Ground potential hot-line work universal bolt fastening device and use method thereof

Abstract

The invention discloses a ground potential hot-line work universal bolt fastening device and a use method thereof, and relates to the technical field of electric power auxiliary tools, the ground potential hot-line work universal bolt fastening device comprises a tool box, a bolt fastening device, a connector and an operating rod are arranged in the tool box, the operating rod is connected with the connector, the connector is in threaded connection with a connecting plate, and the connecting plate is in threaded connection with the operating rod. The connecting plate is connected with a damping rotating shaft. According to the device disclosed by the invention, tools required in a bolt fastening process are integrated into a whole; different types of damping rotating shafts are connected between the insulating operating rod and the wrench, so that bolts of different heating parts, different models and angles can be fastened by pulling or rotating the insulating operating rod without power failure and without direct contact of operators with an electrified body, and the problem that existing bolt fastening work is difficult to complete is solved; the bolt fastening tool is convenient to carry, and meanwhile the problem that the device is prone to falling and losing in the transportation process is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of power-assisted tools, and in particular relates to a universal bolt fastening device for ground potential live working and a method for using the same. Background Art

[0002] Outdoor electrical equipment operates outdoors and is exposed to the natural environment for a long time. Affected by factors such as thermal expansion and contraction caused by temperature changes and continuous vibration caused by breeze, the equipment connection bolts are prone to loosening, resulting in poor contact and decreased tightness of the equipment connection points, which in turn causes heat at the contact points, directly threatening the normal operation of the lines.

[0003] There are two main conventional treatment methods:

[0004] 1. Eliminate power outage;

[0005] 2. Use equipotential live working method to implement tightening.

[0006] However, in the scenarios of power transmission and substation equipment, due to the dense and crisscrossing layout of conductors and the relatively narrow working space, the tightening work is greatly restricted, and the tightening of some heating bolts is difficult to complete through equipotential live operations.

[0007] Therefore, it is necessary to design a universal bolt fastening device for ground potential live working and a method of using the same to solve the problems raised in the above background technology. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to solve the deficiencies in the prior art and to design a universal bolt tightening device for live working at ground potential. This new universal bolt tightening device for live working at ground potential has a perfect structure. First, the tools required in the bolt tightening process are integrated into a whole. Secondly, by connecting different types of damping shafts between the insulating operating rod and the wrench, bolts of different heating parts, different models and angles can be tightened by pulling or rotating the insulating operating rod without power outage or direct contact of the operator with the live body, thereby solving the problem that the existing bolt tightening work is difficult to complete, making the bolt tightening tool easy to carry, and avoiding the problem of the device being easily dropped and lost during transportation.

[0009] The solution adopted by the present invention to solve its technical problems is:

[0010] A universal bolt fastening device for ground potential live working,

[0011] It is characterized by:

[0012] The tool box comprises a box body and a box cover, wherein a bolt fastening device, a connecting head and an operating rod are arranged in the box body.

[0013] The operating rod is connected to the connecting head, the connecting head is threadedly connected to a connecting plate, the connecting plate is connected to a damping shaft, and the operating rod is connected to the bolt fastening device through the connecting head, the connecting plate and the damping shaft.

[0014] The connector includes a connecting pipe and a fixed pipe, the fixed pipe is sleeved on the outside of the connecting pipe, a first limiting plate is provided on the side of the fixed pipe, a second limiting plate is provided on the side of the connecting pipe, and a return spring is provided between the first limiting plate and the second limiting plate.

[0015] The return spring has an energy storage state when the first limit plate drives it to be compressed, and a release state when the first limit plate is pushed in the reverse direction.

[0016] The side of the fixed pipe is provided with a first prefabricated groove, a fixing rod is provided in the first prefabricated groove, and a second prefabricated groove corresponding to the fixing rod is provided in the connecting pipe. The fixing rod is fixed in the first prefabricated groove and the second prefabricated groove and moves up and down.

[0017] The connecting plate comprises a threaded tube and a mounting plate. The threaded tube and the connecting tube are threadedly connected. The end of the threaded tube is provided with a fixing groove corresponding to the fixing rod.

[0018] As a preferred embodiment of the present invention,

[0019] The damping shaft includes a first damping shaft,

[0020] The bolt fastening device is connected to the connecting head via the first damping shaft.

[0021] The first damping shaft comprises a male shaft, an adjusting member, a female shaft and a fixing plate. The adjusting member connects the male shaft and the female shaft, and the torque of the first damping shaft is adjusted by the adjusting member. The fixing plate is fixed to the end of the male shaft.

[0022] The bolt includes an adjustment block and a threaded rod, the threaded rod connects the male shaft and the female shaft, and the female shaft is provided with an adjustment slot for placing the adjustment block.

[0023] The bolt fastening device is fixed to the side of the fixing plate, and the female shaft is fixed to the side of the mounting plate.

[0024] As a preferred embodiment of the present invention,

[0025] The first damping shaft has a T-shaped appearance.

[0026] The male shaft, the adjusting member and the female shaft are arranged on the same straight line, and the fixing plate and the male shaft are arranged perpendicularly.

[0027] As a preferred embodiment of the present invention,

[0028] The damping shaft includes a second damping shaft,

[0029] The bolt fastening device is connected to the connecting head via the second damping shaft.

[0030] The second damping shaft includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are connected by a hinge shaft, and a friction plate group is provided between the first connecting plate and the end of the hinge shaft, the first connecting plate and the second connecting plate, and the second connecting plate and the end of the hinge shaft.

[0031] The first connecting piece is fixed to a side of the mounting plate, and the second connecting piece is fixed to a side of the bolt fastening device.

[0032] As a preferred embodiment of the present invention,

[0033] When the first connecting piece is connected to the mounting plate and the second connecting piece is connected to the bolt fastening device, the angle between the first connecting piece and the second connecting piece is between 20° and 340°.

[0034] As a preferred embodiment of the present invention,

[0035] The first connecting piece, the mother shaft and the mounting plate are all provided with corresponding first mounting holes, the second connecting piece, the connecting plate and the bolt fastening device are all provided with corresponding second mounting holes, and butterfly bolts are provided in the first connecting hole and the second connecting hole.

[0036] As a preferred embodiment of the present invention,

[0037] The fixing groove includes a first fixing groove and a second fixing groove, and the first fixing groove and the second fixing groove are arranged in a cross shape.

[0038] As a preferred embodiment of the present invention,

[0039] The bolt tightening device comprises a first wrench and a second wrench,

[0040] The first wrench is a ratchet wrench, and the second wrench is a socket wrench.

[0041] As a preferred embodiment of the present invention,

[0042] The torsional force of the damping shaft is 3 N.m.

[0043] A method for using a universal bolt fastening device for ground potential live working, comprising the following steps:

[0044] The first step is to pull down the fixed tube to compress the return spring to the energy storage state.

[0045] The second step is to connect the connecting pipe and the threaded pipe. After the connection is completed, loosen the fixing pipe and the reset spring releases energy to drive the fixing rod into the fixing groove.

[0046] The third step is to select the first wrench or the second wrench for fastening according to the actual situation on site and the different positions of the bolts to be fastened and the working space in which they are located.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] The device of the present invention designs and integrates the bolt tightening tools into one body and places them in a dedicated tool box, thereby improving work efficiency and convenience.

[0049] 1. By connecting different types of damping shafts between the insulating operating rod and the wrench, bolts of different heating locations, sizes, and angles can be tightened simply by pulling or turning the insulating operating rod, without power outages or direct contact between operators and live parts. Furthermore, the present invention utilizes simple, reusable materials, and can complete bolt tightening operations without power outages. This method improves line power supply reliability, saves labor costs, and is simple to operate and highly practical.

[0050] 2. This invention enables bolts of different heating locations, sizes, and angles to be tightened using live-line work at ground potential without shutting down the line. This solves the problem of live equipment requiring power outages or equal-potential work to address loose bolts. It simplifies the work method, improves work efficiency and safety, reduces power outages, and enhances power supply reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a schematic diagram of the overall structure of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0052] Figure 2 This is a structural schematic diagram of a certain embodiment of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0053] Figure 3 This is a structural schematic diagram of a certain embodiment of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0054] Figure 4 This is a schematic structural diagram of the first damping shaft of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0055] Figure 5A schematic diagram of a first wrench of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0056] Figure 6 A schematic diagram of a first wrench of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0057] Figure 7 This is a schematic structural diagram of the second damping shaft of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0058] Figure 8 This is a partial schematic diagram of a connecting head of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0059] Figure 9 This is a partial schematic diagram of a connecting head of a universal bolt fastening device for ground potential live working proposed by the present invention;

[0060] Figure 10 This is a schematic diagram of the distribution of fixing slots of a universal bolt fastening device for ground potential live working proposed by the present invention.

[0061] Description of reference numerals:

[0062] 1. Toolbox,

[0063] 1-1, cabinet,

[0064] 1-2. Box cover,

[0065] 2. Bolt fastening device,

[0066] 2-1, the first wrench,

[0067] 2-2, the second wrench,

[0068] 3. Connector,

[0069] 3-1, connecting pipe,

[0070] 3-2, fixed pipe,

[0071] 3-3, the first limit plate,

[0072] 3-4, the second limit plate,

[0073] 3-5, return spring,

[0074] 3-6, the first prefabricated trough,

[0075] 3-7, fixed rod,

[0076] 4. Operation lever,

[0077] 5. Connecting plate,

[0078] 5-1, threaded pipe,

[0079] 5-2, fixed slot,

[0080] 5-2-1, the first fixing slot,

[0081] 5-2-2, the second fixing slot,

[0082] 5-3, Mounting plate,

[0083] 6. Damping shaft,

[0084] 6-1. The first damping shaft,

[0085] 6-1-1, male shaft,

[0086] 6-1-2, adjustment parts,

[0087] 6-1-3, female shaft,

[0088] 6-1-4, fixed plate,

[0089] 6-1-5, adjustment block,

[0090] 6-1-6, threaded rod,

[0091] 6-1-7, adjustment slot,

[0092] 6-2, the second damping shaft,

[0093] 6-2-1, first connecting piece,

[0094] 6-2-2, the second connecting piece,

[0095] 7. The first mounting hole,

[0096] 8. Second mounting hole,

[0097] 9. Butterfly bolt. DETAILED DESCRIPTION

[0098] The specific implementation of the present invention is described below with reference to the accompanying drawings and embodiments:

[0099] It should be noted that the structures, colors, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0100] At the same time, in the description of the present invention, it should be understood that the terms "one end", "the other end", "middle", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0101] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0102] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like 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 present invention according to the specific circumstances.

[0103] like Figures 1-10 As shown, the present invention provides a universal bolt fastening device for ground potential live working, wherein a bolt fastening device set is placed in a box, and tools required for bolt fastening are stored in one box, which is convenient for carrying and use.

[0104] Specifically, the toolbox 1 comprises a box body 1-1 and a box cover 1-2, wherein the box body 1-1 and the box cover 1-2 are hingedly connected by a hinge or similar tool to enable the operation of opening and closing the toolbox 1. Accordingly, the switch box is provided with grooves / protrusions for fixing the box body 1-1 and the box cover 1-2, corresponding buckles thereto, and a handle for a worker to carry the toolbox.

[0105] A bolt tightening device 2, a connecting head 3 and an operating rod 3-4 are provided in the box body 1-1. The operating rod 3-4 and the bolt tightening device 2 are connected through the connecting head 3. The bolt tightening device 2 is sent to the outside of the bolt to be tightened through the operating rod 3-4. At the same time, different operations are performed by controlling the operating rod 3-4 to drive the bolt tightening device 2 to rotate, thereby completing the tightening of the bolt.

[0106] The operating rod 3-4 is connected to the connector 3, and the connector 3 is fixed to the end of the operating rod 3-4 by common methods such as sleeve connection or integral molding. The connector 3 is threadedly connected to a connecting plate 5. The tubular structure of the connector 3 is provided with an internal thread, and the end of the connecting plate 5 is provided with an external thread corresponding to the internal thread. During installation, the end of the connecting plate 5 is inserted into the connector 3 and tightened to complete the fixation. The connecting plate 5 is connected to a damping shaft 6. The operating rod 3-4 is connected to the bolt fastening device 2 through the connector 3, the connecting plate 5, and the damping shaft 6. The torsional force of the damping shaft 6 provides force to the bolt fastening device 2, so that the bolt fastening device 2 drives the bolt to rotate, completing the tightening of the bolt.

[0107] Preferably, grooves for fixing the bolt fastening device 2, the connecting head 3 and the operating levers 3-4 can also be provided in the toolbox 1. The shape of the grooves corresponds to the shape of the tools in the toolbox 1. When the tools shake during placement and carrying, they collide with each other and cause unnecessary wear of the tools.

[0108] The connecting head 3 includes a connecting tube 3-1 and a fixed tube 3-2, the fixed tube 3-2 is sleeved on the outside of the connecting tube 3-1, a first limit plate 3-3 is provided on the side of the fixed tube 3-2, a second limit plate 3-4 is provided on the side of the connecting tube 3-1, a return spring 3-5 is provided between the first limit plate 3-3 and the second limit plate 3-4, the return spring 3-5 has an energy storage state when the first limit plate 3-3 drives it to be compressed and a release state when the first limit plate 3-3 is pushed in the reverse direction, a first prefabricated groove 3-6 is provided on the side of the fixed tube 3-2, a fixing rod 3-7 is provided in the first prefabricated groove 3-6, and a second prefabricated groove corresponding to the fixing rod 3-7 is provided in the connecting tube 3-1. The fixing rod 3-7 is fixed in the first precast groove 3-6 and the second precast groove and moves up and down to connect and disconnect the connecting tube 3-1 and the threaded tube 5-1. The fixing rod 3-7 moves up and down in the first precast groove 3-6 and the second precast groove, allowing it to enter or leave the fixing groove 5-2. The connecting plate 5 includes a threaded tube 5-1 and a mounting plate 5-3. The threaded tube 5-1 is threadedly connected to the connecting tube 3-1. The end of the threaded tube 5-1 is provided with a fixing groove 5-2 corresponding to the fixing rod 3-7.

[0109] The fixing tube 3-2 is arranged on the outside of the connecting tube 3-1 and moves up and down. Through the first limit plate 3-3, the second limit plate 3-4 and the spring therebetween, the return spring 3-5 has the function of compressing and releasing the fixing tube 3-2 when it moves up and down along the connecting tube 3-1. When the fixing tube 3-2 moves downward, the first limit plate 3-3 moves downward accordingly, driving the return spring 3-5 to compress and enter the energy storage state; after the connection is completed, the fixing tube 3-2 is released, and the return spring 3-5 enters the release state, and the elastic potential energy of the return spring 3-5 pushes the first limit plate 3-3 upward in the opposite direction, thereby driving the fixing rod 3-7 to be stuck in the fixing groove 5-2, completing the secondary fixation between the connecting tube 3-1 and the threaded tube 5-1, and ensuring the stability of the device during use.

[0110] As another embodiment of the present invention,

[0111] The damping shaft 6 includes a first damping shaft 6-1, and the bolt fastening device 2 is connected to the connecting head 3 through the first damping shaft 6-1. A first damping shaft 6-1 corresponding to the structure and usage method of the bolt fastening device 2 is provided to realize remote control of the bolt fastening device 2 to complete bolt fixing.

[0112] During specific use, when it is necessary to fix the bolts on the top of the operating rod 3-4, the bolt tightening device 2 can be selected to complete the fixing of the bolts. When the working space is larger, a more suitable wrench can be selected. When the working space is smaller, a smaller wrench can be selected. Different bolt tightening tools can be selected according to the actual situation on site to complete the tightening of the bolts.

[0113] The first damping shaft 6-1 includes a male shaft 6-1-1, an adjusting member 6-1-2, a female shaft 6-1-3 and a fixed plate 6-1-4. The adjusting member 6-1-2 connects the male shaft 6-1-1 and the female shaft 6-1-3. The torque of the first damping shaft 6-1 is adjusted by the adjusting member 6-1-2. The fixed plate 6-1-4 is fixed to the end of the male shaft 6-1-1. The male shaft 6-1-1, the adjusting member 6-1-2 and the female shaft 6-1-3 are the basic structure of the first damping shaft 6-1, forming an arbitrary stop damping shaft 6 torque hinge. The female shaft 6-1-3 is fixed to the side of the mounting plate 5-3, and the fixed plate 6-1-4 is fixed to the end of the male shaft 6-1-1 for fixing the first damping shaft 6-1.

[0114] The bolt includes an adjusting block 6-1-5 and a threaded rod 6-1-6, the threaded rod 6-1-6 connects the male shaft 6-1-1 and the female shaft 6-1-3, the female shaft 6-1-3 is provided with an adjusting groove 6-1-7 for placing the adjusting block 6-1-5, the adjusting block 6-1-5 is placed in the adjusting groove 6-1-7, and the torque of the first damping shaft 6-1 is adjusted by rotating the adjusting block 6-1-5 extending out of the adjusting groove 6-1-7.

[0115] The bolt tightening device 2 is fixed to the side of the fixing plate 6-1-4, and the female shaft 6-1-3 is fixed to the side of the mounting plate 5-3. The female shaft 6-1-3 is fixed to the operating lever 3-4 through the mounting plate 5-3 and other components. By rotating the operating lever 3-4, the female shaft 6-1-3 rotates, thereby driving the male shaft 6-1-1 and the fixing plate 6-1-4 fixed thereto to rotate. The fixing plate 6-1-4 then drives the bolt tightening device 2 to rotate, achieving bolt tightening.

[0116] As another embodiment of the present invention,

[0117] The first damping shaft 6-1 has an appearance of a T-shaped structure, and the male shaft 6-1-1, the adjusting member 6-1-2 and the female shaft 6-1-3 are arranged on the same straight line, and the three are vertically fixed on the operating rod 3-4. The fixing plate 6-1-4 and the male shaft 6-1-1 are arranged vertically, that is, vertically arranged on the operating rod 3-4, forming a T-shaped structure, corresponding to the bolt at the top of the operating rod 3-4. When the working space is sufficient, a more stable large wrench can be used for fixing, and the fastening structure of the large structure corresponds to the bolt. If the working space is insufficient, a small wrench can also be used for fixing. The fastening structure of the small wrench corresponds to the bolt. The fixing method and fixing tool can be selected according to actual conditions, and the fastening part of the bolt fastening device 2 can be matched with the bolt. Bolts in different positions can be fixed accordingly, effectively increasing the adaptability of the device of the present invention.

[0118] The bolt fastening device 2 is fixed on the top horizontal structure of the first damping shaft 6-1, and the vertical structure of the first damping shaft 6-1 is fixed on the operating rod 3-4 to complete the connection between the operating rod 3-4 and the bolt fastening device 2, and complete the force transmission between the two through the first damping shaft 6-1.

[0119] As another embodiment of the present invention,

[0120] The damping shaft 6 includes a second damping shaft 6-2, the bolt fastening device 2 is connected to the connecting head 3 through the second damping shaft 6-2, the second damping shaft 6-2 includes a first connecting plate 6-2-1 and a second connecting plate 6-2-2, the first connecting plate 6-2-1 and the second connecting plate 6-2-2 are connected through a hinge shaft, and friction plate groups are provided between the first connecting plate 6-2-1 and the end of the hinge shaft, the first connecting plate 6-2-1 and the second connecting plate 6-2-2, and the second connecting plate 6-2-2 and the end of the hinge shaft. The torque between the first connecting plate 6-2-1 and the second connecting plate 6-2-2 is generated by the friction plate group to complete the force transmission between the two.

[0121] The first connecting piece 6-2-1 is fixed to the side of the mounting plate 5-3, and the second connecting piece 6-2-2 is fixed to the side of the bolt fastening device 2. The second damping shaft 6-2 connects the operating lever 3-4 and the bolt fastening device 2, transmitting force between them. Pulling the operating lever 3-4 up and down drives the bolt fastening device 2 to rotate, completing the bolt fastening.

[0122] As another embodiment of the present invention,

[0123] When the first connecting piece 6-2-1 is connected to the mounting plate 5-3 and the second connecting piece 6-2-2 is connected to the bolt fastening device 2, the angle between the first connecting piece 6-2-1 and the second connecting piece 6-2-2 is between 20°-340°. The first connecting piece and the second connecting piece 6-2-2 can be rotated arbitrarily, and the rotation angle between the two can be between 0° and 360°. In order to reduce friction between tools during use, the rotation angle between the first connecting piece and the second connecting piece 6-2-2 is limited.

[0124] By providing a limiting protrusion and a limiting block at the hinge, the maximum and minimum angles are limited by the rigid contact between the two. This limits the angle between the first connecting piece 6-2-1 and the second connecting piece 6-2-2, that is, the angle that can be rotated between the bolt tightening device 2 and the operating lever 3-4 is limited. That is, the bolt tightening device 2 can only rotate along the operating lever 3-4 within a limited range to tighten the bolt.

[0125] Preferably, a wear-resistant gasket such as a brass sheet can be embedded on the limiting contact surface and grease can be applied to reduce wear during rotation and noise generated during collision.

[0126] As another embodiment of the present invention,

[0127] The first connecting piece 6-2-1, the mother shaft 6-1-3 and the mounting plate 5-3 are all provided with corresponding first mounting holes 7. The first connecting piece 6-2-1 and the mother shaft 6-1-3 are both fixed to the side of the mounting plate 5-3 through the first mounting holes 7 and their corresponding bolts, connecting rods and other structures.

[0128] The first mounting hole 7 of the first connecting plate 6-2-1 and the first mounting hole 7 of the mother shaft 6-1-3 are consistent in size, shape, etc., corresponding to the first mounting hole 7 of the mounting plate 5-3, which facilitates the selection of different damping shafts 6 to drive the bolt fastening device 2 to fix bolts in different positions and working environments, without the need to set different holes for connection according to different damping shafts 6.

[0129] The second connecting piece 6 - 2 - 2 , the connecting plate 5 and the bolt fastening device 2 are all provided with corresponding second mounting holes 8 . Similarly, the second connecting point and the connecting plate 5 are connected through the second mounting holes 8 and the bolt fastening device 2 .

[0130] The second mounting hole 8 of the second connecting piece 6-2-2 and the second mounting hole 8 of the connecting plate 5 are consistent in size, shape, etc., corresponding to the first mounting hole 7 of the bolt fastening device 2, and have the same function as the first hole. They are all for the convenience of selecting different damping shafts 6 to drive the bolt fastening devices 2 to fix bolts in different positions and working environments, without setting different holes for connection according to different damping shafts 6.

[0131] Butterfly bolts 9 are provided in the first connecting hole and the second connecting hole, so that the damping shaft 6 and the connecting plate 5 are fixed by the butterfly bolts 9. Since the head of the butterfly bolts 9 is designed in the shape of a butterfly wing, it can be quickly tightened or loosened manually without tools such as wrenches. The operation is convenient and efficient, and is very suitable for the scenario where the damping shaft 6 and the bolt fastening device 2 need to be frequently replaced according to the working environment during the use of the device of the present invention; the butterfly head provides sufficient holding force, which can meet the fastening requirements of light connections and avoid safety hazards caused by slipping of bolt tibial devices, etc.

[0132] As another embodiment of the present invention,

[0133] The fixing rod 3-7 is fixed in the fixing groove 5-2, which stabilizes the threaded connection between the threaded tube 5-1 and the connecting tube 3-1. The fixing groove 5-2 includes a first fixing groove 5-2-1 and a second fixing groove 5-2-2, which are arranged in a cross. The first fixing groove 5-2-1 and the second fixing groove 5-2-2 are arranged in a cross, which can form a bidirectional constraint on the fixing rod 3-7 from two perpendicular directions. Compared with the fixing groove 5-2 that only operates in a single direction, this can fully restrict the axial movement and radial deviation of the fixing rod 3-7, significantly improving the anti-loosening ability of the threaded connection between the threaded tube 5-1 and the connecting tube 3-1. In particular, it can effectively disperse stress under complex stress scenarios such as vibration and impact, avoiding connection failure caused by overload due to force in a single direction.

[0134] At the same time, the cross structure gives the fixing rod 3-7 more flexible assembly adaptability. It can be embedded in the first fixing groove 5-2-1 or the second fixing groove 5-2-2 according to the actual installation space or force direction, reducing the difficulty of assembly alignment, taking into account stability and ease of operation, and allowing the threaded connection to maintain high-strength fixation while having stronger scene adaptability.

[0135] As another embodiment of the present invention,

[0136] The bolt tightening device 2 includes a first wrench 2-1 and a second wrench 2-2. The two wrenches with different structures correspond to bolts in different positions and different working environments. According to the space limitations, installation angles, and layout of surrounding components of the bolt position, an appropriate wrench is selected for operation.

[0137] The first wrench 2-1 is a ratchet wrench, and the second wrench 2-2 is a socket wrench. The ratchet wrench, with its one-way ratchet structure, can achieve continuous tightening in environments with limited space and installation angles by swinging back and forth at a small angle, eliminating the need for full rotation of the space and effectively solving the problem of operation in cramped locations. The socket wrench, relying on the precise fit between the socket and the bolt head, can adapt to bolts with complex layouts of surrounding components, reducing the risk of slippage caused by interference from obstacles and ensuring tightening stability in multi-angle and multi-obstacle scenarios. Both can be selected as needed to fully cover the bolt operation requirements of different locations, space restrictions, and layout characteristics, improving tightening efficiency and adaptability.

[0138] As another embodiment of the present invention,

[0139] The operating rod 3-4 is composed of multiple insulating rods connected together. The overall length can be flexibly adjusted to meet the distance requirements of bolt tightening operations at high and remote locations. It can also adapt to operations in narrow spaces or low areas by adding or removing insulating rods, thus overcoming the limitations of the single-length operating rod 3-4.

[0140] For example, the insulating rod can be an existing commonly used one-meter insulating rod, and multiple insulating rods can be telescopic or threaded to accommodate bolts of different heights.

[0141] At the same time, the insulating rod material itself has excellent electrical insulation properties, which can effectively isolate current and ensure safe operation in live environments; and the segmented structure is easy to disassemble and store, reducing storage and carrying space. Combined with the aging resistance and corrosion resistance of the insulating material, it can still maintain stable performance in complex environments such as outdoor and humid environments, taking into account both safety and scene adaptability.

[0142] As another embodiment of the present invention,

[0143] The torque of the damping shaft 6 is 3N.m. It can provide sufficient damping to prevent self-shaking, and make the operation effortless and smooth, ensuring a smooth rotation process without jamming.

[0144] A method for using a universal bolt fastening device for ground potential live working, specifically comprising the following steps:

[0145] The first step is to pull down the fixed tube 3-2 to compress the return spring 3-5 to the energy storage state.

[0146] The second step is to connect the connecting pipe 3-1 and the threaded pipe 5-1. After the connection is completed, loosen the fixing pipe 3-2, and the reset spring 3-5 releases energy to drive the fixing rod 3-7 to snap into the fixing groove 5-2.

[0147] In the third step, according to the actual situation on site, the first wrench 2-1 or the second wrench 2-2 is selected for fixing according to the different positions of the bolts to be tightened and the working space in which they are located.

[0148] When the working space is narrow, select the first wrench 2-1 for fixation, and when the working space is sufficient, select the second wrench 2-2 for fixation; at the same time, when the working point is at the top of the operating rod 3-4, select the first rotating shaft for connection, and when the working point is at the side of the operating rod 3-4, select the second rotating shaft for fixation. For example, the following combination:

[0149] 1. When the working point is at the top of a narrow space, select the combination of the first wrench 2-1 and the first rotating shaft;

[0150] 2. When the working point is at the side of a narrow space, choose the combination of the first wrench 2-1 and the second shaft;

[0151] 3. When the working point is at the top of a spacious space, choose the combination of the second wrench 2-2 and the first shaft;

[0152] 4. When the working point is at the side of a spacious space, choose the combination of the second wrench 2-2 and the second rotating shaft.

[0153] In addition to the above-mentioned combination methods, a suitable combination method can also be selected according to the site. For example, although the working point is on the side, the position is low enough. When the worker lifts the operating lever 3-4, the end of the operating lever 3-4 can be directly aligned with the bolt. In this case, the first rotating shaft can be combined with the bolt fastening device 2 for bolt fixing.

[0154] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the scope of the present invention.

[0155] Many other changes and modifications can be made without departing from the spirit and scope of the present invention. It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A universal bolt fastening device for ground potential live working, It is characterized by: The tool box (1) comprises a box body (1-1) and a box cover (1-2), wherein a bolt fastening device (2), a connecting head (3) and an operating rod (3-4) are provided in the box body (1-1). The operating rod (3-4) is connected to the connecting head (3), the connecting head (3) is threadedly connected to a connecting plate (5), the connecting plate (5) is connected to a damping shaft (6), and the operating rod (3-4) is connected to the bolt fastening device (2) via the connecting head (3), the connecting plate (5) and the damping shaft (6). The connector (3) comprises a connecting tube (3-1) and a fixed tube (3-2), the fixed tube (3-2) being sleeved on the outside of the connecting tube (3-1), a first limiting plate (3-3) being provided on the side of the fixed tube (3-2), a second limiting plate (3-4) being provided on the side of the connecting tube (3-1), a return spring (3-5) being provided between the first limiting plate (3-3) and the second limiting plate (3-4), The return spring (3-5) has an energy storage state when the first limit plate (3-3) drives it to be compressed, and a release state when the first limit plate (3-3) is pushed in the reverse direction. A first prefabricated groove (3-6) is provided on the side of the fixing pipe (3-2), a fixing rod (3-7) is provided in the first prefabricated groove (3-6), a second prefabricated groove corresponding to the fixing rod (3-7) is provided in the connecting pipe (3-1), and the fixing rod (3-7) is fixed in the first prefabricated groove (3-6) and the second prefabricated groove and moves up and down. The connecting plate (5) comprises a threaded tube (5-1) and a mounting plate (5-3); the threaded tube (5-1) and the connecting tube (3-1) are threadedly connected; and a fixing groove (5-2) corresponding to the fixing rod (3-7) is provided at the end of the threaded tube (5-1).

2. A universal bolt fastening device for ground potential live working according to claim 1, It is characterized by: The damping rotating shaft (6) comprises a first damping rotating shaft (6-1), The bolt fastening device (2) is connected to the connecting head (3) via the first damping shaft (6-1). The first damping rotating shaft (6-1) comprises a male shaft (6-1-1), an adjusting member (6-1-2), a female shaft (6-1-3) and a fixing plate (6-1-4); the adjusting member (6-1-2) connects the male shaft (6-1-1) and the female shaft (6-1-3); the torque of the first damping rotating shaft (6-1) is adjusted by the adjusting member (6-1-2); and the fixing plate (6-1-4) is fixed to the end of the male shaft (6-1-1). The bolt comprises an adjusting block (6-1-5) and a threaded rod (6-1-6), the threaded rod (6-1-6) connects the male shaft (6-1-1) and the female shaft (6-1-3), and the female shaft (6-1-3) is provided with an adjusting groove (6-1-7) for placing the adjusting block (6-1-5). The bolt fastening device (2) is fixed to the side of the fixing plate (6-1-4), and the mother shaft (6-1-3) is fixed to the side of the mounting plate (5-3).

3. A universal bolt fastening device for ground potential live working according to claim 2, It is characterized by: The first damping shaft (6-1) has a T-shaped appearance. The male shaft (6-1-1), the adjusting member (6-1-2) and the female shaft (6-1-3) are arranged on the same straight line, and the fixing plate (6-1-4) and the male shaft (6-1-1) are arranged vertically.

4. A universal bolt fastening device for ground potential live working according to claim 3, It is characterized by: The damping rotating shaft (6) includes a second damping rotating shaft (6-2), The bolt fastening device (2) is connected to the connecting head (3) via the second damping shaft (6-2). The second damping shaft (6-2) comprises a first connecting plate (6-2-1) and a second connecting plate (6-2-2), the first connecting plate (6-2-1) and the second connecting plate (6-2-2) being connected via a hinge shaft, and friction plate groups are provided between the first connecting plate (6-2-1) and the end of the hinge shaft, between the first connecting plate (6-2-1) and the second connecting plate (6-2-2), and between the second connecting plate (6-2-2) and the end of the hinge shaft. The first connecting piece (6-2-1) is fixed to the side of the mounting plate (5-3), and the second connecting piece (6-2-2) is fixed to the side of the bolt fastening device (2).

5. A universal bolt fastening device for ground potential live working according to claim 4, It is characterized by: When the first connecting piece (6-2-1) is connected to the mounting plate (5-3) and the second connecting piece (6-2-2) is connected to the bolt fastening device (2), the angle between the first connecting piece (6-2-1) and the second connecting piece (6-2-2) is between 20° and 340°.

6. A universal bolt fastening device for ground potential live working according to claim 5, It is characterized by: The first connecting piece (6-2-1), the mother shaft (6-1-3) and the mounting plate (5-3) are all provided with corresponding first mounting holes (7); the second connecting piece (6-2-2), the connecting plate (5) and the bolt fastening device (2) are all provided with corresponding second mounting holes (8); and butterfly-shaped bolts (9) are both provided in the first connecting hole and the second connecting hole.

7. A universal bolt fastening device for ground potential live working according to claim 6, It is characterized by: The fixing groove (5-2) comprises a first fixing groove (5-2-1) and a second fixing groove (5-2-2), and the first fixing groove (5-2-1) and the second fixing groove (5-2-2) are arranged in a cross shape.

8. A universal bolt fastening device for ground potential live working according to claim 7, It is characterized by: The bolt tightening device (2) comprises a first wrench (2-1) and a second wrench (2-2), The first wrench (2-1) is a ratchet wrench, and the second wrench (2-2) is a socket wrench.

9. A universal bolt fastening device for ground potential live working according to claim 8, It is characterized by: The torsional force of the damping shaft (6) is 3 Nm.

10. A method for using a universal bolt fastening device for ground potential live working, characterized in that: The method of using a universal bolt fastening device for ground potential live working according to claim 9 comprises the following steps: The first step is to pull down the fixed tube (3-2) to compress the return spring (3-5) to the energy storage state. The second step is to connect the connecting pipe (3-1) and the threaded pipe (5-1). After the connection is completed, loosen the fixing pipe (3-2). The return spring (3-5) releases energy to drive the fixing rod (3-7) into the fixing groove (5-2). The third step is to select the first wrench (2-1) or the second wrench (2-2) for fastening according to the actual situation on site and the different positions of the bolts to be fastened and the working space in which they are located.

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