A quick plug type bypass live working cable intermediate joint

Abstract

This invention discloses a quick-connect type bypass uninterruptible power supply (UDPS) cable intermediate joint, relating to the field of bypass UDPS technology. It includes an insulating shell, with a plug-in end at one end. A busbar is inserted inside the insulating shell, and a contact plate is located at the end of the busbar near the plug-in end. A plug-in groove is formed on the end face of the plug-in end, and a bottom groove is formed at the bottom of the plug-in groove. A bottom plate is laid on the bottom surface of the plug-in groove. A top plate is movably arranged inside the plug-in groove. Elastic sheets are symmetrically arranged between the top plate and the top surface of the plug-in groove, with the bending directions of the elastic sheets on both sides opposite. A limiting mechanism is provided in the bottom groove. The limiting mechanism includes a guide groove, which is formed on the bottom surface of the plug-in groove. A guide post slides through the bottom of the guide groove, and a limiting post is located at the top of the guide post. This invention simultaneously achieves quick plug-in operation and high adaptability, and has a reliable mechanical limiting structure, while meeting multiple engineering requirements for self-cleaning protection and stable electrical connection.

Description

Technical Field

[0001] This invention relates to the field of bypass uninterrupted power supply (UDPS) technology, specifically to a quick-connect type bypass uninterrupted power supply (UDPS) cable intermediate joint. Background Technology

[0002] With the increasing demands for power supply reliability in power distribution networks, bypass live-line operation has become a core technical means to ensure uninterrupted power supply to users during power distribution network fault repair and line maintenance and renovation. To ensure power supply reliability, when a power distribution network fault occurs, a temporary bypass transmission system needs to be quickly constructed to isolate and repair the faulty section while continuously ensuring normal power supply to users.

[0003] However, under the current technological conditions, live-line work in power distribution networks still faces several prominent challenges: the on-site construction process is complex and the safety is relatively low; it relies heavily on the professional skills of the operators; any oversight during operation may lead to short circuit risks; due to the non-standard line models, various specifications of cable accessories are often required to achieve matching installation; a single operation takes too long, and the cable connection process alone may cause power outages of several hours; in addition, there are many inconveniences in the on-site laying and deployment of the work equipment.

[0004] Especially during the actual construction of bypass transmission lines, the problem of the inability to directly and quickly connect the standard connectors of bypass cables with the copper lug connectors of conventional cables is frequently encountered, which further restricts the work efficiency and the speed of power restoration.

[0005] Chinese Patent Application No. 202210648344.8 discloses a novel flexible cable intermediate quick-connect unified connector for bypass uninterrupted power operation. Its main components include a cylindrical box with 20cm protective sleeves at both ends. One end of the box is equipped with a standard connector quick-connect head, and the other end is equipped with a connector that connects to a regular cable connector, with a certain amount of operating space. The box is equipped with a busbar inside, and the standard connector quick-connect head and the regular connector adapter are connected through the busbar inside the box. The busbar is equipped with an insulating sleeve to provide insulation protection.

[0006] However, existing connector structures that are compatible with copper lugs only achieve positioning through a single plug-in connection. After the copper lug is connected, it is prone to axial movement and circumferential rotation. Under the vibration and external disturbance of the field working environment, the contact surface between the connector and the copper lug is prone to relative wear, which further deteriorates the electrical contact performance and may even cause the connector to loosen.

[0007] In addition, the work site is mostly an outdoor environment, where dust and impurities are easily attached to the contact surface of the joint. After long-term use, an oxide layer and a corrosion layer will also form on the contact surface, which will significantly reduce the effective conductive contact area, resulting in increased contact resistance and severe overheating of the joint, seriously threatening the operational stability of the bypass transmission system. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the existing defects and provide a quick-connect bypass uninterrupted power supply cable intermediate joint that can simultaneously take into account quick plugging operation and high adaptability, and has a reliable mechanical limiting structure. It can also meet multiple engineering requirements of self-cleaning protection and stable electrical connection, and can effectively solve the problems in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a quick-connect type bypass uninterruptible operation cable intermediate joint, comprising an insulating shell, one end of the insulating shell being provided with a plug-in end, a busbar being inserted inside the insulating shell, and a contact plate being provided at the end of the busbar near the plug-in end; The end face of the plug-in terminal is provided with a plug-in groove, the bottom of the plug-in terminal is provided with a bottom groove, and the bottom surface of the plug-in groove is covered with a bottom plate. The internal movable part of the insertion slot is equipped with a top plate; Elastic sheets are symmetrically provided between the top plate and the top surface of the insertion slot, and the bending directions of the elastic sheets on both sides are opposite. A limiting mechanism is provided inside the bottom groove; The limiting mechanism includes a guide groove, which is formed on the bottom surface of the insertion groove. A guide post slides through the bottom of the guide groove, and a limiting post is provided on the top of the guide post. It also includes an auxiliary mechanism located above the top plate. The auxiliary mechanism includes an air nozzle and a telescopic bladder that supplies air to the air nozzle. The air nozzle is uniformly embedded in the inner end surface of the top plate.

[0010] Preferably, the other end of the insulating housing is provided with a plug-in end, the busbar is electrically connected to the plug-in end, and one end of the base plate is electrically connected to the busbar.

[0011] Preferably, the top plate is located above the bottom plate, and the end of the top plate is slidably connected to a groove formed on the touch plate. The ends of the bottom plate and the top plate are provided with arc angles on opposite sides.

[0012] Preferably, the guide groove penetrates the bottom plate, the limiting post slides with the guide groove, a limiting spring is sleeved on one end of the guide post located in the guide groove, a groove seat is hinged to one end of the guide post located in the bottom groove, and a handle is provided at one end of the groove seat.

[0013] Preferably, the telescopic bladder is disposed between the top surface of the insertion slot and the top plate, and the telescopic bladder is located between the elastic sheets on both sides; Each air nozzle is connected by a connecting pipe, which is connected to the telescopic bladder via an air guide tube.

[0014] Preferably, it also includes a cylinder seat, which is located in the middle of the elastic plates on both sides. The end of the cylinder seat on both sides away from the telescopic bladder is slidably fitted with a sliding rod. The cylinder seat is connected to the telescopic bladder through a connecting pipe. Both the air guide pipe and the connecting pipe are equipped with control valves.

[0015] Preferably, the system further includes a cleaning mechanism located between the bottom plate and the top plate. The cleaning mechanism includes a guide groove, which is formed on the inner wall of the insertion groove. A guide rod is provided in the guide groove, and a slide is movably sleeved on the guide rod. A scraper is provided on the slide, and a return spring is sleeved on the guide rod.

[0016] Preferably, the slide block is slidably connected to the guide groove, the scraper block has a through groove in the middle, and the scraper block has inclined surfaces at both the upper and lower ends on the inner side. The inclined surfaces on the upper and lower sides respectively cooperate with the arc angles at the ends of the top plate and the bottom plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The plug-in terminal of this invention can be directly plugged into the copper lug connector of conventional cables. Electrical conduction between the two ends is achieved through the busbar inside the insulating shell. This solves the problem that standard connectors of bypass cables and conventional cable copper lug connectors cannot be directly and quickly connected in the prior art. It can complete the matching connection of different types of cable connectors without the need to equip the site with various specifications of cable accessories. This simplifies the on-site construction process of bypass uninterrupted power supply, reduces the dependence on the professional skills of personnel, shortens the operation time of cable connection, improves the construction efficiency of bypass power transmission system, and ensures the continuity and reliability of power supply for users.

[0018] 2. This invention opens the air duct and closes the connecting pipe by switching the control valve. Repeatedly moving the slot seat drives the limit post to reciprocate, thereby driving the top plate to move up and down along the slide groove. When the top plate moves upward, it compresses the telescopic bladder, generating a high-pressure airflow inside the bladder. The airflow is distributed to each air nozzle embedded in the inner end of the top plate through the air duct and connecting pipe. Finally, the air nozzle is sprayed downward into the insertion space between the top plate and the bottom plate, effectively removing dust and impurities adhering to the contact surface. This prevents impurities from causing contact gaps between the copper lug and the contact surface, ensuring effective contact of the conductive contact surface and reducing the risk of contact resistance and joint overheating.

[0019] 3. In this invention, when the copper lug is inserted, the air duct is closed and the connecting pipe is open. The airflow generated by the copper lug driving the top plate to compress the telescopic bladder enters the two side cylinder seats through the connecting pipe, pushing the two side sliding rods to extend backward and abut against the inner wall of the insertion groove. When the copper lug is accidentally impacted by an external force towards the top plate, the telescopic bladder is further compressed. At this time, the extension tendency of the sliding rod is blocked by the inner wall of the insertion groove, and the reaction force generated at the same time acts on the middle of the elastic plate, providing reverse support force for the elastic plate, preventing the two side elastic plates from bending further in opposite directions, and restricting the top plate from continuing to move upward. This avoids the copper lug from dislodging from the limiting post due to excessive upward movement of the top plate and prevents the elastic plate from fatigue damage due to excessive deformation.

[0020] 4. Before the copper lug is inserted, the present invention allows the scraper to be manually pushed along the insertion slot by a matching tool. During the sliding process, the upper and lower surfaces of the scraper are always in close contact with the contact surfaces of the top and bottom plates. The scraping action directly removes the oxide layer, corrosion layer, and tightly adhered adhesives on the contact surface. At the same time, the airflow of the auxiliary mechanism can be used to blow away the scraped debris through the through groove in the middle of the scraper to discharge it into the insertion space. This solves the problem in the prior art where the contact surface of the connector is formed by oxide and corrosion layers after long-term use, resulting in a decrease in the effective conductive area. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the axial structure of the present invention; Figure 3 This is a schematic cross-sectional view of the present invention; Figure 4 This is a schematic cross-sectional view of the plug-in end of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the internal structure of the plug-in terminal of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C; Figure 9 This is a schematic diagram of the copper nose structure.

[0022] In the diagram: 1. Insulating shell; 101. Plug-in end; 102. Busbar; 103. Contact plate; 2. Plug-in end; 201. Plug-in groove; 202. Bottom groove; 203. Bottom plate; 204. Top plate; 205. Slide groove; 206. Elastic sheet; 3. Limiting mechanism; 301. Guide groove; 302. Guide post; 303. Limiting post; 304. Limiting spring; 305. Slot seat; 4. Auxiliary mechanism; 401. Telescopic bladder; 402. Air nozzle; 403. Connecting pipe; 404. Air guide pipe; 405. Cylinder seat; 406. Slide rod; 407. Connecting pipe; 5. Cleaning mechanism; 501. Guide groove; 502. Guide rod; 503. Slide seat; 504. Scraper seat; 505. Return spring; 6. Copper lug. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1 Please see Figures 1-7 and Figure 9 This embodiment provides a technical solution: a quick-connect type bypass uninterruptible operation cable intermediate joint, including an insulating shell 1, a plug-in end 2 at one end of the insulating shell 1, a busbar 102 inserted inside the insulating shell 1, a contact plate 103 at one end of the busbar 102 near the plug-in end 2, and a plug-out end 101 at the other end of the insulating shell 1, and the busbar 102 is electrically connected to the plug-out end 101.

[0025] Specifically, the busbar 102 is used to transmit electrical energy inside the insulating housing 1. After the copper lug 6 connected to the cable is plugged into the plug end 2 and the plug-out end 101 is plugged into the port of the cable on the other side, the conduction of the cables on both sides can be realized.

[0026] The end face of the plug-in terminal 2 is provided with a plug-in groove 201, and the bottom of the plug-in terminal 2 is provided with a bottom groove 202. The bottom surface of the plug-in groove 201 is covered with a bottom plate 203. One end of the bottom plate 203 is electrically connected to the busbar 102. A top plate 204 is movably provided inside the plug-in groove 201. The top plate 204 is located above the bottom plate 203. The end of the top plate 204 is slidably connected to the sliding groove 205 opened on the contact plate 103. The ends of the bottom plate 203 and the top plate 204 are provided with arc corners on opposite sides.

[0027] Specifically, after the top plate 204 slides upward along the groove 205, a space for the copper lug 6 to be inserted is formed between the bottom plate 203 and the top plate 204. The bottom plate 203 and the top plate 204 contact the bottom surface and the top surface of the copper lug 6, respectively. The arc angle setting facilitates the upward movement of the top plate 204 and its separation from the bottom plate 203, thereby facilitating the insertion of the end of the copper lug 6.

[0028] Elastic sheets 206 are symmetrically provided between the top surface of the top plate 204 and the top surface of the insertion groove 201, and the bending directions of the elastic sheets 206 on both sides are opposite.

[0029] Specifically, when the copper nose 6 is inserted between the top plate 204 and the bottom plate 203, the top plate 204 will move upward, causing the elastic plates 206 on both sides to bend in opposite directions. The elastic plates 206 always provide a downward counterforce to the top plate 204, so that the top plate 204 and the bottom plate 203 are in close contact with the copper nose 6.

[0030] A limiting mechanism 3 is provided in the bottom groove 202. The limiting mechanism 3 includes a guide groove 301, which is opened on the bottom surface of the insertion groove 201 and passes through the bottom plate 203. A guide post 302 slides through the bottom of the guide groove 301. A limiting post 303 is provided at the top of the guide post 302. The limiting post 303 slides with the guide groove 301. A limiting spring 304 is sleeved on one end of the guide post 302 located in the guide groove 301. A groove seat 305 is hinged to one end of the guide post 302 located in the bottom groove 202. A handle is provided at one end of the groove seat 305.

[0031] Specifically, such as Figure 4 and Figure 5 As shown, by turning the handle, the end of the slot seat 305 is rotated downwards. The end of the slot seat 305 away from the handle gradually rotates from horizontal to vertical and always remains in contact with the top surface of the bottom groove 202. At the same time, the slot seat 305 drives the guide post 302 to slide downwards. When the slot seat 305 is fully rotated to the vertical position, the end of the slot seat 305 is in vertical contact with the top surface of the bottom groove 202. At the same time, the downward movement of the guide post 302 causes the limiting post 303 to fully retract into the guide groove 301, and the limiting spring 304 is compressed. At this time, the contact between the end of the slot seat 305 and the top surface of the bottom groove 202 realizes the self-locking position of the limiting post 303. This state is the initial state before connecting with the copper lug 6.

[0032] When the slot seat 305 is moved to a horizontal position by the handle, the self-locking effect of the slot seat 305 disappears, the limit spring 304 extends and resets, and at the same time drives the limit post 303 to extend out of the guide groove 301 and insert into the corresponding insertion hole on the copper nose 6, thereby realizing the axial positioning of the copper nose 6 and the connection positioning between the copper nose 6 and the insertion end 2.

[0033] In this embodiment, the connection and conduction of the cables on both sides are achieved through the plug-in end 101 and the plug-in end 2 respectively provided at both ends of the insulating shell 1. The busbar 102 passing through the insulating shell 1 is electrically connected to the plug-in end 101 and the base plate 203 respectively. After the copper lug 6 with cable is plugged and fixed with the plug-in end 2 and the plug-in end 101 is plugged with the corresponding bypass cable port, the stable power transmission of the cables on both sides can be achieved through the busbar 102.

[0034] Before the copper lug 6 is inserted, the handle at the end of the slot seat 305 is turned downwards to rotate the slot seat 305 downwards, so that the end of the slot seat 305 away from the handle rotates from a horizontal state to a vertical state. During the rotation of the slot seat 305, the guide post 302 is continuously driven to slide downwards along the guide groove 301, which in turn drives the limiting post 303 to move downwards synchronously and retract completely into the guide groove 301. At the same time, the limiting spring 304 is compressed and is in an energy storage state.

[0035] When the slot 305 is fully rotated to the vertical position, the end of the slot 305 abuts vertically against the top surface of the bottom slot 202, realizing the self-locking position of the guide post 302 and the limiting post 303. At this time, there is no protruding structure in the insertion slot 201, providing a smooth and unobstructed insertion space for the copper lug 6.

[0036] When the copper lug 6 is inserted into the insertion slot 201, the end of the copper lug 6 is inserted into the gap between the bottom plate 203 and the top plate 204 from the arc angle between the bottom plate 203 and the top plate 204. The insertion of the copper lug 6 simultaneously pushes the top plate 204 to slide upward along the slide groove 205, so that an insertion space adapted to the thickness of the copper lug 6 is formed between the top plate 204 and the bottom plate 203.

[0037] As the top plate 204 slides upward, it causes the two elastic sheets 206 to bend and deform in opposite directions. The deformed elastic sheets 206 continuously provide the top plate 204 with a downward reverse elastic force, so that the lower surface of the top plate 204 is in close contact with the top surface of the copper nose 6, while the upper surface of the bottom plate 203 is in close contact with the bottom surface of the copper nose 6, thereby achieving a low-impedance stable electrical connection between the copper nose 6 and the busbar 102.

[0038] When the copper lug 6 is fully inserted into the insertion slot 201 and the connection hole on the copper lug 6 corresponds to the position of the limiting post 303, the handle is turned in the opposite direction to drive the slot seat 305 to rotate to a horizontal state. The self-locking effect of the slot seat 305 disappears, the compressed limiting spring 304 extends and resets, and synchronously drives the limiting post 303 to slide out along the guide slot 301, so that the limiting post 303 is inserted into the connection hole of the copper lug 6. This achieves axial limiting and fixing of the copper lug 6, and completes the mechanical positioning and locking of the copper lug 6 and the insertion end 2. When removing the copper lug 6, the slot seat 305 is rotated to a vertical state so that the limiting post 303 is retracted into the guide slot 301 and can be removed. After removal, the bottom plate 203 and the top plate 204 return to the closed state under the action of the elastic sheet 206.

[0039] However, when impurities and particulate matter adhere to the opposing surfaces of the top plate 204 and the bottom plate 203, a gap will form between the surface of the copper lug 6 and the top plate 204 or the bottom plate 203. This will prevent the copper lug 6 from making contact with the contact surface of the top plate 204 or the bottom plate 203, affecting the stability of the cable's power transmission. Therefore: It also includes an auxiliary mechanism 4, which is located above the top plate 204. The auxiliary mechanism 4 includes an air nozzle 402 and a telescopic bladder 401 that supplies air to the air nozzle 402. The air nozzle 402 is uniformly embedded in the inner end surface of the top plate 204. The telescopic bladder 401 is located between the top surface of the insertion groove 201 and the top plate 204. The telescopic bladder 401 is located between the elastic sheets 206 on both sides. Each air nozzle 402 is connected to the other through a connecting pipe 403. The connecting pipe 403 is connected to the telescopic bladder 401 through an air guide pipe 404.

[0040] Specifically, when the top plate 204 is squeezed and moves upward, the telescopic bladder 401 is compressed simultaneously. The airflow generated by the compression of the telescopic bladder 401 is supplied to the air nozzle 402 through the air guide pipe 404 and the connecting pipe 403. The airflow is sprayed through the air nozzle 402 into the space between the top plate 204 and the bottom plate 203 to clean the contact surfaces of the top plate 204 and the bottom plate 203 with the copper nose 6, preventing impurities and particles from affecting the contact between the copper nose 6 and the top plate 204 and the bottom plate 203.

[0041] It also includes a cylinder seat 405, which is located in the middle of the elastic plates 206 on both sides. The cylinder seat 405 on both sides is slidably fitted with a slide rod 406 at the end away from the telescopic bladder 401. The cylinder seat 405 is connected to the telescopic bladder 401 through a connecting pipe 407. Both the air guide pipe 404 and the connecting pipe 407 are equipped with control valves.

[0042] Specifically, the control valves on the air duct 404 and the connecting pipe 407 are used to control the opening and closing of the air duct 404 and the connecting pipe 407. Initially, they are both in the open state. The control valves can be selected as manual control valves or electric control valves according to actual needs. If an electric control valve is selected, a battery pack and a control switch need to be installed on the plug-in terminal 2.

[0043] In use, before the copper nose 6 is inserted, the top plate 204 and the bottom plate 203 are in a closed state, opening the control valve on the air guide pipe 404 and closing the control valve on the connecting pipe 407. By turning the handle forward and backward, the slot seat 305 is repeatedly switched between horizontal and vertical states, thereby realizing the reciprocating extension and retraction of the limiting post 303. Alternatively, when the slot seat 305 is in a horizontal state, repeatedly pulling and releasing the slot seat 305 also realizes the reciprocating extension and retraction of the limiting post 303. The reciprocating extension and retraction of the limiting post 303 drives the top plate 204 to reciprocate along the slide groove 205. When the top plate 204 moves away from the bottom plate 203, it compresses the top telescopic bladder 401. After being compressed, the telescopic bladder 401 generates a high-pressure airflow inside, which is transported to the connecting pipe 407 through the air guide pipe. The airflow is then distributed to each nozzle 402 via the connecting pipe 403. Finally, the airflow is sprayed downwards through the nozzles 402 into the insertion space between the top plate 204 and the bottom plate 203. When the top plate 204 closes to the bottom plate 203 under the action of the elastic sheet 206, the telescopic bladder 401 is stretched and reset, and gas is replenished through the nozzles 402. This process is repeated to clean the impurities and particles between the bottom plate 203 and the top plate 204. During the airflow spraying process, the relative surfaces of the top plate 204 and the bottom plate 203 can be swept and cleaned to remove the impurities and particles attached to the contact surfaces of the top plate 204 and the bottom plate 203. This prevents the impurities and particles from affecting the surface contact effect between the copper lug 6 and the bottom plate 203 and the top plate 204, and ensures the stability and safety of the electrical connection.

[0044] After cleaning, the copper lug 6 can be inserted. During insertion, close the control valve on the air guide tube 404 and open the control valve on the connecting tube 407. The telescopic bladder 401 is compressed normally. The airflow generated at this time enters the cylinder seats 405 on both sides through the connecting tube 407 and pushes the slide rods 406 on both sides to extend in opposite directions, so that the outer end of the slide rod 406 abuts against the inner wall of the insertion groove 201.

[0045] After the copper lug 6 is inserted, if the copper lug 6 is unexpectedly subjected to a high external force directed towards the top plate 204, the telescopic bladder 401 is further compressed. At this time, the slide rod 406 tends to extend further. However, the thrust of the slide rod 406 is rebounded by the inner wall of the insertion groove 201 and acts on the elastic plate 206, providing a reverse support force to the elastic plate 206. This causes the middle parts of the elastic plates 206 on both sides to tend to close, thereby further squeezing the bottom end of the elastic plate 206 against the top plate 204, preventing the elastic plates 206 on both sides from bending further in opposite directions, preventing the top plate 204 from continuing to move upward, preventing the top plate 204 from being excessively pushed and causing the copper lug 6 to disengage from the limiting post 303. At the same time, it prevents the elastic plate 206 from fatigue damage due to excessive deformation, thus extending the service life of the joint.

[0046] Example 2 During use, relying solely on the insertion of the limiting post 303 into the connecting hole of the copper lug 6 for positioning is insufficient to achieve a reliable positioning effect. The copper lug 6 will still rotate around the limiting post 303, resulting in high-frequency relative rotation between the copper lug 6 and the top plate 204 and bottom plate 203. This accelerates the wear of the contact surfaces between the copper lug 6, the top plate 204, and the bottom plate 203. Furthermore, after prolonged use, oxide and corrosion layers will form on the relative surfaces of the bottom plate 203 and the top plate 204, severely affecting the effective contact area between the surface of the copper lug 6 and the surfaces of the bottom plate 203 and the top plate 204, thereby affecting the normal transmission of electrical energy. Therefore, the following improvements are made: Please see Figures 7-9 It also includes a cleaning mechanism 5, which is located between the bottom plate 203 and the top plate 204. The cleaning mechanism 5 includes a guide groove 501, which is opened on the inner wall of the insertion groove 201. A guide rod 502 is provided in the guide groove 501. A slide block 503 is movably sleeved on the guide rod 502. The slide block 503 is slidably connected to the guide groove 501. A scraper 504 is provided on the slide block 503. A through groove is opened in the middle of the scraper 504. A return spring 505 is sleeved on the guide rod 502.

[0047] The inner side of the scraper seat 504 has inclined surfaces at both the upper and lower ends, and the inclined surfaces on the upper and lower sides respectively match the arc angles at the ends of the top plate 204 and the bottom plate 203.

[0048] Specifically, with the top plate 204 and bottom plate 203 closed, the scraper seat 504 is located at the ends of the top plate 204 and bottom plate 203, and the inclined surfaces at both ends of the scraper seat 504 are in contact with the arc angles at the ends of the top plate 204 and bottom plate 203. The width of the scraper seat 504 is the same as the thickness of the copper nose 6. During the insertion of the copper nose 6, it will first abut against the side of the scraper seat 504 and push the scraper seat 504 to slide into the space between the top plate 204 and bottom plate 203. The top plate 204 moves away from the bottom plate 203, and the return spring 505 is compressed. After the copper nose 6 is inserted and limited by the limiting mechanism 3, the reverse force of the return spring 505 makes the scraper seat 504 tightly abut against the end of the copper nose 6, so that the connecting hole on the copper nose 6 is tightly engaged with the limiting post 303, thereby improving the positioning effect of the copper nose 6.

[0049] Before the copper lug 6 is inserted, the scraper seat 504 is pushed into the insertion slot 201. When the scraper seat 504 moves, its upper and lower surfaces are always in contact with the relative surfaces of the top plate 204 and the bottom plate 203, thereby scraping and cleaning the impurities and oxide layers attached to the relative surfaces of the top plate 204 and the bottom plate 203. The airflow generated by the compression of the telescopic bladder 401 by the top plate 204 is ejected through the air nozzle 402 to clean the scraped debris. The debris is discharged through the channel.

[0050] In use, when the top plate 204 and the bottom plate 203 are in the initial closed state, the scraper seat 504 is attached to the end position of the top plate 204 and the bottom plate 203. The inclined surfaces at the upper and lower ends of the scraper seat 504 are in contact with the arc angles at the ends of the top plate 204 and the bottom plate 203, and the width of the scraper seat 504 is the same as the thickness of the copper nose 6. At this time, the slide seat 503 is located at the outer end of the guide groove 501 under the action of the return spring 505, and the scraper seat 504 maintains the initial positioning state.

[0051] During the insertion of the copper lug 6 into the insertion slot 201, the end of the copper lug 6 first abuts against the outer end face of the scraper seat 504. As the copper lug 6 is continuously pushed in, the end of the copper lug 6 pushes the scraper seat 504 to slide into the insertion space between the top plate 204 and the bottom plate 203. The scraper seat 504 drives the slide seat 503 to slide synchronously along the guide rod 502. The return spring 505 is compressed and deformed. At the same time, the copper lug 6 pushes the top plate 204 to move upward along the slide groove 205, so that an insertion gap matching the copper lug 6 is formed between the top plate 204 and the bottom plate 203. During this process, the control valve on the air duct 404 and the control valve on the connecting pipe 407 are in the closed and open states, respectively, and the telescopic bladder 401 is normally compressed, and the slide rod 406 is normally pushed out.

[0052] When the copper lug 6 is fully inserted into the insertion slot 201, and the connecting hole on the copper lug 6 is inserted and positioned with the limiting post 303, the reverse elastic force of the return spring 505 pushes the scraper seat 504 to tightly abut against the end of the copper lug 6. The abutting force of the scraper seat 504 makes the connecting hole on the copper lug 6 and the limiting post 303 fit tightly, restricting the rotation of the copper lug 6 around the limiting post 303, avoiding wear on the contact surface caused by relative rotation between the copper lug 6 and the top plate 204 and the bottom plate 203, improving the positioning reliability of the copper lug 6. After the limiting mechanism 3 releases the limiting of the copper lug 6, the rapid extension of the return spring 505 makes the copper lug 6 quickly and actively ejected.

[0053] Before the copper nose 6 is inserted, if a gap is observed between the top plate 204 and the bottom plate 203, it is determined that there are impurity particles in the gap. As in Example 1, the control valves on the air guide pipe 404 and the connecting pipe 407 are still in the open and closed states respectively. The slot seat 305 is repeatedly switched between horizontal and vertical states by moving the handle in both directions, driving the limit post 303 to reciprocate and extend, and driving the top plate 204 to move up and down along the slide groove 205. When the top plate 204 moves upward, it compresses the telescopic bladder 401. The high-pressure airflow generated in the telescopic bladder 401 is delivered to each air nozzle 402 through the air guide pipe 404 and the connecting pipe 403, and is sprayed downward from the air nozzle 402 into the insertion space between the top plate 204 and the bottom plate 203, thus pre-purifying the impurity particles. The impurity particles are discharged through the through groove in the middle of the scraper seat 504, realizing the physical purging of the contact surface.

[0054] Before inserting the copper lug 6, if it is observed that there is an oxide layer, corrosion layer or adhesive residue on the relative surfaces of the top plate 204 and the bottom plate 203, the scraper 504 is manually pushed along the insertion groove 201 by a tool that matches the scraper 504. During the sliding process, the scraper 504 is always in contact with the lower surface of the top plate 204 and the upper surface of the bottom plate 203. The scraping action of the scraper 504 directly removes the oxide layer, corrosion layer and tightly adhered adhesive residue on the relative surfaces of the top plate 204 and the bottom plate 203, thus achieving physical cleaning of the contact surfaces of the top plate 204 and the bottom plate 203. After cleaning, the scraper 504 is returned to the initial position, and the above-mentioned operation of reciprocating extension and retraction of the drive limit post 303 is repeated. The airflow sprayed from the air nozzle 402 is used to discharge the cleaned debris.

[0055] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A quick-connect type bypass uninterruptible power supply cable intermediate joint, comprising an insulating shell (1), characterized in that, One end of the insulating housing (1) is provided with a plug-in end (2), and a busbar (102) is inserted inside the insulating housing (1). The end of the busbar (102) near the plug-in end (2) is provided with a contact plate (103). The end face of the plug-in end (2) is provided with a plug-in groove (201), the bottom of the plug-in end (2) is provided with a bottom groove (202), and the bottom surface of the plug-in groove (201) is covered with a bottom plate (203). The internal space of the insertion slot (201) is provided with a top plate (204); Elastic sheets (206) are symmetrically provided between the top surface of the top plate (204) and the top surface of the insertion groove (201), and the bending directions of the elastic sheets (206) on both sides are opposite. The bottom groove (202) is provided with a limiting mechanism (3); The limiting mechanism (3) includes a guide groove (301), which is opened on the bottom surface of the insertion groove (201). A guide post (302) slides through the bottom of the guide groove (301), and a limiting post (303) is provided on the top of the guide post (302). It also includes an auxiliary mechanism (4), which is located above the top plate (204). The auxiliary mechanism (4) includes an air nozzle (402) and a telescopic bladder (401) that supplies air to the air nozzle (402). The air nozzle (402) is uniformly embedded in the inner end surface of the top plate (204).

2. The quick-connect type bypass uninterruptible power supply cable intermediate joint according to claim 1, characterized in that: The other end of the insulating housing (1) is provided with a plug-in end (101), the busbar (102) is electrically connected to the plug-in end (101), and one end of the base plate (203) is electrically connected to the busbar (102).

3. The quick-connect type bypass uninterruptible power supply cable intermediate joint according to claim 1, characterized in that: The top plate (204) is located above the bottom plate (203). The end of the top plate (204) is slidably connected to the groove (205) opened on the touch plate (103). The ends of the bottom plate (203) and the top plate (204) are provided with arc angles on opposite sides.

4. The quick-connect type bypass uninterruptible power supply cable intermediate joint according to claim 1, characterized in that: The guide groove (301) penetrates the bottom plate (203), the limiting post (303) slides with the guide groove (301), the end of the guide post (302) located in the guide groove (301) is fitted with a limiting spring (304), the end of the guide post (302) located in the bottom groove (202) is provided with a hinged slot seat (305), and the end of the slot seat (305) is provided with a handle.

5. The quick-connect type bypass uninterruptible power supply cable intermediate joint according to claim 1, characterized in that: The telescopic bladder (401) is located between the top surface of the insertion slot (201) and the top plate (204), and the telescopic bladder (401) is located between the elastic sheets (206) on both sides; Each air nozzle (402) is connected to the other via a connecting pipe (403), and the connecting pipe (403) is connected to the telescopic bladder (401) via an air guide pipe (404).

6. The quick-connect type bypass uninterruptible power supply cable intermediate joint according to claim 5, characterized in that: It also includes a cylinder seat (405), which is located in the middle of the elastic plates (206) on both sides. The cylinder seat (405) on both sides is slidably fitted with a slide rod (406) at the end away from the telescopic bladder (401). The cylinder seat (405) is connected to the telescopic bladder (401) through a connecting pipe (407). Both the air guide pipe (404) and the connecting pipe (407) are equipped with control valves.

7. The quick-connect type bypass uninterruptible power supply cable intermediate joint according to claim 1, characterized in that: It also includes a cleaning mechanism (5), which is located between the bottom plate (203) and the top plate (204). The cleaning mechanism (5) includes a guide groove (501), which is opened on the inner wall of the insertion groove (201). A guide rod (502) is provided in the guide groove (501). A slide (503) is movably sleeved on the guide rod (502). A scraper (504) is provided on the slide (503). A return spring (505) is sleeved on the guide rod (502).

8. The quick-connect type bypass uninterruptible power supply cable intermediate joint according to claim 7, characterized in that: The slide block (503) is slidably connected to the guide groove (501). The scraper block (504) has a through groove in the middle. The upper and lower ends of the inner side of the scraper block (504) are provided with inclined surfaces. The inclined surfaces on the upper and lower sides respectively cooperate with the arc angles of the ends of the top plate (204) and the bottom plate (203).

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