An isolation and blocking tool for secondary terminals

Abstract

The present invention relates to the technical field of isolation of electrical equipment, and provides an isolation and blocking tool for secondary terminals, comprising a base and a sleeve sleeved outside the base, wherein the base is movably arranged in the sleeve; the ends of the base and the sleeve are each provided with a clip for snapping with the secondary terminal; when the base moves deeper into the sleeve, the clips on the base and the sleeve move toward each other, and the base and the sleeve are fixed to the secondary terminal by the clip, isolating them; an elastic member is provided between the base and the sleeve for driving the clip to move toward each other. The tool has a quick disassembly and assembly function, and can be quickly disassembled and assembled by a simple clip. It can be reused and is not easy to fall off.

Description

Technical Field

[0001] The present invention relates to the technical field of isolation of electrical equipment, and in particular to an isolation and blocking tool for secondary terminals. Background Art

[0002] When performing regular inspections, maintenance, and countermeasures on relay protection equipment, it's common to encounter multiple protection devices installed within the same protective panel. If some protection devices within the panel are not within their operational scope, or if the protection devices within their operational scope are connected to the circuits of other operating protection devices, inadequate isolation measures can lead to operators accidentally touching or miswiring wires, potentially causing malfunction of the operating protection devices, resulting in equipment safety incidents and even personal injury.

[0003] To address this, the use of insulating tape or paper, or specialized isolation labels (for secondary terminals), has emerged as an isolation tool. While these are practical and flexible, with sufficient spare parts available, they are prone to falling off, breaking, are expensive, and cannot be reused, making it particularly difficult to isolate individual terminals. Dedicated isolation labels offer convenience and flexibility in field use, allowing for flexible adjustments to size. However, they are more complex to produce, increasing pre-operation preparation, and are prone to falling off, forcing them to be single-use only.

[0004] Both of the above-mentioned isolation tools have the defect of being easy to fall off, so their safety and reliability are low. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect that the existing isolation tools for secondary terminals are easy to fall off, and to provide a secondary terminal isolation and blocking tool that is safer and more reliable.

[0006] To achieve the above-mentioned objectives, the present invention is implemented through the following technical solutions: an isolation and blocking tool for secondary terminals includes a base and a sleeve sleeved outside the base, the base is movably arranged in the sleeve; the end of the base and the end of the sleeve are both provided with a clip for snapping with the secondary terminal; when the base goes deeper into the sleeve, the clips on the base and the sleeve move toward each other, and the base and the sleeve are fixed to the secondary terminal by the clip, isolating them; an elastic member is provided between the base and the sleeve for driving the clips to move toward each other.

[0007] It has a quick disassembly and assembly function, which can be quickly disassembled and assembled through simple buckles. It can be reused and is not easy to fall off.

[0008] A further preferred solution of the present invention is that the elastic member is a spring or a hydraulic spring.

[0009] A further preferred embodiment of the present invention is that both the base and the sleeve are insulating parts.

[0010] A further preferred solution of the present invention is that the end of the sleeve is provided with a first push rod for pushing the sleeve away from the base during disassembly.

[0011] A further preferred solution of the present invention is: a cap is provided at the end of the sleeve, and the cap is threadedly connected to the sleeve; the first push rod is arranged outside the cap, and the base is passed through the cap and extends into the sleeve.

[0012] A further preferred solution of the present invention is that a slider is provided at the end of the base, and the elastic member drives the slider to slide in the sleeve.

[0013] A further preferred solution of the present invention is: a second push rod is provided on the slider, and a side wall of the sleeve is provided with an escape opening for avoiding the second push rod, and the escape opening extends axially along the sleeve; the second push rod extends out of the sleeve through the escape opening.

[0014] A further preferred embodiment of the present invention is that the outer surfaces of the sleeve and the base are coated with a colored oil coating, so that the operator is alerted by the eye-catching color and can quickly check whether there is an isolation and blocking tool on the secondary terminal.

[0015] A further preferred solution of the present invention is that an anti-slip edge is provided on the end surface of the buckle that contacts the secondary terminal to increase friction and prevent slipping.

[0016] In summary, the present invention has the following beneficial effects: When performing live work within a protective screen, installing this insulation protection device—an isolation and blocking tool—can prevent operators from accidentally touching or miswiring wires. This effectively prevents line and equipment failures and personal injury. Furthermore, it facilitates assembly and disassembly, effectively shortening the secondary terminal isolation time and improving work efficiency. Furthermore, the use of a new insulation material is corrosion-resistant, high-temperature-resistant, and has excellent aging resistance, extending the device's service life and reducing its operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the isolation and blocking tool described in Example 1.

[0018] Figure 2 It is a cross-sectional view of the isolation and blocking tool described in Example 1 in a disassembled state.

[0019] Figure 3 It is a top view of the isolation and blocking tool described in Example 1 in a disassembled state.

[0020] Figure 4 and Figure 5It is a schematic diagram of the installation and removal status of the isolation and blocking tool described in Example 1 on the secondary terminal.

[0021] Figure 6 It is a cross-sectional view of the isolation and blocking tool described in Example 2.

[0022] Among them: 100, base; 110, slider; 120, second push rod; 200, sleeve; 210, cylinder cap; 220, first push rod; 230, avoidance opening; 300, buckle; 310, anti-slip edge; 400, spring. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] This embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0025] Example 1:

[0026] like Figure 1-3 As shown, this embodiment provides an isolation and blocking tool for a secondary terminal, comprising a base 100 and a sleeve 200 sleeved outside the base 100. The base 100 and the sleeve 200 are in the shape of a long column, the sleeve 200 has a hole in the middle, and the base 100 is movably arranged in the sleeve 200. The base 100 and the sleeve 200 are both insulating parts.

[0027] The ends of the base 100 and the sleeve 200 are each provided with a buckle 300 for buckling with the secondary terminal. The buckle 300 at the end of the base 100 and the buckle 300 at the end of the sleeve 200 are arranged opposite each other and are fixed to the slot of the secondary terminal.

[0028] When the base 100 moves deeper into the sleeve 200, the buckles 300 on the base 100 and sleeve 200 move toward each other, and the base 100 and sleeve 200 are fixed to the secondary terminal by the buckle 300, isolating them. An elastic member is provided between the base 100 and sleeve 200 to drive the buckle 300 to move toward each other.

[0029] In this embodiment, the elastic member is preferably a spring 400 (or a hydraulic spring 400 ).

[0030] Specifically, the end of the sleeve 200 (away from the buckle 300) is provided with a first push rod 220 for pushing it away from the base 100 during disassembly. A cap 210 is provided at the end of the sleeve 200, which is threadedly connected to the sleeve 200. The first push rod 220 is disposed outside the cap 210, and the base 100 is inserted through the cap 210 and extends into the sleeve 200.

[0031] The end of the base 100 (away from the buckle 300) is penetrated by the cap 210, and a slider 110 is provided at the end. The elastic member drives the slider 110 to slide in the sleeve 200. The slider 110 is threadedly connected to the base 100.

[0032] The slider 110 is provided with a second push rod 120. The side wall of the sleeve 200 is provided with an escape opening 230 for escaping the second push rod 120. The escape opening 230 extends axially along the sleeve 200. The second push rod 120 extends out of the sleeve 200 through the escape opening 230.

[0033] The outer surfaces of the sleeve 200 and the base 100 are coated with a colored coating, generally a red coating.

[0034] In order to prevent the buckle 300 from slipping off, an anti-slip ridge 310 is provided on the end surface of the buckle 300 that contacts the secondary terminal.

[0035] Example 2:

[0036] This embodiment provides another isolation and sealing tool for secondary terminals. Embodiment 2 differs from Embodiment 1 in that the end of the base 100 in Embodiment 2 is threaded with a slider 110. A threaded section is provided on the base 100. Adjusting the position of the slider 110 on the threaded section adjusts the tightness of the spring 400, adapting to secondary terminals with different slot spacings and reliably enclosing the terminal. The remaining structure and features are identical to those of Embodiment 1 and will not be described in detail here.

Claims

1. An isolation and blocking tool for secondary terminals, characterized in that: It comprises a base body and a sleeve sleeved outside the base body, wherein the base body is movably arranged in the sleeve; The ends of the base and the sleeve are each provided with a buckle for buckling with the secondary terminal; when the base moves deeper into the sleeve, the buckles on the base and the sleeve move toward each other, and the base and the sleeve are fixed to the secondary terminal by the buckle, isolating them; An elastic member is provided between the base and the sleeve for driving the buckle to move toward each other; The end of the sleeve is provided with a first push rod for pushing it away from the base body during disassembly; A slider is provided at the end of the base, and the elastic member drives the slider to slide in the sleeve; The slider is provided with a second push rod, and the side wall of the sleeve is provided with an escape opening for evading the second push rod, and the escape opening extends along the axial direction of the sleeve; The second push rod extends out of the sleeve through the avoidance opening.

2. The isolation and blocking tool for secondary terminals according to claim 1, characterized in that: The elastic member is a spring.

3. The isolation and blocking tool for secondary terminals according to claim 1, characterized in that: The base and the sleeve are both insulating parts.

4. The isolation and blocking tool for secondary terminals according to claim 1, characterized in that: A tube cap is provided at the end of the sleeve, and the tube cap is threadedly connected to the sleeve; the first push rod is arranged outside the tube cap, and the base is penetrated by the tube cap and penetrates into the sleeve.

5. The isolation and blocking tool for secondary terminals according to claim 1, characterized in that: The outer surfaces of the sleeve and the base are coated with an oily colored coating.

6. The isolation and blocking tool for secondary terminals according to claim 1, characterized in that: An anti-slip edge is provided on the end surface of the buckle that contacts the secondary terminal.

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