Rapid detection device for formaldehyde in air

Abstract

The utility model relates to the technical field of formaldehyde detection devices, and discloses a rapid air formaldehyde detection device which comprises a formaldehyde detector body, a detection bin is arranged in the formaldehyde detector body, a cover plate is mounted at the bottom of the formaldehyde detector body, the cover plate is arranged on the surface of the detection bin, and an air storage tank is mounted in the detection bin. A gas inlet mechanism is arranged in the gas storage tank, a gas inlet pipe is mounted at one end of the surface of the formaldehyde detector body, a lengthening pipe is arranged at one end of the gas inlet pipe, and a connecting mechanism connected with the lengthening pipe is arranged on the surface of the gas inlet pipe. Through the arrangement of the piston plate, gas in the gas storage tank can be extruded out and replaced, so that the formaldehyde sensor is in rapid contact with the gas in the gas storage tank, the device can rapidly detect formaldehyde, the using effect of the device is improved, meanwhile, the formaldehyde sensor is protected, and the service life of the device is prolonged. And the device is safer to use.

Description

Technical Field

[0001] This utility model relates to the technical field of formaldehyde detection devices, and in particular to a rapid formaldehyde detection device for air. Background Technology

[0002] Currently, formaldehyde detectors are one of the devices capable of detecting formaldehyde concentration. They typically use formaldehyde sensors to detect the concentration of formaldehyde. Gas sensors are usually based on chemically sensitive materials. These sensors react chemically with formaldehyde in the air and generate a measurable electrical signal. Based on the strength of the electrical signal, the formaldehyde detector can determine the concentration of formaldehyde. However, in actual use, some existing formaldehyde detectors suffer from insufficient contact between the air and the formaldehyde sensor due to poor indoor air circulation, which affects the accuracy of the test results. Furthermore, the detection process requires more waiting time, thus reducing the effectiveness of the detector. Therefore, these problems need to be addressed. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid formaldehyde detection device for air.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An air formaldehyde rapid detection device includes a formaldehyde detector body with a detection chamber inside. A cover plate is installed at the bottom of the detector body and is positioned on the surface of the detection chamber. A gas storage tank is installed inside the detection chamber, and an air inlet mechanism is provided inside the gas storage tank. An air inlet pipe is installed at one end of the surface of the formaldehyde detector body, and an extension pipe is provided at one end of the air inlet pipe. A connecting mechanism for connecting the extension pipe is provided on the surface of the air inlet pipe. Through the setting of a piston plate, the gas inside the gas storage tank can be squeezed out and replaced, thereby allowing the formaldehyde sensor to quickly contact the gas inside the gas storage tank. This enables the device to quickly detect formaldehyde, improving its effectiveness and protecting the formaldehyde sensor, making the device safer to use.

[0006] As a further embodiment of this utility model, the air intake mechanism includes two connecting pipes, which are respectively fixedly connected to both ends of the air storage tank. Both connecting pipes are connected to the inside of the air storage tank, and one end of each connecting pipe is fixedly connected to one end of the air intake pipe. A first one-way valve is installed on each of the two connecting pipes. An exhaust pipe is installed at both ends of the surface of the air storage tank. The two exhaust pipes are respectively inserted into two symmetrical sides of the surface of the formaldehyde detector body. A second one-way valve is installed on the surface of each of the two exhaust pipes, which allows air to enter the air storage tank through the two connecting pipes and also to exhaust air through the two exhaust pipes.

[0007] As a further embodiment of this utility model, a formaldehyde sensor is installed at the top of the gas storage tank. A piston plate is horizontally slidably connected inside the gas storage tank. The piston plate is vertically arranged, and a sealing ring is installed on the surface of the piston plate. The sealing ring fits against the inner wall of the gas storage tank. A lead screw is rotatably connected inside the formaldehyde detector body. The lead screw is horizontally arranged, and its two ends are respectively sleeved on opposite sides inside the gas storage tank. The lead screw is rotatably sleeved inside the piston plate, and the piston plate cooperates with the lead screw. A motor is installed at one end of the surface of the gas storage tank, and the output end of the motor is fixedly connected to one end of the lead screw to limit the horizontal sliding of the piston plate, thereby replacing the gas inside the gas storage tank.

[0008] As a further embodiment of this utility model, the connecting mechanism includes a connecting ring, and the end of the air inlet pipe away from the formaldehyde detector body is provided with a thread. The connecting ring is sleeved on one end of the air inlet pipe, and the connecting ring is engaged with the thread on the surface of the air inlet pipe. One end of the extension tube is sleeved inside the air inlet pipe, and the extension tube is engaged with the air inlet pipe. The other end of the extension tube is provided with multiple air inlet holes for installing the extension tube, thereby enabling the device to detect narrower locations.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. During use, the piston plate allows for the expulsion and replacement of the gas inside the gas tank, enabling the formaldehyde sensor to quickly come into contact with the gas inside the tank. This allows the device to quickly detect formaldehyde, thereby improving its effectiveness. It also protects the formaldehyde sensor, making the device safer to use.

[0011] 2. When using this device, the connecting ring and extension tube can be installed, making it more convenient to detect some narrow positions, thereby improving the ease of use of the device. Attached Figure Description

[0012] Figure 1 This is a front view of an air formaldehyde rapid detection device proposed in this utility model;

[0013] Figure 2 This is a bottom structural cross-sectional view of an air formaldehyde rapid detection device proposed in this utility model;

[0014] Figure 3 This is a schematic diagram of the air intake mechanism of an air formaldehyde rapid detection device proposed in this utility model.

[0015] In the diagram: 1. Formaldehyde detector body; 11. Detection chamber; 12. Gas tank; 13. Cover plate; 14. Formaldehyde sensor; 2. Inlet pipe; 21. Connecting pipe; 22. First one-way valve; 3. Extension pipe; 31. Connecting ring; 32. Inlet hole; 4. Exhaust pipe; 41. Second one-way valve; 5. Piston plate; 51. Sealing ring; 52. Lead screw; 53. Motor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figures 1-3 An air formaldehyde rapid detection device includes a formaldehyde detector body 1, a detection chamber 11 inside the formaldehyde detector body 1, a cover plate 13 installed at the bottom of the formaldehyde detector body 1, the cover plate 13 being disposed on the surface of the detection chamber 11, a gas storage tank 12 installed inside the detection chamber 11, an air intake mechanism inside the gas storage tank 12, an air intake pipe 2 installed at one end of the surface of the formaldehyde detector body 1, an extension pipe 3 installed at one end of the air intake pipe 2, and a connecting mechanism for connecting the extension pipe 3 on the surface of the air intake pipe 2. Through the setting of the piston plate 5, the gas inside the gas storage tank 12 can be squeezed out and replaced, thereby enabling the formaldehyde sensor 14 to quickly come into contact with the gas inside the gas storage tank 12, so that the device can quickly detect formaldehyde, thereby improving the effectiveness of the device, and also protecting the formaldehyde sensor 14, making the device safer to use.

[0018] Reference Figure 2 and Figure 3 In a preferred embodiment, the air intake mechanism includes two connecting pipes 21, which are fixedly connected to both ends of the air storage tank 12. Both connecting pipes 21 are connected to the inside of the air storage tank 12. One end of each connecting pipe 21 is fixedly connected to one end of the air intake pipe 2. A first one-way valve 22 is installed on each of the two connecting pipes 21. Exhaust pipes 4 are installed at both ends of the surface of the air storage tank 12. The two exhaust pipes 4 are respectively inserted through the symmetrical sides of the surface of the formaldehyde detector body 1. A second one-way valve 41 is installed on the surface of each of the two exhaust pipes 4, which allows air to enter the air storage tank 12 through the two connecting pipes 21 and also exhausts air through the two exhaust pipes 4.

[0019] Reference Figure 1 and Figure 3In a preferred embodiment, a formaldehyde sensor 14 is installed at the top of the gas storage tank 12. A piston plate 5 is horizontally slidably connected inside the gas storage tank 12. The piston plate 5 is vertically arranged, and a sealing ring 51 is installed on the surface of the piston plate 5. The sealing ring 51 fits against the inner wall of the gas storage tank 12. A lead screw 52 is rotatably connected inside the formaldehyde detector body 1. The lead screw 52 is horizontally arranged, and its two ends are respectively sleeved on opposite sides inside the gas storage tank 12. The lead screw 52 is rotatably sleeved inside the piston plate 5. The piston plate 5 and the lead screw 52 cooperate. A motor 53 is installed at one end of the surface of the gas storage tank 12. The output end of the motor 53 is fixedly connected to one end of the lead screw 52 to limit the horizontal sliding of the piston plate 5, thereby replacing the gas inside the gas storage tank 12.

[0020] Reference Figure 1 and Figure 3 In a preferred embodiment, the connecting mechanism includes a connecting ring 31. The end of the air inlet pipe 2 away from the formaldehyde detector body 1 is provided with a thread. The connecting ring 31 is sleeved on one end of the air inlet pipe 2, and the connecting ring 31 is engaged with the thread on the surface of the air inlet pipe 2. One end of the extension pipe 3 is sleeved inside the air inlet pipe 2, and the extension pipe 3 is engaged with the air inlet pipe 2. The other end of the extension pipe 3 is provided with a plurality of air inlet holes 32 for installing the extension pipe 3, thereby enabling the device to detect narrower locations.

[0021] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In actual use, the piston plate 5 can squeeze and replace the gas inside the gas storage tank 12, thereby allowing the formaldehyde sensor 14 to quickly come into contact with the gas inside the gas storage tank 12, enabling the device to quickly detect formaldehyde, thus improving the effectiveness of the device. It also protects the formaldehyde sensor 14, making the device safer to use. When in use, the device can be picked up, the air inlet pipe 2 aligned with the position to be detected, and then the device can be controlled so that the internal control system drives the motor 53, which in turn drives the lead screw 52 to rotate. At this time, the piston plate 5 inside the gas storage tank 12 will slide from one end to the other inside the gas storage tank 12. The piston plate 5 will compress the gas inside the gas tank 12, and then discharge it through one of the exhaust pipes 4. At the same time, under the action of the second one-way valve 41 and the first one-way valve 22, the gas tank 12 will draw in external gas through one of the connecting pipes 21 and the air inlet pipe 2, so that the gas to be detected enters the gas tank 12. The formaldehyde sensor 14 is set to detect the gas entering the tank. The detection results are then analyzed and displayed by the internal control system. When the device is not convenient to use in some confined spaces, the connecting ring 31 and the extension pipe 3 can be installed. The extension pipe 3 can then be inserted into the position to be detected, and air can be drawn into the gas tank 12 for detection in the same way, thereby improving the effectiveness of the device.

[0022] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid air formaldehyde detection device, comprising a formaldehyde detector body (1), characterized in that, The formaldehyde detector body (1) is internally provided with a detection bin (11), the bottom of the formaldehyde detector body (1) is provided with a cover plate (13), the cover plate (13) is arranged on the surface of the detection bin (11), the inside of the detection bin (11) is provided with a gas storage tank (12), the inside of the gas storage tank (12) is provided with an air inlet mechanism, the air inlet mechanism comprises a connecting pipe (21), the connecting pipe (21) is provided with two, the two connecting pipes (21) are fixedly connected to the two ends of the gas storage tank (12) respectively, the two connecting pipes (21) are both communicated with the inside of the gas storage tank (12), one end of the two connecting pipes (21) is fixedly connected to one end of the air inlet pipe (2), the first one-way valve (22) is arranged on the two connecting pipes (21), one end of the air inlet pipe (2) is provided with an extension pipe (3), the surface of the air inlet pipe (2) is provided with a connecting mechanism connected with the extension pipe (3).

2. The air formaldehyde rapid detection device according to claim 1, characterized in that, The surface of the gas storage tank (12) is provided with an exhaust pipe (4) at both ends, the two exhaust pipes (4) are respectively inserted into the surface of the formaldehyde detector body (1) on the two sides, and the second one-way valve (41) is arranged on the surface of the two exhaust pipes (4).

3. The air formaldehyde rapid detection device according to claim 2, characterized in that, The inside of the gas storage tank (12) is provided with a piston plate (5) which is horizontally slidably connected, the piston plate (5) is vertically arranged, the surface of the piston plate (5) is provided with a sealing ring (51), and the sealing ring (51) is matched with the inner wall of the gas storage tank (12).

4. The air formaldehyde rapid detection device according to claim 3, characterized in that, The inside of the formaldehyde detector body (1) is rotatably connected with a lead screw (52), the lead screw (52) is horizontally arranged, the two ends of the lead screw (52) are respectively sleeved on the opposite sides in the inside of the gas storage tank (12), the lead screw (52) is rotatably sleeved in the inside of the piston plate (5), the piston plate (5) is matched with the lead screw (52), one end of the surface of the gas storage tank (12) is provided with a motor (53), and the output end of the motor (53) is fixedly connected to one end of the lead screw (52).

5. The air formaldehyde rapid detection device according to claim 1, characterized in that, The connecting mechanism comprises a connecting ring (31), one end of the air inlet pipe (2) away from the formaldehyde detector body (1) is provided with a thread, the connecting ring (31) is sleeved on one end of the air inlet pipe (2), the connecting ring (31) is matched with the thread on the surface of the air inlet pipe (2), one end of the extension pipe (3) is sleeved in the inside of the air inlet pipe (2), the extension pipe (3) is matched with the air inlet pipe (2), and a plurality of air inlet holes (32) are arranged on the other end surface of the extension pipe (3).

Images