Load current intelligent alarm electric cutter

Abstract

The utility model relates to the technical field of power equipment electric cutters, and particularly discloses a load current intelligent alarm electric cutter, which comprises a remote controller, U-shaped ampere meters, a shearing mechanism and a power mechanism, the power mechanism is arranged at the lower end of the shearing mechanism, the shearing mechanism is mounted on an operating rod mechanism, the U-shaped ampere meters are respectively mounted on the shearing mechanism, and the U-shaped ampere meters are respectively connected with the operating rod mechanism. The remote controller is matched with the power mechanism; the shearing mechanism comprises a protective sleeve, a tool bit seat, a tripod, a piston rod, a spring and two blades, and the tool bit seat is arranged in the protective sleeve; the two blades are oppositely arranged on the tool bit seat, the protective sleeve, the tool bit seat and the two blades are connected together through a blade shaft, and the two blades are opened and closed around the blade shaft; the bottom end of each blade is connected with the tripod through a supporting rod; the piston rod is arranged in the tool bit seat in a vertically movable manner; the tripod is connected with the top end of the piston rod through a fastening bolt, and a gasket is arranged at the joint of the tripod and the top end of the piston rod.

Description

Technical Field

[0001] The utility model relates to the technical field of electric cutters for power equipment, in particular to an electric cutter with intelligent alarm for load current. Background Art

[0002] In recent years, urban power distribution lines have gradually changed from overhead transmission lines to power cables, especially 10-110 kV cables have been used in large quantities. A cable line requires two terminal heads and several intermediate joints. The workload is large and the construction environment is complex. The construction workers consume a lot of physical energy, and their mental fatigue and lack of concentration lead to loss of control of operations, personal injury accidents and potential cable head accident hazards. A good construction environment, construction tools and superb technical level are necessary conditions to ensure the quality of cable head production. There must be no carelessness, otherwise it will cause great waste and delay the construction period and fail to supply power on time.

[0003] Cable cutters are needed for making cable heads, but existing cable cutters are single and can only be operated by hand on site. Moreover, the center of gravity of the cable cutting tool is relatively high, and the distance from the axis of the blade to the center of gravity of the blade closing mouth is about 25±1mm. The high center of gravity is easy to get stuck when cutting. The blade needs to be installed with a guide groove or guide rail. Only cables with smaller diameters, such as cables with a diameter not greater than 25mm, can be cut. The cable is easy to get stuck when cutting. Only aluminum stranded cables can be cut. In addition, the load of the circuit being cut cannot be observed during cutting, and the staff cannot understand the cable load more clearly.

[0004] Therefore, in view of the technical problems described above, there is an urgent need for an electric cutter with intelligent load current alarm. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide an electric cutter with intelligent alarm for load current.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is a load current intelligent alarm electric cutter, comprising:

[0007] A remote controller, a U-shaped ammeter, a shearing mechanism and a power mechanism, wherein the power mechanism is arranged at the lower end of the shearing mechanism, the shearing mechanism is mounted on the operating rod mechanism, the U-shaped ammeters are respectively mounted on the shearing mechanisms, and the remote controller and the power mechanism cooperate;

[0008] The shearing mechanism comprises a protective sleeve, a cutter head seat, a tripod, a piston rod, a spring and two blades, wherein the cutter head seat is arranged in the protective sleeve; the two blades are arranged on the cutter head seat relatively, and the protective sleeve, the cutter head seat and the two blades are connected together through a blade shaft, and the two blades open and close around the blade shaft; the bottom end of each blade is connected to the tripod through a support rod respectively; the piston rod is movably arranged in the cutter head seat; the tripod is connected to the top end of the piston rod through a fastening bolt, and a gasket is arranged between the connection between the tripod and the top end of the piston rod; the spring is sleeved on the piston rod;

[0009] Two mounting screw holes are provided on one side of the protective cover, a fixing plate is provided on the protective cover, the fixing plate is installed on the protective cover through bolts in the mounting screw holes, and a socket is provided on the fixing plate;

[0010] The U-shaped ammeter includes a detector and a receiver, the lower end of the detector is inserted into the socket, the bottom of the detector jaws is flush with the bottoms of the two blades, and the receiver receives the detector signal;

[0011] The power mechanism comprises a handle, a piston cup sleeve, an oil bag, an oil pump, a gear box, a brushed DC motor, a battery mounting plate, a remote control board and a main control board, wherein the piston cup sleeve, the oil bag, the oil pump, the gear box, the brushed DC motor, the remote control board and the main control board are sequentially arranged in the handle from top to bottom; a piston cup moving up and down is arranged in the piston cup sleeve, and a ring is used to seal the piston cup and the piston cup sleeve; a start button and a pressure relief button are arranged on the handle; the battery mounting plate is arranged at the bottom end of the handle, and a lithium battery is installed on the battery mounting plate, and the lithium battery supplies power to the remote control board, the main control board and the brushed DC motor respectively; the remote control board, the brushed DC motor, the start button and the pressure relief button are respectively connected to the main control board;

[0012] The bottom end of the cutter head seat is threadedly connected to the top end of the handle, and the bottom end of the piston rod is arranged in the piston cup;

[0013] The remote controller communicates with the remote control panel.

[0014] As an improvement, a cutter bracket is provided on the handle, and an internal threaded sleeve is provided at one end of the cutter bracket.

[0015] As an improvement, a blade shaft anti-loosening bolt is provided at the connection between the blade shaft and the cutter head seat; the upper end of the support rod is connected to the bottom end of the corresponding blade through the support rod shaft and the retaining spring, and the lower end of the support rod is connected to the tripod through the support rod shaft and the retaining spring.

[0016] As an improvement, the gear box is integrated on the motor shaft of the brushed DC motor.

[0017] Compared with the prior art, the advantages of the utility model are as follows: 1. The equipment can be widely used for cutting armored, non-armored, all-copper, all-aluminum cables and aluminum conductor aluminum stranded cables with a diameter not exceeding 35mm and steel core; it can be operated manually or remotely controlled from a high altitude, and can be equipped with a standard operating rod part or an extension rod for operation according to the cable height; it is equipped with a DC18V rechargeable lithium battery, and can automatically release pressure and reset after cutting is completed;

[0018] 2. A U-shaped ammeter including a detector is installed on the cutter, so that the detector can be used to detect the amount of electricity in the cut cable. The receiver then receives the detector signal and displays the corresponding load data, which makes it easier for the staff to choose different operating methods according to the situation and is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the overall structure of a shearing mechanism and a power mechanism of an electric cutter with intelligent load current alarm.

[0020] Figure 2 The utility model is a disassembly schematic diagram of a load current intelligent alarm electric cutter power mechanism.

[0021] Figure 3 The utility model is a disassembly schematic diagram of a shearing mechanism of an electric cutter with intelligent load current alarm.

[0022] Figure 4 The utility model is a structural schematic diagram of a load current intelligent alarm electric cutter detector and a fixing plate.

[0023] Figure 5 The utility model is a structural schematic diagram of a load current intelligent alarm electric cutter remote controller.

[0024] Figure 6 The utility model is a structural schematic diagram of a load current intelligent alarm electric cutter receiver.

[0025] As shown in the figure:

[0026] 100, remote control, 201, protective cover, 201a, mounting screw hole, 201b, fixing plate, 201c, socket, 202, blade seat, 203, tripod, 204, piston rod, 205, spring, 206, blade, 207, blade shaft, 208, support rod, 209, fastening bolt, 210, gasket, 211, blade shaft anti-loosening bolt, 212, support rod shaft, 213, retaining spring, 3 01, detector, 302, receiver, 401, handle, 401a, start button, 401b, pressure relief button, 401c, cutter bracket, 401d, internal thread sleeve, 402, piston cup sleeve, 403, oil bag, 404, oil pump, 405, gear box, 406, battery mounting plate, 406a, lithium battery, 407, remote control board, 408, main control board, 409, brushed DC motor. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Combined with Figure 1-6 , a load current intelligent alarm electric cutter, comprising:

[0029] A remote controller 100, a U-shaped ammeter, a shearing mechanism and a power mechanism, wherein the power mechanism is arranged at the lower end of the shearing mechanism, the shearing mechanism is mounted on the operating rod mechanism, the U-shaped ammeter is respectively mounted on the shearing mechanism, and the remote controller 100 and the power mechanism cooperate;

[0030] The shearing mechanism includes a protective sleeve 201, a cutter head seat 202, a tripod 203, a piston rod 204, a spring 205 and two blades 206. The protective sleeve 201 adopts a half structure, and the cutter head seat 202 is arranged in the protective sleeve 201; the two blades 206 are relatively arranged on the cutter head seat 202, and the protective sleeve 201, the cutter head seat 202 and the two blades 206 are connected together through a blade shaft 207, and the two blades 206 open and close around the blade shaft 207; the bottom end of each blade 206 is connected to the tripod 203 through a support rod 208, and a blade shaft anti-loosening bolt 211 is provided at the connection between the blade shaft 207 and the cutter head seat 202;

[0031] Specifically, the upper end of the support rod 208 is connected to the bottom end of the corresponding blade 206 through the support rod shaft 212 and the retaining spring 213, and the lower end of the support rod 208 is connected to the tripod 203 through the support rod shaft 212 and the retaining spring 213; the piston rod 204 is movably arranged in the cutter head seat 202; the tripod 203 is connected to the top of the piston rod 204 through a fastening bolt 209, and a gasket 210 is arranged between the connection between the tripod 203 and the top of the piston rod 204; the fastening bolt 209 adopts an M5 hexagonal cylindrical head bolt, and the spring 205 is sleeved on the piston rod 204. When the power is lost, the piston rod 204 is reset under the action of the spring 205;

[0032] The two blades 206 form a group, and the material is mold steel, which is processed by metal heat treatment. There are two holes on it, one hole is used to connect with the cutter head seat 202 and the other blade 206, and the other hole is used to connect with the support rod 208; the Rockwell hardness of the blade 206 is 60-63, and the cutting edge of the blade 206 is a trapezoidal structure that is narrow at the top and wide at the bottom; the blade shaft 207 is a spring steel product, connecting the two blades 206 and the cutter head seat 202; the cutter head seat 202 is an aluminum alloy product, which is the central component of the shearing mechanism, and is provided with a hole on it, which can be connected to the blade 206, and a thread is provided below it, which can be connected to the handle of the power part 3. The protective sleeve 201 is made of nylon and is attached to the cutter head seat 202 to protect the cutter head seat 202 and its internal components; the support rod 208 is made of mold steel and is provided with two holes, one hole is connected to the blade 206, and the other hole is connected to the tripod 203; the support rod shaft 212 is made of mold steel and is provided with grooves on both sides. The support rod shaft 212 runs through the holes of the support rod 208 to connect the blade 206 and the tripod 203; the retaining spring 213 is made of spring steel and is installed in the groove of the support rod shaft 212 to play a positioning and fixing role; the tripod 203 is made of mold steel and is connected to the support rod 208 at the top and the piston rod 204 at the bottom. It reciprocates under the push of the piston rod 204; the piston rod 204 is made of titanium alloy and is installed in the cutter head seat 202. It is connected to the tripod 203 at the top and contacts with the piston cup of the power part 3 at the bottom. It reciprocates up and down under the action of the piston cup;

[0033] When working, under the push of the piston rod 204, the two blades 206 are closed to achieve the shearing function; under the action of the elastic force of the spring 205, the two blades 206 are opened; the opening size of the two blades is suitable for shearing armored, non-armored, all-copper, all-aluminum cables and steel core conductor aluminum stranded cables;

[0034] Two mounting screw holes 201a are provided on one side of the protective cover 201, a fixing plate 201b is provided on the protective cover 201, the fixing plate 201b is installed on the protective cover 201 through bolts in the mounting screw holes 201a, and a socket 201c is provided on the fixing plate 201b;

[0035] The U-shaped ammeter includes a detector 301 and a receiver 302. The lower end of the detector 301 is inserted into the socket 201c. The bottom of the U-shaped jaw of the detector 301 is flush with the bottom of the two blades 206. In this way, when detecting the cable load and cutting the cable, they will not be affected by each other. The receiver 302 receives the signal of the detector 301.

[0036] The power mechanism includes a handle 401, a piston cup sleeve 402, an oil bag 403, an oil pump 404, a gear box 405, a brushed DC motor 409, a battery mounting plate 406, a remote control board 407 and a main control board 408. The piston cup sleeve 402, the oil bag 403, the oil pump 404, the gear box 405, the brushed DC motor 409, the remote control board 407 and the main control board 408 are arranged in the handle 401 from top to bottom. According to the appearance structure and performance of different components, the handle 401 is provided with a multi-sheet metal groove structure to fix the components and realize the function. The piston cup sleeve 402 is provided with a piston cup moving up and down along it, and the piston cup and the piston cup sleeve 402 are sealed by an O-ring; the piston cup can make a reciprocating motion up and down in the piston cup sleeve 402;

[0037] The handle 401 is provided with a start button 401a and a pressure relief button 401b. The start button 401a is placed on the outside of the handle 401 and has a spring. The electric cutter is started by pressing the start button 401a and stopped by releasing the start button 401a. The pressure relief button 401b is placed on the other side of the handle 401 at an angle of 180° to the start button 401a. The pressure relief button 401b is a manual button used for manual resetting of the tool after emergency shutdown. The battery mounting plate 406 is arranged on the handle 401. At the bottom, the battery mounting plate 406 is a snap-on type, which can be equipped with a DC18V series rechargeable lithium battery 406a of the standard configuration of power tools in the industry. The operator can select batteries of different capacities such as 1.5Ah to 4.0Ah according to the needs of the operation. The lithium battery 406a supplies power to the remote control board 407, the main control board 408 and the brushed DC motor 409 respectively; the remote control board 407, the brushed DC motor 409, the start button 401a and the pressure relief button 401b are respectively connected to the main control board 408;

[0038] The oil bag 403 is made of soft transparent rubber material. When the hydraulic oil enters or is discharged from the piston cup sleeve 402, the oil bag 403 shrinks or expands. The oil pump 404 includes a one-way valve and a plunger pump. When the small piston in the plunger pump moves up and down, the hydraulic oil is sucked into the piston cup sleeve 402 by the oil bag 403, acts on the bottom of the piston cup, and drives the piston cup to move up and down. The motor shaft of the brushed DC motor 409 is integrated with a gear box 405. The gear box 405 changes the rotation of the motor into an up and down reciprocating motion, and the top shaft drives the small piston of the plunger pump to move up and down. The main control board 408 is designed with functions such as power-on self-test, high and low voltage alarm, and over-current alarm shutdown.

[0039] The bottom end of the tool head seat 202 is threadedly connected to the top end of the handle 401, and the bottom end of the piston rod 204 is disposed in the piston cup;

[0040] The remote controller 100 communicates with the remote control panel 407 .

[0041] The handle 401 is provided with a cutter bracket 401c, and one end of the cutter bracket 401c is provided with an internal thread sleeve 401d.

[0042] The gear box 405 is integrated on the motor shaft of the brushed DC motor 409 .

[0043] During the specific implementation of the utility model, when high-altitude operation is required, the electric cutter is installed on the insulating operating rod through the internal threaded sleeve 401d, and then the fixing plate 201b is installed into the mounting screw hole 201a on the shearing mechanism protective cover 201 through bolts, and then the lower end of the detector 301 is inserted into the socket 201c, so that the detector 301 of the U-shaped ammeter is installed on the shearing mechanism. When shearing, hold the insulating operating rod, lift the shearing mechanism and the detector 301 to the position of the cable to be sheared, and completely insert the cable into the opening of the two blades 206 and the U-shaped fork of the detector 301. At this time, the detector 301 will detect the load current of the cable, and the receiver 302 will receive the signal of the detector 301, and then the corresponding load current on the cable can be seen on the receiver 302. If the load current exceeds a certain value, the indicator light will light up to alarm; so that the operator can choose the operation mode according to the situation. When shearing, press the start button of the remote control 100 to start the shearing operation;

[0044] After the shearing operation is completed, the power mechanism automatically releases pressure, and then the operator retracts the insulating operating rod and removes the shearing tool, and the shearing operation is completed.

[0045] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0046] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0047] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0048] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A load current intelligent alarm electric cutter, characterized in that: include: A remote controller (100), a U-shaped ammeter, a shearing mechanism and a power mechanism, wherein the power mechanism is arranged at the lower end of the shearing mechanism, the shearing mechanism is mounted on an operating rod mechanism, the U-shaped ammeters are respectively mounted on the shearing mechanisms, and the remote controller (100) and the power mechanism cooperate; The shearing mechanism comprises a protective sleeve (201), a cutter head seat (202), a tripod (203), a piston rod (204), a spring (205) and two blades (206); the cutter head seat (202) is arranged in the protective sleeve (201); the two blades (206) are arranged on the cutter head seat (202) in a relative manner, and the protective sleeve (201), the cutter head seat (202) and the two blades (206) are connected together via a blade shaft (207); the two blades (206) are arranged around the blade shaft ( 207) opens and closes; the bottom end of each blade (206) is connected to the tripod (203) via a support rod (208); the piston rod (204) is movably arranged in the cutter head seat (202); the tripod (203) and the top end of the piston rod (204) are connected via a fastening bolt (209), and a gasket (210) is arranged between the connection between the tripod (203) and the top end of the piston rod (204); the spring (205) is sleeved on the piston rod (204); Two mounting screw holes (201a) are provided on one side of the protective sleeve (201); a fixing plate (201b) is provided on the protective sleeve (201); the fixing plate (201b) is installed on the protective sleeve (201) via bolts in the mounting screw holes (201a); and a socket (201c) is provided on the fixing plate (201b); The U-shaped ammeter comprises a detector (301) and a receiver (302); the lower end of the detector (301) is inserted into the socket (201c); the bottom of the U-shaped jaw of the detector (301) is flush with the bottoms of the two blades (206); and the receiver (302) receives a signal from the detector (301); The power mechanism comprises a handle (401), a piston cup sleeve (402), an oil bag (403), an oil pump (404), a gear box (405), a brushed DC motor (409), a battery mounting plate (406), a remote control panel (407) and a main control panel (408); the piston cup sleeve (402), the oil bag (403), the oil pump (404), the gear box (405), the brushed DC motor (409), the remote control panel (407) and the main control panel (408) are sequentially arranged in the handle (401) from top to bottom; a piston cup is arranged in the piston cup sleeve (402) so as to move up and down along the piston cup, and the piston cup is connected to the movable The plug cup sleeve (402) is sealed by an O-ring; the handle (401) is provided with a start button (401a) and a pressure relief button (401b); the battery mounting plate (406) is arranged at the bottom end of the handle (401), and a lithium battery (406a) is installed on the battery mounting plate (406), and the lithium battery (406a) supplies power to the remote control board (407), the main control board (408) and the brushed DC motor (409); the remote control board (407), the brushed DC motor (409), the start button (401a) and the pressure relief button (401b) are respectively connected to the main control board (408); The bottom end of the tool head seat (202) is threadedly connected to the top end of the handle (401), and the bottom end of the piston rod (204) is arranged in the piston cup; The remote controller (100) communicates with the remote control panel (407).

2. The load current intelligent alarm electric cutter according to claim 1, characterized in that: A cutter support (401c) is provided on the handle (401), and an internal thread sleeve (401d) is provided at one end of the cutter support (401c).

3. The electric cutter with load current intelligent alarm according to claim 1, characterized in that: A blade shaft anti-loosening bolt (211) is provided at the connection between the blade shaft (207) and the blade head seat (202); the upper end of the support rod (208) is connected to the bottom end of the corresponding blade (206) through the support rod shaft (212) and the retaining spring (213), and the lower end of the support rod (208) is connected to the tripod (203) through the support rod shaft (212) and the retaining spring (213).

4. The electric cutter with load current intelligent alarm according to claim 1, characterized in that: The gear box (405) is integrated on the motor shaft of the brushed DC motor (409).

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