Hidden reset type unlocking structure, seat and automobile

Abstract

The utility model relates to the technical field of automobile seat structures, and discloses a hidden reset type unlocking structure, a seat and an automobile, the hidden reset type unlocking structure comprises a seat frame and a pin shaft fixedly connected to the seat frame, the pin shaft is coaxially and rotatably connected with a first movable plate and a second movable plate, and a synchronous rotating piece is connected between the first movable plate and the second movable plate; a first movable plate and a second movable plate are coaxially and rotationally connected to the pin shaft, a first elastic reset piece and a second elastic reset piece are connected to the pin shaft, the two ends of the first elastic reset piece are fixedly connected with the pin shaft and the first movable plate respectively, and the two ends of the second elastic reset piece are fixedly connected with the pin shaft and the second movable plate respectively. The first elastic reset piece and the second elastic reset piece are both located between the first movable plate and the seat frame. According to the automobile seat unlocking structure, the first elastic reset piece and the second elastic reset piece are arranged between the first movable plate and the seat frame, and the problems that in the prior art, an automobile seat unlocking structure is complex and poor in stability are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat structures, in particular to a hidden reset unlocking structure, a seat and an automobile. Background Art

[0002] For seat structures with a folding function, the most common folding method is to first fold the backrest onto the seat cushion, and then fold or adjust the seat cushion and the folded backrest together to a predetermined position. Therefore, the unlocking mechanism currently provided on automobile seats includes at least two unlocking steps, each of which is performed in sequence. This makes the entire unlocking mechanism complex, costly, and the overall weight of the seat heavy. In order to solve the problem of the complex unlocking structure and complicated unlocking action of seats with a folding function in the prior art, the inventors have designed an invention patent for a folding automobile seat, such as the patent publication number CN116901800A and the invention name "One-button Unlocking." Through the interaction of specific components, one-button unlocking of the backrest folding and the seat cushion folding can be achieved, effectively simplifying the unlocking structure of the seat and making unlocking easier.

[0003] Although the above patent simplifies the unlocking structure and makes the unlocking process more convenient and easy, some problems still exist during actual use: As described in the patent specification of publication number CN116901800A, in order to always control the first movable plate and the second movable plate at the predetermined point, springs 2 and 3 are set in the unlocking mechanism, and springs 2 and 3 always pull the second movable plate from two directions. Although springs 2 and 3 can be used to control the position of the first movable plate and the second movable plate, springs 2 and 3 both adopt a tension spring structure. On the one hand, a specific mounting structure needs to be set on the first movable plate and the second movable plate to install and fix springs 2 and 3, resulting in a complex structure at the corresponding position, high cost and inconvenient installation; on the other hand, springs 2 and 3 are in an exposed state and are easily affected by other components during use, affecting the stability of the unlocking structure. Therefore, it is necessary to improve the existing unlocking structure to simplify the unlocking mechanism and improve its unlocking stability. Utility Model Content

[0004] The utility model aims to provide a hidden reset unlocking structure, a seat and a car, so as to solve the problem that the unlocking structure of the car seat in the prior art is complicated and has poor stability.

[0005] To solve the above problems, the utility model adopts the following technical solutions: a hidden reset unlocking structure, including a seat frame and a pin shaft fixedly connected to the seat frame, the first movable plate and the second movable plate are coaxially connected on the pin shaft, a synchronous rotating member is connected between the first movable plate and the second movable plate, the first movable plate and the second movable plate are coaxially connected on the pin shaft, the first elastic reset member and the second elastic reset member are connected to the pin shaft, two ends of the first elastic reset member are respectively fixedly connected to the pin shaft and the first movable plate, two ends of the second elastic reset member are respectively fixedly connected to the pin shaft and the second movable plate, and the first elastic reset member and the second elastic reset member are both located between the first movable plate and the seat frame.

[0006] The principle and beneficial effects of this solution are as follows: in this application, the first movable plate and the second movable plate are coaxially connected to the pin shaft. After the operating handle in the prior art is rotated to unlock the backrest, the backrest can be rotated and the rotation of the backrest will push the first movable plate to rotate. Since a synchronous rotating part is connected between the first movable plate and the second movable plate, the synchronous rotating part will push the second movable plate to rotate synchronously when the first movable plate rotates, so that the second movable plate drives the unlocking zipper in the prior art to move and realize the predetermined unlocking function, such as unlocking the locking structure (i.e., the ground lock) of the rear support of the seat frame in the prior art.

[0007] In the present application, since a first elastic return member and a second elastic return member are provided, the two ends of the first elastic return member are fixedly connected to the pin shaft and the first movable plate respectively, and the two ends of the second elastic return member are fixedly connected to the pin shaft and the second movable plate respectively. When the first return member and the second return member are not subject to external force, the first movable plate and the second movable plate are connected to each other through a synchronous rotating member, and the first movable plate and the second movable plate are both in a predetermined position. Under the elastic force of the first elastic return member and the second elastic return member, the position is stable, avoiding the first movable plate and the second movable plate from swinging at will and making abnormal collision noises, etc. At the same time, it will not cause the unlocking to be falsely triggered or fail due to vibration, collision, etc. of the car.

[0008] In addition, one end of the first elastic return member and one end of the second elastic return member in the present application are directly fixedly connected to the pin shaft. Compared with the prior art that requires setting a specific mounting structure for fixing spring two and spring three, the overall structure in the present application is simpler, the cost is lower and the installation is more convenient; more importantly, the first elastic return member and the second elastic return member in the present application are both located between the first movable plate and the seat frame, and are in a "hidden" and not exposed state during use. The first movable plate and the seat frame form a protective space for the first elastic return member and the second elastic return member during use, thereby reducing the occurrence of the first elastic return member and the second elastic return member being affected by other components during use or unlocking, which not only makes the appearance of the entire unlocking mechanism more tidy, but also effectively improves the stability and reliability during use.

[0009] Preferably, as an improvement, the first elastic return member includes a first torsion spring sleeved on the pin shaft, and the second elastic return member includes a second torsion spring sleeved on the pin shaft.

[0010] In this solution, the first elastic return member and the second elastic return member both adopt a torsion spring structure, which is simpler in structure than the tension spring in the prior art. The torsion spring is sleeved on the pin shaft, which not only effectively reduces the space occupied by the elastic return member during use, but also helps to simplify the entire unlocking structure. In addition, the pin shaft can serve as a limiting component of the torsion spring, making the torsion spring more stable during the force storage process, further improving the stability of the unlocking structure.

[0011] Preferably, as an improvement, the first torsion spring and the second torsion spring are arranged along the axial direction of the pin shaft, and a rotation gap is provided between the first torsion spring and the second torsion spring.

[0012] In this solution, a rotation gap is provided between the first torsion spring and the second torsion spring to avoid interference between the first torsion spring and the second torsion spring during operation, thereby ensuring the stability of the operation of the first torsion spring and the second torsion spring.

[0013] Preferably, as an improvement, a first fixing hole and a second fixing hole are formed on the pin shaft, one end of the first torsion spring is fixedly connected to the first fixing hole, and one end of the second torsion spring is fixedly connected to the second fixing hole.

[0014] In this solution, by opening a fixing hole on the pin shaft and inserting one end of the torsion spring into the fixing hole, the torsion spring can be firmly fixed, which is simple to install and firmly fixed.

[0015] Preferably, as an improvement, a first slot is provided on the first movable plate, and the end of the first torsion spring away from the pin is engaged with the first slot; a second slot is provided on the second movable plate, and the end of the second torsion spring away from the pin is engaged with the second slot.

[0016] In this solution, by setting the first card slot and the second card slot to cooperate with the first torsion spring and the second torsion spring respectively, during installation, it is only necessary to snap the end of the torsion spring into the corresponding card slot to complete the installation of the torsion spring conveniently and stably. The structure is simple and the connection is stable.

[0017] Preferably, as an improvement, the synchronous rotating member includes a first limit plate fixedly connected to the second movable plate, and a second limit plate fixedly connected to the seat frame. When the first elastic reset member and the second elastic reset member are not subjected to external force, the first movable plate and the first limit plate are abutted against each other, and the second movable plate and the second limit plate are abutted against each other.

[0018] In this solution, by setting the first limit plate and the second limit plate, when the entire unlocking structure is not subject to external force, the first movable plate is against the first limit plate, and the second movable plate is against the second limit plate. The relative positions of the first movable plate, the second movable plate and the seat frame are stable, and there is a certain pre-pressure effect between each contacting or connected component to avoid loose components and abnormal noise during use. At the same time, the unlocking structure will not be triggered by mistake and fail.

[0019] Preferably, as an improvement, a mounting gap is provided between the first movable plate and the second movable plate, and an end of the first torsion spring away from the pin is located in the mounting gap.

[0020] In this solution, by setting an installation gap between the first movable plate and the second movable plate, after the end of the first torsion spring away from the pin shaft is connected to the first movable plate, the installation gap can provide an installation and placement space for the end of the first torsion spring, making the connection between the first movable plate and the second movable plate more stable.

[0021] Preferably, as an improvement, a small diameter section is provided on the end of the pin away from the seat frame, the first movable plate and the second movable plate are both rotatably engaged with the small diameter section, and the end of the pin away from the seat frame is fixedly connected to a limiting ring.

[0022] In this solution, the first movable plate and the second movable plate are both rotated in conjunction with the small-diameter section. Under the limiting effect of the limiting ring, the positions of the first movable plate and the second movable plate are stable during the rotation process and will not move in the axial direction of the pin shaft, etc., making the rotation process of the first movable plate and the second movable plate very stable, thereby achieving stable unlocking, etc.

[0023] A seat comprises the aforementioned hidden reset unlocking structure.

[0024] A car comprises the aforementioned hidden reset unlocking structure or the aforementioned seat.

[0025] In this solution, a hidden reset unlocking structure is provided on the seat or the car, so that the unlocking structure is simpler. At the same time, the first elastic reset member and the second elastic reset member are both located between the first movable plate and the seat frame, and are in a "hidden" state when in use, making the unlocking process more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of Example 1 of the present utility model.

[0027] Figure 2 for Figure 1 Schematic diagram of the rear side.

[0028] Figure 3This is a schematic diagram of the connection between the first movable plate, the second movable plate, the pin shaft, and the first torsion spring and the second torsion spring in Example 1 of the present invention.

[0029] Figure 4 for Figure 3 Left side perspective view.

[0030] Figure 5 This is an exploded view of the connection between the first movable plate, the second movable plate, the pin shaft, and the first torsion spring and the second torsion spring in Example 1 of the present invention. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] The figure marks in the drawings of the specification include: seat frame 1, pin shaft 2, small diameter section 201, first movable plate 3, first slot 301, second movable plate 4, second slot 401, limiting ring 5, first torsion spring 6, second torsion spring 7, installation gap 8, first limiting plate 9, second limiting plate 10, operating handle 11, zipper 12, pin 13, slot 14, backrest frame 15, shift fork 16, zipper 2 17.

[0033] Example 1

[0034] This embodiment is as shown in the attached Figure 1 Shown: A hidden reset unlocking structure, comprising a seat frame 1 and a pin 2 welded to the seat frame 1, combined with Figure 5 The top of the pin shaft 2 is provided with a small diameter section 201, and the first movable plate 3 and the second movable plate 4 are coaxially connected to the small diameter section 201. The first movable plate 3 is located between the seat frame 1 and the second movable plate 4, and the top of the pin shaft 2 is fixed by threads or welded with a limiting ring 5. The limiting ring 5 is used to limit the first movable plate 3 and the second movable plate 4 to ensure that the first movable plate 3 and the second movable plate 4 can rotate stably relative to the pin shaft 2.

[0035] Combine Figure 1 、 Figure 4 and Figure 5, the pin shaft 2 is connected with a first elastic return member and a second elastic return member. In this embodiment, the first elastic return member includes a first torsion spring 6 connected between the pin shaft 2 and the first movable plate 3, and the second elastic return member includes a second torsion spring 7 connected between the pin shaft 2 and the second movable plate 4. In order to conveniently and stably install and connect the first torsion spring 6 and the second torsion spring 7, in this embodiment, a first fixing hole and a second fixing hole arranged along the radial direction of the pin shaft 2 are opened on the pin shaft 2, and a first card slot 301 is opened on the first movable plate 3, and a second card slot 401 is opened on the second movable plate 4. One end of the first torsion spring 6 is inserted into the first fixing hole, and the other end is clamped into the first card slot 301. One end of the second torsion spring 7 is inserted into the second fixing hole, and the other end is clamped into the second card slot 401. The installation and fixation of the first torsion spring 6 and the second torsion spring 7 can be conveniently and stably completed. At the same time, as Figure 4 As shown, in order to avoid mutual interference between the first torsion spring 6 and the second torsion spring 7 during operation, a rotation gap is provided between the first torsion spring 6 and the second torsion spring 7 in this embodiment, that is, the first torsion spring 6 and the second torsion spring 7 have a certain distance in the axial direction of the pin shaft 2, so as to avoid collision between the first torsion spring 6 and the second torsion spring 7 during operation.

[0036] Combine Figure 1 、 Figure 3 and Figure 5 In order to make the first movable plate 3 and the second movable plate 4 rotate synchronously and stably, in this embodiment, a synchronous rotating member is connected between the first movable plate 3 and the second movable plate 4. Specifically, the synchronous rotating member is a first limit plate 9 that is bent and formed as an integral part on the second movable plate 4. At the same time, a second limit plate 10 is welded to the seat frame 1. When the entire unlocking result is not affected by external force, the first movable plate 3 and the first limit plate 9 are in a tight state against each other, and the second movable plate 4 and the second limit plate 10 are in a tight state against each other. At the same time, in order to make the end of the first torsion spring 6 stable and convenient to install in the first card slot 301, in this example, the end of the first movable plate 3 is bent so that a gap is formed between the end of the first movable plate 3 and the second movable plate 4. Figure 4 The installation gap 8 is shown, and the end of the first torsion spring 6 is located in the installation gap 8.

[0037] The specific implementation process is as follows:

[0038] In this embodiment, the operating handle 11 in the prior art is manually rotated so that the operating handle 11 moves along the Figure 1 Rotate the seat frame 1 counterclockwise, and the operating handle 11 pulls the zipper 12 to unlock. Figure 2 The pin 13 in the backrest is released from the slot 14 to unlock the backrest. At this time, the backrest frame 15 can be moved along the Figure 1 The backrest is folded by rotating clockwise. When the backrest frame 15 rotates, the shift fork 16 swings, and the shift fork 16 pushes the first movable plate 3 along the Figure 1 The first movable plate 3 rotates counterclockwise, and the second movable plate 4 is driven to rotate counterclockwise synchronously through the first limiting plate 9 , so that the second movable plate 4 pulls the zipper 17 to unlock.

[0039] In this embodiment, the first torsion spring 6 and the second torsion spring 7 are used to provide a tensile force for the first movable plate 3 and the second movable plate 4. Under the limiting action of the first limiting plate 9 and the second limiting plate 10, the first movable plate 3 and the second movable plate 4 are always in a state of being pressed against each other during the rotation process. When the entire unlocking structure is not subjected to external force, under the torsion action of the first torsion spring 6 and the second torsion spring 7, the first movable plate 3 is pressed against the first limiting plate 9, and the second movable plate 4 is pressed against the second limiting plate 10, thereby preventing the first movable plate 3 and the second movable plate 4 from being in a loose state, thereby avoiding abnormal noise during use and ensuring the stability of the entire unlocking structure. In addition, in this embodiment, by arranging the first torsion spring 6 and the second torsion spring 7 between the first movable plate 3 and the seat frame 1, the first torsion spring 6 and the second torsion spring 7 are in a "hidden" state during use, which can greatly reduce the interference of other components on the first torsion spring 6 and the second torsion spring 7, so that the unlocking process can be carried out more stably, and the structure of the entire unlocking structure is also more simple and beautiful.

[0040] Example 2

[0041] A seat includes a hidden reset unlocking structure in embodiment 1, and a car includes the above-mentioned hidden reset unlocking structure or the above-mentioned seat, so that the unlocking structure of the seat with a folding function is simpler in structure, lower in cost, more convenient to install, and more stable and reliable in operation.

[0042] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A hidden reset unlocking structure comprising a seat frame and a pin fixedly connected to the seat frame, a first movable plate and a second movable plate coaxially connected to the pin, and a synchronous rotating member connected between the first movable plate and the second movable plate, characterized in that: The pin shaft is connected to a first elastic reset member and a second elastic reset member, the two ends of the first elastic reset member are fixedly connected to the pin shaft and the first movable plate respectively, the two ends of the second elastic reset member are fixedly connected to the pin shaft and the second movable plate respectively, and the first elastic reset member and the second elastic reset member are both located between the first movable plate and the seat frame.

2. The hidden reset unlocking structure according to claim 1, characterized in that: The first elastic return member includes a first torsion spring sleeved on the pin shaft, and the second elastic return member includes a second torsion spring sleeved on the pin shaft.

3. The hidden reset unlocking structure according to claim 2, characterized in that: The first torsion spring and the second torsion spring are arranged along the axial direction of the pin shaft, and a rotation gap is provided between the first torsion spring and the second torsion spring.

4. The hidden reset unlocking structure according to claim 2, characterized in that: The pin shaft is provided with a first fixing hole and a second fixing hole. One end of the first torsion spring is fixedly connected to the first fixing hole, and one end of the second torsion spring is fixedly connected to the second fixing hole.

5. The hidden reset unlocking structure according to claim 2, characterized in that: A first slot is formed on the first movable plate, and one end of the first torsion spring away from the pin is engaged with the first slot; a second slot is formed on the second movable plate, and one end of the second torsion spring away from the pin is engaged with the second slot.

6. The hidden reset unlocking structure according to claim 1, characterized in that: The synchronous rotating member includes a first limit plate fixedly connected to the second movable plate, and a second limit plate fixedly connected to the seat frame. When the first elastic reset member and the second elastic reset member are not subjected to external force, the first movable plate and the first limit plate are abutted against each other, and the second movable plate and the second limit plate are abutted against each other.

7. The hidden reset unlocking structure according to claim 2, characterized in that: An installation gap is provided between the first movable plate and the second movable plate, and an end of the first torsion spring away from the pin is located in the installation gap.

8. The hidden reset unlocking structure according to claim 1, characterized in that: The pin shaft has an end away from the seat frame with a small diameter section, the first movable plate and the second movable plate are both rotatably matched with the small diameter section, and the pin shaft has an end away from the seat frame fixedly connected to a limiting ring.

9. A chair, characterized in that: It comprises a hidden reset unlocking structure as described in any one of claims 1-8.

10. An automobile, characterized in that: It includes a hidden reset unlocking structure as described in any one of claims 1 to 8 or a seat as described in claim 9.

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