Headrest structure on automobile seat

Abstract

A headrest structure on an automobile seat comprises a headrest frame, a headrest rod and a headrest body, the headrest frame is rotatably connected to a top cross rod of the headrest rod, the headrest body sleeves the headrest frame, the top cross rod is sleeved with a reset torsion spring, one end of the reset torsion spring is connected with the headrest frame, the other end of the reset torsion spring is connected with the headrest rod, a button containing groove is formed in the bottom of the headrest frame, and a button is arranged in the button containing groove. The button is embedded in the button containing groove, an ejector rod of the button penetrates through a through hole in the bottom of the button containing groove to abut against a limiting piece in an inner cavity of the pillow frame, the limiting piece can be connected to the inner wall of the pillow frame in an up-down sliding mode, a reset structure is arranged on the top of the limiting piece, a limiting groove is formed in the bottom of the limiting piece, and a limiting block is connected to the top cross rod. And the limiting block can be inserted into the limiting groove and can be separated from the limiting groove when the button jacks up the limiting piece. The headrest has the advantages that the button is arranged at the bottom of the headrest frame of the headrest, so that the button can be hidden, and actual requirements are met; and false unlocking triggering can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a car seat headrest, in particular to a headrest structure on a car seat. Background Art

[0002] There is a Chinese utility model patent with patent number CN202220650748.6 and the name of "An Adjustment Mechanism of a Car Seat Headrest", which discloses an adjustment mechanism of a car seat headrest, including a seat rod, a headrest cover is sleeved on the top of the seat rod, a headrest cover is fixedly installed on the right side of the headrest cover, a perforated plate is arranged inside the headrest cover, a slot is opened on the rear side of the seat rod, the surface of the perforated plate contacts the inner wall of the slot, a torsion spring 1 is arranged inside the headrest cover, one end of the torsion spring 1 is fixedly connected to the inside of the headrest cover, and the other end of the torsion spring 1 is sleeved on the surface of the perforated plate. The utility model uses the seat rod to adjust the angle of the headrest cover through the fixed rod and the torsion spring 2, and then the spring button and the torsion spring 1 fix the position of the headrest cover when not in use through the perforated plate and the slot, so as to have the advantage of being easy to adjust forward and backward, and solves the problem that the existing car seat headrest cannot be adjusted in angle during use, and it is inconvenient for users to fold the car seat headrest. However, the button of the adjustment mechanism is arranged on the side of the headrest. In the actual automobile market where headrests are produced, there is a demand for hidden buttons, that is, the buttons are arranged at the bottom of the headrest. The automobile seat headrest cannot meet this demand, so the structure of the adjustment mechanism needs to be further improved. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a headrest structure for a car seat capable of arranging a button on the bottom of the headrest in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the utility model to solve the above technical problems is as follows: the headrest structure on the automobile seat comprises a pillow frame, a pillow rod, a pillow body, the pillow frame can be rotatably connected to the top cross bar of the pillow rod, the pillow body is sleeved on the pillow frame, a reset torsion spring is sleeved on the top cross bar, one end of the reset torsion spring is connected to the pillow frame, and the other end of the reset torsion spring is connected to the pillow rod, and the utility model is characterized in that: a button accommodating groove is provided at the bottom of the pillow frame, the button is embedded in the button accommodating groove, the push rod of the button passes through the groove bottom through hole of the button accommodating groove and contacts with the limiting piece in the inner cavity of the pillow frame, the limiting piece can be slidably connected to the inner wall of the pillow frame up and down, a reset structure is provided on the top of the limiting piece, a limiting groove is provided on the bottom of the limiting piece, a limiting block is connected to the top cross bar, the limiting block can be inserted in the limiting groove and can be loosened from the limiting groove when the button lifts the limiting piece.

[0005] As an improvement, the bottom of the pillow frame may preferably be provided with a bottom through hole, a positioning seat is detachably inserted into the bottom through hole, the button accommodating groove is provided on the positioning seat, and the button is inserted into the positioning seat.

[0006] As a further improvement, a vertical guide groove may be preferably provided on the inner wall of the button receiving groove, and a guide protrusion is provided on the side wall of the push rod of the button, and the guide protrusion is arranged in the guide groove.

[0007] As a further improvement, a spring may be preferably sleeved on the top rod of the button, the bottom of the spring is connected to the button, and the top of the spring is in contact with the positioning seat.

[0008] As an improvement, the reset structure may preferably be a reset spring, and the reset spring is sleeved on the top boss of the limiting member.

[0009] As a further improvement, a spring accommodating cavity may preferably be vertically arranged on the pillow frame, and the return spring is inserted in the spring accommodating cavity.

[0010] As a further improvement, the front end of the bottom of the limiting member may preferably be provided with a contact protrusion, and the top rod of the button contacts the contact protrusion.

[0011] As a further improvement, limiting top blocks can be preferably provided on the limiting members on the left and right sides of the contact protrusion, and limiting protrusions capable of contacting the corresponding limiting top blocks are provided on the inner walls of the pillow frame on both sides of the button accommodating groove.

[0012] As a further improvement, a reinforcing strip for increasing the strength of the limiting member may preferably be embedded in the limiting member.

[0013] As an improvement, the bottom of the limit block may preferably be spoon-shaped, and the bottom of the limit block is welded to the top cross bar.

[0014] Compared with the prior art, the advantages of the utility model are: the button is arranged at the bottom of the pillow frame of the headrest, and the existence of the button cannot be seen from the top, side, front and back of the headrest, which plays the role of a "hidden" button and meets practical needs; the button is arranged at the bottom of the pillow frame, which can reduce the accidental triggering of unlocking, and the use of the headrest becomes more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the embodiment of the utility model after the pillow body is removed;

[0016] Figure 2 for Figure 1 Bottom view of

[0017] Figure 3 yes Figure 2 Sectional view along line AA;

[0018] Figure 4 yes Figure 1 A three-dimensional image after the pillow frame is cut in half;

[0019] Figure 5 yes Figure 4 The structural breakdown diagram of

[0020] Figure 6 yes Figure 5 The structural exploded view after removing the pillow frame;

[0021] Figure 7 yes Figure 6 An exploded view of the structure at another angle;

[0022] Figure 8 yes Figure 1 A magnified view of part I;

[0023] Fig. 9 yes Figure 4 Enlarged view of part II. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 9 As shown, the headrest structure on the car seat of this embodiment includes a pillow frame 1, a pillow rod 2, and a pillow body. The pillow frame 1 is rotatably connected to the top cross bar 21 of the pillow rod 2, and the pillow body is sleeved on the pillow frame 1. A return torsion spring 22 is sleeved on the top cross bar 21. There are two return torsion springs 22, and the two return torsion springs 22 are arranged opposite to each other. One end of the return torsion spring 22 is connected to the pillow frame 1, and the other end of the return torsion spring 22 is connected to the pillow rod 2.

[0026] A bottom shell 10 is arranged at the bottom of the pillow frame 1, and a button accommodating groove is arranged on the bottom shell 10, and the button 3 is embedded in the button accommodating groove, and the top rod 31 of the button 3 passes through the bottom through hole of the button accommodating groove and contacts with the limiting member 4 in the inner cavity of the pillow frame, and the limiting member 4 can be connected to the inner wall of the pillow frame slidably up and down, and a reset structure is arranged on the top of the limiting member 4, and a limiting groove 41 is arranged at the bottom of the limiting member 4, and a limiting block 23 is connected to the top cross bar 21, and the limiting block 23 can be inserted in the limiting groove 41 and can be loosened from the limiting groove 41 when the button 3 lifts the limiting member 4.

[0027] A bottom through hole 11 is provided at the bottom of the bottom shell 10, a positioning seat 12 is detachably inserted in the bottom through hole 11, the button receiving groove is provided on the positioning seat 12, and the button 3 is inserted on the positioning seat 12. A vertical guide groove is provided on the inner wall of the button receiving groove, a guide protrusion 311 is provided on the side wall of the top rod 31 of the button 3, and the guide protrusion 311 is provided in the guide groove. A spring 32 is sleeved on the top rod 31 of the button 3, the bottom of the spring 32 is connected to the button 3, and the top of the spring 32 is in contact with the positioning seat 12. The reset structure is a reset spring 5, and the reset spring 5 is sleeved on the top boss 42 of the limiter 4.

[0028] A spring accommodating cavity 13 is vertically provided on the pillow frame 1, and the reset spring 5 is inserted into the spring accommodating cavity 13. A contact protrusion 43 is provided at the bottom front end of the limit member 4, and the top rod 31 of the button 3 contacts the contact protrusion 43. Limiting top blocks 44 are respectively provided on the limit member 4 on the left and right sides of the contact protrusion 43, and limiting protrusions 14 that can contact the corresponding limiting top blocks 44 are respectively provided on the inner walls of the pillow frame on both sides of the button accommodating groove. A reinforcing strip 45 is embedded in the limit member 4 to increase the strength of the limit member. The bottom of the limit block 23 is spoon-shaped, and the bottom of the limit block is welded to the top cross bar 21.

[0029] Working principle: The limit block is stuck in the limit groove, so the pillow frame is locked and positioned relative to the pillow rod. After pressing the button, the push rod lifts the limit piece, the limit groove of the limit piece is separated from the limit block, and the reset torsion spring drives the pillow frame to rotate relative to the pillow rod. To reset, push the pillow frame to rotate relative to the pillow rod, the limit block is re-engaged in the limit groove, and the pillow frame is locked again.

Claims

1. A headrest structure for a car seat, comprising a pillow frame (1), a pillow rod (2), and a pillow body, wherein the pillow frame (1) is rotatably connected to a top cross bar (21) of the pillow rod (2), the pillow body is sleeved on the pillow frame (1), a return torsion spring (22) is sleeved on the top cross bar (21), one end of the return torsion spring (22) is connected to the pillow frame (1), and the other end of the return torsion spring (22) is connected to the pillow rod (2), characterized in that: A button receiving groove is provided at the bottom of the pillow frame (1), the button (3) is embedded in the button receiving groove, the push rod (31) of the button (3) passes through the groove bottom through hole of the button receiving groove and contacts with the limiting member (4) in the inner cavity of the pillow frame, the limiting member (4) can be connected to the inner wall of the pillow frame in an up-and-down sliding manner, the top of the limiting member (4) is provided with a reset structure, the bottom of the limiting member (4) is provided with a limiting groove (41), and a limiting block (23) is connected to the top cross bar (21), the limiting block (23) can be inserted in the limiting groove (41) and can be loosened from the limiting groove (41) when the button (3) lifts the limiting member (4).

2. The headrest structure according to claim 1, characterized in that: The bottom of the pillow frame (1) is provided with a bottom through hole (11), a positioning seat (12) is detachably inserted into the bottom through hole (11), the button receiving groove is provided on the positioning seat (12), and the button (3) is inserted into the positioning seat (12).

3. The headrest structure according to claim 2, characterized in that: A vertical guide groove is provided on the inner wall of the button accommodating groove, a guide protrusion (311) is provided on the side wall of the push rod (31) of the button (3), and the guide protrusion (311) is arranged in the guide groove.

4. The headrest structure according to claim 3, characterized in that: A spring (32) is sleeved on the top rod (31) of the button (3), the bottom of the spring (32) is connected to the button (3), and the top of the spring (32) contacts the positioning seat (12).

5. The headrest structure according to any one of claims 1 to 4, characterized in that: The reset structure is a reset spring (5), and the reset spring (5) is sleeved on the top boss (42) of the limiting member (4).

6. The headrest structure according to claim 5, characterized in that: A spring accommodating chamber (13) is vertically arranged on the pillow frame (1), and the return spring (5) is inserted into the spring accommodating chamber (13).

7. The headrest structure according to claim 5, characterized in that: A top contact protrusion (43) is provided at the front end of the bottom of the limiting member (4), and the top rod (31) of the button (3) contacts the top contact protrusion (43).

8. The headrest structure according to claim 5, characterized in that: Limiting blocks (44) are respectively arranged on the limiting member (4) on the left and right sides of the contacting protrusion (43), and limiting protrusions (14) capable of contacting the corresponding limiting blocks (44) are respectively arranged on the inner walls of the pillow frame on both sides of the button accommodating groove.

9. The headrest structure according to claim 8, characterized in that: A reinforcing strip (45) is embedded in the limiting member (4) to increase the strength of the limiting member.

10. The headrest structure according to any one of claims 1 to 4, characterized in that: The bottom of the limiting block (23) is spoon-shaped, and the bottom of the limiting block is welded to the top cross bar (21).

Images