Emergency auxiliary contact for a drop-out fuse

Abstract

The utility model discloses an emergency auxiliary contact for drop-out fuse, including support plate and mounting bracket, the top end symmetry of support plate is installed with mounting bracket, the bottom of support plate is installed with slide rail, the bottom of slide rail is installed with three groups of equal interval slide block of sliding, the bottom of slide block all is installed with support rod, the surface of support rod all is slidably sleeved with support sleeve, all are installed with the adjusting sleeve on the outer wall of support sleeve, all are slidably installed with adjusting rod in the adjusting sleeve, and adjusting rod extends to the outside of adjusting sleeve, all are installed with drive sleeve on the outer wall of adjusting rod. The utility model not only has realized the convenient emergency use of auxiliary contact to drop-out fuse, has facilitated the simple and convenient installation and dismounting of auxiliary contact, has facilitated the convenient inclined type regulation installation angle of drop-out fuse, and has facilitated the convenient regulation of drop-out fuse installation height, has increased the installation regulation range of drop-out fuse.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary contacts, in particular to an emergency auxiliary contact for a drop-out fuse. Background Art

[0002] A drop-out fuse is the most commonly used short-circuit protection switch for branch lines of 10kV power distribution lines and distribution transformers mounted on rotating poles. When installed on branch lines of 10kV power distribution lines on rotating poles, it can narrow the power outage range. Since it has an obvious breaking point and has the function of an isolating switch, it creates a safe working environment for maintenance of lines and equipment. When installed on a distribution transformer, it can serve as the main protection for the distribution transformer.

[0003] For example, an emergency auxiliary contact for a fuse disclosed in Chinese Patent No. CN101887827B with authorization announcement number comprises two contact pieces vertically fixed on both sides of a base respectively, and the cross section of the contact piece along the vertical direction is in a shape of "several".

[0004] Although it achieves simplification of the procedure for handling faulty fuses, greatly reduces the night working time and working intensity of staff, maximizes the improvement of operation safety, greatly reduces potential safety hazards in work, greatly improves the speed of power restoration, and at the same time wins valuable time for further maintenance and analysis of accident causes.

[0005] However, it fails to solve the problem that existing auxiliary contacts of this type are generally not conducive to convenient emergency use of drop-out fuses during application, are inconvenient for simple and quick installation and disassembly of the auxiliary contacts, and are inconvenient for convenient inclined adjustment of the installation angle of the drop-out fuse, which affects the installation adjustment range of the drop-out fuse. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an emergency auxiliary contact for a drop-out fuse, so as to solve the problems mentioned in the above background art that the auxiliary contact is inconvenient for convenient emergency use of the drop-out fuse, inconvenient for simple and quick installation and disassembly of the auxiliary contact, and inconvenient for convenient inclined adjustment of the installation angle of the drop-out fuse, which affects the installation adjustment range of the drop-out fuse.

[0007] To achieve the above objectives, this utility model provides the following technical solution: An emergency auxiliary contact for a drop-out fuse includes a support plate and a mounting bracket. The top of the support plate is symmetrically fitted with mounting brackets, and the bottom of the support plate is fitted with a slide rail. Three sets of equally spaced sliders are slidably mounted on the bottom of the slide rail. A support rod is mounted on the bottom of each slider. A support sleeve is slidably fitted onto the surface of each support rod. An adjusting sleeve is mounted on the outer wall of each support sleeve. An adjusting rod is slidably mounted inside each adjusting sleeve, extending to the outside of the adjusting sleeve. A driving sleeve is mounted on the outer wall of each adjusting rod. A rotating rod is movably mounted on the outer wall of each driving sleeve. The bottom of each rotating rod is fitted with... The device includes a connecting block, on the outer wall of which an mounting block is installed. A drop-out fuse body is mounted on the outer wall of each mounting block. A connector is mounted on the top of each drop-out fuse body. Mounting bolts are mounted on the outer wall of each connector, extending to the surface of the drop-out fuse body. A mounting hole is provided at the top of each connector. A left elastic contact is mounted on the outer wall of the connector on one side of the mounting hole. A left fixing bolt is mounted on the outer wall of the left elastic contact, extending to the surface of the connector. A right elastic contact is mounted on the outer wall of the connector on the side away from the left elastic contact.

[0008] Preferably, a right fixing bolt is installed on the outer wall of the right elastic contact piece, and the right fixing bolt extends to the surface of the connector.

[0009] Preferably, limit screws are symmetrically installed at the bottom of the slider on one side of the support rod, and the limit screws extend to the surface of the slide rail.

[0010] Preferably, a first bolt is installed on the outer wall of the support sleeve on one side of the support rod, and the first bolt extends to the surface of the support rod.

[0011] Preferably, a second bolt is installed on the outer wall of the adjusting sleeve near the adjusting rod, and the second bolt extends to the surface of the adjusting rod.

[0012] Preferably, a flip shaft is installed on the outer wall of the drive sleeve near the rotating rod, and the drive sleeve is movably connected to the rotating rod through the flip shaft.

[0013] Preferably, a third bolt is symmetrically installed on the top of the drive sleeve on one side of the flip shaft, and the third bolt extends to the surface of the flip shaft.

[0014] Preferably, a fourth bolt is installed on the outer wall of the drop-out fuse body near the mounting block, and the fourth bolt extends to the surface of the mounting block.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the auxiliary contact not only realizes the convenient emergency use of the auxiliary contact for the drop-out fuse, but also facilitates the simple and convenient installation and disassembly of the auxiliary contact, facilitates the convenient tilt adjustment of the installation angle of the drop-out fuse, and facilitates the convenient adjustment of the installation height of the drop-out fuse, thus increasing the installation adjustment range of the drop-out fuse. (1) Place the connector through the mounting hole onto the surface of the damaged contact of the drop-out fuse body. Manually rotate the mounting bolt to facilitate the installation of the connector onto the surface of the drop-out fuse body. Place the left elastic contact on the surface of the connector. Manually rotate the left fixing bolt to facilitate the fixing of the left elastic contact to one side of the connector. Manually place the right elastic contact on the other side of the connector. Manually rotate the right fixing bolt to facilitate the fixing of the right elastic contact to the surface of the connector. The left and right elastic contacts are positioned to facilitate contact and clamping of the upper bracket of the drop-out fuse body. The front of the upper bracket of the drop-out fuse body is precisely engaged between the left and right elastic contacts, allowing the upper and lower terminals of the drop-out fuse body to complete circuit conduction through the connector, left elastic contact, and right elastic contact, thus facilitating emergency maintenance. This enables convenient emergency use of the auxiliary contacts for the drop-out fuse, simplifies the installation and removal of the auxiliary contacts, and improves the convenience of emergency use of the auxiliary contacts. (2) The mounting bracket fixes the support plate to a suitable position. By manually rotating the fourth bolt, the drop-out fuse body can be easily installed on the surface of the mounting block. When it is necessary to adjust the spacing between multiple sets of drop-out fuse bodies, the slider drives the support rod, support sleeve, adjusting sleeve, adjusting rod, mounting block, and drop-out fuse body for convenient spacing adjustment. When the drop-out fuse body is adjusted to a suitable spacing, the limit screw is manually rotated to facilitate the change of the limit screw from the loose state to the locked state of the slider, so as to facilitate the fixing of the slider. When it is necessary to adjust the drop-out fuse body, the slider body can be installed on the surface of the mounting block. When adjusting the installation height of the fuse body, manually rotate the first bolt to loosen it from the locked position to the loosened position. Manually push the support sleeve; with the sliding support of the support rod, the support sleeve drives the drive sleeve, rotating rod, connecting block, mounting block, and the drop-out fuse body for convenient height adjustment. Once the drop-out fuse body is adjusted to the appropriate position, manually rotate the first bolt in the opposite direction to loosen it from the loosened position to the locked position. When adjusting the installation position of the drop-out fuse body, manually rotate the second bolt to loosen it from the locked position to the locked position. When the fuse body is in the loose state, manually push the adjusting rod. Under the sliding support of the adjusting sleeve, the adjusting rod drives the drive sleeve, rotating rod, connecting block, mounting block, and drop-out fuse body for easy position adjustment. After the drop-out fuse body is adjusted to the appropriate position, rotate the second bolt in the opposite direction to allow the second bolt to switch from the loose state to the locked state of the adjusting rod. When it is necessary to adjust the installation angle of the drop-out fuse body, manually rotate the two sets of third bolts to allow the third bolts to switch from the locked state to the loose state of the flip shaft. Manually push the rotating rod to allow the rotating rod to rotate around the flip shaft. The drive sleeve provides movable support for the flip shaft. The rotating rod drives the connecting block, mounting block, and drop-out fuse body to rotate. When the drop-out fuse body is adjusted to a suitable angle, the two sets of third bolts are rotated in the opposite direction to facilitate the change of the third bolts from a loose state to a locked state on the flip shaft. This allows for convenient tilting adjustment of the installation position of the drop-out fuse body, enabling convenient installation of the drop-out fuse, facilitating convenient tilting adjustment of the installation angle, and facilitating convenient adjustment of the installation height, thus increasing the installation and adjustment range of the drop-out fuse. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the support plate of this utility model; Figure 4 This is a three-dimensional structural diagram of the connector of this utility model; Figure 5This is a three-dimensional structural diagram of the left fixing bolt of this utility model; Figure 6 This is a three-dimensional structural diagram of the adjusting rod of this utility model; Figure 7 This is a three-dimensional structural diagram of the drop-out fuse body of this utility model. Figure 8 This is a three-dimensional structural diagram of the mounting bolt of this utility model.

[0017] In the diagram: 1. Support plate; 2. Mounting bracket; 3. Slide rail; 4. Slider; 5. Support rod; 6. Support sleeve; 7. Adjusting sleeve; 8. Adjusting rod; 9. Drive sleeve; 10. Rotating rod; 11. Connecting block; 12. Mounting block; 13. Drop-out fuse body; 14. Connecting piece; 15. Mounting bolt; 16. Mounting hole; 17. Left fixing bolt; 18. Left elastic contact piece; 19. Right fixing bolt; 20. Right elastic contact piece; 21. Limit screw; 22. First bolt; 23. Second bolt; 24. Flip shaft; 25. Third bolt; 26. Fourth bolt. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] Please see Figure 1-8This utility model provides an embodiment of an emergency auxiliary contact for a drop-out fuse, comprising a support plate 1 and a mounting bracket 2. The mounting bracket 2 is symmetrically mounted on the top of the support plate 1, and a slide rail 3 is mounted on the bottom of the support plate 1. Three sets of equally spaced sliders 4 are slidably mounted on the bottom of the slide rail 3. A support rod 5 is mounted on the bottom of each slider 4. A support sleeve 6 is slidably fitted onto the surface of each support rod 5. An adjusting sleeve 7 is mounted on the outer wall of each support sleeve 6. An adjusting rod 8 is slidably mounted inside each adjusting sleeve 7, extending to the outside of the adjusting sleeve 7. A driving sleeve 9 is mounted on the outer wall of each adjusting rod 8. A rotating rod 10 is movably mounted on the outer wall of each driving sleeve 9. A connecting block 11 is mounted at the bottom of each rotating rod 10, and a mounting block 12 is mounted on the outer wall of each connecting block 11. Each mounting block 12 has a drop-out fuse body 13 installed on its outer wall. Each drop-out fuse body 13 has a connector 14 installed at its top. Each connector 14 has a mounting bolt 15 installed on its outer wall, and the mounting bolt 15 extends to the surface of the drop-out fuse body 13. Each connector 14 has a mounting hole 16 at its top. Each connector 14 has a left elastic contact piece 18 installed on its outer wall on one side of the mounting hole 16. Each left elastic contact piece 18 has a left fixing bolt 17 installed on its outer wall, and the left fixing bolt 17 extends to the surface of the connector 14. Each connector 14 has a right elastic contact piece 20 installed on its outer wall away from the left elastic contact piece 18. Each right elastic contact piece 20 has a right fixing bolt 19 installed on its outer wall, and the right fixing bolt 19 extends to the surface of the connector 14. When the contacts of the drop-out fuse body 13 are damaged and need to be replaced, place the connector 14 through the mounting hole 16 onto the surface of the damaged contact of the drop-out fuse body 13. Manually rotate the mounting bolt 15 to easily install the connector 14 onto the surface of the drop-out fuse body 13. Place the left elastic contact 18 onto the surface of the connector 14. Manually rotate the left fixing bolt 17 to easily fix the left elastic contact 18 onto one side of the connector 14. Manually place the right elastic contact 20 onto the other side of the connector 14. Manually rotate the right fixing bolt 19 to easily fix the right elastic contact 20 onto the other side of the connector 14. The right elastic contact 20 is fixed to the surface of the connector 14 so that the left elastic contact 18 and the right elastic contact 20 can contact and clamp the upper bracket of the drop-out fuse body 13. The front part of the upper bracket of the drop-out fuse body 13 is just snapped between the left elastic contact 18 and the right elastic contact 20 so that the upper and lower terminals of the drop-out fuse body 13 can complete the circuit conduction through the connector 14, the left elastic contact 18, and the right elastic contact 20, so as to facilitate the effect of emergency maintenance. This realizes the convenient emergency use of the auxiliary contact for the drop-out fuse, facilitates the simple and convenient installation and disassembly of the auxiliary contact, and improves the convenience of emergency use of the auxiliary contact. Limit screws 21 are symmetrically installed at the bottom of the slider 4 on one side of the support rod 5, and the limit screws 21 extend to the surface of the slide rail 3. First bolts 22 are installed on the outer wall of the support sleeve 6 on one side of the support rod 5, and the first bolts 22 extend to the surface of the support rod 5. Second bolts 23 are installed on the outer wall of the adjusting sleeve 7 near the adjusting rod 8, and the second bolts 23 extend to the surface of the adjusting rod 8. A flip shaft 24 is installed on the outer wall of the drive sleeve 9 near the rotating rod 10, and the drive sleeve 9 is movably connected to the rotating rod 10 through the flip shaft 24. Third bolts 25 are symmetrically installed at the top of the drive sleeve 9 on one side of the flip shaft 24, and the third bolts 25 extend to the surface of the flip shaft 24. Fourth bolts 26 are installed on the outer wall of the drop-out fuse body 13 near the mounting block 12, and the fourth bolts 26 extend to the surface of the mounting block 12. When installing the drop-out fuse body 13, the support plate 1 is fixed to a suitable position using the mounting bracket 2. The fourth bolt 26 is manually rotated to easily install the drop-out fuse body 13 onto the surface of the mounting block 12. When adjusting the spacing between multiple sets of drop-out fuse bodies 13, the slider 4 is manually pushed. Under the sliding support of the slide rail 3, the slider 4 drives the support rod 5, support sleeve 6, adjusting sleeve 7, adjusting rod 8, mounting block 12, and drop-out fuse body 13 for convenient spacing adjustment. When the drop-out fuse body 13 is adjusted to a suitable spacing, the limit screw 21 is manually rotated to lock the slider 4 from the loose state. The first bolt 22 is manually rotated to loosen the support sleeve 6. When the installation height of the drop-out fuse body 13 needs adjustment, the first bolt 22 is manually rotated to loosen the support sleeve 6. The support sleeve 6 is then manually pushed, and under the sliding support of the support rod 5, it drives the drive sleeve 9, rotating rod 10, connecting block 11, mounting block 12, and the drop-out fuse body 13 for convenient height adjustment. After the drop-out fuse body 13 is adjusted to the appropriate position, the first bolt 22 is manually rotated in the opposite direction to loosen the support sleeve 6. When the installation position of the drop-out fuse body 13 needs adjustment, the second bolt 22 is manually rotated... Bolt 23 is used to facilitate the adjustment rod 8 from a locked state to a loose state. The adjustment rod 8 is manually pushed, and under the sliding support of the adjustment sleeve 7, the adjustment rod 8 drives the drive sleeve 9, rotating rod 10, connecting block 11, mounting block 12, and drop-out fuse body 13 for convenient position adjustment. After the drop-out fuse body 13 is adjusted to the appropriate position, the second bolt 23 is rotated in the opposite direction to facilitate the adjustment rod 8 from a loose state to a locked state. When it is necessary to adjust the installation angle of the drop-out fuse body 13, the two sets of third bolts 25 are manually rotated to facilitate the adjustment shaft 24 from a locked state to a loose state. The rotating rod 10 is then manually pushed to facilitate the adjustment. The rotating rod 10 rotates around the flip shaft 24, and the driving sleeve 9 provides movable support for the flip shaft 24. The rotating rod 10 drives the connecting block 11, the mounting block 12, and the drop-out fuse body 13 to rotate. When the drop-out fuse body 13 is adjusted to a suitable angle, the two sets of third bolts 25 are rotated in the opposite direction to facilitate the change of the third bolts 25 from a loose state to a locked state on the flip shaft 24. This facilitates the convenient tilting position adjustment of the installation position of the drop-out fuse body 13, realizing convenient installation of the drop-out fuse, facilitating convenient tilting adjustment of the installation angle of the drop-out fuse, facilitating convenient adjustment of the installation height of the drop-out fuse, and increasing the installation adjustment range of the drop-out fuse.

[0020] In this embodiment, the connector 14 is placed on the surface of the damaged contact of the drop-out fuse body 13 through the mounting hole 16. The mounting bolt 15 is manually rotated to facilitate the installation of the connector 14 on the surface of the drop-out fuse body 13. The left elastic contact 18 is placed on the surface of the connector 14. The left fixing bolt 17 is manually rotated to secure the left elastic contact 18 to one side of the connector 14. The right elastic contact 20 is placed on the other side of the connector 14. The right fixing bolt 19 is manually rotated to secure the right elastic contact 20 to the surface of the connector 14, thus facilitating the connection of the left and right elastic contacts 18 and 20 in the drop-out fuse body 13. The upper bracket of the fuse body 13 contacts and clamps, and the front part of the upper bracket of the drop-out fuse body 13 is precisely engaged between the left elastic contact 18 and the right elastic contact 20, so as to facilitate the circuit conduction of the upper and lower terminals of the drop-out fuse body 13 through the connector 14, the left elastic contact 18, and the right elastic contact 20, so as to facilitate the effect of emergency maintenance. The support plate 1 is fixed to a suitable position by the mounting bracket 2. The drop-out fuse body 13 is installed on the surface of the mounting block 12 by manually rotating the fourth bolt 26. When it is necessary to adjust the spacing between multiple sets of drop-out fuse bodies 13, the slider 4 is manually pushed. Under the sliding support of the slide rail 3, the slider 4 drives the support rod 5, the support sleeve 6, the adjusting sleeve 7, and the adjusting... The distance between the rod 8, mounting block 12, and drop-out fuse body 13 can be easily adjusted. When the drop-out fuse body 13 is adjusted to a suitable distance, the limit screw 21 can be manually rotated to switch the slider 4 from a loose state to a locked state, thus securing the slider 4. When the installation height of the drop-out fuse body 13 needs to be adjusted, the first bolt 22 can be manually rotated to switch the support sleeve 6 from a locked state to a loose state. The support sleeve 6 can be manually pushed, and under the sliding support of the support rod 5, the support sleeve 6 drives the drive sleeve 9, rotating rod 10, connecting block 11, mounting block 12, and drop-out fuse body 13 for convenient height adjustment. After the drop-out fuse body 13 is adjusted to a suitable position, the first bolt 22 can be manually rotated in the opposite direction. Bolt 22 is used to facilitate the transition of the first bolt 22 from a loose to a locked state on the support sleeve 6. When it is necessary to adjust the installation position of the drop-out fuse body 13, the second bolt 23 is manually rotated to facilitate the transition of the second bolt 23 from a locked to a loose state on the adjusting rod 8. The adjusting rod 8 is then manually pushed, and under the sliding support of the adjusting sleeve 7, the adjusting rod 8 drives the drive sleeve 9, rotating rod 10, connecting block 11, mounting block 12, and drop-out fuse body 13 for convenient position adjustment. After the drop-out fuse body 13 is adjusted to the appropriate position, the second bolt 23 is rotated in the opposite direction to facilitate the transition of the second bolt 23 from a loose to a locked state on the adjusting rod 8. When it is necessary to adjust the installation angle of the drop-out fuse body 13, the two sets of third bolts 25 are manually rotated.To facilitate the transition of the third bolt 25 from a locked to a loose state on the flip shaft 24, the rotating rod 10 is manually pushed to rotate around the flip shaft 24. The drive sleeve 9 provides movable support for the flip shaft 24. The rotating rod 10 drives the connecting block 11, the mounting block 12, and the drop-out fuse body 13 to rotate. When the drop-out fuse body 13 is adjusted to a suitable angle, the two sets of third bolts 25 are rotated in the opposite direction to facilitate the transition of the third bolts 25 from a loose to a locked state on the flip shaft 24. This allows for convenient tilting adjustment of the installation position of the drop-out fuse body 13, thus enabling the use of the auxiliary contacts.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An emergency auxiliary contact for a drop-out fuse, characterized in that: The system includes a support plate (1) and a mounting bracket (2). The mounting bracket (2) is symmetrically mounted on the top of the support plate (1). A slide rail (3) is mounted on the bottom of the support plate (1). Three sets of equally spaced sliders (4) are slidably mounted on the bottom of the slide rail (3). A support rod (5) is mounted on the bottom of each slider (4). A support sleeve (6) is slidably fitted on the surface of each support rod (5). An adjusting sleeve (7) is mounted on the outer wall of each support sleeve (6). An adjusting rod (8) is slidably mounted inside each adjusting sleeve (7), and the adjusting rod (8) extends to the outside of the adjusting sleeve (7). A driving sleeve (9) is mounted on the outer wall of each adjusting rod (8). A rotating rod (10) is movably mounted on the outer wall of each driving sleeve (9). A connecting block (11) is mounted on the bottom of each rotating rod (10). Mounting blocks (12) are installed on the outer walls of each component. Drop-out fuse bodies (13) are installed on the outer walls of each mounting block (12). Connectors (14) are installed at the top of each drop-out fuse body (13). Mounting bolts (15) are installed on the outer walls of each connector (14), and the mounting bolts (15) extend to the surface of the drop-out fuse body (13). Mounting holes (16) are provided at the top of each connector (14). A left elastic contact piece (18) is installed on the outer wall of each connector (14) on one side of the mounting hole (16). A left fixing bolt (17) is installed on the outer wall of each left elastic contact piece (18), and the left fixing bolt (17) extends to the surface of the connector (14). A right elastic contact piece (20) is installed on the outer wall of each connector (14) on the side away from the left elastic contact piece (18).

2. The emergency auxiliary contact for a drop-out fuse according to claim 1, characterized in that: The outer wall of each right elastic contact (20) is equipped with a right fixing bolt (19), and the right fixing bolt (19) extends to the surface of the connector (14).

3. An emergency auxiliary contact for a drop-out fuse according to claim 1, characterized in that: Limit screws (21) are symmetrically installed at the bottom of the slider (4) on one side of the support rod (5), and the limit screws (21) extend to the surface of the slide rail (3).

4. An emergency auxiliary contact for a drop-out fuse according to claim 1, characterized in that: The first bolt (22) is installed on the outer wall of the support sleeve (6) on one side of the support rod (5), and the first bolt (22) extends to the surface of the support rod (5).

5. An emergency auxiliary contact for a drop-out fuse according to claim 1, characterized in that: The adjusting sleeve (7) has a second bolt (23) installed on the outer wall of the side near the adjusting rod (8), and the second bolt (23) extends to the surface of the adjusting rod (8).

6. An emergency auxiliary contact for a drop-out fuse according to claim 1, characterized in that: The drive sleeve (9) is equipped with a flip shaft (24) on the outer wall near the rotating rod (10), and the drive sleeve (9) is movably connected to the rotating rod (10) through the flip shaft (24).

7. An emergency auxiliary contact for a drop-out fuse according to claim 6, characterized in that: The top of the drive sleeve (9) on one side of the flip shaft (24) is symmetrically equipped with a third bolt (25), and the third bolt (25) extends to the surface of the flip shaft (24).

8. An emergency auxiliary contact for a drop-out fuse according to claim 1, characterized in that: The drop-out fuse body (13) has a fourth bolt (26) installed on the outer wall of the side near the mounting block (12), and the fourth bolt (26) extends to the surface of the mounting block (12).

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