CN206273516U - Livewire work rocking arm spanner - Google Patents

Abstract

The utility model relates to the technical field of bolt-type suspension wire clamping electric maintenance tools, which is a rocker wrench for live work, which includes a double-headed ratchet wrench, a driving rod device, a first insulating operating rod, a sleeve device, and a sleeve backstop device And the second insulated operating rod, the left and right sides of the double-headed ratchet wrench respectively have square holes for installing the socket with the ratchet device, and the upper right end of the drive rod device has a square head of the drive rod and is fixedly installed on the sleeve on the left part of the double-headed ratchet wrench In the installation square hole, the first insulating operating rod is fixedly installed on the left part of the driving rod device, and the middle part of the sleeve device is provided with a sleeve limit plane. The utility model has a reasonable and compact structure and is easy to use. The sleeve device can prevent the reverse rotation of the sleeve device through the sleeve backstop device, drive the double-headed ratchet wrench to rotate through the drive rod device, and install the fastening nut by using the connecting rod principle to ensure a safe distance. The bolt-type suspension wire entrainment is successfully realized, and it has the characteristics of safety, labor saving, simplicity and high efficiency.

Description

Live working rocker arm wrench

technical field

The utility model relates to the technical field of bolt-type suspension wire clamping electric overhaul tools, which is a rocker arm wrench for live work.

Background technique

At present, there are usually two types of suspension clamps used in overhead transmission lines, especially 110kV-220kV transmission lines. One is pre-twisted suspension clamps with a usage rate of 30%, and the other is bolted suspension clamps. The utilization rate is 70%. Since the bolt-type suspension clamp is connected with the U-shaped screw, it will rotate with the socket wrench when the nut is not locked, and cannot be tightened. It must be locked by a tool to prevent the socket from rotating. The combined gap between the human body and the grounding part of the pole tower, cross arm, and guy wire cannot meet the requirement of 2.5 meters. Currently, the commonly used live working method cannot carry out the suspension wire entrainment liveline elimination on the upper font tower and the upper font single pole with square guy wires. The work must be carried out under the condition of line power failure. Therefore, the reliability and availability of the transmission line are reduced, and the power outage time and power outage loss are increased.

During the daily maintenance and overhaul of the transmission line, it was found that when the nuts of the U-shaped bolts of the 110 kV upward-shaped tower with square pull wires fell off, due to the limitation of the tower structure, live compensation could not be carried out. Install the nut of the U-shaped bolt of the suspension wire clamp, forcing the line maintenance to be carried out in a power outage. The 110 kV and 220 kV transmission lines and substations have a small safety distance, so it is impossible to carry out equipotential work normally. The 110 kV upper-shaped tower and the upper-shaped single-rod suspension clamp U-shaped bolt nuts with square pull wires fall off and live work cannot be performed.

Contents of the invention

The utility model provides a rocker wrench for live work, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of the difficulty in installing and fastening the nuts in the existing bolt-type suspension wire clamps installed on the upper font tower, which cannot be realized. Live work must be carried out with a power outage, and it cannot be repaired in time, and there are potential safety hazards.

The technical scheme of the utility model is achieved through the following measures: a rocker wrench for live work, including a double-headed ratchet wrench, a drive rod device, a first insulating operating rod, a sleeve device, a sleeve backstop device and a second Insulated operating rod, the left and right sides of the double-headed ratchet wrench have socket installation square holes with ratchet devices respectively, the upper right end of the drive rod device has a drive rod square head and is fixedly installed in the socket installation square hole on the left part of the double-head ratchet wrench Inside, the first insulating operating rod is fixedly installed on the left part of the driving rod device, the lower end of the sleeve device has a sleeve square head and is fixedly installed in the sleeve installation square hole on the right part of the double-headed ratchet wrench, and the middle part of the sleeve device is set There is a sleeve limit plane, and the upper end of the sleeve device is provided with a fastening cavity that can be set on the hex nut of the bolt-type suspension clamp. The sleeve backstop device has an elastic locking piece, and the sleeve backstop device passes through The elastic locking piece is installed and clamped on the sleeve limit plane and can prevent the sleeve device from accidentally rotating, and the left part of the sleeve backstop device is fixedly equipped with a second insulating operating rod.

Below is the further optimization or/and improvement to above-mentioned utility model technical scheme:

The ratchet devices on the left and right sides of the above-mentioned double-headed ratchet wrench can be respectively provided with direction-changing lock blocks capable of setting the unidirectional rotation direction of the ratchet device.

The right end of the above-mentioned first insulated operating rod can be fixedly connected with the first rod toothed plate through the fixed sleeve, the lower end surface of the first rod toothed plate is provided with locking teeth, and the center of the first rod toothed plate has a bolt hole and is installed with The first rod locking bolt, the driving rod device may include a driving rod toothed plate, a driving cross bar and a driving rod seat, the driving rod toothed plate is provided with a U-shaped groove, and the upper end of the driving rod toothed plate has a One end of the drive rod tooth plate is fixed through the drive cross bar or integrally connected with the drive rod seat, the square head of the drive rod is located at the upper end of the drive rod seat, and the drive rod tooth plate is set on the first rod locking bolt through the U-shaped groove. On the top, the locking teeth are engaged with the locking teeth of the driving disc, and the driving rod toothed plate is fixedly connected with the first rod toothed plate through the first rod locking bolt.

The above-mentioned sleeve device may include a nut sleeve and a sleeve seat post, the lower end of the nut sleeve is fixed or integrally connected with the sleeve seat post, the sleeve square head is located at the lower end of the sleeve seat post, and the sleeve limit plane is relatively parallel Two flats and located in the middle of the sleeve seat post.

The right end of the above-mentioned second insulating operating rod can be fixedly connected with the second rod toothed plate through the fixed sleeve, the upper end surface of the second rod toothed plate is provided with locking teeth, and the center of the second rod toothed plate has a bolt hole and is installed with The second lever locks the bolt, and the sleeve backstop device may include a backstop toothed plate, a backstop seat post, a limit plate and a backstop spring. The backstop toothed plate is provided with a U-shaped groove, and the backstop toothed plate The lower end of the backstop is provided with backstop teeth that can be engaged with the locking teeth. The right end of the backstop tooth plate is fixed or integrally connected with a backstop seat post. The right end of the backstop seat post is fixed with a limit plate through the seat post bolt. , the middle part of the limit plate is provided with a U-shaped limit slot with an opening facing right, and the front and rear lock bolts are respectively fixed on the limit plates on the front and rear sides of the corresponding U-shaped limit notch, and the upper end of the limit plate is installed There is a non-return circlip, the right part of the anti-return circlip has a front swing arm and a rear swing arm and is in the shape of a zigzag, the left part of the anti-return circlip is in the shape of a ring and is fixed on the seatpost bolt, the front swing arm and the backswing A U-shaped bayonet with a width smaller than the width of the U-shaped limiting groove is formed between the arms. The front swing arm of the anti-return circlip is fixed on the front locking bolt, and the rear swing arm of the anti-return circlip is fixed on the rear locking bolt. The toothed plate of the backstop is set on the locking bolt of the second rod through the U-shaped groove, and the locking teeth are engaged with the teeth of the backstop plate. The reverse circlip is installed and clamped on the sleeve limit plane of the sleeve device through the U-shaped bayonet.

The above fastening cavity may be a hexagonal prism cavity, a twelve prism cavity or an eighteen prism cavity.

The above-mentioned first insulating operating rod and the second insulating operating rod may be adjustable insulating rods whose length can be adjusted.

The left ends of the first insulating operating rod and the second insulating operating rod may be provided with screw joints and fixedly installed with insulating extension rods.

The utility model has a reasonable and compact structure and is easy to use. The sleeve device can prevent the reverse rotation of the sleeve device through the sleeve backstop device, drive the double-headed ratchet wrench to rotate through the drive rod device, and install the fastening nut by using the connecting rod principle to ensure a safe distance. The bolt-type suspension wire entrainment is successfully realized, and it has the characteristics of safety, labor saving, simplicity and high efficiency.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the front view of the preferred embodiment of the utility model.

Accompanying drawing 2 is the front view enlarged structural schematic diagram of double-headed ratchet wrench in accompanying drawing 1.

Accompanying drawing 3 is the top view structural diagram of accompanying drawing 2.

Accompanying drawing 4 is a top view enlarged structural schematic diagram of the sleeve backstop device in accompanying drawing 1 .

Accompanying drawing 5 is the bottom view structure diagram of accompanying drawing 4.

The codes in the drawings are: 1 is the double-headed ratchet wrench, 2 is the first insulating operating rod, 3 is the second insulating operating rod, 4 is the square hole for installing the sleeve, 5 is the square head of the driving rod, and 6 is the sleeve Square head, 7 is the sleeve limit plane, 8 is the bolt type suspension clamp, 9 is the hex nut, 10 is the fastening cavity, 11 is the direction changing lock block, 12 is the first rod chainring, 13 is the first Rod locking bolt, 14 is the driving rod tooth plate, 15 is the driving cross bar, 16 is the driving rod seat, 17 is the driving plate clamping tooth, 18 is the nut sleeve, 19 is the sleeve seat rod, 20 is the second rod tooth plate , 21 is the second rod locking bolt, 22 is the backstop tooth plate, 23 is the backstop seat post, 24 is the limit plate, 25 is the reverse clamp spring, 26 is the backstop plate clamping tooth, 27 is the seat post bolt, 28 is the front locking bolt, and 29 is the rear locking bolt.

detailed description

The utility model is not limited by the following examples, and the specific implementation manner can be determined according to the technical scheme of the utility model and actual conditions.

In this utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout method of Fig. The relationship is determined according to the layout direction of the drawings in the specification.

Below in conjunction with embodiment and accompanying drawing, the utility model is further described:

As shown in Figures 1, 2, and 3, the live working rocker wrench includes a double-headed ratchet wrench 1, a drive rod device, a first insulating operating rod 2, a sleeve device, a sleeve backstop device and a second insulating operating rod 3. The left and right sides of the double-headed ratchet wrench 1 have socket installation square holes 4 with ratchet devices, and the upper right end of the drive rod device has a drive rod square head 5 and is fixedly installed on the sleeve installation on the left part of the double-head ratchet wrench 1. In the square hole 4, the first insulating operating rod 2 is fixedly installed on the left part of the drive rod device, and the sleeve square head 6 is fixedly installed at the lower end of the sleeve device in the sleeve installation square hole 4 on the right part of the double-headed ratchet wrench 1 , the middle part of the sleeve device is provided with a sleeve limit plane 7, and the upper end of the sleeve device is provided with a fastening cavity 10 that can be set on the hex nut 9 of the bolt-type suspension clamp 8, and the sleeve backstop device is equipped with There is an elastic locking piece, the sleeve backstop device is fixed on the sleeve limit plane 7 through the elastic locking piece and can prevent the sleeve device from accidentally rotating, and the left part of the sleeve backstop device is fixedly installed with a second insulating operating rod 3 . Connect the sleeve backstop device through the second insulating operating rod 3 to prevent the reverse rotation of the sleeve device, connect the driving rod device through the first insulating operating rod 2 to drive the double-headed ratchet wrench 1 to rotate, and use the principle of connecting rod to install the fastening nut, which can ensure Safe distance, smooth implementation of bolt-type suspension line entrainment and electric defect elimination, with the characteristics of safety, labor saving, simplicity and high efficiency. In actual use, two operators use the first insulating operating rod 2 and the second insulating operating rod 3 respectively to install and fasten the nuts of the bolt-type suspension clamp by means of live work, and no power-off work is required for line maintenance , the operation time is short, time-saving and labor-saving, and the work efficiency is high. It has a significant effect on improving the safety level and work efficiency of line live work, and reducing the labor intensity of operators. It has high practical value and promotion significance. Through the utility model, the operator can enter the strong electric field to work. According to the actual test, the operation can be completed in about 15 minutes on average by dismantling or fastening the nuts in the strong electric field, and the line can be eliminated without power failure, which is effective. Improve the reliability and availability of power grid equipment, avoid power outage losses, save labor costs, greatly improve operating efficiency, reduce operating risks for operators, and reduce power outage losses for enterprises and users. It is suitable for live fastening and disassembly of suspension clamp bolts of 110 kV and 220 kV transmission lines, fastening and disassembly of tension clamps, and also suitable for gantry tension lines in 110 kV and 220 kV substations Live fastening and disassembly of clamp bolts, live fastening and disassembly of clamp bolts of isolating switches and circuit breaker equipment.

According to actual needs, the above live working rocker wrench can be further optimized or/and improved:

As shown in accompanying drawings 1, 2, and 3, the ratchet devices on the left and right sides of the double-headed ratchet wrench 1 are respectively provided with a direction-changing lock block 11 capable of setting the unidirectional rotation of the ratchet device.

As shown in Figures 1, 2, and 3, the right end of the first insulating operating rod 2 is fixedly connected to the first rod toothed plate 12 through a fixed sleeve, and the lower end surface of the first rod toothed plate 12 is provided with locking teeth. There is a bolt hole in the center of a rod toothed plate 12 and a first rod locking bolt 13 is installed. The drive rod device includes a drive rod toothed plate 14, a drive cross bar 15 and a drive rod seat 16. The drive rod toothed plate 14 is provided with a U-shaped slot, the upper end of the driving rod toothed disc 14 is provided with a driving disc locking tooth 17 that can be engaged with the locking teeth, and one end of the driving rod toothed disc 14 is fixed or integrally connected with a driving rod seat 16 through a driving cross bar 15, and the driving rod side The head 5 is located at the upper end of the drive rod seat 16, the drive rod toothed disc 14 is set on the first rod locking bolt 13 through a U-shaped groove, the locking teeth are engaged with the driving disc teeth 17, and the driving rod toothed disc 14 is locked by the first rod The bolt 13 is fixedly connected with the first rod toothed disc 12 .

As shown in accompanying drawings 1 and 2, the sleeve device includes a nut sleeve 18 and a sleeve seat post 19, the lower end of the nut sleeve 18 is fixed or integrally connected with the sleeve seat post 19, and the sleeve square head 6 is located on the sleeve seat At the lower end of the rod 19 , the sleeve limit plane 7 is two relatively parallel planes and is located in the middle of the sleeve seat post 19 . The sleeve device is installed on one end of the double-headed ratchet wrench 1 through the sleeve square head 6. After the sleeve backstop device is fixed and installed on the second insulating operating rod 3, the backstop spring 25 of the sleeve backstop device To limit the sleeve device and prevent its reverse rotation, the other end of the double-headed ratchet wrench 1 is driven by the operating rod connection device to make the double-headed ratchet wrench 1 rotate around the axis of the sleeve device to realize the locking of the nut and eliminate the gap.

As shown in Figures 1, 4, and 5, the right end of the second insulating operating rod 3 is fixedly connected to the second rod toothed disc 20 through a fixed sleeve, and the upper end surface of the second rod toothed disc 20 is provided with locking teeth. The center of the two-rod chainring 20 has a bolt hole and a second-rod locking bolt 21 is installed. The sleeve backstop device includes a backstop toothed plate 22, a backstop seat post 23, a limit plate 24 and a backstop spring 25. The backstop toothed plate 22 is provided with a U-shaped groove, and the lower end of the backstop toothed plate 22 is provided with a backstop plate tooth 26 that can be engaged with the locking teeth, and the right end of the backstop toothed plate 22 is fixed or integrally connected. There is a backstop seat post 23, and the right end of the backstop seat post 23 is fixedly installed with a limit plate 24 by a seat post bolt 27. The middle part of the limit plate 24 is provided with a U-shaped limit slot opening to the right, corresponding to the U-shaped limit notch Front locking bolts 28 and rear locking bolts 29 are respectively fixedly installed on the limiting plates 24 on the front and rear sides of the front and back. The rear swing arm is in the shape of a zigzag, the left part of the anti-return circlip 25 is in the shape of a circle and is fixed on the seatpost bolt 27, and a U-shaped clip with a width smaller than the width of the U-shaped limit groove is formed between the front swing arm and the rear swing arm. The front arm of the anti-return spring 25 is fixed on the front locking bolt 28, the rear arm of the anti-return spring 25 is fixed on the rear locking bolt 29, and the backstop gear plate 22 is set on the second through the U-shaped groove. On the lever locking bolt 21, the locking teeth are engaged with the backstop teeth 26, the backstop toothed plate 22 is fixedly connected with the second lever toothed plate 20 through the second lever locking bolt 21, and the anti-return spring 25 passes through the U The shape bayonet mount is stuck on the sleeve limit plane 7 of the sleeve device. The limit plate 24 is used for fixing the non-return clip spring 25, and can also limit the position of the electrified body and the grounding part in the process of live work, so as to ensure the safety of the person and the power grid; Next, prevent the sleeve device from occurring on the double-ended ratchet wrench 1 and only rotate with the ratchet device without working.

As shown in Figures 1 and 2, the fastening cavity 10 is a hexagonal prism cavity, a twelve prism cavity or an eighteen prism cavity. In actual use, the specific shape of the fastening cavity 10 can be designed according to the arrangement sequence and position shape of the nuts, flat washers, and spring pads in the fastening cavity 10 .

According to actual needs, the first insulating operating rod 2 and the second insulating operating rod 3 are adjustable insulating rods whose length can be adjusted.

According to actual needs, the left ends of the first insulating operating rod 2 and the second insulating operating rod 3 are provided with screw joints and are fixedly installed with insulating extension rods.

The above technical features constitute the best embodiment of the utility model, which has strong adaptability and best implementation effect, and non-essential technical features can be increased or decreased according to actual needs to meet the needs of different situations.

Claims (10)

1. A live working rocker wrench, characterized in that it comprises a double-headed ratchet wrench, a drive rod device, a first insulating operating rod, a sleeve device, a sleeve backstop device and a second insulating operating rod, and the double-headed ratchet wrench There are socket installation square holes with ratchet devices on the left and right sides respectively, the upper right end of the drive rod device has a drive rod square head and is fixedly installed in the socket installation square hole on the left part of the double-headed ratchet wrench, and the left part of the drive rod device is fixedly installed There is a first insulating operating rod, the lower end of the sleeve device has a sleeve square head and is fixedly installed in the sleeve installation square hole on the right part of the double-headed ratchet wrench, the middle part of the sleeve device is provided with a sleeve limit plane, and the sleeve The upper end of the device is provided with a fastening cavity that can be fitted on the hex nut of the bolt-type suspension clamp. The sleeve backstop device has an elastic lock, and the sleeve backstop device is fixed on the sleeve limit through the elastic lock. On the bit plane and can prevent accidental rotation of the sleeve device, the left part of the sleeve backstop device is fixedly installed with a second insulating operating rod. 2. The live working rocker wrench according to claim 1, characterized in that the ratchet devices on the left and right sides of the double-headed ratchet wrench are respectively provided with direction-changing lock blocks capable of setting the unidirectional rotation direction of the ratchet device. 3. The live working rocker wrench according to claim 1 or 2, characterized in that the right end of the first insulating operating rod is fixedly connected to the first rod toothed plate through a fixed sleeve, and the lower end surface of the first rod toothed plate is provided with There are locking teeth. There is a bolt hole in the center of the first rod toothed plate and the first rod locking bolt is installed. The drive rod device includes a drive rod toothed plate, a drive cross bar and a drive rod seat. The drive rod toothed plate is provided with a U-shaped slot, the upper end of the driving rod toothed plate is provided with a driving plate tooth that can mesh with the locking teeth, one end of the driving rod toothed plate is fixed or integrally connected with the driving rod seat through the driving cross bar, and the square head of the driving rod is located on the driving rod seat At the upper end, the drive rod toothed plate is set on the first rod locking bolt through the U-shaped groove, the locking teeth are engaged with the driving plate teeth, and the driving rod toothed plate is fixedly connected with the first rod toothed plate through the first rod locking bolt. 4. The live working rocker arm wrench according to claim 1 or 2, characterized in that the sleeve device includes a nut sleeve and a sleeve seat post, the lower end of the nut sleeve is fixed or integrally connected with the sleeve seat post, the sleeve The square head is located at the lower end of the sleeve seat post, and the sleeve limit planes are two relatively parallel planes located in the middle of the sleeve seat post. 5. The live working rocker arm wrench according to claim 3, characterized in that the sleeve device includes a nut sleeve and a sleeve seat post, the lower end of the nut sleeve is fixed or integrally connected with the sleeve seat post, and the sleeve square head Located at the lower end of the sleeve seat post, the sleeve limit planes are two relatively parallel planes and located in the middle of the sleeve seat post. 6. The live working rocker wrench according to claim 1 or 2, characterized in that the right end of the second insulating operating rod is fixedly connected to the second rod toothed plate through a fixed sleeve, and the upper end surface of the second rod toothed plate is provided with There are locking teeth. There is a bolt hole in the center of the second lever chainring and the second lever locking bolt is installed. The sleeve backstop device includes a backstop tooth plate, a backstop seat post, a limit plate and a backstop spring. There is a U-shaped groove on the toothed plate of the backstop, the lower end of the toothed plate of the backstop is provided with the teeth of the backstop plate which can be engaged with the locking teeth, and the right end of the toothed plate of the backstop is fixed or integrally connected with a backstop seat Rod, the right end of the backstop seat post is fixed with a limit plate by the seat post bolt, and the middle part of the limit plate is provided with a U-shaped limit slot opening to the right, corresponding to the limit plates on the front and rear sides of the U-shaped limit notch. The front locking bolt and the rear locking bolt are fixedly installed, and the upper end of the limit plate is installed with a non-return clip spring. It is ring-shaped and fixed on the seat post bolt. A U-shaped bayonet with a width smaller than the width of the U-shaped limit groove is formed between the front swing arm and the rear swing arm. The front swing arm of the anti-return spring is fixed on the front locking bolt. The rear swing arm of the anti-return circlip is fixed on the rear locking bolt, and the backstop toothed plate is set on the second rod locking bolt through a U-shaped groove. The locking bolt of the second rod is fixedly connected with the toothed disc of the second rod, and the anti-return spring is fixed on the sleeve limit plane of the sleeve device through the U-shaped bayonet. 7. The live working rocker wrench according to claim 3, characterized in that the right end of the second insulating operating rod is fixedly connected to the second rod toothed plate through a fixed sleeve, and the upper end surface of the second rod toothed plate is provided with a locking There is a bolt hole in the center of the second lever chainring and the second lever locking bolt is installed. The sleeve backstop device includes a backstop tooth plate, a backstop seat post, a limit plate and a backstop spring. There is a U-shaped groove on the gear plate of the backstop, the lower end of the tooth plate of the backstop is provided with teeth of the backstop plate which can be engaged with the locking teeth, and the right end of the tooth plate of the backstop is fixed or integrally connected with a backstop seat post, The right end of the backstop seat post is fixed with a limit plate by the seat post bolt, and the middle part of the limit plate is provided with a U-shaped limit slot opening to the right, and the limit plates on the front and rear sides of the corresponding U-shaped limit notch are respectively fixed and installed. There are front locking bolts and rear locking bolts, and the upper end of the limit plate is equipped with a non-return spring. Shaped and fixed on the seat post bolt, a U-shaped bayonet with a width smaller than the width of the U-shaped limit groove is formed between the front swing arm and the rear swing arm, and the front swing arm of the anti-return spring is fixed on the front locking bolt. The rear swing arm of the circlip is fixed on the rear locking bolt, the backstop toothed plate is set on the second lever locking bolt through the U-shaped groove, the locking teeth are engaged with the backstop plate teeth, and the backstop toothed plate passes through the second lever. The two-rod locking bolt is fixedly connected with the second rod toothed disc, and the anti-return clip spring is installed and clamped on the sleeve limit plane of the sleeve device through the U-shaped bayonet. 8. The live working rocker wrench according to claim 4, characterized in that the right end of the second insulating operating rod is fixedly connected to the second rod toothed plate through a fixed sleeve, and the upper end surface of the second rod toothed plate is provided with a locking There is a bolt hole in the center of the second lever chainring and the second lever locking bolt is installed. The sleeve backstop device includes a backstop tooth plate, a backstop seat post, a limit plate and a backstop spring. There is a U-shaped groove on the gear plate of the backstop, the lower end of the tooth plate of the backstop is provided with teeth of the backstop plate which can be engaged with the locking teeth, and the right end of the tooth plate of the backstop is fixed or integrally connected with a backstop seat post, The right end of the backstop seat post is fixed with a limit plate by the seat post bolt, and the middle part of the limit plate is provided with a U-shaped limit slot opening to the right, and the limit plates on the front and rear sides of the corresponding U-shaped limit notch are respectively fixed and installed. There are front locking bolts and rear locking bolts, and the upper end of the limit plate is equipped with a non-return spring. Shaped and fixed on the seat post bolt, a U-shaped bayonet with a width smaller than the width of the U-shaped limit groove is formed between the front swing arm and the rear swing arm, and the front swing arm of the anti-return spring is fixed on the front locking bolt. The rear swing arm of the circlip is fixed on the rear locking bolt, the backstop toothed plate is set on the second lever locking bolt through the U-shaped groove, the locking teeth are engaged with the backstop plate teeth, and the backstop toothed plate passes through the second lever. The two-rod locking bolt is fixedly connected with the second rod toothed disc, and the anti-return clip spring is installed and clamped on the sleeve limit plane of the sleeve device through the U-shaped bayonet. 9. The live working rocker wrench according to claim 5, characterized in that the right end of the second insulating operating rod is fixedly connected to the second rod toothed plate through a fixed sleeve, and the upper end surface of the second rod toothed plate is provided with a locking There is a bolt hole in the center of the second lever chainring and the second lever locking bolt is installed. The sleeve backstop device includes a backstop tooth plate, a backstop seat post, a limit plate and a backstop spring. There is a U-shaped groove on the gear plate of the backstop, the lower end of the tooth plate of the backstop is provided with teeth of the backstop plate which can be engaged with the locking teeth, and the right end of the tooth plate of the backstop is fixed or integrally connected with a backstop seat post, The right end of the backstop seat post is fixed with a limit plate by the seat post bolt, and the middle part of the limit plate is provided with a U-shaped limit slot opening to the right, and the limit plates on the front and rear sides of the corresponding U-shaped limit notch are respectively fixed and installed. There are front locking bolts and rear locking bolts, and the upper end of the limit plate is equipped with a non-return spring. Shaped and fixed on the seat post bolt, a U-shaped bayonet with a width smaller than the width of the U-shaped limit groove is formed between the front swing arm and the rear swing arm, and the front swing arm of the anti-return spring is fixed on the front locking bolt. The rear swing arm of the circlip is fixed on the rear locking bolt, the backstop toothed plate is set on the second lever locking bolt through the U-shaped groove, the locking teeth are engaged with the backstop plate teeth, and the backstop toothed plate passes through the second lever. The two-rod locking bolt is fixedly connected with the second rod toothed disc, and the anti-return clip spring is installed and clamped on the sleeve limit plane of the sleeve device through the U-shaped bayonet. 10. The live working rocker wrench according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, characterized in that the fastening cavity is a hexagonal prism cavity or a twelve prism cavity cavity or eighteen prism cavity; or/and, the first insulating operating rod, the second insulating operating rod are adjustable insulating rods that can adjust the length; or/and, the first insulating operating rod, the second insulating operating rod The left end is provided with a screw interface and is fixedly installed with an insulating extension rod.