RU167382U1 - DESIGN FOR FASTENING PROTECTIVE WORKERS ON LONG-DIMENSIONAL HEIGHT SUPPORTS - Google Patents

Abstract

The design for fastening protective equipment working on long high-altitude supports can be used for fastening safety ropes, slings and other protective equipment on the supports of overhead communication lines and high-voltage power lines. The design consists of a metal clamp with a bolted connection, which can be made of two half rings tightened together. The clamp is securely fixed to the support. On the outer surface of the clamp there are plates for fixing the protective equipment directly. For this, the final sections of the plates are welded to the surface of the clamp perpendicularly. The free end portion of each plate is bent outward at an angle of 30 to 70 degrees and is made with an opening for securing the protective equipment. Preferably, at least four plates are provided for securing the protective equipment. The plates should be evenly distributed around the circumference of the clamp. In the event of a fall from a height, the worker hangs on safety elements. The design provides reliable safety for people working at height. 2 s.p. f-ly, 4 ill.

Description

The utility model relates to safety measures for people working at height, and more specifically to devices for attaching safety ropes, slings and other flexible elements designed to protect people from working at height from falling down, and can be used to attach these flexible safety elements on high-altitude long supports, mainly on the supports of overhead communication lines (VLS) and high-voltage power lines (VLE).

Maintenance and repair of VLS and VLE - an obligatory process in the operation of VLS and VLE. The easiest and safest way to service VLANs and VLE is using a car lift. But a car lift can not always drive over rough terrain to a support. Therefore, when climbing a support, stairs, claws or manholes are used. In accordance with the current rules on labor protection when working at heights when climbing to a support, it is necessary to use safety systems (GOST REN 363-2007. SSBT). The upper part of the VLS and VLE support in the Russian Federation is not equipped with rigid anchor points for attaching safety systems. At present, the fastening of safety systems is carried out using flexible anchor lines. The installation of flexible anchor lines on the upper end of the VLS and VLE support for attaching safety systems is not always a possible and convenient way to ensure the safety of work at heights. Sometimes the entire upper part of the support is occupied by all kinds of communication lines (power lines).

There is a known principle of securing a flexible anchor point to the supports, proposed on the Russian market by a number of companies offering safety systems for work at heights. In particular, this device is offered by SAFE-TEK (http://www.safe-tec.ru/products/zakhvaty/ Flexible anchor lines). The disadvantage for this technical solution is that the attachment of flexible anchor points on the supports of the VLANs and VLE is not always possible from a technical point of view. Namely:

- Some of the VLE poles at their upper point have an installed insulator and a power line, so it is technically impossible to put an anchor loop on such a pole.

- The VLS supports in the upper part have hooks for installing insulators and a traverse for fastening communication lines. When donning the anchor loop to the support, it slides onto the hook or yoke, which becomes the fulcrum. The hook and traverse are not designed for the load, which should be in accordance with the Rules on labor protection when working at an altitude of 22 kN (Order of the Ministry of Labor of Russia dated March 28, 2014 N 155n “On the approval of the Rules on labor protection at work at an altitude” // “Consultant plus” : Regional Information Center. Access mode: http://www.infocom.su. (Accessed: October 2, 2015). Order of the Ministry of Labor of Russia No. 383n dated June 17, 2015 "On Amending the Rules for Labor Protection under work at heights, approved by order of the Ministry of Labor and Social Protection of the Russian Federation of March 28, 201 4 g. No. 155n. ”Access mode: http://www.rosmintrud.ru/docs/mintrud/orders/417. (Date of access: 09/14/2015)).

- For supports that have multiple wires attached in different directions, there is the difficulty of dressing a flexible anchor loop, as well as the difficulty of removing this loop from the support after work.

- An amplifier is installed on the cable supports of the VLS in the upper part of the support. When putting on the anchor loop on the support, it slides onto the amplifier, which becomes the fulcrum. The amplifier mount is not designed for ultimate load, which should be in accordance with the Rules of 22 kN.

Therefore, in modern conditions, during the construction and reconstruction of VLS and VLE, there is a need to install rigid anchor points on the supports to secure the safety systems and ensure the safety of work at heights. (GOST REN 363-2007. SSBT "Personal protective equipment against falling from a height. Safety systems. General technical requirements").

Known support for mounting protective equipment for workers (SZR) when falling from a height (Utility Model Patent No. 55401, IPC E04G 21/32, publication date 10.08. 2006).

The first embodiment of a support for securing plant protection equipment when workers fall from a height according to RU 55401 contains a rod with a slot, an uneven rocker mounted in the slot with the possibility of rotation under the influence of gravity, as well as a device for compressing the support to the building structure and a device for securing the sling SZR. The slot is made at the first end of the rod, the second end of the rod is made with a threaded section. A device for tightening the support to the structural element of the building is made in the form of a sleeve with a support platform and a nut located on the threaded section of the second end of the rod. A device for attaching a SZR sling is made in the form of a plate with at least one hole for securing a SZR sling. The plate is rigidly connected to the nut. A section of the plate with an opening for securing the SZR sling is bent at an angle of 90-170 ° relative to the portion of the plate welded to the device for compressing the support to the building structure element.

According to the second embodiment, the device for fixing the plant protection system is made in the form of two plates. The second plate, like the first, is bent and has a hole for securing the plant protection system.

The construction of the support in both options allows for reliable fixing of the support in the wall or floor of the building and is effective for protection against the fall of builders working at height. The set of essential features of the second support option according to the patent RU 55401 is the closest set of essential features of the claimed utility model and is taken as a prototype.

The disadvantage of the prototype is that when fixing the structure to the support, it is necessary to violate its integrity. Violation of the structural integrity of the support of the VLS and VLE reduces the mechanical strength and reliability of the support, which is unacceptable.

The task to which the present utility model is directed is to ensure the safety of work at heights when climbing to VLANs and VLE.

The technical result, to which the present utility model is directed, is to create a simple and reliable design for fastening protective equipment for workers when working at height on the VLS and VLE poles, when securing which the integrity of the structure of the pylon is not violated.

The task and the technical result are achieved as follows.

The inventive design for attaching protective equipment working on long high-rise supports, as well as the prototype, contains a device for preloading the structure to the high-rise support and plates, the number of which corresponds to the number of fixed ends of the protective equipment. As in the design of the prototype, on the bent outward end portion of each plate, a hole is made for fixing the protective equipment.

In contrast to the prototype, the device for tightening the structure to the high-rise support is made in the form of a metal clamp with a bolted connection. One end section of each plate for fixing the protective equipment is welded perpendicular to the outer surface of the clamp. The second final section of the plate, made with a hole, is bent outward at an angle of 30 to 70 degrees. The specified angle allows you to freely secure the protective equipment and ensure the safety of workers in the fall.

The clamp can be made of two half rings, tightened together by means of bolted joints. It is preferable to have at least four plates for securing the means of protection, which are expediently distributed evenly around the circumference of the clamp.

In FIG. 1 shows a General view of the design for mounting protective equipment working on long high-rise supports.

In FIG. 2 is a side view of the claimed design.

In FIG. 3 shows a diagram of the fastening of the claimed design on a reinforced concrete support of a high-voltage line without strut.

In FIG. 4 shows a diagram of the fastening of the claimed design on a reinforced concrete support of a high-voltage line with a strut.

The design contains a metal clamp 1 with two eyes for tightening them with a bolt 2 and a nut 4 through the washer 3. When tightening the bolt connection, the structure is rigidly fixed to the support 6. The clamp can be made of two half rings for fixing on an existing support 6. On the clamp 1 ( Fig. 1, 2) along the outer circle at equal distances from each other, 4 plates bent at an angle of not less than 30 and not more than 70 degrees are fixed (welded) with holes for attaching working protective equipment. An angle from 30 to 70 degrees allows you to freely attach protective equipment and in the event of an employee's fall, ensure its safety. The number of plates is selected according to the number of plant protection products.

This design is installed when it is impossible to use a car lift for maintenance and repair of VLANs and VLE (rough terrain, remoteness and other reasons) and the impossibility of fastening flexible anchor lines when an employee lifts a support using claws.

The design for attaching protective equipment for workers working at height is installed on the supports of 6 overhead communication lines and power lines as a rigid anchor point for attaching safety systems, ropes, slings, cables. In FIG. Figure 3 shows the fastening of the structure to the VLE support. The metal clamp 1 with the plates 5 pre-welded to it is fixed on a wooden or reinforced concrete support 6. The support 6 has a traverse 7 in its upper part. If the support has a strut 8, then the structure is fastened to fasten the working protective equipment, as shown in FIG. four.

The design for mounting protective equipment working when performing work at height works as follows. Before lifting to the support 6 using claws or ladders, a safety system is attached to this device using a telescopic rod. The safety system consists of clamp 1, to which the safety cable is attached, and a grip. Capture is established on a safety cable (without a possibility of removal from a cable). The capture includes a locking device. A person climbing the support secures the grip through the safety cable into the hole of the plate 5. In the event of a person falling from the support, the locking device on the safety cable attached to the proposed structure prevents the person from falling to the ground. It slows down and a person hangs on a safety cable. This ensures the safety of support work.

Claims (3)

1. A design for fastening protective equipment working on long high-altitude supports, comprising a device for preloading the structure to a high-altitude support and plates, the number of which corresponds to the number of fixed ends of the protective equipment, and an opening for securing the protective device is made on the bent out end section of each plate, characterized in that the device for preloading the structure to the high-rise support is made in the form of a metal clamp with a bolt connection, while one end section of each plate d To fix the protective equipment, it is welded perpendicular to the outer surface of the clamp, and the other end section of the plate, made with a hole, is bent outward at an angle of 30 to 70 °. 2. The construction according to p. 1, characterized in that the clamp is made of two half rings, tightened together by means of bolted joints. 3. The construction according to p. 1, characterized in that it contains four plates for fixing the protective equipment, which are evenly distributed around the circumference of the clamp.