Switching structure and low-voltage switch cabinet

Through the modular adaptation structure and adjustable sealing mechanism, the problems of insufficient wiring space and poor sealing effect of the switch cabinet are solved, flexible wiring adjustment and stable electrical connection are achieved, and the safety and reliability of the equipment are improved.

CN120389293APending Publication Date: 2025-07-29HUNAN PROVINCE DONGFANG ELECTRICAL APPLIANCE CO LTD
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Patent Information

Application Number
CN202510544189.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2025-07-29

AI Technical Summary

Technical Problem

The traditional switch cabinet structure leads to limited wiring space, which is difficult to meet the diverse wiring needs of complex systems, and the sealing effect is poor, which can easily lead to invasion of rats and cause electrical failures.

Method used

It adopts a modular adapter structure, including mounting strips, fixing plates, connecting columns and conductive columns, combined with an adjustable sealing mechanism to achieve wire concealment and sealing, and supports flexible wiring adjustment and sealing plate adjustment to ensure stability and reliability.

Benefits of technology

提高了开关柜的通用性和适应性,减少了因接线不足而更换设备的成本,增强了设备的安全性和可靠性,防止鼠类入侵,简化了接线过程。

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a switching structure and a low-voltage switch cabinet, and belongs to the technical field of switch cabinets. A switching structure comprises a mounting strip, a first connecting column is fixedly arranged on one side of the mounting strip, a first inserting hole used for inserting a control line is formed in the top of the first connecting column, a fixing plate is fixedly connected to one side of the mounting strip through a supporting frame, a second connecting column is arranged on the fixing plate in a penetrating mode, a fourth conductive column is arranged in the second connecting column, and a second conductive column is arranged in the fourth conductive column. The first connecting piece is arranged in the first connecting column and comprises a second conductive column and a third conductive column which are arranged in a sliding mode, through the wire groove and in cooperation with the adjustable sealing mechanism, electric wires can be hidden efficiently to prevent rats, stable and flexible installation and adjustment of the sealing plate are achieved, and space is greatly saved. And the switching structures in the cabinet adopt modular design, and a plurality of switching structures can be compactly arranged, so that various wiring requirements are met, and control line fixation and position adjustment can be completed in a limited space.
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Description

Technical Field

[0001] The present invention belongs to the technical field of switch cabinets and relates to an adapter structure and a low-voltage switch cabinet. Background Art

[0002] During the installation and operation of electrical equipment, as a core power distribution and control device, the performance and rationality of the structural design of the switch cabinet directly affect the system reliability. With the increasing complexity of the electrical system, the number and types of wiring required by the controller continue to grow. Traditional switch cabinets have inherent structural limitations: on the one hand, their fixed internal layout results in limited wiring space, making it difficult to meet the diverse wiring needs of complex systems; on the other hand, when new wiring needs to be added or adjusted, large-scale modifications to the cabinet body are often required, which not only increases the modification cost but also may cause system downtime, seriously affecting production continuity. In addition, the wiring adjustment process requires other equipment to be shut down, and it is difficult to achieve independent on-off control of a single device.

[0003] At the physical protection level, the inlet of the switch cabinet is mostly designed with openings at the bottom or side. If the sealing measures are improper, it is easy to become an invasion channel for small animals such as mice. After rodents invade, they will gnaw on the cable insulation layer, causing faults such as short circuits and open circuits, seriously threatening the safety of the electrical system. Existing sealing solutions mostly use fixed covers or rubber plugs, which have defects such as poor sealing effect and difficulty in adapting to the installation requirements of different specifications of cables.

[0004] Therefore, we propose an adapter structure and a low-voltage switch cabinet to solve the above-mentioned problems. Summary of the Invention

[0005] In view of this, in order to solve the problems of simple fixing method, conforming to simulation tests, high flexibility in test operation, and improving test efficiency, the present invention provides an adapter structure and a low-voltage switch cabinet.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An adapter structure, comprising:

[0008] An installation bar, on one side of which a first connection column is fixedly provided, and a first jack for inserting a control line is opened at the top of the first connection column;

[0009] A fixing plate, fixedly connected to one side of the installation bar through a support frame, a second connection column penetrates through the fixing plate, and a fourth conductive column is provided inside the second connection column;

[0010] a first connecting member, disposed in the first connecting post, comprising a second conductive post and a third conductive post slidably disposed, the second conductive post being elastically reset by a first spring to clamp the control line, and the third conductive post being elastically reset by a second spring to contact the fourth conductive post;

[0011] a driving member, comprising a conductive block slidably disposed within the first connecting post and a lifting post extending through the first connecting post, the lifting post being connected to the conductive block at its bottom end and having a fixing bracket disposed on its top, the fixing bracket driving the second and third conductive posts to move and then being fixedly connected to the extension plate via a first bolt;

[0012] The plug-in block is detachably plugged into one side of the fixed plate and is connected to the second connecting column and the adjacent plug-in block through the sixth conductive column. The outer ends of the plug-in block and the second connecting column are both provided with terminal posts. A second connecting member is provided inside the plug-in block, and the second connecting member controls the on and off of the terminal posts through the sliding rod and the seventh conductive column.

[0013] As a further improvement of the above technical solution:

[0014] The conductor block is provided with an inclined surface structure, and the inclined surface structure drives the second conductive column to move toward the first insertion hole and pushes the third conductive column to contact the fourth conductive column.

[0015] The outer wall of the second connecting column is provided with a collar and a nut ring, the collar is inserted into the fixing plate, the nut ring is threadedly sleeved on the collar and contacts the fixing plate to fix the second connecting column, and the outer wall of the nut ring is rotatably sleeved with a connecting block.

[0016] The second connecting member includes a sliding rod passing through the top of the plug-in block, a seventh conductive column is fixed to the bottom end of the sliding rod, and the seventh conductive column is elastically interference-connected between the terminal post and the sixth conductive column.

[0017] A second screw is rotatably provided on the top of the plug-in block, the second screw is threadedly connected to the lifting bar, and the top end of the sliding rod is fixed to the lifting bar to drive the seventh conductive column to move.

[0018] A low-voltage switchgear, comprising the above-mentioned transfer structure, further comprising:

[0019] A base, with a cabinet body on the top, and the transfer structure is arranged in the cabinet body;

[0020] A wire trough is provided on one side of the base and is used to hide wires;

[0021] The sealing mechanism is arranged on both sides of the base and includes an adjustable sealing plate. One side of the sealing plate is provided with multiple easy-to-break grooves, which form holes adapted to the wire trough after breaking. Nut blocks are fixed on both sides of the base. The top of the nut block is threadedly connected to the first screw rod, and the bottom end of the first screw rod is rotatably connected to the sealing plate to adjust the vertical displacement of the sealing plate.

[0022] As a further improvement of the above technical solution:

[0023] The wire duct is made of flame-retardant PC material, and the sealing plate contacts and seals the outer wall of the wire duct through the holes formed by the breakable duct.

[0024] A first guide groove and a second guide groove are formed on one side of the fixing plate. The first guide groove is slidably engaged with the lifting bar, and the second guide groove is slidably engaged with the lifting bar.

[0025] An insulating sleeve is sleeved on the outer end of the third conductive column, and a positioning groove adapted to the insulating sleeve and the third conductive column is formed at one end of the second connecting column and the fourth conductive column.

[0026] The transfer structure is modularly arranged in the cabinet, and the plug-in block can be expanded to increase the number of terminals.

[0027] The beneficial effects of the present invention are as follows: 1. The transfer structure and low-voltage switch cabinet disclosed in the present invention can effectively hide the wires and seal the gap between the base and the wire trough through the cooperation of the wire trough provided on one side of the base and the sealing mechanism, thereby preventing rats from entering, improving the safety and service life of the equipment, and reducing failures and safety hazards caused by rats gnawing on the wires. In addition, the sealing plate in the sealing mechanism is provided with an easy-to-break groove, which can form a hole adapted to the wire trough after breaking, so that the opening size of the sealing plate can be adjusted according to actual needs, which is convenient for the arrangement and maintenance of the wires and can ensure the sealing effect. At the same time, the two sides of the seat are rotatably connected to the sealing plate by the nut block and the first screw. This fixing method is simple and reliable, and can ensure the stable installation of the sealing plate on the base, and effectively prevent the sealing plate from loosening and causing sealing failure.

[0028] 2. The present invention discloses a transfer structure and a low-voltage switchgear. Multiple transfer structures are provided within the cabinet body, which can conveniently expand the controller wiring to meet the electrical connection requirements of different scales and complexities. This improves the versatility and adaptability of the switchgear and reduces the cost of replacing equipment due to insufficient wiring.

[0029] 3. A transfer structure and a low-voltage switchgear disclosed by the present invention. Driven by a driving member, the first connecting member can not only drive the third conductive column to contact the fourth conductive column, but also fix the control wire on one side of the extension plate, facilitating the arrangement and fixation of the control wire, improving the cleanliness and maintenance convenience of the equipment, enabling stable clamping of the control wire and reliable connection with the fourth conductive column, ensuring the stability and reliability of the electrical connection, and reducing problems such as poor contact.

[0030] 4. A transfer structure and a low-voltage switchgear disclosed by the present invention. The collar and nut ring sleeved on the outer wall of the second connecting column can firmly fix the second connecting column on the fixing plate, ensuring the stability of the second connecting column. At the same time, the connecting block rotatably sleeved on the outer wall of the nut ring, in cooperation with multiple plug-in blocks, can expand multiple connection terminals on one control wire, making the subsequent equipment connection more convenient.

[0031] 5. A transfer structure and a low-voltage switchgear disclosed by the present invention. Through structures such as a sliding rod, a seventh conductive column, a second screw rod, and a lifting strip, the second connecting member can conveniently drive the on-off of each connection terminal separately, realizing the control of electrical connection, meeting the usage requirements under different working conditions, improving the flexibility and controllability of the equipment. At the same time, in cooperation with the first guiding groove and the second guiding groove opened on the fixing plate, it can play an accurate guiding and positioning role for the plug-in block and the connecting block, ensuring the stability and accuracy of the plug-in block and the connecting block during installation and movement, and improving the overall performance and reliability of the equipment.

[0032] Through the wire groove and the adjustable sealing mechanism, the present invention can efficiently hide the wires to prevent rodent damage, realize the stable and flexible installation and adjustment of the sealing plate, and greatly save space. The transfer structure inside the cabinet adopts a modular design, and multiple transfer structures can be arranged compactly to meet diverse wiring requirements, and can complete the fixation and position adjustment of the control wire in a limited space.

[0033] The second connecting column is fixed to the fixing plate through the collar and the nut ring. The connecting block is rotatably sleeved on the outer wall of the nut ring, further saving space. The second connecting member uses the screw drive of the sliding rod, the seventh conductive column, the second screw rod and the lifting strip to flexibly control the on-off of the connection terminal in a compact space. At the same time, the first guiding groove and the second guiding groove on the fixing plate accurately position the plug-in block and the connecting block to ensure the close cooperation of each component.

[0034] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail preferably with reference to the accompanying drawings, where:

[0036] Figure 1 is a three-dimensional structural schematic diagram of a transfer structure and a low-voltage switchgear cabinet according to the present invention;

[0037] Figure 2 is a structural schematic diagram of the installation of the base and the sealing plate of a transfer structure and a low-voltage switchgear cabinet according to the present invention;

[0038] Figure 3 is a structural schematic diagram of the sealing plate of a transfer structure and a low-voltage switchgear cabinet according to the present invention;

[0039] Figure 4 is a structural schematic diagram of the transfer structure of a transfer structure and a low-voltage switchgear cabinet according to the present invention;

[0040] Figure 5 is Figure 4 a partially enlarged structural schematic diagram in;

[0041] Figure 6 is a cross-sectional structural schematic diagram of the first connecting column and the second connecting column of a transfer structure and a low-voltage switchgear cabinet according to the present invention;

[0042] Figure 7 is a cross-sectional structural schematic diagram of the plug-in block of a transfer structure and a low-voltage switchgear cabinet according to the present invention;

[0043] Figure 8 is a structural schematic diagram of the installation of the lifting strip and the fixing plate of a transfer structure and a low-voltage switchgear cabinet according to the present invention.

[0044] Reference numerals: 1, base; 2, cabinet body; 3, transfer structure; 4, wire groove; 5, sealing plate; 6, nut block; 7, first screw; 8, hole; 9, breakable groove; 10, installation strip; 11, support frame; 12, fixing block; 13, first connecting column; 14, fixing frame; 15, extension plate; 16, first bolt; 17, first conductive column; 18, connecting block; 19, wiring column; 20, fixing plate; 21, plug-in block; 22, second connecting column; 23, second bolt; 24, first installation groove; 25, second conductive column; 26, first spring; 27, first jack; 28, second installation groove; 29, wire block; 30, lifting column; 31, third installation groove; 32, third conductive column; 33, second spring; 34, insulating sleeve; 35, positioning groove; 36, fourth conductive column; 37, collar; 38, nut ring; 39, fifth conductive column; 40, sixth conductive column; 41, sliding rod; 42, seventh conductive column; 43, second jack; 44, first guiding groove; 45, second guiding groove; 46, second screw; 47, lifting strip. DETAILED DESCRIPTION

[0045] The following describes the embodiments of the present invention by means of specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0046] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the dimensions of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0047] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0048] Example 1, as Figures 1 - 8 The figure shows a transfer structure and low-voltage switchgear, comprising a base 1 and a cabinet 2 mounted on top of the base 1. One side of the base 1 is connected to a wire trough 4, which is made of flame-retardant PC material and conceals wires. Seals are provided on both sides of the base 1 to seal the trough 4 and the base 1, preventing rats from entering. Multiple transfer structures 3 are located within the cabinet 2 to expand the controller wiring.

[0049] The adapter structure 3 includes a first connecting post 13 fixed to one side of the mounting bar 10. A fixing plate 20 corresponding to the first connecting post 13 is also fixed to one side of the mounting bar 10 via two support brackets 11. A second connecting post 22 corresponding to the first connecting post 13 is provided through one side of the fixing plate 20. A fourth conductive post 36 is provided within the second connecting post 22. A first jack 27 for connecting a control line is defined at the top end of the first connecting post 13. A first connector is provided within the first connecting post 13, connecting the control line to the fourth conductive post 36.

[0050] The specific structure of the first connector is as follows: the first connector includes a first mounting slot 24 defined within the first connecting post 13, one end of which communicates with a first insertion hole 27. A second conductive post 25 is slidably mounted within the first mounting slot 24. A first spring 26 is sheathed around the outer wall of the second conductive post 25, with the ends of the first spring 26 fixedly connected to the outer wall of the second conductive post 25 and one inner wall of the first mounting slot 24, respectively. A third mounting slot 31 is defined within the first connecting post 13, with a third conductive post 32 slidably mounted within the third mounting slot 31. A second spring 33 is sheathed around the outer wall of the third conductive post 32, with the ends of the second spring 33 fixedly connected to the outer wall of the third conductive post 32 and one inner wall of the third mounting slot 31, respectively. A driving element is provided within the first connecting post 13, which drives the second conductive post 25 toward the first insertion hole 27 to clamp the control line and drives the third conductive post 32 to contact the fourth conductive post 36. Both the first and second connecting posts 13 and 22 are made of insulating materials.

[0051] The specific structure of the driving member is as follows: the driving member includes a second mounting slot 28 provided within the first connecting column 13, within which a wire block 29 is slidably mounted. A lifting column 30 is slidably mounted through the top of the first connecting column 13, and the bottom end of the lifting column 30 is fixedly connected to the wire block 29. A fixing bracket 14 is fixedly mounted on the top of the lifting column 30, and two first bolts 16 are mounted on one side of one end of the fixing bracket 14. A fixing block 12 is fixed to one side of the mounting bar 10 via a second bolt 23, allowing for easy installation and removal of the fixing block 12. The first connecting column 13 is fixed to one end of the fixing block 12, and an extension plate 15 is fixed to the top of the fixing block 12. Both first bolts 16 are threadedly mounted through the extension plate 15. By rotating the first bolts 16, the position of the lifting column 30 can be fixed, and the control line can be fixed to one side of the extension plate 15. When the lifting column 30 is pressed downward, the wire block 29 slides in the second mounting groove 28. During the sliding process, the tapered surface drives the second conductive column 25 to move closer to the first jack 27, thereby clamping the control wire inserted into the first jack 27; at the same time, the third conductive column 32 is driven to slide in the third mounting groove 31, contacting the fourth conductive column 36, thereby achieving communication between the control wire and the fourth conductive column 36. In addition, the lifting column 30 is made of an insulating material to prevent electric shock during the fixing process.

[0052] A collar 37 is fixedly sleeved on the outer wall of the second connecting column 22. The collar 37 is inserted into the fixing plate 20, and one side of it abuts against the fixing plate 20. A nut ring 38 is threadedly sleeved on the outer wall of the collar 37. One end of the nut ring 38 abuts against the fixing plate 20, which is used to fix the second connecting column 22 on the fixing plate 20. A connecting block 18 is rotatably sleeved on the outer wall of the nut ring 38. By using the nut ring 38 to drive the collar 37 to approach the fixing plate 20 until the fixing plate 20 is clamped between the nut ring 38 and the collar 37, it is convenient to fix the second connecting column 22 on the fixing plate 20.

[0053] A plurality of plug-in blocks 21 are inserted into one side of the fixing plate 20. Adjacent two plug-in blocks 21 and between the plug-in block 21 and the second connecting column 22 are inserted into each other. Wiring columns 19 for wiring are provided at the outer ends of the plug-in block 21 and the second connecting column 22. After being inserted, the plurality of wiring columns 19 are communicated with each other. Second connectors are provided in both the plug-in block 21 and the second connecting column 22, which are used to control the on-off of the wiring column 19, so that the on-off of each wiring column 19 can be accurately controlled without powering off all the wiring columns 19.

[0054] The specific structure of the second connector is as follows: The second connector includes a plurality of sliding rods 41 penetrating through the tops of the plug-in block 21 and the second connecting column 22. A sixth conductive column 40 penetrates through one side of the plug-in block 21. Second jacks 43 inserted with the sixth conductive column 40 are provided on the other side of the plug-in block 21, both sides of the connecting block 18, and the outer wall of the second connecting column 22. The sixth conductive column 40 is inserted into the corresponding second jack 43, so that adjacent two sixth conductive columns 40 are in contact, and the sixth conductive column 40 is in contact with the fifth conductive column 39, and an elastic wire plate is provided between them to prevent virtual connection. A seventh conductive column 42 is fixedly provided at the bottom end of the sliding rod 41 between the wiring column 19 and the sixth conductive column 40 and between the wiring column 19 and the fifth conductive column 39. The seventh conductive column 42 is in interference fit with the wiring column 19, the seventh conductive column 42 and the fifth conductive column 39, so that it can be in full contact with them to avoid virtual connection, and the sliding rod 41 is made of insulating material.

[0055] Second screws 46 are rotatably provided at the tops of the connecting block 18 and the plug-in block 21. A lifting strip 47 is threadedly sleeved on the outer wall of the second screw 46. The top end of the sliding rod 41 is fixedly connected to the corresponding lifting strip 47. By rotating the second screw 46, the lifting strip 47 can be driven to move up and down, thereby driving the sliding rod 41 to move up and down, changing the connection state between the seventh conductive column 42 and the wiring column 19 and the sixth conductive column 40 and between the wiring column 19 and the fifth conductive column 39, realizing the control of the on-off of the wiring column 19, and thus accurately controlling the on-off of each wiring column 19.

[0056] Example 2, refer toFigures 1 - 8 The present invention provides a new technical solution, a transfer structure and a low-voltage switch cabinet, wherein the sealing mechanism includes a sealing plate 5 that is adjustably arranged on one side of the base 1. A plurality of groups of easily broken grooves 9 are provided on one side of the sealing plate 5. When the sealing plate 5 needs to be installed or adjusted, the easily broken grooves 9 can be destroyed to form holes 8 that are compatible with the wire trough 4. At this time, the wire trough 4 can fit into the holes 8 so that the wires can be passed through the wire trough 4 and the sealing effect can be ensured. Nut blocks 6 are fixed on both sides of the base 1, and a first screw 7 is provided through the top of the nut block 6, and the bottom end of the first screw 7 is rotatably connected to the sealing plate 5. By rotating the first screw 7, the sealing plate 5 can be driven to move up and down, thereby adjusting the degree of sealing between the sealing plate 5 and the wire trough 4 to ensure the sealing effect.

[0057] A first guide groove 44 corresponding to the lifting strip 47 is provided on one side of the fixing plate 20, and a second guide groove 45 corresponding to the plug-in block 21 and the connecting block 18 is provided on one side of the fixing plate 20. The second guide groove 45 is connected to the first guide groove 44 and is used to fix the plug-in block 21 and the connecting block 18 to ensure the stability of the plug-in block 21 and the connecting block 18 during movement.

[0058] An insulating sleeve 34 is fixedly mounted on the outer end of the third conductive post 32. Positioning slots 35 are defined at one end of each of the second connecting post 22 and the fourth conductive post 36, respectively, to mate with the insulating sleeve 34 and the third conductive post 32. When the third conductive post 32 contacts the fourth conductive post 36, the insulating sleeve 34 is inserted into the positioning slot 35, providing positioning and insulation, thereby ensuring a stable and reliable connection between the third conductive post 32 and the fourth conductive post 36.

[0059] Working principle: When in use, place the wire trough 4 on one side of the base 1, then selectively break the easily breakable groove 9 according to the size of the wire trough 4 to form a hole 8 that matches the wire trough 4, then insert one end of the wire trough 4 into the base 1, and then rotate the first screw 7 to drive the sealing plate 5 downward to make the hole 8 contact the outside of the wire trough 4, and then connect the wires. After the wiring is completed, the wires are placed in the wire trough 4 to prevent mice from gnawing on them.

[0060] When it is necessary to expand the wiring of the control line, the adapter structure 3 is installed on one side of the mounting bar 10, and the upper control line is inserted into the first socket 27. Then, the fixing frame 14 is pressed downward, which can drive the lifting column 30 to move downward. The downward movement of the lifting column 30 can drive the wire block 29 to move downward. The downward movement of the wire block 29 can drive the second conductive column 25 to move closer to the first socket 27, fixing the control line in the first socket 27. At the same time, it can also drive the third conductive column 32 to move, so that the third conductive column 32 is inserted into the corresponding positioning groove 35 until one end of the third conductive column 32 is completely in contact with the fourth conductive column 36. Then, the fixing frame 14 is fixed to one side of the extension plate 15 by the first bolt 16, and the control line is fixed to one side of the extension plate 15 at the same time.

[0061] Then, fix the connecting wire of the external device to the middle terminal 19, and rotate the second screw 46 in the middle. The rotation of the second screw 46 drives the lifting bar 47 downward, which drives the sliding rod 41 downward. The downward movement of the lifting bar 47 drives the sliding rod 41 downward, which drives the seventh conductive post 42 downward, so that the seventh conductive post 42 is inserted between the sixth conductive post 40 and the terminal 19. Now, the control line can communicate with the device connection line.

[0062] When it is necessary to further expand the terminal 19, the plug-in block 21 is plugged into one side of the fixed plate 20. During the plug-in process, one end of the lifting bar 47 is located in the first guide groove 44 until the plug-in is completed. At this time, the sixth conductive post 40 in the plug-in block 21 can contact the fifth conductive post 39 through the elastic conductive sheet, so that the sixth conductive post 40 can be connected to the control line. Then, the second screw 46 is rotated to drive the lifting bar 47 downward so that the lifting bar 47 is located in the second guide groove 45, which can fix the position of the plug-in block 21 and drive the corresponding seventh conductive post 42 to move downward so that the sixth conductive post 40 is connected to the terminal 19 at the outer end. The above method is used to plug and expand in sequence.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A switching structure, characterized in that: include: A mounting bar (10) is fixedly provided with a first connecting column (13) on one side, and a first plug hole (27) for plugging in a control line is provided on the top of the first connecting column (13); A fixing plate (20) is fixedly connected to one side of the mounting bar (10) via a support frame (11); a second connecting column (22) is provided through the fixing plate (20); and a fourth conductive column (36) is provided inside the second connecting column (22); A first connecting member is provided in the first connecting column (13), comprising a second conductive column (25) and a third conductive column (32) which are slidably arranged, wherein the second conductive column (25) is elastically reset by a first spring (26) to clamp the control line, and the third conductive column (32) is elastically reset by a second spring (33) to contact the fourth conductive column (36); A driving member comprises a conductor block (29) slidably arranged in the first connecting column (13) and a lifting column (30) penetrating the first connecting column (13); the bottom end of the lifting column (30) is connected to the conductor block (29); and a fixing frame (14) is provided on the top; the fixing frame (14) drives the second conductive column (25) and the third conductive column (32) to move and then is fixedly connected to the extension plate (15) through a first bolt (16); The plug-in block (21) is detachably plugged into one side of the fixed plate (20) and is connected to the second connecting column (22) and the adjacent plug-in block (21) through the sixth conductive column (40). The outer ends of the plug-in block (21) and the second connecting column (22) are both provided with a terminal (19). A second connecting member is provided inside the plug-in block (21). The second connecting member controls the connection and disconnection of the terminal (19) through the sliding rod (41) and the seventh conductive column (42).

2. The adapter structure according to claim 1, wherein: The conductor block (29) is provided with an inclined surface structure, and the inclined surface structure drives the second conductive column (25) to move toward the first insertion hole (27) and pushes the third conductive column (32) to contact the fourth conductive column (36).

3. The adapter structure according to claim 1, wherein: The outer wall of the second connecting column (22) is provided with a collar (37) and a nut ring (38), the collar (37) is plugged into the fixing plate (20), the nut ring (38) is threadedly sleeved on the collar (37) and contacts the fixing plate (20) to fix the second connecting column (22), and the outer wall of the nut ring (38) is rotatably sleeved with the connecting block (18).

4. The adapter structure according to claim 1, wherein: The second connecting member comprises a sliding rod (41) passing through the top of the plug-in block (21), a seventh conductive column (42) being fixed to the bottom end of the sliding rod (41), and the seventh conductive column (42) being elastically interference-connected between the terminal (19) and the sixth conductive column (40).

5. The adapter structure according to claim 4, characterized in that: A second screw (46) is rotatably provided at the top of the plug-in block (21), the second screw (46) is threadedly connected to a lifting bar (47), and the top end of the sliding rod (41) is fixed to the lifting bar (47) to drive the seventh conductive column (42) to move.

6. A low-voltage switchgear cabinet, characterized in that, The transfer structure according to any one of claims 1 to 5 further comprises: A base (1) is provided with a cabinet (2) on the top, and the transfer structure is arranged in the cabinet (2); A wire trough (4) is provided on one side of the base (1) and is used to hide wires; The sealing mechanism is provided on both sides of the base (1) and includes an adjustable sealing plate (5). One side of the sealing plate (5) is provided with a plurality of easily breakable grooves (9) which form holes (8) adapted to the wire trough (4) after breaking. Nut blocks (6) are fixedly provided on both sides of the base (1). The top of the nut block (6) is threadedly connected to a first screw rod (7). The bottom end of the first screw rod (7) is rotatably connected to the sealing plate (5) to adjust the vertical displacement of the sealing plate (5).

7. The low-voltage switchgear according to claim 6, characterized in that: The wire trough (4) is made of flame-retardant PC material, and the sealing plate (5) is sealed against the outer wall of the wire trough (4) by the hole (8) formed by the breakage of the easily breakable groove (9).

8. The switchgear according to claim 6, characterized in that: A first guide groove (44) and a second guide groove (45) are provided on one side of the fixing plate (20). The first guide groove (44) is in sliding engagement with the lifting bar (47), and the second guide groove (45) is in sliding engagement with the lifting bar (47).

9. The low-voltage switchgear according to claim 6, wherein: The outer end of the third conductive column (32) is sleeved with an insulating sleeve (34), and one end of the second connecting column (22) and the fourth conductive column (36) is provided with a positioning groove (35) adapted to the insulating sleeve (34) and the third conductive column (32).

10. The switch cabinet according to claim 6, characterized in that: The transfer structure (3) is modularly arranged in the cabinet (2), and the plug-in block (21) can be extended to increase the number of terminal posts (19).