Self-locking mechanism for high-voltage vacuum switch

Abstract

The utility model provides a self-locking mechanism for a high-voltage vacuum switch. According to the self-locking mechanism for the high-voltage vacuum switch, a high-voltage vacuum switch body is installed at the top of a buffering bottom frame, a brake shaft is installed on one side of the high-voltage vacuum switch body through a brake head, a soft sleeve is arranged at the position, close to the other end, of the outer surface of the brake shaft, and a fixing ring is installed on the outer surface of the brake shaft; mounting bolts are fixedly connected to the top and the bottom of the fixing ring, clamping rings are mounted at the positions, close to one sides, of the outer surfaces of the mounting bolts, mounting openings are formed in the tops and the bottoms of the clamping rings, and fixing discs are fixedly connected to the opposite faces of the interiors of the mounting openings; the other end of each fixing disc is provided with a connecting bolt through a reset spring. According to the self-locking mechanism for the high-voltage vacuum switch provided by the utility model, bidirectional self-locking of the brake shaft on the high-voltage vacuum switch body can be realized through the structure, and the safety of the high-voltage vacuum switch body after opening and closing can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage vacuum switch self-locking, in particular to a self-locking mechanism for a high-voltage vacuum switch. Background Art

[0002] High-voltage vacuum circuit breaker creates a high vacuum state when disconnecting the current, so that the current cannot establish an arc in the vacuum. Its core component is the vacuum switch, which consists of the main recovery electrode, fixed static electrode, motion mechanism, vacuum, etc.

[0003] The patent publication 202221482664.2 includes a shell and a closing shaft arranged on the outer wall of the shell, and is characterized in that: the end of the closing shaft away from the shell is fixedly connected to the closing operating handle, and a limit disk is fixedly sleeved on the closing shaft..., ensuring that the circuit breaker is in a self-locking state when in the closed position, effectively preventing safety hazards caused by accidentally touching the closing operating handle.

[0004] The above-mentioned application structure is self-locking by combining a wedge-shaped limit block and a limit plate. However, the shape of the wedge-shaped limit block generally results in only one-way self-locking. In order to increase the safety of the high-voltage vacuum switch, self-locking is required in both the open and closed states. If the switch is self-locked in one direction, the safety of the high-voltage vacuum switch will be reduced.

[0005] Therefore, it is necessary to provide a self-locking mechanism for a high-voltage vacuum switch to solve the above technical problems. Utility Model Content

[0006] The utility model provides a self-locking mechanism for a high-voltage vacuum switch, which solves the problem that self-locking the gate of the high-voltage vacuum switch in one direction will cause the gate to lack a self-locking structure in the other direction, thereby reducing the safety of the high-voltage vacuum switch.

[0007] In order to solve the above technical problems, the utility model provides a self-locking mechanism for a high-voltage vacuum switch, comprising: a buffer chassis;

[0008] A high-voltage vacuum switch body, the high-voltage vacuum switch body is mounted on the top of the buffer chassis, a gate shaft is mounted on one side of the high-voltage vacuum switch body through a gate head, a soft sleeve is provided on the outer surface of the gate shaft near the other end, a fixing ring is mounted on the outer surface of the gate shaft, the top and bottom of the fixing ring are fixedly connected to mounting bolts, a retaining ring is mounted on the outer surface of the mounting bolt near one side, a mounting opening is provided on the top and bottom of the retaining ring, a fixed disk is fixedly connected to the opposite side of the mounting opening, a connecting bolt is mounted on the other end of the fixing disk via a reset spring, and a movable block is fixedly connected to the other end of the connecting bolt;

[0009] A self-locking shell is installed on one side of the high-voltage vacuum switch body near the bottom, a self-locking opening is provided on the back of the self-locking shell, both sides of the inner wall of the self-locking opening are fixedly connected to a sliding rod through a fixing block, the outer surface of the sliding rod near one end is fixedly connected to a limit ring, the outer surface of the sliding rod near the other end is slidably connected to an auxiliary ring through a slip ring, a self-locking assembly is installed on one side of the high-voltage vacuum switch body near the top, and a plurality of arc extinguishing chambers are installed on the top of the high-voltage vacuum switch body;

[0010] Position reference of the retaining ring Figure 1 The movable block can be inserted between the limit ring and the auxiliary ring to self-lock the gate shaft. For the specific working method, please refer to the working principle. The structure inside the self-locking component and the self-locking shell is the same, but the direction of the self-locking port is different.

[0011] Preferably, a contact block is installed on one side of the high-voltage vacuum switch body near the top and bottom, and a contact sensor is installed on the top and bottom of the fixing ring near the front through a mounting base;

[0012] The mounting base has a certain rebound space, and the contact sensor and the contact block are positioned correspondingly.

[0013] Preferably, a storage box is installed on one side of the high-voltage vacuum switch body, and a box door is rotatably connected to one side of the storage box;

[0014] The equipment working with the contact sensor is installed inside the placement box.

[0015] Preferably, the buffer chassis includes a mounting plate, the top of the mounting plate is provided with openings near the four corners, and a fixing plate is mounted on the top of the mounting plate via a buffer block;

[0016] The top of the fixing plate is connected to the bottom of the high-voltage vacuum switch body.

[0017] Preferably, a support spring is fixedly connected to the middle position of the other side of the inner wall of the self-locking housing via a fixing plate, and a contact plate is installed at the other end of the support spring;

[0018] The contact piece is connected to one side of the clamping ring, and the movement of the clamping ring can be assisted by a supporting spring.

[0019] Preferably, one side of the high-voltage vacuum switch body is fixedly connected to a clamping plate at the front and back sides, and the top and bottom of the clamping plate are fixedly connected to magnets.

[0020] Preferably, a protective cover is provided on one side of the high-voltage vacuum switch body, and a handle is installed on the other side of the protective cover;

[0021] The position where the protective cover contacts the card plate is provided with an iron sheet and a magnet for attraction.

[0022] Compared with the related art, the self-locking mechanism for high-voltage vacuum switch provided by the present invention has the following advantages:

[0023] Beneficial effects:

[0024] The utility model provides a self-locking mechanism for a high-voltage vacuum switch. In order to enable the high-voltage vacuum switch gate to be self-locked when opening and closing to increase safety, a fixing ring is installed on the outer surface of the gate shaft of the high-voltage vacuum switch body, and a retaining ring of a mounting port is installed on the opposite side of the fixing ring through a mounting bolt. Then, it is only necessary to install the movable block on the opposite side of the retaining ring through a reset spring. The movable block cooperates with the limit ring to self-lock the gate shaft after opening and closing, and a self-locking shell and a self-locking component are installed on one side of the high-voltage vacuum switch body, and the two limit rings are installed on the front and back sides of the inner wall of the self-locking shell through a sliding rod and a fixed block, and an auxiliary ring is slidably connected to the side of the outer surface of the sliding rod close to the fixed block through a slip ring, which can assist the movable block to disengage from the limit ring, so as to release the self-locking. Through this structure, the gate shaft on the high-voltage vacuum switch body can be self-locked in both directions, which can increase the safety of the high-voltage vacuum switch body after opening and closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a first embodiment of a self-locking mechanism for a high-voltage vacuum switch provided by the present utility model;

[0026] Figure 2 Provides a structural diagram of the installation bolt for the utility model;

[0027] Figure 3 Provides a structural diagram of a connecting bolt for the utility model;

[0028] Figure 4 Provides a structural schematic diagram of the contact block for the utility model;

[0029] Figure 5 A structural diagram of a second embodiment of the self-locking mechanism for a high-voltage vacuum switch provided by the utility model;

[0030] Figure 6 The utility model provides a structural schematic diagram of a magnet.

[0031] Numbers in the figure: 1. Buffer base frame, 101. Mounting plate, 102. Fixed plate, 103. Buffer block, 104. Through-mouth, 2. High-voltage vacuum switch body, 3. Arc extinguishing chamber, 4. Mounting bolt, 5. Fixed ring, 6. Soft sleeve, 7. Gate shaft, 8. Self-locking shell, 9. Box door, 10. Placement box, 11. Gate head, 12. Self-locking assembly, 13. Fixed block, 14. Slip ring, 15. Auxiliary ring, 16. Limiting ring, 17. Slide rod, 18. Magnet, 19. Snap ring, 20. Self-locking mouth, 21. Contact piece, 22. Fixed piece, 23. Support spring, 24. Reset spring, 25. Movable block, 26. Connecting bolt, 27. Mounting mouth, 28. Fixed plate, 29. Mounting base, 30. Contact block, 31. Contact sensor, 32. Card plate, 33. Protective cover, 34. Handle. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0033] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 ,in, Figure 1 A schematic structural diagram of a first embodiment of a self-locking mechanism for a high-voltage vacuum switch provided by the present utility model; Figure 2 Provides a structural diagram of the installation bolt for the utility model; Figure 3 Provides a structural diagram of a connecting bolt for the utility model; Figure 4 The utility model provides a structural diagram of the contact block. The self-locking mechanism for the high-voltage vacuum switch includes: a buffer chassis 1;

[0034] A high-voltage vacuum switch body 2 is mounted on the top of the buffer chassis 1. A gate shaft 7 is mounted on one side of the high-voltage vacuum switch body through a gate head 11. A soft sleeve 6 is provided on the outer surface of the gate shaft 7 near the other end. A fixing ring 5 is mounted on the outer surface of the gate shaft 7. The top and bottom of the fixing ring 5 are fixedly connected to a mounting bolt 4. A retaining ring 19 is installed on the outer surface of the mounting bolt 4 near one side. A mounting opening 27 is provided on the top and bottom of the retaining ring 19. A fixing disk 28 is fixedly connected to the opposite side of the mounting opening 27. A connecting bolt 26 is mounted on the other end of the fixing disk 28 through a reset spring 24. The other end of the connecting bolt 26 is fixedly connected to a movable block 25.

[0035] A self-locking shell 8 is installed on one side of the high-voltage vacuum switch body 2 near the bottom. A self-locking opening 20 is provided on the back of the self-locking shell 8. Both sides of the inner wall of the self-locking opening 20 are fixedly connected to a slide rod 17 through a fixed block 13. The outer surface of the slide rod 17 near one end is fixedly connected to a limit ring 16. The outer surface of the slide rod 17 near the other end is slidably connected to an auxiliary ring 15 through a slip ring 14. A self-locking component 12 is installed on one side of the high-voltage vacuum switch body 2 near the top. A plurality of arc extinguishing chambers 3 are installed on the top of the high-voltage vacuum switch body 2;

[0036] Position reference of fixing ring 5 Figure 1 The movable block 25 can be inserted between the limit ring 16 and the auxiliary ring 15, so that the gate shaft 7 can be self-locked. For the specific working method, please refer to the working principle. The structure inside the self-locking component 12 and the self-locking shell 8 is the same, except that the direction of the self-locking mouth 20 is different, which makes it easier for the snap ring 19 to be inserted. The other end of the slide rod 17 is connected to one side of the inner wall of the self-locking shell 8.

[0037] A contact block 30 is installed on one side of the high-voltage vacuum switch body 2 near the top and bottom, and a contact sensor 31 is installed on the top and bottom of the fixing ring 5 near the front through a mounting base 29;

[0038] The mounting base 29 has a certain rebound space, and the contact sensor 31 and the contact block 30 are positioned correspondingly. After the gate shaft 7 is opened and closed, the contact sensor 31 and the contact block 30 contact and can monitor the opening and closing status of the high-voltage vacuum switch body 2.

[0039] A storage box 10 is installed on one side of the high-voltage vacuum switch body 2, and a box door 9 is rotatably connected to one side of the storage box 10;

[0040] The box door 9 is provided with a lock, and the interior of the storage box 10 is installed with equipment that works in conjunction with the contact sensor 31.

[0041] The buffer chassis 1 includes a mounting plate 101. A through-hole 104 is formed at the top of the mounting plate 101 near the four corners. A fixing plate 102 is mounted on the top of the mounting plate 101 via a buffer block 103.

[0042] The top of the fixing plate 102 is connected to the bottom of the high-voltage vacuum switch body 2 , and the buffer block 103 is made of a material with buffering properties.

[0043] A support spring 23 is fixedly connected to the middle position of the other side of the inner wall of the self-locking housing 8 via a fixing plate 22, and a contact piece 21 is installed at the other end of the support spring 23;

[0044] The contact piece 21 is connected to one side of the snap ring 19 , and the support spring 23 can assist the snap ring 19 in moving.

[0045] The working principle of the self-locking mechanism for high-voltage vacuum switch provided by the utility model is as follows:

[0046] A fixing ring 5 is installed on the outer surface of the gate shaft 7 of the high-voltage vacuum switch body 2, and a retaining ring 19 with a mounting port 27 is installed on the opposite side of the fixing ring 5 through the mounting bolt 4. After that, it is only necessary to install the movable block 25 on the opposite side of the retaining ring 19 through the reset spring 24. The movable block 25 cooperates with the limit ring 16 to self-lock the gate shaft 7 after opening and closing. A self-locking shell 8 and a self-locking component 12 are installed on one side of the high-voltage vacuum switch body 2, and the two limit rings 16 are installed on the front and back sides of the inner wall of the self-locking shell 8 through the slide rod 17 and the fixed block 13. On the outer surface of the slide rod 17 close to the fixed block 13, an auxiliary ring 15 is slidably connected through the slip ring 14 to assist the movable block 25 to disengage from the limit ring 16, so that the self-locking can be released. In actual use When you need to open the gate, you only need to continue pressing the gate shaft 7 in the self-locking direction to allow the movable block 25 on the mounting bolt 4 to move to the side of the auxiliary ring 15. In the process of the movable block 25 passing through the auxiliary ring 15, the reset spring 24 will be compressed to allow it to pass through the auxiliary ring 15 smoothly. After the movable block 25 has completely passed through the auxiliary ring 15, you can pull the gate shaft 7 in the opposite direction, and the movable block 25 can drive the auxiliary ring 15 close to the limit ring 16. After the two are in contact, the contracted movable block 25 can be smoothly pulled out of the limit ring 16, thereby releasing the restriction on the gate shaft 7. After the gate is opened, the other mounting bolt 4 on the fixed ring 5 can be inserted into the inside of the self-locking component 12, so that the opened gate shaft 7 can be self-locked. When you need to close the gate, you only need to install it in the same way to release the self-locking.

[0047] Compared with the related art, the self-locking mechanism for high-voltage vacuum switch provided by the present invention has the following advantages:

[0048] Beneficial effects:

[0049] In order to make the high-voltage vacuum switch gate self-locking when opening and closing to increase safety, a fixing ring 5 is installed on the outer surface of the gate shaft 7 of the high-voltage vacuum switch body 2, and a retaining ring 19 with a mounting port 27 is installed on the opposite side of the fixing ring 5 through the mounting bolt 4. Then, it is only necessary to install the movable block 25 on the opposite side of the retaining ring 19 through the reset spring 24. By cooperating with the limit ring 16, the gate shaft 7 can be self-locked after opening and closing. A self-locking shell 8 and a self-locking assembly 12 are installed on one side of the high-voltage vacuum switch body 2, and the two limit rings 16 are installed on the front and back sides of the inner wall of the self-locking shell 8 through the slide rod 17 and the fixed block 13. On the outer surface of the slide rod 17 close to the fixed block 13, an auxiliary ring 15 is slidably connected through the slip ring 14, which can assist the movable block 25 to disengage from the limit ring 16, so as to release the self-locking. Through this structure, the gate shaft 7 on the high-voltage vacuum switch body 2 can be self-locked in both directions, which can increase the safety of the high-voltage vacuum switch body 2 after opening and closing.

[0050] Second embodiment

[0051] Please refer to Figure 5-Figure 6 , Figure 5 A structural diagram of a second embodiment of the self-locking mechanism for a high-voltage vacuum switch provided by the utility model; Figure 6 This utility model provides a schematic diagram of the structure of a magnet. Based on the self-locking mechanism for a high-voltage vacuum switch provided in the first embodiment of this application, the second embodiment of this application provides another self-locking mechanism for a high-voltage vacuum switch. The second embodiment is merely a preferred embodiment of the first embodiment, and implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0052] Specifically, the self-locking mechanism for a high-voltage vacuum switch provided in the second embodiment of the present application is different in that a clamping plate 32 is fixedly connected to the front and back sides of the high-voltage vacuum switch body 2, and a magnet 18 is fixedly connected to the top and bottom of the clamping plate 32;

[0053] The magnet 18 is flush with the card plate 32. The position and shape of the card plate 32 refer to Figure 6 .

[0054] A protective cover 33 is provided on one side of the high-voltage vacuum switch body 2, and a handle 34 is installed on the other side of the protective cover 33;

[0055] An iron sheet and a magnet 18 are provided at the contact position between the protective cover 33 and the clamping plate 32 to attract each other, thereby increasing the stability of the connection of the protective cover 33.

[0056] Compared with the related art, the self-locking mechanism for high-voltage vacuum switch provided by the present invention has the following advantages:

[0057] Beneficial effects:

[0058] In order to increase the protection of the self-locking component 12 and the gate shaft 7, a card plate 32 with a magnet 18 is installed on one side of the high-voltage vacuum switch body 2 near the front and back, and the magnet 18 is located at the top and bottom of the card plate 32, which is convenient for fitting with the iron sheet at the contact position of the protective cover 33, which can increase the stability of the connection. After the high-voltage vacuum switch body 2 is opened and closed, it is only necessary to insert the protective cover 33 into the two card plates 32 to completely cover one side of the high-voltage vacuum switch body 2, thereby increasing the protection of the structure on one side of the high-voltage vacuum switch body 2.

[0059] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A self-locking mechanism for a high-voltage vacuum switch, characterized in that: include: Buffer chassis; A high-voltage vacuum switch body, the high-voltage vacuum switch body is mounted on the top of the buffer chassis, a gate shaft is mounted on one side of the high-voltage vacuum switch body through a gate head, a soft sleeve is provided on the outer surface of the gate shaft near the other end, a fixing ring is mounted on the outer surface of the gate shaft, the top and bottom of the fixing ring are fixedly connected to mounting bolts, a retaining ring is mounted on the outer surface of the mounting bolt near one side, a mounting opening is provided on the top and bottom of the retaining ring, a fixed disk is fixedly connected to the opposite side of the mounting opening, a connecting bolt is mounted on the other end of the fixing disk via a reset spring, and a movable block is fixedly connected to the other end of the connecting bolt; A self-locking shell is installed on one side of the high-voltage vacuum switch body near the bottom, a self-locking opening is provided on the back of the self-locking shell, both sides of the inner wall of the self-locking opening are fixedly connected with sliding rods through fixed blocks, the outer surface of the sliding rod near one end is fixedly connected with a limiting ring, the outer surface of the sliding rod near the other end is slidably connected with an auxiliary ring through a slip ring, a self-locking component is installed on one side of the high-voltage vacuum switch body near the top, and multiple arc extinguishing chambers are installed on the top of the high-voltage vacuum switch body.

2. The self-locking mechanism for a high-voltage vacuum switch according to claim 1, characterized in that: A contact block is installed on one side of the high-voltage vacuum switch body near the top and bottom, and a contact sensor is installed on the top and bottom of the fixing ring near the front through a mounting base.

3. The self-locking mechanism for a high-voltage vacuum switch according to claim 1, characterized in that: A placement box is installed on one side of the high-voltage vacuum switch body, and a box door is rotatably connected to one side of the placement box.

4. The self-locking mechanism for a high-voltage vacuum switch according to claim 1, characterized in that: The buffer chassis includes a mounting plate, the top of the mounting plate is provided with through-holes near the four corners, and a fixing plate is installed on the top of the mounting plate through a buffer block.

5. The self-locking mechanism for a high-voltage vacuum switch according to claim 1, characterized in that: A support spring is fixedly connected to the middle position of the other surface of the inner wall of the self-locking housing via a fixing plate, and a contact plate is installed at the other end of the support spring.

6. The self-locking mechanism for a high-voltage vacuum switch according to claim 1, characterized in that: A clamping plate is fixedly connected to the front and back sides of one side of the high-voltage vacuum switch body, and a magnet is fixedly connected to the top and bottom of the clamping plate.

7. The self-locking mechanism for a high-voltage vacuum switch according to claim 1, characterized in that: A protective cover is provided on one side of the high-voltage vacuum switch body, and a handle is installed on the other side of the protective cover.

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