CN102623923B - Lifting type rail insulation operation platform - Google Patents

Abstract

The invention discloses a lift-type fence insulating operation platform. The platform includes a moving device and an insulating platform body provided with a fence; the moving device includes an up and down lifting device, a left and right moving device and an insulating platform support; the up and down lifting device includes a guide rail, a worm gear and a worm device, pulley block, lifting rope and lifting limiter; the worm gear device is arranged at the bottom end of the guide rail; the pulley block includes a guide rail pulley fixed on the insulating platform support and clamping the guide rail and a lifting pulley passing through the lifting rope; the lifting limiter One end is fixed on the insulating platform bracket, and the other end is fixed with the guide rail; the insulating platform bracket is set on the front of the guide rail and fixed with the insulating platform body, and the bracket moves up and down along the guide rail through the guide rail pulleys arranged at the upper and lower ends of the bracket; the left and right moving device Contains support pulley, two pulley chains, and metal retaining chain. The invention can adjust the operation position up, down, left, and right, and improves the safety of live working.

Description

A Lifting Fence Insulation Operating Platform

technical field

The invention relates to an insulation platform used for live work, in particular to a lift-type fence insulation operation platform.

Background technique

Today, when the reliability of power supply is becoming more and more important, live working, as one of the important means to improve the reliability of power supply, has been paid more and more attention. The live working method of the insulated bucket truck has obvious advantages, such as short working time and high work efficiency, but a considerable number of power supply users have to cut off the power supply due to the limitation of the road environment and the insulated bucket truck cannot enter the construction site to carry out work. overhaul. As a mature live working project, the insulation operation platform operation has been widely used in the work. The original insulating platform has certain requirements for the installation position on the pole, and the working height cannot be adjusted up and down after the installation is completed. When working with high and low devices (such as the middle phase conductor of a 10kV triangle device), you can only overcome the lack of height by stepping on the fence of the insulating platform. At this time, the operator loses the effective protection of the fence and completely needs to rely on personal control. Ability and manipulative skills to maintain body balance and ensure safe work.

Contents of the invention

The purpose of the present invention is to provide an insulating platform for carrying out live climbing operations, which has relatively small requirements on the environment, takes up less space, and is relatively simple to operate up and down, and does not need to step on the fence of the platform to overcome the height barrier Insufficient, it can ensure the safety of the operation and expand the scope of live work.

In order to achieve the above object, the present invention provides a lifting fence insulating operation platform, the platform includes a moving device and an insulating platform body provided with a fence; the moving device includes an up and down lifting device, a left and right moving device and an insulating platform support; The up and down lifting device includes a guide rail, a worm gear device, a pulley block, a lifting rope and a lifting limiter; the front of the guide rail faces the insulation platform body, and the back faces the pole column, and two columns are respectively arranged on the other two sides Equidistantly arranged through holes; the worm gear device is arranged at the bottom end of the guide rail, and the worm wheel is also provided with a joystick extending to the outside of the guide rail, through which the worm gear device can be rotated; the The pulley block includes a number of guide rail pulleys fixed on the insulating platform support and clamping the guide rail and a number of lifting pulleys passing through the lifting rope; one end of the lifting limiter is fixed on the insulating platform support, and the other end matches the side of the guide rail. The through hole is fixed on the guide rail, and the lifting limiter can prevent the misoperation of the platform; the insulating platform support is arranged on the front of the guide rail, and is fixed with the insulating platform body; the insulating platform support is arranged on the insulating platform support The guide rail pulley whose upper end and lower end face the front of the guide rail can move up and down along the guide rail, and the insulating platform support is respectively provided with fixed points at the two sides of the upper end and the lower end facing the insulating platform body, and the fixed points are connected with the insulation by bolts and nuts respectively. The platform body is fixed firmly; the guide rail pulley clamps the guide rail to facilitate the adjustment of the working height, and the guide rail can increase the stability of the guide rail pulley when adjusting the working height up and down; The first lifting pulley, the second lifting pulley arranged at the center of the top of the guide rail and the third lifting pulley arranged at the center of the top of the insulating platform support; The metal fixed chain at the top of the guide rail; the supporting pulleys are respectively provided with two at the top and bottom of the guide rail, and the two pulley chains are also respectively arranged at the top and bottom of the guide rail, and the two ends of each pulley chain They are located on both sides of the supporting pulley respectively.

In the aforementioned lifting fence insulation operation platform, the guide rail is composed of two parallel rails.

In the above-mentioned lifting fence insulation operation platform, wherein, the worm gear device drives the first lifting pulley to rotate, and then drives the second lifting pulley and the third lifting pulley sequentially through the lifting rope. That is, the lifting pulley of the hoisting rope is passed through the adjustment of the worm and gear device, so that the insulation platform can realize the function of lifting up and down. The lifting rope passes through the first lifting pulley, the second lifting pulley and the third lifting pulley in turn, and the other end of the lifting rope is fixed on the top of the guide rail.

In the above-mentioned lift-type fence insulation operation platform, the lift limiter can be adjusted in position on the guide rail by being fixed in different through holes.

In the above-mentioned insulating operating platform of the lifting fence, the insulating platform support is further provided with a stop frame passing between the rails of the guide rails and clamping the guide rails at the back of the guide rails.

The above-mentioned lifting fence insulating operation platform, wherein, among the plurality of guide rail pulleys, two are arranged at the upper end of the insulating platform support, and four are arranged at the lower end of the insulating platform support.

The above-mentioned lift-type fence insulation operation platform, wherein, two of the guide rail pulleys arranged at the upper end of the insulating platform support are respectively matched with the inner sides of the two tracks of the guide rail, and four of the pulleys are arranged at the lower end of the insulating platform support, each two Only the inside and outside of one side of the guide rail track are matched with the track at the same height; wherein, the guide rail pulley at the inner side of the track is fixed on the said stop frame of the insulating platform support. That is, the pulley block of the up and down lifting device is composed of 6 guide rail pulleys clamping the guide rail and 3 lifting pulleys that pass the lifting rope.

In the above-mentioned insulating operating platform for lifting fences, the lengths of the metal fixing chains and pulley chains can be adjusted. One end of the metal fixed chain can be opened loosely, and the pulley chain can be fastened by rotating the support pulley. After the metal fixing chain is loosened, the moving device can be moved around the pole column through the pulley of the pulley chain and the supporting pulley. After adjusting to a suitable position, the metal fixing chain can be fastened to realize overall fixing.

The above-mentioned lifting fence insulating operation platform, wherein, the preferred material of the insulating platform body is FRP, the preferred material of the guide rail is aluminum alloy, and the preferred material of the pulley block, supporting pulley and pulley chain is nylon pulley. Among them, FRP, that is, epoxy glass cloth board (tube), is mainly composed of glass cloth and epoxy resin plus coagulant. Its density is 1.5-2.0, which is 3-4 times lighter than steel, but its strength is 1.7 times higher than steel. times, therefore, both mechanical and physical properties are excellent. A glass fiber with a diameter of 10 microns has a tensile strength of 3600 MPa, which is equivalent to being able to withstand a tensile force of 360 kilograms per square millimeter of cross-sectional area. In addition to high strength, it has light weight, corrosion resistance, and insulation. , Easy to clean and many other advantages. Therefore, it is very suitable to use FRP material to make the insulating platform. The pulley chains and fixed pulleys required to adjust the left and right directions of the platform, as well as the guide rail pulleys and lifting pulleys required for platform lifting are made of nylon, which has the characteristics of high strength, insulation and light weight. The guide rail of the lifting fence insulation operation platform is made of aluminum alloy, which has low density but high strength, which is close to or exceeds high-quality steel, and has good plasticity and good corrosion resistance.

The lift-type fence insulation operating platform provided by the present invention has the following advantages:

The overall left and right rotation of the platform body and the mobile device is realized through metal fixed chains, pulley chains and supporting pulleys. The guide rails, guide rail pulleys, lifting ropes, lifting pulleys, lifting limiters and worm gear devices constitute the up and down lifting devices. Guide rail pulleys Clamping the guide rail can easily adjust the working height, and the guide rail can increase the stability of the pulley when adjusting the working height up and down. Through the adjustment of the worm gear device and the lifting pulley of the lifting rope, the insulating platform can realize the function of lifting up and down. Stoppers prevent mishandling of the platform. Therefore, on the premise of effectively protecting the safety of operators, the safe operating range is increased, and the height deficiency encountered in live working of general insulating operating platforms is overcome. The platform mobile device is made of aluminum alloy to reduce the overall weight and facilitate installation and disassembly.

The invention expands the scope of live work, solves practical production problems, has relatively small requirements on the environment, occupies a small space, and its structural design and device operation are relatively simple, and can be used in areas with harsh environments and complex terrains. It realizes the carrying out of live working in the environment with restricted terrain. In order to provide users with better services, ensure the safe and normal power supply of power supply lines, and avoid the adverse effects of power outages on power supply companies and power users. It can improve power supply reliability, electricity sales, improve industry service quality, and ensure uninterrupted power supply to customers.

Description of drawings

Fig. 1 is a structural schematic diagram of the lifting fence insulating operation platform of the present invention.

Fig. 2 is a schematic diagram of the back side of the guide rail of the lifting fence insulation operation platform of the present invention.

Fig. 3 is a schematic front view of the guide rail of the lifting fence insulation operation platform of the present invention.

Fig. 4 is a front view of the moving device of the lifting fence insulation operation platform of the present invention.

Fig. 5 is a side view of the moving device of the lifting fence insulation operation platform of the present invention.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a kind of lifting type fence insulation operation platform provided by the present invention, this platform comprises mobile device and is provided with the insulation platform body 1 of fence 1-1; Bracket 2; the up and down lifting device includes guide rail 3, worm gear device 4, pulley block, lifting rope 5 and lifting limiter 6; see Figure 2 and Figure 3, the front of guide rail 3 faces the insulation platform body 1, and the back faces the pole column, and Two rows of through holes 3-1 arranged at equal distances are correspondingly provided on the two sides; the worm gear device 4 is arranged at the bottom end of the guide rail 3, and the worm gear 4-2 is also provided with a joystick 13 extending to the outside of the guide rail. The worm gear device 4 can be rotated by the joystick 13; the pulley block includes a number of guide pulleys 7 fixed on the insulating platform support 2 and clamping the guide rail 3 and a number of lifting pulleys 8 passing through the lifting rope 5; one end of the lifting limiter 6 It is fixed on the insulating platform support 2, and the other end is fixed on the guide rail 3 with the through hole 3-1 on the side of the guide rail 3. The lifting limiter 6 can prevent platform misoperation; the insulating platform support 2 is arranged on the front of the guide rail 3, and Fixed with the insulating platform body 1; the insulating platform support 2 can move up and down along the guide rail 3 through the guide rail pulley 7 arranged on the upper and lower ends of the insulating platform support 2 facing the front of the guide rail 3, and the insulating platform support 2 is on both sides of its upper end and lower end. Fixing points are respectively provided at the insulating platform body 1, and the fixing points are respectively fixed firmly with the insulating platform body 1 by bolts and nuts; the guide rail pulley 7 clamps the guide rail 3 to facilitate the adjustment of the working height, and the guide rail 3 can make the guide rail pulley 7 in the Increase its stability when adjusting the working height up and down; some lifting pulleys 8 include the first lifting pulley 8-1 arranged on the worm screw 4-1 at the bottom end of the guide rail 3, the second lifting pulley 8-2 arranged at the center of the top of the guide rail 3 and The third lifting pulley 8-3 that is arranged on the top center of the insulation platform support 2; And bottom respectively be provided with two, two pulley chains 10 also are located at guide rail 3 tops and bottom respectively, and the two ends of every pulley chain 10 are respectively located at support pulley 9 both sides. See Figure 4 and Figure 5.

The guide rail 3 consists of two parallel rails 3-2.

The worm and gear device 4 drives the first lifting pulley 8-1 to rotate, and then drives the second lifting pulley 8-2 and the third lifting pulley 8-3 through the lifting rope 5 in turn. That is, the lifting pulley 8 passing through the lifting rope 5 through the adjustment of the worm gear device 4 can make the insulating platform realize the function of lifting up and down. Lifting rope 5 passes around first lifting pulley 8-1, second lifting pulley 8-2 and the 3rd lifting pulley 8-3 successively, and the other end of this lifting rope 5 is fixed on guide rail 3 tops.

The lift limiter 6 can be adjusted in position on the guide rail 3 by being fixed in different through holes 3-1.

The insulating platform support 2 is also provided with a block frame 12 that passes between the guide rail 3 rails 3-2 and blocks the guide rail 3 at the back of the guide rail 3 .

Some guide rail pulleys 7, wherein have two to be arranged on the insulating platform support 2 upper ends, have four to be arranged on the insulating platform support 2 lower ends.

Two guide rail pulleys 7 are arranged on the upper end of the insulating platform support 2 to cooperate with the inner sides of the two rails 3-2 of the guide rail 3 respectively, and four are arranged on the lower end of the insulating platform support 2, and each two are respectively on one side of the guide rail 3 track 3 The inside and outside of -2 cooperate with this track 3-2 with height; That is, the pulley block of the up and down lifting device is composed of 6 guide rail pulleys 7 clamping the guide rail 3 and 3 lifting pulleys 8 passing the lifting rope 5 in total.

The lengths of the metal fixed chain 11 and the pulley chain 10 can be adjusted. One end of the metal fixed chain 11 can be loosely opened, and the pulley chain 10 can be fastened by rotating the supporting pulley 9 . After the metal fixing chain 11 is loosened, the mobile device can be moved around the pole column through the pulley of the pulley chain 10 and the supporting pulley 9. After adjusting to a suitable position, the metal fixing chain 11 can be fastened to realize the overall fixing. .

The preferred material of the insulating platform body 1 is FRP, the preferred material of the guide rail 3 is aluminum alloy, and the preferred material of the pulley block, support pulley 9 and pulley chain 10 is nylon pulley. Among them, FRP, that is, epoxy glass cloth pipe, is mainly composed of glass cloth and epoxy resin plus coagulant. Its density is 1.5-2.0, which is 3-4 times lighter than steel, but its strength is 1.7 times higher than steel. Therefore, , excellent mechanical and physical properties. A glass fiber with a diameter of 10 microns has a tensile strength of 3600 MPa, which is equivalent to being able to withstand a tensile force of 360 kilograms per square millimeter of cross-sectional area. In addition to high strength, it has light weight, corrosion resistance, and insulation. , Easy to clean and many other advantages. Therefore, it is very suitable to use FRP material to make the insulating platform. The pulley chain 10 and the fixed pulley 9 required for the left and right direction adjustment of the platform and the guide rail pulley 7 and the lifting pulley 8 required for platform lifting are made of nylon, which has the characteristics of high strength, insulation and light weight. The guide rail 3 of the insulating operating platform for the lifting fence is made of aluminum alloy, which has a low density but a relatively high strength, which is close to or exceeds high-quality steel, and has good plasticity and good corrosion resistance.

The use process of the lift-type fence insulation operation platform of the present invention is as follows:

First, the electrician cooperates with each other at the appropriate position of the pole to tighten the metal fixed chain 11 and pulley chain 10, install the platform moving device on the pole column, and lower the upper and lower lifting devices to the bottom, and then cooperate with each other to insulate The platform body 1 is combined and installed on the moving device composed of the insulating platform bracket 2 and the guide rail 3, etc., and is firmly fixed by bolts and nuts.

Wherein, the left and right moving device of the lifting fence insulating operation platform of the present invention cooperates with the metal fixed chain 11, the pulley chain 10, and the supporting pulley 9 to fix the moving device and the insulating platform body 1 on the pole column. The main function of metal fixed chain 11 is to fix the insulating platform during live work to prevent it from rotating left and right. Now the pulley chain 10 and the supporting pulley 9 are in close contact with the electric pole column, which plays the role of supporting the whole insulating platform. And when the insulating platform needs to adjust the direction from left to right, it only needs to loosen the metal fixed chain 11 and then adjust it. At this time, the pulley chain 10 and the supporting pulley 9 are still in close contact with the pole post, which not only plays the role of supporting the entire insulating platform , the direction of the insulation platform can be adjusted left and right without causing the insulation platform to slide, and after the adjustment is completed, tightening the left and right moving devices will play a fixed role again, which is simple and effective.

The No. 1 electrician enters the insulating platform body 1 of the lifting fence insulating operation platform to perform live work, and the No. 2 electrician goes to the appropriate position under the lifting fence insulating operating platform, and adjusts the live working position of the No. 1 electrician by adjusting the upper and lower lifting devices.

When needing to adjust up and down, set aside the lifting limiter 6, turn the worm gear device 4 to drive the lifting pulley 3 to rotate, tighten or loosen the lifting rope 5, and make the insulating platform support 2 adjust up and down. After the adjustment, close the lifting limiter 6 to prevent misoperation of the platform. When adjusting the up and down lifting position, since there are 6 guide rail pulleys 7 clamping the guide rail 3, the upper 2 guide rail pulleys 7 are installed on the inner side of the guide rail 3, and the lower part has 2 pairs of 4 guide rail pulleys 7, and each pair of guide rail pulleys 7 is installed separately. The inside and outside of the guide rail 3 are at the same high side, while clamping the guide rail 3 to facilitate up and down, it can also play a role in stabilizing the insulating platform. The two guide pulleys 7 on the inner side of the upper part of the guide rail 3 bear the downward pull of the insulating platform. At the same time, the two guide pulleys 7 on the outer side of the lower part of the guide rail 3 bear the downward pressure of the insulating platform. All the downward pull and pressure are transmitted to the The guide rail 3 also acts on the electric pole post. The use of the upper and lower lifting devices enables the No. 1 electrician to be always within the effective protection range of the fence 1-1 during live work, avoiding the operation method of stepping on the fence 1-1 due to insufficient working height.

After the live work is completed and the fence insulation platform drops to the bottom, the No. 1 electrician leaves the insulation platform, and the No. 1 and No. 2 electricians cooperate with each other to dismantle the lifting fence insulation operation platform. The disassembly process is opposite to the installation process.

The safety precautions and measures for using the lifting fence insulation operating platform of the present invention are as follows:

1 Meteorological conditions

The invention should be used in good weather;

In case of thunder, rain, snow and fog, it is not allowed to carry out live work through this item, and it is not suitable to use it when the wind force is greater than level 5;

Construction should be stopped when the relative air humidity is greater than 80%.

2 Safety distance and effective insulation length

The invention is used as the main insulation, and it should be tested by shaking before operation, and the insulation resistance should not be lower than 700MΩ (electrode distance 2cm);

During live work, a safety distance of not less than 0.4m to the ground and not less than 0.6m to the adjacent phase conductors should be maintained.

Carry out following test to the lifting type fence insulation operation platform provided by the present invention:

1. Electrical test

That is, the power frequency withstand voltage test, the method is as follows:

During the insulation platform test, the part of the metal component in the insulation platform should be grounded with a metal wire, and the position of the insulation platform body 1 away from the metal part with the shortest effective insulation length (0.4 meters) should be wound with a metal wire as the high voltage end of the pressure. During the test, it is required that there is no breakdown, no flash burning, and no obvious heating. See Table 1 for the electrical test items, cycle and requirements of the insulation platform.

Table 1 The electrical test items, cycle and requirements of the insulation platform.

2. Mechanical test

When carrying out the mechanical strength test, the acting position of the load should be located at the outer end of the insulating platform body 1, and the direction is vertically downward. The static load test should be carried out on the insulation platform in the forward direction, 90 degrees to the left, 90 degrees to the right, rising to the upper part, and descending to the lower part. There should be no deformation or damage under the values listed in Table 2 for 5 minutes. See Table 2 for the mechanical test items, cycle and requirements of the insulation platform.

Table 2 The mechanical test items, cycle and requirements of the insulation platform.

The mechanical test items, cycle and requirements of the insulating platform are in accordance with the provisions of GB "Basic Technical Requirements and Design Guidelines for Live Working Tools" 5.2.3.

Rated design load requirements (Qrs) of manned means:

Human body weight is calculated according to the standard body weight of G1 = 700N per person (1kg≌10N in engineering);

The weight of carrying tools and supplies is calculated according to G2 = 150N per person;

The impact coefficient KC of the manned vehicle is generally taken as: 1.6 to 2.0 for vertical climbing and 1.5 for horizontal migration.

The load of the manned tool is calculated according to Qr = (700 + 150) n = 850n. Among them, n is the number of people allowed by the tool; the number of people allowed by this tool is 1 person, so Qr =850N.

The rated design load of the manned tool is calculated according to the following formula:

Qrs = KC × Qr (N), KC is 2.5 in the calculation of this tool.

Qrs = 2.5 × 850 = 2125 N≈212.5kg, according to the calculation, the test load of the insulation platform should be about 212.5kg.

At present, we carry out the mechanical static load test according to the load of 2400N, and carry out the load test of 90° rotation on both sides, rising to the upper part, and falling to the lower part, which lasts for 5 minutes without deformation or damage. Electrical test according to 0.4M, 45kV, 1min test passed, no heat, deformation and other phenomena.

The applicable operation items of the lifting fence insulation operation platform provided by the present invention are as follows:

Corresponding to the development and improvement of the present invention, taking into account the construction environment, a series of live work projects have been carried out in a targeted manner. For example, replace the 10kV self-falling fuse, remove and connect the 10kV lead wire, remove and connect the 10kV cable lead wire, remove and install the fault indicator, straighten the 10kV porcelain bearer, install a 10kV grounding ring, replace the 10kV strain insulator string, and remove foreign objects. Replace linear insulators and cross arms, etc.

The lifting type fence insulation operation platform provided by the present invention, on the basis of the prior art, adds the lifting function to the insulation operation platform, so that it has the ability to adjust the working position up and down, and designs the whole left and right adjustment device of the insulation platform, which is more With flexibility and reliability, it improves the safety of the insulation operation platform used in live work, is conducive to the development of live work, can improve the reliability of power supply, electricity sales, and improve the quality of industry services, ensuring uninterrupted power supply to customers, and improving The safety of the whole live working has a positive effect. At the same time, according to the relevant test regulations of live work, electrical tests and mechanical tests are regularly carried out on the drop fence insulation platform of the present invention.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. Various modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the above disclosure. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims (8)

1. A lift-type fence insulation operation platform, characterized in that the platform includes a mobile device and an insulation platform body (1) provided with a fence (1-1); The moving device includes an up and down lifting device, a left and right moving device and an insulating platform support (2); The up and down lifting device includes a guide rail (3), a worm gear device (4), a pulley block, a lifting rope (5) and a lifting limiter (6); The front side of the guide rail (3) faces the insulation platform body (1), the back side faces the electric pole column, and the other two sides are respectively provided with two columns of through holes (3-1) arranged at equal distances; The worm gear device (4) is arranged at the bottom end of the guide rail (3); The pulley block includes several guide rail pulleys (7) fixed on the insulating platform support (2) and clamping the guide rail (3) and several lifting pulleys (8) passing through the lifting rope (5); One end of the lifting limiter (6) is fixed on the insulating platform support (2), and the other end is fixed on the guide rail (3) in cooperation with the through hole (3-1) on the side of the guide rail (3); The insulating platform bracket (2) is arranged on the front of the guide rail (3) and fixed with the insulating platform body (1); The several lifting pulleys (8) include the first lifting pulley (8-1) arranged on the worm (4-1) at the bottom end of the guide rail (3), the second lifting pulley (8-1) arranged at the center of the top end of the guide rail (3) ( 8-2) and the third lifting pulley (8-3) arranged at the center of the top of the insulating platform support (2); The left and right moving device includes a supporting pulley (9), two pulley chains (10) and a metal fixed chain (11) arranged at the top of the guide rail (3); The supporting pulleys (9) are respectively arranged on the top and the bottom of the guide rail (3), and the two pulley chains (10) are respectively arranged on the top and the bottom of the guide rail (3). Each pulley chain (10) The two ends of are respectively located at support pulley (9) both sides. 2. The lifting fence insulation operation platform according to claim 1, characterized in that, the guide rail (3) is composed of two parallel rails (3-2). 3. The lifting fence insulation operation platform according to claim 1, characterized in that, the worm gear device (4) drives the first lifting pulley (8-1) to rotate, and then drives the lifting rope (5) in turn The second lifting pulley (8-2) and the third lifting pulley (8-3). 4. The lifting fence insulation operation platform according to claim 1, characterized in that, the lifting limiter (6) can be fixed on the guide rail (3) by being fixed in different through holes (3-1). Adjust the position. 5. The lifting fence insulation operation platform according to claim 1, characterized in that, the insulation platform support (2) is also provided with a rail (3-2) passing through the guide rail (3) , Clamp the retaining frame (12) of the guide rail (3) on the back of the guide rail (3). 6. The lifting fence insulation operation platform according to claim 1, characterized in that, among the plurality of guide rail pulleys (7), two of them are arranged on the upper end of the insulation platform support (2), and four are arranged on the insulation platform support (2) Lower end. 7. The lift-type fence insulation operation platform according to claim 6, characterized in that, the two guide rail pulleys (7) arranged on the upper end of the insulation platform support (2) are respectively connected with the two guide rails (3) The inner sides of the track (3-2) are matched, and four of them are arranged at the lower end of the insulating platform support (2), and each two are at the same height inside and outside the track (3-2) on one side of the track (3) respectively. 3-2) Coordination. 8. The lifting fence insulation operation platform according to claim 1, characterized in that the lengths of the metal fixing chain (11) and the pulley chain (10) can be adjusted.