Tool for locking distance nut of novel pole-mounted circuit breaker

Abstract

The utility model discloses a tool for locking a novel pole-mounted circuit breaker open-range nut, which relates to the technical field of electrical switches and comprises a holding rod, a small outer hexagonal open-end wrench arranged on one side of the holding rod, a pawl arranged at the bottom end of the small outer hexagonal open-end wrench, an adjusting piece arranged at the top of the pawl and matched with the small outer hexagonal open-end wrench, and a locking piece arranged on the other side of the holding rod. The small outer hexagonal open-end wrench is connected with the holding rod through a triangular welding rib, the end of the holding rod is cylindrical, a plurality of adjusting holes are evenly formed in one side of the surface of the holding rod, a mounting hole matched with the holding rod is formed in the top of the small outer hexagonal open-end wrench, and through holes matched with the adjusting holes are formed in the middle of the triangular welding rib. The whole tool does not need to be taken out from a connecting bolt to adjust the direction to find the position of a hole again for locking, so that the installation time is greatly shortened, the overall manual installation cost is reduced, the production efficiency is improved, and the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical switches, in particular to a tool for locking a novel column-mounted circuit breaker spacing nut. Background Art

[0002] In the field of 10kV power distribution, the primary circuit of the power switch body is usually composed of the incoming line bushing, the incoming line end conductor, the isolating static end contact, the isolating knife, the isolating moving end contact, the soft connection, the vacuum interrupter, the outgoing line end conductor, the outgoing line bushing, etc. And it involves a very important step - adjusting the mechanical characteristics of the switch body (including the ABC three-phase closing bounce, closing time and opening rebound amplitude, etc.). The mechanical characteristics of the switch are related to the opening distance and overtravel of each phase debugging. Under normal circumstances, the opening distance of 9mm (plus or minus 0.5mm) is pulled out in the vacuum interrupter, and then the stroke is measured at 12mm (plus or minus 1mm). Finally, the stroke minus the opening distance is the overtravel, and the overtravel is generally around 3mm (plus or minus 0.5mm).

[0003] After pulling out the 9mm opening distance, it is necessary to lock the two nuts between the insulating rod and the screw rod on the shaft to ensure the reliability of the connection between the mechanism shaft and the insulating rod, so that the shaft and the insulating rod can keep moving synchronously, and ensure that the mechanism shaft can drive the arc extinguishing chamber in the pole, that is, the switch body, to perform normal closing and opening functions. In the process of locking the nut, there is usually a locking device, which rotates the nut with a wrench or uses a special tool to fix the nut to ensure the reliability of the connection between the two parts.

[0004] Normally, a hand-operated wrench is used to tighten the two nuts at the bottom. The upper pole and the lower table will greatly limit the movement of the wrench, thus affecting the tightness of the nuts, which will further affect the connection reliability between the mechanism shaft and the switch body and the normal operability of closing and opening the switch. Therefore, the tightness of these connecting parts is not unimportant.

[0005] At present, there are almost no tools, tooling or wrenches on the market that can be used to tighten nuts in this situation. This undoubtedly greatly increases the difficulty of manual operation in the process of locking the nuts after adjusting the opening distance and overtravel. The traditional locking method is to operate it manually with a wrench, but this method often greatly limits the range of motion of the wrench, which leads to the nut not being tightened in place. In addition, when operating the wrench with excessive force, it is easy to scratch the nut and cause the hand to be hit forward against metal objects such as sheet metal and get injured, which poses certain safety hazards.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the utility model provides a tooling for locking the spacing nut of a new type of pole-mounted circuit breaker, which has the purpose of saving effort and being safe, thereby solving the problem that the traditional locking method is operated by manually holding a wrench, but this method of operation often greatly limits the range of movement of the wrench, thereby causing the nut to not be tightened enough.

[0009] (II) Technical solution

[0010] In order to achieve the above-mentioned labor-saving and safe purpose, the specific technical solutions adopted by the utility model are as follows:

[0011] A tool for locking a novel pole-mounted circuit breaker spacing nut, comprising a grip, a small hexagonal open-end wrench is arranged on one side of the grip, a pawl is arranged at the bottom end of the small hexagonal open-end wrench, an adjusting piece matching the small hexagonal open-end wrench is arranged on the top of the pawl, the small hexagonal open-end wrench and the grip are connected through a triangular welding rib, the shape of the end of the grip is cylindrical, a plurality of adjusting holes are evenly opened on one side of the surface of the grip, a mounting hole matching the grip is opened on the top of the small hexagonal open-end wrench, and a through hole matching the adjusting hole is opened in the middle of the triangular welding rib.

[0012] Furthermore, in order to save effort and facilitate operation under the action of the adjusting member, the ratchet can be rotated forward and reversely by only adjusting the lever at the rear to achieve locking of the nut in different directions. There is no need to take out the entire tooling from the connecting bolt to turn the direction and re-locate the hole position for the locking task, which greatly speeds up the installation time and reduces the overall labor installation cost, thereby improving production efficiency and increasing product competitiveness. The adjusting member includes an active rocker arm arranged at the top of the pawl, and a lever matching a small external hexagonal open-end wrench is arranged at the top of the active rocker arm; an adjusting block is arranged at the top of the active rocker arm, and a mounting groove is arranged at the top of the adjusting block, and a top spring is arranged inside the mounting groove.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a tool for locking the spacing nut of a new type of column-mounted circuit breaker, which has the following beneficial effects:

[0015] (1) The utility model solves the problem that the nut of a conventional pole-mounted circuit breaker cannot be locked during the adjustment and installation process under the pole, thereby ensuring that the connection between the mechanism shaft and the insulating pull rod (switch body) is more firm and reliable, and effectively overcomes the problem that the switch cannot be closed or opened normally due to loose installation, thereby ensuring the normal operation of the equipment and the stability of the power grid. The utility model is suitable for narrow working environments and can smoothly complete installation and maintenance tasks in a limited space, thereby improving work efficiency. At the same time, the safety of the operator is taken into consideration in the design, avoiding the risk of injury due to excessive hand force colliding with sheet metal during the locking operation, thereby greatly reducing safety hazards during operation.

[0016] (2) The tooling is easy to use and understand, allowing operators to easily operate it even under complex or high-pressure working conditions, further improving work efficiency and safety. The eight adjustment holes of the grip can adapt to locking tasks at different position distances. The triangular welded ribs lock the position of the upper operating grip while enhancing the reliability of the overall tooling. The pawl is connected to the adjustment piece, which saves effort and is easy to operate. The ratchet can be rotated forward and reversely by adjusting the lever at the rear to achieve locking of the nut in different directions. There is no need to take the entire tooling out of the connecting bolt to turn the direction and re-locate the hole position for locking tasks. This greatly speeds up the installation time and reduces the overall labor installation cost, thereby improving production efficiency and increasing product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a tool for locking a novel column-mounted circuit breaker spacing nut according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the unfolded structure at another angle of the tooling for locking the spacing nut of a new type of pole-mounted circuit breaker according to an embodiment of the utility model;

[0020] Figure 3 It is an assembly diagram of an adjusting member and a ratchet in a tooling for locking a novel pole-mounted circuit breaker spacing nut according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Grip; 2. Small hexagon open-end wrench; 3. Ratchet; 4. Adjustment piece; 401. Active rocker arm; 402. Push rod; 403. Adjustment block; 404. Mounting slot; 405. Top spring; 5. Triangular welding rib; 6. Adjustment hole; 7. Mounting hole; 8. Through hole. DETAILED DESCRIPTION

[0023] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] According to an embodiment of the utility model, a tool for locking a novel pole-mounted circuit breaker spacing nut is provided.

[0025] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 3 As shown, according to the embodiment of the utility model, the tooling for locking the spacing nut of the new pole-mounted circuit breaker includes a grip 1, a small hexagonal open-end wrench 2 is provided on one side of the grip 1, a pawl 3 is provided at the bottom end of the small hexagonal open-end wrench 2, an adjusting piece 4 matching with the small hexagonal open-end wrench 2 is provided on the top of the pawl 3, the small hexagonal open-end wrench 2 is connected to the grip 1 by a triangular welding rib 5, the shape of the end of the grip 1 is cylindrical, a plurality of adjustment holes 6 are evenly provided on one side of the surface of the grip 1, a mounting hole 7 matching with the grip 1 is provided on the top of the small hexagonal open-end wrench 2, and a through hole 8 matching with the adjustment hole 6 is provided in the middle of the triangular welding rib 5.

[0026] It should be noted that there are eight adjustment holes 6 , and the eight holes can adjust the optimal working force position to adapt to different working distance scenarios.

[0027] With the help of the above technical solution, the utility model solves the problem that the nut of the traditional pole-mounted circuit breaker cannot be locked during the adjustment and installation process under the pole, ensures that the connection between the mechanism shaft and the insulating pull rod (switch body) is more firm and reliable, and effectively overcomes the problem that the switch cannot be normally closed or opened due to loose installation, thereby ensuring the normal operation of the equipment and the stability of the power grid. It is suitable for narrow working environments and can successfully complete installation and maintenance tasks in a limited space, thereby improving work efficiency. At the same time, the safety of the operator is taken into consideration in the design, avoiding the risk of excessive hand force and collision with sheet metal during the locking operation, greatly reducing the safety hazards during the operation. The use of the tooling is simple and easy to understand, making the operator Workers can easily operate even under complex or high-pressure working conditions, which further improves work efficiency and safety. The eight adjustment holes of the grip 1 can adapt to locking tasks at different position distances. The triangular welding rib 5 locks the position of the upper operating grip 1 while enhancing the reliability of the overall tooling. The pawl 3 is connected to the adjustment piece 4. While saving effort and easy to operate, only the rear lever needs to be adjusted to perform the forward and reverse rotation of the ratchet to achieve locking of the nut in different directions. There is no need to take out the entire tooling from the connecting bolt to turn the direction and re-find the hole position for the locking task. This greatly speeds up the installation time and reduces the overall labor installation cost, thereby improving production efficiency and increasing product competitiveness.

[0028] In one embodiment, for the above-mentioned adjusting member 4, the adjusting member 4 includes an active rocker arm 401 arranged at the top of the pawl 3, and the top of the active rocker arm 401 is provided with a lever 402 that cooperates with the small hexagonal open-end wrench 2; the top of the active rocker arm 401 is provided with an adjusting block 403, and the top of the adjusting block 403 is provided with a mounting groove 404, and the inside of the mounting groove 404 is provided with a top spring 405. Therefore, under the action of the adjusting member 4, while saving effort and being easy to operate, it is only necessary to mobilize the lever at the rear to perform the forward and reverse rotation of the ratchet to achieve the locking of the nut in different directions. There is no need to take out the entire tooling from the connecting bolt to turn the direction and re-find the position of the hole and then perform the locking task, which greatly speeds up the installation time and reduces the overall labor installation cost, thereby improving production efficiency and increasing product competitiveness.

[0029] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0030] In actual application, first find the best connection working position between the operating handle 1 and the triangular welding rib 5 below the handle 1 (there are eight adjustment holes 6 on the operating handle 1 to choose from), then use the M5*25 bolt to pass through the adjustment hole 6 and the mounting hole 7 of the handle from top to bottom, and finally connect it to the triangular welding rib 5 with a buckle, use the opening below the small hexagonal open-end wrench 2 to reach into the connecting bolt, and move it into the nut that needs to be tightened or loosened, adjust the adjustment piece 4 on the small hexagonal open-end wrench 2 as needed, and when the pawl 3 needs to be forward, turn the lever 402 of the adjustment piece 4 clockwise, and use the lever 402 to drive the right side of the active rocker 401 to hold the pawl. 3, so that the pawl 3 can only rotate clockwise; on the contrary, when the pawl 3 needs to be reversed, the lever 402 of the adjusting member 4 is rotated counterclockwise, and the lever 402 is used to drive the left side of the active swing rod 401 to hold the pawl 3, so that the pawl 3 can only rotate counterclockwise, and the pawl 3 is rotated forward or reversed to perform the next loosening or tightening task. Finally, the nut locking task can be completed by simply holding the operating handle 1 back and forth. After locking one nut, it does not need to be taken out and can be directly moved to another nut that needs to be locked on the connecting bolt. After both are completed, the pawl 3 is adjusted to the initial position to expose the opening, and the tooling is taken out from the connecting bolt to complete the entire locking task.

[0031] In addition, when tightening another nut, there is no need to remove the small wrench and re-find the hole installation position. You only need to turn the rear lever to reverse (or forward) the pawl 3 to achieve the locking of the two nuts in opposite directions; when you need to loosen it, just turn the lever in the opposite direction and then rotate it, which improves the overall work efficiency.

[0032] In summary, with the aid of the above-mentioned technical solution of the utility model, the utility model solves the problem that the nut of the traditional pole-mounted circuit breaker cannot be locked during the adjustment and installation process under the pole, ensures that the connection between the mechanism shaft and the insulating pull rod (switch body) is more firm and reliable, and effectively overcomes the problem that the switch cannot be closed and opened normally due to loose installation, thereby ensuring the normal operation of the equipment and the stability of the power grid. It is suitable for narrow working environments and can successfully complete installation and maintenance tasks in a limited space, thereby improving work efficiency. At the same time, the safety of the operator is taken into consideration in the design, avoiding the risk of injury to the sheet metal due to excessive force on the hand during the locking operation, greatly reducing the safety hazards during the operation, and the tooling is easy to use. It is easy to understand, so that operators can easily operate it even under complex or high-pressure working conditions, further improving work efficiency and safety, and the eight adjustment holes of the grip 1 can adapt to locking tasks at different position distances. The triangular welding rib 5 locks the position of the upper operating grip 1 while enhancing the reliability of the overall tooling. The pawl 3 is connected to the adjustment part 4. While saving effort and easy to operate, only the rear lever needs to be adjusted to perform the forward and reverse rotation of the ratchet to achieve locking of the nut in different directions. There is no need to take out the entire tooling from the connecting bolt to turn the direction and re-find the hole position for locking tasks. This greatly speeds up the installation time and reduces the overall labor installation cost, thereby improving production efficiency and increasing product competitiveness.

[0033] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for locking a novel pole-mounted circuit breaker spacing nut, comprising a grip rod (1), characterized in that: A small hexagonal open-end wrench (2) is arranged on one side of the grip (1); a pawl (3) is arranged at the bottom end of the small hexagonal open-end wrench (2); an adjusting piece (4) matching the small hexagonal open-end wrench (2) is arranged at the top of the pawl (3); the small hexagonal open-end wrench (2) is connected to the grip (1) via a triangular welding rib (5).

2. A tool for locking the spacing nut of a new type of column mounted circuit breaker according to claim 1, characterized in that: The shape of the end of the grip rod (1) is cylindrical.

3. A tool for locking the spacing nut of a new type of column mounted circuit breaker according to claim 2, characterized in that: A plurality of adjustment holes (6) are evenly arranged on one side of the surface of the grip rod (1).

4. A tool for locking the spacing nut of a new type of column mounted circuit breaker according to claim 3, characterized in that: The top of the small hexagonal open-end wrench (2) is provided with a mounting hole (7) that matches the grip rod (1).

5. A tool for locking the spacing nut of a new type of column mounted circuit breaker according to claim 4, characterized in that: A through hole (8) matching with the adjustment hole (6) is provided in the middle of the triangular welding rib (5).

6. The tool for locking the spacing nut of a new type of column mounted circuit breaker according to claim 1, characterized in that: The adjusting member (4) comprises an active swing rod (401) arranged at the top end of the ratchet (3), and a lever (402) matching with the small external hexagonal open-end wrench (2) is arranged at the top end of the active swing rod (401); The top end of the active swing arm (401) is provided with an adjustment block (403), the top end of the adjustment block (403) is provided with a mounting groove (404), and a top spring (405) is provided inside the mounting groove (404).

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