High-voltage switch cabinet with novel quick-opening device

Abstract

The utility model discloses a high-voltage switch cabinet with a novel quick-opening device, which comprises a high-voltage switch cabinet body, one side of the high-voltage switch cabinet body is provided with a handcart chamber, one side of the high-voltage switch cabinet body is hinged with a door body used for sealing the handcart chamber, two U-shaped slide rails are arranged in an inner cavity of the door body, and the two U-shaped slide rails are connected with the handcart chamber. A sliding plate is slidably installed in the two U-shaped sliding rails, a handcart circuit breaker is installed on the top face of the sliding plate, a connecting block is installed on the bottom face of the sliding plate, a limiting hole is formed in one side of the connecting block, an inserting groove communicated with the limiting hole is formed in the connecting block, and a push rod is movably installed on the surface of the door body in a penetrating mode. And a limiting block capable of penetrating through the limiting hole to enter the slot is mounted at one end of the push rod. By controlling the limiting block to abut against the connecting block, the handcart circuit breaker can be conveniently pushed to close a circuit, the limiting block is controlled to enter the slot to pull back the connecting block, the handcart circuit breaker can be driven to break a short circuit, control is convenient, and circuit switching efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a high-voltage switch cabinet with a novel quick-opening device. Background Art

[0002] In the power system, high-voltage switchgear is a vital power equipment. It plays a key role in the distribution, control and protection of electricity. The stable operation of high-voltage switchgear is directly related to the reliability and safety of the entire power system.

[0003] Typically, a hand crank wrench is required to position and switch the trolley circuit breaker in a high-voltage switchgear. This operation is cumbersome and cannot quickly complete the switching operation. In some emergency situations, such as when power failures require rapid power restoration, this traditional operation method may result in a long response time, affecting the recovery speed of the power system. In addition, to prevent misoperation, the hand crank wrench usually needs to be separated from the cabinet. When the circuit needs to be switched on or off, the wrench may be lost, sometimes affecting the circuit switching. To this end, we propose a high-voltage switchgear with a novel quick-opening device. Utility Model Content

[0004] The purpose of the utility model is to provide a high-voltage switch cabinet with a novel quick-opening device to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a high-voltage switchgear with a novel quick-opening device, comprising a high-voltage switchgear body, a trolley compartment being provided on one side of the high-voltage switchgear body, a door body being hingedly connected to one side of the high-voltage switchgear body for closing the trolley compartment, two U-shaped slide rails being installed in the inner cavity of the door body, sliding plates being slidably installed in the interior of the two U-shaped slide rails, and a trolley circuit breaker being installed on the top surface of the sliding plate;

[0006] A connecting block is installed on the bottom surface of the sliding plate, a limiting hole is provided on one side of the connecting block, a slot connected to the limiting hole is provided inside the connecting block, the axial cross-section of the slot is circular, a push rod is movably installed on the surface of the door body, and a limiting block is installed on one end of the push rod, which can pass through the limiting hole and enter the slot.

[0007] Preferably, the trolley circuit breaker is used to contact the busbar contacts and outgoing line contacts of the high-voltage switchgear body to close the circuit.

[0008] Preferably, the axial cross-sectional dimension of the limiting block matches the axial cross-sectional dimension of the limiting hole, the inner diameter of the slot is larger than the length of the limiting hole, and the axial cross-sectional length of the limiting hole is longer than the width.

[0009] Preferably, the push rod can rotate and move axially inside the door body.

[0010] Preferably, a handle is installed at one end of the push rod, and the push rod as a whole is parallel to the handle.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. For this high-voltage switchgear with a new quick-opening device, when closing the circuit, keep the handle and the limit block in a vertical state, push the handle, push rod and limit block against one side of the connecting block and move backward. The connecting block drives the sliding plate and the trolley circuit breaker to move backward until the trolley circuit breaker contacts the busbar contact and the outgoing line contact to complete the circuit closure. At this time, since the limit block is not inside the slot, moving the limit block will not drive the connecting block to continue moving, thereby preventing accidental touch from causing the circuit state to change.

[0013] 2. For the high-voltage switchgear with a new quick-opening device, when the circuit needs to be disconnected, the handle and the limit block are kept in a horizontal state, and the handle is pushed to move backward, driving the limit block to pass through the limit hole and into the slot. Then the handle is rotated to a vertical state, thereby driving the limit block to a vertical state through the push rod. Pulling back the handle, push rod and limit block can drive the connecting block and sliding plate to move, and drive the trolley circuit breaker to move, so that the trolley circuit breaker is separated from the busbar contact and the outgoing line contact to complete the circuit disconnection. The circuit switching speed is fast, ensuring the efficiency of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the connecting block structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the connecting block of the utility model.

[0018] In the figure: 1. High-voltage switchgear body; 2. Cart compartment; 3. Door; 4. U-shaped slide rail; 5. Sliding plate; 6. Cart circuit breaker; 7. Connecting block; 8. Limit hole; 9. Slot; 10. Push rod; 11. Handle; 12. Limit block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] Please refer to Figure 1-4 As shown, the utility model provides a high-voltage switchgear with a novel quick-opening device, comprising a high-voltage switchgear body 1, a trolley compartment 2 being provided on one side of the high-voltage switchgear body 1, a door body 3 being hingedly connected to one side of the high-voltage switchgear body 1 for closing the trolley compartment 2, two U-shaped slide rails 4 being installed in the inner cavity of the door body 3, a sliding plate 5 being slidably installed inside the two U-shaped slide rails 4, a trolley circuit breaker 6 being installed on the top surface of the sliding plate 5, and the trolley circuit breaker 6 being used to contact the busbar contacts and outgoing line contacts of the high-voltage switchgear body 1 to close the circuit;

[0022] A connecting block 7 is installed on the bottom surface of the sliding plate 5, and a limiting hole 8 is provided on one side of the connecting block 7. A slot 9 connected to the limiting hole 8 is provided inside the connecting block 7, and the axial cross-section of the slot 9 is circular. A push rod 10 is movably installed on the surface of the door body 3, and a limiting block 12 is installed at one end of the push rod 10, which can pass through the limiting hole 8 and enter the slot 9.

[0023] Specifically, by controlling the limit block 12 to contact the connecting block 7, the trolley circuit breaker 6 can be easily pushed to close the circuit. By controlling the limit block 12 to enter the slot 9 and pull back the connecting block 7, the trolley circuit breaker 6 can be driven to disconnect the short circuit. The control is convenient and the switching circuit efficiency is high.

[0024] Among them: the axial cross-sectional size of the limit block 12 matches the axial cross-sectional size of the limit hole 8, the inner diameter of the slot 9 is larger than the length of the limit hole 8, and the axial cross-sectional length of the limit hole 8 is longer than the width, so that the limit block 12 can pass through the limit hole 8 and enter the interior of the slot 9.

[0025] The push rod 10 can rotate inside the door body 3 and move axially.

[0026] Among them, a handle 11 is installed at one end of the push rod 10, the push rod 10 is parallel to the handle 11 as a whole, the angle of the push rod 10 is the same as the angle of the handle 11, and the angular position of the limit block 12 can be changed by controlling the handle 11.

[0027] Working principle: The utility model is a high-voltage switchgear with a novel quick-opening device. When the trolley circuit breaker 6 is in the circuit-breaking state, the handle 11 is first pulled outward to make the limit block 12 close to the door body 3, and then the door body 3 is closed. The handle 11 and the limit block 12 are kept in a vertical state, and the handle 11, the push rod 10 and the limit block 12 are pushed to move backward against one side of the connecting block 7. The connecting block 7 drives the sliding plate 5 and the trolley circuit breaker 6 to move backward until the trolley circuit breaker 6 contacts the busbar contact and the outgoing line contact to complete the circuit closure. At this time, if the handle 11 is pulled back, the limit block 12 cannot drive the connecting block 7 to move, thereby preventing accidental touch from causing power failure.

[0028] When the circuit needs to be disconnected, keep the handle 11 and the limit block 12 in a horizontal state, push the handle 11 to move backward, drive the limit block 12 through the limit hole 8 and into the slot 9, and then rotate the handle 11 to a vertical state, thereby driving the limit block 12 to a vertical state through the push rod 10, pulling back the handle 11, the push rod 10 and the limit block 12, which can drive the connecting block 7 and the sliding plate 5 to move, and drive the trolley circuit breaker 6 to move, so that the trolley circuit breaker 6 is separated from the busbar contact and the outgoing contact to complete the circuit disconnection. The switching circuit speed is fast and can effectively prevent accidental touch. After disconnecting the circuit, rotate the handle 11 to keep the limit block 12 horizontal, and can control the limit block 12 to pass through the limit hole 8 and disengage from the slot 9 and the limit hole 8, and then the door body 3 can be opened normally.

[0029] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-voltage switchgear with a novel quick-opening device, comprising a high-voltage switchgear body (1), characterized in that: A trolley chamber (2) is provided on one side of the high-voltage switch cabinet body (1), and a door body (3) for closing the trolley chamber (2) is hingedly connected to one side of the high-voltage switch cabinet body (1), and two U-shaped slide rails (4) are installed in the inner cavity of the door body (3), and sliding plates (5) are slidably installed inside the two U-shaped slide rails (4), and a trolley circuit breaker (6) is installed on the top surface of the sliding plate (5); A connecting block (7) is installed on the bottom surface of the sliding plate (5), a limiting hole (8) is provided on one side of the connecting block (7), a slot (9) is provided inside the connecting block (7) and is connected to the limiting hole (8), and the axial cross-section of the slot (9) is circular. A push rod (10) is movably installed on the surface of the door body (3), and a limiting block (12) is installed on one end of the push rod (10) and can pass through the limiting hole (8) and enter the slot (9).

2. A high-voltage switchgear with a novel quick-opening device according to claim 1, characterized in that: The trolley circuit breaker (6) is used to contact the busbar contacts and outgoing line contacts of the high-voltage switch cabinet body (1) to close the circuit.

3. The high-voltage switchgear with a novel quick-opening device according to claim 1 is characterized in that: The axial cross-sectional dimensions of the limiting block (12) match those of the limiting hole (8), the inner diameter of the slot (9) is larger than the length of the limiting hole (8), and the axial cross-sectional length of the limiting hole (8) is longer than the width.

4. The high-voltage switchgear with a novel quick-opening device according to claim 1 is characterized in that: The push rod (10) can rotate and move axially inside the door body (3).

5. The high-voltage switchgear with a novel quick-opening device according to claim 1 is characterized in that: A handle (11) is installed at one end of the push rod (10), and the push rod (10) is parallel to the handle (11) as a whole.

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