A connecting device for a switch cabinet

Abstract

The present invention provides a connection device for a switch cabinet, which relates to the technical field of power cables. A connection device for a switch cabinet includes a connection sleeve and two connection columns. The two connection columns respectively extend into the connection sleeve from both ends of the connection sleeve, and a plurality of connection caps are arranged on the surfaces of the two connection columns. A push rod is arranged in each of the plurality of connection caps. One end of the push rod extends into the connection column, and the other end is connected to the connection cap. A worm gear is sleeved on the push rod located in the connection column, and the worm gear is rotatably arranged in the connection column. The worm gears are all located on the axis of the connection column, the worm gears are sleeved on the push rods and are threadedly connected to the push rods. A worm is arranged in the axial direction of the connection column, and the worm gears are all meshed with the worm. One end of the worm extends out of the connection column, and a plurality of grooves are formed in the inner wall of the connection sleeve. The plurality of connection caps can respectively extend into the plurality of grooves in a one-to-one correspondence. The present invention can enable the switch cabinets to be quickly disassembled and quickly connected, and at the same time can avoid the problem of poor contact.

Description

Technical Field

[0001] The present invention relates to the technical field of power cables, and more particularly, to a connection device for a switch cabinet. Background Art

[0002] Gas switch cabinets C-GIS are widely used in medium and high voltage power supply systems and high-speed railway systems. Among them, the bus-side splicing method is favored by many switch manufacturers because of its stable electrical performance, convenient installation and compact structure. During operation, multiple gas switch cabinets are usually spliced together to achieve electrical connection. However, when one of them, especially the gas switch cabinet in the middle, leaks air or has an electrical fault, it is very difficult to repair and restore. In the prior art, the following two emergency repair schemes are usually adopted to solve the above problems: Scheme 1: Replace the leaking or faulty gas switch cabinet C-GIS with a new one on site. However, the operation difficulty on site is very high for the removal of electrical connection in a short time, the transportation of the new gas switch cabinet and the reinstallation of electrical connection with the switch cabinets on both sides. If there is a batch of gas switch cabinets leaking air or having electrical faults, it is very unrealistic to prepare multiple spare gas switch cabinets to go to the site for replacement and emergency repair. Scheme 2: Temporarily replace the leaking or faulty gas switch cabinet with an air tank or an oil tank. This scheme can only be realized by inflating and deflating the air tank on site or filling the oil tank on site. However, this method is not easy to implement at the emergency repair site.

[0003] In the art, the repair and replacement time of gas switch cabinets is strictly limited because power grid outage is required during the replacement process of switch cabinets. Therefore, the repair and replacement time of gas switch cabinets cannot be too long, and multiple switch cabinets must be electrically connected in a short time to ensure the normal operation and use of the power supply system. However, for the above schemes, it is necessary to disassemble the leaking or faulty switch cabinet within a limited time, find the accident point for repair, and finally reinstall the repaired switch cabinet and electrically connect it with the switch cabinets on both sides. The difficulty of completing these steps in a short time is very high and almost impossible to achieve. At present, the connection devices used in the repair and replacement of existing gas switch cabinets still have problems of unstable connection and easy poor contact. Summary of the Invention

[0004] The purpose of the present invention is to provide a connection device for a switch cabinet, which can quickly disassemble and connect switch cabinets, improve the connection stability, and effectively avoid the problem of poor contact.

[0005] The embodiments of the present invention are implemented as follows:

[0006] An embodiment of the present application provides a connection device for a switch cabinet, which includes a connection sleeve and two connection columns. The two connection columns respectively extend into the connection sleeve from both ends of the connection sleeve. A plurality of connection caps are arranged on the surfaces of the two connection columns. Push rods are arranged in the plurality of connection caps. One end of the push rod extends into the connection column, and the other end is connected to the connection cap. A worm gear is sleeved on the push rod located in the connection column. The worm gear is rotatably arranged in the connection column. The worm gears are all located on the axis of the connection column. The worm gear is sleeved on the push rod and is threadedly connected to the push rod. A worm is arranged in the axial direction of the connection column. The worm gears are all meshed with the worm. One end of the worm extends out of the connection column. A plurality of grooves are formed on the inner wall of the connection sleeve. The plurality of connection caps can respectively extend into the plurality of grooves in a one-to-one correspondence.

[0007] In some embodiments of the present invention, a spring is sleeved on any of the above push rods. One end of the spring is connected to the connection cap, and the other end is connected to the connection column.

[0008] In some embodiments of the present invention, the cross-section of the above connection cap is a trapezoidal structure.

[0009] In some embodiments of the present invention, a connection component is arranged between the two connection columns. The connection component includes a male head and a female head. The male head is arranged on any connection column, and the female head is arranged on the other connection column. The male head can extend into the female head and is connected to the female head in a matching manner.

[0010] In some embodiments of the present invention, a bushing is arranged at one end of the worm that extends out of the connection column. The connection column can extend into the bushing and is threadedly connected to the bushing. The worm extends into the bushing.

[0011] In some embodiments of the present invention, a first rotating handle is arranged at one end of the worm located on the side of the bushing.

[0012] In some embodiments of the present invention, a clamping component is arranged on the bushing. The clamping component includes two symmetrically arranged clamping parts. The clamping part includes a lead screw and a clamping block. One end of the lead screw passes through the bushing and is connected to the clamping block. The lead screw is threadedly connected to the bushing.

[0013] In some embodiments of the present invention, a second rotating handle is connected to one end of the lead screw located outside the bushing.

[0014] In some embodiments of the present invention, an external sleeve is arranged between the bushing and the connection sleeve. The external sleeve is sleeved at the connection part of the bushing and the connection sleeve. The external sleeve is made of insulating material.

[0015] In some embodiments of the present invention, the connection sleeve includes an insulating layer and a conductive layer. The groove is formed on the conductive layer. The insulating layer is sleeved on the conductive layer.

[0016] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0017] The present invention provides a connecting device for a switch cabinet, including a connecting sleeve and two connecting columns. The above-mentioned connecting sleeve is used to connect the two connecting columns, so that the two connecting columns can quickly extend into the connecting sleeve for fixed connection. The above-mentioned connecting column can be connected to the busbar of the corresponding switch cabinet. The two above-mentioned connecting columns respectively extend into the above-mentioned connecting sleeve along both ends of the above-mentioned connecting sleeve. A plurality of connecting caps are arranged on the surfaces of the two above-mentioned connecting columns, and push rods are arranged in the plurality of above-mentioned connecting caps. One end of the above-mentioned push rod extends into the above-mentioned connecting column, and the other end is connected to the above-mentioned connecting cap. A worm gear is sleeved on the push rod located in the above-mentioned connecting column. The above-mentioned worm gear is rotatably arranged in the above-mentioned connecting column, and the above-mentioned worm gears are all located on the axis of the above-mentioned connecting column. The above-mentioned worm gear is sleeved on the above-mentioned push rod and is threadedly connected to the above-mentioned push rod. A worm is arranged in the axial direction of the above-mentioned connecting column, and the above-mentioned worm gears are all meshed with the above-mentioned worm. One end of the above-mentioned worm extends out of the above-mentioned connecting column, and a plurality of grooves are formed on the inner wall of the above-mentioned connecting sleeve. The plurality of above-mentioned connecting caps can respectively extend into the plurality of above-mentioned grooves in a one-to-one correspondence. After the two above-mentioned connecting columns respectively extend into the above-mentioned connecting sleeve along both ends of the above-mentioned connecting sleeve, the two connecting columns can be connected together after contact. During the process of the two above-mentioned connecting columns extending into the sleeve, the connecting caps arranged on them can move to the corresponding grooves. When the two connecting columns are in contact and connected at the end face, all the connecting caps have moved to their respective corresponding grooves. By rotating the end of the above-mentioned worm located outside the connecting column, the worm can drive the worm gear to rotate. After the above-mentioned worm gear rotates, since the worm gear is threadedly connected to the push rod and the worm gear rotates fixedly in the connecting column, the push rod will move along its own axis direction. Thus, the above-mentioned push rod can be used to push the above-mentioned connecting cap into the corresponding groove and contact the inner wall of the groove. After the busbar of the above-mentioned switch cabinet is connected to the connecting column, the connecting column plays a conductive role. The two connecting columns are in conductive connection after contact at the end face, so that the two switch cabinets can be quickly electrically connected. At the same time, after the above-mentioned connecting cap enters the groove and is tightly pressed in the groove by the push rod, the effective contact between the connecting column and the connecting sleeve can be effectively ensured, and the problem of poor contact can be extremely avoided. Similarly, when disassembly is required, quickly rotate the above-mentioned worm in the reverse direction to make the push rod move in the reverse direction, so that the connecting cap exits from the groove, and at this time, the two connecting columns can be quickly taken out.

[0018] Therefore, it can enable the switch cabinets to be quickly disassembled and quickly connected, and at the same time, it can also improve the connection stability and effectively avoid the problem of poor contact. Description of the Drawings

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0021] Figure 2 is Figure 1 an enlarged view of part A in

[0022] Figure 3 is Figure 2 an enlarged view of part B in

[0023] Icon: 1 - connecting sleeve, 101 - conductive layer, 102 - insulating layer, 2 - connecting column, 3 - connecting cap, 4 - push rod, 5 - worm gear, 6 - worm, 7 - groove, 8 - spring, 9 - male head, 10 - female head, 11 - bushing, 12 - first rotating handle, 13 - clamping block, 14 - lead screw, 15 - second rotating handle, 16 - external sleeve. Detailed Embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the embodiments of the present invention, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0028] In addition, if terms such as "horizontal", "vertical", "hanging", etc. are used, it does not mean that the component is required to be absolutely horizontal or hanging, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0029] In the description of the embodiments of the present invention, "a plurality of" represents at least two.

[0030] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] Embodiment

[0032] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 which shows the structural schematic diagram of the embodiments of the present invention; Figure 2 is Figure 1 the enlarged view of part A in Figure 3 is Figure 2Enlarged view at B in the figure. This embodiment provides a connecting device for a switch cabinet, including a connecting sleeve 1 and two connecting columns 2. The above-mentioned connecting sleeve 1 is used to connect the two connecting columns 2, so that the two connecting columns 2 can quickly extend into the connecting sleeve 1 for fixed connection. The above-mentioned connecting column 2 can be connected to the busbar of the corresponding switch cabinet. The two above-mentioned connecting columns 2 respectively extend into the above-mentioned connecting sleeve 1 along both ends of the above-mentioned connecting sleeve 1. A plurality of connecting caps 3 are arranged on the surfaces of the two above-mentioned connecting columns 2, and a push rod 4 is arranged in each of the plurality of above-mentioned connecting caps 3. One end of the above-mentioned push rod 4 extends into the above-mentioned connecting column 2, and the other end is connected to the above-mentioned connecting cap 3. A worm gear 5 is sleeved on the push rod 4 located in the above-mentioned connecting column 2. The above-mentioned worm gear 5 is rotatably arranged in the above-mentioned connecting column 2, and the above-mentioned worm gears 5 are all located on the axis of the above-mentioned connecting column 2. The above-mentioned worm gear is sleeved on the above-mentioned push rod 4 and is threadedly connected to the above-mentioned push rod 4. A worm 6 is arranged in the axial direction of the above-mentioned connecting column 2, and the above-mentioned worm gears 5 are all meshed with the above-mentioned worm 6. One end of the above-mentioned worm 6 extends out of the above-mentioned connecting column 2, and a plurality of grooves 7 are formed on the inner wall of the above-mentioned connecting sleeve 1. The plurality of above-mentioned connecting caps 3 can respectively extend into the plurality of above-mentioned grooves 7 in a one-to-one correspondence. After the two above-mentioned connecting columns 2 respectively extend into the above-mentioned connecting sleeve 1 along both ends of the above-mentioned connecting sleeve 1, the two connecting columns 2 can be connected together after contact. During the process of the two above-mentioned connecting columns 2 extending into the sleeve, the connecting caps 3 arranged on them can move to the corresponding grooves 7. When the two connecting columns 2 are in contact connection at the end face, all the connecting caps 3 have moved to their respective corresponding grooves 7. By rotating one end of the above-mentioned worm 6 located outside the connecting column 2, the worm 6 can drive the worm gear 5 to rotate. After the above-mentioned worm gear 5 rotates, since the worm gear 5 is threadedly connected to the push rod 4 and the worm gear rotates fixedly in the connecting column 2, the push rod 4 will move along its own axis direction. Thus, the above-mentioned push rod 4 can push the above-mentioned connecting cap 3 into the corresponding groove 7 and contact the inner wall of the groove 7. After the busbar of the above-mentioned switch cabinet is connected to the connecting column 2, the connecting column 2 plays a conductive role. The two connecting columns 2 are in conductive connection after contact at the end face, so that the two switch cabinets can be quickly electrically connected. At the same time, after the above-mentioned connecting cap 3 enters the groove 7 and is tightly pressed in the groove 7 by the push rod 4, the effective contact between the connecting column 2 and the connecting sleeve 1 can be effectively guaranteed, and the problem of poor contact can be extremely avoided. After the above-mentioned connecting cap 3 enters the groove 7, it can also play a role of clamping. The connecting cap 3 is clamped in the groove 7, which can prevent the connecting column 2 from moving along the axis direction and causing the problem of poor contact. Similarly, when disassembly is required, quickly rotate the above-mentioned worm 6 in the reverse direction to make the push rod 4 move in the reverse direction, so that the connecting cap 3 exits from the groove 7. At this time, the two connecting columns 2 can be quickly taken out.

[0033] Therefore, it can enable the switch cabinets to be quickly disassembled and quickly connected, and at the same time can improve the connection stability and effectively avoid the problem of poor contact.

[0034] It should be noted that the cooperation between the above-mentioned connection cap 3 and the groove 7 can increase the contact area with the connection sleeve 1, further improve the electrical conductivity, and avoid the problem of poor contact.

[0035] Please refer to Figure 1 、 Figure 2 and Figure 3 In some embodiments of the present embodiment, a spring 8 is sleeved on any of the above-mentioned push rods 4. One end of the spring 8 is connected to the connection cap 3, and the other end is connected to the connection column 2.

[0036] In this embodiment, the spring 8 is sleeved on the push rod 4. By connecting the connection column 2 and the connection cap 3, the spring 8 can be in a stretched state. When it is necessary to remove the connection cap 3 from the groove 7, after the push rod 4 moves, the spring 8 can pull the connection cap 3 back to the initial position, so that the connection cap 3 quickly leaves the above-mentioned groove 7.

[0037] Please refer to Figure 1 、 Figure 2 and Figure 3 In some embodiments of the present embodiment, the cross-section of the connection cap 3 is a trapezoidal structure.

[0038] In this embodiment, the cross-section of the connection cap 3 is a trapezoidal structure, and the shape of the groove 7 matches the trapezoidal structure, so that the connection cap 3 can be stably arranged in the groove 7.

[0039] Please refer to Figure 1 、 Figure 2 and Figure 3 In some embodiments of the present embodiment, a connection component is arranged between the two connection columns 2. The connection component includes a male head 9 and a female head 10. The male head 9 is arranged on any connection column 2, the female head 10 is arranged on the other connection column 2, and the male head 9 can extend into the female head 10 and be connected with the female head 10 in a matching manner.

[0040] In this embodiment, the male head 9 and the female head 10 are used to realize the connection of the two connection columns 2 at the end face. The male head 9 and the female head 10 are both arranged on the end faces of their respective corresponding connection columns 2. When the two connection columns 2 approach, the male head 9 and the female head 10 will come into contact and be connected together.

[0041] Please refer to Figure 1 、 Figure 2 and Figure 3 In some embodiments of the present embodiment, a bushing 11 is arranged at one end of the worm 6 extending out of the connection column 2. The connection column 2 can extend into the bushing 11 and be threadedly connected with the bushing 11, and the worm 6 extends into the bushing 11.

[0042] In this embodiment, the above-mentioned bushing 11 is used for connecting the above-mentioned busbar to the connecting column 2. The connecting column 2 extends into the threaded hole and can be threadedly connected to the bushing 11. After the busbar is electrically connected to the bushing 11, the bushing 11 can be rotated and sleeved on the connecting column 2.

[0043] Please refer to Figure 1 、 Figure 2 and Figure 3 , in some embodiments of this embodiment, a first rotating handle 12 is provided at one end of the above-mentioned worm 6 located on the side of the above-mentioned bushing 11.

[0044] In this embodiment, the above-mentioned first rotating handle 12 can conveniently drive the worm 6 to rotate, improving the operation convenience and saving operation time.

[0045] Please refer to Figure 1 、 Figure 2 and Figure 3 , in some embodiments of this embodiment, a clamping assembly is provided on the above-mentioned bushing 11. The clamping assembly includes two symmetrically arranged clamping parts. The clamping part includes a lead screw 14 and a clamping block 13. One end of the lead screw 14 passes through the above-mentioned bushing 11 and is connected to the clamping block 13. The lead screw 14 is threadedly connected to the above-mentioned bushing 11.

[0046] In this embodiment, the above-mentioned clamping assembly is used to clamp the busbar inside the bushing 11. By rotating the lead screw 14, the clamping block 13 can be driven to approach or separate. When approaching, the busbar can be quickly clamped, and when separating, it can be quickly separated. It should be noted that both the above-mentioned clamping blocks 13 are made of conductive materials, which can achieve the conductive function and enable the busbar to be stably electrically connected to the bushing 11.

[0047] Please refer to Figure 1 、 Figure 2 and Figure 3 , in some embodiments of this embodiment, one end of the lead screw 14 located outside the above-mentioned bushing 11 is connected to a second rotating handle 15.

[0048] In this embodiment, the above-mentioned second rotating handle 15 can conveniently drive the lead screw 14 to rotate, so as to conveniently realize the rapid installation of the busbar.

[0049] Please refer to Figure 1 、 Figure 2 and Figure 3 , in some embodiments of this embodiment, an external sleeve 16 is provided between the above-mentioned bushing 11 and the above-mentioned connecting sleeve 1. The external sleeve 16 is sleeved at the connection between the above-mentioned bushing 11 and the above-mentioned connecting sleeve 1, and the external sleeve 16 is composed of insulating materials.

[0050] In this embodiment, the above-mentioned external sleeve 16 realizes the connection between the bushing 11 and the connecting sleeve 1. The above-mentioned external sleeve 16 is sleeved at the connection between the above-mentioned bushing 11 and the above-mentioned connecting sleeve 1, and is threadedly connected to the above-mentioned bushing 11 and the above-mentioned connecting sleeve 1. By rotating the external sleeve 16, the bushing 11 and the connecting sleeve 1 can be separated or connected. Thus, the connection stability can be further enhanced.

[0051] It should be noted that the above-mentioned external sleeve 16 is made of insulating material, which can avoid the occurrence of electric leakage and temperature.

[0052] In some embodiments of this embodiment, the above-mentioned connecting sleeve 1 includes an insulating layer 102 and a conductive layer 101. The above-mentioned groove 7 is formed on the above-mentioned conductive layer 101, and the above-mentioned insulating layer 102 is sleeved on the above-mentioned conductive layer 101.

[0053] In this embodiment, the above-mentioned connecting sleeve 1 is an exposed component. Therefore, for electrical safety, the connecting sleeve 1 includes an insulating layer 102 and a conductive layer 101. The insulating layer 102 can play a role in protecting against electric leakage, while the internal conductive layer 101 can fully ensure the stable electrical connection of the two connecting columns 2.

[0054] During use, the two connecting columns 2 are inserted into the connecting sleeve 1 from both sides of the connecting sleeve 1, so that the corresponding male heads 9 and female heads 10 on the two connecting columns 2 are connected. Then, at this time, the plurality of connecting caps 3 move to their respective corresponding groove 7 positions, and the first rotating handle 12 is rotated to drive the worm 6 to drive the worm wheel 5 to rotate, so that the push rod 4 pushes out the connecting cap 3, and the connecting cap 3 enters the groove 7 and abuts against the inner wall of the groove 7. Then, the bushing 11 connected with the bus is sleeved on the connecting column 2, and finally, by rotating the external sleeve 16, the bushing 11 and the connecting sleeve 1 can be connected. After the above-mentioned connecting cap 3 enters the groove 7 and is tightly pressed in the groove 7 by the push rod 4, the effective contact between the connecting column 2 and the connecting sleeve 1 can be effectively ensured, and the problem of poor contact can be extremely avoided. After the above-mentioned connecting cap 3 enters the groove 7, it can also play a role of clamping. The connecting cap 3 is clamped in the groove 7, which can prevent the connecting column 2 from moving along the axial direction and causing the problem of poor contact. Similarly, when disassembly is required, the above-mentioned worm 6 is quickly rotated in the reverse direction to move the push rod 4 in the reverse direction, so that the connecting cap 3 exits from the groove 7, and at this time, the two connecting columns 2 can be quickly taken out.

[0055] In summary, an embodiment of the present invention provides a connection device for a switch cabinet, including a connection sleeve 1 and two connection columns 2. The above-mentioned connection sleeve 1 is used to connect the two connection columns 2, so that the two connection columns 2 can quickly extend into the connection sleeve 1 for fixed connection. The above-mentioned connection column 2 can be connected to the busbar of the corresponding switch cabinet. The two above-mentioned connection columns 2 respectively extend into the above-mentioned connection sleeve 1 along both ends of the above-mentioned connection sleeve 1. A plurality of connection caps 3 are arranged on the surfaces of the two above-mentioned connection columns 2, and push rods 4 are arranged in a plurality of the above-mentioned connection caps 3. One end of the above-mentioned push rod 4 extends into the above-mentioned connection column 2, and the other end is connected to the above-mentioned connection cap 3. A worm gear 5 is sleeved on the push rod 4 located in the above-mentioned connection column 2. The above-mentioned worm gear 5 is rotatably arranged in the above-mentioned connection column 2, and the above-mentioned worm gears 5 are all located on the axis of the above-mentioned connection column 2. The above-mentioned worm gear is sleeved on the above-mentioned push rod 4 and is threadedly connected to the above-mentioned push rod 4. A worm 6 is arranged in the axial direction of the above-mentioned connection column 2, and the above-mentioned worm gears 5 are all meshed with the above-mentioned worm 6. One end of the above-mentioned worm 6 extends out of the above-mentioned connection column 2, and a plurality of grooves 7 are formed on the inner wall of the above-mentioned connection sleeve 1. A plurality of the above-mentioned connection caps 3 can respectively extend into a plurality of the above-mentioned grooves 7 in a one-to-one correspondence. After the two above-mentioned connection columns 2 respectively extend into the above-mentioned connection sleeve 1 along both ends of the above-mentioned connection sleeve 1, the two connection columns 2 can be connected together after contact. During the process of the two above-mentioned connection columns 2 extending into the sleeve, the connection caps 3 arranged on them can move to the corresponding grooves 7. When the two connection columns 2 are in contact connection at the end face, all the connection caps 3 have moved to their respective corresponding grooves 7. By rotating one end of the above-mentioned worm 6 located outside the connection column 2, the worm 6 can drive the worm gear 5 to rotate. After the above-mentioned worm gear 5 rotates, since the worm gear 5 is threadedly connected to the push rod 4 and the worm gear rotates fixedly in the connection column 2, the push rod 4 will move along its own axis direction. Thus, the above-mentioned push rod 4 can push the above-mentioned connection cap 3 into the corresponding groove 7 and contact the inner wall of the groove 7. After the busbar of the above-mentioned switch cabinet is connected to the connection column 2, the connection column 2 plays a conductive role. The two connection columns 2 are in conductive connection after contact at the end face, so as to quickly electrically connect the two switch cabinets. At the same time, after the above-mentioned connection cap 3 enters the groove 7 and is tightly pressed in the groove 7 by the push rod 4, the effective contact between the connection column 2 and the connection sleeve 1 can be effectively guaranteed, and the problem of poor contact can be very well avoided. Similarly, when disassembly is required, quickly rotate the above-mentioned worm 6 in the reverse direction to make the push rod 4 move in the reverse direction, so that the connection cap 3 exits from the groove 7. At this time, the two connection columns 2 can be quickly taken out. Therefore, it can quickly disassemble and quickly connect between switch cabinets, and at the same time can improve the connection stability and effectively avoid the problem of poor contact.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A connecting device for switch cabinets, used for electrical connection between two switch cabinets, Characterized in that, It includes a connecting sleeve and two connecting columns. The two connecting columns respectively extend into the connecting sleeve from both ends of the connecting sleeve. A plurality of connecting caps are arranged on the surfaces of the two connecting columns. Push rods are arranged in the plurality of connecting caps. One end of the push rod extends into the connecting column, and the other end is connected to the connecting cap. A worm gear is sleeved on the push rod located in the connecting column. The worm gear is rotatably arranged in the connecting column. The worm gears are all located on the axis of the connecting column. The worm gear is sleeved on the push rod and is threadedly connected to the push rod. A worm is arranged in the axial direction of the connecting column. The worm gears are all meshed with the worm. One end of the worm extends out of the connecting column. A plurality of grooves are formed on the inner wall of the connecting sleeve. The plurality of connecting caps can respectively extend into the plurality of grooves one by one; The connecting sleeve includes an insulating layer and a conductive layer. The grooves are formed on the conductive layer. The insulating layer is sleeved on the conductive layer; After the busbar of the switch cabinet is connected to the connecting column, the connecting column plays a conductive role. After the connecting cap enters the groove, it is tightly pressed in the groove by the push rod, which can effectively ensure the effective contact between the connecting column and the connecting sleeve.

2. The connecting device for switch cabinets according to claim 1, Characterized in that, A spring is sleeved on any of the push rods. One end of the spring is connected to the connecting cap, and the other end is connected to the connecting column.

3. The connecting device for switch cabinets according to claim 1, Characterized in that, The cross-section of the connecting cap is a trapezoidal structure.

4. The connecting device for switch cabinets according to claim 1, Characterized in that, A connecting component is arranged between the two connecting columns. The connecting component includes a male head and a female head. The male head is arranged on any connecting column, and the female head is arranged on the other connecting column. The male head can extend into the female head and is connected to the female head in a matching manner.

5. The connecting device for switch cabinets according to claim 1, Characterized in that, One end of the worm extending out of the connecting column is provided with a busbar sleeve. The connecting column can extend into the busbar sleeve and is threadedly connected to the busbar sleeve. The worm extends into the busbar sleeve.

6. The connecting device for switch cabinets according to claim 5, Characterized in that, A first rotating handle is arranged at one end of the worm located on the side of the busbar sleeve.

7. The connecting device for switch cabinets according to claim 6, Characterized in that, A clamping component is arranged on the busbar sleeve. The clamping component includes two symmetrically arranged clamping parts. The clamping part includes a lead screw and a clamping block. One end of the lead screw passes through the busbar sleeve and is connected to the clamping block. The lead screw is threadedly connected to the busbar sleeve.

8. The connecting device for switch cabinets according to claim 7, Characterized in that, One end of the lead screw located outside the busbar sleeve is connected to a second rotating handle.

9. The connecting device for switch cabinets according to claim 6, Characterized in that, An external sleeve is provided between the bushing and the connecting sleeve. The external sleeve is sleeved at the connection between the bushing and the connecting sleeve, and the external sleeve is composed of insulating materials.

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