Seat backrest angle adjusting mechanism, adjustable seat and vehicle

Abstract

The utility model relates to a seat backrest angle adjusting mechanism, an adjustable seat and a vehicle, the seat backrest angle adjusting mechanism comprises an adjusting assembly, a sliding assembly and a locking assembly, one end of the locking assembly is connected with a backrest framework of the seat; the adjusting assembly at least comprises a driving gear, the sliding assembly comprises an adjusting toothed plate and a sliding rail, the other end of the locking assembly is connected with the adjusting toothed plate, the adjusting toothed plate is arranged on the sliding rail in a sliding mode, and the adjusting toothed plate is meshed with the driving gear. The driving gear in the adjusting assembly rotates to drive the adjusting toothed plate to move on the sliding rail, the adjusting toothed plate moves to drive the locking assembly to move along the sliding rail, the locking assembly is connected with the backrest framework, then the seat backrest is adjusted, the adjusting structure only needs to meet the stroke length of the driving gear, the needed space is small, and the adjusting structure is convenient to use. In addition, the adjusting stroke can be determined by the shape and the length of the adjusting toothed plate, and adjustment of various angles is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of adjustable seats, in particular to a seat back angle adjustment mechanism, an adjustable seat and a vehicle. Background Art

[0002] For seats, especially automotive seats, in order to improve comfort and provide users with a more comfortable and relaxing riding experience, the seats are generally set as backrest adjustable structures. When adjusting the rear seats, in the existing backrest adjustment mechanism, the angle adjustment mechanism and the backrest rotation mechanism are arranged on the same transmission rack, and the rotation is transmitted to the seat backrest to realize the angle adjustment of the seat. However, in this adjustment method, the transmission rack needs to meet the rotation paths of the two rotation mechanisms, and the required rack is relatively long. Therefore, the required installation space is large, and it is easy to occupy the layout space of surrounding parts. Summary of the Utility Model

[0003] In order to solve the technical problem that the above-mentioned seat adjustment mechanism has a large requirement for installation space, the utility model provides a seat back angle adjustment mechanism, which includes an adjustment component, a sliding component and a locking component. One end of the locking component is connected to the backrest frame of the seat, and the lower end of the backrest frame is rotatably connected to the vehicle frame; the adjustment component at least includes a driving gear, the sliding component includes an adjustment tooth plate and a slide rail, the other end of the locking component is connected to the adjustment tooth plate, the adjustment tooth plate is slidably arranged on the slide rail, and the adjustment tooth plate is meshed with the driving gear.

[0004] Further, stoppers for restricting the adjustment tooth plate from falling off are arranged at both ends of the slide rail.

[0005] Further, the slide rail is fixed on the vehicle frame.

[0006] Further, the adjustment component further includes an adjustment handle and a height adjustment pump. The adjustment handle is rotatably installed on the height adjustment pump, and the height adjustment pump is connected to the driving gear.

[0007] Further, the height adjustment pump includes an output shaft. One end of the output shaft is connected to the driving gear, and at least one protrusion is arranged along the circumferential direction of the output shaft.

[0008] Further, the adjustment handle includes an adjustment head and a handle part. A through hole is opened in the middle of the adjustment head. The other end of the output shaft penetrates through the through hole. At least one push rod is arranged along the circumferential direction of the adjustment head, and the protrusion and the push rod are arranged in a circumferentially offset abutting manner.

[0009] Further, it further includes a height adjustment pump fixing bracket. The height adjustment pump fixing bracket is fixed on the vehicle frame, and the height adjustment pump is fixedly installed on the height adjustment pump fixing bracket.

[0010] Furthermore, the height-adjusting pump and the adjusting tooth plate are respectively arranged on both sides of the height-adjusting pump fixing bracket. A through hole is arranged in the middle of the height-adjusting pump fixing bracket, and the driving gear passes through the through hole and meshes with the adjusting tooth plate.

[0011] Another object of this embodiment is to provide an adjustable seat, which is provided with the above-mentioned seat back angle adjusting mechanism.

[0012] Another object of this embodiment is to provide a vehicle, which is provided with the above-mentioned seat back angle adjusting mechanism.

[0013] The above technical solution of the present invention has the following advantages compared with the prior art:

[0014] (1) By adjusting the rotation of the driving gear in the adjusting assembly, the adjusting tooth plate is driven to move on the slide rail. The movement of the adjusting tooth plate drives the locking assembly to also move along the slide rail. Since the locking assembly is connected to the backrest frame, the adjustment of the seat back is realized. The adjustment structure of this proposal only needs to meet the stroke length of the driving gear, and the required space is small. In addition, the adjustment stroke can be determined by the shape and length of the adjusting tooth plate, which is convenient for various angle adjustments;

[0015] (2) Using a manual adjustment mechanism reduces the cost of seat adjustment;

[0016] (3) The adjustment handle, height-adjusting pump and adjusting tooth plate are arranged on both sides of the fixing bracket. On the one hand, it is convenient to fix the adjusting assembly, and on the other hand, it can further reduce the occupied space. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram of the seat back angle adjusting mechanism of the present invention;

[0019] Figure 2 is a side view of the seat back angle adjusting mechanism of the present invention;

[0020] Figure 3 is a position diagram of the adjusting assembly of the seat back angle adjusting mechanism of the present invention before adjustment;

[0021] Figure 4 is a position diagram of the adjusting assembly of the seat back angle adjusting mechanism of the present invention after adjustment;

[0022] Figure 5 is a schematic structural diagram of an adjustment component of the seat back angle adjustment mechanism of the present utility model;

[0023] Figure 6 is a front view of the adjustment component of the seat back angle adjustment mechanism of the present utility model;

[0024] Figure 7 is a schematic structural diagram of the adjustable seat of the present utility model.

[0025] Explanation of reference numerals in the specification drawings: adjustment component - 1; sliding component - 2; locking component - 3; driving gear - 4; adjustment toothed plate - 5; slide rail - 6; adjustment handle - 7; heightening pump - 8; push rod - 9; heightening pump fixing bracket - 10; adjustment head - 11; handle part - 12; through hole - 13; output shaft - 14; protruding part - 15; locking hook - 16; backrest lock - 17; backrest skeleton - 18. Detailed implementation manners

[0026] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model in conjunction with the specification drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0029] The present utility model is described in detail in combination with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general ratio, and the schematic diagrams are only examples and should not limit the protection scope of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0030] Meanwhile, in the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper, lower, left, right, inner, and outer" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first, second, or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] Unless otherwise clearly defined and limited in the present invention, the terms "installation, connection, and coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection, an electrical connection, or a direct connection, or it may be indirectly connected through an intermediate medium, or it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Embodiment 1

[0033] Next, refer to Figures 1 to 5 to describe a seat back angle adjustment mechanism according to an embodiment of the present invention, which includes an adjustment assembly 1, a sliding assembly 2, and a locking assembly 3. The adjustment assembly 1 includes at least a driving gear 4. The sliding assembly 2 includes an adjustment toothed plate 5 and a slide rail 6. The adjustment toothed plate 5 is slidably arranged on the slide rail 6. The adjustment toothed plate 5 meshes with the driving gear 4. After the driving gear 4 rotates, the rotation is transmitted to the adjustment toothed plate 5. The adjustment toothed plate 5 slides on the slide rail 6. And one end of the locking assembly 3 is connected to the backrest frame 18 of the seat. The lower end of the backrest frame 18 is rotatably connected to the vehicle frame. The other end of the locking assembly 3 is connected to the adjustment toothed plate 5. When the adjustment toothed plate 5 slides on the slide rail 6, the locking assembly 3 transmits the sliding to the backrest frame 18. The backrest frame 18 drives the seat back to move. The lower end of the backrest frame 18 is fixed. The displacement of the backrest frame 18 is the adjustment of the backrest angle. The backrest angle adjustment method in this embodiment refers to Figure 3 and Figure 4 , directly converts the displacement of the adjustment toothed plate 5 into the displacement of the seat back, has little requirement for the layout space, will not occupy the layout space of the surrounding components on the vehicle, and the adjustment is rapid. When adjusted to the appropriate position, stop rotating the driving gear 4. Since the driving gear 4 meshes with the adjustment toothed plate 5, when the driving gear 4 stops moving, the interaction between the gears of the driving gear 4 and the adjustment toothed plate 5 can also ensure the locking effect.

[0034] In one embodiment, both ends of the slide rail 6 are provided with stop points for restricting the detachment of the adjustment toothed plate 5, and to prevent the adjustment toothed plate 5 from falling off the slide rail 6. In this embodiment, the stop points at both ends of the slide rail 6 can be slide rail stoppers, or protrusions can be provided on the tracks at both ends of the slide rail. The stop points can be any physical structure capable of restricting the detachment of the adjustment toothed plate 5, and are not limited herein.

[0035] In one embodiment, the slide rail 6 is fixed to the vehicle frame. In this embodiment, the slide rail 6 can be welded to the vehicle frame so that the displacement of the adjustment toothed plate 5 is transmitted to the backrest frame 18 to the greatest extent.

[0036] In one embodiment, the adjustment assembly 1 further includes an adjustment handle 7 and a height adjustment pump 8. The adjustment handle 7 is rotatably mounted on the height adjustment pump 8. The height adjustment pump 8 is connected to the drive gear 4. By rotating the adjustment handle 7, the height adjustment pump 8 can be driven to rotate, further driving the rotation of the drive gear 4. Using a manual adjustment structure reduces the adjustment cost.

[0037] In one embodiment, referring to Figure 5 and 6 , the adjustment handle 7 includes an adjustment head 11 and a handle part 12. A through hole 13 is provided in the middle of the adjustment head 11. The adjustment head 11 is connected to the height adjustment pump 8 through the through hole 13. At least one push rod 9 is arranged along the circumferential direction of the adjustment head 11. The height adjustment pump 8 includes an output shaft 14. One end of the output shaft 14 is connected to the drive gear 4, and the other end passes through the through hole 13. At least one protrusion 15 is arranged along the circumferential direction of the output shaft 14. The protrusion 15 and the push rod 9 are arranged in circumferential misaligned contact. The adjustment handle 7 is rotatably mounted on one end of the output shaft 14 through the through hole 13. The user drives the adjustment head 11 to rotate on the output shaft 14 through the handle part 12. When the adjustment head 11 rotates, the push rod 9 pushes the protrusion 15 to move circumferentially, thereby driving the output shaft 14 to rotate. One end of the output shaft 14 is connected to the drive gear 4, driving the rotation of the drive gear 4. It should be noted that referring to Figure 3 , at least one limiting port is further provided at one end of the adjustment handle 7. The shape and size of the limiting port and the installation position of the protruding structure are matched, further ensuring the transmission of rotation.

[0038] In one embodiment, a height adjustment pump fixing bracket 10 is further included. The height adjustment pump fixing bracket 10 is fixed to the vehicle frame, and the height adjustment pump 8 is fixedly mounted on the height adjustment pump fixing bracket 10. In this embodiment, the height adjustment pump 6 is screwed to the bracket welded to the vehicle body through the height adjustment pump fixing bracket 10.

[0039] In one embodiment, the height-adjusting pump 8 and the adjusting toothed plate 5 are respectively arranged on both sides of the height-adjusting pump fixing bracket 10. A through hole is arranged in the middle of the height-adjusting pump fixing bracket 10. The driving gear 4 passes through the through hole and meshes with the adjusting toothed plate 5. By arranging the adjusting toothed plate 5, the adjusting handle 7 and the height-adjusting pump 8 on both sides, one side is used to transmit the adjusting rotation, and the other side drives the seat back to move, which can further avoid occupying the layout space of surrounding parts.

[0040] It should be noted that in this embodiment, the locking assembly 3 includes a locking hook 16 and a backrest lock 17. The locking hook 16 is fixedly connected to the adjusting toothed plate 5, and the backrest lock 17 is arranged on the backrest frame 18. The locking hook 16 is locked with the backrest lock 17. In this embodiment, the backrest lock 17 is screwed on the backrest frame 18, the locking hook 16 is locked with the backrest lock 17, and the locking hook 16 is welded to the adjusting toothed plate 5, so as to realize the rotation of the backrest frame 18. In this embodiment, the locking hook 16 is a U-shaped lock.

[0041] Embodiment Two

[0042] Different from the above embodiment, referring to Figure 7 , this embodiment provides an adjustable seat, including a backrest frame 18 and the above-mentioned seat back angle adjusting mechanism. The lower end of the backrest frame 18 is installed on the lower vehicle body. The adjustable seat in this embodiment reduces the cost of the seat adjusting structure, reduces the required occupied space, and is also convenient for adjusting at various angles.

[0043] Embodiment Three

[0044] Different from the above embodiment, this embodiment provides a vehicle, including the above-mentioned seat back angle adjusting mechanism. The vehicle in this embodiment reduces the cost of the seat adjusting structure, reduces the required occupied space, and is also convenient for adjusting at various angles.

[0045] Note that the above are only the preferred embodiments of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A seat back angle adjustment mechanism, characterized in that, It includes an adjustment component (1), a sliding component (2) and a locking component (3). One end of the locking component (3) is connected to the backrest frame (18) of the seat, and the lower end of the backrest frame (18) is rotatably connected to the vehicle frame. The adjustment component (1) at least includes a driving gear (4). The sliding component (2) includes an adjustment toothed plate (5) and a slide rail (6). The other end of the locking component (3) is connected to the adjustment toothed plate (5). The adjustment toothed plate (5) is slidably arranged on the slide rail (6), and the adjustment toothed plate (5) meshes with the driving gear (4).

2. The seat back angle adjustment mechanism according to claim 1, characterized in that, Both ends of the slide rail (6) are provided with stop points for restricting the adjustment toothed plate (5) from falling off.

3. The seat back angle adjustment mechanism according to claim 1, characterized in that, The slide rail (6) is fixed to the vehicle frame.

4. The seat back angle adjustment mechanism according to claim 1, characterized in that, The adjustment component (1) further includes an adjustment handle (7) and a height adjustment pump (8). The adjustment handle (7) is rotatably installed on the height adjustment pump (8), and the height adjustment pump (8) is connected to the driving gear (4).

5. The seat back angle adjustment mechanism according to claim 4, characterized in that, The height adjustment pump (8) includes an output shaft (14). One end of the output shaft (14) is connected to the driving gear (4), and at least one protrusion (15) is arranged along the circumferential direction of the output shaft (14).

6. The seat back angle adjustment mechanism according to claim 5, characterized in that, The adjustment handle (7) includes an adjustment head (11) and a handle part (12). A through hole (13) is formed in the middle of the adjustment head (11). The other end of the output shaft (14) penetrates through the through hole (13). At least one push rod (9) is arranged along the circumferential direction of the adjustment head (11), and the protrusion (15) and the push rod (9) are arranged in circumferential dislocation and in abutting connection.

7. The seat back angle adjustment mechanism according to claim 4, characterized in that, It further includes a height adjustment pump fixing bracket (10). The height adjustment pump fixing bracket (10) is fixed to the vehicle frame, and the height adjustment pump (8) is fixedly installed on the height adjustment pump fixing bracket (10).

8. The seat back angle adjustment mechanism according to claim 7, characterized in that, The height adjustment pump (8) and the adjustment toothed plate (5) are respectively arranged on both sides of the height adjustment pump fixing bracket (10). A through hole is formed in the middle of the height adjustment pump fixing bracket (10), and the driving gear (4) passes through the through hole and meshes with the adjustment toothed plate (5).

9. An adjustable seat, characterized in that, It includes the seat backrest angle adjustment mechanism according to any one of claims 1 to 8.

10. A vehicle, characterized in that, It includes the seat backrest angle adjustment mechanism according to any one of claims 1 to 8.

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