Direct-current vacuum load switch for switching without power failure

Abstract

The utility model provides a direct current vacuum load switch for switching without power outage, which comprises a direct current vacuum load switch body and a telegraph pole, the direct current vacuum load switch body (1) is arranged at one side of the telegraph pole, a frame is fixedly arranged at the bottom of the direct current vacuum load switch body (1), and one side of the frame is fixedly connected with a support plate. The utility model relates to the technical field of DC vacuum load switches. According to the direct-current vacuum load switch for switching without power failure, the clamping mechanism is arranged, a frame at the bottom of the direct-current vacuum load switch body can be moved to enable a telegraph pole to be located between two clamping blocks, then a screwing block is reversely rotated, and an external thread on the surface of a threaded rod extrudes an internal thread of a threaded hole; when the direct-current vacuum load switch body is fixed, the two moving blocks move towards the sides close to each other, the connecting blocks and the clamping blocks are driven to move towards the telegraph pole at the same time, the telegraph pole is clamped through the two clamping blocks, and therefore the direct-current vacuum load switch body is fixed, and the effect of facilitating installation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of DC vacuum load switch technology, specifically a DC vacuum load switch for uninterrupted switching. Background Technology

[0002] A DC vacuum load switch is a type of switching device that falls between a circuit breaker and a disconnector. It typically includes a simple arc-extinguishing device, but its structure is relatively simple. Its operation is as follows: When the circuit is open, the main shaft rotates clockwise under the action of the opening spring. This rotation, on one hand, causes the piston to move upwards via a crank-slider mechanism, compressing the gas; on the other hand, a transmission system consisting of two sets of four-bar linkages causes the main switch to open first, then pushes the arc-extinguishing switch to open the arc contact. The compressed air in the cylinder extinguishes the arc through the nozzle.

[0003] The indoor high-voltage vacuum load switch disclosed in publication number "CN219393249U" includes a base, a frame and a manual pneumatic mechanism on the top of the base. The frame is rectangular, and three top rods are provided on the top edge of the frame. Each of the three top rods is rotatably mounted with an insulated hollow rod. The bottom end of the insulated hollow rod is connected to a conductive head structure. Three electrical connection structures are provided on the bottom edge of the frame. The conductive head structure is compatible with the electrical connection structure. Two horizontal rods are provided inside the frame. Three spring-tensioned power-connecting mechanisms and three vacuum pneumatic power-off mechanisms are respectively provided on the two horizontal rods. Each of the three vacuum pneumatic power-off mechanisms is connected to a rubber tube, and each of the three rubber tubes is connected to the manual pneumatic mechanism. The spring-tensioned power-connecting mechanism includes a spring rod, which is rotatably mounted on the horizontal rod. The spring rod has a tension spring groove.

[0004] However, the above-mentioned device still has the following problems during implementation:

[0005] When using DC vacuum load switches, they are usually installed on utility poles, which involves working at heights. They are typically fixed with bolts, requiring a large number of tools, which increases the difficulty of installation and reduces the practicality of the DC vacuum load switch. Utility Model Content

[0006] The purpose of this invention is to provide a DC vacuum load switch for uninterruptible switching to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A DC vacuum load switch for uninterruptible switching includes a DC vacuum load switch body and a utility pole. The DC vacuum load switch body is located on one side of the utility pole. A frame is fixedly installed at the bottom of the DC vacuum load switch body. A support plate is fixedly connected to one side of the frame. Two transmission blocks are provided on one side of the support plate. Two dovetail sliders are fixedly connected to one side of the transmission blocks. A dovetail groove that cooperates with the dovetail sliders is provided on one side of the support plate. A clamping mechanism is provided inside the transmission block. An adjustment mechanism is provided on the top of the transmission block.

[0009] The clamping mechanism includes a threaded rod disposed inside the transmission block. A movable block is connected to the surface of the threaded rod. A connecting block is fixedly connected to one side of the movable block. One side of the connecting block extends through to one side of the transmission block and is fixedly connected to a clamping block. A threaded hole for cooperating with the threaded rod is opened on one side of the movable block. One end of the threaded rod extends through to the outside of the transmission block and is fixedly connected to a screwing block. Two screwing grooves are symmetrically opened on the circumferential side of the screwing block.

[0010] Preferably, the adjusting mechanism includes a housing fixedly connected to the top of the transmission block, a movable block is provided inside the housing, a positioning rod is fixedly connected to one side of the movable block, a positioning hole for cooperating with the positioning rod is provided on one side of the support plate, a traction rod is fixedly connected to the top of the movable block, the top of the traction rod extends through to the top of the housing and is fixedly connected to the traction block.

[0011] Preferably, a spring is fixedly connected to one side of the movable block, and one end of the spring is fixedly connected to the inner wall of the housing.

[0012] Preferably, the number of positioning holes is several, and they are evenly distributed on one side of the support plate.

[0013] Preferably, the clamping block is arc-shaped, and a rubber pad is fixedly connected to the side closest to the utility pole.

[0014] Preferably, one end of the threaded rod is provided with a bearing, and is rotatably connected to the inner wall of the transmission block through the bearing.

[0015] Preferably, guide blocks are fixedly connected to the top and bottom of the moving block, and guide grooves that cooperate with the guide blocks are provided on the inner wall of the transmission block.

[0016] Preferably, the two threaded holes are opposite threads to each other.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, by setting a clamping mechanism, allows the screwing block to be rotated clockwise, causing the threaded rod to rotate around the bearing. When the threaded rod rotates, the external thread on its surface presses against the internal thread of the threaded hole, causing the two moving blocks to move away from each other along the trajectory of the guide block and guide groove. This causes the moving blocks to move the connecting block and clamping block, ensuring that the space between the two clamping blocks is sufficient to accommodate the utility pole. Then, the frame at the bottom of the DC vacuum load switch body is moved so that the utility pole is positioned between the two clamping blocks. Afterward, the screwing block is rotated in the opposite direction, reversing the above steps. The external thread on the surface of the threaded rod presses against the internal thread of the threaded hole, causing the two moving blocks to move closer to each other. At the same time, this causes the connecting block and clamping block to move closer to the utility pole. The utility pole is clamped by the two clamping blocks, thus completing the fixation of the DC vacuum load switch body and facilitating installation.

[0019] 2. This utility model, by setting an adjustment mechanism, can move the traction block forward, causing the traction rod and movable block to move forward. This allows the movable block to move the positioning rod away from the inside of the positioning hole, releasing the restriction on the housing. Then, the position of the transmission block and the clamping mechanism can be adjusted up and down along the trajectory of the dovetail slider and the dovetail groove. After reaching the appropriate position, the traction block is released, and the elastic force generated by the spring will push the movable block and the positioning rod backward, allowing the positioning rod to enter the corresponding positioning hole. This completes the adjustment of the clamping position of the clamping mechanism, preventing it from being clamped in the recessed area of ​​the utility pole and improving the stability of the clamping. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a perspective view of a partial structure of the clamping mechanism and the adjusting mechanism of this utility model;

[0022] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a perspective view of a partial structure of the adjustment mechanism of this utility model;

[0024] Figure 5 This is a perspective view of a partial structure of the clamping mechanism of this utility model.

[0025] In the diagram: 1. DC vacuum load switch body; 2. Pole; 3. Frame; 4. Support plate; 5. Transmission block; 6. Dovetail slider; 7. Dovetail groove; 8. Threaded rod; 9. Moving block; 10. Connecting block; 11. Clamping block; 12. Threaded hole; 13. Tightening block; 14. Tightening groove; 15. Housing; 16. Movable block; 17. Positioning rod; 18. Positioning hole; 19. Traction rod; 20. Traction block; 21. Spring; 22. Rubber pad; 23. Bearing; 24. Guide block; 25. Guide groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model provides a technical solution:

[0028] Example 1:

[0029] A DC vacuum load switch for uninterruptible switching includes a DC vacuum load switch body 1 and a utility pole 2. The DC vacuum load switch body 1 is located on one side of the utility pole 2. A frame 3 is fixedly installed at the bottom of the DC vacuum load switch body 1. A support plate 4 is fixedly connected to one side of the frame 3. Two transmission blocks 5 are provided on one side of the support plate 4. Two dovetail sliders 6 are fixedly connected to one side of the transmission blocks 5. A dovetail groove 7 that cooperates with the dovetail sliders 6 is provided on one side of the support plate 4. A clamping mechanism is provided inside the transmission block 5. An adjustment mechanism is provided on the top of the transmission block 5.

[0030] The clamping mechanism includes a threaded rod 8 disposed inside the transmission block 5. A movable block 9 is connected to the surface of the threaded rod 8. A connecting block 10 is fixedly connected to one side of the movable block 9. One side of the connecting block 10 extends through to one side of the transmission block 5 and is fixedly connected to a clamping block 11. A threaded hole 12 for cooperating with the threaded rod 8 is opened on one side of the movable block 9. One end of the threaded rod 8 extends through to the outside of the transmission block 5 and is fixedly connected to a screwing block 13. Two screwing grooves 14 are symmetrically opened on the circumferential side of the screwing block 13.

[0031] In this embodiment, considering that the DC vacuum load switch body 1 is generally installed on a utility pole 2 during use, which involves high-altitude work and is usually fixed with bolts, requiring a large number of tools and increasing the difficulty of installation, a clamping mechanism is set up. By rotating the screwing block 13 clockwise, the screwing block 13 will drive the threaded rod 8 to rotate around the bearing 23. When the threaded rod 8 rotates, the external thread on its surface will press against the internal thread of the threaded hole 12, causing the two moving blocks 9 to move along the trajectory of the guide block 24 and the guide groove 25 to move to the side away from each other, so that the moving blocks 9 will... When the moving connecting block 10 and clamping block 11 move to make the space between the two clamping blocks 11 sufficient to accommodate the electric pole 2, the frame 3 at the bottom of the DC vacuum load switch body 1 is moved so that the electric pole 2 is located between the two clamping blocks 11. Then, the screwing block 13 is rotated in the opposite direction. The external thread on the surface of the threaded rod 8 presses against the internal thread of the threaded hole 12, which causes the two moving blocks 9 to move towards each other. At the same time, the connecting block 10 and clamping block 11 are driven to move closer to the electric pole 2. The electric pole 2 is clamped by the two clamping blocks 11, thereby completing the fixation of the DC vacuum load switch body 1 and facilitating installation.

[0032] This solves the problem that DC vacuum load switches are typically installed on utility poles, which involves working at heights and is usually secured with bolts, requiring a large number of tools and increasing the difficulty of installation.

[0033] The clamping block 11 is arc-shaped, and a rubber pad 22 is fixedly connected to the side closest to the utility pole 2.

[0034] In this embodiment, by setting a rubber pad 22, the friction of clamping can be increased when the two clamping blocks 11 are clamped on the surface of the utility pole 2, thereby improving the stability of the DC vacuum load switch body 1 during installation.

[0035] One end of the threaded rod 8 is provided with a bearing 23, and is rotatably connected to the inner wall of the transmission block 5 through the bearing 23.

[0036] In this embodiment, by setting the bearing 23, the threaded rod 8 can be supported, allowing it to rotate, while improving the smoothness of its rotation process.

[0037] Guide blocks 24 are fixedly connected to the top and bottom of the moving block 9, and guide grooves 25 that cooperate with guide blocks 24 are opened on the inner wall of the transmission block 5.

[0038] In this embodiment, by setting guide block 24 and guide groove 25, when the threaded rod 8 rotates to transmit power to the moving block 9, the moving block 9 and other structures can only move along the trajectory of guide block 24 and guide groove 25, thereby improving the stability of its movement process.

[0039] Preferably, the two threaded holes 12 have opposite threads.

[0040] In this embodiment, by setting the threaded holes 12 to have opposite threads, when the threaded rod 8 rotates clockwise, the two moving blocks 9 can move to the side away from each other, and when the threaded rod 8 rotates counterclockwise, the two moving blocks 9 can move to the side closer to each other.

[0041] Example 2:

[0042] Based on Embodiment 1, the clamping mechanism in this embodiment facilitates the installation of the DC vacuum load switch body 1 onto the utility pole 2. However, considering that there may be recessed areas on the surface of the utility pole 2, clamping in this area would also affect the stability of the DC vacuum load switch body 1 installation. In this application, the adjustment mechanism includes a housing 15 fixedly connected to the top of the transmission block 5. A movable block 16 is provided inside the housing 15. A positioning rod 17 is fixedly connected to one side of the movable block 16. A positioning hole 18 that cooperates with the positioning rod 17 is opened on one side of the support plate 4. A traction rod 19 is fixedly connected to the top of the movable block 16. The top of the traction rod 19 extends through to the top of the housing 15 and is fixedly connected to a traction block 20.

[0043] In this embodiment, considering that there may be a recessed area on the surface of the utility pole 2, if it is clamped in this area, it will also affect the stability of the DC vacuum load switch body 1. Therefore, by setting an adjustment mechanism, the traction block 20 can be pushed forward to drive the traction rod 19 and the movable block 16 to move forward, so that the movable block 16 drives the positioning rod 17 away from the inside of the positioning hole 18, releasing the restriction on the housing 15. Then, the position of the transmission block 5 and the clamping mechanism can be adjusted up and down along the trajectory of the dovetail slider 6 and the dovetail groove 7. After reaching the appropriate position, the traction block 20 is released, and the elastic force generated by the spring 21 will push the movable block 9 and the positioning rod 17 to move backward, so that the positioning rod 17 enters the corresponding positioning hole 18, completing the adjustment of the clamping position of the clamping mechanism, so that it will not be clamped in the recessed area on the utility pole 2, thus improving the clamping stability.

[0044] This solves the problem that if the surface of the utility pole 2 has a recessed area, clamping it in this area will also affect the installation stability of the DC vacuum load switch body 1.

[0045] A spring 21 is fixedly connected to one side of the movable block 16, and one end of the spring 21 is fixedly connected to the inner wall of the housing 15.

[0046] In this embodiment, by setting a spring 21, when the traction block 20 is released, the elastic force generated by the spring 21 can push the movable block 16 and the positioning rod 17 to reset, so that the positioning rod 17 can accurately enter the positioning hole 18.

[0047] The number of positioning holes 18 is several, and they are evenly distributed on one side of the support plate 4.

[0048] In this embodiment, by setting a number of positioning holes 18, after the height of the transmission block 5 and the clamping mechanism is adjusted, the positioning rod 17 can be inserted into the corresponding positioning hole 18 to fix the transmission block 5 and the clamping mechanism, thereby improving the adjustment speed.

[0049] Working principle: The user rotates the screwing block 13 clockwise, which causes the threaded rod 8 to rotate around the bearing 23. When the threaded rod 8 rotates, the external thread on its surface presses against the internal thread of the threaded hole 12, causing the two moving blocks 9 to move away from each other along the trajectory of the guide block 24 and the guide groove 25. This causes the moving blocks 9 to move the connecting block 10 and the clamping block 11. When the space between the two clamping blocks 11 is large enough to accommodate the electric pole 2, the frame 3 at the bottom of the DC vacuum load switch body 1 is moved so that the electric pole 2 is located between the two clamping blocks 11. Then, the screwing block 13 is rotated in the opposite direction, and the external thread on the surface of the threaded rod 8 presses against the internal thread of the threaded hole 12, causing the two moving blocks 9 to move closer to each other. At the same time, the connecting block 10 and the clamping block 11 move closer to the electric pole 2. The electric pole 2 is clamped by the two clamping blocks 11, thus completing the fixation of the DC vacuum load switch body 1 and facilitating installation.

[0050] Considering that there may be recessed areas on the surface of the utility pole 2, clamping in this area would affect the stability of the DC vacuum load switch body 1. By pushing the traction block 20 forward, the traction rod 19 and the movable block 16 can be moved forward, causing the movable block 16 to move the positioning rod 17 away from the interior of the positioning hole 18, thus releasing the restriction on the housing 15. Then, the position of the transmission block 5 and the clamping mechanism can be adjusted up and down along the trajectory of the dovetail slider 6 and the dovetail groove 7. After reaching the appropriate position, the traction block 20 is released, and the elastic force generated by the spring 21 will push the movable block 9 and the positioning rod 17 backward, so that the positioning rod 17 enters the interior of the corresponding positioning hole 18, completing the adjustment of the clamping position of the clamping mechanism, so that it will not be clamped in the recessed area on the utility pole 2, thus improving the clamping stability.

[0051] It should be noted that the DC vacuum load switch body 1 is a device or equipment existing in the prior art, or a device or equipment that can be implemented by the prior art, and the specific composition and principle of the power supply of the DC vacuum load switch body 1 are clear to those skilled in the art, so they will not be described in detail.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A DC vacuum load break switch for switching without interruption, comprising a DC vacuum load break switch body (1) and a pole (2), the DC vacuum load break switch body (1) being located on one side of the pole (2), characterized in that: The bottom of the direct current vacuum load switch body (1) is fixedly installed with a frame (3), one side of the frame (3) is fixedly connected with a supporting plate (4), one side of the supporting plate (4) is provided with two transmission blocks (5), one side of the transmission block (5) is fixedly connected with two dovetail sliding blocks (6), one side of the supporting plate (4) is provided with a dovetail sliding groove (7) matched with the dovetail sliding block (6), the inside of the transmission block (5) is provided with a clamping mechanism, and the top of the transmission block (5) is provided with an adjusting mechanism. The clamping mechanism comprises a threaded rod (8) arranged in the transmission block (5), the surface of the threaded rod (8) is in transmission connection with a moving block (9), one side of the moving block (9) is fixedly connected with a connecting block (10), one side of the connecting block (10) penetrates to one side of the transmission block (5), and is fixedly connected with a clamping block (11), one side of the moving block (9) is provided with a threaded hole (12) matched with the threaded rod (8), one end of the threaded rod (8) penetrates to the outside of the transmission block (5), and is fixedly connected with a screwing block (13), and the circumferential side of the screwing block (13) is symmetrically provided with two screwing grooves (14).

2. The DC vacuum load break switch for switching without power interruption according to claim 1, characterized in that The adjusting mechanism comprises a housing (15) fixedly connected to the top of the transmission block (5), the inside of the housing (15) is provided with a movable block (16), one side of the movable block (16) is fixedly connected with a positioning rod (17), one side of the supporting plate (4) is provided with a positioning hole (18) matched with the positioning rod (17), the top of the movable block (16) is fixedly connected with a traction rod (19), the top of the traction rod (19) penetrates to the top of the housing (15), and is fixedly connected with a traction block (20).

3. The DC vacuum load break switch for switching without interruption according to claim 2, characterized in that One side of the movable block (16) is fixedly connected with a spring (21), and one end of the spring (21) is fixedly connected with the inner wall of the housing (15).

4. The DC vacuum load break switch for switching without interruption according to claim 2, characterized in that: The number of the positioning holes (18) is several, and they are evenly distributed on one side of the supporting plate (4).

5. The DC vacuum load break switch for switching without interruption according to claim 1, characterized in that: The clamping block (11) is arc-shaped, and one side close to the electric pole (2) is fixedly connected with a rubber pad (22).

6. The DC vacuum load break switch for switching without interruption according to claim 1, characterized in that: One end of the threaded rod (8) is provided with a bearing (23), and is rotationally connected with the inner wall of the transmission block (5) through the bearing (23).

7. The DC vacuum load break switch for switching without interruption according to claim 1, characterized in that: The top and bottom of the moving block (9) are fixedly connected with guide blocks (24), and the inner wall of the transmission block (5) is provided with guide grooves (25) matched with the guide blocks (24).

8. The DC vacuum load break switch for switching without interruption according to claim 1, characterized in that: The two threaded holes (12) are reverse threads.

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