Fixing device for wire inlet end of preassembled transformer substation

Abstract

The utility model relates to the technical field of preassembled transformer substations, and discloses a preassembled transformer substation wire inlet end fixing device which is applied to a cabinet body of a preassembled transformer substation, the lower end part of the cabinet body is fixedly provided with a wire inlet assembly, the wire inlet assembly can facilitate the fixation of a wire in the cabinet body, and the wire inlet assembly comprises a mounting seat, a clamping assembly and a limiting nut, the mounting base is fixed on the cabinet body through the limiting bolt, the clamping assembly is composed of clamping sleeves which are symmetrically arranged, the limiting nut is fixedly connected with the clamping sleeves through threads, and a wire penetrates through the interior of the clamping assembly. According to the invention, after the cable is pulled, through the anti-skid lines arranged on the outer side surface of the clamping sleeve, the contact friction between the wire inlet assembly and the cabinet body can be increased, and the cable is effectively prevented from moving to the outer side; and the mounting seat is clamped with the clamping assembly, so that the clamping assembly can be limited from moving towards the inner side, the tensile effect of the cable is effectively improved, and the use stability of the prefabricated substation is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated transformer substations, in particular to a prefabricated transformer substation inlet terminal fixing device. Background Art

[0002] Prefabricated substation, also called box-type substation, is a device that organically combines transformer step-down and low-voltage power distribution functions. It is a fully enclosed, movable steel structure box that is moisture-proof, rust-proof, dust-proof, rat-proof, fire-proof, theft-proof, heat-insulated, and is particularly suitable for urban network construction and reconstruction. It is a new type of substation that has emerged after civil substations.

[0003] When a substation is in use, cables are needed to connect its internal components with external components. The traditional intelligent prefabricated substation inlet cable stabilization device cannot effectively limit the outward movement of the wires, making it difficult to ensure the stability of the inverted charging station, which poses certain safety risks to the use of prefabricated charging stations. To address this, we propose a prefabricated substation inlet fixing device. Utility Model Content

[0004] The purpose of the utility model is to provide a pre-installed substation incoming line terminal fixing device to solve the problem that the existing cable stabilization device proposed in the above-mentioned background technology cannot effectively limit the outward movement of the wires, so that the stability of the use of the inverted charging station is difficult to ensure, which makes the use of the pre-installed charging station have certain safety hazards.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prefabricated substation incoming line terminal fixing device, applied to the cabinet of the prefabricated substation, the lower end of the cabinet is fixedly installed with an incoming line assembly, the incoming line assembly can facilitate the fixing of the wires inside the cabinet, the incoming line assembly includes a mounting seat, a clamping assembly and a limiting nut, the mounting seat is fixed to the cabinet by limiting bolts, the limiting bolts are distributed on the mounting seat in a square shape, the clamping assembly is composed of symmetrically arranged clamping sleeves, the limiting nut is fixedly connected to the clamping sleeve by threads, and the wires pass through the inside of the clamping assembly.

[0006] Preferably, the limiting nut is arranged on the inner side of the mounting seat, and the mounting seat is provided with holes and grooves for inserting the limiting nut at intervals.

[0007] Preferably, a conical cavity is provided on the inner side surface of the end portion opposite to the mounting seat of the limiting nut.

[0008] Preferably, the centers of the clamping assembly and the limiting nut are colinear, and the limiting nut is sleeved on the clamping assembly.

[0009] Preferably, the incoming line assembly is arranged inside the cabinet, and the incoming line assembly is evenly arranged on the mounting seat.

[0010] Preferably, the outer side surface of the symmetrical clamping sleeve is provided with anti-skid patterns, and adjacent anti-skid patterns are arranged at intervals.

[0011] Preferably, the snap-on assembly is inserted into the hole groove.

[0012] Preferably, a V-shaped protrusion pointing outward is symmetrically provided in the middle of the outer side surface of the clamping sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. This prefabricated substation incoming line terminal fixing device evenly arranges the incoming line components on the cabinet. After the cable is pulled, the anti-slip texture is arranged on the outer side of the clamping sleeve. The anti-slip texture can increase the contact friction between the incoming line component and the cabinet, effectively preventing the cable from moving outward; and the clamping of the mounting seat and the clamping component can limit the inward movement of the clamping component, effectively improving the tensile resistance of the cable, thereby further ensuring the use stability of the prefabricated substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective (a partial cross-section of the cabinet in the figure);

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model (a partial cross-sectional view of the cabinet in the figure);

[0017] Figure 3 This is a schematic diagram of the utility model from a second viewing angle (a partial cross-section of the cabinet in the figure);

[0018] Figure 4 It is a schematic diagram of the clamping assembly mechanism of the utility model.

[0019] In the figure: 1. cabinet; 2. incoming line assembly; 21. mounting base; 22. limiting nut; 23. snap-fit ​​assembly; 231. snap-fit ​​sleeve; 24. anti-slip pattern; 25. limiting bolt; 26. hole groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: See Figure 1-4The utility model provides a technical solution: a prefabricated substation incoming line fixing device, which is mainly aimed at the existing cable stabilization device, which cannot effectively limit the outward movement of the wire, so that the stability of the inverted charging station is difficult to guarantee, and the use of the prefabricated charging station has certain safety hazards. The specific scheme is as follows: a cabinet 1 applied to a prefabricated substation, wherein an incoming line assembly 2 is fixedly installed at the lower end of the cabinet 1, and the incoming line assembly 2 can facilitate the fixing of the wires inside the cabinet 1. The incoming line assembly 2 can be set according to the number of inserted wires to meet the connection and installation needs of different charging stations.

[0022] See also Figure 2 and Figure 4 , wherein the incoming line assembly 2 includes a mounting seat 21, a clamping assembly 23 and a limiting nut 22, the incoming line assembly 2 is arranged inside the cabinet 1, and the incoming line assembly 2 is evenly arranged on the mounting seat 21.

[0023] Furthermore, a conical cavity is provided on the inner side surface of the end opposite to the limiting nut 22 and the mounting seat 21. The provision of the conical cavity facilitates the connection between the limiting nut 22 and the clamping assembly 23. An arc surface that fits the conical cavity is provided at the relative position between the clamping assembly 23 and the limiting nut 22. The limiting nut 22 enables the clamping assembly 23 to fit the cable, thereby playing a role in clamping and fixing the cable.

[0024] Furthermore, the mounting seat 21 is fixed to the cabinet 1 by limiting bolts 25, and the limiting bolts 25 are distributed in a square shape on the mounting seat 21. The fixing stability of the mounting seat 21 and the cabinet 1 can be further improved by the limiting bolts 25 distributed in a square shape.

[0025] Specifically, the clamping assembly 23 is composed of symmetrically arranged clamping sleeves 231, the centers of the clamping assembly 23 and the limiting nut 22 are colinear, and the limiting nut 22 is sleeved on the clamping assembly 23. The limiting nut 22 is fixedly connected to the clamping sleeve 231 through a thread. After the limiting nut 22 is rotated, the limiting nut 22 and the clamping assembly 23 are continuously fitted, so that the adjacent clamping sleeves 231 can move inward at the same time, that is, the distance between the adjacent clamping sleeves 231 is minimized. As the limiting nut 22 is continuously screwed in, the clamping assembly 23 can be clamped on the cable, further improving the fixing stability of the cable.

[0026] In this embodiment, anti-skid patterns 24 are provided on the outer side of the symmetrical snap-in sleeve 231, and adjacent anti-skid patterns 24 are arranged at intervals. The anti-skid patterns 24 can increase the contact friction between the incoming line assembly 2 and the cabinet 1, thereby further improving the snap-in stability of the incoming line assembly 2 and the cabinet 1. The wire passes through the inside of the snap-in assembly 23. The limiting nut 22 is provided on the inner side of the mounting seat 21, and the mounting seat 21 is provided with holes 26 for inserting the limiting nut 22 at intervals. The snap-in assembly 23 is inserted into the hole 26. An outward V-shaped protrusion is provided in the middle of the outer side of the symmetrical snap-in sleeve 231.

[0027] In the prefabricated substation incoming line terminal fixing device, when the incoming line is connected, first, the limiting nut 22 is put on the cable, and then the cable is passed through the hole groove 26 on the mounting seat 21; finally,

[0028] The symmetrically arranged clamping sleeves 231 are clamped on the upper and lower sides of the cable, and the limiting nut 22 is screwed on the clamping sleeves 231. By continuously screwing in the limiting nut 22, the symmetrically arranged clamping sleeves 231 can be connected. At the same time, after rotating the limiting nut 22, the limiting nut 22 and the clamping assembly 23 are continuously fitted together, and the adjacent clamping sleeves 231 can move inward at the same time, that is, the distance between the adjacent clamping sleeves 231 is minimized. As the limiting nut 22 is continuously screwed in, the clamping assembly 23 can be clamped on the cable, further improving the fixing stability of the cable; after the cable is pulled, the anti-skid pattern 24 arranged on the outer side of the clamping sleeve 231 can increase the contact friction between the incoming line assembly 2 and the cabinet 1, thereby effectively preventing the cable from moving outward; and the clamping of the mounting seat 21 and the clamping assembly 23 can limit the inward movement of the clamping assembly 23, effectively improving the tensile strength of the cable.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated substation inlet terminal fixing device, applied to a cabinet (1) of a prefabricated substation, characterized in that: An incoming wire assembly (2) is fixedly mounted on the lower end of the cabinet (1), and the incoming wire assembly (2) can facilitate the fixing of wires inside the cabinet (1). The incoming wire assembly (2) comprises a mounting seat (21), a clamping assembly (23) and a limiting nut (22). The mounting seat (21) is fixed to the cabinet (1) by limiting bolts (25), and the limiting bolts (25) are distributed on the mounting seat (21) in a square shape. The clamping assembly (23) consists of symmetrically arranged clamping sleeves (231). The limiting nut (22) is fixedly connected to the clamping sleeve (231) by a thread, and a wire passes through the inside of the clamping assembly (23).

2. A prefabricated substation incoming line terminal fixing device according to claim 1, characterized in that: The limiting nut (22) is arranged on the inner side of the mounting seat (21), and the mounting seat (21) is provided with holes (26) for inserting the limiting nut (22) at intervals.

3. A prefabricated substation incoming line terminal fixing device according to claim 1, characterized in that: A conical cavity is provided on the inner side surface of the end portion opposite to the limiting nut (22) and the mounting seat (21).

4. A prefabricated substation incoming line terminal fixing device according to claim 1, characterized in that: The centers of the clamping assembly (23) and the limiting nut (22) are colinear, and the limiting nut (22) is sleeved on the clamping assembly (23).

5. A prefabricated substation incoming line terminal fixing device according to claim 1, characterized in that: The incoming line components (2) are arranged inside the cabinet (1), and the incoming line components (2) are evenly arranged on the mounting seat (21).

6. A prefabricated substation incoming line terminal fixing device according to claim 1, characterized in that: Anti-skid patterns (24) are symmetrically arranged on the outer side of the clamping sleeve (231), and adjacent anti-skid patterns (24) are arranged at intervals.

7. A prefabricated substation incoming line terminal fixing device according to claim 2, characterized in that: The clamping assembly (23) is inserted into the hole groove (26).

8. A prefabricated substation incoming line terminal fixing device according to claim 1, characterized in that: A V-shaped protrusion pointing outward is symmetrically provided in the middle of the outer side surface of the clamping sleeve (231).

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