High-voltage switchgear for easy maintenance and inspection

Abstract

The present invention relates to a high-voltage switch cabinet which is convenient for maintenance and inspection, comprising a cabinet body and two hinges arranged on the front side wall of the cabinet body, a cabinet door is fixedly arranged on the two hinges, two fixing plates are fixedly arranged in the cabinet body in the horizontal direction, a power connection sheet is fixedly arranged on the two fixing plates, an upper and a lower power connection sheet is electrically connected through a power connection rod, a plurality of terminal blocks are fixedly arranged on the power connection sheet, and a plurality of terminal blocks are electrically connected with electric wires, a cavity is correspondingly arranged in the side wall of the cabinet body above the power connection sheet, a fixing box is arranged in the cavity, the electric wires on the terminal blocks are correspondingly clamped in the fixing box, and a slider is fixedly arranged on the upper wall of the fixing box; the present invention realizes that when it is necessary to handle a fault in the switch cabinet, one end of the electric wire can be slid out to make it elongated, thereby avoiding the phenomenon of the electric wire being entangled when handling the fault.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, and in particular to a high-voltage switch cabinet which is convenient for maintenance and inspection. Background Art

[0002] The switch cabinet is an electrical equipment. The external line of the switch cabinet first enters the main control switch inside the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage and low-voltage room switch cabinets, with high-voltage busbars, such as power plants, etc. Some also have low-frequency load shedding to protect the main equipment. Its main function is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system;

[0003] Multiple wires in the existing switch cabinet are connected in a ring main unit (or interval), which is inconvenient to operate and maintain. At the same time, it is difficult to construct the ring main unit and the wires. When troubleshooting in the common box type ring main unit, the wires cross each other. In order to ensure personal safety, the entire common box type ring main unit needs to be powered off. When handling the wires, they must be adjusted by moving, pulling, prying and other large movements, which may cause damage to the bushing, poor contact and other consequences. In this regard, we propose a high-voltage switch cabinet that is easy to maintain and inspect. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a high-voltage switch cabinet that is easy to maintain and inspect, so that when a fault needs to be handled in the switch cabinet, one end of the wire can be slid out to stretch it, thereby avoiding the phenomenon of wire entanglement when handling the fault.

[0005] The technical solution of the present invention to solve the above technical problems is: to provide a high-voltage switch cabinet that is easy to maintain and inspect, including a cabinet body and two hinges arranged on the front side wall of the cabinet body, a cabinet door is also fixedly provided on the two hinges, two fixing plates are fixedly provided transversely on the cabinet body, and power connection plates are fixedly provided on the two fixing plates, and the upper and lower power connection plates are electrically connected through power connection rods, and a plurality of terminal posts are also fixedly provided on the power connection plates, and wires are electrically connected to the plurality of terminal posts, a cavity is correspondingly provided in the side wall of the cabinet body above the power connection plate, a fixing box is provided in the cavity, and the wires on the terminal posts are correspondingly clamped in the fixing box, a slider is fixedly provided on the upper wall of the fixing box, a matching slide groove is provided in the side wall of the cabinet body, the slider is slidably provided in the slide groove, and a limiting mechanism is also provided above the slider.

[0006] Further limiting technical solutions of the present invention:

[0007] Preferably, the limiting mechanism includes an inner cavity arranged above the slider, and the upper wall of the slider is also recessed with a slot, a locking rod is clamped in the slot, and the upper end of the locking rod is arranged in the inner cavity, and a locking block is fixedly provided on the upper end side wall of the locking rod, and the side wall of the locking block is arranged in an arc shape, and a rotating wheel is abutted against the surface of the locking block, and a push rod is provided at the other end of the rotating wheel, and the rotating wheel is rotatably arranged at the end of the push rod, and the other end of the push rod passes through the side wall of the cabinet, and a limiting block is fixedly provided on the side wall of the inner cavity, and a corresponding fixed block is fixedly provided on the side wall of the push rod, and a spring is fixed between the fixed block and the limiting block.

[0008] Preferably, the slider and the slide groove are arranged in a matching T-shape, and the slider and the slide groove are arranged smoothly.

[0009] Preferably, the sliding block and the fixing box are integrally formed, and the fixing box is made of metal, and its surface is coated with a protective paint having insulating properties.

[0010] Preferably, a rubber block is fixedly provided on one end of the support rod penetrating the side wall of the cabinet, and the material of the rubber block is natural rubber.

[0011] Further: the surfaces of the threaded rod and the rotating plate are coated with protective paint, and a fixing ring is fixed on the rotating plate.

[0012] Further: the nut and the bridge are integrally formed.

[0013] The beneficial effects of the present invention are as follows: the present invention enables the electric wires to be clamped in the fixed box when in use through the mutual cooperation of the fixed box, the cavity, the slide block and the slide groove. When performing maintenance or fault repair, the electric wires can be stretched by sliding out of the fixed box. The staff can tie one end of the stretched electric wires together, thereby avoiding the phenomenon of the electric wires crossing during maintenance and other operations, and avoiding easy damage to the surface of the electric wires.

[0014] The present invention provides a limiting mechanism so that the staff can push the rubber block to make the support rod and the clamping block move relative to each other, thereby ejecting the clamping rod from the clamping slot, and then conveniently taking out the fixed box, thereby saving working time and increasing working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0017] Figure 3 for Figure 2A schematic diagram of the side structure of

[0018] Figure 4 for Figure 3 The structural diagram at B in the middle;

[0019] In the figure: 1 cabinet, 2 hinge, 3 cabinet door, 4 fixed plate, 5 power connection plate, 6 power connection pole, 7 terminal, 8 wire, 9 cavity, 10 fixed box, 11 slider, 12 slide groove, 13 inner cavity, 14 slot, 15 clamping rod, 16 clamping block, 17 push rod, 18 rotating wheel, 19 fixed block, 20 limit block, 21 spring. DETAILED DESCRIPTION Example

[0020] This embodiment provides a high-voltage switch cabinet that is easy to maintain and inspect, such as Figure 1-4As shown, it includes a cabinet 1 and two hinges 2 arranged on the front side wall of the cabinet 1, and a cabinet door 3 is fixed on the two hinges 2. Two fixing plates 4 are fixedly arranged in the cabinet 1, and a power connection plate 5 is fixed on the two fixing plates 4. The upper and lower power connection plates 5 are electrically connected through a power connection rod 6. A plurality of terminal posts 7 are fixed on the power connection plates 5, and wires 8 are electrically connected to the plurality of terminal posts 7. A cavity 9 is correspondingly arranged in the side wall of the cabinet 1 above the terminal post 5, and a fixing box 10 is arranged in the cavity 9. The wires 8 on the terminal posts 7 are correspondingly connected in the fixing box 10. A slider 11 is fixed on the upper wall of the fixing box 10, and the slider 11 and the fixing box 10 are integrally formed. The fixing box 10 is made of metal, and its surface is coated with an insulating The protective paint with good insulation capacity improves the stability of the structure and effectively prevents the oxidation and rust on the surface of the fixed box from causing leakage, ensuring its safe operation. A matching slide groove 12 is provided in the side wall of the cabinet 1, and the slider 11 is slidably arranged in the slide groove 12. The slider 11 and the slide groove 12 are matched T-shaped settings, and the slider 11 and the slide groove 12 are smoothly set, so that the slider 11 will not slip when sliding in the slide groove 12. Through the mutual cooperation of the fixed box 10, the cavity 9, the slider 11 and the slide groove 12, the wire 8 can be clamped in the fixed box 10 when in use. When performing maintenance or fault repair, it can slide out of the fixed box 10 to stretch the wire 8, and the staff The elongated wires 8 can be bound together at one end, thereby avoiding the wires 8 from crossing during maintenance and other operations, and avoiding easy damage to the surface of the wires 8. A limiting mechanism is also provided above the slider 11, and the limiting mechanism includes an inner cavity 13 arranged above the slider 11. The upper wall of the slider 11 is also recessed with a card slot 14, and a card rod 15 is clamped in the card slot 14, and the upper end of the card rod 15 is arranged in the inner cavity 13. A clamping block 16 is fixedly provided on the upper end side wall of the card rod 15, and the side wall of the clamping block 16 is arranged in an arc shape. A rotating wheel 18 is abutted against the surface of the clamping block 16, and a push rod 17 is provided at the other end of the rotating wheel 18. The rotating wheel 18 is rotatably arranged at the end of the push rod 17, and the other end of the push rod 17 passes through the side wall of the cabinet 1. A rubber block is fixed on one end of the push rod 17 that passes through the side wall of the cabinet 1. The material of the rubber block is natural rubber, which is convenient for the staff to push and pull out the push rod 17. At the same time, the rubber block made of natural rubber has better elasticity to prevent damage to the human body. A limit block 20 is fixed on the side wall of the inner cavity 13, and a corresponding fixed block 19 is fixed on the side wall of the push rod 17. A spring 21 is fixed between the fixed block 19 and the limit block 20. Through the setting of the limiting mechanism, the staff can push the rubber block to make the push rod 17 and the clamping block 16 move relative to each other, so as to push the clamping rod 15 out of the clamping slot 14, and then the fixed box 10 can be easily taken out, which saves working time and increases work efficiency.

[0021] When the present embodiment is in use, the wire 8 can be firstly clamped in the fixed box 10 and slid into the cavity 9. The clamping rod 15 is pushed into the clamping slot 14 under the action of gravity and the spring 21 to prevent the fixed box 10 from moving. When maintenance or repair is required in the switch cabinet, the push rod 17 is pushed to make the rotating wheel 18 roll on the surface of the clamping block 16 and push the clamping rod 15 to move upward, so that the clamping rod 15 is disengaged from the clamping slot 14. Then, the fixed box 10 is pulled out, so that the fixed box 10 and the wire 8 connected thereto are pulled out together, and the wire 8 is elongated, and its length in the cabinet 1 becomes relatively shorter, so that the wire 8 in the cabinet 1 will not be entangled during maintenance, which facilitates the work process of the staff.

[0022] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. A high-voltage switch cabinet convenient for maintenance and inspection, comprising a cabinet body (1) and two hinges (2) arranged on the front side wall of the cabinet body (1), wherein a cabinet door (3) is fixedly arranged on the two hinges (2), and characterized in that: Two fixing plates (4) are transversely fixed in the cabinet (1), and a power connection plate (5) is fixed on each of the two fixing plates (4). The upper and lower power connection plates (5) are electrically connected via a power connection rod (6). A plurality of terminal posts (7) are fixed on the power connection plates (5), and a plurality of terminal posts (7) are electrically connected to electric wires (8). A cavity (9) is correspondingly provided in the side wall of the cabinet (1) above the power connection plates (5), and a fixing box (10) is provided in the cavity (9). The electric wires (8) on the terminal posts (7) are correspondingly clamped in the fixing box (10). A slider (11) is fixed on the upper wall of the fixing box (10), and a matching slide groove (12) is provided in the side wall of the cabinet (1). The slider (11) is slidably provided in the slide groove (12), and a limiting mechanism is also provided above the slider (11); The limiting mechanism comprises an inner cavity (13) arranged above the slider (11); the upper wall of the slider (11) is further provided with a recessed slot (14); a latching rod (15) is latched in the latching slot (14); the upper end of the latching rod (15) is arranged in the inner cavity (13); a latching block (16) is fixedly provided on the side wall of the upper end of the latching rod (15); the side wall of the latching block (16) is arranged in an arc shape; a rotating wheel (16) is abutted against the surface of the latching block (16); 8), a stop rod (17) is provided at the other end of the rotating wheel (18), the rotating wheel (18) is rotatably arranged at the end of the stop rod (17), the other end of the stop rod (17) penetrates the side wall of the cabinet (1), a limit block (20) is fixedly provided on the side wall of the inner cavity (13), a corresponding fixed block (19) is fixedly provided on the side wall of the stop rod (17), and a spring (21) is fixedly provided between the fixed block (19) and the limit block (20).

2. The high-voltage switch cabinet that is easy to maintain and inspect according to claim 1 is characterized in that: The slider (11) and the slide groove (12) are arranged in a matching T-shape, and the slider (11) and the slide groove (12) are arranged smoothly.

3. The high-voltage switch cabinet that is easy to maintain and inspect according to claim 1 is characterized in that: The sliding block (11) and the fixing box (10) are integrally formed, and the fixing box (10) is made of metal, and its surface is coated with a protective paint having insulating properties.

4. The high-voltage switch cabinet convenient for maintenance and inspection according to claim 1 is characterized in that: A rubber block is fixedly provided on one end of the support rod (17) that passes through the side wall of the cabinet (1), and the material of the rubber block is natural rubber.

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