Two-way interior adjustment mechanism for headrest of car seat

Abstract

The utility model discloses a two -way inside adjusting mechanism of car seat headrest, including shell, inner shell, headrest rod and unlocking slide piece, shell is provided with accommodating cavity, and inner shell sets up in accommodating cavity, and inner shell is provided with sleeve, headrest rod is provided with clamping slot, and headrest rod and sleeve are corresponding to set up, and headrest rod is along first direction and sleeve sliding connection in sleeve, wherein, first direction is the sliding direction of headrest rod in sleeve, unlocking slide piece and inner shell are in second direction sliding connection, and unlocking slide piece and clamping slot are corresponding to set up, wherein, first direction and second direction are perpendicular to each other, the utility model discloses less than traditional headrest assembly parts, and simple structure is easy to assemble, and after unlocking slide piece and headrest rod unlock, can lock and reset only through a spring piece.

Description

Technical Field

[0001] This utility model relates to the field of vehicle seat technology, and in particular to a two-way internal adjustment mechanism for a car seat headrest. Background Technology

[0002] Consumers' demands for comfort and functionality in automobiles are increasing daily, and headrest comfort provides the most direct feedback on passenger experience. At the same time, as one of the most important safety components in a vehicle, it must also meet relevant safety requirements. Therefore, multi-directional headrest adjustment is crucial to achieving both. Traditional four-way headrests suffer from several problems: large core components, numerous parts, cumbersome assembly, and uncontrollable stability. Furthermore, the insufficient strength of the unlocking button's locking mechanism and the difficulty in defining the boundaries of assembly challenges all urgently need to be addressed. Utility Model Content

[0003] The purpose of this invention is to provide a two-way internal adjustment mechanism for a car seat headrest to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a two-way internal adjustment mechanism for a car seat headrest, comprising:

[0005] The outer shell and the inner shell are provided with a receiving cavity, the inner shell is disposed in the receiving cavity, and the inner shell is provided with a sleeve;

[0006] The headrest rod has a slot and is correspondingly set with the sleeve. The headrest rod slides in the sleeve along a first direction, wherein the first direction is the sliding direction of the headrest rod in the sleeve.

[0007] The unlocking slider is slidably connected to the inner shell in the second direction. The unlocking slider and the slot are correspondingly set, wherein the first direction and the second direction are perpendicular to each other.

[0008] Furthermore, it also includes an elastic element, one end of which is connected to the inner shell, and the other end of which abuts against the unlocking slider.

[0009] Furthermore, it also includes:

[0010] Switch clearance hole: The housing is provided with a switch clearance hole;

[0011] The unlocking switch is connected to the unlocking slider via a switch clearance hole.

[0012] The unlocking switch includes a switch connecting part and a button part. The switch connecting part includes a claw that engages with a switch clearance hole. The button part includes a pressing end, a connecting rod, and a claw limiting block. A return spring is provided between the pressing end and the switch connecting part. The claw and the claw limiting block are correspondingly provided. When the pressing end is not pushed, the claw limiting block abuts against the claw, and the claw limiting block restricts the elastic deformation of the claw in the direction of the claw limiting block. When the pressing end is pushed, the claw limiting block disengages from the claw to release the restriction on the elastic deformation of the claw.

[0013] Furthermore, the sleeve includes an upper sleeve and a lower sleeve, and the unlocking slide is provided with a locking through hole. The distance between the two ends of the locking through hole in the second direction is greater than the diameter of the headrest rod. The locking through hole is located between the upper sleeve and the lower sleeve. When the car seat headrest is installed on the headrest rod, the headrest rod passes through the lower sleeve, the locking through hole and the upper sleeve in sequence.

[0014] Furthermore, the upper sleeve is provided with a first limiting groove, and the headrest rod is provided with a limiting pin, with the first limiting groove and the limiting pin being provided accordingly.

[0015] Furthermore, the housing includes a front housing and a rear housing, which are fastened together to form a receiving cavity.

[0016] Furthermore, the inner shell is provided with a second limiting groove, and the rear outer shell is provided with a limiting post, with the second limiting groove and the limiting post being provided accordingly.

[0017] Furthermore, the limiting post includes a third limiting groove, and the unlocking slide is provided with a limiting platform, with the third limiting groove and the limiting platform being configured accordingly.

[0018] Furthermore, the inner shell includes an outer shell clearance hole, the front outer shell is provided with a front recess, and the rear outer shell is provided with a rear recess. The front and rear recesses are provided accordingly and are located within the outer shell clearance hole.

[0019] Furthermore, the front recess includes a front mounting hole, and the rear recess includes a rear mounting hole. The front mounting hole and the rear mounting hole are respectively provided, and bolts pass through the front mounting hole and the rear mounting hole to connect the front housing and the rear housing.

[0020] Compared with the prior art, the advantages of this utility model are: this utility model has fewer assembly parts than the traditional headrest, the structure is simple and easy to assemble, and after the unlocking slider and the headrest rod are unlocked, they can be locked and reset by only a spring plate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram showing the connection between the rear outer shell, inner shell, and headrest rod structure in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram showing the connection between the inner shell and the headrest rod structure in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram showing the connection between the rear outer shell and the unlocking slider structure in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the front shell structure in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the unlocking slider structure in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram showing the connection between the outer shell and the headrest rod structure in an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram showing the connection between the unlocking switch and the switch clearance hole structure in an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram showing the positional relationship between the claw limiting block and the claw when the unlocking switch is not pressed in this embodiment of the present invention.

[0029] Figure 9 This is a schematic diagram showing the positional relationship between the locking block and the locking claw after the unlocking switch is pressed at the pressing end in this embodiment of the present invention.

[0030] In the diagram: 10, outer shell; 20, inner shell; 30, headrest rod; 40, unlocking slider; 50, elastic element; 60, unlocking switch; 11, receiving cavity; 12, switch clearance hole; 13, front outer shell; 14, rear outer shell; 21, sleeve; 22, second limiting groove; 23, outer shell clearance hole; 31, slot; 32, limiting pin; 41, locking through hole; 42, limiting platform; 61, switch connecting part; 62, button part; 131, front recessed platform; 141, limiting post; 142, rear recessed platform; 211, upper sleeve; 212, lower sleeve; 611, claw; 621, pressing end; 622, connecting rod; 623, claw limiting block; 1311, front mounting hole; 1411, third limiting groove; 1421, rear mounting hole; 2111, first limiting groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Please refer to the accompanying drawings in the specification. This utility model provides a technical solution: a two-way internal adjustment mechanism for a car seat headrest, comprising:

[0035] The outer shell 10 and the inner shell 20 are provided. The outer shell 10 is provided with a receiving cavity 11, the inner shell 20 is disposed in the receiving cavity 11, and the inner shell 20 is provided with a sleeve 21.

[0036] The headrest rod 30 is provided with a slot 31. The headrest rod 30 is correspondingly provided with the sleeve 21. The headrest rod 30 is slidably connected to the sleeve 21 in the sleeve 21 along a first direction. The first direction is the sliding direction of the headrest rod 30 in the sleeve 21.

[0037] Unlocking slider 40 is slidably connected to inner shell 20 in the second direction. Unlocking slider 40 is correspondingly set with slot 31, wherein the first direction and the second direction are perpendicular to each other.

[0038] In the above embodiment, when the unlocking slide 40 is driven into the slot 31, the unlocking slide 40 and the headrest rod 30 are in the locked position to restrict the headrest rod 30 from sliding relative to the sleeve 21 in the second direction. When the unlocking slide 40 is driven out of the slot 31, the unlocking slide 40 and the headrest rod 30 are in the unlocked position to release the restriction on the headrest rod 30 sliding relative to the sleeve 21 in the second direction.

[0039] Optionally, it also includes an elastic element 50, one end of which is connected to the inner shell 20, and the other end of which abuts against the unlocking slide 40.

[0040] In the above embodiment, when the unlocking slide 40 is moved out of the slot 31, the unlocking slide 40 and the headrest rod 30 are in the unlocked position. The elastic element 50 is compressed by the unlocking slide 40 to generate elastic potential energy, and at the same time, the restriction of the headrest rod 30 sliding relative to the sleeve 21 in the second direction is released. When the driving force for the unlocking slide 40 to move out of the slot 31 is released, the elastic element 50 releases elastic potential energy and drives the unlocking slide 40 to engage with the slot 31, so that the unlocking slide 40 and the headrest rod 30 are in the locked position, and the car seat headrest and the headrest rod 30 are locked. Preferably, the elastic element 50 is a spring sheet.

[0041] Optionally, it also includes:

[0042] Switch clearance hole 12; the housing 10 is provided with a switch clearance hole 12.

[0043] Unlock switch 60 is connected to unlock slider 40 via switch clearance hole 12.

[0044] The unlocking switch 60 includes a switch connecting part 61 and a button part 62. The switch connecting part 61 includes a claw 611, which engages with the switch clearance hole 12. The button part 62 includes a pressing end 621, a connecting rod 622, and a claw limiting block 623. A return spring 63 is provided between the pressing end 621 and the switch connecting part 61. The claw 611 and the claw limiting block 623 are correspondingly arranged. Figure 8 As shown, when the pressing end 621 is not pushed, the claw limiting block 623 abuts against the claw 611, and the claw limiting block 623 restricts the claw 611 from elastically deforming in the direction of the claw limiting block 623, as... Figure 9 As shown, when the pressing end 621 is pushed, the claw limiting block 623 disengages from the claw 611 to release the restriction of the elastic deformation of the claw 611.

[0045] In the above embodiment, pressing the unlock switch 60 drives the unlock slider 40 to move out of the slot 31. After releasing the press of the unlock switch 60, the elastic element 50 releases its elastic potential energy, driving the unlock slider 40 to engage with the slot 31, and the unlock switch 60 resets. On the other hand, as... Figure 8 As shown, when the pressing end 621 is not pressed, the pawl limiting block 623 restricts the elastic deformation of the pawl 611, therefore the pawl 611 cannot be engaged into the switch clearance hole 12, as... Figure 9 As shown, after pressing the pressure end 621, the claw limiting block 623 extends in the pressing direction, and the pressure end 621 no longer interferes with the elastic deformation of the claw 611. At this time, the claw can be engaged in or pulled out of the switch clearance hole 12. Furthermore, this structure is beneficial for completing the insertion and removal test of the button strength by the OEM.

[0046] Optionally, the sleeve 21 includes an upper sleeve 211 and a lower sleeve 212. The unlocking slide 40 is provided with a locking through hole 41. The distance between the two ends of the locking through hole 41 in the second direction is greater than the diameter of the headrest rod 30. The locking through hole 41 is located between the upper sleeve 211 and the lower sleeve 212. When the car seat headrest is installed on the headrest rod 30, the headrest rod 30 passes through the lower sleeve 212, the locking through hole 41 and the upper sleeve 211 in sequence.

[0047] In the above embodiment, the elastic element 50 drives the unlocking slide 40 to engage one end of the locking through hole 41 near the slot 31 into the slot 31. When a pressing force is applied to the unlocking switch 60, the unlocking switch 60 pushes the unlocking slide 40 to move. When the other end of the locking through hole 41 abuts against the headrest rod 30, the stroke of the unlocking slide 40 is limited by the headrest rod 30. Preferably, the locking through hole 41 at both ends of the unlocking slide 40 is a reinforcing iron sheet to ensure the structural strength of the contact position between the slot 31 and the unlocking slide 40 when locked.

[0048] Optionally, the upper sleeve 211 is provided with a first limiting groove 2111, and the headrest rod 30 is provided with a limiting pin 32, with the first limiting groove 2111 and the limiting pin 32 being provided accordingly.

[0049] In the above embodiment, as the headrest rod 30 moves within the upper sleeve 211, the limiting pin 32 limits the movement of the headrest rod 30 within the sleeve 21 by abutting against both ends of the first limiting groove 2111.

[0050] Optionally, the housing 10 includes a front housing 13 and a rear housing 14, which are fastened together to form a receiving cavity 11.

[0051] Optionally, the inner shell 20 is provided with a second limiting groove 22, and the rear shell 14 is provided with a limiting post 141, with the second limiting groove 22 and the limiting post 141 being provided accordingly.

[0052] In the above embodiments, the inner shell 20 is constrained to a preset position within the outer shell 10 by the cooperation between the second limiting groove 22 and the limiting post 141.

[0053] Optionally, the limiting post 141 includes a third limiting groove 1411, and the unlocking slide 40 is provided with a limiting platform 42, with the third limiting groove 1411 and the limiting platform 42 being configured accordingly.

[0054] In the above embodiments, the inner shell 20 and the third limiting groove 1411 constrain the movement of the unlocking slider 40 in directions other than the second direction, thereby increasing the stability of the unlocking slider 40 in the second direction.

[0055] Optionally, the inner shell 20 includes an outer shell clearance hole 23, the front outer shell 13 is provided with a front recess 131, and the rear outer shell 14 is provided with a rear recess 142. The front recess 131 and the rear recess 142 are provided accordingly, and the front recess 131 and the rear recess 142 are provided within the outer shell clearance hole 23.

[0056] Furthermore, the front recess 131 includes a front mounting hole 1311, and the rear recess 142 includes a rear mounting hole 1421. The front mounting hole 1311 and the rear mounting hole 1421 are respectively provided, and bolts pass through the front mounting hole 1311 and the rear mounting hole 1421 to connect the front housing 13 and the rear housing 14.

[0057] In the above embodiments, the length of the bolts fixing the front housing 13 and the rear housing 14 is reduced by the corresponding arrangement of the front recess 131 and the rear recess 142.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A two-way internal adjustment mechanism for a car seat headrest, characterized in that, include: The outer shell (10) and the inner shell (20) are provided with a receiving cavity (11), the inner shell (20) is disposed in the receiving cavity (11), and the inner shell (20) is provided with a sleeve (21); A headrest rod (30) is provided with a slot (31). The headrest rod (30) is correspondingly provided with a sleeve (21). The headrest rod (30) is slidably connected to the sleeve (21) in the sleeve (21) along a first direction. The first direction is the sliding direction of the headrest rod (30) in the sleeve (21). Unlocking slider (40) is slidably connected to inner shell (20) in the second direction. Unlocking slider (40) and slot (31) are correspondingly set, wherein the first direction and the second direction are perpendicular to each other.

2. The two-way internal adjustment mechanism for a car seat headrest according to claim 1, characterized in that, It also includes an elastic element (50), one end of which is connected to the inner shell (20), and the other end abuts against the unlocking slider (40).

3. The two-way internal adjustment mechanism for a car seat headrest according to claim 1, characterized in that, Also includes: Switch clearance hole (12), the outer casing (10) is provided with a switch clearance hole (12); Unlock switch (60), the unlock switch (60) is connected to the unlock slider (40) through the switch clearance hole (12); The unlocking switch (60) includes a switch connecting part (61) and a button part (62). The switch connecting part (61) includes a claw (611), which engages with the switch clearance hole (12). The button part (62) includes a pressing end (621), a connecting rod (622), and a claw limiting block (623). A return spring (63) is provided between the pressing end (621) and the switch connecting part (61). 1) Corresponding to the claw limiting block (623), when the pressing end (621) is not pushed, the claw limiting block (623) abuts against the claw (611), and the claw limiting block (623) restricts the claw (611) from elastically deforming in the direction of the claw limiting block (623). When the pressing end (621) is pushed, the claw limiting block (623) disengages from the claw (611) to release the restriction on the elastic deformation of the claw (611).

4. The two-way internal adjustment mechanism for a car seat headrest according to claim 1, characterized in that, The sleeve (21) includes an upper sleeve (211) and a lower sleeve (212). The unlocking slide (40) is provided with a locking through hole (41). The distance between the two ends of the locking through hole (41) in the second direction is greater than the diameter of the headrest rod (30). The locking through hole (41) is located between the upper sleeve (211) and the lower sleeve (212). When the car seat headrest is installed on the headrest rod (30), the headrest rod (30) passes through the lower sleeve (212), the locking through hole (41) and the upper sleeve (211) in sequence.

5. The two-way internal adjustment mechanism for a car seat headrest according to claim 4, characterized in that, The upper sleeve (211) is provided with a first limiting groove (2111), and the headrest rod (30) is provided with a limiting pin (32). The first limiting groove (2111) and the limiting pin (32) are provided accordingly.

6. The two-way internal adjustment mechanism for a car seat headrest according to claim 1, characterized in that, The outer shell (10) includes a front outer shell (13) and a rear outer shell (14), which are fastened together to form a receiving cavity (11).

7. The two-way internal adjustment mechanism for a car seat headrest according to claim 6, characterized in that, The inner shell (20) is provided with a second limiting groove (22), and the rear shell (14) is provided with a limiting post (141). The second limiting groove (22) and the limiting post (141) are provided accordingly.

8. The two-way internal adjustment mechanism for a car seat headrest according to claim 7, characterized in that, The limiting post (141) includes a third limiting groove (1411), and the unlocking slide (40) is provided with a limiting platform (42). The third limiting groove (1411) and the limiting platform (42) are respectively set.

9. A two-way internal adjustment mechanism for a car seat headrest according to claim 6, characterized in that, The inner shell (20) includes an outer shell clearance hole (23), the front outer shell (13) is provided with a front recess (131), and the rear outer shell (14) is provided with a rear recess (142). The front recess (131) and the rear recess (142) are provided accordingly, and the front recess (131) and the rear recess (142) are provided in the outer shell clearance hole (23).

10. A two-way internal adjustment mechanism for a car seat headrest according to claim 9, characterized in that, The front recess (131) includes a front mounting hole (1311), and the rear recess (142) includes a rear mounting hole (1421). The front mounting hole (1311) and the rear mounting hole (1421) are respectively provided, and bolts pass through the front mounting hole (1311) and the rear mounting hole (1421) to connect the front housing (13) and the rear housing (14).

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