Limited space operation self-rescuer

Abstract

The utility model discloses a self-rescuer for operation in a limited space, which comprises a high-pressure gas cylinder, a pressure reducing valve is arranged at the opening of the high-pressure gas cylinder, an audible and visual alarm is arranged on the pressure reducing valve, and the audible and visual alarm is electrically connected with a controller and a gas detector; the periphery of the high-pressure gas cylinder is sleeved with a protective sleeve, a telescopic rod is detachably installed on the protective sleeve, and a gas detector magnetic attraction fixing device is installed at the top of the telescopic rod. Gas detection, high-pressure air breathing and sound-light alarm are integrated, wherein the gas detection comprises combustible gas content, poisonous gas content, oxygen content and air pressure in a high-pressure gas cylinder. The audible and visual alarm can inform external personnel to organize rescue, and the synchronous flashing light starts to flicker, so that the external personnel can quickly position the rescued personnel through sound and flashing, and rescue can be quickly implemented; and meanwhile, other operators can be reminded to evacuate quickly, and the high-pressure air breathing device can be used for breathing when the operators evacuate quickly or supporting the operators for a long time when the operators are trapped until rescue workers arrive.

Description

Technical Field

[0001] The utility model relates to the technical field of operation self-rescue, in particular to a self-rescuer for operation in a limited space. Background Art

[0002] At present, the safety control method adopted for confined space operations is "ventilation first, then testing, and then operation". Before the operation, the ventilation holes are opened first, natural ventilation or forced ventilation is carried out, and then the oxygen, combustible gas, and toxic gas content are tested to see if they are qualified. After passing the test, personnel and staff can enter the confined space to operate.

[0003] The main problem is insufficient ventilation. Due to site conditions, some sites have only one ventilation hole, or although there are multiple ventilation holes, the internal space is complex and cannot achieve sufficient ventilation. In addition, gas detection can only be carried out near the ventilation hole, which cannot reflect whether the oxygen, combustible gas, and toxic gas content in the confined space exceeds the standard.

[0004] When workers enter a confined space and excessive levels of toxic or flammable gases or low oxygen levels occur, they are unaware of the situation or their bodies are no longer functioning properly by the time they become aware of it. They may even go into shock and be unable to notify outside workers for help. By the time outside workers realize they have lost contact with the workers inside, they are already too late to provide emergency assistance. Furthermore, if outside workers rashly enter to provide assistance, the incident could escalate further. Utility Model Content

[0005] The main purpose of the utility model is to provide a self-rescuer for confined space operations, aiming to solve the technical problems of the prior art in that confined space operations have many potential safety hazards and cannot be discovered and self-rescued in time.

[0006] To achieve the above object, the utility model provides a self-rescuer for confined space operations, comprising a high-pressure gas cylinder, a pressure reducing valve installed at the mouth of the high-pressure gas cylinder, an audible and visual alarm installed on the pressure reducing valve, and the audible and visual alarm electrically connected to a controller and a gas detector;

[0007] A protective sleeve is provided on the periphery of the high-pressure gas cylinder. A telescopic rod is detachably provided on the protective sleeve. A magnetic fixing device for the gas detector is provided on the top of the telescopic rod.

[0008] Furthermore, the pressure reducing valve is connected to a respirator via an air hose, and the respirator is provided with a mouthpiece, an exhaust valve, an air intake valve, and a nose clip.

[0009] Furthermore, a patch is fixed on the protective cover, a magic tape and a magnet are provided on the patch, and the telescopic rod is detachably mounted on the patch via the magic tape or the magnet.

[0010] Furthermore, the pressure reducing valve is provided with an air charging port, a pressure gauge and a pressure switch.

[0011] Furthermore, the protective cover is detachably covered with a backpack adapted to the high-pressure gas cylinder, and the backpack is provided with a shoulder strap;

[0012] A strap is provided at the bag opening of the backpack.

[0013] Furthermore, the sound and light alarm is provided with a pull ring switch.

[0014] Furthermore, one side of the plate is provided with a curved surface adapted to the protective cover, and the other side is provided with a curved surface adapted to the telescopic rod.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. When using the existing gas detection device, it is necessary to open the vent and hold the device to detect whether the gas is qualified. There is a problem that the detection position cannot reach the interior of the confined space. If the device is inserted for detection, there will be a safety hazard. This device is equipped with a telescopic rod. The gas detection device can be removed and fixed on the telescopic rod by magnetic attraction. It can be inserted into the confined space to detect whether the gas is qualified. The detection effect and safety are good.

[0017] 2. Three-in-one gas detection + high-pressure air breathing + audio and visual alarm: Gas detection includes: combustible gas, toxic gas and oxygen content, as well as the air pressure inside the high-pressure gas cylinder. The audio and visual alarm notifies outside personnel to organize rescue efforts, and a synchronized strobe light flashes, allowing outside personnel to quickly locate the person being rescued through sound and light, allowing for rapid rescue. It also serves as a reminder for other workers to evacuate quickly.

[0018] 3. High-pressure air breathing apparatus can also be used by workers for rapid evacuation or to support workers for a longer period of time when trapped until rescuers arrive. External workers can also use this apparatus for rescue.

[0019] 4. The sound and light alarm is equipped with a pull ring switch. Under the condition that the gas detection is qualified, if you feel unwell (caused by emotions, illness, etc.), you can pull the pull ring switch to activate the sound and light alarm and wait for external rescue.

[0020] 5. There is a protective cover outside the high-pressure gas cylinder. If the high-pressure gas cylinder is collided, squeezed, etc. during operation, the gas cylinder will be protected from damage and can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure when there is no backpack;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the telescopic rod of the utility model when it is disassembled;

[0024] Figure 4 This is the control principle diagram of the utility model.

[0025] Description of reference numerals:

[0026] 1. High-pressure gas cylinder, 2. Pressure reducing valve, 2a. Inflating port, 2b. Pressure gauge, 2c. Pressure switch, 3. Controller, 4. Sound and light alarm, 4a. Pull ring switch, 5. Air hose, 6. Respirator, 6a. Mouthpiece, 6b. Exhaust valve, 6c. Inlet valve, 6d. Nose clip, 7. Telescopic rod, 8. Gas detector, 9. Protective cover, 10. Sticker, 11. Magic belt, 12. Magnet, 13. Backpack, 14. Shoulder strap, 15. Tie strap, 16. Magnetic fixing device. DETAILED DESCRIPTION

[0027] 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. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes in which A and B are satisfied at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0030] See also Figures 1 to 4 The utility model is a self-rescuer for confined space operations, comprising a high-pressure gas cylinder 1, a pressure reducing valve 2 being installed at the mouth of the high-pressure gas cylinder 1, an audible and visual alarm 4 being installed on the pressure reducing valve 2, and the audible and visual alarm 4 being electrically connected to a controller 3 and a gas detector 8;

[0031] The high-pressure gas cylinder 1 is sheathed with a protective cover 9, on which a telescopic rod 7 is detachably mounted, and a gas detector magnetic fixing device 18 is mounted on the top of the telescopic rod 7, and the gas detector 8 is detachably mounted on the magnetic fixing device 18;

[0032] The magnetic fixing device 18 is barrel-shaped, with a magnet installed at the bottom. The gas detector 8 is detachably magnetically attracted to the barrel through the magnet.

[0033] When working in a confined space, i.e. a closed or partially closed space with narrow and limited entrances and exits, not designed as a fixed workplace, with poor natural ventilation, and prone to accumulation of toxic, hazardous, flammable, or explosive substances, or insufficient oxygen content;

[0034] The gas detection component can detect the content of flammable gases, toxic gases, and oxygen, as well as the air pressure inside high-pressure gas cylinders. Operators carry it with them. If toxic gases, excessive flammable gas levels, or low oxygen levels are detected, the alarm sounds, prompting the operator to quickly open the self-rescuer, breathe, and evacuate immediately. If the air pressure inside the high-pressure gas cylinder is low, the alarm also sounds an audible and visual alarm, reminding the operator to refill the gas immediately.

[0035] An audible and visual alarm notifies outside personnel to organize rescue efforts, and a synchronized strobe light begins flashing, allowing outside personnel to quickly locate the victim through the sound and flash, allowing for swift rescue. Even if trapped workers are unable to leave the confined space in time, the high-pressure air breathing apparatus can sustain them for a considerable period of time until rescuers arrive. External personnel can also utilize this apparatus during rescue efforts.

[0036] In some embodiments, see Figure 2 As shown, the pressure reducing valve 2 is connected to a respirator 6 via an air hose 5, and the respirator 6 is provided with a mouthpiece 6a, an exhaust valve 6b, an intake valve 6c, and a nose clip 6d.

[0037] In some embodiments, see Figure 3 As shown, a patch 10 is fixed on the protective cover 9 , and a magic tape 11 and a magnet 12 are provided on the patch 10 . The telescopic rod 7 is detachably mounted on the patch 10 via the magic tape 11 or the magnet 12 .

[0038] In some embodiments, see Figure 1As shown, the pressure reducing valve 2 is provided with an air filling port 2a, a pressure gauge 2b, and a pressure switch 2c.

[0039] In some embodiments, see Figure 1 As shown, the outer periphery of the protective cover 9 is detachably covered with a backpack 13 adapted to the high-pressure gas cylinder 1 , and the backpack 13 is provided with a shoulder strap 14 ;

[0040] The backpack 13 is provided with a tie 15 at its opening.

[0041] In some embodiments, see Figure 1 As shown, the sound and light alarm 4 is provided with a pull ring switch 4a.

[0042] In some embodiments, see Figure 3 As shown, one side of the plate 10 is provided with a curved surface adapted to the protective cover 9 , and the other side is provided with a curved surface adapted to the telescopic rod 7 .

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-rescuer for confined space operations, comprising a high-pressure gas cylinder (1), characterized in that The high-pressure gas cylinder (1) is provided with a pressure reducing valve (2) at its mouth, the pressure reducing valve (2) is provided with an audible and visual alarm (4), and the audible and visual alarm (4) is electrically connected to the controller (3) and the gas detector (8); The high-pressure gas cylinder (1) is sheathed with a protective sleeve (9), the protective sleeve (9) is detachably provided with a telescopic rod (7), and the top of the telescopic rod (7) is provided with a gas detector magnetic fixing device (16).

2. A self-rescuer for confined space operations according to claim 1, characterized in that: The pressure reducing valve (2) is connected to a respirator (6) via an air hose (5), and the respirator (6) is provided with a mouthpiece (6a), an exhaust valve (6b), an intake valve (6c), and a nose clip (6d).

3. A self-rescuer for confined space operations according to claim 1, characterized in that: A patch plate (10) is fixed on the protective cover (9), a magic belt (11) and a magnet (12) are provided on the patch plate (10), and the telescopic rod (7) is detachably mounted on the patch plate (10) via the magic belt (11) or the magnet (12).

4. A self-rescuer for confined space operations as claimed in claim 2, characterized in that: The pressure reducing valve (2) is provided with an air filling port (2a), a pressure gauge (2b), and a pressure switch (2c).

5. A self-rescuer for confined space operations as claimed in claim 1, characterized in that: The protective cover (9) is detachably provided with a backpack (13) adapted to the high-pressure gas cylinder (1), and the backpack (13) is provided with a shoulder strap (14); The backpack (13) is provided with a tie (15) at the bag opening.

6. A self-rescuer for confined space operations as claimed in claim 1, characterized in that: The sound and light alarm (4) is provided with a pull ring switch (4a).

7. A self-rescuer for confined space operations as claimed in claim 3, characterized in that: One side of the plate (10) is provided with a curved surface adapted to the protective cover (9), and the other side is provided with a curved surface adapted to the telescopic rod (7).

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