Wearable active formaldehyde sampling device

Abstract

The utility model discloses a wearable active formaldehyde sampling device and belongs to the technical field of formaldehyde sampling. The sampling device comprises a shell, wherein a first cavity and a second cavity are formed in the shell; the sampling mechanism is arranged in the shell and is used for sampling formaldehyde; the sealing cover is used for sealing the shell; the sliding cover can be connected with the shell in a sliding manner and is used for sealing the sealing cover; wherein the sampling mechanism comprises a tray arranged in the first cavity; the supporting columns are annularly arranged at the bottom of the tray at intervals and fixedly connected with the first cavity; the small fan is arranged in the second cavity, and an air inlet of the small fan is communicated with the first cavity. The wearable active formaldehyde sampling device is miniaturized in overall structure, can be conveniently worn on clothes of a user, has an active collection function, and can promote air circulation and simulate human breathing air inlet volume under the condition of slow air circulation or no air circulation, so that a better formaldehyde collection effect is achieved, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde sampling, and particularly relates to a wearable active formaldehyde sampling device. Background Art

[0002] Formaldehyde is a colorless gas. When the concentration is low, it is not easily detectable and can be easily masked by other odors, such as air fresheners. When the concentration is high, it has a strong pungent and asphyxiating odor and has an irritating effect on human eyes, nose, etc. Formaldehyde is a toxic gas that seriously endangers human health at present and appears more in substandard furniture and decoration materials. Long-term exposure to an environment with a high formaldehyde concentration, patients may experience dizziness, headache, tearing, nausea and vomiting, cough and chest tightness, leukemia, etc.

[0003] Therefore, after the building is formed and decorated, it is necessary to sample and detect formaldehyde. Existing formaldehyde sampling devices are divided into active and passive types. Generally, active formaldehyde sampling devices are usually large in volume and inconvenient to carry. Passive ones are generally portable sampling devices that can be worn on the user's clothes and move with the user to collect formaldehyde in the air. However, in an environment with poor air circulation, the difficulty of formaldehyde collection is high, and it is impossible to accurately detect the formaldehyde concentration. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a wearable active formaldehyde sampling device.

[0005] The technical solution of the utility model is: a wearable active formaldehyde sampling device, including: a housing, inside which there are a first cavity and a second cavity; a sampling mechanism for formaldehyde sampling provided inside the housing; a closing cover for closing the housing; and a sliding cover that can be slidably connected to the housing and seal the closing cover. Among them, the sampling mechanism includes: a tray provided inside the first cavity; several struts annularly spaced at the bottom of the tray and fixedly connected to the first cavity; a small fan provided inside the second cavity with an air inlet communicating with the first cavity; and an air outlet hole opened on the housing and communicating with the inside of the second cavity.

[0006] Further, a battery film group is provided on one side of the second cavity away from the small fan, and a clip capable of being clamped on clothes is provided on the outer wall of the housing.

[0007] Further, a partition plate is provided in the middle of the first cavity, and the partition plate can divide the first cavity into two placement cavities for formaldehyde collection tablets, and the sampling mechanism is located in one of the placement cavities.

[0008] Further, an insertion block extends from one side of the closing cover, a buckle is provided on the other side of the closing cover, and several air inlet holes are provided through the closing cover.

[0009] Further, a positioning groove for inserting the insertion block is provided on one side of the first cavity, and a clamping groove for cooperating with the clamping buckle is provided on the other side of the first cavity.

[0010] Further, inwardly bent extension blocks are provided on both sides of the sliding cover facing downwards, and sliding strips with inclined ends are provided on the extension blocks.

[0011] Further, sliding channels in contact with the sliding strips are provided on both sides of the bottom of the housing, and inclined surfaces opposite to the two ends of the sliding strips are provided at both ends of the sliding channels.

[0012] Further, a label area for attaching labels is provided at the bottom of the housing.

[0013] The beneficial technical effects of the present utility model are as follows: When the small fan is working, negative pressure is generated, causing air to enter the first cavity through the air inlet of the closed cover. Since the tablets are placed on the tray, the entering air will first contact the tablets, then enter the small fan through the gaps between the columns, and finally be discharged through the air outlet holes, thus completing the formaldehyde collection work. The overall structure is miniaturized, which can be conveniently worn on the user's clothes, and has an active collection function. In the case of slow or no air circulation, it can promote air circulation, simulate the air intake volume of human breathing, achieve a better formaldehyde collection effect, and improve the practicability. Description of the Drawings

[0014] Figure 1 is a top view schematic diagram of the structure of the present utility model;

[0015] Figure 2 is a front view sectional schematic diagram of the housing of the present utility model;

[0016] Figure 3 is a top view schematic diagram of the housing of the present utility model;

[0017] Figure 4 is a side view schematic diagram of the housing of the present utility model;

[0018] Figure 5 is a bottom view schematic diagram of the housing of the present utility model;

[0019] Figure 6 is a sectional schematic diagram of the structure of the closed cover of the present utility model;

[0020] Figure 7 is a side view schematic diagram of the structure of the sliding cover of the present utility model;

[0021] Figure 8 is a front view sectional schematic diagram of the structure of the sliding cover of the present utility model.

[0022] The corresponding component names represented by the numbers and letters in the figure:

[0023] 1. Housing; 11. First cavity; 12. Second cavity; 13. Battery module; 14. Clip; 15. Partition board; 16. Card slot; 17. Positioning slot; 18. Slideway; 19. Inclined surface; 2. Tray; 21. Column; 22. Small fan; 23. Air outlet hole; 3. Sealing cover; 31. Insert block; 32. Snap; 33. Air inlet hole; 4. Slide cover; 41. Extension block; 42. Slide bar; 5. Label area. Detailed implementation manners

[0024] In order to clearly understand the technical means of the present utility model and implement it according to the content of the specification, the following further describes the detailed implementation manners of the present utility model in combination with the drawings and embodiments. The following embodiments are used to illustrate the present utility model but not to limit the scope of the present utility model.

[0025] See the attached Figure 1-8 As shown in the figure, the wearable active formaldehyde sampling device of Embodiment 1 includes: a housing 1. Inside the housing 1, there are a first cavity 11 and a second cavity 12. The first cavity 11 is used for placing formaldehyde sampling tablets, and the second cavity 12 can install a device for extracting air to increase the air circulation inside the first cavity 11.

[0026] A sampling mechanism for formaldehyde sampling provided inside the housing 1; a sealing cover 3 for sealing the housing 1; and a slide cover 4 that can be slidably connected to the housing 1 and seal the sealing cover 3.

[0027] The sampling mechanism can perform formaldehyde sampling in the air. After the tablets are placed in the first cavity 11, the sealing cover 3 can seal the housing 1 to prevent the tablets from falling out. Since an air inlet needs to be provided on the sealing cover 3, the air inlet needs to be sealed by the slide cover 4 to avoid the tablets being contaminated by substances in the external air and affecting subsequent formaldehyde collection when formaldehyde detection is not carried out.

[0028] The sampling mechanism includes: a tray 2 provided inside the first cavity 11; several columns annularly spaced at the bottom of the tray 2 and fixedly connected to the first cavity 11; a small fan 22 provided inside the second cavity 12 and with an air inlet communicating with the first cavity 11; and an air outlet hole 23 opened on the housing 1 and communicating with the inside of the second cavity 12.

[0029] The sampling tablets can be placed on the tray 2. Since the tray 2 is fixed in the first cavity 11 through the columns 21, gaps will be formed between several annularly spaced columns 21, and air can normally circulate through the gaps. The air intake volume of the small fan 22 can be adjusted to 20 cubic meters to simulate the human breathing volume, so as to detect the harm degree of the collected formaldehyde to the human body. The air outlet hole 23 can discharge the extracted air from the inside of the housing 1.

[0030] When formaldehyde sampling is required, first slide the sliding cover 4 to prevent the sliding cover 4 from blocking the air inlet of the closing cover 3, and then start the small fan 22. When the small fan 22 is working, it will generate negative pressure, causing air to enter the first cavity 11 through the air inlet of the closing cover 3. Since the tablets are placed on the tray 2, the incoming air will first contact the tablets, then enter the small fan 22 through the gaps between the columns 21, and finally be discharged through the air outlet holes 23, thus completing the formaldehyde sampling work. The overall structure is miniaturized, which can be conveniently worn on the user's clothes, and has an active sampling function. In the case of slow or no air circulation, it can promote air circulation, simulate the air intake volume of human breathing, achieve a better formaldehyde sampling effect, and improve the practicability.

[0031] Further, a battery film group is provided on the side of the second cavity 12 away from the small fan 22, and a clip 14 capable of being clipped on clothes is provided on the outer wall of the housing 1.

[0032] The battery module 13 can supply power to the small fan 22, and the clip 14 can clip the device on clothes to achieve the purpose of wearing and make it easy to carry.

[0033] Further, a partition plate 15 is provided in the middle of the first cavity 11. The partition plate 15 can divide the first cavity 11 into two placement cavities for formaldehyde sampling tablets, and the sampling mechanism is located in one of the placement cavities.

[0034] Since there are two placement cavities, two tablets can be placed, and a spare tablet can be placed in the other placement cavity.

[0035] Further, an insertion block 31 extends from one side of the closing cover 3, a buckle 32 is provided on the other side of the closing cover 3, a plurality of air inlet holes 33 penetrate through the closing cover 3, a positioning groove 17 for inserting the insertion block 31 is provided on one side of the first cavity 11, and a clamping groove 16 for cooperating with the buckle 32 is provided on the other side of the first cavity 11.

[0036] The insertion block 31 can be inserted into the positioning groove 17, and then the buckle 32 is snapped into the clamping groove 16, so as to complete the installation of the closing cover 3. The operation is simple and convenient. The air inlet holes 33 can allow external air to enter the first cavity 11, so that formaldehyde in the air can contact the tablets.

[0037] Further, inwardly bent extension blocks 41 are provided on both sides of the sliding cover 4 downward, and slide bars 42 with inclined ends are provided on the extension blocks 41. Slideways 18 in contact with the slide bars 42 are provided on both sides of the bottom of the housing 1, and inclined surfaces 19 opposite to the two ends of the slide bars 42 are provided at both ends of the slideways 18.

[0038] The slide bar 42 can slide left and right on the slide 18, so that the slide cover 4 can move left and right on the shell 1 to expose and hide the air inlet 33. When formaldehyde sampling is not performed, the air inlet 33 can be blocked to prevent air from entering the first cavity 11. Conversely, the air inlet 33 can be exposed to allow outside air to enter the first cavity 11. The inclined surface 19 can make the slide bar 42 detach from the slide 18 when moving, thereby contacting the connection between the slide cover 4 and the shell 1, which is convenient for disassembly and installation.

[0039] Furthermore, a label area 5 is provided at the bottom of the housing 1 to which a label can be attached, and the label can be used to record sampling information and the like.

[0040] The above are only preferred implementations of the present invention and are not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An active wearable formaldehyde sampling device, characterized in that, Including: A housing (1), inside which there are a first cavity (11) and a second cavity (12); A sampling mechanism disposed inside the housing (1) for formaldehyde sampling; A closing cover (3) for closing the housing (1); And a sliding cover (4) that can be slidably connected to the housing (1) and seal the closing cover (3); Wherein, the sampling mechanism includes: a tray (2) disposed inside the first cavity (11); several struts annularly spaced at the bottom of the tray (2) and fixedly connected to the first cavity (11); a small fan (22) disposed inside the second cavity (12) and having an air inlet communicating with the first cavity (11); and an air outlet hole (23) opened on the housing (1) and communicating with the inside of the second cavity (12).

2. The wearable active formaldehyde sampling device according to claim 1, wherein On one side of the inside of the second cavity (12) away from the small fan (22), there is a battery membrane group, and on the outer wall of the housing (1), there is a clip (14) that can be clipped on clothes.

3. The wearable active formaldehyde sampling device according to claim 1, characterized in that, In the middle of the first cavity (11), there is a partition plate (15), which can divide the first cavity (11) into two placement cavities for formaldehyde collection tablets, and the sampling mechanism is located in one of the placement cavities.

4. The wearable active formaldehyde sampling device according to claim 1, characterized in that, On one side of the closing cover (3), there is an insertion block (31) extending, on the other side of the closing cover (3), there is a buckle (32), and several air inlet holes (33) are penetrated through the closing cover (3).

5. The wearable active formaldehyde sampling device according to claim 4, wherein On one side of the first cavity (11), there is a positioning groove (17) for the insertion block (31) to insert, and on the other side of the first cavity (11), there is a clamping groove (16) for the buckle (32).

6. The wearable active formaldehyde sampling device according to claim 1, wherein On both sides of the sliding cover (4) facing downwards, there are inwardly bent extension blocks (41), and on the extension blocks (41), there are sliding strips (42) with both ends inclined.

7. The wearable active formaldehyde sampling device according to claim 6, characterized in that, On both sides of the bottom of the housing (1), there are sliding channels (18) in contact with the sliding strips (42), and at both ends of the sliding channels (18), there are inclined surfaces (19) opposite to both ends of the sliding strips (42).

8. The wearable active formaldehyde sampling device according to claim 1, wherein, On the bottom of the housing (1), there is a label area (5) where a label can be pasted.

Images