Steel ball assembling structure for automobile seat sliding rail assembly

Abstract

The utility model relates to a steel ball assembly structure for an automobile seat slide rail assembly, which belongs to the technical field of automobile seats and comprises an outer slide rail and an inner slide rail arranged on the inner side of the outer slide rail, and a steel ball assembly for supporting the inner slide rail is arranged in the outer slide rail. The steel ball assembly comprises fixing bases fixed to the two ends of the outer sliding rail in an inserted mode, and clamping rods are arranged on the opposite sides of the two fixing bases. According to the steel ball assembling structure for the automobile seat sliding rail assembly, the outer sliding rail is used for bearing the inner sliding rail, meanwhile, the steel ball assembly is matched for supporting and limiting the inner sliding rail, and the inner sliding rail slides on the top of the rolling steel ball; and meanwhile, the auxiliary steel balls are matched with the limiting plates to limit the inner sliding rails, the positioning plates limit the rolling steel balls, and the fixing seats limit the two ends of the positioning plates, so that a stable structure is integrally formed, and the stability of the whole structure is guaranteed while assembling is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, concretely is a steel ball assembly structure for automobile seat slide rail assembly. BACKGROUND

[0002] The automobile seat slide rail assembly is a complex system integrating mechanical strength, adjustment accuracy and safety performance, and usually needs to be matched with a steel ball structure to ensure the stability of the slide rail during sliding.

[0003] The Chinese patent with publication number CN207416607U discloses a steel ball assembly structure for automobile seat slide rail assembly, which comprises an analog outer slide rail for cooperating with an inner slide rail. In the cooperating state, an analog steel ball space accommodating the steel ball is formed between the two. The size of the analog outer slide rail is configured such that the size of the analog steel ball space gradually decreases along the length direction of the analog outer slide rail, and the steel ball can be interference-fitted in the smallest analog steel ball space and clearance-fitted in the largest analog steel ball space.

[0004] The steel ball assembly structure disclosed in the utility model assembles the slide rail assembly by loading the inner slide rail, the steel ball and the steel ball retainer into the analog outer slide rail, then pushing the three from the large-size end of the analog outer slide rail to the small-size end, and then pushing the three into the actual outer slide rail to complete the assembly. This makes the assembly of the slide rail assembly simple and easy to implement, effectively avoids damage to the slide rail assembly during assembly, and to some extent, solves the smoothness of the slide rail during use. However, the structure of the steel ball is not additionally limited, and a certain degree of deviation may occur during rotation of the steel ball, which reduces the stability of the slide rail during movement. Therefore, a steel ball assembly structure for automobile seat slide rail assembly is proposed. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a steel ball assembly structure for automobile seat slide rail assembly, which has the advantages of good stability and solves the problem of low stability of the steel ball during rotation in the structure of the seat slide rail assembly.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a steel ball assembly structure for automobile seat slide rail assembly, comprising an outer slide rail and an inner slide rail arranged on the inner side of the outer slide rail, and a steel ball assembly arranged inside the outer slide rail to support the inner slide rail.

[0007] The steel ball assembly comprises two fixed seats inserted and fixed at both ends of the outer slide rail, and a clamping rod is arranged on the opposite side of each fixed seat. A plurality of rolling steel balls are slidingly connected to the inner sides of both sides of the outer slide rail. A positioning plate is arranged on the top outer side of each rolling steel ball. Limiting plates are fixed to the bottom of both sides of the inner slide rail. A plurality of auxiliary steel balls are arranged on the top of each limiting plate.

[0008] Further, the outer slide rail is a concave structure, the inner slide rail is a π-shaped structure matched with the outer slide rail, and the inner slide rail is longitudinally embedded in the inner part of the outer slide rail and is in sliding connection with the outer slide rail.

[0009] Further, the fixing seat is fixed with a clamping sleeve on the opposite side, the inner bottom wall of the clamping sleeve is fixed with a limiting block abutting against the inner slide rail, and the bottom of the opposite end of the clamping rod is fixedly installed with the limiting block.

[0010] Further, the inner bottom wall of the outer slide rail is provided with an arc-shaped notch matched with the rolling steel ball on both sides, and the outer slide rail between the positioning plate and the two arc-shaped notches is in sliding connection.

[0011] Further, the top surface of the positioning plate is provided with a clamping wedge matched with the clamping rod on both ends, and the bottom surface of the positioning plate is provided with a plurality of tapered notches for limiting the rolling steel ball on both sides.

[0012] Further, the inner top wall of the outer slide rail is provided with a clamping notch on both sides, the upper end of the limiting plate is embedded in the inner part of the clamping notch, and the top of the limiting plate is provided with a plurality of fan-shaped notches.

[0013] Further, the rolling steel ball vertically penetrates the tapered notch to the top outside of the positioning plate, and the top of the rolling steel ball is in sliding connection with the positioning plate.

[0014] Further, the auxiliary steel ball is embedded in the inner part of the fan-shaped notch and is in sliding connection with the limiting plate, and the auxiliary steel ball is located in the inner part of the clamping notch and is in sliding connection with the outer slide rail.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] 1. The steel ball assembly structure for the automobile seat slide rail assembly, the inner slide rail is supported and limited by the outer slide rail and the steel ball assembly, the inner slide rail slides on the top of the rolling steel ball, the inner slide rail is limited by the auxiliary steel ball and the limiting plate, the rolling steel ball is limited by the limiting plate, and the two ends of the limiting plate are limited by the fixing seat, so that a stable structure is formed, assembly is facilitated, and the stability of the overall structure is ensured.

[0017] 2. The steel ball assembly structure for the automobile seat slide rail assembly, the limiting plate is limited by the auxiliary steel ball on the outer side of the inner wall of the inner slide rail, the stability of the inner slide rail in the sliding process is ensured, the rolling steel ball is limited in the inner part of the outer slide rail by the limiting plate, the position of the rolling steel ball is limited during the movement of the inner slide rail, and the problem of deviation of the rolling steel ball during the movement of the inner slide rail is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the utility model;

[0019] Figure 2 is a section view of the utility model;

[0020] Figure 3 is a perspective view of the steel ball assembly connecting structure of the utility model.

[0021] In the drawing: 1, outer slide rail; 2, inner slide rail; 3, steel ball assembly; 31, fixed seat; 32, clamping rod; 33, rolling steel ball; 34, positioning plate; 35, limiting plate; 36, auxiliary steel ball; 37, clamping wedge. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figure 1 In the embodiment, the steel ball assembly 3 includes fixed seats 31 fixedly connected at both ends of the outer slide rail 1, the opposite sides of the two fixed seats 31 are each provided with a clamping rod 32, the inner sides of both sides of the outer slide rail 1 are each slidably connected with a plurality of rolling steel balls 33, the top outer side of the rolling steel ball 33 is provided with a positioning plate 34, the bottom of both sides of the inner slide rail 2 is each fixed with a limiting plate 35, and the top of the limiting plate 35 is provided with a plurality of auxiliary steel balls 36.

[0024] Please refer to Figures 2 to 3 In the embodiment, the outer slide rail 1 is a concave structure, the inner slide rail 2 is a π-shaped structure matched with the outer slide rail 1, the inner slide rail 2 is longitudinally embedded in the inner side of the outer slide rail 1 and slidably connected with the outer slide rail 1, the outer slide rail 1 wraps the inner slide rail 2, and the inner slide rail 2 can preliminarily and simply slide on the inner side of the outer slide rail 1, the opposite sides of the fixed seat 31 are each fixed with a clamping sleeve for wrapping and fixing the outer slide rail 1, the inner bottom wall of the clamping sleeve is fixed with a limiting block abutting against the inner slide rail 2, and the bottom of the opposite end of the clamping rod 32 is fixedly installed with the limiting block, the two ends of the outer slide rail 1 are nested by the fixed seat 31, the nesting of the two ends of the outer slide rail 1 is realized, the inner slide rail 2 is prevented from sliding out of the inner side of the outer slide rail 1, and the outer slide rail 1 is convenient to disassemble in the later period.

[0025] In the embodiment, the outer slide rail 1 is a concave structure, the inner slide rail 2 is a π-shaped structure matched with the outer slide rail 1, the inner slide rail 2 is longitudinally embedded in the inner side of the outer slide rail 1 and slidably connected with the outer slide rail 1, the outer slide rail 1 wraps the inner slide rail 2, and the inner slide rail 2 can preliminarily and simply slide on the inner side of the outer slide rail 1, the opposite sides of the fixed seat 31 are each fixed with a clamping sleeve for wrapping and fixing the outer slide rail 1, the inner bottom wall of the clamping sleeve is fixed with a limiting block abutting against the inner slide rail 2, and the bottom of the opposite end of the clamping rod 32 is fixedly installed with the limiting block, the two ends of the outer slide rail 1 are nested by the fixed seat 31, the nesting of the two ends of the outer slide rail 1 is realized, the inner slide rail 2 is prevented from sliding out of the inner side of the outer slide rail 1, and the outer slide rail 1 is convenient to disassemble in the later period.

[0026] In the embodiment, the inner bottom wall of the outer slide rail 1 is provided with an arc-shaped notch on both sides for cooperating with the rolling steel ball 33. The positioning plate 34 is slidingly connected with the outer slide rail 1 between the two arc-shaped notches. The two arc-shaped notches are used to limit the rotating position of the rolling steel ball 33, which facilitates assembly. The top surface of the front and rear ends of the positioning plate 34 is provided with a clamping wedge 37 for cooperating with the clamping rod 32. The clamping rod 32 is embedded in the clamping wedge 37. The clamping rod 32 can fix the fixing seat 31 at both ends of the positioning plate 34, and the fixing seat 31 can press the positioning plate 34 against the inner bottom wall of the outer slide rail 1. The bottom surface of the positioning plate 34 is provided with a plurality of tapered notches on both sides for limiting the rolling steel ball 33. The tapered notches press the rolling steel ball 33 inside the arc-shaped notch, so that the rolling steel ball 33 can only rotate at a specified position, avoiding the rolling steel ball 33 from deviating during rotation.

[0027] In the embodiment, the inner top wall of the outer slide rail 1 is provided with a clamping notch on both sides. The upper end of the limiting plate 35 is embedded in the clamping notch. The top of the limiting plate 35 is provided with a plurality of fan-shaped notches. The rolling steel ball 33 vertically penetrates the tapered notch to the top outside of the positioning plate 34. The top of the rolling steel ball 33 is slidingly connected with the positioning plate 34. The auxiliary steel ball 36 is embedded in the fan-shaped notch and slidingly connected with the limiting plate 35. The auxiliary steel ball 36 is located in the clamping notch and slidingly connected with the outer slide rail 1.

[0028] The working principle of the above embodiment is as follows:

[0029] The arc-shaped notch is provided on both sides of the inner bottom wall of the outer slide rail 1 to place the rolling steel ball 33. The rolling steel ball 33 supports the bottom of the inner slide rail 2. During movement of the inner slide rail 2, the rolling steel ball 33 rotates to ensure that the inner slide rail 2 can smoothly slide along the inner side of the outer slide rail 1. The fan-shaped notch on the top of the limiting plate 35 supports the auxiliary steel ball 36. During movement of the inner slide rail 2, the auxiliary steel ball 36 rotates in the clamping notch while being limited on the top of the limiting plate 35, so that the inner slide rail 2 slides more smoothly along the inner side of the outer slide rail 1. The clamping rod 32 of the fixing seat 31 is clamped into the clamping wedge 37. When the fixing seat 31 is inserted and fixed at both ends of the outer slide rail 1, the positioning plate 34 can be pressed against the inner bottom wall surface of the outer slide rail 1. At the same time, the tapered notch of the positioning plate 34 presses the rolling steel ball 33 inside the arc-shaped notch of the outer slide rail 1, which can only self-rotate at a specified position. This avoids the inner slide rail 2 from moving the rolling steel ball 33 during movement, which affects the overall stability, thereby solving the problem of low stability of the steel ball in the structure of the seat slide rail assembly.

[0030] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application.

Claims

1. A steel ball assembly structure for an automotive seat slide rail assembly, comprising an outer slide rail (1) and an inner slide rail (2) disposed inside the outer slide rail (1), characterized in that: The outer slide rail (1) is provided with a steel ball assembly (3) that supports the inner slide rail (2); The steel ball assembly (3) includes a fixing seat (31) that is inserted and fixed at both ends of the outer slide rail (1). Each of the two fixing seats (31) has a locking rod (32) on one side opposite to the other. Several rolling steel balls (33) are slidably connected to both sides of the inner slide rail (1). A positioning plate (34) is provided on the outer side of the top of the rolling steel balls (33). Limiting plates (35) are fixed on both sides of the bottom of the inner slide rail (2). Several auxiliary steel balls (36) are provided on the top of the limiting plate (35).

2. The steel ball assembly structure for an automotive seat slide rail assembly according to claim 1, characterized in that: The outer slide rail (1) has a concave structure, and the inner slide rail (2) has a π-shaped structure that is used in conjunction with the outer slide rail (1). The inner slide rail (2) is longitudinally embedded inside the outer slide rail (1) and is slidably connected to the outer slide rail (1).

3. The steel ball assembly structure for an automotive seat slide rail assembly according to claim 1, characterized in that: Each of the fixed bases (31) has a sleeve fixed on one side opposite to the outer slide rail (1) for wrapping and fixing. The inner bottom wall of the sleeve is fixed with a limiting block that abuts against the inner slide rail (2). The bottom of the opposite end of the locking rod (32) is fixedly installed with the limiting block.

4. The steel ball assembly structure for an automotive seat slide rail assembly according to claim 1, characterized in that: The inner bottom wall of the outer slide rail (1) is provided with arc-shaped grooves on both sides to cooperate with the rolling steel ball (33), and the positioning plate (34) is slidably connected to the outer slide rail (1) between the two arc-shaped grooves.

5. The steel ball assembly structure for an automotive seat slide rail assembly according to claim 1, characterized in that: The top surfaces of both ends of the positioning plate (34) are provided with positioning wedges (37) for use with the positioning rod (32), and the bottom surfaces of the positioning plate (34) are provided with several conical grooves for limiting the rolling steel ball (33).

6. A steel ball assembly structure for an automotive seat slide rail assembly according to claim 5, characterized in that: The inner top walls on both sides of the outer slide rail (1) are provided with clamping slots. The upper end of the limiting plate (35) is embedded in the clamping slot, and the top of the limiting plate (35) is provided with several fan-shaped slots.

7. A steel ball assembly structure for an automotive seat slide rail assembly according to claim 5, characterized in that: The rolling steel ball (33) vertically penetrates the conical groove to the top outer side of the positioning plate (34), and the top of the rolling steel ball (33) is slidably connected to the positioning plate (34).

8. A steel ball assembly structure for an automotive seat slide rail assembly according to claim 7, characterized in that: The auxiliary steel ball (36) is embedded inside the fan-shaped slot and is slidably connected to the limiting plate (35). The auxiliary steel ball (36) is located inside the clamping slot and is slidably connected to the outer slide rail (1).

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