CN205141520U - Split pin remounting specialized tool - Google Patents

Abstract

<b>The utility model relates to the technical field of cotter pin replacement tools, and is a special tool for cotter pin replacement, which includes an insulating operating rod, a steering joint, an extension rod and a clamping device; the lower end of the steering joint is fixed on the insulating operating rod The upper end of the steering joint is hinged with one end of the extension rod; the clamping device includes a bottom plate, a guide boss and a positioning shaft; The guide boss is fixed with a positioning shaft on the bottom plate inside the guide boss. The utility model has a reasonable and compact structure and is easy to use. It reliably fixes the R-shaped cotter pin through the clamping device, and realizes the adjustment of any angle through the steering joint. Installing work and ensuring the personal safety of operators, reducing the consumption of manpower and material resources, increasing work efficiency, and avoiding economic losses caused by power outages. </b>

Description

Cotter pin replacement special tool

technical field

The utility model relates to the technical field of cotter pin repairing tools, which is a special tool for cotter pin repairing.

Background technique

Cotter pins can prevent bolts from falling off and are widely used on power transmission lines. However, affected by factors such as the natural environment, during the long-term operation of the transmission line, the cotter pin of the wire suspension clamp is often missing. The lack of the cotter pin may cause the bolt to fall off, which will bring hidden dangers to the safe operation of the transmission line, and requires transmission operation and maintenance. The management department should detect and repair early in the daily inspection and maintenance process to ensure the safe operation of the transmission line; at present, when the power system is repairing and repairing the cotter pin of the wire suspension clamp, it generally adopts the live work equipotential operation method, or power outage maintenance work. Adopting the equipotential maintenance operation method of live work, it takes an average of 34 minutes for the power transmission live work team to repair the gap pin of the suspension line of the conductor, and requires 5 operators: 1 person in charge, 1 equipotential operator, ground There is 1 potential operator and 2 ground operators, which consumes a lot of manpower and material resources, and the efficiency is not high; it takes a long time to deal with the power outage maintenance operation, consumes a lot of manpower and material resources, and causes economic losses due to power loss.

Contents of the invention

The utility model provides a special tool for reinstalling cotter pins, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problems of large consumption of manpower and material resources, power loss and economic loss.

The technical solution of the utility model is achieved through the following measures: a special tool for cotter pin replacement, including an insulating operating rod, a steering joint, an extension rod and a clamping device; the lower end of the steering joint is fixed on the upper end of the insulating operating rod, The upper end of the steering joint is hinged with one end of the extension rod; the clamping device includes a bottom plate, a guide boss and a positioning shaft; the bottom plate is fixed on the other end of the extension rod, and the bottom plate is provided with a ring-shaped guide boss with an opening , a positioning shaft is fixed on the bottom plate inside the guiding boss, and the positioning shaft and the guiding boss are located on the same side of the bottom plate.

Below is the further optimization or/and improvement to above-mentioned utility model technical scheme:

Both ends of the above-mentioned guide boss can be provided with extensions toward the center of the outer side of the opening, and the two extensions do not intersect.

The opening of the guide boss can be located on the extension line of the extension rod and on the side away from the extension rod.

The lower end of the above-mentioned steering joint can be fixedly installed together with the upper end of the insulating operating rod through threads.

The above-mentioned steering joint may include a cylindrical joint, a clamping plate, bolts and nuts; the lower end of the cylindrical joint is fixed on the upper end of the insulating operating rod through threads, and two clamping plates arranged at intervals are fixed on the upper end of the cylindrical joint. The upper parts of the clamping plates are provided with through holes, the nuts are fixedly installed together with the bolts passing through the two through holes, and the extension rods are hinged in the two clamping plates through the bolts.

The utility model has a reasonable and compact structure and is easy to use. It reliably fixes the R-shaped cotter pin through the clamping device, and realizes the adjustment of any angle through the steering joint. Installing work and ensuring the personal safety of operators, reducing the consumption of manpower and material resources, increasing work efficiency, and avoiding economic losses caused by power outages.

Description of drawings

Fig. 1 is a schematic diagram of the front view of the preferred embodiment of the utility model.

Fig. 2 is a schematic diagram of the cross-sectional structure of the holding device in Fig. 1 along the direction of A-A.

Fig. 3 is a right view sectional structural schematic diagram of the steering joint in Fig. 1 .

Fig. 4 is a schematic diagram of the working state of the clamping device in Fig. 1 .

The codes in the drawings are: 1 is the insulating operating rod, 2 is the extension rod, 3 is the bottom plate, 4 is the guide boss, 5 is the positioning shaft, 6 is the extension section, 7 is the cylindrical joint, 8 is the clamping plate, 9 is a bolt, 10 is a nut, 11 is a curved section, and 12 is a straight leg and a curved leg.

detailed description

The utility model is not limited by the following examples, and the specific implementation manner can be determined according to the technical scheme of the utility model and actual conditions.

In this utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout method of the accompanying drawing 1 of the specification, such as: the positional relationship of upper, lower, left, right, etc. is based on the specification It is determined by the layout direction of the attached drawing.

Below in conjunction with embodiment and accompanying drawing, the utility model is further described:

As shown in accompanying drawings 1, 2, and 4, the special tool for reinstalling cotter pins includes an insulating operating rod 1, a steering joint, an extension rod 2 and a clamping device; the lower end of the steering joint is fixed on the upper end of the insulating operating rod 1, and the steering joint The upper end of the extension rod 2 is hinged together; the clamping device includes a base plate 3, a guide boss 4 and a positioning shaft 5; the base plate 3 is fixed on the other end of the extension rod 2, and the base plate 3 is provided with a ring shape and The opening guide boss 4 is fixed with a positioning shaft 5 on the bottom plate 3 inside the guide boss 4 , and the positioning shaft 5 and the guide boss 4 are located on the same side of the bottom plate 3 .

Reliably fix the R-shaped cotter pin through the clamping device; through the hinged cooperation between the extension rod 2 and the steering joint, it can be adjusted at any angle, and the cotter pin that is missing in any orientation can be replenished; through the hand-held insulating operating rod 1, the operator can meet the needs of the operator in the tower. The live work can be carried out on the ground potential to refit the cotter pin of the wire suspension line clamp, and to ensure personal safety; in this way, the average time for reinstalling the cotter pin is about 15 minutes, the maintenance time is greatly shortened, and only one refitting person, One person in charge and one ground coordinator can complete the reinstallation work; shorten the maintenance time, improve the maintenance efficiency, avoid power outage maintenance, improve the reliability of transmission line operation, avoid economic losses, expand the types of live work, It can promote live work on transmission lines. During the production process, the length of the extension rod 2 is not easy to be too long, so that the extension rod 2 enters the electric field horizontally or vertically upward during the working process, and the protection gap in the maintenance process can be maximized. The R-type cotter pin is an existing known public technology. After it is put into the tail hole of the wire suspension clamp bolt, it will be automatically locked to prevent falling off; as shown in Figure 4, the R-type cotter pin includes a curved section 11, straight legs and curved The legs 12 are installed; the curved section 11 is set on the positioning shaft 5, snapped into the ring groove formed between the guide boss 4 and the positioning shaft 5, and is against the bottom plate 3; the straight leg and the curved leg 12 pass through the opening on the guide boss 4 Stretch out, so that the R-shaped cotter pin can be stably and reliably fixed on the clamping device; The side of the axial direction and pointing to the bottom plate 3 bears force, and the utility model can be separated from the R-shaped cotter pin; the operation process is simple and fast, the maintenance time is shortened, and the maintenance efficiency is improved.

According to actual needs, the above-mentioned special tool for cotter pin replacement can be further optimized or/and improved:

As shown in Figures 1, 2, and 4, both ends of the guide boss 4 are provided with extensions 6 facing the center of the outer side of the opening, and the two extensions 6 do not intersect. Like this, the straight leg and the curved leg 12 that block the R-type cotter pin are matched by the extension section 6 are packed to ensure that the fixing of the R-type cotter pin is reliable and firm, which is convenient for operators to carry out reassembly work and improve work efficiency.

As shown in accompanying drawings 1 , 2 , and 4 , the opening of the guide boss 4 is located on the extension line of the extension rod 2 and on the side away from the extension rod 2 . In this way, when the operator is positioned on the pole tower and holds the insulation operating rod 1 to carry out long-distance repairing work, it is convenient to accurately grasp the direction of the applied force, so as to reduce the labor intensity.

As shown in accompanying drawings 1 and 3, the lower end of the steering joint and the upper end of the insulating operating rod 1 are fixedly installed together by threads. In this way, clamping devices of different sizes can be replaced according to different types of R-shaped cotter pins, and the insulating operating rod 1 does not need to be replaced, which is more convenient for operators to carry.

As shown in accompanying drawings 1 and 3, the steering joint includes a cylindrical joint 7, a clamping plate 8, a bolt 9 and a nut 10; Two clamping plates 8 arranged at intervals are fixed, the upper parts of the two clamping plates 8 are provided with through holes, the nuts 10 are fixedly installed together with the bolts 9 passing through the two through holes, and the extension rod 2 passes through the bolts 9 Hinged in two clamping plates 8 . In this way, after the R-shaped cotter pin is fixed on the clamping device, loosen the nut 10, adjust the angle between the extension rod 2 and the insulating operating rod 1 to facilitate the operator to apply force and reinstall the R-shaped cotter pin; tighten the nut 10, fix the The relative position of the extension rod 2 and the insulating operating rod 1 can reduce the labor intensity of the operators.

The above technical features constitute the best embodiment of the utility model, which has strong adaptability and best implementation effect, and non-essential technical features can be increased or decreased according to actual needs to meet the needs of different situations.

Claims (9)

1. A special tool for cotter pin replacement, characterized in that it includes an insulating operating rod, a steering joint, an extension rod and a clamping device; the lower end of the steering joint is fixed on the upper end of the insulating operating rod, and the upper end of the steering joint is connected to one end of the extension rod Hinged together; the clamping device includes a bottom plate, a guide boss and a positioning shaft; the bottom plate is fixed on the other end of the extension rod, and the bottom plate is provided with a ring-shaped guide boss with an opening, and the bottom plate inside the guide boss A positioning shaft is fixed, and the positioning shaft and the guide boss are located on the same side of the base plate. 2. The special tool for reinstalling cotter pins according to claim 1, characterized in that both ends of the guide boss are provided with extensions toward the center of the outer side of the opening, and the two extensions do not intersect. 3. The special tool for reinstalling cotter pins according to claim 1 or 2, characterized in that the opening of the guide boss is located on the extension line of the extension rod and on the side away from the extension rod. 4. The special tool for reinstalling cotter pins according to claim 1 or 2, characterized in that the lower end of the steering joint and the upper end of the insulating operating rod are screwed together. 5. The special tool for reinstalling cotter pins according to claim 3, characterized in that the lower end of the steering joint and the upper end of the insulating operating rod are fixedly mounted together by threads. 6. The special tool for refitting cotter pins according to claim 1 or 2, characterized in that the steering joint includes a cylindrical joint, a clamping plate, bolts and nuts; the lower end of the cylindrical joint is fixed on the upper end of the insulating operating rod through threads, and the cylindrical joint Two clamping plates arranged at intervals are fixed on the upper end surface of the joint. Through holes are arranged on the upper parts of the two clamping plates. The nuts are fixed and installed together with the bolts passing through the two through holes, and the extension rod is hinged by the bolts. within the two clamping plates. 7. The special tool for refitting cotter pins according to claim 3, wherein the steering joint includes a cylindrical joint, a clamping plate, bolts and nuts; the lower end of the cylindrical joint is fixedly installed on the upper end of the insulating operating rod through threads, and the Two clamping plates arranged at intervals are fixed on the upper end surface, and the upper parts of the two clamping plates are provided with through holes. inside a clamping plate. 8. The special tool for refitting cotter pins according to claim 4, wherein the steering joint includes a cylindrical joint, a clamping plate, bolts and nuts; the lower end of the cylindrical joint is fixedly installed on the upper end of the insulating operating rod through threads, and the cylindrical joint Two clamping plates arranged at intervals are fixed on the upper end surface, and the upper parts of the two clamping plates are provided with through holes. inside a clamping plate. 9. The special tool for refitting cotter pins according to claim 5, characterized in that the steering joint includes a cylindrical joint, a clamping plate, bolts and nuts; the lower end of the cylindrical joint is fixedly installed on the upper end of the insulating operating rod through threads, and the cylindrical joint Two clamping plates arranged at intervals are fixed on the upper end surface, and the upper parts of the two clamping plates are provided with through holes. inside a clamping plate.