Power grid cable connection auxiliary device

Abstract

The invention discloses a power grid cable connection auxiliary device which comprises an insulating shell, a connector is slidably connected to the top of the insulating shell, a fixing frame is fixedly connected to the top of the connector, a fixing ring is fixedly connected to the top of the fixing frame, a conductive base is fixedly connected to the interior of the insulating shell, and a sliding cylinder is fixedly connected to the front face of the conductive base. A gas guide rod is fixedly connected to the front face of the conductive seat, a conductive tube is fixedly connected to the interior of the sliding cylinder, a buffer head is slidably connected to the interior of the conductive tube, the top of the insulating shell communicates with a flow divider, a rod-shaped gas valve is slidably connected to the front face of the flow divider, and a gas valve connecting block is fixedly connected to the front face of the rod-shaped gas valve. According to the device, by means of the poor contact separating mechanism and the conductive effect maintaining mechanism, loosening of the cable connecting position is relieved, the loosened cable is automatically pushed away when contact is poor, and the safety of a line is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid equipment, and in particular to a power grid cable connection auxiliary device. Background Art

[0002] The power grid is a whole composed of substations and transmission and distribution lines of various voltages in the power system. It includes three units: substation, transmission and distribution. Its main tasks are to transmit and distribute electric energy and change voltage. Urban underground power grid refers to a power grid system in which the power transmission lines of the power grid are laid underground in the city through power tunnels. Various large-scale equipment or construction activities on the surface and underground of the city will have an impact on the transmission lines, especially the connection status between two transmission cables. If an abnormal situation of poor contact occurs, it will seriously affect the city's power supply and safety. Summary of the invention

[0003] The object of the present invention is to provide a power grid cable connection auxiliary device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary device for connecting power grid cables, comprising an insulating shell, the insulating shell is made of a polymer, a connector is slidably connected to the top of the insulating shell, the connector is made of a polymer, a fixing frame is fixedly connected to the top of the connector, the fixing frame is made of metal, a bracket ring is fixedly connected to the top of the fixing frame, the cross section of the bracket ring is a circular ring, the bracket ring is made of a polymer, a conductive seat is fixedly connected to the inside of the insulating shell, the conductive seat is made of metal, a slide cylinder is fixedly connected to the front of the conductive seat, the slide cylinder is made of metal, a gas guide rod is fixedly connected to the front of the conductive seat, a conductive tube is fixedly connected to the inside of the slide cylinder, a buffer head is slidably connected to the inside of the conductive tube, a diverter is connected to the top of the insulating shell, a rod-shaped gas valve is slidably connected to the front of the diverter, the cross section of the rod-shaped gas valve is circular, the rod-shaped gas valve is made of metal, a gas valve connecting block is fixedly connected to the front of the rod-shaped gas valve, and the surface of the gas valve connecting block is fixedly connected to the inside of the bracket ring, an overall solution of the device is provided, and the maintenance of the conductive effect when loose and the rapid insulation separation when the contact is poor are achieved.

[0005] Preferably, the top of the insulating shell is fixedly connected to a shell top, the shell top material is a polymer, the bottom of the insulating shell is fixedly connected to a support, the bottom of the support is fixedly connected to an H-shaped chassis, the cross-sections of the top and bottom of the H-shaped chassis are H-shaped, the front of the H-shaped chassis is fixedly connected to a wheel plate, one side of the wheel plate is rotatably connected to a rubber roller, the surface of the rubber roller is covered with rubber, the number of the wheel plates is eight, each two in a group, a total of four groups, each group is symmetrically distributed about the center plane of the two side surfaces of the rubber roller, two of the groups are located on the front of the H-shaped chassis, the two groups are symmetrically distributed about the center plane of the two side surfaces of the insulating shell, and the other two groups The rubber rollers are symmetrically distributed with respect to the center plane between the front and back sides of the insulating shell with respect to the aforementioned two groups. There are four rubber rollers, two of which are in a group. Two of the rubber rollers are located on the front side of the H-shaped chassis. The two groups are symmetrically distributed with respect to the center planes of the two side surfaces of the insulating shell. The other two groups are symmetrically distributed with respect to the center plane between the front and back sides of the insulating shell with respect to the aforementioned two groups. A solution for the placement mechanism of the entire device is provided, which isolates the wires from the ground. The rubber wheels reduce the impact of vibration on the device by absorbing part of the vibration through the surface rubber. The position adaptation of the cable connection point is achieved through the rolling roller, which helps reduce the possibility of the connection falling off due to axial shaking and deformation.

[0006] Preferably, the interior of the insulating shell is a hollow structure, the top of the shell is connected with a circular through hole, the front of the insulating shell is fixedly connected to a shell edge, the number of the shell edges is two, and they are symmetrically distributed about the center plane between the front and back of the insulating shell, the front of the shell top is fixedly connected to a fixed slide rod, the material of the fixed slide rod is metal, the number of the fixed slide rods is four, two in a group, one group is located on the front of the shell top, and they are symmetrically distributed about the center plane of the two side surfaces of the insulating shell, and the other group is located on the back of the shell top, and they are symmetrically distributed about the center plane of the two side surfaces of the insulating shell, thereby providing a connection scheme for the main structure within the connecting mechanism of the device.

[0007] Preferably, a retaining ring is fixedly connected inside the connector, and the retaining ring is made of polymer. A fixing ring is fixedly connected inside the connector, and a rubber ring bayonet is fixedly connected inside the connector, and the rubber ring bayonet is made of polymer. A retaining spring retaining ring is fixedly connected to the front of the connector. A circular through hole is fixedly connected to the front of the connector, and the number of the circular through holes is two. The central axis of the circular through hole coincides with the central axis of the fixed slide rod, and the diameter of the circular through hole is consistent with the cross-sectional circular diameter of the fixed slide rod. The connector is slidably connected to the surface of the fixed slide rod through the circular through hole, and the front side of the retaining ring is fixedly connected to the back side of the shell edge by a spring. The number of the connector, retaining ring, fixing ring, rubber ring bayonet, and retaining spring retaining ring are all two, and the center plane between the front and back sides of the insulating shell is symmetrically distributed. A structural scheme of the connecting mechanism of the device and a connection scheme between the connecting mechanism and the insulating shell are provided, which is beneficial to reduce the loosening amplitude by absorbing energy when the cable connection may become loose.

[0008] Preferably, a circular through hole is fixedly connected to the front side of the bracket ring, a front support is fixedly connected to the front side of the fixing frame, the front support is made of metal, the bottom of the front support is fixedly connected to the connector, and a side support is fixedly connected to one side of the fixing frame, the side support is made of metal, the number of the fixing frame, the bracket ring and the front support are two, and they are symmetrically distributed about the center plane between the front and back sides of the insulating shell, the number of the side supports is four, two in a group, the two groups are symmetrically distributed about the center plane between the front and back sides of the insulating shell, and each group is symmetrically distributed about the center plane of the two side surfaces of the fixing frame, and the bottom of the side support is fixedly connected to the connector, providing a structural scheme of the fixing frame, which is conducive to the linkage cooperation between the connecting mechanism and the quick disconnection mechanism.

[0009] Preferably, the top of the conductive seat is connected with a circular blind hole, and the top of the conductive seat is connected with the through hole on the top of the shell through the circular blind hole. The front of the gas guide rod is connected with a circular through hole, and the circular through hole of the gas guide rod is connected with the circular blind hole of the conductive seat. The front of the gas guide rod is fixedly connected with a rubber pad, and the back of the buffer head is fixedly connected with a buffer baffle, and the buffer baffle is made of metal. The surface of the buffer baffle is slidably connected to the inside of the slide cylinder, and the back of the buffer baffle is fixedly connected with a sliding guide rod, and the sliding guide rod is made of metal. The buffer head, the buffer baffle, and the sliding guide rod are connected with circular through holes on the front. The guide rod is slidably connected to the surface of the air guide rod through a through hole, the back of the buffer baffle is fixedly connected to the front of the conductive seat by a spring, the number of the slide cylinder, the conductive tube, the air guide rod, the rubber pad, the buffer head, the buffer baffle, and the sliding guide rod are two each, and are symmetrically distributed about the center plane between the front and back of the insulating shell, providing a supplementary solution for the conductive effect maintaining mechanism and the quick release mechanism in the overall solution, reducing the adverse effects of cable loosening on the conductive effect by setting a buffer zone, and improving the safety of the line when an accident occurs through the linkage cooperation of the conductive effect maintaining mechanism and the quick release mechanism, thereby protecting the entire line.

[0010] Preferably, a rubber ring hook is fixedly connected to the inside of the rubber ring bayonet, a rubber ring is fixedly connected to the front of the rubber ring hook, the rubber ring and the rubber ring hook are made of silicone, a retaining spring is fixedly connected to the top of the rubber ring, the retaining spring is an open circular ring, a connecting piece is fixedly connected to the top of the retaining spring, a sleeve is fixedly connected to one side of the connecting piece, the inside of the sleeve is slidably connected to the surface of the fixed slide rod, the number of the connecting piece and the sleeve are both two, and they are symmetrically distributed about the center plane of the two side surfaces of the insulating shell, the number of the rubber ring, the rubber ring hook, the retaining spring and the connecting piece are both two, and they are symmetrically distributed about the center plane between the front and back sides of the insulating shell, a structural scheme for the connection mechanism between the device and the cable is provided, the cable is fixed by means of elastic materials and fasteners, the cable connection is isolated from the external environment, the adverse effects of adverse factors in the external environment on the cable connection and the cable connector itself are reduced, and the connection reliability is improved.

[0011] Preferably, the top of the connector is fixedly connected to a gas cylinder rack, the top of the gas cylinder rack is fixedly connected to a high-pressure gas cylinder, the high-pressure gas cylinder stores high-pressure nitrogen, the top of the high-pressure gas cylinder is fixedly connected to a plug, the top of the plug is fixedly connected to a right-angle joint, the back of the right-angle joint is connected to a high-pressure hose, the other end of the high-pressure hose is connected to a flange, the bottom of the flange is connected to the top of the diverter, the diverter is made of metal, the bottom of the diverter is connected to a circular blind hole, the bottom of the diverter is connected to the circular through hole on the top of the shell through the circular blind hole, the top of the circular blind hole of the diverter is connected to a lower air chamber, the top of the lower air chamber is connected to a diversion pipe, the top of the diversion pipe is connected to an upper air chamber, the top of the upper air chamber is connected to the flange, A circular blind hole is connected to the front of the diverter, which is connected to the rubber layer. The diverter is slidably connected to the rod-shaped air valve through the circular blind hole on the front. An air valve sealing nozzle is fixedly connected to the front of the diverter. The central axis of the air valve sealing nozzle coincides with the central axis of the circular blind hole on the front of the diverter. The inner diameter of the air valve sealing nozzle is consistent with the circular blind hole on the front of the diverter. There are two diverter pipes and air valve sealing nozzles. They are symmetrically distributed on the center planes of the front and back surfaces of the insulating shell, and a supplementary solution for the quick disengagement mechanism of the device is provided. Insulating high-pressure gas is used to push away cables in a poor contact state to prevent other adverse conditions caused by poor contact. At the same time, it can also blow out arcs and cool down to prevent arcs and high temperatures from affecting other nearby cables and equipment.

[0012] Preferably, a rubber layer is fixedly connected to the surface of the rod-shaped air valve, a circular through hole is fixedly connected to the bottom of the rod-shaped air valve, a circular through hole is fixedly connected to the bottom of the rubber layer, the position of the circular through hole is consistent with the position of the circular blind hole at the bottom of the rod-shaped air valve, and a limiting slider is slidably connected inside the circular blind hole at the bottom of the rod-shaped air valve. The number of the rubber layer, the rod-shaped air valve, the air valve connecting block, and the limiting slider are all two, which are symmetrically distributed about the center plane between the front and back sides of the insulating shell, and a structural scheme for the connection mechanism between the quick separation mechanism and the conductive effect maintaining mechanism is provided.

[0013] Preferably, a power transmission cable is fixedly connected inside the conductive seat, the power transmission cable includes an insulating layer, the power transmission cable is fixedly connected to a rubber ring through the insulating layer, a wire core is fixedly connected inside the insulating layer, the insulating layer is flush with the front surface of the wire core, the length of the wire core is greater than the length of the insulating layer, and the back of the wire core is fixedly connected to the front of the buffer head, which provides a supplementary solution to the technical solution of the connection method between the cable and the device, and describes the coordination method between the cable connection and the device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The power grid cable connection auxiliary device clamps the cable through a rubber ring fastener, and cooperates with an insulating shell to achieve insulation sealing of the cable connection, reduce the wear of the device mechanism on the cable insulation layer and the impact of adverse factors in the underground surrounding environment on the cable connection, improve the connection reliability, and achieve the maintenance of the conductive effect when the cable connection is loose through the rubber ring fastener clamping mechanism and the connector mechanism, further improve the connection reliability, and delay the occurrence cycle of abnormal situations; The power grid cable connection auxiliary device uses a spring-connected connector mechanism to reduce the cable loosening amplitude through spring tension when the cable loosens, and uses a buffer contact device to apply pressure to the spring of the buffer contact device when the cable is connected. When the cable connection is loose, the spring pressure is released to drive the buffer plate to contact the cable connection, thereby maintaining the conductive effect. The connector mechanism cooperates with the buffer contact device to reduce the possibility of poor contact. At the same time, the connector and the insulating shell work together to reduce the damage to the cable connection caused by adverse external factors, thereby maintaining the service life of the cable. The utility model discloses a power grid cable connection auxiliary device, which utilizes a poor contact disengagement mechanism driven by high-voltage insulating gas to release high-voltage insulating gas to quickly push away the loose cable connector when a poor contact abnormality occurs, thereby preventing the occurrence of a poor contact condition. At the same time, the high-voltage insulating gas isolates the cable connector from the conductive mechanism and blows out possible arcs, reducing the heat on the surface of the cable connector, thereby preventing these adverse factors from affecting nearby cables or other equipment. The utility model discloses a power grid cable connection auxiliary device, which utilizes the linkage between the connector and the poor contact disengagement mechanism, realizes the judgment of the possible poor contact working condition by the poor contact disengagement mechanism, and releases the high-voltage insulating gas when the buffer range of the connector is about to reach the limit, realizes the seamless connection from the conductive effect to the poor contact disengagement process, and improves the reliability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the external structure of the connector of the present invention; Figure 4 It is a schematic diagram of the overall structure of the fixing frame of the present invention; Figure 5 It is a schematic diagram of the internal cross-sectional structure of the connector of the present invention; Figure 6 This is a schematic diagram of the positional relationship between the insulating shell and the rubber ring of the present invention; Figure 7 This is a schematic diagram of the positional relationship between the insulating shell and the fixed sliding rod of the present invention; Figure 8 This is the intention of the positional relationship between the rod-shaped gas valve and the fixing frame of the present invention; Fig. 9 It is a schematic diagram of the internal structure of the diverter of the present invention; Fig.10 It is a schematic diagram of the position relationship of the rod-shaped air valve limit slider of the present invention; Fig.11 A schematic diagram of the position relationship of the internal mechanism of the conductive base of the present invention; Fig.12 It is a schematic diagram of the structure of the gas guide rod of the present invention.

[0016] In the figure: 100, insulating shell; 101, shell top; 102, shell edge; 103, support; 104, H-shaped chassis; 105, wheel plate; 106, rubber roller; 107, fixed slide bar; 110, connector; 111, retaining ring; 112, fixing ring; 113, rubber ring bayonet; 114, retaining ring; 120, fixing frame; 121, bracket ring; 122, front support; 123, side support; 200, conductive seat; 201, slide cylinder; 202, conductive tube; 203, air guide rod; 204, rubber pad; 210, buffer head; 211, buffer baffle; 212, conductive tube; 213, conductive tube; 214, conductive tube; 215, conductive tube; 216, conductive tube; 217, conductive tube; 218, conductive tube; 219, conductive tube; 220, conductive tube; 221, conductive tube; 222, conductive tube; 223, conductive tube; 224, conductive tube; 225, conductive tube; 226, conductive tube; 227, conductive tube; 228, conductive tube; 229, conductive tube; 230, conductive tube; 231, conductive tube; 232, conductive tube; 233, conductive tube; 234, conductive tube; 235, conductive tube; 236, conductive tube; 237, conductive tube; 238, conductive tube; 239, conductive tube; 240, conductive tube; 241, conductive tube; 242, conductive tube; 243, conductive tube; 244, conductive tube; 245, conductive tube; 246, conductive tube; 247, conductive tube; 248, conductive tube; 249, conductive tube; 25 2. Sliding guide rod; 220. Rubber ring; 221. Rubber ring hook; 230. Retaining spring; 231. Connecting piece; 232. Sleeve; 300. High-pressure gas tank; 301. Right-angle joint; 302. Plug; 303. High-pressure hose; 304. Gas tank rack; 310. Diverter; 311. Flange; 312. Upper gas chamber; 313. Diverter pipe; 314. Rubber layer; 315. Rod-shaped gas valve; 316. Gas valve connecting block; 317. Limiting slider; 318. Lower gas chamber; 319. Gas valve sealing mouth; 400. Transmission cable; 401. Insulation layer; 402. Wire core. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-12The present invention provides a technical solution: an auxiliary device for connecting power grid cables, comprising an insulating shell 100, which is used to isolate the cable connection from the external environment. The interior of the insulating shell 100 is a hollow structure. The material of the insulating shell 100 is a polymer. The top of the insulating shell 100 is fixedly connected with a shell top 101, which is used to install other mechanisms and limit the displacement range of a connector 110. The shell top 101 is made of a polymer. The bottom of the insulating shell 100 is fixedly connected with a support 103. The bottom of the support 103 is fixedly connected with an H-shaped base frame 104, which is used to connect a rubber roller 106 to the upper part of the device. The cross-sections of the top and bottom of the H-shaped base frame 104 are H-shaped. The front of the H-shaped base frame 104 is fixedly connected with a wheel plate 105, which is used to connect the rubber roller 106. One side of the wheel plate 105 is rotatably connected with the rubber roller 106. The rubber roller The surface of 106 is covered with rubber for absorbing ground vibration and driving the whole device and the cable to move adaptively when subjected to axial force, so as to reduce the looseness of the cable. There are eight wheel plates 105, two of which form a group, for a total of four groups. Each group is symmetrically distributed about the center plane of the two side surfaces of the rubber roller 106, two of which are located on the front of the H-shaped chassis 104, and the two groups are symmetrically distributed about the center plane of the two side surfaces of the insulating shell 100, and the other two groups are symmetrically distributed with the aforementioned two groups about the center plane between the front and back of the insulating shell 100. There are four rubber rollers 106, two of which form a group, two of which are located on the front of the H-shaped chassis 104, and the two groups are symmetrically distributed with the aforementioned two groups about the center plane between the front and back of the insulating shell 100. A circular through hole is connected to the top of the shell top 101, and a shell edge 102 is fixedly connected to the front of the insulating shell 100 for limiting the displacement range of the connector 110. There are two shell edges 102, which are symmetrically distributed about the center plane between the front and back of the insulating shell 100. A fixed slide bar 107 is fixedly connected to the front of the shell top 101 for preventing the connector 110 from rotating along the axial direction and cooperating with the rubber ring 220 and the retaining spring 230 to fix the cable. The material of the fixed slide bar 107 is metal. There are four fixed slide bars 107, two in a group, one of which is located on the front of the shell top 101 and is symmetrically distributed about the center plane of the two side surfaces of the insulating shell 100, and the other group is located on the back of the shell top 101 and is symmetrically distributed about the center plane of the two side surfaces of the insulating shell 100; A connector 110 is slidably connected to the top of the insulating shell 100. The material of the connector 110 is a polymer and is used to connect the cable and the conductive seat 200. When the cable connection may become loose, the spring is used to buffer the looseness of the cable, and when a poor contact situation is about to occur, a poor contact disengagement mechanism is linked to prevent the poor contact situation from occurring. A retaining ring 111 is fixedly connected inside the connector 110 to cooperate with the shell edge 102 to limit the displacement of the connector 110. The material of the retaining ring 111 is a polymer. A fixing ring 112 is fixedly connected inside the connector 110 to cooperate with the rubber ring 220 to stabilize the cable. A rubber ring bayonet 113 is fixedly connected inside the connector 110 to fix the rubber ring 220. The material of the rubber ring bayonet 113 is a polymer. A retaining ring 114 is fixedly connected to the front of 110 for limiting the position of the retaining ring 230. A rectangular through hole is fixedly connected to the top of the retaining ring 114. A circular through hole is fixedly connected to the front of the connector 110. There are two circular through holes. The central axis of the circular through hole coincides with the central axis of the fixed slide bar 107. The diameter of the circular through hole is consistent with the cross-sectional diameter of the fixed slide bar 107. The connector 110 is slidably connected to the surface of the fixed slide bar 107 through the circular through hole. The front of the retaining ring 111 is fixedly connected to the back of the shell edge 102 through a spring. The number of the connector 110, retaining ring 111, fixed ring 112, rubber ring bayonet 113, and retaining ring 114 are all two, and they are symmetrically distributed about the center plane between the front and back of the insulating shell 100. The top of the connector 110 is fixedly connected with a fixing frame 120 for fixing a bracket ring 121. The fixing frame 120 is made of metal. The top of the fixing frame 120 is fixedly connected with a bracket ring 121 for linking the connector 110 with the rod-shaped gas valve 315. The bracket ring 121 has a circular cross section and is made of a polymer. A circular through hole is fixedly connected to the front of the bracket ring 121. The front of the fixing frame 120 is fixedly connected with a front support 122 for stabilizing the fixing frame 120. The front support 122 is made of metal. The bottom of the front support 122 is fixed to the connector 110. The fixing frame 120 is connected to a side support 123 fixedly connected to one side of the fixing frame 120 to stabilize the fixing frame 120. The material of the side support 123 is metal. The number of the fixing frame 120, the bracket ring 121, and the front support 122 are two each, and they are symmetrically distributed about the center plane between the front and back sides of the insulating shell 100. The number of the side supports 123 is four, two in a group, and the two groups are symmetrically distributed about the center plane between the front and back sides of the insulating shell 100. Each group is symmetrically distributed about the center plane of the two side surfaces of the fixing frame 120. The bottom of the side support 123 is fixedly connected to the connector 110; A conductive seat 200 is fixedly connected inside the insulating shell 100 for conducting two cables. The conductive seat 200 is made of metal. A circular blind hole is connected to the top of the conductive seat 200. The top of the conductive seat 200 is connected to the through hole at the top of the shell top 101 through the circular blind hole. A slide cylinder 201 is fixedly connected to the front of the conductive seat 200 to provide space for the buffer head 210 to slide and cooperate with the conductive seat 200 to conduct current. The slide cylinder 201 is made of metal. A gas guide rod 203 is fixedly connected to the front of the conductive seat 200 for cooperating with the buffer head 210 to slide, conduct current and guide the release of high-voltage insulating gas. A conductive tube 202 is fixedly connected inside the slide cylinder 201 for directly contacting the joint at the cable connection. The buffer head 210 is slidably connected inside the conductive tube 202 for directly contacting the cable connection head and sliding forward under the action of a spring to maintain contact with the cable connection in the early stage of loosening of the cable connection. A circular through hole is connected to the front of the gas guide rod 203. The circular through hole of the gas guide rod 203 is connected to the circular blind hole of the conductive seat 200. The front of the air guide rod 203 is fixedly connected with a rubber pad 204 for reducing the wear of the bottom of the sliding guide rod 212 on the air guide rod 203. The back of the buffer head 210 is fixedly connected with a buffer baffle 211 for limiting the range of motion of the buffer head 210. The buffer baffle 211 is made of metal. The surface of the buffer baffle 211 is slidably connected to the inside of the slide cylinder 201. The back of the buffer baffle 211 is fixedly connected with a sliding guide rod 212 for assisting the buffer head 210 to slide. The sliding guide rod 212 is made of metal. , the buffer head 210, the buffer baffle 211, and the sliding guide rod 212 are connected with a circular through hole on the front side, the sliding guide rod 212 is slidably connected to the surface of the air guide rod 203 through the through hole, the back side of the buffer baffle 211 is fixedly connected to the front side of the conductive seat 200 through a spring, the number of the slide cylinder 201, the conductive tube 202, the air guide rod 203, the rubber pad 204, the buffer head 210, the buffer baffle 211, and the sliding guide rod 212 are all two, and they are symmetrically distributed about the center plane between the front and back sides of the insulating shell 100; A rubber ring hook ring 221 is fixedly connected inside the rubber ring bayonet 113, which is used to connect the rubber ring 220 and the connector 110. A rubber ring 220 is fixedly connected to the front of the rubber ring hook ring 221, which is used to seal the cable connector and provide buffering when the cable is displaced and deformed in directions other than the axial direction. The rubber ring 220 and the rubber ring hook ring 221 are made of silicone. A retaining spring 230 is fixedly connected to the top of the rubber ring 220, which is used to compress the rubber ring 220 and thus fix the connector 110 and the cable. The retaining spring 230 is an open ring, and a connecting piece 231 is fixedly connected to the top of the retaining spring 230, which is used to fix the sleeve 232, a sleeve 232 is fixedly connected to one side of the connecting piece 231, and the inside of the sleeve 232 is slidably connected to the surface of the fixed slide rod 107, and the connector 110 is cooperated to loosen the cable in time when the contact is poor, so as to cooperate with the poor contact disengagement mechanism to push the cable connector away, the number of the connecting piece 231 and the sleeve 232 are both two, and they are symmetrically distributed about the center plane of the two side surfaces of the insulating shell 100, the number of the rubber ring 220, the rubber ring hook 221, the retaining spring 230, and the connecting piece 231 are both two, and they are symmetrically distributed about the center plane between the front and back sides of the insulating shell 100; A gas tank rack 304 is fixedly connected to the top of the connector 110, and a high-pressure gas tank 300 is fixedly connected to the top of the gas tank rack 304 for storing high-pressure insulating gas. High-pressure nitrogen is stored inside the high-pressure gas tank 300. A plug 302 is fixedly connected to the top of the high-pressure gas tank 300 for supplementing insulating gas and preventing leakage after filling. A right-angle joint 301 is fixedly connected to the top of the plug 302. A high-pressure hose 303 is connected to the back of the right-angle joint 301 for transmitting high-pressure insulating gas. The other end of the high-pressure hose 303 is connected to a flange 311 for connecting the high-pressure hose 303 with the diverter 310. The bottom of the flange 311 is connected to the top of the diverter 310. The top of the insulating shell 100 is connected to the diverter The diverter 310 is used to control the release and release direction of the high-voltage insulating gas. The diverter 310 is made of metal. The bottom of the diverter 310 is connected with a circular blind hole. The bottom of the diverter 310 is connected with the circular through hole at the top of the shell top 101 through the circular blind hole. The top of the circular blind hole of the diverter 310 is connected with a lower air chamber 318 for connecting the diverter pipe 313 with the blind hole at the top of the conductive seat 200. The top of the lower air chamber 318 is connected with a diverter pipe 313 for draining the high-voltage insulating gas. The top of the diverter pipe 313 is connected with an upper air chamber 312 for connecting the diverter pipe 313 with the high-pressure gas tank 300. The top of the upper air chamber 312 is connected with the flange 311. The front of the diverter 310 is connected with a circular blind hole. The diverter 310 is slidably connected to the rod-shaped gas valve 315 through a circular blind hole on the front. The cross-section of the rod-shaped gas valve 315 is circular. The rod-shaped gas valve 315 is made of metal and is used to cooperate with the connector 110 to control the release of high-voltage insulating gas. A rubber layer 314 is fixedly connected to the surface of the rod-shaped gas valve 315 to improve air tightness. A circular through hole is fixedly connected to the bottom of the rod-shaped gas valve 315, and the circular blind hole is connected to the rubber layer 314. A gas valve connecting block 316 is fixedly connected to the front of the rod-shaped gas valve 315 to connect the rod-shaped gas valve 315 and the connector 110. A circular through hole is fixedly connected to the bottom of the rubber layer 314, and the position of the circular through hole is consistent with the position of the circular blind hole at the bottom of the rod-shaped gas valve 315. The circular blind hole at the bottom of the rod-shaped gas valve 315 is internally slidably connected to a limited The positioning slider 317 is used to limit the displacement range of the rod-shaped air valve 315. The number of the rubber layer 314, the rod-shaped air valve 315, the air valve connecting block 316, and the limiting slider 317 are two, and they are symmetrically distributed about the center plane between the front and back surfaces of the insulating shell 100. The surface of the air valve connecting block 316 is fixedly connected to the inside of the bracket ring 121. The front of the diverter 310 is fixedly connected with a valve sealing nozzle 319 for improving air tightness. The central axis of the air valve sealing nozzle 319 coincides with the central axis of the circular blind hole on the front of the diverter 310. The inner diameter of the air valve sealing nozzle 319 is consistent with the circular blind hole on the front of the diverter 310. The number of the diverter pipe 313 and the air valve sealing nozzle 319 is two, and they are symmetrically distributed about the center plane of the front and back surfaces of the insulating shell 100. A transmission cable 400 is fixedly connected inside the conductive seat 200. The transmission cable 400 is a mechanism for transmitting electric energy. The transmission cable 400 includes an insulating layer 401 for protecting a core 402. The transmission cable 400 is fixedly connected to the rubber ring 220 through the insulating layer 401. The core 402 is fixedly connected inside the insulating layer 401 for conducting electric energy. The insulating layer 401 is flush with the front surface of the core 402. The length of the core 402 is greater than the length of the insulating layer 401. The back of the core 402 is fixedly connected to the front of the buffer head 210.

[0019] Working principle: During installation, the connectors 110 at both ends are pulled outward, and the retaining ring 111 inside the connector 110 squeezes the spring until the sleeve 232 slides out from the surface of the fixed slide bar 107, the retaining spring 230 is loosened, and the two transmission cables 400 are pushed into the device from the front and back of the device respectively, and the inside of the sleeve 232 is aligned with the fixed slide bar 107, and the fixed slide bar 107 is inserted into the sleeve 232, and the connector 110 is loosened until the connector 110 is completely reset under the action of the spring, and the other end of the core 402 of the transmission cable 400 is aligned with the buffer The punch 210 is fitted, and the power transmission cable 400 is installed. At this time, nitrogen is added through the plug 302 until the filling is completed. After power is turned on, the current will flow from the power transmission cable 400 at one end through the conductive tube 202 to the slide 201, and then to the conductive seat 200, and then to the power transmission cable 400 at the other end. At the same time, the current will also be transmitted to the sliding guide rod 212 through the buffer head 210, and then to the gas guide rod 203 and then to the conductive seat 200, and then to the power transmission cable 400 at the other end, completing the current transmission; When the transmission cable 400 is loosened axially, the transmission cable 400 drives the wire core 402 to move axially toward both ends, and one end of the wire core 402 is away from the surface of the buffer head 210. The buffer head 210 slides in the moving direction of the wire core 402 under the action of the spring, and then contacts one end of the wire core 402 again, maintaining the contact area of ​​the cross section until the transmission cable 400 stops loosening or the loosening distance of the transmission cable 400 exceeds the sliding range of the buffer head 210. When the loosening occurs, the transmission cable 400 drives the rubber ring 220 to move axially, and then drives the connector 110 to move in the direction consistent with the movement direction of the transmission cable 400. The retaining ring 111 moves together with the connector 110 and squeezes the spring at the same time. If the power transmission cable 400 continues to loosen after moving beyond the sliding range of the buffer head 210, the wire core 402 will be transferred to the slide cylinder 201 through the conductive tube 202, and then transferred from the slide cylinder 201 to the conductive seat 200, and then transferred from the conductive seat 200 to the power transmission cable 400 at the other end, until the power transmission cable 400 drives the wire core 402 to stop loosening or loosen to the point of being about to leave the conductive tube 202; When the power transmission cable 400 drives the wire core 402 to be separated from the conductive tube 202, the contact area becomes smaller, which is likely to cause poor contact. At this time, the sleeve 232 is separated from the fixed slide bar 107 under the movement of the connector 110, the retaining spring 230 is loosened, and the rubber ring 220 and the power transmission cable 400 are no longer pressed tightly. At the same time, the connector 110 drives the fixing frame 120 to move during the movement, and the fixing frame 120 drives the air valve connecting block 316 to move. The air valve connecting block 316 drives the rod-shaped air valve 315 to slide, and the rod-shaped air valve 315 slides out of the blind hole inside the diverter 310. The limit slider 317 slides down under the action of gravity to prevent the rod-shaped air valve 315 from sliding out of the diverter 310. 10. The shunt pipe 313 is connected, and the high-pressure gas enters the lower air chamber 318 along the shunt pipe 313, and enters the blind hole inside the conductive seat 200 from the lower air chamber 318 through the blind hole at the bottom of the diverter 310, and is discharged from the conductive seat 200 through the gas guide rod 203, the buffer baffle 211, and the buffer head 210 in sequence, pushing the core 402 on the transmission cable 400 away from the conductive tube 202. The discharged high-pressure gas will cover the surface of the core 402 and the conductive tube 202 at the same time to prevent arcing during the separation process, thereby affecting the device, the conductor and nearby equipment. After the core 402 is pushed out, the line is powered off, thereby preventing accidents caused by poor contact.

[0020] 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 power grid cable connection auxiliary device, comprising an insulating shell (100), Features: The top of the insulating shell (100) is slidably connected to a connector (110), the top of the connector (110) is fixedly connected to a fixing frame (120), the top of the fixing frame (120) is fixedly connected to a bracket ring (121), the inside of the insulating shell (100) is fixedly connected to a conductive seat (200), the front of the conductive seat (200) is fixedly connected to a slide cylinder (201), the front of the conductive seat (200) is fixedly connected to an air guide rod (203), the inside of the slide cylinder (201) is fixedly connected to a conductive tube (202), the inside of the conductive tube (202) is slidably connected to a buffer head (210), the top of the insulating shell (100) is connected to a flow divider (310), the front of the flow divider (310) is slidably connected to a rod-shaped gas valve (315), the front of the rod-shaped gas valve (315) is fixedly connected to a gas valve connection block (316), and the surface of the gas valve connection block (316) is fixedly connected to the inside of the bracket ring (121).

2. A power grid cable connection auxiliary device according to claim 1, Features: The top of the insulating shell (100) is fixedly connected to a shell top (101), the bottom of the insulating shell (100) is fixedly connected to a support (103), the bottom of the support (103) is fixedly connected to an H-shaped base frame (104), the top and bottom cross-sections of the H-shaped base frame (104) are H-shaped, the front of the H-shaped base frame (104) is fixedly connected to a wheel plate (105), one side of the wheel plate (105) is rotatably connected to a rubber roller (106), the number of the wheel plates (105) is eight, two in each group, a total of four groups, each group has two rubber rollers (106) on each side. The side surfaces are symmetrically distributed on the center plane, two groups of which are located on the front of the H-shaped chassis (104), the two groups are symmetrically distributed with respect to the center planes of the two side surfaces of the insulation shell (100), and the other two groups are symmetrically distributed with respect to the center plane between the front and back sides of the insulation shell (100) with the aforementioned two groups, the number of the rubber rollers (106) being four, two in a group, two groups of which are located on the front of the H-shaped chassis (104), the two groups are symmetrically distributed with respect to the center planes of the two side surfaces of the insulation shell (100), and the other two groups are symmetrically distributed with respect to the center plane between the front and back sides of the insulation shell (100) with the aforementioned two groups.

3. A power grid cable connection auxiliary device according to claim 2, Features: The interior of the insulating shell (100) is a hollow structure, the top of the shell top (101) is connected to a circular through hole, the front of the insulating shell (100) is fixedly connected to a shell edge (102), the number of the shell edges (102) is two, and they are symmetrically distributed with respect to the center plane between the front and back sides of the insulating shell (100), the front of the shell top (101) is fixedly connected to a fixed slide bar (107), the number of the fixed slide bars (107) is four, and two of them form a group, one of which is located on the front of the shell top (101) and is symmetrically distributed with respect to the center plane of the two side surfaces of the insulating shell (100), and the other group is located on the back of the shell top (101) and is symmetrically distributed with respect to the center plane of the two side surfaces of the insulating shell (100).

4. A power grid cable connection auxiliary device according to claim 3, Features: A retaining ring (111) is fixedly connected inside the connector (110), a fixing ring (112) is fixedly connected inside the connector (110), a rubber ring bayonet (113) is fixedly connected inside the connector (110), a spring retaining ring (114) is fixedly connected on the front of the connector (110), a circular through hole is fixedly connected on the front of the connector (110), the number of the circular through holes is two, the central axis of the circular through hole coincides with the central axis of the fixed slide bar (107), the diameter of the circular through hole is consistent with the cross-sectional diameter of the fixed slide bar (107), the connector (110) is slidably connected to the surface of the fixed slide bar (107) through the circular through hole, the front of the retaining ring (111) is fixedly connected to the back of the shell edge (102) through a spring, and the number of the connector (110), the retaining ring (111), the fixing ring (112), the rubber ring bayonet (113), and the spring retaining ring (114) are all two, and are symmetrically distributed about the center plane between the front and back of the insulating shell (100).

5. A power grid cable connection auxiliary device according to claim 1, Features: The front side of the support ring (121) is fixedly connected with a circular through hole, the front side of the fixing frame (120) is fixedly connected with a front support (122), the bottom of the front support (122) is fixedly connected to the connector (110), and one side of the fixing frame (120) is fixedly connected with a side support (123). The number of the fixing frame (120), the support ring (121), and the front support (122) are all two, and they are symmetrically distributed with respect to the center plane between the front side and the back side of the insulating shell (100). The number of the side supports (123) is four, and two of them form a group. The two groups are symmetrically distributed with respect to the center plane between the front side and the back side of the insulating shell (100), and each group is symmetrically distributed with respect to the center plane of the two side surfaces of the fixing frame (120). The bottom of the side support (123) is fixedly connected to the connector (110).

6. A power grid cable connection auxiliary device according to claim 1, Features: The top of the conductive seat (200) is connected to a circular blind hole, and the top of the conductive seat (200) is connected to the top through hole of the shell top (101) through the circular blind hole. The front of the gas guide rod (203) is connected to a circular through hole, and the circular through hole of the gas guide rod (203) is connected to the circular blind hole of the conductive seat (200). The front of the gas guide rod (203) is fixedly connected to a rubber pad (204). The back of the buffer head (210) is fixedly connected to a buffer baffle (211), and the surface of the buffer baffle (211) is slidably connected to the inside of the slide cylinder (201). The back of the buffer baffle (211) is fixedly connected to a sliding guide rod ( 212), the buffer head (210), the buffer baffle (211), and the sliding guide rod (212) are connected to each other with a circular through hole on the front side, the sliding guide rod (212) is slidably connected to the surface of the air guide rod (203) through the through hole, the back side of the buffer baffle (211) is fixedly connected to the front side of the conductive seat (200) through a spring, and the number of the slide cylinder (201), the conductive tube (202), the air guide rod (203), the rubber pad (204), the buffer head (210), the buffer baffle (211), and the sliding guide rod (212) are all two, and are symmetrically distributed about the center plane between the front side and the back side of the insulating shell (100).

7. A power grid cable connection auxiliary device according to claim 4, Features: A rubber ring hook (221) is fixedly connected inside the rubber ring bayonet (113), a rubber ring (220) is fixedly connected to the front of the rubber ring hook (221), a retaining spring (230) is fixedly connected to the top of the rubber ring (220), the retaining spring (230) is an open circular ring, a connecting piece (231) is fixedly connected to the top of the retaining spring (230), a sleeve (232) is fixedly connected to one side of the connecting piece (231), the sleeve (232) is slidably connected to the surface of the fixed slide rod (107), the connecting piece (231) and the sleeve (232) are both in number two, and are symmetrically distributed about the center plane of the two side surfaces of the insulating shell (100), and the rubber ring (220), the rubber ring hook (221), the retaining spring (230), and the connecting piece (231) are both in number two, and are symmetrically distributed about the center plane between the front and back sides of the insulating shell (100).

8. A power grid cable connection auxiliary device according to claim 1, Features: The top of the connector (110) is fixedly connected to a gas tank rack (304), the top of the gas tank rack (304) is fixedly connected to a high-pressure gas tank (300), the top of the high-pressure gas tank (300) is fixedly connected to a plug (302), the top of the plug (302) is fixedly connected to a right-angle joint (301), the back of the right-angle joint (301) is connected to a high-pressure hose (303), the other end of the high-pressure hose (303) is connected to a flange (311), the bottom of the flange (311) is connected to the top of the flow divider (310), the bottom of the flow divider (310) is connected to a circular blind hole, the bottom of the flow divider (310) is connected to the circular through hole at the top of the shell top (101) through the circular blind hole, the top of the circular blind hole of the flow divider (310) is connected to a lower air chamber (318), the top of the lower air chamber (318) is connected to A shunt pipe (313) is provided, the top of the shunt pipe (313) is connected to an upper air chamber (312), the top of the upper air chamber (312) is connected to a flange (311), the front of the shunt (310) is connected to a circular blind hole, the circular blind hole is connected to a rubber layer (314), the shunt (310) is slidably connected to a rod-shaped air valve (315) via the circular blind hole on the front, the front of the shunt (310) is fixedly connected to an air valve sealing nozzle (319), the central axis of the air valve sealing nozzle (319) coincides with the central axis of the circular blind hole on the front of the shunt (310), the inner diameter of the air valve sealing nozzle (319) is consistent with the circular blind hole on the front of the shunt (310), the number of the shunt pipe (313) and the air valve sealing nozzle (319) is two, and they are symmetrically distributed with respect to the central planes of the front and back surfaces of the insulating shell (100).

9. A power grid cable connection auxiliary device according to claim 1, Features: A rubber layer (314) is fixedly connected to the surface of the rod-shaped air valve (315), a circular through hole is fixedly connected to the bottom of the rod-shaped air valve (315), a circular through hole is fixedly connected to the bottom of the rubber layer (314), the position of the circular through hole is consistent with the position of the circular blind hole at the bottom of the rod-shaped air valve (315), a limit slider (317) is slidably connected inside the circular blind hole at the bottom of the rod-shaped air valve (315), and the number of the rubber layer (314), the rod-shaped air valve (315), the air valve connecting block (316), and the limit slider (317) are all two, and are symmetrically distributed about the center plane between the front and back sides of the insulating shell (100).

10. A power grid cable connection auxiliary device according to claim 1, Features: A power transmission cable (400) is fixedly connected inside the conductive seat (200), the power transmission cable (400) comprises an insulating layer (401), the power transmission cable (400) is fixedly connected to the rubber ring (220) via the insulating layer (401), a wire core (402) is fixedly connected inside the insulating layer (401), the insulating layer (401) is flush with the front surface of the wire core (402), the length of the wire core (402) is greater than the length of the insulating layer (401), and the back surface of the wire core (402) is fixedly connected to the front surface of the buffer head (210).

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