Adjusting and limiting structure of automobile seat

Abstract

The utility model discloses an automobile seat adjusting and limiting structure which comprises a first sliding seat, a second sliding seat is arranged on one side of the first sliding seat, a first seat mounting plate is connected to the second sliding seat in a sliding mode, a locking plate is welded to the upper portion of the first seat mounting plate, a plurality of locking grooves are evenly formed in the locking plate, and the first seat mounting plate and the second seat mounting plate are connected in a sliding mode. And the lower part of the first seat mounting plate is fixedly connected with a sliding block. Due to the design that the locking plate is arranged and the locking grooves are evenly formed in the locking plate, accurate fixing of the position of the seat is achieved. When the clamping jaws are inserted into the specific locking grooves, the seat can be locked at the required position, and safety and comfort of a driver or passengers are guaranteed. A stable locking mechanism is provided, a user is allowed to adjust the front-back position of the seat according to personal requirements, the use experience is improved, and the electric unlocking function is achieved by driving the main shaft and the clamping jaw to rotate through the stepping motor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of limiting structure, especially relates to a regulating and limiting structure of automobile seat. BACKGROUND

[0002] The automobile seat is a seat for riding in a car, which can be roughly divided into: separate seats, long seats; According to the function, it can be divided into fixed type, detachable type and adjustable type; According to the number of people, it can be divided into single seat, double seat and multi-seat; According to the material, it can be divided into leather seat and velvet seat, etc. There are also some special use object seats, such as children's seat and racing seat, etc. According to the use performance of the seat, from the earliest fixed seat, it has developed to the multifunctional power adjustment seat.

[0003] The adjusting device of the prior art, such as the Chinese utility model patent No. CN214822764U, discloses a kind of automobile seat with waist support adjustment, including chair back, the left and right ends of chair back are all fixedly connected with sector fixed plate, the end face of two sector fixed plates close to each other is fixedly connected with cushion, the lower end of cushion is equipped with sliding mechanism, the sliding mechanism is connected with cushion to realize its sliding, the left end of cushion is equipped with rotating mechanism, the rotating mechanism is connected with chair back to realize its rotation, the lower end of cushion is equipped with damping mechanism, the damping mechanism is connected with cushion to realize its damping, the upper end of chair back is fixedly connected with two first circular connecting rods, the upper end of two first circular connecting rods is fixedly connected with headrest.

[0004] Although the above-mentioned patent can realize multifunctional adjustment, it is inconvenient to operate when adjusting forward and backward, and it needs to be manually unlocked first, then manually pushed to move the seat, which is time-consuming and laborious. Therefore, we propose a regulating and limiting structure of automobile seat. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the utility model aims to provide a regulating and limiting structure of automobile seat, which is provided with a locking plate, a plurality of locking grooves are uniformly formed on the locking plate, a stepping motor can drive the main shaft and the jaw to rotate to realize electric unlocking, a DC motor can drive the screw rod and the sliding block to move, and then drive the seat to move forward and backward, thereby improving the efficiency and saving the labor.

[0006] This utility model is implemented as follows: an adjustable limiting structure for a car seat includes a first slide block, a second slide block on one side of the first slide block, a first seat mounting plate slidably connected to the second slide block, a locking plate welded to the upper part of the first seat mounting plate, a plurality of locking grooves evenly formed on the locking plate, a slider fixedly connected to the lower part of the first seat mounting plate, a DC motor fixedly connected to the rear side of the second slide block, a lead screw fixedly connected to the output shaft of the DC motor, the lead screw being driven by the slider through a lead screw nut, a first connecting block and a second connecting block welded to the second slide block, a main shaft rotatably connected to the first and second connecting blocks, a pawl connected to the main shaft, a stepper motor welded to the second slide block, and the output shaft of the stepper motor being fixedly connected to the main shaft.

[0007] The locking plate has several evenly spaced locking slots, and the pawls are driven by a stepper motor to rotate the main shaft, causing them to engage or disengage from the locking slots. The innovation of this design lies in providing an automated locking and unlocking mechanism, ensuring the seat is securely fixed in a designated position. Compared to manual adjustment, this design improves locking accuracy and speed while avoiding insecure locking due to human error. This approach solves the problems of instability and inefficiency associated with manual locking in existing technologies.

[0008] A DC motor is connected to a lead screw via its output shaft, and the lead screw is then connected to a slider via a lead screw nut, thereby driving the seat to move back and forth. The advantage of this design is that using a motor drive instead of the traditional manual pulling or pushing method not only improves adjustment efficiency but also reduces the physical exertion of the operator. More importantly, the motor drive allows for precise control, ensuring that each adjustment reaches the desired position, improving the accuracy and consistency of seat adjustments.

[0009] Furthermore, a first sleeve is welded to the lower part of the chuck, and the first sleeve is sleeved on the main shaft and welded thereto.

[0010] Furthermore, a connecting plate is welded between the first slide and the second slide, and a second seat mounting plate is slidably connected to the first slide.

[0011] Furthermore, both the second seat mounting plate and the first seat mounting plate are provided with mounting holes, and the second seat mounting plate and the first seat mounting plate are respectively connected with heightening support plates by bolts.

[0012] Furthermore, a lead screw bearing seat is installed at one end of the second slide, and the end of the lead screw is rotatably connected to the lead screw bearing seat.

[0013] Furthermore, the main shaft is provided with a chuck positioning plate, and two second sleeves are welded to the lower part of the chuck positioning plate. The second sleeves are sleeved on the main shaft, and a torsion spring is connected between the chuck positioning plate and the second connecting block.

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

[0015] 1. The design incorporates a locking plate with evenly spaced locking slots, achieving precise seat positioning. When the locking claws insert into specific slots, the seat is locked in the desired position, ensuring the safety and comfort of the driver or passenger. This not only provides a robust locking mechanism but also allows users to adjust the seat's fore-and-aft position according to their individual needs, enhancing the user experience.

[0016] 2. The electric unlocking function is achieved by using a stepper motor to drive the rotation of the spindle and chuck, greatly simplifying the operation process. Traditional manual unlocking methods can be time-consuming and laborious, while electric unlocking can be completed with just a simple button operation, which not only improves operational efficiency but also reduces the physical exertion of the user. In addition, this design enhances the reliability and durability of the system, because fewer moving mechanical parts mean a lower failure rate.

[0017] 3. The seat's fore-and-aft adjustment is achieved by controlling the movement of a lead screw and slider using a DC motor. This method is more precise and smoother than traditional mechanical linkages or manual adjustment. The seat can slide smoothly on the guide rail, reducing noise and wear, while also ensuring stability and safety during seat adjustment. This design makes seat adjustment more intelligent and convenient, further enhancing the user experience.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the second slide block structure provided by this utility model;

[0021] Figure 3 This utility model provides Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the slider and lead screw provided by this utility model.

[0023] In the diagram: 1. Connecting plate; 2. Mounting hole; 3. Second seat mounting plate; 4. Heightening support plate; 5. First slide; 6. Second slide; 7. First seat mounting plate; 8. Locking plate; 9. Main shaft; 10. First connecting block; 11. Second connecting block; 12. Stepper motor; 13. DC motor; 14. Lead screw; 15. First sleeve; 16. Claw; 17. Claw positioning plate; 18. Torsion spring; 19. Slider; 20. Lead screw bearing seat. Detailed Implementation

[0024] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0025] like Figures 1 to 4 As shown in the figure, this utility model provides an adjustment limiting structure for a car seat.

[0026] The system includes a first slide block 5, a second slide block 6 on one side of the first slide block 5, a first seat mounting plate 7 slidably connected to the second slide block 6, a locking plate 8 welded to the upper part of the first seat mounting plate 7, a plurality of locking grooves evenly provided on the locking plate 8, a slider 19 fixedly connected to the lower part of the first seat mounting plate 7, a DC motor 13 fixedly connected to the rear side of the second slide block 6, a lead screw 14 fixedly connected to the output shaft of the DC motor 13, and the lead screw 14 is connected to the slider 19 through a lead screw nut, a first connecting block 10 and a second connecting block 11 welded to the second slide block 6, a main shaft 9 rotatably connected to the first connecting block 10 and the second connecting block 11, a pawl 16 connected to the main shaft 9, and a stepper motor 12 welded to the second slide block 6, the output shaft of the stepper motor 12 being fixedly connected to the main shaft 9.

[0027] The locking plate 8 has several evenly spaced locking slots, and the pawl 16 can be driven by the stepper motor 12 to rotate the main shaft 9, thereby allowing the pawl 16 to engage or disengage from the locking slots. The innovation of this design lies in providing an automated locking and unlocking mechanism, ensuring the seat is securely fixed in a set position. Compared to manual adjustment, this design improves locking accuracy and speed while avoiding the problem of insecure locking due to human error. In this way, it solves the problems of instability and inefficiency in existing manual locking technologies.

[0028] The DC motor 13 is connected to the lead screw 14 via its output shaft. The lead screw 14 is then connected to the slider 19 via a lead screw nut, thereby driving the seat to move back and forth. The advantage of this design is that using a motor drive instead of the traditional manual pulling or pushing method not only improves adjustment efficiency but also reduces the physical exertion of the operator. More importantly, the motor drive allows for precise control, ensuring that each adjustment reaches the expected position, thus improving the accuracy and consistency of seat adjustment.

[0029] The lower part of the chuck 16 is welded with a first sleeve 15, which is sleeved on the main shaft 9 and welded to it. Therefore, when the main shaft 9 rotates, the chuck 16 also rotates.

[0030] A connecting plate 1 is welded between the first slide 5 and the second slide 6, and a second seat mounting plate 3 is slidably connected to the first slide 5.

[0031] Both the second seat mounting plate 3 and the first seat mounting plate 7 have mounting holes 2. The second seat mounting plate 3 and the first seat mounting plate 7 are respectively connected to the lifting support plate 4 by bolts. The lower part of the seat is connected to the mounting holes 2 by bolts. The lifting support plate 4 has openings that can also be used to connect the seat frame.

[0032] A lead screw bearing seat 20 is installed at one end of the second slide block 6. The end of the lead screw 14 is rotatably connected to the lead screw bearing seat 20, and the lead screw bearing seat 20 plays the role of stabilizing the lead screw 14.

[0033] The main shaft 9 is provided with a chuck positioning plate 17. Two second sleeves are welded to the lower part of the chuck positioning plate 17. The second sleeves are sleeved on the main shaft 9. A torsion spring 18 is connected between the chuck positioning plate 17 and the second connecting block 11. The torsion spring 18 can keep the chuck positioning plate 17 in its original position, that is, the upper right part of the chuck positioning plate 17 can be kept on the upper part of the locking plate 8, so that the chuck positioning plate 17 is in a vertical state, forming the initial positioning of the chuck 16 when it rotates.

[0034] Working principle: First, when the user needs to unlock and move the seat, the unlocking command is triggered by the control device inside the vehicle. At this time, the stepper motor 12 starts, its output shaft rotates, and drives the main shaft 9 to rotate. As the main shaft 9 rotates, the pawl 16 connected to the main shaft 9 also begins to rotate. Since the pawl 16 is embedded in the locking groove on the locking plate 8, it will gradually disengage from the current locking groove during the rotation of the pawl 16.

[0035] Once the pawl 16 is fully disengaged from the locking groove, the seat is unlocked, and the user can issue a command via a button on the vehicle's control panel. At this time, the DC motor 13 starts, and its output shaft rotates, driving the slider 19 to move linearly along the lead screw 14. Since the slider 19 is fixedly connected to the first seat mounting plate 7, the movement of the slider 19 will cause the first seat mounting plate 7 and the seat mounted on it to slide on the second slide block 6, thereby adjusting the seat's fore-and-aft position.

[0036] When the seat reaches the desired position, the user presses the button again to stop the DC motor 13, at which point the seat remains in its current position. If further fixing of the seat position is required, the stepper motor 12 starts working, its output shaft rotates and is fixedly connected to the main shaft 9, thereby driving the main shaft 9 to rotate. The pawl 16 on the main shaft 9 rotates accordingly until the pawl 16 aligns with and engages the locking groove on the locking plate 8, completing the seat fixing action. The first sleeve 15 welded to the lower part of the pawl 16 ensures a stable connection between the pawl 16 and the main shaft 9, while the pawl positioning plate 17 on the main shaft 9, in cooperation with the torsion spring 18, ensures that the pawl 16 accurately enters the locking groove.

[0037] The entire adjustment process is coordinated by an electronic control system, which not only simplifies the operation process but also ensures the accuracy of the adjustment and the firmness of the seat fixation, thereby improving the driver's comfort and safety.

[0038] 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 alterations 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. An adjustment and limiting structure for a car seat, comprising a first sliding seat (5), characterized in that: A second slide (6) is provided on one side of the first slide (5). A first seat mounting plate (7) is slidably connected to the second slide (6). A locking plate (8) is welded to the upper part of the first seat mounting plate (7). Several locking grooves are evenly opened on the locking plate (8). A slider (19) is fixedly connected to the lower part of the first seat mounting plate (7). A DC motor (13) is fixedly connected to the rear side of the second slide (6). The output shaft of the DC motor (13) is fixedly connected to a lead screw (14). The lead screw (14) is connected to the slider (19) through a lead screw nut. A first connecting block (10) and a second connecting block (11) are welded to the second slide (6). A main shaft (9) is rotatably connected to the first connecting block (10) and the second connecting block (11). A pawl (16) is connected to the main shaft (9). A stepper motor (12) is welded to the second slide (6). The output shaft of the stepper motor (12) is fixedly connected to the main shaft (9).

2. The adjustment and limiting structure for a car seat according to claim 1, characterized in that: The lower part of the chuck (16) is welded with a first sleeve (15), which is sleeved on the main shaft (9) and welded to it.

3. The adjustment limiting structure for a car seat according to claim 1, characterized in that: A connecting plate (1) is welded between the first slide (5) and the second slide (6), and a second seat mounting plate (3) is slidably connected to the first slide (5).

4. The adjustment limiting structure for a car seat according to claim 3, characterized in that: Mounting holes (2) are provided on both the second seat mounting plate (3) and the first seat mounting plate (7). Heightening support plates (4) are respectively connected to the second seat mounting plate (3) and the first seat mounting plate (7) by bolts.

5. The adjustment limiting structure for a car seat according to claim 1, characterized in that: The second slide (6) is equipped with a lead screw bearing seat (20) at one end, and the end of the lead screw (14) is rotatably connected to the lead screw bearing seat (20).

6. The adjustment limiting structure for a car seat according to claim 1, characterized in that: The main shaft (9) is provided with a chuck positioning plate (17), and two second sleeves are welded to the lower part of the chuck positioning plate (17). The second sleeves are sleeved on the main shaft (9), and a torsion spring (18) is connected between the chuck positioning plate (17) and the second connecting block (11).

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