Simple and practical linear guide rail capable of conveniently replacing balls

Abstract

The utility model belongs to the field of automotive trim functional parts, and particularly relates to a simple and practical linear guide rail with balls convenient to replace, which comprises an inner rail plate assembly and an outer rail plate assembly, the opening side of the inner rail plate assembly is clamped inside the opening side of the outer rail plate assembly, and the inner rail plate assembly slides back and forth along the axial direction of the outer rail plate assembly. The outer rail plate assembly comprises an outer rail plate, a plurality of balls, a ball clamping groove and a ball groove soft rubber pad, the ball groove soft rubber pad is buckled in the middle of the ball clamping groove, the balls are rotationally buckled on the two sides of the ball clamping groove, the ball clamping groove is formed in the outer rail plate, and the ball groove soft rubber pad is located between the outer rail plate and the ball clamping groove. And the inner rail plate assembly is clamped in the outer rail plate by being buckled on the ball clamping grooves. The ball clamping grooves and the balls can be conveniently and rapidly replaced, and the manufacturing precision is high.

Description

Technical Field

[0001] This utility model belongs to the field of automotive interior functional components, specifically relating to a simple, practical, and easily replaceable linear guide rail with ball bearings. Background Technology

[0002] With the development of the automotive industry, linear guide drawers, as an important component of automotive interior parts, have a direct impact on passenger use. Linear guides are a type of drawer where balls roll linearly within ball grooves between inner and outer rails, allowing the drawer platform to move easily and with high precision along the rails. Linear guides typically place the balls within ball grooves. To prevent the balls from slipping out of the inner and outer rails during movement and affecting product usability, current market products often use bosses on the inner and outer rails for limiting movement and preventing the balls from sliding out. During installation, nylon cable ties are cut, and screws are used at the limiting holes to mount the product onto the transmission belt of the matching machinery. This method has lower manufacturing precision and higher cost. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, this utility model provides a simple, practical, and convenient linear guide rail with easily replaceable ball bearings, facilitating quick replacement of ball bearing slots and balls, and boasting high manufacturing precision.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a simple, practical, and easily replaceable linear guide rail, comprising an inner rail plate assembly and an outer rail plate assembly. The open side of the inner rail plate assembly is engaged with the inside of the open side of the outer rail plate assembly, and the inner rail plate assembly slides back and forth along the axial direction of the outer rail plate assembly. The outer rail plate assembly includes an outer rail plate, a plurality of balls, a ball bearing groove, and a ball bearing groove soft rubber pad. The ball bearing groove soft rubber pad is snapped into the middle of the ball bearing groove, and the plurality of balls are rotatably snapped into both sides of the ball bearing groove. The ball bearing groove is installed inside the outer rail plate, and the ball bearing groove soft rubber pad is located between the outer rail plate and the ball bearing groove. The inner rail plate assembly is engaged with the inside of the outer rail plate by snapping onto the ball bearing groove.

[0005] Furthermore, a baffle perpendicular to the axial direction of the outer rail plate is provided in the middle of the rear part of the outer rail plate, and a rubber buffer sleeve is fitted on the baffle plate.

[0006] Furthermore, several grooves are provided on both sides of the ball bearing groove to fit the ball bearing. The grooves enclose the ball bearing and allow it to rotate within them. Grooves are also provided on both sides of the ball bearing groove along the axial direction. The grooves are located inside the grooves on both sides. The two sides of the inner rail plate assembly opening are respectively engaged in the grooves on both sides. The ball bearing groove has notches on both the front and rear sides in the middle. The soft rubber pad of the ball bearing groove is snapped onto the notches on the front and rear sides.

[0007] Furthermore, the inner rail plate assembly includes an inner rail plate and a nut. An inner rail screw mounting point is provided in the middle of the rear part of the inner rail plate, and the nut is embedded in the inner rail screw mounting point. The inner rail plate and the outer rail plate are respectively provided with inner plate pin pre-installation and outer plate pin pre-installation in the middle of the front part of the inner rail plate and the outer rail plate. An outer rail screw mounting point is provided in the middle of the rear part of the outer rail plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] 1. The ball bearing groove of this utility model encloses the ball bearing, preventing it from falling out during disassembly and making it easier to install a new ball bearing groove, thus improving the convenience of replacing product functional components.

[0010] 2. The inner rail screw mounting point and outer rail screw mounting point of this utility model are in the form of insert nuts. If the screws are loose and need to be replaced, it is more practical than drilling holes in the outer rail plate in the traditional way, thus reducing the cost of using the slide rail.

[0011] 3. The present invention has a termination suspension structure between the inner rail plate and the outer rail plate, which can be selected by consumers in specific situations, increasing the product's functional versatility. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is an exploded view of the present invention;

[0014] Figure 3 This is a schematic diagram of the ball bearing groove structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the inner rail plate assembly structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the outer rail plate assembly structure of this utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the present invention in its closed state;

[0018] Figure 7 This is a schematic diagram of the structure of the present invention when opened to its maximum stroke.

[0019] Figure 8 for Figure 7 Sectional view at point AA;

[0020] Figure 9 for Figure 8 Enlarged view at point E in the middle;

[0021] Figure 10 This is a schematic diagram of the structure of this utility model when it is installed on a drawer and a cabinet;

[0022] Figure 11 for Figure 10 Sectional view at point BB;

[0023] Figure 12 for Figure 11 Enlarged view at point C;

[0024] Figure 13 for Figure 11 Enlarged view of point D in the middle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-13 This utility model provides the following technical solution: a simple, practical, and easily replaceable linear guide rail, including an inner rail assembly and an outer rail assembly. The inner rail assembly is installed on the drawer 8, and the outer rail assembly is installed on the overall cabinet 9. Both the inner and outer rail assemblies have an opening on one side. The opening side of the inner rail assembly is engaged with the opening side of the outer rail assembly, and the inner rail assembly slides back and forth along the axial direction of the outer rail assembly, thus allowing the drawer 8 to slide on the cabinet 9. The outer rail assembly includes an outer rail 2, several balls 3, ball bearing grooves 4, and ball bearing groove soft rubber pads 5. The ball bearing groove soft rubber pads 5 pass through the bottom surface of the ball bearing groove 4 and then snap onto the middle of the ball bearing groove 4. The several balls 3 rotate and snap onto both sides of the ball bearing groove 4. The slot 4 is installed inside the outer rail plate 2. The ball groove soft rubber pad 5 is located between the outer rail plate 2 and the ball groove 4. The inner rail plate assembly is snapped into the outer rail plate 2 by the ball groove 4. When the drawer 8 is pulled out or pushed in, the inner rail plate 1 on the drawer 8 moves axially along the ball groove 4 and the outer rail plate 2, and also drives the balls 3 and the ball groove 4 to rotate and slide together toward the rear or front end of the outer rail plate 2. At the same time, the ball groove soft rubber pad 5 is also driven by the ball groove 4 to make synchronous movements. This utility model has high manufacturing precision, and the ball groove 4 snaps in several balls 3. When replacing the ball groove 4 or the balls 3 thereon, it is only necessary to remove the inner rail plate assembly and the ball groove 4 in sequence, and then replace them. During replacement, the balls 3 will not fall off randomly.

[0027] Specifically, a baffle 21 perpendicular to the axis of the outer rail plate 2 is provided in the middle of the rear part of the outer rail plate 2. A rubber buffer sleeve 6 is sleeved on the baffle 21. When the drawer 8 is pulled out to the limit position, the ball groove 4 and the ball groove soft rubber pad 5 also slide to the rear end of the outer rail plate 2. At this time, the ball groove soft rubber pad 5 is limited by the rubber buffer sleeve 6 and stops sliding. Moreover, the ball groove soft rubber pad 5 does not make a sound when it hits the rubber buffer sleeve 6. At this time, the front end of the inner rail plate 1 is located at the rear end of the outer rail plate 2, and the inner rail plate 1 is suspended on the outer rail plate 2, which increases the functional versatility of the product.

[0028] Specifically, the ball bearing groove 4 has several grooves 41 on both sides that are adapted to the ball bearing 3. The grooves 41 enclose the ball bearing 3 and allow the ball bearing 3 to rotate within the grooves 41. The grooves 41 prevent the ball bearing 3 from falling out when the ball bearing groove 4 is disassembled, and make installation more convenient when a new ball bearing groove 4 needs to be replaced. The ball bearing groove 4 also has grooves 42 on both sides along the axial direction. The grooves 42 are located inside the grooves 41 on both sides. When the ball bearing groove 4 is installed on the outer rail plate 2, the opening of the grooves 42 is aligned with the opening of the outer rail plate 2. The two sides of the opening of the inner rail plate assembly are respectively engaged in the grooves 42 on both sides. When the inner rail plate assembly slides in the grooves 42, it also drives the ball bearing groove 4, the ball bearing 3 and the ball bearing groove soft rubber pad 5 to slide together. The ball bearing groove 4 has notches 43 on both the front and rear sides in the middle. The ball bearing groove soft rubber pad 5 is snapped into the notches 43 on the front and rear sides.

[0029] Specifically, the inner rail assembly includes an inner rail plate 1 and a nut 7. An inner rail screw mounting point 11 is located in the middle of the rear of the inner rail plate 1, and the nut 7 is embedded in the inner rail screw mounting point 11. An inner plate pin pre-installation 12 and an outer plate pin pre-installation 22 are respectively located in the middle of the front of the inner rail plate 1 and the outer rail plate 2, extending outwards. An outer rail screw mounting point 23 is located in the middle of the rear of the outer rail plate 2. The inner rail plate 1 is pre-installed on the drawer 8 via the inner plate pin pre-installation 12 at the front end, and then mounted on the drawer 8 via the inner rail screw mounting point at the rear. 11 is fixed to the drawer 8 by nuts 7 and screws. The outer rail plate 2 is pre-installed on the cabinet 9 by the outer plate pin 22 at the front end, and then fixed to the cabinet 9 by nuts 7 and screws through the outer rail screw mounting point 23 at the rear. The inner plate pin pre-installation 12 and the outer plate pin pre-installation 22 can be adjusted in width according to the side wall thickness of the drawer 8 and the cabinet 9 respectively. This utility model only requires screw fastening, which is easy to install. When the screw hole is damaged, only the insert nut 7 needs to be replaced, which reduces the cost of use.

[0030] The installation and movement process of this utility model is as follows: First, the nut 7 is embedded in the inner rail screw mounting point 11 at the rear of the inner rail plate 1 to assemble the inner rail plate assembly. Next, the soft rubber pad 5 of the ball groove is snapped onto the recess 43 on the front and rear sides of the ball groove 4. Then, the ball 3 is placed in the groove 41 on both sides of the ball groove 4, and the groove 41 encloses the ball 3 to form the ball groove assembly. Next, the ball groove assembly is installed inside the opening of the outer rail plate 2. Then, the end of the outer rail plate 2 is bent and the baffle 21 is erected to limit the movement in the X direction. Then, the rubber buffer sleeve 6 is put on the baffle 21 to form the outer rail plate assembly. Next, the two sides of the opening of the inner rail plate 1 are engaged with the grooves 42 on both sides of the ball bearing slot 4, so that the two sides of the opening of the inner rail plate 1 are engaged with the inside of the opening of the outer rail plate 2. In this way, the linear guide rail is installed. Finally, the inner rail plate 1 is pre-installed on the drawer 8 through the inner plate pin 12 at the front end, and then fixed to the drawer 8 through the inner rail screw mounting point 11 at the rear end with nuts 7 and screws. The outer rail plate 2 is pre-installed on the cabinet 9 through the outer plate pin 22 at the front end, and then fixed to the cabinet 9 through the outer rail screw mounting point 23 at the rear end with nuts 7 and screws. In this way, the assembly is completed. When drawer 8 needs to be pulled out or pushed in, the inner rail plate 1 on drawer 8 moves axially along the ball bearing groove 4 and the outer rail plate 2, and also drives the ball bearing 3 and the ball bearing groove 4 to slide linearly towards the rear or front end of the outer rail plate 2. At the same time, the soft rubber pad 5 of the ball bearing groove is also driven by the ball bearing groove 4 to move synchronously. When drawer 8 is pulled out to the limit position, the ball bearing groove 4 and the soft rubber pad 5 of the ball bearing groove also slide to the rear end of the outer rail plate 2. At this time, the soft rubber pad 5 of the ball bearing groove is limited by the rubber buffer sleeve 6 and stops sliding. The ball bearing groove 4 will not fall off. The soft rubber pad 5 of the ball bearing groove and the rubber buffer sleeve 6 form a suspension termination limit structure, realizing that the drawer 8 is pulled out to the maximum limit position and is suspended and locked, increasing the product's functional versatility. When the ball bearing groove 4 or the ball bearing 3 is damaged and needs to be replaced, simply remove the inner rail plate assembly and the ball bearing groove 4 in sequence. Since the ball bearing 3 is engaged in the groove 41, the ball bearing 3 will not fall off during replacement, making replacement convenient.

[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A simple, practical, and easily replaceable ball bearing linear guide, comprising an inner rail plate assembly and an outer rail plate assembly, wherein the open side of the inner rail plate assembly is engaged inside the open side of the outer rail plate assembly, and the inner rail plate assembly slides back and forth along the axial direction of the outer rail plate assembly, characterized in that, The outer rail assembly includes an outer rail plate (2), a plurality of balls (3), a ball bearing groove (4), and a ball bearing groove soft rubber pad (5). The ball bearing groove soft rubber pad (5) is snapped in the middle of the ball bearing groove (4), and the plurality of balls (3) are rotated and snapped in the sides of the ball bearing groove (4). The ball bearing groove (4) is installed inside the outer rail plate (2), and the ball bearing groove soft rubber pad (5) is located between the outer rail plate (2) and the ball bearing groove (4). The inner rail assembly is snapped into the outer rail plate (2) by snapping onto the ball bearing groove (4).

2. The linear guide rail with simple, practical, and easily replaceable ball bearings as described in claim 1, characterized in that, A baffle (21) perpendicular to the axial direction of the outer rail plate (2) is provided in the middle of the rear part of the outer rail plate (2), and a rubber buffer sleeve (6) is sleeved on the baffle (21).

3. A simple, practical, and easily replaceable ball bearing linear guide according to claim 2, characterized in that, The ball bearing groove (4) has several grooves (41) on both sides that are adapted to the ball bearing (3). The grooves (41) enclose the ball bearing (3) and the ball bearing (3) rotates in the grooves (41). The ball bearing groove (4) also has grooves (42) on both sides along the axial direction. The grooves (42) are located inside the grooves (41) on both sides. The two sides of the opening of the inner rail plate assembly are respectively engaged in the grooves (42) on both sides. The ball bearing groove (4) has notches (43) on both the front and rear sides. The ball bearing groove soft rubber pad (5) is snapped onto the notches (43) on the front and rear sides.

4. A simple, practical, and easily replaceable ball bearing linear guide according to claim 3, characterized in that, The inner rail plate assembly includes an inner rail plate (1) and a nut (7). An inner rail screw mounting point (11) is provided in the middle of the rear part of the inner rail plate (1). The nut (7) is embedded in the inner rail screw mounting point (11). An inner plate pin pre-installation (12) and an outer plate pin pre-installation (22) are respectively provided in the middle of the front part of the inner rail plate (1) and the outer rail plate (2). An outer rail screw mounting point (23) is provided in the middle of the rear part of the outer rail plate (2).

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