Wall bushing and switch cabinet

Abstract

The utility model discloses a wall bushing and a switch cabinet, the wall bushing comprises an outer bushing, an inner bushing detachably inserted in the outer bushing and a baffle plate arranged at one end of the outer bushing, the inner bushing is formed by detachably splicing a first half bushing and a second half bushing, the first half sleeve comprises a half sleeve wall and a limiting plate which is fixedly arranged on the inner wall of the half sleeve wall and is used for arranging a copper bar in a penetrating manner, an inserting strip is arranged on the joint surface of the top and the bottom of the half sleeve wall, and an inserting groove matched with the inserting strip in an inserting manner is formed in the position, corresponding to the inserting strip, of the second half sleeve. According to the utility model, the inner sleeve formed by the plugging cooperation of the first half sleeve and the second half sleeve is arranged, the inner sleeve is pulled out from the outer sleeve, and the first half sleeve and the second half sleeve are staggered along the axial direction of the inner sleeve, so that the inner sleeve is separated into the first half sleeve and the second half sleeve, and the copper bar can be easily penetrated; the inner sleeve can be detached on the basis of not detaching the copper bar arranged in the inner sleeve in a penetrating mode, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, specifically to a through-wall bushing and switch cabinet. Background Technology

[0002] With the development of the power industry, switchgear, as an indispensable part of the power system, plays a vital role in the power supply network. It is not only used for the distribution and control of electrical energy, but also a crucial device for protecting the safe operation of power equipment. To ensure the safety and reliability of switchgear, the design of its internal connections is particularly important, among which the through-wall bushing is one of the key components connecting internal and external circuits.

[0003] In existing technologies, wall bushings are mainly used to protect copper busbars passing through switchgear panels, preventing mechanical damage and ensuring electrical insulation performance. However, in practical applications, the ease of maintenance of wall bushings is a concern because they require regular inspection or replacement.

[0004] For example, patent CN220368437 discloses a wall bushing and a high-voltage switchgear. This design uses a wall bushing with an inner and outer sleeve structure, requiring only the inner sleeve to be replaced during maintenance, thus reducing maintenance and replacement costs and demonstrating a certain degree of innovation. However, some inconveniences still exist in the actual replacement of the inner sleeve. Specifically, when the inner sleeve needs to be disassembled, both ends of the copper busbar inserted within it must first be removed, and the entire copper busbar must be completely pulled out of the inner sleeve before the inner sleeve can be completely detached, making the operation rather cumbersome.

[0005] Therefore, this application proposes a through-wall bushing and switch cabinet to solve the above-mentioned technical problems. Utility Model Content

[0006] The main purpose of this utility model is to solve the above-mentioned shortcomings and provide a through-wall bushing and switch cabinet, which allows the inner bushing to be removed without disassembling the copper busbar installed in the inner bushing.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A through-wall sleeve includes an outer sleeve, an inner sleeve detachably inserted into the outer sleeve, and a baffle plate disposed at one end of the outer sleeve. The inner sleeve is detachably assembled from a first half-sleeve and a second half-sleeve. The first half-sleeve includes a half-wall and a limiting plate fixedly disposed on the inner wall of the half-wall for inserting a copper busbar. Insert strips are provided at the joint surfaces at the top and bottom of the half-wall. The second half-sleeve has a slot corresponding to the insert strip for insertion and engagement.

[0009] Furthermore, the outer wall of the inner sleeve is symmetrically provided with buckles, and the inner wall of the outer sleeve is provided with a groove that cooperates with the buckles.

[0010] Furthermore, the outer wall of the inner sleeve is symmetrically provided with grooves, and the buckle is fixedly disposed in the groove and protrudes from the outer wall surface of the groove.

[0011] Furthermore, the inner sleeve has symmetrically formed grooves on its inner wall for pulling the inner sleeve out of the outer sleeve.

[0012] Furthermore, the inner wall edge of the end of the outer sleeve where the baffle is not located is chamfered, and the outer wall edge of the end of the inner sleeve that is inserted into the outer sleeve is also chamfered.

[0013] Furthermore, the cross-section of the insert is dovetail-shaped.

[0014] Furthermore, a dovetail insert is provided at the joint surface of the top and bottom of the limiting plate, and a dovetail groove is provided at the corresponding position of the second half sleeve and the dovetail insert to engage with the dovetail insert.

[0015] A switch cabinet, wherein a wall bushing as described in any one of claims 1-6 is provided on the side wall of the cabinet, and one end of the outer bushing with a baffle is inserted into the inner cavity of the cabinet.

[0016] The beneficial effects of this utility model are reflected in:

[0017] 1. This utility model, by setting an inner sleeve formed by the insertion and cooperation of a first half-sleeve and a second half-sleeve, allows the inner sleeve to be pulled out from the outer sleeve during maintenance and replacement of the through-wall sleeve. The first half-sleeve and the second half-sleeve are then offset along the axial direction of the inner sleeve, separating the inner sleeve into the first half-sleeve and the second half-sleeve. This allows the copper busbar to pass through easily, achieving the goal of removing the inner sleeve without disassembling the copper busbar installed in the inner sleeve, thus saving time and effort.

[0018] 2. By inserting the end of the outer sleeve with a baffle into the inner cavity of the cabinet, the replacement of the inner sleeve can be completed outside the cabinet, providing more operating space for the operator. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the through-wall sleeve in this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of one embodiment of the through-wall sleeve in this utility model from another perspective;

[0022] Figure 3 This is a schematic diagram showing the inner and outer sleeves of one embodiment of the through-wall sleeve in this utility model.

[0023] Figure 4 This is a schematic diagram showing the disassembled inner sleeve of one embodiment of the through-wall sleeve in this utility model;

[0024] Figure 5 This is a schematic diagram of the first and second half-sleeves fitting together in an embodiment of the through-wall sleeve of this utility model;

[0025] Figure 6 This is a half-sectional view of the inner sleeve of one embodiment of the through-wall sleeve in this utility model;

[0026] Figure 7 This is a schematic diagram of the overall structure of an embodiment of the switch cabinet in this utility model.

[0027] In the diagram: 1. Outer sleeve; 2. Inner sleeve; 3. Baffle; 4. First half sleeve; 41. Half sleeve wall; 42. Limiting plate; 5. Second half sleeve; 6. Insert strip; 7. Slot; 8. Buckle; 9. Snap groove; 10. Groove; 11. Snap groove; 12. Cabinet body; 13. Dovetail insert; 14. Dovetail groove. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] like Figure 1-6 As shown, a through-wall sleeve includes an outer sleeve 1, an inner sleeve 2 detachably inserted into the outer sleeve 1, and a baffle 3 disposed at one end of the outer sleeve 1. The inner sleeve 2 is detachably assembled from a first half sleeve 4 and a second half sleeve 5. The first half sleeve 4 includes a half-wall 41 and a limiting plate 42 fixedly disposed on the inner wall of the half-wall 41 for inserting copper busbars. Inserts 6 are provided at the joint surfaces of the top and bottom of the half-wall 41. The second half sleeve 5 has a slot 7 corresponding to the insert 6 for insertion and engagement.

[0030] When maintaining or replacing the through-wall bushing, pull the inner bushing 2 out of the outer bushing 1. At this time, the inner bushing 2 is still on the outside of the copper busbar. Then, the first half bushing 4 and the second half bushing 5 are offset along the axial direction of the inner bushing 2. The insert 6 slides out of the slot 7. The inner bushing 2 is divided into the first half bushing 4 and the second half bushing 5, which can easily pass through the copper busbar. This allows the inner bushing 2 to be removed without disassembling the copper busbar that is installed in the inner bushing 2, saving time and effort. When installing a new inner bushing 2, simply reverse the above steps.

[0031] In one embodiment, the outer wall of the inner sleeve 2 is symmetrically provided with buckles 8, and the inner wall of the outer sleeve 1 is provided with a groove 9 that cooperates with the buckles 8.

[0032] With this design, when the inner sleeve 2 is inserted into the outer sleeve 1, the clip 8 engages with the slot 9, securing the two together and preventing the inner sleeve 2 from slipping out of the outer sleeve 1 during use. When it is necessary to remove the inner sleeve 2 from the outer sleeve 1, simply pull the inner sleeve 2 outwards along its axial direction, and the clip 8 will disengage from the slot 9, allowing for separation. This fixing method is not only convenient to install and remove but also stable and reliable, making it suitable for the connection between the outer sleeve 1 and the inner sleeve 2 in this case.

[0033] In one embodiment, grooves 10 are symmetrically provided on the outer wall of the inner sleeve 2, and buckles 8 are fixedly disposed in the grooves 10 and protrude from the outer wall surface of the grooves 10.

[0034] With this design, the length of the buckle 8 protruding from the outer wall of the inner sleeve 2 is relatively small, ensuring that the inner sleeve 2 can be smoothly inserted into the outer sleeve 1, while also ensuring the snap-fit ​​effect between the buckle 8 and the groove 10.

[0035] In one embodiment, the inner sleeve 2 has symmetrically formed grooves 11 on its inner wall for pulling the inner sleeve 2 out of the outer sleeve 1.

[0036] With this design, when removing the inner sleeve 2 from the outer sleeve 1, the operator can hold the buckle groove 11 with their hand and pull the inner sleeve 2 outward, making it easier for the operator to exert force.

[0037] In one embodiment, the inner wall edge of the end of the outer sleeve 1 without the baffle 3 is chamfered, and the outer wall edge of the end of the inner sleeve 2 inserted into the outer sleeve 1 is also chamfered.

[0038] This design makes it easier to insert the inner sleeve 2 into the outer sleeve 1, reducing the requirements for alignment accuracy during the insertion process.

[0039] In one embodiment, the cross-section of the insert 6 is dovetail-shaped.

[0040] This design ensures that the dovetail-shaped insert 6 can be securely inserted between the first half-sleeve 4 and the second half-sleeve 5, making them difficult to separate easily in a direction perpendicular to the axial direction of the inner sleeve 2.

[0041] In one embodiment, a dovetail insert 13 is provided at the joint surface of the top and bottom of the limiting plate 42, and a dovetail groove 14 is provided at the corresponding position of the second half sleeve 5 to engage with the dovetail insert 13.

[0042] With this design, when the first half-sleeve 4 and the second half-sleeve 5 are assembled into a whole by inserting the insert 6 into the slot 7, the dovetail insert 13 and the dovetail slot 14 are also inserted into each other, further improving the stability of the assembly between the two half-sleeves.

[0043] like Figure 7 As shown, a switch cabinet has a wall sleeve as described in any one of claims 1-7 installed on the side wall of the cabinet body 12, and one end of the outer sleeve 1 with a baffle 3 is inserted into the inner cavity of the cabinet body 12.

[0044] After various electrical components are installed, the internal space of the switch cabinet is often relatively cramped, making it difficult to easily meet the space requirements for the operator to pull the inner bushing 2 out of the outer bushing 1. Therefore, the plug-in end of the outer bushing 1 is set outside the cabinet 12 to leave more operating space for the operator.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0046] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0047] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, "multiple" refers to two or more. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A through-wall sleeve, comprising an outer sleeve (1), an inner sleeve (2) detachably inserted into the outer sleeve (1), and a baffle (3) disposed at one end of the outer sleeve (1), characterized in that: The inner sleeve (2) is detachably assembled from a first half sleeve (4) and a second half sleeve (5). The first half sleeve (4) includes a half-wall (41) and a limiting plate (42) fixedly disposed on the inner wall of the half-wall (41) for inserting copper busbars. Inserts (6) are provided at the joint surfaces of the top and bottom of the half-wall (41). The second half sleeve (5) is provided with a slot (7) corresponding to the insert (6) for insertion and engagement with the insert (6).

2. A through-wall sleeve as described in claim 1, characterized in that, The inner sleeve (2) is symmetrically provided with buckles (8) on its outer wall, and the outer sleeve (1) is provided with a groove (9) that cooperates with the buckles (8) on its inner wall.

3. A through-wall sleeve as described in claim 2, characterized in that, The inner sleeve (2) has symmetrical grooves (10) on its outer wall. The buckle (8) is fixedly installed in the groove (10) and protrudes from the outer wall surface of the groove (10).

4. A through-wall sleeve as described in claim 3, characterized in that, The inner sleeve (2) has symmetrically arranged grooves (11) on its inner wall for pulling the inner sleeve (2) out of the outer sleeve (1).

5. A through-wall sleeve as described in claim 1, characterized in that, The inner wall edge of the outer sleeve (1) without the baffle (3) is chamfered, and the outer wall edge of the inner sleeve (2) inserted into the outer sleeve (1) is also chamfered.

6. A through-wall sleeve as described in claim 1, characterized in that, The cross-section of the insert (6) is dovetail-shaped.

7. A through-wall sleeve as described in claim 1, characterized in that, The top and bottom joint surfaces of the limiting plate (42) are provided with dovetail inserts (13), and the second half sleeve (5) is provided with a dovetail groove (14) corresponding to the dovetail insert (13) for insertion and mating.

8. A switch cabinet, wherein a wall bushing as described in any one of claims 1-7 is provided on the side wall of the cabinet body (12), characterized in that: The outer tube (1) with a baffle (3) at one end is inserted into the inner cavity of the cabinet (12).

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