CN204679238U - The pick-up unit of power construction seat belt hanger - Google Patents

Abstract

A detection device for a safety belt hanger for electric power construction. The safety belt hanger for electric power construction is a column-type fall prevention device. The device includes a composite insulating rod with a locking mechanism at the lower end. A suspension ignition suspension device with a safety belt is provided. The column-type fall prevention device is fixed on an I-shaped equipment base through the locking mechanism, and an electric hoist is installed in the middle of an upper end crossbeam to provide For the gantry frame supported by force, a well-shaped transfer attachment is placed horizontally on the cross brace in the middle of the supporting frame body on both sides, and a detachable I-shaped equipment base is fixed on the well-shaped transfer attachment; The I-shaped equipment base is used to install the maintenance platform and simulate the fixed bracket of the knife or switch; it has a simple structure, easy to use and install, and the stability of the equipment base is good, which can make the test compatible with other anti-drop impact tests. Greatly reduce equipment production costs and other characteristics.

Description

Detection device for safety belt hanger in electric power construction

technical field

The utility model relates to a detection device for a safety belt hanger in electric power construction, which belongs to the technical field of safety detection of electric power construction equipment.

Background technique

Among various accidents in the power system, the fall accident is one of the most important casualty accidents today. Therefore, ensuring the safety of construction workers working at heights is the top priority of safety production work.

In the "State Grid Corporation Electric Power Safety Work Regulations" (hereinafter referred to as "Safety Regulations"), there are corresponding strict regulations on high-altitude operations:

1) Any operation carried out at a height of 2m or more above the falling height reference plane shall be regarded as an operation at a height";

2) When working without scaffolding or on scaffolding without railings and the height exceeds 1.5m, safety belts should be used or other reliable safety measures should be taken;

3) Seat belts should be hung high and used low;

4) It is forbidden to hang on moving or unstable objects [such as isolating switch (knife switch) supporting insulators, porcelain cross arms, unfixed rotating cross arms, line post insulators, lightning arrester post insulators, etc.];

5) The installation, dismantling and use of scaffolding shall comply with the relevant regulations in the "Safety Regulations" and relevant national regulations.

It can be seen from the above-mentioned relevant clauses in the "Safety Regulations" that almost all the installation and maintenance of switches, switches, and lines in substations have been regarded as high-altitude operations. And there are a lot of work, which may be completed within 1 to several hours. If you use scaffolding to work, it will not only take a lot of time, but also have to go through cumbersome installation, acceptance, use, dismantling and other processes, which is slightly inconvenient. If you are not careful, it will bring new potential safety hazards; and the switch blades, switches, line cross arms, etc. lack components for firmly hanging the safety belt. Therefore, a new type of seat belt hanger came into being, and its official name is "single-column maintenance platform" - a column-type fall prevention platform that is fixed on a single equipment base during substation maintenance and used to hang safety belts or fall arresters. device (see Figure 1).

Recently, the quality of all kinds of seat belt hangers produced in China is uneven. Only by rigorous and scientific tests can safety accidents be prevented.

There are mainly the following difficulties in the detection of single-column maintenance platforms:

1) It cannot work alone, and needs to design a special equipment base and other professional supporting facilities;

2) High stability requirements. The base can withstand multiple impacts of at least 1000 kgf in a short period of time. As long as there is a slight deflection, it will lead to incorrect installation, excessive torque, and test failure. The simple structure cannot meet the test requirements. .

3) Compatible with other fall prevention tests, including the suspension device strength test and impact test, which require the use of a 100kg manikin, and the work intensity is relatively high. Consideration should be given to the cooperation between the devices to prevent mutual interference, as shown in Figures 2 and 3.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a simple structure, easy to use and install, good stability of the equipment base, can bear the impact torsion force of more than 1t, and can make the test and other anti-falling impact tests Compatible and cost-saving; under the premise of ensuring the quality of inspection, it is a detection device for electric construction safety belt hangers that can greatly reduce equipment production costs.

The purpose of this utility model is accomplished through the following technical scheme, a detection device of a safety belt hanger for electric power construction, the safety belt hanger for electric power construction is a column type anti-falling device, and the device includes a lower end with a The composite insulating rod of the locking mechanism is provided with a safety belt suspension ignition suspension device at the upper end of the composite insulating rod, and the column type fall prevention device is fixed on an I-shaped equipment base through the locking mechanism A gantry frame with an electric hoist installed in the middle of the beam at the upper end and provides force support for the equipment base. A detachable I-shaped equipment base is fixed on the attachment.

The I-shaped equipment base is a fixed bracket used to install the maintenance platform, simulating a switch knife or a switch. It is connected by three channel steels in the same plane to form an I-shape, and the two ends of the I-shape are arranged in parallel. Respectively detachably fixed on the two parallel support channel steels of the well-shaped transfer accessories.

The inside of the middle channel steel of the I-shaped equipment base is filled with two small pieces of small channel steel for increasing strength and welded together; It is formed by overlapping with at least two horizontal channel steels vertically connecting the middle of two supporting channel steels through screws, and the two ends of the well-shaped transfer attachment are fixed to the horizontal channel steel in the middle of the supporting frame bodies on both sides of the gantry frame by screws or bolts. Hold it up.

The utility model has the advantages of simple structure, convenient use and installation, good stability of the equipment base, can bear the impact torsion force of more than 1 ton, can make the test compatible with other anti-drop impact tests, and save costs; on the premise of ensuring the detection quality, It can greatly reduce the cost of equipment production and so on.

Description of drawings

Figure 1 is a schematic diagram of the structure of a single-column maintenance platform.

Figure 2 is a schematic diagram of the strength test of the single-column maintenance platform.

Figure 3 is a schematic diagram of the impact test of the single-column maintenance platform.

Fig. 4 is a schematic view of the front structure of the detection device of the present invention.

Fig. 5 is a schematic side view of the detection device of the present invention.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings: As shown in Figure 1, a detection device for a safety belt hanger for electric power construction described in the utility model, wherein the safety belt hanger for electric power construction is a column type anti-falling device The device comprises a composite insulating rod 2 provided with a locking device 1 at the lower end, and a suspension point or a suspension device 3 for a safety belt is provided at the upper end of the composite insulating rod 2 .

Figure 2 is a schematic diagram of the strength test of the single-column maintenance platform, which is to connect the weight 5 with the connecting rope 4 on the suspension point of the safety belt or the suspension device 3, and use the falling of the weight 5 to perform single-column maintenance. Strength test of maintenance platform 6.

Fig. 3 is the schematic diagram of the impact test of the single-column maintenance platform, which is connected to the dummy 7 with a connecting rope 4 on the suspension point or the suspension device 3 of the safety belt, and a wireless release device 8 is passed through the dummy above the dummy Connected with the lifting device 9, through the release of the wireless release device 8, the simulated person 7 falls, so as to perform the impact test of the single-column maintenance platform 6.

As shown in Figure 4, a hoisting device 9 (i.e. electric hoist) is installed in the middle of the beam 14 at the upper end of the gantry frame 13, and on both sides are support frames 15. The connecting accessories are erected on the cross braces 16 on both sides, and the upper supporting 11 of the connecting accessories is a detachable "I" shaped equipment base 10.

As shown in Fig. 5, the equipment base 10 is composed of a support base 17 and a load bearing base 18, which is welded into an "I" shape by three channel steels in the same plane, and the two ends are respectively fixed on the On the upper support 11 of the transfer accessory.

The load-bearing seat 18 of the I-shaped equipment base 10 described in the utility model is used to install the maintenance platform 6, and the middle is welded with two 500mm wide small channel steels as the reinforcing ribs 19; the "well" shaped adapter is composed of two A channel steel upper support 11 arranged in parallel and two horizontal channel steel lower supports 12 are lapped by screws, and the lower support 12 is welded on the cross support 16 in the middle of the support frame body 15 on both sides of the gantry frame 13 .

As shown in Figure 4, the utility model mainly includes a gantry, which mainly has 2 functions:

(1) Provide force support for the equipment base;

(2) Install lifting equipment such as electric hoist.

The detachable "H-shaped" equipment base is a fixed bracket simulating a knife or a switch, and is used for installing an inspection platform. The use of this special structure mainly has the following two functions:

(1) By welding, three channel steels are connected in the same plane to form an "I-shape", so that the torsion resistance of the channel steel in the axial direction is enhanced;

(2) Fill 2 pieces of small channel steel into the groove inside the structure and fully weld them to further increase the strength.

The "well-shaped" transfer attachment is composed of two upper supports with a length of about 5m and two lower supports with a length of 1.5m. Provide support for the equipment base on the lateral support of the rack.

The functions of the transfer accessories mainly include the following three points:

(1) Provide height. Make the base of the equipment more than 1.5m above the ground to simulate high-altitude operations;

(2) To bear the static load and impact load in the vertical direction;

(3) Cost savings. The small equipment base bears most of the force, which reduces the force of the large transfer accessories. In the test, only the detachable and replaceable equipment base may be damaged, thereby retaining the large transfer accessories.

First, install the "tic-tac-toe" add-on:

(1) Use two 1400 mm long long channel steels arranged in parallel, with φ12 adjustment holes with a spacing of 50 mm on the upper sides, and the lower sides are directly welded to the middle cross braces on both sides of the gantry frame.

(2) Connect two 5.2 m long horizontal channel steels with φ12 mounting holes on the side walls at both ends, connect them sideways between the two long channel steels, find a suitable position, and use 4 screws to connect them sideways to form a " Well-shaped" structure.

Second, install the "H-shaped" detachable equipment base:

(1) Open four φ12 mounting holes on the bottom of the channel steel on both sides of the equipment base;

(2) Put the equipment base on the "well-shaped" accessory, and open the installation hole at the corresponding part of the accessory;

(3) Connect the device base to the accessory with screws.

  The utility model has the following characteristics:

(1) The stability of the equipment base is good. The unique "I-shaped" internal reinforced closed structure can withstand the impact torsion force of more than 1t, ensuring that there is no visible deformation after repeated tests, and it is more stable than the actual equipment base used on site;

(2) The main components can be replaced. Since the "I-shaped" equipment base is fixed to the large channel steel with bolts, even if the impact test causes damage to the equipment base, it is only necessary to renew the small equipment base and continue the test, saving costs .

(3) The test is compatible with other drop protection tests. Due to the full consideration of other test facilities during the design, the cost of equipment production is greatly reduced on the premise of ensuring the quality of the test.

Claims (3)

1. the pick-up unit of power construction seat belt hanger, described power construction seat belt hanger is a pillar falling proof device, this device comprises the compound inslation bar that a lower end is provided with latch mechanism, the suspension igniting suspender of securing band is provided with in the upper end of this compound inslation bar, it is characterized in that described pillar falling proof device is fixed on an I-shaped equipment base by described latch mechanism, in the middle of one upper end crossbeam, electric block be installed and provide the portal frame of stressed support for equipment base, horizontal in stull in the middle of its supported on both sides support body have a groined type switching annex, and dismountable I-shaped equipment base is fixed with on described groined type switching annex.

2. the pick-up unit of power construction seat belt hanger according to claim 1, it is characterized in that described I-shaped equipment base be for installation and repairing platform, simulation plug-in strip or the fixed support of switch, it connects into I-shaped by three channel-section steels in same plane, and by I-shaped two ends be arranged in parallel channel-section steel be detachably fixed on respectively groined type transfer annex two parallel support channel-section steels above.

3. the pick-up unit of power construction seat belt hanger according to claim 2, is characterized in that the middle channel-section steel of described I-shaped equipment base is inner, inserts two fritters together soldered for increasing the small size channel-section steel of intensity; Described groined type switching annex is formed by screw overlap joint with at least two vertical horizontal channel-section steels be connected in the middle of two support channel-section steels by two support channel-section steels be arranged in parallel, and the two ends of described groined type switching annex are by screw or be bolted to above the middle stull of portal frame supported on both sides support body.