RU166371U1 - PORTABLE DEVICE FOR TESTS OF INSURANCE EQUIPMENT, PORTABLE AND FIRE STAIRS - Google Patents

Abstract

A portable device for testing safety equipment, portable and fire ladders, containing a rod in the form of a rectangular pipe with side supports, a rectangular stand mounted on the rod, with a manual winch placed on it, the cable of which is connected via a dynamometer to a hook (grab) on its other end, characterized in that the hand winch cable is placed inside the rod and the rack of rectangular cross section, respectively, while in the rod there is an inspection slot with the possibility of providing visual trol cable breakage (of rope), and the claimed device is further equipped with a test element for rifles designed as a movable (second) fastener (s) for mounting the rifle (s) placed on the bar.

Description

The utility model relates to tools that ensure the safe operation of safety equipment, portable and fire ladders, namely, devices for testing safety equipment, portable and fire ladders.

In accordance with the requirements of the Safety Rules for gas consumption and gas distribution systems PB-12-529-03, the Intersectoral rules for labor protection during operation of the gas facilities of POT R M-026-2003 organizations, the Safety Rules for gas distribution and gas consumption networks, in order to ensure safety, safety equipment, portable and fire escapes need periodic testing. Existing fire safety standards developed by the All-Russian Research Institute determine the test procedure for three types of stairs (stick ladders, storm stairs, retractable three-leg ladders) and equipment [Ministry of Internal Affairs of the Russian Federation, State Fire Service. Fire safety standards. NPB 171-98] and GOST R 53275-2009 “Fire fighting equipment. Manual fire ladders. General technical requirements. Test Methods. "

Guiding and regulatory materials determine the test scheme, but do not offer any device (stand) or other device for testing, limited only by the scheme of suspension of goods, the size of the test cargo and the exposure time.

From the investigated prior art identified stand for testing steel ropes [GOST 2387-80. Steel ropes. Endurance Test Method]. The essence of the method is that with the help of a suspended load, a tensile force is created on the sample. Bending of the sample occurs using interchangeable rollers. To rotate the drive drum, a crank mechanism is used, driven by an electric motor.

The disadvantage of the described device used in this method is the limited functionality due to the limited diameter of the test sample to 6.5 mm Thus, this device is not possible to use for testing life-saving ropes with a diameter of more than 6.5 mm., Used when performing gas hazardous work, provided for in accordance with PB 12-529-03.

A well-known stand for testing hoisting ropes for wear, described in the author's certificate for the invention of the USSR No. SU 1070454 "Running machine for testing hoisting ropes for wear" authors M.N. Khalfina et al., (Priority date 07/22/1982, IPC G01N 3/56), containing a bed with installed master and slave units covered by the tested rope, a tension mechanism designed to create static and dynamic loads on the rope, a device for changing the deviation angle and the drive associated with the host unit, the device for changing the deviation angle is made in the form of a screw mechanism kinematically connected with the slave unit, pivotally mounted on the frame with the possibility of rotation in a plane perpendicular to the plane oskosty rotation of the leading block.

The disadvantage of the described device is limited functionality due to the predominant modeling of wear of ropes intended for use in conditions of high abrasive pollution.

A well-known stand for testing steel ropes [Zhitkov D.G., Pospekhov I.T. "Steel ropes for hoisting machines." M .: Metallurgizdat, 1953, p. 35], the tensile force is created by the suspended load. The test sample is bent on five blocks and secured by a clip on the drive drum. To rotate the drive drum, a crank mechanism is used, driven by an electric motor.

The disadvantage of the described device is the limited test speed due to the arising inertia forces during the reverse-rotational movement, the large overall dimensions of the stand and the absence of the sale of these stands (devices).

A well-known stand for testing steel ropes [Zhitkov D.G., Pospekhov I.T. "Steel ropes for hoisting machines." M .: Metallurgizdat, 1953, p. 36-38], the tensile force is created by both a hydraulic jack and a suspended load. The test sample is bent on a large-diameter plug-in unit and secured by a clamp on the drive drum. To rotate the drive drum, a crank mechanism is used, driven by an electric motor.

The disadvantage of the described device is the limited test speed due to the arising inertia forces during the reverse-rotational movement, the large overall dimensions of the stand and the small number of bends of the sample for one rotation of the driving drum in one direction and also the lack of sale of the specified stand.

The closest in terms of the greatest number of coinciding features, technical nature and the achieved result to the claimed technical solution is a portable stand for testing safety and fire equipment described in the patent for utility model of the Russian Federation No. RU 102661 "Portable stand for testing safety and fire equipment" authors M. M. Skachkova et al., (Priority date 06/28/2010, IPC Е06С 9/00), representing a portable rod in the form of a rectangular pipe with side supports, a rectangular section fixed to the rod, with a manual winch placed on it, the cable of which is connected through a dynamometer with a hook (grab) at its other end, which is selected as a prototype.

The disadvantage of the stand described above is that it is intended (mainly) for testing portable ladders, safety and fire equipment (cables, belts), while the utility model does not mention special devices for fastening carbines, since there is a known test bench carbines is not intended. In addition, the known technical solution has a significant drawback, there is a likelihood of injury to workers during the test in the event of a cable break. The indicated drawback is very significant, as it leads to a violation of the labor protection rules. This drawback excludes the possibility of its use for testing safety equipment and portable and fire escape ladders and their access to operation to meet production needs.

The technical problem to which the claimed technical solution is directed is connected with the creation of a constructively new portable stand, the technical result of which is the possibility of safe, quick testing of various types of stairs, both portable and permanently fixed to buildings, as well as safety belts, cables, ropes and carabiners and issuing permits (test report) and their subsequent access to operation to meet the needs of production.

The claimed technical solution is illustrated by drawings, which shows a portable device for testing safety equipment, portable and fire ladders is illustrated by drawings, in FIG. (1-6) shows the types of the device as a whole and its elements when using it.

In FIG. 1 shows a stand assembly (general view);

In FIG. 2 - platform for emphasizing the lower ends of the stairs, top view;

In FIG. 3 - movable unit with a special device for testing a carbine;

In FIG. 4 - a method of installing a life belt during testing;

In FIG. 5 - a method of installing a rescue rope, rope, side view;

In FIG. 6 - a method of installing a rescue rope, rope, top view.

The technical problem to be solved is in a portable device for testing safety equipment, portable and fire ladders, containing a rod in the form of a rectangular pipe with side supports, a rectangular section fixed to the rod, with a manual winch placed on it, the cable of which is connected via a dynamometer to a hook (gripper) ) at its other end, is achieved by the fact that the hand winch cable is placed inside the rod and the rack of rectangular cross section, respectively, while the inspection slot is made in the rod, with the possibility of Strongly provide visual control cable break (ropes), thus, the claimed device is further equipped with an element for the test rifles, designed as a movable (second) fastener (s) for mounting the rifle (s) placed on the bar. To achieve the specified technical result, the portable device is equipped with a hollow rod of rectangular cross-section, with a made inspection slot, providing visual control of the cable break (rope).

At the same time, the rod is equipped with side supports spaced along the length, rigidly fixed to it by means of a hollow stand, with a hand winch attached to it, the cable from which is connected through a dynamometer to a hook (grab) at its other end. The cable is laid inside the bar, which eliminates the possibility of injury to the employee in the event of his (cable) breakage. At the same time, the portable device is equipped with an additional bar designed for attaching the device to a fixed object (for example, a car, the walls of a building, a gate support, etc.)

The hand winch is equipped with an automatic brake.

Distinctive features of the claimed device from the prototype is the presence of a special device for testing carbines, as well as the laying of the cable in the hollow part (inside) of the rod (1) which is equipped with an inspection slot (see Fig. 6, position 14.) of the device strut (2).

The portable device is detachable, contains the main rod 1, on which all the elements of the stand are installed, a vertical rack 2 (the preferred version of the rack), for fixing a manual winch 3 on it, while the winch is equipped with an automatic brake, for example, worm or ratchet. The winch cable 4 passes inside the hollow channels of the rod part 1 and the rack 2, is passed through the guide unit 5 and ends with a hook. The cable can be replaced with an equivalent flexible tape. The winch 3 is connected to the hook (not shown in Fig.) Through a cable 4 and a dynamometer 6. To give stability to the stand, supports 8, one or two, are installed on the main rod, depending on the type of work. One of the supports is equipped with a platform for stopping the lower ends of the stairs. All structural elements of the stand are put on the main rod and fixed on it with the help of couplings 9.

In addition to the above elements used in testing cables, ropes, belts, the stand includes an additional rod 10 for attaching a portable device to a stationary object (for example, a car, the walls of any building, gate support, etc.)

Design features and the principle of operation with a portable device are presented in figures 1-6.

After assembling the elements of the device on the main rod and stably placing it on a horizontal platform, the device is ready for operation.

Consider a portable device in action: the ladder under test is installed with its lower ends on the thrust pad 8 of one of the side supports of the main rod. The upper ends of this staircase abut against the vertical wall of the building. The rope hook is hooked to a step in the middle of the ladder. The cable passes through the mobile unit 7. By rotating the hand winch drum 3, the cable 4 is tensioned to the required value, which is monitored by a dynamometer 6. The ladder angle, load size and holding time, as well as the condition of the ladder after testing, for each type of ladder must correspond the requirements of the instructions.

Ropes, cables are tested, clinging to the differential pressure gauge and hook, previously mounted in the outer wall of the workshop. The portable device for stability, using the rod 10, is attached to the stationary object shown in FIG. 5.

The safety belt is tested, similarly to the testing of ropes, the cables also hook it to a differential pressure gauge and a hook pre-mounted in the outer wall of the workshop shown in FIG. four.

The carabiner test is carried out as shown in FIG. 3: the carabiner clings to the hook of the cable and to a special device for testing carabiners.

The execution of the cable of a manual winch located inside the rod and stand of rectangular cross section, respectively, while at the same time, an inspection slot is made in the rod, with the possibility of providing visual control of the cable break (rope), it allows safe, quick testing, and the placement of the cable in the rod prevents damage operator during testing, creating a protective cover. Additional equipment for testing carbines made in the form of movable (s) latch (s) for attaching carbine (s) located on the bar extends the functions of a portable device for testing safety equipment.

Claims (1)

A portable device for testing safety equipment, portable and fire ladders, containing a rod in the form of a rectangular pipe with side supports, a rectangular stand mounted on the rod, with a manual winch placed on it, the cable of which is connected via a dynamometer to a hook (grab) on its other the end, characterized in that the hand winch cable is placed inside the rod and the rack of rectangular cross section, respectively, while in the rod there is an inspection slot with the possibility of providing visual trol cable breakage (of rope), and the claimed device is further equipped with a test element for rifles designed as a movable (second) fastener (s) for mounting the rifle (s) placed on the bar.

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