A circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit

Abstract

The utility model relates to the technical field of circuit breaker, specifically is a kind of circuit breaker for environmental protection gas insulation medium voltage looped network cabinet, including circuit breaker body, the bottom side of circuit breaker body is equipped with connecting structure, connecting structure includes screwing stem, the bottom side of circuit breaker body is rotatably connected with screwing stem, the end of screwing stem is hook-shaped structure, the bottom side of circuit breaker body is equipped with connecting arc groove, the side surface of circuit breaker body is slidably connected with plug-in block, the side of circuit breaker body away from plug-in block is equipped with plug-in slot, and the both ends of circuit breaker body are equipped with fixed structure;By the bottom side of circuit breaker body setting rotatable screwing stem and connecting arc groove, the adjacent circuit breaker between can be connected, and combining the plug-in block and plug-in slot of circuit breaker body side surface can be head-to-tail connection fixed to multiple circuit breaker, the installation of multiple circuit breaker is facilitated, and the installation of circuit breaker is more neat.

Description

Technical Field

[0001] This utility model relates to a circuit breaker, specifically an environmentally friendly gas-insulated medium-voltage ring main unit circuit breaker, belonging to the field of circuit breaker technology. Background Technology

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions and, within a specified time, closing, carrying, and interrupting current under abnormal circuit conditions. Circuit breakers are used to distribute electrical energy, infrequently start asynchronous motors, protect power lines and motors, and automatically disconnect the circuit when serious overloads, short circuits, or undervoltage faults occur. Their function is equivalent to a combination of a fuse switch and over / under-temperature relays. Power distribution is a crucial link in the generation, transmission, and use of electricity. Power distribution systems include transformers and various high and low voltage electrical equipment, with low-voltage circuit breakers being a widely used type of electrical appliance.

[0003] Existing circuit breakers are usually installed in a group of multiple units in a ring main unit to control the on and off of current. This means that each circuit breaker usually needs to be installed and fixed one by one, resulting in low installation efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an environmentally friendly gas-insulated medium-voltage ring main unit circuit breaker to solve the above problems. By setting a rotatable connecting rod and connecting arc groove on the bottom side of the circuit breaker body, adjacent circuit breakers can be connected. Combined with the plug-in block and plug-in groove on the side of the circuit breaker body, multiple circuit breakers can be connected and fixed end to end, which facilitates the installation of multiple circuit breakers and makes the installation of circuit breakers more neat.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an environmentally friendly gas-insulated medium-voltage ring main unit circuit breaker, comprising a circuit breaker body, a connecting structure provided on the bottom side of the circuit breaker body, the connecting structure including a swivel rod, the swivel rod being rotatably connected to the bottom side of the circuit breaker body, the end of the swivel rod having a hook-shaped structure, a connecting arc groove being provided on the bottom side of the circuit breaker body, a plug-in block being slidably connected to the side of the circuit breaker body, a plug-in groove being provided on the side of the circuit breaker body away from the plug-in block, and a fixing structure being provided at both ends of the circuit breaker body.

[0006] Preferably, a second spring is fixedly connected between the plug block and the circuit breaker body, and the plug block is located on the side of the swivel rod.

[0007] Preferably, a push block is fixedly connected to the side of the screw rod, and the side of the push block abuts against the end of the plug block.

[0008] Preferably, a torsion spring is fixedly connected between the rotary rod and the circuit breaker body, a limiting groove is provided on the bottom side of the circuit breaker body, the limiting groove has an arc-shaped structure, and the end of the rotary rod is slidably connected to the circuit breaker body through the limiting groove.

[0009] Preferably, the side of the rotary rod abuts against a release block, the release block is slidably connected to the circuit breaker body, and a first spring is fixedly connected between the release block and the circuit breaker body.

[0010] Preferably, the side of the connecting rod is provided with a locking groove, and the end of the release block is engaged with the connecting rod through the locking groove.

[0011] Preferably, the fixing structure includes a wiring port, and a wiring port is provided at each of the two ends of the circuit breaker body, and an electrode is installed in the wiring port of the circuit breaker body.

[0012] Preferably, the electrode has a groove-shaped structure, and a wire insertion hole is provided on the side of the electrode.

[0013] Preferably, a screw is rotatably connected to each end of the circuit breaker body, and a rotating rod is rotatably connected to the end of the screw.

[0014] Preferably, the bottom end of the screw is threadedly connected to a threaded sleeve, which is slidably connected to the inner side of the circuit breaker body, and the bottom end of the threaded sleeve abuts against the middle of the electrode.

[0015] The beneficial effects of this utility model are as follows: A rotatable connecting rod is provided on the bottom side of the circuit breaker body. After the circuit breaker bodies that need to be installed together are spliced ​​together, the plug-in block on the side of the circuit breaker body will slide into the plug-in groove on the side of the other circuit breaker. Then, the user can rotate the connecting rod so that the end of the connecting rod slides into the arc-shaped connecting groove opened on the bottom side of the other circuit breaker. In this way, the two circuit breakers that are spliced ​​together can be connected and fixed. After all the circuit breakers that need to be installed together are fixed end to end, the circuit breakers can be quickly installed inside the ring main unit, and the installation of the circuit breakers is more neat and beautiful. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the circuit breaker body and the rotary joint rod of this utility model;

[0018] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.

[0019] Figure 4This is a schematic diagram of the connection structure between the circuit breaker body and the plug block of this utility model.

[0020] In the diagram: 1. Circuit breaker body; 2. Connection structure; 201. Rotary rod; 202. Plug block; 203. Push block; 204. Connecting arc groove; 205. Limiting groove; 206. Release block; 207. First spring; 208. Second spring; 209. Torsion spring; 210. Plug groove; 211. Engaging groove; 3. Fixing structure; 301. Wiring port; 302. Electrode; 303. Screw; 304. Rotating rod; 305. Threaded sleeve; 306. Socket hole. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 As shown, an environmentally friendly gas-insulated medium-voltage ring main unit circuit breaker includes a circuit breaker body 1. A connecting structure 2 is provided on the bottom side of the circuit breaker body 1. The connecting structure 2 includes a rotating rod 201. The rotating rod 201 is rotatably connected to the bottom side of the circuit breaker body 1. The end of the rotating rod 201 has a hook-shaped structure. A connecting arc groove 204 is opened on the bottom side of the circuit breaker body 1. A plug block 202 is slidably connected to the side of the circuit breaker body 1. A plug groove 210 is opened on the side of the circuit breaker body 1 away from the plug block 202. Fixed structures 3 are provided at both ends of the circuit breaker body 1.

[0023] As a technical optimization of this utility model, a second spring 208 is fixedly connected between the plug-in block 202 and the circuit breaker body 1. The plug-in block 202 is located on the side of the rotating rod 201. A pushing block 203 is fixedly connected to the side of the rotating rod 201. The side of the pushing block 203 abuts against the end of the plug-in block 202. A torsion spring 209 is fixedly connected between the rotating rod 201 and the circuit breaker body 1. A limiting groove 205 is provided on the bottom side of the circuit breaker body 1. The limiting groove 205 has an arc-shaped structure. The end of the rotating rod 201 is slidably connected to the circuit breaker body 1 through the limiting groove 205. A release block 206 abuts against the side of the rotating rod 201. The release block 206 is slidably connected to the circuit breaker body 1. A first spring 207 is fixedly connected between the release block 206 and the circuit breaker body 1. A locking groove 211 is provided on the side of the rotating rod 201. The end of the release block 206... The circuit breaker is engaged with the rotary connecting rod 201 via the engaging groove 211. To facilitate left and right splicing of the circuit breaker, the plug-in block 202 located on the side of the circuit breaker body 1 is normally in a retracted state under the traction of the second spring 208. When the circuit breakers are spliced ​​and the rotary connecting rod 201 is rotated, the pushing block 203 on the side of the rotary connecting rod 201 pushes the plug-in block 202 out and engages with the plug-in groove 210 on the other circuit breaker. A torsion spring 209 is connected between the rotary connecting rod 201 and the circuit breaker body 1. With the cooperation of the limiting groove 205, it remains in a retracted state when stationary. When the rotary connecting rod 201 is rotated to engage with the connecting arc groove 204 on the other circuit breaker, the end of the release block 206 engages with the engaging groove 211, maintaining the current connection and fixed state of the circuit breaker. When contact is required, simply slide the release block 206 for easy use.

[0024] As a technical optimization of this utility model, the fixed structure 3 includes a wiring port 301. A wiring port 301 is provided at each end of the circuit breaker body 1. An electrode 302 is installed in the wiring port 301 of the circuit breaker body 1. The electrode 302 has a groove-shaped structure, and a wire insertion hole 306 is provided on the side of the electrode 302. A screw 303 is rotatably connected to each end of the circuit breaker body 1. A rotating rod 304 is rotatably connected to the end of the screw 303. A threaded sleeve 305 is threadedly connected to the bottom end of the screw 303. The threaded sleeve 305 is slidably connected to the inner side of the circuit breaker body 1. The bottom end of the threaded sleeve 305 is connected to the electrode. The middle part of 302 is in contact with each other. The two ends of the circuit breaker body 1 are provided with wiring ports 301 for connecting cables. In order to improve the connection strength and convenience between the conductor and the electrode 302, after the metal end of the conductor is passed through the insertion hole 306 opened on the electrode 302, the user can rotate the screw 303 by rotating the rotating rod 304, drive the threaded sleeve 305 to slide to the bottom side and press the metal part of the conductor on the electrode 302, ensuring a good fixing effect and facilitating disassembly and assembly. At the same time, compared with fixing directly with screws, it can avoid the loss of screws and other parts, making the installation more convenient.

[0025] In use, this utility model first has a rotatable connecting rod 201 located on the bottom side of the circuit breaker body 1. After the circuit breaker bodies 1 that need to be installed together are spliced ​​together, the plug-in block 202 on the side of the circuit breaker body 1 will slide into the plug-in groove 210 on the side of the other circuit breaker. Then, the user can rotate the connecting rod 201 so that the end of the connecting rod 201 slides into the arc-shaped connecting groove 204 opened on the bottom side of the other circuit breaker. In this way, the two circuit breakers that are spliced ​​can be connected and fixed. After all the necessary parts are installed... After the circuit breakers installed together are fixed end to end, the circuit breakers can be quickly installed inside the ring main unit, making the installation neater and more aesthetically pleasing. To facilitate the left and right splicing of the circuit breakers, the plug-in block 202 located on the side of the circuit breaker body 1 is normally in a retracted state under the traction of the second spring 208. When the circuit breakers are spliced ​​together and the rotary joint rod 201 is rotated, the push block 203 on the side of the rotary joint rod 201 will push the plug-in block 202 to extend and connect with the plug-in slot on the other circuit breaker. The 210-phase engagement mechanism is connected to the circuit breaker body 1 via a torsion spring 209, which, in conjunction with the limiting groove 205, remains retracted in a stationary state. When the rotating rod 201 is rotated to engage with the connecting arc groove 204 on another circuit breaker, the end of the release block 206 engages with the engagement groove 211, maintaining the current connection and fixation of the circuit breaker. Contact can be made simply by sliding the release block 206, making it convenient to use. Connection ports 301 for connecting cables are located at both ends of the circuit breaker body 1. To improve the connection strength and convenience between the conductor and the electrode 302, after the metal end of the conductor is passed through the insertion hole 306 on the electrode 302, the user can rotate the screw 303 by rotating the rod 304, driving the threaded sleeve 305 to slide to the bottom and press the metal part of the conductor on the electrode 302, ensuring a good fixing effect and facilitating disassembly and assembly. Compared to direct screw fixing, this avoids the loss of screws and other parts, making installation more convenient.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit, comprising a circuit breaker body (1), characterized in that: The circuit breaker body (1) has a connecting structure (2) on its bottom side. The connecting structure (2) includes a swivel rod (201). The swivel rod (201) is rotatably connected to the bottom side of the circuit breaker body (1). The end of the swivel rod (201) is hook-shaped. The bottom side of the circuit breaker body (1) has a connecting arc groove (204). The side of the circuit breaker body (1) is slidably connected to a plug block (202). The side of the circuit breaker body (1) away from the plug block (202) has a plug groove (210). The two ends of the circuit breaker body (1) have fixing structures (3).

2. The circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 1, characterized in that: A second spring (208) is fixedly connected between the plug block (202) and the circuit breaker body (1), and the plug block (202) is located on the side of the swivel rod (201).

3. The circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 1, characterized in that: A push block (203) is fixedly connected to the side of the swivel rod (201), and the side of the push block (203) abuts against the end of the plug block (202).

4. The circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 1, characterized in that: A torsion spring (209) is fixedly connected between the rotary rod (201) and the circuit breaker body (1). A limiting groove (205) is provided on the bottom side of the circuit breaker body (1). The limiting groove (205) has an arc-shaped structure. The end of the rotary rod (201) is slidably connected to the circuit breaker body (1) through the limiting groove (205).

5. The circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 1, characterized in that: The side of the rotating rod (201) abuts against a release block (206), the release block (206) is slidably connected to the circuit breaker body (1), and a first spring (207) is fixedly connected between the release block (206) and the circuit breaker body (1).

6. The circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 5, characterized in that: The side of the connecting rod (201) is provided with a locking groove (211), and the end of the release block (206) is engaged with the connecting rod (201) through the locking groove (211).

7. The circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 1, characterized in that: The fixed structure (3) includes a wiring port (301), and a wiring port (301) is opened at both ends of the circuit breaker body (1). An electrode (302) is installed in the wiring port (301) of the circuit breaker body (1).

8. The circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 7, characterized in that: The electrode (302) has a groove-shaped structure, and a wire insertion hole (306) is provided on the side of the electrode (302).

9. A circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 7, characterized in that: The circuit breaker body (1) has a screw (303) rotatably connected to each end, and a rotating rod (304) rotatably connected to the end of the screw (303).

10. A circuit breaker for an environmentally friendly gas-insulated medium-voltage ring main unit according to claim 9, characterized in that: The bottom end of the screw (303) is threadedly connected to a threaded sleeve (305), which is slidably connected to the inner side of the circuit breaker body (1). The bottom end of the threaded sleeve (305) abuts against the middle of the electrode (302).

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