Maintenance tool for relay protection

Abstract

The utility model relates to a maintenance tool for relay protection, which comprises a rotating rod, a crosshead, a straight head and a hexagonal head, a first sliding groove is formed in the rotating rod, a first sliding block is connected in the first sliding groove in a sliding manner, the bottom of the first sliding block is fixedly connected with an extension rod, and the bottom of the extension rod extends to the lower part of the rotating rod and is fixedly connected with a connecting block; annular grooves are formed in the outer sides of the connecting blocks, and indicator lamps are installed and connected in the annular grooves at equal intervals. The beneficial effects of the utility model lie in that different types of heads can be replaced conveniently, and various relay protection maintenance scenes can be coped with. And the magnetic suction block ensures that the head is not easy to fall off in the use process, and is convenient to mount and dismount. The operation flexibility of the tool is improved due to the extensibility of the extension rod, and the tool can adapt to operation spaces with different depths. The indicating lamp is turned on when the tool head is in contact with a live part, so that an operator can be effectively reminded, and the safety of maintenance operation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of relay protection technology, and in particular to a maintenance tool for relay protection. Background Technology

[0002] When a power system fault occurs, it is required to quickly isolate the fault to improve the stability of parallel operation of the power system; reduce the operating time of users under abnormal conditions of voltage drop, so that motors do not stop rotating due to prolonged voltage drop, and facilitate the self-starting of motors when the voltage is restored, so as to accelerate the process of restoring normal operation; in addition, it can also prevent the accident from escalating and reduce the damage to faulty components.

[0003] However, in the existing technology, in the current relay protection maintenance work, maintenance personnel often have to deal with a variety of different types of screws and connectors, which leads to frequent tool changes during the maintenance process, which seriously affects maintenance efficiency. At the same time, the length of many maintenance tools is fixed and cannot be adjusted according to the actual space requirements of the maintenance operation. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the main purpose of this utility model is to provide a maintenance tool for relay protection, which solves the problem that in the prior art, maintenance personnel often have to deal with a variety of different types of screws and connectors in the maintenance of relay protection, which leads to frequent tool changes during the maintenance process, seriously affecting maintenance efficiency. At the same time, the length of many maintenance tools is fixed and cannot be adjusted according to the actual space requirements of the maintenance operation.

[0005] The technical solution of this utility model is as follows: A maintenance tool for relay protection includes a rotating rod, a crosshead, a flathead, and a hexagonal head. The rotating rod has a first sliding groove inside, and a first slider is slidably connected inside the first sliding groove. An extension rod is fixedly connected to the bottom of the first slider. The bottom of the extension rod extends to the bottom of the rotating rod and is fixedly connected to a connecting block. An annular groove is formed on the outer side of the connecting block. Indicator lights are equidistantly installed inside the annular groove. A slot is formed at the bottom of the connecting block. An empty slot is formed inside the connecting block and above the slot. A magnetic block is installed inside the empty slot. A square block is fixedly connected to the top of each of the crosshead, flathead, and hexagonal head. The square block is slidably connected to the slot and magnetically connected to the magnetic block.

[0006] The above technical solution facilitates the replacement of different types of heads, addressing various relay protection maintenance scenarios. Magnetic blocks ensure the head won't easily detach during use, and installation and removal are convenient. The extendable extension rod increases the tool's operational flexibility, adapting to working spaces of varying depths. An indicator light illuminates when the tool head contacts a live component, effectively alerting the operator and ensuring safety during maintenance operations.

[0007] In a preferred embodiment, the extension rod has second sliding grooves equidistantly spaced inside, each second sliding groove having a second slider slidably connected inside. Each of the second sliders has a locking block fixedly connected to one side, with one end of each locking block extending to the outside of the extension rod. A spring is fixedly connected between each second slider and the second sliding groove. The inner wall of the first sliding groove has a groove, with one end of each locking block engaging with the groove. A top plate is slidably connected inside the groove, and a sliding rod is fixedly connected to one side of the top plate. One end of the sliding rod extends to the outside of the rotating rod and is fixedly connected to a limit block.

[0008] Through the above technical solution, the telescopic function of the extension rod allows the tool to be used in operating spaces of different depths, greatly increasing the tool's flexibility. The extension rod's extension and retraction can be controlled simply by operating the slide bar, making operation convenient and positioning accurate.

[0009] In a preferred embodiment, the top of the crosshead, the flathead, and the hexagonal head are all fixedly connected to the card plates on both sides of the square block, and the bottom of the empty slot is provided with irregular grooves on both sides of the card slot. The irregular grooves are used in conjunction with the card plates.

[0010] Through the above technical solution, the cooperation between the card plate and the irregular groove further enhances the connection stability between the head and the connecting block, preventing the head from rotating or loosening during use, ensuring the accuracy and safety of maintenance operations, and at the same time not affecting the normal installation and disassembly of the head.

[0011] In a preferred embodiment, a handle is fixedly connected to the top of the rotating rod, a focusing cover is fixedly connected to the bottom of the handle and located outside the rotating rod, and searchlights are installed at equal intervals at the bottom of the focusing cover.

[0012] The above technical solutions provide operators with a comfortable grip, facilitating tool operation and control. The searchlight offers ample and focused illumination in dimly lit working environments, making maintenance operations more accurate and efficient, and reducing operational errors caused by insufficient light.

[0013] In a preferred embodiment, the indicator light is electrically connected to the magnetic block, and the card plate is made of elastic plastic.

[0014] Through the above technical solution, the indicator light can intuitively show whether the head has come into contact with a live part, providing timely safety warnings to operators and preventing safety accidents caused by accidental contact with live parts. The elastic plastic material of the clamping plate ensures that it can be smoothly inserted into the irregular groove during installation to achieve a stable connection, while also facilitating operation during disassembly without damaging the tool or affecting the efficiency of tool head replacement due to excessive rigidity.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] This invention allows for easy replacement of different types of heads, catering to various relay protection maintenance scenarios. Magnetic blocks ensure the heads won't easily detach during use, and installation and removal are convenient. The extendable extension rod increases the tool's operational flexibility, adapting to different depths of operating space. An indicator light illuminates when the tool head contacts a live component, effectively alerting the operator and ensuring safety during maintenance. The extendable extension rod allows the tool to be used in operating spaces of varying depths, greatly increasing its versatility. The extension rod's extension and retraction are controlled simply by operating the slider, ensuring convenient operation and accurate positioning. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a maintenance tool for relay protection is provided for this utility model;

[0018] Figure 2 This utility model provides a cross-sectional front view of a maintenance tool for relay protection.

[0019] Figure 3 A cross-sectional bottom view of the structure of a maintenance tool for relay protection provided by this utility model;

[0020] Figure 4 This utility model provides a maintenance tool for relay protection. Figure 2 Enlarged structural diagram at point A in the middle.

[0021] Legend: 1. Rotating rod; 2. Handle; 3. First slide groove; 4. First slider; 5. Extension rod; 6. Second slide groove; 7. Second slider; 8. Locking block; 9. Spring; 10. Groove; 11. Top plate; 12. Slide rod; 13. Limiting block; 14. Connecting block; 15. Annular groove; 16. Indicator light; 17. Empty groove; 18. Magnetic block; 19. Locking slot; 20. Irregular groove; 21. Cross head; 22. Slotted head; 23. Hexagonal head; 24. Square block; 25. Locking plate; 26. Spotlight; 27. Searchlight. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this utility model provides a technical solution including a rotating rod 1, a cross head 21, a flat head 22, and a hexagonal head 23. The rotating rod 1 has a first sliding groove 3 inside, and a first slider 4 is slidably connected inside the first sliding groove 3. An extension rod 5 is fixedly connected to the bottom of the first slider 4. The bottom of the extension rod 5 extends to the bottom of the rotating rod 1 and is fixedly connected to a connecting block 14. An annular groove 15 is opened on the outer side of the connecting block 14. Indicator lights 16 are installed and connected at equal intervals inside the annular groove 15. A slot 19 is opened at the bottom of the connecting block 14. A hollow groove 17 is opened inside the connecting block 14 and above the slot 19. A magnetic block 18 is installed and connected inside the hollow groove 17. A square block 24 is fixedly connected to the top of the cross head 21, the flat head 22, and the hexagonal head 23. The square block 24 is slidably connected to the slot 19 and magnetically connected to the magnetic block 18.

[0025] In this embodiment, the bottom of the first slider 4 is connected to the extension rod 5. The extension rod 5 can move up and down by moving the slider within the groove, facilitating use in different operating spaces. The connecting block 14 is located at the bottom of the extension rod 5. An annular groove 15 is located on the outer side of the connecting block 14, and indicator lights 16 are installed equidistantly within the annular groove 15. A slot 19 is provided at the bottom of the connecting block 14, and an empty slot 17 is provided inside the connecting block 14 above the slot 19. A magnetic block 18 is installed within the empty slot 17. The tops of the crosshead 21, the flathead 22, and the hexagonal head 23 all have square blocks 24. These square blocks 24 can slide into the slot 19 and are attracted and fixed by the magnetic action of the magnetic blocks 18. When the crosshead, flathead, or hexagonal head comes into contact with a charged object, the current is conducted through the square blocks 24 to the magnetic blocks 18, thereby illuminating the indicator lights 16, serving as a warning.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the extension rod 5 has second sliding grooves 6 equidistantly arranged inside, and second sliders 7 are slidably connected inside each of the second sliding grooves 6. Each side of the second slider 7 is fixedly connected to a locking block 8, and one end of the locking block 8 extends to the outside of the extension rod 5. A spring 9 is fixedly connected between the second slider 7 and the second sliding groove 6. The inner wall of the first sliding groove 3 has a groove 10. One end of the locking block 8 cooperates with the groove 10. A top plate 11 is slidably connected inside the groove 10. A sliding rod 12 is fixedly connected to one side of the top plate 11. One end of the sliding rod 12 extends to the outside of the rotating rod 1 and is fixedly connected to a limit block 13.

[0027] In this embodiment, a locking block 8 is connected to one side of the second slider 7. One end of the locking block 8 extends outward from the extension rod 5 and engages with the groove 10 on the inner wall of the first slide groove 3. A spring 9 is connected between the second slider 7 and the second slide groove 6 to provide a restoring force for the locking block 8. A top plate 11 is located inside the groove 10. A sliding rod 12 is connected to one side of the top plate 11. One end of the sliding rod 12 extends outward from the rotating rod 1 and is connected to a limit block 13. When it is necessary to adjust the length of the extension rod 5, the sliding rod 12 is pushed, and the top plate 11 pushes the locking block 8 to retract, allowing the extension rod 5 to extend and retract within the rotating rod 1. After adjusting to the appropriate position, the sliding rod 12 is released, and the locking block 8 re-engages in the groove 10 under the action of the spring 9, fixing the position of the extension rod 5.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the top of the cross head 21, the straight head 22 and the hexagonal head 23 and the two sides of the square block 24 are all fixedly connected to the card plate 25. The bottom of the empty slot 17 and the two sides of the card slot 19 are all provided with irregular slots 20. The irregular slots 20 are used in conjunction with the card plate 25.

[0029] In this embodiment, when the square block 24 is inserted into the slot 19, the card plate 25 will be locked in the irregular groove 20.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a handle 2 is fixedly connected to the top of the rotating rod 1, and a spotlight 26 is fixedly connected to the bottom of the handle 2 and located outside the rotating rod 1. Searchlights 27 are installed at equal intervals at the bottom of the spotlight 26.

[0031] In this embodiment, a focusing cover 26 is installed at the bottom of the handle 2 and outside the rotating rod 1, and spotlights 27 are installed at equal intervals at the bottom of the focusing cover 26. When operating in a low-light environment, the spotlights 27 are turned on, and the light is focused by the focusing cover 26 to provide illumination for the operating area.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, indicator light 16 is electrically connected to magnetic block 18, and card plate 25 is made of elastic plastic.

[0033] In this embodiment, when the magnetic block 18 attracts the head and the head comes into contact with a charged object, current flows through the magnetic block 18 to illuminate the indicator light 16. The card plate 25 is made of elastic plastic and has a certain elastic deformation capability.

[0034] Working principle:

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the bottom of the first slider 4 is connected to the extension rod 5. By moving the slider within the groove, the extension rod 5 can move up and down, facilitating use in different operating spaces. The connecting block 14 is located at the bottom of the extension rod 5. The outer side of the connecting block 14 has an annular groove 15, and indicator lights 16 are installed equidistantly within the annular groove 15. The bottom of the connecting block 14 has a slot 19, and the interior of the connecting block 14 above the slot 19 has a hollow slot 17, in which a magnetic block 18 is installed. The tops of the cross head 21, the flat head 22, and the hexagonal head 23 all have square blocks 24. These square blocks 24 can slide into the slot 19 and are attracted and fixed by the magnetic action of the magnetic block 18. When the cross head, flat head, or hexagonal head comes into contact with a charged object, the current will be conducted through the square block 24 to the magnetic block 18, thereby illuminating the indicator light 16 for a warning function. The second slider 7 has a locking block 8 connected to one side. One end of the locking block 8 extends out of the extension rod 5 and engages with the groove 10 on the inner wall of the first groove 3. Spring 9 connects between the second slider 7 and the second slide groove 6, providing a restoring force for the locking block 8. A top plate 11 is located within the groove 10, with a slide rod 12 connected to one side of the top plate 11. One end of the slide rod 12 extends outward from the rotating rod 1 and is connected to a limit block 13. When the length of the extension rod 5 needs to be adjusted, pushing the slide rod 12 causes the top plate 11 to push the locking block 8 back, allowing the extension rod 5 to extend and retract within the rotating rod 1. After adjusting to the appropriate position, releasing the slide rod 12 causes the locking block 8 to re-engage in the groove 10 under the action of spring 9, fixing the position of the extension rod 5.

[0036] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A maintenance tool for relay protection, comprising a rotating rod (1), a crosshead (21), a flathead (22), and a hexagonal head (23), characterized in that: The rotating rod (1) has a first groove (3) inside, and a first slider (4) is slidably connected inside the first groove (3). An extension rod (5) is fixedly connected to the bottom of the first slider (4). The bottom of the extension rod (5) extends to the bottom of the rotating rod (1) and is fixedly connected to a connecting block (14). An annular groove (15) is provided on the outer side of the connecting block (14). Indicator lights (16) are installed at equal intervals inside the annular groove (15). A slot (19) is provided at the bottom of the block (14). A slot (17) is provided inside the connecting block (14) and above the slot (19). A magnetic block (18) is installed and connected inside the slot (17). A square block (24) is fixedly connected to the top of the cross head (21), the flat head (22), and the hexagonal head (23). The square block (24) is slidably connected to the slot (19) and magnetically connected to the magnetic block (18).

2. The relay protection maintenance tool according to claim 1, characterized in that: The extension rod (5) has a second sliding groove (6) equidistantly arranged inside. The second sliding groove (6) is slidably connected to a second slider (7). A locking block (8) is fixedly connected to one side of the second slider (7). One end of the locking block (8) extends to the outside of the extension rod (5). A spring (9) is fixedly connected between the second slider (7) and the second sliding groove (6). The inner wall of the first sliding groove (3) has a groove (10). One end of the locking block (8) cooperates with the groove (10). A top plate (11) is slidably connected inside the groove (10). A sliding rod (12) is fixedly connected to one side of the top plate (11). One end of the sliding rod (12) extends to the outside of the rotating rod (1) and is fixedly connected to a limit block (13).

3. The relay protection maintenance tool according to claim 1, characterized in that: The top of the cross head (21), the straight head (22), and the hexagonal head (23) and on both sides of the square block (24) are all fixedly connected to the card plate (25). The bottom of the empty slot (17) and on both sides of the card slot (19) are all provided with irregular grooves (20). The irregular grooves (20) are used in conjunction with the card plate (25).

4. A maintenance tool for relay protection according to claim 1, characterized in that: A handle (2) is fixedly connected to the top of the rotating rod (1), and a focusing cover (26) is fixedly connected to the bottom of the handle (2) and outside the rotating rod (1). Searchlights (27) are installed at equal intervals at the bottom of the focusing cover (26).

5. A maintenance tool for relay protection according to claim 3, characterized in that: The indicator light (16) is electrically connected to the magnetic block (18), and the card plate (25) is made of elastic plastic.

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