A high-voltage AC metal-enclosed ring network switchgear

Abstract

The present invention discloses a high-voltage AC metal-enclosed ring network switch device, which relates to the technical field of high-voltage switch devices, and includes a base plate arranged on the inner wall of an electrical cabinet, a limit plate arranged at the end of the base plate, and a positioning assembly slidably installed on the inner wall of the limit plate; the high-voltage AC metal-enclosed ring network switch device, when the circular ring moves, synchronously drives the limit rod rotatably installed on its outer surface to move, because the end of the limit rod is rotatably connected to the end of the protective rod, so that the protective rod moves synchronously with the limit rod, and at the same time, a connecting block is rotatably installed in the middle position of the protective rod, and the connecting block is arranged on the protective tube, so that when the protective rod is subjected to force, it rotates around the end of the connecting block, so that the protective rod moves away from one end of the limit rod to the middle or expands to both ends, thereby ensuring that the connection line of the switch device remains stable and reduces the possibility of falling off and loosening.

Description

Technical Field

[0001] The present invention relates to high-voltage switchgear technology, and in particular to a high-voltage AC metal-enclosed ring network switchgear. Background Art

[0002] Currently, my country's urban and rural power supply primarily utilizes a high-voltage ring network model. Within this system, the high-voltage control switchgear currently used is primarily ring network switchgear. This primarily consists of a control cabinet housing, internally installed high-voltage circuit breakers, high-voltage disconnectors, and numerous circuit monitoring and control components. This high-voltage ring network switchgear boasts stable operation and low cost, making it a highly popular choice. A ring network switchgear is a set of high-voltage switchgear installed within a steel metal cabinet or assembled into a compartmented ring network power supply unit. Its core components utilize load switches and fuses, offering advantages such as a simple structure, compact size, low price, and the ability to improve power supply parameters, performance, and safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, and factories and enterprises.

[0003] The Chinese invention patent with publication number CN111371034B discloses a high-voltage AC metal-enclosed ring network switchgear. When the high-voltage AC metal-enclosed ring network switchgear is used, the fixing plate is inserted into the mounting seat for installation and fixed by the fixing rod. The fixing effect of the device is improved by the engagement of the upper fixing teeth and the lower fixing teeth. When the device needs to be dismantled, the box body can be disassembled by simply pulling up the fixing rod. At the same time, when there is a problem with the components inside the device, the slide plate is slid forward and the mounting plate is rotated by the rotating shaft to facilitate the inspection and replacement of the components. After inspection, the slide plate is pushed backward and positioned and fixed by the positioning pin. The overall operation is simple and convenient, the installation efficiency is high, and the fixing effect is good, which is convenient for later inspection and has strong practicality.

[0004] The installation process of existing equipment is relatively complicated, time-consuming and labor-intensive. At the same time, when workers are repairing electrical components, there is a lack of operating space inside the cabinet, which makes it easy for them to touch the circuits of other electrical components during repair or replacement, affecting the use of other electrical components. In addition, during the long-term operation of electrical equipment and circuits, thermal expansion and contraction will cause screws and joints to loosen, which can easily cause the joints to heat up and, in severe cases, may cause a fire. Therefore, a high-voltage AC metal-enclosed ring network switchgear has been developed. Summary of the Invention

[0005] The object of the present invention is to provide a high voltage AC metal enclosed ring network switchgear to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-voltage AC metal-enclosed ring network switchgear, comprising a base plate arranged on the inner wall of an electrical cabinet, a limit plate being provided at an end of the base plate, and a positioning assembly being slidably mounted on the inner wall of the limit plate, and a clamping block being attached to an end of the positioning assembly, a docking plate being provided at an end of the clamping block, an electrical component being provided at an end of the docking plate, and an extension plate being provided at an end of the docking plate;

[0007] A protection component, which is mounted on the extension board and protects the circuit;

[0008] The protective assembly includes a driving block slidably connected to the extension plate, and a fixing plate is provided at the end of the driving block. A protective tube is provided at the end of the fixing plate. The outer surface of the protective tube is provided with multiple groups of through holes, and the multiple groups of through holes are evenly distributed on the outer surface of the protective tube.

[0009] An adjusting cylinder is slidably mounted on the inner wall of the protective cylinder away from one end of the fixing plate, the end of the adjusting cylinder penetrates and extends to the inner wall of the protective cylinder, and a pressing block is provided at the end of the adjusting cylinder;

[0010] The regulating tube is provided with a circular ring in the inner cavity of the protective tube, and a second elastic member is provided at the end of the circular ring 341. The end of the second elastic member away from the circular ring is connected to the inner wall of the protective tube.

[0011] Multiple groups of limiting rods are rotatably mounted on the outer surface of the ring, and the multiple groups of limiting rods are evenly distributed on the outer surface of the ring, and the ends of the limiting rods pass through and extend to the outside of the through hole;

[0012] The outer surface of the protective tube is provided with a connecting block corresponding to the limiting rod, the end of the connecting block is rotatably mounted with a protective rod, and the end of the protective rod is rotatably connected to the end of the limiting rod.

[0013] As a further optimization solution of the present invention, the cross section of the fixing plate is L-shaped, and the lower end of the fixing plate is rotatably connected to the upper end of the driving block.

[0014] As a further optimization solution of the present invention, the positioning assembly includes a slider slidably connected to the inner wall of the limiting plate, and a bottom plate is provided at the end of the slider.

[0015] As a further optimization solution of the present invention, guide grooves are symmetrically provided at the ends of the bottom plate, and adjustment blocks are slidably mounted on the inner walls of the guide grooves.

[0016] As a further optimization solution of the present invention, a clamping groove is provided at a middle position of the end portion of the bottom plate, and a protrusion is slidably mounted on the inner wall of the clamping groove.

[0017] As a further optimization solution of the present invention, a movable plate is provided at the end of the protrusion, and limiting grooves are provided on both sides of the movable plate.

[0018] As a further optimization solution of the present invention, a positioning block is slidably mounted on the inner wall of the limiting groove, and the lower end of the positioning block is connected to the upper end of the adjusting block.

[0019] As a further optimized solution of the present invention, a first elastic member is provided on the inner wall of the clamping groove, and an end portion of the first elastic member is connected to the outer surface of the movable plate.

[0020] As a further optimization solution of the present invention, a slot is provided at the end of the movable plate, and the inner wall of the slot fits with the outer surface of the clamping block.

[0021] As a further optimization solution of the present invention, the end of the positioning block is in contact with the outer surface of the clamping block.

[0022] Compared with the prior art, the present invention provides a high-voltage AC metal-enclosed ring network switch device, which has the following beneficial effects: when the circular ring moves, it synchronously drives the limit rod installed on its outer surface to move. Since the end of the limit rod is rotatably connected to the end of the protective rod, the protective rod moves synchronously with the limit rod. At the same time, a connecting block is rotatably installed in the middle position of the protective rod, and the connecting block is set on the protective tube, so that when the protective rod is subjected to force, it rotates around the end of the connecting block, so that the protective rod moves away from one end of the limit rod to the middle or expands to both ends, thereby ensuring that the connection line of the switch device remains stable and reducing the possibility of falling off and loosening.

[0023] When the clamping block is in contact with the inner wall of the slot, the force applied to the movable plate stops, and the first elastic member drives the movable plate to move toward its initial position, causing the two positioning blocks to move toward the center, thereby clamping the outer surface of the clamping block and ensuring the stability of the clamping block. A push plate is provided at the end of the movable plate, and the end of the push plate extends to the outside of the docking plate, making it easier for operators to operate and allowing for quick operation during maintenance or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the positioning component structure provided by an embodiment of the present invention;

[0027] Figure 3 A first cross-sectional view of the internal structure of a positioning assembly provided by an embodiment of the present invention;

[0028] Figure 4 A second cross-sectional view of the internal structure of the positioning assembly provided by an embodiment of the present invention;

[0029] Figure 5 A third cross-sectional view of the internal structure of the positioning assembly provided by an embodiment of the present invention;

[0030] Figure 6 A first schematic diagram of the structure of a protection component provided by an embodiment of the present invention;

[0031] Figure 7 A second schematic diagram of the structure of the protection assembly provided by an embodiment of the present invention;

[0032] Figure 8 A cross-sectional view of the internal structure of the protective component provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Base plate; 2. Positioning assembly; 3. Protective assembly; 11. Docking plate; 12. Electrical component; 13. Extension plate; 14. Limiting plate; 15. Snap-fit ​​block; 21. Slider; 22. Bottom plate; 23. Guide groove; 24. Adjusting block; 25. Movable plate; 251. Slot hole; 252. Snap-fit ​​groove; 253. Protrusion; 26. First elastic member; 27. Positioning block; 28. Limiting groove; 31. Fixed plate; 32. Driving block; 33. Protective tube; 331. Through hole; 34. Adjusting tube; 341. Ring; 35. Pressing block; 36. Second elastic member; 37. Limiting rod; 38. Connecting block; 39. Protective rod. DETAILED DESCRIPTION

[0035] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example: See Figures 1-8 A high-voltage AC metal-enclosed ring network switchgear includes a base plate 1 arranged on the inner wall of an electrical cabinet, a limit plate 14 is provided at the end of the base plate 1, and a positioning component 2 is slidably installed on the inner wall of the limit plate 14, and a clamping block 15 is attached to the end of the positioning component 2, and a docking plate 11 is provided at the end of the clamping block 15, an electrical component 12 is provided at the end of the docking plate 11, and an extension plate 13 is provided at the end of the docking plate 11.

[0038] In this solution, the substrate 1 is fixedly mounted on the inner wall of the electrical cabinet, and the position of the substrate 1 is set according to the actual situation so that it is suitable for the current scene. At the same time, the cross section of the limit plate 14 is concave, so that the slider 21 arranged on its inner wall can move.

[0039] The extension plate 13 is clamped on the docking plate 11 , and the position of the extension plate 13 is adjusted according to actual conditions. The extension plate 13 is fixed by bolts and other fixing components to ensure the stability of the extension plate 13 .

[0040] Furthermore, the protective component 3 is assembled on the extension plate 13, and the circuit is protected by the protective component 3; wherein, the protective component 3 includes a driving block 32 that is slidingly connected to the extension plate 13, and a fixing plate 31 is provided at the end of the driving block 32, and a protective tube 33 is provided at the end of the fixing plate 31, and a plurality of groups of through holes 331 are opened on the outer surface of the protective tube 33, and the plurality of groups of through holes 331 are evenly distributed on the outer surface of the protective tube 33.

[0041] In this embodiment, a groove is provided on the extension plate 13, and the inner wall of the groove is slidably connected to the outer surface of the driving block 32. The position of the protective component 3 is adjusted according to the actual situation to make it suitable for the current scenario. A protective hole is provided at one end of the protective tube 33 away from the fixed plate 31, and the circuit is limited by the protective hole.

[0042] Furthermore, an adjusting cylinder 34 is slidably mounted on the inner wall of one end of the protective cylinder 33 away from the fixing plate 31 . The end of the adjusting cylinder 34 penetrates and extends to the inner wall of the protective cylinder 33 . A pressing block 35 is provided at the end of the adjusting cylinder 34 .

[0043] Specifically, the outer surface of the adjusting cylinder 34 is slidably connected to the inner wall of the protection hole, thereby limiting the moving trajectory of the adjusting cylinder 34 , thereby ensuring that the adjusting cylinder 34 does not fall off during movement.

[0044] At the same time, the adjusting cylinder 34 is driven to move by the pressing block 35 , and the end of the pressing block 35 is extended to the outside of the protective cylinder 33 , making it convenient for the operator to squeeze the pressing block 35 .

[0045] Furthermore, the regulating tube 34 is provided with a ring 341 in the inner cavity of the protective tube 33 , and a second elastic member 36 is provided at the end of the ring 341 . The end of the second elastic member 36 away from the ring 341 is connected to the inner wall of the protective tube 33 .

[0046] Specifically, the second elastic member 36 is an elastic component such as a spring, and the second elastic member 36 supports the adjustment cylinder 34 so that the adjustment cylinder 34 squeezes the second elastic member 36 when it is subjected to force, and when the force stops, the adjustment cylinder 34 is pushed to the initial position by the force of the second elastic member 36.

[0047] Furthermore, multiple sets of limit rods 37 are rotatably installed on the outer surface of the ring 341, and the multiple sets of limit rods 37 are evenly distributed on the outer surface of the ring 341. At the same time, the ends of the limit rods 37 pass through and extend to the outside of the through hole 331; the outer surface of the protective tube 33 is provided with a connecting block 38 corresponding to the limit rod 37, and the end of the connecting block 38 is rotatably installed with a protective rod 39, and the end of the protective rod 39 is rotatably connected to the end of the limit rod 37.

[0048] Specifically, when the ring 341 moves, it synchronously drives the limit rod 37 installed on its outer surface to move. Since the end of the limit rod 37 is rotatably connected to the end of the protective rod 39, the protective rod 39 moves synchronously with the limit rod 37. At the same time, a connecting block 38 is rotatably installed in the middle position of the protective rod 39, and the connecting block 38 is set on the protective tube 33, so that when the protective rod 39 is subjected to force, it rotates around the end of the connecting block 38, so that the protective rod 39 moves away from one end of the limit rod 37 to the middle or expands to both ends, thereby ensuring that the connection line of the switch device remains stable and reduces the possibility of falling off and loosening.

[0049] Furthermore, the cross section of the fixing plate 31 is L-shaped, and the lower end of the fixing plate 31 is rotatably connected to the upper end of the driving block 32 .

[0050] Specifically, when the overall angle deviates, the fixing plate 31 can be rotated to adjust its angle so as to adapt to the connection end of the current electrical component 12, so that when the line is installed, the line can be pre-fixed in advance, so that when the line is connected to the switch device, the connection end can be assembled directly without having to hold the line, which makes it convenient for the operator to assemble the electrical component.

[0051] Furthermore, the positioning assembly 2 includes a slider 21 slidably connected to the inner wall of the stop plate 14. A base plate 22 is disposed at the end of the slider 21. Guide grooves 23 are symmetrically defined at the ends of the base plate 22, and an adjustment block 24 is slidably mounted on the inner wall of the guide groove 23. A snap-fitting groove 252 is defined in the middle of the end of the base plate 22, and a protrusion 253 is slidably mounted on the inner wall of the snap-fitting groove 252.

[0052] In this embodiment, the protrusion 253 is limited by the engaging groove 252 , so that the movable plate 25 disposed on the protrusion 253 moves synchronously therewith, and the two guide grooves 23 are in an eight-shaped shape in a top view.

[0053] Furthermore, a movable plate 25 is provided at the end of the protrusion 253, with limit slots 28 defined on both sides of the movable plate 25. A positioning block 27 is slidably mounted on the inner wall of the limit slot 28, the lower end of which is connected to the upper end of the adjustment block 24. A first elastic member 26 is provided on the inner wall of the engaging slot 252, the end of which is connected to the outer surface of the movable plate 25.

[0054] Specifically, when the movable plate 25 moves, it moves along the trajectory of the snap-fit ​​groove 252, and at the same time cooperates with the first elastic member 26 set at the end of the movable plate 25 to limit the movable plate 25, so that after the movable plate 25 is subjected to force, the movable plate 25 is pushed to the initial position by the force of the first elastic member 26; the first elastic member 26 is an elastic component such as a spring.

[0055] Since the upper end of the adjusting block 24 is connected to the lower end of the positioning block 27, when the movable plate 25 moves, the positioning block 27 is synchronously driven to move, and then the adjusting block 24 moves along the inner wall of the guide groove 23, driving the two positioning blocks 27 to move to both sides until the two positioning blocks 27 move into the inner cavity of the movable plate 25.

[0056] The positioning block 27 is moved through the limiting groove 28 so that the positioning block 27 moves along the inner wall of the limiting groove 28 , thereby preventing the positioning block 27 from falling off during movement.

[0057] Furthermore, a slot 251 is formed at the end of the movable plate 25 , and the inner wall of the slot 251 is in contact with the outer surface of the clamping block 15 . The end of the positioning block 27 is in contact with the outer surface of the clamping block 15 .

[0058] Specifically, when the clamping block 15 is in contact with the inner wall of the slot 251, the force applied to the movable plate 25 stops, and the movable plate 25 is driven to move to the initial position through the action of the first elastic member 26, so that the two positioning blocks 27 move closer to the middle, thereby clamping the outer surface of the clamping block 15 to ensure the stability of the clamping block 15.

[0059] A push plate is provided at the end of the movable plate 25, and the end of the push plate extends to the outside of the docking plate 11, which is convenient for the operator to operate and can be operated quickly during maintenance or replacement.

[0060] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A high voltage AC metal enclosed ring network switchgear, characterized in that: The invention comprises a base plate (1) arranged on the inner wall of an electrical cabinet, a limiting plate (14) being arranged at the end of the base plate (1), and a positioning assembly (2) being slidably mounted on the inner wall of the limiting plate (14), and a clamping block (15) being attached to the end of the positioning assembly (2), a docking plate (11) being arranged at the end of the clamping block (15), an electrical component (12) being arranged at the end of the docking plate (11), and an extension plate (13) being arranged at the end of the docking plate (11); A protection component (3) is mounted on the extension plate (13), and the circuit is protected by the protection component (3); The protective assembly (3) includes a driving block (32) slidably connected to the extension plate (13), and a fixing plate (31) is provided at the end of the driving block (32), and a protective tube (33) is provided at the end of the fixing plate (31), and the outer surface of the protective tube (33) is provided with multiple groups of through holes (331), and the multiple groups of through holes (331) are evenly distributed on the outer surface of the protective tube (33); An adjusting cylinder (34) is slidably mounted on the inner wall of one end of the protective cylinder (33) away from the fixing plate (31), and the end of the adjusting cylinder (34) penetrates and extends into the inner cavity of the protective cylinder (33). A pressing block (35) is provided at the end of the adjusting cylinder (34); The regulating cylinder (34) is provided with a circular ring (341) on the inner wall of the protective cylinder (33), and a second elastic member (36) is provided at the end of the circular ring 341. The end of the second elastic member (36) away from the circular ring (341) is connected to the inner wall of the protective cylinder (33); Multiple groups of limiting rods (37) are rotatably mounted on the outer surface of the circular ring (341), and the multiple groups of limiting rods (37) are evenly distributed on the outer surface of the circular ring (341), and the ends of the limiting rods (37) penetrate and extend to the outside of the through hole (331); The outer surface of the protective tube (33) is provided with a connecting block (38) corresponding to the limiting rod (37), and the end of the connecting block (38) is rotatably mounted with a protective rod (39), and the end of the protective rod (39) is rotatably connected to the end of the limiting rod (37).

2. The high-voltage AC metal-enclosed ring network switchgear according to claim 1, characterized in that: The cross section of the fixing plate (31) is L-shaped, and the lower end of the fixing plate (31) is rotatably connected to the upper end of the driving block (32).

3. The high-voltage AC metal-enclosed ring network switchgear according to claim 1, characterized in that: The positioning assembly (2) comprises a slider (21) slidably connected to the inner wall of the limiting plate (14), and a bottom plate (22) is provided at the end of the slider (21).

4. The high-voltage AC metal-enclosed ring network switchgear according to claim 3, characterized in that: The end of the bottom plate (22) is symmetrically provided with a guide groove (23), and an adjustment block (24) is slidably mounted on the inner wall of the guide groove (23).

5. The high-voltage AC metal-enclosed ring network switchgear according to claim 4, characterized in that: A snap-fitting groove (252) is provided at the middle position of the end of the bottom plate (22), and a protrusion (253) is slidably mounted on the inner wall of the snap-fitting groove (252).

6. The high-voltage AC metal-enclosed ring network switchgear according to claim 5, characterized in that: A movable plate (25) is provided at the end of the protrusion (253), and limiting grooves (28) are provided on both sides of the movable plate (25).

7. The high-voltage AC metal-enclosed ring network switchgear according to claim 6, characterized in that: A positioning block (27) is slidably mounted on the inner wall of the limiting groove (28), and the lower end of the positioning block (27) is connected to the upper end of the adjusting block (24).

8. The high-voltage AC metal-enclosed ring network switchgear according to claim 7, characterized in that: A first elastic member (26) is provided on the inner wall of the clamping groove (252), and an end portion of the first elastic member (26) is connected to the outer surface of the movable plate (25).

9. The high-voltage AC metal-enclosed ring network switchgear according to claim 8, characterized in that: A slot hole (251) is provided at the end of the movable plate (25), and the inner wall of the slot hole (251) is in contact with the outer surface of the clamping block (15).

10. The high-voltage AC metal-enclosed ring network switchgear according to claim 9, characterized in that: The end of the positioning block (27) is in contact with the outer surface of the clamping block (15).

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