CN105967056A - Clip type special lifting hook for electric pole - Google Patents

Abstract

The invention discloses a clip type special lifting hook for an electric pole and relates to the field of lifting. The lifting hook comprises two hinging rods hinged around a rotating shaft, wherein an arc-shaped fixed clamping plate is arranged on the lower end part of the hinged rods; a semicircular mounting ring is arranged on each side of the arc-shaped fixed clamping plate; a friction sheet is arranged inside each semicircular mounting ring; and a leaf spring is arranged between each semicircular mounting ring and each friction sheet. The lifting hook disclosed by the invention is low in tool cost, can be used on a large scale, and can be used for simply and quickly lifting and conveying the electric pole; manual operating steps are reduced, unsafe factor generated by rolling of the electric pole which is manually bound are reduced, and the work efficiency is favorably improved.

Description

A special hook for scissors type electric pole

technical field

The invention relates to the field of hoisting and hoisting, in particular to a special hook for scissors type electric poles.

Background technique

When the line construction unit hoists the poles on site, it generally uses steel wire ropes as the main hoisting auxiliary tool, and uses the steel wire ropes to bind and fix the poles for hoisting. Due to the small size and heavy weight of the electric pole, more manpower is required to assist the operation, which has potential safety hazards and is not conducive to the improvement of work efficiency.

Because the pole is in contact with the ground, it is necessary to manually lift one end of the pole and place a support, or choose to dig the ground at the center of the pole so that there is a ground clearance between the pole and the ground, so that it can be tied to the center of the cement pole with a steel wire rope point, then lift the pole, and manually untie the wire rope buckle after the hoisting is completed.

The hoisting scheme in which steel wire ropes are tied to the center of the cement pole is adopted. Because the pole is in contact with the ground, one end of the pole needs to be lifted manually. Because the electric pole is small in size and heavy in weight, more manpower is required for repeated operations. Excessive use of manpower has many construction safety hazards and is not conducive to the improvement of work efficiency.

Contents of the invention

Aiming at the problems of low efficiency and potential safety hazards during the transportation of electric poles, the present invention provides a special hook for scissor-clamp type electric poles, which can avoid the occurrence of the above-mentioned problems.

The technical scheme that the present invention solves its technical problem to take is:

A special hook for scissor-clamp electric poles, including two hinged rods hinged around the rotating shaft, an arc-shaped fixed clamp is arranged at the lower end of the hinged rod, and semicircular mounting brackets are arranged on both sides of the arc-shaped fixed clamp. A friction plate is arranged inside the semicircular mounting ring, and a leaf spring is arranged between the semicircular mounting ring and the friction plate.

Further, a number of positioning holes are provided on one side of the installation ring, and a bolt is installed in each of the positioning holes on the two arc-shaped fixing clamps, and the two bolts are connected by a chain, and the chain is ring-shaped around the pole the underside of the

Further, an annular installation groove is provided in the semicircular installation ring, an arc-shaped rack is arranged in the annular installation groove, and a knob is arranged on the arc-shaped surface of the semicircle installation ring. A gear is provided, and the gear is meshed with the arc rack.

Further, a positioning hole is provided on the arc surface of the semicircular mounting ring, a positioning pin is installed in the positioning hole, and a corresponding locking hole is provided on the arc-shaped rack, and the positioning pin passes through The positioning hole is fixed in the locking hole.

Further, the positioning hole is provided with an internal thread, the end of the positioning pin is provided with an external thread, and the positioning pin is installed in the positioning hole through a threaded connection.

The beneficial effects of the present invention are:

The tool of the invention is low in cost, can be used on a large scale, can easily and quickly hoist and carry the pole, reduces manual operation steps, reduces unsafe factors caused by the rolling of the pole when the pole is manually tied, and is beneficial to work efficiency improvement.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some preferred embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the structural representation of the first embodiment;

Fig. 3 is the structural representation of the second embodiment;

Fig. 4 is the structural representation of the third embodiment;

FIG. 5 is a partially enlarged view of A in FIG. 4 .

In the figure: 1 articulated rod, 2 rotating shaft, 3 electric rod, 4 semicircular mounting ring, 401 convex teeth, 402 concave teeth, 5 arc-shaped fixing clamps, 6 positioning holes, 7 annular mounting grooves, 8 knobs, 9 Locating pin, 10 curved tooth racks, 11 upper connecting rods, 12 rectangular hooks, 13 hinged locking ports.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with specific embodiments and accompanying drawings. Obviously, the described embodiments are only some preferred embodiments of the present invention, not all embodiments. Those skilled in the art can make similar modifications without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

As shown in Figure 1 and Figure 2, a special hook for scissors type electric poles includes two hinged rods 1 hinged around the rotating shaft 2, and an arc-shaped fixed clamping plate 5 is arranged at the lower end of the hinged rods 1. The two arc-shaped fixed clamps 5 can clamp the pole between the two arc-shaped fixed clamps 5 by means of the leverage of the two hinged rods 1 .

A semicircular mounting ring 4 is provided on both sides of the arc-shaped fixed clamping plate 5, and a friction plate is provided on the inner side of the semicircular mounting ring 4. This design can better prevent the electric pole from sliding.

A more optimal design, a leaf spring is arranged between the semicircular mounting ring 4 and the friction plate, this design is suitable for small electric poles, and the electric pole can be better prevented from sliding by virtue of the elastic force of the leaf spring.

A more optimal design is provided with several positioning holes on one side of the mounting ring 4, as shown in Figure 2, a bolt is respectively installed in the positioning holes on the two arc-shaped fixed clamping plates, and the two bolts pass through The chains are connected, and the chains are looped around the underside of the pole.

The second embodiment is shown in FIG. 3 . The difference from the first embodiment is that an annular installation groove 7 is provided in the semicircular installation ring 5, and an arc-shaped rack 10 is arranged in the annular installation groove. A knob 8 is arranged on the arc surface of the knob 8, and a gear is arranged under the knob 8, and the gear meshes with the arc rack 10. With the rotation of the knob 8, the gear drives the arc rack 10 to move, so that the arc The rack 10 moves from the arc-shaped fixed clamping plate 5 on one side to the arc-shaped fixed clamping plate 5 on the other side, so as to provide protection for preventing the electric pole 3 from slipping accidentally.

A more optimal design, a positioning hole is provided on the arc surface of the semicircular mounting ring 5, a positioning pin 9 is installed in the positioning hole, and a corresponding locking position is provided on the arc rack 10 hole, so that the arc rack 10 can be clamped by means of the positioning pin 9.

In addition, the positioning pin 9 can also serve as an auxiliary support, which is beneficial to keep the position of the whole device level.

The third embodiment, as shown in Figure 4, differs from the above-mentioned embodiments in that an upper link 11 is hinged on the top of the hinged bar 1, and two hinged bars 1 and two upper links 11 form a parallelogram mechanism together. , a rectangular hook 12 is arranged above the parallelogram mechanism.

When the electric pole is lifted, the parallel decagonal mechanism deforms, which will make the hinged locking opening 13 formed between the two arc-shaped fixed clamping plates 5 continuously become smaller under the action of the force.

A more optimal design, as shown in Figure 5, is provided with protruding teeth 401 on the semicircular mounting ring 4, and is provided with concave teeth 402 on the other semicircular mounting ring 4, and this design can be used in parallelogram mechanism Better lock the electric pole 3 in the process of continuous deformation.

Except for the technical features described in the instructions, all are known technologies by those skilled in the art.

Claims (7)

1. A special lifting hook for scissors-type electric poles, which is characterized in that it comprises two hinged rods hinged around the rotating shaft, and an arc-shaped fixed clamp is arranged at the lower end of the hinged rods, and each of the two sides of the curved fixed clamps A semicircular mounting ring is provided, a friction sheet is arranged inside the semicircular mounting ring, and a leaf spring is arranged between the semicircular mounting ring and the friction sheet. 2. A special hook for scissors-type electric poles according to claim 1, characterized in that, one side of the mounting ring is provided with a number of positioning holes, each of which is installed in the positioning holes on the two arc-shaped fixed clamping plates. There is a bolt, and the two bolts are connected by a chain, and the chain loops around the lower side of the electric pole. 3. A special hook for scissors-type electric poles according to claim 1, wherein an annular installation groove is arranged in the semicircular installation ring, and arc-shaped teeth are arranged in the annular installation groove. a bar, a knob is arranged on the arc surface of the semicircular mounting ring, a gear is arranged under the knob, and the gear meshes with the arc rack. 4. A special hook for scissors-type electric poles according to claim 3, characterized in that, a positioning hole is provided on the arc surface of the semicircular mounting ring, and a positioning pin is installed in the positioning hole , and at the same time, a corresponding locking hole is provided on the arc-shaped rack, and the positioning pin passes through the positioning hole and is fixed in the locking hole. 5. A special hook for scissors-type electric poles according to claim 4, characterized in that, the locking hole is provided with an internal thread, the end of the positioning pin is provided with an external thread, and the positioning pin passes through the thread. The connection is installed in the card position hole. 6. A special hook for scissors-type electric poles according to claim 5, wherein the upper part of the hinged rod is hinged with an upper connecting rod, and the two hinged rods and the two upper connecting rods together form a parallel The quadrilateral mechanism is provided with a rectangular hook above the parallelogram mechanism. 7. A special hook for scissors type electric poles according to claim 6, characterized in that, the semicircular mounting ring is provided with convex teeth, and the other semicircular mounting ring is provided with concave teeth, The concave teeth match the convex teeth.