CN207149983U - A kind of fuse dismantling device - Google Patents

Abstract

The utility model relates to a tool for disassembling and assembling a fuse, which provides a tool for disassembling and assembling a fuse. By means of the tool, a fuse is inserted into a fuse mounting seat, wherein the fuse is placed on two movable arms, and the movable arm is provided with a grab Grab the fuse by hand, the fuse is sleeved on the operating arm, and its inner cavity is connected, and the effects exerted by the two operating arms on both ends of the fuse can be balanced to prevent damage to the fuse caused by an external force imposed on the other end after one end is stuck. Shrinking or pulling out the movable arm is beneficial to reduce the size of the equipment. The handle on the operating arm is hinged on the operating arm, which can automatically adjust the direction of action according to the different positions or angles of the fuse holder to improve the disassembly efficiency. One end of the operating rod is provided with a Crank structure crank, locking device to control the extension length and angle of the crank, you can use the catch on the crank to grab the edge of the distribution cabinet or other positions, and apply force to the operating arm, which is convenient for some connections that are firm or rusty. Install and remove dead fuses.

Description

A tool for removing and installing a fuse

technical field

The utility model belongs to the field of power distribution tools, in particular to a tool for disassembling and assembling fuses.

Background technique

A fuse is a safety protection element in the power grid, usually a tubular structure, used to connect two cables, when the current between the cables exceeds the limit value, the fuse inside the fuse will be destroyed to block the current, and then Prevent excessive current caused by short circuit, etc. In the current power distribution room or power distribution cabinet, multiple fuses are usually installed on different lines for protection. Usually, when performing replacement and maintenance operations, it is necessary to remove the fuses from the equipment to check or replace them. The operator needs to carry out a series of work such as circuit inspection, power off the line to be disassembled, and check the power outage situation. A lot of time is wasted. In the actual power distribution process, most of the time for a fuse replacement is spent on the preparation and inspection before and after the replacement. This situation greatly limits the efficiency of the fuse replacement work. A fuse live operation solution can effectively solve the above problems, but because there is high voltage or strong current at the front and rear ends of the fuse working area, the risk is high, and without a perfect solution, it is impossible to directly perform operations such as live replacement.

Contents of the invention

Based on the above situation, the purpose of this utility model is to provide a tool for disassembling and assembling a fuse, which can assist an operator to disassemble and assemble a fuse under electrified conditions, and has a simple structure and is easy to operate.

In order to achieve the above object, the utility model adopts the following technical solutions.

A tool for removing and assembling a fuse, comprising an operating rod, two hollow operating arms mounted on the operating rod, two movable arms sheathed on the operating arms, a gripper hinged with the movable arms, and two The crank arm at the end and the insulating handle, the operating rod is hollow, the hollow area of the operating arm communicates with the hollow area of the operating rod to form an integrated inner cavity, and the movable arm is sleeved on the two operating arms to seal both sides of the inner cavity. The crank arm is hinged to the operating rod, and the crank arm is a crank mechanism. The hinged position of the crank mechanism is provided with a locking device, and the free end of the crank mechanism is provided with a catch.

The utility model provides a tool for disassembling and assembling a fuse, which can be used to insert a fuse into a fuse mounting seat under a charged state, wherein the fuse is placed on two movable arms, and the movable arm is provided with a gripper for grasping Take the fuse, and the fuse is sleeved on the operating arm. Since the inner cavity is connected, when the operating lever is pressed down, the effects exerted by the two operating arms on both ends of the fuse can be balanced to prevent one end from being stuck and the other end stuck. The fuse is damaged by imposing external force. At the same time, the movable arm can be retracted or pulled out by charging and discharging gas, which is beneficial to reduce the size of the equipment. Adjust the direction of action to improve the efficiency of disassembly and assembly. There is a crank mechanism at one end of the operating rod, and a locking device is provided on the crank mechanism, which can control the extension length and angle of the crank. Combined with other structures such as power distribution cabinets, the grip on the crank can be used The buckle grabs the edge or other positions of the power distribution cabinet, and uses the lever principle to apply force to the operating arm, which is convenient for installing and disassembling some fuses that are firmly connected or rusted and stuck.

Further, the operating arm is installed perpendicular to the operating rod, and the movable arm is sleeved on the inner side of the operating arm, which facilitates the design of the support of the overall structure and improves the structural stability.

Further, the movable arm protrudes into the hollow area of one end of the operating arm, and the hollow area communicates with the integrated inner cavity. By setting a connected wall structure, the thrust direction of the movable arm is optimized and the structural stability is improved. , while reducing equipment quality, improving practicability and reducing costs.

Further, the crank mechanism includes two connecting rods, and the two crank rods are hinged through a bolt and nut group, and the crank is hinged at one end of the operating rod through the bolt and nut group, and the crank can be conveniently adjusted through the bolt and nut group. control, and the structure is simple and the cost is low.

Furthermore, the insulating handle is provided with a current and voltage detection device, and the current and voltage detection device is provided for further confirmation of the voltage status of the front and rear terminals during live operation, so as to improve safety.

Further, the insulated handle is sleeved in the operating rod so that it can be inserted into the inner cavity of the operating rod. Using the existing cavity, it is set as a retractable structure, which can further control the volume and cost of the equipment and improve the adaptability of the equipment. .

Description of drawings

Fig. 1 is a structural schematic diagram of a fuse dismounting tool of the present invention;

Figure 2 is a structural schematic diagram of the operating rod of a fuse dismounting tool of the present invention

Wherein the reference signs include:

Operating rod 1, opening 11; operating arm 2; movable arm 3; crank 4, catch 41, locking device 42;

Handle 5; Insulated handle 6; Fuse 7; Portable hole 8.

Detailed ways

Below in conjunction with specific embodiment the utility model is described in detail.

As shown in Figure 1, a fuse dismounting tool of the present utility model includes an operating rod 1, which is hollow, and two cylindrical operating arms are arranged on the operating rod 1 perpendicular to the diameter direction of the operating rod 1 2. The operating rod 1 has an opening 11 at the installation position of the operating arm 2. The opening 11 communicates with the inner cavity of the operating arm 2. A movable arm 3 is set in the inner cavity of the operating arm 2. The movable arm 3 is a closed cylindrical structure. , the unclosed end of the movable arm 3 is inserted into the inner cavity of the operating arm 2, so the operating rod 1, the operating arm 2 and the movable arm 3 form a closed inner cavity system, and the air pressure in the space is evenly distributed, so the inner cavity gas acts on the two movable arms The pressures on 3 are respectively equal. When the operating rod 1 is pressed toward the direction of the operating arm 2, the air is compressed and exerts force on the movable arm 3. Since the inner cavity is connected, the movable arm 3 will automatically expand and contract according to the magnitude of the force. The two movable arms 3 are mutually moved and adjusted, so that the fuse 7 is evenly stressed and prevented from being damaged, while saving energy and improving disassembly efficiency.

Simultaneously, because in actual use, fuse 7 can be installed with different angles or directions according to need, in order to improve tool adaptability, hinged gripper 5 is set on movable arm 3, and gripper 5 grasps fuse 7, because two They are hinged between the fuses, so when disassembling, they can be adjusted and set according to the installation direction and angle of the fuse 7, so as to improve the efficiency of disassembling.

Wherein, one end of the operating rod 1 is hinged with a crank 4, and the crank 4 includes two connecting rods with one end hinged, wherein the other end of one connecting rod is hinged on the operating rod 1, and the other end of the other connecting rod is provided with a catch 41, two A locking device is provided at the hinge of the connecting rod, and the locking device is used to lock the angle of the connecting rod. Preferably, the locking device is composed of a bolt and nut group, and a locking device is also provided at the hinge of the crank 4 and the operating rod 1. The device is preferably realized using a bolt and nut set.

Wherein the other end of the operating rod 1 is connected with an insulating handle 6, the insulating handle 6 can be integrally manufactured with the operating rod 1, preferably, the insulating handle 6 is designed as a telescopic structure that can be inserted into the inner cavity of the operating rod 1, so as to facilitate Reduce tool size and facilitate handling.

In actual use, a voltage and current detection device is also provided between the insulating handle and the operating rod 1 to detect the status of the equipment in real time during live operation.

Wherein, a portable hole 8 is also provided on the operating rod 1, so as to be carried by threading or hanging for storage.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (6)

1. a kind of fuse dismantling device, it is characterised in that including action bars, two motion arms for being installed on action bars, be arranged Two lever arms in motion arm, the handgrip being hinged with lever arm, and be respectively arranged on action bars both ends crank arm and the hand that insulate Handle, the action bars and motion arm are hollow, the motion arm hollow region connected with action bars hollow region to be formed it is integral interior Chamber, the lever arm are sheathed on two motion arms to seal the two of the inner chamber ports, and described crank arm is articulated with action bars, bent Arm is crank mechanism, and locking device is provided with the articulated position of the crank mechanism, and the free end of the crank mechanism, which is provided with, grabs Button.

2. a kind of fuse dismantling device according to claim 1, it is characterised in that the motion arm is pacified perpendicular to action bars Dress, the lever arm are sheathed on the inside of motion arm.

3. a kind of fuse dismantling device according to claim 2, it is characterised in that the lever arm stretches into the portion of motion arm It is point hollow, and the hollow region connects with the hollow cavity.

4. a kind of fuse dismantling device according to claim 1, it is characterised in that the crank mechanism includes two companies Bar, it is hinged by bolt and nut group between described two connecting rods, the crank mechanism is hinged on action bars by bolt and nut group One end.

5. a kind of fuse dismantling device according to claim 1, it is characterised in that the insulated handle is provided with electric current electricity Press detection means.

6. a kind of fuse dismantling device according to claim 1, it is characterised in that the insulated handle is sheathed on action bars It is interior, so that it can be inserted into operating rod cavity.