Automobile seat base slide rail fixing device

Abstract

The utility model provides a kind of automobile seat base slide rail fixing device, it is related to automobile slide rail fixing technical field, including fixed seat, drive mechanism is arranged in the fixed seat, clamping mechanism is connected on the drive mechanism, a plurality of limit pins are inserted into the slide rail body, annular groove is opened in the part of limit pin below slide rail body, the clamping plate of two sides is inserted in annular groove two sides respectively, the utility model is limited to the slide rail body by limit pin from inside slide rail body, clamping plate clamps slide rail body, the vertical direction of limit pin and slide rail body is positioned, the stability of slide rail body installation is improved, self-locking structure is formed by worm and worm wheel, guarantee the stability of clamping plate clamping, effectively reduce the connection slack caused by vibration in the process of slide rail adjustment or travel, compared with traditional bolt fixing or single side fixing, the stability of slide rail body is improved by inside and outside cooperative fixed mode.

Description

Technical Field

[0001] This utility model relates to the field of automotive slide rail fixing technology, and more specifically, to an automotive seat base slide rail fixing device. Background Technology

[0002] As a direct support component for drivers and passengers, the position adjustment function of car seats relies on the seat base slide rail. The stability of the slide rail's fixation to the vehicle body or seat base directly determines the smoothness of seat adjustment, driving safety, and the comfort of the driving experience. Therefore, the car seat base slide rail fixing device is one of the key core components of the seat system.

[0003] In the prior art, patent CN216969436U discloses a car seat slide rail fixing device, including a base, a connecting mechanism, and a slide rail mechanism. The connecting mechanism is fixedly connected to the top left and right sides of the base, and the slide rail mechanism is inserted into the top of the connecting mechanism. The top of the base has mounting holes arranged sequentially from left to right. Elastic elements are fixedly connected to the top left and right sides of the base and are located outside the connecting mechanism. This car seat slide rail fixing device has a reasonable structural design. By pulling down the limiting ring until the outer end of the fixing block separates from the inner wall of the limiting ring, it loses its limiting fixation. Through the rebound force of the fastening spring, the connecting column moves upward, squeezing the fixing block and moving it outward from the base column, causing it to disengage from the fixing groove. This allows for quick disassembly of the guide rail without the need to remove bolts, reducing the difficulty of the worker's work and greatly improving work efficiency.

[0004] Although the existing slide rail fixing device has solved the problem of difficult bolt removal, the following technical problems may still exist in actual use: the bottom of the slide rail is only connected and fixed, the fixing direction is unidirectional, and the bottom of the limiting ring that plays a limiting role is connected by an elastic element, which is easily displaced by external force, resulting in poor stability of the fixing device. Utility Model Content

[0005] The main objective of this invention is to provide a car seat base slide rail fixing device, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A car seat base slide rail fixing device includes a fixing base, a driving mechanism is provided inside the fixing base, a clamping mechanism is connected to the driving mechanism, the clamping mechanism includes a plurality of clamping plates slidably connected to both sides of the fixing base, a slide rail body is clamped in the clamping plates, a plurality of limiting pins are inserted into the slide rail body, and an annular groove is formed on the part of the limiting pin located below the slide rail body, and the clamping plates on both sides are respectively inserted into the annular groove.

[0008] Preferably, the driving mechanism includes a connecting sleeve, which is rotatably mounted inside the fixed base, and the bottom of the limiting pin is rotatably connected to the inner wall of the connecting sleeve.

[0009] Preferably, a worm gear is fixedly sleeved on the lower end of the connecting sleeve, and a worm is meshed with one side of the worm gear.

[0010] Preferably, the worm gear is fixedly mounted on the control rod, the control rod is rotatably connected to the fixed base, and a knob is fixedly connected to one end of the control rod.

[0011] Preferably, the clamps on both sides are symmetrical about the center of the limiting pin.

[0012] Preferably, racks are fixedly connected to the lower surfaces of both clamps, and gears are fixedly sleeved on the upper cylinder of the connecting sleeve.

[0013] Preferably, the gear meshes with the racks on both sides.

[0014] Preferably, a support plate is fixedly connected inside the fixed base, and the rack is slidably connected to the support plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The drive mechanism drives the gear to rotate, causing the racks on both sides to move relative to each other. During the movement of the racks, the inner plate of the clamp is inserted into the annular groove to fix the limit pin. The limit pin limits the slide rail body horizontally from inside the slide rail body. The clamp clamps the slide rail body on one hand to further limit the slide rail body, and on the other hand to fix the limit pin to limit the limit pin and the slide rail body vertically. This not only ensures the limiting effect of the limit pin, but also improves the stability of the slide rail body installation.

[0017] (2) By setting a worm gear, a self-locking structure can be formed to ensure the stability of the clamping plate and effectively reduce the loosening of the connection caused by vibration during the adjustment or travel of the slide rail.

[0018] (3) Compared with traditional bolt fixing or single-sided fixing, this solution improves the stability of the slide rail body by fixing it in a coordinated manner on the inside and outside. The transmission structure of worm gear and rack and pinion improves the efficiency of installing and disassembling the slide rail of the car seat base. In addition, this solution sets the knob at one end of the fixed seat, making the subsequent disassembly of the slide rail body simpler and more convenient. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the slide rail body of this utility model in its unassembled state.

[0021] Figure 3 This is a top view of the structure of this utility model;

[0022] Figure 4 This utility model Figure 3 A three-dimensional schematic diagram of a partial section of the AA cross-section;

[0023] Figure 5 This is a three-dimensional schematic diagram of a partial structure of the drive mechanism of this utility model;

[0024] Figure 6 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0025] Figure 7 This is a partial exploded view of the structure of this utility model.

[0026] In the diagram: 1. Fixed base; 2. Drive mechanism; 21. Knob; 22. Control lever; 23. Worm gear; 24. Worm wheel; 25. Connecting sleeve; 3. Clamping mechanism; 31. Clamping plate; 32. Rack; 33. Gear; 4. Limit pin; 41. Annular groove; 5. Slide rail body; 6. Support plate. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0028] like Figures 1-3 , Figure 4 , Figure 6 , Figure 7As shown in the figure, this utility model embodiment proposes a car seat base slide rail fixing device, including a fixed base 1, a driving mechanism 2 is provided in the fixed base 1, a clamping mechanism 3 is connected to the driving mechanism 2, the clamping mechanism 3 includes a plurality of clamping plates 31 slidably connected to both sides of the fixed base 1, a slide rail body 5 is clamped in the clamping plates 31, a plurality of limiting pins 4 are inserted into the slide rail body 5, and an annular groove 41 is opened in the part of the limiting pin 4 located below the slide rail body 5, and the clamping plates 31 on both sides are respectively inserted into the annular groove 41.

[0029] like Figure 1 , Figure 2 , Figures 4-7 As shown, the drive mechanism 2 includes a connecting sleeve 25, which is rotatably mounted inside the fixed base 1. The bottom of the limiting pin 4 is rotatably connected to the inner wall of the connecting sleeve 25. A worm gear 24 is fixedly sleeved on the lower end of the connecting sleeve 25. A worm 23 is meshed on one side of the worm gear 24. The worm 23 is fixedly mounted on the control rod 22. The control rod 22 is rotatably connected inside the fixed base 1. A knob 21 is fixedly connected to one end of the control rod 22.

[0030] In this application, the drive mechanism 2 can achieve external fixation and internal limiting of the slide rail body 5 by driving the relative movement of the two clamping plates 31. When installing the slide rail body 5, the slide rail body 5 is placed on the fixed base 1 so that the reserved mounting hole on the slide rail body 5 corresponds to the position of the connecting sleeve 25. Then, the limiting pin 4 is inserted into the reserved mounting hole, and the bottom of the limiting pin 4 fits against the inner wall of the connecting sleeve 25 to initially fix the slide rail body 5. Then, the knob 21 is turned to drive the control rod 22 to rotate, so that the worm 23 rotates synchronously. The worm 23 drives the worm wheel 24 and the connecting sleeve 25 to rotate. The connecting sleeve 25 drives the clamping mechanism 3 to move and clamp the slide rail body 5 to achieve further fixation. By setting the worm 23 and worm wheel 24, a self-locking structure can be formed to ensure the stability of the clamping of the clamping plate 31 and effectively reduce the loosening of the connection caused by vibration during the adjustment or travel of the slide rail.

[0031] like Figures 2-7 As shown, the two clamping plates 31 are symmetrical about the center of the limiting pin 4. The lower surfaces of the two clamping plates 31 are fixedly connected with racks 32. The upper end of the connecting sleeve 25 is fixedly sleeved with a gear 33. The gear 33 meshes with the racks 32 on both sides. The fixed base 1 is fixedly connected with a support plate 6. The racks 32 are slidably connected to the support plate 6.

[0032] In the specific setup, the racks 32 on both sides are also symmetrical about the center of the limiting pin 4. The limiting pin 4 is coaxial with the connecting sleeve 25. When the connecting sleeve 25 rotates, it will drive the gear 33 to rotate synchronously. The gear 33 drives the racks 32 on both sides to slide along the inner wall of the support plate 6, so that the clamping plates 31 on both sides are close to or far away from each other, thereby clamping or releasing the slide rail body 5.

[0033] The upper and lower surfaces of the inner plates of the two clamping plates 31 are slidably connected to the upper and lower surfaces of the annular groove 41, respectively. During the movement of the rack 32, the inner plates of the clamping plates 31 are inserted into the annular groove 41 to fix the limiting pin 4. The limiting pin 4 limits the slide rail body 5 horizontally from inside the slide rail body 5. The clamping plates 31 clamp the slide rail body 5 on the one hand to further limit the slide rail body 5, and on the other hand to fix the limiting pin 4 to limit the limiting pin 4 and the slide rail body 5 vertically. This not only ensures the limiting effect of the limiting pin 4, but also improves the stability of the slide rail body 5 installation.

[0034] Compared to traditional bolt fixing or unilateral fixing, this solution improves the stability of the slide rail body 5 by using a coordinated fixing method on both the inner and outer sides. The transmission structure of worm gear 23, worm wheel 24, rack 32, and gear 33 improves the efficiency of installing and disassembling the car seat base slide rail. Furthermore, this solution places the knob 21 at one end of the fixing base 1, making subsequent disassembly of the slide rail body 5 simpler and more convenient.

[0035] The working principle of this car seat base slide rail fixing device:

[0036] When fixing the slide rail body 5, place the slide rail body 5 on the fixing base 1, so that the reserved mounting hole on the slide rail body 5 corresponds to the position of the connecting sleeve 25. Then, insert the limiting pin 4 into the reserved mounting hole, and the bottom of the limiting pin 4 fits against the inner wall of the connecting sleeve 25 to initially fix the slide rail body 5. Then, turn the knob 21 to drive the control rod 22 to rotate, so that the worm 23 rotates synchronously. The worm 23 drives the worm wheel 24 and the connecting sleeve 25 to rotate. The gear 33 rotates synchronously with the connecting sleeve 25, driving the racks 32 on both sides and the clamping plates 31 to approach each other. One end of the clamping plate 31 is inserted into the annular groove 41 to limit the limiting pin 4 and the slide rail body 5 in the vertical direction until the clamping plates 31 on both sides clamp the slide rail body 5, thereby fixing the slide rail body 5.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A car seat base slide rail fixing device, comprising a fixing base (1), characterized in that: The fixed base (1) is provided with a driving mechanism (2), and the driving mechanism (2) is connected to a clamping mechanism (3). The clamping mechanism (3) includes several clamping plates (31) slidably connected to both sides of the fixed base (1). The clamping plates (31) clamp the slide rail body (5). Several limiting pins (4) are inserted into the slide rail body (5). The limiting pins (4) are provided with an annular groove (41) at the part below the slide rail body (5). The clamping plates (31) on both sides are respectively inserted into the annular groove (41).

2. The automobile seat base slide rail fixing device according to claim 1, characterized in that: The driving mechanism (2) includes a connecting sleeve (25), which is rotatably installed inside the fixed base (1), and the bottom of the limiting pin (4) is rotatably connected to the inner wall of the connecting sleeve (25).

3. The automobile seat base slide rail fixing device according to claim 2, characterized in that: A worm gear (24) is fixedly sleeved on the lower end of the connecting sleeve (25), and a worm (23) is meshed on one side of the worm gear (24).

4. The automobile seat base slide rail fixing device according to claim 3, characterized in that: The worm gear (23) is fixedly installed on the control rod (22), the control rod (22) is rotatably connected to the fixed base (1), and a knob (21) is fixedly connected to one end of the control rod (22).

5. The automobile seat base slide rail fixing device according to claim 1, characterized in that: The clamps (31) on both sides are symmetrical about the center of the limiting pin (4).

6. The automobile seat base slide rail fixing device according to claim 2, characterized in that: A rack (32) is fixedly connected to the lower surface of the clamping plates (31) on both sides, and a gear (33) is fixedly sleeved on the upper cylinder of the connecting sleeve (25).

7. The automobile seat base slide rail fixing device according to claim 6, characterized in that: The gear (33) meshes with the racks (32) on both sides.

8. The automobile seat base slide rail fixing device according to claim 7, characterized in that: The fixed base (1) is internally fixedly connected to a support plate (6), and the rack (32) is slidably connected to the support plate (6).

Images