Safety valve for gas alarm

Abstract

The utility model discloses a safety valve for gas alarm, which relates to the technical field of gas valves, and comprises a valve cover arranged at the top of a valve seat, a pressure relief port arranged at one end of the valve cover, a pressure relief short pipe externally connected with one end of the pressure relief port, a communicating short pipe connected with one end of the pressure relief short pipe, and the pressure relief short pipe is communicated with the inside of the communicating short pipe. A driving impeller is rotationally arranged in the communicating short pipe, and the top of one end of the driving impeller is connected with a knocking assembly. According to the safety valve, due to the fact that the knocking assembly is arranged, leaked fuel gas impacts and drives the impeller to rotate, and therefore the knocking assembly gives out a knocking alarm prompt sound to remind personnel of the situation of fuel gas leakage, the personnel take corresponding emergency measures, losses are further reduced, and the use safety of the safety valve is guaranteed. The problems that an existing gas safety valve is not provided with an alarm device, so that the use safety cannot be guaranteed, and gas leakage cannot be fed back in time are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas valves, and particularly relates to a safety valve for gas alarm. Background Technique

[0002] The gas safety valve is an important component in various gas systems and plays an important role in ensuring gas use safety. When the pressure of the gas system exceeds the target value, the gas safety valve will open to relieve the pressure of the gas system, so that the pressure in the gas system remains stable, ensuring that the system pressure does not exceed the allowable value and avoiding accidents caused by excessive pressure.

[0003] However, most of the existing gas safety valves only have a simple pressure relief function and lack corresponding warning functions, that is, they will not give an alarm reminder when gas leakage is detected, including the gas safety valves for daily household use. The leakage of the gas safety valve is usually caused by excessive system pressure resulting in gas overflowing inside the valve body of the gas safety valve. There is also a situation where after the gas safety valve has been used for a long time, the diaphragm gasket inside the valve body ages, and due to insufficient sealing, it overflows and leaks. Therefore, when the gas safety valve has gas leakage, the gas safety valve cannot remind relevant personnel to take emergency measures and remind people to evacuate. Especially when the working medium is flammable, explosive gas or toxic gas that cannot be sensed by the human senses, the gas safety valve cannot ensure the safety of use.

[0004] Therefore, a safety valve for gas alarm is provided. Content of the Utility Model

[0005] The purpose of the utility model is to provide a safety valve for gas alarm, so as to overcome the defects that the existing gas safety valve has no alarm device, resulting in the inability to ensure the safety of use and timely feedback of gas leakage problems. The specific technical solutions are as follows:

[0006] A safety valve for gas alarm, including a valve seat, a valve cover is arranged on the top of the valve seat, a pressure relief port is arranged at one end of the valve cover, a pressure relief short pipe is connected to the outside of one end of the pressure relief port, a first breathable filter screen is arranged inside one end of the pressure relief short pipe, a connecting short pipe is connected to one end of the pressure relief short pipe, the inside of the pressure relief short pipe and the connecting short pipe are mutually communicated, a second breathable filter screen is arranged inside the other end of the connecting short pipe, a driving impeller is rotatably arranged inside the connecting short pipe, a knocking component is connected to the top of one end of the driving impeller. When the safety valve has gas leakage due to excessive system pressure or aging of the internal diaphragm gasket, the leaked gas enters the connecting short pipe through the pressure relief port and along the pressure relief short pipe, impacts the driving impeller to rotate, so that the knocking component emits a knocking alarm prompt sound.

[0007] Preferably, a connecting rod is arranged on the top of the driving impeller, and the connecting rod is rotatably installed on the inner side wall of the connecting short pipe through a rotating shaft.

[0008] Preferably, the connecting rod is rotatably mounted on the inner side wall of the communicating short pipe through a ball bearing.

[0009] Preferably, the knocking assembly includes a first metal round cover arranged on the outer side wall of the communicating short pipe, a first circular support seat connected to the top of the connecting rod, a first elastic connecting rod connected to the first circular support seat, and a first knocking ball connected to the top of one end of the first elastic connecting rod. The first circular support seat, the first elastic connecting rod, and the first knocking ball are all arranged inside the first metal round cover.

[0010] Preferably, the knocking assembly includes a second metal round cover arranged on the outer side wall of the communicating short pipe, a second Y-shaped support seat connected to the top of the connecting rod, second elastic connecting rods connected to both ends of the second Y-shaped support seat, and a second knocking ball connected to the top of one end of each of the two second elastic connecting rods. The second Y-shaped support seat, the second elastic connecting rods, and the second knocking ball are all arranged inside the second metal round cover.

[0011] Preferably, the first elastic connecting rod and the second elastic connecting rod are made of metal elastic sheets made of metal materials, plastic elastic sheets made of plastic materials, or ordinary tension springs.

[0012] Preferably, the first metal round cover and the second metal round cover are made of pure copper materials or stainless steel materials, and the first knocking ball and the second knocking ball are made of pure copper materials or stainless steel materials.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By providing a knocking assembly, when the leaked gas enters the communicating short pipe through the pressure relief short pipe, the leaked gas with a certain pressure will impact and drive the impeller to rotate, so that the knocking assembly emits a knocking alarm prompt sound to prompt the personnel of the gas leakage situation, enabling the personnel to take corresponding emergency measures to further minimize the loss and ensuring the safety of the use of the safety valve.

[0015] 2. By providing a second Y-shaped support seat in the second embodiment, two second knocking balls are connected thereto, and the second Y-shaped support seat forms an inclined angle. When the connecting rod rotates, the two second knocking balls are closer to the inner side wall of the second metal round cover, thereby improving the knocking sensitivity of the second metal round cover. A small swing caused by a weak gas leakage can also trigger the knocking alarm sound, and the emitted alarm sound is louder and easier to prompt the gas leakage situation. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0017] Figure 1 is the overall sectional structure schematic diagram of the first embodiment of the present utility model.

[0018] Figure 2 is the Figure 1 partial enlarged structure schematic diagram at A of the present utility model.

[0019] Figure 3 is the overall sectional structure schematic diagram of the second embodiment of the present utility model.

[0020] Figure 4 is the Figure 3 partial enlarged structure schematic diagram at B of the present utility model.

[0021] Main reference numeral descriptions:

[0022] 1. Valve seat; 2. Valve cover; 3. Pressure relief port; 4. Pressure relief short pipe; 5. First breathable filter screen; 6. Connecting short pipe; 7. Second breathable filter screen; 8. Driving impeller; 9. Connecting rod; 10. Rotating shaft; 11. First metal round cover; 12. First circular support; 13. First elastic connecting rod; 14. First knocking ball; 15. Second metal round cover; 16. Second Y-shaped support; 17. Second elastic connecting rod; 18. Second knocking ball. Specific embodiments

[0023] Next, the embodiments will be described in detail to enable those skilled in the art to better understand the present utility model:

[0024] Next, the embodiments will be described in detail to enable those skilled in the art to better understand the present utility model:

[0025] A safety valve for gas alarm, as Figures 1 to 4As shown, it includes a valve seat 1, a valve cover 2 is arranged on the top of the valve seat 1, a pressure relief port 3 is arranged at one end of the valve cover 2, a pressure relief short pipe 4 is externally connected to one end of the pressure relief port 3, a first air filter 5 is internally arranged at one end of the pressure relief short pipe 4, when the safety valve leaks gas due to excessive pressure inside or the diaphragm rubber pad is aged and the sealing performance is reduced, the leaked gas will be ejected from the pressure relief port 3, enter the pressure relief short pipe 4, and finally ejected to the outside, and the first air filter 5 is used to isolate impurities.

[0026] A connecting short pipe 6 is connected to one end of the pressure relief short pipe 4, and the pressure relief short pipe 4 and the connecting short pipe 6 are internally connected to each other. A second air permeable filter 7 is arranged inside the other end of the connecting short pipe 6, and the second air permeable filter 7 is used to isolate impurities. A driving impeller 8 is rotatably arranged inside the connecting short pipe 6, and a knocking component is connected to the top of one end of the driving impeller 8. When the leaked gas enters the connecting short pipe 6 through the pressure relief short pipe 4, the leaked gas with a certain pressure will impact the driving impeller 8 to rotate, so that the knocking component will emit a knocking alarm prompt sound to remind personnel of the gas leakage, so that the personnel can take corresponding emergency measures to further minimize the loss.

[0027] A connecting rod 9 is provided on the top of the driving impeller 8. The connecting rod 9 is rotatably mounted on the inner side wall of the connecting short tube 6 through a rotating shaft 10. Furthermore, the connecting rod 9 is rotatably mounted on the inner side wall of the connecting short tube 6 through a ball bearing. By using a ball bearing, the rotation efficiency and sensitivity of the connecting rod 9 can be improved. Because the rotational friction of the ball bearing is smaller, when there is a slight gas leakage in the connecting short tube 6, the connecting rod 9 can be rotated in time, thereby improving the maneuverability of the device.

[0028] like Figure 1 and 2 As shown, the first embodiment of the utility model is shown, and the knocking assembly includes a first metal round cover 11 arranged on the outer side wall of the connecting short tube 6, a first circular support 12 is connected to the top of the connecting rod 9, a first elastic connecting rod 13 is connected to the first circular support 12, a first knocking ball 14 is connected to the top of one end of the first elastic connecting rod 13, and the first circular support 12, the first elastic connecting rod 13 and the first knocking ball 14 are all arranged inside the first metal round cover 11. During operation, when the leaked gas impact drives the impeller 8 to rotate, it drives the connecting rod 9 to rotate synchronously, and because the first elastic connecting rod 13 has a flexible characteristic, it will swing along with the rotation of the connecting rod 9, that is, shaking, and because the first knocking ball 14 has a certain mass, it will increase the swing effect of the first elastic connecting rod 13, so that the first knocking ball 14 will eventually knock on the first metal round cover 11 with the swing movement, thereby generating a knocking alarm sound, thereby achieving the effect of reminding personnel of gas leakage.

[0029] like Figure 3And 4 As shown, the second embodiment of the present utility model is demonstrated. The knocking component includes a second metal dome 15 provided on the outer side wall of the communicating short pipe 6. The top of the connecting rod 9 is connected to a second Y-shaped support 16. Both ends of the second Y-shaped support 16 are connected to second elastic connecting rods 17. The top ends of one ends of the two second elastic connecting rods 17 are connected to a second knocking ball 18. The second Y-shaped support 16, the second elastic connecting rods 17, and the second knocking ball 18 are all arranged inside the second metal dome 15. During operation, when the leaked gas impacts and drives the impeller 8 to rotate, it drives the connecting rod 9 to rotate synchronously. Since the second elastic connecting rod 17 has a flexible characteristic, it will swing, that is, rock, along with the rotation of the connecting rod 9. And because the second knocking ball 18 has a certain mass, it will increase the swing effect of the second elastic connecting rod 17. Finally, the second knocking ball 18 will knock on the second metal dome 15 along with the swing movement, thereby generating a knocking alarm sound, achieving the effect of prompting personnel of gas leakage. At the same time, since second knocking balls 18 are provided at both ends of the second Y-shaped support 16, and the second Y-shaped support 16 forms an inclined angle, that is, when the connecting rod 9 rotates, the two second knocking balls 18 make a circular motion around the center of the connecting rod 9 and are closer to the inner side wall of the second metal dome 15. Therefore, the knocking sensitivity of the second metal dome 15 is improved, and even a small swing caused by a weak gas leakage can trigger the knocking alarm sound, and the alarm sound emitted is louder and easier to prompt the situation of gas leakage.

[0030] In the first and second embodiments, the first elastic connecting rod 13 and the second elastic connecting rod 17 are provided as metal shrapnel made of metal materials, plastic shrapnel made of plastic materials, or ordinary tension springs, all of which endow the elastic connecting rods with flexible characteristics. The first metal dome 11 and the second metal dome 15 are provided as being made of pure copper materials or stainless steel materials. The first knocking ball 14 and the second knocking ball 18 are provided as being made of pure copper materials or stainless steel materials. The materials of pure copper or stainless steel will make the knocking sound generated when the first knocking ball 14 and the second knocking ball 18 knock on the first metal dome 11 and the second metal dome 15 respectively more distinct, thereby improving the clarity and loudness of the alarm sound, making it easier to be detected by personnel. Even when there is noise interference at home or outdoors, personnel can also promptly handle the problem of gas leakage, ensuring safety.

[0031] In summary, by providing the knocking component, when the leaked gas enters the connecting short pipe 6 through the pressure relief short pipe 4, the leaked gas with a certain pressure will impact the driving impeller 8 to rotate, so that the knocking component emits a knocking alarm prompt sound to prompt that there is a gas leakage, enabling personnel to take corresponding emergency measures to further minimize losses and ensuring the safety of the use of the safety valve.

[0032] The foregoing description of specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and obviously, many changes and variations are possible in light of the above teachings. Although embodiments of the present invention have been shown and described, the specific embodiments are merely interpretations of the present invention and not limitations thereof. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can, after reading this specification, make modifications, substitutions, variations, and various different selections and changes that do not make a creative contribution to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A safety valve for gas alarm, comprising a valve seat (1), a valve cover (2) is arranged on the top of the valve seat (1), a pressure relief port (3) is arranged at one end of the valve cover (2), and a pressure relief short pipe (4) is externally connected to one end of the pressure relief port (3), characterized in that: A first air permeable filter (5) is arranged inside one end of the pressure relief short tube (4), and a connecting short tube (6) is connected to one end of the pressure relief short tube (4). The pressure relief short tube (4) and the connecting short tube (6) are internally connected to each other, and a second air permeable filter (7) is arranged inside the other end of the connecting short tube (6). A driving impeller (8) is rotatably arranged inside the connecting short tube (6), and a knocking assembly is connected to the top of one end of the driving impeller (8). When the safety valve leaks gas due to excessive system pressure or aging of the internal diaphragm rubber pad, the leaked gas passes through the pressure relief port (3) and enters the connecting short tube (6) along the pressure relief short tube (4), impacting the driving impeller (8) to rotate, thereby causing the knocking assembly to emit a knocking alarm prompt sound.

2. A gas alarm safety valve according to claim 1, characterized in that: A connecting rod (9) is provided on the top of the driving impeller (8), and the connecting rod (9) is rotatably mounted on the inner side wall of the connecting short pipe (6) via a rotating shaft (10).

3. A gas alarm safety valve according to claim 2, characterized in that: The connecting rod (9) is rotatably mounted on the inner side wall of the connecting short pipe (6) via a ball bearing.

4. A gas alarm safety valve according to claim 2, characterized in that: The knocking assembly comprises a first metal round cover (11) arranged on the outer side wall of the connecting short tube (6); the top of the connecting rod (9) is connected to a first round support (12); the first round support (12) is connected to a first elastic connecting rod (13); the top of one end of the first elastic connecting rod (13) is connected to a first knocking ball (14); the first round support (12), the first elastic connecting rod (13) and the first knocking ball (14) are all arranged inside the first metal round cover (11).

5. A gas alarm safety valve according to claim 2, characterized in that: The knocking assembly comprises a second metal round cover (15) arranged on the outer side wall of the connecting short tube (6), the top of the connecting rod (9) is connected to a second Y-shaped support (16), both ends of the second Y-shaped support (16) are connected to second elastic connecting rods (17), the top of one end of the two second elastic connecting rods (17) is connected to a second knocking ball (18), and the second Y-shaped support (16), the second elastic connecting rod (17) and the second knocking ball (18) are all arranged inside the second metal round cover (15).

6. A gas alarm safety valve according to claim 4, characterized in that: The first elastic connecting rod (13) is configured as a metal spring made of metal material, a plastic spring made of plastic material, or a common tension spring.

7. A gas alarm safety valve according to claim 5, characterized in that: The second elastic connecting rod (17) is configured as a metal spring made of metal material, a plastic spring made of plastic material, or a common tension spring.

8. A gas alarm safety valve according to claim 4, characterized in that: The first metal round cover (11) is configured to be made of pure copper material or stainless steel material, and the first striking ball (14) is configured to be made of pure copper material or stainless steel material.

9. A gas alarm safety valve according to claim 5, characterized in that: The second metal round cover (15) is configured to be made of pure copper material or stainless steel material, and the second striking ball (18) is configured to be made of pure copper material or stainless steel material.

Images