High-pressure cylinder valve with thrust reverser

Abstract

The utility model provides a high-pressure gas cylinder valve with a thrust reverser, which relates to the technical field of high-pressure gas cylinder valve access devices and comprises a valve body provided with a gas inlet port used for being communicated with a gas cylinder and a gas outlet port used for being communicated with gas supply equipment or gas utilization equipment. An airflow pipe for airflow circulation is arranged between the air inlet port and the air outlet port in the valve body, a valve element assembly is arranged in the airflow pipe, and an elastic reverse thrust assembly is arranged on the outer side of the airflow pipe. The anti-explosion valve has the advantages that when the pressure is too high, an anti-explosion device for preventing the pressure from exceeding the standard is formed through cooperation of the elastic reverse pushing assembly and the magnetic attraction piece, the high-pressure gas cylinder is bounced away from the valve body, and therefore the safe anti-explosion effect is achieved; according to the valve, the connection mode between the gas cylinder and the stove is simplified, so that the operation is more convenient and safer.

Description

Technical Field

[0001] This utility model relates to the technical field of high-pressure gas cylinder valve access devices, and in particular to a high-pressure gas cylinder valve with a reverse thrust device. Background Technology

[0002] A gas cylinder valve is a valve installed on a gas cylinder to control the flow and shut-off of gas. It is widely used in fire-fighting pipelines. In some basic industrial processes, where precise control of gas pressure is not required, a gas cylinder valve without a pressure-reducing valve body can be used. Existing gas cylinder valves generally include a valve body with a flow channel. A reciprocating valve core is installed within this flow channel. The reciprocating movement of the valve core controls the flow channel, thereby allowing the gas cylinder to release gas.

[0003] However, during use, as the furnace body heats up, the pressure of the gas inside the cylinder increases when used in a high-temperature environment. If the gas cylinder continues to circulate gas in a continuously high-temperature environment, it is easy to cause an explosion, especially in some cases where the cylinder valve without a pressure reducing valve is connected to a high-pressure cylinder. Most cylinder valves are connected to the cylinder by a snap-fit. When the cylinder is heated by other external heat sources, the internal pressure increases and it cannot automatically disconnect, making it not very safe to use.

[0004] Therefore, it is necessary to have certain safety protection functions, such as overpressure protection, that is, a valve device is needed to reverse the high-pressure gas tank in a high-temperature environment and disconnect the connection between the high-pressure gas tank and the valve body. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides a high-pressure gas cylinder valve with a reverse thrust device.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A high-pressure gas cylinder valve with a reverse thrust device includes a valve body, which has an inlet port for communicating with a gas cylinder and an outlet port for communicating with a gas supply device or a gas consumption device. An airflow pipe for airflow is provided inside the valve body between the inlet port and the outlet port. A valve core assembly is provided inside the airflow pipe, and an elastic reverse thrust assembly is provided outside the airflow pipe.

[0008] One end of the valve body is provided with a magnetic suction device that can be connected to a gas cylinder, and the magnetic suction device is located outside the air inlet port.

[0009] Preferably, the elastic thrust assembly includes an elastic element, which is sleeved on the outer ring of the airflow pipe. One end of the elastic element is provided with a movable plate, which is located on the side of the air inlet port and on the outer ring of the end port of the airflow pipe.

[0010] Preferably, the valve body has a receiving cavity, the airflow pipe, the valve core assembly and the elastic reverse thrust assembly are all installed in the receiving cavity, and the air inlet port is located on one side of the receiving cavity.

[0011] Preferably, the airflow pipe is provided with an installation member on its outer side to fix the airflow pipe in the receiving cavity, and the elastic member is located between the installation member and the moving plate and is compressed toward the installation member by the movement of the moving plate.

[0012] Preferably, the lower end of the movable plate is provided with a rubber ring, and the air inlet port is provided with an inward limiting part, with the rubber ring located inside the limiting part.

[0013] Preferably, the valve body has a recessed mounting base connected to its outer ring, the mounting base being recessed toward the air intake port, and the magnetic element being installed within the recessed mounting base.

[0014] Preferably, the air outlet is located on the side of the valve body and is perpendicular to the airflow pipe, and the valve body is further provided with a switch assembly for controlling the air output of the air outlet.

[0015] Preferably, the switch assembly is located on the upper side of the airflow pipe, the switch assembly and the air outlet are located on the same horizontal axis and installed on the other side of the valve body, and the switch assembly controls the flow rate of the airflow pipe to the air outlet by moving left and right on the upper side of the airflow pipe, so as to control the amount of air output at the air outlet.

[0016] Preferably, the switch assembly is located on the upper side of the airflow pipe and is on the same longitudinal axis as the airflow pipe. The switch assembly is installed from top to bottom on the upper end of the valve body and is perpendicular to the air outlet port. The switch assembly controls the flow rate of the airflow pipe to the air outlet port by moving up and down on the upper side of the airflow pipe, so as to control the amount of air output at the air outlet port.

[0017] Preferably, the valve body is provided with a connecting plate and a gas cylinder guide plate arranged parallel to the valve body is connected through the connecting plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] A high-pressure gas cylinder valve with a reverse thrust device is provided. When installing a high-pressure gas cylinder, the nozzle is installed at the air inlet port. At the same time, the nozzle pushes the elastic reverse thrust component located at the air inlet port inward, compressing the elastic element. The gas cylinder is then magnetically fixed by the magnetic suction component on the outside of the air inlet port, thus completing the installation of the high-pressure gas cylinder and the gas cylinder valve. At this time, the rebound force of the elastic reverse thrust component is much smaller than the attraction force of the magnetic suction component on the high-pressure gas cylinder.

[0020] When the temperature near the gas cylinder valve and high-pressure gas cylinder rises, the internal gas pressure of the high-pressure gas cylinder increases due to the temperature and pressure. As the gas flows outward, it generates a reaction force, causing the gas cylinder to move in the opposite direction. This is compounded by the rebound force of the elastic push-back component. At this point, the combined pressure exerted on the gas cylinder by the push force of the gas cylinder and the rebound force of the elastic push-back component creates a reverse push force. This reverse push force is greater than the magnetic attraction force on the high-pressure gas cylinder, causing the high-pressure gas cylinder to move outward and disconnect the connection between the high-pressure gas cylinder nozzle and the valve core. Through the cooperation of the elastic push-back component and the magnetic attraction component, a pressure-limiting explosion-proof device is formed, which pushes the high-pressure gas cylinder away from the valve body, thus achieving a safety and explosion-proof function. This type of valve simplifies the connection between the gas cylinder and the stove, making operation more convenient and safer. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a first structural schematic diagram of the valve body in the first embodiment of the present utility model;

[0023] Figure 2 This is a second structural schematic diagram of the valve body in the first embodiment of the present invention;

[0024] Figure 3 This is a third structural schematic diagram of the valve body in the first embodiment of this utility model;

[0025] Figure 4 This is a fourth structural schematic diagram of the valve body in the first embodiment of this utility model;

[0026] Figure 5 This is a first structural schematic diagram of the valve body in the second embodiment of the present utility model;

[0027] Figure 6 This is a second structural schematic diagram of the valve body in the second embodiment of the present utility model;

[0028] In the diagram: 1-valve body; 2-inlet port; 3-outlet port; 4-airflow pipe; 5-valve core assembly; 6-elastic reverse thrust assembly; 7-receiving cavity; 8-magnetic suction component; 9-limiting part; 10-mounting component; 11-mounting base; 12-switch assembly; 13-connecting plate; 14-gas cylinder guide plate; 601-elastic component; 602-moving plate; 603-rubber ring. Detailed Implementation

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] like Figures 1 to 4 As shown in the figure, this is the first embodiment of the present invention. A high-pressure gas cylinder valve with a reverse thrust device includes a valve body 1. The valve body 1 is provided with an air inlet port 2 for communicating with a gas cylinder and an air outlet port 3 for communicating with a gas supply device or a gas consumption device. An air flow pipe 4 for air flow is provided between the air inlet port 2 and the air outlet port 3 inside the valve body 1. A valve core assembly 5 is provided inside the air flow pipe 4, and an elastic reverse thrust assembly 6 is provided outside the air flow pipe 4.

[0031] One end of the valve body 1 is provided with a magnetic suction component 8 that can be connected to a gas cylinder. The magnetic suction component 8 is located outside the air inlet port 2.

[0032] Specifically, the elastic reverse thrust assembly 6 includes an elastic element 601, which is sleeved on the outer ring of the airflow pipe 4. The lower end of the elastic element 601 is provided with a movable plate 602, which is located on one side of the air inlet port 2 and on the outer ring of the end port of the airflow pipe 4.

[0033] The valve body 1 has a receiving cavity 7, and the airflow pipe 4, valve core assembly 5 and elastic reverse thrust assembly 6 are all installed in the receiving cavity 7. The air inlet port 2 is located on the lower side of the receiving cavity 7.

[0034] Furthermore, an installation member 10 is provided on the outside of the airflow pipe 4 to fix the airflow pipe 4 in the receiving cavity 7. The elastic member 601 is located between the installation member 10 and the moving plate 602 and is compressed towards the installation member 10 by the movement of the moving plate 602.

[0035] Meanwhile, a rubber ring 603 is provided at the lower end of the movable plate 602, and a limiting part 9 is provided inward at the air inlet port 2. The rubber ring 603 is located inside the limiting part 9, so that the rubber ring 603 can better fit with the outside of the gas cylinder nozzle, and at the same time improve the sealing performance.

[0036] In this embodiment, the air outlet port 3 is located on the side of the valve body 1 and is perpendicular to the airflow pipe 4. The valve body 1 is also provided with a switch assembly 12 for controlling the air output of the air outlet port 3.

[0037] Its switch assembly 12 is located on the upper side of the airflow pipe 4. The switch assembly 12 and the air outlet port 3 are located on the same horizontal line and installed on the other side of the valve body 1. The switch assembly 12 controls the flow rate of the airflow pipe 4 to the air outlet port 3 by moving left and right on the upper side of the airflow pipe 4, so as to control the amount of air output at the air outlet port 3.

[0038] like Figure 5 and Figure 6As shown in the figure, this is the second embodiment of the present invention. In this embodiment, the switch assembly 12 is located on the upper side of the airflow pipe 4 and is on the same longitudinal axis as the airflow pipe 4. The switch assembly 12 is installed from top to bottom on the upper end of the valve body 1 and is arranged perpendicular to the air outlet port 3. The switch assembly 12 controls the flow rate of the airflow from the airflow pipe 4 to the air outlet port 3 by moving up and down on the upper side of the airflow pipe 4, so as to control the amount of air output at the air outlet port 3.

[0039] In both of the above cases, a recessed mounting base 11 is connected to the outer ring of the valve body 1. The mounting base 11 is recessed towards the air inlet port 2. The magnetic suction component 8 is installed in the recessed mounting base 11. The magnetic suction component 8 only forms a magnetic suction surface on the side in the same direction as the air inlet port 2, which makes it easier to install the magnetic suction component 8 and magnetically attract the magnetic suction component 8 to the gas cylinder.

[0040] In addition, a connecting plate 13 is provided on the valve body 1, and a gas cylinder guide plate 14 arranged parallel to the valve body 1 is connected through the connecting plate 13, which facilitates the connection between the gas cylinder and the valve body 1 and makes it more convenient to use.

[0041] This utility model provides a high-pressure gas cylinder valve with a reverse thrust device. When installing the gas cylinder, the nozzle is installed at the air inlet port 2. At the same time, the nozzle pushes the elastic reverse thrust component 6 located at the air inlet port 2 inward, compressing the elastic element 601. The gas cylinder is then magnetically fixed by the magnetic suction component 8 on the outside of the air inlet port 2. At this time, the rebound force of the elastic reverse thrust component 6 is much smaller than the attraction force of the magnetic suction component 8 on the gas cylinder, thus completing the installation of the gas cylinder and the gas cylinder valve. When the temperature of the gas cylinder valve and the vicinity of the gas cylinder rises, the internal gas pressure of the high-pressure gas cylinder increases due to the influence of temperature and pressure. When the gas flows outward, it generates a reaction force, causing the gas cylinder to move in the opposite direction. At the same time, the rebound force of the elastic reverse thrust component 6 is superimposed. At this time, the pressure formed by the thrust of the gas cylinder and the rebound force of the elastic reverse thrust component 6 on the gas cylinder together forms a reverse thrust force. This reverse thrust force is greater than the attraction force of the magnetic suction component on the high-pressure gas cylinder. The high-pressure gas cylinder moves outward, disconnecting the connection between the gas cylinder nozzle and the valve core, and simultaneously disconnecting the connection between the gas cylinder and the valve body 1, avoiding accidents and greatly improving the safety of the valve body 1.

[0042] This utility model provides a high-pressure gas cylinder valve with a reverse thrust device. When the pressure is too high, the elastic reverse thrust component 6 and the magnetic suction component 8 work together to form an explosion-proof device to prevent the gas cylinder from being ejected from the valve body, thereby playing a safety and explosion-proof role. This valve simplifies the connection between the gas cylinder and the stove, making the operation more convenient and safer.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-pressure gas cylinder valve with a reverse thrust device, characterized in that: The device includes a valve body (1), which has an inlet port (2) for communicating with a gas cylinder and an outlet port (3) for communicating with a gas supply device or a gas consumption device. The interior of the valve body (1) is connected between the inlet port (2) and the outlet port (3) for airflow. The airflow pipe (4) is provided inside the airflow pipe (4) and a valve core assembly (5) is provided inside the airflow pipe (4). An elastic back thrust assembly (6) is provided outside the airflow pipe (4). The valve body (1) is provided with a magnetic suction component (8) that can be connected to a gas cylinder at one end, and the magnetic suction component (8) is located outside the air inlet port (2).

2. A high-pressure gas cylinder valve with a reverse thrust device according to claim 1, characterized in that: The elastic reverse thrust assembly (6) includes an elastic element (601), which is sleeved on the outer ring of the airflow pipe (4). One end of the elastic element (601) is provided with a movable plate (602), which is located on one side of the air inlet port (2) and on the outer ring of the end port of the airflow pipe (4).

3. A high-pressure gas cylinder valve with a reverse thrust device according to claim 2, characterized in that: The valve body (1) is provided with a receiving cavity (7), the airflow pipe (4), the valve core assembly (5) and the elastic reverse thrust assembly (6) are all installed in the receiving cavity (7), and the air inlet port (2) is located on one side of the receiving cavity (7).

4. A high-pressure gas cylinder valve with a reverse thrust device according to claim 3, characterized in that: The airflow pipe (4) is provided with an installation member (10) on the outside to fix the airflow pipe (4) in the receiving cavity (7). The elastic member (601) is located between the installation member (10) and the moving plate (602) and is compressed towards the installation member (10) by the movement of the moving plate (602).

5. A high-pressure gas cylinder valve with a reverse thrust device according to claim 2, characterized in that: The lower end of the movable plate (602) is provided with a rubber ring (603), and a limiting part (9) is provided inward at the air inlet port (2), with the rubber ring (603) located inside the limiting part (9).

6. A high-pressure gas cylinder valve with a reverse thrust device according to claim 2, characterized in that: The valve body (1) has a recessed mounting seat (11) connected to its outer ring. The mounting seat (11) is recessed toward the air inlet port (2). The magnetic suction element (8) is installed in the recessed mounting seat (11).

7. A high-pressure gas cylinder valve with a reverse thrust device according to claim 2, characterized in that: The air outlet (3) is located on the side of the valve body (1) and is perpendicular to the airflow pipe (4). The valve body (1) is also provided with a switch assembly (12) for controlling the air output of the air outlet (3).

8. A high-pressure gas cylinder valve with a reverse thrust device according to claim 7, characterized in that: The switch assembly (12) is located on the upper side of the airflow pipe (4). The switch assembly (12) and the air outlet port (3) are located on the same horizontal axis and installed on the other side of the valve body (1). The switch assembly (12) controls the flow rate of the airflow pipe (4) to the air outlet port (3) by moving left and right on the upper side of the airflow pipe (4), thereby controlling the amount of air output at the air outlet port (3).

9. A high-pressure gas cylinder valve with a reverse thrust device according to claim 7, characterized in that: The switch assembly (12) is located on the upper side of the airflow pipe (4) and is on the same longitudinal axis as the airflow pipe (4). The switch assembly (12) is installed from top to bottom on the upper end of the valve body (1) and is perpendicular to the air outlet port (3). The switch assembly (12) controls the flow rate of the airflow pipe (4) to the air outlet port (3) by moving up and down on the upper side of the airflow pipe (4), thereby controlling the amount of air output at the air outlet port (3).

10. A high-pressure gas cylinder valve with a reverse thrust device according to claim 7, characterized in that: The valve body (1) is provided with a connecting plate (13) and a gas cylinder guide plate (14) is connected to the connecting plate (13) and is arranged parallel to the valve body (1).

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