Quick disassembly and assembly structure for power distribution cabinet door

The combination of mounting frame, positioning holes, and dovetail nuts solves the problem of inconvenient disassembly and assembly of the distribution cabinet door, enabling quick and convenient connection and separation of the cabinet door and cabinet body, and improving the convenience of operation and sealing.

CN224264513UActive Publication Date: 2026-05-19YANKUANG LUNAN CHEMICALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANKUANG LUNAN CHEMICALS CO LTD
Filing Date
2025-06-06
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing distribution cabinet doors are inconvenient to install and remove, especially due to the difficulty of disassembly caused by the flathead screws, which affects the continuity of production operations.

Method used

The cabinet adopts a combination structure of mounting frame, first positioning hole, second positioning hole, hex bolt and dovetail nut, combined with stainless steel fully threaded hex bolt and sealing ring, and uses magnetic-assisted positioning to achieve quick assembly and disassembly of cabinet door and cabinet body.

Benefits of technology

It significantly improves the ease of disassembly and assembly of cabinet doors and power distribution cabinets, reduces the number of bolts required, increases the operating contact area, and allows for manual disassembly and assembly without tools, thus improving the convenience of operation and sealing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224264513U_ABST
Patent Text Reader

Abstract

The utility model provides a power distribution cabinet door quick dismounting structure, which relates to the field of power distribution cabinet door dismounting equipment and comprises a power distribution cabinet body, a cabinet door, a mounting frame, a first positioning hole, a second positioning hole, a hexagon bolt and a dovetail nut. According to the device, the fast dismounting process of the cabinet door and the cabinet body of the power distribution cabinet can be realized by matching the reversely mounted hexagon bolts with the mounting frame, the first positioning holes, the second positioning holes and the dovetail nuts, and compared with the prior art, the number of fixing bolts is remarkably reduced without influencing the accuracy of butt joint; meanwhile, the contact area of operation is increased through the dovetail nuts in the fixing process, manual operation can be completed without tools, and the disassembly and assembly convenience between the cabinet door and the power distribution cabinet body is improved.
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Description

Technical Field

[0001] This utility model relates to the field of equipment for disassembling and assembling power distribution cabinet doors, and more specifically, to a quick disassembly and assembly structure for power distribution cabinet doors. Background Technology

[0002] Currently, transitional transfer distribution cabinets are used in tippers for power distribution, protection, and control. However, during operation, some heat-generating dust can cause poor contact in the relay devices inside the cabinet, leading to malfunctions and preventing normal production operations from being met. Therefore, it is necessary to frequently open the distribution cabinet door to troubleshoot the problem.

[0003] The existing tipper power distribution cabinet uses flathead screws to fix the cabinet door to the cabinet body and the cabinet door is a hingeless opening and closing cabinet door. Specifically, the cabinet door is installed at multiple points on the cabinet body by six flathead screws (two at the top, two in the middle, and two at the bottom). However, such multi-point installation will make the subsequent cabinet door disassembly operation inconvenient. Since the contact area of ​​ordinary flathead screws is small, tools are required to complete the work, which makes the cabinet door disassembly difficult.

[0004] In conclusion, the ease of assembly and disassembly of the distribution cabinet door and cabinet body needs to be improved. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a quick disassembly and assembly structure for power distribution cabinet doors.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A quick-release and assembly structure for a power distribution cabinet door includes a power distribution cabinet body and a cabinet door, as well as a mounting frame, a first positioning hole, a second positioning hole, hexagonal bolts, and dovetail nuts.

[0008] The mounting frame is installed inside the power distribution cabinet.

[0009] The first positioning hole is symmetrically opened in the middle of the mounting frame and has an internal thread.

[0010] The second positioning holes are symmetrically opened on the cabinet door and correspond one-to-one with the first positioning holes and are at the same center;

[0011] The head of the hex bolt is inside the mounting frame, and the bolt is threaded to the first positioning hole and extends through the second positioning hole to the outside of the cabinet door.

[0012] The dovetail nut is threadedly connected to the hexagonal bolt and comes into contact with the cabinet door.

[0013] Furthermore, the hexagonal bolts are stainless steel fully threaded hexagonal bolts.

[0014] The above solution uses stainless steel fully threaded hex bolts to ensure that the bolt has sufficient length.

[0015] Furthermore, the cabinet door is provided with a sealing ring that fits tightly against the mounting frame.

[0016] The above solution uses a sealing ring to improve the sealing performance of the cabinet door and the power distribution cabinet body after installation, thereby reducing the probability of external dust entering the power distribution cabinet.

[0017] Furthermore, magnets are embedded in the diagonal corners of the cabinet door, the mounting frame is made of austenitic stainless steel and matches the magnets, and a handle is provided on the outside of the cabinet door.

[0018] Based on the positioning of the first and second positioning holes, the above solution can preliminarily define the position of the cabinet door before operating the dovetail nut by using a magnet. This eliminates the need to hold the cabinet door with one hand and turn the dovetail nut with the other.

[0019] Furthermore, the screw size of the hexagonal bolt is 8*100MM.

[0020] Furthermore, the outer side of the cabinet door is provided with several reinforcing ribs.

[0021] The above solution uses reinforcing ribs to reduce the probability of cabinet doors warping.

[0022] Furthermore, the dovetail nut is made of a corrosion-resistant material.

[0023] Furthermore, the dovetail nut is provided with a PVC anti-slip pad.

[0024] The above solution not only improves the service life of dovetail nuts but also facilitates manual operation, prevents slippage, and provides corrosion-resistant anti-slip pads.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This device enables quick assembly and disassembly of the cabinet door and the distribution cabinet body by using reverse-mounted hexagonal bolts, a mounting frame, a first positioning hole, a second positioning hole, and a dovetail nut. Compared with existing technologies, it significantly reduces the number of fixing bolts without affecting the accuracy of the connection. At the same time, the dovetail nut increases the contact area during the fixing process, allowing for manual operation without tools, thus improving the ease of assembly and disassembly between the cabinet door and the distribution cabinet body. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the installation frame;

[0029] Figure 3 This is a schematic diagram of the second positioning hole;

[0030] Figure 4 This is a schematic diagram showing the fit between the hexagonal bolt shank and the dovetail nut.

[0031] Figure label:

[0032] 1. Distribution cabinet body; 11. Mounting frame; 12. First positioning hole; 2. Cabinet door; 21. Second positioning hole; 22. Sealing ring; 3. Hex bolt; 4. Dovetail nut. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0034] like Figures 1 to 4 As shown, a quick-release structure for a distribution cabinet door 2 includes a distribution cabinet body 1 and a cabinet door 2, as well as a mounting frame 11, a first positioning hole 12, a second positioning hole 21, hexagonal bolts 3, and dovetail nuts 4.

[0035] The mounting frame 11 is installed inside the power distribution cabinet 1;

[0036] The first positioning hole 12 is symmetrically opened in the middle of the mounting frame 11 and the first positioning hole 12 is provided with an internal thread, which is not labeled in the figure.

[0037] The second positioning hole 21 is symmetrically opened on the cabinet door 2 and corresponds one-to-one with the first positioning hole 12 and is at the same center;

[0038] The head of the hex bolt 3 is located inside the mounting frame 11 and the bolt of the hex bolt 3 is threadedly connected to the first positioning hole 12 and extends through the second positioning hole 21 to the outside of the cabinet door 2;

[0039] The dovetail nut 4 is threadedly connected to the hexagonal bolt 3 and comes into contact with the cabinet door 2.

[0040] Specifically, the hex bolt 3 is made of stainless steel with full thread to ensure that its screw has sufficient length and effectively reduce the probability of rust. The screw size of the hex bolt 3 is 8*100MM.

[0041] Further refinements of the embodiments of this utility model, such as... Figure 2As shown, a sealing ring 22 is provided on the cabinet door 2 to fit tightly with the mounting frame 11, so as to improve the sealing performance of the cabinet door 2 and the power distribution cabinet body 1 after installation, thereby reducing the probability of external dust entering the power distribution cabinet.

[0042] In a further refinement of the embodiment of this utility model, the outer side of the cabinet door 2 is provided with several reinforcing ribs of the same length as the door to reduce the probability of the cabinet door 2 warping. The reinforcing ribs are not shown in the figure.

[0043] In a further refinement of the embodiment of this utility model, the dovetail nut 4 is made of corrosion-resistant material (specifically, it is made of corrosion-resistant galvanized material) and a PVC anti-slip pad is provided on the dovetail nut 4; this improves the service life of the dovetail nut 4, facilitates manual operation, prevents slippage, and the anti-slip pad is corrosion-resistant.

[0044] The working process of this utility model is as follows:

[0045] First, install the hex bolt 3 in reverse on the mounting frame 11 through the first positioning hole 12, so that the screw of the hex bolt 3 extends to the outside of the distribution cabinet 1. Then, align the second positioning hole 21 on the cabinet door 2 with the screw of the hex bolt 3 so that the hex bolt 3 passes through the second positioning hole 21 and extends to the outside of the cabinet door 2. Then, make the cabinet door 2 fit with the mounting frame 11 (after fitting, the cabinet door 2 is flush with the front side of the distribution cabinet 1). At this time, the sealing ring 22 can improve the sealing effect of the joint between the two. Then, thread the dovetail nut 4 with the screw of the hex bolt 3. At this time, no tools are needed, and the dovetail nut 4 can be manually tightened to finally make it contact the cabinet door 2. Then the installation of the cabinet door 2 can be completed quickly.

[0046] When a fault occurs inside the distribution cabinet, the two dovetail nuts 4 can be loosened one after another to quickly disassemble and separate the cabinet door 2 from the distribution cabinet body 1. This improves the ease of operation and significantly reduces the number of bolt fixing points. In addition, the large contact area of ​​the dovetail nuts 4 allows the process to be completed manually without tools, further improving the ease of disassembling and assembling the cabinet door 2 from the distribution cabinet body 1.

[0047] This device enables quick assembly and disassembly of the cabinet door 2 and the distribution cabinet body 1 by using a reverse-mounted hexagonal bolt 3 in conjunction with the mounting frame 11, the first positioning hole 12, the second positioning hole 21, and the dovetail nut 4. Compared with existing technologies, this significantly reduces the number of fixing bolts without affecting the accuracy of the connection. At the same time, the dovetail nut 4 increases the contact area during the fixing process, allowing for manual operation without tools. This improves the ease of assembly and disassembly between the cabinet door 2 and the distribution cabinet body 1.

[0048] In some embodiments, magnets are embedded in the diagonal corners of the cabinet door 2. The mounting frame 11 is made of stainless steel (specifically austenitic stainless steel) and cooperates with the magnets. A handle is provided on the outside of the cabinet door 2, which is not shown in the figure. In this embodiment, based on the positioning of the first positioning hole 12 and the second positioning hole 21, the position of the cabinet door 2 can be initially defined before operating the dovetail nut 4 by using the magnets. Thus, it is not necessary to hold the cabinet door 2 with one hand and turn the dovetail nut 4 with the other hand.

[0049] When separating the cabinet door 2, simply make the dovetail nut 4 disengage from the screw of the hexagonal bolt 3, then grasp the handle and apply force outward to achieve quick separation between the cabinet door 2 and the distribution cabinet body 1.

[0050] In other embodiments, the hexagonal bolts 3 are coated with lubricating oil; the purpose of applying lubricating oil to the hexagonal bolts 3 in this embodiment is to prevent jamming and ensure the smooth installation and removal of the cabinet door 2.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-release and disassembly structure for a power distribution cabinet door, comprising a power distribution cabinet body (1) and a cabinet door (2), characterized in that, It also includes a mounting frame (11), a first positioning hole (12), a second positioning hole (21), a hexagonal bolt (3), and a dovetail nut (4). The mounting frame (11) is set inside the power distribution cabinet (1); The first positioning hole (12) is symmetrically opened in the middle of the mounting frame (11) and the first positioning hole (12) is provided with an internal thread; The second positioning hole (21) is symmetrically opened on the cabinet door (2) and corresponds one-to-one with the first positioning hole (12) and is at the same center; The head of the hex bolt (3) is inside the mounting frame (11) and the screw of the hex bolt (3) is threaded to the first positioning hole (12) and extends through the second positioning hole (21) to the outside of the cabinet door (2); The dovetail nut (4) is threadedly connected to the hexagonal bolt (3) and comes into contact with the cabinet door (2).

2. The quick-release and disassembly structure for a power distribution cabinet door according to claim 1, characterized in that, The hexagonal bolt (3) is a stainless steel fully threaded hexagonal bolt.

3. The quick-release and disassembly structure for a power distribution cabinet door according to claim 1, characterized in that, The cabinet door (2) is provided with a sealing ring (22) that fits tightly against the mounting frame (11).

4. The quick-release and disassembly structure for a power distribution cabinet door according to claim 1, characterized in that, Magnets are embedded in the opposite corners of the cabinet door (2), the mounting frame (11) is made of austenitic stainless steel and is matched with the magnets, and a handle is provided on the outside of the cabinet door (2).

5. The quick-release and disassembly structure for a power distribution cabinet door according to claim 2, characterized in that, The screw size of the hexagonal bolt (3) is 8*100MM.

6. The quick-release structure for a distribution cabinet door according to claim 1, characterized in that, The cabinet door (2) has several reinforcing ribs on its outer side.

7. The quick-release and disassembly structure for a power distribution cabinet door according to claim 1, characterized in that, The dovetail nut (4) is made of corrosion-resistant material.

8. The quick-release and disassembly structure for a power distribution cabinet door according to claim 7, characterized in that, The dovetail nut (4) is provided with a PVC anti-slip pad.