Plugging structure for wire inlet of electrical panel cabinet

Abstract

The utility model provides an electrical panel cabinet wire inlet plugging structure, relates to the electrical panel cabinet technology field, and comprises a cable hole module and a fixed cylinder fixedly communicated with one side of the cable hole module, the fixed cylinder is provided with a plugging mechanism and a spacing mechanism, and the plugging mechanism comprises a clamping groove arranged on one side of the fixed cylinder far away from the cable hole module. According to the plugging structure for the wire inlet of the electrical panel cabinet, a first mounting cylinder and a second mounting cylinder are inserted into the inner wall of a fixed cylinder and a clamping groove, and meanwhile, the second mounting cylinder is inserted to extrude an annular air bag, so that air in the annular air bag enters an air cavity of an annular rubber tire body through an air guide pipe and a vent hole, and the annular rubber tire body expands; and the annular rubber tire body extrudes the first wire hole to reduce the aperture of the first wire hole until the annular rubber tire body is in sealing contact with the outer surface of the wire harness, so that foreign matters such as dust, sand grains and metal chips are prevented from entering the electrical panel cabinet through a gap of the wire inlet.

Description

Technical Field

[0001] The utility model relates to a plugging structure, in particular to a plugging structure for the cable inlet of an electrical panel cabinet, belonging to the technical field of electrical panel cabinets. Background Technique

[0002] An electrical panel cabinet, also called an electrical cabinet, is a general term for a motor control center. Electrical panel cabinets are applicable to occasions where the load is relatively scattered and the number of circuits is small, while motor control centers are used for occasions where the load is concentrated and the number of circuits is large. They distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby loads, and this level of equipment should provide protection, monitoring and control for the loads.

[0003] Common electrical panel cabinets usually have cable inlets opened on their surfaces, and then various wire harnesses enter the interior of the electrical panel cabinets through the cable inlets for connection. However, the gap between the wire harnesses and the cable inlets cannot be completely sealed, and there will still be gaps, which will cause foreign matters such as dust, sand grains, and metal chips to easily enter the electrical panel cabinets, and then accumulate on electrical components and circuit boards, increasing the risk of short circuits.

[0004] Therefore, a plugging structure for the cable inlet of an electrical panel cabinet is proposed here. Content of the Utility Model

[0005] The utility model proposes a plugging structure for the cable inlet of an electrical panel cabinet to solve the problem that it is difficult to plug the cable inlet of an electrical panel cabinet in the prior art.

[0006] The utility model is realized through the following technical solutions: a plugging structure for the cable inlet of an electrical panel cabinet, including a cable hole module and a fixed cylinder fixedly connected to one side of the cable hole module, and a plugging mechanism and a limiting mechanism are arranged on the fixed cylinder.

[0007] The plugging mechanism includes a clamping groove opened on the side of the fixed cylinder far from the cable hole module, a ring-shaped airbag is fixed on the inner wall of the clamping groove, a gas guide pipe is arranged inside the fixed cylinder, and one end of the gas guide pipe is fixedly connected to the ring-shaped airbag. An annular rubber tire body is fixed on the inner wall of the fixed cylinder, an air cavity is opened inside the annular rubber tire body, a ventilation hole is opened on the side of the annular rubber tire body close to the gas guide pipe, and the ventilation hole is communicated with the air cavity. The end of the gas guide pipe far from the ring-shaped airbag is fixedly connected to the ventilation hole.

[0008] Furthermore, a first installation cylinder is inserted into the inner wall of the fixed cylinder, a second installation cylinder is fixed on the side of the first installation cylinder far from the annular rubber tire body, and the second installation cylinder is inserted into the clamping groove, and an outer cover is fixed on the side of the second installation cylinder far from the first installation cylinder.

[0009] Further, the limiting mechanism includes a fixing groove formed in the fixing cylinder. A fixing block is fixed to the inner wall of the fixing groove. A moving rod is slidably connected to the inner wall of the hole of the fixing block. An inserting block is fixed to the bottom end of the moving rod. A telescopic spring is sleeved on the outer surface of the moving rod, and the telescopic spring is located between the inserting block and the fixing block.

[0010] Further, one side of the inserting block close to the first mounting cylinder is beveled, and a pulling block is fixed to the top end of the moving rod.

[0011] Further, a limiting groove is formed in the outer surface of the first mounting cylinder, and the inserting block is inserted into the limiting groove.

[0012] Further, a first wire hole is formed in the middle of the annular rubber tire body. Second wire holes are formed in the middles of the first mounting cylinder, the second mounting cylinder and the outer cover, and the second wire holes are the same size as the first wire hole.

[0013] The utility model provides a sealing structure for the wire inlet of an electrical switch cabinet, and the beneficial effects thereof are as follows:

[0014] 1. For the sealing structure for the wire inlet of the electrical switch cabinet, the first mounting cylinder and the second mounting cylinder are inserted into the inner wall of the fixing cylinder and the clamping groove. At the same time, the insertion of the second mounting cylinder will squeeze the annular airbag, so that the gas in the annular airbag enters the air cavity of the annular rubber tire body through the air guide pipe and the ventilation hole, causing the annular rubber tire body to expand, squeezing the first wire hole to make the aperture of the first wire hole smaller until the annular rubber tire body is in sealing contact with the outer surface of the wire harness, thereby preventing foreign matters such as dust, sand grains, and metal chips from entering the electrical switch cabinet through the gap of the wire inlet.

[0015] 2. For the sealing structure for the wire inlet of the electrical switch cabinet, when the first mounting cylinder is inserted into the inside of the fixing cylinder, one side of the first mounting cylinder close to the inserting block will squeeze the inserting block to move, and the movement of the inserting block will squeeze the telescopic spring to generate elastic force. When the limiting groove on the first mounting cylinder moves to the lower side of the inserting block, the inserting block will be inserted into the limiting groove under the elastic force of the telescopic spring, thereby being able to fix and limit the first mounting cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 is a cross-sectional view of the fixing cylinder, the first mounting cylinder, the second mounting cylinder and the outer cover of the utility model;

[0018] Figure 3 is a cross-sectional view of the annular rubber tire body of the utility model;

[0019] Figure 4Schematic cross-sectional view of the fixing cylinder and the first mounting cylinder in the present utility model;

[0020] Figure 5 Of the present utility model Figure 4 Enlarged schematic view of the structure at A.

[0021] Explanation of reference numerals

[0022] 1. Cable hole module;

[0023] 2. Sealing mechanism; 201. Clamping groove; 202. Annular airbag; 203. Air duct; 204. Annular rubber tire body; 205. Air cavity; 206. Ventilation hole;

[0024] 3. Limiting mechanism; 301. Fixing groove; 302. Fixing block; 303. Moving rod; 304. Insert block; 305. Telescopic spring; 306. Pulling block;

[0025] 4. Fixing cylinder; 5. First mounting cylinder; 6. Second mounting cylinder; 7. Outer cover; 8. Limiting groove; 9. First wire hole; 10. Second wire hole. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the 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.

[0027] Please refer to Figures 1 to 5 , the embodiment of the present utility model provides a sealing structure for the inlet of an electrical switchgear cabinet, including a cable hole module 1 and a fixing cylinder 4 fixedly connected to one side of the cable hole module 1, and a sealing mechanism 2 and a limiting mechanism 3 are provided on the fixing cylinder 4.

[0028] Please pay particular attention to Figure 2 and Figure 3 , the sealing mechanism 2 includes a clamping groove 201 opened on the side of the fixing cylinder 4 away from the cable hole module 1, an annular airbag 202 is fixed on the inner wall of the clamping groove 201, an air duct 203 is arranged inside the fixing cylinder 4, and one end of the air duct 203 is fixedly connected to the annular airbag 202, an annular rubber tire body 204 is fixed on the inner wall of the fixing cylinder 4, an air cavity 205 is opened inside the annular rubber tire body 204, a ventilation hole 206 is opened on the side of the annular rubber tire body 204 close to the air duct 203, and the ventilation hole 206 is communicated with the air cavity 205, and the end of the air duct 203 away from the annular airbag 202 is fixedly connected to the ventilation hole 206.

[0029] A first wire hole 9 is formed in the middle of the annular rubber carcass 204, and second wire holes 10 are formed in the middles of the first mounting cylinder 5, the second mounting cylinder 6, and the outer cover 7, and the second wire holes 10 are the same size as the first wire hole 9.

[0030] Insert the first mounting cylinder 5 and the second mounting cylinder 6 into the inner wall of the fixed cylinder 4 and the clamping groove 201. At the same time, the insertion of the second mounting cylinder 6 will squeeze the annular airbag 202, so that the gas in the annular airbag 202 enters the air cavity 205 of the annular rubber carcass 204 through the air guide pipe 203 and the ventilation hole 206, enabling the annular rubber carcass 204 to expand, squeezing the first wire hole 9 to reduce the aperture of the first wire hole 9 until the annular rubber carcass 204 is in sealing contact with the outer surface of the wire harness, thereby preventing foreign matters such as dust, sand particles, and metal chips from entering the electrical switchgear through the gap of the inlet.

[0031] Please refer particularly to Figure 2 , the inner wall of the fixed cylinder 4 is inserted with a first mounting cylinder 5. A second mounting cylinder 6 is fixed to the side of the first mounting cylinder 5 away from the annular rubber carcass 204, and the second mounting cylinder 6 is inserted into the clamping groove 201. An outer cover 7 is fixed to the side of the second mounting cylinder 6 away from the first mounting cylinder 5.

[0032] Please refer particularly to Figure 4 and Figure 5 , the limiting mechanism 3 includes a fixing groove 301 formed in the fixed cylinder 4. A fixing block 302 is fixed to the inner wall of the fixing groove 301. A moving rod 303 is slidably connected to the inner wall of the hole of the fixing block 302. An inserting block 304 is fixed to the bottom end of the moving rod 303. A telescopic spring 305 is sleeved on the outer surface of the moving rod 303, and the telescopic spring 305 is located between the inserting block 304 and the fixing block 302. The air guide pipe 203 and the limiting mechanism 3 are not on the same horizontal line and do not contact each other.

[0033] The side of the inserting block 304 close to the first mounting cylinder 5 is beveled. A pulling block 306 is fixed to the top end of the moving rod 303.

[0034] A limiting groove 8 is formed on the outer surface of the first mounting cylinder 5, and the inserting block 304 is inserted into the limiting groove 8.

[0035] When the first mounting cylinder 5 is inserted into the inside of the fixed cylinder 4, the side of the first mounting cylinder 5 close to the inserting block 304 will squeeze the inserting block 304 to move, and the movement of the inserting block 304 will squeeze the telescopic spring 305 to generate elastic force. When the limiting groove 8 on the first mounting cylinder 5 moves to the lower side of the inserting block 304, the inserting block 304 will be inserted into the limiting groove 8 under the elastic force of the telescopic spring 305, thereby being able to fix and limit the first mounting cylinder 5 and preventing the clamping groove 201 from being restored due to the movement of the second mounting cylinder 6.

[0036] When the utility model is in use: Fix the cable hole module 1 on the electrical panel cabinet, then pass one end of the wire harness through the second wire hole 10, the outer cover 7, the second mounting cylinder 6 and the first mounting cylinder 5 in sequence, and then pass one end of the wire harness through the first wire hole 9 through the annular rubber tire body 204 until one end of the wire harness reaches the inside of the electrical panel cabinet and is connected thereto. After that, insert the first mounting cylinder 5 and the second mounting cylinder 6 into the inner wall of the fixed cylinder 4 and the clamping groove 201. At the same time, the insertion of the second mounting cylinder 6 will squeeze the annular airbag 202, so that the gas in the annular airbag 202 enters the air cavity 205 of the annular rubber tire body 204 through the air guide pipe 203 and the ventilation hole 206, which can make the annular rubber tire body 204 expand, thereby squeezing the first wire hole 9 to make the aperture of the first wire hole 9 smaller until the annular rubber tire body 204 is in sealed contact with the outer surface of the wire harness, avoiding foreign matters such as dust, sand grains and metal chips from entering the electrical panel cabinet through the gap of the inlet. At the same time, when the first mounting cylinder 5 is inserted into the inside of the fixed cylinder 4, one side of the first mounting cylinder 5 close to the insertion block 304 will squeeze the insertion block 304 to move, and the movement of the insertion block 304 will squeeze the telescopic spring 305 to generate elastic force. When the limiting groove 8 on the first mounting cylinder 5 moves below the insertion block 304, the insertion block 304 will be inserted into the limiting groove 8 under the elastic force of the telescopic spring 305, so as to fix and limit the first mounting cylinder 5 and avoid the situation that the clamping groove 201 is restored due to the movement of the second mounting cylinder 6. When disassembly is required, pull the pull block 306 to release the limit on the first mounting cylinder 5.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. An electrical panel incoming line port sealing structure, comprising a cable hole module (1) and a fixed cylinder (4) fixedly connected to one side of the cable hole module (1), characterized in that: A plugging mechanism (2) and a limiting mechanism (3) are provided on the fixed cylinder (4). The plugging mechanism (2) includes a clamping groove (201) opened on the side of the fixed cylinder (4) away from the cable hole module (1). An annular airbag (202) is fixed on the inner wall of the clamping groove (201). A gas guide pipe (203) is arranged inside the fixed cylinder (4), and one end of the gas guide pipe (203) is fixedly communicated with the annular airbag (202). An annular rubber carcass (204) is fixed on the inner wall of the fixed cylinder (4). An air cavity (205) is opened inside the annular rubber carcass (204). An air vent hole (206) is opened on the side of the annular rubber carcass (204) close to the gas guide pipe (203), and the air vent hole (206) is communicated with the air cavity (205). The end of the gas guide pipe (203) away from the annular airbag (202) is fixedly communicated with the air vent hole (206).

2. The electrical panel cabinet inlet blocking structure according to claim 1, characterized in that: A first mounting cylinder (5) is inserted into the inner wall of the fixed cylinder (4). A second mounting cylinder (6) is fixed on the side of the first mounting cylinder (5) away from the annular rubber carcass (204), and the second mounting cylinder (6) is inserted into the clamping groove (201). An outer cover (7) is fixed on the side of the second mounting cylinder (6) away from the first mounting cylinder (5).

3. The electrical panel cabinet inlet sealing structure according to claim 1, wherein: The limiting mechanism (3) includes a fixing groove (301) opened on the fixed cylinder (4). A fixing block (302) is fixed on the inner wall of the fixing groove (301). A moving rod (303) is slidably connected to the inner wall of the hole of the fixing block (302). A plug (304) is fixed at the bottom end of the moving rod (303). A telescopic spring (305) is sleeved on the outer surface of the moving rod (303), and the telescopic spring (305) is located between the plug (304) and the fixing block (302).

4. The electrical panel cabinet inlet sealing structure according to claim 3, wherein: One side of the plug (304) close to the first mounting cylinder (5) is an inclined surface. A pulling block (306) is fixed at the top end of the moving rod (303).

5. A plugging structure for the incoming line port of an electrical panel cabinet according to claim 4, characterized in that: A limiting groove (8) is opened on the outer surface of the first mounting cylinder (5), and the plug (304) is inserted into the limiting groove (8).

6. The electrical panel cabinet inlet sealing structure according to claim 2, characterized in that: A first wire hole (9) is opened in the middle of the annular rubber carcass (204). Second wire holes (10) are opened in the middle of the first mounting cylinder (5), the second mounting cylinder (6) and the outer cover (7), and the second wire holes (10) are the same size as the first wire hole (9).

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