Dual-channel air detection device

Abstract

The utility model discloses a double-channel air detection device, and belongs to the technical field of gas detection devices. A double-channel air detection device comprises a shell, a first detection channel and a second detection channel, the first detection channel and the second detection channel are symmetrically formed in the shell, a sliding groove is formed in the inner top wall of the shell, a T-shaped sliding block is arranged in the sliding groove in a sliding mode, and a detection device is fixedly installed at the bottom of the sliding block. A switching block is fixedly installed on the side face of the detection device, the switching block is arranged on the shell in a sliding mode, a transfer channel is fixedly installed on the side, away from the switching block, of the detection device, and first air inlets are formed in the two ends of the transfer channel. The switching block slides to drive the detection device to carry out detection at different detection channels, the traditional mode that two detection devices correspond to two detection channels is changed into the mode that one detection device corresponds to the two detection channels in a switchable mode, and the integration cost of the dual-channel air detection device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection devices, and more specifically to a dual-channel air detection device. Background Art

[0002] An air detection device is a device used to monitor and analyze the concentration of harmful substances in the air. It can detect various pollutants in the air, such as particulate matter, harmful gases, volatile organic compounds (VOCs), etc. It is usually used in environmental monitoring, indoor air quality assessment, industrial process control, and health and safety management.

[0003] In order to detect different types of air pollutants, existing air detection equipment often has a dual-channel setting. The dual-channel air detection device can detect a variety of pollutants in a complex air environment, and when one channel is blocked or damaged, the other channel can still ensure that the device can be used. However, the dual-channel air detection devices currently on the market are often set up in a way that two detection channels are each equipped with a detection device. This setting makes the integration cost of the device too high. In view of this, a dual-channel air detection device is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the utility model is to provide a dual-channel air detection device to solve the problems raised in the above background technology.

[0006] 2. Technical solution

[0007] A dual-channel air detection device comprises a shell and a first detection channel and a second detection channel symmetrically arranged on the shell, a slide groove is provided on the inner top wall of the shell, a T-shaped slider is slidably provided in the slide groove, a detection device is fixedly installed on the bottom of the slider, a switching block is fixedly installed on the side of the detection device, the switching block is slidably provided on the shell, and is used to drive the detection device to switch between the first detection channel and the second detection channel, a transfer channel is fixedly installed on the side of the detection device away from the switching block, and first air inlets for gas introduction are provided at both ends of the transfer channel.

[0008] Preferably, a display screen is fixedly mounted on the housing, and is used to display data measured by the detection device.

[0009] Preferably, a detection tube is fixedly installed at the bottom of the first detection channel and the second detection channel, an extension tube head is fixedly installed at the bottom of the detection tube, and a rubber sleeve is sleeved on the detection tube for sealing the first air inlet when the detection tube is inserted into the transfer channel.

[0010] Preferably, a closing block is fixedly installed in the transfer channel, and the closing block is used to separate the two first air inlets opened on the transfer channel. Springs are fixedly installed at both ends of the closing block, one end of the spring is fixedly connected to the closing block, and the other end of the spring is fixedly installed with a closing plate for closing the first air inlet.

[0011] Preferably, two second air inlets are opened on the side of the transfer channel close to the detection device, and the two second air inlets are respectively connected to the first detection channel and the second detection channel, and the second air inlets are used to introduce the air in the transfer channel into the detection device for detection.

[0012] Preferably, the switching block is arranged in a T-shape, and a channel for the switching block to slide is opened on the shell.

[0013] Preferably, the size of the slide groove is matched with the slider, so that when the switching block drives the detection channel to slide, the slider moves in a straight line in the slide groove.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The sliding action of the switching block drives the detection device to detect at different detection positions corresponding to different detection channels, so that one detection device corresponds to two detection channels, reducing the integration cost of the dual-channel air detection device;

[0017] 2. By setting the closing block and the closing plate on the transfer channel, the device can ensure the sealing inside the device when the detection tube passes the gas into the device during gas detection, avoiding the influence of the air of different samples in the previous detection channel on the detection sample after switching the detection environment.

[0018] 3. The device is simple to integrate and is convenient for later maintenance or repair. When one detection channel is blocked or damaged during use, it can continue to be used through another detection channel. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a bottom view schematic diagram of the utility model with the shell bottom plate removed;

[0021] Figure 3 It is a cross-sectional schematic diagram of the technical secondary school passage of the utility model;

[0022] Figure 4This is a state diagram of the detection through pipe of the furnace body of the utility model when it is inserted into the transfer channel.

[0023] Description of the numbers in the figure:

[0024] 1. housing, 11. first detection channel, 12. second detection channel, 13. display screen, 14. switching block, 15. slide slot;

[0025] 2. Detection pipe, 21. Extension pipe head, 22. Rubber sleeve;

[0026] 3. transfer channel, 31. first air inlet, 32. closing block, 33. spring, 34. closing plate, 35. second air inlet;

[0027] 4. Detection device, 41. Slider. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0030] Example:

[0031] This embodiment provides a dual-channel air detection device. Figure 1-Figure 4, including a housing 1 and a first detection channel 11 and a second detection channel 12 symmetrically arranged on the housing 1. The bottom of the housing 1 should be detachably connected to the housing 1, so that the device can be disassembled for later maintenance, cleaning or repair. A slide groove 15 is provided on the top wall of the housing 1, and a slider 41 arranged in a T shape is slidably arranged in the slide groove 15. The size of the slide groove 15 is adapted to the slider 41, so that when the switch block 14 drives the detection channel to slide, the slider 41 moves in a straight line in the slide groove 15. A detection device 4 is fixedly installed at the bottom of the slider 41, and a switch block 14 is fixedly installed on the side of the detection device 4. The switch block 14 is slidably arranged on the housing 1, which is used to drive the detection device 4 to switch between the first detection channel 11 and the second detection channel 12. The switch block 14 is arranged in a T shape, and a channel for the switch block 14 to slide is provided on the housing 1. A transfer channel 3 is fixedly installed on the side of the detection device 4 away from the switch block 14, and both ends of the transfer channel 3 are provided with a first air inlet 31 for gas to enter. The display screen 13 is fixedly mounted on the top of the housing 1 . The display screen 13 is connected to the detection device 4 . The display screen 13 is used to display data measured by the detection device 4 .

[0032] Specifically, during the setting, devices for locking the switching block 14 after the switching block 14 completes the switching can be set at both ends of the channel where the switching block 14 slides, so as to further optimize the use experience of the detection device 4.

[0033] In a further embodiment, the bottom of the first detection channel 11 and the second detection channel 12 are fixedly installed with a detection tube 2, the detection tube 2 is L-shaped, the top of the detection tube 2 passes through the shell 1, and the output end of the bottom of the detection tube 2 is fixedly installed with an extension tube head 21, and the shape of the extension tube head 21 is as follows: Figure 3 As shown, it is crescent-shaped, and the extension tube head 21 is used to squeeze the closing plate 34 and the spring 33 so that the output end of the detection tube 2 extends into the transfer channel 3. After the extension tube head 21 passes into the transfer channel 3, the air to be detected passes through the output end of the detection tube 2 and enters the transfer channel 3 through the gap between the two extension tube heads 21. A rubber sleeve 22 is provided on the detection tube 2 for closing the first air inlet 31 when the detection tube 2 is inserted into the transfer channel 3. The rubber sleeve 22 is used to close the gap between the detection tube 2 and the first air inlet 31.

[0034] In a further embodiment, a closing block 32 is fixedly installed in the transfer channel 3, and the closing block 32 is used to separate the two first air inlets 31 opened on the transfer channel 3. Springs 33 are fixedly installed at both ends of the closing block 32, one end of the spring 33 is fixedly connected to the closing block 32, and the other end of the spring 33 is fixedly installed with a closing plate 34 for closing the first air inlet 31. Two second air inlets 35 are opened in the transfer channel 3, and the second air inlets 35 are located on a side of the transfer channel 3 close to the detection device 4, and the two second air inlets 35 correspond to one detection channel respectively, and the second air inlet 35 is used to introduce the air in the transfer channel 3 into the detection device 4 for detection.

[0035] The working principle of the utility model is as follows: when performing detection, the switching block 14 is first pushed to align the transfer channel 3 with one of the two detection channels. When pushing, the closing plate 34 squeezes the spring 33 under the action of the extension pipe head 21, and then the rubber sleeve 22 on the detection tube 2 closes the first air inlet 31. The air introduced by the detection tube 2 enters the transfer channel 3 and then enters the detection device 4 through the second air inlet 35 for detection, and then the display screen 13 displays the detection side result. When switching the detection channel, the switching block 14 is pushed to move the detection device 4 and the transfer channel 3 to another detection channel.

[0036] It should be noted that, in the specific setting, a cover plate should be provided at the top of the detection tube 2, that is, at its input end, to prevent dust from entering the detection tube 2 when the device is idle, thereby affecting the accuracy of subsequent device detection.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A dual-channel air detection device, comprising a housing (1) and a first detection channel (11) and a second detection channel (12) symmetrically arranged on the housing (1), characterized in that: A slide groove (15) is provided on the inner top wall of the shell (1), a T-shaped slider (41) is slidably provided in the slide groove (15), a detection device (4) is fixedly installed at the bottom of the slider (41), a switching block (14) is fixedly installed on the side of the detection device (4), the switching block (14) is slidably provided on the shell (1), and is used to drive the detection device (4) to switch between the first detection channel (11) and the second detection channel (12), a transfer channel (3) is fixedly installed on the side of the detection device (4) away from the switching block (14), and first air inlets (31) for gas introduction are provided at both ends of the transfer channel (3).

2. A dual-channel air detection device according to claim 1, characterized in that: A display screen (13) is fixedly mounted on the housing (1) and is used to display data measured by the detection device (4).

3. A dual-channel air detection device according to claim 1, characterized in that: A detection tube (2) is fixedly mounted at the bottom of each of the first detection channel (11) and the second detection channel (12); an extension tube head (21) is fixedly mounted at the bottom of each of the detection tubes (2); and a rubber sleeve (22) is sleeved on the detection tube (2) for sealing the first air inlet (31) when the detection tube (2) is inserted into the transfer channel (3).

4. A dual-channel air detection device according to claim 1, characterized in that: A closing block (32) is fixedly installed in the transfer channel (3), and the closing block (32) is used to separate two first air inlets (31) opened on the transfer channel (3). Springs (33) are fixedly installed at both ends of the closing block (32), one end of the spring (33) is fixedly connected to the closing block (32), and the other end of the spring (33) is fixedly installed with a closing plate (34) for closing the first air inlet (31).

5. A dual-channel air detection device according to claim 1, characterized in that: Two second air inlets (35) are provided on a side of the transfer channel (3) close to the detection device (4), and the two second air inlets (35) are respectively connected to the first detection channel (11) and the second detection channel (12), and the second air inlets (35) are used to introduce air in the transfer channel (3) into the detection device (4) for detection.

6. A dual-channel air detection device according to claim 1, characterized in that: The switching block (14) is arranged in a T-shape, and a channel for the switching block (14) to slide is provided on the housing (1).

7. A dual-channel air detection device according to claim 1, characterized in that: The size of the slide groove (15) is adapted to the sliding block (41), so that when the switching block (14) drives the detection channel to slide, the sliding block (41) moves in a straight line in the slide groove (15).

Images