Automobile seat sliding rail

Abstract

The utility model discloses an automobile seat slide rail, which belongs to the technical field of automobile seats and comprises two slide rail seats and a driving shell, the driving shell is positioned between the two slide rail seats, a motor is fixedly mounted on the side surface of the driving shell, a lead screw is rotatably mounted in the driving shell, and a guide rail is mounted in the lead screw. An output shaft of the motor is fixedly connected with one end of a lead screw, a moving seat is installed on the outer surface of the lead screw in a threaded mode, connecting plates are fixedly installed on the left side face and the right side face of the moving seat, and channels are formed in the left side face and the right side face of a driving shell; the two sliding rail seats are arranged to be matched with one driving shell for use, the motors and the lead screws on the driving shell are matched to achieve horizontal movement of the seat mounting plates on the two sides, the two seat mounting plates can move through one lead screw, and compared with the mode that two motors are matched with two lead screws to achieve movement of the two seat mounting plates, the two seat mounting plates can move more conveniently. The movement precision is effectively reduced, and the friction loss phenomenon occurring when the two motors are matched with the two lead screws can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile seat, concretely relates to an automobile seat slide rail. BACKGROUND

[0002] With the improvement of the present automobile industry level, the automobile possession increases day by day, and the seat in the automobile is a very key component, and the seat directly influences the driving comfort, and different people need to adjust the seat when driving to reach the position suitable for oneself, and the seat is adjusted through the slide rail.

[0003] The existing seat slide rail is adjusted through the lead screw on two slide rails, but two slide rails need to be equipped with two lead screws, that is, two motors are needed to control two lead screws, and the control of two motors is difficult to achieve high-precision synchronization, and it is inevitable that there will be front and back differences, and small amplitude friction between the seat and the slide rail is prone to occur when adjusting, and long time will cause excessive wear, therefore, the utility model provides a kind of automobile seat slide rail. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of automobile seat slide rails, to solve the problem that the existing seat slide rail is adjusted through the lead screw on two slide rails in the above background technology, but two slide rails need to be equipped with two lead screws, that is, two motors are needed to control two lead screws, and the control of two motors is difficult to achieve high-precision synchronization, and it is inevitable that there will be front and back differences, and small amplitude friction between the seat and the slide rail is prone to occur when adjusting, and long time will cause excessive wear.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of automobile seat slide rail, including two slide rail seats and a drive shell, the drive shell is located between two slide rail seats, the side surface of the drive shell is fixedly installed with motor, the inside rotation of the drive shell is installed with lead screw, the output shaft of the motor is fixedly connected with one end of lead screw, the outer surface of the lead screw is screw-mounted with moving seat, the left and right sides of the moving seat are fixedly installed with connecting plate, the left and right sides of the drive shell are all set with passageway, the connecting plate passes through passageway and is fixedly installed with support plate, the left and right sides of the support plate are all fixedly installed with a plurality of outer cylinder bodies, the inner wall of the outer cylinder body is slidably installed with inner plate body, the inner plate body is fixedly installed with fixed screw at one end of outer cylinder body, the outer cylinder body surface is set with strip hole, the fixed screw passes through strip hole and the surface of fixed screw is screw-mounted with fixed nut, the end, away from outer cylinder body, of the inner plate body is fixedly installed with seat mounting plate, the seat mounting plate is slidably installed on the slide rail seat at corresponding position, the two ends of the slide rail seat and the two ends of the drive shell are all fixedly installed with assembly block, the assembly block is screw-mounted with assembly bolt.

[0006] The above solution uses two slide rails in conjunction with a drive housing. The motor and lead screw on the drive housing work together to achieve the horizontal movement of the seat mounting plates on both sides. One lead screw can move both seat mounting plates. Compared with two motors and two lead screws, the motion precision is effectively reduced, which can effectively reduce the friction loss that occurs when two motors and two lead screws work together. By setting an outer cylinder and an inner plate to work together, the overall length position can be adjusted by the movable setting of the inner plate and the outer cylinder. With the use of fixing screws, fixing nuts, collars and limit rods, the length adjustment and locking can be achieved, thereby adjusting the positional distance between the seat mounting plates on both sides. It is suitable for the installation of seats of different specifications, improving the versatility of use.

[0007] In the above scheme, it should be noted that the motor is electrically connected to an external power supply.

[0008] In a preferred embodiment, a plurality of guide bars are fixedly installed inside the drive housing, and a plurality of guide grooves are formed on the surface of the movable seat. The guide bars are slidably installed on the inner wall of the guide grooves at corresponding positions.

[0009] By using the above solution, the guide bar and guide groove are used together. When the motor starts and drives the lead screw to rotate, the moving seat will move under the action of the lead screw and slide on the surface of the guide bar through the guide groove. Therefore, it can play a good supporting role, making the moving seat more stable during movement and preventing it from tilting or shaking.

[0010] In a preferred embodiment, a collar is sleeved on the outside of the fixing screw, a limiting rod is fixedly installed on the lower surface of the collar, and a plurality of limiting grooves are formed on the surface of the outer cylinder, the limiting rod and the limiting grooves are used in conjunction.

[0011] Using the above scheme, the collar is used in conjunction with the limiting rod. When the fixing nut is tightened with the fixing screw, it will drive the collar to move the limiting rod, so that the limiting rod is inserted into the limiting groove, thereby realizing the overall length adjustment and fixation of the outer cylinder and the inner plate.

[0012] In a preferred embodiment, the surface of the inner plate is provided with a groove, and a spring is fixedly installed on the inner wall of the groove, and the spring is fixedly connected to the collar.

[0013] Using the above solution, the groove is used in conjunction with the spring. When the fixing nut is tightened and the fixing screw is tightened, the spring deforms as the collar drives the limiting rod to insert into the limiting groove. Therefore, when the fixing nut is tightened and the fixing screw is loosened, the elastic force of the spring can be used to drive the collar to quickly return to its original position, thereby driving the limiting rod to quickly disengage from the limiting groove.

[0014] In a preferred embodiment, the spring has a telescopic rod inside, and the two ends of the telescopic rod are fixedly connected to the inner wall of the groove and the collar, respectively.

[0015] By adopting the above solution, the telescopic rod provides support, preventing the collar from wobbling and ensuring smooth up-and-down movement of the collar and the limiting rod.

[0016] In a preferred embodiment, a trapezoidal slider is fixedly installed on the lower surface of the seat mounting plate, and a trapezoidal groove is provided on the inner wall of the slide rail seat, with the trapezoidal slider slidably installed on the inner wall of the trapezoidal groove.

[0017] By adopting the above solution, the trapezoidal slider and trapezoidal groove work together to ensure the stable sliding of the seat mounting plate and prevent it from tilting or wobbling.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This car seat slide rail uses two slide rail seats in conjunction with a drive housing. The motor and lead screw on the drive housing work together to achieve the horizontal movement of the seat mounting plates on both sides. One lead screw can achieve the movement of two seat mounting plates. Compared with two motors and two lead screws to achieve the movement of two seat mounting plates, the motion precision is effectively reduced, which can effectively reduce the friction loss that occurs when two motors and two lead screws work together.

[0020] This car seat slide rail uses an outer cylinder and an inner plate to work together. The inner plate and outer cylinder are movable, allowing for adjustment of the overall length. It is used with fixing screws, fixing nuts, collars, and limit rods to achieve length adjustment and locking, thereby adjusting the positional distance between the seat mounting plates on both sides. It is suitable for installing seats of different sizes, improving its versatility. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the cross-section of the drive housing of this utility model;

[0023] Figure 3 This is a structural schematic diagram of the cross-section of the slide rail seat of this utility model;

[0024] Figure 4 This is a schematic diagram of the outer cylinder and inner plate of this utility model;

[0025] Figure 5 This is a structural schematic diagram of the cross-section of the inner plate of this utility model;

[0026] Figure 6This is a structural diagram of the fixing screw and fixing nut of this utility model.

[0027] In the diagram: 1. Slide rail seat; 2. Drive housing; 3. Motor; 4. Lead screw; 5. Moving seat; 6. Connecting plate; 7. Support plate; 8. Outer cylinder; 9. Inner plate; 10. Fixing screw; 11. Fixing nut; 12. Seat mounting plate; 13. Assembly block; 14. Assembly bolt; 15. Guide bar; 16. Collar; 17. Limiting rod; 18. Telescopic rod; 19. Spring; 20. Trapezoidal slider. Detailed Implementation

[0028] Please see Figures 1-6 This utility model provides an automotive seat slide rail, including two slide rail seats 1 and a drive housing 2. The drive housing 2 is located between the two slide rail seats 1. A motor 3 is fixedly installed on the side of the drive housing 2, and a lead screw 4 is rotatably installed inside the drive housing 2. The output shaft of the motor 3 is fixedly connected to one end of the lead screw 4. A movable seat 5 is threaded onto the outer surface of the lead screw 4. Connecting plates 6 are fixedly installed on both the left and right sides of the movable seat 5. Channels are opened on both the left and right sides of the drive housing 2. The connecting plates 6 pass through the channels and are fixedly installed with support plates 7. Several... An outer cylinder 8 is formed, and an inner plate 9 is slidably installed on the inner wall of the outer cylinder 8. A fixing screw 10 is fixedly installed at one end of the inner plate 9 located on the outer cylinder 8. A strip hole is opened on the surface of the outer cylinder 8. The fixing screw 10 passes through the strip hole and a fixing nut 11 is installed on the threaded surface of the fixing screw 10. A seat mounting plate 12 is fixedly installed at the end of the inner plate 9 away from the outer cylinder 8. The seat mounting plate 12 is slidably installed on the slide rail seat 1 at the corresponding position. Assembly blocks 13 are fixedly installed at both ends of the slide rail seat 1 and both ends of the drive housing 2. Assembly bolts 14 are threaded on the assembly blocks 13.

[0029] By using two slide rail seats 1 in conjunction with a drive housing 2, the horizontal movement of the seat mounting plates 12 on both sides is achieved through the cooperation of the motor 3 and the lead screw 4 on the drive housing 2. One lead screw 4 can achieve the movement of both seat mounting plates 12. Compared with the two motors 3 and two lead screws 4, the movement precision is effectively reduced, which can effectively reduce the friction loss that occurs when two motors 3 and two lead screws 4 are in conjunction. By using an outer cylinder 8 and an inner plate 9, the overall length position can be adjusted by the movable setting of the inner plate 9 and the outer cylinder 8. With the help of fixing screws 10 and fixing nuts 11, as well as collars 16 and limit rods 17, the length adjustment and locking can be achieved, thereby adjusting the positional distance between the two seat mounting plates 12. It is suitable for the installation of seats of different specifications, improving the versatility of use.

[0030] Several guide bars 15 are fixedly installed inside the drive housing 2, and several guide grooves are opened on the surface of the movable seat 5. The guide bars 15 are slidably installed on the inner wall of the guide groove at the corresponding position. When the motor 3 starts and drives the lead screw 4 to rotate, the movable seat 5 will move under the action of the lead screw 4 and slide on the surface of the guide bars 15 through the guide groove. Therefore, it can play a good support effect, making the movable seat 5 more stable during movement and preventing it from tilting or shaking.

[0031] A collar 16 is fitted around the outside of the fixing screw 10. A limiting rod 17 is fixedly installed on the lower surface of the collar 16. Several limiting grooves are opened on the surface of the outer cylinder 8. The limiting rod 17 is used in conjunction with the limiting grooves. The collar 16 is used in conjunction with the limiting rod 17. When the fixing nut 11 is tightened onto the fixing screw 10, it will drive the collar 16 to move the limiting rod 17, so that the limiting rod 17 is inserted into the limiting groove, thereby realizing the overall length adjustment and fixation of the outer cylinder 8 and the inner plate 9.

[0032] The inner plate 9 has a groove on its surface, and a spring 19 is fixedly installed on the inner wall of the groove. The spring 19 is fixedly connected to the collar 16. The groove is used in conjunction with the spring 19. When the fixing nut 11 is tightened with the fixing screw 10, the collar 16 drives the limiting rod 17 to insert into the limiting groove, and the spring 19 deforms. Therefore, when the fixing nut 11 is tightened with the fixing screw 10, the elastic force of the spring 19 can be used to drive the collar 16 to quickly reset, thereby driving the limiting rod 17 to quickly disengage from the limiting groove.

[0033] The spring 19 has a telescopic rod 18 inside. The two ends of the telescopic rod 18 are fixedly connected to the inner wall of the groove and the collar 16, respectively. The telescopic rod 18 provides support to prevent the collar 16 from shaking and ensures that the up and down movement of the collar 16 and the limiting rod 17 is smooth.

[0034] A trapezoidal slider 20 is fixedly installed on the lower surface of the seat mounting plate 12. A trapezoidal groove is provided on the inner wall of the slide rail seat 1. The trapezoidal slider 20 is slidably installed on the inner wall of the trapezoidal groove. The trapezoidal slider 20 and the trapezoidal groove cooperate to ensure the stable sliding of the seat mounting plate 12 and prevent it from tilting or shaking up and down.

[0035] In use, first adjust the distance between the seat mounting plates 12 on both sides according to the seat specifications. During adjustment, unscrew the fixing nut 11. The spring force of the spring 19 will drive the collar 16 to move the limiting rod 17, causing the limiting rod 17 to disengage from the limiting groove. At this point, the inner plate 9 is unlocked. Support the inner plate 9 and slide it within the outer cylinder 8. After sliding to the appropriate position, tighten the fixing nut 11. The fixing nut 11 will then drive the collar 16 to move the limiting rod 17 and insert it into the corresponding limiting groove, thus achieving the inner plate opening. Locking plate 9 allows for position adjustment of seat mounting plate 12. After adjustment, assembly block 13 and assembly bolt 14 are used to fix slide rail seat 1 and drive housing 2. After fixing, the seat is installed and assembled with seat mounting plate 12. When seat adjustment is required after assembly, motor 3 is started. Motor 3 drives lead screw 4 to rotate, which in turn drives moving seat 5 to move connecting plate 6, which in turn drives support plate 7 to move. This, in turn, drives seat mounting plate 12 to move through outer cylinder 8 and inner plate 9, thus achieving seat adjustment.

Claims

1. A car seat slide rail, characterized in that: It includes two slide rail seats (1) and a drive housing (2). The drive housing (2) is located between the two slide rail seats (1). A motor (3) is fixedly installed on the side of the drive housing (2). A lead screw (4) is rotatably installed inside the drive housing (2). The output shaft of the motor (3) is fixedly connected to one end of the lead screw (4). A movable seat (5) is threaded on the outer surface of the lead screw (4). A connecting plate (6) is fixedly installed on both the left and right sides of the movable seat (5). A channel is opened on both the left and right sides of the drive housing (2). A support plate (7) is fixedly installed through the channel on the connecting plate (6). Several outer cylinders (8) are fixedly installed on both the left and right sides of the support plate (7). An inner plate (9) is slidably installed on the inner wall of the outer cylinder (8). A fixing screw (10) is fixedly installed on one end of the inner plate (9) located on the outer cylinder (8). A strip hole is opened on the surface of the outer cylinder (8). The fixing screw (10) passes through the strip hole and a fixing nut (11) is threaded on the surface of the fixing screw (10). A seat mounting plate (12) is fixedly installed on one end of the inner plate (9) away from the outer cylinder (8). The seat mounting plate (12) is slidably installed on the slide rail seat (1) at the corresponding position. Assembly blocks (13) are fixedly installed on both ends of the slide rail seat (1) and both ends of the drive housing (2). Assembly bolts (14) are threaded on the assembly blocks (13).

2. The automotive seat slide rail according to claim 1, characterized in that: The drive housing (2) has several guide bars (15) fixedly installed inside, and the surface of the movable seat (5) has several guide grooves. The guide bars (15) are slidably installed on the inner wall of the guide groove at the corresponding position.

3. The automotive seat slide rail according to claim 1, characterized in that: The fixing screw (10) is fitted with a collar (16), and a limiting rod (17) is fixedly installed on the lower surface of the collar (16). The outer cylinder (8) has several limiting grooves on its surface, and the limiting rod (17) is used in conjunction with the limiting grooves.

4. The automotive seat slide rail according to claim 1, characterized in that: The inner plate (9) has a groove on its surface, and a spring (19) is fixedly installed on the inner wall of the groove. The spring (19) is fixedly connected to the collar (16).

5. The automotive seat slide rail according to claim 4, characterized in that: The spring (19) has a telescopic rod (18) inside, and the two ends of the telescopic rod (18) are fixedly connected to the inner wall of the groove and the collar (16) respectively.

6. The automotive seat slide rail according to claim 1, characterized in that: A trapezoidal slider (20) is fixedly installed on the lower surface of the seat mounting plate (12). A trapezoidal groove is provided on the inner wall of the slide rail seat (1). The trapezoidal slider (20) is slidably installed on the inner wall of the trapezoidal groove.

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