Automobile seat sliding rail assembly

Abstract

The utility model discloses an automobile seat sliding rail assembly which comprises two lower rails, the interiors of the lower rails are connected with upper rails in a sliding mode, the upper surfaces of the two upper rails are fixedly connected through two connecting plates, the left ends and the right ends of the bottom walls of the lower rails are provided with first retainers, and the first retainers are provided with second retainers. Round holes in the upper surfaces of the first retainers are internally provided with first balls which are evenly distributed, the left inner side wall and the right inner side wall of the lower rail are provided with second retainers, the second retainers are internally provided with second balls which are evenly distributed, the upper end of the interior of the lower rail is provided with third retainers, and the third retainers are internally provided with third balls which are evenly distributed. According to the automobile seat sliding rail assembly, the upper rail and the lower rail are connected through the multiple sets of balls, the use effect is good, the service life of the automobile seat sliding rail assembly is long, meanwhile, the locking assembly is convenient to open, and the use convenience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, in particular to an automotive seat slide rail assembly. Background Art

[0002] The automotive seat slide rail is installed at the bottom of the automotive seat. During use, the front-back position of the seat is adjusted as needed to increase the use comfort of the automotive seat. The existing automotive seat slide rail assembly generally consists of an upper rail, a lower rail, balls and a locking assembly. The balls are generally installed at the connection of the side surfaces of the upper rail and the lower rail. The structure is simple and the use cost is low. However, there is generally a lack of connection and support at the upper and lower connections of the upper rail and the lower rail. Only the side balls are used for connection, and the contact area is small. Therefore, it is easy to cause wear and generate gaps, which in turn causes the seat to shake, affecting its own service life. For the locking unit of its slide rail, the locking part generally needs to be rotated and moved to release the lock. During the removal process, vertical and horizontal displacements are required. Therefore, during the process of adjusting the seat, it is necessary to push the seat to make a small horizontal displacement. It is rather laborious to open the locking assembly, affecting the convenience during use. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an automotive seat slide rail assembly. Multiple groups of balls are used to connect the upper rail and the lower rail, which has a good support and positioning effect, can reduce the sliding gap between the slide rails, avoid the shaking of the seat, has a good use effect and a long service life of its own. At the same time, the locking assembly is convenient to open and has good use convenience, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an automotive seat slide rail assembly, including a lower rail. The number of the lower rails is two. The upper rails are both slidably connected inside the lower rails. The upper surfaces of the two upper rails are fixedly connected through two connecting plates. At the left and right ends of the bottom wall of the lower rail, a first cage is provided respectively. Inside the round holes on the upper surface of the first cage, uniformly distributed first balls are installed respectively. On the left and right inner side walls of the lower rail, a second cage is provided respectively. Inside the second cages, uniformly distributed second balls are installed respectively. At the upper ends inside the lower rail, a third cage is provided respectively. Inside the third cages, uniformly distributed third balls are installed respectively. The first balls, the second balls and the third balls are all located between the lower rail and the upper rail. The upper rails are all vertically movably clamped with the front connecting plate. Multiple groups of balls are used to connect the upper rail and the lower rail, which has a good support and positioning effect, can reduce the sliding gap between the slide rails, avoid the shaking of the seat, has a good use effect and a long service life of its own. At the same time, the locking assembly is convenient to open and has good use convenience.

[0005] Further, arc-shaped grooves I are provided on the lower surface of the upper rail and the bottom wall of the lower rail, and the first balls are all located between two vertically corresponding arc-shaped grooves I. Arc-shaped grooves II are provided on the left and right inner side walls of the lower rail and the left and right inner side surfaces of the upper rail, and the second balls are all located between longitudinally adjacent arc-shaped grooves II, increasing the contact area and reducing wear.

[0006] Further, on one side of the upper end of the lower rail close to the horizontal center of the connecting plate, uniformly distributed card slots are provided. On the lower surface of the front connecting plate, symmetrically distributed sliding columns are provided. A support bar is slidably connected between the two sliding columns. Clamping columns are provided at both the left and right ends of the support bar, and the clamping columns are all movably clamped with the vertically corresponding card slots, facilitating the positioning of the upper rail.

[0007] Further, roller wheels are rotatably connected to the outer arc surfaces of the clamping columns, and the roller wheels are located inside the card slots, reducing the friction between the clamping columns and the card slots.

[0008] Further, spring pieces are provided inside the grooves on the upper surface of the support bar, and the upper ends of the spring pieces are slidably connected to the upper side wall of the front connecting plate, providing a downward acting force on the support bar.

[0009] Further, it further includes a day-shaped handle. The rear end of the day-shaped handle is rotatably connected to the front connecting plate, and the middle part of the day-shaped handle is slidably connected to the long sliding hole in the middle of the support bar, facilitating the control of the upward movement of the support bar.

[0010] Further, positioning plates are provided at both the front and rear ends of the upper rail, and a positioning column is provided in the middle of the lower rail. The positioning column is located between two longitudinally corresponding positioning plates, restricting the movement range of the upper rail.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The automotive seat slide rail assembly of the present utility model has the following advantages:

[0012] 1. The upper rail slides under the support of the first balls, the second balls and the third balls, reducing the friction between the upper rail and the lower rail. Multiple groups of balls connect the upper rail and the lower rail, having a good support and positioning effect, which can reduce the sliding gap between the slide rails, avoid the shaking of the seat, and has good use effect and long service life of itself.

[0013] 2. The support bar moves upward along the sliding column. The support bar drives the spring piece and the clamping column to move upward. The clamping column drives the roller wheel to separate from the card slot, and then the upper rail can be slid to adjust the position of the seat. When adjusting the seat, the clamping column moves upward and is vertically separated from the card slot. At the same time, the outer part of the clamping column is rotatably connected with a roller wheel, which can reduce the friction between the clamping column and the card slot, and thus the locking assembly is opened conveniently and the usability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the present utility model;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the lower rail of the present utility model;

[0016] Figure 3 It is a schematic enlarged structure diagram at position A of the present utility model;

[0017] Figure 4 It is a schematic enlarged structure diagram at position B of the present utility model;

[0018] Figure 5 It is a schematic enlarged structure diagram at position C of the present utility model;

[0019] Figure 6 It is a schematic enlarged structure diagram at position D of the present utility model.

[0020] In the figure: 1 lower rail, 2 upper rail, 3 connecting plate, 4 sliding column, 5 support bar, 6 clamping post, 7 clamping groove, 8 spring piece, 9 H-shaped handle, 10 roller, 11 cage one, 12 ball one, 13 arc groove one, 14 cage two, 15 ball two, 16 arc groove two, 17 cage three, 18 ball three, 19 positioning plate, 20 positioning post. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1-6, this embodiment provides a technical solution: an automotive seat slide assembly, including a lower rail 1. There are two lower rails 1. The upper rails 2 are slidably connected to the inside of each lower rail 1. The lower rail 1 is connected to the automotive carriage, and the automotive seat is installed on the upper rail 2. The upper surfaces of the two upper rails 2 are fixedly connected by two connecting plates 3. The connecting plates 3 connect and position the two upper rails 2. At the left and right ends of the bottom wall of the lower rail 1, there are first cages 11. Inside the circular holes on the upper surface of the first cages 11, evenly distributed first balls 12 are installed. On the left and right inner sidewalls of the lower rail 1, there are second cages 14. Inside the second cages 14, evenly distributed second balls 15 are installed. At the upper ends inside the lower rail 1, there are third cages 17. Inside the third cages 17, evenly distributed third balls 18 are installed. The third balls 18 are located between the lower rail 1 and the upper rail 2. The upper rail 2 slides under the support of the first balls 12, the second balls 15, and the third balls 18, reducing the friction between the upper rail 2 and the lower rail 1. At the same time, multiple groups of balls have a good support and positioning effect on the upper rail 2. Arc-shaped grooves 13 are provided on the lower surface of the upper rail 2 and the bottom wall of the lower rail 1. The first balls 12 are all located between two vertically corresponding arc-shaped grooves 13. Arc-shaped grooves 16 are provided on the left and right inner sidewalls of the lower rail 1 and the left and right inner side surfaces of the upper rail 2. The second balls 15 are all located between longitudinally adjacent arc-shaped grooves 16. The arc-shaped grooves 13 and 16 increase the contact area between the upper rail 2 and the lower rail 1 and the balls, thereby reducing wear and extending the service life. On one side of the upper end of the lower rail 1 near the horizontal center of the connecting plate 3, evenly distributed card slots 7 are opened. On the lower surface of the front connecting plate 3, symmetrically distributed sliding columns 4 are provided. A support bar 5 is slidably connected between the two sliding columns 4. The support bar 5 moves upward along the sliding columns 4. At the left and right ends of the support bar 5, there are clamping columns 6. The clamping columns 6 are all movably clamped with the vertically corresponding card slots 7. Rotating rollers 10 are rotatably connected to the outer arc surfaces of the clamping columns 6. The rollers 10 are located inside the card slots 7. The clamping columns 6 drive the rollers 10 to separate from the card slots 7, and then the upper rail 2 can be slid to adjust the position of the seat. Inside the grooves on the upper surface of the support bar 5, there are spring pieces 8. The upper ends of the spring pieces 8 are slidably connected to the upper sidewall of the front connecting plate 3. The support bar 5 drives the spring pieces 8 and the clamping columns 6 to move upward. The spring pieces 8 are elastically deformed under extrusion. The ends of the spring pieces 8 slide relative to the upper sidewall of the connecting plate 3. It also includes a day-shaped handle 9. The rear end of the day-shaped handle 9 is rotatably connected to the front connecting plate 3. The middle part of the day-shaped handle 9 is slidably connected to the long sliding hole in the middle of the support bar 5. When the day-shaped handle 9 is lifted upward, the day-shaped handle 9 rotates around the rotation hole at the rear end of the front connecting plate 3. The cross bar in the middle of the day-shaped handle 9 slides relative to the long sliding hole in the middle of the support bar 5. Positioning plates 19 are provided at the front and rear ends of the upper rail 2. A positioning column 20 is provided in the middle of the lower rail 1. The positioning column 20 is located between two longitudinally corresponding positioning plates 19. The positioning plates 19 limit the movement range of the upper rail 2 through the positioning column 20.

[0023] The working principle of the vehicle seat slide rail assembly provided by the present utility model is as follows: The lower rail 1 is connected to the vehicle compartment, and the vehicle seat is installed on the upper rail 2. When adjusting the seat, the "day"-shaped handle 9 is lifted upward. The "day"-shaped handle 9 rotates around the rotation hole at the rear end of the connecting plate 3 on the front side. The cross bar in the middle of the "day"-shaped handle 9 and the long sliding hole in the middle of the support bar 5 slide relative to each other, thereby driving the support bar 5 to move upward along the sliding column 4. The support bar 5 drives the spring piece 8 and the clamping column 6 to move upward. The spring piece 8 is squeezed and undergoes elastic deformation. The end of the spring piece 8 slides relative to the upper side wall of the connecting plate 3. The clamping column 6 drives the roller 10 to separate from the card slot 7. Then, the upper rail 2 can be slid to adjust the position of the seat. The upper rail 2 slides under the support of the first ball 12, the second ball 15, and the third ball 18, reducing the friction between the upper rail 2 and the lower rail 1. At the same time, multiple groups of balls have a good support and positioning effect on the upper rail 2. The first arc groove 13 and the second arc groove 16 increase the contact area between the upper rail 2 and the lower rail 1 and the balls, thereby reducing wear and extending the service life.

[0024] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A car seat slide rail assembly, comprising a lower rail (1), wherein the number of the lower rails (1) is two, the interior of each lower rail (1) is slidably connected to an upper rail (2), and the upper surfaces of the two upper rails (2) are fixedly connected via two connecting plates (3), characterized in that: The left and right ends of the bottom wall of the lower rail (1) are each provided with a retainer 1 (11), and the inside of the circular hole on the upper surface of the retainer 1 (11) is equipped with evenly distributed balls 1 (12); the left and right inner walls of the lower rail (1) are each provided with a retainer 2 (14), and the inside of the retainer 2 (14) is equipped with evenly distributed balls 2 (15); the upper end of the lower rail (1) is each provided with a retainer 3 (17), and the inside of the retainer 3 (17) is equipped with evenly distributed balls 3 (18); the balls 1 (12), 2 (15) and 3 (18) are each located between the lower rail (1) and the upper rail (2), and the upper rail (2) is vertically movably connected to the front connecting plate (3).

2. The vehicle seat slide rail assembly according to claim 1, characterized in that: The lower surface of the upper rail (2) and the bottom wall of the lower rail (1) are both provided with an arc groove 1 (13), and the ball 1 (12) is located between two vertically corresponding arc grooves 1 (13). The left and right inner walls of the lower rail (1) and the left and right inner surfaces of the upper rail (2) are both provided with an arc groove 2 (16), and the ball 2 (15) is located between the longitudinally adjacent arc grooves 2 (16).

3. The vehicle seat slide rail assembly according to claim 1, characterized in that: The upper end of the lower rail (1) is provided with evenly distributed slots (7) on one side close to the horizontal center of the connecting plate (3), and the lower surface of the front connecting plate (3) is provided with symmetrically distributed sliding columns (4), a support bar (5) is slidably connected between the two sliding columns (4), and the left and right ends of the support bar (5) are provided with locking columns (6), and the locking columns (6) are movably engaged with the corresponding vertical slots (7).

4. The automobile seat slide rail assembly according to claim 3, characterized in that: The outer arc surface of the clamping column (6) is rotatably connected to a roller (10), and the roller (10) is located inside the clamping groove (7).

5. The automobile seat slide rail assembly according to claim 3, characterized in that: A spring sheet (8) is provided inside the groove on the upper surface of the support bar (5), and the upper end of the spring sheet (8) is slidably connected to the upper side wall of the front connecting plate (3).

6. The automobile seat slide rail assembly according to claim 3, characterized in that: It also comprises a Japanese-shaped handle (9), the rear end of which is rotatably connected to the front connecting plate (3), and the middle part of which is slidably connected to the long sliding hole in the middle part of the supporting bar (5).

7. The vehicle seat slide rail assembly according to claim 1, characterized in that: The upper rail (2) is provided with positioning plates (19) at both the front and rear ends, and the lower rail (1) is provided with a positioning column (20) in the middle, the positioning column (20) being located between two corresponding positioning plates (19) in the longitudinal direction.

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