CN220281203U - Automobile seat headrest capable of moving forwards and backwards - Google Patents

Abstract

The utility model provides a car seat headrest that can reciprocate, including pillowcase, the obturator, the pillow frame, the pillow pole, be provided with the fixing base in the pillow frame, the movable block, the frame type frame, reset spring, the rack, the button, be provided with the through-hole in the bottom of fixing base, the top interval at the fixing base is provided with the guide shaft, the guide shaft passes the movable block, the movable block can reciprocate relative the guide shaft, the pillow pole is connected on the movable block, the frame is connected on the fixing base through reset spring, the lateral part of frame type frame is connected with the button, the rack is connected with the frame type frame, be provided with two convex parts on the movable block, two guide shafts pass corresponding convex parts, the frame type frame cover is provided with the lateral wall groove that can insert the rack on first convex part, set up the profile of tooth arch on the inner wall of lateral wall groove, the width is the same between the dogtooth width and the dogtooth. The utility model has the advantages that: the headrest is stable to move, the locking effect is better after the headrest moves in place, and the service life is longer.

Description

Automobile seat headrest capable of moving forwards and backwards

Technical Field

The utility model relates to the technical field of manufacturing of automobile seat headrests, in particular to an automobile seat headrest capable of moving forwards and backwards.

Background

The prior Chinese patent with the application number of CN20151789708. X named as a vehicle seat headrest with sound and capable of moving back and forth discloses a vehicle seat headrest with sound and capable of moving back and forth. Comprises a headrest rod, a front shell, a rear shell, a pushing mechanism, a sound assembly, a fixed seat and a moving block; the fixed seat is a hollow frame body and is provided with 2 frame openings, the pushing mechanism is fixed in the fixed seat, and the fixed seat is connected with the moving block in a sliding manner through a guide post; the upper part of the inner side of the front shell and the upper part of the inner side of the rear shell are respectively provided with an acoustic fixing groove, the acoustic assembly is fixed in the acoustic fixing grooves, and the acoustic assembly is positioned above the pushing mechanism. The utility model can make the utility model act in the front/back direction by pushing the pushing mechanism, thereby being convenient for adjusting the front and back position; meanwhile, the sound assembly is arranged between the front shell and the rear shell, so that the sound function is increased, and passengers can enjoy wonderful music at the ears; simple structure, convenient manufacture, simple operation, safety, reliability and more reasonable humanized design. However, the locking of the seat headrest is realized through the insertion of a single positioning block and a rack, the front and back pulling force and the pushing force on the positioning block are large, the seat headrest can be locked to see the firmness of the positioning block, and the service life of the locking structure of the seat headrest is not ideal enough, so that the structure of the seat headrest needs to be further improved.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the headrest of the automobile seat which is stable in front-back adjustment and long in service life and can move back and forth aiming at the current state of the art.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an automobile seat headrest that instinct reciprocated, includes pillowcase, obturator, pillow frame, pillow pole be provided with fixing base, movable block, frame, reset spring, rack, button in the pillow frame the bottom of fixing base is provided with the through-hole that can pass the pillow pole the top interval of fixing base is provided with the guide shaft, the guide shaft passes the movable block, the movable block can reciprocate relative guide shaft, the pillow pole is connected on the movable block, the frame is connected on the fixing base through reset spring, the lateral part of frame is connected with the button that passes pillowcase, obturator and pillow frame, the rack is connected with frame, its characterized in that: two convex parts are arranged on the moving block, two guide shafts penetrate through the corresponding convex parts, the frame-type frame is sleeved on the first convex part, a side wall groove capable of being inserted into a rack is formed in the side wall of the first convex part, tooth-shaped protrusions capable of being meshed with the rack are arranged on the inner wall of the side wall groove, and the width of teeth of the rack is the same as the width between the teeth of the rack.

As an improvement, connecting projections can be preferably distributed at intervals on the outer wall of the frame, and a return spring is sleeved on each connecting projection.

Further improved, the middle part of the fixing seat can be preferably provided with positioning convex ribs, connecting convex columns are distributed on the positioning convex ribs at intervals, and the connecting convex columns correspond to the connecting convex columns one by one and are sleeved with corresponding reset springs.

As an improvement, a connection notch can be preferably arranged on the side wall of the fixed seat, a guide raised line is arranged on the side wall of the frame, and the guide raised line is buckled on the corresponding connection notch.

As an improvement, the rack can be detachably plugged onto the frame.

As an improvement, the button may preferably include a button member and a pressing lever, and a buffer spring connected to the pressing lever, the buffer spring being sleeved on the pressing lever, and the other end of the buffer spring being in contact with an end portion of the frame.

As an improvement, the pillow frame may preferably include a front frame body, a rear frame body, and a bottom frame body, the pillow rod passes through a frame body through hole of the bottom frame body, and the fixing seat is installed in an installation cavity formed by splicing the front frame body, the rear frame body and the bottom frame body.

As a modification, weight reducing holes may preferably be provided in the protruding portions of the moving block.

As an improvement, the pillow rod may be preferably detachably connected in the convex through hole of the moving block.

As an improvement, an adjusting groove for adjusting the height of the pillow inserted into the seat can be arranged on the side wall of the pillow at intervals.

Compared with the prior art, the utility model has the advantages that: the positioning block is omitted, the rack is directly meshed with the tooth-shaped protrusions on the moving block, the connection stability is better, the locking effect is better after the headrest moves in place, and whether the headrest is successfully locked is not only dependent on the firmness degree of the positioning block, so that the service life of the headrest is prolonged; the rack is inserted into the side wall groove, so that when the moving block moves, the rack is subjected to three limiting actions of the two guide shafts and one side wall groove, and the movement is kept stable; the pure mechanical structure is adopted to realize the forward and backward movement of the headrest, so that the failure rate of locking and unlocking is effectively reduced, and the service life of the headrest is further prolonged.

Drawings

FIG. 1 is a perspective view of an embodiment of the present utility model;

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is a further exploded view of the structure of FIG. 2;

FIG. 4 is a further exploded view of the structure of FIG. 3;

FIG. 5 is a perspective view of the mounting base associated structure of FIG. 4 without disassembly;

FIG. 6 is an exploded view of the structure of FIG. 5;

FIG. 7 is a further exploded view of FIG. 6;

FIG. 8 is a front perspective view of the moving block of FIG. 7;

FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;

fig. 10 is a perspective view of the related structure of the holder without disassembly in fig. 7.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 10, the headrest for the car seat capable of moving back and forth in this embodiment comprises a pillow case 1, a filler, a pillow frame and a pillow rod 5, wherein a fixed seat 6, a moving block 7, a frame 8, a return spring 81, a rack 82 and a button 83 are arranged in the pillow frame, a through hole capable of penetrating the pillow rod 5 is arranged at the bottom of the fixed seat 6, a guide shaft 61 is arranged at the top of the fixed seat 6 at intervals, the guide shaft 61 penetrates the moving block 7, the moving block 7 can move back and forth relative to the guide shaft 61, the pillow rod 5 is connected to the moving block 7, the frame 8 is connected to the fixed seat 6 through the return spring 81, the side part of the frame 8 is connected with the button 83 penetrating the pillow case 1, the filler and the pillow frame, and the rack 82 is connected with the frame 8.

The moving block 7 is provided with two protruding parts, the two guide shafts 61 penetrate through the corresponding protruding parts, the frame 8 is sleeved on the first protruding part 71, a side wall groove 72 capable of being inserted into the rack 82 is formed in the side wall of the first protruding part 71, a tooth-shaped protrusion 721 capable of being meshed with the rack 82 is formed in the inner wall of the side wall groove 72, and the width of the protruding teeth of the rack 82 is the same as the width between the protruding teeth. Connecting protrusions 84 are distributed on the outer wall of the frame 8 at intervals, and a return spring 81 is sleeved on each connecting protrusion 84. The middle part of the fixing seat 6 is provided with a positioning convex rib 62, the positioning convex ribs 62 are distributed with connecting convex columns 621 at intervals, and the connecting convex columns 621 are in one-to-one correspondence with the connecting convex columns 84 and sleeved with corresponding reset springs 81. The side wall of the fixing seat 6 is provided with a connection notch 63, the side wall of the frame 8 is provided with a guide convex strip 85, and the guide convex strip 85 is buckled on the corresponding connection notch 63. The rack 82 is detachably inserted into the frame 8. Weight reducing holes 73 are provided in the protruding portions of the moving block 7. The pillow 5 is detachably connected in the convex through hole 74 of the moving block 7.

The button 83 comprises a button member and a pressing rod, and a buffer spring 831, the button member is connected with the pressing rod, the buffer spring 831 is sleeved on the pressing rod, and the other end of the buffer spring 831 is in contact with the end part of the frame 8.

The pillow frame comprises a front frame body 2, a rear frame body 3 and a bottom frame body 4, wherein a pillow rod 5 penetrates through a frame body through hole of the bottom frame body 4, and a fixing seat 6 is arranged in an installation cavity formed by splicing the front frame body 2, the rear frame body 3 and the bottom frame body 4. An adjustment groove 51 for adjusting the height of the pillow inserted into the seat is provided at an interval on the side wall of the pillow 5.

The operating principle is that pressing the button can make the rack deviate from the tooth-shaped bulge to can adjust the position of headrest back and forth, loosen the button after the adjustment, reset spring drive rack resets, and the rack is in the same place with tooth-shaped bulge buckle again.

Claims (10)

1. The utility model provides a car seat headrest that can reciprocate, includes pillowcase (1), obturator, pillow frame, pillow pole (5) be provided with fixing base (6), movable block (7), frame (8), reset spring (81), rack (82), button (83) in the pillow frame the bottom of fixing base (6) is provided with the through-hole that can pass pillow pole (5) the top interval of fixing base (6) is provided with guide shaft (61), guide shaft (61) pass movable block (7), movable block (7) can reciprocate relative guide shaft (61), pillow pole (5) are connected on movable block (7), frame (8) are connected on fixing base (6) through reset spring (81), the lateral part of frame (8) is connected with button (83) that pass pillowcase (1), obturator and pillow frame, rack (82) are connected with frame (8), its characterized in that: two convex parts are arranged on the moving block (7), two guide shafts (61) penetrate through the corresponding convex parts, the frame (8) is sleeved on the first convex part (71), a side wall groove (72) capable of being inserted into a rack (82) is formed in the side wall of the first convex part (71), tooth-shaped protrusions (721) capable of being meshed with the rack (82) are arranged on the inner wall of the side wall groove (72), and the width of teeth of the rack (82) is the same as the width between the teeth.

2. The car seat headrest according to claim 1, characterized in that: connecting protrusions (84) are distributed on the outer wall of the frame (8) at intervals, and a reset spring (81) is sleeved on each connecting protrusion (84).

3. The car seat headrest according to claim 2, characterized in that: the middle part of fixing base (6) is provided with location bead (62) go up the interval distribution and have connection projection (621), connection projection (621) and connection projection (84) one-to-one and embolia corresponding reset spring (81).

4. A car seat headrest as claimed in any one of claims 1 to 3, characterised in that: the side wall of the fixing seat (6) is provided with a connection notch (63), the side wall of the frame (8) is provided with a guide raised strip (85), and the guide raised strip (85) is buckled on the corresponding connection notch (63).

5. A car seat headrest as claimed in any one of claims 1 to 3, characterised in that: the rack (82) is detachably inserted on the frame (8).

6. A car seat headrest as claimed in any one of claims 1 to 3, characterised in that: the button (83) comprises a button part and a pressing rod, and a buffer spring (831) is connected with the pressing rod, the pressing rod is sleeved with the buffer spring (831), and the other end of the buffer spring (831) is in contact with the end part of the frame (8).

7. A car seat headrest as claimed in any one of claims 1 to 3, characterised in that: the pillow frame comprises a front frame body (2), a rear frame body (3) and an underframe body (4), wherein a pillow rod (5) penetrates through a frame body through hole of the underframe body (4), and a fixing seat (6) is arranged in an installation cavity formed by splicing the front frame body (2), the rear frame body (3) and the underframe body (4).

8. A car seat headrest as claimed in any one of claims 1 to 3, characterised in that: weight reducing holes (73) are formed in the protruding portions of the moving blocks (7).

9. A car seat headrest as claimed in any one of claims 1 to 3, characterised in that: the pillow rod (5) is detachably connected in a convex through hole (74) of the moving block (7).

10. A car seat headrest as claimed in any one of claims 1 to 3, characterised in that: the side wall of the pillow rod (5) is provided with adjusting grooves (51) which can be used for adjusting the height of the pillow rod inserted into the seat at intervals.