CN105896379B - For the live working platform of overhead transmission line - Google Patents

Abstract

The invention provides a live working platform for overhead power transmission lines. The live working platform for overhead power transmission lines includes traction devices, pull ropes, pulleys and hanging baskets, wherein the pulleys are installed on the overhead power transmission lines. The traction device is fixedly connected to the first end of the stay rope, and the second end of the stay rope is fixedly connected to the hanging basket after bypassing the pulley. During operation, the live workers are located in the hanging basket, and the hanging basket is driven to move up and down by the traction device, without the need for live workers to climb up and down, so as to provide a support and protection platform for the staff working on the overhead transmission line live work and maintenance, and improve the It is safe to work at high altitude, and because live workers do not need to climb up and down, it shortens the time required for operators to overhaul and enables live workers to operate conveniently, quickly and safely.

Description

Live working platform for overhead transmission lines

technical field

The invention relates to the field of machinery, in particular to a live working platform for overhead power transmission lines.

Background technique

Live work refers to a method of repairing and testing high-voltage electrical equipment without power failure. Electrical equipment needs frequent testing, inspection and maintenance during long-term operation. Live work is an effective measure to avoid maintenance blackouts and ensure normal power supply. The content of live work can be divided into several aspects such as live test, live inspection and live maintenance.

The objects of live work include electrical equipment in power plants and substations, overhead transmission lines, distribution lines and distribution equipment. The main items of live work (see picture) are: live replacement of line pole and tower insulators, cleaning and replacement of insulators, washing of insulators with water, crimping and repairing wires and overhead ground wires, detection of defective insulators, testing and replacement of isolating switches and lightning arresters, and testing of transformer temperature rise and dielectric loss value. Live work can be divided into three categories according to the relationship between the human body and the charged body: equipotential work, ground potential work and intermediate potential work.

The overhead transmission line is a power line erected on the ground and insulated by insulators and air. The overhead line is composed of conductors, overhead ground wires, insulator strings, towers, grounding devices and other parts.

In the past, when the overhead transmission line was overhauled, live workers either climbed up from the tower of the overhead transmission line, or climbed up through the rope ladder after hanging a rope ladder on the transmission wire. On the power transmission line, live workers do not have a live work maintenance platform, which cannot provide enough support and protection for live workers, so it is very unsafe to work at heights.

Contents of the invention

The purpose of the present invention is to provide a live working platform for overhead power transmission lines to solve the technical problem that the prior art cannot provide sufficient support and protection for live working personnel.

The present invention provides a live working platform for overhead power transmission lines. The live working platform for overhead power transmission lines includes: traction devices, pull ropes, pulleys and hanging baskets, wherein the pulleys are installed on the overhead power transmission lines , the traction device is fixedly connected to the first end of the stay rope, and the second end of the stay rope is fixedly connected to the hanging basket after bypassing the pulley.

Further, the traction device is a hoist, and the hoist includes a winding wheel, and the first end of the pull rope is wound on the winding wheel.

Further, the live work platform for overhead power transmission lines also includes a stay rope guide bracket, the stay rope guide bracket is fixedly installed on the hoist, and the stay rope on the winding wheel is passed around the stay rope Boot bracket.

Further, the pulley is hung on the overhead transmission line.

Further, the live working platform for overhead power transmission lines also includes a pulley safety rope, the first end of the pulley safety rope is fixed on the ground, and the second end of the pulley safety rope bypasses the overhead power transmission line The wires are fixedly connected to the pulley, and the pulley is hung on the overhead transmission line through the pulley safety rope.

Further, the live working platform for overhead power transmission lines also includes a base and guide wheels, the guide wheels are installed on the base, and the safety rope of the pulley is located in the middle of the safety rope of the pulley and bypasses the guide wheel. wheel.

Further, the live working platform for overhead power transmission lines further includes a safety rope, the first end of the safety rope is fixedly connected to the overhead power transmission line, the second end of the safety rope forms a connecting ring, and the The connecting ring is used to be set on the waist of the live working personnel.

Further, the pulley is a fixed pulley.

Further, the hanging basket is a triangular frame structure.

Further, the hanging basket is provided with a safety device.

The live work platform for overhead power transmission lines provided by the present invention includes: traction devices, stay ropes, pulleys and hanging baskets, wherein the pulleys are installed on overhead power transmission lines, and the first pulley of the traction devices and the stay ropes end is fixedly connected, and the second end of the stay rope is fixedly connected with the hanging basket after bypassing the pulley. During operation, the live workers are located in the hanging basket, and the hanging basket is driven to move up and down by the traction device, without the need for live workers to climb up and down, so as to provide a support and protection platform for the staff working on the overhead transmission line live work and maintenance, and improve the It is safe to work at high altitude, and because live workers do not need to climb up and down, it shortens the time required for operators to overhaul and enables live workers to operate conveniently, quickly and safely.

Description of drawings

Fig. 1 is a schematic structural diagram of a live working platform for overhead power transmission lines provided by an embodiment of the present invention.

In the figure,

1. Ground; 2. Hoist; 3. Winding wheel;

4. Pull rope guide bracket; 5. Pull rope; 6. Hanging basket;

7. Pulleys; 8. Conductors of overhead transmission lines;

9. Safety safety device; 10. Pulley safety rope.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Wherein, the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Fig. 1 is a schematic structural diagram of a live working platform for overhead power transmission lines provided by an embodiment of the present invention.

As shown in Figure 1, the present invention provides a live working platform for overhead power transmission lines, said live working platform for overhead power transmission lines includes: traction device, stay rope 5, pulley 7 and hanging basket 6, wherein, The pulley 7 is installed on the overhead transmission line, the traction device is fixedly connected to the first end of the stay rope 5, and the second end of the stay rope 5 is fixed to the hanging basket 6 after bypassing the pulley 7 connect.

Wherein, the stay cord 5 can be a steel wire rope or a chain.

The working process of the live working platform used for overhead transmission lines provided by the present invention:

Before the hanging basket 6 is hoisted, the operator needs to install the pulley 7 wound with the stay rope 5 on the overhead power transmission line; Pull tight, and the stay rope 5 will hoist the hanging basket 6. Hanging basket 6 is carrying the overhaul staff member to arrive designated position, and after taking safety measures, the overhaul staff member just can work.

It can be seen that the live working platform for overhead power transmission lines provided by the present invention includes a traction device, a stay rope 5, a pulley 7 and a hanging basket 6, and live workers are located in the hanging basket 6, and the hanging basket 6 is driven up and down by the traction device Mobile, without the need for live workers to climb up and down, so as to provide a support and protection platform for the staff working on the overhead transmission line live work maintenance, improve the safety of working at high altitudes, and because live workers do not need to climb up and down , Therefore, the time required for the maintenance of the operator is shortened, so that the live working personnel can operate conveniently, quickly and safely.

In order to further improve safety, during live work, the operator needs to enter the equipotential situation before performing the operation.

Further, the traction device may be various devices capable of pulling the stay rope 5, such as a winch 2 and a winch.

Preferably, as shown in FIG. 1 , the traction device is a hoist 2 , the hoist 2 includes a winding wheel 3 , and the first end of the pull rope 5 is wound on the winding wheel 3 . When the reel 3 rotates to the first direction around its own rotation axis, the reel 3 releases the stay rope 5 wound on the reel 3, and the hanging basket 6 moves downward under the action of gravity. When the hanging basket 6 falls to the ground At 1 o'clock, the operator can come out of the hanging basket 6; otherwise, when the reel 3 rotates to the second direction around its own rotation axis, the reel 3 wraps the stay rope 5 tightly, and the stay rope 5 pulls the hanger 6 to move upward. , when the hanging basket 6 moves to the working position, the operator can perform maintenance and other operations.

Further, the live work platform for overhead power transmission lines also includes a stay rope guide bracket 4, the stay rope guide bracket 4 is fixedly installed on the hoist 2, and the stay rope 5 on the reel 3 winds The support 4 is guided through the stay cord.

The stay cord guiding bracket 4 is used to guide the pulling direction of the stay cord 5 , and the stay cord guiding bracket 4 may include a fixed pulley as long as it can guide the pulling direction of the stay cord 5 .

Specifically, the stay cord guiding support 4 includes a support body and a fixed pulley, the fixed pulley is fixedly arranged on the support body, and the stay cord 5 walks around the fixed pulley.

The bracket body can be various suitable shelves such as a tripod frame and a rectangular frame.

In the present invention, the pulley 7 can be installed on the overhead transmission line through various connection methods, such as a detachable method (such as a screw connection method).

Preferably, as shown in FIG. 1 , the pulley 7 is hung on the overhead transmission line. In this embodiment, by means of hanging, it is very convenient and fast when the pulley 7 is installed on and removed from the overhead transmission line.

The stay rope 5 that pulls the hanging basket 6 goes around the pulley 7 , so the hanging basket 6 exerts a downward pulling force on the pulley 7 through the stay rope 5 .

Further, as shown in FIG. 1 , the live working platform for overhead power transmission lines also includes a pulley safety rope 10, the first end of the pulley safety rope 10 is fixed on the ground 1, and the pulley safety rope 10 The second end is fixedly connected to the pulley 7 after bypassing the wire 8 of the overhead transmission line, and the pulley 7 is hung on the overhead transmission line through the pulley safety rope 10 .

The stay rope 5 that pulls the hanging basket 6 bypasses the pulley 7, therefore, the hanging basket 6 exerts a downward pulling force on the pulley 7 through the stay rope 5, and the pulley 7 tightens the pulley safety rope 10 after receiving the pulling force, thereby keeping the pulley 7 not loose.

Further, as shown in Figure 1, the live working platform for overhead power transmission lines also includes a base and guide wheels, the guide wheels are installed on the base, and the pulley safety rope 10 is located on the pulley safety rope The middle part of 10 goes around the guide wheel.

The guide wheel is used to guide the pulling direction of the pulley safety rope 10 . At the same time, the guide wheel can also support the middle part of the pulley safety rope 10 .

Further, the live working platform for overhead power transmission lines further includes a safety rope, the first end of the safety rope is fixedly connected to the overhead power transmission line, the second end of the safety rope forms a connecting ring, and the The connecting ring is used to be set on the waist of the live working personnel.

The safety rope in this embodiment plays a role in improving the installation coefficient, even if the hanging basket 6 falls due to an accident, the safety rope can keep live workers from falling. At the same time, the connecting ring is also convenient to quickly connect the live worker to the safety rope. Before the operation, the connecting ring is set around the waist of the live worker and tied tightly to the waist of the live worker.

Further, the pulley 7 may be a fixed pulley. The relative position of the pulley 7 between the conductors 8 of the overhead transmission line remains unchanged.

Further, the hanging basket 6 can be of various structures and shapes. For example, the hanging basket 6 is a rectangular frame, a triangular frame, a polygonal frame or the like. Hanging basket 6 can be formed by metal welding. The bottom of hanging basket 6 is a working platform, and the operator can stand on it and carry out work.

Preferably, the hanging basket 6 is a triangular frame structure, as shown in FIG. 1 . The triangular frame maintains balance under the joint action of gravity and the stay rope 5, wherein one of the vertexes of the triangular frame faces upwards and is connected with the second end of the stay rope 5, and the other two vertexes of the triangular frame face downward, A tumbler structure with a light upper part and a heavier lower part is formed, thereby avoiding accidents caused by the overturning of the hanging basket 6 and improving safety in use.

Further, as shown in FIG. 1 , the hanging basket 6 is provided with a safety device 9 .

Specifically, the safety insurance device 9 can be of various suitable structures, as long as it can be used to ensure the safety of maintenance workers, it can be used in the present invention.

In one embodiment of the present invention, the safety device 9 includes a sensor and an alarm connected to the sensor. The sensor is arranged on the hanging basket to detect the state of the hanging basket (such as the position of the hanging basket, the acceleration during the lifting of the hanging basket), and when the state of the hanging basket exceeds a safe value, the alarm will give an alarm.

The alarm can be various suitable structures such as a buzzer, a flashing light, a horn, and the like.

The sensor may be an acceleration sensor, a touch sensor, and the like.

The safety device 9 can also include a controller, which is connected with the sensor, can receive the state information of the hanging basket sent by the sensor and is connected with the hoist 2 to control the start and stop of the hoist 2 .

In a preferred embodiment of the present invention, the alarm is a buzzer, and the sensor adopts an acceleration sensor. When the acceleration of the hanging basket detected by the acceleration sensor is greater than the set value, the buzzer sounds an alarm, and at the same time, the controller accepts After receiving the descending acceleration information of the hanging basket sent by the acceleration sensor, control the winch 2 to close, so that the winding wheel 3 stops rotating, and the pull rope 5 pulls the hanging basket 6 to prevent the hanging basket 6 from accidentally falling too fast and causing damage to the testing personnel. Improve the safety of inspection operations.

Fig. 1 is a schematic structural diagram of a live working platform for overhead power transmission lines provided by an embodiment of the present invention. In a preferred embodiment of the present invention, as shown in FIG. 1 , the live working platform for overhead power transmission lines includes all the above-mentioned components. Before the hanging basket 6 is hoisted, the operator is required to hang the pulley 7 and the pulley safety rope 10 with the stay rope 5 on the conductor of the overhead power transmission line. Then, the maintenance worker stands on the hanging basket 6, and the connecting ring on the safety rope is hung on the waist of the maintenance worker. Open hoist 2, hoist basket 6 by hoist 2 on ground 1, reel 3, stay rope 5 guide frame, stay rope 5. Hanging basket 6 is carrying the overhaul staff member to arrive designated position, and after taking safety measures, the overhaul staff member just can work.

In a preferred embodiment of the present invention, the live working platform for overhead power transmission lines includes the hoist 2, the reel 3, the stay rope guide bracket 4, and the stay rope 5 described above. , the hanging basket 6, the pulley 7, the safety device 9 and the pulley safety rope 10.

The live workers are located in the hanging basket 6, and the hanging basket 6 is driven to move up and down by the traction device, without the need for the live workers to climb up and down, so as to provide a support and protection platform for the staff working on the overhead transmission line live work and maintenance, which improves The safety of high-altitude operations, and because the live workers do not need to climb up and down, it shortens the time required for the maintenance of the workers, so that the live workers can operate conveniently, quickly and safely.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (9)

1. A live work platform for overhead power transmission lines, characterized in that it comprises: a traction device, a stay rope, a pulley and a hanging basket, wherein the pulley is installed on the overhead power transmission line, and the traction device and the The first end of the stay rope is fixedly connected, and the second end of the stay rope is fixedly connected with the hanging basket after bypassing the pulley. The hanging basket is provided with a safety device, and the safety safety device includes: a sensor and An alarm connected to the sensor; the sensor is set on the hanging basket to detect the state of the hanging basket, and when the state of the hanging basket exceeds a safe value, the alarm will give an alarm. 2. The live working platform for overhead power transmission lines according to claim 1, wherein the traction device is a hoist, and the hoist includes a reel, and the first end of the stay rope is wound on the on the reel. 3. The live working platform for overhead power transmission lines according to claim 2, further comprising a stay rope guide bracket, the stay rope guide bracket is fixedly installed on the hoist, and the wire reel The drawstring is passed around the drawcord guide bracket. 4. The live working platform for overhead power transmission lines according to claim 1, wherein the pulley is hung on the overhead power transmission line. 5. The live working platform for overhead power transmission lines according to claim 4, further comprising a pulley safety rope, the first end of the pulley safety rope is fixed on the ground, and the first end of the pulley safety rope The two ends are fixedly connected to the pulley after bypassing the wire of the overhead transmission line, and the pulley is hung on the overhead transmission line through the pulley safety rope. 6. The live working platform for overhead power transmission lines according to claim 5, further comprising a base and guide wheels, the guide wheels are mounted on the base, and the safety rope of the pulley is located on the pulley The middle part of the safety rope goes around the guide wheel. 7. The live working platform for overhead power transmission lines according to claim 1, further comprising a safety rope, the first end of the safety rope is fixedly connected to the overhead power transmission line, and the safety rope The second end forms a connecting ring, and the connecting ring is used to be sleeved on the waist of a live working person. 8. The live working platform for overhead power transmission lines according to claim 1, wherein the pulley is a fixed pulley. 9. The live working platform for overhead power transmission lines according to claim 1, characterized in that the hanging basket is a triangular frame structure.