Drawer guide rail structure of switch cabinet

Abstract

The utility model discloses a switch cabinet drawer guide rail structure which comprises a partition plate, a drawer body and a strip-shaped rail, the partition plate is fixedly arranged in a switch cabinet, the strip-shaped rail is fixedly arranged on the partition plate, and the bottom of the drawer body is in contact with the strip-shaped rail and is connected with the strip-shaped rail in a sliding fit mode. The drawer further comprises a limiting structure used for limiting the drawer body to move in the linear direction of the strip-shaped rails. According to the utility model, the strip-shaped rails designed at the bottom of the drawer body are adopted to realize the sliding fit with the drawer, so that the occupation of the space on the two sides of the drawer is effectively avoided, the fit degree of the drawer and the interior of the switch cabinet is better, and the drawer is more stably accommodated; due to the arrangement of the strip-shaped rail sliding grooves and the universal balls, the moving action of the drawer is smoother and more stable, the stable position relation between the drawer and the strip-shaped rails is further guaranteed through the limiting structures, the drawer stably enters and exits in the direction of the strip-shaped rails, and the conditions of deviation and movement are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of switch cabinet equipment and relates to a drawer guide rail structure of a switch cabinet. Background Art

[0002] In low-voltage switchgear, the assembly of movable drawers is mainly used to facilitate the installation, transfer, daily maintenance, etc. of some electrical equipment, and it is convenient for users to quickly disassemble and assemble through the movable drawers.

[0003] The traditional drawer movable structure in a switch cabinet is usually designed as a fixed sliding fit. Through the relative fit and relative sliding between sheet metal slide rails, or the fit of rollers and slide rails. Since the drawer with many electrical components installed has a large self-weight, the traditional sliding fit such as sheet metal slide rails will cause too large relative friction between the surfaces of the sheet metal due to the large weight, resulting in jamming during the moving process. And the roller slide rails are usually designed on both sides of the drawer, causing unnecessary gap to occupy the cabinet space, and the load-bearing capacity of the rollers is limited, and it is difficult to ensure stability during long-term use, and lateral deviation and crosstalk are likely to occur. Summary of the Utility Model

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a drawer guide rail structure of a switch cabinet.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A drawer guide rail structure of a switch cabinet includes a partition board, a drawer body and a strip rail. The partition board is fixedly arranged in the switch cabinet, the strip rail is fixedly arranged on the partition board, the bottom of the drawer body contacts and is slidably connected with the strip rail, and further includes a limiting structure for restricting the linear movement of the drawer body along the strip rail.

[0007] Further, the limiting structure includes a chute arranged at the top of the strip rail. The chute is arranged along the linear direction of the strip rail, and the chute is recessed on the surface of the strip rail to form a U-shaped structure. A universal ball for rolling along the chute is arranged at the bottom of the drawer body.

[0008] Further, the universal ball includes a hemispherical seat and a ball member. The hemispherical seat is fixedly connected with the drawer body, and a ball cavity for accommodating the ball member is arranged in the hemispherical seat.

[0009] Further, the limiting structure further includes a limiting hook plate. One side edge of the strip rail along the linear direction is provided with a limiting convex edge. A certain height space is formed between the limiting convex edge and the partition board. One end of the limiting hook plate is fixedly connected with the drawer body, and the other end extends into the height space.

[0010] Further, the number of the strip-shaped rails is set to two, and they are arranged in parallel and opposite.

[0011] Further, screw holes for passing screws are formed in the strip-shaped rails, and the tops of the screw holes are designed as counterbores.

[0012] In summary, the beneficial effects of the present utility model are as follows:

[0013] The present utility model realizes the sliding fit with the drawer by means of the strip-shaped rails designed at the bottom of the drawer body, effectively avoiding the occupation of the space on both sides of the drawer, making the fit between the drawer and the switch cabinet better, and thus forming a more stable accommodation for the drawer; the arrangement of the strip-shaped rail chutes and the universal ball bearings makes the movement of the drawer smoother and more stable, and further ensures the stable positional relationship between the drawer and the strip-shaped rails through the limiting structure, enabling the drawer to enter and exit stably along the direction of the strip-shaped rails and reducing the situations of deviation and crosstalk. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model.

[0015] Figure 2 is Figure 1 a schematic structural view of the partition board and the strip-shaped rail part in

[0016] Figure 3 is Figure 2 a lateral front view in

[0017] Figure 4 is a schematic structural view of the strip-shaped rail.

[0018] Figure 5 is a schematic structural view of the universal ball bearing.

[0019] Figure 6 is a schematic structural view of the limiting hook plate.

[0020] Reference numerals in the figures: 1, drawer; 11, limiting hook plate; 2, partition board; 3, strip-shaped rail; 31, chute; 32, screw hole; 33, limiting convex edge; 41, hemispherical seat; 42, ball member. Specific Embodiments

[0021] The following specific examples illustrate the embodiments of the present utility model. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0022] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation. The types, quantities and proportions of the components in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0023] All directional indications (such as up, down, left, right, front, back, horizontal, vertical...) in the embodiments of the present utility model are only used to explain the relative position relationship, movement conditions, etc. between components in a certain specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0024] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present utility model may actually be an approximate parallel relationship, and the vertical relationship may actually be an approximate vertical relationship.

[0025] The present utility model provides a drawer guide rail structure for switch cabinets, which is used for the movable connection between the drawer 1 body in the switch cabinet and the corresponding installed partition 2.

[0026] Refer to Figure 1 , the partition 2 is fixedly arranged in the switch cabinet and can be fixed with the cross beam or column in the switch cabinet. The drawer 1 body is arranged on the partition 2, and the partition 2 provides support for the drawer 1 body.

[0027] Refer to Figure 2 , the guide rail structure includes a strip rail 3. The strip rail 3 is arranged on the partition 2, and the straight line direction of the strip rail 3 is set along the pulling direction of the drawer 1 body. The number of the strip rails 3 is set to at least two, and they are arranged in parallel with a set spacing, and the bottom of the drawer 1 body is supported by the two strip rails 3.

[0028] The strip rail 3 is fixedly connected to the partition 2. Refer to Figure 4 , a plurality of screw holes 32 are opened on the strip rail 3, and corresponding holes or grooves are opened on the partition 2. The strip rail 3 and the partition 2 are fastened by screws in cooperation with nuts. Among them, the opening of the screw hole 32 at the top position of the strip rail adopts a counterbore design to accommodate the nut part of the screw, so that the nut of the screw does not protrude above the top surface of the strip rail 3, thereby effectively preventing the screw from rubbing against the bottom plate of the drawer 1 body.

[0029] In order to correctly match the drawer 1 body with the strip rail 3 and make the drawer 1 body move smoothly along the strip rail 3, universal balls are arranged at the bottom of the drawer 1 body. Refer to Figure 5, the universal ball includes a hemispherical seat 41 and a ball member 42. A spherical cavity for partially accommodating the ball member 42 is formed in the hemispherical seat 41, enabling the ball member 42 to roll freely within the spherical cavity. The hemispherical seat 41 is fixedly connected to the bottom of the drawer 1 body, and the ball member 42 abuts against the top surface of the strip rail 3.

[0030] Furthermore, a sliding groove 31 for the ball member 42 to slide or roll is provided on the top surface of the strip rail 3 along a straight line direction. The projection cross-section of the sliding groove 31 in the straight line direction is arc-shaped or U-shaped, enabling the ball member 42 to be retained within the sliding groove 31 under the self-weight of the drawer 1 body, reducing lateral offset or even derailment.

[0031] On one side of the strip rail 3 arranged along the straight line direction, a limiting convex edge 33 protrudes horizontally. A certain height of space is formed between the limiting convex edge 33 and the partition 2. In this embodiment, the two strip rails 3 on the partition 2 are symmetrically arranged, and the limiting convex edges 33 on the two strip rails 3 are arranged opposite to each other.

[0032] Correspondingly, referring to Figure 6 and Figure 3 , a limiting hook plate 11 is provided at the bottom of the drawer 1 body. The limiting hook plate 11 is in a Z-shaped or zigzag structure. One end of the limiting hook plate 11 is fixedly connected to the drawer 1 body, such that the other end forms a certain spacing relative to the bottom surface of the drawer 1 body. Further, the other end of the limiting hook plate 11 can extend into the space between the limiting convex edge 33 and the partition 2, enabling the limiting convex edge 33 to limit the upper part of the limiting hook plate 11. Furthermore, the limiting hook plates 11 are provided on both sides of the bottom of the drawer 1 body, respectively cooperating with the strip rails 3 on both sides. By restricting the limiting hook plates 11 by the limiting convex edges 33 on the left and right sides, the lateral offset and misalignment of the drawer 1 body are restricted.

[0033] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A drawer guide rail structure for a switch cabinet, characterized in that, It includes a partition board (2), a drawer (1) body, and a strip rail (3). The partition board (2) is fixedly arranged inside the switch cabinet. The strip rail (3) is fixedly arranged on the partition board (2). The bottom of the drawer (1) body contacts and is slidably connected with the strip rail (3). It also includes a limiting structure for restricting the linear movement of the drawer (1) body along the strip rail (3).

2. The structure of the drawer guide rail of a switch cabinet according to claim 1, wherein The limiting structure includes a chute (31) arranged at the top of the strip rail (3). The chute (31) is arranged along the linear direction of the strip rail (3). The chute (31) is recessed on the surface of the strip rail (3) to form a U-shaped structure. A universal ball for rolling along the chute (31) is arranged at the bottom of the drawer (1) body.

3. A drawer guide rail structure for a switch cabinet according to claim 2, characterized in that, The universal ball includes a hemispherical seat (41) and a ball member (42). The hemispherical seat (41) is fixedly connected with the drawer (1) body. A ball cavity for accommodating the ball member (42) is formed inside the hemispherical seat (41).

4. A drawer guide rail structure of a switch cabinet according to claim 1, characterized in that The limiting structure also includes a limiting hook plate (11). A limiting convex edge (33) is arranged on one side of the strip rail (3) along the linear direction. A certain height space is formed between the limiting convex edge (33) and the partition board (2). One end of the limiting hook plate (11) is fixedly connected with the drawer (1) body, and the other end extends into the height space.

5. A switch cabinet drawer guide rail structure according to any one of claims 1-4, characterized in that, The number of the strip rails (3) is set to two, and they are arranged in parallel and opposite.

6. A drawer guide rail structure of a switch cabinet according to claim 1, characterized in that, Screw holes (32) for passing screws are formed on the strip rail (3). The top of the screw holes (32) adopts a counterbore design.

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