RU104930U1 - PNEUMATIC JACK - Google Patents

Abstract

 1. A pneumatic jack containing an internal elastic sealed working chamber, a cargo area having three layers, the first of which is made in the form of an upper wall of an internal elastic working chamber, a base having two layers, one of which is made in the form of a lower wall of an internal elastic working chamber and the second - in the form of an outer layer with lugs, an inlet / outlet system for the working gas, consisting of inlet and outlet valves mounted on the side wall of the elastic working chamber and made interaction a source of compressed working gas, characterized in that around the inner elastic sealed working chamber there is an external elastic sealed working protective chamber, the upper wall (cover) of which serves as the second layer of the cargo area, the third layer of the cargo area is made in the form of a fabric semi-rigid plate, motionless fixed between the upper wall of the outer elastic sealed working chamber and the upper wall of the inner elastic sealed working chamber, on the upper outer plane and a cover of the external elastic sealed working chamber, a set of flat polyurethane lei is fixedly fixed, which serves as the fourth protective layer of the cargo area, the base is additionally equipped with a third layer made in the form of a fabric semi-rigid plate located between the lower wall of the inner elastic working chamber and the lower wall of the outer elastic working chamber performing the function of the fourth (protective) layer, the outer layer of the base with lugs is made in the form of fixedly mounted on the bunk

Description

The utility model relates to hoisting-and-transport mechanical engineering, mainly for use in compact autonomous devices for lifting, supporting or moving vehicles, both during their repair and maintenance in a garage (depot, hangar), on the road, and off-road, for example , to remove the vehicle stuck in the mud, sand, marsh fluid or any similar weak bearing surface by the driver and passengers of the vehicle away from technical service centers vehicles or from residential settlements with the necessary human resources and science technical means.

In addition, the utility model can be used in various devices to save people from the rubble of buildings, from rubble in mines, or from / from cars in case of accident in an accident, etc.

There are various designs of devices - pneumatic jacks or hydraulic jacks with pneumatic drive for a variety of devices for servicing vehicles and for construction or rescue equipment (see, for example, AS USSR NN 988754, 988759, 1224253, 1323526, 1758297, RF patents for inventions NN 2016271, 2046225, 2046750, 2046751, 2047549, 2048429, 2049046, 2083478, 2098344, 2154751, 2311337, 2322383, 2334634, applications of the Russian Federation for inventions NN 2008101856, 2008115900, patent of the Russian Federation for utility model N 27IS9, application WO NIS 27649, 7900753, WO 2006053374, WO 2007050016, WO 2004101296, German patents NN 2614754, 3426966, French patent N 7 411001, EPO patent N 0088506, US patents NN 2007120102, 2008011989, 2008272351, 2010117039, 2010264386, 2495092, 3379411, 3990681, 4060170, 4542882, 4605203, 5441237, 6895648, UK patents NN 12691577, 13351776, 13551777, 13551577, and 13555177.

All of these known pneumatic devices have either insufficient reliability and a relatively small resource of work, or low-tech manufacturing and installation.

The closest solution to the technical nature and the achieved result from its use to the claimed solution is a known pneumatic jack according to WIPO application N W 2006/053374, 2006, containing:

internal elastic tight working chamber;

the upper cargo area, which consists of three layers: the first - in the form of the upper wall of the inner elastic working chamber, the second - in the form of a semi-rigid plate of PVC and the third - in the form of a cover of a protective "skirt" worn on top of the inner elastic working chamber; a base (lower supporting platform), consisting of two layers: the first - in the form of the lower wall of the inner elastic working chamber and the second - in the form of a layer with lugs made in the form of spikes;

an inlet / outlet system for the working gas (for example, air), consisting of a discharge (inlet) valve and an exhaust valve fixed to the side wall of the inner elastic working chamber.

This pneumatic jack, although it allows the vehicle (or other object) to be lifted to a height specified by the construction of the jack, however, the reliability of operation of such a jack, for example, in special equipment (military, for the Ministry of Emergencies, etc.) intended for use in extreme conditions, relatively low due to the design features of this jack, because during the lifting process the internal elastic working chamber (especially in the unprotected part under the "skirt") may burst either from unnoticed during overload time when pumping from the compressor with working gas or during an abnormal load of a lifted object (for example, when a heavy foreign object falls on it - a tree, debris, etc.), or from a puncture on the side of the chamber invisible in dirt with any sharp object located in the ground , in case of accidental obstruction of the side of the lifted object (including the vehicle).

This significantly limits the scope of application of pneumatic jacks of a similar design in difficult environmental conditions, in military events or in any other extreme conditions (for example, in man-made emergency situations) with a shortage of time for rescue operations.

The task to which the claimed utility model is directed is to significantly expand the functionality of the pneumatic jack by ensuring its reliable operation in any extreme conditions while providing a large technical resource.

This problem is solved using the technical result from the use of the proposed utility model, which consists in expanding the arsenal of existing technical equipment for a specific purpose, which can significantly increase reliability and ensure long-term operation of the pneumatic jack.

The technical result is

firstly, to increase the technical resource of reliable operation of the pneumatic jack while ensuring its high load capacity without increasing its dimensions due to a significant increase in the strength of the elastic sealed working chamber, as well as the upper cargo area and lower base;

secondly, in ensuring reliable fixation of the pneumatic jack relative to the lifted object and the soil due to the original shape of the outer layers of the upper cargo and lower supporting platforms.

The specified technical result is achieved by the fact that in a known pneumatic jack containing:

internal elastic tight working chamber,

a cargo area having three layers, the first of which is made in the form of the upper wall of the inner elastic working chamber,

a base having two layers, one of which is made in the form of the lower wall of the inner elastic working chamber, and the other is in the form of an outer layer with lugs,

a working gas inlet / outlet system consisting of a discharge (inlet) valve and an exhaust valve fixed to the side wall of the elastic working chamber and made to interact with a source of compressed working gas.

firstly, around the inner elastic sealed working chamber is an outer elastic sealed working protective chamber,

secondly, the second layer of the cargo area is made in the form of a fabric semi-rigid plate fixedly mounted between the upper wall of the internal elastic sealed working chamber and the upper wall of the external elastic sealed working protective chamber, in which the upper wall (cover) serves as the third layer of the cargo area,

thirdly, on the upper outer plane of the cover of the outer elastic sealed working chamber, a set of flat polyurethane lei is fixedly fixed, which serves as the fourth protective layer of the cargo area,

fourthly, the base is additionally provided with a third layer made in the form of a fabric semi-rigid plate located between the lower wall of the inner elastic working chamber and the lower wall of the outer elastic working chamber;

fifthly, the outer layer of the base with lugs is made in the form of a set of T-shaped sections of polyurethane redans fixedly fixed on the outer surface of the bottom cover of the outer elastic sealed working protective chamber;

sixthly, a set of base redans are located relative to each other, depending on the purpose of the pneumatic jack operation, either in the form of linear and parallel and perpendicular to each other linear elements, or with the arrangement of the set elements under the corner to each other with a pattern that resembles a car tire tread.

Introduction to the design of the pneumatic jack of new elements, as well as the special implementation, location and connection of existing and new elements of the jack, can significantly increase the efficiency of both the jack itself and the machine or unit in which this jack is present, in general.

The proposed utility model is illustrated by drawings, which show the following:

- figure 1 shows a General view of the proposed pneumatic jack in its original (deflated) state when connected to an air compressor;

- figure 2 shows a diagram of one of the possible embodiments of the proposed pneumatic jack in the context of showing at the bottom a set of redans installed by stiffeners outwards;

- figure 3 shows a diagram of a fully inflated proposed pneumatic jack with conditionally shown lei on the upper cargo area;

- figure 4 shows a diagram of a fully deflated proposed pneumatic jack with conditionally shown lei on the upper cargo area;

- figure 5 shows a diagram of one of the options for the location of polyurethane redans - "lugs" based on the proposed pneumatic jack;

- Fig.6 shows a diagram of another arrangement of polyurethane redans - "lugs" based on the proposed pneumatic jack;

- Fig.7 shows a portion of the redana - "lug" attached to the base of the proposed pneumatic jack.

The proposed pneumatic jack contains an internal elastic sealed working chamber 1, around which an external elastic sealed working protective chamber 2 is placed (see Figure 2).

The upper parts of the chambers form a cargo area having three layers, the first of which is made in the form of the upper wall (cover) of the inner elastic working chamber 1, the second layer is made in the form of a fabric semi-rigid plate 3, the third layer is made in the form of the upper wall (cover) of the outer elastic working chamber 2. In addition, on the upper outer plane of the outer elastic sealed working protective chamber 2, a set of flat polyurethane lei 4 / cm is fixedly fixed. Figure 1, 2, 3 / (performing the function of the fourth protective layer of the cargo area), made, for example, of the fender strips of the type PD-110, used to strengthen the elastic shells of inflatable boats.

The base has two layers, the first of which is made in the form of a lower layer of the inner elastic working chamber 1, and the second - in the form of an outer layer with lugs 5.

The working gas inlet / outlet system consists of a discharge (inlet) valve 6 and an exhaust valve 7 (for example, the type of valves used for the elastic shells of inflatable boats) mounted on the side walls of the elastic working chambers 1 and 2.

The base is additionally provided with a third layer, made in the form of a fabric semi-rigid plate 8, located between the lower wall of the inner elastic working chamber 1 and the lower wall of the outer elastic working chamber 2, which performs the function of the fourth protective layer of the base.

The outer (second) layer of the base with lugs 5 is made in the form of a set of T-shaped sections of polyurethane redans, for example, the type of redans used for air-cushion devices, fixed on the outer surface of the lower wall of the outer elastic sealed working protective chamber.

A set of polyurethane redans 5 (installed by stiffening ribs outward / see Figure 2 /), the bases are located relative to each other, depending on the purpose of the pneumatic jack, it is recommended to perform either (see Figure 3) in the form of parallel and perpendicular linear elements to each other, or ( see Figure 4) with the arrangement of the elements of the set at an angle to each other, in shape resembling a tread pattern of a car tire.

The proposed pneumatic jack is operated as follows.

Before starting work in the folded (deflated) form (see Figs. 1, 4), the jack is installed in the right place, taking into account the correct location of the cargo area and the base relative to the lifted object and the supporting surface of the soil or any supporting object.

Then (after closing the bleed valve 7) with the help of a hose 9 with a manometer 10, the inlet valve 6 is connected to a source of compressed gas 11, for example, to a pneumatic compressor or to a stationary automobile pump, etc. After this, the jack is pumped to the desired height. After lifting work, the jack is lowered by slowly pressing the drain valve button 7.

After this, the jack can be folded, releasing the remaining air and closing the bleed valve 7. After cleaning the jack from dirt and dust, it is again ready for further storage, transportation or, if necessary, for the next immediate use.

Using the proposed utility model allows you to:

1. Significantly expand the functionality of the pneumatic jack by ensuring its reliable operation in any extreme conditions while ensuring a large technical resource.

2. Significantly increase reliability and ensure long-term trouble-free operation of the pneumatic jack under any operating conditions due to a substantial increase in the strength of its elements with relatively small dimensions.

3. To ensure reliable fixation of the pneumatic jack relative to the lifted object and the soil due to the original shape of the outer layers of the upper cargo and lower supporting platforms.

Claims (3)

1. A pneumatic jack containing an internal elastic sealed working chamber, a cargo area having three layers, the first of which is made in the form of an upper wall of an internal elastic working chamber, a base having two layers, one of which is made in the form of a lower wall of an internal elastic working chamber and the second - in the form of an outer layer with lugs, an inlet / outlet system for the working gas, consisting of inlet and outlet valves mounted on the side wall of the elastic working chamber and made interaction a source of compressed working gas, characterized in that around the inner elastic sealed working chamber there is an external elastic sealed working protective chamber, the upper wall (cover) of which serves as the second layer of the cargo area, the third layer of the cargo area is made in the form of a fabric semi-rigid plate, motionless fixed between the upper wall of the outer elastic sealed working chamber and the upper wall of the inner elastic sealed working chamber, on the upper outer plane and a cover of the outer elastic sealed working chamber, a set of flat polyurethane lei is fixedly fixed, which serves as the fourth protective layer of the cargo area, the base is additionally equipped with a third layer made in the form of a fabric semi-rigid plate located between the lower wall of the inner elastic working chamber and the lower wall of the outer elastic working chamber performing the function of the fourth (protective) layer, the outer layer of the base with lugs is made in the form of fixedly mounted on the bunk the bottom surface of the lower wall of the outer elastic sealed working chamber of the set of T-shaped sections of polyurethane redans installed outward by stiffeners. 2. The pneumatic jack according to claim 1, characterized in that the set of base redans is located relative to each other in the form of linear elements parallel and perpendicular to each other. 3. The pneumatic jack according to claim 1, characterized in that the set of base redans is located at an angle to each other with a pattern resembling a tread of a car tire in shape.