation opening; the switch mechanism includes a reset button and a separator, the reset mechanism includes a first return spring installed in the installation opening, and one end of the first return spring is connected to the body and the other One end is connected to the seat body, the third locking mechanism includes a first pressing block and a second pressing block, the first pressing block is engaged with the first rack, the second pressing block is engaged with the second rack, the first The pressing block is pressed from one side by the first pressing spring, the second pressing block is pressed from the opposite side by the second pressing spring, and each pressing block is respectively engaged with the corresponding rack to lock the front and rear positions of the headrest bracket ; Press the reset button when resetting, the separator separates the first pressure block and the second pressure block, so that each pressure block is disengaged from the meshing with the corresponding rack, and the moving seat is automatically pulled by the first return spring. retracted into the seat.

In order to adjust the shape of the pillow, the headrest support assembly includes a connecting plate, a first wing plate and a second wing plate rotatably arranged on both sides of the connecting plate, the first wing plate or the second wing plate and the connecting plate. A gear mechanism is arranged between the two, and the gear mechanism includes a gear plate arranged on the connecting plate, and also includes a gear engaging structure arranged on each wing plate.

The sliding locking mechanism of the present invention adopts a screw-free sliding and locking design, can quickly and conveniently adjust and lock the upper and lower positions of the headrest bracket, is simple and convenient to operate, and can stably support the head in the locked state.

In addition, the sliding locking mechanism of the headrest bracket of the present invention is provided with an orientation adjustment component in a three-dimensional space, which can simulate the occupant's three-dimensional head posture for adaptive support. Through the adaptive position adjustment of up and down, pitch and front and rear dimensions, the direction and position of the headrest can be changed with simple operations such as dialing or pressing a button during adjustment, providing users with a comfortable and compliant headrest experience.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

in:

Fig. 1 is the overall structure diagram of the car seat headrest bracket of the present invention after the fabric headrest is set;

2 is a perspective structural view of the sliding locking mechanism of the headrest bracket of the present invention;

3 is a structural diagram of the two-wing folding shifting gear position of the sliding locking mechanism of the headrest bracket of the present invention;

4 is a schematic diagram of a part of the structure in the fabric headrest of the sliding locking mechanism of the headrest bracket of the present invention;

5 is an enlarged structural view of the sliding plate of the sliding locking mechanism of the headrest bracket of the present invention;

6 is a partial exploded view of the second locking structure of the sliding locking mechanism of the headrest bracket of the present invention;

Fig. 7 is the disassembled structural diagram of the two wings of the sliding locking mechanism of the headrest bracket of the present invention;

8 is a perspective view of the gear mechanism of the sliding locking mechanism of the headrest bracket of the present invention;

9 is a structural diagram of the pitch and front and rear adjustment of the sliding locking mechanism of the headrest bracket of the present invention;

Figure 10 is a perspective view of the first housing of the sliding locking mechanism of the headrest bracket of the present invention;

Fig. 11 is the internal structure diagram of the second housing of the sliding locking mechanism of the headrest bracket of the present invention;

12 is a structural diagram of the moving seat and the third locking mechanism of the sliding locking mechanism of the headrest bracket of the present invention;

Fig. 13 is the internal structure diagram of the seat body of the sliding locking mechanism of the headrest bracket of the present invention;

FIG. 14 is another view of the structure of the sliding locking mechanism seat of the headrest bracket of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 , it is a perspective view of the headrest bracket of the present invention after the headrest 1 is assembled. The headrest 1 is filled with elastic cotton, the surface is covered with fabric or genuine leather, and a reinforcing plate 12 is arranged behind the headrest.

The sliding locking mechanism is an azimuth locking mechanism of the headrest bracket in the up-down direction, and the headrest bracket further includes a pitch azimuth locking mechanism and a front-rear azimuth locking mechanism.

The sliding locking mechanism includes a sliding plate fixed to the headrest bracket and a reciprocating adapter box on the sliding plate, a surface of the sliding plate is formed with a plurality of positioning grooves, the plurality of positioning grooves along the adapter box A first sliding member is arranged on both sides of the sliding plate, and a second sliding member that cooperates with the first sliding member is formed on both sides of the adapter box. At least one elastic locking component is arranged in the adapter box. The elastic locking assembly includes at least one positioning bead that partially protrudes from the adapter box. When the adapter box is toggled, the at least one positioning bead slides on the sliding plate along with the adapter box and stays at the stop position of the adapter box. The position locking in the first direction is realized by falling into the corresponding positioning groove; the unlocking can be realized by pulling the transfer box and pulling out the at least one positioning bead from the corresponding positioning groove.

The headrest can quickly adjust the position or angle in three directions under the action of the up and down azimuth locking mechanism, the pitch azimuth locking mechanism and the front and rear azimuth locking mechanism.

In general, the headrest bracket includes a headrest support assembly, the headrest support assembly is wrapped in the headrest for supporting and adjusting the shape of the headrest. Outside the headrest 1 , the headrest support assembly is connected to the sliding locking mechanism, the sliding locking mechanism is connected to the second direction adjustment assembly through the adapter box 5 , the second direction adjustment assembly is linked to the third direction adjustment assembly, the The third direction adjustment assembly is slidably mounted on the seat body 7 in a resettable manner, and the seat body 7 is detachably mounted on the car seat.

The headrest bracket of the car seat of the present invention is provided with a three-dimensional orientation adjustment component, which can simulate the three-dimensional head posture, adjust the direction and position of the headrest in the up and down, pitch and front and rear dimensions, and provide users with a comfortable and compliant headrest experience. .

The sliding locking mechanism design is adopted. When changing the height position, you can feel the sliding of the headrest on the sliding plate 51 and hear the sound of the positioning bead falling into the positioning groove, so as to judge the sliding distance and state. Compared with using a screwdriver to remove a plurality of screws and then laborious installation, the sliding locking mechanism of the present invention is simple, quick and convenient to operate.

Please refer to FIG. 3, the shape of the headrest of the car seat of the present invention can be adjusted by adjusting the bending angles of the two side wings, such as the first wing 3 and the second wing 4, under the action of the gear mechanism, changing The shape of the headrest also provides stable and comfortable support.

The following is a detailed introduction to the sliding locking mechanism of the headrest bracket and the structure and operation principle of the three-dimensional adjustment headrest bracket.

specific embodiment

Please refer to FIG. 2 to FIG. 4 , which show the specific product structure of the headrest bracket of the present embodiment.

As shown in FIG. 2 , the headrest bracket of this embodiment mainly includes a headrest support assembly, a sliding locking mechanism, a second direction adjustment assembly, a third direction adjustment assembly, and a seat body 7 .

The headrest support assembly is wrapped in the headrest 1 for supporting and adjusting the shape of the headrest 1 . The headrest support assembly is connected to the sliding locking mechanism. The sliding locking mechanism and the second direction adjusting assembly are connected through the adapter box 5 . The second direction adjustment assembly is linked to the third direction adjustment assembly, and the third direction adjustment assembly is slidably mounted on the base body 7 in a resettable manner. The seat body 7 can be detachably mounted on the car seat.

The switch box 5 is enclosed by a first casing 522 and a second casing 521 . The base 7 includes a base 711 and an upper cover 710 .

The headrest support assembly includes a connecting plate 2 and a first wing plate 3 and a second wing plate 4 rotatably arranged on both sides of the connecting plate 2 . The connecting plate 2 includes a first supporting shaft 212 and a second supporting shaft 213 which are matched with the first wing plate 3 . The connecting plate 2 also includes a third supporting shaft and a fourth supporting shaft which are matched with the second wing plate 4 . Several studs 29 are arranged on the back of the connecting plate 2 .

The sliding locking mechanism includes a sliding plate 51 fixed to the connecting plate 2 and an adapter box 5 sliding or locking on the sliding plate 51 . The switch box 5 is provided with an up and down orientation locking mechanism.

The sliding plate 51 is provided with four screw holes 518 corresponding to the studs 29 , and the sliding plate 51 is fixed and installed at the rear of the connecting plate 2 by screws.

Two sides of the sliding plate 51 are respectively provided with first sliding members. In this embodiment, the first sliding members are a first sliding channel 511 and a second sliding channel 512 . A limiting groove 513 is defined in the middle of the sliding plate 51 . The first slideway 511 , the second slideway 512 and the limiting groove 513 are parallel to each other. The side of the sliding plate 51 facing the adapter box 5 is recessed to form several limiting grooves. The plurality of limiting slots are arranged along the movement track of the adapter box 5 .

In the first embodiment, the plurality of positioning grooves are arranged in a row on the sliding plate along the movement track of the adapter box. An elastic locking component is arranged in the adapter box 5 , and each elastic locking component includes an elastic locking component formed in the rotating box. Mounting cylinders, springs and positioning beads in the box. The elastic locking assembly includes a first positioning bead partially extending out of the adapter box.

Referring to FIG. 5 and FIG. 10 , in the second embodiment, the plurality of positioning grooves are arranged in two rows. The plurality of positioning grooves include a first positioning groove 514 and a second positioning groove 515 . The first positioning grooves 514 and the second positioning grooves 515 are respectively arranged in two rows on the sliding plate 51 along the movement track of the adapter box 5 . , a first elastic locking assembly and a second elastic locking assembly are correspondingly arranged in the adapter box 5 . Each resilient locking assembly includes a mounting barrel, a spring, and a locating bead formed in the pod. The first elastic locking component includes a first positioning bead 53 that partially extends out of the adapter box and fits with the first positioning groove, and the second elastic locking component includes a portion that extends out of the adapter box and is engaged with the second positioning groove. The matched second positioning bead 54 .

The following structure is described based on the two rows of positioning grooves of the second embodiment.

As shown in FIG. 9 and FIG. 10 , two sides of the first housing 522 are formed with second sliding members that cooperate with the first sliding members. In this embodiment, the second sliding member is a first sliding piece 523 and a second sliding piece 524 provided on both sides of the first casing 522 . A limiting piece 525 is disposed in the middle of the first housing 522, and the limiting piece is used to be inserted into the limiting slot to guide the sliding of the adapter box. The first sliding piece 523 and the second sliding piece 524 are respectively embedded in the slideways formed on both sides of the sliding plate 51, such as the first slideway 511 and the second slideway 512, along the corresponding slideways, the adapter box 5 can be moved up and down slide. The limiting piece 525 is inserted into the limiting groove 513 in the middle of the sliding plate 51 and slides up and down therein.

Referring to FIG. 10 , the first housing 522 of the adapter box 5 is provided with a first mounting cylinder 526 and a second mounting cylinder 527 penetrating through the first housing 522 . The first housing 522 defines a first opening corresponding to the first positioning bead 53 , and defines a second opening corresponding to the second positioning bead 54 . The diameter of the first opening is slightly smaller than the diameter of the first positioning bead 53 . , the diameter of the second opening is slightly smaller than the diameter of the second positioning bead 54 . The first spring 531 is placed in the first installation cylinder 526 to press the first positioning bead 53 , the second spring 541 is placed in the second installation cylinder 527 to press the second positioning bead 54 , the first positioning bead 53 When the ball and the second positioning ball 54 do not fall into the corresponding first positioning groove and the second positioning groove, they can slide on the sliding plate 51, and when they fall into the corresponding first positioning groove and the second positioning groove, the headrest support assembly is locked along the The height position in the direction of the sliding plate 51 . The elastic force of the first spring 531 and the second spring 541 is related to the force of pushing the positioning bead out of the positioning groove. It is necessary to ensure that the positioning bead can be pushed out with a proper force, and to ensure that the headrest and the bracket can be positioned in the groove.

Please refer to FIG. 2 and FIG. 3 together, which show the folded state of the wings on both sides of the headrest bracket. As shown in Figure 2, the curvature of the headrest is smaller, and the expanded area of the headrest is larger. For the headrest shown in FIG. 3 , the first wing plate 3 and the second wing plate 4 on both sides of the connecting plate 2 are retracted, which is more suitable for the occupant to fix the head position during sleep to avoid swinging with the vehicle.

Please refer to FIG. 7 , in order to adjust the shape of the headrest, a gear mechanism is provided between the first wing plate 3 or the second wing plate 4 and the connecting plate 2 , and the gear mechanism includes a gear mechanism arranged on the connecting plate 2 . At least one gear plate further includes a gear engaging structure arranged on each wing plate. Please also refer to FIG. 6 , a first gear plate 23 is arranged at the top of the first support shaft 212 of the connecting plate 2 , a second gear plate 24 is arranged below the second support shaft 213 , and the gear position of the first wing plate 3 is The lower part of the rotating shaft 32 is provided with a gear engaging structure that cooperates with the first gear plate 23 , and the upper part of the gear rotating shaft 32 of the first wing plate 3 is also provided with a gear engaging structure that cooperates with the second gear plate 24 . The gear mechanism of the second wing plate 4 is the same and will not be described again. The gear plate and the gear engaging structure cooperate with each other, so that when the user moves the edges on both sides of the headrest, the sound of switching gears is emitted and the feeling of gear switching is provided.

As shown in FIG. 8 and FIG. 11 , the second direction adjustment component is a headrest bracket pitch angle adjustment mechanism. The second direction adjustment assembly includes a connecting support 58 disposed on the adapter box 5, a pivoting column 73 disposed on the base, and a second locking mechanism. The connecting support 58 and the pivoting column 73 are rotatably connected together by the bolts 59 . The pivoting column 73 defines a plurality of third positioning grooves 732 . on both sides.

Please refer to FIG. 10 and FIG. 11 together, the main components of the second locking mechanism are installed in the adapter box 5 , which includes a third installation cylinder 55 , a third spring 571 and a third housing 521 extending from the second housing 521 . The third positioning bead 57 . The second housing 521 defines a third opening corresponding to the third positioning bead 57 . The diameter of the third opening is slightly smaller than the diameter of the third positioning bead 57 . The third mounting cylinder 55 passes through the second housing 521 , the third spring 571 is placed in the third mounting cylinder 55 to press the third positioning bead 57 , and the third positioning bead 57 does not fall into the corresponding third The adapter box 5 together with the headrest support assembly can rotate around the pivot column 73 when the positioning groove 732 is positioned, and the pitch angle of the headrest support assembly is locked when it falls into the corresponding third positioning groove 732 .

The third direction adjustment assembly is mainly installed in the seat body 7 , and the body of the moving seat 72 extends out of the seat body 7 as a pivot column 73 to cooperate with the second locking structure of the second direction adjustment assembly. The third direction adjustment assembly includes a motion seat 72, a switch mechanism, a reset mechanism and a third locking mechanism.

As shown in FIG. 12 and FIG. 13 , the motion seat 72 includes a body, and the front part of the body forms the pivot column 73 . The body is provided with a first rack 723 and a second rack (not shown) on both sides, and a mounting opening 721 is formed at the rear. The switch mechanism includes a reset button 74 and a separator 743 . The reset mechanism includes a first reset spring 75 installed in the installation opening 721 . One end of the first reset spring 75 is connected to the body and the other end of the first reset spring 75 is connected to the base body 7 .

Please refer to FIG. 12 to FIG. 14 together, the third locking mechanism includes a first pressing block 745 and a second pressing block disposed on the motion seat 72 . The first pressing block 745 is engaged with the first rack 723 . The second pressing block is engaged with the second rack. The first pressing block is pressed from one side by the first pressing spring 746, and the second pressing block is pressed from the opposite side by the second pressing spring. Each pressing block engages with the corresponding rack to lock the front and rear positions of the headrest bracket.

The third directional adjustment component of the front and rear position adjustment can be automatically reset by pressing the reset button. The headrest and the headrest support as a whole are retracted to the initial position along with the motion seat 72 . When resetting, press the reset button 74, the wedge-shaped structure at the end of the separator 743 separates the first pressing block 745 and the second pressing block, so that each pressing block is disengaged from the engagement with the corresponding rack, while the moving seat is in the first pressing block 745. The return spring 75 automatically retracts into the seat body 7 under the pulling of the return spring 75 .

The car seat headrest bracket of the present invention can be quickly compressed and installed on the two headrest connecting rods on the top of the car seat. A first clamping mechanism and a second clamping mechanism are slidably arranged in the base body 7 . The first locking mechanism includes a first locking body 91 , which can slide and extend out of the base body 7 , and a second restoring spring 915 . A first bayonet 912 is provided on the first buckle body 91 . One end of the second return spring 915 is connected to the first locking body 91 through the connecting column 914 , and the other end is connected to the fixing column 712 of the base body 7 . The second locking mechanism includes a second locking body 92 and a third restoring spring 925 that can slide and extend out of the base. The second locking body 92 is provided with a second bayonet 922 . Similarly, one end of the third return spring 925 is connected to the second locking body 92 , and the other end is connected to the fixing column of the base body 7 .

In the headrest bracket of the car seat of the present invention, the headrest is connected to the orientation adjustment component in the three-dimensional space, so that the headrest can simulate the three-dimensional head posture of the occupant, and adjust the direction and position of the headrest through the three dimensions of up and down, pitch, and front and rear, so as to improve the safety of the passenger. It provides a comfortable and compliant head support experience.

The up and down position locking mechanism of the headrest of the car seat of the present invention adopts a sliding locking design. When changing the height position, you can feel the sliding of the headrest on the sliding plate 51 and hear the positioning bead fall into position only by turning the headrest. The sound of the groove can immediately judge the sliding distance and status. Compared with using a screwdriver to remove multiple screws and then laborious installation, the adjustment of the upper and lower positions is simple, quick and convenient.

The shape of the headrest of the automobile seat of the present invention can be adjusted by bending under the action of the gear mechanism, and the shape of the headrest can be changed while providing stable and comfortable support.

The above disclosures are only preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims (10)

1. A sliding locking mechanism of a headrest support is characterized in that the sliding locking mechanism is used for adjusting and locking the upper position and the lower position of the headrest support and is linked with a second direction adjusting component used for adjusting and locking the pitching angle of the headrest support, the second direction adjusting component is linked with a third direction adjusting component used for adjusting and locking the front position and the rear position of the headrest support, the sliding locking mechanism comprises a sliding plate used for being fixed to the headrest support and a switching box capable of moving back and forth on the sliding plate, the second direction adjusting component comprises a connecting support arranged on the switching box, a pivoting column arranged on the third direction adjusting component and a second locking mechanism, the connecting support and the pivoting column are rotatably connected together through bolts, a plurality of third positioning grooves used for being matched with the second locking mechanism are formed in the pivoting column, a plurality of positioning grooves are formed in one surface of the sliding plate, the positioning grooves are arranged along the movement track of the switching box, first sliding pieces are respectively arranged at two sides of the sliding plate, second sliding pieces matched with the first sliding pieces are formed at two sides of the switching box, at least one elastic locking component is arranged in the switching box, and at least one sliding ball extends out of the switching box along the shifting direction of the switching box, and stays in the positioning grooves in the sliding direction of the switching box, and at least one switching box along the sliding ball, and at least one switching position of the switching box; and the transfer box is shifted, and the at least one positioning bead is shifted out from the corresponding positioning groove, so that unlocking can be realized.

2. The headrest bracket sliding locking mechanism of claim 1, wherein the plurality of positioning grooves are arranged in a row on the sliding plate along a movement path of the adapter box, and an elastic locking member is disposed in the adapter box and includes a first positioning bead partially protruding from the adapter box.

3. The headrest bracket sliding locking mechanism of claim 1, wherein the plurality of positioning slots includes a first positioning slot and a second positioning slot, the first and second positioning slots being arranged in two rows on the sliding plate along a movement path of the adapter box, respectively, a first resilient locking member and a second resilient locking member being disposed within the adapter box, the first resilient locking member including a first positioning bead partially extending out of the adapter box and cooperating with the first positioning slot, the second resilient locking member including a second positioning bead partially extending out of the adapter box and cooperating with the second positioning slot.

4. The headrest bracket sliding lock mechanism according to any one of claims 1 to 3, wherein the adapter box includes a first housing and a second housing, the second sliding member is formed on both sides of the first housing, and a stopper piece is provided in a middle portion of the first housing, and a stopper groove is formed in a middle portion of the sliding plate, and the stopper piece is adapted to be inserted into the stopper groove to guide the sliding movement of the adapter box.

5. The headrest bracket sliding lock mechanism according to claim 4, wherein the sliding plate is provided at both side edges thereof with first and second guide ribs for securing a space between the sliding plate and the first housing, respectively, each of the elastic lock members includes a mounting cylinder formed in an adapter box, a spring and a positioning ball, the mounting cylinder being formed in the adapter box, the first housing being provided with an opening corresponding to the positioning ball, the opening having a diameter slightly smaller than a diameter of the positioning ball.

6. The utility model provides an automobile seat headrest support, includes headrest supporting component, headrest supporting component cladding is used for supporting and adjusting among the headrest the shape of headrest, its characterized in that, headrest supporting component connects the sliding plate, sliding plate and a switching box sliding assembly, a sliding plate forms a plurality of constant head tanks on the surface, a plurality of constant head tanks along the movement track of switching box is arranged, the sliding plate both sides set up first slider respectively, switching box both sides form with first slider complex second slider, set up an at least elasticity locking component in the switching box, elasticity locking component includes that the part stretches out at least one location pearl of switching box, the locking of position about realizing in location pearl and the constant head tank cooperation, the switching box is connected to the second direction adjustment subassembly that is used for pitch angle adjustment and locking, second direction adjustment subassembly linkage is used for headrest support front and back position adjustment and the third direction adjustment subassembly of locking, second direction adjustment subassembly is including setting up connecting support on the switching box, setting up in the pin joint post and the second locking mechanism of third direction adjustment subassembly, the pin joint post is connected together through the pin joint is used for the third direction adjustment subassembly to the pedestal of the removable mounting of third direction adjustment subassembly, and the pedestal can be used for resetting to the third direction adjustment subassembly on the pedestal.

7. The headrest bracket for the seat of the automobile according to claim 6, wherein the adapter box comprises a first shell and a second shell, the second sliding member is formed on two sides of the first shell, a limiting piece is arranged in the middle of the first shell, a limiting groove is formed in the middle of the sliding plate, and the limiting piece is used for being inserted into the limiting groove to guide the adapter box to slide; each elastic locking assembly comprises an installation cylinder, a spring and a positioning ball which are formed in the adapter box, the installation cylinder is formed in the adapter box, an opening is formed in the first shell corresponding to the positioning ball, and the diameter of the opening is slightly smaller than that of the positioning ball.

8. The headrest bracket for a seat of a vehicle as claimed in claim 7, wherein the second locking mechanism includes a third mounting tube, a third spring and a third positioning ball extending from the second housing, the third mounting tube extends through the second housing, the third spring is disposed in the third mounting tube and presses the third positioning ball, the adapter box is rotatable about the pivot post when the third positioning ball does not fall into the corresponding third positioning slot, and the pitch angle of the headrest support assembly is locked when the third positioning ball falls into the corresponding third positioning slot.

9. The headrest bracket for the seat of the automobile according to claim 8, wherein the third direction adjustment assembly comprises a moving seat, a switch mechanism, a reset mechanism and a third locking mechanism, the moving seat comprises a body, the front part of the body forms the pivot column, two sides of the body are provided with a first rack and a second rack, and the rear part of the body forms a mounting opening; the switch mechanism comprises a reset button and a separator, the reset mechanism comprises a first reset spring installed in the installation opening, one end of the first reset spring is connected with the body, the other end of the first reset spring is connected with the seat body, the third locking mechanism comprises a first pressing block and a second pressing block, the first pressing block is meshed with the first rack, the second pressing block is meshed with the second rack, the first pressing block is pressed from one side by the first pressing spring, the second pressing block is pressed from the opposite side by the second pressing spring, and each pressing block is respectively meshed with the corresponding rack so as to lock the front and back positions of the headrest support; when the reset button is pressed during reset, the separator separates the first pressing block from the second pressing block, each pressing block is separated from the corresponding rack, and meanwhile, the moving seat automatically retracts into the seat body under the pulling of the first reset spring.

10. The headrest bracket for vehicle seats according to any of claims 6 to 9, wherein the headrest support assembly includes a connecting plate, and a first wing and a second wing rotatably disposed on either side of the connecting plate, and a shift mechanism is disposed between the first wing or the second wing and the connecting plate, the shift mechanism including a shift plate disposed on the connecting plate and a shift engaging structure disposed on each wing.

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