Fire prevention and loss stopping safety valve

Abstract

The utility model discloses a fire prevention loss-stopping safety valve which is provided with a middle valve body, a cavity is formed in the middle valve body, an inlet pipe and an outlet pipe are arranged at the left end and the right end of the middle valve body respectively, and an elastic plugging mechanism is arranged in the middle valve body. The elastic plugging mechanism comprises a spring sheath, a compression spring, a plugging core body, a supporting rod, a mercury glass tube and a jacking mechanism, one end of the spring sheath is sealed, the other end of the spring sheath is communicated with an inner cavity of the middle valve body, the compression spring is fixedly installed in the spring sheath, and the movable end of the compression spring is connected with the plugging core body. The plugging core body slides along the inner side wall of the spring sheath, the front end of the plugging core body is connected with the supporting rod, the jacking mechanism is arranged on the outer side wall of the middle valve body and is opposite to the spring sheath, and the mercury glass tube is arranged on the jacking mechanism and is arranged outside the middle valve body; according to the safety valve, through the brand-new structural design, the more efficient fireproof effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of security equipment technology, and in particular to a fire prevention and damage control safety valve. Background Technology

[0002] In the use of gas or natural gas pipelines, there are frequent reports of leaks leading to fires. A large part of these accidents are caused by the failure to promptly and effectively shut off the gas pipeline near the fire source when a gas leak causes a fire, leading to the fire spreading and eventually causing a large-scale fire or even an explosion. Currently, in households, if a gas stove catches fire, people on site usually risk their lives to shut off the valve to control the fire, rather than shutting off the pipeline themselves. Of course, there are now some relatively intelligent devices to control the pipeline, but their application costs are too high and not conducive to widespread use in ordinary households. Therefore, it is still necessary to design a relatively low-cost and highly practical safety valve. Utility Model Content

[0003] The purpose of this invention is to provide a fire prevention and damage control safety valve to address the above-mentioned situation. This safety valve, through a completely new structural design, can achieve a more efficient fire prevention effect.

[0004] The specific solution of this utility model is as follows: a fire prevention and loss mitigation safety valve, comprising an intermediate valve body with an internal cavity. An inlet pipe and an outlet pipe are respectively provided at the left and right ends of the intermediate valve body, forming a connecting channel through the cavity within the intermediate valve body. An elastic sealing mechanism is provided within the intermediate valve body, comprising a spring sleeve, a compression spring, a sealing core, a support rod, a mercury glass tube, and a top support mechanism. The spring sleeve is perpendicular to the connecting channel, with one end of the spring sleeve sealing the other end of the intermediate valve. The inner cavity of the body is connected, and the compression spring is fixedly installed inside the spring sleeve. The movable end of the compression spring is connected to the sealing core and the compression spring is always in a compressed state. The sealing core slides along the inner side wall of the spring sleeve. The front end of the sealing core is connected to the support rod. The top support mechanism is set on the outer side wall of the intermediate valve body and is arranged opposite to the spring sleeve. The mercury glass tube is placed on the top support mechanism and is located outside the intermediate valve body. The support rod passes through the connecting channel and the side wall of the intermediate valve body and is supported and connected to the end of the mercury glass tube.

[0005] Furthermore, the inner wall of the spring sleeve in this invention is provided with a sealing sliding ring, which limits the position of the sealing core and slides and seals with the outer wall of the sealing core.

[0006] Furthermore, the spring sleeve, the sealing core, and the intermediate valve body described in this utility model are all rectangular. When the sealing core is in the sealing state, the longitudinal cross-sectional shape of the sealing core is sealed and fitted with the inner wall of the intermediate valve body. A spring limiting groove is provided on the top surface of the sealing core, and one end of the compression spring is placed in the spring limiting groove. A sealing gasket is provided on the bottom surface of the sealing core.

[0007] Furthermore, the top support mechanism described in this utility model includes several top support rods and a mounting plate. One end of the top support rod is fixed to the mounting plate, and the other end of the top support rod is fixedly connected to the outer wall of the intermediate valve body. A top support bolt is threadedly connected at the middle position of the mounting plate. The front end of the top support bolt rests on one end of the mercury glass tube, and the other end of the mercury glass tube is connected to the end of the support rod.

[0008] Furthermore, in this utility model, a sealing ring is provided on the outer wall where the support rod protrudes from the middle valve body. This sealing ring is an elastic rubber ring.

[0009] Furthermore, both the inlet pipe and the outlet pipe described in this utility model are circular pipes, and each of them is provided with external connecting threads on its outer side wall.

[0010] Furthermore, both ends of the mercury glass tube described in this utility model are provided with connecting pads.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model uses a traditional mercury glass tube as a temperature reaction device, enabling the valve to respond quickly and cut off the gas supply to the pipeline, thus achieving better safety protection.

[0013] 2. This utility model serves as a safety valve. When applied near locations on stoves where fires are likely to occur, it can quickly shut off the gas supply and ensure safety.

[0014] 3. This utility model adopts a structure that combines a compression spring, a mercury glass tube, a sealing core, and a support rod. It also uses a top support bolt to hold the mercury glass tube in place. The overall structure is compact, adjustable in tightness, and flexible in installation position. Its practical application effect is outstanding, and it can be widely promoted and used.

[0015] 4. The product of this utility model can also be used for fire prevention on oil and gas pipelines, which can stop losses in time and ensure safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main cross-section of this utility model;

[0017] Figure 2 This is a side view structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the main cross-sectional structure of this utility model in the blocking state.

[0019] In the diagram: 1—Connecting external thread, 2—Inlet pipe, 3—Intermediate valve body, 4—Spring sleeve, 5—Sealing core, 6—Spring limiting groove, 7—Compression spring, 8—Sealing gasket, 9—Sealing sliding sleeve ring, 10—Outlet pipe, 11—Top support rod, 12—Setting plate, 13—Top support bolt, 14—Connecting pad, 15—Mercury glass tube, 16—Sealing ring, 17—Support rod, 18—Connecting channel. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] See Figures 1-2This utility model is a fire prevention and damage control safety valve, comprising an intermediate valve body 3, the interior of which is hollow. An inlet pipe 2 and an outlet pipe 10 are respectively provided at the left and right ends of the intermediate valve body, forming a connecting channel 18 through the cavity within the intermediate valve body. Furthermore, both the inlet and outlet pipes are circular pipes, and their outer walls are provided with connecting external threads 1. An elastic sealing mechanism is provided within the intermediate valve body, comprising a spring sleeve 4, a compression spring 7, a sealing core 5, a support rod 17, a mercury glass tube 15, and a top support mechanism. Further, both ends of the mercury glass tube are provided with connecting... The connecting plate 14, the spring sleeve and the communicating channel are arranged perpendicularly to each other, one end of the spring sleeve is sealed and the other end is connected to the inner cavity of the intermediate valve body, the compression spring is fixedly installed in the spring sleeve, the movable end of the compression spring is connected to the sealing core and the compression spring is always in a compressed state, the sealing core slides along the inner side wall of the spring sleeve, the front end of the sealing core is connected to the support rod, the top support mechanism is arranged on the outer side wall of the intermediate valve body and is arranged opposite to the spring sleeve, the mercury glass tube is placed on the top support mechanism and placed outside the intermediate valve body, the support rod passes through the communicating channel and the side wall of the intermediate valve body and is supported and connected to the end of the mercury glass tube.

[0023] Furthermore, the top support mechanism described in this utility model includes several top support rods 11 and a mounting plate 12. One end of the top support rod is fixed to the mounting plate, and the other end of the top support rod is fixedly connected to the outer wall of the intermediate valve body. A top support bolt 13 is threadedly connected at the middle position of the mounting plate. The front end of the top support bolt rests on one end of the mercury glass tube, and the other end of the mercury glass tube is connected to the end of the support rod.

[0024] Furthermore, in this utility model, a sealing ring 13 is provided on the outer wall where the support rod protrudes from the middle valve body. This sealing ring is an elastic rubber ring.

[0025] Furthermore, in this embodiment, a sealing sliding ring 9 is provided on the inner wall of the spring sleeve. This sealing sliding ring limits the position of the sealing core and slides in a sealing connection with the outer wall of the sealing core. Furthermore, in this utility model, the spring sleeve 4, the sealing core, and the intermediate valve body are all rectangular parallelepipeds. When the sealing core is in a sealing state, the longitudinal cross-sectional shape of the sealing core is sealed and fitted to the inner wall of the intermediate valve body. A spring limiting groove 6 is provided on the top surface of the sealing core, and one end of the compression spring is placed in the spring limiting groove. A sealing gasket 8 is provided on the bottom surface of the sealing core.

[0026] In practical use, this invention is typically installed on a pipe relatively close to the heat source. The external threads at both ends of the inlet and outlet pipes can be easily connected to the gas pipeline, while the mercury glass tube is placed in the air outside the pipeline. By rotating the top support bolt, the distance of the mercury glass tube is adjusted, which in turn drives the support rod to support the sealing core upward. At this time, the connection channel is unobstructed, and the gas can flow normally.

[0027] If a sudden fire occurs near the stove, the temperature of the surrounding air will rise rapidly. The mercury in the mercury glass tube is highly sensitive to temperature (mercury glass tubes used for alarms are readily available on the market, and they are not fully filled with mercury). Once a fire occurs nearby, the mercury glass tube will quickly burst. At this point, the support rod, losing the support of the mercury glass tube, will rapidly, under the force of the compression spring, cause the sealing core to fall and block the passage of the intermediate valve body. See [link to relevant documentation]. Figure 3 As shown, the inlet and outlet pipes will be quickly cut off at this time, and the gas will no longer flow, thus playing a safety protection role.

[0028] The compression spring in this invention remains compressed throughout the entire process, thus ensuring that the sealing core has the sealing pressure when blocking the pipe.

[0029] In this invention, the vertical length of the sealing core is designed to be slightly larger than the inner diameter of the tube, so that... Figure 3 As shown, when the sealing core is installed, it can slide down normally along the sealing sleeve without displacement or misalignment, ensuring the sealing effect.

[0030] In this invention, the top support rods are arranged at intervals, and the mercury glass tube is essentially exposed to the air. In the event of a fire, this ensures that the mercury glass tube is always in contact with the high-temperature area of ​​the outside environment, so that the mercury glass tube can function.

[0031] This invention utilizes a traditional mercury glass tube as a temperature-responding device, enabling the valve to respond rapidly and quickly cut off the gas supply, thus providing better safety protection. As a safety valve, when applied near areas of stoves prone to ignition, this invention can quickly shut off the gas supply and ensure safety.

[0032] This utility model adopts a structure that combines a compression spring, a mercury glass tube, a sealing core, and a support rod. It also uses a top support bolt to hold the mercury glass tube in place. The overall structure is compact, adjustable in tightness, and flexible in installation position. Its practical application effect is outstanding, and it can be widely promoted and used.

Claims

1. A fire prevention and damage control safety valve, characterized in that: The device comprises an intermediate valve body with an internal cavity. An inlet pipe and an outlet pipe are respectively located at the left and right ends of the intermediate valve body, forming a connecting channel through the cavity. An elastic sealing mechanism is installed within the intermediate valve body. This mechanism includes a spring sleeve, a compression spring, a sealing core, a support rod, a mercury glass tube, and a top support mechanism. The spring sleeve is perpendicular to the connecting channel, with one end sealing and the other end connected to the internal cavity of the intermediate valve body. The compression spring is fixedly installed inside the spring sleeve, and its movable end is connected to the sealing core, ensuring the spring is always compressed. The sealing core slides along the inner wall of the spring sleeve, and its front end is connected to the support rod. The top support mechanism is located on the outer wall of the intermediate valve body and is positioned opposite the spring sleeve. The mercury glass tube is mounted on the top support mechanism and placed outside the intermediate valve body. The support rod passes through the connecting channel and the side wall of the intermediate valve body, extending outwards to support the end of the mercury glass tube.

2. The fire prevention and damage control safety valve according to claim 1, characterized in that: The inner wall of the spring sleeve is also provided with a sealing sliding ring, which limits the position of the sealing core and slides and seals with the outer wall of the sealing core.

3. A fire prevention and damage control safety valve according to claim 1, characterized in that: The spring sleeve, the sealing core, and the intermediate valve body are all rectangular. When the sealing core is in the sealing state, the longitudinal cross-sectional shape of the sealing core is sealed and fitted with the inner wall of the intermediate valve body. The top surface of the sealing core is provided with a spring limiting groove, and one end of the compression spring is placed in the spring limiting groove. A sealing gasket is provided on the bottom surface of the sealing core.

4. A fire prevention and damage control safety valve according to claim 1, characterized in that: The top support mechanism includes several top support rods and a mounting plate. One end of the top support rod is fixed to the mounting plate, and the other end of the top support rod is fixedly connected to the outer wall of the intermediate valve body. A top support bolt is threadedly connected to the middle position of the mounting plate. The front end of the top support bolt rests on one end of the mercury glass tube, and the other end of the mercury glass tube is connected to the end of the support rod.

5. A fire prevention and damage control safety valve according to claim 1, characterized in that: A sealing ring, which is an elastic rubber ring, is also provided on the outer wall where the support rod passes through the middle valve body.

6. A fire prevention and damage control safety valve according to claim 1, characterized in that: Both the inlet pipe and the outlet pipe are circular pipes, and each has external threads on its outer side wall.

7. A fire prevention and damage control safety valve according to claim 1, characterized in that: Both ends of the mercury glass tube are equipped with connecting pads.

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