Sealing structure for incoming and outgoing lines of power distribution cabinet

Abstract

The utility model provides a kind of incoming and outgoing line sealing structure of switch board, comprising: switch board body, the side of the switch board body is equipped with wiring cavity, wiring board piece, the wiring board piece is installed in wiring cavity cavity, the side of the wiring board piece is arrayed and is equipped with several wiring holes, upper assembly block, the upper assembly block is placed in several wiring hole cavities upper, lower assembly block, the lower assembly block is placed in several wiring hole cavities below, the upper assembly block is distributed with lower assembly block corresponding, and the outer side of corresponding distribution upper assembly block and lower assembly block is all equipped with outer sealing sleeve, upper sealing block, the upper sealing block is clamped into upper assembly block cavity, the lower assembly block cavity is clamped into lower sealing block, upper assembly block and lower assembly block are formed using assembly mode, so that outer sealing sleeve, upper sealing block and lower sealing block can be quickly removed from upper assembly block and lower assembly block and replaced, avoid sealing failure.

Description

Technical Field

[0001] This utility model relates to a sealing structure for the incoming and outgoing lines of a power distribution cabinet, belonging to the technical field of waterproofing for the incoming and outgoing lines of power distribution cabinets. Background Technology

[0002] As the final stage equipment in the power distribution system, the distribution cabinet has a very wide range of applications. In order to facilitate the wiring and power distribution of the distribution cabinet, it is usually equipped with inlet and outlet pipes for cable routing. Due to the setting of inlet and outlet pipes, the distribution cabinet will be connected to the outside, which will reduce its waterproof sealing ability, safety and service life.

[0003] Currently, most electrical distribution cabinets use simple rubber sleeves for their inlet and outlet ports. These rubber sleeves are prone to aging after long-term use, thus losing their sealing effect. At the same time, due to the simple fixing structure of the rubber sleeves, their sealing effect is poor, and dirt, sand, and rainwater can easily move into the interior of the electrical distribution cabinet. Therefore, the rubber sleeves need to be replaced regularly. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sealing structure for the incoming and outgoing lines of a power distribution cabinet, so as to solve the problem mentioned in the background technology that the rubber sleeve is prone to aging after long-term use, thereby losing its sealing effect and needing to be replaced regularly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for the incoming and outgoing lines of a power distribution cabinet, comprising:

[0006] The distribution cabinet body has a wiring cavity on one side;

[0007] A wiring plate is installed inside a wiring cavity, and a plurality of wiring holes are arranged in an array on one side of the wiring plate.

[0008] An upper assembly block is placed above a plurality of wiring hole cavities;

[0009] The lower assembly block is placed below a plurality of wiring hole cavities. The upper assembly block is distributed correspondingly to the lower assembly block, and the outer sides of the corresponding upper assembly block and lower assembly block are fitted with outer sealing sleeves.

[0010] An upper sealing block is inserted into the cavity of the upper assembly block, and a lower sealing block is inserted into the cavity of the lower assembly block.

[0011] Furthermore, both the outer sides of the upper assembly block and the outer sides of the lower assembly block are provided with assembly cavities. The two ends of the assembly cavity are respectively provided with a head retaining ring and a tail retaining ring. The arc surface of the assembly cavity is provided with reinforcing retaining strips in an array.

[0012] Furthermore, the inner sides of the outer sealing sleeve are respectively provided with a first end retaining ring groove and a tail end retaining ring groove, and the first end retaining ring strip is inserted into the first end retaining ring groove, and the tail end retaining ring strip is inserted into the tail end retaining ring groove. The inner side of the outer sealing sleeve is provided with a ring array of reinforcing retaining grooves, and the reinforcing retaining grooves are located between the first end retaining ring groove and the tail end retaining ring groove. The reinforcing retaining grooves are inserted into the reinforcing retaining strips one by one, and the outer sealing sleeve is inserted into the assembly cavity.

[0013] Furthermore, the upper assembly block has four mounting holes at its bottom corners, and the lower assembly block has four mounting pins at its top corners. The upper and lower assembly blocks are assembled in a one-to-one correspondence, and the mounting pins are inserted into the mounting holes in a one-to-one correspondence.

[0014] Furthermore, the inner sides of both the upper and lower assembly blocks are provided with a ring-shaped array of limiting strips, and the outer sides of both the upper and lower sealing blocks are provided with a ring-shaped array of limiting slots. The limiting strips of the upper assembly block are inserted into the limiting slots of the upper sealing block, and the limiting strips of the lower assembly block are inserted into the limiting slots of the lower sealing block. Assembly strips are provided at both ends of the bottom of the upper sealing block, and assembly slots are provided at both ends of the top of the lower sealing block, with the assembly strips inserted into the assembly slots.

[0015] Furthermore, a limiting block is provided at one end of the top of the upper assembly block and one end of the bottom of the lower sealing block. A limiting slot is provided above and below one end of the wiring hole cavity, and the limiting block is inserted into the limiting slot. The wiring hole is shaped like a frustum.

[0016] Furthermore, an assembly frame is arrayed on one side of the wiring plate, and the assembly frame is distributed one-to-one with the wiring holes. The top and bottom of the assembly frame are provided with adjustment screw holes, and adjustment studs are fitted inside the two adjustment screw holes. A clamping arc plate is installed at one end of the two adjustment studs, and a rotating handle is provided at the other end of the two adjustment studs. An inlet is provided at one end of the assembly frame, and a linkage rod is installed on one side of the clamping arc plate. A limiting circular plate is provided at the end of the linkage rod away from the clamping arc plate and contacts the limiting block.

[0017] Furthermore, the top of the power distribution cabinet body is provided with a pressure relief chamber, a pressure relief plate is installed in the pressure relief chamber, pressure relief ports are arranged in an array on the top of the pressure relief plate, pressure relief shells are arranged in an array on the top of the pressure relief plate, and the pressure relief shells are distributed one-to-one with the pressure relief ports. A pressure relief spring is installed at the top of the pressure relief shell cavity, and a sealing plate is installed at the bottom of each pressure relief spring, and the sealing plate is inserted into the pressure relief port one-to-one. Pressure relief holes are arranged in an array on the outer side below the pressure relief shell.

[0018] The beneficial effects of this utility model are:

[0019] 1. The upper and lower assembly blocks are formed by assembly, allowing the outer sealing sleeve, upper sealing block, and lower sealing block to be quickly removed and replaced. This prevents the rubber outer sealing sleeve, upper sealing block, and lower sealing block from aging and losing their sealing performance after long-term use, which would lead to a decrease in the sealing performance of the power distribution cabinet's incoming and outgoing lines. This would allow dirt, sand, and rainwater to enter the power distribution cabinet through the gaps around the incoming and outgoing lines, affecting the safe use of the power distribution cabinet. At the same time, the cooperation between the end retaining ring and other retaining strips and the retaining groove improves the stability of the outer sealing sleeve, upper sealing block, and lower sealing block on the upper and lower assembly blocks, preventing them from shifting or misaligning during use, thus affecting the sealing performance of the sealing structure.

[0020] 2. By utilizing the shape of the frustum of the wiring hole and the cooperation of parts such as the clamping arc plate and the limiting circular plate, the position of the upper and lower assembly blocks can be restricted, preventing the upper and lower assembly blocks from moving due to the influence of the wrapped wires during use. At the same time, the wrapped wires are protected, preventing the wires from moving frequently between the upper and lower sealing blocks and reducing the service life of the upper and lower sealing blocks.

[0021] 3. The sealed structure design improves the airtightness of the distribution cabinet. However, the internal air pressure may rise during use. Therefore, users need to install a high-pressure relief structure on the distribution cabinet. The cooperation of parts such as the pressure relief port and pressure relief shell can relieve the high pressure inside the distribution cabinet, allowing the distribution cabinet to release the internal pressurized gas in time, avoiding the danger of deformation or even explosion caused by untimely venting. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the sealing structure for the incoming and outgoing lines of a power distribution cabinet according to the present invention.

[0024] Figure 2 This is a schematic diagram of the distribution cabinet body and wiring cavity in the sealing structure for the incoming and outgoing lines of a distribution cabinet according to this utility model;

[0025] Figure 3 This is a schematic diagram of the wiring plate and wiring holes in the sealing structure for the incoming and outgoing lines of a power distribution cabinet according to this utility model;

[0026] Figure 4 This is a schematic diagram of the upper assembly block, lower assembly block, and outer sealing sleeve in the sealing structure for the incoming and outgoing lines of a power distribution cabinet according to this utility model.

[0027] Figure 5This is a schematic diagram of the upper sealing block and the lower sealing block in the sealing structure for the incoming and outgoing lines of a power distribution cabinet according to this utility model;

[0028] Figure 6 This is a schematic diagram of the assembly frame, adjusting screw port and adjusting stud in the sealing structure of the incoming and outgoing lines of a power distribution cabinet according to the present invention;

[0029] Figure 7 This is a schematic diagram of the pressure relief spring, sealing plate, and pressure relief hole in the sealing structure of the incoming and outgoing lines of a power distribution cabinet according to this utility model;

[0030] Figure 8 This is a schematic diagram of the wiring hole, upper assembly block, and lower assembly block in the sealing structure for the inlet and outlet lines of a power distribution cabinet according to this utility model.

[0031] In the diagram: 1. Distribution cabinet body; 2. Wiring cavity; 3. Wiring plate; 4. Wiring hole; 5. Upper assembly block; 6. Lower assembly block; 7. Outer sealing sleeve; 8. Upper sealing block; 9. Lower sealing block; 10. Assembly cavity; 11. First end retaining ring strip; 12. Tail end retaining ring strip; 13. Reinforcing retaining strip; 14. First end retaining ring groove; 15. Tail end retaining ring groove; 16. Reinforcing retaining groove; 17. Assembly hole; 18. Assembly retaining post; 19. Restricting retaining strip; 20. 21. Restricting slot; 22. Assembly strip; 23. Assembly slot; 24. Restricting block; 25. Restricting slot; 26. Assembly frame; 27. Adjusting screw; 28. Adjusting stud; 29. ​​Clamping arc plate; 30. Rotating handle; 31. Inlet; 32. Pressure relief chamber; 33. Pressure relief plate; 34. Pressure relief port; 35. Pressure relief spring; 36. Sealing plate; 37. Pressure relief hole; 38. Linkage rod; 39. Restricting circular plate. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0033] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8This utility model provides a technical solution: a sealing structure for the inlet and outlet lines of a power distribution cabinet, comprising: a power distribution cabinet body 1, a wiring cavity 2 on one side of the power distribution cabinet body 1, a wiring plate 3, the wiring plate 3 being installed in the wiring cavity 2, a plurality of wiring holes 4 arrayed on one side of the wiring plate 3, an upper assembly block 5, the upper assembly block 5 being placed above the plurality of wiring holes 4, a lower assembly block 6, the lower assembly block 6 being placed below the plurality of wiring holes 4, the upper assembly block 5 and the lower assembly block 6 being correspondingly distributed, and an outer sealing sleeve 7 being fitted on the outer side of the correspondingly distributed upper assembly block 5 and lower assembly block 6, an upper sealing block 8, the upper sealing block 8 being inserted into the cavity of the upper assembly block 5, and a lower sealing block 9 being inserted into the cavity of the lower assembly block 6, an assembly recess 10 being opened on the outer side of both the upper assembly block 5 and the lower assembly block 6, a head end retaining ring strip 11 and a tail end retaining ring strip 12 being respectively provided at both ends of the assembly recess 10, and a reinforcing retaining strip 13 arrayed on the arc surface of the assembly recess 10;

[0034] See Figure 4 and Figure 5 The inner sides of the outer sealing sleeve 7 are respectively provided with a first end retaining ring groove 14 and a tail end retaining ring groove 15. The first end retaining ring strip 11 is inserted into the first end retaining ring groove 14, and the tail end retaining ring strip 12 is inserted into the tail end retaining ring groove 15. The inner side of the outer sealing sleeve 7 is provided with a ring array of reinforcing retaining grooves 16, which are located between the first end retaining ring groove 14 and the tail end retaining ring groove 15. The reinforcing retaining grooves 16 are inserted into the reinforcing retaining strips 13 one by one, and the outer sealing sleeve 7 is inserted into the assembly cavity 10. The four corners of the bottom of the upper assembly block 5 are provided with assembly holes 17, and the four corners of the top of the lower assembly block 6 are provided with assembly retaining posts 18. The upper assembly block 5 and the lower assembly block 6 are connected. The blocks 6 are assembled one-to-one, and the assembly pins 18 are inserted into the assembly holes 17 one-to-one. The inner side of the upper assembly block 5 and the inner side of the lower assembly block 6 are provided with a ring array of limiting strips 19. The outer side of the upper sealing block 8 and the lower sealing block 9 are provided with a ring array of limiting slots 20. The limiting strips 19 of the upper assembly block 5 are inserted into the limiting slots 20 of the upper sealing block 8, and the limiting strips 19 of the lower assembly block 6 are inserted into the limiting slots 20 of the lower sealing block 9. The bottom ends of the upper sealing block 8 are provided with assembly strips 21, and the top ends of the lower sealing block 9 are provided with assembly slots 22. The assembly strips 21 are inserted into the assembly slots 22.

[0035] See Figures 3-6One end of the top of the upper assembly block 5 and one end of the bottom of the lower sealing block 9 are provided with a limiting block 23. The upper and lower ends of one end of the wiring hole 4 are provided with limiting slots 24, and the limiting block 23 is inserted into the limiting slot 24. The wiring hole 4 is truncated cone. One side of the wiring plate 3 is equipped with an assembly frame 25 in an array, and the assembly frame 25 is distributed one-to-one with the wiring hole 4. The top and bottom of the assembly frame 25 are provided with adjusting screw holes 26. Adjusting studs 27 are fitted in the cavities of the two adjusting screw holes 26. One end of the two adjusting studs 27 is equipped with a clamping arc plate 28. The other end of the two adjusting studs 27 is provided with a rotating handle 29. One end of the assembly frame 25 is provided with an inlet 30. One side of the clamping arc plate 28 is equipped with a linkage rod 38. The end of the linkage rod 38 away from the clamping arc plate 28 is provided with a limiting circular plate 39, which is in contact with the limiting block 23.

[0036] See Figure 1 and Figure 7 The top of the power distribution cabinet body 1 is provided with a pressure relief chamber 31, a pressure relief plate 32 is installed in the pressure relief chamber 31, a pressure relief port 33 is arranged in an array on the top of the pressure relief plate 32, a pressure relief shell 34 is arranged in an array on the top of the pressure relief plate 32, and the pressure relief shell 34 and the pressure relief port 33 are distributed one-to-one. A pressure relief spring 35 is installed on the top of the cavity of the pressure relief shell 34, and a sealing plate 36 is installed on the bottom of each pressure relief spring 35, and the sealing plate 36 is inserted into the pressure relief port 33 one-to-one. A pressure relief hole 37 is arranged in an array on the outer side below the pressure relief shell 34.

[0037] Detailed implementation method: The user first passes the end of the wire that needs to be connected to the distribution cabinet through the inlet 30 and the wiring hole 4 into the distribution cabinet body 1. The upper sealing block 8 and the lower sealing block 9 are matched with each other to wrap the wire near the wiring hole 4. Then the upper assembly block 5 and the lower assembly block 6 are matched with each other and the upper sealing block 8 and the lower sealing block 9 are wrapped inside. After the upper assembly block 5 and the lower assembly block 6 are assembled, the outer sealing sleeve 7 is put into the assembly cavity 10 after the upper assembly block 5 and the lower assembly block 6 are assembled. After the outer sealing sleeve 7 is put into place, the upper assembly block 5 and the lower assembly block 6 are placed into the wiring hole 4. Then, the user rotates the handle 29 so that the adjusting stud 27 controls the two clamping arc plates 28 to move closer to each other to clamp the wire around the upper assembly block 5 and the lower assembly block 6. The limiting round plate of the linkage rod 38 moves closer to the limiting block 23 to fix the position of the upper assembly block 5 and the lower assembly block 6.

[0038] During the assembly of parts such as the upper sealing block 8 and the lower sealing block 9, the assembly stability is improved by using the assembly clip 21 and the assembly slot 22 when the upper sealing block 8 and the lower sealing block 9 are mated. When the upper assembly block 5 and the lower assembly block 6 are assembled, the assembly hole 17 and the assembly pin 18 are used to improve the assembly stability of the upper assembly block 5 and the lower assembly block 6. At the same time, the limiting clip 19 is used to be inserted into the limiting slot 20 to strengthen the stability of the upper sealing block 8 and the lower sealing block 9 wrapped between the upper sealing block 8 and the lower sealing block 9. When the outer sealing sleeve 7 is wrapped, the first end retaining ring 11, the last end retaining ring 12 and the reinforcing clip 13 are used to be inserted into the first end retaining ring groove 14, the last end retaining ring groove 15 and the reinforcing slot 16 to improve the stability of the outer sealing sleeve 7 in the assembly cavity 10.

[0039] When the internal pressure of the distribution cabinet increases, the high-pressure gas pushes the sealing plate 36 at the bottom of the pressure relief spring 35 away from the pressure relief port 33, so that the pressure relief hole 37 and the pressure relief port 33 are connected, and the high-pressure gas is discharged from the pressure relief port 33 and the pressure relief hole 37. When the gas pressure of the distribution cabinet stabilizes, the pressure relief spring 35, along with the sealing plate 36, is pressed down and locked into the pressure relief port 33.

[0040] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sealing structure for the incoming and outgoing lines of a power distribution cabinet, characterized in that, include: The main body of the power distribution cabinet (1) has a wiring cavity (2) on one side; Wiring plate (3), the wiring plate (3) is installed in the wiring cavity (2), and a plurality of wiring holes (4) are arrayed on one side of the wiring plate (3); The upper assembly block (5) is placed above the cavity of a plurality of wiring holes (4); The lower assembly block (6) is placed below the cavity of several wiring holes (4). The upper assembly block (5) is distributed correspondingly to the lower assembly block (6), and the upper assembly block (5) and the lower assembly block (6) are fitted with an outer sealing sleeve (7) on the outside. Upper sealing block (8) is inserted into the cavity of upper assembly block (5), and lower sealing block (9) is inserted into the cavity of lower assembly block (6).

2. The sealing structure for the incoming and outgoing lines of a power distribution cabinet according to claim 1, characterized in that, Assembly recesses (10) are provided on the outer side of the upper assembly block (5) and the outer side of the lower assembly block (6). The two ends of the assembly recesses (10) are respectively provided with a head retaining ring (11) and a tail retaining ring (12). The assembly recesses (10) are provided with a reinforcing retaining strip (13) in an arc-shaped array.

3. The sealing structure for the incoming and outgoing lines of a power distribution cabinet according to claim 1, characterized in that, The outer sealing sleeve (7) has a head retaining ring groove (14) and a tail retaining ring groove (15) at its two ends on the inner side. The head retaining ring strip (11) is inserted into the head retaining ring groove (14), and the tail retaining ring strip (12) is inserted into the tail retaining ring groove (15). The outer sealing sleeve (7) has a ring array of reinforcing grooves (16) on its inner side. The reinforcing grooves (16) are located between the head retaining ring groove (14) and the tail retaining ring groove (15). The reinforcing grooves (16) are inserted into the reinforcing strips (13) one by one, and the outer sealing sleeve (7) is inserted into the assembly cavity (10).

4. The sealing structure for the incoming and outgoing lines of a power distribution cabinet according to claim 1, characterized in that, The upper assembly block (5) has four mounting holes (17) at the bottom corners, and the lower assembly block (6) has four mounting pins (18) at the top corners. The upper assembly block (5) and the lower assembly block (6) are assembled one-to-one, and the mounting pins (18) are inserted into the mounting holes (17) one-to-one.

5. The sealing structure for the incoming and outgoing lines of a power distribution cabinet according to claim 4, characterized in that, The upper assembly block (5) and the lower assembly block (6) are provided with a ring array of limiting strips (19) on their inner sides. The upper sealing block (8) and the lower sealing block (9) are provided with a ring array of limiting slots (20) on their outer sides. The limiting strips (19) of the upper assembly block (5) are inserted into the limiting slots (20) of the upper sealing block (8), and the limiting strips (19) of the lower assembly block (6) are inserted into the limiting slots (20) of the lower sealing block (9). The bottom ends of the upper sealing block (8) are provided with assembly strips (21), and the top ends of the lower sealing block (9) are provided with assembly slots (22). The assembly strips (21) are inserted into the assembly slots (22).

6. The sealing structure for the incoming and outgoing lines of a power distribution cabinet according to claim 5, characterized in that, The upper assembly block (5) is provided with a limiting block (23) at one end of the top and the lower sealing block (9) at one end of the bottom. The wiring hole (4) is provided with a limiting slot (24) at the top and bottom of one end of the cavity, and the limiting block (23) is inserted into the limiting slot (24). The wiring hole (4) is truncated cone.

7. The sealing structure for the incoming and outgoing lines of a power distribution cabinet according to claim 1, characterized in that, The wiring plate (3) is equipped with an array of assembly frames (25) on one side, and the assembly frames (25) are distributed one-to-one with the wiring holes (4). The top and bottom of the assembly frame (25) are provided with adjustment screw holes (26). Adjustment studs (27) are fitted inside the cavity of the two adjustment screw holes (26). A clamping arc plate (28) is installed at one end of the two adjustment studs (27). A rotating handle (29) is provided at the other end of the two adjustment studs (27). An inlet (30) is opened at one end of the assembly frame (25). A linkage rod (38) is installed on one side of the clamping arc plate (28). A limiting circular plate (39) is provided at the end of the linkage rod (38) away from the clamping arc plate (28) and it contacts the limiting block (23).

8. The sealing structure for the incoming and outgoing lines of a power distribution cabinet according to claim 1, characterized in that, The power distribution cabinet body (1) has a pressure relief chamber (31) on the top. A pressure relief plate (32) is installed in the pressure relief chamber (31). A pressure relief port (33) is arranged in an array on the top of the pressure relief plate (32). A pressure relief shell (34) is arranged in an array on the top of the pressure relief plate (32). The pressure relief shell (34) and the pressure relief port (33) are distributed in a one-to-one correspondence. A pressure relief spring (35) is installed on the top of the cavity of the pressure relief shell (34). A sealing plate (36) is installed on the bottom of each pressure relief spring (35). The sealing plate (36) is inserted into the pressure relief port (33) in a one-to-one correspondence. A pressure relief hole (37) is arranged in an array on the outer side below the pressure relief shell (34).

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