Vacuum circuit breaker for switch cabinet

Abstract

The utility model relates to the technical field of vacuum switches, and discloses a vacuum circuit breaker for a switch cabinet, which comprises a fixed base, the front side and the rear side of the fixed base are both fixedly connected with two fixed plates, the four fixed plates are all provided with fixed bolts, the fixed base is internally provided with a first connecting groove, and the fixed base is internally provided with a second connecting groove. The top wall of the first connecting groove extends out of the fixed base, a second connecting groove is formed in the left wall of the first connecting groove, the left wall of the second connecting groove extends out of the fixed base, a limiting block is slidably connected into the first connecting groove, and the left side of the limiting block is fixedly connected with a circuit breaker body. The left side of the circuit breaker body extends out of the fixing base through the second connecting groove, the fixing base is provided with the clamping mechanism, and in this way, the circuit breaker body can be disassembled without disassembling bolts, so that disassembling of the circuit breaker body becomes simple and rapid, and the disassembling efficiency of the circuit breaker body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum switches, in particular to a vacuum circuit breaker for switch cabinets. Background Art

[0002] "Vacuum circuit breaker" gets its name because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; it has the advantages of small volume, light weight, being suitable for frequent operation, and no need for maintenance of arc extinguishing, and is widely used in the distribution network. The vacuum circuit breaker is an indoor power distribution device in a 3 - 10kV, 50Hz three - phase AC system, and can be used for the protection and control of electrical equipment in industrial and mining enterprises, power plants, and substations, especially suitable for places that require oil - free, less maintenance, and frequent operation.

[0003] Currently, most vacuum circuit breakers are installed by bolt connection, which leads to a cumbersome disassembly and assembly process. A long time is spent on bolts during disassembly and installation, reducing the disassembly and assembly efficiency of the vacuum circuit breaker. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a vacuum circuit breaker for switch cabinets, which has the function of being able to complete the disassembly of the vacuum circuit breaker without disassembling and assembling bolts, thereby making the disassembly and assembly of the vacuum circuit breaker simple and fast, and improving the disassembly and assembly efficiency of the vacuum circuit breaker.

[0006] (II) Technical Solutions

[0007] To achieve the above - mentioned purpose, the utility model provides the following technical solutions: A vacuum circuit breaker for switch cabinets includes a fixed base. A first connection groove is opened inside the fixed base, and the top wall of the first connection groove extends out of the fixed base. A second connection groove is opened on the left wall of the first connection groove;

[0008] The left wall of the second connection groove extends out of the fixed base, and a limiting block is slidably connected inside the first connection groove;

[0009] A circuit breaker body is fixedly connected to the left side of the limiting block. The left side of the circuit breaker body extends out of the fixed base through the second connection groove. A clamping mechanism is arranged on the fixed base, and the limiting block can be limited through the clamping mechanism;

[0010] The clamping mechanism includes a sliding groove, a sliding clamping block, a spring, two control sliding grooves, two control blocks, and a connecting rod.

[0011] Preferably, two fixing plates are fixedly connected to the front side and the rear side of the fixed base, and fixing bolts are arranged on the four fixing plates. The fixed base can be fixed on the switch cabinet through the fixing bolts.

[0012] Preferably, the sliding groove is formed inside the fixed base and is located above the limiting block;

[0013] The right wall of the sliding groove extends beyond the right wall of the first connecting groove, and the left wall of the sliding groove extends beyond the left wall of the first connecting groove.

[0014] Preferably, the sliding block is slidably connected inside the sliding groove, and the sliding block can block the limiting block;

[0015] The spring is fixedly connected to the right side of the sliding block, and the right end of the spring is fixedly connected to the right wall of the sliding groove.

[0016] Preferably, the two control sliding grooves are both formed on the top wall of the sliding groove, and the top walls of the two control sliding grooves extend out of the fixed base;

[0017] The two control sliding grooves are arranged front and back, and the two control blocks are both fixedly connected to the upper side of the sliding block.

[0018] Preferably, the upper sides of the two control blocks extend out of the fixed base through the two control sliding grooves, and the connecting rod is arranged between the two control blocks;

[0019] The front side and the rear side of the connecting rod are respectively fixedly connected to the opposite surfaces of the two control blocks, and the connecting rod is arranged above the fixed base.

[0020] (3) Beneficial effects

[0021] Compared with the prior art, the present utility model provides a vacuum circuit breaker for a switch cabinet, which has the following beneficial effects:

[0022] (1) For this vacuum circuit breaker for a switch cabinet, when the connecting rod is pushed to the right, the connecting rod drives the two control blocks to move synchronously. After transmission, the limiting state of the sliding block to the first connecting groove is released. Then, the limiting block is aligned with the first connecting groove and moved downward. After moving to the bottoms of the first connecting groove and the second connecting groove, it stops. At this time, the limiting block moves to the lower side of the sliding block, and then the spring starts to reset from the compressed state. After transmission, the sliding block will limit and fix the limiting block. When it is necessary to disassemble the circuit breaker body, it can be disassembled according to the above method. In this way, when disassembling the circuit breaker body, it is not necessary to disassemble and assemble the bolts, which makes the disassembly and assembly of the circuit breaker body simple and fast, and improves the disassembly and assembly efficiency of the circuit breaker body.

[0023] (2) The vacuum circuit breaker for the switch cabinet has two control chutes both opened on the top wall of the sliding chute. The top walls of the two control chutes extend out of the fixed base. The upper sides of the two control blocks extend out of the fixed base through the two control chutes. The connecting rod is arranged between the two control blocks, and the front side and the rear side of the connecting rod are respectively fixedly connected to the opposite surfaces of the two control blocks. The way that the connecting rod is arranged on the upper side of the fixed base enables the control of the clamping state of the clamping mechanism only by pushing the upper part, making the control of the clamping mechanism more convenient. Description of the Drawings

[0024] Figure 1 Schematic diagram of the structure of a vacuum circuit breaker for a switch cabinet of the present utility model;

[0025] Figure 2 Schematic diagram of the connection structure of the circuit breaker body of the present utility model;

[0026] Figure 3 Schematic diagram of the cross-sectional connection structure of the fixed base of the present utility model;

[0027] Figure 4 is Figure 3 Enlarged schematic diagram at A of

[0028] In the figure: 1, fixed base; 2, fixed plate; 3, fixed bolt; 4, first connection groove; 5, second connection groove; 6, limit block; 7, circuit breaker body; 8, sliding chute; 9, sliding block; 10, spring; 11, control chute; 12, control block; 13, connecting rod. Detailed Embodiment

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figures 1 to 4, the present utility model provides a new technical solution: a vacuum circuit breaker for a switch cabinet, which includes a fixed base 1. Both the front side and the rear side of the fixed base 1 are fixedly connected with two fixing plates 2. Fixing bolts 3 are arranged on all four fixing plates 2. Through the fixing bolts 3, the fixed base 1 can be fixed on the switch cabinet. A first connection groove 4 is opened inside the fixed base 1. The top wall of the first connection groove 4 extends out of the fixed base 1. A second connection groove 5 is opened on the left wall of the first connection groove 4. The left wall of the second connection groove 5 extends out of the fixed base 1. A limiting block 6 is slidably connected inside the first connection groove 4. A circuit breaker body 7 is fixedly connected to the left side of the limiting block 6. The left side of the circuit breaker body 7 extends out of the fixed base 1 through the second connection groove 5. A clamping mechanism is arranged on the fixed base 1. Through the clamping mechanism, the limiting block 6 can be limited. The clamping mechanism includes a sliding groove 8, a sliding clamping block 9, a spring 10, two control sliding grooves 11, two control blocks 12 and a connecting rod 13.

[0031] Further, the sliding groove 8 is opened inside the fixed base 1. The sliding groove 8 is arranged above the limiting block 6. The right wall of the sliding groove 8 extends past the right wall of the first connection groove 4. The left wall of the sliding groove 8 extends past the left wall of the first connection groove 4. The sliding clamping block 9 is slidably connected inside the sliding groove 8. The sliding clamping block 9 can block the limiting block 6. The spring 10 is fixedly connected to the right side of the sliding clamping block 9. The right end of the spring 10 is fixedly connected to the right wall of the sliding groove 8. Both of the two control sliding grooves 11 are opened on the top wall of the sliding groove 8. The top walls of both of the two control sliding grooves 11 extend out of the fixed base 1. The two control sliding grooves 11 are arranged front and back. Both of the two control blocks 12 are fixedly connected to the upper side of the sliding clamping block 9. The upper sides of the two control blocks 12 extend out of the fixed base 1 through the two control sliding grooves 11. The connecting rod 13 is arranged between the two control blocks 12. The front side and the rear side of the connecting rod 13 are respectively fixedly connected to the opposite surfaces of the two control blocks 12. The connecting rod 13 is arranged above the fixed base 1.

[0032] Further, during installation, the staff connects the fixing bolt 3 to the fixing plate 2, and then thread-connects the fixing bolt 3 to the switch cabinet. Thus, the fixing base 1 can be connected to the switch cabinet. Then, push the connecting rod 13 to the right. The connecting rod 13 drives the two control blocks 12 to move synchronously. Further, the two control blocks 12 drive the sliding block 9 to move synchronously to the right. Then, the sliding block 9 moves to the right side of the sliding groove 8. At this time, the spring 10 starts to be compressed. At the same time, the sliding block 9 moves out of the first connecting groove 4. Thus, the limiting state of the sliding block 9 on the first connecting groove 4 is released. Then, align the limiting block 6 with the first connecting groove 4 and move it downward. At the same time, the circuit breaker body 7 slides in the second connecting groove 5. Wait until the limiting block 6 and the circuit breaker body 7 move to the bottoms of the first connecting groove 4 and the second connecting groove 5 and then stop. At this time, the limiting block 6 moves to the lower side of the sliding block 9. Then, the spring 10 starts to reset from the compressed state, pushing the sliding block 9 to reset. After resetting, the sliding block 9 moves into the first connecting groove 4. Thus, the sliding block 9 limits and fixes the limiting block 6. When the circuit breaker body 7 needs to be disassembled, it can be disassembled according to the above method. In this way, when disassembling the circuit breaker body 7, it is not necessary to disassemble and assemble the bolts, making the disassembly and assembly of the circuit breaker body 7 simple and fast, and improving the disassembly and assembly efficiency of the circuit breaker body 7.

[0033] Working principle: During installation, the staff connects the fixing bolt 3 to the fixing plate 2, and then thread-connects the fixing bolt 3 to the switch cabinet. Thus, the fixing base 1 can be connected to the switch cabinet. Then, push the connecting rod 13 to the right. The connecting rod 13 drives the two control blocks 12 to move synchronously. Further, the two control blocks 12 drive the sliding block 9 to move synchronously to the right. Then, the sliding block 9 moves to the right side of the sliding groove 8. At this time, the spring 10 starts to be compressed. At the same time, the sliding block 9 moves out of the first connecting groove 4. Thus, the limiting state of the sliding block 9 on the first connecting groove 4 is released. Then, align the limiting block 6 with the first connecting groove 4 and move it downward. At the same time, the circuit breaker body 7 slides in the second connecting groove 5. Wait until the limiting block 6 and the circuit breaker body 7 move to the bottoms of the first connecting groove 4 and the second connecting groove 5 and then stop. At this time, the limiting block 6 moves to the lower side of the sliding block 9. Then, the spring 10 starts to reset from the compressed state, pushing the sliding block 9 to reset. After resetting, the sliding block 9 moves into the first connecting groove 4. Thus, the sliding block 9 limits and fixes the limiting block 6. When the circuit breaker body 7 needs to be disassembled, it can be disassembled according to the above method.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum circuit breaker for a switch cabinet, comprising a fixed base (1), a first connecting groove (4) being provided inside the fixed base (1), a top wall of the first connecting groove (4) extending out of the fixed base (1), and a second connecting groove (5) being provided on a left wall of the first connecting groove (4); The left wall of the second connecting groove (5) extends out of the fixed base (1), and the interior of the first connecting groove (4) is slidably connected to a limiting block (6); The left side of the limit block (6) is fixedly connected to the circuit breaker body (7), and the left side of the circuit breaker body (7) extends out of the fixed base (1) through the second connecting groove (5), characterized in that: The fixed base (1) is provided with a clamping mechanism, through which the limit block (6) can be limited; The clamping mechanism comprises a sliding groove (8), a sliding clamping block (9), a spring (10), two control sliding grooves (11), two control blocks (12) and a connecting rod (13).

2. A vacuum circuit breaker for a switch cabinet according to claim 1, characterized in that: The front and rear sides of the fixed base (1) are fixedly connected to two fixed plates (2), and the four fixed plates (2) are each provided with a fixing bolt (3), and the fixed base (1) can be fixed to the switch cabinet via the fixing bolts (3).

3. A vacuum circuit breaker for a switch cabinet according to claim 1, characterized in that: The sliding groove (8) is formed inside the fixed base (1), and the sliding groove (8) is arranged on the upper side of the limit block (6); The right wall of the sliding groove (8) extends over the right wall of the first connecting groove (4), and the left wall of the sliding groove (8) extends over the left wall of the first connecting groove (4).

4. A vacuum circuit breaker for a switch cabinet according to claim 1, characterized in that: The sliding block (9) is slidably connected inside the sliding groove (8), and the sliding block (9) can block the limit block (6); The spring (10) is fixedly connected to the right side of the sliding block (9), and the right end of the spring (10) is fixedly connected to the right wall of the sliding groove (8).

5. The vacuum circuit breaker for a switch cabinet according to claim 1, characterized in that: The two control slide grooves (11) are both formed on the top wall of the slide groove (8), and the top walls of the two control slide grooves (11) extend out of the fixed base (1); The two control slide grooves (11) are arranged front and back, and the two control blocks (12) are fixedly connected to the upper side of the sliding block (9).

6. A vacuum circuit breaker for a switch cabinet according to claim 5, characterized in that: The upper sides of the two control blocks (12) extend out of the fixed base (1) through two control sliding grooves (11), and the connecting rod (13) is arranged between the two control blocks (12); The front side and the rear side of the connecting rod (13) are respectively fixedly connected to the opposite surfaces of the two control blocks (12), and the connecting rod (13) is arranged on the upper side of the fixed base (1).

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