Gas detection device

Abstract

The utility model relates to the technical field of gas detection devices, in particular to a gas detection device which comprises a shell, a bottom shell and a detection assembly, an installation pipe is fixedly installed on the top of the shell, the shell is of a hollow cone structure, the bottom of the shell is a cambered surface, and the bottom of the shell is provided with a gas inlet. A plurality of groups of infrared receivers are mounted at the bottom of the shell at equal intervals; a detection assembly is fixedly mounted at the top of the shell; and a bottom shell is fixedly mounted at the bottom of the shell. The detection assembly is installed at the top of the installation pipe, the detection assembly is matched with the infrared receivers installed in the mode of being attached to the cambered surface of the bottom of the shell, gas in the shell is detected in multiple directions, the detection assembly rotates in a reciprocating mode, the emission angle of the infrared emitters is continuously adjusted, and the detection efficiency is improved. Therefore, the gas at the corresponding positions of the plurality of groups of infrared receivers can be effectively detected, and the detection precision of the gas detection device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection devices, and specifically relates to a gas detection device. Background Technique

[0002] An infrared gas detector is an instrument that measures gas concentration based on the principle of infrared absorption. The working principle of an infrared gas detector is based on infrared spectroscopy, that is, different gas molecules have absorption characteristics for infrared light of specific wavelengths. When infrared light passes through a sample containing the target gas, the light of a specific wavelength will be absorbed by the gas molecules, resulting in a decrease in the intensity of the light of that wavelength. By measuring the intensity difference between the incident light and the transmitted light, the concentration of the gas can be determined.

[0003] The following defects still exist in the prior art during use:

[0004] When the gas detection device in the prior art detects the collected gas, due to the traditional gas detection device, its infrared emitter and infrared receiver are of a fixed structure, and the infrared light can only detect the concentration of the gas on the propagation path. Therefore, the gas that is not irradiated by the infrared light in the gas detection device cannot be effectively detected, and thus the detection data of the gas detection device has errors;

[0005] When the gas detection device in the prior art detects gas, since some gases will be mixed with other gases during the collection process, and there will be two or more components in the gas to be detected, due to the influence of the density difference between the gases, the gas will be stratified during the detection process. As a result, when the infrared light penetrates the mixed gas for detection, it is easy to only detect one component of the gas, resulting in the detection data not being referenceable.

[0006] In view of this, we propose a gas detection device to solve the existing problems. Content of the Utility Model

[0007] The purpose of the utility model is to provide a gas detection device to solve the problems mentioned in the above background technique.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A gas detection device, including a housing, a bottom case and a detection component. An installation pipe is fixedly installed at the top of the housing. The housing is of a hollow conical structure, and the bottom of the housing is an arc surface. A number of groups of infrared receivers are equidistantly installed at the bottom of the housing;

[0009] The detection component is fixedly installed at the top of the housing;

[0010] The bottom case is fixedly installed at the bottom of the housing.

[0011] Preferably, the detection component includes a mounting disc. An installation hole is formed inside the mounting disc, and a rubber cover is fixedly installed inside the installation hole. An infrared emitter is fixedly installed at the central position inside the rubber cover, and the top end of the infrared emitter extends out of the rubber cover;

[0012] Four mounting rods are fixedly installed at equal intervals on the top of the mounting disc. One side of the mounting rod is installed with an adjusting cylinder through a pin shaft, and one end of the adjusting cylinder away from the mounting rod is installed with an adjusting ring through a pin shaft. The adjusting ring is sleeved on the side of the infrared emitter.

[0013] Preferably, one side of the housing is fixedly installed with an air duct, and a solenoid valve is fixedly installed at the connection position between the air duct and the housing.

[0014] Preferably, a display screen is fixedly installed on the front of the housing, and the display screen is electrically connected to a plurality of groups of infrared receivers and infrared emitters through wires.

[0015] Preferably, one side of the bottom shell is fixedly installed with a connecting wire, and the connecting wire is electrically connected to a plurality of groups of infrared receivers.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By installing a detection component on the top of the installation pipe, the present utility model cooperates with a plurality of groups of infrared receivers installed along the arc surface at the bottom of the housing to detect the gas inside the housing in all directions. The detection component rotates reciprocally and continuously adjusts the emission angle of the infrared emitter, so that the gas at the corresponding positions of a plurality of groups of infrared receivers can be effectively detected, thereby improving the detection accuracy of the gas detection device.

[0018] By fixedly installing a bottom shell at the bottom of the housing, and the bottom of the bottom shell has the same arc surface design as the bottom of the housing. When the gas detection device is detecting, the whole device can be rotated and shaken through the arc surface at the bottom of the bottom shell, so that the gas to be detected collected inside the housing is fully mixed, avoiding the stratification of various components inside the mixed gas during the detection process, and facilitating the accurate detection of the concentration of the mixed gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0020] Figure 2 is a three-dimensional sectional structure schematic diagram of the present utility model;

[0021] Figure 3 is a front sectional structure schematic diagram of the present utility model;

[0022] Figure 4 It is a partial three-dimensional structure schematic diagram of the present utility model;

[0023] Figure 5 It is a partial top view structure schematic diagram of the present utility model.

[0024] In the figure: 1. Housing; 101. Infrared receiver; 102. Air duct; 103. Installation pipe; 104. Display screen; 2. Bottom shell; 201. Connecting wire; 3. Detection component; 301. Installation disc; 302. Installation rod; 303. Infrared emitter; 304. Adjusting cylinder; 305. Adjusting ring; 306. Rubber cover. Specific implementation manners

[0025] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] As Figure 1 - Figure 5 shown, a gas detection device proposed by the present utility model includes a housing 1, a bottom shell 2 and a detection component 3. An installation pipe 103 is fixedly installed at the top of the housing 1. The housing 1 is a hollow conical structure, and the bottom of the housing 1 is an arc surface. A plurality of groups of infrared receivers 101 are equidistantly installed at the bottom of the housing 1. The housing 1 can provide an installation position for the surrounding components and store the collected gas, so that the gas can be detected for its concentration in a sealed environment. The infrared receiver 101 adopts the TSOP34838 type. The infrared receiver 101 can receive the infrared light emitted by the infrared emitter 303. Then, after the infrared light penetrates the gas inside the housing 1, the infrared light is received to judge the concentration of the gas to be detected;

[0027] A detection component 3 is fixedly installed at the top of the housing 1. The detection component 3 can emit infrared light to detect the gas concentration inside the housing 1 and can adjust the emission angle of the infrared light, so as to detect the gas concentration at various positions inside the housing 1, improve the detection effect of the device, and reduce the error of the detection value;

[0028] A bottom shell 2 is fixedly installed at the bottom of the housing 1. The bottom shell 2 can support the housing 1, and through the arc surface at the bottom of the bottom shell 2, it is convenient to shake and rotate the device, so as to mix the gas inside the housing 1, so that the gas inside the housing 1 can be kept uniform during the detection of the device, and avoid the situation of stratification of the mixed gas.

[0029] Furthermore, the detection component 3 includes a mounting plate 301. An installation hole is provided inside the mounting plate 301, and a rubber cover 306 is fixedly installed inside the installation hole. An infrared emitter 303 is fixedly installed at the central position inside the rubber cover 306, and the top end of the infrared emitter 303 extends out of the rubber cover 306. The mounting plate 301 is fixedly connected to the top of the mounting pipe 103, which can provide a mounting position for the components at the top. The rubber cover 306 can flexibly connect the mounting plate 301 and the infrared emitter 303, so that when the infrared emitter 303 emits infrared light, it can also be tilted, thereby adjusting the emission angle of the infrared light, so as to detect the gas inside the housing 1 in multiple directions. The infrared emitter 303 adopts the SEC3100 type. The infrared emitter 303 can emit infrared light after being powered on. The emitted infrared light penetrates the measured gas, and the infrared light irradiates on several groups of infrared receivers 101, thereby realizing the detection of the gas concentration;

[0030] Four mounting rods 302 are fixedly installed at equal intervals on the top of the mounting plate 301. One side of the mounting rod 302 is installed with an adjusting cylinder 304 through a pin shaft. One end of the adjusting cylinder 304 away from the mounting rod 302 is installed with an adjusting ring 305 through a pin shaft. The adjusting ring 305 is sleeved on the side of the infrared emitter 303. The mounting rod 302 can provide a mounting position for the adjusting cylinder 304 and limit one end of the adjusting cylinder 304. The adjusting cylinder 304 can stretch, thereby pushing the adjusting ring 305 to move horizontally. The adjusting ring 305 can be pushed to move through the four adjusting cylinders 304, thereby driving the infrared emitter 303 to tilt, so as to adjust the emission angle of the infrared light emitted by the infrared emitter 303.

[0031] Furthermore, an air duct 102 is fixedly installed on one side of the housing 1, and a solenoid valve is fixedly installed at the connection position between the air duct 102 and the housing 1. The air duct 102 can guide the gas outside the housing 1 into the inside of the housing 1, so that the gas to be measured enters the housing 1, and the gas concentration is detected in a closed environment, thereby ensuring the detection accuracy of the gas detection device.

[0032] Furthermore, a display screen 104 is fixedly installed on the front of the housing 1, and the display screen 104 is electrically connected to several groups of infrared receivers 101 and the infrared emitter 303 through wires. The display screen 104 can display the detected data, and can adjust and control the working state of the device by touching the display screen 104.

[0033] Furthermore, a connecting wire 201 is fixedly installed on one side of the bottom case 2, and the connecting wire 201 is electrically connected to several groups of infrared receivers 101. The connecting wire 201 can connect several groups of infrared receivers 101, and then centrally transfer the data detected by the infrared receivers 101 to the display screen 104 for display.

[0034] Working principle: After the device is assembled, the gas to be measured is filled into the interior of the housing 1 through the air duct 102. The solenoid valve is closed, and the device is rotated or shaken so that the device shakes irregularly under the support of the bottom case 2 to mix the gas to be measured inside the housing 1. The touch display screen 104 controls the device to make the infrared emitter 303 emit infrared light. At the same time, the four adjustment cylinders 304 expand and contract simultaneously, driving the adjustment ring 305 and the infrared emitter 303 to move, causing the infrared emitter 303 to tilt. The infrared light moves in a spiral shape inside the housing 1, enabling the infrared light to penetrate the gas at various positions inside the housing 1 respectively, and then irradiating the infrared light onto a number of infrared receivers 101, so that the infrared receivers 101 obtain detection data, thereby detecting the concentration of the gas to be measured.

[0035] The above specific embodiments are merely several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A gas detection device, comprising a housing (1), a bottom housing (2) and a detection component (3), characterized in that: A mounting tube (103) is fixedly mounted on the top of the shell (1); the shell (1) is a hollow conical structure, and the bottom of the shell (1) is a curved surface; a plurality of groups of infrared receivers (101) are mounted at equal intervals on the bottom of the shell (1); A detection component (3) is fixedly mounted on the top of the housing (1); A bottom shell (2) is fixedly mounted on the bottom of the housing (1).

2. A gas detection device according to claim 1, characterized in that: The detection component (3) comprises a mounting plate (301), a mounting hole is provided inside the mounting plate (301), a rubber cover (306) is fixedly installed inside the mounting hole, an infrared emitter (303) is fixedly installed at a central position inside the rubber cover (306), and a top end of the infrared emitter (303) extends out of the rubber cover (306); Four mounting rods (302) are fixedly mounted at equal intervals on the top of the mounting plate (301); an adjusting cylinder (304) is mounted on one side of the mounting rod (302) via a pin; an adjusting ring (305) is mounted on one end of the adjusting cylinder (304) away from the mounting rod (302) via a pin; and the adjusting ring (305) is sleeved on the side of the infrared emitter (303).

3. A gas detection device according to claim 1, characterized in that: An air guide tube (102) is fixedly mounted on one side of the housing (1), and an electromagnetic valve is fixedly mounted at the connection position between the air guide tube (102) and the housing (1).

4. A gas detection device according to claim 1, characterized in that: A display screen (104) is fixedly mounted on the front of the housing (1), and the display screen (104) is electrically connected to a plurality of groups of infrared receivers (101) and infrared transmitters (303) via wires.

5. A gas detection device according to claim 1, characterized in that: A connecting wire (201) is fixedly mounted on one side of the bottom shell (2), and the connecting wire (201) is electrically connected to a plurality of groups of infrared receivers (101).

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