Automobile seat sliding rail structure

Abstract

The utility model discloses an automobile seat sliding rail structure, which relates to the technical field of automobile seat accessories, and comprises a sliding assembly and a power assembly, the sliding assembly comprises two groups of lower guide rails connected with an automobile bottom plate and two groups of upper guide rails connected with an automobile seat, the upper guide rails are sleeved on the lower guide rails in a sliding manner, and the power assembly is arranged on the lower guide rails. A rack is arranged at the top of the lower guide rail, teeth are arranged on the rack in the length extending direction of the lower guide rail, and the power assembly comprises two sets of adjusting gears rotationally connected in an inner cavity of the upper guide rail, two sets of servo drive motors, two sets of belt pulley transmission mechanisms and a connecting shaft. The sliding assembly and the power assembly are arranged, the power assembly adopts a double-servo driving motor to drive an adjusting gear to rotate and adjust, power is sufficient, symmetrical racks and the adjusting gear are assembled, and sliding resistance is even and stable, so that an upper guide rail slides stably and smoothly, gantry synchronization of the sliding assembly is achieved, and the position of an automobile seat is electrically adjusted; time and labor are saved, and rapidness and convenience are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat accessories, in particular to an automobile seat slide rail structure. Background Art

[0002] Seat slides are an important part of car seats. Common slides are mainly installed under the seats, so that the seats can be flexibly slid forward or backward to adjust the seat position according to personal habits to obtain a comfortable space. Seat slides are generally divided into manual slides and electric slides according to the drive. Manual slide adjustment is time-consuming and labor-intensive. With the development of technology, automotive electric slides are gradually being widely used. For this reason, we provide a new type of automotive seat slide structure. Utility Model Content

[0003] The utility model aims to provide a car seat slide rail structure for electric adjustment of the car seat.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a car seat slide rail structure, comprising a sliding assembly and a power assembly, wherein the sliding assembly comprises two sets of lower guide rails connected to the car floor and two sets of upper guide rails connected to the car seat, wherein the upper guide rails are slidably sleeved on the lower guide rails, a rack is arranged on the top of the lower guide rails, and teeth are arranged on the rack along the length extension direction of the lower guide rails;

[0005] The power assembly includes two groups of adjusting gears, two groups of servo drive motors, two groups of pulley transmission mechanisms and a connecting shaft that are rotatably connected in the inner cavity of the upper guide rail. The adjusting gears are arranged in parallel with the rack and mesh with each other. Both ends of the central axis of the adjusting gear pass through the upper guide rail through bearings respectively, and the connecting shaft is located between the two groups of adjusting gears and is coaxially arranged. Both ends of the connecting shaft are fixedly connected to the inner ends of the central axes of the two groups of adjusting gears respectively, and the outer ends of the two groups of central axes of the adjusting gears are fixedly connected to the driven wheels of the two groups of pulley transmission mechanisms respectively. The output ends of the two servo drive motors are fixedly connected to the driving wheels of the two groups of pulley transmission mechanisms respectively, and the pulley transmission mechanism is fixedly connected to the upper guide rail through the outer casing.

[0006] Preferably, a cross frame is fixedly connected between the two groups of upper guide rails.

[0007] Preferably, rolling steel balls are embedded in the inner wall of the upper guide rail, and the upper guide rail is slidably connected to the lower guide rail via the steel balls.

[0008] Preferably, the steel balls are embedded in the raceway of the inner wall of the upper guide rail.

[0009] Preferably, the steel balls are respectively supported upward on the arc surface of the lower end of the lower guide rail and abutted downward on the arc surface of the upper end of the lower guide rail.

[0010] The utility model has the following beneficial effects:

[0011] The utility model sets a sliding component and a power component. The power component adopts a double servo drive motor to drive the adjusting gear to rotate and adjust. The power is sufficient, the rack and the adjusting gear are symmetrically assembled, and the sliding resistance is uniform and stable, so that the upper guide rail slides smoothly and silkily, and the gantry synchronization of the sliding component is achieved. The electric adjustment of the car seat position saves time and effort, and is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the front view of the utility model;

[0013] Figure 2 It is a three-dimensional diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the sliding assembly of the utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of the power assembly of the utility model;

[0016] Figure 5 This is the assembly drawing of the upper guide rail of the utility model.

[0017] In the figure: 1. sliding assembly; 11. lower guide rail; 12. upper guide rail; 121. bearing; 122. steel ball; 123. raceway; 13. rack; 2. power assembly; 21. adjusting gear; 22. servo drive motor; 23. pulley transmission mechanism; 231. driven wheel; 232. driving wheel; 233. housing; 24. connecting shaft; 3. cross frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-5As shown, the utility model provides a technical solution: a car seat slide rail structure, including a sliding assembly 1 and a power assembly 2, the sliding assembly 1 includes two groups of lower guide rails 11 connected to the car floor and two groups of upper guide rails 12 connected to the car seat, the two groups of upper guide rails 12 are fixedly connected to the cross frame 3, the upper guide rail 12 is slidably sleeved on the lower guide rail 11, the inner wall of the upper guide rail 12 is embedded with rolling steel balls 122, the steel balls 122 are embedded in the raceway 123 of the inner wall of the upper guide rail 12, the steel balls 122 are respectively supported upward on the arc surface of the lower end of the lower guide rail 11 and abutted downward on the arc surface of the upper end of the lower guide rail 11, the upper guide rail 12 is slidably connected with the lower guide rail 11 through the steel balls 122, a rack 13 is arranged on the top of the lower guide rail 11, and the rack 13 is provided with teeth along the length extension direction of the lower guide rail 11;

[0020] The power assembly 2 includes two groups of adjusting gears 21, two groups of servo drive motors 22, two groups of pulley transmission mechanisms 23 and a connecting shaft 24 which are rotatably connected in the inner cavity of the upper guide rail 12. The adjusting gear 21 is arranged in parallel with the rack 13 and meshes with each other. Both ends of the central axis of the adjusting gear 21 pass through the upper guide rail 12 through bearings 121 respectively, and the connecting shaft 24 is located between the two groups of adjusting gears 21 and is coaxially arranged. Both ends of the connecting shaft 24 are respectively fixedly connected to the inner ends of the central axes of the two groups of adjusting gears 21, and the outer ends of the central axes of the two groups of adjusting gears 21 are respectively fixedly connected to the driven wheels 231 of the two groups of pulley transmission mechanisms 23. The output ends of the two groups of servo drive motors 22 are respectively fixedly connected to the driving wheels 232 of the two groups of pulley transmission mechanisms 23. The pulley transmission mechanism 23 is fixedly connected to the upper guide rail 12 through the outer shell 233. The servo drive motor 22 is a servo driver dedicated for gantry synchronization.

[0021] When in use, the dual servo drive motor 22 drives the adjusting gear 21 to rotate through the dual pulley transmission mechanism 23, and the sliding adjustment of the seat position by the upper guide rail 12 is achieved through the meshing of the adjusting gear 21 and the rack 13.

[0022] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car seat slide rail structure, comprising a slide assembly (1) and a power assembly (2), characterized in that: The sliding assembly (1) comprises two sets of lower guide rails (11) connected to the vehicle floor and two sets of upper guide rails (12) connected to the vehicle seat, the upper guide rails (12) are slidably mounted on the lower guide rails (11), a rack (13) is arranged on the top of the lower guide rails (11), and teeth are arranged on the rack (13) along the length extension direction of the lower guide rails (11); The power assembly (2) comprises two groups of adjusting gears (21), two groups of servo drive motors (22), two groups of pulley transmission mechanisms (23) and a connecting shaft (24) which are rotatably connected in the inner cavity of the upper guide rail (12). The adjusting gears (21) are arranged in parallel with the rack (13) and mesh with each other. Both ends of the central axis of the adjusting gear (21) pass through the upper guide rail (12) through bearings (121) respectively. The connecting shaft (24) is located between the two groups of adjusting gears (21) and is coaxially arranged. The two ends of the connecting shaft (24) are respectively fixedly connected to the inner ends of the central shafts of the two groups of adjusting gears (21); the outer ends of the central shafts of the two groups of adjusting gears (21) are respectively fixedly connected to the driven wheels (231) of the two groups of pulley transmission mechanisms (23); the output ends of the two groups of servo drive motors (22) are respectively fixedly connected to the driving wheels (232) of the two groups of pulley transmission mechanisms (23); and the pulley transmission mechanisms (23) are fixedly connected to the upper guide rail (12) through a housing (233).

2. The automobile seat slide rail structure according to claim 1, characterized in that: The two groups of upper guide rails (12) are fixedly connected with a cross frame (3).

3. The automobile seat slide rail structure according to claim 1, characterized in that: The inner wall of the upper guide rail (12) is embedded with rolling steel balls (122), and the upper guide rail (12) is slidably connected to the lower guide rail (11) via the steel balls (122).

4. The automobile seat slide rail structure according to claim 3, characterized in that: The steel ball (122) is embedded in a raceway (123) on the inner wall of the upper guide rail (12).

5. The automobile seat slide rail structure according to claim 3, characterized in that: The steel balls (122) are respectively supported upward on the arc surface at the lower end of the lower guide rail (11) and abutted downward on the arc surface at the upper end of the lower guide rail (11).

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