CN207706776U - A kind of flexible averruncator of insulated type - Google Patents

Abstract

The utility model provides an insulating type telescopic high-branch shears, comprising: a fixed knife frame, a fixed blade is arranged on the top, and a first pulley is arranged below the fixed knife frame; a movable knife frame, a movable blade is fixed at the front end; The rear end of the movable knife rest is provided with a second pulley; the two ends of the spring are respectively fixed on the top of the fixed knife rest and the rear end of the movable knife rest; a plurality of insulating rods can be connected in sequence; The connecting head of the insulating rod on the top is connected with the mounting hole; the wire rope, one end of which is fixed on the rear end of the movable knife rest, and the wire rope is wound around the first pulley and the second pulley in turn; the bobbin is rotatable The lower part of the insulating rod is arranged at the lowermost end, and the other end of the wire rope is fixed on the bobbin; the worm wheel is coaxially fixedly connected with the bobbin; the two ends of the worm are rotatably supported on the lowermost The lower part of the insulating rod, the worm meshes with the worm wheel.

Description

An insulated telescopic high branch shear

technical field

The utility model belongs to the technical field of electric channel pruning tools, in particular to an insulating type telescopic high-branch shears.

Background technique

In recent years, the phenomenon of tall plants near overhead power lines endangering the safe operation of power lines has become increasingly serious, often leading to frequent power line trips and power outages, seriously affecting the safe production of enterprises and the normal life of residents. Especially for relatively high branches, when pruning, a climbing arm engineering vehicle is required to cooperate with the operation, and this type of engineering vehicle is often restricted by factors such as the site terrain, and the scope of operation is limited. These operating methods are labor intensive, inefficient, and have certain risks. In order to change this backward production method, it is necessary to design a telescopic insulating high-branch shear to effectively improve the efficiency and quality of daily maintenance work of the power grid.

Utility model content

The purpose of the utility model is to solve the defect that the existing cord-drawing high-branch shears needs to be pulled continuously and is easy to get out of hand, and provides an insulating type telescopic high-branch shears.

The technical scheme provided by the utility model is:

An insulated type telescopic high branch shears, comprising:

The fixed knife rest is provided with a fixed blade at the top, a first pulley is arranged under the fixed knife rest, and a mounting hole is arranged at the bottom of the fixed knife rest;

A movable knife rest, the middle of which is hinged on the fixed knife rest, the front end of the movable knife rest is fixed with a movable blade; the rear end of the movable knife rest is provided with a second pulley;

A spring whose two ends are respectively fixed on the top of the fixed knife rest and the rear end of the movable knife rest;

A plurality of insulating rods, the top of the insulating rod is provided with a connecting head, and the bottom end is provided with a connecting hole, and a plurality of insulating rods can be connected in sequence, so that the connecting head of one insulating rod is inserted into the connecting hole of another insulating rod; The connecting head of the top insulating rod is connected with the installation hole;

A wire rope, one end of which is fixed on the rear end of the movable knife rest, and said wire rope goes around the first pulley and the second pulley in turn;

a spool, which is rotatably arranged on the lower part of the insulating rod at the lowermost end, and the other end of the wire rope is fixed on the spool;

a worm wheel fixedly connected coaxially with the bobbin;

The two ends of the worm are rotatably supported on the lower part of the insulating rod at the lowermost end, and the worm is meshed with the worm wheel.

Preferably, a saw blade is also provided on the top of the fixed knife holder.

Preferably, both the fixed blade and the movable blade are made of SK5 carbon tool steel.

The beneficial effects of the utility model are: the utility model is convenient and quick to complete the tree pruning, improves the work efficiency of pruning by manual and operation vehicles in the past, reduces the labor intensity, and strengthens the proficiency in the use of high-branch shears in the process of daily use It improves the operation quality of power channel pruning, increases the distance from the dangerous area, and increases safety, thus solving the problems of high labor intensity, low efficiency, and certain danger. The utility model utilizes the self-locking characteristic of the worm gear and worm transmission, and avoids the phenomenon of hands-off when the wire rope is pulled.

Description of drawings

Fig. 1 is a schematic diagram of the installation positions of the fixed knife rest and the movable knife rest according to the utility model.

Fig. 2 is a structural schematic diagram of the insulating rod described in the present invention.

Fig. 3 is a structural schematic diagram of the driving mechanism described in the present invention.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it by referring to the description.

As shown in FIG. 1 , the utility model provides an insulated telescopic high-branch shears, including a fixed blade frame 110 , and a fixed blade 111 is arranged on the top of the fixed blade frame 110 . The middle part of the movable knife rest 120 is hinged on the fixed knife rest 110, so that the movable knife rest 120 can rotate relative to the fixed knife rest 110 around the hinge point. The front end of described movable knife rest 120 is fixed with movable blade 121, and described fixed blade 111 and movable blade 121 have constituted two blades of scissors, by making movable knife rest 120 rotate, movable blade 121 is made close to fixed blade 111, makes them A shearing force is formed between the branches, cutting off the branches.

One end of the spring 130 is connected to the top of the fixed knife rest 110, and the other end is connected to the rear end of the movable knife rest 120. By the pulling force of the spring 130, the fixed blade 111 and the movable blade 121 are kept away from each other, so that they are opened to maximum angle.

The bottom of the fixed knife rest 110 is provided with a mounting hole, referring to Fig. 2 together, the top of the insulating rod 140 is provided with a connecting head 141, and the connecting head 141 can be inserted into the mounting hole, so that the fixed knife rest 110 is fixed on the The top of the insulating rod 140. The connecting head 141 is connected to the mounting hole through a pin type and a ball connection, or is connected through threads.

The bottom of the insulating rod 140 is provided with a connecting hole, and the two insulating rods 140 can be connected together, and the connecting head 141 of one insulating rod 140 is connected with the connecting hole of the other insulating rod 140 . A plurality of insulating rods 140 can be connected according to the actual height requirement, so as to achieve the effect of stretching and lengthening. The two insulating rods 140 are also connected by pins and balls, or by threads.

The utility model also includes a driving mechanism for driving the movable knife rest 120 to rotate relative to the fixed knife rest 110, so that the fixed blade 111 and the movable blade 121 are close to each other for cutting.

The driving mechanism includes a first pulley 112 arranged at the bottom of the fixed knife rest 110 , a second pulley 122 arranged at the rear end of the movable knife rest 120 , and a wire rope 150 . One end of the wire rope 150 is fixed on the rear end of the movable knife rest 120, and then the wire rope 150 goes around the first pulley 112 and the second pulley 122 in turn, and then hangs down. When the wire rope 150 is pulled downward, the elastic force of the spring 130 can be overcome, and the movable knife rest 120 is rotated relative to the fixed knife rest 110 to perform cutting.

As shown in FIG. 3 , the driving mechanism further includes a bobbin 151 disposed under the lowermost insulating rod 140 , and the bobbin 151 is rotatably connected to the insulating rod 140 . A worm wheel 152 is fixed coaxially with the bobbin 151 . Both ends of the worm 153 are rotatably supported on the lower part of the insulating rod 140 at the lowermost end, and the worm 153 is engaged with the worm wheel 152 . One end of the worm 153 is provided with a hand wheel, and by turning the hand wheel, the worm 153 is driven to rotate, and then the worm wheel 152 and the bobbin 151 are driven to rotate together, and the wire rope 150 is wound on the bobbin 151, which also plays a role in pulling the wire rope 150 downward. effect. Due to the self-locking characteristics of the worm gear transmission, it is not necessary to continuously pull down like pulling the wire rope directly. You only need to turn the handwheel at a certain angle, stop and continue to rotate, and the wire rope will not return, which is convenient for the operator. Brings great convenience.

The top of the fixed knife rest 110 is also provided with a saw blade 113, through which the branches that are difficult to cut can be sawed off. Both the fixed blade 111 and the movable blade 121 are made of SK5 carbon tool steel.

The utility model is applied to pruning trees that require high-altitude operations under the power channel of the transmission line. Using the tool is convenient and quick to complete tree pruning, which improves the work efficiency of pruning by manual and operation vehicles in the past, and reduces labor intensity. In the process of use, the proficiency in the use of high-branch shears is strengthened, the quality of power channel pruning is improved, and the distance from the dangerous area is increased, which increases safety, thereby solving the problem of high labor intensity, low efficiency, and certain dangers. sex issue.

Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and implementation. It can be applied to various fields suitable for the utility model. Additional modifications can readily be made by those skilled in the art. Therefore, the invention should not be limited to the specific details and examples shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (3)

1. The averruncator 1. a kind of insulated type stretches, which is characterized in that including：

   Immovable support, top are provided with fixed blade, first pulley, the immovable support are provided with below the immovable support Bottom be provided with mounting hole；

   Movable carriage, middle part are hinged on immovable support, and the movable carriage is fixedly arranged at the front end with movable blades；The activity The rear end of knife rest is provided with second pulley；

   Spring, both ends are separately fixed at the top of the immovable support and the rear end of movable carriage；

   Multiple insulating bars, the top of the insulating bar are provided with connector, and bottom end is provided with connecting hole, and multiple insulating bars can be according to Secondary connection makes the connector of one of insulating bar be inserted into another insulation lever attachment hole；Positioned at the insulating bar of top Connector is connect with the mounting hole；

   Cotton rope, one end of which is fixed on the rear ends of movable carriage, and the cotton rope bypasses first pulley and second pulley successively；

   Spool is rotatably arranged on positioned at the lower part of the lowermost insulating bar, and the other end of the cotton rope is fixed on spool On；

   Worm gear is fixedly and coaxially connected with the spool；

   Worm screw, both ends are rotatably supported at positioned at the lower part of the lowermost insulating bar, and the worm screw mutually nibbles with the worm gear It closes.
2. The averruncator 2. insulated type according to claim 1 stretches, which is characterized in that the top of the immovable support is also set up There is saw blade.
3. The averruncator 3. insulated type according to claim 1 stretches, which is characterized in that the fixed blade and movable blades are equal It is made of SK5 carbon, C steel materials.