Calibrating device for poisonous and harmful gas alarm

Abstract

The utility model belongs to the technical field of gas detection, and particularly relates to a toxic and harmful gas alarm calibrating device which comprises a calibrating assembly. Comprising a base, supporting foot stools arranged at the four corners of the bottom of the base, a gas storage box arranged at the top of the base, a connecting pipe arranged at the bottom of one side of the gas storage box, a connecting port formed in one end of the connecting pipe and a controller arranged on one side of the gas storage box. An air inlet assembly, comprising a gas inlet pipe arranged at the top of a gas storage box, a toxic gas inlet pipe arranged at one end of the gas inlet pipe, a zero gas inlet pipe arranged at one end of the gas inlet pipe, electromagnetic valves arranged on the toxic gas inlet pipe and the zero gas inlet pipe, and a rotating shaft arranged in an inner cavity of the gas inlet pipe and extending into the gas storage box, the impeller is arranged on the surface of the rotating shaft; the stirring blades are arranged on the surface of the rotating shaft; the device is reasonable in structure, the concentration of introduced poison gas can be conveniently adjusted in the using process, and the detection efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a toxic and harmful gas alarm detection device. Background Art

[0002] Toxic and harmful gases refer to gases that are toxic in themselves and can cause harm to the human body. Generally, toxic and harmful gas alarms are installed in areas where toxic and harmful gases are produced. Toxic and harmful gas alarms can promptly issue alarms when toxic and harmful gases appear in the area, reminding people to avoid them.

[0003] During the production process of toxic and harmful gas alarms, the finished toxic and harmful gas alarms need to be calibrated. Generally, a single toxic and harmful gas alarm is injected with a variety of toxic and harmful gases and zero-point gases of different concentration levels. The existing calibration device has some shortcomings during use, such as it is inconvenient to adjust the concentration of toxic gases and the detection efficiency is low. For this reason, we propose a new type of toxic and harmful gas alarm calibration device. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the problems existing in the existing technology, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a toxic and harmful gas alarm calibration device, which can facilitate the adjustment of the concentration of the introduced toxic gas during use, thereby helping to improve the detection efficiency.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A toxic and harmful gas alarm testing device, comprising:

[0009] The calibration assembly includes a base, support legs arranged at the four corners of the bottom of the base, a gas storage box arranged at the top of the base, a connecting pipe arranged at the bottom of one side of the gas storage box, a connecting port arranged at one end of the connecting pipe, and a controller arranged on one side of the gas storage box;

[0010] The air intake assembly includes an air intake pipe arranged on the top of the gas storage box, a toxic gas inlet pipe arranged at one end of the air intake pipe, a zero-point gas inlet pipe arranged at one end of the air intake pipe, an electromagnetic valve arranged on the toxic gas inlet pipe and the zero-point gas inlet pipe, a rotating shaft arranged in the inner cavity of the air intake pipe and extending to the interior of the gas storage box, an impeller arranged on the surface of the rotating shaft, and a stirring blade arranged on the surface of the rotating shaft.

[0011] As a preferred solution of the toxic and harmful gas alarm calibration device described in the utility model, wherein: a fixing seat is provided at the bottom of the supporting leg, and a suction cup is provided at the bottom of the fixing seat.

[0012] As a preferred solution of the toxic and harmful gas alarm detection device described in the utility model, the connection port is connected to the detection port of the alarm.

[0013] As a preferred solution of the toxic and harmful gas alarm verification device described in the utility model, a one-way valve is provided on the connecting pipe.

[0014] As a preferred solution of the toxic and harmful gas alarm verification device described in the utility model, the air inlet pipe, the toxic gas inlet pipe and the zero-point gas inlet pipe are connected by a three-way joint.

[0015] As a preferred solution of the toxic and harmful gas alarm verification device described in the utility model, a shaft sleeve that matches the rotating shaft is provided on the top of the air inlet pipe.

[0016] As a preferred solution of the toxic and harmful gas alarm calibration device described in the utility model, the impeller is located inside the air inlet pipe, and the stirring blade is located inside the gas storage box.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The solenoid valve is used to adjust the air flow rate of the toxic gas inlet pipe and the zero point gas inlet pipe, thereby achieving the adjustment of toxic gases of different concentrations, which can increase the detection range and help improve the detection efficiency;

[0019] 2. In addition, when the gas enters the gas storage box through the air inlet pipe, it drives the impeller to rotate, the impeller drives the rotating shaft to rotate, and the rotating shaft drives the stirring blades to rotate. The stirring blades stir and mix the gas in the gas storage box, which helps to improve the accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the air intake assembly of the utility model;

[0023] Figure 3 This is a schematic diagram of the rotating shaft structure of the utility model.

[0024] In the figure, 100 verification component, 110 base, 120 support bracket, 130 gas storage box, 140 connecting pipe, 150 connecting port, 160 controller, 200 air intake component, 210 air intake pipe, 220 toxic gas inlet pipe, 230 zero point gas inlet pipe, 240 solenoid valve, 250 rotating shaft, 260 impeller, 270 stirring blade. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0029] The utility model provides the following technical solutions: a toxic and harmful gas alarm detection device, which can conveniently adjust the concentration of the introduced toxic gas during use, thereby helping to improve detection efficiency;

[0030] Figures 1 to 3 The figure shows a schematic structural diagram of an embodiment of a toxic and harmful gas alarm test device of the present invention, the main body of which includes a test component 100 and an air intake component 200;

[0031] The verification component 100 includes a base 110, supporting legs 120 installed at the four corners of the bottom of the base 110, a gas storage box 130 installed on the top of the base 110, a connecting pipe 140 installed at the bottom of one side of the gas storage box 130, a connecting port 150 installed at one end of the connecting pipe 140, and a controller 160 installed on one side of the gas storage box 130. A fixing seat is installed at the bottom of the supporting legs 120, and a suction cup is installed at the bottom of the fixing seat. The connecting port 150 is connected to the detection port of the alarm. A one-way valve is installed on the connecting pipe 140. Furthermore, the base 110 and the supporting legs 120 are used to carry the gas storage box 130, the gas storage box 130 is used to store toxic gas, the connecting pipe 140 is used to carry the connecting port 150, the connecting port 150 is used to connect to the alarm to be tested, and the controller 160 is used for human-machine operation;

[0032] The air intake assembly 200 includes an air intake pipe 210 installed on the top of the gas storage box 130, a toxic gas inlet pipe 220 installed at one end of the air intake pipe 210, a zero-point gas inlet pipe 230 installed at one end of the air intake pipe 210, an electromagnetic valve 240 installed on the toxic gas inlet pipe 220 and the zero-point gas inlet pipe 230, a rotating shaft 250 installed in the inner cavity of the air intake pipe 210 and extending to the interior of the gas storage box 130, an impeller 260 installed on the surface of the rotating shaft 250, and a stirring blade 270 installed on the surface of the rotating shaft 250. The air intake pipe 210, the toxic gas inlet pipe 220 and the zero-point gas inlet pipe 230 are connected by a three-way joint. A shaft sleeve that matches the rotating shaft 250 is installed on the top of 10, the impeller 260 is located inside the air inlet pipe 210, and the stirring blade 270 is located inside the gas storage box 130. Furthermore, the air inlet pipe 210 is used for gas entry, the toxic gas inlet pipe 220 is used for toxic gas entry, the zero-point gas inlet pipe 230 is used for zero-point gas entry, and the solenoid valve 240 is used to control and adjust the gas flow rate to achieve different concentration adjustments. The rotating shaft 250 is used to carry the impeller 260 and the stirring blade 270, the impeller 260 is used to drive the rotating shaft 250 to rotate, and the rotating shaft 250 is used to drive the stirring blade 270 to rotate to achieve gas stirring and mixing, which helps to improve the accuracy of the measurement.

[0033] Combine Figure 1-Figure 3The specific principle of the toxic and harmful gas alarm calibration device of this embodiment is as follows: the air intake flow rate of the toxic gas inlet pipe 220 and the zero point gas inlet pipe 230 is adjusted by the solenoid valve 240, thereby realizing the adjustment of toxic gases of different concentrations, which can improve the detection range and help improve the detection efficiency; in addition, when the gas enters the gas storage box 130 through the air inlet pipe 210, it drives the impeller 260 to rotate, the impeller 260 drives the rotating shaft 250 to rotate, and the rotating shaft 250 drives the stirring blade 270 to rotate, and the stirring blade 270 stirs and mixes the gas in the gas storage box 130, which helps to improve the accuracy of the measurement.

[0034] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A toxic and harmful gas alarm test device, characterized in that: include: A calibration assembly (100) comprises a base (110), support legs (120) arranged at four corners of the bottom of the base (110), a gas storage box (130) arranged on the top of the base (110), a connecting pipe (140) arranged at the bottom of one side of the gas storage box (130), a connecting port (150) arranged at one end of the connecting pipe (140), and a controller (160) arranged on one side of the gas storage box (130); An air intake assembly (200) comprises an air intake pipe (210) arranged at the top of a gas storage box (130), a toxic gas inlet pipe (220) arranged at one end of the air intake pipe (210), a zero-point gas inlet pipe (230) arranged at one end of the air intake pipe (210), an electromagnetic valve (240) arranged on the toxic gas inlet pipe (220) and the zero-point gas inlet pipe (230), a rotating shaft (250) arranged in the inner cavity of the air intake pipe (210) and extending to the interior of the gas storage box (130), an impeller (260) arranged on the surface of the rotating shaft (250), and a stirring blade (270) arranged on the surface of the rotating shaft (250).

2. The toxic and harmful gas alarm verification device according to claim 1, characterized in that: The bottom of the supporting leg (120) is provided with a fixing seat, and the bottom of the fixing seat is provided with a suction cup.

3. The toxic and harmful gas alarm verification device according to claim 1, characterized in that: The connection port (150) is connected to the detection port of the alarm.

4. The toxic and harmful gas alarm verification device according to claim 1, characterized in that: A one-way valve is provided on the connecting pipe (140).

5. The toxic and harmful gas alarm testing device according to claim 1, characterized in that: The air inlet pipe (210), the toxic gas inlet pipe (220) and the zero-point gas inlet pipe (230) are connected via a three-way joint.

6. The toxic and harmful gas alarm testing device according to claim 1, characterized in that: The top of the air inlet pipe (210) is provided with a shaft sleeve that matches the rotating shaft (250).

7. The toxic and harmful gas alarm verification device according to claim 1, characterized in that: The impeller (260) is located inside the air inlet pipe (210), and the stirring blade (270) is located inside the gas storage box (130).

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