Anti-creeping isolation device of switch cabinet

Abstract

The utility model provides a switch cabinet anti-creeping isolation device comprising an isolation switch and an interlocking assembly, the isolation switch comprises a first static contact and a second static contact, the second static contact is hinged with an isolation baffle plate, and one end of the isolation baffle plate far away from the second static contact is provided with an interlocking gap; the interlocking assembly comprises a fixed seat arranged on the first static contact, a sliding shaft is arranged in the fixed seat, one end of the sliding shaft extends to the outside of the fixed seat in a sliding mode, two sides of the sliding shaft are respectively provided with an interlocking block and an anti-falling block, and the outside of the sliding shaft is sleeved with an elastic piece which is located in the fixed seat and located between the interlocking block and the anti-falling block. According to the anti-creeping isolation device of the switch cabinet, the stability and the safety of closing between the isolation baffle plate and the static contact are improved. By designing the interlocking assembly with the interlocking notch and the interlocking block, it is ensured that the isolation baffle can be tightly matched with the static contact in the operation process of the isolation switch, and looseness caused by abrasion or misoperation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of leakage prevention and isolation of switch cabinets, in particular to an leakage prevention and isolation device for a switch cabinet. Background Art

[0002] The switch cabinet leakage protection isolation device is a device used in power systems. Its main function is to ensure the isolation of the circuit and prevent accidental leakage during maintenance, inspection or operation, thereby ensuring the safety of operators and the normal operation of equipment.

[0003] In the power system, operators need to ensure that the isolation baffle is properly closed to ensure safety when performing maintenance or operation on the switchgear. In the existing switchgear design, the closure between the isolation baffle and the static contact is not stable enough. The main reason is that the isolation baffle and the static contact are frequently used components, which are prone to loosening due to wear, thereby reducing the stability of the two.

[0004] Based on the above, the present application proposes a switch cabinet leakage protection isolation device to solve the problem of poor interlocking stability between the isolation baffle and the static contact. Utility Model Content

[0005] The utility model provides a switch cabinet anti-leakage isolation device, which solves the problems mentioned in the above background technology.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A switch cabinet anti-leakage isolation device comprises an isolating switch and an interlocking assembly, wherein the isolating switch comprises a first static contact and a second static contact, an isolating baffle is hingedly connected to the second static contact, and an interlocking notch is provided at one end of the isolating baffle away from the second static contact;

[0008] The interlocking assembly includes a fixed seat arranged on the first static contact, a sliding shaft with one end slidingly extending to the outside thereof is arranged in the fixed seat, an interlocking block and an anti-dropping block are respectively arranged on both sides of the sliding shaft, and an elastic member located inside the fixed seat and between the interlocking block and the anti-dropping block is sleeved on the outside of the sliding shaft.

[0009] Furthermore, a slide groove is provided in the fixing seat, and a side of the slide groove close to the interlocking block is communicated with the outside, and the outside of the interlocking block is fitted in the slide groove and slides along it.

[0010] Furthermore, the tops of the interlocking block and the interlocking notch are inclined surfaces, and the bottoms thereof are flat surfaces; the interlocking block and the interlocking notch are adapted to each other.

[0011] Furthermore, the anti-drop block is located outside the fixing seat, and a buffer pad is provided on a side close to the fixing seat.

[0012] Furthermore, the isolating switch comprises a bracket, and a first insulator and a second insulator are respectively arranged on both sides of the top of the bracket, and the first static contact and the second static contact are respectively arranged on the first insulator and the second insulator.

[0013] Beneficial effects of the technical solution provided by this application:

[0014] The switch cabinet leakage protection isolation device improves the stability and safety of the closure between the isolation baffle and the static contact. By designing an interlocking assembly with an interlocking notch and an interlocking block, it is ensured that during the operation of the isolation switch, the isolation baffle can be closely matched with the static contact to prevent loosening due to wear or improper operation. This design improvement significantly reduces the risk of misoperation and enhances the reliability of the isolation switch in long-term and frequent use, thereby providing a higher level of safety protection for operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the leakage-proof isolation device for the switch cabinet of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the leakage protection isolation device of the switch cabinet of the utility model;

[0018] Figure 3 It is a schematic diagram of the interlocking assembly of the utility model.

[0019] In the figure: 100 isolating switch, 110 bracket, 120 first insulator, 121 first static contact, 130 second insulator, 131 second static contact, 132 isolating baffle, 133 interlocking notch;

[0020] 200 interlocking assembly, 210 fixing seat, 220 sliding shaft, 230 interlocking block, 240 anti-dropping block, 250 elastic member. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-3 A switch cabinet leakage prevention isolation device includes an isolating switch 100 and an interlocking assembly 200, wherein the isolating switch 100 includes a first static contact 121 and a second static contact 131, an isolating baffle 132 is hingedly connected to the second static contact 131, and an interlocking notch 133 is provided at one end of the isolating baffle 132 away from the second static contact 131; the interlocking assembly 200 includes a fixed seat 210 arranged on the first static contact 121, a sliding shaft 220 with one end slidingly extending to the outside thereof is arranged in the fixed seat 210, an interlocking block 230 and an anti-dropping block 240 are respectively arranged on both sides of the sliding shaft 220, and an elastic member 250 is sleeved on the outside of the sliding shaft 220 and is located inside the fixed seat 210 and between the interlocking block 230 and the anti-dropping block 240.

[0023] The design of the isolating switch 100 includes two key components: a first stationary contact 121 and a second stationary contact 131. An isolating baffle 132 is hinged on the second stationary contact 131. The function of the isolating baffle 132 is to achieve physical isolation from the first stationary contact 121 by flipping when the circuit needs to be isolated, thereby cutting off the current. In order to ensure the precise position of the isolating baffle 132 when it is closed or opened, an interlocking assembly 200 is designed. The interlocking assembly 200 is installed on the first stationary contact 121, and its core component includes an interlocking block 230.

[0024] When the isolation baffle 132 flips over to close with the first static contact 121, the isolation baffle 132 pushes the interlocking block 230, and the interlocking block 230 uses the sliding shaft 220 to make the interlocking block 230 retreat inside the fixed seat 210. The elastic member 250 will be compressed and accumulate force in this process. When the interlocking notch 133 corresponds to the interlocking block 230, the elastic member 250 will push the interlocking block 230 back to fit in the interlocking notch 133, so that the interlocking block 230 limits the position of the isolation baffle 132 to prevent accidental disconnection.

[0025] Elastic parts 250 are mechanical parts or components that use the elastic properties of materials to achieve specific functions. They will deform under the action of external forces, and can return to their original state when the external force is removed. There are many types of elastic parts, including the following products: springs, rubber bushings, silicone rubber sleeves, metal leaf springs, metal spiral springs, etc. You can choose according to actual needs.

[0026] In some embodiments, a slide groove 211 is provided in the fixing seat 210 , and a side of the slide groove 211 close to the interlocking block 230 is communicated with the outside, and the outside of the interlocking block 230 fits in the slide groove 211 and slides along it.

[0027] The slide groove 211 provides a guide path so that the interlocking block 230 can slide precisely inside the fixed seat 210. This precise control helps ensure that the interlocking block 230 can be correctly moved and guided when the isolation baffle 132 is actuated. The design of the slide groove 211 reduces the friction of the interlocking block 230 during the sliding process, making the operation smoother, reducing the operating resistance, and improving the efficiency and reliability of the operation.

[0028] When the isolation baffle 132 needs to be turned over to close, the isolation baffle 132 pushes the interlocking block 230 to slide along the slide slot 211. The opening portion of the slide slot 211 communicates with the outside, allowing the interlocking block 230 to extend or retract from the fixing seat 210 when needed.

[0029] In some embodiments, the tops of the interlocking block 230 and the interlocking notch 133 are inclined surfaces, and the bottoms thereof are flat surfaces; the interlocking block 230 and the interlocking notch 133 are adapted to each other.

[0030] The top design of the inclined surface enables the interlocking block 230 to be automatically positioned when it contacts the interlocking notch 133. When the interlocking block 230 slides into the interlocking notch 133, the inclined surface guides the interlocking block 230 to correctly enter the notch, ensuring the precise fit between the two. The design of the flat bottom ensures that the interlocking block 230 can be stably positioned after sliding into the interlocking notch 133, preventing accidental closure or leakage caused by inaccurate fit.

[0031] Once the interlocking block 230 slides into the interlocking notch 133, the close combination of the inclined surface and the flat surface forms a stable locking state. This locking mechanism prevents the interlocking block 230 from accidentally moving during operation, thereby ensuring the safety of the disconnector 100.

[0032] In some embodiments, the anti-drop block 240 is located outside the fixing seat 210 , and a buffer pad is provided on a side close to the fixing seat 210 .

[0033] The anti-drop block 240 is located outside the fixing base 210. This position design ensures that the interlocking block 230 will not accidentally drop out of the fixing base 210 even under extreme operating conditions. The anti-drop block 240 is placed outside the fixing base 210. This position enables it to effectively limit the range of movement of the interlocking block 230 and prevent it from falling out of the fixing base 210 during operation. A buffer pad is provided on the side of the anti-drop block 240 close to the fixing base 210. This buffer pad can provide additional support when the interlocking block 230 is subjected to external force, reduce the direct damage to the interlocking assembly caused by the impact, and thus extend the service life of the equipment.

[0034] In some embodiments, the isolating switch 100 includes a bracket 110 , and a first insulator 120 and a second insulator 130 are respectively disposed on both sides of the top of the bracket 110 , and a first static contact 121 and a second static contact 131 are respectively disposed on the first insulator 120 and the second insulator 130 .

[0035] By respectively arranging the first insulator 120 and the second insulator 130 on both sides of the top of the bracket 110, the high-voltage part of the circuit can be effectively isolated to prevent the current from flowing through an unexpected path, thereby improving the insulation performance of the entire switch cabinet. The first static contact 121 and the second static contact 131 are respectively arranged on the insulators. Such a layout helps to maintain a sufficient safety distance during operation and reduce the risk of electric shock to the operator. The use of insulators not only provides electrical isolation, but also provides a stable support for the static contacts, ensuring the mechanical stability of the disconnector during operation.

[0036] The support 110 is the basic structure of the isolating switch 100, providing the necessary support and fixing points. It is designed to bear the weight of the static contact and the insulator while ensuring sufficient mechanical strength. The first static contact 121 and the second static contact 131 are respectively mounted on the first insulator 120 and the second insulator 130. When the isolating switch is operated, the isolation baffle 132 contacts or separates from the static contact to close or disconnect the circuit. The presence of the insulator ensures the electrical isolation between the static contacts.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch cabinet anti-leakage isolation device, comprising an isolating switch (100) and an interlocking assembly (200), characterized in that: The isolating switch (100) comprises a first stationary contact (121) and a second stationary contact (131); an isolating baffle (132) is hingedly connected to the second stationary contact (131); an interlocking notch (133) is provided at one end of the isolating baffle (132) away from the second stationary contact (131); The interlocking assembly (200) comprises a fixed seat (210) arranged on the first static contact (121), a sliding shaft (220) having one end slidingly extending to the outside thereof is arranged in the fixed seat (210), an interlocking block (230) and an anti-slip block (240) are respectively arranged on both sides of the sliding shaft (220), and an elastic member (250) is sleeved on the outside of the sliding shaft (220) and is located inside the fixed seat (210) and between the interlocking block (230) and the anti-slip block (240).

2. The switch cabinet anti-leakage isolation device according to claim 1, characterized in that: The fixing seat (210) is provided with a slide groove (211), and a side of the slide groove (211) close to the interlocking block (230) is communicated with the outside, and the outside of the interlocking block (230) is fitted in the slide groove (211) and slides along it.

3. The switch cabinet anti-leakage isolation device according to claim 1, characterized in that: The tops of the interlocking block (230) and the interlocking notch (133) are inclined surfaces, and the bottoms thereof are flat surfaces; the interlocking block (230) and the interlocking notch (133) are adapted to each other.

4. The switch cabinet anti-leakage isolation device according to claim 1, characterized in that: The anti-drop block (240) is located outside the fixing seat (210), and a buffer pad is provided on a side close to the fixing seat (210).

5. The switch cabinet anti-leakage isolation device according to claim 1, characterized in that: The isolating switch (100) comprises a bracket (110), a first insulator (120) and a second insulator (130) are respectively arranged on both sides of the top of the bracket (110), and a first stationary contact (121) and a second stationary contact (131) are respectively arranged on the first insulator (120) and the second insulator (130).

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