Electric wire cutter capable of being clamped

Abstract

The utility model relates to the technical field of electric power system equipment, in particular to a clamping electric wire cutter which comprises a control module, a cutting mechanism and a clamping mechanism. The shearing mechanism comprises a movable blade, a static blade and a shearing driving motor, the movable blade is a non-full-circle outer gear, a circle center hole of the movable blade is rotationally connected with a hole of the static blade, meanwhile, cutting edges are arranged on the movable blade and the static blade respectively, and the shearing driving motor drives the movable blade to rotate through a reduction gear set, so that the two cutting edges coincide with each other. The shearing purpose is achieved; the clamping mechanism and the control module are respectively arranged on the other side of the static blade, and the control module respectively controls the clamping mechanism and the shearing mechanism, so that the wire is firstly clamped and then sheared. According to the electric wire cutter capable of being clamped, the whole device can be hung on a cut wire, the device does not need to be lifted effortlessly before the wire is cut off, and only the insulating rod needs to be held by hand. The device is convenient to operate, good in safety and reliable in transmission.

Description

Technical Field

[0001] The utility model relates to the technical field of power system equipment, and particularly relates to a clampable electric wire cutter. Background Art

[0002] When wire cutting operation is required in live working of power lines, in order to prevent the wire from shifting, generally two maintenance personnel are needed for construction. One maintenance personnel operates the scissors, and the other maintenance personnel operates the cable clamp to prevent the cable from shifting at the moment of being cut short. Although this method meets the safety requirements, it requires two maintenance personnel to reach the working surface at the same time. If it is pole climbing operation, two maintenance personnel need to climb onto the same utility pole. This method will cause the working surface to be relatively crowded, not only inconvenient for construction, but also prone to falling risks. Content of the Utility Model

[0003] The purpose of the utility model is to provide a clampable electric wire cutter, which overcomes the disadvantages of requiring the cooperation of multiple maintenance personnel, inconvenient construction, low safety, etc. during the wire cutting operation of existing power line maintenance.

[0004] To this end, the utility model provides a clampable electric wire cutter, which includes a control module, a shearing mechanism and a clamping mechanism; the shearing mechanism includes a moving blade, a static blade and a shearing driving motor. The moving blade is a non-circular external gear, the central hole of the moving blade is rotatably connected to the hole of the static blade, and at the same time, cutting edges are respectively arranged on the moving blade and the static blade. The shearing driving motor drives the moving blade to make a rotational motion through a reduction gear set, so that the two cutting edges coincide with each other to achieve the shearing purpose; the clamping mechanism and the control module are respectively installed on the other side of the static blade, and the control module respectively controls the clamping mechanism and the shearing mechanism to realize the prior clamping and then shearing of the wire.

[0005] As a preferred technical solution of the present application, the static blade is an L-shaped plate structure, and a first cutting edge is arranged at the inner corner thereof, and a second cutting edge is arranged at one end of the moving blade.

[0006] As a preferred technical solution of the present application, the reduction gear set includes an output gear and a double-layer gear. The output gear is sleeved on the output shaft of the shearing driving motor, the double-layer gear is fixed on the static blade through a bearing, the large gear of the double-layer gear meshes with the output gear, and the small gear of the double-layer gear meshes with the external teeth of the moving blade.

[0007] As a preferred technical solution of the present application, the clamping mechanism includes a left clamping block, a right clamping block, a clamping drive motor, a clamping lead screw, and a connecting gear set; the clamping drive motor and the lead screw are both fixed on the right clamping block, and at the same time, a copper nut cooperating with the lead screw is arranged on the left clamping block, and the clamping drive motor drives the lead screw to rotate through the connecting gear set, so that the left clamping block can slide left and right relative to the right clamping block, and then clamp the wire to be sheared.

[0008] As a preferred technical solution of the present application, the clamping mechanism further includes a clamping fixing block, and the clamping mechanism is fixedly connected to the static blade through the clamping fixing block.

[0009] As a preferred technical solution of the present application, the clamping mechanism further includes three sliding shafts, the left clamping block is slidably connected to the three sliding shafts, and at the same time, the right clamping block is connected to the static blade through a tension spring.

[0010] As a preferred technical solution of the present application, an output shaft gear is installed on the output shaft of the clamping drive motor, and a gear is also installed at the end of the lead screw, and the output shaft gear meshes with the gear at the end of the lead screw.

[0011] As a preferred technical solution of the present application, the cutting drive motor is a brushless reduction motor, and the clamping drive motor is also a brushless reduction motor.

[0012] As a preferred technical solution of the present application, an insulating rod is further provided, and the insulating rod is detachably installed at the bottom of the static blade through an insulating rod connecting plum blossom head.

[0013] As a preferred technical solution of the present application, a power supply module is further provided, and the power supply module includes a rechargeable battery and a battery socket, and the rechargeable battery is detachably installed on the battery socket.

[0014] The clampable electric wire cutter provided by the present utility model can mount the entire device on the wire to be cut. Before cutting the wire, there is no need to hold the device with effort, and only need to hold the insulating rod by hand. It is convenient to operate, has good safety, and reliable transmission. The cutter device has a clamping mechanism, which can clamp the wire to be sheared before cutting the wire. When the wire is cut, it will not fall freely, causing unnecessary safety hazards, but is clamped on the cutter device and can be recovered to the ground together with the cutter device.

[0015] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the present application in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the clampable electric wire cutter of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the shearing mechanism in the clampable electric wire cutter of the present utility model Figure 1 ;

[0019] Figure 3 is a schematic structural diagram of the shearing mechanism in the clampable electric wire cutter of the present utility model Figure 2 ;

[0020] Figure 4 is a schematic structural diagram of the clamping mechanism in the clampable electric wire cutter of the present utility model Figure 1 ;

[0021] Figure 5 is a schematic structural diagram of the clamping mechanism in the clampable electric wire cutter of the present utility model Figure 2 ;

[0022] Description of reference numerals

[0023] 1, insulating rod; 2, power supply module; 3, control module; 4, shearing mechanism; 5, clamping mechanism; 6, wire; 21, rechargeable battery; 22, battery socket; 41, static blade; 42, moving blade; 43, shearing drive motor; 44, double-layer gear; 45, output gear; 46, insulating rod connecting plum blossom head; 47, connecting screw; 421, external teeth; 422, edge two; 51, left clamping block; 52, right clamping block; 53, clamping fixing block; 54, clamping drive motor; 55, lead screw; 56, sliding shaft; 57, connecting gear set. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail this application.

[0025] As Figures 1 to 5 shown, a clampable electric wire cutter of the present utility model includes an insulating rod 1 and a clampable shearing device detachably connected to the end of the insulating rod 1. The clampable shearing device includes a power supply module 2, a control module 3, a shearing mechanism 4 and a clamping mechanism 5. The control module 3 controls the clamping mechanism 5 and the shearing mechanism 4 respectively, so as to realize the clamping and shearing of the device.

[0026] The stationary blade 41 of the shearing mechanism 4 is used as a fixed body, and the moving blade 42 is connected to the stationary blade 41 through the center of the circle, so that the moving blade can rotate and reciprocate with the stationary blade along the center of the circle. The clamping mechanism 5 is installed on the other side of the stationary blade 41 opposite to the moving blade 42, and the clamping mechanism 5 is fixed to the fixed body of the stationary blade 41 through threads. The control module 3 and the clamping mechanism 5 are installed on the same side of the stationary blade, and the power module 2 is fixed to the side of the control module 3.

[0027] When the device is working, it is mounted on the wire 6 to be cut, the clamping mechanism 5 clamps the wire 6 to be cut, and the moving blade 42 of the cutting mechanism rotates, and the wire is cut by squeezing the moving blade 42 and the stationary blade 41.

[0028] like Figure 2 , Figure 3 As shown, the shearing mechanism 4 includes a stationary blade 41, a moving blade 42 connecting screw 47, a shearing drive motor 43, a reduction gear set and an insulating rod connecting plum head 46, the stationary blade 41 serves as a fixed body, and the insulating rod 1 is detachably installed at the bottom of the stationary blade 41 through the insulating rod connecting plum head 46.

[0029] The stationary blade 41 is an L-shaped structure, and a cutting edge 1 is provided at the inner corner. The moving blade 42 is a non-full-circle external gear, and the center angle of the moving blade 42 is 3 / 4 of a circle. The center hole of the moving blade 42 is rotatably connected to the hole of the stationary blade 41, and is fixed by a connecting screw 47, so that the moving blade 42 can perform a rotational reciprocating motion on the stationary blade 41, and there is a cutting edge 2 422 on the moving blade, so that when the moving blade performs a rotational motion, the cutting edge 2 422 of the moving blade overlaps with the cutting edge 1 of the stationary blade, thereby achieving the purpose of shearing.

[0030] The power source of the moving blade 42 is the shear drive motor 43 fixed on the static blade. The shear drive motor 43 is a brushless reduction motor. The shear drive motor 43 is fixed on the static blade 41. The shear drive motor 43 is connected to the moving blade 42 through a reduction gear set, and the reduction gear set includes an output gear 45 and a double-layer gear 44.

[0031] The output gear 45 is sleeved on the output shaft of the shearing drive motor 43, and the double-layer gear 44 is also fixed on the static blade 41 through a bearing. The upper large gear of the double-layer gear 44 meshes with the output gear 45 on the shearing drive motor, and the lower small gear of the double-layer gear meshes with the external teeth 421 of the moving blade. The moving blade and the brushless reduction motor are driven by multi-stage gears to achieve the effect of deceleration and amplification of torque, so that the shearing mechanism can shear thicker wires.

[0032] Power transmission process of the shearing mechanism 4: The driving motor rotates, driving the output gear 45 on the output shaft of the driving motor to rotate. The output gear 45 drives the large gear of the double-layer gear 44 to rotate. After the large gear of the double-layer gear rotates, it drives the small gear of the double-layer gear to rotate. The small gear of the double-layer gear meshes with the external teeth 421 of the moving blade, thus achieving the purpose of driving the moving blade by the shearing driving motor and realizing the shearing purpose.

[0033] As Figures 4 to 5 shown in the figure, the clamping mechanism 5 includes a left clamping block 51, a right clamping block 52, a clamping fixed block 53, a clamping driving motor 54, a clamping lead screw 55, a sliding shaft 56, and a lead screw motor connection gear set 57. The clamping mechanism 5 is connected to the stationary blade 41 through the clamping fixed block 53; both the clamping driving motor 54 and the lead screw 55 are fixed on the right clamping block 52, enabling the left clamping block 51 to slide left and right relative to the right clamping block 52.

[0034] The clamping driving motor 54 drives the lead screw 55 to rotate through the connection gear set 57. The rotation of the lead screw 55 causes the left and right clamping blocks to slide on the three sliding shafts 56, thus achieving the purpose of clamping or loosening. The clamping mechanism is fixed to the shearing mechanism 4 through the clamping fixed block 53 on the clamping mechanism, enabling the two mechanisms to cooperate with each other.

[0035] The left clamping block 51 is slidably connected to the three sliding shafts 56. The right clamping block 52 is connected to the stationary blade 41 through a tension spring. The moving blade 42 can push the right clamping block 52 to slide away from the moving blade 42 on the three sliding shafts 56 by squeezing the clamped wire, thereby enabling the clamped wire to be in full contact with the cutting edge of the stationary blade 41.

[0036] The clamping driving motor 54 of the clamping mechanism 5 is a brushless reduction motor. A gear is installed on the output shaft of the clamping driving motor 54, and a gear is also installed at the end of the lead screw 55. The output shaft gear of the clamping driving motor 54 meshes with the gear at the end of the lead screw. Therefore, when the brushless reduction motor rotates, it will drive the lead screw 55 to rotate together. The rotation of the lead screw will cause the copper nut to move left or right, and the copper nut is arranged on the left clamping block 51, so the clamping and opening of the two clamping blocks can be achieved.

[0037] In addition, the right clamping block 52 and the clamping fixed block 53 in the clamping mechanism are fixedly connected and have a small degree of floating. After the wire to be cut is completely clamped, during the shearing process of the cutter, the moving blade will push against the wire to be sheared and move to the right. Since the right clamping block is not completely fixed, the two clamping blocks can be pushed and slide to the right as a whole by the moving blade after clamping the wire, enabling the moving blade to cut the left side of the wire and the stationary blade to cut the right side of the wire. According to the different diameters of the wire to be cut, the sliding distance is also different. If the right clamping block is completely fixed, the stationary blade will not function during wire cutting, affecting the shearing effect.

[0038] As Figure 1 shown, in this solution, the control module 3 includes a PCB control board and a control circuit box. A remote control receiving module is installed on the PCB control board, which can be wirelessly communicatively connected to a remote control. The control module 3 is fixedly installed on one side of the static blade. The power module 2 is composed of a rechargeable battery 21 and a battery socket 22. The battery socket 22 of the battery module is installed at the outer end of the control module 3, and the rechargeable battery 21 is detachably installed on the battery socket 22. The power module 2 can also have a power cord with a voltage conversion function and can be directly connected to the mains electricity.

[0039] The working principle and process of the clampable electric wire cutter of the present utility model are briefly described below.

[0040] First, install the clampable cutting device on the insulating rod. One person climbs the pole. After climbing the pole, hang the device on the wire to be cut. At this time, only need to hold the insulating rod by hand. The ground remote control operator remotely controls the device to clamp the wire to be cut. At this time, the operator on the pole needs to hold the insulating rod tightly. After clamping the wire, the ground remote control operator remotely controls the device to cut again. At this time, the cutting mechanism of the device works and the wire will be cut off. At this time, the operator on the pole holds the insulating rod tightly and removes the device. The cut wire clamped on the device is also removed together with the device.

[0041] The above-mentioned electric wire cutter has a clamping mechanism, which can clamp the wire to be cut before cutting the wire. After the wire is cut off, it will not fall freely, causing unnecessary safety hazards, but is clamped on the cutter device and can be recovered to the ground together with the cutter device. In addition, the device is small in size and light in weight, with dimensions of 170mm * 126mm * 203mm in length, width and height, and weighs 2.28 kg without the battery; it has an emergency stop function and can make the device stop urgently at any time; it has an automatic reset function for the cutter. After cutting off the wire, the cutter can automatically reset to the initial position.

[0042] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A clampable electric wire trimmer, characterized in that: It comprises a control module (3), a shearing mechanism (4) and a clamping mechanism (5); The shearing mechanism (4) comprises a movable blade (42), a stationary blade (41) and a shearing drive motor (43); the movable blade (42) is a non-full-circle external gear; the center hole of the movable blade (42) is rotatably connected to the hole of the stationary blade (41); and the movable blade (42) and the stationary blade (41) are respectively provided with cutting edges; the shearing drive motor (43) drives the movable blade (42) to rotate through a reduction gear set, so that the two cutting edges overlap each other, thereby achieving the purpose of shearing; The clamping mechanism (5) and the control module (3) are respectively installed on the other side of the stationary blade (41), and the control module (3) controls the clamping mechanism (5) and the shearing mechanism (4) respectively to achieve first clamping and then shearing of the wire (6).

2. The clampable electric wire trimmer according to claim 1, characterized in that: The stationary blade (41) is an L-shaped plate structure, and a first cutting edge is provided at an inner corner thereof; and a second cutting edge (422) is provided at one end of the movable blade (42).

3. The clampable electric wire trimmer according to claim 1, characterized in that: The reduction gear set comprises an output gear (45) and a double-layer gear (44), wherein the output gear (45) is sleeved on the output shaft of the shearing drive motor (43), and the double-layer gear (44) is fixed on the stationary blade (41) through a bearing, and the large gear of the double-layer gear (44) is meshed with the output gear (45), and the small gear of the double-layer gear (44) is meshed with the external teeth (421) of the movable blade (42).

4. The clampable electric wire trimmer according to claim 1, characterized in that: The clamping mechanism (5) comprises a left clamping block (51), a right clamping block (52), a clamping drive motor (54), a clamping screw rod (55) and a connecting gear set (57); The clamping drive motor (54) and the screw rod (55) are both fixed on the right clamping block (52), and a copper nut matching the screw rod (55) is provided on the left clamping block (51). The clamping drive motor (54) drives the screw rod (55) to rotate through the connecting gear set (57), so that the left clamping block (51) can slide left and right relative to the right clamping block (52), thereby clamping the wire (6) to be cut.

5. The clampable electric wire trimmer according to claim 4, characterized in that: The clamping mechanism (5) further comprises a clamping fixing block (53), through which the clamping mechanism (5) is fixedly connected to the stationary blade (41).

6. The clampable electric wire trimmer according to claim 4, characterized in that: The clamping mechanism (5) further comprises three sliding shafts (56), the left clamping block (51) is slidably connected to the three sliding shafts (56), and the right clamping block (52) is connected to the stationary blade (41) via a tension spring.

7. The clampable electric wire trimmer according to claim 4, characterized in that: An output shaft gear is mounted on the output shaft of the clamping drive motor (54), and a gear is also mounted on the end of the screw rod (55). The output shaft gear meshes with the gear at the end of the screw rod (55).

8. The clampable electric wire trimmer according to claim 4, characterized in that: The shearing drive motor (43) is a brushless reduction motor, and the clamping drive motor (54) is also a brushless reduction motor.

9. The clampable electric wire trimmer according to claim 1, characterized in that: An insulating rod (1) is also provided, and the insulating rod (1) is detachably mounted on the bottom of the stationary blade (41) via an insulating rod-connected plum blossom head (46).

10. The clampable electric wire trimmer according to claim 1, characterized in that: A power module (2) is also provided, the power module (2) comprising a rechargeable battery (21) and a battery socket (22), the rechargeable battery (21) being detachably mounted on the battery socket (22).

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