Formaldehyde sampler for environment detection

Abstract

The utility model provides a formaldehyde sampler for environment detection, which relates to the technical field of air detection and comprises a base, a supporting block is fixedly mounted at the upper end of the base, and a collecting mechanism is mounted between the base and the supporting block. According to the temporary storage device, a user places the temporary storage barrel between the clamping groove and the air inducing pipe, then the spring can drive the push block to move upwards, so that the push block is matched with the clamping groove and the air inducing pipe to clamp and position the temporary storage barrel, then the fan extracts and blows outside air, and the air is blown into the temporary storage barrel along the air inducing pipe; the adsorption block in the temporary storage barrel adsorbs and collects formaldehyde contained in air, then after collection is completed, a user takes down the temporary storage barrel, and sealing covers are installed at the upper end and the lower end of the temporary storage barrel through threads correspondingly, so that sealing work of the temporary storage barrel is achieved, the user can conveniently recycle the temporary storage barrel in a unified mode in the later period, and the use effect is good. And leakage and mixing of the samples collected in each temporary storage cylinder are also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air detection, in particular to a formaldehyde sampler for environmental detection. Background Art

[0002] With the rapid development of industrialization and urbanization, formaldehyde, as a common indoor air pollutant, has attracted widespread attention. Formaldehyde not only has a pungent odor, but long-term exposure may also have serious effects on human health. In order to ensure the formaldehyde content in the environment, it is often necessary to collect formaldehyde through a collector. Traditional formaldehyde collection methods mostly use passive adsorption or liquid absorption technology, but these methods have the problems of low sampling efficiency, susceptibility to interference from other gases, and difficulty in isolation and recovery after sampling. Therefore, we propose a formaldehyde sampler for environmental testing to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide a formaldehyde sampler for environmental detection, which solves the problems that traditional formaldehyde collection methods mostly use passive adsorption or liquid absorption technology, but these methods have low sampling efficiency, are easily interfered by other gases, and are difficult to isolate and recover after sampling.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A formaldehyde sampler for environmental detection comprises a base, a support block is fixedly mounted on the upper end of the base, a collection mechanism is installed between the base and the support block, a movable wheel is installed on the lower end of the base, the collection mechanism comprises a fixed block and a push block, the fixed block is fixedly mounted on the upper end of the front surface of the support block, the push block is movably mounted between the fixed block and the base, a temporary storage cylinder is clamped and installed between the push block and the fixed block, an adsorption block is installed inside the temporary storage cylinder, a fan is installed inside the fixed block, and the fan is connected to the temporary storage cylinder.

[0006] Preferably, a placement slot is provided at the upper end of the fixing block, the fan is installed inside the placement slot, and a filter is installed at the upper end of the placement slot.

[0007] Preferably, an air duct is installed through the lower end of the placement groove, the upper end of the temporary storage tube is snap-fitted to the lower end of the air duct, a sealing block is installed at the lower end of the air duct, and the sealing block is fitted to the temporary storage tube.

[0008] Preferably, a slot is provided at the upper end of the push block, the lower end of the temporary storage tube is snap-fitted and installed inside the slot, a plurality of exhaust holes are penetrated at the inner lower end of the temporary storage tube, and an exhaust hole is penetrated at the inner lower end of the slot.

[0009] Preferably, a guide groove is provided at the lower end of the front surface of the support block, a slider is fixedly installed on the rear side of the push block, the slider is movably installed inside the guide groove, guide rods are fixedly installed at both ends of the guide groove, the rod bodies of the guide rods are movably installed through the inside of the slider, and springs are respectively sleeved on the outside of the rod bodies of the guide rods located at the lower end of the slider.

[0010] Preferably, a battery is installed inside the base, and the battery is electrically connected to the fan through a wire. The upper and lower ends of the temporary storage tube are respectively installed with sealing covers through threads.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) In the present invention, the user places the temporary storage tube between the card slot and the induced draft tube, and then the spring drives the push block to move upward, so that the push block cooperates with the card slot and the induced draft tube to engage and position the temporary storage tube, and then the fan draws in the outside air and blows the air into the interior of the temporary storage tube along the induced draft tube, and the adsorption block in the temporary storage tube adsorbs and collects the formaldehyde contained in the air. After the collection is completed, the user removes the temporary storage tube and installs sealing covers on the upper and lower ends of the temporary storage tube through threads, thereby achieving the sealing of the temporary storage tube, which can not only facilitate the subsequent user to uniformly recycle the temporary storage tubes, but also avoid the leakage and mixing of the samples collected in each temporary storage tube, thereby improving the accuracy of the subsequent sample detection data.

[0013] (2) In the present invention, after the user places the temporary storage tube between the card slot and the air duct, the spring pushes the push block, so that the upper and lower ends of the temporary storage tube are respectively engaged between the card slot and the air duct, and the upper end of the temporary storage tube and the sealing block are fitted together to avoid leakage when the gas flows along the air duct, thereby improving the adsorption effect of the adsorption block on the sample, and also improving the overall stability of the temporary storage tube when collecting the sample, which is simpler and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a formaldehyde sampler for environmental testing according to the utility model;

[0015] Figure 2 This is a front view structural diagram of a formaldehyde sampler for environmental testing according to the utility model;

[0016] Figure 3 The utility model is a formaldehyde sampler for environmental detection Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0017] Figure 4 The utility model is a formaldehyde sampler for environmental detection Figure 3 Enlarged structural diagram at B in the middle.

[0018] In the figure: 1. base; 2. support block; 3. collection mechanism; 301. fixing block; 302. placement slot; 303. fan; 304. filter; 305. air duct; 306. sealing block; 307. temporary storage tube; 308. adsorption block; 309. push block; 310. slot; 311. exhaust hole; 312. exhaust hole; 313. guide slot; 314. slider; 315. guide rod; 316. spring; 317. battery; 4. moving wheel. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 4 As shown, an embodiment of the utility model proposes a formaldehyde sampler for environmental detection, including a base 1, a support block 2 is fixedly installed on the upper end of the base 1, a collecting mechanism 3 is installed between the base 1 and the support block 2, a moving wheel 4 is installed at the lower end of the base 1, the collecting mechanism 3 includes a fixed block 301 and a push block 309, the fixed block 301 is fixedly installed on the upper end of the front surface of the support block 2, the push block 309 is movably installed between the fixed block 301 and the base 1, a temporary storage tube 307 is clamped and installed between the push block 309 and the fixed block 301, an adsorption block 308 is installed inside the temporary storage tube 307, a fan 303 is installed inside the fixed block 301, and the fan 303 is connected to the temporary storage tube 307.

[0021] like Figure 3 and Figure 4As shown, in another embodiment of the utility model, a placement groove 302 is provided at the upper end of the fixing block 301, the fan 303 is installed inside the placement groove 302, a filter screen 304 is installed at the upper end of the placement groove 302, an air duct 305 is installed through the lower end of the interior of the placement groove 302, the upper end of the temporary storage tube 307 is snap-fitted and installed at the lower end of the interior of the air duct 305, a sealing block 306 is installed at the lower end of the interior of the air duct 305, the sealing block 306 and the temporary storage tube 307 are fitted together, a card slot 310 is provided at the upper end of the push block 309, the lower end of the temporary storage tube 307 is snap-fitted and installed inside the card slot 310, a plurality of exhaust holes 311 are penetrated at the lower end of the interior of the temporary storage tube 307, and the card slot An exhaust hole 312 is penetrated at the lower end of the inner part of 310, a guide groove 313 is provided at the lower end of the front surface of the support block 2, a slider 314 is fixedly installed on the rear side of the push block 309, the slider 314 is movably installed inside the guide groove 313, guide rods 315 are fixedly installed at both ends of the inner part of the guide groove 313, the rod bodies of the guide rods 315 are movably penetrated and installed inside the slider 314, springs 316 are respectively sleeved and installed on the outer side of the rod bodies of the guide rods 315 located at the lower end of the slider 314, a battery 317 is installed inside the base 1, the battery 317 is electrically connected to the fan 303 through a wire, and sealing covers are respectively installed at the upper and lower ends of the temporary storage tube 307 through threads.

[0022] The user pushes the whole to the specified position by moving the wheel 4, and then pushes the push block 309 downward to open the gap between the push block 309 and the fixed block 301, and then the user can put the temporary storage tube 307 between the push block 309 and the fixed block 301, so that the lower end of the temporary storage tube 307 is temporarily stuck in the inside of the card slot 310, and then the user slowly releases the push block 309, allowing the spring 316 to push the push block 309 to move upward, so that the push block 309 drives the temporary storage tube 307 to be stuck in the inside of the air duct 305, and the temporary storage tube 307 is fitted with the sealing block 306 to realize the installation of the temporary storage tube 307, and then the user can The fan 303 can be turned on to blow the outside air into the temporary storage tube 307 along the placement slot 302 and the air duct 305, and then the adsorption block 308 in the temporary storage tube 307 will adsorb and collect the formaldehyde in the air. After the temporary storage tube 307 cooperates with the adsorption block 308 to complete the collection, the user can remove the temporary storage tube 307 and install sealing covers on the upper and lower ends of the temporary storage tube 307 through threads to achieve the sealing of the interior of the temporary storage tube 307, which can prevent the sample collected in the temporary storage tube 307 from floating, and also prevent the gas mixing when multiple temporary storage tubes 307 are placed in a unified manner, which is simpler and more convenient.

[0023] The filter 304 is used to isolate impurities such as leaves and plastic bags in the air to prevent the impurities from entering the interior of the fan 303 and causing damage to the fan 303;

[0024] The adsorption block 308 is made of materials such as activated carbon or silica gel, which facilitates the adsorption block 308 to adsorb and collect formaldehyde in the air.

[0025] The working principle of the formaldehyde sampler for environmental testing:

[0026] When in use, the user first pushes the whole to the specified position through the moving wheel 4, and then the user pushes the pushing block 309 downward to open the distance between the pushing block 309 and the fixing block 301, and then the user can put the temporary storage tube 307 between the pushing block 309 and the fixing block 301, so that the lower end of the temporary storage tube 307 is temporarily stuck in the inside of the card slot 310, and then the user slowly releases the pushing block 309, allowing the spring 316 to push the pushing block 309 to move upward, so that the pushing block 309 drives the temporary storage tube 307 to be stuck in the inside of the air duct 305, and the temporary storage tube 307 is fitted with the sealing block 306 to realize the installation of the temporary storage tube 307, and then use The user can turn on the fan 303 to let the fan 303 blow the outside air into the temporary storage tube 307 along the placement groove 302 and the air duct 305, and then the adsorption block 308 in the temporary storage tube 307 will adsorb and collect the formaldehyde in the air. After the temporary storage tube 307 cooperates with the adsorption block 308 to complete the collection, the user can remove the temporary storage tube 307 and install sealing covers on the upper and lower ends of the temporary storage tube 307 through threads to achieve sealing of the interior of the temporary storage tube 307, which can prevent the samples collected in the temporary storage tube 307 from floating, and also prevent the gas mixing when multiple temporary storage tubes 307 are placed in a unified manner, which is simpler and more convenient.

[0027] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A formaldehyde sampler for environmental detection, comprising a base (1), characterized in that: A support block (2) is fixedly mounted on the upper end of the base (1); a collection mechanism (3) is mounted between the base (1) and the support block (2); a moving wheel (4) is mounted on the lower end of the base (1); the collection mechanism (3) comprises a fixed block (301) and a push block (309); the fixed block (301) is fixedly mounted on the upper end of the front surface of the support block (2); the push block (309) is movably mounted between the fixed block (301) and the base (1); a temporary storage cylinder (307) is mounted in a snap-fit ​​manner between the push block (309) and the fixed block (301); an adsorption block (308) is mounted inside the temporary storage cylinder (307); a fan (303) is mounted inside the fixed block (301); and the fan (303) is connected to the temporary storage cylinder (307).

2. A formaldehyde sampler for environmental detection according to claim 1, characterized in that: The upper end of the fixing block (301) is provided with a placement groove (302), the fan (303) is installed inside the placement groove (302), and the upper end of the placement groove (302) is installed with a filter screen (304).

3. A formaldehyde sampler for environmental detection according to claim 2, characterized in that: An air duct (305) is installed through the lower end of the interior of the placement groove (302); the upper end of the temporary storage tube (307) is snap-fitted and installed on the lower end of the interior of the air duct (305); a sealing block (306) is installed on the lower end of the interior of the air duct (305); and the sealing block (306) and the temporary storage tube (307) are in close contact with each other.

4. A formaldehyde sampler for environmental detection according to claim 1, characterized in that: The upper end of the push block (309) is provided with a slot (310), the lower end of the temporary storage tube (307) is snap-fitted and installed inside the slot (310), a plurality of exhaust holes (311) are penetrated through the lower end of the interior of the temporary storage tube (307), and an exhaust hole (312) is penetrated through the lower end of the interior of the slot (310).

5. The formaldehyde sampler for environmental detection according to claim 1, characterized in that: A guide groove (313) is provided at the lower end of the front surface of the support block (2); a slider (314) is fixedly installed on the rear side of the push block (309); the slider (314) is movably installed inside the guide groove (313); guide rods (315) are fixedly installed at both ends inside the guide groove (313); the rod body of the guide rod (315) is movably installed inside the slider (314); and a spring (316) is sleeved and installed on the outer side of the rod body of the guide rod (315) located at the lower end of the slider (314).

6. A formaldehyde sampler for environmental detection according to claim 1, characterized in that: A storage battery (317) is installed inside the base (1), and the storage battery (317) is electrically connected to the fan (303) via a wire. The upper and lower ends of the temporary storage cylinder (307) are respectively provided with sealing covers via threads.

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