Safety locking valve suitable for liquefied gas steel cylinder

Abstract

The safety locking valve comprises a tank body, a connecting hole is formed in the top face of the tank body, a cylinder valve is arranged on the inner wall of the connecting hole, a connector is arranged at the bottom end of the cylinder valve, and the outer wall of the connector is connected with the inner wall of the connecting hole through threads. A leak-proof component is arranged at the bottom end of the cylinder valve; the anti-leakage component comprises a magnet A fixedly connected to the inner wall of the bottom of the connector, a guide cylinder fixedly connected to the bottom end of the connector, a balancing weight, a spring fixedly connected to the bottom end of the guide cylinder and the top end of the balancing weight, and a ball arranged in the spring. And a magnet B is fixedly connected to the top end of the balancing weight. According to the utility model, the continuous leakage of liquefied gas can be quickly and effectively prevented, the use safety is improved, the situation that a large amount of liquefied gas leaks to cause fire and ejection when the cylinder valve cannot be closed in time due to faults and the like is avoided, and the personal and property safety can be effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a safety locking valve applicable to a liquefied gas cylinder. Background Technique

[0002] As a common gas storage and transportation device, liquefied gas cylinders are widely used in households, commerce, industry and other fields. Since the volume of cryogenic liquefied gas will expand rapidly after gasification and form a combustible gas cloud, once it encounters an ignition source, a gas cloud explosion or combustion will occur, causing serious disaster accidents.

[0003] At present, liquefied gas cylinders themselves often lack corresponding safety devices. In the event of a tank tipping over and leaking or being accidentally ignited, the valve is mainly closed manually. However, if the valve fails to be closed in time due to faults or other problems, a large amount of liquefied gas will leak out, leading to a fire and ejection, and it is easy to cause a liquefied gas explosion. For this reason, we have proposed an emergency safety locking valve applicable to liquefied gas cylinders, which can effectively ensure personal and property safety. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a safety locking valve applicable to a liquefied gas cylinder.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A safety locking valve applicable to a liquefied gas cylinder includes a tank body. A connection hole is arranged on the top surface of the tank body. The inner wall of the connection hole is provided with a bottle valve. The bottom end of the bottle valve is provided with a joint. The outer wall of the joint is connected to the inner wall of the connection hole through threads; a leakage prevention component is arranged at the bottom end of the bottle valve.

[0007] As a further scheme of the utility model: the leakage prevention component includes a magnet A fixedly connected to the inner wall of the bottom of the joint, a guide cylinder fixedly connected to the bottom end of the joint, a counterweight, a spring fixedly connected to the bottom end of the guide cylinder and the top end of the counterweight, and a sphere arranged inside the spring;

[0008] The top end of the counterweight is fixedly connected with a magnet B.

[0009] As a further scheme of the utility model: the leakage prevention component includes a magnet A fixedly connected to the inner wall of the bottom of the joint, a guide cylinder fixedly connected to the bottom end of the joint, a metal cover, a spring fixedly connected to the bottom end of the guide cylinder and the top end of the metal cover, and a sphere arranged inside the spring;

[0010] The inner wall of the metal cover is fixedly connected with a magnet B.

[0011] As a further solution of the present utility model: the bottom surface of the magnet A is adapted to the outer surface of the sphere.

[0012] As a further solution of the present utility model: a connecting air port is connected to the circumferential outer wall of the bottle valve.

[0013] As a further solution of the present utility model: the sphere is composed of a metal ball and a sealing cover wrapped around the outer wall of the metal ball.

[0014] As a further solution of the present utility model: a handle is fixedly connected to the top end of the tank body.

[0015] As a further solution of the present utility model: an alarm is fixedly connected to the outer side surface of the handle; a gas sensor is fixedly connected to the inner side surface of the handle.

[0016] Compared with the prior art, the present utility model provides a safety locking valve applicable to liquefied gas cylinders, having the following beneficial effects:

[0017] 1. For the safety locking valve applicable to liquefied gas cylinders, by providing a leakage prevention component, when it is found that liquefied gas leaks, only need to push down the tank body to make it in a horizontal state or with the top end tilted downward. At this time, the sphere will accurately roll along the inside of the spring and the guide cylinder into the joint, thereby blocking its air port. This structure can quickly and effectively prevent the continuous leakage of liquefied gas, improve the use safety, and avoid the situation where a large amount of liquefied gas leaks and causes a fire and ejection when the bottle valve cannot be closed in time due to faults or other problems, and can effectively ensure personal and property safety.

[0018] 2. For the safety locking valve applicable to liquefied gas cylinders, screw the bottle valve into the connection hole through the joint and tighten it, thereby completing the quick installation of the bottle valve and the tank body, and the disassembly is convenient; when the sphere is inside the outer shell, the metal ball is adsorbed by the strong magnet A under the magnetic attraction, and then seals the bottom end of the outer shell. The sealing cover plays a role in increasing the tightness between the outer shell and the sphere, and improves the plugging effect on the air port.

[0019] 3. For the safety locking valve applicable to liquefied gas cylinders, install the alarm and the gas sensor on the handle, which is convenient for disassembly and assembly. During use, the gas sensor continuously detects whether there is liquefied gas leakage. When the detected gas leakage concentration value reaches the set range, it transmits a signal to the control module so that it can control the alarm to give a warning, prompting people to perform emergency treatment in time to control the risk within the minimum range. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall sectional structure of a safety locking valve applicable to liquefied gas cylinders proposed by the present utility model;

[0021] Figure 2 Schematic diagram of the explosion structure of the bottle valve and the tank body of a safety locking valve applicable to liquefied gas cylinders proposed by the present utility model;

[0022] Figure 3 Schematic diagram of the explosion structure of the spring and the counterweight of a safety locking valve applicable to liquefied gas cylinders proposed by the present utility model;

[0023] Figure 4 Schematic diagram of the cross-sectional structure of the sphere of a safety locking valve applicable to liquefied gas cylinders proposed by the present utility model;

[0024] Figure 5 Schematic diagram of the bottle valve structure of a safety locking valve applicable to liquefied gas cylinders proposed by the present utility model.

[0025] In the figure: 1 tank body, 101 connection hole, 2 handle, 3 bottle valve, 301 connection gas port, 302 joint, 303 magnet A, 4 spring, 5 sphere, 501 metal ball, 502 sealing cover, 6 counterweight, 7 guide cylinder, 8 magnet B, 9 metal cover, 10 alarm, 11 gas sensor. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0028] Embodiment 1

[0029] A safety locking valve applicable to liquefied gas cylinders, as Figures 1-5As shown in the figure, it includes a tank body 1, and a handle 2 for easy handling by people is fixedly connected to the top end of the tank body 1; a connection hole 101 is opened on the top surface of the tank body 1, a bottle valve 3 is arranged on the inner wall of the connection hole 101, a joint 302 is arranged at the bottom end of the bottle valve 3, and the outer wall of the joint 302 is connected to the inner wall of the connection hole 101 by threads. And a connection air port 301 for connecting an air inlet device for inflation is connected to the circumferential outer wall of the bottle valve 3 above the tank body 1; preferably, the foregoing structure is the same as the prior art and will not be elaborated here. The bottle valve 3 is screwed into the connection hole 101 through the joint 302 and tightened, thus completing the quick installation of the bottle valve 3 and the tank body 1. The disassembly and assembly are convenient. During use, the air source of the connection hole 101 can be cut off or the air passage can be controlled by opening and closing the bottle valve 3.

[0030] Further, a leakage prevention component is arranged at the bottom end of the bottle valve 3. The leakage prevention component includes a strong magnet A303 welded to the inner wall of the bottom of the joint 302, a guide cylinder 7 welded to the bottom end of the joint 302, a counterweight 6, a spring 4 welded to the bottom end of the guide cylinder 7 and the top end of the counterweight 6, and a sphere 5 placed inside the spring 4; the spring 4 and the guide cylinder 7 play a guiding role for the sphere 5. When it is found that liquefied gas leaks, just push down the tank body 1 to make it in a horizontal state or with the top end tilted downward. At this time, the sphere 5 will roll accurately into the joint 302 along the inside of the spring 4 and the guide cylinder 7, thereby blocking its air port. This structure can quickly and effectively prevent the continuous leakage of liquefied gas and improve the use safety.

[0031] Preferably, the length of the spring 4 is 1 / 5 or 1 / 4 of the length of the guide cylinder 7, etc.

[0032] Preferably, the bottom surface of the strong magnet A303 is adapted to the outer surface of the sphere 5; to ensure that the sphere 5 can be filled into the magnet A303 to block the air port at the bottom end of the joint 302.

[0033] Further preferably, the sphere 5 is composed of a metal ball 501 such as iron and a sealing cover 502 wrapped around the outer wall of the metal ball 501. The thickness of the sealing cover 502 can be 0.1 - 0.5 mm; when the sphere 5 rolls into the range of the joint 302, the metal ball 501 is adsorbed by the strong magnet A303 under the magnetic attraction, and then the bottom end of the joint 302 is blocked. The sealing cover 502 plays a role in increasing the tightness between the magnet A303 and the sphere 5.

[0034] As a supplement, a magnet B8 is fixedly connected to the top end of the counterweight 6; it can play a certain suction role on the sphere 5 when the tank body 1 is erected or tilted slightly.

[0035] Working principle: Screw the bottle valve 3 into the connection hole 101 through the joint 302 and tighten it, thus completing the quick installation of the bottle valve 3 and the tank body 1. When it is found that liquefied gas leaks, just push down the tank body 1 so that it is in a horizontal state or the top is tilted downward. At this time, the sphere 5 will accurately roll along the inside of the spring 4 and the guide cylinder 7 into the joint 302, thereby blocking its air port and being able to quickly and effectively prevent the continuous leakage of liquefied gas; when it needs to be used again, inflate the tank body 1 through the connecting air port 301, and the sphere 5 can be flushed down by the air pressure to make the air port unblocked.

[0036] Embodiment 2

[0037] A safety locking valve applicable to liquefied gas cylinders, as Figures 1-3 and Figure 5 shown. The following improvements are made in this embodiment on the basis of Embodiment 1: The anti-leakage component includes a strong magnet A 303 welded to the inner wall of the bottom of the joint 302, a guide cylinder 7 welded to the bottom end of the joint 302, a metal cover 9, a spring 4 welded to the bottom end of the guide cylinder 7 and the top end of the metal cover 9, and a sphere 5 placed inside the spring 4; the spring 4 and the guide cylinder 7 play a guiding role for the sphere 5. When it is found that liquefied gas leaks, just push down the tank body 1 so that it is in a horizontal state or the top is tilted downward. At this time, the sphere 5 will accurately roll along the inside of the spring 4 and the guide cylinder 7 into the joint 302, thereby blocking its air port. This structure can quickly and effectively prevent the continuous leakage of liquefied gas and improve the safety of use.

[0038] As a supplement, a magnet B 8 is fixedly connected to the inner wall of the metal cover 9; it can play a certain suction role for the sphere 5 when the tank body 1 is erected or tilted slightly.

[0039] Working principle: Screw the bottle valve 3 into the connection hole 101 through the joint 302 and tighten it, thus completing the quick installation of the bottle valve 3 and the tank body 1. When it is found that liquefied gas leaks, just push down the tank body 1 so that it is in a horizontal state or the top is tilted downward. At this time, the sphere 5 will accurately roll along the inside of the spring 4 and the guide cylinder 7 into the joint 302, thereby blocking its air port and being able to quickly and effectively prevent the continuous leakage of liquefied gas; when it needs to be used again, inflate the tank body 1 through the connecting air port 301, and the sphere 5 can be flushed down by the air pressure to make the air port unblocked.

[0040] Embodiment 3

[0041] A safety locking valve applicable to liquefied gas cylinders, as Figure 1As shown, this embodiment makes the following improvements on the basis of Embodiment 1: a gas sensor 11 for detecting whether liquefied gas is leaking is fixed by bolts on the inner side of the handle 2 facing the bottle valve 3; an alarm 10 is fixed by bolts on the outer side of the handle 2, and the alarm 10 and the gas sensor 11 are electrically connected to the control module respectively; the alarm 10 and the gas sensor 11 are installed on the handle 2, which is convenient for disassembly and assembly. During use, the gas sensor 11 detects in real time whether there is leakage of liquefied gas. When it is detected that the gas leakage concentration value reaches the set range, a signal is transmitted to the control module so that it can operate the alarm 10 to warn, prompting people to take emergency measures in time to control the risk within the minimum range.

[0042] Working principle: During use, the gas sensor 11 detects in real time whether there is leakage of liquefied gas. When it is detected that the gas leakage concentration value reaches the set range, it transmits a signal to the control module so that it can operate the alarm 10 to sound an alarm. It is only necessary to push down the tank body 1 to make it horizontal or the top of the top is tilted downward. At this time, the ball 5 will follow the spring 4 and the guide tube 7 to accurately roll into the joint 302, thereby blocking its gas port, which can quickly and effectively prevent the continuous leakage of liquefied gas.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety locking valve for a liquefied gas cylinder, comprising a tank body (1), characterized in that: The top surface of the tank body (1) is provided with a connecting hole (101), the inner wall of the connecting hole (101) is provided with a bottle valve (3), the bottom end of the bottle valve (3) is provided with a joint (302), the outer wall of the joint (302) is connected to the inner wall of the connecting hole (101) via a thread; and the bottom end of the bottle valve (3) is provided with a leakage prevention component.

2. A safety locking valve suitable for liquefied gas cylinders according to claim 1, characterized in that: The anti-leakage component comprises a magnet A (303) fixedly connected to the inner wall of the bottom of the joint (302), a guide tube (7) fixedly connected to the bottom end of the joint (302), a counterweight (6), a spring (4) fixedly connected to the bottom end of the guide tube (7) and the top end of the counterweight (6), and a sphere (5) arranged inside the spring (4); The top end of the counterweight block (6) is fixedly connected with a magnet B (8).

3. A safety locking valve suitable for liquefied gas cylinders according to claim 1, characterized in that: The anti-leakage component comprises a magnet A (303) fixedly connected to the inner wall of the bottom of the joint (302), a guide tube (7) fixedly connected to the bottom end of the joint (302), a metal cover (9), a spring (4) fixedly connected to the bottom end of the guide tube (7) and the top end of the metal cover (9), and a sphere (5) arranged inside the spring (4); The inner wall of the metal cover (9) is fixedly connected with a magnet B (8).

4. A safety locking valve suitable for liquefied gas cylinders according to claim 2 or 3, characterized in that: The bottom surface of the magnet A (303) is matched with the outer surface of the sphere (5).

5. A safety locking valve suitable for liquefied gas cylinders according to claim 4, characterized in that: The circumferential outer wall of the bottle valve (3) is connected with a connecting gas port (301).

6. A safety locking valve suitable for liquefied gas cylinders according to claim 5, characterized in that: The spherical body (5) is composed of a metal ball (501) and a sealing cover (502) wrapped around the outer wall of the metal ball (501).

7. A safety locking valve suitable for liquefied gas cylinders according to claim 1, characterized in that: A handle (2) is fixedly connected to the top of the tank body (1).

8. A safety locking valve for liquefied gas cylinders according to claim 7, characterized in that: An alarm (10) is fixedly connected to the outer side surface of the handle (2); and a gas sensor (11) is fixedly connected to the inner side surface of the handle (2).

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