Backpack type multifunctional spraying device

The backpack multifunctional spray device that integrates high-pressure oxygen cylinders, pneumatic infusion pumps and air breathing components solves the problem of rescuers having to carry fire-fighting and air breathing devices separately, thus achieving safe rescue at the fire scene.

CN223416626UActive Publication Date: 2025-10-10SHAANXI RONGCHUANG SAFETY EMERGENCY IND RES INST CO LTD
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Patent Information

Application Number
CN202421921649.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-09
Publication Date
2025-10-10
Estimated Expiration
2034-08-09

AI Technical Summary

Technical Problem

In disaster relief scenarios, rescuers need to carry separate fire extinguishing and air breathing devices with existing backpack emergency equipment, which makes it impossible to use them simultaneously at the fire scene, endangering their lives.

Method used

A backpack multifunctional spray device is designed, which integrates a high-pressure oxygen cylinder, a pneumatic infusion pump, a spray gun and an air breathing assembly to provide fire extinguishing and oxygen supply. A check device is used to prevent the backflow of the agent, and a low-pressure alarm is equipped to monitor the oxygen level.

Benefits of technology

It achieves the simultaneous provision of fire extinguishing and oxygen supply at the fire scene, ensures the safety of rescue workers, avoids the hazards of insufficient oxygen, and enhances the practicality and safety of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a backpack type multifunctional injection device, which belongs to the technical field of backpack type emergency equipment and comprises a liquid storage barrel, a high-pressure gas cylinder is arranged on one side of the liquid storage barrel, and a medium-pressure output pipe is arranged at the bottom of the high-pressure gas cylinder. According to the backpack type multifunctional spraying device, compressed air is conveyed to the pneumatic liquid conveying pump through the high-pressure gas cylinder, so that the pneumatic liquid conveying pump is driven to spray out an agent in the liquid storage barrel through the spraying gun, power for spraying fire extinguishing is provided, and backflow of the agent is prevented through the non-return device; therefore, it is ensured that the liquid storage barrel is in a non-pressure-storage state all the time, operation is safe and reliable, gas needed by breathing of emergency rescue workers is provided through the carried air breathing assembly, the gas in the high-pressure gas cylinder is monitored in real time through the low-pressure alarm, the emergency rescue workers are reminded in time, and the safety of emergency rescue is improved. And the situation that life safety of emergency rescuers is endangered due to insufficient air flow in the emergency rescue process is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the knapsack type emergency equipment, concretely is a knapsack type multifunctional injection device. BACKGROUND

[0002] The knapsack type emergency equipment is a portable equipment specially designed for coping with emergency situations, and the design concept mainly is convenient to carry and operate to adapt to various complex rescue environments, and the equipment usually includes various subsystems, such as a knapsack fixing system, a loading system and an external hanging system, to ensure that the user can effectively carry out rescue work in various emergency situations, the knapsack fixing system can ensure that the equipment is combined with the human body comfortably, and force is reasonably distributed, the loading system is used to load necessary rescue tools and materials, and the external hanging system can increase the load space, and more equipment or materials can be conveniently carried, wherein the knapsack type water mist fire gun is also a kind of knapsack type emergency equipment, which uses high-pressure water mist to extinguish fire, and can quickly respond to fire and effectively control the fire.

[0003] At present, in the prior art, the knapsack type emergency equipment needs to be used independently when the emergency rescue personnel enters the disaster site, and the disposal equipment and the protective equipment need to be used independently, in the disaster scene, the situation is extremely urgent, and it is a burden for the emergency rescue personnel to carry one device, so that the rescue personnel cannot carry and use the positive pressure air breathing device after entering the fire scene, and the toxic and harmful gases in the fire scene will directly threaten the life safety of the rescue personnel, therefore, the knapsack type multifunctional injection device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a knapsack type multifunctional injection device, which has the advantages of providing power for injection and extinguishing fire and providing air for the emergency rescue personnel to breathe, solves the problem that it is a burden for the emergency rescue personnel to carry one device in the disaster scene, the rescue personnel cannot carry and use the positive pressure air breathing device after entering the fire scene, and the toxic and harmful gases in the fire scene will directly threaten the life safety of the rescue personnel.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a knapsack type multifunctional injection device, comprising a liquid storage barrel, a high-pressure oxygen cylinder is arranged on one side of the liquid storage barrel, and a medium-pressure output pipe is arranged at the bottom of the high-pressure oxygen cylinder.

[0006] One end of the medium-pressure output pipe is fixedly connected to a pneumatic infusion pump, and one end of the pneumatic infusion pump is fixedly installed with a spray gun for spraying fire extinguishing agent. A check device is connected between the medium-pressure output pipe and the spray gun to prevent the fire extinguishing agent from flowing back. The medium-pressure output pipe is connected to an air breathing assembly, and one end of the high-pressure oxygen cylinder is fixedly installed with a pressure gauge, and a low-pressure alarm for reminding of insufficient oxygen content is fixedly installed on one side of the pressure gauge.

[0007] Furthermore, a support plate rack is fixedly installed on the bottom of the liquid storage barrel, a sponge pad for protecting the back of the emergency rescuer is fixedly installed on the back of the support plate rack, and two straps with one end passing through the sponge pad are fixedly installed on the back of the support plate rack.

[0008] Furthermore, the high-pressure oxygen cylinder is fixedly installed on one side of the liquid storage barrel, the medium-pressure output pipe is fixedly connected to the high-pressure oxygen cylinder, and a high-pressure shut-off valve and a pressure reducing valve are fixedly installed on one end of the high-pressure oxygen cylinder.

[0009] Furthermore, the spray gun includes a gun body and a connecting tube, the gun body and one end of the connecting tube are fixedly connected, one end of the connecting tube is fixedly connected to the pneumatic infusion pump, and a connecting pipe is fixedly installed between the pneumatic infusion pump and the liquid storage barrel.

[0010] Furthermore, the non-return device includes a return pipe and a non-return valve, the non-return valve is fixedly installed on the return pipe, and the return pipe is fixedly connected to the connecting pipe and the medium-pressure output pipe respectively.

[0011] Furthermore, the air breathing assembly includes a breathing mask and an oxygen pipe, the oxygen pipe is fixedly connected to the breathing mask, one end of the oxygen pipe is fixedly connected to the medium-pressure output pipe, and a rope loop is fixedly installed on the breathing mask.

[0012] Furthermore, a plurality of locking bolts are inserted into the support frame, one end of the locking bolt passes through the support frame and extends to the liquid storage barrel, the locking bolt is threadedly connected to the liquid storage barrel, and a sealing cover is threadedly connected to the liquid storage barrel.

[0013] Furthermore, the back of the support frame is hinged with four connecting rings, one end of the two straps is respectively connected to the four connecting rings, and four rectangular grooves are opened on the back of the sponge pad, and the two straps respectively pass through the two rectangular grooves on the same side.

[0014] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0015] The backpack multifunctional spray device is provided with a high-pressure oxygen cylinder to deliver compressed air to the pneumatic infusion pump, thereby driving the pneumatic infusion pump, and using the pneumatic infusion pump to push the medicine inside the liquid storage barrel out through the spray gun, thereby providing power for spraying and extinguishing the fire, and using a check device to prevent the medicine from flowing back, thereby ensuring that the liquid storage barrel is always in a non-storage state, and the operation is safe and reliable. In addition, the air breathing component carried is used to provide the emergency rescuer with the oxygen needed for breathing, and the low-pressure alarm is used to monitor the oxygen inside the high-pressure oxygen cylinder in real time, and to promptly remind the emergency rescuer to avoid insufficient oxygen during the rescue process that endangers the life safety of the emergency rescuer, thereby enhancing the practicality of the backpack multifunctional spray device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Fig. 1 This is a schematic diagram of the structure of the utility model;

[0017] Fig. 2 This is a front view of the liquid storage barrel of the utility model structure;

[0018] Fig. 3 It is a three-dimensional schematic diagram of the structural support frame of the utility model.

[0019] In the figure: 1. Liquid storage barrel; 2. High-pressure oxygen cylinder; 3. Medium-pressure output pipe; 4. Pneumatic infusion pump; 5. Spray gun; 6. Check device; 7. Air breathing assembly; 8. Pressure gauge; 9. Low-pressure alarm; 10. Pallet rack; 11. Sponge pad; 12. Shoulder strap. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figs. 1 to 3 In this embodiment, a backpack multifunctional spray device includes a liquid storage barrel 1, a high-pressure oxygen cylinder 2 is provided on one side of the liquid storage barrel 1, a medium-pressure output pipe 3 is provided at the bottom of the high-pressure oxygen cylinder 2, the high-pressure oxygen cylinder 2 is fixedly installed on one side of the liquid storage barrel 1, the medium-pressure output pipe 3 is fixedly connected to the high-pressure oxygen cylinder 2, and a high-pressure shut-off valve and a pressure reducing valve are fixedly installed at one end of the high-pressure oxygen cylinder 2.

[0022] Example 1: Please refer to Figs. 1 to 3In this embodiment, one end of the medium-pressure output pipe 3 is fixedly connected to the pneumatic infusion pump 4, and one end of the pneumatic infusion pump 4 is fixedly installed with a spray gun 5 for spraying the fire extinguishing agent. The spray gun 5 includes a gun body and a connecting pipe. The gun body and one end of the connecting pipe are fixedly connected. One end of the connecting pipe is fixedly connected to the pneumatic infusion pump 4. A connecting pipe is fixedly installed between the pneumatic infusion pump 4 and the liquid storage barrel 1 to facilitate the flow of the fire extinguishing agent in the liquid storage barrel 1 into the spray gun 5. A check device is connected between the medium-pressure output pipe 3 and the spray gun 5 to prevent the fire extinguishing agent from flowing back. 6, the non-return device 6 includes a return pipe and a non-return valve, the non-return valve is fixedly installed on the return pipe, the return pipe is fixedly connected to the connecting pipe and the medium-pressure output pipe 3 respectively, to prevent the fire extinguishing agent from flowing back into the medium-pressure output pipe 3, the medium-pressure output pipe 3 is connected to an air breathing assembly 7, providing the required oxygen inhalation structure for emergency rescuers, a pressure gauge 8 is fixedly installed on one end of the high-pressure oxygen cylinder 2, and a low-pressure alarm 9 for reminding of insufficient oxygen content is fixedly installed on one side of the pressure gauge 8, so as to detect the oxygen content in the high-pressure oxygen cylinder 2.

[0023] Among them, the air breathing component 7 includes a breathing mask and an oxygen pipeline. The oxygen pipeline is fixedly connected to the breathing mask, one end of the oxygen pipeline is fixedly connected to the medium-pressure output pipe 3, and a rope loop is fixedly installed on the breathing mask to facilitate emergency rescuers to wear the breathing mask and use the oxygen pipeline to inhale oxygen.

[0024] By adopting the above technical solution, the stop valve on the high-pressure oxygen cylinder 2 is opened, and the high-pressure air is reduced in pressure by the pressure reducer and then enters the air breathing component 7 and the pneumatic infusion pump 4 through the medium-pressure output pipe 3, so that it is convenient for the staff to use the air breathing component 7 to provide the oxygen needed in the fire rescue process. The compressed air is passed into the pneumatic infusion pump 4 to start the pneumatic infusion pump 4, and the pneumatic infusion pump 4 is used to extract the fire extinguishing agent inside the liquid storage barrel 1, and then the spray gun 5 is used to spray it out to extinguish the fire, so that the liquid storage barrel 1 is always in a non-pressure storage state, thereby ensuring that the liquid storage barrel 1 operates safely and reliably in a high-temperature environment. At the same time, the check device 6 can be used to prevent the premixed liquid from flowing back into the air breathing component 7.

[0025] Example 2: Please refer to Figs. 1 to 3In the embodiment, the bottom of the liquid storage barrel 1 is fixedly provided with a supporting plate frame 10, a plurality of locking bolts are inserted into the plate frame 10, one end of the locking bolts penetrates through the plate frame 10 and extends to the liquid storage barrel 1, the locking bolts are threadedly connected with the liquid storage barrel 1, the liquid storage barrel 1 is threadedly connected with a cover, the installation of the liquid storage barrel 1 and the plate frame 10 is facilitated, the back of the plate frame 10 is fixedly provided with a sponge pad 11 for protecting the back of the emergency rescuer, the back of the emergency rescuer is protected, and friction injury is avoided, the back of the plate frame 10 is fixedly provided with two back straps 12 penetrating through the sponge pad 11, the back of the plate frame 10 is hingedly provided with four connecting rings, one end of the two back straps 12 is connected with the four connecting rings respectively, the back of the sponge pad 11 is provided with four rectangular grooves, and the two back straps 12 penetrate through the two rectangular grooves on the same side respectively, so that the emergency rescuer can carry the plate frame 10 and the back straps 12.

[0026] The above technical scheme realizes that the emergency rescuer can carry the liquid storage barrel 1 and the high-pressure oxygen cylinder 2 through the plate frame 10 and the back straps 12, compressed air is stored in the high-pressure oxygen cylinder 2, the stop valve on the high-pressure oxygen cylinder 2 is opened, and the carrying of the backpack multifunctional spraying device by the staff is facilitated.

[0027] The working principle of the above embodiment is as follows:

[0028] In use, the emergency rescuer can carry the liquid storage barrel 1 and the high-pressure oxygen cylinder 2 through the plate frame 10 and the back straps 12, compressed air is stored in the high-pressure oxygen cylinder 2, the stop valve on the high-pressure oxygen cylinder 2 is opened, high-pressure air enters the air breathing assembly 7 and the pneumatic infusion pump 4 through the pressure reducer after pressure reduction through the medium-pressure output pipe 3, so that the staff can use the air breathing assembly 7 to provide oxygen needed in the fire rescue process, compressed air is introduced into the pneumatic infusion pump 4, the pneumatic infusion pump 4 is started, the fire extinguishing agent in the liquid storage barrel 1 is pumped out through the pneumatic infusion pump 4, and then the fire extinguishing agent is sprayed out through the spraying gun 5, so that the liquid storage barrel 1 is always in a non-pressure storage state, thereby ensuring the safe and reliable operation of the liquid storage barrel 1 in a high-temperature environment, and the backflow of the premixed liquid into the air breathing assembly 7 is avoided through the check device 6.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A backpack multifunctional spraying device, comprising a liquid storage tank (1), characterized in that: A high-pressure oxygen cylinder (2) is provided on one side of the liquid storage barrel (1), and a medium-pressure output pipe (3) is provided at the bottom of the high-pressure oxygen cylinder (2); One end of the medium-pressure output pipe (3) is fixedly connected to a pneumatic infusion pump (4), one end of the pneumatic infusion pump (4) is fixedly mounted with a spray gun (5) for spraying a fire extinguishing agent, a check device (6) for preventing the fire extinguishing agent from flowing back is connected between the medium-pressure output pipe (3) and the spray gun (5), an air breathing assembly (7) is connected to the medium-pressure output pipe (3), one end of the high-pressure oxygen cylinder (2) is fixedly mounted with a pressure gauge (8), and one side of the pressure gauge (8) is fixedly mounted with a low-pressure alarm (9) for reminding of insufficient gas content.

2. The backpack multifunctional spraying device according to claim 1, characterized in that: A supporting plate frame (10) is fixedly mounted on the bottom of the liquid storage barrel (1), a sponge pad (11) for protecting the back of emergency rescue personnel is fixedly mounted on the back of the supporting plate frame (10), and two shoulder straps (12) with one end passing through the sponge pad (11) are fixedly mounted on the back of the supporting plate frame (10).

3. The backpack multifunctional spraying device according to claim 1, characterized in that: The high-pressure oxygen cylinder (2) is fixedly mounted on one side of the liquid storage barrel (1), the medium-pressure output pipe (3) is fixedly connected to the high-pressure oxygen cylinder (2), and a high-pressure shut-off valve and a pressure reducing valve are fixedly mounted on one end of the high-pressure oxygen cylinder (2).

4. The backpack multifunctional spraying device according to claim 1, characterized in that: The spray gun (5) comprises a gun body and a connecting pipe, wherein the gun body is fixedly connected to one end of the connecting pipe, and one end of the connecting pipe is fixedly connected to a pneumatic infusion pump (4). A connecting pipe is fixedly installed between the pneumatic infusion pump (4) and the liquid storage barrel (1).

5. The backpack multifunctional spraying device according to claim 4, characterized in that: The non-return device (6) comprises a return pipe and a non-return valve, wherein the non-return valve is fixedly mounted on the return pipe, and the return pipe is fixedly connected to the connecting pipe and the medium-pressure output pipe (3) respectively.

6. The backpack multifunctional spraying device according to claim 1, characterized in that: The air breathing assembly (7) comprises a breathing mask and a gas pipeline, wherein the gas pipeline is fixedly connected to the breathing mask, one end of the gas pipeline is fixedly connected to the medium-pressure output pipe (3), and a rope loop is fixedly installed on the breathing mask.

7. The backpack multifunctional spraying device according to claim 2, characterized in that: A plurality of locking bolts are inserted into the support frame (10), one end of each locking bolt passes through the support frame (10) and extends to the liquid storage barrel (1), the locking bolts are connected to the liquid storage barrel (1) via threads, and a sealing cover is threadedly connected to the liquid storage barrel (1).

8. The backpack multifunctional spraying device according to claim 2, characterized in that: The back of the support frame (10) is hinged with four connecting rings, and one end of the two shoulder straps (12) is respectively connected to the four connecting rings. The back of the sponge pad (11) is provided with four rectangular grooves, and the two shoulder straps (12) respectively pass through the two rectangular grooves on the same side.