CN103323224A - Falling prevention safety detection device - Google Patents

Abstract

The invention provides a fall prevention safety detection device, which includes: a base frame, a main column 1, a beam 4, an electromagnet control box 10 and an electric hoist 11; The base angle steel 7 and the steel beam 9; the main column 1 is vertically arranged on the steel beam 9, and the top is vertically connected with the cross beam 4; Directly above and parallel to the base angle steel 7; a vertical angle steel 6 is vertically set between the horizontal angle steel 3 and the base angle steel 7, and an inclined angle steel 8 is set between the horizontal angle steel 3 and the base angle steel 7. Compared with the prior art, the test device provided by the present invention has multiple functions, and can be used for static load and impact load tests of guide rails in vertical, horizontal and inclined directions; it is flexible and changeable, connected by bolts, and can be disassembled and assembled, expanded, moved, etc. The performance of different types of fall arrest devices can be tested.

Description

An anti-fall safety detection device

technical field

The invention relates to an anti-falling safety detection device, in particular to a detection device for detecting the anti-falling safety performance of a power transmission line.

Background technique

In recent years, with the continuous acceleration of China's electric power development, China's power grid has also developed rapidly. The operating voltage level of the power grid system has continued to increase, and the network scale has continued to expand. The country has formed the Northeast Power Grid, North China Power Grid, Central China Power Grid, East China Power Grid, and Northwest Power Grid. And China Southern Power Grid's six trans-provincial large-scale regional power grids, and basically formed a complete long-distance transmission grid. Power grid construction has become the main direction of my country's electric power construction. During the "Twelfth Five-Year Plan" period, my country's power grid investment scale continued to expand. By 2020, a unified strong smart grid will be fully built, and the goal of building a world-class power grid will be initially realized.

With the development and construction of my country's power grid, the maintenance and inspection of transmission towers are becoming more and more important. At present, during the operation and maintenance of domestic transmission line towers and high-altitude mobile operations, the staff need necessary protection measures against falling from high altitudes. The existing protection methods and programs Basically, it can meet the requirements for safety protection during high-altitude mobile operations, thus realizing the safety closed-loop protection of high-altitude operations.

High-altitude mobile operations on transmission lines mainly refer to human body displacement, upward or downward activities on transmission line iron towers and cement poles. For iron towers, the displacement is generally carried out by setting foot nails or climbing ladders; for cement poles, the displacement is generally carried out by climbing tools, and the anti-fall safety device is required to achieve real-time and full-range protection during the movement process. No matter whether you are performing high-altitude mobile operations on iron towers or concrete poles, you must be highly concentrated, down-to-earth, steady in your hands, and coordinate your climbing movements to prevent possible sudden hidden dangers.

In addition to the power industry, there are many other industries, such as construction, mining, municipal, railway, petroleum, chemical, metallurgy, post and telecommunications, and high-altitude service industries. However, there are still many deficiencies in the research on high-altitude fall prevention in these industries. Basically, it mainly emphasizes the correct use of seat belts, safety nets, setting up safety guardrails and avoiding high-altitude operations, etc., without emphasizing the protection during the movement.

At present, anti-fall safety devices are basically installed on domestic transmission lines. As accessories of transmission line towers, anti-fall safety devices can effectively prevent line maintenance and construction workers from falling accidents during the process of going up and down the tower. The operators provided reliable and practical safety protection equipment during the climbing process of the tower, and the installation of the anti-fall device regulated the operation behavior and improved the safe and civilized construction level of the operation site. Although the cost of line construction was increased, personal safety was greatly improved. Safety guarantee also fully embodies the people-oriented concept of spiritual civilization construction. The installation of anti-falling devices on transmission line towers has far-reaching social significance.

The results of 11 transportation inspection companies in some provinces, led by the Ministry of Infrastructure and the Ministry of Communication and Construction of the State Grid Corporation of China twice, showed that fall prevention devices were installed on the towers of UHV lines. Among them, a total of 1,284 sets of anti-fall devices were installed in the 1000kV Jindongnan-Nanyang-Jingmen AC project, and three provincial transportation inspection companies in Shanxi, Henan, and Hubei were responsible for the use and maintenance; a total of 3,149 sets of anti-fall devices were installed in the ±800kV Xiangjiaba-Shanghai DC project The equipment is operated and maintained by 9 provincial transportation and inspection companies in Hubei, Sichuan, Chongqing, Hunan, Anhui, Zhejiang, Jiaxing, Jiangsu and Shanghai. According to the survey and statistics of 11 provincial transportation inspection companies and the Shandong area, in the actual operation process, the fall prevention device is used on average 1 to 3 times a year, and the general tower inspection, monitoring work and maintenance process need to use the fall prevention device , which requires that these fall arrest devices are required to be in good condition.

However, some problems have also occurred during use of these anti-fall devices installed and used. For example, the self-locking device does not slide smoothly; after the guide rail is installed or operated for a period of time, it is prone to deformation, twisting, and unevenness, resulting in the failure of the self-locking device to pass smoothly; some steering gears are not flexible, and some self-locking devices are heavy. Increase the load and labor of workers; on some tower types, there is a K point that is not easy to pass through, and there is a potential danger of falling; the steel strand type self-locking device needs to be dismantled and installed at each support interval, which is inconvenient to use and reduces Operational efficiency; in the case of rainy and snowy weather, the track-type fall prevention device often cannot work normally because the track is covered with ice and is not easy to remove.

Although the domestic research and use of anti-fall devices is still in its infancy, due to actual needs, the number and frequency of use of anti-fall devices are becoming more and more frequent, and the safety of anti-fall devices is becoming more and more important. In order to effectively detect the performance of the anti-fall device, the inventors have designed a test device for detecting the performance of the anti-fall device for iron towers according to the performance test index of the normal tower anti-fall device, through long-term observation and research, for different types of anti-fall devices. The performance of the anti-fall device is tested, and at the same time, it can meet the requirements of the static load and impact load tests in the Q/GDW162-2007 standard of "Fall-proof device for pole and tower operation", so as to ensure that the anti-fall device can withstand the static load of 15kN and the impact test of 100kg load. Failure and yield deformation do not occur under these conditions.

Contents of the invention

The purpose of the present invention is to provide an anti-fall safety detection device, which can detect the performance of different types of anti-fall safety devices by disassembling, assembling, expanding, moving, etc., so that it can meet the requirements of Q/GDW162-2007 Standard static load, impact load and other test requirements, so as to ensure the safe and efficient use of fall arrest devices.

The object of the present invention is to adopt following technical scheme to realize:

The invention provides a fall prevention safety detection device, the detection device includes: a base frame, a main column 1, a beam 4, an electromagnet control box 10 and an electric hoist 11; the improvement is that the base frame includes parallel The base angle steel 7 and the steel beam 9 arranged on the foundation; the main column 1 is vertically arranged on the steel beam 9, and the top is vertically connected with the crossbeam 4; the horizontal angle steel 3 is vertically arranged on the main column through the connector 2 On the column 1, the horizontal angle steel 3 is located directly above the foundation angle steel 7 and parallel to the foundation angle steel 7; a vertical angle steel 6 is vertically arranged between the horizontal angle steel 3 and the foundation angle steel 7, and the horizontal angle steel 3 An inclined angle steel 8 is set between the base angle steel 7.

Wherein, the steel beams 9 are arranged equidistantly along the same axial direction, the number of the main columns 1 and the steel beams 9 is four, the number of the vertical angle steel 6 is one, and the number of the inclined angle steel 8 is for one.

Wherein, the bracket 5 is arranged on the beam 4 along the axial extension of the vertical angle steel 6 ; the electric hoist 11 is arranged on the bracket 5 .

Wherein, the electromagnet control box 10 is arranged between the vertical angle steels 6 at the angle between the main column 1 and the beam 4 .

Wherein, the weight of the electromagnet controlled by the electromagnet control box 10 is greater than or equal to 100 kilograms.

Wherein, the included angle between the inclined angle steel 8 and the basic angle steel 7 is 30-60 degrees.

Wherein, the distance between the horizontal angle steel 3 and the foundation angle steel 7 is greater than or equal to 1.5 meters, and the length of the horizontal angle steel 3 composed of three spans is greater than or equal to 15.6 meters.

Wherein, the horizontal angle steel 3 is provided with guide rails (steel strands) through clamps and hook hooks; a loading component is composed of a dynamometer and a steering pulley.

Wherein, the vertical angle steel 6 and the inclined angle steel 8 are respectively provided with guide rails; the guide rails of the vertical angle steel 6 and the inclined angle steel 8 are provided with lockers, connectors and safety ropes, which are composed of dynamometers and steering pulleys. Loading parts.

Wherein, the detection device is connected by bolts, and the detection device is galvanized for anticorrosion.

Compared with prior art, the beneficial effect that the present invention reaches is:

1. The anti-fall safety detection device provided by the present invention has multiple functions, and can be used for static load and impact load tests of guide rails in vertical, horizontal and inclined directions, and can meet the static load in the Q/GDW162-2007 standard of "fall prevention device for pole and tower operation" , impact load and other test requirements.

2. The anti-fall safety detection device provided by the present invention is flexible and changeable. It is connected by bolts and can detect the performance of different types of anti-fall devices by means of disassembly, assembly, expansion, and movement.

3. The fall prevention safety detection device provided by the present invention is compactly arranged, saves space, and fully utilizes the existing test site, which not only reduces the test cost, but also has better applicability.

4. The anti-fall safety detection device provided by the present invention adopts galvanized anti-corrosion treatment, which is not easy to rust and has a long storage time.

5. The anti-falling safety detection device provided by the present invention is easy to assemble, can be used repeatedly, and greatly improves work efficiency.

6. The anti-fall safety detection device provided by the present invention is designed according to the test bending resistance and impact capacity, so as to ensure that it will not be deformed and damaged in the 15kN static load and 100kg load impact test.

Description of drawings

Fig. 1 is: the schematic diagram of the model of the anti-fall safety detection device provided by the present invention;

Fig. 2 is: a structural schematic diagram of the anti-falling safety detection device provided by the present invention;

Fig. 3 is: A-A sectional view of the anti-falling safety detection device provided by the present invention;

Fig. 4 is a sectional view of B-B of the anti-fall safety detection device provided by the present invention;

Among them: 1. Main column; 2. Connector; 3. Horizontal angle steel; 4. Beam; 5. Support; 6. Vertical angle steel; 7. Foundation angle steel; 8. Inclined angle steel; 9. Steel beam; 10. Electromagnet Control box; 11. Electric hoist.

Detailed ways

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

This embodiment takes the fall prevention safety detection device as an example. As shown in Figures 1 to 4, the detection device provided by the embodiment of the present invention includes: a main column 1, a connecting piece 2, a horizontal angle steel 3, a beam 4, a bracket 5, a vertical Right angle steel 6, foundation angle steel 7, inclined angle steel 8, steel beam 9, electromagnet control box 10, electric hoist 11.

Wherein, the detection device is arranged on the horizontal ground, and a pedestal is provided on the horizontal ground, and the pedestal includes the foundation angle steel 7 and the steel beam 9 arranged in parallel on the foundation, and the steel beam 9 is arranged equidistantly; the main column 1 is vertically arranged Between the steel beam 9 and the beam 4; the horizontal angle steel 3 is connected to the main column 1 through the connector 2; the main column 1, the connector 2, the horizontal angle steel 3, the beam 4 and the base frame form a three-span angle steel frame, each Vertical angle steel 6 and inclined angle steel 8 are respectively arranged in a span; the two ends of vertical angle steel 6 and inclined angle steel 8 are respectively connected with horizontal angle steel 3 and foundation angle steel 7; the quantity of vertical angle steel 6 is one, and the number of inclined angle steel 8 The quantity is one, and two brackets 5 are respectively arranged on the beam 4 and along the extension line of the vertical angle steel 6 axis; the electric hoist 11 is arranged on the bracket 5, and is used for testing loading or lifting weights; the electromagnet The control box 10 is arranged on the beam 4, and is located at the angle between the main column 1 and the beam 4; the whole device is connected by bolts to form a frame.

Among them, the detection device is a three-span with a length of 15.6 meters, a width of 0.4 meters, a height of 1.95 meters, a total weight of 5 tons, and galvanized anti-corrosion treatment; it is designed according to the test bending and impact resistance, and a certain safety factor (2.5) is considered. Guaranteed to withstand 15kN static load, 100kg load impact test will not be deformed and damaged; can meet the relevant items of the performance test of the fall arrest device: locking, vertical guide rail static load, impact load test, horizontal guide rail (steel strand) vertical static load , Impact load test.

Horizontal guide rail test: the length of the horizontal angle steel 3 of the detection device is 15.6 meters, and the horizontal guide rail (steel strand) is installed on the horizontal angle steel 3 through clamps and hooks on the horizontal angle steel 3, and the steel strand is connected in the middle of each span The safety buckle and the connecting rope form the loading system through the dynamometer and the steering pulley; the electromagnet control box 10 is used to control the 100kg electromagnet, and the electric hoist 11 lifts the weight to a certain height and suddenly cuts off the power to make the weight Free fall, do horizontal guide rail (steel strand) impact test; the length of horizontal angle steel 3 can be adjusted according to the test requirements.

Vertical guide rail test: the vertical angle steel 6 set in each span can be used for vertical guide rail test to detect the requirements of 15kN static load and 100kg load impact test; install the guide rail on the vertical angle steel 6 and set the lock , Connector safety rope and other related components form a loading system through a dynamometer and a steering pulley; the locking, static load and impact tests are carried out respectively.

Inclined guide rail test: The inclined angle steel 8 set in each span can be used for the guide rail test in the inclined direction, and the method is the same as the vertical guide rail test.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the scope of the claims of the present invention.

Claims (10)

1. An anti-fall safety detection device, the detection device includes: a base frame, a main column (1), a beam (4), an electromagnet control box (10) and an electric hoist (11); it is characterized in that the The base frame includes foundation angle steel (7) and steel beams (9) arranged in parallel on the foundation; the main column (1) is vertically arranged on the steel beam (9), and the top is vertically connected with the beam (4) ; The horizontal angle steel (3) is vertically arranged on the main column (1) through the connecting piece (2), the horizontal angle steel (3) is located directly above the base angle steel (7) and connected to the base angle steel (7) ) parallel; a vertical angle steel (6) is arranged vertically between the horizontal angle steel (3) and the foundation angle steel (7), and an inclined angle steel (8) is arranged between the horizontal angle steel (3) and the foundation angle steel (7). 2. The fall prevention safety detection device according to claim 1, characterized in that, the steel beams (9) are arranged equidistantly along the same axial direction, and the number of the main column (1) and the steel beams (9) All are four, the number of the vertical angle steel (6) is one, and the number of the inclined angle steel (8) is one. 3. The fall prevention safety detection device according to claim 1, characterized in that, the bracket (5) is arranged on the beam (4) along the axial extension of the vertical angle steel (6); The electric hoist (11) is arranged on the support (5). 4. The fall prevention safety detection device according to claim 2, characterized in that, the electromagnet control box (10) is arranged between the vertical angle steels (6), between the main column (1) and The angle position of the beam (4). 5. The safety detection device for anti-falling according to claim 4, characterized in that the weight of the electromagnet controlled by the electromagnet control box (10) is greater than or equal to 100 kg. 6. The fall prevention safety detection device according to claim 1, characterized in that, the included angle between the inclined angle steel (8) and the basic angle steel (7) is 30-60 degrees. 7. The fall prevention safety detection device according to claim 1, characterized in that the distance between the horizontal angle steel (3) and the foundation angle steel (7) is greater than or equal to 1.5 meters, and the horizontal angle steel (3) is composed of three spans The length is greater than or equal to 15.6 meters. 8. The anti-falling safety detection device according to claim 1, characterized in that, the horizontal angle steel (3) is provided with a guide rail through a clamp and a hook passer; a loading part is composed of a dynamometer and a steering pulley. 9. The anti-fall safety detection device according to claim 1, characterized in that, the vertical angle steel (6) and the inclined angle steel (8) are provided with guide rails respectively; the vertical angle steel (6) and the inclined angle steel ( 8) There are lockers, connectors and safety ropes on the guide rails, and the loading parts are composed of dynamometers and steering pulleys. 10. The fall prevention safety detection device according to any one of claims 1-9, wherein the detection device is connected by bolts, and the detection device is galvanized for anticorrosion.

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