Seat turntable lock pin mechanism

Abstract

The utility model discloses a seat turntable lock pin mechanism which comprises a chassis and a movable disc rotationally arranged at the top of the chassis, the movable disc is provided with a lock pin capable of sliding up and down in the vertical direction, the chassis is provided with a locking hole right opposite to the lock pin, the movable disc is further provided with an elastic element and a zipper traction assembly, and the elastic element and the zipper traction assembly are associated with the lock pin. The elastic element applies thrust which enables the lower end of the lock pin to be inserted and kept in the locking hole, and when the zipper traction assembly is operated, the lock pin can overcome the resistance of the elastic element to be separated from the locking hole upwards. The automobile seat has the advantages that the lock pin is arranged in the locking hole in a penetrating mode through the elastic element, the movable disc and the base disc can be locked, then it is guaranteed that the seat does not shake, when the seat needs to be rotated, only the inhaul cable traction assembly needs to be operated, the lock pin moves upwards and is separated from the locking hole, and operation is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically to a seat turntable locking mechanism. Background Technology

[0002] As the automotive industry continues to develop, the market demands for seats are also increasing. Seats must not only meet passengers' requirements for comfort but also fulfill their functional requirements, including the need for rotating seats, which can meet various communication modes required by customers.

[0003] Seat rotation is mainly achieved through the mechanical principle of gear transmission. However, due to the free backlash between gears, the seat will shake when the car is subjected to external forces, posing a great safety hazard and greatly affecting the overall comfort of the car seat. Utility Model Content

[0004] In view of this, the present invention provides a seat turntable locking mechanism, which aims to prevent the seat from shaking when it is not rotating.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A seat turntable locking mechanism includes a chassis and a movable plate rotatably disposed on the top of the chassis. The movable plate is characterized by having a locking pin capable of sliding vertically up and down; the chassis has a locking hole directly opposite the locking pin; the movable plate is equipped with an elastic element associated with the locking pin and a pull-lock traction assembly; the elastic element applies a thrust that causes the lower end of the locking pin to be inserted into and held within the locking hole; and by operating the pull-lock traction assembly, the locking pin can overcome the resistance of the elastic element and disengage upwards from the locking hole.

[0007] With the above structure, the locking pin is inserted downward into the locking hole by the elastic element, which can lock the moving plate and the chassis, thus ensuring that the seat will not shake. When the seat needs to be rotated, simply operate the cable traction component to move the locking pin upward and disengage it from the locking hole. The operation is very convenient.

[0008] Preferably, the moving plate has a bracket at its top, the locking pin has a support section extending outward from its middle, the elastic element is a spring, the spring is fitted onto the locking pin, and the two ends of the spring are respectively supported on the support section and the bracket. This structure allows the elastic element to stably apply a downward thrust to the locking pin, ensuring that the lower end of the locking pin is stably inserted into the locking hole, thereby preventing the car seat from shaking.

[0009] Preferably, the top of the moving plate is provided with two locking pins, the center lines of the two locking pins being at different distances from the center of the moving plate. This structure allows for different distances from the locking hole of the fixed plate to its center, resulting in a smaller locking step and avoiding noticeable locking sounds from both the front and back. Simultaneously, the two locking pins can be used to prevent the moving plate from shaking clockwise and counterclockwise, respectively.

[0010] Preferably, the zipper traction assembly includes a movable plate and a cable, with locking pins located at both ends of the movable plate, a support section supporting the top of the movable plate, and the cable passing through the middle of the movable plate. With this structure, the up-and-down movement of the movable plate via the cable can synchronously control the up-and-down movement of the two locking pins, making operation very convenient.

[0011] Preferably, the bracket includes two vertical sections and one horizontal section. The locking pin passes through the horizontal section, and the top of the locking pin always protrudes upward beyond the horizontal section. The spring abuts against the bottom of the horizontal section. With this structure, the horizontal section ensures that when the lower end of the locking pin disengages from the locking hole, the locking pin still passes through the two plates, thus ensuring stable up-and-down movement of the locking pin.

[0012] Preferably, a drive motor is provided at the end of the cable away from the movable plate. This structure enables electric control of the entire locking mechanism.

[0013] Preferably, the chassis bottom has multiple sets of locking holes along the circumferential direction, each set consisting of two locking holes, and the two locking holes are unequally distanced from the center of the chassis. This structure allows for locking of the car seat at multiple angles, increasing the seat's usability.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The seat turntable locking mechanism provided by this utility model uses a locking pin that is vertically inserted between the moving plate and the chassis, and is equipped with an elastic element, which can lock the moving plate and the chassis, thereby ensuring that the car seat will not shake. When the car seat needs to be rotated, it is only necessary to pull the locking pin upward and disengage it from the locking hole by the traction component, which is very convenient to operate.

[0016] 2. The bracket ensures that the elastic element is stably supported while also ensuring that the locking pin is restricted by the moving plate and the bracket when it is disengaged from the locking hole, thus ensuring that the locking pin can move up and down stably.

[0017] 3. The movement of the locking pin is a linear movement in the vertical direction, which makes the unlocking and locking more stable and reliable. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of the seat turntable locking mechanism (cable 7 is hidden);

[0019] Figure 2 for Figure 1 Enlarged view of point I in the middle;

[0020] Figure 3 This is a partial sectional view of the seat turntable locking mechanism;

[0021] Figure 4 This is a schematic diagram of the bottom structure of the seat turntable locking mechanism. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0023] like Figures 1 to 4 As shown, a seat turntable locking mechanism includes a chassis 1 and a movable plate 2 rotatably mounted on top of the chassis 1. The chassis 1 is fixedly mounted on the bottom of a car or on a seat rail, while the car seat is fixedly mounted above the movable plate 2. A locking pin 3, capable of sliding vertically up and down, is inserted through the top of the movable plate 2. A locking hole 1a, opposite to the locking pin 3, is formed on the bottom of the chassis 1. An elastic element 4 associated with the locking pin 3 and a cable traction assembly A are mounted on the movable plate 2. The elastic element 4 applies a thrust that causes the lower end of the locking pin 3 to be inserted and held within the locking hole 1a. By operating the cable traction assembly A, the locking pin 3 can overcome the resistance of the elastic element 4 and disengage upward from the locking hole 1a.

[0024] The lower end of the locking pin 3 is stably inserted into the locking hole 1a by the elastic element 4, thereby locking the chassis 1 and the moving plate 2, ensuring that the car seat will not shake. When the car seat needs to be rotated, the locking pin 3 can be pulled upward by the cable traction assembly A, so that the lower end of the locking pin 3 is disengaged from the locking hole 1a, which is very convenient to operate.

[0025] like Figure 2 As shown, a bracket 5 is fixedly installed on the top of the moving plate 2. The bracket 5 includes two vertically installed vertical sections 5a and a horizontal section 5b formed between the tops of the two vertical sections 5a, thus forming an arched structure. A support section 3a extends circumferentially from the middle of the locking pin 3. In this embodiment, the elastic element 4 is a spring, which is fitted onto the locking pin 3. The two ends of the spring abut against the support section 3a and the horizontal section 5b, respectively. The support section 3a and the horizontal section 5b enable the elastic element 4 to stably support the locking pin 3 while also stably applying a downward thrust, thereby ensuring a more stable locking between the chassis 1 and the moving plate 2.

[0026] In this embodiment, the locking pin 3 is inserted through the horizontal section 5b, and the top of the locking pin 3 always protrudes upward beyond the horizontal section 5b. This ensures that when the lower end of the locking pin 3 is disengaged from the locking hole 1a, the locking pin 3 can still be restricted by the moving plate 2 and the horizontal section 5b at the same time, thereby ensuring that the locking pin 3 can move up and down stably.

[0027] Furthermore, such as Figure 1 and Figure 2 As shown, a mounting plate 8 is fixedly installed on the top of the moving plate 2 by bolts. A rotating motor 9 is fixedly installed on the top of the mounting plate 8. A gear plate 10 is fixedly installed on the chassis 1. A gear meshing with the gear plate 10 is installed at the output end of the rotating motor 9, so as to ensure that the car seat can rotate electrically. The moving plate 8 has a groove at the position of the turntable locking pin mechanism. In this embodiment, a mounting plate 11 is fixedly installed on the moving plate 8 at the position of the groove by bolts. The vertical section 5a of the bracket 5 is fixedly installed on the mounting plate 11. When the lower end of the locking pin 3 is disengaged from the locking hole 1a by the mounting plate 11, the locking pin 3 can still be restricted by the mounting plate 11 and the moving plate 2, so that the locking pin 3 can move up and down stably without shaking. In addition, the bracket 5 can also be directly fixedly installed on the top of the moving plate 2.

[0028] like Figure 2 As shown in this embodiment, two locking pins 3 are provided on the top of the moving plate 2, and the distance from the center line of the two locking pins 3 to the center of the moving plate 2 is different. This design can achieve a smaller step locking and avoid obvious locking sounds from the front and back. The two locking pins also restrict the shaking of the moving plate 2 in the clockwise and counterclockwise directions respectively.

[0029] like Figure 3 As shown, the cable traction assembly A includes a movable plate 6 and a cable 7. Two locking pins 3 are inserted at the left and right ends of the movable plate 6, and the support section 3a is supported on the top of the movable plate 6. The cable 7 is inserted in the middle of the movable plate 6. With this design, the two locking pins 3 can be moved up and down simultaneously by pulling the middle of the movable plate 6 with the cable 7. To further avoid obvious locking sounds from the front and back, in this embodiment, either of the two locking pins 3 can be welded to the movable plate 6.

[0030] In this embodiment, a drive motor is connected to the end of the cable 7 away from the movable plate 6. The drive motor enables electric control of the locking pin mechanism. In addition, the cable 7 can also be manually operated to control the locking pin mechanism.

[0031] In this embodiment, a pad 12 is added between the movable plate 6 and the mounting plate 11. The pad 12 is a non-metallic part, and a mounting protrusion 12a is provided at the bottom of the pad 12. The pad 12 is fixedly mounted on the mounting plate 11 by the mounting protrusion 12a, and the movable plate 6 is supported on the pad 12. This design can avoid noise when metals collide.

[0032] For example Figure 4 As shown, multiple sets of locking holes 1a are distributed on the bottom of the chassis 1. Each set of locking holes 1a consists of two locking holes 1a, and the distances between the two locking holes 1a and the center of the chassis 1 are unequal. Each set of locking holes 1a corresponds to an angle at which the car seat rotates. This design allows the car seat to be locked at multiple angles, increasing the usage scenarios of the seat.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A seat turntable locking mechanism, comprising a chassis (1) and a movable disc (2) rotatably disposed on the top of the chassis (1), characterized in that: The moving plate (2) is provided with a locking pin (3) that can slide up and down in the vertical direction. The base plate (1) is provided with a locking hole (1a) that is directly opposite to the locking pin (3). The moving plate (2) is provided with an elastic element (4) associated with the locking pin (3) and a zipper traction assembly (A). The elastic element (4) applies a thrust to make the lower end of the locking pin (3) insert into and stay in the locking hole (1a). By operating the zipper traction assembly (A), the locking pin (3) can overcome the resistance of the elastic element (4) and move upward away from the locking hole (1a).

2. The seat turntable locking mechanism according to claim 1, characterized in that: The moving plate (2) is provided with a bracket (5) at the top. The locking pin (3) extends outward from the middle with a support section (3a). The elastic element (4) is a spring. The spring is fitted on the locking pin (3), and the two ends of the spring are supported on the support section (3a) and the bracket (5) respectively.

3. The seat turntable locking mechanism according to claim 2, characterized in that: Two locking pins (3) are provided on the top of the moving plate (2), and the distances from the center line of the two locking pins (3) to the center of the moving plate (2) are different.

4. The seat turntable locking mechanism according to claim 3, characterized in that: The zipper traction assembly (A) includes a movable plate (6) and a cable (7). The locking pin (3) is located at both ends of the movable plate (6), and the support section (3a) is supported on the top of the movable plate (6). The cable (7) passes through the middle of the movable plate (6).

5. The seat turntable locking mechanism according to claim 2, characterized in that: The bracket (5) includes two vertical sections (5a) and a horizontal section (5b). The locking pin (3) passes through the horizontal section (5b) and the top of the locking pin (3) always protrudes upward beyond the horizontal section (5b). The spring abuts against the bottom of the horizontal section (5b).

6. The seat turntable locking mechanism according to claim 4, characterized in that: The cable (7) is equipped with a drive motor at the end away from the movable plate (6).

7. The seat turntable locking mechanism according to claim 3, characterized in that: The bottom of the chassis (1) is provided with multiple sets of locking holes (1a) along the circumferential direction. Each set of locking holes (1a) consists of two locking holes (1a), and the distance between the two locking holes (1a) and the center of the chassis (1) is not equal.

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