CN205901178U - Concrete pole tower overhead earth wire hoisting device - Google Patents

Abstract

The utility model relates to a lifting device for an overhead ground wire of a cement pole tower. The lifting device for the overhead ground wire of the cement pole tower includes a support lever, a fixing device, a positioning device and a lifting device. The support lever is evenly provided with round holes, one end of the support lever is fixed on the fixing device, and the other end of the support lever is connected to a A positioning device and a lifting device; the positioning device is located between the fixing device and the lifting device, the positioning device is a positioning baffle, and the positioning baffle positions the support lever through a positioning pin. The beneficial effects of the utility model: the structure is simple, the structural characteristics and the principle of the lever at the top of the tower are fully utilized in the operation, saving time and effort, and the operation is simple; the supporting lever used is small in size, light in weight, easy to carry, and can be operated by a single person ; After repeated field tests and improvement and optimization, it can reduce labor intensity, safety risks and improve work efficiency.

Description

Cement tower overhead ground wire lifting device

technical field

The utility model relates to the technical field of construction or maintenance equipment for overhead transmission lines, in particular to a lifting device for cement pole tower overhead ground wires.

Background technique

In the construction of overhead power transmission lines using cement towers, since there is no available support point above the suspension point of the cement tower overhead ground wires, it is very difficult to erect the ground wires. Therefore, it can only be done manually by hand or shoulder. However, when encountering a tower with a large span and severe line depression, it is difficult to lift the heavy ground wire into place by manual force, and there is a great potential safety hazard. Threatening the personal safety of the construction workers on the tower.

At present, the tools used to lift the overhead ground wires of transmission lines are more tools such as picker rods, hand chain chain hoists, DYQ12 type and DTG type overhead ground wire lifters. When using the hand-pull chain hoist combination tool to replace the suspension clamp of the overhead ground wire, due to the weight of the chain hoist itself and the length of the chain, etc., it is inconvenient to carry the upper and lower towers, and the safety risk of working above the live line is relatively high. The strength is also relatively high, and the operation efficiency is low; the DYQ12 overhead ground wire lifter is simple to operate, relatively complicated in shape, heavy in itself, inconvenient to carry up and down the tower, and inconvenient to install on the tower, which increases the labor intensity and safety risks of live work , affecting work efficiency; DTG type overhead ground wire lifter has a relatively simple structure, beautiful appearance, relatively light weight, and is easy to operate, which can reduce the labor intensity of live work, safety risks and improve work efficiency, but it can only be used for self-supporting towers , cannot be used on concrete poles.

Contents of the invention

The purpose of this utility model is to solve the problems of inconvenient portability, high labor intensity, high safety risk, inconvenient installation and low work efficiency in the above-mentioned prior art, and provide a convenient operation, easy to carry, good safety performance and high work efficiency. Concrete tower overhead ground wire lifting device.

The utility model is achieved through the following technical solutions:

The concrete tower overhead ground wire lifting device is special in that it includes a support lever 1, a fixing device, a positioning device and a lifting device. The support lever 1 is uniformly provided with round holes 11, and one end of the support lever 1 is fixed on the fixing device. The other end of the support lever 1 is connected with a positioning device and a lifting device through a circular hole 11;

The lifting device is a fixed pulley 6, and the fixed pulley 6 is fixed on the support lever 1 by a U-shaped hanging ring 2;

The positioning device is located between the fixing device and the lifting device. The positioning device is a positioning baffle 3 with a knuckle structure and adapted to the top structure of the pole tower. The hypotenuse of the positioning baffle 3 is U-shaped, and the U-shaped sides correspond to A positioning hole 31 compatible with the round hole 11 is provided, the diameter of the U-shaped mouth is greater than the width of the support lever 1, and the positioning baffle 3 positions the support lever 1 through the positioning pin;

The fixing device comprises double-ear feet 4 and rubber anti-skid blocks 5, the double-ear feet 4 are fixed on the inner wall of the tower, and the rubber anti-skid blocks 5 are located at the contact between the double-ear feet 4 and the inner wall of the tower.

An improvement of the utility model is that the lifting device also includes a manual hoist 7, which can assist the lifting of the open-ground wire during the lifting operation of the heavy-weight open-ground wire.

Yet another improvement of the utility model is that the double-ear leg 4 is provided with a fixing hole 41 , and the movable pin fixes the double-ear leg 4 and the support lever 1 through the fixing hole 41 .

Yet another improvement of the utility model is that a liner 12 is provided on the outer wall of the lower side of the support lever 1 , and a liner 32 is provided at the contact between the vertical edge of the positioning baffle 3 and the side wall of the pole tower.

More preferably, the liner 12 and the liner 32 are made of nylon material, which has high strength, durability, and can effectively protect the structure.

Preferably, the support lever 1 is a high-strength seamless square tube.

The beneficial effect of the utility model: the structure is simple, the structural characteristics and the principle of the lever at the top of the tower are fully utilized in the operation, saving time and effort, and the operation is simple; the supporting lever used is small in size, light in weight, easy to carry, and can be operated by a single person ; After repeated field tests and improvement and optimization, it can reduce labor intensity, safety risks and improve work efficiency.

Description of drawings

Fig. 1: the structural representation of embodiment 1;

Fig. 2: the structural representation of embodiment 2;

Figure 3: Schematic diagram of the structure of the support lever;

Figure 4: Schematic diagram of the positioning baffle;

Figure 5: Schematic diagram of the structure of the double ear support;

In the figure: 1: support lever; 11: round hole; 12: lining strip; 2: U-shaped hanging ring; 3: positioning baffle; 31: positioning hole; 32: liner; 4: double ear feet; 41: fixing Hole; 5: rubber anti-skid block for feet; 6: fixed pulley; 7: manual hoist.

detailed description

Below with reference to accompanying drawing, provide the specific embodiment of the present utility model, be used for further explaining the structure of the present utility model.

Example 1

The overhead ground wire lifting device of the cement pole tower of the present embodiment includes a support lever 1, a fixing device, a positioning device and a lifting device with reference to accompanying drawings 1-4.

The fixing device comprises double-ear feet 4 and foot rubber anti-skid blocks 5, and the double-ear feet 4 are fixed on the inner wall of the tower. The support lever 1 is evenly provided with circular holes 11, and the double-ear support foot 4 is provided with a fixing hole 41, and the movable pin fixes the double-ear support foot 4 and the support lever 1 through the fixing hole 41, so that one end of the support lever 1 is fixed on the fixing device superior.

The two-ear support foot 4 can increase the contact area of the support lever 1, and has an anti-slip function, thereby protecting the support lever 1 and the inner wall of the pole tower. In addition, rubber anti-skid blocks 5 are provided at the contact point between the double-ear feet 4 and the inner wall of the pole tower, which can effectively buffer and prevent the support lever 1 from slipping.

The other end of the support lever 1 is connected with a positioning device and a lifting device through a circular hole 11 .

The lifting device is fixed on the support lever 1 through the U-shaped hanging ring 2, and the lifting device adopts a fixed pulley 6, that is, the fixed pulley 6 is suspended on the supporting lever 1 through the U-shaped hanging ring 2, and is used for lifting lighter objects. open ground line.

The positioning device is located between the fixing device and the lifting device. The positioning device is a positioning baffle 3 with a knuckle structure and adapted to the top structure of the pole tower. The hypotenuse of the positioning baffle 3 is U-shaped, and the U-shaped sides correspond to A positioning hole 31 compatible with the round hole 11 is provided, the diameter of the U-shaped mouth is greater than the width of the support lever 1, the positioning baffle 3 positions the support lever 1 through the positioning pin, and the positioning pins at the front and back of the support lever 1 are adjusted. The position can be adapted to the wall thickness of different towers to ensure firm positioning. The fixed positions of the positioning baffle plate 3 and the fixed pulley 6 can be flexibly adjusted through the round hole 11, thereby changing the inclination of the support lever 1 and the horizontal distance of the fixed pulley 6 from the tower rod, so as to facilitate lifting to the fixed installation position of the open ground line.

Preferably, a liner 12 is provided on the outer wall of the lower side of the support lever 1, and a liner 32 is provided at the contact between the vertical edge of the positioning baffle 3 and the side wall of the tower. The liner 12 can effectively protect the support lever 1 and the top of the tower. On the contact surface of the inner port, the liner 32 plays the role of wear-resistant protection.

More preferably, the liner 12 and the liner 32 are made of nylon material, which has high strength, durability, and can effectively protect the structure.

The concrete tower overhead ground wire lifting device of this embodiment is used for lifting the lighter weight overhead ground wire, and the specific use process is as follows:

The staff on the pole tower first use the working rope to lift the lifting device of this embodiment to the top of the pole tower, and then according to the thickness of the pole wall at the top of the pole tower and the inclination of the required support lever 1, place the positioning pin on the positioning baffle 3 on the support Lever 1 is fixed front and back, and the lower end of support lever 1 is inserted in the double-ear leg 4 on the pole tower inwall, and movable pin passes fixing hole 41 and fixes. Need to install the suspended position according to overhead ground wire again, select suitable round hole 11 on support lever 1 as hanging hole, U-shaped hanging ring 2 is fixed on the hanging hole, U-shaped hanging ring 2 hangs fixed pulley 6, by The staff on the ground use the working rope to lift the empty ground wire to the installation position through the fixed pulley 6, and the staff on the tower can install and fix the overhead ground wire.

Example 2

The lifting device for the overhead ground wire of the cement pole tower in this embodiment is used for lifting the heavy overhead ground wire, so the lifting device is a manual hoist 7 .

The specific use process is as follows:

Its use steps are basically the same as in Example 1, the difference is that because the empty ground wire is heavy, a manual hoist 7 needs to be hung at the appropriate position of the support lever 1, and when the ground staff uses the working rope to lift the empty ground wire to On the top of the pole tower, when it is more difficult to further promote, the staff on the pole tower utilizes the manual hoist 7 to lift the empty ground wire to the required installation position for fixed installation.

The open ground line is raised in two steps, which is beneficial to reduce the labor intensity of the staff on the tower, greatly improves the work efficiency, and also ensures the construction safety.

The utility model cement tower overhead ground wire lifting device has the following advantages:

1. Simple structure and easy to carry. Making full use of the structural characteristics and the principle of leverage at the top of the cement pole tower, the structure is concise and easy to carry.

2. Easy to use and flexible operation. The hoisting operation of the overhead ground wire can be easily completed only by simple positioning adjustment and selection of the suspension position of the applicable fixed pulley or manual hoist.

3. Reasonable design, safe and reliable. It has sufficient strength, perfect anti-slip and positioning measures to ensure the safety of people and towers.

The preferred embodiment of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the specific details of the above-mentioned embodiment, and within the scope of the technical concept of the utility model, the technical solution of the utility model can be carried out in many ways. A simple deformation, these simple deformations all belong to the protection scope of the present utility model.

In addition, it should be noted that the specific technical features described in the above specific embodiments can be combined in any suitable way if there is no contradiction. The combination method will not be explained separately.

In addition, any combination of various implementations of the present invention can also be made, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims (6)

1. The lifting device for the overhead ground wire of the cement pole tower, which is characterized in that it includes a support lever (1), a fixing device, a positioning device and a lifting device. The support lever (1) is evenly equipped with round holes (11), and the support lever (1) One end is fixed on the fixing device, and the other end of the support lever (1) is connected with a positioning device and a lifting device through a round hole (11); The lifting device is a fixed pulley (6), and the fixed pulley (6) is fixed on the support lever (1) through a U-shaped hanging ring (2); The positioning device is located between the fixing device and the lifting device. The positioning device is a positioning baffle (3) with a knuckle structure and adapted to the top structure of the pole tower. The hypotenuse of the positioning baffle (3) is U-shaped. Positioning holes (31) corresponding to the round holes (11) are provided on both sides of the type. The diameter of the U-shaped mouth is larger than the width of the support lever (1), and the positioning baffle (3) is connected to the support lever ( 1) Positioning; The fixing device includes double-ear feet (4) and rubber anti-skid blocks (5), the double-ear feet (4) are fixed on the inner wall of the tower, and the rubber anti-skid blocks (5) are arranged on the double-ear feet (4) and the inner wall of the tower contact. 2. The lifting device for the overhead ground wire of the cement pole tower according to claim 1, characterized in that: the lifting device further includes a manual hoist (7). 3. The lifting device for the overhead ground wire of the cement pole tower according to claim 1 or 2, characterized in that: the double-ear leg (4) is provided with a fixing hole (41), and the movable pin is fixed to both sides through the fixing hole (41). Ear legs (4) and support levers (1). 4. The lifting device for the overhead ground wire of the cement pole tower according to claim 3, characterized in that: the outer wall of the lower side of the support lever (1) is provided with a lining strip (12), and the vertical edge of the positioning baffle (3) A liner (32) is provided at the contact point with the side wall of the tower. 5. The hoisting device for overhead ground wires of cement pole towers according to claim 4, characterized in that: the lining strips (12) and pads (32) are nylon materials. 6. The lifting device for overhead ground wire of cement pole tower according to claim 3, characterized in that: the support lever (1) is a high-strength seamless square tube.