Remote trigger device for bolt live-line disassembly
The innovative design of the remote triggering device solves the problem of efficient disassembly of rusted bolts, enables safe and efficient spraying of loosening agents, and improves the safety and efficiency of power equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- STATE GRID SHAANXI ELECTRIC POWER CO LTD YULIN POWER SUPPLY CO
- Filing Date
- 2025-01-21
- Publication Date
- 2026-04-21
AI Technical Summary
In power systems, disassembling rusted bolts is difficult, high-altitude operations pose high safety risks, and hand-held spraying of loosening agents presents health hazards.
A remote triggering device comprising a support rod structure, a clamping structure, and a pressing structure was designed. Utilizing insulating materials and segmented sleeves, it enables remote and precise spraying of loosening agent, adaptable to different heights and aerosol can specifications.
It improves the efficiency and safety of bolt removal, reduces the risks of working at heights and the health threats of loosening agents to personnel, and enhances the flexibility and wide applicability of the device.
Smart Images

Figure CN224144558U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of power equipment maintenance, and specifically relates to a remote triggering device for live bolt disassembly. Background Technology
[0002] In power systems, the maintenance of substation equipment is crucial. When hot-point bolts in the equipment show signs of corrosion, workers face a series of challenges during bolt removal and installation. Corrosion not only complicates the process but can also affect the normal operation of the equipment. To effectively address this problem, workers typically need to first spray a loosening agent onto the hot-point bolts to remove rust, thus ensuring smooth disassembly and installation.
[0003] However, currently, the application of loosening agents mainly relies on manual operation by workers. Considering that power equipment is usually installed at high locations and the operating space for some bolts is limited, this not only poses safety hazards for working at heights but also makes it difficult to maintain a stable spraying operation for extended periods, thus affecting the rust-removing effect of the loosening agent. Furthermore, since loosening agents have a certain degree of volatility or corrosiveness, direct manual operation may also pose a potential threat to the health of workers. Summary of the Invention
[0004] This invention aims to provide a remote triggering device specifically designed for live bolt removal operations on electrical equipment. This device solves the problems encountered in existing bolt removal technologies, particularly when dealing with rusted bolts located at height or in confined operating space. Its goal is to improve the efficiency and success rate of bolt removal, ensuring that the loosening agent can penetrate evenly and efficiently into the gap between the bolt and the equipment, effectively breaking down rust and tightening forces. In this way, the bolt removal process is simplified, and the potential risks to workers performing high-altitude operations and inhaling loosening agents are reduced.
[0005] To achieve the above objectives, this utility model provides a remote triggering device for live bolt disassembly, the key of which is: a support rod structure, a clamping structure disposed on the support rod structure, and a pressing structure disposed on the clamping structure, wherein: the support rod structure includes a sleeve, a core rod disposed in the sleeve, and a handle sleeve disposed on the sleeve, the handle sleeve being mechanically linked with the pressing structure through the core rod to drive the pressing structure to apply pressure to the self-spraying valve of the loosening agent aerosol can.
[0006] Furthermore, both the sleeve and the core rod are segmented, with a core rod in each segment of the sleeve. The near-segment core rod is connected to the handle sleeve through a first strip guide groove on the near-segment sleeve, while the far-segment core rod is connected to the pressing structure through a second strip guide groove on the far-segment sleeve.
[0007] Furthermore, both the sleeve and the handle sleeve are made of insulating material.
[0008] Furthermore, the clamping structure includes a fixed clamping arm and a movable clamping arm, the gap between which serves as the clamping space for the loosening agent aerosol can, and the distance between the fixed clamping arm and the movable clamping arm is adjustable.
[0009] Furthermore, the movable clamping arm is connected to the fixed clamping arm via a guide rail, and the position of the movable clamping arm on the guide rail is adjusted by a lead screw.
[0010] Furthermore, a mounting platform with a threaded hole is formed at the end of the fixed clamping arm. The head end of the lead screw is rotatably connected to the movable clamping arm, and its end extends outward through the threaded hole and is connected to an internal hexagonal sleeve for receiving rotational power.
[0011] Furthermore, the pressing structure includes a pull rod that runs vertically through the fixed clamping arm. A connector is provided at the proximal end of the pull rod, and the connector is connected to the core rod through a first strip-shaped guide groove. An extension arm is provided at the distal end of the pull rod, and a pressing cap that can be adjusted in position along its length is provided on the extension arm. A spring is also sleeved on the pull rod between the extension arm and the fixed clamping arm.
[0012] Furthermore, a strip-shaped groove is provided along the length of the extension arm, and an adjusting screw is provided on the pressing cap that passes through the strip-shaped groove. A wing nut for locking the position of the pressing cap is provided on the adjusting screw.
[0013] Compared with the prior art, the significant advantages of this utility model are:
[0014] (1) This utility model, through its innovative support rod structure design, allows workers to operate in a safe area away from the bolt removal location, effectively avoiding the potential risks of working at height. In addition, the segmented sleeve and core rod design allows the device to be flexibly adjusted in length according to actual needs to adapt to bolt removal operations at different heights. At the same time, the use of insulating materials further enhances the safety of workers, effectively preventing electric shock accidents caused by the use of loosening agents or accidental contact with electrical equipment;
[0015] (2) This utility model ingeniously integrates clamping and pressing mechanisms. With the combined action of the handle and the pressing structure, it ensures that the loosening agent can be sprayed accurately and efficiently onto the bolt surface remotely. Especially in high-altitude operations or when the operating space is limited, this device significantly improves work efficiency and safety;
[0016] (3) By adjusting the spacing of the clamping structure and the position of the pressing structure, the device can be adapted to loosening agent aerosol cans of various sizes, thereby enhancing its wide range of applications and flexibility.
[0017] (4) The pressing cap allows for position adjustment along the length of the extension arm and achieves a secure lock through the engagement of the adjusting screw and the wing nut, accommodating the needs of different sizes of loosening agent aerosol cans. This design effectively prevents poor spraying results or operational errors caused by a loose adjusting cap. In addition, the addition of a spring allows the pressing structure to quickly reset after release, facilitating continuous operation and further improving work efficiency. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of the remote triggering device for the loosening agent in Example 1 (I);
[0020] Figure 2 This is a schematic diagram of the assembly structure of the support rod structure in Embodiment 1;
[0021] Figure 3 yes Figure 2 Enlarged view of part A in the middle;
[0022] Figure 4 This is a schematic diagram of the overall structure of the remote triggering device for the loosening agent in Example 1 (II);
[0023] Figure 5 This is a schematic diagram of the overall structure of the remote triggering device for the loosening agent in Example 1 (III);
[0024] Figure 6 yes Figure 5 Enlarged view of part B in the middle;
[0025] The diagram is labeled as follows: 1-Support rod structure, 2-Clamping structure, 3-Pressing structure, 101-Sleeve, 102-Core rod, 103-Handle sleeve, 104-First strip guide groove, 105-Second strip guide groove, 106-Inner sleeve, 107-Outer sleeve, 108-Slot, 109-Slot, 201-Fixed clamping arm, 202-Modible clamping arm, 203-Guide rail, 204-Screw rod, 205-Mounting platform, 206-Hex socket sleeve, 207-Threaded hole, 301-Pull rod, 302-Extension arm, 303-Pressing cap, 304-Spring, 305-Strip slide, 306-Adjusting screw, 307-Wing nut, 308-Connector, 4-Tank body, 5-Self-spraying valve. Detailed Implementation
[0026] 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 intended to explain this utility model, and should not be construed as limiting this utility model.
[0027] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0028] Figure 1 The first embodiment of the present invention is shown: a remote triggering device for live bolt disassembly, comprising a support rod structure 1, a clamping structure 2 disposed on the support rod structure 1, and a pressing structure 3 disposed on the clamping structure 2, wherein: the support rod structure 1 includes a sleeve 101, a core rod 102 disposed in the sleeve 101, and a handle sleeve 103 disposed on the sleeve 101, the handle sleeve 103 being mechanically linked with the pressing structure 3 through the core rod 102 to drive the pressing structure 3 to apply pressure to the self-spraying valve of the loosening agent aerosol can.
[0029] like Figure 2As shown, in specific implementation, both the sleeve 101 and the core rod 102 are segmented. Each segment of the sleeve 101 contains a core rod 102. The proximal core rod 102 is connected to the handle sleeve 103 via a first strip-shaped guide groove 104 on the proximal sleeve 101, while the distal core rod 102 is connected to the pressing structure 3 via a second strip-shaped guide groove 105 on the distal sleeve 101. The design of the first and second strip-shaped guide grooves 104 and 105 ensures stable sliding of the core rod 102 within the sleeve 101 and also provides a clear guiding path for the handle sleeve 103 and the pressing structure 3. The connection between the proximal core rod 102 and the handle sleeve 103 allows the operator to drive the corresponding movement of the proximal core rod 102 by gripping and moving the handle sleeve 103. Similarly, the connection between the distal core rod 102 and the pressing structure 3 allows the movement of the distal core rod 102 to be directly transmitted to the pressing structure 3, thereby achieving the pressure operation of the self-spraying valve of the loosening agent aerosol can. Furthermore, the segmented design of the sleeve 101 and core rod 102 facilitates the assembly and maintenance of the device, improving its practicality and convenience. Preferably, to eliminate the risk of contact points, both the sleeve 101 and the handle sleeve 103 are made of insulating material.
[0030] Please see Figure 3 In practical applications, adjacent sleeve sections 101 are nested together. Specifically, the nesting includes an inner sleeve 106 and an outer sleeve 107. The inner sleeve 106 has an L-shaped groove 108 on its wall, and the outer sleeve 107 has a retaining post 109 that mates with the groove 108. Adjacent core rod sections 102 are connected by threads. The tight fit between the inner sleeve 106 and the outer sleeve 107, thanks to the interaction between the groove 108 and the retaining post 109, effectively prevents the sleeves 101 from loosening or falling off, thus enhancing the stability and durability of the entire device. Simultaneously, the threaded connection between the core rods 102 ensures the continuity and precision of force transmission, avoiding operational errors or device damage that may result from unstable connections. Furthermore, the nested and threaded connection design not only simplifies the disassembly and assembly process of the device but also greatly facilitates daily use and maintenance for users.
[0031] like Figure 4 As shown, specifically, the clamping structure 2 includes a fixed clamping arm 201 and a movable clamping arm 202, the gap between the two serving as the clamping space for the canister 4 of the loosening agent aerosol can, and the distance between the fixed clamping arm 201 and the movable clamping arm 202 is adjustable.
[0032] from Figures 4 to 6As can be seen, the movable clamping arm 202 is connected to the fixed clamping arm 201 via a guide rail 203, and the position of the movable clamping arm 202 on the guide rail 203 is adjusted by a lead screw 204. A mounting platform 205 with a threaded hole 207 is formed at the end of the fixed clamping arm 201. The first end of the lead screw 204 is rotatably connected to the movable clamping arm 202, and its end extends outward through the threaded hole 207 and is connected to an internal hexagon socket 206 for receiving rotational power. The design of the internal hexagon socket 206 allows the user to rotate the lead screw 204 using a wrench or other tools, thereby achieving precise adjustment of the position of the movable clamping arm 202. Furthermore, the guide rail 203 not only ensures the stability of the movable clamping arm 202 during movement but also makes the adjustment of the clamping structure 2 smoother. When it is necessary to clamp the canister 4 of the loosening agent aerosol, the user only needs to rotate the internal hexagonal sleeve 206, which drives the movable clamping arm 202 to move on the guide rail 203 via the lead screw 204. After adjusting to a suitable distance, the loosening agent canister 4 can be firmly clamped between the movable clamping arm 202 and the fixed clamping arm 201. At this time, by pressing the loosening agent self-spraying valve 5 through the pressing structure 3, the loosening agent can be evenly sprayed onto the bolt, achieving rapid loosening of the bolt.
[0033] Please see Figure 5 and Figure 6 In this embodiment, the pressing structure 3 includes a pull rod 301 that vertically penetrates the fixed clamping arm 201. A connector 308 is provided at the proximal end of the pull rod 301. The connector 308 is connected to the core rod 102 through a first strip-shaped guide groove. An extension arm 302 is provided at the distal end of the pull rod 301. A pressing cap 303 that can be adjusted in position along its length is provided on the extension arm 302. A spring 304 is also sleeved on the pull rod 301 between the extension arm 302 and the fixed clamping arm 201.
[0034] A strip-shaped groove 305 is formed along the length of the extension arm 302. An adjusting screw 306, passing through the strip-shaped groove 305, is provided on the pressing cap 303. A wing nut 307 is provided on the adjusting screw 306 for locking the position of the pressing cap 303. The design of the strip-shaped groove 305 allows the adjusting screw 306 to move within a certain range, thereby enabling fine-tuning of the position of the pressing cap 303 to accommodate bolts of different sizes or operational needs. The wing nut 307 provides a convenient locking method; users can easily fix the position of the pressing cap 303 by simply rotating the nut, ensuring operational stability and accuracy.
[0035] In summary, this invention, through its innovative support rod structure 1 design, allows workers to operate from a safe area away from the bolt removal location, effectively avoiding the potential risks of working at height. Furthermore, the segmented sleeve 101 and core rod 102 design allows the device to be flexibly adjusted in length according to actual needs, adapting to bolt removal operations at different heights. Simultaneously, the use of insulating materials further enhances worker safety, effectively preventing electric shock accidents caused by the use of loosening agents or accidental contact with electrical equipment. This invention cleverly integrates clamping and pressing mechanisms; under the coordinated action of the handle sleeve 103 and the pressing structure 3, it ensures that the loosening agent can be sprayed accurately and efficiently onto the bolt surface remotely. Especially in high-altitude operations or situations with limited operating space, this device significantly improves work efficiency and safety. By adjusting the spacing of the clamping structure 2 and the position of the pressing structure 3, the device can accommodate various sizes of loosening agent aerosol cans, thereby enhancing its versatility and flexibility. The pressing cap 303 allows for position adjustment along the length of the extension arm and achieves a secure lock through the cooperation of the adjusting screw 306 and the wing nut 307, adapting to the needs of different specifications of loosening agent aerosol cans. This design effectively prevents poor spraying results or operational errors caused by a loose adjusting cap. Furthermore, the addition of the spring 304 allows the pressing structure 3 to quickly reset after release, facilitating continuous operation and further improving work efficiency.
[0036] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A remote triggering device for live bolt disassembly, characterized by: The device includes a support rod structure, a clamping structure disposed on the support rod structure, and a pressing structure disposed on the clamping structure. The support rod structure includes a sleeve, a core rod disposed in the sleeve, and a handle sleeve disposed on the sleeve. The handle sleeve is mechanically linked to the pressing structure through the core rod to drive the pressing structure to apply pressure to the self-spraying valve of the loosening agent aerosol can.
2. A remote triggering device for live bolt disassembly according to claim 1, characterized in that: Both the sleeve and the core rod are segmented, with a core rod in each segment of the sleeve. The near-segment core rod is connected to the handle sleeve through a first strip guide groove on the near-segment sleeve, while the far-segment core rod is connected to the pressing structure through a second strip guide groove on the far-segment sleeve.
3. A remote triggering device for the remote disconnection of a live bolt according to claim 2, characterized in that: Both the sleeve and the handle sleeve are made of insulating material.
4. A remote triggering device for the electrically charged disassembly of a bolt according to claim 2 or 3, characterized in that The clamping structure includes a fixed clamping arm and a movable clamping arm, the gap between which serves as the clamping space for the loosening agent aerosol can, and the distance between the fixed clamping arm and the movable clamping arm is adjustable.
5. A remote triggering device for the remote disconnection of a live bolt according to claim 4, characterized in that: The movable clamping arm is connected to the fixed clamping arm via a guide rail, and the position of the movable clamping arm on the guide rail is adjusted by a lead screw.
6. A remote triggering device for the remote disconnection of a live bolt according to claim 5, characterized in that: A mounting platform with a threaded hole is formed at the end of the fixed clamping arm. The first end of the lead screw is rotatably connected to the movable clamping arm, and its end extends outward through the threaded hole and is connected to an internal hexagonal sleeve for receiving rotational power.
7. A remote triggering device for the electrically charged disassembly of a bolt according to claim 5 or 6, characterized in that The pressing structure includes a pull rod that runs vertically through the fixed clamping arm. A connector is provided at the proximal end of the pull rod, and the connector is connected to the core rod through a first strip-shaped guide groove. An extension arm is provided at the distal end of the pull rod, and a pressing cap that can be adjusted in position along its length is provided on the extension arm. A spring is also sleeved on the pull rod between the extension arm and the fixed clamping arm.
8. A remote triggering device for the remote disconnection of a live bolt according to claim 7, characterized in that: A strip-shaped groove is provided along the length of the extension arm, and an adjusting screw is provided on the pressing cap that passes through the strip-shaped groove. A wing nut for locking the position of the pressing cap is provided on the adjusting screw.