A pulling device for carrying out emergency rescue operations

 

The invention relates to portable tools with power-driven and can be used when conducting rescue operations. The power device includes a control unit, protected from unauthorized operation, the low-pressure chamber and at least one high-pressure chamber containing a gas-forming product and gasovod to release gases. The low-pressure chamber is connected with the possibility of replacement with a high-pressure chamber and contains a piston associated with the working body. The working body can be made in the form of a set of interchangeable tools, and between the piston and the working body can be installed damper. A pulling device, which is Autonomous, small and fast, allows you to adjust the size of the working efforts and ensures safety in operation. 6 C.p. f-crystals, 2 Il.

The invention relates to portable tools with power-driven and can be used when conducting rescue operations.

The design and construction of several power devices require an external source of energy, whose energy by transmitting Ramachandran hydraulic, pneumatic and electric external energy sources.

Known power device CU3020 Dutch firm “Holmatro”. This power device is called the jaw cutter. It consists of a jaw of the cutter, pump and connecting hoses with a length of 3.6 m (see brochure of the firm “Holmatro”, S. 40, 41 and 45). Jaw cutter consists of a control unit, camera low pressure piston connected with the rod with a working body, and a working body in the form of blades. The hydraulic pump is connected by means of hoses through the control unit with low-pressure chamber. Running the pump from a manual drive or from the engine. The motor may be electric or gasoline.

The disadvantages of this power should be attributed to the lack of autonomy due to the presence of an external energy source and therefore the necessity of connecting hoses and cables (for pump motor). Therefore, to carry out rescue work can only close an external source of energy (of the order of 3 m when working with hand pump). In addition, when working from a manual pump necessary companion to work with the pump.

The presence of bulky auxiliary oborudovanie mass. If you are using a manual pump, for clamping blades without load it is necessary to make 11 pump cycles (oscillations of the handle of the pump), and under load is the number of cycles increases proportionally to the load. All this leads to an increase in working time required for performing working operations, for example, cutting.

Famous rescue scissors with fast pyrotechnic actuator development FGUP nowdays, “Raduga Vympel” (journal “Military parade”, September-October 1996, S. 122) adopted for the prototype. They consist of a body chamber with a low pressure piston connected to a rod of the working body in the form of blades, a control unit, self-contained power source in the form of a blank rifle cartridge HRP-7,62 inside a chamber of low pressure. The dimensions of the scissors form 99019080 mm and a weight of 15 kg Are these scissors only from a single cartridge, and then you must reload. The recharge time is the drain of the powder gases in the atmosphere. The time of cutting the roof of a car “Lada” - 5-6 minutes

The disadvantages of this design of power devices should include the fact that it Morelia, - it constantly and is determined by the weight of the powder sample blank rifle cartridge HRP-7,62. It is a standard cartridge and change the weight of the powder sample is not possible. In addition, the HRP cartridge 7.62mm ideal for small arms and, therefore, it can be used for criminal purposes in case of theft. So you want to keep these scissors as well as military small arms. This circumstance did not allow to establish serial production of such scissors with a pyrotechnic actuator. In addition, the device has a large size - its length is almost 1 m and does not allow other operations during the rescue operations, such as brakes and limb strain construction details.

The problem solved by the claimed invention is to develop a self-contained, compact, fast-acting power device that would allow to adjust the size of the working efforts and ensure safety in operation.

The problem is solved by the fact that the power device includes a control unit, protected from unauthorized operation, a working body connected with the piston located in quinia, containing gas-forming product and gasovod to bleed gases.

The working body is inseparably connected with the piston by means of any element that transmits force from the piston to the working body, for example, using a rod.

The control unit consists of a compact source of energy, remote control, switching hub and protective cover (case). Autonomous small energy source may be in the form of batteries, battery spring etc., the Remote control has the keyboard or controls and is equipped with a protection device against unauthorised intervention, for example, in the form of a lock, lock. The control unit performs the signal using electrical or mechanical impulse (shock striker) to the actuator, which may be in the form of electric igniter or primer. In the stowed position, the control unit disconnected from the power device, which ensures the safe operation of the power device. To bring the power of the device in action enough to remove the cover of the actuator of the high-pressure chamber and to dock a control unit that provides the minimum time transfer relocateamerica, the capsule, capsule sleeve or other means of initiation.

As the gas product can be used gunpowder with low temperature combustion or powder in the form of checkers. Varying the capacity of gas-forming product by changing its mass and type, you can adjust the size of the working efforts depend on the strength of the object and the ongoing effect upon him. The speed of movement of the working body is controlled by changing the kind of gas-forming product (change in the rate of burning) or by applying a booking coating on the surface of the powder checkers, or other gas-forming product, i.e., by changing the area of the burning surface of the powder (product). In addition, to adjust the magnitude of the load is possible, increasing the number of high-pressure cells, which are connected by means of a nozzle with low-pressure chamber with the possibility of replacement. Varying the power source of the gaseous products by changing the weight, type and number to be included in the work of the high-pressure cells, it is possible to adjust the magnitude of the cutting force depending on the thickness and strength of the cut element of the deformed structure.

In-camera high giving the sphere, resulting in a working body returns to its original position, which ensures safe operation of the power device and gives the possibility of using two or more cameras of high pressure to further regulate the amount of work and effort to use a power device without reloading repeatedly. On gazivode can be installed relief valve, and a device for the safe release of gases into the atmosphere, for example in the form of a crane.

The high-pressure chamber contains a protection mechanism against unauthorized operation and a source of gaseous products.

The mechanism of protection against unauthorized operation in the presence of one high-pressure chamber consists of a protective cover that covers the actuator located in the high pressure chamber.

If the power device comprises two or more cameras high pressure protection mechanism against unauthorized operation consists of two parts.

1st part is a solid drive, hermetically closing the nozzle of the high-pressure chamber, for example, in the outlet section of the nozzle. When there are two or more cameras, unused camera high pressure remains in not included SOS the additional node of the high-pressure chamber.

The execution of the power device with two or more high-pressure cells allows not only to further regulate the amount of work effort, but also to repeatedly use a power device without reloading.

The working body of the power unit can be made in the form of a set of interchangeable tools, which allows for any desired operation, such as cutting the deformed structural members, the movement of structural elements (brakes, rathgeb, tightening or loosening nuts, bolts, etc)

Between the piston and the working body can be a damper made of an elastic material, for example polyurethane. Install damper eliminates peak mechanical loads, which increases the service life of the device.

Presents a set of essential features allows to provide full autonomy, small size, adjustment of the working efforts and performance, minimum transfer time from marching position, compactness, small weight and safety in operation.

In Fig.1 shows a power device prior to the start of the works (in the original position).

In Fig.2 depicts the power 2 with a piston 3, connected with the rod 4, one or more high-pressure cells 5 with a source of gaseous products 6 and replaceable working body 7, which may be in the form of blades, sponges and other attachments designed for carrying out rescue operations. The high-pressure chamber 5 (one or more) directly connected to the low-pressure chamber 2 through the nozzle 8 through the gasket 9 and has a discharge gasovod 10, protected from unauthorized operation, consisting of two parts: a solid disk 11 and the protective cover 12 covering the Executive node 13. In the initial position of the disc 11 and the cover 12 is hermetically closed chamber 5.

To bring the power of the device in action is necessary to remove the cover 12 and podsticati to the Executive node 13, the control unit 1. After removing the lock from the control unit 1 control signal from the control unit 1, for example, in the form of electrical or mechanical impulse (shock striker), falls within the Executive node 13, which, in turn, activates the source of gaseous products 6. The Executive node 13 can be made in the form of electric igniter or primer, and a source of gaseous products 6 can be done the least 5, opens the nozzle 8 by a separation of the disk 11 and enters the chamber 2. There it acts on the piston 3 and moves it and the rod 4 relative to the camera 2, a conveying force on the working body 7. The working body 7, depending on destination, produces or cutting the deformed structural elements, or their movement (brakes, rathgeb), either tightening or loosening nuts, bolts, etc. In the case of multiple cameras 5 if you selected the high-pressure chamber of the other cameras remain uninvolved position. They only run from the control unit 1. The pressure of the gases inside the chamber 2 can not be reset to 0. This can be adjusted over a wide range of operating force on the rod by sequential switching of the required number of chambers 5. Return to the initial position of the working body 7 after the work is done by unscrewing the camera 5 by 1.5-2 turns. When gases on gazivoda 10 out of the cameras 2 and 5 into the atmosphere. Structurally gasovod 10 can be performed in a different location of the camera 5 or 2 and open, for example, using the crane, which is driven directly from the operator's hands or from the control unit 1.

In the stowed position is e (case).

Claims

1. Power unit comprising a control unit, protected from unauthorized operation, a working body connected with the piston located in the low-pressure chamber, which is connected, with the ability to replace, at least one high-pressure chamber containing a gas-forming product and gasovod to bleed gases.

2. The power device under item 1, characterized in that the gas product used gunpowder with a low combustion temperature.

3. The power device under item 1, characterized in that the gas product used gunpowder in the form of checkers.

4. Power device according to any one of paragraphs.1-3, characterized in that the mechanism of protection against unauthorized actuation includes a safety cover on the Executive mechanism of the high-pressure chamber.

5. Power device according to any one of paragraphs.1-3, characterized in that the mechanism of protection against unauthorized actuation includes a strong drive, hermetically closing the nozzle of the high pressure chamber, and a safety cover on the Executive mechanism of the high-pressure chamber.

6. Power device according to LoE device according to any one of paragraphs.1-6, characterized in that between the piston and the working body of the damper.

 

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