Novel gas leakage alarm

Abstract

The utility model discloses a novel gas leakage alarm which comprises a shell, a plurality of gas outlet holes are formed in the upper portion of the outer side of the shell, a gas inlet is formed in the bottom face of the shell, a vertical rod is fixedly installed in an inner cavity of the shell, and an annular installation plate used for blocking the gas outlet holes is installed on the outer side of the vertical rod in a sliding mode. An adjusting assembly used for driving the annular mounting plate to move is arranged in an inner cavity of the shell, an air inlet assembly is mounted on the inner side of the annular mounting plate, an alarm loudspeaker is fixedly mounted at the bottom of the inner cavity of the shell, and a plurality of lifting rods penetrating through air inlets are mounted on the bottom face of the annular mounting plate. A bottom plate is fixedly mounted at the lower ends of the lifting rods, and a gas monitoring sensor is mounted on the top surface of the bottom plate. The adjusting assembly comprises a motor, the motor is fixedly installed in an inner cavity of the shell, a threaded rod is fixedly installed at the output end of the motor and penetrates through the annular installation plate in a threaded mode, a switch of the motor is turned on, the threaded rod is driven to rotate, and therefore the annular installation plate is driven to move up and down.

Description

Technical Field

[0001] The utility model relates to the technical field of gas leakage, in particular to a novel gas leakage alarm. Background Art

[0002] Gas leak alarms play a vital role in industrial production, home safety, commercial environment and other fields. There are many types of gas leak alarms on the market. They mainly sense changes in gas concentration through sensors. When the gas concentration exceeds the set value, an alarm signal will be issued.

[0003] However, after detecting the leakage of corrosive gas, the traditional gas leak alarm can sound an alarm, but it is often unable to prevent the leaked gas from further spreading into the alarm in time. The internal components and circuits of the alarm are prone to corrosion after long-term use, which affects the service life and accuracy of the alarm. Therefore, we propose a new type of gas leak alarm. Utility Model Content

[0004] The purpose of the utility model is to provide a novel gas leakage alarm to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel gas leakage alarm, comprising a shell, a plurality of air outlets are provided on the upper outer portion of the shell, an air inlet is provided on the bottom surface of the shell, a vertical rod is fixedly installed in the inner cavity of the shell, an annular mounting plate for blocking the air outlet is slidably installed on the outer side of the vertical rod, an adjusting component for driving the annular mounting plate to move is provided in the inner cavity of the shell, and an air inlet component is installed on the inner side of the annular mounting plate;

[0006] An alarm speaker is fixedly installed at the bottom of the inner cavity of the shell, a plurality of lifting rods passing through the air inlet are installed on the bottom surface of the annular mounting plate, a bottom plate is fixedly installed at the lower ends of the plurality of lifting rods, and a gas monitoring sensor is installed on the top surface of the bottom plate.

[0007] Preferably, the adjustment assembly comprises a motor, the motor is fixedly mounted in the inner cavity of the shell, a threaded rod is fixedly mounted on the output end of the motor, and the thread of the threaded rod passes through the annular mounting plate.

[0008] Preferably, the air inlet assembly includes a plurality of connecting rods, and the plurality of connecting rods are fixedly mounted on the inner side of the annular mounting plate, and a heat dissipation fan is fixedly mounted on one end of the connecting rod.

[0009] Preferably, a single chip microcomputer is installed in the inner cavity of the shell, and the single chip microcomputer is electrically connected to the alarm speaker, the motor, and the gas monitoring sensor respectively.

[0010] Preferably, the outer wall of the annular mounting plate abuts against the inner wall of the shell, and the thickness of the annular mounting plate is greater than the thickness of the air outlet.

[0011] Preferably, a sealing ring is bonded to the bottom surface of the shell, and the sealing ring is made of rubber material.

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

[0013] 1. When the new gas leak alarm is performing detection work, the cooling fan is turned on, and air enters the inner cavity of the shell from the air inlet and is discharged from the air outlet. It actively absorbs air, and the air passes through the position between the shell and the bottom plate before entering the air inlet, so that the gas monitoring sensor can detect the gas in the air. Its active air absorption method can efficiently detect the air and can detect gas leaks more quickly.

[0014] 2. This new type of gas leak alarm, after the gas monitoring sensor detects that the target gas content has reached the set value, the single-chip microcomputer controls the alarm speaker to sound an alarm. At the same time, the single-chip microcomputer controls the switch to turn on the motor to drive the threaded rod to rotate, and the threaded rod drives the annular mounting plate to rise. The rising annular mounting plate blocks the air outlet, and the annular mounting plate drives the bottom plate to rise through the lifting rod, and the bottom plate seals the air inlet, so that the shell is sealed to prevent the components inside the shell from contacting the leaked gas. When detecting leaks of corrosive gases, it effectively protects the components inside the shell and improves the service life of the alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the annular mounting plate of the utility model.

[0018] In the figure: 1. Shell; 2. Air outlet; 3. Air inlet; 4. Vertical rod; 5. Alarm speaker; 6. Motor; 7. Threaded rod; 8. Ring mounting plate; 9. Connecting rod; 10. Cooling fan; 11. Lifting rod; 12. Bottom plate; 13. Gas monitoring sensor; 14. Sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] Please refer to Figure 1-3 As shown, the utility model provides a new type of gas leakage alarm, including a shell 1, a plurality of air outlet holes 2 are opened on the upper outer side of the shell 1, an air inlet 3 is opened on the bottom surface of the shell 1, a vertical rod 4 is fixedly installed in the inner cavity of the shell 1, an annular mounting plate 8 for blocking the air outlet holes 2 is slidably installed on the outer side of the vertical rod 4, an adjusting component for driving the annular mounting plate 8 to move is provided in the inner cavity of the shell 1, and an air inlet component is installed on the inner side of the annular mounting plate 8;

[0022] An alarm speaker 5 is fixedly installed at the bottom of the inner cavity of the shell 1, a plurality of lifting rods 11 passing through the air inlet 3 are installed on the bottom surface of the annular mounting plate 8, a bottom plate 12 is fixedly installed at the lower end of the plurality of lifting rods 11, and a gas monitoring sensor 13 is installed on the top surface of the bottom plate 12.

[0023] Specifically, external air is sucked in through the air inlet assembly, and gas leakage detection is performed through the gas monitoring sensor 13. After the corrosive gas leakage is detected, the adjustment assembly drives the annular mounting plate 8 to rise to block the air outlet 2, and drives the gas monitoring sensor 13 to block the air inlet 3, thereby protecting the components inside the shell 1.

[0024] Wherein: the adjustment component includes a motor 6, which is fixedly installed in the inner cavity of the shell 1, and a threaded rod 7 is fixedly installed at the output end of the motor 6. The threaded rod 7 threads through the annular mounting plate 8. When the switch of the motor 6 is turned on, the threaded rod 7 is driven to rotate, thereby driving the annular mounting plate 8 to move up and down.

[0025] Among them: the air inlet assembly includes multiple connecting rods 9, and the multiple connecting rods 9 are fixedly installed on the inner side of the annular mounting plate 8. A cooling fan 10 is fixedly installed at one end of the connecting rod 9. When the switch of the cooling fan 10 is turned on, the cooling fan 10 draws external air into the shell 1 from the air inlet 3 and discharges it from the air outlet 2.

[0026] Wherein: a single chip microcomputer is installed in the inner cavity of the housing 1, and the single chip microcomputer is electrically connected to the alarm speaker 5, the motor 6, and the gas monitoring sensor 13 respectively.

[0027] The outer wall of the annular mounting plate 8 contacts the inner wall of the housing 1 , and the thickness of the annular mounting plate 8 is greater than the thickness of the air outlet 2 , so that the annular mounting plate 8 can block the air outlet 2 after rising.

[0028] Wherein: a sealing ring 14 is bonded to the bottom surface of the housing 1 , and the sealing ring 14 is made of rubber material. When the bottom plate 12 rises to contact with the sealing ring 14 , the air inlet 3 can be sealed.

[0029] Working principle: The utility model is a new type of gas leakage alarm. When performing detection work, the cooling fan 10 is turned on, and air enters the inner cavity of the shell 1 from the air inlet 3 and is discharged from the air outlet 2. It actively absorbs air. Before entering the air inlet 3, the air passes through the position between the shell 1 and the bottom plate 12, so that the gas monitoring sensor 13 can detect the gas in the air;

[0030] The detection data is sent to the single chip microcomputer set in the inner cavity of the shell 1 through the gas monitoring sensor 13. After detecting that the target gas content reaches the set value, the single chip microcomputer controls the alarm speaker 5 to sound an alarm. At the same time, the single chip microcomputer controls the switch of the motor 6 to drive the threaded rod 7 to rotate, and the threaded rod 7 drives the annular mounting plate 8 to rise. The annular mounting plate 8 rises to block the air outlet 2. The annular mounting plate 8 drives the bottom plate 12 to rise through the lifting rod 11, and the bottom plate 12 seals the air inlet 3, so that the shell 1 is sealed to prevent the components in the shell 1 from contacting with the leaked gas. When leak detection of corrosive gas is performed, the components in the shell 1 are effectively protected.

[0031] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel gas leakage alarm, comprising a housing (1), characterized in that: A plurality of air outlet holes (2) are provided on the upper outer portion of the shell (1), an air inlet (3) is provided on the bottom surface of the shell (1), a vertical rod (4) is fixedly installed in the inner cavity of the shell (1), an annular mounting plate (8) for blocking the air outlet holes (2) is slidably installed on the outer side of the vertical rod (4), an adjusting component for driving the annular mounting plate (8) to move is provided in the inner cavity of the shell (1), and an air inlet component is installed on the inner side of the annular mounting plate (8); An alarm speaker (5) is fixedly mounted at the bottom of the inner cavity of the shell (1), a plurality of lifting rods (11) passing through the air inlet (3) are mounted on the bottom surface of the annular mounting plate (8), a bottom plate (12) is fixedly mounted at the lower ends of the plurality of lifting rods (11), and a gas monitoring sensor (13) is mounted on the top surface of the bottom plate (12).

2. A novel gas leak alarm according to claim 1, characterized in that: The adjustment assembly comprises a motor (6), the motor (6) is fixedly mounted in the inner cavity of the housing (1), a threaded rod (7) is fixedly mounted on the output end of the motor (6), and the threaded rod (7) is threadedly penetrated through the annular mounting plate (8).

3. A novel gas leak alarm according to claim 1, characterized in that: The air inlet assembly comprises a plurality of connecting rods (9), wherein the plurality of connecting rods (9) are fixedly mounted on the inner side of the annular mounting plate (8), and a heat dissipation fan (10) is fixedly mounted on one end of the connecting rod (9).

4. A novel gas leak alarm according to claim 1, characterized in that: A single-chip microcomputer is installed in the inner cavity of the housing (1), and the single-chip microcomputer is electrically connected to the alarm speaker (5), the motor (6), and the gas monitoring sensor (13) respectively.

5. A novel gas leak alarm according to claim 1, characterized in that: The outer wall of the annular mounting plate (8) abuts against the inner wall of the housing (1), and the thickness of the annular mounting plate (8) is greater than the thickness of the air outlet hole (2).

6. A novel gas leak alarm according to claim 1, characterized in that: A sealing ring (14) is bonded to the bottom surface of the housing (1), and the sealing ring (14) is made of rubber material.

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