An arm type water rescue device

Abstract

The utility model discloses an arm type water lifesaving device relates to lifesaving equipment technical field, including base, mechanical pressure switch, steel bottle and air bag, the base one side is equipped with the load ring, the other side of base is equipped with the storage box, install the air bag in the storage box, the upper end surface of base is equipped with mechanical pressure switch, the lower end surface of base is equipped with steel bottle, the mechanical pressure switch adopts the automatic triggering of water pressure, and is used for puncturing the sealing pad of steel bottle bottle mouth department, makes the compressed gas in steel bottle to enter air bag, realizes the inflation of air bag, the utility model discloses the special structure design of mechanical pressure switch replaces the trigger operation of traditional electric control type lifesaving device, need not using electric energy to realize the automatic trigger inflation operation of the situation of drowning, uses more stable and reliable, and the device is equipped with manual trigger structure simultaneously, and it is convenient for the use of rescuing others.

Description

Technical Field

[0001] This utility model relates to the field of lifesaving equipment technology, specifically to an arm-type water rescue device. Background Technology

[0002] Arm-mounted water rescue equipment, as a new type of rescue tool, aims to significantly improve rescue efficiency and applicability through advanced material selection and design concepts. In practical applications, this equipment can provide rescuers and those in distress with more convenient and reliable protection, thereby enabling rapid and effective rescue operations in emergency situations.

[0003] Currently available arm-mounted water rescue equipment typically requires manual inflation when a user faces drowning danger. In emergencies, inflation can be difficult to trigger, leading to poor reliability. To address this issue, arm-mounted water rescue equipment using sensors for electronic triggering has emerged. While this overcomes the manual triggering problem, it is limited by battery power and sensor accuracy. After prolonged storage, battery depletion or sensor contamination can cause malfunction, compromising triggering reliability. Therefore, a new arm-mounted water rescue device is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide an arm-type water rescue device to solve the problems existing in the prior art mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An arm-type water rescue device includes a base, a mechanical pressure switch, a steel cylinder, and an airbag. A support wristband is installed on one side of the base, and a storage box is installed on the other side of the base. The airbag is installed inside the storage box.

[0007] A mechanical pressure switch is installed on the upper end face of the base, and a steel cylinder is installed on the lower end face of the base. The mechanical pressure switch is automatically triggered by water pressure and is used to puncture the sealing gasket at the mouth of the steel cylinder, so that the compressed gas inside the steel cylinder can enter the air bladder and inflate the air bladder.

[0008] Preferably, the mechanical pressure switch includes a valve body, a push rod, and an inner sleeve. The push rod is slidably installed inside the valve body, and the inner sleeve is slidably connected inside the valve body. The lower end of the inner sleeve is fixedly connected to the middle part of the push rod, and an energy storage spring is installed on the inner sleeve.

[0009] The valve body has a sleeve ring on its lower inner side, a gasket is installed on the sleeve ring, a sealing ring is connected to the lower end of the sleeve ring, a slider is slidably connected to the lower end of the valve body, a valve core is connected to the lower end of the slider, an O-ring is connected to the side wall of the valve core, a return spring is installed on the valve core, and a swivel cap is connected to the upper end of the valve body.

[0010] Preferably, the cylinder is provided with a sealing gasket at the cylinder opening, and the sealing gasket is sealed and fixed at the cylinder opening by an insert nut.

[0011] Preferably, a top pin is mounted on the top of the top rod, the top pin being used to manually trigger a mechanical pressure switch.

[0012] Preferably, the bearing wristband is detachably mounted on the base via connecting bolts.

[0013] Preferably, the compressed gas in the cylinder is CO2 gas.

[0014] Preferably, the lower end of the valve core has a sharp pointed structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention employs a special mechanical pressure switch design to replace the triggering operation of traditional electrically controlled lifesaving devices. It can automatically trigger inflation in drowning situations without the use of electricity, making it more stable and reliable. In addition, the device is also equipped with a manual triggering structure for easy use when rescuing others. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This utility model Figure 1 Schematic diagram of the cross-sectional structure of AA.

[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a top view of the structure of this utility model.

[0021] Figure 5 This utility model Figure 4 Schematic diagram of the cross-sectional structure of BB.

[0022] In the diagram: 1. Valve body; 2. Rotary cap; 3. Bearing ring; 4. Sealing ring; 5. Washer; 6. Top rod; 7. Top pin; 8. Inner sleeve; 9. Energy storage spring; 10. Enclosure ring; 11. Slider; 12. Storage box; 13. O-ring; 14. Airbag; 15. Return spring; 16. Insert nut; 17. Sealing gasket; 18. Valve core; 19. Gas cylinder; 20. Connecting bolt; 21. Base. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] An arm-type water rescue device includes a base 21, a mechanical pressure switch, a gas cylinder 19, and an airbag 14. A support wristband 3 is installed on one side of the base 21. The support wristband 3 is detachably installed on the base 21 via connecting bolts 20. The support wristband 3 has an adjustable structure and can be adjusted according to the user's arm circumference, making it convenient and comfortable to wear. A storage box 12 is installed on the other side of the base 21. The airbag 14 is installed inside the storage box 12. The inflation port of the airbag 14 is connected to the air passage of the base 21, allowing compressed gas from the gas cylinder 19 to enter the airbag 14.

[0026] Airbag 14 is made of a three-layer structure. Outer layer: high-strength nylon composite fabric (model) 500D), thickness 0.3mm, tear strength ≥100N / cm 2 The puncture resistance is tested according to ASTM D4833 standard. The inner layer is a polyurethane (PU) coating with a thickness of 0.1 mm. The coating process uses hot pressing to ensure complete waterproofing (hydrostatic pressure ≥10,000 mmH2O). The sealing strip is a TPU (thermoplastic polyurethane) hot melt adhesive strip with a melting point of 120℃, used for high-frequency welded joints.

[0027] A mechanical pressure switch is installed on the upper end face of the base 21, and a steel cylinder 19 is installed on the lower end face of the base 21. The compressed gas in the steel cylinder 19 is CO2 gas. The mechanical pressure switch is automatically triggered by water pressure and is used to puncture the sealing gasket 17 at the mouth of the steel cylinder 19, so that the compressed gas in the steel cylinder 19 can enter the airbag 14 and inflate the airbag 14.

[0028] The mechanical pressure switch includes a valve body 1, a push rod 6, and an inner sleeve 8. The push rod 6 is slidably installed inside the valve body 1. The inner sleeve 8 is slidably connected inside the valve body 1. The lower end of the inner sleeve 8 is fixedly connected to the middle part of the push rod 6. An energy storage spring 9 is installed on the inner sleeve 8 and is in a pre-compressed state.

[0029] The valve body 1 has a sleeve ring 10 on its lower inner side. The sleeve ring 10 is made of a flexible rubber material and has a protrusion inside for limiting the lower end of the push rod 6. Its function is to limit the energy storage spring 9 in the pre-compressed state. When the combined force of the water pressure and the energy storage spring 9 is greater than the required deformation force of the sleeve ring 10, the push rod 6 can move downward.

[0030] A gasket 5 is installed on the sleeve 10, and a sealing ring 4 is connected to the lower end of the sleeve 10. A slider 11 is slidably connected to the lower end of the valve body 1, and a valve core 18 is connected to the lower end of the slider 11. The lower end of the valve core 18 has a sharp tip structure, which facilitates piercing the sealing gasket 17. An O-ring 13 is connected to the side wall of the valve core 18, and a return spring 15 is installed on the valve core 18. A swivel cap 2 is connected to the upper end of the valve body 1.

[0031] A top pin 7 is installed on the top of the top rod 6. The top pin 7 is used to manually trigger the mechanical pressure switch. When rescuing others, rescuers can also manually trigger the inflation of the life-saving device. A sealing gasket 17 is provided at the mouth of the cylinder 19. The sealing gasket 17 is sealed and fixed at the mouth of the cylinder 19 by an insert nut 16. The insert nut 16 fixes the sealing gasket 17 to the mouth of the cylinder 19, which facilitates the next replacement of the sealing gasket 17.

[0032] The working process of this utility model is as follows:

[0033] When using this arm-type water rescue device, first put the support wristband 3 on your arm and adjust it to a tight position. When the user is drowning, the rescue device is immersed in the water to a set depth (about 2-3m) and reaches the predetermined water pressure. The water pressure pushes the inner sleeve 8 and the top rod 6. The resultant force of this thrust and the energy storage spring 9 is greater than the required deformation force of the sleeve ring 10, so that the lower end of the top rod 6 breaks through the limiting protrusion of the sleeve ring 10, thereby pushing the slider 11. The slider 11 pushes the valve core 18, causing the valve core 18 to puncture the sealing gasket 17. The compressed gas in the cylinder 19 enters the airbag 14 through the air passage, realizing the automatic inflation operation of the airbag 14, thereby exerting the rescue effect.

[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An arm-type water rescue device, characterized in that, Includes a base (21), a mechanical pressure switch, a gas cylinder (19) and an airbag (14). A carrying wristband (3) is installed on one side of the base (21), and a storage box (12) is installed on the other side of the base (21). The airbag (14) is installed inside the storage box (12). A mechanical pressure switch is installed on the upper end face of the base (21), and a steel cylinder (19) is installed on the lower end face of the base (21). The mechanical pressure switch is automatically triggered by water pressure and is used to puncture the sealing gasket (17) at the mouth of the steel cylinder (19), so that the compressed gas in the steel cylinder (19) enters the air bag (14) and inflates the air bag (14).

2. The arm-type water rescue device according to claim 1, characterized in that: The mechanical pressure switch includes a valve body (1), a push rod (6) and an inner sleeve (8). The push rod (6) is slidably installed inside the valve body (1). The inner sleeve (8) is slidably connected inside the valve body (1). The lower end of the inner sleeve (8) is fixedly connected to the middle part of the push rod (6). An energy storage spring (9) is installed on the inner sleeve (8). The valve body (1) has a sleeve (10) on its lower inner side, a gasket (5) is installed on the sleeve (10), a sealing ring (4) is connected to the lower end of the sleeve (10), a slider (11) is slidably connected to the lower end of the valve body (1), a valve core (18) is connected to the lower end of the slider (11), an O-ring (13) is connected to the side wall of the valve core (18), a return spring (15) is installed on the valve core (18), and a swivel cap (2) is connected to the upper end of the valve body (1).

3. The arm-type water rescue device according to claim 1, characterized in that: The cylinder (19) is provided with a sealing gasket (17) at the mouth of the cylinder (19), and the sealing gasket (17) is sealed and fixed at the mouth of the cylinder (19) by an insert nut (16).

4. The arm-type water rescue device according to claim 2, characterized in that: A top pin (7) is installed on the top of the top rod (6), and the top pin (7) is used to manually trigger the mechanical pressure switch.

5. The arm-type water rescue device according to claim 1, characterized in that: The bearing wristband (3) is detachably mounted on the base (21) by means of connecting bolts (20).

6. The arm-type water rescue device according to claim 1, characterized in that: The compressed gas inside the steel cylinder (19) is CO2 gas.

7. The arm-type water rescue device according to claim 2, characterized in that: The lower end of the valve core (18) has a sharp tip structure.

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