Seat angle adjuster easy to assemble

Abstract

The utility model provides a seat angle adjuster easy to assemble, which comprises a seat backrest, a seat cushion and a second rotating shaft, the seat backrest is rotatably connected to the second rotating shaft, the seat cushion is fixedly connected to the second rotating shaft, and the seat angle adjuster easy to assemble is characterized in that backrest side plates are sleeved on two sides of the seat backrest; a sleeving cavity is formed in the side, close to the seat backrest, of the backrest side plate, a rotating boss is fixedly arranged at the end, close to the seat cushion, of the sleeving cavity, a locking assembly and an unlocking assembly are arranged on one side of the rotating boss, and the locking assembly comprises a second transmission shaft and a plurality of locking rods; the locking rod penetrates through the rotating boss and the second transmission shaft to reach the second rotating shaft. According to the scheme, the locking assembly and the second rotating shaft are unlocked through the rotatable unlocking assembly, the seat backrest and the seat cushion can relatively rotate or be locked according to rotation of the unlocking assembly, and therefore the purpose of improving the adjusting efficiency of the seat angle adjuster is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle adjusters, in particular to an easy-to-assemble seat angle adjuster. Background Art

[0002] A seat recliner is a device used to adjust the angle of a car seat, aiming to provide a more comfortable riding environment for the driver or passenger. With the development of the automotive industry, the design of seat recliners pays more and more attention to user experience and installation convenience.

[0003] For example, a Chinese patent discloses a "angle adjuster" (patent number: CN107444202B), which includes a ratchet and a guide installed in an axial direction; and a locking mechanism, which is configured to lock the relative rotation between the ratchet and the guide by engaging in a radial direction, and the locking mechanism includes a plurality of rod-shaped bodies, which are configured to be supported by the guide in a circumferential direction and have outer circumferential teeth, which are configured to engage with inner circumferential teeth formed on the ratchet as the rod-shaped body is pushed outward in a radial direction for movement, and the plurality of rod-shaped bodies include specific rod-shaped bodies. The above patent has the advantage of being lockable at any angle.

[0004] However, the locking process of the above solution is relatively complicated, and there are many types of parts, which are difficult to disassemble and repair. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an easy-to-assemble seat recliner, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: an easy-to-assemble seat angle adjuster, including a seat back, a seat cushion and a second rotating shaft, the seat back is rotatably connected to the second rotating shaft, and the seat cushion is fixedly connected to the second rotating shaft, characterized in that: backrest side panels are sleeved on both sides of the seat back, a sleeve cavity is opened on the side of the backrest side panel close to the seat back, a rotating boss is fixedly provided on one end of the sleeve cavity close to the seat cushion, a locking assembly and an unlocking assembly are provided on one side of the rotating boss, the locking assembly includes a second transmission shaft and a plurality of locking rods, and the locking rods pass through the rotating boss and the second transmission shaft to the second rotating shaft.

[0009] Preferably, the second transmission shaft is provided with a first sliding groove and a second sliding groove, the first sliding groove passes through the rotating boss and the second transmission shaft, a limiting platform is slidably connected in the second sliding groove, the limiting platform is fixedly connected with a spring, one end of the spring away from the limiting platform is fixedly connected to a side wall of the second sliding groove, the limiting platform is fixedly connected to the outer cylindrical surface of the locking rod, and the locking rod is slidably connected to the first sliding groove.

[0010] Preferably, the unlocking assembly includes a first input shaft and a plurality of drive blocks, the drive block is fixedly connected to one end of the first input shaft close to the locking rod, the first input shaft is rotatably sleeved on the second rotating shaft, the inner surface radius of the drive block is equal to the radius of the second rotating shaft, and the end of the drive block away from the second rotating shaft is provided with a chamfer.

[0011] Preferably, a second input shaft is sleeved on the second rotating shaft, and the second input shaft is arranged close to the side of the backrest side plate away from the seat back, and a first transmission shaft is rotatably arranged in a rotating boss away from the second transmission shaft, and the first transmission shaft is fixedly connected to the second rotating shaft.

[0012] Preferably, an end surface of the locking rod close to the second rotating shaft is provided with a curved surface, and an outer circumferential surface of the locking rod close to one end of the second rotating shaft is provided with an arc.

[0013] Preferably, a first rotating shaft is provided through one end of the backrest side plate away from the seat cushion, the first rotating shaft is provided through two backrest side plates, and nuts are respectively threadedly connected to both ends of the first rotating shaft.

[0014] (III) Beneficial effects

[0015] The utility model provides an easy-to-assemble seat angle adjuster, which has the following beneficial effects:

[0016] 1. This solution unlocks the locking assembly from the second rotating shaft through a rotatable unlocking assembly, so that the seat back and the seat cushion can be relatively rotated or locked according to the rotation of the unlocking assembly, thereby achieving the purpose of improving the adjustment efficiency of the seat recliner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the disassembly structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the locking assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the exploded structure of the locking component and the unlocking component in the utility model.

[0021] In the figure: 11, seat back; 12, seat cushion; 13, backrest side plate; 14, first rotating shaft; 15, nut; 16, second rotating shaft; 17, sleeve cavity; 18, rotating boss; 19, first transmission shaft; 21, second transmission shaft; 22, first sliding groove; 23, second sliding groove; 24, locking rod; 25, limiting platform; 26, spring; 27, first input shaft; 28, drive block; 29, second input shaft. DETAILED DESCRIPTION

[0022] The utility model provides an easy-to-assemble seat recliner, such as Figure 1-4 As shown, it includes a seat back 11, a seat cushion 12, a backrest side plate 13, a first rotating shaft 14, a nut 15, a second rotating shaft 16, a sleeve cavity 17, a rotating boss 18, a first transmission shaft 19, a second transmission shaft 21, a first sliding groove 22, a second sliding groove 23, a locking rod 24, a limiting platform 25, a spring 26, a first input shaft 27, a driving block 28, and a second input shaft 29.

[0023] like Figure 1-4 As shown, the seat back 11 is rotatably connected to the second rotating shaft 16, and the seat cushion 12 is fixedly connected to the second rotating shaft 16, and is characterized in that: back side panels 13 are sleeved on both sides of the seat back 11, and a sleeve cavity 17 is opened on the side of the back side panel 13 close to the seat back 11, and a rotating boss 18 is fixedly provided on one end of the sleeve cavity 17 close to the seat cushion 12, and a locking assembly and an unlocking assembly are provided on one side of the rotating boss 18, and the locking assembly includes a second transmission shaft 21 and a plurality of locking rods 24, and the locking rods 24 pass through the rotating boss 18 and the second transmission shaft 21 to the second rotating shaft 16.

[0024] It is worth noting that a gap is provided between the rotating boss 18 and the backrest side plate 13 .

[0025] An arc surface is provided on one end face of the locking rod 24 close to the second rotating shaft 16, and an arc is provided on the outer cylindrical surface of the locking rod 24 close to one end of the second rotating shaft 16. The first rotating shaft 14 is penetrated by the end of the backrest side plate 13 away from the seat cushion 12. The first rotating shaft 14 penetrates the two backrest side plates 13, and nuts 15 are respectively threadedly connected at both ends of the first rotating shaft 14.

[0026] The second transmission shaft 21 is provided with a first sliding groove 22 and a second sliding groove 23. The first sliding groove 22 penetrates the rotating boss 18 and the second transmission shaft 21. The second sliding groove 23 is slidably connected to a limiting platform 25. The limiting platform 25 is fixedly connected with a spring 26. One end of the spring 26 away from the limiting platform 25 is fixedly connected to a side wall of the second sliding groove 23. The limiting platform 25 is fixedly connected to the outer cylindrical surface of the locking rod 24. The locking rod 24 is slidably connected to the first sliding groove 22.

[0027] The unlocking assembly includes a first input shaft 27 and a plurality of drive blocks 28. The drive block 28 is fixedly connected to one end of the first input shaft 27 close to the locking rod 24. The first input shaft 27 is rotatably sleeved on the second rotating shaft 16. The inner circular surface radius of the drive block 28 is equal to the radius of the second rotating shaft 16. The end of the drive block 28 away from the second rotating shaft 16 is provided with a chamfer.

[0028] A second input shaft 29 is sleeved on the second rotating shaft 16 and is arranged close to the side of the backrest side plate 13 away from the seat back 11. A first transmission shaft 19 is rotatably arranged in the rotating boss 18 away from the side of the second transmission shaft 21. The first transmission shaft 19 is fixedly connected to the second rotating shaft 16.

[0029] When the seat angle is adjusted in this scheme, first, the passenger rotates the first input shaft 27, and the first input shaft 27 drives the driving block 28 to rotate around the second rotating shaft 16 as the axis. The chamfer of the driving block 28 contacts the curvature of the outer cylindrical surface of the locking rod 24, and the driving block 28 pushes the locking rod 24 to slide in the direction away from the second rotating shaft 16.

[0030] Then, the locking rod 24 drives the limiting platform 25 to slide relative to the second sliding groove 23 in the direction away from the second rotating shaft 16, and the limiting platform 25 compresses the spring 26. The arc surface of the locking rod 24 is separated from the second rotating shaft 16, and the rotating boss 18 can rotate relative to the second rotating shaft 16. At this time, the second input shaft 29 is rotated, and the second input shaft 29 drives the backrest side plate 13 and the seat cushion 12 to rotate relative to each other, and the backrest side plate 13 drives the seat back 11 and the seat cushion 12 to rotate relative to each other.

[0031] Finally, the first input shaft 27 is rotated again, and the first input shaft 27 drives the driving block 28 to rotate around the second rotating shaft 16, and the driving block 28 is disengaged from the locking rod 24. The elastic potential energy of the spring 26 generated by the compression of the spring 26 by the limiting platform 25 is released, and the spring 26 pushes the limiting platform 25 to slide in the direction close to the second rotating shaft 16. The limiting platform 25 drives the locking rod 24 to slide until the arc surface of the locking rod 24 is tightly against the second rotating shaft 16, so that the seat back 11 and the seat cushion 12 cannot rotate relative to each other.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easy-to-assemble seat recliner, comprising a seat back (11), a seat cushion (12) and a second rotating shaft (16), wherein the seat back (11) is rotatably connected to the second rotating shaft (16), and the seat cushion (12) is fixedly connected to the second rotating shaft (16), characterized in that: Both sides of the seat back (11) are sleeved with back side panels (13); a sleeve cavity (17) is provided on the side of the back side panel (13) close to the seat back (11); a rotating boss (18) is fixedly provided at one end of the sleeve cavity (17) close to the seat cushion (12); a locking assembly and an unlocking assembly are provided on one side of the rotating boss (18); the locking assembly comprises a second transmission shaft (21) and a plurality of locking rods (24); the locking rods (24) penetrate the rotating boss (18) and the second transmission shaft (21) to the second rotating shaft (16).

2. The easy-to-assemble seat recliner according to claim 1, characterized in that: The second transmission shaft (21) is provided with a first sliding groove (22) and a second sliding groove (23), the first sliding groove (22) passes through the rotating boss (18) and the second transmission shaft (21), the second sliding groove (23) is slidably connected with a limiting platform (25), the limiting platform (25) is fixedly connected with a spring (26), one end of the spring (26) away from the limiting platform (25) is fixedly connected to a side wall of the second sliding groove (23), the limiting platform (25) is fixedly connected to the outer cylindrical surface of the locking rod (24), and the locking rod (24) is slidably connected to the first sliding groove (22).

3. The easy-to-assemble seat recliner according to claim 2, characterized in that: The unlocking assembly comprises a first input shaft (27) and a plurality of driving blocks (28), wherein the driving block (28) is fixedly connected to one end of the first input shaft (27) close to the locking rod (24), the first input shaft (27) is rotatably sleeved on the second rotating shaft (16), the inner circumferential surface radius of the driving block (28) is equal to the radius of the second rotating shaft (16), and one end of the driving block (28) away from the second rotating shaft (16) is provided with a chamfer.

4. The easy-to-assemble seat recliner according to claim 2, characterized in that: A second input shaft (29) is sleeved on the second rotating shaft (16), and the second input shaft (29) is arranged close to the side of the backrest side plate (13) away from the seat back (11). A first transmission shaft (19) is rotatably arranged in the rotating boss (18) away from the side of the second transmission shaft (21), and the first transmission shaft (19) is fixedly connected to the second rotating shaft (16).

5. The easy-to-assemble seat recliner according to claim 1, characterized in that: An end surface of the locking rod (24) close to the second rotating shaft (16) is provided with an arc surface, and an outer circumferential surface of the locking rod (24) close to one end of the second rotating shaft (16) is provided with an arc.

6. The easy-to-assemble seat recliner according to claim 1, characterized in that: A first rotating shaft (14) is provided through one end of the backrest side plate (13) away from the seat cushion (12); the first rotating shaft (14) is provided through the two backrest side plates (13); and nuts (15) are respectively threadedly connected at both ends of the first rotating shaft (14).

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