Automatic vent valve when meeting water and salvation device falling into water

Abstract

The utility model discloses a water-encountering automatic ventilation valve which comprises a valve body, an air inlet hole is formed in the bottom end of the valve body, air outlet holes are formed in the periphery of the valve body, a ventilation channel is formed between the air inlet hole and the air outlet holes in the valve body, a movable valve element is installed in the valve body, and a valve element switch capable of opening and closing the ventilation channel is installed at the bottom end of the movable valve element. A lower elastic piece is installed between the bottom end of the valve element switch and the valve body. A valve element gasket is installed at the top end of the movable valve element, an upper elastic piece is arranged between the top end of the valve element gasket and the valve body, a hydrolysis piece is supported at the bottom end of the valve element gasket, and a water inlet hole is formed in the top end of the valve body. Opening of the vent valve does not need signal control through a sensor and the like, chemical reaction of dissolving in water is combined with pure mechanical structure design, automatic opening of the vent valve can be achieved, opening of the valve is controlled according to whether water exists or not, the control mode is accurate, and operation is convenient. The utility model is suitable for the field of vehicle drowning rescue.

Description

Technical Field

[0001] The utility model relates to an automatic vent valve when in contact with water and a drowning rescuer comprising the automatic vent valve. Background Art

[0002] In recent years, accidents involving vehicles falling into water have occurred frequently. Vehicles have no buoyancy. When a vehicle falls into the water, it sinks quickly and is easily completely submerged by water, causing the people inside the vehicle to lack air to breathe, making it difficult to escape, save themselves, or wait for rescue. Therefore, it is necessary to develop a vehicle-overwater rescuer. The working principle of the vehicle-overwater rescuer in the prior art is as follows: when a vehicle falls into the water and sinks to a certain depth, the water inlet monitor detects water ingress into the vehicle and sends an electrical signal to control the inflation module to inflate the airbag, driving the vehicle to float, making it easier for the people inside the vehicle to escape, save themselves, or wait for rescue. As a sensor, the water inlet monitor cannot control the opening of the inflation module when it fails due to various reasons such as short circuit or power outage, resulting in the airbag being unable to inflate and deploy for rescue. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automatic water vent valve which is easy to use and can automatically open when encountering water, and a drowning rescuer comprising the automatic vent valve.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an automatic air vent valve when in contact with water, including a valve body, an air inlet hole is provided at the bottom end of the valve body, an air outlet hole is provided at the periphery of the valve body, an air duct is provided between the air inlet hole and the air outlet hole in the valve body, a movable valve core is installed inside the valve body, a valve core switch that can open and close the air duct is installed at the bottom end of the movable valve core, and a lower elastic part is installed between the bottom end of the valve core switch and the valve body; a valve core gasket is installed at the top end of the movable valve core, an upper elastic part is provided between the top end of the valve core gasket and the valve body, a hydrolysis part is supported at the bottom end of the valve core gasket, and a water inlet hole is provided at the top end of the valve body.

[0005] As a preferred technical solution, an opening is provided on the periphery of the valve body, and a manual pressing block is provided on the outer surface of the movable valve core, extending out of the opening and sliding vertically along the opening.

[0006] As a preferred technical solution, a fixed handle is provided on the outer surface of the valve body, a manual pressing handle is swingably mounted on the fixed handle, and a pressing protrusion for pressing the top of the manual pressing block is provided at the top of the manual pressing handle.

[0007] As a preferred technical solution, the hydrolyzable component is a PVA water-soluble pad, a PVA starch composite water-soluble pad, or a starch water-soluble pad.

[0008] As a preferred technical solution, a plurality of water holes are provided on the surface of the valve core gasket.

[0009] As a preferred technical solution, a second water inlet hole is further provided in the middle of the valve body below the hydrolysis element.

[0010] As an optimal technical solution, the valve core switch is threadedly connected to the bottom end of the movable valve core, and an air intake sealing ring is installed between the movable valve core and the valve core switch. The outer periphery of the air intake sealing ring is sealed and pressed against the air passage.

[0011] As a preferred technical solution, a valve core cavity for accommodating the movable valve core is provided in the valve body, the movable valve core moves up and down along the valve core cavity, and a valve core sealing ring is provided between the movable valve core and the valve core cavity.

[0012] Another preferred technical solution is a drowning rescuer, which includes an expansion body, an air storage tank and the above-mentioned automatic water vent valve, wherein the air outlet of the air storage tank is connected to the air inlet of the automatic water vent valve, and the air outlet of the automatic water vent valve is connected to the air inlet of the expansion body.

[0013] As a preferred technical solution, the expansion body is arranged behind a car seat or in a car trunk when in a folded state.

[0014] Due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows: the opening of the vent valve of the utility model does not require signal control through sensors, etc., but is achieved by a chemical reaction of dissolution in water combined with a purely mechanical structure design. Not only can the vent valve be opened automatically, but the opening of the valve can also be controlled according to whether there is water. The control method is relatively accurate and suitable for the field of vehicle fall-in-water rescue; the vent valve of the utility model can not only be opened automatically when encountering water, but can also be opened manually. The two usage methods do not interfere with each other, and the use safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0016] Figure 1 This is a schematic structural diagram of the vent valve according to an embodiment of the present utility model;

[0017] Figure 2 This is a structural diagram of the vent valve according to another embodiment of the present invention;

[0018] Figure 3 This is a structural principle diagram of the vent valve in the closed state of an embodiment of the utility model;

[0019] Figure 4 This is a structural principle diagram of the vent valve of the embodiment of the utility model after it automatically opens when it encounters water;

[0020] Figure 5 This is a structural principle diagram of the vent valve of the embodiment of the utility model after manual opening;

[0021] Figure 6 This is a structural block diagram of a drowning rescuer according to an embodiment of the present utility model;

[0022] In the figure: 1-valve body; 2-air inlet; 3-air outlet; 4-air duct; 5-movable valve core; 6-valve core sealing ring; 7-valve core switch; 8-air inlet sealing ring; 9-lower elastic member; 10-valve core gasket; 11-upper elastic member; 12-hydrolysis member; 13-water inlet hole 1; 14-opening; 15-manual pressing block; 16-fixed handle; 17-manual pressing handle; 18-pressing bump; 19-water inlet hole 2. DETAILED DESCRIPTION

[0023] The present invention is further described below with reference to the accompanying drawings and examples. In the detailed description that follows, certain exemplary embodiments of the present invention are described by way of illustration only. It goes without saying that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.

[0024] Example 1:

[0025] like Figures 1 to 3The bottom end of the movable valve core 5 is provided with a valve core switch 7 for opening and closing the air passage 4, and the valve core switch 7 is threadedly connected to the bottom end of the movable valve core 5. An air intake sealing ring 8 is installed between the movable valve core 5 and the valve core switch 7. The outer periphery of the air intake sealing ring 8 is sealed and pressed tightly against the air passage 4. A lower elastic member is installed between the bottom end of the valve core switch 7 and the valve body 1. The top of the valve body 1 is provided with a water inlet hole 13, and the spring force of the upper elastic member 11 is greater than the elastic force of the lower elastic member 9.

[0026] The working principle of this embodiment is:

[0027] Figure 3 The state shown is the vent valve closed state, at this time the hydrolysis element 12 is not softened or dissolved to support the valve core gasket 10, and the lower elastic element 9 presses the valve core switch 7 upward to close the vent 4;

[0028] When water enters the water inlet hole 13 and contacts the hydrolysis component 12, the hydrolysis component 12 softens or dissolves, and the valve core gasket 10 loses its supporting force. At this time, the upper elastic member 11 is released, pushing the valve core gasket 10 downward to push the movable valve core 5, overcoming the elastic force of the lower elastic member 9. The movable valve core 5 drives the valve core switch 7 to move downward, opening the ventilation channel 4, and realizing that the ventilation valve automatically opens when it encounters water. The state after automatic opening is shown in FIG. Figure 4 .

[0029] The opening of the vent valve of the utility model does not require signal control through sensors or the like, but is achieved by a chemical reaction of dissolution in water combined with a purely mechanical structure design. Not only can the vent valve be opened automatically, but the opening of the valve can also be controlled according to whether there is water. The control method is relatively accurate and is suitable for the field of vehicle fall-into-water rescue.

[0030] The hydrolyzable element 12 is a PVA water-soluble pad, a PVA-starch composite water-soluble pad, a starch water-soluble block, or a composite of a water-soluble hydrolyzable material and other structures. It softens or dissolves upon contact with water, reducing the support force on the valve core gasket 10. The PVA water-soluble pad is a prior art material that is normally in a solid state with a certain support force and softens or dissolves upon contact with water. The PVA-starch composite water-soluble pad is a pad formed by mixing PVA powder and starch in a certain proportion. This is a prior art material and will not be further described here.

[0031] The surface of the valve core gasket 10 is provided with a plurality of water holes, which facilitate water to quickly pass through the valve core gasket 10 and contact the hydrolysis component 12.

[0032] A second water inlet hole 19 is provided in the middle of the valve body 1 below the hydrolysis element 12 . A gap is provided between the first water inlet hole 13 and the second water inlet hole 19 to communicate with each other, thereby accelerating the water inlet speed.

[0033] The top of the valve body 1 is provided with an accommodating cavity, and the hydrolysis component 12, the valve core gasket 10, and the upper elastic component 11 are arranged in the accommodating cavity from bottom to top. The accommodating cavity protects the hydrolysis component 12 to prevent the vent valve from being accidentally opened after water is spilled.

[0034] The vent valve of this solution can be dissolved in water to realize automatic opening of the valve, and can be used for automatic rescue of vehicle drowning devices. In order to ensure that the vent valve can be opened and used before encountering water, this application further improves the structure and adds a manual opening method. Specifically, the periphery of the valve body 1 is provided with an opening 14, and the outer surface of the movable valve core 5 is provided with a manual pressing block 15 extending out of the opening 14 and sliding vertically along the opening 14. When the manual pressing block 15 is pressed downward, it can drive the valve core switch 7 to open the vent 4, thereby realizing manual opening of the valve. In order to facilitate hand pressing, the outer surface of the valve body 1 is provided with a fixed handle 16, and a manual pressing handle 17 is swingably installed on the fixed handle 16. The top of the manual pressing handle 17 is provided with a pressing protrusion 18 that presses the top of the manual pressing block 15. When in use, the operator holds the manual pressing handle 17 firmly so that the pressing protrusion 18 presses the manual pressing block 15 downward to open the valve. The utility model can not only realize the automatic opening of the vent valve when it comes into contact with water, but also can be opened manually. The two modes of use do not interfere with each other, and the use safety is higher. The state after manual opening is shown in FIG. Figure 5 .

[0035] Example 2:

[0036] The structure of this embodiment is basically the same as that of the first embodiment. The difference is that this embodiment is applied on the basis of the first embodiment, and the water-sensitive automatic vent valve in the first embodiment is used for vehicle fall-into-water rescue.

[0037] The structure in this embodiment is shown in FIG. Figure 6 The drowning rescuer includes an expansion body, an air storage tank and an automatic water vent valve. The air outlet of the air storage tank is connected to the air inlet of the automatic water vent valve, and the air outlet of the automatic water vent valve is connected to the air inlet of the expansion body through a quick connector and a pipeline.

[0038] The working principle of this embodiment is:

[0039] When the vehicle falls into water and water enters the cab and covers a certain height, the water contacts the automatic water vent valve, which automatically opens. Of course, it can also be opened manually before the water level rises to deflate the air tank, thereby opening the expansion body. The expansion body generates sufficient buoyancy to make the vehicle float on the water surface, so that people trapped inside and rescuers outside have time and conditions to carry out self-rescue and rescue.

[0040] The expandable element is a composite material of synthetic fiber and resin. It's normally folded, but expands into a ring-shaped shape when expanded. When folded, it can be placed behind a car seat or in the trunk. When expanded, it opens from the bottom up and stands upright for easy deployment. When expanded, it has a volume of approximately 300L, taking up approximately one-eighth of the vehicle's interior space. It generates a maximum buoyancy of 300kg.

[0041] The gas storage tank adopts a liquid carbon dioxide tank with a capacity of 600ML, a pressure resistance of 10MP, an alloy material, and is small and light.

[0042] The expansion body, the air storage tank and the water-induced automatic vent valve serve as a set of combined tools and are usually fixed under the rear of a car seat or in a luggage compartment.

[0043] In addition to rescue people who fall into the water, this design also has a fire extinguishing function. The carbon dioxide tank and valve are combined into one body, which can be removed from the quick connector and used as a fire extinguisher.

[0044] This embodiment is not limited to automobile rescue, but can also be used as a safety device on equipment such as ships.

[0045] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. Automatic vent valve in case of water, characterized by: , a valve body is included, the bottom end of the valve body is provided with an air inlet hole, the periphery of the valve body is provided with an air outlet hole, an air passage is provided between the air inlet hole and the air outlet hole in the valve body, a movable valve core is installed inside the valve body, the bottom end of the movable valve core is provided with a valve core switch which can open and close the air passage, a lower elastic part is installed between the bottom end of the valve core switch and the valve body; a valve core gasket is installed at the top end of the movable valve core, an upper elastic part is provided between the top end of the valve core gasket and the valve body, a hydrolysis part is supported at the bottom end of the valve core gasket, and a water inlet hole is provided at the top end of the valve body.

2. The automatic water vent valve according to claim 1, characterized in that: An opening is provided on the periphery of the valve body, and a manual pressing block is provided on the outer surface of the movable valve core, which extends out of the opening and slides vertically along the opening.

3. The automatic water vent valve according to claim 2, characterized in that: A fixed handle is provided on the outer surface of the valve body, a manual pressing handle is swingably mounted on the fixed handle, and a pressing protrusion for pressing the top of the manual pressing block is provided on the top of the manual pressing handle.

4. The automatic water vent valve according to claim 1, characterized in that: The hydrolyzable piece is a PVA water-soluble pad, a PVA-starch composite water-soluble pad or a starch water-soluble pad.

5. The automatic water vent valve according to claim 1, characterized in that: A plurality of water holes are provided on the surface of the valve core gasket.

6. The automatic water vent valve according to claim 1, characterized in that: A second water inlet hole is also provided in the middle of the valve body below the hydrolysis component.

7. The automatic water vent valve according to claim 1, characterized in that: The valve core switch is threadedly connected to the bottom end of the movable valve core, and an air intake sealing ring is installed between the movable valve core and the valve core switch. The outer periphery of the air intake sealing ring is tightly sealed and pressed against the air passage.

8. The automatic water vent valve according to claim 1, characterized in that: A valve core cavity for accommodating the movable valve core is provided in the valve body. The movable valve core moves up and down along the valve core cavity. A valve core sealing ring is provided between the movable valve core and the valve core cavity.

9. A drowning rescuer, characterized by: It comprises an expansion body, an air storage tank and the automatic water vent valve according to any one of claims 1 to 8, wherein the air outlet of the air storage tank is connected to the air inlet of the automatic water vent valve, and the air outlet of the automatic water vent valve is connected to the air inlet of the expansion body.

10. The drowning rescuer according to claim 9, characterized in that: The expansion body is arranged behind a car seat or in a car trunk when in a folded state.

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