CN214745020U

CN214745020U - Natural gas leakage alarm device

Info

Publication number: CN214745020U
Application number: CN202120510572.XU
Authority: CN
Inventors: 何力; 罗小兵; 詹华英
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-11-16
Anticipated expiration: 2031-03-10

Abstract

The utility model belongs to the technical field of alarm devices, in particular to a natural gas leakage alarm device, which comprises a first bracket, the inner side of the first bracket is fixedly connected with a thrust spring, the other end of the thrust spring is fixedly connected with a stop block, the top end of the stop block is fixedly connected with a slide bar, the outer side of the slide bar is connected with the first bracket in a sliding way, the inner side of the first bracket is fixedly connected with a first switch, the inner side of the first bracket is connected with a second bracket in a sliding way, the inner side of the second bracket is fixedly connected with a second switch, when natural gas in the natural gas valve well leaks, the pressure in the valve well is higher than the external air pressure, the stop block is pushed to move upwards, so that the sliding rod moves upwards, the sliding rod leaks from the first support, and the scale marks on the sliding rod can reflect the pressure of the leaked natural gas in the valve well, so that the rescue workers can observe the pressure conveniently.

Description

Natural gas leakage alarm device

Technical Field

The utility model belongs to the technical field of alarm device, concretely relates to natural gas leakage alarm device.

Background

Often can set up multiunit valve well in city natural gas line lays the in-process, it is convenient when the valve well is that pipeline and underground piping's valve is in order to open and close partial pipe network operation or maintenance operation at needs, a well of setting, be provided with the valve with natural gas line intercommunication in the valve well, the top of valve well is provided with the natural gas well lid, general natural gas well lid is circular cast iron well lid, the well lid only plays the effect of covering the well head.

The prior art has the following problems:

1. the natural gas well lid on the current market cannot find the leakage of the natural gas in time, so that the environment pollution is easily caused and the personal safety is easily harmed;

2. when natural gas leaks, the pressure of the natural gas in the valve well cannot be reflected in time by the conventional natural gas well cover on the market, so that rescue workers cannot solve the problem according to actual conditions.

In order to solve the problem, the application provides a natural gas leakage alarm device.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a natural gas leakage alarm device has the installation simply, and the maintenance cost is low, characteristics that the practicality is strong.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a natural gas leakage alarm device, includes first support, the inboard fixedly connected with thrust spring of first support, thrust spring's other end fixedly connected with dog, dog top fixedly connected with slide bar, the slide bar outside with first support sliding connection, the inboard fixedly connected with first switch of first support, the inboard sliding connection of first support has the second support, the inboard fixedly connected with second switch of second support, the inboard sliding connection of second support has the third support, third support top fixedly connected with alarm, the alarm outside with second support sliding connection.

As the utility model relates to a natural gas leakage alarm device is preferred, slide bar outside fixedly connected with scale mark.

As the utility model relates to a natural gas leakage alarm device is preferred, first spout has been seted up to first support inboard, the slide bar outside with the first spout inside wall sliding connection of first support.

As the utility model relates to a natural gas leakage alarm device is preferred, first standing groove has been seted up to first support inboard, the second support outside with the first standing groove inside wall sliding connection of first support.

As the utility model relates to a natural gas leakage alarm device is preferred, the second standing groove has been seted up to the second support inboard, the third support outside with the second standing groove inside wall sliding connection of second support.

As the utility model relates to a natural gas leakage alarm device is preferred, the second spout has been seted up to second support inboard, the alarm outside with the second spout inside wall sliding connection of second support.

As the utility model relates to a natural gas leakage alarm device is preferred, first support top end face with the top face of slide bar is on same horizontal plane, the top face of slide bar with the top face of second support is on same horizontal plane, the top face of second support with the top face of alarm is on same horizontal plane.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when natural gas in the natural gas valve well leaks, the pressure in the valve well is larger than the external air pressure, when the pressure in the valve well is larger than the self gravity of the third support, the third support moves upwards, the second switch is pressed in the upward movement process of the third support, the alarm starts an external alarm, when the natural gas in the valve well leaks seriously, the pressure in the valve well is larger than the gravity of the second support, the second support moves upwards, the first switch is pressed in the upward movement process of the second support, the alarm starts a higher-level alarm function, and the alarm range is wider.

2. The first support is fixed on a valve well to be installed, under the action of thrust of a thrust spring, the sliding rod is contracted in a first sliding groove of the first support, the second support of the first support and the top end face of the alarm are on the same horizontal plane under the action of gravity, when natural gas in the natural gas valve well leaks, the pressure in the valve well is greater than external air pressure, the stop block is pushed to move upwards, the sliding rod moves upwards, the sliding rod leaks from the first support 1, the scale lines on the sliding rod can reflect the natural gas pressure leaked in the valve well, and the natural gas pressure is convenient for a rescuer to observe.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of an installation structure of the thrust spring of the present invention;

fig. 3 is a schematic view of the mounting structure of the second bracket of the present invention;

FIG. 4 is a schematic view of the installation structure of the alarm of the present invention;

in the figure: 1. a first bracket; 2. a thrust spring; 3. a stopper; 4. a slide bar; 5. a first switch; 6. a second bracket; 7. a second switch; 8. a third support; 9. an alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Please refer to fig. 1-4, the utility model provides a natural gas leakage alarm device, including first support 1, the inboard fixedly connected with thrust spring 2 of first support 1, thrust spring 2's other end fixedly connected with

dog

3, 3 top fixedly connected with slide bar 4 of dog, slide bar 4 outside and 1 sliding connection of first support, the inboard fixedly connected with first switch 5 of first support 1, the inboard sliding connection of first support 1 has second support 6, the inboard fixedly connected with second switch 7 of second support 6, the inboard sliding connection of second support 6 has

third support

8, 8 top fixedly connected with alarms 9 of third support, the alarm 9 outside and 6 sliding connection of second support.

In this embodiment: the first support 1 is fixed on a valve well to be installed, the sliding rod 4 is contracted in the first sliding groove of the first support 1 under the action of the thrust spring 2, and the top end faces of the second support 6 of the first support 1 and the alarm 9 are on the same horizontal plane under the action of gravity, so that passing personnel and vehicles can stably run.

In an alternative embodiment, the outside of the sliding rod 4 is fixedly connected with scale marks.

In this embodiment: the slide bar 4 upwards moves, and the slide bar 4 spills from first support 1, and the scale mark on the slide bar 4 can reflect the natural gas pressure that leaks in the valve well, makes things convenient for the rescuer to observe.

In an alternative embodiment, the first bracket 1 is provided with a first sliding slot on the inner side, and the outer side of the sliding rod 4 is slidably connected with the inner side wall of the first sliding slot of the first bracket 1.

In this embodiment: the sliding rod 4 slides in the first sliding groove of the first support 1, so that the rescuers can observe scale marks on the sliding rod 4 to know the pressure of natural gas in the valve well.

In an alternative embodiment, the first bracket 1 is provided with a first placing groove on the inner side, and the outer side of the second bracket 6 is slidably connected with the inner side wall of the first placing groove of the first bracket 1.

In this embodiment: the pressure in the valve well is greater than the gravity of the second support 6, so that the second support 6 moves upwards, the first switch 5 on the first support 1 is pressed in the upward movement process of the second support 6, the alarm 9 starts a higher-level alarm function, and the alarm range is wider.

In an alternative embodiment, the second bracket 6 is provided with a second placing groove on the inner side, and the outer side of the third bracket 8 is slidably connected with the inner side wall of the second placing groove of the second bracket 6.

In this embodiment: when natural gas in the natural gas valve well leaks, the pressure in the valve well is greater than the external air pressure, when the pressure in the valve well is greater than the self-gravity of the third support 8, the third support 8 moves upwards, the second switch 7 on the second support 6 is pressed in the upward movement process of the third support 8, and the alarm 9 starts to give an alarm to the outside.

In an optional embodiment, a second sliding groove is formed in the inner side of the second bracket 6, and the outer side of the alarm 9 is slidably connected with the inner side wall of the second sliding groove of the second bracket 6.

In this embodiment: by pressing the first switch 5 or the second switch 7, the primary alarm and the secondary alarm of the alarm 9 on the second bracket 6 can be activated, with different alarm intensities.

In an alternative embodiment, the top end face of the first bracket 1 is on the same horizontal plane with the top end face of the slide rod 4, the top end face of the slide rod 4 is on the same horizontal plane with the top end face of the second bracket 6, and the top end face of the second bracket 6 is on the same horizontal plane with the top end face of the alarm 9.

In this embodiment: when natural gas does not leak, the first bracket 1, the sliding rod 4, the second bracket 6 and the alarm 9 are on the same horizontal plane, so that passing personnel and vehicles can run smoothly.

The utility model discloses a theory of operation and use flow: the device uses an external power supply to supply power, a power supply operation device is connected, a first support 1 is fixed on a valve well to be installed, under the action of the thrust of a thrust spring 2, a sliding rod 4 is contracted in a first sliding groove of the first support 1, under the action of gravity, the top end faces of a second support 6 of the first support 1 and an alarm 9 are on the same horizontal plane, so that passing personnel and vehicles can stably run, when natural gas in the valve well leaks, the pressure in the valve well is greater than the external air pressure, when the pressure in the valve well is greater than the self gravity of the third support 8, the third support 8 moves upwards, a second switch 7 is pressed in the upward movement process of the third support 8, the alarm 9 starts an external alarm, when the natural gas in the valve well leaks seriously, the pressure in the valve well is greater than the gravity of the second support 6, so that the second support 6 moves upwards, first switch 5 is pressed to the ascending motion in-process of second support 6, and alarm 9 starts higher rank alarming function, and the alarm range is wider, and when the natural gas in the natural gas valve well leaked, the pressure in the valve well was greater than external atmospheric pressure, promoted dog 3 rebound for slide bar 4 upward movement, slide bar 4 spills from first support 1, and the natural gas pressure of leaking in the valve well can be reflected to the scale mark on slide bar 4, makes things convenient for the rescuer to observe.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a natural gas leakage alarm device, includes first support (1), its characterized in that: the utility model discloses a safety alarm, including first support (1), the inboard fixedly connected with thrust spring (2) of first support (1), the other end fixedly connected with dog (3) of thrust spring (2), dog (3) top fixedly connected with slide bar (4), the slide bar (4) outside with first support (1) sliding connection, first support (1) inboard fixedly connected with first switch (5), first support (1) inboard sliding connection has second support (6), second support (6) inboard fixedly connected with second switch (7), second support (6) inboard sliding connection has third support (8), third support (8) top fixedly connected with alarm (9), the alarm (9) outside with second support (6) sliding connection.

2. The natural gas leakage warning device according to claim 1, wherein: the outer side of the sliding rod (4) is fixedly connected with scale marks.

3. The natural gas leakage warning device according to claim 1, wherein: a first sliding groove is formed in the inner side of the first support (1), and the outer side of the sliding rod (4) is connected with the inner side wall of the first sliding groove of the first support (1) in a sliding mode.

4. The natural gas leakage warning device according to claim 1, wherein: a first placing groove is formed in the inner side of the first support (1), and the outer side of the second support (6) is connected with the inner side wall of the first placing groove of the first support (1) in a sliding mode.

5. The natural gas leakage warning device according to claim 1, wherein: a second placing groove is formed in the inner side of the second support (6), and the outer side of the third support (8) is connected with the inner side wall of the second placing groove of the second support (6) in a sliding mode.

6. The natural gas leakage warning device according to claim 1, wherein: the second sliding groove is formed in the inner side of the second support (6), and the outer side of the alarm (9) is connected with the inner side wall of the second sliding groove of the second support (6) in a sliding mode.

7. The natural gas leakage warning device according to claim 1, wherein: the top end face of the first support (1) and the top end face of the sliding rod (4) are on the same horizontal plane, the top end face of the sliding rod (4) and the top end face of the second support (6) are on the same horizontal plane, and the top end face of the second support (6) and the top end face of the alarm (9) are on the same horizontal plane.