CN212646490U

CN212646490U - Disposable hydrophilic formaldehyde absorption box for air formaldehyde detection

Info

Publication number: CN212646490U
Application number: CN202020880059.5U
Authority: CN
Inventors: 覃山力
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-23
Filing date: 2020-05-23
Publication date: 2021-03-02
Anticipated expiration: 2030-05-23

Abstract

The utility model provides a disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box. Disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box includes: an absorption box; a bonding layer; the hydrophilic layer is adhered to the bottom of the inner wall of the absorption box; wherein the bonding layer is made of resin with certain viscosity after being heated and melted; and the hydrophilic layer is adhered to the top of the bonding layer, wherein the hydrophilic layer is made of hydrophilic particles or powder. The utility model provides a disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box, through setting up tie coat and hydrophilic layer, carry out the hydrophilicity to traditional absorption box and improve, when the basal area of box is absorbed in the volume increase through reducing the absorption liquid for the absorption liquid still can cover completely in absorption box inside, and then ensures that the surface area of absorption liquid can not diminish along with its volume, finally reaches the effect that shortens check-out time.

Description

Disposable hydrophilic formaldehyde absorption box for air formaldehyde detection

Technical Field

The utility model relates to a formaldehyde detection area especially relates to a disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box.

Background

Formaldehyde, a colorless irritant gas of the formula HCHO or CH₂OH, also known as forminal, is colorless and has stimulating effect on eyes, nose and the like; gas relative density 1.067 (1 ═ air), easy to dissolve in water and ethanol, and the concentration of aqueous solution is highestUp to 55%, usually 40%, called formalin, has reducibility, especially in alkaline solution, has stronger reducibility, can be combusted, vapor and air form explosive mixture, the explosion limit is 7-73% (volume), can be prepared by dehydrogenating or oxidizing methanol under the catalysis of metal such as silver, copper, etc., can also be separated from hydrocarbon oxidation products, and can be used as raw materials of phenolic resin, urea-formaldehyde resin, vinylon, urotropine, pentaerythritol, dye, pesticide and disinfectant, etc.

In the prior art, the indoor formaldehyde concentration is generally detected through a disposable formaldehyde absorption box, while the absorption box of the commonly used disposable formaldehyde absorption box in the market mostly adopts a plastic small white box as an absorption liquid container, the amount of absorbed formaldehyde is related to the concentration, the absorption area, the volume and the absorption time of the absorption liquid, the larger the absorption area is, the smaller the absorption liquid volume is, the longer the absorption time is, the higher the indoor formaldehyde concentration is, the deeper the solution color is, if the volume of the absorption liquid is reduced, the absorption area, namely the bottom area of the container can be increased, the absorption time can be reduced under the condition of absorbing the same amount of formaldehyde, but the plastic box is hydrophobic, so that the absorption liquid can not completely cover the plastic box only by reducing the volume of the absorption liquid, although the bottom area of the container is increased, the surface area of the absorption liquid is reduced, the effect of reducing the detection time cannot be obtained.

Therefore, it is necessary to provide a hydrophilic formaldehyde absorbent cartridge for disposable air formaldehyde detection to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box has solved the problem of current disposable formaldehyde detection box formaldehyde absorption time overlength.

In order to solve the technical problem, the utility model provides a disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box, include:

an absorption box; the absorption box is an absorption liquid carrier and comprises but is not limited to a plastic box, a plastic film, a glass box, a glass sheet, a culture dish or a watch glass.

The adhesive layer is adhered to the bottom of the inner wall of the absorption box; the material of the bonding layer is resin with certain viscosity after hot melting, and the bonding layer comprises but is not limited to one or more components of polycaprolactone, hot melt adhesive, polyolefin elastomer, polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polytetrafluoroethylene or polyvinylidene fluoride.

And the hydrophilic layer is adhered to the top of the bonding layer, wherein the material of the hydrophilic layer is particles or powder with certain hydrophilicity, and the particles or powder comprises but is not limited to one or more components of chloride, sulfate or oxide which is difficult to dissolve in hydrochloric acid and hydrofluoric acid.

Preferably, the ratio of the thickness of the adhesive layer to the hydrophilic layer is set to 2: 1.

Preferably, the top of the absorption box is clamped with a sealing cover, and a sealing ring is arranged outside the sealing cover.

Preferably, the bottom of absorption box has been seted up movable groove, the top intercommunication of activity inslot surface has the conduction groove, the inside of absorption box is provided with places the base, the equal fixedly connected with location axle of the left and right sides of placing the base bottom.

Preferably, the middle of the bottom of the base is fixedly connected with a connecting shaft, the bottom end of the connecting shaft penetrates through the top of the inner wall of the absorption box and extends to the inside of the movable groove, and one end of the connecting shaft, which extends to the inside of the movable groove, is rotatably connected with a fixing piece.

Preferably, the left side and the right side of the bottom of the inner wall of the absorption box are both provided with positioning holes, and the bottom of the absorption box is provided with an anti-slip pad.

Preferably, the outer surface of the absorption box is sleeved with an anti-falling sleeve which is made of sponge.

Compared with the prior art, the utility model provides a disposable air formaldehyde detects and absorbs box with hydrophilicity formaldehyde has following beneficial effect:

the utility model provides a disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box, through setting up tie coat and hydrophilic layer, utilize polycaprolactone's viscidity and silica's hydrophilicity, improve traditional absorption box, the hydrophilicity of absorption box has been improved greatly, when the basal area of box is absorbed in the volume increase through reducing the absorption liquid, make the absorption liquid still can cover completely in absorption box inside, and then ensure that the surface area of absorption liquid can not diminish along with its volume, finally reach the effect of shortening check-out time.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a hydrophilic formaldehyde absorbing box for disposable air formaldehyde detection provided by the present invention;

FIG. 2 is a schematic structural view of a second embodiment of the hydrophilic formaldehyde absorption box for disposable air formaldehyde detection provided by the present invention;

FIG. 3 is a schematic view showing the structure of the bottom of the absorption case shown in FIG. 2;

fig. 4 is a schematic view of the structure of the exterior of the absorbent box shown in fig. 2.

Reference numbers in the figures: 1. the absorption box, 2, tie coat, 3, hydrophilic layer, 4, sealed lid, 5, sealing washer, 6, activity groove, 7, conduction groove, 8, base, 9, location axle, 10, connecting axle, 11, mounting, 12, locating hole, 13, slipmat, 14, prevent falling the cover.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, wherein fig. 1 is a schematic structural diagram of a first embodiment of a hydrophilic formaldehyde absorbing box for disposable air formaldehyde detection according to the present invention. Disposable air formaldehyde detects uses hydrophilic formaldehyde absorption box, includes:

an absorption case 1;

the adhesive layer 2 is adhered to the bottom of the inner wall of the absorption box 1; wherein, the material of the bonding layer 2 is at least one of double faced adhesive tape, polycaprolactone, hot melt adhesive ethylene and vinyl acetate copolymer, polyolefin elastomer, polyethylene and polypropylene;

and the hydrophilic layer 3 is adhered to the top of the bonding layer 2, wherein the material of the hydrophilic layer 3 is at least one of chloride particles, sulfate particles, potassium nitrate particles and oxides which are difficult to dissolve in acid.

The absorption liquid is injected into the bonding layer 2 and the hydrophilic layer 3, the absorption liquid is mainly phenol reagent, the absorption box 1 is placed in a room, is contacted with formaldehyde in the room and reacts with the formaldehyde, a color developing agent is added after the absorption box is placed for a period of time for carrying out colored reaction, and the concentration of the formaldehyde is judged by observing the color depth;

the preparation steps of the absorption box 1 are as follows: taking a plastic box with the diameter of 40mm, respectively carrying out ultrasonic treatment for 30 minutes by using ethanol and deionized water, removing stains, and then drying for 10 minutes at 80 ℃; then 2g of polycaprolactone powder is quickly poured into the plastic box, (other resins such as hot melt adhesive powder, polyethylene or polypropylene and the like can be adopted) to horizontally round and shake the plastic box to ensure that the polycaprolactone powder completely covers the bottom of the plastic box, then the plastic box coated with the polycaprolactone powder is carefully placed in an oven to be heated, the temperature is set to 80 ℃, after the polycaprolactone is completely melted, the plastic box is taken out, 5g of 100-mesh silica particles are quickly added, other hydrophilic particles or powders such as barium sulfate powder, calcium chloride powder, sodium chloride particles, sodium sulfate particles and the like can be also adopted, the plastic box is horizontally round and shaken to ensure that the surface of the polycaprolactone completely covers the silica particles, the plastic box is preferably horizontally placed and stands for 10 minutes, after the polycaprolactone is cooled and solidified, the redundant silica particles are poured out, and then the absorption box 1 is manufactured, and the hydrophilicity-improved substance is not limited to a plastic box, but also includes a plastic film, a glass box, a glass sheet, a culture dish, a watch glass;

through setting up tie coat 2 and hydrophilic layer 3, utilize the viscidity of polycaprolactone and the hydrophilicity of silicon dioxide, improve traditional absorption box 1, the hydrophilicity of absorption box 1 has been improved greatly, when the volume through reducing the absorption liquid and increase the bottom surface area of absorption box 1, make the absorption liquid still can cover completely in absorption box 1 inside, and then ensure that the surface area of absorption liquid can not diminish along with its volume, finally reach the effect of shortening check-out time, it is more convenient when using, needn't wait for a long time.

The ratio of the thickness of the adhesive layer 2 to the thickness of the hydrophilic layer 3 is set to be 2:1, and the absorption box 1 is set to be cylindrical.

The utility model provides a disposable air formaldehyde detects as follows with hydrophilicity formaldehyde absorption box's theory of operation:

during the use, place absorption box 1 indoor, make its inside absorption liquid can contact with indoor formaldehyde, and react with it, it can take place colored reaction to add the colour-developing agent after ten minutes to stew, judge the concentration of formaldehyde through observing its colour depth, through setting up tie coat 2 and hydrophilic layer 3, utilize the viscidity of polycaprolactone and the hydrophilicity of silica, improve traditional absorption box 1, the hydrophilicity of absorption box 1 has been improved greatly, when the bottom surface area of box 1 is absorbed in the volume increase through reducing the absorption liquid, make the absorption liquid still can cover completely in absorption box 1 inside, and then ensure that the surface area of absorption liquid can not become along with its volume diminishes, finally reach the effect of shortening check-out time.

through setting up tie coat 2 and hydrophilic layer 3, utilize the viscidity of polycaprolactone and the hydrophilicity of silicon dioxide, improve traditional absorption box 1, improved absorption box 1's hydrophilicity greatly, when the basal area of box 1 is absorbed in the volume increase through reducing the absorption liquid for the absorption liquid still can cover completely in absorption box 1 inside, and then ensures that the surface area of absorption liquid can not diminish along with its volume, finally reaches the effect of shortening check-out time.

Second embodiment

Referring to fig. 2-4, based on the hydrophilic formaldehyde absorption box for disposable air formaldehyde detection provided by the first embodiment of the present invention, the second embodiment of the present invention provides another hydrophilic formaldehyde absorption box for disposable air formaldehyde detection, wherein the second embodiment does not hinder the independent implementation of the technical solution of the first embodiment.

Specifically, the utility model provides a another kind of disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box difference lies in:

the top of the absorption box 1 is clamped with a sealing cover 4, and a sealing ring 5 is arranged outside the sealing cover 4.

The sealing cover 4 is matched with the absorption box 1 and used for sealing the absorption box 1, and the sealing ring 5 plays a sealing role and prevents the detection liquid inside from leaking when the absorption box is not used.

Activity groove 6 has been seted up to the bottom of absorption box 1, the top intercommunication of 6 internal surfaces in activity groove has conduction groove 7, the inside of absorption box 1 is provided with places base 8, place the equal fixedly connected with location axle 9 in the left and right sides of base 8 bottom.

Place base 8 and be used for placing tie coat 2 and hydrophilic layer 3, when the test is accomplished, can directly take out base 8 and throw away, keep absorption box 1 to retrieve and recycle for an absorption box 1 can use repeatedly, has practiced thrift use cost, and location axle 9 plays the positioning action to base 8, makes base 8 can stable installation in absorption box 1.

The middle of placing the base 8 bottom is fixedly connected with connecting axle 10, the bottom of connecting axle 10 runs through the top of absorption box 1 inner wall and extends to the inside of activity groove 6, connecting axle 10 extends to the inside one end of activity groove 6 is rotated and is connected with mounting 11.

The base 8 can be fixed on the absorption box 1 by the matching arrangement of the fixing piece 11 and the connecting shaft 10, the absorption box 1 can be easily disassembled, the fixing piece 11 is matched with the conduction groove 7, when the base 8 is disassembled, the fixing piece 11 is rotated to ninety degrees, so that the outer part of the fixing piece is parallel to the conduction groove 7, the fixing piece 11 is ensured to move upwards through the conduction groove 7, then the base 8 can be disassembled by pushing the fixing piece 11 upwards, when in installation, the position of the fixing piece 11 needs to be adjusted firstly to ensure that the fixing piece can smoothly pass through the conduction groove 7, then the base 8 is directly arranged inside the absorption box 1, so that the positioning shaft 9 is clamped with the positioning hole 12, at the moment, the fixing piece 11 enters the movable groove 6 through the conduction groove 7, then the fixed part 11 is rotated to make the top of the fixed part fit and clamped with the top of the inner surface of the movable groove 6, and further the base 8 is fixed.

The left side and the right side of the bottom of the inner wall of the absorption box 1 are both provided with positioning holes 12, and the bottom of the absorption box 1 is provided with an anti-slip pad 13.

Locating hole 12 and location axle 9 looks adaptation through both joints, can play fine limiting displacement to base 8, avoids the base 8 activity, and slipmat 13 can increase the frictional force of absorption box 1 bottom, mainly is the rubber material, can remain stable when placing and hit him.

The outer surface of absorption box 1 surface has cup jointed prevents falling cover 14, prevent falling cover 14 and set up to the sponge material.

The anti-falling sleeve 14 is a sponge sleeve, has good elasticity, and plays a certain role in protecting the absorption box 1 from falling.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a disposable air formaldehyde detects uses hydrophilicity formaldehyde absorption box which characterized in that includes:

an absorption box;

the absorption box is an absorption liquid carrier and can be any one of a plastic box, a plastic film, a glass box, a glass sheet, a culture dish or a surface dish;

the adhesive layer is adhered to the bottom of the inner wall of the absorption box, wherein the adhesive layer is made of resin with certain viscosity after hot melting, and can be any one of polycaprolactone, hot melt adhesive, polyolefin elastomer, polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polytetrafluoroethylene or polyvinylidene fluoride;

the hydrophilic layer is adhered to the top of the adhesive layer, and is made of particles or powder with certain hydrophilicity, and the particles or powder can be any one of chloride, sulfate or oxide which is difficult to dissolve in hydrochloric acid and hydrofluoric acid.

2. The hydrophilic formaldehyde absorbent cartridge for disposable air formaldehyde detection according to claim 1, wherein the ratio of the thickness of the adhesive layer to the thickness of the hydrophilic layer is set to 2: 1.

3. The hydrophilic formaldehyde absorption box for the disposable air formaldehyde detection according to claim 1, wherein a sealing cover is fastened to the top of the absorption box, and a sealing ring is arranged outside the sealing cover.

4. The hydrophilic formaldehyde absorption box for disposable air formaldehyde detection according to claim 1, wherein a movable groove is formed in the bottom of the absorption box, a conduction groove is communicated with the top of the inner surface of the movable groove, a placement base is arranged in the absorption box, and positioning shafts are fixedly connected to the left side and the right side of the bottom of the placement base.

5. The hydrophilic formaldehyde absorption box for disposable air formaldehyde detection according to claim 4, wherein a connecting shaft is fixedly connected to the middle of the bottom of the placement base, the bottom end of the connecting shaft penetrates through the top of the inner wall of the absorption box and extends to the inside of the movable groove, and a fixing piece is rotatably connected to one end of the connecting shaft extending to the inside of the movable groove.

6. The hydrophilic formaldehyde absorption box for the disposable air formaldehyde detection according to claim 1, wherein the absorption box is provided with positioning holes on both the left and right sides of the bottom of the inner wall thereof, and the bottom thereof is provided with an anti-slip mat.

7. The hydrophilic formaldehyde absorption box for the disposable air formaldehyde detection according to claim 1, wherein an anti-falling sleeve is sleeved on the outer surface of the absorption box, and the anti-falling sleeve is made of sponge.