A kind of quick connection structure for switch cabinet cable

Abstract

The application provides a kind of for switch cabinet cable quick connection structure, belong to cable butt joint technical field, include butt joint part one, butt joint part two and leakage prevention unit;Butt joint part one includes butt joint one and one side cable one assembled in butt joint one;Butt joint part two includes butt joint two and one side cable two assembled in butt joint two, circle-shaped cooperation port reserved in butt joint two is used to and butt joint one inserts;Leakage prevention unit includes a plurality of leakage prevention ring one and a plurality of leakage prevention ring two hoop connected in cooperation port and sequentially spaced along the cooperation port transversely, the outer ring wall thickness of leakage prevention ring two is greater than the inner ring wall thickness, the inner ring of leakage prevention ring two is greater than the inner ring of leakage prevention ring one, the outer ring of leakage prevention ring two is less than the outer ring of leakage prevention ring one.The application solves the problem that the existing switch cabinet cable quick connection structure butt joint is not provided with any protective framework, and then external moisture, particulate matter and the like easily enter the butt joint, resulting in unstable cable butt joint, affecting the normal connection of cable.

Description

Technical Field

[0001] This invention belongs to the field of cable splicing technology, specifically relating to a quick-connect structure for switchgear cables. Background Technology

[0002] Switchgear is a core basic electrical equipment in power transmission and distribution systems, industrial power supply, and building power distribution. It is mainly used for the distribution, control, protection, and monitoring of electrical energy. The cable connection structure is a key component of the switchgear for realizing power input, output, and circuit connection. Its connection efficiency, stability, insulation safety, and ease of maintenance directly determine the assembly efficiency, operational reliability, and subsequent maintenance costs of the switchgear, and are crucial to the safe and stable operation of the entire power distribution system. With the intelligent, modular, and integrated development of the power industry, and the increasing demand for standardized construction and rapid assembly on construction sites, the shortcomings of traditional switchgear cable connection structures have become increasingly apparent, making them unsuitable for the production, assembly, and maintenance needs of modern power distribution equipment.

[0003] Currently, most switchgear cables on the market are connected using a snap-fit ​​method, which is quick and convenient. However, no protective structure is set at the connection point, allowing external moisture and particulate matter to easily enter the connection point, resulting in unstable cable connection and affecting the normal operation of the cable. Summary of the Invention

[0004] This invention provides a quick-connect structure for switchgear cables, which aims to solve the problem that existing quick-connect structures for switchgear cables do not have any protective structure at the connection point, allowing external moisture, particulate matter, etc. to easily enter the connection point, resulting in unstable cable connection and affecting the normal operation of the cable.

[0005] This invention provides a quick-connect structure for switchgear cables, comprising a first connecting part, a second connecting part, and a leak-proof unit; The docking section includes a connector and a cable with one side assembled in the connector. The second docking part includes a second connector and a second cable assembled in the second connector. The second connector has a ring-shaped mating port reserved for mating with the first connector. The axial direction of the mating port is the same as the mating direction of the first docking part and the second docking part. The leak-proof unit includes several leak-proof ring 1 and several leak-proof ring 2 that are clamped in the joint and arranged sequentially and laterally along the joint. The outer ring wall thickness of leak-proof ring 1 is smaller than the inner ring wall thickness, the outer ring wall thickness of leak-proof ring 2 is larger than the inner ring wall thickness, the inner ring of leak-proof ring 2 is larger than the inner ring of leak-proof ring 1, and the outer ring of leak-proof ring 2 is smaller than the outer ring of leak-proof ring 1. The edge of the first connector is a stepped surface, which is embedded between the outer ring wall of the cooperation port and the leak-proof unit. The wall surface of the stepped surface of one side of the connector changes shape by pressing the leak-proof unit laterally along the cooperation port, so that the inner ring of the leak-proof ring one and the inner ring surface of the cooperation port are tightly attached, and the outer ring of the leak-proof ring two and the inner ring surface of one side of the connector are tightly attached. Furthermore, several leak-proof rings one and several leak-proof rings two seal the other side wall of the stepped surface of one side of the connector and the lower wall surface of the cooperation port on both sides of the lateral direction of the cooperation port. After the mating is completed, mating connector one and mating connector two are connected via mating units installed on each other.

[0006] Furthermore, the outer ring wall of the leak-proof ring two is an arched surface. The outer ring of the leak-proof ring one has protruding ring one and protruding ring two extending outward along two sides perpendicular to the radial direction. Both protruding ring one and protruding ring two are made of the same material as the leak-proof ring one. In the initial case, the arched surface of the outer ring of the leak-proof ring two is surrounded by the protruding ring one and protruding ring two of the adjacent pair of leak-proof ring one. When the leak-proof unit is compressed by the connector one and the shape changes, the protruding ring one and protruding ring two open to allow the outer ring of the leak-proof ring two to fit tightly against the connector one.

[0007] Furthermore, the inner ring wall of the leak-proof ring one is an arched surface, and the inner ring of the leak-proof ring two extends outward along the side that is farther from the connector one from its radial direction. In the initial case, the protruding ring three contacts the arched surface of the inner ring of the leak-proof ring one. When the leak-proof unit is compressed by the connector one and changes, the protruding ring three opens and separates from the leak-proof ring one, allowing the inner ring of the leak-proof ring one and the inner ring surface of the mating port to be tightly attached.

[0008] Furthermore, the leak-proof unit also includes a pair of leak-proof rings three, each of which is located on both sides of the arrangement of several leak-proof rings one and several leak-proof rings two. One side of the leak-proof ring three is a sloping surface that contacts the leak-proof ring one or the leak-proof ring two, and the other side of the leak-proof ring three is a horizontal wall used to fit tightly against the connector two or one side wall of the connector.

[0009] Furthermore, both the first and second leak-proof rings are equipped with through ports that connect to both sides of their vertical radial direction. In the initial state, the through ports on the first and second leak-proof rings are connected to form a passage for the heat-conducting material to be introduced. When the leak-proof unit is compressed by the first connector and its shape changes, the through ports on the first and second leak-proof rings are avoided.

[0010] Furthermore, the docking part one also includes a clamping block one, which is clamped to the edge of the cable one and clamped and electrically connected to the cable one, and after being inserted into the connector one, it is reversely clamped to the stepped surface provided in the connector one to prevent the cable one and the connector one from separating.

[0011] Furthermore, the outer tube is fixedly connected to the second connector, which is located in the area limited by the cooperation port. The second docking part also includes a second clamping block, which is clamped to the side of the second cable and is clamped and electrically connected to the second cable. After being inserted into the second connector, it is reversely clamped to the stepped surface provided in the second connector to prevent the second cable from separating from the second connector. One side of the second clamping block extends into the outer tube and is inserted and electrically connected to the first clamping block in the first docking part.

[0012] Furthermore, a closed box is installed on the side of the connector one that is farther away from the connector two. The closed box is clamped to the side of the connector one. The cable one passes through the closed box one and is embedded in the connector one. A closed sleeve one is installed between the cable one and the closed box.

[0013] Furthermore, a second enclosure box is installed on the side of the second connector that is farther away from the first connector. The second enclosure box is clamped to the side of the second connector. The second cable passes through the second enclosure box and is then embedded in the second connector. A second enclosure sleeve is installed between the cable and the second enclosure box.

[0014] The beneficial effects of this invention are as follows: The present invention employs two leak-proof rings, one and two, spaced apart, with the inner wall of the first leak-proof ring being thicker and the outer wall of the second leak-proof ring being thicker. This results in the adjacent wall surfaces of the first and second leak-proof rings forming a slope. When subjected to the pressure of the mating joints, the wall thickness of both the first and second leak-proof rings increases in the vertical axial direction. Furthermore, the first and second leak-proof rings press against each other along the slope of their contact surfaces. The thicker inner wall of the first leak-proof ring... The outer ring is compressed even more, and the outer ring with a narrower wall is compressed even narrower. The outer ring of the second leak-proof ring, with its thicker wall, is compressed even more, and the inner ring with a narrower wall is compressed even narrower. This not only makes it effortless to use, but also allows for close contact between the inner ring of the first leak-proof ring and the inner surface of the mating joint in the second connector, and between the outer ring of the second leak-proof ring and the first connector, expanding the contact area of ​​the leak-proof zone and further enhancing the leak-proof function. A protruding ring is installed on the outer ring of the first leak-proof ring. Before the mating parts 1 and 2 are engaged, protruding ring 1 and protruding ring 2 surround the outer arch surface of the leak-proof ring 2 to prevent debris from adhering to the outer arch surface of the leak-proof ring 2, which would cause the leak-proof function to fail. When the leak-proof unit is compressed, protruding ring 1 and protruding ring 2 will move away from the corresponding leak-proof ring 2 due to the narrowing of the outer ring of the leak-proof ring 1. This does not affect the tightness between the leak-proof ring 2 and the mating part 1. After being opened, protruding ring 1 and protruding ring 2 can fit tightly against the side wall of the mating part 1, forming a double-layer leak-proof system. The leak-proof ring 1 and leak-proof ring 2 have reserved through holes, which form a passage for connection in the initial situation. When the leak-proof unit is compressed, the through holes avoid each other, and some heat-conducting fluid moves between the side walls of the leak-proof ring 1 and leak-proof ring 2, forming a triple-layer leak-proof system. This also achieves heat removal and cooling, ensuring the normal operation of the mating joint, achieving leak-proof at the mating joint, ensuring the stability of the cable connection, and ensuring the normal connection between the cables.

[0015] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a side view of the structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure along the MM direction according to an embodiment of the present invention; Figure 4 This is an embodiment of the present invention. Figure 3 A magnified structural diagram at point E; Figure 5 This is a schematic diagram of the shape and structure of the leak-proof unit after it is compressed according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the two cross-sectional structures of the butt joint according to an embodiment of the present invention; Figure 7 This is a schematic cross-sectional view of the connector according to an embodiment of the present invention; Figure 8 This is a schematic cross-sectional view of the anti-leakage ring according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the two-section structure of the leak-proof ring according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the clamping block structure according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the second clamping block structure according to an embodiment of the present invention; Figure 12 This is a schematic cross-sectional view of the docking part 2 and the leak-proof unit according to an embodiment of the present invention; Figure 13 This is a schematic cross-sectional view of the docking section according to an embodiment of the present invention; Attached reference numerals: 1. Connector 1; 2. Cable 1; 3. Clamping block 1; 4. Enclosure box 1; 5. Enclosure sleeve 1; 6. Connector 2; 7. Cable 2; 8. Clamping block 2; 9. Outer tube; 10. Enclosure box 2; 11. Enclosure sleeve 2; 12. Leak-proof unit; 13. Leak-proof ring 1; 14. Protruding ring 1; 15. Protruding ring 2; 16. Leak-proof ring 2; 17. Protruding ring 3; 18. Leak-proof ring 3. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Reference Figures 1-13 This invention provides a quick-connection structure for switchgear cables, comprising a first connecting part, a second connecting part, and a leak-proof unit 12.

[0019] The docking section includes a connector 1 and a cable 2 that is mounted on one side of the connector 1.

[0020] The second docking part includes a second connector 6 and a second cable 7 assembled in the second connector 6 on one side; the second connector 6 has a ring-shaped mating port reserved for mating with the first connector 1, and the axial direction of the mating port is the same as the mating direction of the first docking part and the second docking part. The leak-proof unit 12 includes several leak-proof rings 13 and 16 arranged sequentially and laterally along the mating opening, with the outer ring wall thickness of the leak-proof ring 13 being less than that of the inner ring wall, and the outer ring wall thickness of the leak-proof ring 16 being greater than that of the inner ring wall. The adjacent walls of the leak-proof rings 13 and 16 are sloped surfaces with opposite skew directions that can contact each other. The inner ring of the leak-proof ring 16 is larger than the inner ring of the leak-proof ring 13, and the outer ring of the leak-proof ring 16 is smaller than that of the leak-proof ring 13; that is, the inner ring of the leak-proof ring 13 extends to the inner ring of the leak-proof ring 16, and the outer ring of the leak-proof ring 16 extends to the outer ring of the leak-proof ring 13.

[0021] The edge of the connector 1 is a stepped surface, which is embedded between the outer ring wall of the cooperation port and the leak-proof unit 12. The wall surface of the stepped surface of the connector 1 changes shape by pressing the leak-proof unit 12 laterally along the cooperation port, so that the inner ring of the leak-proof ring 13 and the inner ring surface of the cooperation port are in close contact, and the outer ring of the leak-proof ring 16 and the inner ring surface of the edge of the connector 1 are in close contact. Furthermore, several leak-proof rings 13 and several leak-proof rings 16 seal the other side wall of the stepped surface of the connector 1 and the lower wall surface of the cooperation port on both sides of the lateral direction of the cooperation port. The stepped surface of the first joint 1 includes an inner surface and a pair of opposing side walls. The inner surface is directly opposite the insertion position of the first and second joints. Each of the pair of side walls is connected to both sides of the inner surface. When the first and second joints are close to being inserted, the inner surface of the first joint 1 is outside the leak-proof unit 12. One side wall presses against one side of the leak-proof unit 12, and the other side wall is in close contact with the other side of the leak-proof unit 12 when the first and second joints are inserted into place.

[0022] After the mating is completed, mating connector 1 and mating connector 2 are connected via mating units installed on each other. The mating unit includes a mating ring installed on mating connector 1 and a mating block installed on mating connector 2. During the mating of mating connector 1 and mating connector 2, the mating ring moves along the side of the mating block that is farther away from mating connector 2, and the pressing shape of the mating block changes. After mating connector 1 and mating connector 2 are in place, the mating ring passes through the mating block and returns to mating with the mating block, preventing mating connector 1 and mating connector 2 from disintegrating.

[0023] By using leak-proof rings 13 and 16 installed at intervals, and by making the inner wall of leak-proof ring 13 thicker and the outer wall of leak-proof ring 16 thicker, the wall surfaces of leak-proof rings 13 and 16 adjacent to each other become sloped. When subjected to the pressure during the engagement of connector 1 and connector 2, the wall thickness of leak-proof rings 13 and 16 in the vertical axis increases, and the leak-proof rings 13 and 16 press against each other along the slope of their contact side. The thicker inner ring of leak-proof ring 13 is compressed even more, and the thinner outer ring is compressed even narrower. Similarly, the thicker outer ring of leak-proof ring 16 is compressed even more, and the thinner inner ring is compressed even narrower. This not only makes it effortless to use, but also allows the inner surface of the mating port in connector 26 to be tightly fitted with the thicker inner ring of leak-proof ring 13, and the outer ring of leak-proof ring 26 to be tightly fitted with connector 11, thus expanding the fitting range of the leak-proof area and further enhancing the leak-proof function.

[0024] The outer ring wall of leak-proof ring 16 is arched. Leak-proof ring 13 has protruding rings 14 and 15 extending outwards from its outer ring perpendicular to the radial direction. Both protruding rings 14 and 15 are made of the same material as leak-proof ring 13. Initially, the arched outer ring of leak-proof ring 16 is surrounded by the protruding rings 14 and 15 of a pair of adjacent leak-proof rings 13. When the leak-proof unit 12 is compressed by connector 1, causing a change in its shape, protruding rings 14 and 15 open, allowing the outer ring of leak-proof ring 16 to fit tightly against connector 11. Initially, protruding ring 14 surrounds half of the arched outer ring of an adjacent leak-proof ring 16, and protruding ring 15 surrounds half of the arched outer ring of another adjacent leak-proof ring 16. Before the mating parts 1 and 2 are engaged, protruding rings 14 and 15 surround the leak-proof ring 16 to seal the outer arch surface, preventing debris from adhering to the outer arch surface of the leak-proof ring 16 and causing the leak-proof function to fail. When the leak-proof unit 12 is compressed, protruding rings 14 and 15 will move away from the corresponding leak-proof ring 16 due to the narrowing of the outer ring of the leak-proof ring 13, without affecting the tight fit between the leak-proof ring 16 and the mating joint 1. After being opened, protruding rings 14 and 15 can fit tightly against the side wall of the mating joint 1, forming a double-layer leak-proof structure.

[0025] The inner ring wall of leak-proof ring 13 is arched. The inner ring of leak-proof ring 16 extends outwards along the side furthest from the mating joint 1, perpendicular to its radial direction, with a protruding ring 17. Initially, the protruding ring 17 contacts the arched surface of the inner ring of leak-proof ring 13, and the arched surface surrounding the inner ring of leak-proof ring 13 is less than half. When the leak-proof unit 12 is compressed by the mating joint 1, causing a change, the protruding ring 17 opens and separates from leak-proof ring 13, allowing the inner ring of leak-proof ring 13 to fit tightly against the inner ring surface of the mating opening. Installing the protruding ring 17 only on one side of leak-proof ring 16 not only reduces costs but also facilitates the identification of leak-proof ring 13 and leak-proof ring 16. The protruding ring 17 only needs to form a double-layer leak-proof structure on the side of leak-proof ring 13 near the mating part 1; the leak-proof unit 12 and the mating joint 26 are mainly sealed by the inner ring of leak-proof ring 13. It can also allow the inner ring of the leak-proof ring 16 to extend outward along both sides perpendicular to its radial direction by a protruding ring 3 17, so that in the initial case, the inner ring arch of the leak-proof ring 13 is surrounded by a pair of protruding rings 3 17 of the adjacent pair of leak-proof rings 2 16.

[0026] The leak-proof unit 12 also includes a pair of leak-proof rings 18. Each of the leak-proof rings 18 is located on both sides of the arrangement of a plurality of leak-proof rings 13 and a plurality of leak-proof rings 16. One side of the leak-proof ring 18 is a sloping surface that contacts either the leak-proof ring 13 or the leak-proof ring 16, and the other side of the leak-proof ring 18 is a horizontal wall for tightly adhering to the side wall of the connector 26 or the connector 11. The leak-proof rings 18 can be obtained from the radial cross-section of either the leak-proof ring 13 or the leak-proof ring 16. When the leak-proof ring 13 is on the outermost side, the leak-proof ring 18 adjacent to it is half the size of the leak-proof ring 16. The outer ring of this leak-proof ring 18 is arched and is surrounded and contacted by the protruding ring 14 or protruding ring 15 of the adjacent leak-proof ring 13. When the outermost leak-proof ring is 16, the adjacent leak-proof ring 18 is half the size of the first leak-proof ring 13. The inner ring of the third leak-proof ring 18 is arched and can be surrounded and contacted by the protruding ring 17 of the adjacent leak-proof ring 16. The leak-proof ring 18 ensures its leak-proof function by tightly adhering to the side wall of the second connector 6 through its horizontal wall and the first connector 1.

[0027] The leak-proof unit 12 can also have a single leak-proof ring 13, a single leak-proof ring 16, and a single leak-proof ring 18 as an integral structure, or be made separately and then fused together. Its leak-proof function is stronger than that of simply stacking and pressing together a single piece. However, the protruding ring 14, protruding ring 15, and protruding ring 17 are more difficult to make and require additional cutting work. Therefore, the leak-proof unit 12 with an integral structure can selectively install protruding ring 14, protruding ring 15, and protruding ring 17.

[0028] Both leak-proof ring 13 and leak-proof ring 2 16 have through-holes connecting their vertical radial sides. Initially, the through-holes on leak-proof ring 13 and leak-proof ring 2 16 connect to form a passage for the introduction of a heat-conducting material. When the leak-proof unit 12 is compressed by connector 1, causing a change in its shape, the through-holes on leak-proof ring 13 and leak-proof ring 2 16 are avoided. A slot is reserved in leak-proof ring 3 18 on the side near connector 2, connecting to the through-hole on the adjacent leak-proof ring 13 or leak-proof ring 2 16. A through-groove is reserved in the radial direction of leak-proof ring 3 18 on the side near connector 1. Initially, the passage and through-groove connect to the slot, and the heat-conducting material is introduced into the passage through the through-groove on one of the leak-proof rings 3 18. The heat-conducting material is a gel, which not only provides leak prevention but also conducts heat to prevent heat buildup inside the leak-proof unit 12, ensuring normal operation of the connector.

[0029] The docking part also includes a clamping block 3, which is clamped to the side of the cable 2 and is electrically connected to the cable 2. After being inserted into the connector 1, it is reversely clamped to the stepped surface provided in the connector 1 to prevent the cable 2 and the connector 1 from separating.

[0030] The outer tube 9 is fixedly connected to the second connector 6, and the outer tube 9 is located in the area limited by the joint opening. The second docking part also includes a clamping block 2 8, which is clamped to the edge of the second cable 7 and is clamped and electrically connected to the second cable 7. After being inserted into the second connector 6, it is reversely clamped to the stepped surface provided in the second connector 6 to prevent the second cable 7 from separating from the second connector 2 6. One side of the clamping block 2 8 extends into the outer tube 9 and is inserted and electrically connected to the clamping block 3 in the first docking part. The outer tube 9 is made of mica material. In this system, both clamping blocks 1 (3) and 2 (8) are made of copper. During use, the outer sheaths of cables 1 (2) and 2 (7) are first removed. Clamping blocks 1 (3) and 2 (8) are then attached to the exposed copper wires at the edges of cables 1 (2) and 2 (7), respectively, and clamped using a machine to ensure a secure connection between clamping block 1 (3) and cable 1 (2), and between clamping block 2 (8) and cable 2 (7). Each clamping block 1 (3) and 2 (8) has a pair of outward-facing V-shaped spring strips. Both connectors 1 (1) and 2 (6) have stepped surfaces for clamping the spring strips. When clamping block 1 (3) moves into connector 1 (1), the holes in connector 1 compress the pair of spring strips, causing them to expand and press against the stepped surfaces, preventing clamping block 1 (3) from separating from connector 1 (1), and consequently preventing cable 1 (2) from separating from connector 1 (1). The cooperation between clamping block 2 (8) and connector 2 (6) is the same.

[0031] A sealing box 4 is installed on the side of connector 1 furthest from connector 2 6. The sealing box 4 is clamped to the edge of connector 1. Cable 2 passes through the sealing box 4 and is embedded in connector 1, with a sealing sleeve 5 installed between cable 2 and the sealing box 4. The sealing box 4 is snapped onto connector 1 to allow cable 2 to pass through, and a clamping block 3 is installed on the edge of cable 2. After the sealing box 4 is installed on connector 1, it can prevent rainwater or moisture from flowing into connector 1 from the edge.

[0032] A sealing box 2 10 is installed on the side of connector 2 6 furthest from connector 1 1. Sealing box 2 10 is clamped to the edge of connector 2 6. Cable 2 7 passes through sealing box 2 10 and is then inserted into connector 2 6, with a sealing sleeve 2 11 installed between cable 2 7 and sealing box 2 10. Sealing box 2 10 is snapped onto connector 2 6 to allow cable 2 7 to pass through, and a clamping block 2 8 is installed on the edge of cable 2 7. After sealing box 2 10 is installed on connector 2 6, it prevents rainwater or moisture from flowing into connector 2 6 from its edge. Both sealing sleeve 1 5 and sealing sleeve 2 11 are made of PET material.

[0033] Pushing platforms are installed on the outside of connector 1 and connector 2 6.

[0034] Before assembling connector 1 and connector 2, first assemble cable 12 into connector 1 and cable 27 into connector 26. Cut off the outer sheath of cable 12 at its edge, and sequentially clamp the sealing sleeve 15 and the clamping block 13. The sealing sleeve 15 can block the connection between the outer sheath of cable 12 and the copper wire. After clamping one side of the clamping block 13 to the edge of the sealing sleeve 15, apply pressure to the clamping block 13, so that the clamping block 13 not only tightly clamps the sealing sleeve 15, but also tightly clamps the copper wire area of ​​cable 12 and makes an electrical connection with cable 12. The clamping block 13 extends out of cable 12. Alternatively, the sealing sleeve 15 is only clamped to the outside of the outer sheath of cable 12, and one side of the clamping block 13 only clamps the connection between the outer sheath of cable 12 and the copper wire. After the clamping and connection are completed, cable 2 and clamping block 3 are inserted through the enclosure box 4 and into connector 1, and the enclosure sleeve 5 blocks the space between enclosure box 4 and cable 2. After clamping block 3 moves into connector 1, the spring strip on clamping block 3 is in close contact with the stepped surface in connector 1, preventing clamping block 3 from separating from connector 1, and thus preventing cable 2 from separating from connector 1. The assembly of cable 7, clamping block 8, and enclosure sleeve 11 is the same as above, except that the edge of clamping block 8 is inserted into the outer tube 9 in connector 6.

[0035] Next, the leak-proof rings 18, 13, and 16 of the leak-proof unit 12 are sequentially clamped into the mating opening of the connector 6. The leak-proof rings 13 and 16 are clamped alternately, with each pair of leak-proof rings 18 positioned on either side of the leak-proof rings 13 and 26. Initially, the through-holes on the leak-proof rings 13 and 26 form a passage, and the passage is connected to the through-slots on the pair of leak-proof rings 18, allowing heat-conducting material to enter the passage through the through-slots. Then, bring the first docking part and the second docking part close together, and clamping block 3 and clamping block 8 in the outer tube 9 are engaged. The outer surface of the first docking part is engaged between the outer surfaces of the leak-proof unit 12 and the second docking part 6. A side wall of the first docking part presses against the leak-proof unit 12, so that the leak-proof ring 13 and the second leak-proof ring 16 press against each other along the slope of the contact side. The thicker inner ring of the leak-proof ring 13 is compressed more, and the thinner outer ring is compressed narrower. The thicker outer ring of the leak-proof ring 16 is compressed more, and the thinner inner ring is compressed narrower. The thicker inner ring of the leak-proof ring 13 is in close contact with the inner surface of the cooperating port, and the thicker outer ring of the leak-proof ring 16 is in close contact with the side wall of the first docking part, thus expanding the contact range of the leak-proof part and enhancing the leak-proof function. During the change in shape of leak-proof ring 13 and leak-proof ring 2 16, protruding ring 14, protruding ring 2 15, and protruding ring 3 17 all open and their respective inner ring sidewalls and the inner surface of the mating joint 1 are tightly attached, performing double-layer leak prevention and further enhancing the leak prevention function. In addition, the through-holes on leak-proof ring 13 and leak-proof ring 2 16 shift, and some heat-conducting material flows between the sidewalls of leak-proof ring 13 and leak-proof ring 2 16, forming triple-layer leak prevention and simultaneously achieving heat transfer and cooling. When mating part 1 and mating part 2 are fitted into place, the fitting units on mating joint 1 and mating joint 2 6 fit together, preventing mating part 1 and mating part 2 from separating, and realizing the assembly of mating part 1 and mating part 2.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A quick-connect structure for cables in switchgear, characterized in that, Includes docking part one, docking part two, and leak-proof unit; The docking section includes a connector and a cable with one side assembled in the connector. The second docking part includes a second connector and a second cable assembled in the second connector. The second connector has a ring-shaped mating port reserved for mating with the first connector. The axial direction of the mating port is the same as the mating direction of the first docking part and the second docking part. The leak-proof unit includes several leak-proof ring 1 and several leak-proof ring 2 that are clamped in the joint and arranged sequentially and laterally along the joint. The outer ring wall thickness of leak-proof ring 1 is smaller than the inner ring wall thickness, the outer ring wall thickness of leak-proof ring 2 is larger than the inner ring wall thickness, the inner ring of leak-proof ring 2 is larger than the inner ring of leak-proof ring 1, and the outer ring of leak-proof ring 2 is smaller than the outer ring of leak-proof ring 1. The edge of the first connector is a stepped surface, which is embedded between the outer ring wall of the cooperation port and the leak-proof unit. The wall surface of the stepped surface of one side of the connector changes shape by pressing the leak-proof unit laterally along the cooperation port, so that the inner ring of the leak-proof ring one and the inner ring surface of the cooperation port are tightly attached, and the outer ring of the leak-proof ring two and the inner ring surface of one side of the connector are tightly attached. Furthermore, several leak-proof rings one and several leak-proof rings two seal the other side wall of the stepped surface of one side of the connector and the lower wall surface of the cooperation port on both sides of the lateral direction of the cooperation port. After the mating is completed, mating connector one and mating connector two are connected to each other via mating units installed on each other; The outer ring wall of the leak-proof ring 2 is an arched surface. The outer ring of the leak-proof ring 1 extends outward along two sides perpendicular to the radial direction, with protruding ring 1 and protruding ring 2. Protruding ring 1 and protruding ring 2 are made of the same material as the leak-proof ring 1. In the initial case, the arched surface of the outer ring of the leak-proof ring 2 is surrounded by the protruding ring 1 and protruding ring 2 of the adjacent pair of leak-proof ring 1. When the leak-proof unit is compressed by the connector 1 and the shape changes, protruding ring 1 and protruding ring 2 open to allow the outer ring of the leak-proof ring 2 to be tightly attached to the connector 1. The inner ring wall of the leak-proof ring one is an arched surface. The inner ring of the leak-proof ring two extends outward along the side that is farther from the connector one, perpendicular to its radial direction, with a protruding ring three. In the initial case, the protruding ring three is in contact with the arched surface of the inner ring of the leak-proof ring one. When the leak-proof unit is compressed by the connector one and changes, the protruding ring three opens and separates from the leak-proof ring one, allowing the inner ring of the leak-proof ring one and the inner ring surface of the cooperation port to be tightly attached. Both the leak-proof ring 1 and the leak-proof ring 2 are equipped with through ports that connect to both sides of their vertical radial direction. In the initial state, the through ports on the leak-proof ring 1 and the leak-proof ring 2 are connected to form a passage for the heat-conducting material to be introduced. When the leak-proof unit is compressed by the connector 1 and its shape changes, the through ports on the leak-proof ring 1 and the leak-proof ring 2 are avoided.

2. The cable quick-connection structure for switchgear according to claim 1, characterized in that: The leak-proof unit also includes a pair of leak-proof rings three, each of which is located on both sides of the arrangement of several leak-proof rings one and several leak-proof rings two. One side of the leak-proof ring three is a sloping surface that contacts the leak-proof ring one or the leak-proof ring two, and the other side of the leak-proof ring three is a horizontal wall that is used to fit tightly against the connector two or one side wall of the connector.

3. The cable quick-connection structure for switchgear according to claim 1, characterized in that: The first docking part also includes a first clamping block, which is clamped to the edge of the first cable and clamped to the first cable and electrically connected. After being inserted into the first connector, it is reverse-clamped to the stepped surface provided in the first connector to prevent the first cable and the first connector from separating.

4. The cable quick-connection structure for switchgear according to claim 1, characterized in that: The outer tube is fixedly connected to the second connector. The outer tube is located in the area limited by the cooperation port. The second docking part also includes a second clamping block. The second clamping block is clamped to the side of the second cable and is clamped and electrically connected to the second cable. After being inserted into the second connector, it is clamped in the opposite direction to the stepped surface provided in the second connector to prevent the second cable from separating from the second connector. One side of the second clamping block extends into the outer tube and is inserted and electrically connected to the first clamping block in the first docking part.

5. A quick-connection structure for switchgear cables according to claim 1, characterized in that: On the side of connector one that is farther away from connector two, a closed box one is installed. The closed box one is clamped to the side of connector one. Cable one passes through the closed box one and is embedded in connector one. A closed sleeve one is installed between the closed box and the closed box.

6. A quick-connection structure for switchgear cables according to claim 1, characterized in that: On the side of connector two that is farther away from connector one, a closed box two is installed. The closed box two is clamped to the side of connector two. Cable two passes through the closed box two and is then embedded in connector two. A closed sleeve two is installed between cable two and the closed box two.

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