A drop-out fuse grounding device

Abstract

The utility model provides a kind of drop-out fuse grounding device, including connecting post, connecting post is connected with ground stake by ground wire, connecting post is fixedly connected with the hook that can be hung in the ring of fuse, connecting post is slidably connected with movable hook, movable hook is connected by tension spring and connecting post;It also includes the insulating rod that can be inserted into connecting post, insulating rod and connecting post are detachably connected, and insulating rod is connected with magnet having attractive effect to movable hook.The device is easy to operate, can be applied to the installation of different height drop-out fuse grounding device, and has good contact and is firm, not easy to fall, easy to assemble and disassemble, low in cost, can ensure better safety distance, to effectively protect the safety of personnel and equipment.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a grounding device for a drop-out fuse. Background Technology

[0002] A drop-out fuse is an electrical device used in power systems for overload and short-circuit protection. It is mainly installed on the high-voltage side of distribution transformers, power line branches, and at user inlets. A grounding device for a drop-out fuse is a device that installs a grounding wire on the fuse to ensure safety during equipment maintenance and other situations.

[0003] Patent CN 202178225 U discloses a grounding device for a drop-out fuse, which achieves reliable grounding by connecting a grounding ring to a grounding rod at the lower end of the drop-out fuse body with a fixing nut. However, this device has the following problems: using a nut to connect the grounding ring to the drop-out fuse is inconvenient to install due to the varying heights of drop-out fuses. Furthermore, using a nut for fixing poses a high risk of electric shock to operators, resulting in significant safety hazards. Utility Model Content

[0004] To address the problems existing in the prior art, a drop-out fuse grounding device is provided. This device is easy to operate, applicable to the installation of drop-out fuse grounding devices at different heights, provides good and secure contact, is not prone to falling off, is easy to install and disassemble, has low cost, and can ensure a good safety distance, thereby effectively protecting the safety of personnel and equipment.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] This utility model proposes a grounding device for a drop-out fuse, including a connecting post, which is connected to a grounding stake via a grounding wire. The connecting post is fixedly connected to a hook that can be hung on a ring of the fuse. A movable hook is slidably connected to the connecting post, and the movable hook is connected to the connecting post via a tension spring. It also includes an insulating rod that can be inserted into the connecting post. The insulating rod and the connecting post are detachably connected, and the insulating rod is connected to a magnet that attracts the movable hook.

[0007] Preferably, the magnetic force of the magnet is greater than the elastic force of the tension spring.

[0008] Preferably, the elastic force of the tension spring enables the movable hook to engage with the hook, thereby limiting the position of the hanging ring.

[0009] Preferably, the connecting post has a sliding hole for the insulating rod to slide into, the insulating rod is slidably connected to an insert rod, the insert rod is connected to the insulating rod through a compression spring, and the elastic force of the compression spring can keep the insert rod inside the insulating rod.

[0010] Preferably, a splined shaft is rotatably connected inside the insulating rod, and a cam is fixedly sleeved on the splined shaft. The cam is located between the insert rods, and the rotation of the cam can drive the insert rods to move away from the insulating rod.

[0011] Preferably, it also includes a handle, the handle and the insulating rod being slidably connected, a spline sleeve being movably disposed inside the handle, and the spline sleeve being slidably connected to the spline shaft.

[0012] Preferably, the handle has a groove, and the spline sleeve is fixedly connected to a lever, which is slidably disposed within the groove.

[0013] Preferably, the slide groove includes a horizontal groove and a vertical groove, which are connected. After the lever slides into the vertical groove, the rotation of the lever can be locked.

[0014] Preferably, the handle is connected to a plurality of locking plates, the locking plates are arranged in a ring and wrapped around the outside of the insulating rod, the handle is threadedly connected to a locking ring, and the contact surface between the locking ring and the locking plates is an inclined surface.

[0015] Preferably, the locking piece is made of a flexible material that can be bent. In the initial state, there is a gap between any two adjacent locking pieces, so that the insulating rod can slide freely.

[0016] Preferably, the vehicle body is also connected to a water pump and a water tank, and the water pump can deliver water from the water tank to the rotating sleeve.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model is equipped with an insulating rod. After the insulating rod is inserted into the connecting post, the magnet can attract the movable hook to move, so that the hook can be hung on the fuse. When the insulating rod is detached from the connecting post, the tension spring drives the movable hook to return to its original position. The movable hook and the hook cooperate to lock the hanging ring. It is easy to operate, has good and firm contact, is not easy to fall off, has low cost, and can ensure a good safety distance, thereby effectively protecting the safety of personnel and equipment.

[0019] 2. This utility model is equipped with a cam. By rotating the spline sleeve, the spline sleeve drives the cam to rotate through the spline shaft. The cam drives several insert rods to move out of the insulating rod, which can realize the connection between the insulating rod and the connecting post. When the spline sleeve is reset, the compression spring can drive the insert rod to reset. At this time, the detachable connection between the connecting post and the insulating rod can be easily realized, and the assembly and disassembly are convenient.

[0020] 3. This utility model is equipped with a locking ring. By loosening the locking ring, a gap is left between any adjacent locking pieces, allowing the insulating rod to slide freely and adjust the overall height of the insulating rod. By tightening the locking ring, the insulating rod can be locked. It is easy to operate and can be applied to the installation of drop-out fuse grounding devices at different heights. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a three-dimensional view of the entire utility model;

[0023] Figure 2 This is the overall front view of this utility model;

[0024] Figure 3 yes Figure 2 Cross-sectional view of the central connecting column section;

[0025] Figure 4 yes Figure 3 Top view of the cam section structure;

[0026] Figure 5 This is a cross-sectional view of the handle portion of this utility model;

[0027] Figure 6 This is a perspective view of the handle portion of this utility model;

[0028] Figure 7 This is a front view of the handle portion structure in this utility model;

[0029] Figure 8 yes Figure 6 Schematic diagram of the middle sliding groove section.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Fuse; 2. Hanging ring; 3. Cable; 4. Connecting post; 5. Grounding wire; 6. Hook; 7. Movable hook; 8. Tension spring; 9. Magnet; 10. Insert rod; 11. Compression spring; 12. Cam; 13. Splined shaft; 14. Insulating rod; 15. Splined sleeve; 16. Locking ring; 17. Locking plate; 18. Handle; 19. Lever; 20. Slide groove; 21. Grounding post. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] like Figures 1-8 As shown, this embodiment proposes a drop-out fuse grounding device, including a connecting post 4. The connecting post 4 is connected to a grounding stake 21 via a grounding wire 5. The connecting post 4 is fixedly connected to a hook 6 that can be hung on a hanging ring 2 of the fuse 1. The fuse 1 includes a cable 3. The hanging ring 2 is an inherent structure of the fuse 1 itself, and the hook 6 can be hung on the hanging ring 2. Several grounding wires 5 can be connected to the same grounding stake 21, thereby realizing the grounding of the fuse 1 and ensuring safety during fuse 1 maintenance and other situations.

[0034] The connecting post 4 is slidably connected to a movable hook 7. The movable hook 7 is connected to the connecting post 4 via a tension spring 8. The tension spring 8 is sleeved on the movable hook 7. The upper end of the tension spring 8 is connected to the connecting post 4, and the lower end of the tension spring 8 is connected to the movable hook 7. The elastic force of the tension spring 8 can make the movable hook 7 cooperate with the hook 6, so that the movable hook 7 and the hook 6 come into contact, thereby achieving the limiting of the hanging ring 2.

[0035] It also includes an insulating rod 14 that can be inserted into the connecting post 4. The insulating rod 14 and the connecting post 4 are detachably connected. The insulating rod 14 is connected to a magnet 9 that attracts the movable hook 7. The magnetic force of the magnet 9 is greater than the elastic force of the tension spring 8. When the insulating rod 14 is inserted into the connecting post 4, it can attract the movable hook 7, thereby disengaging the movable hook 7 from the hook 6.

[0036] After the insulating rod 14 is inserted into the connecting post 4, the magnet 9 can attract the movable hook 7 to move, so that the hook 6 can be hung on the fuse 1. When the insulating rod 14 is separated from the connecting post 4, the tension spring 8 drives the movable hook 7 to reset. The movable hook 7 cooperates with the hook 6 to lock the hanging ring 2. It is easy to operate, has good and firm contact, is not easy to fall off, has low cost, and can ensure a good safety distance, thereby effectively protecting the safety of personnel and equipment.

[0037] The connecting post 4 has a sliding hole for the insulating rod 14 to slide into. The insulating rod 14 is slidably connected to the insert rod 10. The insert rod 10 is connected to the insulating rod 14 through a compression spring 11. The compression spring 11 is sleeved on the insert rod 10. One end of the compression spring 11 is connected to the insert rod 10, and the other end of the compression spring 11 is connected to the insulating rod 14. The elastic force of the compression spring 11 can keep the insert rod 10 inside the insulating rod 14.

[0038] A limiting rod is provided inside the connecting column 4. The limiting rod is located on one side of the movable hook 7. The limiting rod is used to limit the movement of the insulating rod 14. The diameter of the sliding hole is larger than the diameter of the insulating rod 14, so as to facilitate the sliding of the insulating rod 14. When the insulating rod 14 slides into the connecting column 4 through the sliding hole, the insulating rod 14 abuts against the limiting rod, indicating that the insulating rod 14 has moved to the end. At this time, the magnet 9 attracts the movable hook 9.

[0039] A splined shaft 13 is rotatably connected inside the insulating rod 14. A cam 12 is fixedly sleeved on the splined shaft 13. The cam 12 is located between the insert rods 10. The rotation of the cam 12 can drive the insert rods 10 to move away from the insulating rod 14. There are a total of several insert rods 10. When the cam 12 rotates, it can drive several insert rods 10 to move simultaneously, so that the insert rods 10 move into the connecting post 4. At this time, the insert rods 10 are located above the sliding hole and the insert rods 10 are in contact with the connecting post 4, so as to realize the connection between the insulating rod 14 and the connecting post 4.

[0040] It also includes a handle 18, which is slidably connected to an insulating rod 14. A spline sleeve 15 is movably disposed inside the handle 18, and the spline sleeve 15 is slidably connected to a spline shaft 13. When the spline sleeve 15 rotates, it can drive the spline shaft 13 to rotate simultaneously, thereby driving the cam 12 to rotate. The spline sleeve 15 can move freely inside the handle 18.

[0041] By rotating the spline sleeve 15, the spline sleeve 15 drives the cam 12 to rotate via the spline shaft 13. The cam 12 drives several insert rods 10 to move out of the insulating rod 14, which can realize the connection between the insulating rod 14 and the connecting post 4. When the spline sleeve 15 is reset, the compression spring 11 can drive the insert rods 10 to reset. At this time, the detachable connection between the connecting post 4 and the insulating rod 14 can be easily realized, making assembly and disassembly convenient.

[0042] The handle 18 has a slide groove 20, and the spline sleeve 15 is fixedly connected to the lever 19. The lever 19 is slidably disposed in the slide groove 20. The slide groove 20 includes a horizontal groove and a vertical groove, which are connected. After the lever 19 slides into the vertical groove, the rotation of the lever 19 can be locked.

[0043] When the lever 19 slides in the horizontal groove, it can rotate around the handle 18. The lever 19 drives the spline sleeve 15 to rotate. When the lever 19 slides from the horizontal groove into the vertical groove, it cannot rotate. This limits the rotation of the lever 19, thereby limiting the cam 12 and connecting the insulating rod 14 and the connecting post 4.

[0044] The handle 18 is connected to several locking plates 17. The locking plates 17 are arranged in a ring and wrap around the outside of the insulating rod 14. The handle 18 is threadedly connected to a locking ring 16. The contact surface between the locking ring 16 and the locking plates 17 is inclined. The locking plates 17 are made of flexible material that can be bent. In the initial state, there is a gap between any adjacent locking plates 17, so that the insulating rod 14 can slide freely.

[0045] By loosening the locking ring 16, a gap is left between any adjacent locking pieces 17, allowing the insulating rod 14 to slide freely and adjust the overall height of the insulating rod 14. By tightening the locking ring 16, the insulating rod 14 can be locked. The operation is convenient and applicable to the installation of drop-out fuse grounding devices at different heights.

[0046] The specific working process is as follows: By loosening the locking ring 16, the length of the insulating rod 14 can be freely adjusted. By tightening the locking ring 16, the insulating rod 14 is locked. Then, the insulating rod 14 is inserted into the connecting post 4. By rotating the lever 19, the lever 19 drives the spline sleeve 15 to rotate. The spline sleeve 15 drives the cam 12 to rotate through the spline shaft 13. The cam 12 drives several insert rods 10 to move out of the insulating rod 14. At the same time, the magnet 9 of the insulating rod 14 drives the movable hook 7 to move, so that the hook 6 can be hung on the hanging ring 2.

[0047] After installation, rotating lever 19 resets spline sleeve 15, which in turn resets cam 12. At this time, insert rod 10 moves back to insulating rod 14, thus achieving detachable connection between insulating rod 14 and connecting post 4. Then, the insulating rod is pulled out, and under the action of tension spring 8, movable hook 7 resets. Movable hook 7 and hook 6 cooperate to limit the hanging ring 2, thereby achieving grounding of fuse 1.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A grounding device for a drop-out fuse, comprising a connecting post (4), wherein the connecting post (4) is connected to a grounding stake (21) via a grounding wire (5), characterized in that, The connecting post (4) is fixedly connected to a hook (6) that can be hung on the hanging ring (2) of the fuse (1). The connecting post (4) is slidably connected to a movable hook (7). The movable hook (7) is connected to the connecting post (4) through a tension spring (8). It also includes an insulating rod (14) that can be inserted into the connecting post (4). The insulating rod (14) and the connecting post (4) are detachably connected. The insulating rod (14) is connected to a magnet (9) that attracts the movable hook (7).

2. The grounding device for a drop-out fuse according to claim 1, characterized in that, The magnetic force of the magnet (9) is greater than the elastic force of the tension spring (8).

3. The grounding device for a drop-out fuse according to claim 1, characterized in that, The elastic force of the tension spring (8) enables the movable hook (7) to cooperate with the hook (6), thereby limiting the position of the hanging ring (2).

4. A grounding device for a drop-out fuse according to claim 1, characterized in that, The connecting post (4) has a sliding hole for the insulating rod (14) to slide into. The insulating rod (14) is slidably connected to the insert rod (10). The insert rod (10) is connected to the insulating rod (14) through a compression spring (11). The elastic force of the compression spring (11) can make the insert rod (10) located inside the insulating rod (14).

5. A grounding device for a drop-out fuse according to claim 4, characterized in that, The insulating rod (14) is rotatably connected to a spline shaft (13), and the spline shaft (13) is fixedly fitted with a cam (12). The cam (12) is located between the insert rods (10), and the rotation of the cam (12) can drive the insert rods (10) to move away from the insulating rod (14).

6. A grounding device for a drop-out fuse according to claim 5, characterized in that, It also includes a handle (18), which is slidably connected to the insulating rod (14). A spline sleeve (15) is movably disposed inside the handle (18), and the spline sleeve (15) is slidably connected to the spline shaft (13).

7. A grounding device for a drop-out fuse according to claim 6, characterized in that, The handle (18) has a groove (20), and the spline sleeve (15) is fixedly connected to a lever (19), which is slidably disposed in the groove (20).

8. A grounding device for a drop-out fuse according to claim 7, characterized in that, The slide (20) includes a horizontal groove and a vertical groove, which are connected. After the lever (19) slides into the vertical groove, it can lock the rotation of the lever (19).

9. A grounding device for a drop-out fuse according to claim 6, characterized in that, The handle (18) is connected to several locking plates (17), the locking plates (17) are arranged in a ring and wrapped around the outside of the insulating rod (14), and the handle (18) is threadedly connected to a locking ring (16), the contact surface between the locking ring (16) and the locking plate (17) is an inclined surface.

10. A grounding device for a drop-out fuse according to claim 9, characterized in that, The locking piece (17) is made of a flexible material that can be bent. In the initial state, there is a gap between any two adjacent locking pieces (17), so that the insulating rod (14) can slide freely.

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