Power distribution switch convenient to overhaul

Abstract

The invention discloses a power distribution switch convenient to overhaul, and relates to the technical field of power elements. The power distribution switch convenient to overhaul comprises a mounting plate, a power distribution switch body is arranged on the front face of the mounting plate, a clamping assembly is fixedly connected to the front face of the mounting plate, and a locking assembly is fixedly connected to the interior of the clamping assembly; the clamping assembly comprises contact conductor blocks, the wiring groove is fixedly connected to the back face of the power distribution switch, and the number of the contact conductor blocks is four. And the wiring groove is fixedly connected to the front surface of the mounting plate. According to the power distribution switch convenient to overhaul, the contact conductor block is pulled away from the space between the shielding body and the shielding block by disassembling the power distribution switch, and then the shielding block moves under the action of the shielding spring, so that the shielding block is attached to the shielding body, and the extension conductor of the connecting wire is closed, and a person can be prevented from directly contacting a current conducting part; and a maintainer is prevented from contacting an accidentally electrified conductor and getting an electric shock.

Description

Technical Field

[0001] The present invention relates to the technical field of power components, and particularly to a distribution switch convenient for maintenance. Background Art

[0002] A distribution switch is a key device in the power system for controlling, protecting, and isolating circuits, capable of safely connecting or disconnecting current; it usually includes types such as circuit breakers, disconnectors, and load switches, and is applicable to different voltage levels and application scenarios; the distribution switch has protection functions such as overload and short circuit, ensuring the stable operation of the power system and equipment safety; The patent with the application number CN202022674469.7 discloses a distribution switch for steel mills convenient for maintenance, including a main body mechanism and a connection mechanism. The main body mechanism includes a distribution switch body, a plug rod, a bolt, a first connecting rod, a second connecting rod, a clamping block, a spring, and a label. The inside of the distribution switch body is inserted with a plug rod, and a spring is sleeved on the surface of the plug rod. The back of the distribution switch body is fixedly installed with a first connecting rod through a bolt, and a second connecting rod is fixed inside the first connecting rod. A clamping block is connected to the surface of the second connecting rod, and a connection mechanism is connected to the surface of the first connecting rod; When the distribution switch needs to be maintained, it is necessary to disassemble the distribution switch from the connected circuit. Generally, the power will be cut off first and then the distribution switch will be disassembled. However, during the maintenance process, due to some unexpected situations, the circuit may be re-energized, resulting in personnel accidentally touching the wires during the maintenance process and getting an electric shock, putting the maintenance personnel in danger. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a distribution switch convenient for maintenance to solve the problems raised in the above background art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A distribution switch convenient for maintenance, including a mounting plate, on the front of which a distribution switch is provided, and a clamping assembly is fixedly connected to the front of the mounting plate, and a locking assembly is fixedly connected inside the clamping assembly; The clamping assembly includes: Contact conductor blocks, which are fixedly connected to the back of the distribution switch, and there are four contact conductor blocks; Wiring grooves, which are fixedly connected to the front of the mounting plate, and there are four wiring grooves; Extension conductors, which are fixedly connected to the front of the mounting plate, and there are four extension conductors.

[0005] Preferably, protrusions are provided on both the left and right sides of the distribution switch. A first clamping plate is movably connected to the left side of the distribution switch, and the first clamping plate is fixedly connected to the front surface of the mounting plate. A second clamping plate is movably connected to the right side of the distribution switch. A fixing screw is movably connected inside the second clamping plate, and the fixing screw is movably connected to the front surface of the mounting plate. The second clamping plate and the first clamping plate can clamp the distribution switch on the front surface of the mounting plate through the protrusions on both sides of the distribution switch.

[0006] Preferably, bottom clamping blocks are fixedly connected inside each wiring groove on the front surface of the mounting plate. A top clamping block is movably connected to the front of the corresponding bottom clamping block inside the wiring groove. A wire-fixing screw is movably connected to the back of the top clamping block, and the wire-fixing screw is movably connected to the corresponding wiring groove. Place the connected wire between the bottom clamping block and the top clamping block inside the wiring groove, and then tighten the wire-fixing screw to make the top clamping block press against the bottom clamping block to fix the wire connection point.

[0007] Preferably, the extension conductor is fixedly connected to the corresponding bottom clamping block. A shielding body is fixedly connected to the outer wall of the extension conductor, and the positions of the four extension conductors correspond to the four contact conductor blocks. When the power is normally on, the bottom clamping block will conduct the current on the wire to the extension conductor, and through the contact between the extension conductor and the contact conductor block, the current will pass through the distribution switch, enabling the distribution switch to achieve the function of controlling the circuit to close.

[0008] Preferably, a fixing block is fixedly connected to the front surface of the mounting plate at the corresponding position of the corresponding extension conductor. A shielding spring is fixedly connected to the side of the fixing block close to the corresponding extension conductor. A shielding block is fixedly connected to the side of the shielding spring close to the corresponding extension conductor. The shielding block is movably connected to the outer wall of the extension conductor. When the contact conductor block is pulled out from between the shielding body and the shielding block, the shielding block moves under the action of the shielding spring, making the shielding block fit with the shielding body to close the extension conductor connecting the wire.

[0009] Preferably, the locking assembly includes an internal groove. Internal grooves are provided inside each of the contact conductor blocks. Movable magnetic blocks are movably connected inside the internal grooves. A pulling spring is fixedly connected to the inner side of the movable magnetic block, and the pulling spring is fixedly connected to the contact conductor block.

[0010] Preferably, a connecting conductor is fixedly connected inside the shielding body at the top of the extension conductor. A spiral coil is fixedly connected to the side of the connecting conductor close to the corresponding contact conductor block. A contact conductor is fixedly connected to the side of the spiral coil close to the corresponding contact conductor block. An arc-shaped piece is fixedly connected to the side of the contact conductor close to the corresponding contact conductor block.

[0011] Preferably, a cylindrical metal block is arranged inside the spiral coil. The cylindrical metal block is fixedly connected to the extending conductor through an insulating support. A card slot is arranged at the corresponding position of the cylindrical metal block on the right side of the movable magnet block. Under normal power-on conditions, part of the current will be transmitted to the spiral coil through the connecting conductor. The current will be transmitted to the contact conductor block through the contact conductor and the arc-shaped piece through the spiral coil. When the current flows through the spiral coil, a magnetic field will be formed. The spiral coil and the cylindrical metal block jointly act to form an electromagnet, which will attract the pulling spring towards the cylindrical metal block.

[0012] The present invention provides a distribution switch convenient for maintenance, having the following beneficial effects: 1. For the distribution switch convenient for maintenance, by removing the distribution switch, the contact conductor block is withdrawn from between the shielding body and the shielding block. Then, the shielding block will move under the action of the shielding spring, and the shielding block will fit with the shielding body to close the extending conductor of the connecting wire, which can prevent people from directly contacting the part conducting current and prevent maintenance personnel from contacting the accidentally energized conductor and getting an electric shock, playing a protective role for the maintenance personnel.

[0013] 2. For the distribution switch convenient for maintenance, by unscrewing the fixing screws, the distribution switch and the second clamping plate are removed to facilitate the maintenance of the distribution switch. During the disassembly process, the disassembly of the wire is avoided, thus greatly avoiding the situation of electric shock for maintenance personnel and playing a protective role for the maintenance personnel.

[0014] 3. For the distribution switch convenient for maintenance, under normal power-on conditions, part of the current will be transmitted to the spiral coil through the connecting conductor. The current will be transmitted to the contact conductor block through the contact conductor and the arc-shaped piece through the spiral coil. It jointly acts with the cylindrical metal block to form an electromagnet. The pulling spring will extend into the card slot under the action of the attraction force. At this time, pulling the contact conductor block outwards will make the contact conductor block unable to be pulled outwards, thus avoiding the disassembly of the distribution switch under power-on conditions and preventing maintenance personnel from getting an electric shock, and playing a protective role for the maintenance personnel.

[0015] 4. For the distribution switch convenient for maintenance, an arc-shaped piece forms a compressible protrusion. At the same time, the shielding block will push the contact conductor block towards the arc-shaped piece under the action of the shielding spring, so that there is always pressure between the arc-shaped piece and the wiring groove, avoiding poor contact between the arc-shaped piece and the contact conductor block due to wear, thus effectively avoiding poor contact of the conductor and avoiding protection failure, and enhancing the protection for the maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front perspective structural schematic diagram of the present invention; Figure 2 is the left perspective structural schematic diagram of the present invention; Figure 3 is Figure 2 Schematic diagram of the enlarged structure of part A in Figure 4 is the perspective view of the three-dimensional structure of the present invention; Figure 5 is Figure 4 Schematic diagram of the enlarged structure of part B in Figure 6 is the right perspective view of the three-dimensional structure of the present invention; Figure 7 is Figure 6 Schematic diagram of the enlarged structure of part C in Figure 8 is the schematic diagram of the shielding body structure of the present invention; Figure 9 is Figure 8 Schematic diagram of the sectional structure; Figure 10 is the schematic diagram of the power distribution switch structure of the present invention; Figure 11 is Figure 10 Schematic diagram of the enlarged structure of part E in Figure 12 is Figure 9 Schematic diagram of the enlarged structure of part D in Figure 13 is the schematic diagram of the contact conductor block structure of the present invention.

[0017] In the figure: 1. mounting plate; 2. power distribution switch; 3. clamping assembly; 301. wiring groove; 302. bottom clamping block; 303. top clamping block; 304. wire fixing screw; 305. extending conductor; 306. shielding body; 307. fixing block; 308. shielding spring; 309. shielding block; 310. contact conductor block; 311. first clamping plate; 312. second clamping plate; 313. fixing screw; 4. locking assembly; 401. internal groove; 402. movable magnetic block; 403. pulling-back spring; 404. clamping groove; 405. connecting conductor; 406. spiral coil; 407. contact conductor; 408. arc-shaped piece; 409. cylindrical metal block. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0020] Example 1: Please refer to Figure 1-11 , the present invention provides a technical solution: a distribution switch convenient for maintenance, including a mounting plate 1, a distribution switch 2 is arranged on the front surface of the mounting plate 1, a clamping assembly 3 is fixedly connected to the front surface of the mounting plate 1, and a locking assembly 4 is fixedly connected inside the clamping assembly 3; The clamping assembly 3 includes: Contact conductor blocks 310, the contact conductor blocks 310 are fixedly connected to the back surface of the distribution switch 2, and four contact conductor blocks 310 are provided; Wiring grooves 301, the wiring grooves 301 are fixedly connected to the front surface of the mounting plate 1, and four wiring grooves 301 are provided; Extension conductors 305, the extension conductors 305 are fixedly connected to the front surface of the mounting plate 1, and four extension conductors 305 are provided.

[0021] Protrusions are arranged on the left and right sides of the distribution switch 2. A first clamping plate 311 is movably connected to the left side of the distribution switch 2, and the first clamping plate 311 is fixedly connected to the front surface of the mounting plate 1. A second clamping plate 312 is movably connected to the right side of the distribution switch 2. A fixing screw 313 is movably connected inside the second clamping plate 312, and the fixing screw 313 is movably connected to the front surface of the mounting plate 1. The second clamping plate 312 and the first clamping plate 311 can clamp the distribution switch 2 on the front surface of the mounting plate 1 through the protrusions on both sides of the distribution switch 2.

[0022] When maintenance is required, first cut off the power supply, and remove the distribution switch 2 and the second clamping plate 312 by unscrewing the fixing screw 313.

[0023] A bottom clamping block 302 is fixedly connected inside each wiring groove 301 on the front surface of the mounting plate 1. A top clamping block 303 is movably connected to the front of the corresponding bottom clamping block 302 inside the wiring groove 301. A wire fixing screw 304 is movably connected to the back of the top clamping block 303, and the wire fixing screw 304 is movably connected to the corresponding wiring groove 301.

[0024] Place the connected wire between the bottom clamping block 302 and the top clamping block 303 inside the wiring groove 301, and then tighten the wire fixing screw 304 to make the top clamping block 303 press against the bottom clamping block 302 to fix the wire connection point.

[0025] The extension conductor 305 is fixedly connected to the corresponding bottom clamping block 302. A shielding body 306 is fixedly connected to the outer wall of the extension conductor 305, and the positions of the four extension conductors 305 correspond to the four contact conductor blocks 310.

[0026] When normally powered on, the bottom clamping block 302 will conduct the current on the wire to the extension conductor 305, and through the contact between the extension conductor 305 and the contact conductor block 310, the current will pass through the distribution switch 2, enabling the distribution switch 2 to control the closing of the circuit.

[0027] On the front side of the mounting plate 1, at the corresponding position corresponding to the extension conductor 305, a fixing block 307 is fixedly connected. On the side of the fixing block 307 close to the corresponding extension conductor 305, a shielding spring 308 is fixedly connected. On the side of the shielding spring 308 close to the corresponding extension conductor 305, a shielding block 309 is fixedly connected. The shielding block 309 is movably connected to the outer wall of the extension conductor 305.

[0028] Cut off the power supply. By unscrewing the fixing screw 313, the power distribution switch 2 and the second clamping plate 312 are removed to facilitate the maintenance of the power distribution switch 2. During the disassembly process, the disassembly of the wire is avoided. When the power distribution switch 2 is removed, the contact conductor block 310 will be withdrawn from between the shielding body 306 and the shielding block 309. Then, the shielding block 309 will move under the action of the shielding spring 308, and the shielding block 309 will fit with the shielding body 306 to close the extension conductor 305 connecting the wire, which can prevent people from directly contacting the part conducting current.

[0029] Embodiment 2: Please refer to Figure 1-13 , based on Embodiment 1, the present invention provides a technical solution: The locking component 4 includes an internal groove 401. The internal grooves 401 are provided inside the contact conductor blocks 310. Inside the internal grooves 401, movable magnetic blocks 402 are movably connected. Inside the movable magnetic blocks 402, a pulling-back spring 403 is fixedly connected, and the pulling-back spring 403 is fixedly connected to the contact conductor block 310.

[0030] When the movable magnetic block 402 is pulled outward, the pulling-back spring 403 will be elongated. When the movable magnetic block 402 loses the pulling force from the outside, the pulling-back spring 403 will pull the movable magnetic block 402 back into the contact conductor block 310.

[0031] On the top of the extension conductor 305, a connecting conductor 405 is fixedly connected inside the shielding body 306. On the side of the connecting conductor 405 close to the corresponding contact conductor block 310, a spiral coil 406 is fixedly connected. On the side of the spiral coil 406 close to the corresponding contact conductor block 310, a contact conductor 407 is fixedly connected. On the side of the contact conductor 407 close to the corresponding contact conductor block 310, an arc-shaped piece 408 is fixedly connected.

[0032] Under normal power-on conditions, part of the current will be transmitted to the spiral coil 406 through the connecting conductor 405, and the current will be transmitted to the contact conductor block 310 through the contact conductor 407 and the arc-shaped piece 408 through the spiral coil 406.

[0033] The arc-shaped piece 408 forms a compressible protrusion. At the same time, the shielding block 309 pushes the contact conductor block 310 towards the arc-shaped piece 408 under the action of the shielding spring 308, so that there is always pressure between the arc-shaped piece 408 and the wiring groove 301, avoiding poor contact between the arc-shaped piece 408 and the contact conductor block 310 due to wear of the arc-shaped piece 408.

[0034] A cylindrical metal block 409 is arranged inside the spiral coil 406. The cylindrical metal block 409 is fixedly connected to the extension conductor 305 through an insulating support. A card slot 404 is arranged at the corresponding position of the right side of the cylindrical metal block 409 for the movable magnetic block 402.

[0035] When current flows through the spiral coil 406, a magnetic field is formed. The spiral coil 406 and the cylindrical metal block 409 jointly act to form an electromagnet, which will then attract the pulling-back spring 403 towards the cylindrical metal block 409. As a result, the pulling-back spring 403 penetrates into the card slot 404 under the action of the attraction force. At this time, pulling the contact conductor block 310 outwards will prevent the contact conductor block 310 from being pulled outwards.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A distribution switch convenient for maintenance, comprising a mounting plate (1), characterized in that: On the front of the mounting plate (1), there is a power distribution switch (2). On the front of the mounting plate (1), a clamping assembly (3) is fixedly connected. Inside the clamping assembly (3), a locking assembly (4) is fixedly connected; The clamping assembly (3) includes: Contact conductor blocks (310), the contact conductor blocks (310) are fixedly connected to the back of the power distribution switch (2), and there are four contact conductor blocks (310); Wiring grooves (301), the wiring grooves (301) are fixedly connected to the front of the mounting plate (1), and there are four wiring grooves (301); Extension conductors (305), the extension conductors (305) are fixedly connected to the front of the mounting plate (1), and there are four extension conductors (305).

2. The convenient-to-maintain power distribution switch according to claim 1, characterized in that: On the left and right sides of the power distribution switch (2), there are protrusions. On the left side of the power distribution switch (2), a first clamping plate (311) is movably connected, and the first clamping plate (311) is fixedly connected to the front of the mounting plate (1). On the right side of the power distribution switch (2), a second clamping plate (312) is movably connected. Inside the second clamping plate (312), a fixing screw (313) is movably connected, and the fixing screw (313) is movably connected to the front of the mounting plate (1).

3. The convenient-to-maintain power distribution switch according to claim 1, wherein: On the front of the mounting plate (1), a bottom clamping block (302) is fixedly connected inside each wiring groove (301). Inside the wiring groove (301), a top clamping block (303) is movably connected in front of the corresponding bottom clamping block (302). The back of the top clamping block (303) is movably connected to a wire fixing screw (304), and the wire fixing screw (304) is movably connected to the corresponding wiring groove (301).

4. A distribution switch convenient for maintenance according to claim 1, characterized in that: The extension conductor (305) is fixedly connected to the corresponding bottom clamping block (302). An obstruction body (306) is fixedly connected to the outer wall of the extension conductor (305), and the positions of the four extension conductors (305) correspond to the four contact conductor blocks (310).

5. A distribution switch convenient for maintenance according to claim 1, characterized in that: On the front of the mounting plate (1), at the corresponding position of the corresponding extension conductor (305), a fixing block (307) is fixedly connected. On the side of the fixing block (307) close to the corresponding extension conductor (305), a shielding spring (308) is fixedly connected. On the side of the shielding spring (308) close to the corresponding extension conductor (305), a shielding block (309) is fixedly connected, and the shielding block (309) is movably connected to the outer wall of the extension conductor (305).

6. The distribution switch convenient for maintenance according to claim 1, characterized in that: The locking assembly (4) includes an internal groove (401). Inside each of the contact conductor blocks (310), there is an internal groove (401). Inside the internal groove (401), a movable magnet block (402) is movably connected. Inside the movable magnet block (402), a pulling-back spring (403) is fixedly connected, and the pulling-back spring (403) is fixedly connected to the contact conductor block (310).

7. The convenient-to-maintain power distribution switch according to claim 1, characterized in that: At the top of the extension conductor (305) located inside the shielding body (306), a connection conductor (405) is fixedly connected. On the side of the connection conductor (405) close to the corresponding contact conductor block (310), a spiral coil (406) is fixedly connected. On the side of the spiral coil (406) close to the corresponding contact conductor block (310), a contact conductor (407) is fixedly connected. On the side of the contact conductor (407) close to the corresponding contact conductor block (310), an arc-shaped piece (408) is fixedly connected.

8. A distribution switch convenient for maintenance according to claim 7, characterized in that: Inside the spiral coil (406), a cylindrical metal block (409) is arranged. The cylindrical metal block (409) is fixedly connected to the extension conductor (305) through an insulating support. On the right side of the cylindrical metal block (409) at the corresponding position of the movable magnet block (402), a card slot (404) is arranged.

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