A wiring connector for distribution lines below 10 kV

Abstract

The present invention relates to the field of line connection technology, specifically to a wiring connector for distribution network lines below 10 kilovolts, comprising a connector and a plug connector, one end of the connector is fixedly connected with a sealed socket, the inside of the plug connector is fixedly connected with a plurality of pins adapted to the sealed socket, the outer surface of the connector is provided with a fastening sleeve for fastening the plug connector, the inside of the plug connector is provided with a plurality of fixing beads for fixing the sealed socket, the inside of the connector is fixedly connected with a closing piece, the inside of the closing piece is provided with a sealing ring for sealing, and the inside of the closing piece is provided with an expansion component for supplying air to the sealing ring. The expansion component supplies air to the sealing ring to cause it to expand highly, thereby more effectively filling the gap between the connector and the plug connector, significantly improving the sealing performance of the connector, and effectively blocking the entry of external air, moisture and other pollutants.

Description

Technical Field

[0001] The invention relates to the technical field of line connection, in particular to a wiring connector for distribution network lines below 10 kilovolts. Background Art

[0002] As an important part of the power system, the distribution network lines below 10 kV are responsible for providing stable and reliable electricity to the majority of power users. However, in actual operation, the distribution network lines often face various faults and challenges, among which the problem of line connectors is particularly prominent. Traditional line connectors may have problems such as poor contact, poor conductivity, and easy aging. These problems may cause frequent line failures and affect the stability and reliability of power supply. Especially in severe weather conditions, such as lightning, strong winds, frost, etc., traditional line connectors are more susceptible to damage, thus causing line failures. In order to solve these problems, a more advanced and reliable wiring connector is needed to replace the traditional connector.

[0003] For example, the patent application with the prior art announcement number CN113178751B includes a connector plug and a connector socket, wherein the connector plug is connected to the connector socket through a locking mechanism, a conductive tube is provided in the middle of the connector plug, one end of the conductive tube is connected to the wire, and the other end of the conductive tube is connected to the conductive block in the middle of the connector socket, and a shielding sleeve is provided on the conductive block. Compared with the existing high-voltage connector, the bars on the conductive block in the high-voltage connector are inclined, and when external tension appears on the wire, the side of the bar that is stressed increases the connection distance between the left and right annular connecting pieces by rotating, thereby reducing the occurrence of line breakage and interface shedding due to external tension.

[0004] The above-mentioned prior art reduces the line breakage caused by external tension by setting bars on the conductive block in the high-voltage connector, which provides a strong guarantee for the stable operation of the power system. However, in actual use, the sealing of the connector is very important for it, which is directly related to the safety and reliability of the entire power system. The existing wiring connector mainly relies on the characteristics of the sealing ring to achieve a precise sealing effect. As a key component of the connector, the performance of the sealing ring directly affects the sealing performance and service life of the connector. However, with the passage of time and long-term use, the sealing ring will gradually lose its original elasticity, resulting in a significant reduction in the sealing effect. Specifically, the sealing ring will experience material aging, deformation, and even rupture under the influence of environmental factors such as pressure and temperature for a long time. These changes will cause the sealing ring to be unable to fit tightly on the contact surface of the connector, thereby forming tiny gaps or leakage points. These gaps or leakage points will become invasion channels for harmful substances such as external air and moisture, thereby causing corrosion, short circuit and other faults inside the connector, which seriously threatens the safe operation of the power system. To this end, the present application proposes a wiring connector for distribution lines below 10 kV. Summary of the invention

[0005] The object of the present invention is to provide a wiring connector for distribution lines below 10 kV to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wiring connector for distribution lines below 10 kV, comprising a connector and a plug-in connector, one end of the connector being fixedly connected to a sealing socket, the interior of the plug-in connector being fixedly connected to a plurality of pins adapted to the sealing socket, the outer surface of the connector being provided with a fastening sleeve for fastening the plug-in connector, the interior of the plug-in connector being provided with a plurality of fixing beads for fixing the sealing socket, the interior of the connector being fixedly connected to a closing piece, the interior of the closing piece being provided with a sealing ring for sealing, the interior of the closing piece being provided with an expansion component for supplying air to the sealing ring, the interior of the fastening sleeve being slidably connected to a plurality of top fixing strips for resisting the fixing beads, the inner wall of the fastening sleeve being fixedly connected to an extension plate, and one side of the extension plate being provided with a reinforcement component for transmitting the top fixing strip to move.

[0007] Preferably, a plurality of circular grooves adapted to the fixing beads are evenly formed on the outer surface of the sealing socket, a plurality of empty grooves for placing the fixing beads are formed inside the connector, and spring sheets supporting the fixing beads are fixedly connected in the empty grooves.

[0008] Preferably, the reinforcement assembly includes a tension spring fixedly connected to one end of the extension plate and fixedly connected to a plurality of top fixing bars, a guide groove is provided at one end of each of the top fixing bars, a plurality of guide strips adapted to the guide groove are fixedly connected to the interior of the closing plate, and a plurality of cranks rotatably connected to the top fixing bars are rotatably connected to the interior of the fastening sleeve.

[0009] Preferably, the expansion assembly includes a plurality of cavities opened inside the closing plate, a plurality of air nozzles connected to the cavities are fixedly connected to one side of the sealing ring, and a piston rod with a piston end placed inside each of the plurality of cavities is provided.

[0010] Preferably, the interiors of the multiple cavities are fixedly connected with fixing rings for the piston rods to slide, the ends of the multiple piston rods away from their piston ends are fixedly connected with transmission members that can abut against the extension plate, and the outer surfaces of the multiple piston rods are sleeved with reset springs for their own reset.

[0011] Preferably, a plurality of empty shells are fixedly connected inside the extension plate, one side of the plurality of empty shells are connected to an air intake pipe, the other side of the plurality of empty shells are connected to an air outlet pipe, and the interior of the plurality of empty shells are rotatably connected to a plurality of exhaust blades.

[0012] Preferably, a common connecting piece is commonly connected between the multiple empty shells, the input shaft of the exhaust blade extends to the inside of the common connecting piece and is fixedly connected to multiple contact pieces, and one end of the multiple transmission parts is fixedly connected to a trigger strip that cooperates with the multiple contact pieces.

[0013] Preferably, one end of the connecting member is fixedly connected to a plurality of fixing members.

[0014] Preferably, an outer surface of the connecting piece is fixedly connected with an external thread, and an inner surface of the fastening sleeve is fixedly connected with an internal thread threadably connected to the external thread.

[0015] Preferably, a plurality of convex rings are fixedly connected to the outer surface of the fastening sleeve, and the outer surface of the connector is configured to be conical.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The connector achieves the first level of fastening through the cooperation of the internal and external threads and the friction of the fastening sleeve on the tapered outer surface of the plug-in. This design ensures a tight connection between the connector and the plug-in and prevents loosening. The second level of fastening mechanism is achieved through the fixing bead and the top fixing strip. When the fastening sleeve moves, the top fixing strip will resist the fixing bead to press it down and snap into the circular groove on the connector, thereby further increasing the friction between the connector and the plug-in and achieving a more secure connection. The spring sheet set inside the plug-in can support the fixing bead, so that in the initial In the initial state, the connector can be smoothly inserted into the connector without being blocked by the fixing beads. The design of the guide bar and the guide groove allows the top fixing bar to start moving at a specific moment, avoiding unnecessary friction and resistance when the fastening sleeve just starts to rotate. When the connector needs to be disassembled, just reverse the fastening sleeve, the guide bar will quickly disengage from the guide groove, and the top fixing bar will reset under the tension of the tension spring, thereby releasing the fastening between the fixing beads and the circular groove, making the disassembly process simple and quick. This design also facilitates the reinstallation or replacement of the connector when necessary.

[0018] The expansion component supplies air to the sealing ring to expand it highly, thereby more effectively filling the gap between the connector and the plug-in. This design significantly improves the sealing performance of the connector, effectively blocks the entry of external air, moisture and other contaminants, and protects the distribution network line from damage. Since the sealing ring is fully expanded, it can maintain a stable sealing effect within a larger pressure and temperature range. The contact between the closing piece and the plug-in forms a preliminary seal, and the addition of the sealing ring further enhances the sealing effect. The expansion component supplies air to the sealing ring to expand it highly, thereby filling the gap between the connector and the plug-in, effectively blocking the entry of external air, which reduces the connection failure caused by poor sealing and enhances the durability and reliability of the connector. Even under harsh environmental conditions, the connector can maintain excellent sealing performance. The sealing ring may be damaged or aged due to friction, temperature changes and other factors during long-term use. By continuously replenishing air in the expansion component, the pressure inside the sealing ring can be maintained, slowing down its damage and aging. This extends the service life of the sealing ring and reduces replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the explosion structure after the section of the present invention;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 6 is a schematic diagram of the cross-sectional structure of the connecting member in the present invention;

[0025] Figure 7 It is a partial cross-sectional structural schematic diagram of the plug connector in the present invention;

[0026] Figure 8 It is a partial structural schematic diagram of the fastening sleeve in the present invention;

[0027] Fig. 9 It is a schematic diagram of a partial cross-sectional structure of a connecting piece and a fastening sleeve in the present invention;

[0028] Fig.10 For the present invention Fig. 9 A magnified schematic diagram of the structure at B in the middle;

[0029] Fig.11 It is a schematic diagram of the structure of the cavity hole in the present invention;

[0030] Fig.12 It is a schematic diagram of the local structure of the extension plate in the present invention;

[0031] Fig.13 It is a structural schematic diagram of the transmission member in the present invention;

[0032] Fig.14 For the present invention Fig.13 A magnified schematic diagram of the structure at C in the middle;

[0033] Fig.15 It is a schematic diagram of the cross-sectional structure of the hollow shell of the present invention.

[0034] In the figure: 100, connecting piece; 101, plug-in piece; 102, fastening sleeve; 103, convex ring; 104, fixing piece; 105, sealing socket; 106, pin; 200, fixing bead; 201, circular groove; 202, spring sheet; 203, internal thread; 204, external thread; 205, top fixing strip; 206, guide groove; 207, tension spring; 208, guide strip; 209, crank; 300, sealing ring; 301, closing piece; 302, air nozzle; 303, cavity hole; 304, piston rod; 305, fixing ring; 306, return spring; 307, transmission piece; 400, extension plate; 401, empty shell; 402, suction pipe; 403, exhaust pipe; 404, suction blade; 405, contact piece; 406, common piece; 407, trigger strip. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figure 1 , Figure 4 as well as Figure 5 The present invention provides a technical solution: a wiring connector for a distribution network line below 10 kV, comprising a connector 100 and a plug connector 101, one end of the connector 100 is fixedly connected with a sealed socket 105, the inside of the plug connector 101 is fixedly connected with a plurality of pins 106 adapted to the sealed socket 105, the outer surface of the connector 100 is provided with a fastening sleeve 102 for fastening the plug connector 101, the inside of the plug connector 101 is provided with a plurality of fixing beads 200 for fixing the sealed socket 105, the friction between the plug connector 101 and the sealed socket 105 can be increased by providing the fixing beads 200, so that the connector 100 and the plug connector 101 are fastened, the outer surface of the connector 100 is fixedly connected with an external thread 204, the inside of the fastening sleeve 102 is fixedly connected with an internal thread 203 threadedly connected with the external thread 204, the outer surface of the fastening sleeve 102 is fixedly connected with a plurality of convex rings 103, the outer surface of the plug connector 101 The structure is conical, and the cooperation between the internal thread 203 and the external thread 204 can drive the fastening sleeve 102 to move so that one end of it is close to the plug-in component 101. At the same time, the outer surface of the plug-in component 101 is conical, which can gradually increase the friction between the fastening sleeve 102 and the fastening sleeve 102, thereby achieving a fastening effect. The interior of the fastening sleeve 102 is slidably connected with a plurality of top fixing strips 205 that resist the fixing beads 200. By setting the top fixing strips 205, the fixing beads 200 can be resisted to press them down, so that the fixing beads 200 move to increase the friction between the fastening sleeve 102, and the inner wall of the fastening sleeve 102 is fixedly connected with an extension plate 400, and a reinforcement component for driving the top fixing strip 205 to move is provided on one side of the extension plate 400. By setting the reinforcement component, the fixing beads 200 can be driven to press down while the fastening sleeve 102 is tightened, thereby increasing the friction between it and the sealing socket 105, so that the two are carried out synchronously to achieve a further reinforcement effect.

[0037] Among them, see Figure 2 , Figure 3 as well as Figure 4The outer surface of the sealing socket 105 is evenly provided with a plurality of circular grooves 201 adapted to the fixing beads 200. The circular grooves 201 can be better used to place the fixing beads 200, thereby improving the fastening effect between the connector 100 and the plug-in connector 101. The inside of the plug-in connector 101 is provided with a plurality of empty grooves for placing the fixing beads 200. The empty grooves are fixedly connected with spring sheets 202 supporting the fixing beads 200. At the same time, the spring sheets 202 can support the fixing beads 200, so that the plug-in connector 101 will not conflict with the fastening sleeve 102 in the initial state, and will enter the circular groove 201 only under the resistance force of the top fixing strip 205, thereby improving the smoothness of the sealing socket 105 inserted into the plug-in connector 101.

[0038] For further information, see Figure 7 , Fig. 9 as well as Fig.10 The reinforcement component includes a tension spring 207 fixedly connected to one end of the extension plate 400 and fixedly connected to multiple top fixing strips 205. One end of the multiple top fixing strips 205 is provided with a guide groove 206. The interior of the closing piece 301 is fixedly connected to multiple guide strips 208 adapted to the guide groove 206. The interior of the fastening sleeve 102 is rotatably connected to multiple cranks 209 rotatably connected to the top fixing strip 205. By setting the guide groove 206 and the extension plate 400 to be continuous, the movement of the top fixing strip 205 is linked to the fastening sleeve 102. At the same time, the initial position of the top fixing strip 205 is far away from the guide strip 208. Only when the fastening sleeve 102 is closed, the top fixing strip 205 is locked. When the inner wall of the fixing sleeve 102 is about to completely contact the surface of the plug-in component 101, its guide bar 208 is inserted into the guide groove 206 to guide it, so that the top fixing bar 205 moves and is pushed by the crank 209 to bend. It is worth mentioning that the end of the top fixing bar 205 connected to the crank 209 is constructed of soft material, which is convenient for bending it to contact the fixing bead 200 and move downward. At the same time, when the fastening sleeve 102 is reversed, the guide bar 208 can be quickly disengaged from the guide groove 206, so that the top fixing bar 205 is reset under the tension of the tension spring 207, thereby releasing the fastening between the fixing bead 200 and the circular groove 201.

[0039] Specifically, when in use, the connector 100 is first inserted into the interior of the plug connector 101, and the multiple pins 106 are just inserted into the interior of the sealed plug hole 105, and then the convex ring 103 is contacted to rotate the fastening sleeve 102 so that the internal thread 203 rotates on the surface of the external thread 204, thereby driving the fastening sleeve 102 to move while rotating, and finally one end of the fastening sleeve 102 will contact the surface of the plug connector 101 to fasten the two together. At the same time, when the connector 100 is inserted into the interior of the plug connector 101, the multiple circular grooves 201 will be located on the same axis as the multiple fixing beads 200, and when When the fastening sleeve 102 rotates and moves, it will continuously drive the extension plate 400 to move, thereby driving the top fixing bar 205 to move. Finally, the guide groove 206 in the top fixing bar 205 will come into contact with the guide bar 208, and then under its guidance, the top fixing bar 205 will be driven to move in the direction away from the extension plate 400, thereby driving one end of the top fixing bar 205 to squeeze the crank 209, thereby driving it to tilt and press downward, so that the top fixing bar 205 comes into contact with the fixing bead 200 and squeezes the spring sheet 202, thereby falling into the inside of the circular groove 201, so that the connector 101 and the connector 100 are further fixed.

[0040] In summary, the connector achieves the first level of fastening through the cooperation of the internal thread 203 and the external thread 204, and the friction of the fastening sleeve 102 on the conical outer surface of the plug 101. This design ensures a tight connection between the connector 100 and the plug 101 to prevent loosening. The second level of fastening mechanism is achieved through the fixing bead 200 and the top fixing strip 205. When the fastening sleeve 102 moves, the top fixing strip 205 will resist the fixing bead 200 to press it down and snap into the circular groove 201 on the connector 100, thereby further increasing the friction between the connector 100 and the plug 101 and achieving a more secure connection. The spring sheet 202 arranged inside the plug 101 can support the fixing The beads make it possible for the connector 101 to be smoothly inserted into the connector 100 in the initial state without being obstructed by the fixing beads 200. The design of the guide strips 208 and the guide grooves 206 makes it possible for the top fixing strip 205 to start moving only at a specific moment, thus avoiding unnecessary friction and resistance when the fastening sleeve 102 just starts to rotate. When the connector needs to be disassembled, only the fastening sleeve 102 needs to be reversed, and the guide strips 208 will quickly disengage from the guide grooves 206, and the top fixing strip 205 will reset under the tension of the tension spring 207, thereby releasing the fastening between the fixing beads 200 and the circular grooves 201, making the disassembly process simple and quick. This design also facilitates the reinstallation or replacement of the connector when necessary.

[0041] Example 2: Please refer to Figure 6 , Figure 8 as well as Fig.11The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a wiring connector for a distribution network line below 10 kV, a closing piece 301 is fixedly connected to the inside of the connector 100, and the closing piece 301 is provided so that one end of the connector 101 can be in contact with it, thereby forming a seal, and a sealing ring 300 for sealing is provided inside the closing piece 301. The sealing ring 300 can improve the sealing between the connector 101 and the closing piece 301, thereby preventing external air from entering the inside and causing damage, and an expansion component for supplying air to the sealing ring 300 is provided inside the closing piece 301. By providing the expansion component, air can be effectively replenished in the sealing ring 300, so that the sealing ring 300 is highly expanded to improve its sealing performance, thereby suppressing the damage caused by its normal use.

[0042] Furthermore, the expansion component includes a plurality of cavities 303 opened inside the closing plate 301, a certain amount of air is stored inside the plurality of cavities 303, a plurality of air nozzles 302 connected to the cavities 303 are fixedly connected to one side of the sealing ring 300, and a piston rod 304 with a piston end placed inside the plurality of cavities 303 is provided inside each of the cavities 303, and when the piston rod 304 moves in a direction close to the sealing ring 300, it pushes the gas in the cavity 303 to be transported into the sealing ring 300 to replenish the gas on its inner wall.

[0043] Among them, see Figure 4 , Fig.11 as well as Fig.12 The interiors of the multiple cavities 303 are fixedly connected with fixing rings 305 for the piston rod 304 to slide, and the fixing rings 305 are used to support the piston rod 304 to limit its position. The ends of the multiple piston rods 304 away from their piston ends are fixedly connected with transmission members 307 that can contact the extension plate 400. The outer surfaces of the multiple piston rods 304 are sleeved with reset springs 306 for their own reset. As the fastening sleeve 102 continues to move, the transmission member 307 will be driven to move and the gas in the cavity 303 will be continuously transported to the inside of the sealing ring 300.

[0044] Specifically, at the same time, the extension plate 400 will continue to move with the fastening sleeve 102 and will abut the transmission member 307, causing the piston rod 304 to continuously slide inside the fixing ring 305, thereby pushing the gas in the cavity 303 to be transported to the inside of the sealing ring 300, thereby driving the sealing ring 300 to further expand, thereby filling the gap between the connector 100 and the plug-in component 101, and achieving efficient sealing.

[0045] In summary, the expansion component supplies air into the sealing ring 300 to make it highly expanded, thereby more effectively filling the gap between the connector 100 and the plug connector 101. This design significantly improves the sealing performance of the connector, effectively blocks the entry of external air, moisture and other pollutants, and protects the distribution network line from damage. Since the sealing ring 300 is fully expanded, it can maintain a stable sealing effect within a larger pressure and temperature range. The contact between the closing piece 301 and the plug connector 101 forms a preliminary seal, and the addition of the sealing ring 300 further enhances the sealing effect. The expansion component supplies air into the sealing ring 300 to make it highly expanded, thereby filling the gap between the connector 100 and the plug connector 101, effectively blocking the entry of external air, which reduces the connection failure caused by poor sealing and enhances the durability and reliability of the connector. Even under harsh environmental conditions, the connector can maintain excellent sealing performance. The sealing ring 300 may be damaged or aged due to factors such as friction and temperature changes during long-term use. By continuously replenishing the air of the expansion assembly, the pressure inside the sealing ring 300 can be maintained, and the speed of its damage and aging can be slowed down, thereby extending the service life of the sealing ring 300 and reducing the replacement cost.

[0046] Example 3: Please refer to Fig.13 , Fig.14 as well as Fig.15 The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a wiring connector for distribution lines below 10 kV, a plurality of empty shells 401 are fixedly connected inside the extension plate 400, one side of the plurality of empty shells 401 are connected to an air intake pipe 402, the other side of the plurality of empty shells 401 are connected to an air outlet pipe 403, the interior of the plurality of empty shells 401 are rotatably connected to a plurality of exhaust blades 404, the air intake pipe 402 extends between the connector 100 and the plug-in connector 101, so that the empty shell 401 generates suction and evacuates the gas between the connector 100 and the plug-in connector 101 to form a negative pressure, and the air outlet pipe 403 discharges the gas to the gap between the connector 100 and the fastening sleeve 102, making it become high pressure and expand to block the outside air from entering, forming a multi-layer seal.

[0047] Among them, a common connecting piece 406 is commonly connected between multiple empty shells 401, the input shaft of the exhaust blade 404 extends to the inside of the common connecting piece 406 and is fixedly connected to multiple contact pieces 405, and one end of multiple transmission parts 307 is fixedly connected to a trigger bar 407 that cooperates with the multiple contact pieces 405. The trigger bar 407 can cooperate with the contact piece 405 so that the fastening sleeve 102 can continuously drive the exhaust blade 404 to rotate and exhaust air when moving, thereby completing efficient work.

[0048] Specifically, when the extension plate 400 contacts the transmission member 307, the multiple contact pieces 405 contact the trigger bar 407. At this time, the trigger bar 407 needs to be driven to rotate in order to pass over the contact piece 405. The rotation of the contact piece 405 will drive the suction blade 404 to rotate inside the empty shell 401, thereby sucking the gas in the intake pipe 402 to the outlet pipe 403. At this time, the multiple intake pipes 402 continuously inhale air from the gap between the connector 100 and the plug-in component 101, so that a negative pressure is formed between the plug-in component 101 and the connector 100, thereby further forming a seal. At the same time, the outlet pipe 403 transports the gas to the other side of the connector 100 to form a high pressure, thereby blocking the entry of external air.

[0049] In summary, the empty shell 401 on the extension plate 400 can efficiently extract the gas between the connector 100 and the plug-in component 101 through the design of the air intake pipe 402 and the air outlet pipe 403, forming a negative pressure area, thereby enhancing the sealing effect. At the same time, the air outlet pipe 403 discharges the gas to the gap between the connector 100 and the fastening sleeve 102, forming a high-pressure area, further blocking the entry of outside air. This multi-layer sealing design significantly improves the sealing performance of the connector. Due to the use of mechanical air extraction, this design can maintain a more stable sealing state than traditional sealing methods. Even when the external environment changes or is impacted by external forces, a good sealing effect can be maintained, thereby improving the reliability and stability of the connector. When the fastening sleeve 102 moves, the transmission member 307 can drive the trigger bar 407 to cooperate with the contact piece 405, thereby driving the air extraction blade 404 to rotate. This design realizes the linkage between the movement of the fastening sleeve 102 and the air extraction action, improving the work efficiency and the degree of automation. The empty shell 401, as the main part of the air extraction system, is connected to the external environment through the air intake pipe 402 and the air outlet pipe 403. This design makes the air extraction process more efficient and orderly, while ensuring the smooth flow of gas and the formation of a sealing effect. The air extraction blade 404 rotates under the drive of the contact piece 405 to realize the extraction and delivery of gas. This design not only improves the air extraction efficiency, but also ensures the stability and reliability of the air extraction process.

[0050] Working principle: When in use, first insert the connector 100 into the interior of the connector 101, and then the multiple pins 106 are inserted into the interior of the sealing hole 105, and then contact the convex ring 103 to rotate the fastening sleeve 102 so that the internal thread 203 rotates on the surface of the external thread 204, thereby driving the fastening sleeve 102 to rotate and move, and finally one end of the fastening sleeve 102 will contact the surface of the connector 101 to fasten the two;

[0051] At the same time, when the connector 100 is inserted into the interior of the connector 101, the multiple circular grooves 201 will be located on the same axis as the multiple fixing beads 200, and when the fastening sleeve 102 rotates and moves, it will continuously drive the extension plate 400 to move, thereby driving the top fixing bar 205 to move, and finally the guide groove 206 in the top fixing bar 205 will conflict with the guide bar 208, and then under its guidance, the top fixing bar 205 will be driven to move in the direction away from the extension plate 400, thereby driving one end of the top fixing bar 205 to squeeze the crank 209, thereby driving it to tilt and press downward, so that the top fixing bar 205 conflicts with the fixing beads 200 and squeezes the spring sheet 202 to fall into the interior of the circular groove 201, so that the connector 101 and the connector 100 are further fixed;

[0052] At the same time, the extension plate 400 continuously moves with the fastening sleeve 102 and contacts the transmission member 307, so that the piston rod 304 continuously slides inside the fixing ring 305, thereby pushing the gas in the cavity 303 to be transported to the inside of the sealing ring 300, and then driving the sealing ring 300 to further expand, thereby filling the gap between the connector 100 and the plug-in connector 101, and achieving efficient sealing;

[0053] When the extension plate 400 contacts the transmission member 307, the multiple contact pieces 405 contact the trigger strip 407. At this time, the trigger strip 407 needs to be driven to rotate in order to pass over the contact piece 405. The rotation of the contact piece 405 will drive the suction blade 404 to rotate inside the empty shell 401, thereby sucking the gas in the suction pipe 402 to the outlet pipe 403. At this time, the multiple suction pipes 402 continuously suck air from the gap between the connector 100 and the plug-in component 101, so that a negative pressure is formed between the plug-in component 101 and the connector 100, thereby further forming a seal. At the same time, the outlet pipe 403 transports the gas to the other side of the connector 100 to form a high pressure, thereby blocking the entry of external air.

[0054] The waterproof grade of this electrical connector complies with the national standard GB4208-2017, which specifies the classification, code, test requirements and test methods of the enclosure protection grade in detail, and is an important basis for evaluating the waterproof performance of electrical equipment. The following is a detailed description of the waterproof grade of this electrical connector.

[0055] Protection and stability: According to the GB4208-2017 standard, the waterproof level of this electrical connector has reached a high level. Specifically, it can effectively prevent water from entering its interior in various forms, thereby ensuring the normal operation of the device in a humid or underwater environment. The waterproof level is divided based on the device's ability to protect against water, and the larger the number, the stronger the protection. The waterproof level of this electrical connector is clearly marked in the standard, which provides a clear reference for users and manufacturers.

[0056] Protection: This electrical connector adopts advanced sealing technology and materials (the expansion component expands the sealing ring 300 by supplying air to it, thereby more effectively filling the space between the connector 100 and the plug-in connector 101), ensuring that water cannot penetrate into the interior of the device under conditions of long-term underwater immersion or high-pressure water spraying. This excellent waterproof performance enables the electrical connector to maintain stable operation even in harsh outdoor environments.

[0057] Strong dust and dirt resistance: In addition to its waterproof performance, this electrical connector also has excellent dust and dirt resistance (the hollow shell 401 on the extension plate 400 can efficiently extract the gas between the connector 100 and the plug-in component 101 through the design of the air intake pipe 402 and the air outlet pipe 403 to form a negative pressure area). Its shell is tightly designed to effectively block the entry of dust and dirt, thereby extending the service life of the equipment.

[0058] Excellent corrosion resistance: The electrical connector is made of corrosion-resistant materials and can maintain stable performance in harsh environments such as humidity and salt spray. This corrosion resistance makes the electrical connector widely used in the marine, chemical and other industries.

[0059] Stable and reliable structure: The structural design of the electrical connector is reasonable, and the connection between the various components is tight and firm (when the connector 100 is inserted into the interior of the plug-in component 101, the multiple circular grooves 201 will be located on the same axis as the multiple fixing beads 200, and then the fixing beads 200 are snapped into the circular grooves 201 for fixing). This stable and reliable structural design makes the electrical connector less likely to malfunction or be damaged during long-term use. At the same time, the outer surface of the connector 100 is provided with a fastening sleeve 102 for fastening the plug-in component 101 to form a rigid protection.

[0060] In summary, the waterproof grade of this electrical connector complies with the national standard GB4208-2017, and has excellent protection and stability. Its excellent waterproof performance, strong dust and dirt resistance, superior corrosion resistance, stable and reliable structure, stable and consistent performance and long service life enable it to maintain stable operation in various harsh environments.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wiring connector for a distribution network line below 10 kV, comprising a connector (100) and a plug connector (101), characterized in that: One end of the connector (100) is fixedly connected to a sealing socket (105); a plurality of pins (106) adapted to the sealing socket (105) are fixedly connected to the interior of the connector (101); a fastening sleeve (102) for fastening the connector (101) is provided on the outer surface of the connector (100); a plurality of fixing beads (200) for fixing the sealing socket (105) are provided inside the connector (101); a sealing sheet (300) is fixedly connected to the interior of the connector (100); 1), a sealing ring (300) for sealing is arranged inside the closing piece (301), an expansion component for transmitting air into the sealing ring (300) is arranged inside the closing piece (301), a plurality of top fixing strips (205) for resisting the fixing beads (200) are slidably connected inside the fastening sleeve (102), an extension plate (400) is fixedly connected to the inner wall of the fastening sleeve (102), and a reinforcement component for driving the top fixing strip (205) to move is arranged on one side of the extension plate (400); The outer surface of the sealing insertion hole (105) is evenly provided with a plurality of circular grooves (201) adapted to the fixing beads (200), the interior of the plug connector (101) is provided with a plurality of empty grooves for placing the fixing beads (200), and the empty grooves are fixedly connected with spring sheets (202) for supporting the fixing beads (200); The reinforcement assembly comprises a tension spring (207) fixedly connected to one end of the extension plate (400) and fixedly connected to a plurality of top fixing strips (205); one end of each of the plurality of top fixing strips (205) is provided with a guide groove (206); the interior of the closing plate (301) is fixedly connected to a plurality of guide strips (208) adapted to the guide groove (206); the interior of the fastening sleeve (102) is rotatably connected to a plurality of cranks (209) rotatably connected to the top fixing strips (205); The expansion assembly comprises a plurality of cavities (303) opened inside the closing plate (301); a plurality of air nozzles (302) in communication with the cavities (303) are fixedly connected to one side of the sealing ring (300); and a piston rod (304) with a piston end placed inside each of the plurality of cavities (303) is disposed.

2. A wiring connector for distribution lines below 10 kV according to claim 1, characterized in that: A fixing ring (305) for sliding the piston rod (304) is fixedly connected inside the plurality of cavities (303); a transmission member (307) capable of contacting the extension plate (400) is fixedly connected at one end of the plurality of piston rods (304) away from the piston end; and a return spring (306) for returning the piston rods (304) is sleeved on the outer surface of the plurality of piston rods (304).

3. A wiring connector for distribution lines below 10 kV according to claim 2, characterized in that: A plurality of empty shells (401) are fixedly connected inside the extension plate (400), one side of the plurality of empty shells (401) is connected to an air intake pipe (402), the other side of the plurality of empty shells (401) is connected to an air outlet pipe (403), and the interior of the plurality of empty shells (401) is rotatably connected to a plurality of air extraction blades (404).

4. A wiring connector for distribution lines below 10 kV according to claim 3, characterized in that: A common connecting piece (406) is commonly connected between the plurality of empty shells (401); an input shaft of the air extraction blade (404) extends into the interior of the common connecting piece (406) and is fixedly connected to a plurality of contact pieces (405); and one end of each of the plurality of transmission members (307) is fixedly connected to a trigger bar (407) that cooperates with the plurality of contact pieces (405).

5. A wiring connector for distribution lines below 10 kV according to claim 1, characterized in that: One end of the connecting piece (100) is fixedly connected to a plurality of fixing pieces (104).

6. A wiring connector for distribution lines below 10 kV according to claim 1, characterized in that: An external thread (204) is fixedly connected to the outer surface of the connecting piece (100), and an internal thread (203) threadably connected to the external thread (204) is fixedly connected to the interior of the fastening sleeve (102).

7. A wiring connector for distribution lines below 10 kV according to claim 6, characterized in that: A plurality of convex rings (103) are fixedly connected to the outer surface of the fastening sleeve (102), and the outer surface of the plug-in component (101) is configured to be conical.

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