Household natural gas leak-proof detection device

Abstract

The utility model provides a household natural gas leakproof detection device which comprises an outer cover, a sector gear is installed in the outer cover through a sector gear fixing shaft, two valve limiting blocks are fixed on one side of the sector gear, a manual control block is installed on the other side of the sector gear, the sector gear is meshed with a gear, and the gear is meshed with the sector gear. The gear is installed in the outer cover through a gear fixing shaft, the gear is meshed with the rack, a limiting groove is formed in the rack, second limiting blocks are installed on the two sides of the rack, the second limiting block on one side is embedded in the rack movement device shell, and a second spring is installed in the rack movement device shell; the second spring abuts against the rack movement device shell. By means of the gas pipeline control method and device, on the premise that the gas pipeline is prevented from being transformed, the opening and closing state of the gas pipeline can be confirmed, the valve can be automatically closed when gas leaks, and an owner is informed to remotely close the valve of the gas pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic natural gas safety technical field especially, relates to a domestic natural gas leak detection device. BACKGROUND

[0002] Natural gas as a kind of clean, efficient energy, in recent years, the application in family is more and more extensive.It is widely used in cooking, heating, hot water supply and other aspects, brings great convenience for family life.However, with the popularity of natural gas, its safety problem is increasingly highlighted.Natural gas is a flammable gas, once leakage, it can cause fire or explosion and other serious accidents.These accidents not only cause property losses, but also can endanger people's life safety.In traditional technology, it can be realized to the automatic closing of natural gas pipeline by installing self-closing valve, but the pipeline needs to be applied to gas company for reform, and some remote areas do not support the reform of gas pipeline, and because gas water heater valve needs to be always open, so it cannot be equipped with self-closing valve, and many gas leakage accidents are caused by the valve for timely closing, so we need a kind of equipment which does not need to reform gas pipeline and can automatically close valve, so we provide a kind of domestic natural gas leak detection device to solve the above problems. SUMMARY

[0003] The utility model provides a kind of domestic natural gas leak detection device, solve the problem that traditional natural gas leak detection device needs to reform pipeline, cannot automatically close valve when gas leaks, cannot remotely close valve.

[0004] The utility model provides a kind of domestic natural gas leak detection device, including outer cover, the fan gear fixed shaft is installed in the outer cover, and fan gear is installed on one side of the fan gear, and two valve limit blocks are fixed, manual control block is installed on the other side of the fan gear, the fan gear is engaged with gear, the gear is installed in outer cover by gear fixed shaft, the gear is engaged with rack, the rack is limited to groove, second limit block is installed on the both sides of the rack, one side second limit block is embedded in rack movement device shell, second spring is installed in the rack movement device shell, second spring is in contact with the rack movement device shell, the rack is limited to device shell, the limit device shell is fixed in the inner side of outer cover, electromagnet is installed in the limit device shell, first spring is arranged below the electromagnet, first limit block is arranged below the first spring, first spring is in contact with the electromagnet and first limit block, first limit block is embedded in the inner wall of limit device shell, one end of first limit block corresponds with limit groove, control module is installed in the inner side of outer cover, gas alarm is connected to the control module.

[0005] Preferably, the surface of the first limiting block and the limiting groove are in contact with each other and have an insulating layer with lubrication.

[0006] Preferably, the surface of the housing is provided with a fan-shaped groove, and the manual control block just passes through the fan-shaped groove.

[0007] Preferably, pipeline grooves are formed on the upper and lower sides of the housing, and a fixing frame is arranged on one side of the pipeline grooves.

[0008] Preferably, the edge of the housing is provided with a U-shaped groove, and the bottom plate is clamped in the U-shaped groove.

[0009] Preferably, the distance between the two valve limiting blocks is the same as the width of the natural gas valve handle.

[0010] Preferably, the control module is wirelessly connected with the gas alarm.

[0011] As can be seen from the above technical solutions, the utility model provides a domestic natural gas leakage detection device, and when the application is used, first, the bottom plate is pulled out from the housing clamping groove, the housing is sleeved on the gas pipeline valve, the two valve limiting blocks are clamped on the natural gas valve handle, and after pressing, the bottom plate is clamped back into the clamping groove, the equipment is fixed on the valve pipeline through the fixing frame to prevent rotation, and the installation work is completed at this time. When in use, the natural gas valve is in a closed state by default, the manual control block is moved along the groove, the fan-shaped gear drives the gear to rotate, the gear drives the rack to move into the rack movement device shell, and when the limiting groove on the rack just clamps the first limiting block, the gas pipeline is opened at this time, and normal use is started. If the gas alarm receives gas leakage at this time, an alarm is sent, the first limiting block is attracted by the energized electromagnet, the rack is rapidly moved under the action of the second spring, the gear is driven, the gear drives the fan-shaped gear to move reversely, the valve limiting block on the fan-shaped gear clamps the natural gas valve handle to rotate in the closing direction, the valve is quickly closed, and when in use, the gas valve can also be directly controlled by the electromagnet through the keys on the control module or the valve can be remotely closed or the valve opening and closing state can be observed through the wireless control module on the control module.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The valve limiting block clamps the natural gas valve handle, the valve opening and closing can be controlled without modifying the natural gas pipeline, and the universality of the equipment is improved.

[0014] 2. The electromagnet, gear and spring transmission system and the control module are matched with each other, the valve can be automatically and quickly closed when gas leakage occurs, and the owner can be notified in the first time.

[0015] 3. Through the control module, multiple gas alarms can be remotely connected, the opening and closing status of the valve can be remotely observed, and the gas valve can be remotely closed.

[0016] In summary, by using this application, the opening and closing status of the gas pipeline can be confirmed without modifying the gas pipeline. The valve can also be automatically closed when a gas leak occurs, and the owner can be notified to remotely close the gas pipeline valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for implementation. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a top view of the overall structure of a household natural gas leak detection device proposed by the utility model when the valve is closed;

[0019] Figure 2 This is a front view of the overall structure of a household natural gas leak detection device proposed by the utility model when the valve is closed;

[0020] Figure 3 This is a top view of the overall structure of a household natural gas leak detection device proposed by the utility model when the valve is open;

[0021] Figure 4 This is a front view of the overall structure of a household natural gas leak detection device proposed by the utility model when the valve is open;

[0022] Figure 5 This is an appearance diagram of a household natural gas leak detection device proposed by the utility model;

[0023] In the figure: 1. outer cover, 2. electromagnet, 3. first spring, 4. first limit block, 5. limit device housing, 6. second spring, 7. rack motion device housing, 8. second limit block, 9. rack, 10. limit groove, 11. gear, 12. sector gear, 13. valve limit block, 14. control module, 15. gear fixing shaft, 16. sector gear fixing shaft, 17. natural gas pipeline, 18. natural gas valve handle, 19. manual control block, 20. groove, 21. gas alarm, 22 fixing bracket, 23. bottom plate, 24. pipeline groove. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] Referring to Figures 1-5 The utility model provides a domestic natural gas leak detection device for natural gas safety technical field can automatically close the valve and carry out the alarm under the premise of not transforming gas pipeline when gas leaks, specifically, including the cover 1, the cover 1 is fixed through the sector gear fixed shaft 16 and is installed with sector gear 12, the other side of sector gear 12 is installed with manual control block 19, the cover 1 is opened with recess 20, and manual control block 19 just passes through recess 20, and when using, manual control block 19 is dialled to open the valve, and the opening and closing state of the valve can be accurately judged by observing the position of manual control block 19, gear fixed shaft 16 is installed on the inner wall of cover 1, can fix sector gear 12 at the same time, make it rotate freely, two valve limit blocks 13 are fixed on sector gear 12, and the width of two valve limit blocks 13 needs just same with the width of valve, can just hold up the valve when using, sector gear 12 is engaged with gear 11, gear 11 is installed in cover 1 through gear fixed shaft 15, gear 11 is engaged with rack 9, rack 9 is limited with limit slot 10, and second limit block 8 is installed on the both sides of rack 9, one side second limit block 8 is embedded in rack movement device shell 7, second spring 6 is installed in rack movement device shell 7, second spring 6 is in contact with rack movement device shell 7, rack 9 reciprocates in rack movement device shell 7, and second limit block 8 can prevent rack 9 from shaking, rack 9 is limited with limit device shell 5, limit device shell 5 is fixed in the inner side of cover 1, electromagnet 2 is installed in limit device shell 5, first spring 3 is arranged below electromagnet 2, first limit block 4 is arranged below first spring 3, first spring 3 is in contact with electromagnet 2 and first limit block 4, first limit block 4 is embedded with the inner wall of limit device shell 5, and one end of first limit block 4 corresponds with limit slot 10, electromagnet 2 can control the position of first limit block 4, makes it move up and down in limit device shell 5, when electromagnet 2 is electrified, first limit block 4 is attracted by electromagnet 2, and first limit block 4 moves up, first limit block 4 is extracted from limit slot 10, and rack 9 moves forward under the push of second spring 6, further drives the whole system to operate, finally sets valve 18 to closed state, if electromagnet 2 is de-energized, first limit block 4 moves down under the push of spring, if valve 18 is opened at this time, sector gear 12 drives gear 11, gear 11 drives rack 9 and compresses second spring 6, until first limit block 4 just clamps in limit slot 10 in rack 9, at this time, valve 18 will be stably maintained in the open state, the inner side of cover 1 is installed with control module 14, control module 14 is connected with gas alarm 21, control module 14 can be wired with gas alarm 21, but in order to facilitate use and installation, more suggest to carry out wireless connection.

[0026] In the utility model, the surface of the first limiting block 4 and the limiting groove 10 is provided with an insulating layer with lubrication, because the rack 9 and the first limiting block 4 need to slide and rub, so the surface must be lubricated, and in order to avoid sparking and cause safety hazards, metal-to-metal friction must be avoided as much as possible.

[0027] In the utility model, the edge of the cover 1 is provided with a U-shaped groove, and the bottom plate 23 is clamped in the U-shaped groove, because the household gas pipeline is basically installed against a wall, through the installation mode of inserting the bottom plate 23 from the back, the bottom plate can be avoided from being blocked by the wall during installation, the cover 1 is provided with a pipeline groove 24 on the upper and lower sides, a fixing frame 22 is installed on one side of the pipeline groove 24, the whole shell 1 is clamped on the pipeline through the pipeline groove 24, and the fixing frame 22 is installed on the pipeline groove 24 through bolts, so that the whole device is stably installed at the valve.

[0028] As can be seen from the above technical scheme, during use, first, the bottom plate 23 is pulled out from the clamping groove of the cover 1, the cover 1 is sleeved at the gas pipeline valve, the two valve limiting blocks are clamped at the natural gas valve handle 18, the bottom plate 23 is clamped back into the clamping groove after being pressed, the device is fixed on the natural gas pipeline 17 through the fixing frame 22, and the device is prevented from rotating, and at this time, the installation work is completed. During use, the natural gas valve is in a closed state by default, the manual control block 19 is moved along the groove 20, the sector gear 2 drives the gear 11 to rotate, the gear 11 drives the rack 9 to move into the rack movement device shell 7, when the limiting groove 10 on the rack 9 is clamped with the first limiting block 4, at this time, the natural gas valve handle 18 is opened, normal use is started, if the gas alarm 21 receives gas leakage at this time, an alarm is sent, at this time, the electromagnet 2 is electrified, the first limiting block 4 is attracted, the rack 9 is quickly moved under the drive of the second spring 6, the gear 11 is driven, the gear 11 drives the sector gear 12 to move reversely, the valve limiting block 13 on the sector gear 12 clamps the natural gas valve handle 18 and rotates in the closing direction, so that the valve is quickly closed, and during normal use, the gas valve can also be closed by directly controlling the electromagnet 2 through the keys on the control module 14, or the valve can be remotely closed or the opening and closing state of the valve can be observed through the wireless control module on the control module 14.

[0029] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The specification and examples given are considered exemplary only, and the true scope of the application is indicated by the claims. Various alternatives to the embodiments of the application described herein will be apparent to one skilled in the art. It is intended that the true scope of the application be defined by the claims attached hereto, and accordingly, the specification and examples are to be regarded as illustrative and not restrictive. The application is defined by the claims.

[0030] It should be understood that the present application is not limited to the precise construction which has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The implementations of the present application set forth above are by way of example and not intended to be limiting, with the true scope of the present application being indicated by the following claims.

Claims

1. A household natural gas leak detection device, comprising an outer cover (1), characterized in that: A sector gear (12) is installed in the outer cover (1) via a sector gear fixing shaft (16), two valve limit blocks (13) are fixed on one side of the sector gear (12), a manual control block (19) is installed on the other side of the sector gear (12), the sector gear (12) is meshed with a gear (11), the gear (11) is installed in the outer cover (1) via a gear fixing shaft (15), the gear (11) is meshed with a rack (9), a limit groove (10) is provided on the rack (9), second limit blocks (8) are installed on both sides of the rack (9), one side of the second limit block (8) is embedded in the rack motion device housing (7), a second spring (6) is installed in the rack motion device housing (7), and the second spring (6) The rack (9) is in conflict with the rack motion device housing (7), and a limiting device housing (5) is provided on the rack. The limiting device housing (5) is fixed on the inner side of the outer cover (1). An electromagnet (2) is installed in the limiting device housing (5), and a first spring (3) is provided below the electromagnet (2). A first limiting block (4) is provided below the first spring (3). The first spring (3) is in conflict with the electromagnet (2) and the first limiting block (4). The first limiting block (4) is embedded in the inner wall of the limiting device housing (5), and one end of the first limiting block (4) corresponds to the limiting groove (10). A control module (14) is installed on the inner side of the outer cover (1), and the control module (14) is connected to a gas alarm (21).

2. A household natural gas leak detection device according to claim 1, characterized in that: The surfaces where the first limiting block (4) and the limiting groove (10) contact each other have a lubricated insulating layer.

3. A household natural gas leak detection device according to claim 1, characterized in that: The surface of the outer cover (1) is provided with a fan-shaped groove (20), and the manual control block (19) just passes through the fan-shaped groove (20).

4. A household natural gas leak detection device according to claim 3, characterized in that: The outer cover (1) is provided with pipeline grooves (24) on the upper and lower sides, and a fixing frame (22) is installed on one side of the pipeline groove (24).

5. A household natural gas leak detection device according to claim 4, characterized in that: The edge of the outer cover (1) is provided with a U-shaped groove, and the bottom plate (23) is stuck in the U-shaped groove.

6. A household natural gas leak detection device according to claim 1, characterized in that: The distance between the two valve limit blocks (13) is the same as the width of the natural gas valve handle (18).

7. A household natural gas leak detection device according to claim 1, characterized in that: The control module (14) is connected to the gas alarm (21) via wireless communication.

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