Gas safety leakage detection alarm device

Abstract

The utility model discloses a gas safety leakage detection alarm device, and relates to the technical field of gas equipment. Comprising a detection cavity, a sealing adjusting plate is arranged in the detection cavity, a positioning pushing part is arranged between the sealing adjusting plate and the detection cavity, an input pipe is fixedly connected to the bottom end of the outer surface of the detection cavity, and a discharge pipe is fixedly connected to the arc-shaped outer surface of the detection cavity. According to the utility model, the reserved opening degree between the output pipe and the detection cavity can be adjusted when the equipment is used through the cooperation between the positioning pushing piece and the sealing plate, the pressure intensity in the pipe is reduced when leakage occurs, and the equipment is closed in time when the pressure intensity changes by adopting the pushing springs with different elastic force coefficients, so that the working efficiency is improved. And the gas pipeline can be closed in time during small-flow leakage, so that dangerous conditions are reduced, and the practicability and applicability of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment technology, specifically a gas safety leak detection and alarm device. Background Technology

[0002] A gas safety leak detection alarm device is a device used to monitor gas leaks and issue timely alarms.

[0003] A gas leak detection alarm device with authorization announcement number "CN210402656U" can effectively discharge leaked gas by using an exhaust window, exhaust fan, support rod, positioning ring, positioning rod and gas detection sensor in combination. This makes the alarm device safer to use and solves the problem that when the alarm device cannot discharge the leaked gas into the external environment, the gas concentration in the plant is too high, which leads to the alarm device being unsafe to use. This greatly improves the safety of the alarm device.

[0004] This device can improve the safety of alarm devices, but it uses fixed-point detection. When encountering a small pipeline leak, and due to the influence of air flow, the exhaust tube may not be able to effectively draw the leak into the detection device and detect the leak. As a result, the device cannot achieve good detection results when there is a small flow of leak. Utility Model Content

[0005] The purpose of this invention is to provide a gas safety leak detection and alarm device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas safety leak detection and alarm device, including a detection chamber, a sealing adjustment plate is provided inside the detection chamber, a positioning pusher is provided between the sealing adjustment plate and the detection chamber, an input pipe is fixedly connected to the bottom of the outer surface of the detection chamber, an exhaust pipe is fixedly connected to the arc-shaped outer surface of the detection chamber, and the interiors of both the exhaust pipe and the input pipe are connected to the interior of the detection chamber. An alarm element is provided at the top of the outer surface of the detection chamber.

[0007] Preferably, the positioning pusher includes multiple positioning slide rods, the top and bottom of each positioning slide rod are fixedly connected to the top and bottom of both sides inside the detection cavity, the top of the sealing adjustment plate is provided with a sliding hole penetrating the bottom, the surface of each sliding hole is slidably connected to the surface of the corresponding positioning slide rod, and multiple push springs are provided between the top of the sealing adjustment plate and the top of the inner wall of the detection cavity, each push spring is sleeved on the surface of the slide rod.

[0008] Preferably, the alarm device includes a tension sensor, which is disposed at the top of the outer surface of the detection cavity. A connecting groove is opened at the top of the detection cavity, penetrating the interior of the detection cavity. A traction rope is provided at the input end of the tension sensor. The other end of the traction rope is fixedly connected to the top of the sealing adjustment plate after passing through the connecting groove. A first mounting bracket is installed on the outer surface of the tension sensor, and the bottom end of the first mounting bracket is fixedly connected to the top of the outer surface of the detection cavity.

[0009] Preferably, a sound-emitting unit and multiple alarm lights are installed at the top of the detection cavity. The sound-emitting unit, the detection lights, and the tension sensor are directly electrically connected. A second mounting bracket is installed on the outer surface of the sound-emitting unit, and the bottom end of the second mounting bracket is fixedly connected to the top of the detection cavity.

[0010] Preferably, a sealing plate is fixedly connected to the top of the sealing adjustment plate, and the sealing plate and the slot of the output pipe communicating with the detection cavity are adapted to each other. The sealing plate is used to seal the output pipe and the detection cavity when the sealing adjustment plate is moved down for adjustment.

[0011] Preferably, the input pipe has a second connecting thread at one end of its outer surface, and the output pipe has a first connecting thread at one end of its outer surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This gas safety leak detection and alarm device, through the cooperation between the positioning pusher and the sealing plate, allows for adjustment of the reserved opening degree between the output pipe and the detection chamber during use. When a leak occurs, the pressure inside the pipe decreases, and by using push springs with different elastic coefficients, the device can be closed in a timely manner when the pressure changes. In the event of a small-flow leak, the gas pipeline can be closed in a timely manner, reducing the occurrence of dangerous situations and increasing the practicality and applicability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall bottom axial structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall top axial structure of this utility model;

[0016] Figure 3 This is a schematic diagram of a cross-sectional view of one side of the present invention;

[0017] Figure 4 This is a schematic diagram of a cross-sectional view of one side of the present invention.

[0018] In the diagram: 1. Detection chamber; 2. Input pipe; 3. Discharge pipe; 4. Positioning slide bar; 5. Sealing adjustment plate; 6. Push spring; 7. Traction rope; 8. Tension sensor; 9. First mounting bracket; 10. Alarm light; 11. Sound unit; 12. Second mounting bracket; 13. First connecting thread; 14. Second connecting thread; 15. Sealing plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] A gas leak detection alarm device is a device used to monitor gas leaks and issue timely alarms. The authorized notification number is "CN210402656U". This device, using an exhaust window, exhaust fan, support rod, positioning ring, positioning rod, and gas detection sensor, effectively discharges leaked gas, making the alarm device safer. It solves the problem of alarm devices failing to discharge leaked gas into the external environment, leading to excessively high gas concentrations within the plant and causing unsafe operation. While this device improves safety, it uses fixed-point detection. In cases of very small pipeline leaks, and due to airflow limitations, the exhaust fan may not be able to effectively draw the leak into the detection device and detect the leak, resulting in poor detection performance for small-flow leaks.

[0021] like Figures 1-4As shown, this utility model provides a technical solution: a gas safety leak detection and alarm device, including a detection chamber 1, a sealing adjustment plate 5 inside the detection chamber 1, a positioning pusher between the sealing adjustment plate 5 and the detection chamber 1, an input pipe 2 fixedly connected to the bottom of the outer surface of the detection chamber 1, and an exhaust pipe 3 fixedly connected to the arc-shaped outer surface of the detection chamber 1. Both the exhaust pipe 3 and the input pipe 2 are internally connected to the interior of the detection chamber 1. An alarm element is provided at the top of the outer surface of the detection chamber 1. The positioning pusher includes multiple positioning slide rods 4, each positioning slide rod 4 having a fixed top and bottom end. Connected to the top and bottom of both sides inside the detection chamber 1, the top of the sealing adjustment plate 5 has a sliding hole that passes through the bottom. The surface of each sliding hole is slidably connected to the surface of the corresponding positioning slide rod 4. Multiple push springs 6 are provided between the top of the sealing adjustment plate 5 and the top of the inner wall of the detection chamber 1. Each push spring 6 is sleeved on the surface of the slide rod. A sealing plate 15 is fixedly connected to the top of the sealing adjustment plate 5. The sealing plate 15 is compatible with the slot of the output pipe that connects to the detection chamber 1. The sealing plate 15 is used to seal the output pipe and the detection chamber 1 when the sealing adjustment plate 5 is moved down for adjustment.

[0022] It is important to note that this structure enables the device to automatically close the pipeline in the event of a gas leak, resulting in safer operation. Multiple units are installed within the pipeline. When a gas leak occurs, the internal pressure of the gas pipe decreases, preventing the flowing gas from pushing the sealing adjustment plate 5 upwards. A push spring 6 assists in lowering the sealing adjustment plate 5 to seal the connection between the output pipe and the detection chamber 1, achieving automatic closure and increasing the device's practicality and convenience.

[0023] like Figures 1-3 As shown, the alarm device includes a tension sensor 8, which is located at the top of the outer surface of the detection chamber 1. A through groove is formed at the top of the detection chamber 1, penetrating the interior of the detection chamber 1. A traction rope 7 is provided at the input end of the tension sensor 8, and the other end of the traction rope 7 is fixedly connected to the top of the sealing adjustment plate 5 after passing through the through groove. A first mounting bracket 9 is installed on the outer surface of the tension sensor 8, and the bottom end of the first mounting bracket 9 is fixedly connected to the top of the outer surface of the detection chamber 1. A sound-emitting unit 11 and multiple alarm lights 10 are installed at the top of the detection chamber 1. The sound-emitting unit 11, the detection lights, and the tension sensor 8 are directly electrically connected. A second mounting bracket 12 is installed on the outer surface of the sound-emitting unit 11, and the bottom end of the second mounting bracket 12 is fixedly connected to the top of the detection chamber 1. A second connecting thread 14 is provided at one end of the outer surface of the input pipe 2, and a first connecting thread 13 is provided at one end of the outer surface of the output pipe.

[0024] It is worth noting that this structure enables the device to promptly alert the user when a leak is detected. The visual alarm is provided by flashing warning lights, and the audible alarm is provided by the sound unit 11. During use, the downward movement of the sealing adjustment plate 5 causes the traction rope 7 to pull the tension sensor 8. The detection by the tension sensor 8, along with the alarm lights 10 and the sound unit 11, achieves the alarm effect, further increasing the practicality and convenience of the device during use.

[0025] Working principle: When gas leaks during use, the pressure inside the pipe decreases, the sealing adjustment plate 5 moves downward, and the spring 6 assists the sealing adjustment plate 5 in moving downward. The positioning slide rod 4 ensures the stability of the downward movement of the sealing adjustment plate 5. During the downward movement of the sealing adjustment plate 5, the traction rope 7 pulls the tension sensor 8. After the tension detector detects and judges, the alarm is triggered by the alarm light 10 and the sound unit 11.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A gas safety leak detection and alarm device, comprising a detection chamber (1), characterized in that: A sealing adjustment plate (5) is provided inside the detection chamber (1). A positioning pusher is provided between the sealing adjustment plate (5) and the detection chamber (1). An input pipe (2) is fixedly connected to the bottom of the outer surface of the detection chamber (1). An discharge pipe (3) is fixedly connected to the arc-shaped outer surface of the detection chamber (1). The discharge pipe (3) and the input pipe (2) are both connected to the inside of the detection chamber (1). An alarm is provided at the top of the outer surface of the detection chamber (1).

2. The gas safety leak detection and alarm device according to claim 1, characterized in that: The positioning pusher includes multiple positioning slide rods (4). The top and bottom ends of each positioning slide rod (4) are fixedly connected to the top and bottom ends of both sides inside the detection cavity (1). The top end of the sealing adjustment plate (5) is provided with a sliding hole that passes through the bottom end. The surface of each sliding hole is slidably connected to the surface of the corresponding positioning slide rod (4). Multiple push springs (6) are provided between the top end of the sealing adjustment plate (5) and the top end of the inner wall of the detection cavity (1). Each push spring (6) is sleeved on the surface of the slide rod.

3. The gas safety leak detection and alarm device according to claim 1, characterized in that: The alarm device includes a tension sensor (8), which is located at the top of the outer surface of the detection cavity (1). A connecting groove is opened at the top of the detection cavity (1) to penetrate the interior of the detection cavity (1). A traction rope (7) is provided at the input end of the tension sensor (8). The other end of the traction rope is fixedly connected to the top of the sealing adjustment plate (5) after passing through the connecting groove. A first mounting bracket (9) is installed on the outer surface of the tension sensor (8). The bottom end of the first mounting bracket (9) is fixedly connected to the top of the outer surface of the detection cavity (1).

4. A gas safety leak detection and alarm device according to claim 3, characterized in that: The detection cavity (1) is equipped with a sound-emitting unit (11) and multiple alarm lights (10) at the top. The sound-emitting unit (11), the detection lights, and the tension sensor (8) are directly electrically connected. A second mounting bracket (12) is installed on the outer surface of the sound-emitting unit (11), and the bottom end of the second mounting bracket (12) is fixedly connected to the top of the detection cavity (1).

5. A gas safety leak detection and alarm device according to claim 2, characterized in that: The top of the sealing adjustment plate (5) is fixedly connected to a sealing plate (15). The sealing plate (15) and the slot of the output pipe connecting the detection chamber (1) are compatible. The sealing plate (15) is used to seal the output pipe and the detection chamber (1) when the sealing adjustment plate (5) moves down for adjustment.

6. A gas safety leak detection and alarm device according to claim 1, characterized in that: The input pipe (2) has a second connecting thread (14) on one end of its outer surface, and the output pipe has a first connecting thread (13) on one end of its outer surface.

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