A limited insulation isolation device for 10 kV column insulator

Abstract

The present invention provides a limiting insulating isolation device for a 10 kV column insulator, comprising a shielding box and a limiting plate, the shielding box comprising a top wall, a bottom wall, a left side wall, a right side wall, a front side wall and a rear side wall, the limiting plate being movably arranged on the top wall of the shielding box, the top wall and the bottom wall of the shielding box are both provided with a first avoidance gap, the limiting plate is provided with a limiting clip, after the shielding box and the insulator are installed in place through the first avoidance gap, the limiting plate is operated so that the limiting clip clamps the insulator and covers the first avoidance gap, so that when the insulator and the cross arm are insulated and shielded, the first avoidance gap can be inserted into the insulator so that the insulator is located in the first avoidance gap, thereby shielding the insulator and the cross arm, and then the limiting plate is operated so that the limiting clip clamps the insulator, and at the same time, the limiting plate also covers the first avoidance gap, so that the insulator and the cross arm are shielded, so that the operator will not touch the cross arm during operation, thereby avoiding the risk of electric shock.

Description

Technical Field

[0001] The invention relates to an auxiliary tool for electric power maintenance, and in particular to a position-limiting insulating isolation device for a 10 kV column insulator. Background Art

[0002] When 10KV live working uses insulating gloves to tie and remove insulators and wires, it is necessary to take insulation shielding measures for column insulators and cross arms. The traditional method mainly uses insulation blankets to insulate column insulators and cross arms. This method takes a long time, has high labor intensity, poses personal safety hazards, and is very easy to damage the insulation blanket and cause economic losses. Therefore, how to improve the method of setting insulation shielding for column insulators is of great significance to improving the quality of live working.

[0003] When insulating blankets are used to insulate and shield column insulators and crossarms, the insulation blankets are directly wrapped around the column insulators. In special cases, the insulation blankets may short-circuit the creepage distance of the insulator porcelain skirts, causing equipment safety hazards of relatively direct discharge. In addition, due to the compact arrangement and small air spacing between the wires, insulators, crossarms and other components, there is a personal safety hazard of short-circuit electric shock caused by workers touching different potential equipment at the same time during the shielding process. At the same time, due to the structural shape of the components, insulation isolation measures are often not in place, insulation shielding is not strict, and the overlapping parts between the insulation blankets cannot meet the requirements. Summary of the invention

[0004] The object of the present invention is to provide a position limiting insulating isolation device for a 10 kV post insulator which is easy to operate and safe.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a limiting insulating isolation device for a 10 kV column insulator, which includes a shielding box and a limiting plate, the shielding box includes a top wall, a bottom wall, a left wall, a right wall, a front side wall and a rear side wall, the limiting plate is movably arranged on the top wall of the shielding box, the top wall and the bottom wall of the shielding box are provided with a first avoidance gap for avoiding the insulator, the limiting plate is provided with a limiting clip, after the shielding box is installed in place with the insulator through the first avoidance gap, the limiting plate is operated so that the limiting clip will clamp the insulator and shield the first avoidance gap.

[0006] Furthermore, the limiting plate is slidably arranged between the top wall of the shielding box.

[0007] Furthermore, a slide groove is provided on the rear side wall of the shielding box, and a sliding plate inserted into the slide groove is provided at the front end of the limiting plate.

[0008] Furthermore, a limiting edge is provided above the top wall of the shielding box and near the front side wall, a limiting groove is formed between the limiting edge and the top wall, and the rear end of the limiting plate is inserted into the limiting groove to limit the limiting plate in the up and down directions.

[0009] Furthermore, the limit plate is provided with a push rod for pushing the limit plate to slide, the push rod is provided with a second avoidance notch for avoiding the limit edge, and a limit step is formed on the push rod to cooperate with the front end surface of the limit edge.

[0010] Furthermore, a baffle is provided at one end of the push rod close to the second avoidance gap, the baffle is fitted with the front side wall of the shielding box, and the limiting step cooperates with the baffle to limit the limiting plate when it slides.

[0011] Furthermore, the shielding box is an epoxy resin shielding box, and the limiting plate is an epoxy resin limiting plate.

[0012] Furthermore, the front side wall of the shielding box is provided with a handle for facilitating the installation of the insulating partition.

[0013] Furthermore, the handle includes a first handle and a second handle, and the first handle and the second handle are arranged at an interval.

[0014] Furthermore, an insulating rubber flap is provided at the front end of the first avoidance gap, and the insulating rubber flap shields the insulator after the limiting plate is installed in place.

[0015] After adopting the above technical solution, the present invention has the following advantages:

[0016] 1. In the present invention, a limiting insulating isolation device is provided, which includes a shielding box and a limiting plate. The shielding box specifically includes a top wall, a bottom wall, a left wall, a right wall, a front side wall and a rear side wall. The limiting plate is movably arranged on the top wall of the shielding box, and a first avoidance gap for avoiding the insulator is arranged on the top wall and the bottom wall of the shielding box. A limiting bayonet is arranged on the limiting plate. In this way, when the insulator and the cross arm are insulated and shielded, the first avoidance gap can be inserted into the insulator so that the insulator is located in the first avoidance gap, thereby shielding the insulator and the cross arm. Then, the limiting plate is operated so that the limiting bayonet clamps the insulator, and the limiting plate also shields the first avoidance gap, so that the insulator and the cross arm are insulated and shielded. The insulator and the crossarm are shielded, so that the operator will not touch the crossarm during operation, thereby avoiding the risk of electric shock. Only the top of the insulator is exposed, and there is no risk of electric shock on the top of the insulator, that is, the insulator and the crossarm are well shielded, insulated and isolated to ensure the safety of the operator. Compared with the previous method of wrapping with an insulating blanket, this method is easy to operate, and only two simple operations are required. It is convenient for operation and saves time and effort, greatly improving the work efficiency of the maintenance personnel. At the same time, the limit plate can cooperate well with the insulator to limit and fix the shielding box, thereby ensuring the stability and reliability of the insulation shielding effect of the limit insulation isolation device.

[0017] 2. The limit plate is movably arranged on the top wall of the shielding box by sliding the limit plate between the limit plate and the top wall of the shielding box. This method facilitates the operation of the limit plate, and the movement of the limit plate is reliable and stable without deviation.

[0018] 3. By setting a slide groove on the rear side wall of the shielding box, a sliding plate inserted into the slide groove is provided at the front end of the limit plate, that is, the sliding plate and the slide groove cooperate with each other to realize the sliding setting of the limit plate, which not only ensures the reliability and stability of the sliding of the limit plate, but also has a simple structure and is convenient for processing and production.

[0019] 4. A limiting edge is provided above the top wall of the shielding box and near the front side wall, and a limiting groove is formed between the limiting edge and the top wall. The rear end of the limiting plate is inserted into the limiting groove to limit the limiting plate in the up and down directions. In this way, the limiting plate can be limited in the up and down directions so that the limiting plate will not shake up and down when sliding horizontally, so as to ensure the stability and reliability of the limiting plate when sliding, thereby ensuring the insulation shielding effect of the limiting insulation isolation device.

[0020] 5. A push rod is provided on the limit plate to facilitate pushing the limit plate to slide. The push rod is provided with a second avoidance notch for avoiding the limit edge and a limit step is formed on the push rod to cooperate with the front end surface of the limit edge. This makes it easy to push the limit plate to ensure the stability of the sliding of the limit plate.

[0021] 6. A baffle is provided at one end of the push rod close to the second avoidance gap, and the baffle is fitted with the front side wall of the shielding box. The limiting step cooperates with the baffle to limit the limiting plate when it slides, that is, the limiting step cooperates with the baffle to limit the radial position of the limiting plate, thereby ensuring the stability of the limiting plate when it slides, so as to ensure that the limiting plate can well shield the first avoidance gap, thereby ensuring the insulation shielding effect of the limiting insulation isolation device.

[0022] 7. The shielding box is an epoxy resin shielding box, and the limiting plate is an epoxy resin limiting plate. This material not only has good insulation effect, but is also light, convenient for operators to operate, and saves time and effort, saving physical energy to improve operating efficiency.

[0023] 8. The front side wall of the shielding box is provided with a handle for facilitating the installation of the limiting insulating isolation device, which makes it convenient to install the shielding box on the insulator and improves the operating efficiency of the operator.

[0024] 9. The handle is arranged to include a first handle and a second handle, and the first handle and the second handle are arranged at an interval, so that the shielding box can be held with both hands to install the shielding box on the insulator, which not only saves physical strength, but also makes the operation more convenient and stable.

[0025] 10. By setting an insulating rubber flap at the front end of the first avoidance gap, the insulating rubber flap can shield the insulator after the limit plate is installed in place, which can better ensure the insulation shielding effect of the limit insulation isolation device to ensure the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings:

[0027] Figure 1 It is a side view of the shielding box in the position-limiting insulating isolation device described in the present invention.

[0028] Figure 2 for Figure 1 A is an enlarged view of the middle image.

[0029] Figure 3 It is a top view of the limiting plate in the limiting insulating isolation device described in the present invention.

[0030] Figure 4 It is a schematic diagram of the cooperation between the shielding box and the limiting plate in the limiting insulating isolation device of the present invention.

[0031] Figure 5 It is a schematic diagram of the state of the position-limiting insulating isolation device of the present invention when it is ready to be shielded.

[0032] Figure 6 This is a schematic diagram of the state of the position limiting insulating isolation device of the present invention when preparing for shielding.

[0033] Figure 7 It is a schematic diagram of the state of the limiting insulating isolation device of the present invention when shielding is completed.

[0034] The names of the components in the figure are as follows:

[0035] 100. Limit insulating isolation device; 1. Shielding box; 11. Top wall; 111. Limiting edge; 12. Bottom wall; 13. First avoidance gap; 14. Rear side wall; 141. Slide groove; 15. Front side wall; 151. Handle; 1511. First handle; 1512. Second handle; 16. Left side wall; 17. Right side wall; 2. Limiting plate; 21. Limiting bayonet; 22. Push rod; 221. Baffle; 23. Sliding plate; 3. Insulator; 4. Cross arm. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following words indicating orientation or position relationship such as "upper", "lower", "left", "right", "longitudinal", "lateral", "inner", "outer", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0037] like Figures 1 to 7As shown, the present invention provides a limiting insulating isolation device 100 for a 10 kV column insulator, which includes a shielding box 1 and a limiting plate 2. The shielding box 1 includes a top wall 11, a bottom wall 12, a left side wall 16, a right side wall 17, a front side wall 15 and a rear side wall 14. The limiting plate 2 is movably arranged on the top wall 11 of the shielding box 1. The top wall 11 and the bottom wall 12 of the shielding box 1 are both provided with a first avoidance gap 13 for avoiding the insulator 3. The limiting plate 2 is provided with a limiting bayonet 21. After the shielding box 1 is installed in place with the insulator 3 through the first avoidance gap 13, the limiting plate 2 is operated so that the limiting bayonet 21 clamps the insulator 3 and shields the first avoidance gap 13. In this way, when the insulator 3 and the cross arm 4 are insulated and shielded, the first avoidance gap 13 can be inserted into the insulator 3 and the cross arm 4 so that the insulator 3 and the cross arm 4 are located in the first avoidance gap 13, thereby shielding the insulator 3 and the cross arm 4, and then When operating the limit plate 2, the limit clamp 21 will clamp the insulator 3. At the same time, the limit plate 2 will also cover the first avoidance gap 13, so that the insulator 3 and the cross arm 4 are shielded, so that the operator will not touch the cross arm during operation, thereby avoiding the risk of electric shock. Only the top of the insulator is exposed, and there is no risk of electric shock on the top of the insulator, that is, the insulator and the cross arm are well shielded, insulated and isolated to ensure the safety of the operator. Compared with the previous method of wrapping with an insulating blanket, this method is easy to operate and can be operated in two simple operations. It is convenient for operation and saves time and effort, greatly improving the work efficiency of the maintenance personnel. At the same time, the limit plate can cooperate well with the insulator to limit and fix the shielding box, thereby ensuring the stability and reliability of the insulation shielding effect of the limiting insulation isolation device. Of course, the process of the limiting insulation isolation device 100 shielding the insulator and the cross arm can be specifically referred to. Figures 5 to 7 shown.

[0038] In this embodiment, the limit plate 2 is slidably arranged between the top wall 11 of the shielding box 1 to realize that the limit plate 2 is movably arranged on the top wall 11 of the shielding box 1. This method is convenient for operating the limit plate, and the movement of the limit plate is reliable and stable without deviation.

[0039] In order to ensure the stability of the sliding of the limit plate, a slide groove 141 can be set on the rear side wall 14 of the shielding box 1, and a sliding plate 23 inserted into the slide groove 141 is provided at the front end of the limit plate 2. The slide groove 141 is formed by extending outward from the rear side wall 14 and folding upward, and the sliding plate 23 is formed by folding downward and extending from the front end of the limit plate 2, that is, the sliding plate and the slide groove cooperate with each other to realize the sliding setting of the limit plate. This not only ensures the reliability and stability of the sliding of the limit plate, but also has a simple structure and is convenient for processing and production.

[0040] In order to better ensure the stability of the sliding of the limit plate, a limit edge 111 can be set above the top wall 11 of the shielding box 1 and close to the front side wall 15. The limit edge 111 and the top wall 11 are spaced up and down to form a limit groove. The rear end of the limit plate 2 is inserted into the limit groove to limit the limit plate 2 in the up and down directions. In this way, the limit plate can be limited in the up and down directions, so that the limit plate will not shake up and down when sliding horizontally, so as to ensure the stability and reliability of the limit plate when sliding, thereby ensuring the insulation shielding effect of the limit insulation isolation device.

[0041] In order to facilitate the operation of the limit plate and further ensure the sliding stability of the limit plate, a push rod 22 can be provided on the limit plate 2 to facilitate the sliding of the limit plate 2. The push rod 22 is an independent component and is fixed to the limit plate 2 by pasting. The push rod 22 is provided with a second avoidance gap to avoid the limit edge 111 and a limiting step is formed on the push rod 22 to match the front end surface of the limit edge 111, which is convenient for pushing the limit plate to ensure the sliding stability of the limit plate; at the same time, a baffle 221 is provided at one end of the push rod 22 close to the second avoidance gap, and the baffle 221 is arranged in affixed relation to the front side wall of the shielding box, and the limiting step cooperates with the baffle to limit the limit plate when it slides, that is, the radial limit of the limit plate is limited by the cooperation of the limiting step and the baffle, so as to ensure the stability of the limit plate when it slides, so as to ensure that the limit plate can well shield the first avoidance gap, thereby ensuring the insulation shielding effect of the limiting insulation isolation device.

[0042] In order to ensure the insulation effect and facilitate operation, the shielding box 1 can be an epoxy resin shielding box, and the limiting plate 2 can be an epoxy resin limiting plate. This material not only has a good insulation effect, but is also light, convenient for operators to operate, and saves time and effort, saving physical energy to improve work efficiency.

[0043] In order to facilitate the installation of the limiting insulating isolation device, a handle 151 for facilitating the installation of the limiting insulating isolation device can be provided on the front side wall 15 of the shielding box 1, so that it is convenient to install the shielding box on the insulator and improve the working efficiency of the operator; specifically, the handle 15 is configured to include a first handle 1511 and a second handle 1512, and the first handle 1511 and the second handle 1512 are spaced apart, so that the shielding box can be held with both hands to install the shielding box on the insulator, which not only saves physical strength, but also is more convenient and stable to operate.

[0044] In order to better ensure the insulation shielding effect of the limiting insulation isolation device, an insulating rubber flap can be set at the front end of the first avoidance gap 13. After the limiting plate 2 is installed in place, the insulating rubber flap can shield the insulator. This can better ensure the insulation shielding effect of the limiting insulation isolation device to ensure the safety of the operator.

[0045] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art may make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined by the claims attached to the present invention.

Claims

1. A limiting insulation isolation device for a 10 kV post insulator, characterized in that: The shielding box comprises a shielding box and a limiting plate, wherein the shielding box comprises a top wall, a bottom wall, a left side wall, a right side wall, a front side wall and a rear side wall, the limiting plate is movably arranged on the top wall of the shielding box, the top wall and the bottom wall of the shielding box are both provided with a first avoidance notch for avoiding the insulator, the limiting plate is provided with a limiting bayonet, after the shielding box is installed in place with the insulator through the first avoidance notch, the limiting plate is operated so that the limiting bayonet clamps the insulator and shields the first avoidance notch; The limit plate is slidably arranged between the top wall of the shielding box; The rear side wall of the shielding box is provided with a slide groove, and the front end of the limiting plate is provided with a sliding plate inserted into the slide groove; A limiting edge is provided above the top wall of the shielding box and near the front side wall, a limiting groove is formed between the limiting edge and the top wall, and the rear end of the limiting plate is inserted into the limiting groove to limit the limiting plate in the up and down directions; The limit plate is provided with a push rod for pushing the limit plate to slide, the push rod is provided with a second avoidance notch for avoiding the limit edge, and a limit step is formed on the push rod to match the front end surface of the limit edge; The push rod is provided with a baffle at one end close to the second avoidance gap, the baffle is fitted with the front side wall of the shielding box, and the limiting step cooperates with the baffle to limit the limiting plate when it slides.

2. The position limiting insulation isolation device for a 10 kV post insulator according to claim 1 is characterized in that: The shielding box is an epoxy resin shielding box, and the limiting plate is an epoxy resin limiting plate.

3. The position limiting insulation isolation device for a 10 kV post insulator according to claim 1 is characterized in that: The front side wall of the shielding box is provided with a handle for facilitating installation of an insulating partition.

4. The position-limiting insulating isolation device for a 10 kV post insulator according to claim 3 is characterized in that: The handle comprises a first handle and a second handle, and the first handle and the second handle are arranged at an interval.

5. The position limiting insulation isolation device for a 10 kV post insulator according to claim 1 is characterized in that: An insulating rubber flap is provided at the front end of the first avoidance gap, and the insulating rubber flap shields the insulator after the shielding plate is installed in place.

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