A pneumatic rescue device

Abstract

This utility model relates to a pneumatic rescue device, belonging to the field of rescue equipment technology, to solve the problem of rescuers carrying oxygen supply devices alone, which affects rescue efficiency in existing technologies. The pneumatic rescue device of this utility model includes a gas cylinder, a constant pressure valve, a bara valve assembly, an impact pneumatic unit, a breathing mask connected to the gas cylinder, and a tool unit connected to the impact pneumatic unit. The gas cylinder is connected to the impact pneumatic unit via pipeline; the constant pressure valve and the bara valve assembly are disposed on the connecting pipeline between the gas cylinder and the impact pneumatic unit; and the breathing mask is connected to the exhaust valve pipeline of the impact pneumatic unit. This utility model avoids the time wasted in retrieving oxygen supply devices and can effectively improve rescue efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rescue equipment technology, and in particular to a pneumatic rescue device. Background Technology

[0002] In emergency rescue operations such as coal mine accidents and earthquakes, trapped personnel may be trapped due to the collapse of buildings or other obstacles. The oxygen in the buried environment is limited, which can lead to life-threatening situations due to lack of oxygen.

[0003] In existing technologies, rescuers often need to carry their own oxygen supply devices to provide oxygen to trapped individuals, which adds to their burden and makes accessing the oxygen supply devices more difficult. Utility Model Content

[0004] Based on the above analysis, the present invention aims to provide a pneumatic rescue device to solve the problem that the efficiency of rescue is affected by rescuers carrying oxygen supply devices alone in the prior art.

[0005] The objective of this utility model is mainly achieved through the following technical solutions:

[0006] A pneumatic rescue device, characterized in that it includes an air cylinder, a constant pressure valve, a Bama valve assembly, an impact pneumatic unit, a breathing mask connected to the air cylinder, and a tool unit connected to the impact pneumatic unit.

[0007] The gas cylinder is connected to the impact pneumatic unit via a pipeline. The constant pressure valve and the barma valve assembly are located on the pipeline between the gas cylinder and the impact pneumatic unit. The breathing mask is connected to the exhaust valve of the impact pneumatic unit via a pipeline.

[0008] Furthermore, the impact pneumatic unit includes a cylinder body and an intake chamber, a piston chamber, and an exhaust chamber disposed within the cylinder body.

[0009] Furthermore, the impact pneumatic unit also includes a vent pipe, one end of which is connected to the barma valve assembly, and the other end is connected to an exhaust valve disposed in the exhaust chamber.

[0010] Furthermore, it also includes a switching assembly, which includes a normally open control switch for controlling the gas in the gas cylinder to enter the impact pneumatic unit and a working switch for controlling the exhaust valve. The normally open control switch is disposed between the constant pressure valve and the barma valve assembly, and the working switch is disposed in the air intake chamber.

[0011] Furthermore, the piston chamber includes a piston and a connecting end connected to the piston, the other end of which is connected to the tool unit.

[0012] Furthermore, the tool unit is threadedly connected to the connecting end.

[0013] Furthermore, the tool unit includes an impact hammer, an impact shovel, and a punching shear.

[0014] Furthermore, it also includes a lifting unit, which includes a lifting cylinder connected to the impact pneumatic unit.

[0015] Furthermore, the Bama valve assembly includes a Bama valve, a spring washer, and a connecting spring disposed between the Bama valve and the spring washer, the spring washer being disposed between the connecting spring and the impact pneumatic unit.

[0016] Furthermore, a carrying strap is provided on the gas cylinder.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] (1) The pneumatic rescue device of this utility model can provide oxygen to the trapped person by setting up an air cylinder and a breathing mask connected to the air cylinder, thereby effectively improving the survival rate of the trapped person. There is no need to carry an oxygen supply device separately, which reduces the burden on rescuers and avoids the waste of time caused by taking out an oxygen supply device, thus effectively improving rescue efficiency.

[0019] (2) The pneumatic rescue device of this utility model can avoid air pressure fluctuations and maintain pipeline pressure stability by setting a constant pressure valve and a bar valve assembly; by setting a tool unit including an impact hammer, an impact shovel and a cutting shear, it can realize the functions of breaking, hammering and anchoring or shoveling and cutting obstacles to complete the removal of obstacles.

[0020] (3) The pneumatic rescue device of this utility model can lift and move obstacles by setting up a lifting unit, thereby improving the applicability of the pneumatic rescue device and enabling the pneumatic rescue device to effectively rescue trapped people. Attached Figure Description

[0021] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0022] Figure 1 This is a schematic diagram of the overall structure of the pneumatic rescue device according to Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the Bama valve assembly in Embodiment 1 of this utility model;

[0024] Figure 3 This is a cross-sectional structural schematic diagram of the impact pneumatic unit of Embodiment 1 of this utility model;

[0025] Figure 4 This is a schematic diagram of the overall structure of the pneumatic rescue device according to Embodiment 2 of this utility model.

[0026] Figure label:

[0027] 1-Gas cylinder; 2-Constant pressure valve; 3-Barma valve assembly; 31-Barma valve; 32-Connecting spring; 33-Spring washer; 4-Switch; 41-Normally open control switch; 42-Working switch; 5-Impact pneumatic unit; 51-Cylinder body; 52-Ventilation pipe; 53-Inlet chamber; 54-Piston chamber; 541-Piston; 542-Connecting end; 55-Exhaust chamber; 6-Breathing mask; 7-Tool unit; 71-Impact hammer; 72-Impact shovel; 73-Impact shears; 8-Lifting unit; 81-Lifting cylinder; 82-Valve. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0029] Example 1

[0030] A specific embodiment of this utility model discloses a pneumatic rescue device, such as... Figure 1 As shown, the device includes a gas cylinder 1, a constant pressure valve 2, a barma valve assembly 3, an impact pneumatic unit 5, a breathing mask 6 connected to the gas cylinder 1, and a tool unit 7 connected to the impact pneumatic unit 5. The gas cylinder 1 is connected to the impact pneumatic unit 5 via pipeline. The constant pressure valve 2 and the barma valve assembly 3 are installed on the connecting pipeline between the gas cylinder 1 and the impact pneumatic unit 5. The constant pressure valve 2 is used to stabilize the output pressure of the gas cylinder 1 and avoid pressure fluctuations in the gas path. The barma valve assembly 3 is used to regulate the gas pressure from the gas cylinder 1 and maintain stable pipeline pressure. The breathing mask 6 is connected to the exhaust valve pipeline of the impact pneumatic unit 5, and the oxygen in the gas cylinder 1 can be delivered to the trapped person through the breathing mask 6.

[0031] Gas cylinder 1 and constant pressure valve 2 are existing technologies. For example, gas cylinder 1 can be a high-pressure oxygen cylinder with a filling pressure of 30MPa; constant pressure valve 2 can be an externally adjustable constant pressure valve made of 7075 aluminum alloy, which will not be described in detail here.

[0032] Preferably, a carrying strap (not shown in the figure) can be provided on the gas cylinder 1 to facilitate carrying by rescue personnel.

[0033] like Figure 2As shown, the Bama valve assembly 3 includes a Bama valve 31, a spring washer 33, and a connecting spring 32 disposed between the Bama valve 31 and the spring washer 33. The Bama valve 31 is pressed tightly against the end face of the pipeline interface by the elastic force of the connecting spring 32, thereby preventing high-pressure gas from leaking from the connection gap. The spring washer 33 is disposed between the connecting spring 32 and the impact pneumatic unit 5, and the spring washer 33 plays a role in isolating and protecting the impact pneumatic unit 5.

[0034] like Figure 3 As shown, the impact pneumatic unit 5 includes a cylinder 51 and an intake chamber 53, a piston chamber 54, and an exhaust chamber 55 disposed within the cylinder 51. A barmaid valve assembly 3 is disposed within the cylinder 51, and the cylinder 51 is connected to a constant pressure valve 2. The piston chamber 54 includes a piston 541 and a connecting end 542 connected to the piston 541. The other end of the connecting end 542 is connected to a tool unit 7. The piston 541 can reciprocate under air pressure, thereby causing the connecting end 542 to drive the tool unit 7 to move and process obstacles.

[0035] The cylinder block 51, intake chamber 53, piston chamber 54, and exhaust chamber 55 are existing technologies and will not be described in detail here. For example, the cylinder block 51 is made of medium carbon steel.

[0036] For example, tool unit 7 is threadedly connected to connection end 542.

[0037] Furthermore, the impact pneumatic unit 5 also includes a ventilation pipe 52, one end of which is connected to the barma valve assembly 3, and the other end is connected to an exhaust valve located in the exhaust chamber 55, thereby delivering the gas in the gas cylinder 1 to the breathing mask 6 through the exhaust valve.

[0038] For example, such as Figure 1 As shown, tool unit 7 includes an impact hammer 71, an impact shovel 72, and a punching shear 73, thereby enabling it to break, hammer-anchor, or shovel and shear obstacles.

[0039] like Figure 3As shown, it also includes a switch assembly 4, which includes a normally open control switch 41 and a working switch 42. The normally open control switch 41 is located between the constant pressure valve 2 and the barma valve assembly 3, and is used to control the gas in the gas cylinder 1 to enter the impact pneumatic unit 5. The working switch 42 is located on the air inlet chamber 53 and is used to control the exhaust valve of the impact pneumatic unit 5. When the tool unit 7 is used for hammering, chiseling, cutting, or other operations, the normally open control switch 41 is closed, and the working switch 42 is controlled to keep the exhaust valve closed, so that the gas in the cylinder 51 enters the piston chamber 54, and the piston 541 drives the tool unit 7 to perform hammering, chiseling, cutting, or other operations. When it is necessary to supply oxygen to the trapped person, the normally open control switch 41 is opened, and the working switch 42 is controlled to keep the exhaust valve open, so that the gas in the gas cylinder 1 flows into the breathing mask 6 through the ventilation tube 52.

[0040] For example, when the pneumatic rescue device performs operations such as hammering, shoveling, or shearing, the outlet pressure of the constant pressure valve 2 is adjusted to 3.0 MPa to 5.0 MPa; when the pneumatic rescue device supplies oxygen, the outlet pressure of the constant pressure valve 2 is adjusted to 0.15 MPa to 0.30 MPa.

[0041] This utility model's pneumatic rescue device, through the installation of an air cylinder 1 and a breathing mask 6 connected to the air cylinder 1, enables oxygen supply to trapped individuals, thereby effectively improving their survival rate. It eliminates the need for a separate oxygen supply device, reducing the burden on rescue personnel and avoiding the time wasted in retrieving the oxygen supply device, thus significantly improving rescue efficiency. The installation of a constant pressure valve 2 and a bara valve assembly 3 prevents air pressure fluctuations and maintains stable pipeline pressure. The tool unit 7, including an impact hammer 71, an impact shovel 72, and a cutting shear 73, enables the device to break, hammer, anchor, or cut / shear obstacles, thus clearing them.

[0042] Example 2

[0043] A specific embodiment of this utility model discloses a pneumatic rescue device, such as... Figure 4 As shown, the difference from Embodiment 1 is that it also includes a lifting unit 8 connected to the impact pneumatic unit 5, which is used to lift and move the obstacle.

[0044] The lifting unit 8 includes a lifting cylinder 81 and a valve 82. The lifting cylinder 81 is connected to the impact pneumatic unit 5, and the valve 82 is installed on the lifting cylinder 81 to adjust the pressure inside the lifting cylinder 81.

[0045] When the lifting unit 8 is used to lift and move an obstacle, the normally open control switch 41 is in the open state, and the control working switch 42 makes the exhaust valve open, so that the gas in the gas cylinder 1 pushes the lifting cylinder 81 to perform the lifting operation.

[0046] For example, when the lifting unit 8 is used to lift and move an obstacle, the outlet pressure of the constant pressure valve 2 is adjusted to 0.30MPa to 0.80MPa.

[0047] The pneumatic rescue device of this utility model, by setting up a lifting unit 8, can lift and move obstacles, thereby improving the applicability of the pneumatic rescue device and enabling it to effectively rescue trapped persons.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic rescue device, characterized in that, It includes a gas cylinder (1), a constant pressure valve (2), a Bama valve assembly (3), an impact pneumatic unit (5), a breathing mask (6) connected to the gas cylinder (1), and a tool unit (7) connected to the impact pneumatic unit (5); The gas cylinder (1) is connected to the impact pneumatic unit (5) through a pipeline. The constant pressure valve (2) and the barma valve assembly (3) are arranged on the pipeline between the gas cylinder (1) and the impact pneumatic unit (5). The breathing mask (6) is connected to the exhaust valve of the impact pneumatic unit (5) through a pipeline.

2. The pneumatic rescue tool according to claim 1, characterized in that The impact pneumatic unit (5) includes a cylinder (51) and an intake chamber (53), a piston chamber (54) disposed in the cylinder (51) and an exhaust chamber (55) disposed between the intake chamber (53) and the piston chamber (54).

3. The pneumatic rescue tool according to claim 2, characterized in that The impact pneumatic unit (5) also includes a vent pipe (52), one end of which is connected to the Bama valve assembly (3), and the other end is connected to an exhaust valve disposed in the exhaust chamber (55).

4. The pneumatic rescue tool of claim 3, wherein, It also includes a switch assembly (4), which includes a normally open control switch (41) for controlling the gas in the gas cylinder (1) to enter the impact pneumatic unit (5) and a working switch (42) for controlling the exhaust valve. The normally open control switch (41) is located between the constant pressure valve (2) and the bar valve assembly (3), and the working switch (42) is located in the air inlet chamber (53).

5. The pneumatic rescue tool of claim 4, wherein, The piston chamber (54) includes a piston (541) and a connecting end (542) connected to the piston (541), the other end of which is connected to the tool unit (7).

6. The pneumatic rescue tool of claim 5, wherein, The tool unit (7) is threadedly connected to the connecting end (542).

7. The pneumatic rescue tool according to claim 6, characterized in that The tool unit (7) includes an impact hammer (71), an impact shovel (72), and a punching shear (73).

8. The pneumatic rescue tool of claim 4, wherein, It also includes a lifting unit (8), which includes a lifting cylinder (81) connected to the impact pneumatic unit (5).

9. The pneumatic rescue tool of claim 1, wherein, The Bama valve assembly (3) includes a Bama valve (31), a spring washer (33), and a connecting spring (32) disposed between the Bama valve (31) and the spring washer (33), wherein the spring washer (33) is disposed between the connecting spring (32) and the impact pneumatic unit (5).

10. The pneumatic rescue tool according to any of claims 1-9, characterized in that A carrying strap is provided on the gas cylinder (1).

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