Drawer installation structure in draw-out type low-voltage switch cabinet

Abstract

The utility model discloses a drawer mounting structure in a draw-out type low-voltage switch cabinet, and belongs to the technical field of mounting structures. A drawer installation structure in a draw-out type low-voltage switch cabinet comprises an installation frame, first sliding rail rods are symmetrically arranged on the inner wall of the installation frame, and sliding seats are arranged on the surfaces of the first sliding rail rods in a sliding mode. And a set of stable sliding transmission system is formed. When the drawer needs to be operated, an operator can easily move the drawer only by pulling or pushing the handle on the drawer body no matter the drawer is pulled out or pushed in. The sliding seat slides on the first sliding rail rod, and the moving seat slides on the second sliding rail rod, so that the drawer can be pulled out and pushed in more stably and smoothly in cooperation with the rotation of the movable strip, the operation resistance is reduced, and the operation convenience is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of installation structure technology, and in particular to an installation structure for a drawer inside a pull-out low-voltage switchgear. Background Technology

[0002] In power systems, withdrawable low-voltage switchgear is widely used in various power distribution scenarios for controlling, protecting, and distributing electrical energy. Among them, the drawer, as an important component inside the switchgear that carries electrical components and realizes electrical connections, directly affects the overall performance, ease of operation, and operational stability of the switchgear due to the rationality of its installation structure. Currently, some withdrawable low-voltage switchgear have design flaws in the drawer installation structure. When operating the drawer to pull it out or push it in, due to the lack of an effective sliding guide and transmission mechanism, the operator needs to apply a lot of force to overcome the resistance during the drawer's movement, resulting in a laborious and unsmooth operation. Furthermore, due to the lack of stable guiding components, drawers are prone to wobbling and shifting during movement. This not only affects the accuracy of operation but may also cause the drawer to collide with other components inside the cabinet, resulting in equipment damage, reducing the overall operational stability of the switch cabinet, and increasing maintenance costs. Many existing drawer installation structures lack automatic reset functions. When the operator pulls the drawer out or pushes it in, the drawer cannot automatically return to its initial position and requires manual reset, which causes great inconvenience, especially when the drawer is frequently operated, wasting a lot of time and manpower. In addition, even if some installation structures are equipped with reset springs to achieve automatic reset functions, due to unreasonable structural design, the reset spring and moving parts are prone to interference. During the movement of the drawer, the rotation of the moving parts will be hindered by the reset spring, resulting in poor operation of the transmission system and even malfunctions, affecting the normal use of the drawer and the reliable operation of the switch cabinet.

[0003] Therefore, in order to address this problem, this utility model provides a drawer installation structure for a pull-out type low-voltage switch cabinet. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a drawer installation structure for a pull-out low-voltage switch cabinet.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a drawer mounting structure for a pull-out low-voltage switchgear cabinet, comprising a mounting frame, wherein a first slide rail is symmetrically arranged on the inner wall of the mounting frame, a sliding seat is slidably arranged on the surface of the first slide rail, a movable strip is rotatably connected to the side of the sliding seat via a pivot, one end of the movable strip is rotatably connected to a movable seat via a pivot, a second slide rail is slidably connected to the inner wall of the movable seat, a drawer body is arranged on the side of the second slide rail, and return springs are symmetrically arranged between the drawer body and the mounting frame.

[0006] Preferably, the mounting bracket has symmetrical mounting holes on both sides for installation.

[0007] Preferably, a handle is provided on the side of the drawer body away from the mounting bracket, and the handle is used for pulling.

[0008] Preferably, a side frame is fixedly connected to one side of the mounting bracket, and slide bars are provided on both sides of the drawer body, with the slide bars slidably connected to the side frame.

[0009] Preferably, the return spring is located on the side of the movable bar, and there is no contact between the movable bar and the return spring.

[0010] Compared with the prior art, this utility model provides a drawer installation structure for a pull-out low-voltage switchgear cabinet, which has the following advantages:

[0011] 1. The drawer installation structure inside this pull-out low-voltage switchgear cabinet, through the setting of components such as the first slide rail, sliding seat, movable strip, moving seat, and second slide rail, forms a stable sliding transmission system. When it is necessary to operate the drawer, whether pulling it out or pushing it in, the operator only needs to pull or push the handle on the drawer body to easily move the drawer. The sliding seat slides on the first slide rail, and the movable seat slides on the second slide rail. Combined with the rotation of the movable strip, this makes the process of pulling out and pushing in the drawer smoother and more stable, reducing operating resistance and greatly improving operational convenience. At the same time, the sliding connection between the side frame and the slide rails on both sides of the drawer body further guides and stabilizes the movement of the drawer, preventing the drawer from shaking or shifting during movement, ensuring the stability of the entire installation structure, and extending the service life of the equipment.

[0012] 2. The drawer mounting structure of this pull-out low-voltage switchgear features symmetrically arranged return springs between the drawer body and the mounting bracket. When an external force pushes or pulls the drawer body out or in, the return springs undergo elastic deformation. After the external force disappears, the return springs, relying on their elastic restoring force, automatically return the drawer body to its initial position, eliminating the need for manual reset and greatly improving ease of use. Furthermore, the return springs are located on the side of the moving strip and do not contact it. This structural design avoids interference between the moving strip and the return spring during rotation, ensuring normal rotation of the moving strip and smooth operation of the entire transmission system. This allows the entire mounting structure to achieve automatic reset while ensuring coordinated and stable operation between components, improving the structure's rationality and reliability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal drawer installation structure of a pull-out low-voltage switchgear proposed in this utility model.

[0014] Figure 2 This is a top view of the internal drawer installation structure of a pull-out low-voltage switchgear proposed in this utility model.

[0015] Figure 3 This utility model proposes a drawer installation structure for a pull-out type low-voltage switchgear cabinet. Figure 2 Enlarged view of area A in the middle.

[0016] In the diagram: 1. Mounting bracket; 101. Mounting hole; 2. First slide rail; 3. Slide seat; 4. Movable bar; 5. Moving seat; 6. Second slide rail; 7. Drawer body; 701. Handle; 702. Slide bar; 8. Return spring; 9. Side shelf. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Reference Figures 1-3A drawer mounting structure for a pull-out low-voltage switchgear includes a mounting frame 1. A first slide rail 2 is symmetrically welded to or bolted onto the inner wall of the mounting frame 1. A sliding seat 3 is slidably fitted onto the surface of the first slide rail 2, allowing the sliding seat 3 to slide freely along its length on the first slide rail 2. A movable strip 4 is rotatably connected to the side of the sliding seat 3 via a pivot, allowing the movable strip 4 to rotate relative to the sliding seat 3 around the pivot. A movable seat 5 is also rotatably connected to one end of the movable strip 4 via a pivot. A second slide rail 6 is slidably connected to the inner wall of the movable seat 5, allowing the movable seat 5 to slide along the second slide rail 6. The drawer slides along its length. The side of the second slide rail 6 is fixedly mounted with the drawer body 7 by welding or bolting. A return spring 8 is symmetrically installed between the drawer body 7 and the mounting bracket 1. The two ends of the return spring 8 are fixedly connected to the drawer body 7 and the mounting bracket 1, respectively. When the drawer body 7 is pushed or pulled, the sliding seat 3 slides on the first slide rail 2, the moving seat 5 slides on the second slide rail 6, and the movable bar 4 rotates accordingly. At the same time, the return spring 8 undergoes elastic deformation. When the external force disappears, the drawer body 7 can return to its initial position under the elastic restoring force of the return spring 8.

[0020] The mounting bracket 1 has symmetrical mounting holes 101 on both sides. The mounting holes 101 are common shapes such as circles or oblongs. The mounting bracket 1 is fixed in the corresponding installation position in the low-voltage switch cabinet by passing bolts through the mounting holes 101, so as to realize the installation and use of the drawer mounting structure.

[0021] The drawer body 7 is fixedly provided with a handle 701 on the side away from the mounting bracket 1 by welding or bolting. The handle 701 is U-shaped or other shape that is easy to grip. When it is necessary to pull out or push in the drawer body 7, the operator can hold the handle 701 to apply pulling or pushing force to pull the drawer body 7.

[0022] The mounting bracket 1 has a side frame 9 fixedly connected to one side by welding or bolting. The side frame 9 is a strip structure with a certain length and width, and its cross-sectional shape can be rectangular or the like. The drawer body 7 has slide bars 702 fixedly installed on both sides by welding or bolting. The shape of the slide bars 702 is adapted to the internal shape of the side frame 9. The slide bars 702 are embedded in the side frame 9 and form a sliding connection with the side frame 9. During the process of the drawer body 7 being pulled out or pushed in, the slide bars 702 slide in the side frame 9, which guides and stabilizes the movement of the drawer body 7.

[0023] The return spring 8 is located on the side of the movable strip 4. During installation, the return spring 8 is positioned at a certain distance from the movable strip 4 so that the movable strip 4 and the return spring 8 will not come into contact during rotation, thus avoiding interference between the movable strip 4 and the return spring 8 and ensuring the normal operation of the entire drawer installation structure.

[0024] 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. A drawer mounting structure for a pull-out low-voltage switchgear, comprising a mounting bracket (1), characterized in that, The inner wall of the mounting bracket (1) is symmetrically provided with a first slide rail (2), and a sliding seat (3) is slidably provided on the surface of the first slide rail (2). A movable strip (4) is rotatably connected to the side of the sliding seat (3) through a pivot. A movable seat (5) is rotatably connected to one end of the movable strip (4) through a pivot. A second slide rail (6) is slidably connected to the inner wall of the movable seat (5). A drawer body (7) is provided on the side of the second slide rail (6). A return spring (8) is symmetrically provided between the drawer body (7) and the mounting bracket (1).

2. The drawer installation structure inside a pull-out low-voltage switchgear according to claim 1, characterized in that, The mounting bracket (1) has symmetrical mounting holes (101) on both sides for installation.

3. The drawer installation structure inside a pull-out low-voltage switchgear according to claim 1, characterized in that, The drawer body (7) is provided with a handle (701) on the side away from the mounting bracket (1), and the handle (701) is used for pulling.

4. The drawer installation structure inside a pull-out low-voltage switchgear according to claim 1, characterized in that, A side frame (9) is fixedly connected to one side of the mounting bracket (1), and slide bars (702) are provided on both sides of the drawer body (7). The slide bars (702) are slidably connected to the side frame (9).

5. The drawer installation structure inside a pull-out low-voltage switchgear according to claim 1, characterized in that, The reset spring (8) is located on the side of the movable bar (4), and there is no contact between the movable bar (4) and the reset spring (8).

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