Gas valve leakage alarm device convenient to install

By designing an upper and lower cover connection assembly on the gas valve and incorporating a built-in detection mechanism, the problem of gas valve leaks being difficult to detect is solved, enabling timely alarm of gas leaks and enhancing safety.

CN224137787UActive Publication Date: 2026-04-17GUANGZHOU YUANJING SECURITY EVALUATION & TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU YUANJING SECURITY EVALUATION & TESTING CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

There is a lack of effective alarm devices when existing gas valves leak, especially for outdoor valves where leaking gas is not easily detected.

Method used

Design an easy-to-install gas valve leak alarm device, including an upper cover and a lower cover, which are sealed and fixed to the valve by a connecting component. It has a built-in detection mechanism and uses sensors and alarms to monitor gas leaks in real time.

Benefits of technology

It enables timely alarm for gas valve leaks, has a simple structure, is easy to install, and enhances gas safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gas valve leakage alarm device convenient to install. The gas valve leakage alarm device comprises an upper cover, a lower cover, a detection mechanism and a plurality of connecting assemblies. The upper cover and the lower cover are connected through the connecting assemblies, and a sealed space is formed by the upper cover and the lower cover and wraps the outer contour of the gas valve. If the gas valve leaks gas, the leaked gas can enter the detection mechanism, and the detection mechanism captures the gas and carries out gas leakage alarm processing. The device is convenient to install, the upper cover only needs to be arranged on the gas valve in a covering mode from top to bottom, the lower cover only needs to be arranged on the gas valve in a covering mode from bottom to top, and the upper cover and the lower cover are connected through the connecting assembly. The device is simple in structure, convenient to install and high in practicability. The device has the characteristics of simple structure, convenience in operation and the like.
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Description

Technical Field

[0001] This utility model relates to the field of gas safety technology, specifically to a gas valve leak alarm device that is easy to install. Background Technology

[0002] Gas fuels are a general term for gaseous fuels that can burn and release heat for use by residents and industrial enterprises. There are many types of gas fuels, mainly including natural gas, manufactured gas, liquefied petroleum gas (LPG), biogas, and coal gasification. Natural gas is one of the main energy sources in people's daily lives, providing heat for residents. However, natural gas also has certain hazards, especially in the event of a leak.

[0003] Generally, gas valves are installed outdoors. If there is a leak, the leaking gas is not easily detected by the alarm device. Therefore, it is necessary to design an alarm device that is installed close to the gas valve and can sensitively detect leaks. Utility Model Content

[0004] According to one aspect of this utility model, a gas valve leakage alarm device that is easy to install is provided, which is installed on a gas valve and includes...

[0005] The upper cover is installed on the upper part of the gas valve from top to bottom;

[0006] The lower cover is installed from bottom to top on the lower part of the gas valve;

[0007] The testing facility is located on the lower cover;

[0008] Several connecting components are distributed between the upper and lower covers, located at the edges of the upper and lower covers.

[0009] Several connecting components connect the upper and lower covers, which together form a sealed space and enclose the outer contour of the gas valve.

[0010] This invention provides a gas leak alarm device that is conveniently installed on a gas valve. If a gas leak occurs, the leaking gas enters the detection mechanism, which captures the gas and triggers an alarm. The device is easy to install; simply place the upper cover over the gas valve from top to bottom and the lower cover over the gas valve from bottom to top, connecting the upper and lower covers using a connecting assembly. This device has a simple structure, is easy to install, and is highly practical.

[0011] In some embodiments, the upper cover has a first semicircular groove and a second semicircular groove on both sides, and the lower cover has a third semicircular groove and a fourth semicircular groove on both sides; the first semicircular groove and the third semicircular groove are joined end to end to form a first circular groove, and the second semicircular groove and the fourth semicircular groove are joined end to end to form a second circular groove.

[0012] Therefore, the gas valve's inlet pipe extends from the first circular groove, and the gas valve's outlet pipe extends from the second circular groove.

[0013] In some embodiments, a first sealing ring is provided in the first circular groove, and a second sealing ring is provided in the second circular groove.

[0014] Thus, the first sealing ring acts between the air inlet pipe and the first circular groove, and the second sealing ring acts between the second circular groove and the air outlet pipe, forming a sealed cavity between the upper and lower covers.

[0015] In some embodiments, the inner contour of the upper cover is part of the upper outer contour of the gas valve, and the inner contour of the upper cover fits against the upper outer contour of the gas valve.

[0016] This reduces the overall size of the device and facilitates its installation.

[0017] In some embodiments, the upper end of the cover has a through hole, through which the upper safety bolt of the gas valve penetrates and is exposed outside the cover.

[0018] Therefore, the safety bolt is exposed outside the device, ensuring its normal use.

[0019] In some embodiments, a third sealing ring is provided on the inner edge of the through hole, and the third sealing ring acts between the upper cover and the safety bolt.

[0020] This creates a sealed cavity between the upper and lower covers.

[0021] In some embodiments, the lower cover includes an integrally formed contoured cover and a detection chamber. The contoured cover is located on the upper surface of the detection chamber and is connected to the detection chamber. The detection mechanism is located inside the detection chamber.

[0022] Therefore, the lower cover consists of a contoured cover and a detection chamber. The contoured cover is fitted to the gas valve, and the detection chamber is the cavity for installing the detection mechanism.

[0023] In some embodiments, the upper inner side of the contour cover is provided with several sealing strips, which act between the upper cover and the contour cover.

[0024] This creates a sealed cavity between the upper and lower covers.

[0025] In some implementations, the detection mechanism includes a power supply, an alarm, a sensor, and a control panel. The power supply, alarm, sensor, and control panel are all located inside the detection chamber, and the power supply, alarm, sensor, and control panel are connected to the control panel.

[0026] Therefore, the testing organization consists of the above-mentioned structure.

[0027] In some embodiments, the lower end of the upper cover is provided with a plurality of connecting blocks, and the upper end of the lower cover is provided with a plurality of limiting grooves corresponding to the plurality of connecting blocks. The connecting blocks are embedded in the corresponding limiting grooves, and the connecting components are disposed between the connecting blocks and the limiting grooves.

[0028] Therefore, the upper and lower covers are aligned by the limiting cooperation of the connecting block and the limiting groove, and are connected by the connecting component to ensure accurate connection of the upper and lower covers. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a gas valve leakage alarm device that is easy to install, according to one embodiment of the present invention.

[0030] Figure 2 for Figure 1 The diagram shows a three-dimensional structural representation of an easily installable gas valve leak alarm device in an explosion state.

[0031] Figure 3 for Figure 1 The diagram shows a top view of a gas valve leak alarm device that is easy to install.

[0032] Figure 4 for Figure 3 The diagram shows a cross-sectional view of a gas valve leak alarm device that is easy to install, along the AA direction.

[0033] The following numbers are used in the diagram: 100-Upper cover, 101-First semicircular groove, 102-Second semicircular groove, 103-Through hole, 104-Connecting block, 200-Lower cover, 201-Third semicircular groove, 202-Fourth semicircular groove, 203-Limiting groove, 210-Shaped cover, 211-Limiting strip, 220-Detection chamber, 300-Detection mechanism, 310-Power supply, 320-Alarm, 330-Sensor, 340-Control panel, 400-Connecting assembly, 500-First sealing ring, 600-Second sealing ring, 700-Third sealing ring, 800-Sealing strip, 1-First circular groove, 2-Second circular groove, 900-Gas valve, 910-Inlet pipe, 920-Outlet pipe, 930-Safety bolt. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] Figure 1-2 The illustration schematically shows an easy-to-install gas valve 900 leakage alarm device according to one embodiment of the present invention. The device is installed on the gas valve 900 and can sound an alarm when a gas valve 900 leaks.

[0036] Combination Figure 1 , 23.4. This device includes an upper cover 100, a lower cover 200, a detection mechanism 300, and several connecting components 400. The upper cover 100 covers the upper part of the gas valve 900 from top to bottom; the lower cover 200 covers the lower part of the gas valve 900 from bottom to top; the detection mechanism 300 is located inside the lower cover 200; the several connecting components 400 are distributed between the upper cover 100 and the lower cover 200, located at the edges of the upper cover 100 and the lower cover 200. The several connecting components 400 connect the upper cover 100 and the lower cover 200, forming a sealed space and wrapping the outer contour of the gas valve 900.

[0037] If gas valve 900 leaks gas, the leaking gas can enter the detection unit 300, which will capture the gas and trigger a gas leak alarm.

[0038] Combination Figure 2 and 4 The upper cover 100 has a first semicircular groove 101 and a second semicircular groove 102 on both sides, and the lower cover 200 has a third semicircular groove 201 and a fourth semicircular groove 202 on both sides. The first semicircular groove 101 and the third semicircular groove 201 are joined end to end to form a first circular groove 1, and the second semicircular groove 102 and the fourth semicircular groove 202 are joined end to end to form a second circular groove 2.

[0039] The gas valve 900 has an inlet pipe 910 and an outlet pipe 920 on both sides. The first circular groove 1 corresponds to the inlet pipe 910 and the second circular groove 2 corresponds to the outlet pipe 920. The inlet pipe 910 extends from the first circular groove 1 and the outlet pipe 920 extends from the second circular groove 2.

[0040] Combination Figure 2 and 4 A first sealing ring 500 is provided in the first circular groove 1, and a second sealing ring 600 is provided in the second circular groove 2. The first sealing ring 500 acts between the air inlet pipe 910 and the first circular groove 1, and the second sealing ring 600 acts between the second circular groove 2 and the air outlet pipe 920. This forms a sealed cavity between the upper cover 100 and the lower cover 200.

[0041] Combination Figure 2 and 4 The inner contour of the upper cover 100 is part of the upper outer contour of the gas valve 900, and the inner contour of the upper cover 100 fits snugly against the upper outer contour of the gas valve 900. This reduces the overall size of the device and facilitates its installation.

[0042] Combination Figure 2 and 4The upper end of the cover 100 is provided with a through hole 103, and the upper end safety bolt 930 of the gas valve 900 penetrates the through hole 103 and is exposed outside the cover 100. The safety bolt 930 is exposed outside the device to ensure the normal use of the safety bolt 930.

[0043] Combination Figure 2 and 4 A third sealing ring 700 is provided on the inner edge of the through hole 103, and the third sealing ring 700 acts between the upper cover 100 and the safety bolt 930, so that a sealed cavity is formed between the upper cover 100 and the lower cover 200.

[0044] Combination Figure 2 and 4 The lower cover 200 includes an integrally formed contoured cover 210 and a detection chamber 220. The contoured cover 210 is located on the upper surface of the detection chamber 220 and is connected to the detection chamber 220. The detection mechanism 300 is located inside the detection chamber 220. The lower cover 200 consists of the contoured cover 210 and the detection chamber 220. The contoured cover 210 is installed in close contact with the gas valve 900, and the detection chamber 220 is the cavity for installing the detection mechanism 300.

[0045] Combination Figure 2 and 4 The upper end of the contoured cover 210 is provided with two limiting strips 211, which are located on opposite outer sides of the contoured cover 210 and are used to limit the connection of the upper cover 100. A sealing strip 800 is provided on the inner side of the upper end of the contoured cover 210, which acts between the upper cover 100 and the contoured cover 210, forming a sealed cavity between the upper cover 100 and the lower cover 200. In this embodiment, the inner contour of the contoured cover 210 is a part of the outer contour of the lower portion of the gas valve 900.

[0046] Combination Figure 2 and 4 The detection mechanism 300 includes a power supply 310, an alarm 320, a sensor 330, and a control panel 340. The power supply 310, alarm 320, sensor 330, and control panel 340 are all located within the detection chamber 220 and are connected to the control panel 340. A partition is installed inside the detection chamber 220. The sensor 330 is located at the top of the detection chamber 220, above the partition, thus facilitating the monitoring of accumulated gas. The power supply 310, alarm 320, and control panel 340 are all located below the partition inside the detection chamber 220.

[0047] In this embodiment, the alarm 320 is a common buzzer alarm 320; the control panel 340 is a PLC control panel 340, which stands for Programmable Logic Controller; and the sensor 330 is a multispectral gas sensor 330, configured to trigger an alarm when the methane concentration exceeds 1% vol.

[0048] Combination Figure 2 and 4 The lower end of the upper cover 100 is provided with several connecting blocks 104, and the upper end of the lower cover 200 is provided with several limiting grooves 203 corresponding to the connecting blocks 104. The connecting blocks 104 are embedded in the corresponding limiting grooves 203, and the connecting component 400 is disposed between the connecting blocks 104 and the limiting grooves 203. The upper cover 100 and the lower cover 200 are aligned by the limiting cooperation of the connecting blocks 104 and the limiting grooves 203, and are connected by the connecting component 400 to ensure accurate connection of the upper cover 100 and the lower cover 200.

[0049] In this embodiment, the connecting component 400 is a nut and a screw. The lower end of the limiting groove 203 is provided with an installation groove. The nut is placed inside the installation groove. The connecting block 104 is provided with a connecting hole. The screw passes through the connecting hole and connects with the nut.

[0050] In this embodiment, the first sealing ring 500, the second sealing ring 600, the third sealing ring 700, and the sealing strip 800 are all fluororubber, the first sealing ring 500, the second sealing ring 600, and the third sealing ring 700 are all "O-rings", and the sealing strip 800 is a flat sealing strip 800.

[0051] This device is easy to install. Simply place the upper cover 100 over the gas valve 900 from top to bottom, and the lower cover 200 over the gas valve 900 from bottom to top, then connect the upper cover 100 and the lower cover 200 using the connecting assembly 400. This device has a simple structure, is easy to install, and is highly practical. This utility model features a simple structure and convenient operation.

[0052] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A gas valve leak alarm device that is easy to install, installed on a gas valve (900), characterized in that, include The upper cover (100) covers the upper part of the gas valve (900) from top to bottom; The lower cover (200) covers the lower part of the gas valve (900) from bottom to top; The testing facility (300) is located on the lower cover (200); Several connecting components (400) are distributed between the upper cover (100) and the lower cover (200), located at the edges of the upper cover (100) and the lower cover (200). Several of the connecting components (400) connect the upper cover (100) and the lower cover (200), which form a sealed space and enclose the outer contour of the gas valve (900).

2. A gas valve leak alarm device for easy installation according to claim 1, characterized in that, The upper cover (100) is provided with a first semi-circular groove (101) and a second semi-circular groove (102) on both sides, and the lower cover (200) is provided with a third semi-circular groove (201) and a fourth semi-circular groove (202) on both sides; the first semi-circular groove (101) and the third semi-circular groove (201) are joined end to end to form a first circular groove (1), and the second semi-circular groove (102) and the fourth semi-circular groove (202) are joined end to end to form a second circular groove (2).

3. A gas valve leak alarm device for easy installation according to claim 2, characterized in that The first circular groove (1) is provided with a first sealing ring (500), and the second circular groove (2) is provided with a second sealing ring (600).

4. A gas valve leak alarm device for easy installation according to claim 1, characterized in that, The inner contour of the upper cover (100) is part of the upper outer contour of the gas valve (900), and the inner contour of the upper cover (100) fits against the upper outer contour of the gas valve (900).

5. A gas valve leak alarm device for easy installation according to claim 4, characterized in that The upper end of the cover (100) is provided with a through hole (103), and the upper end safety bolt (930) of the gas valve (900) penetrates the through hole (103) and is exposed outside the cover (100).

6. A gas valve leak alarm device for easy installation according to claim 5, characterized in that The inner edge of the through hole (103) is provided with a third sealing ring (700), which acts between the upper cover (100) and the safety bolt (930).

7. A gas valve leak alarm device for easy installation according to claim 1, characterized in that, The lower cover (200) includes an integrally formed contour cover (210) and a detection chamber (220). The contour cover (210) is located on the upper surface of the detection chamber (220) and is connected to the detection chamber (220). The detection mechanism (300) is located inside the detection chamber (220).

8. A gas valve leak alarm device for easy installation according to claim 7, characterized in that The upper inner side of the contour cover (210) is provided with a sealing strip (800), which acts between the upper cover (100) and the contour cover (210).

9. A gas valve leak alarm apparatus for easy installation according to claim 8, wherein The detection mechanism (300) includes a power supply (310), an alarm (320), a sensor (330), and a control panel (340). The power supply (310), alarm (320), sensor (330), and control panel (340) are all located inside the detection chamber (220), and the power supply (310), alarm (320), sensor (330) are connected to the control panel (340).

10. A gas valve leak alarm device for easy installation according to any one of claims 1-8, characterized in that, The lower end of the upper cover (100) is provided with a plurality of connecting blocks (104), and the upper end of the lower cover (200) is provided with a plurality of limiting grooves (203) corresponding to the plurality of connecting blocks (104). The connecting blocks (104) are embedded in the corresponding limiting grooves (203), and the connecting component (400) is disposed between the connecting blocks (104) and the limiting grooves (203).