CN212033629U - A kind of insulation shielding appliance for uninterrupted operation of distribution network - Google Patents

Abstract

The utility model relates to an insulating shielding appliance for uninterrupted operation of a distribution network, belonging to the field of live operation. Including two sets of side-phase insulating shielding appliances and a set of middle-phase insulating shielding appliances fixed on the cross arm of the terminal pole; each set of side-phase insulating shielding appliances is composed of side-phase support rods, side-phase telescopic rods and side-phase lead brackets; The phase insulating shielding appliance is composed of a middle-phase support rod, a middle-phase telescopic rod, a middle-phase wire bayonet device, a middle-phase steering rod and a middle-phase lead bracket. It extends a wire support platform outside the cross arm of the terminal rod. By setting the corresponding wire bayonet and wire spring bolt, the corresponding live wire is clamped in the corresponding wire bayonet to form a stable fixed state. It can effectively fix the removed upper lead wire on the insulating member, and convert the original two-person operation into a single-person independent operation, which can effectively ensure the safe and long distance between the operator and the live body, and improve the work of live work. Efficiency and safety.

Description

A kind of insulation shielding appliance for uninterrupted operation of distribution network

technical field

The utility model belongs to the technical field of live work, in particular to an insulating shielding appliance for non-power off work.

Background technique

In the 10kV overhead distribution lines in Shanghai, there are a large number of drop-out fuse devices on the pole, and conventional drop-out fuses are installed on the same side of the overhead line. Perform drop-out fuse replacement work.

When performing conventional drop-out fuse replacement operations, it is necessary to insulate the drop-out fuse and the cross arm to prevent the occurrence of grounding or phase-to-phase short circuit. On the corresponding wire above, wait until the three-phase drop-out fuses are separated from the live line above, and then replace the fuse.

In the existing drop fuse devices, the installation method of the terminal rod is very different from that of the linear rod. The terminal rod drop fuse is installed in the opposite direction of the pole, which is opposite to the direction of the overhead conductor.

When the terminal pole drop fuse is replaced, since the direction of the drop fuse is opposite to the direction of the live wire, the operator cannot bypass the pole to fix the live upper lead wire on the live main wire by operating the insulated arm truck. The difficulty of the operation is increased, and two people are required to work. One person uses an insulating operating rod to support and fix the live upper lead wire, and the other person performs the drop-type fuse replacement work.

At this time, the upper lead wire of the fuse adopts the artificial fixing mode, which makes the operation more difficult and dangerous, and the operation efficiency is greatly reduced. The risk of short-circuit between adjacent live conductors and the safety of operators cannot be guaranteed.

How to solve the artificial fixing mode of the upper end lead of the fuse when the terminal rod drop fuse is replaced, transform the original two-person operation into a single-person independent operation, and reduce the risk factors in the operation, which is an urgent problem to be solved in practical work.

Utility model content

The technical problem to be solved by the utility model is to provide an insulating shielding appliance for uninterrupted operation of the distribution network. It uses the insulating platform extended by the insulating shielding appliance to effectively fix the upper lead wire removed when the terminal rod drop-out fuse is replaced on the insulating member, which ensures the safe distance between the operator and the live equipment. The operation has been transformed into a single-person independent operation, which reduces the risk factors in the operation and improves the operation efficiency and safety.

The technical scheme of the utility model is to provide an insulating and shielding appliance for uninterrupted operation of a distribution network, which is characterized by:

The said insulating shielding appliance for uninterrupted operation of the distribution network includes two sets of side-phase insulating shielding appliances and a set of middle-phase insulating shielding appliances fixed on the cross arm of the terminal pole;

Wherein, each group of side-phase insulating shielding appliances is composed of side-phase support rods, side-phase telescopic rods and side-phase lead brackets;

The side-phase telescopic rod is fixed in the side-phase support rod;

A side-phase wire bayonet device is arranged at the end of the side-phase telescopic rod, and the side-phase wire bayonet device is provided with a first side-phase wire bayonet and a side-phase wire spring bolt;

The middle-phase insulating shielding appliance is composed of a middle-phase support rod, a middle-phase telescopic rod, a middle-phase wire bayonet device, a middle-phase steering rod and a middle-phase lead bracket;

The mid-phase telescopic rod is fixed in the mid-phase support rod;

The lower end of the middle-phase steering rod is fixed on the end of the middle-phase telescopic rod, and the middle-phase lead bracket is fixed on the upper end of the middle-phase steering rod through the phase lead bracket fixing pin.

Specifically, the side-phase telescopic rod is telescopically fixed in the side-phase support rod through the telescopic rod positioning pin; the side-phase lead bracket is rotatably fixed on the root of the side-phase support rod, and is provided at the end of the side-phase lead bracket There is a second side phase conductor bayonet.

Specifically, the middle-phase telescopic rod is telescopically fixed in the middle-phase support rod through a telescopic rod positioning pin; the middle-phase wire bayonet device is provided with a middle-phase wire bayonet and a middle-phase wire spring bolt.

Further, the insulating shielding appliance utilizes the principle of uplifting support, and a wire support platform is extended outside the cross arm of the terminal rod.

Further, the side-phase wire bayonet device and the middle-phase wire bayonet device are provided with corresponding wire bayonet and wire spring bolt, and the live wire of the phase is clamped in the corresponding wire bayonet. , forming a stable fixed state to prevent the random swing of the live wire.

Further, the live wire clamping device is fixed on the cross arm of the terminal rod by means of fixing pins, buckles or fasteners.

Compared with the prior art, the advantages of the present utility model are:

1. Using the insulating shielding device, the removed upper lead wire can be effectively fixed on the insulating member, the original two-person operation can be transformed into a single-person independent operation, the risk factors in the operation are reduced, and the operation efficiency is improved. and safety;

2. The above-mentioned insulating shielding appliance utilizes the principle of uplift support, which is equivalent to extending a wire support platform outside the cross arm of the terminal pole, which ensures the safety of the operator and the upper charged body while ensuring sufficient insulation performance. distance;

3. The insulating shielding device is made into a retractable linkage structure, and the insulating shielding device of the three-phase live wire is different in form. The two side phases are made into a fixed mode under the wire according to the device form, and the middle phase between them is on the wire. The flip mode can effectively ensure the safe and long distance between the operator and the live object, and fully consider the convenience of operation, which is more in line with the habit of split-phase live work.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the insulating shielding appliance of the present utility model;

Fig. 2 is the structural representation of the side-phase insulating shielding appliance of the present invention;

3 is a schematic structural diagram of a phase insulating shielding appliance in the present invention.

In the figure, 1 is the terminal rod, 2 is the cross arm, 3 is the side-phase insulating shielding appliance, 3-1 is the side-phase support rod, 3-2 is the side-phase telescopic rod, 3-3 is the side-phase wire bayonet device, 3 -4 is the first side-phase wire bayonet, 3-5 is the side-phase wire spring bolt, 3-6 is the telescopic rod positioning pin, 3-7 is the telescopic rod positioning hole, 3-8 is the side-phase lead bracket, 3 -9 is the second side-phase wire bayonet, 4 is the middle-phase insulating shielding appliance, 4-1 is the middle-phase support rod, 4-2 is the middle-phase telescopic rod, 4-3 is the middle-phase wire bayonet device, 4- 4 is the middle-phase wire bayonet, 4-5 is the middle-phase wire spring bolt, 4-6 is the telescopic rod positioning pin, 4-7 is the middle-phase steering rod, 4-8 is the middle-phase lead bracket, and 4-9 is the middle-phase lead bracket. The middle phase lead bracket fixing pin, 5 is an insulating porcelain bottle.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings.

Since the installation method of the terminal rod drop fuse is different from that of the linear rod, the existing insulating cover of the drop fuse cannot be applied to the terminal rod, and there is currently a lack of corresponding insulating shielding appliances on the market. Usually, two-person operation is required to replace this type of drop-type fuse. The isolation method between the charged body and the ground potential is unstable and reliable. If the operator makes a mistake, there is a great danger.

In FIG. 1 , the insulating shielding appliance for uninterrupted operation of the distribution network in the technical solution of the present invention includes two sets of side-phase insulating shielding appliances and a set of middle-phase insulating shielding appliances fixed on the cross arm 2 of the terminal pole 1 .

In Figure 2, each group of side-phase insulating shielding appliances is composed of side-phase support rods 3-1, side-phase telescopic rods 3-2 and side-phase lead brackets 3-8; side-phase wires are provided at the ends of the side-phase telescopic rods The bayonet device 3-3, the side-phase wire bayonet device is provided with a first side-phase wire bayonet and a side-phase wire spring bolt 3-5, and the side-phase telescopic rod is flexibly fixed by the telescopic rod positioning pin 3-6 In the side-phase support rod; the side-phase lead support 3-8 is rotatably fixed on the root of the side-phase support rod, and a second side-phase wire bayonet 3-9 is provided at the end of the side-phase lead support.

In actual use, the end of the live wire is fixed in the first side-phase wire bayonet in the side-phase wire bayonet device. The side-phase lead bracket of the phase and the side-phase support rod are in an open state; the side-phase lead bracket of the right phase and the side-phase support rod are in a closed state). (See Figure 2) The live wire is fully supported and fixed to form a stable fixed relationship to avoid random floating of the live wire, so as to ensure a safe distance between the live wire and the live operator.

In Fig. 3, the middle-phase insulating shielding appliance is composed of a middle-phase support rod 4-1, a middle-phase telescopic rod 4-2, a middle-phase wire bayonet device 4-3, a middle-phase steering rod 4-7, and a middle-phase lead bracket 4- 8 composition.

The middle-phase telescopic rod is telescopically fixed in the middle-phase support rod through the telescopic rod positioning pins 4-6, the lower end of the middle-phase steering rod is fixed at the end of the middle-phase telescopic rod, and the middle-phase lead bracket is fixed by the phase lead bracket fixing pin 4 -9 is fixed to the upper end of the mid-phase steering rod.

The middle-phase wire bayonet device is provided with a middle-phase wire bayonet 4-4 and a middle-phase wire spring bolt 4-5.

In this technical solution, the middle-phase insulating shielding device of the insulating shielding device is lifted up by 75°, and a wire bayonet device is arranged at the opening, which can fix the middle-phase upper end of the drop-type fuse on the insulating porcelain bottle 5 shown in FIG. 1 . The end of the lead is firmly fixed on the support insulation device to ensure a safe distance for the operator.

By using the above-mentioned insulating shielding device, the removed upper lead wire can be effectively fixed on the insulating member, and the original two-person operation can be transformed into a single-person independent operation, which reduces the risk factors in the operation and improves the operation efficiency and safety.

The insulating shielding appliance of the utility model utilizes the principle of uplift support, which is equivalent to extending a wire support platform outside the cross arm of the terminal pole, which ensures sufficient insulation performance and at the same time ensures the safety between the operator and the upper charged body. Safe distance, and taking into account the diversity of the on-site operating environment and the length of the upper lead, the insulating shielding device is made into a retractable linkage type, and the insulating shielding device of the three-phase live wire is different in form, and the two sides are based on The device form is made into a fixed mode under the wire, and the middle phase in between is the wire up mode, which can effectively ensure the safe and long distance between the operator and the live body, and fully consider the problem of operation convenience, which is more in line with the classification. The habit of working with live electricity.

The side-phase wire bayonet device and the middle-phase wire bayonet device in the above technical solutions, by setting the corresponding wire bayonet and wire spring bolt, the live wire of the phase is clamped in the corresponding wire bayonet, forming A stable fixed state that prevents random swinging of live conductors.

The technical scheme adopts a telescopic structure and a positioning pin structure, so that each telescopic rod can be telescopically fixed on the middle phase support rod, and retracted when not in use, reducing the overall length and facilitating handling and storage; when in use, the telescopic rod positioning pin, The corresponding adjustment of the positioning hole of the telescopic rod can arbitrarily adjust the extension length of the telescopic rod to suit the length of live wires of different lines.

When there are problems such as loosening and damage of the terminal rod top-drop fuse, the insulating shielding appliance in the technical solution of the present utility model can be used to assist the operation, thereby improving the safety and work efficiency of the operators.

The technical scheme of the utility model is suitable for insulating and shielding work in the replacement operation of the terminal rod drop-type fuse. The insulating platform extended by the insulating shielding appliance can be used to firmly fix the live wire, so as to ensure the connection between the operator and the live equipment. The safety distance between the two switches has changed the previous situation where two people must cooperate with each other to be operated by one person, thereby effectively avoiding various unstable factors caused by the increase of operators during the operation, and greatly reducing the direct contact of the operators with live objects. The number of times, thus effectively improving the safety and efficiency of live work, and ensuring the continuous and reliable operation of the power grid.

The utility model can be widely used in the field of replacement and maintenance of the terminal rod drop type fuse.

Claims (6)

1. An insulating shielding appliance for uninterrupted operation of a distribution network, characterized in that: The said insulating shielding appliance for uninterrupted operation of the distribution network includes two sets of side-phase insulating shielding appliances and a set of middle-phase insulating shielding appliances fixed on the cross arm of the terminal pole; Wherein, each group of side-phase insulating shielding appliances is composed of side-phase support rods, side-phase telescopic rods and side-phase lead brackets; The side-phase telescopic rod is fixed in the side-phase support rod; A side-phase wire bayonet device is arranged at the end of the side-phase telescopic rod, and the side-phase wire bayonet device is provided with a first side-phase wire bayonet and a side-phase wire spring bolt; The middle-phase insulating shielding appliance is composed of a middle-phase support rod, a middle-phase telescopic rod, a middle-phase wire bayonet device, a middle-phase steering rod and a middle-phase lead bracket; The mid-phase telescopic rod is fixed in the mid-phase support rod; The lower end of the middle-phase steering rod is fixed on the end of the middle-phase telescopic rod, and the middle-phase lead bracket is fixed on the upper end of the middle-phase steering rod through the phase lead bracket fixing pin. 2. The insulating shielding appliance for uninterrupted operation of distribution network according to claim 1, characterized in that the side-phase telescopic rod is telescopically fixed in the side-phase support rod through the telescopic rod positioning pin; the side-phase lead bracket is rotatable It is fixed on the root of the side-phase support rod, and the end of the side-phase lead bracket is provided with a second side-phase wire bayonet. 3. The insulating shielding appliance for uninterrupted operation of distribution network according to claim 1, characterized in that the middle-phase telescopic rod is telescopically fixed in the middle-phase support rod through the telescopic rod positioning pin; the middle-phase wire bayonet device A middle-phase wire bayonet and a middle-phase wire spring bolt are arranged on it. 4. The insulating shielding appliance for uninterrupted operation of the distribution network according to claim 1, characterized in that the insulating shielding appliance utilizes the principle of uplifting support, and a wire support platform is extended outside the cross arm of the terminal rod. 5. The insulating shielding appliance for uninterrupted operation of the distribution network according to claim 1, characterized in that the side-phase wire bayonet device and the middle-phase wire bayonet device are provided with corresponding wire bayonet and wire spring bolts. , the live wire of the phase is clamped in the corresponding wire bayonet to form a stable fixed state to prevent the live wire from swinging at will. 6. The insulating shielding appliance for uninterrupted operation of distribution network according to claim 1, characterized in that said side-phase conductor bayonet device or middle-phase conductor bayonet device is fastened by fixing pins, buckles or fasteners fixed on the cross arm of the terminal rod.

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