Improved structure of two-section vertical steel ball sliding rail

Abstract

The utility model discloses an improved structure of a two-section vertical steel ball sliding rail, which belongs to the technical field of steel ball sliding rails, and comprises an outer rail, an inner rail and a plurality of steel ball sliding rails, the inner rail is a long strip with a rectangular section, two connecting strips extending into the outer rail are arranged on the inner rail, and movable gaps are formed between the two connecting strips and the two inner side walls of the inner rail respectively; the multiple sets of supporting ball mechanisms are arranged in the two movable gaps, and the supporting ball mechanisms clamp the connecting strips and the inner side wall of the outer rail; the multiple sets of supporting ball mechanisms are arranged between the inner rail and the outer rail, the supporting ball mechanisms share multidirectional stress between the inner rail and the outer rail, the inner rail and the outer rail have a good rolling supporting effect, and even if the stress direction between the inner rail and the outer rail is changed, the inner rail and the outer rail can not be damaged. The whole steel ball sliding rail can slide smoothly, and the using effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of steel ball slide rail technology, and particularly relates to an improved structure of a two-section vertical steel ball slide rail. Background Technology

[0002] Drawer slides, also known as guide rails or slide tracks, are hardware connecting parts fixed to the cabinet body of furniture to allow drawers or cabinet panels to move in and out.

[0003] Chinese Patent (CN201721279980.9) discloses an improved structure for a two-section vertical ball bearing slide rail, comprising an outer rail, a ball bearing nest, an inner rail, and a nylon synchronous rope loop. The outer rail has an insertion hole at its midpoint, and the ball bearing nest has U-shaped grooves at both ends, with rubber sleeves fitted into the U-grooves. One end of the rubber sleeve is an open fixing part. The inner rail has an exit hole, and the synchronous rope loop is fitted onto the opening fixing parts of the rubber sleeves at both ends of the ball bearing nest. Its two ends are fixed to the outer surfaces of the insertion hole and the exit hole respectively with glue. The insertion hole and the exit hole are respectively provided with fixing plugs. When the ball bearing nest and the inner rail slide synchronously up and down along the outer rail, the synchronous rope loop slides freely relative to the surface of the rubber sleeve. When the ball bearing nest and the inner rail slide into position, the synchronous rope loop is in a tensioned state.

[0004] Currently, the outer and inner rails of the ball bearing slide rail are supported by two rows of ball bearings. When the force exerted by the inner rail on the outer rail occurs, it affects the rotation of the ball bearings, thus reducing the smoothness of the ball bearing slide rail. Utility Model Content

[0005] The purpose of this utility model is to propose an improved structure for a two-section vertical steel ball slide rail in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an improved structure for a two-section vertical steel ball slide rail, comprising:

[0007] The outer track is a long strip with a concave cross-section;

[0008] The inner track is a long strip with a rectangular cross-section. Two connecting strips are provided on the inner track and extend into the outer track. The two connecting strips form movable gaps with the two inner sidewalls of the inner track, respectively.

[0009] Multiple sets of supporting ball bearing mechanisms are provided within the two movable gaps. The supporting ball bearing mechanisms engage the inner sidewalls of the connecting strip and the outer track, and abut against the inner bottom walls of the inner track and the outer track.

[0010] As a further description of the above technical solution:

[0011] The supporting ball bearing mechanism includes a limiting plate, a middle ball bearing, and two end ball bearings. The limiting plate is located within the movable gap. Arc-shaped grooves are provided on the inner wall of the outer track and the connecting strip. The middle ball bearing is connected to the middle part of the limiting plate and is engaged in the corresponding arc-shaped groove. The two end ball bearings are respectively tumbling connected to the outer track and the inner track. Arc-shaped slots are provided at opposite ends of the limiting plate, and the two end ball bearings are respectively engaged in the two arc-shaped slots.

[0012] As a further description of the above technical solution:

[0013] The limiting plate is composed of two symmetrical plates connected by fixing bolts.

[0014] As a further description of the above technical solution:

[0015] The inner bottom wall of the outer track and the inner track are each provided with two ball bearing grooves. The end balls are tumblingly connected in the ball bearing grooves, and the end of the limiting plate extends into the ball bearing grooves.

[0016] As a further description of the above technical solution:

[0017] Both ends of the inner track and both ends of the outer track are provided with plugs, which block the ball bearing groove.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting multiple sets of supporting ball bearing mechanisms between the inner and outer tracks, the supporting ball bearing mechanisms distribute the multi-directional forces between the inner and outer tracks, and have a good rolling support effect on the inner and outer tracks. Even if the force direction between the inner and outer tracks changes, the entire ball bearing slide can slide smoothly and has a good performance.

[0020] 2. In this utility model, the middle ball bearings play a role in limiting and rolling support of the inner track within the outer track, while the end ball bearings play a role in bearing weight and rolling support, so that the slide rail can still slide smoothly when the force direction changes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an improved two-section vertical steel ball slide rail.

[0022] Figure 2 An exploded view of an improved two-section vertical ball bearing slide rail structure.

[0023] Figure 3 A cross-sectional view of an improved two-section vertical ball bearing slide rail structure. Figure 1 .

[0024] Figure 4 A cross-sectional view of an improved two-section vertical ball bearing slide rail structure. Figure 2 .

[0025] Figure 5 for Figure 4 A magnified view of part A in the middle.

[0026] Legend:

[0027] 1. Outer track; 2. Inner track; 3. Connecting strip; 4. Movement clearance; 5. Supporting ball mechanism; 51. Limiting plate; 52. Middle ball; 53. End ball; 6. Arc groove; 7. Arc slot; 8. Ball slide groove; 9. Plug. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 This utility model provides a technical solution: an improved structure for a two-section vertical ball bearing slide rail, comprising:

[0030] Outer track 1 is a long strip with a concave cross-section;

[0031] The inner track 2 is a long strip with a rectangular cross-section. Two connecting strips 3 are provided on the inner track 2, extending into the interior of the outer track 1. The two connecting strips 3 form movable gaps 4 between the two inner sidewalls of the inner track 2 respectively.

[0032] Multiple sets of supporting ball bearing mechanisms 5 are provided in the two movable gaps 4. The supporting ball bearing mechanisms 5 lock the connecting strip 3 and the inner sidewall of the outer track 1, and the supporting ball bearing mechanisms 5 abut against the inner bottom wall of the inner track 2 and the outer track 1.

[0033] The supporting ball bearing mechanism 5 includes a limiting plate 51, a middle ball bearing 52, and two end balls bearing 53. The limiting plate 51 is located within the movable gap 4. Arc-shaped grooves 6 are provided on the inner wall of the outer track 1 and the connecting strip 3. The middle ball bearing 52 is connected to the middle part of the limiting plate 51 and is engaged in the corresponding arc-shaped groove 6. The two end balls bearing 53 are respectively rolled and connected to the outer track 1 and the inner track 2. Arc-shaped slots 7 are provided at opposite ends of the limiting plate 51. The two end balls bearing 53 are respectively engaged in the two arc-shaped slots 7. The middle ball bearing 52 plays the role of limiting and rolling support for the inner track 2 within the outer track 1, while the end balls bearing 53 play the role of bearing weight and rolling support, so that the slide rail can still slide smoothly when the force direction changes.

[0034] The limiting plate 51 is composed of two symmetrical plates connected by fixing bolts, which facilitates the assembly of the middle ball bearing 52.

[0035] The inner bottom wall of the outer track 1 and the inner track 2 are both provided with two ball grooves 8. The end ball 53 is rotatably connected in the ball groove 8. The end of the limiting plate 51 extends into the ball groove 8, which has a good limiting effect on the sliding of the end ball 53.

[0036] Both ends of the inner track 2 and both ends of the outer track 1 are provided with plugs 9. The plugs 9 block the ball groove 8 to prevent the end balls 53 from falling off the inner track 2 or the outer track 1, thereby preventing the supporting ball mechanism 5 from falling off the inner track 2 and ensuring that the supporting ball mechanism 5 can always provide good support for the sliding between the inner track 2 and the outer track 1.

[0037] Working principle: First, during assembly, the inner rail 2 is inserted into the outer rail 1, with a movable gap 4 between the connecting strip 3 and the outer rail 1. Two symmetrical plates are connected by fixing bolts to form a limiting plate 51. The middle ball bearing 52 is clamped in the limiting plate 51. The two end balls 53 are clamped in the arc-shaped grooves 7 at both ends of the limiting plate 51 to form a supporting ball bearing mechanism 5. Next, the two end balls 53 of the supporting ball bearing mechanism 5 are aligned with the corresponding ball bearing grooves 8 of the inner rail 2 and the outer rail 1 and inserted. At this time, the middle ball bearing 52 is inserted into the... The supporting ball mechanism 5 can be assembled in the two corresponding arc grooves 6. Multiple sets of supporting ball mechanisms 5 are assembled in the two movable gaps 4 in sequence. Then, plugs 9 are installed at both ends of the inner rail 2 and the outer rail 1 to complete the assembly of the slide rail. Finally, when the inner rail 2 and the outer rail 1 slide relative to each other, the middle ball 52 plays the role of limiting the inner rail 2 in the outer rail 1 and providing rolling support, while the end ball 53 plays the role of bearing weight and providing rolling support, so that the slide rail can still slide smoothly when the force direction changes.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An improved structure for a two-section vertical ball bearing slide rail, characterized in that: include: The outer track (1) is a long strip with a concave cross-section; The inner track (2) is a long strip with a rectangular cross-section. Two connecting strips (3) are provided on the inner track (2) and extend into the outer track (1). The two connecting strips (3) form movable gaps (4) between the two inner sidewalls of the inner track (2). Multiple sets of supporting ball bearing mechanisms (5) are provided in the two movable gaps (4). The supporting ball bearing mechanisms (5) lock the inner sidewall of the connecting strip (3) and the outer track (1), and the supporting ball bearing mechanisms (5) abut against the inner bottom wall of the inner track (2) and the outer track (1).

2. The improved structure of a two-section vertical steel ball slide rail according to claim 1, characterized in that, The supporting ball mechanism (5) includes a limiting plate (51), a middle ball (52) and two end balls (53). The limiting plate (51) is located in the movable gap (4). The inner wall of the outer track (1) and the connecting strip (3) are provided with arc grooves (6). The middle ball (52) is connected to the middle part of the limiting plate (51) and is inserted into the corresponding arc groove (6). The two end balls (53) are respectively connected to the outer track (1) and the inner track (2). The two ends of the limiting plate (51) are provided with arc grooves (7). The two end balls (53) are respectively inserted into the two arc grooves (7).

3. The improved structure of a two-section vertical steel ball slide rail according to claim 2, characterized in that, The limiting plate (51) is composed of two symmetrical plates connected by fixing bolts.

4. The improved structure of a two-section vertical steel ball slide rail according to claim 3, characterized in that, The inner bottom wall of the outer track (1) and the inner track (2) are provided with two ball grooves (8), the end ball (53) is tumbling connected in the ball groove (8), and the end of the limiting plate (51) extends into the ball groove (8).

5. The improved structure of a two-section vertical steel ball slide rail according to claim 4, characterized in that, Both ends of the inner track (2) and both ends of the outer track (1) are provided with plugs (9), which block the ball groove (8).

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