Ground potential electric universal wire breaking pliers

Abstract

The utility model is a kind of ground potential electric omnipotent drainage wire insulation wire breaking pliers, including insulating rod, electric base, transmission mechanism and main body tool rest;Electric base is installed at the bottom of insulating rod, its inside is equipped with brushless motor, large capacity battery and circuit board;Main body tool rest is installed at the top of insulating rod, including hydraulic base, insulating rod connecting seat and tool rest main body;Hydraulic base inside is equipped with hydraulic mechanism;The upper end of tool rest main body is formed with sickle-shaped upper jaw, and its bottom is equipped with lower jaw lifting blade with the transmission connection of hydraulic mechanism;Insulating rod connecting seat is located at one side of hydraulic base, its inside is equipped with eccentric wheel mechanism capable of controlling hydraulic mechanism;Transmission mechanism is installed in the inside of insulating rod.The utility model integrates motor, transmission mechanism, cam mechanism, hydraulic mechanism, and is small and light, and can cut off insulating wire at any angle, avoid the danger caused by larger action of operator, and realize man-machine efficiency by power supply.

Description

TECHNICAL FIELD

[0001] The present application relates to a broken wire pliers, in particular to a ground potential electric universal drain wire insulation broken wire pliers. BACKGROUND

[0002] In the work of breaking the branch line and the drain wire, the relevant operation needs to be matched with the insulation broken wire pliers. However, there are the following problems in the actual relevant operation process:

[0003] Because there are various angles between the upper cross arm and the lower cross arm in the actual live working line, there are also arbitrary angles between the branch line and the drain wire and the main line. The existing insulation broken wire pliers need to be completely opened during use, and the cutting edge has no locking function. Moreover, the activity range of the operating personnel on the tower is also limited, so the live working personnel must choose the appropriate angle to clamp the branch line and the drain wire into the opening of the insulation broken wire pliers. When the angle is not appropriate, the cutting edge of the insulation broken wire pliers may damage the main line or even cut off the main line, which leads to the failure to complete the live breaking of the branch line and the drain wire, and limits the development of the ground potential operation method for breaking the branch line and the drain wire.

[0004] In addition, the existing insulation broken wire pliers for live working are relatively bulky, and consume a lot of physical energy of the live working personnel. The electric power is not provided to realize the man-machine efficiency. At the same time, the existing insulation broken wire pliers for live working need large actions of the operating personnel, and have high risk coefficient. SUMMARY

[0005] In order to solve the above problems, the present application provides a light portable three-phase short-circuit grounding wire device.

[0006] The technical scheme adopted by the present application is:

[0007] The utility model provides a ground potential electric universal drainage wire insulation wire cutting pliers, which comprises an insulation rod, an electric base, a transmission mechanism and a main body holder, the electric base is installed at the bottom of the insulation rod, a brushless motor, a large-capacity battery and a circuit board are arranged in the electric base, the large-capacity battery supplies power to the brushless motor through the circuit board, a power button is arranged on the circuit board and passes through the electric base, the main body holder is installed at the top of the insulation rod and comprises a hydraulic base, an insulation rod connecting seat and a holder main body, the hydraulic base is internally provided with a hydraulic mechanism, the top of the hydraulic mechanism is connected with the holder main body in a sleeved mode, the upper end of the holder main body is formed in a sickle-shaped upper jaw, the bottom of the holder main body is provided with a lower jaw lifting blade which is inserted into the hydraulic base and is in transmission connection with the hydraulic mechanism, the insulation rod connecting seat is arranged on one side of the hydraulic base and is internally provided with an eccentric wheel mechanism capable of controlling the hydraulic mechanism, the transmission mechanism is installed in the insulation rod, one end of the transmission mechanism is in transmission connection with the brushless motor, and the other end of the transmission mechanism is in transmission connection with the eccentric wheel mechanism, the brushless motor of the electric base can drive the eccentric wheel mechanism to rotate through the transmission mechanism, the eccentric wheel mechanism can drive the hydraulic mechanism to increase pressure while rotating, and the lower jaw lifting blade moves to the sickle-shaped upper jaw to cut the drainage wire.

[0008] Further, the upper end of the holder main body is formed in a sickle-shaped upper jaw, the lower end of the holder main body is a rectangular connecting seat, and an open chamber is formed at the bottom of the rectangular connecting seat; the hydraulic base is in a cylindrical structure, open chambers and sealed chambers are respectively formed at the two ends of the hydraulic base, one end of the open chamber of the hydraulic base is connected with the rectangular connecting seat of the holder main body in a sleeved mode, so that the bottom of the rectangular connecting seat and the open chamber at one end of the interior of the hydraulic base form a sealed sliding chamber, and the sealed chamber at the other end of the hydraulic base is an oil bag, an oil inlet channel and an oil return channel are formed between the open chamber and the sealed chamber in the oil bag, and an oil inlet control assembly and an oil return control assembly are respectively arranged on the oil inlet channel and the oil return channel.

[0009] Further, the lower jaw lifting blade comprises a blade, a thrust rod, a compression spring and a spring mounting seat, one end of the thrust rod is fixedly connected with the blade, the other end of the thrust rod passes through the rectangular connecting seat and is fixedly connected with the spring mounting seat in the sliding chamber, and the rod body part of the thrust rod in the sliding chamber is sleeved with the compression spring.

[0010] Further, the oil inlet control assembly comprises a first ball valve, a first spring, a second ball valve, a second spring, an oil inlet switch and a third spring, the first ball valve and the first spring are arranged at one end of the oil inlet channel close to the oil bag, the second ball valve and the second spring are arranged at one end of the oil inlet channel close to the sliding chamber, a pump oil cavity is formed at the middle of the oil inlet channel, the oil inlet switch and the third spring are arranged in the pump oil cavity, the end of the oil inlet switch extends into the insulation rod connecting seat and can be in contact with the eccentric wheel mechanism in the insulation rod connecting seat.

[0011] Further, the oil return control assembly comprises an oil seal needle and an oil return switch; the oil return channel is in a Z shape as a whole, and the oil seal needle and the oil return switch are arranged on the bending section of the oil return channel; the oil return switch is composed of an upper valve body, a valve rod, a compression spring and a lower valve body, the bottom of the lower valve body is fixedly connected with the oil seal needle, the top of the lower valve body is slidably connected with the upper valve body through the valve rod and the compression spring, and one end of the valve rod penetrates through the upper valve body and is provided with a pulling rod; the upper valve body and the valve rod are partially exposed outside the hydraulic base.

[0012] Further, the bottom of the oil bag is provided with an oil injection valve.

[0013] Further, the eccentric mechanism comprises a bearing seat, an eccentric shaft and an eccentric wheel; the eccentric wheel is rotatably arranged on the bearing seat through the eccentric shaft, the bearing seat is embeddedly arranged at the top of the insulating rod connecting seat, and the eccentric shaft is in transmission connection with the transmission mechanism in the insulating rod; the transmission mechanism comprises a transmission main shaft, a connecting piece and a transmission pin; one end of the transmission main shaft is in transmission connection with the brushless motor through the connecting piece and the transmission pin, and the other end of the transmission main shaft is in transmission connection with the eccentric shaft through the connecting piece and the transmission pin.

[0014] Further, the insulating rod is composed of a plurality of insulating connecting rods; the top of each insulating connecting rod is provided with a connecting head, and the bottom of each insulating connecting rod is provided with a connecting seat; the insulating connecting rods are buckle-connected through the connecting heads and the connecting seats; each insulating connecting rod is provided with a transmission connecting shaft, the transmission connecting shafts are connected through the connecting pieces and the transmission pins, one end of the transmission connecting shaft in the first insulating connecting rod is in transmission connection with the eccentric shaft through the connecting piece and the transmission pin, and one end of the transmission connecting shaft in the last insulating connecting rod is in transmission connection with the brushless motor through the connecting piece and the transmission pin.

[0015] Further, the insulating rod connecting seat is further provided with a speed reducer, and the eccentric shaft is in transmission connection with the transmission mechanism in the insulating rod through the speed reducer.

[0016] Further, the upper scissor-shaped upper jaw is provided with a guide rail capable of lifting and guiding the lower scissor-shaped lower jaw.

[0017] The beneficial effects of the present application are as follows:

[0018] The ground potential electric universal drainage wire insulation cutter integrates a motor, a transmission mechanism, a cam mechanism and a hydraulic mechanism, is small and light, can cut off the insulation wire at any angle, avoids the danger caused by large actions of the operator, and realizes man-machine efficiency by providing power through electricity.

[0019] The brushless motor of the ground potential electric universal drainage wire insulation broken wire pliers can drive the eccentric wheel mechanism to rotate through the transmission mechanism, and the eccentric wheel mechanism can drive the hydraulic mechanism to boost at the same time, so that the lower jaw lifting blade moves to the direction of the sickle-shaped upper jaw, forming a lock to prevent the drainage wire from falling off the jaw.

[0020] The ground potential electric universal drainage wire insulation broken wire pliers can still realize cutting of large-diameter drainage wire under the premise of small size structure, because the lower jaw lifting blade moves to the direction of the sickle-shaped upper jaw to cut the drainage wire through the hydraulic mechanism.

[0021] The transmission mechanism, cam mechanism and hydraulic mechanism of the ground potential electric universal drainage wire insulation broken wire pliers are designed ingeniously, the transmission mechanism can be split and combined, the cam mechanism can continuously boost the hydraulic mechanism and performance, and the control operation of the hydraulic mechanism is simple.

[0022] The ground potential electric universal drainage wire insulation broken wire pliers can improve the safety level of operating personnel and the power grid operation level in the process of live working, reduce the power outage range, reduce the customer power outage time, improve the power supply reliability and enterprise image, realize the work of cutting off the branch line drainage wire in live processing, and avoid the loss of electric quantity. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 and Figure 2 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 3 It is a schematic diagram of the internal structure of the present application;

[0025] Figure 4 and Figure 5 It is a schematic diagram of the structure of the main knife holder of the present application;

[0026] Figure 6 It is a schematic diagram of the structure of the electric base of the present application;

[0027] Figure 7 It is a schematic diagram of the structure of the insulation rod of the present application;

[0028] Figure 1—In the diagram, 1—insulating rod, 2—electric base, 3—brushless motor, 4—high-capacity battery, 5—circuit board, 6—power button, 7—hydraulic base, 8—insulating rod connector, 9—tool holder body, 10—sickle-shaped upper jaw, 11—lower jaw lifting blade, 12—eccentric wheel mechanism, 13—rectangular connector, 14—sliding chamber, 15—oil bladder, 16—oil inlet channel, 17—oil return channel, 18—blade, 19—thrust rod, 20—compression spring, 21—spring mounting seat, 22—first ball valve, 23—first spring, 2 4—Second ball valve, 25—Second spring, 26—Oil inlet switch, 27—Third spring, 28—Pump oil chamber, 29—Oil seal pin, 30—Return oil switch, 31—Upper valve body, 32—Valve stem, 33—Compression spring, 34—Lower valve body, 35—Pull rod, 36—Oil injection valve, 37—Bearing seat, 38—Eccentric wheel shaft, 39—Eccentric wheel, 40—Transmission main shaft, 41—Connecting part, 42—Transmission pin, 43—Insulated connecting rod, 44—Connector, 45—Connecting seat, 46—Transmission connecting shaft, 47—Reducer, 48—Guide rail. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1 As shown in Figure 3, the present invention is a ground potential electric universal drain wire insulated wire cutter, which includes an insulating rod 1, an electric base 2, a transmission mechanism and a main blade holder.

[0031] Specifically, the electric base 2 is installed at the bottom of the insulating rod 1, as shown below. Figure 7 As shown, the electric base 2 contains a brushless motor 3, a high-capacity battery 4, and a circuit board 5; the high-capacity battery 4 supplies power to the brushless motor 3 through the circuit board 5, and the circuit board 5 has a power button 6 that passes through the electric base 2.

[0032] The main body tool rest is installed on the top of the insulating rod 1, and includes a hydraulic base 7, an insulating rod connecting seat 8 and a tool rest main body 9; wherein the hydraulic base 7 is internally provided with a hydraulic mechanism, and the top of the hydraulic base 7 is connected with the tool rest main body 9 in a sleeving manner; the upper end of the tool rest main body 9 is formed with a sickle-shaped upper jaw 10, and the bottom of the tool rest main body 9 is provided with a lower jaw lifting blade 11 which is inserted into the hydraulic base 7 and is in transmission connection with the hydraulic mechanism; the insulating rod connecting seat 8 is arranged on one side of the hydraulic base 7, and the inside of the insulating rod connecting seat 8 is provided with an eccentric wheel mechanism 12 which can control the hydraulic mechanism.

[0033] The inside of the insulating rod 1 is installed with a transmission mechanism, one end of the transmission mechanism is in transmission connection with the brushless motor 3, and the other end of the transmission mechanism is in transmission connection with the eccentric wheel mechanism 12.

[0034] The ground potential electric universal current drainage wire insulation cutter integrates the motor, the transmission mechanism, the cam mechanism and the hydraulic mechanism, and when in use, the live working personnel can hook the branch line drainage wire through the sickle-shaped upper jaw 10 at any angle, and then start the power button 6 on the electric base 2, so that the brushless motor 3 in the electric base 2 can operate, and the brushless motor 3 can drive the eccentric wheel mechanism 12 to rotate through the transmission mechanism, and the eccentric wheel mechanism 12 can drive the hydraulic mechanism to increase the pressure at the same time, so that the lower jaw lifting blade 11 moves to the direction of the sickle-shaped upper jaw 10 to cut the branch line drainage wire. In the above process, the live working personnel only need to hook the branch line drainage wire and start the power button 6, so that the live working personnel does not need to make large movements, and the risk coefficient of the live working personnel is low during the wire cutting process, and the power provided by the motor realizes the man-machine efficiency.

[0035] Further, the specific structure of the tool rest main body 9 and the hydraulic base 7 is also given in the embodiment, as shown in Fig. Figure 4 —5;

[0036] The upper end of the tool rest main body 9 is formed with a sickle-shaped upper jaw 10, and the lower end of the tool rest main body 9 is a rectangular connecting seat 13, and the bottom of the rectangular connecting seat 13 is formed with an open cavity.

[0037] The hydraulic base 7 is a cylindrical structure, and the inside of the hydraulic base 7 is formed with an open cavity and a sealed cavity at two ends respectively, the open cavity of the hydraulic base 7 is connected with the rectangular connecting seat 13 of the tool rest main body 9 in a sleeving manner, so that the bottom of the rectangular connecting seat 13 and the open cavity at one end of the inside of the hydraulic base 7 form a sealed sliding cavity 14; the sealed cavity at the other end of the hydraulic base 7 is an oil bag 15, and the open cavity and the sealed cavity in the hydraulic base 7 are formed with an oil inlet channel 16 and an oil return channel 17, and the oil inlet channel 16 and the oil return channel 17 are respectively provided with an oil inlet control assembly and an oil return control assembly.

[0038] The specific structure of the oil inlet control assembly is as follows:

[0039] The oil inlet control assembly includes a first ball valve 22, a first spring 23, a second ball valve 24, a second spring 25, an oil inlet switch 26, and a third spring 27. The first ball valve 22 and the first spring 23 are located at one end of the oil inlet channel 16 near the oil bladder 15. The second ball valve 24 and the second spring 25 are located at one end of the oil inlet channel 16 near the sliding chamber 14. A pumping chamber 28 is formed in the middle of the oil inlet channel 16. The oil inlet switch 26 and the third spring 27 are located in the pumping chamber 28. The end of the oil inlet switch 26 extends into the insulating rod connecting seat 8 and can contact the eccentric wheel mechanism 12 in the insulating rod connecting seat 8.

[0040] The specific structure of the eccentric wheel mechanism 12:

[0041] The eccentric wheel mechanism 12 includes a bearing seat 37, an eccentric wheel shaft 38, and an eccentric wheel 39. The eccentric wheel 39 is rotatably mounted on the bearing seat 37 via the eccentric wheel shaft 38. The bearing seat 37 is embedded in the top of the insulating rod connecting seat 8. The eccentric wheel shaft 38 is connected to the transmission mechanism inside the insulating rod 1.

[0042] Hydraulic mechanism pressurization principle:

[0043] The eccentric wheel 39 rotates within the insulating rod connecting seat 8 under the drive of the transmission mechanism. The oil inlet switch 26 reciprocates within the pump oil chamber 28 under the action of the eccentric wheel 39 and the third spring 27. When the third spring 27 is in the extended state, the hydraulic oil in the oil bladder 15 is compressed by the internal pressure of the oil bladder 15, causing the first ball valve 22 and the first spring 23 to compress, and the hydraulic oil enters the pump oil chamber 28. When the third spring 27 changes from the extended state to the compressed state, the pressure in the pump oil chamber 28 increases, and the first spring 23 extends, causing the first ball valve 22 to block the connection between the oil inlet channel 16 and the oil bladder 15. At the same time, the hydraulic oil in the pump oil chamber 28 is compressed by the pressure, causing the second ball valve 24 and the second spring 25 to compress, and the hydraulic oil enters the sliding chamber 14. As the oil inlet switch 26 continues to reciprocate within the pump oil chamber 28, the hydraulic oil in the sliding chamber 14 gradually increases, thereby pushing the lower jaw lifting blade 11.

[0044] The specific structure of the oil return control component:

[0045] The oil return control assembly comprises an oil seal needle 29 and an oil return switch 30; the oil return channel 17 is in a Z shape as a whole, and the oil seal needle 29 and the oil return switch 30 are arranged on the bending section of the oil return channel 17; the oil return switch 30 is composed of an upper valve body 31, a valve rod 32, a compression spring 33 and a lower valve body 34, the bottom of the lower valve body 34 is fixedly connected with the oil seal needle 29, the top of the lower valve body 34 is slidably connected with the upper valve body 31 through the valve rod 32 and the compression spring 33, one end of the valve rod 32 penetrates through the upper valve body 31 and is provided with a pull rod 35; the upper valve body 31 and the valve rod 32 are partially exposed outside the hydraulic base 7.

[0046] In order to cooperate with the oil return control assembly, the lower jaw lifting blade 11 has the following structure: specifically, the lower jaw lifting blade 11 comprises a blade 18, a thrust rod 19, a compression spring 20 and a spring mounting seat 21; one end of the thrust rod 19 is fixedly connected with the blade 18, and the other end penetrates through the rectangular connecting seat 13 into the sliding chamber 14 and is fixedly connected with the spring mounting seat 21, and the rod body part of the thrust rod 19 in the sliding chamber 14 is sleeved with the compression spring 20.

[0047] Pressure reduction principle of the hydraulic mechanism;

[0048] When the hydraulic oil in the sliding chamber 14 increases, the compression spring 20 on the thrust rod 19 is compressed, and as the compression spring 20 is gradually compressed, the pressure in the sliding chamber 14 also reaches the upper limit; at this time, the oil seal needle 29 in the oil return channel 17 lifts up the lower valve body 34, so that the compression spring 33 between the lower valve body 34 and the upper valve body 31 is compressed, the oil return channel 17 is opened at the communication position with the oil bag 15, and the oil flows back to the oil bag 15; the compression spring 20 drives the thrust rod 19 to make the blade 18 and the spring mounting seat 21 return to the original position. When the hydraulic mechanism fails to reduce pressure, the pull rod 35 can be manually pulled to move the lower valve body 34 and the oil seal needle 29, so that the oil return channel 17 is opened at the communication position with the oil bag 15, and the oil flows back to the oil bag 15.

[0049] Further, the bottom of the oil bag 15 is provided with an oil injection valve 36. The oil injection valve 36 can supplement the hydraulic oil in the oil bag 15, and can also adjust the internal pressure of the oil bag 15. The oil injection valve 36 is a prior art and can be obtained from the market, and its specific manufacturer and model and working principle will not be described here.

[0050] Further, the specific structure of the transmission mechanism is also given in the embodiment, as shown in Figure 3 The transmission mechanism comprises a transmission main shaft 40, a connecting piece 41 and a transmission pin 42; specifically, one end of the transmission main shaft 40 is in transmission connection with the brushless motor 3 through the connecting piece 41 and the transmission pin 42, and the other end is in transmission connection with the eccentric shaft 38 through the connecting piece 41 and the transmission pin 42.

[0051] In another embodiment of the present application, as shown in Figure 6 The insulating rod 1 is composed of several insulating connecting rods 43. The top of the insulating connecting rod 43 is provided with a connecting head 44, and the bottom is provided with a connecting seat 45. The insulating connecting rods 43 are connected through the connecting head 44 and the connecting seat 45. The length of the insulating rod 1 can be changed according to the actual operation requirements by connecting the insulating rod 1 with several insulating connecting rods 43.

[0052] In order to change the length of the insulating rod 1, the transmission mechanism in the insulating rod 1 is also changed. Each insulating connecting rod 43 is provided with a transmission connecting shaft 46. The transmission connecting shafts 46 are connected through the connecting piece 41 and the transmission pin 42. One end of the transmission connecting shaft 46 in the first insulating connecting rod 43 is connected with the eccentric shaft 38 through the connecting piece 41 and the transmission pin 42. One end of the transmission connecting shaft 46 in the last insulating connecting rod 43 is connected with the brushless motor 3 through the connecting piece 41 and the transmission pin 42.

[0053] In another embodiment of the present application, as shown in Figure 1 The insulating rod connecting seat 8 is also provided with a speed reducer 47. The eccentric shaft 38 is connected with the transmission mechanism in the insulating rod 1 through the speed reducer 47. The speed reducer 47 can reduce the speed and increase the output torque, so as to ensure the stability of the cam mechanism and the reciprocating movement of the oil inlet switch 26 in the oil pump cavity 28.

[0054] In another embodiment of the present application, as shown in Figure 1 The upper scythe-shaped jaw 10 is provided with a guide rail 48 which can guide the lifting of the lower jaw lifting blade 11. The guide rail 48 can ensure the stability of the movement of the lower jaw lifting blade 11 relative to the upper scythe-shaped jaw 10, and further ensure that the lower jaw lifting blade 11 will not deviate and accurately cut the branch line and the lead line.

Claims

1. A type of electric universal drain wire insulated wire cutter for ground potential, characterized in that: This ground potential electric universal drain wire insulated wire cutter includes an insulating rod, an electric base, a transmission mechanism, and a main blade holder. The electric base is installed at the bottom of the insulating rod and contains a brushless motor, a high-capacity battery, and a circuit board. The high-capacity battery powers the brushless motor through the circuit board, which has a power button passing through the electric base. The main blade holder is installed at the top of the insulating rod and includes a hydraulic base, an insulating rod connecting seat, and a blade holder body. The hydraulic base contains a hydraulic mechanism, and its top is fitted onto the blade holder body. The upper end of the blade holder body forms a sickle-shaped upper jaw, and its bottom has... The lower jaw lifting blade passes through the blade holder body and is inserted into the hydraulic base, where it is connected to the hydraulic mechanism for transmission. The insulating rod connecting seat is located on one side of the hydraulic base and contains an eccentric wheel mechanism that can control the hydraulic mechanism. A transmission mechanism is installed inside the insulating rod, with one end connected to a brushless motor and the other end connected to the eccentric wheel mechanism. The brushless motor of the electric base can drive the eccentric wheel mechanism to rotate through the transmission mechanism. As the eccentric wheel mechanism rotates, it can also drive the hydraulic mechanism to increase pressure, causing the lower jaw lifting blade to move towards the sickle-shaped upper jaw to cut the drain line.

2. The ground potential electric universal drain wire insulation cutter according to claim 1, characterized in that: The upper end of the tool holder body has a sickle-shaped upper jaw, and the lower end has a rectangular connecting seat with an open cavity at the bottom. The hydraulic base is a cylindrical structure with an open cavity and a sealed cavity at its two ends. One end of the open cavity of the hydraulic base is fitted into the rectangular connecting seat of the tool holder body, so that the bottom of the rectangular connecting seat and the open cavity at one end of the hydraulic base form a sealed sliding cavity. The sealed cavity at the other end of the hydraulic base is an oil bladder, and an oil inlet channel and an oil return channel are formed between the open cavity and the sealed cavity. The oil inlet channel and the oil return channel are respectively equipped with an oil inlet control component and an oil return control component.

3. The ground potential electric universal drain wire insulation cutter according to claim 2, characterized in that: The lower jaw lifting blade includes a blade, a push rod, a compression spring, and a spring mounting base; one end of the push rod is fixedly connected to the blade, and the other end passes through the insertion sliding cavity of the rectangular connecting seat and is fixedly connected to the spring mounting base; the rod part of the push rod located in the sliding cavity is fitted with a compression spring.

4. The ground potential electric universal drain wire insulation cutter according to claim 2, characterized in that: The oil inlet control assembly includes a first ball valve, a first spring, a second ball valve, a second spring, an oil inlet switch, and a third spring; the first ball valve and the first spring are located at one end of the oil inlet channel near the oil bladder; the second ball valve and the second spring are located at one end of the oil inlet channel near the sliding chamber; a pumping chamber is formed in the middle of the oil inlet channel, and the oil inlet switch and the third spring are located in the pumping chamber, with the end of the oil inlet switch extending into the insulating rod connecting seat and able to contact the eccentric wheel mechanism in the insulating rod connecting seat.

5. The ground potential electric universal drain wire insulation cutter according to claim 2, characterized in that: The oil return control assembly includes an oil seal pin and an oil return switch; the oil return channel is generally Z-shaped, with the oil seal pin and oil return switch located on the bend of the oil return channel; the oil return switch consists of an upper valve body, a valve stem, a compression spring, and a lower valve body. The bottom of the lower valve body is fixedly connected to the oil seal pin, and its top is slidably connected to the upper valve body through the valve stem and the compression spring. One end of the valve stem passes through the upper valve body and is equipped with a pull rod; the upper valve body and valve stem are partially exposed outside the hydraulic base.

6. The ground potential electric universal drain wire insulation cutter according to claim 2, characterized in that: An oil injection valve is installed at the bottom of the oil bladder.

7. The ground potential electric universal drain wire insulation cutter according to claim 1, characterized in that: The eccentric wheel mechanism includes a bearing housing, an eccentric wheel shaft, and an eccentric wheel. The eccentric wheel is rotatably mounted on the bearing housing via the eccentric wheel shaft. The bearing housing is embedded in the top of the insulating rod connecting seat. The eccentric wheel shaft is connected to a transmission mechanism inside the insulating rod. The transmission mechanism includes a transmission main shaft, a connecting component, and a transmission pin. One end of the transmission main shaft is connected to a brushless motor via the connecting component and the transmission pin, and the other end is connected to the eccentric wheel shaft via the connecting component and the transmission pin.

8. The electric universal ground potential drain wire insulation cutter according to claim 7, characterized in that: The insulating rod is composed of several insulating connecting rods; a connector is installed at the top of the insulating connecting rod and a connecting seat is installed at the bottom; the insulating connecting rods are connected to each other by the connector and the connecting seat; each section of the insulating connecting rod is provided with a transmission connecting shaft, and the transmission connecting shafts are connected to each other by a connecting member and a transmission pin. One end of the transmission connecting shaft in the first section of the insulating connecting rod is connected to the eccentric wheel shaft by the connecting member and the transmission pin, and one end of the transmission connecting shaft in the last section of the insulating connecting rod is connected to the brushless motor by the connecting member and the transmission pin.

9. The ground potential electric universal drain wire insulation cutter according to claim 7, characterized in that: The insulating rod connecting seat is also equipped with a speed reducer, and the eccentric wheel shaft is connected to the transmission mechanism inside the insulating rod through the speed reducer.

10. The ground potential electric universal drain wire insulation cutter according to claim 1, characterized in that: The sickle-shaped upper jaw is equipped with a guide rail that can guide the lower jaw's lifting blade to move up and down.

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