CN114674773B - Rapid nondestructive testing device and nondestructive testing method for formaldehyde emission - Google Patents
Rapid nondestructive testing device and nondestructive testing method for formaldehyde emission Download PDFInfo
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- CN114674773B CN114674773B CN202210597964.3A CN202210597964A CN114674773B CN 114674773 B CN114674773 B CN 114674773B CN 202210597964 A CN202210597964 A CN 202210597964A CN 114674773 B CN114674773 B CN 114674773B
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- G01N1/02—Devices for withdrawing samples
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- G01N1/2294—Sampling soil gases or the like
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
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Abstract
A rapid nondestructive detection device and a nondestructive detection method for formaldehyde emission belong to the technical field of formaldehyde detection, and aim to solve the problems that formaldehyde in furniture is not released any more after the formaldehyde content in air reaches a certain amount, air circulation is required, detection is troublesome, the sealing property in the furniture is difficult to guarantee, and in addition, the content of the formaldehyde is required to be measured after sampling is completed, and the collection of the formaldehyde is inconvenient; according to the invention, the teeth on the bevel gear are meshed with the tooth grooves on two sides inside the arc-shaped ring back and forth, so that the arc-shaped ring finally reciprocates up and down, the piston is driven by the movable rod to move up and down inside the cylinder body when the arc-shaped ring reciprocates up and down, air between the first shell and an object to be detected is conveyed into the collecting funnel when the piston moves up and down inside the cylinder body, and formaldehyde in the air is dissolved into distilled water when entering the collecting funnel again.
Description
Technical Field
The invention relates to the technical field of formaldehyde detection, in particular to a rapid nondestructive detection device and a nondestructive detection method for formaldehyde emission.
Background
Formaldehyde is an organic chemical substance, is colorless and irritant gas, has an irritant effect on human eyes, noses and the like, has a gas relative density of 1.067 (air = 1) and a liquid density of 0.815g/cm for thin film rice seedlings (-20 ℃), is easily soluble in water and ethanol, has a concentration of 55% at most, is generally 35% -40%, is generally 37%, is called formalin, and is commonly called formalin.
At present, furniture, floor and the like in a home decoration environment often exceed the standard of formaldehyde, the traditional detection method is to sample the furniture and then place the furniture in a constant-temperature constant-humidity convection detection box for detection, the defect is that the furniture is damaged, at present, a method for covering the surface of the furniture to form an independent space inside the cover and detecting formaldehyde released gas in the space is presented, although the method can detect the formaldehyde in the air without damaging the furniture, the formaldehyde in the furniture is not released any more after the formaldehyde content in the air reaches a certain amount, the air is required to circulate, the detection is troublesome, the sealing property in the interior is difficult to guarantee, in addition, the content of the formaldehyde needs to be measured after the sampling of the formaldehyde is completed, and the collection of the formaldehyde is also inconvenient.
To solve the above problems. Therefore, a rapid nondestructive testing device and a nondestructive testing method for formaldehyde emission are provided.
Disclosure of Invention
The invention aims to provide a rapid nondestructive testing device and a nondestructive testing method for formaldehyde emission, which solve the problems that although the prior art adopts a method for covering the surface of furniture to form an independent space inside the cover and testing formaldehyde emission gas in the space, the method can test the formaldehyde emission gas without damaging the furniture, but the formaldehyde in the furniture is not released any more after the formaldehyde content in the air reaches a certain amount, the air is required to circulate, the testing is troublesome, the sealing property in the furniture is difficult to ensure, the content of the formaldehyde is required to be tested after the sampling of the formaldehyde is completed, and the collection of the formaldehyde is inconvenient.
In order to achieve the purpose, the invention provides the following technical scheme: the quick nondestructive testing device for the formaldehyde emission comprises a detection mechanism, a sealing mechanism and a blanking mechanism, wherein the sealing mechanism and the blanking mechanism are arranged on the detection mechanism;
the first shell is fixedly connected to the lower portion inside the first box body, the first shell is a round table-shaped component which is hollow inside and is through at the bottom, the driving assembly comprises a double-head motor fixedly connected to the inside of the first box body, a bevel gear is fixedly connected to the output end of one side of the double-head motor, the driving assembly further comprises an arc-shaped ring which is slidably connected to the inside of the first box body, and tooth grooves corresponding to the bevel gear are formed in the inner walls of the two sides of the arc-shaped ring;
the air pumping assembly comprises a barrel body which is embedded on the first shell, a piston is connected inside the barrel body in a sliding mode, a movable rod penetrating through the top of the barrel body is fixedly connected to the top of the piston, the top of the movable rod is fixedly connected with the bottom of the arc-shaped ring, an exhaust assembly and an air inlet assembly are arranged on two sides of the bottom of the barrel body respectively, the air inlet assembly comprises an air inlet barrel fixedly connected to the bottom of the barrel body, first air inlet holes and second air inlet holes are uniformly distributed in the top and the bottom of the air inlet barrel respectively, the first air inlet holes are communicated with the inside of the barrel body, a first guide rod is fixedly connected to the inner wall of the top of the air inlet barrel, a first sealing plate is connected to the first guide rod in a sliding mode, and a first spring is arranged between the first sealing plate and the inner wall of the top of the air inlet barrel;
the exhaust assembly comprises a first air outlet and a second air outlet which are fixedly connected to the exhaust funnel, the upper part and the lower part of the exhaust funnel are respectively and uniformly distributed, the first air outlet is communicated with the inner wall of the cylinder body, the inner wall of the bottom of the exhaust funnel is fixedly connected with a second guide rod, the second guide rod is connected with a second sealing plate in a sliding manner, and a second spring is arranged between the second sealing plate and the inner wall of the bottom of the exhaust funnel;
the collection subassembly includes fixed connection at the inside collection funnel of second box, and the inside splendid attire of collecting the funnel is equipped with the distilled water, and the top of collecting the funnel is equipped with the feed liquor pipe that runs through second box top, and the pump gas subassembly still includes the first communicating pipe of fixed connection in the exhaust stack bottom, and the other end of first communicating pipe is linked together with the inside below of collection funnel, and the pump gas subassembly still includes fixed connection at the second communicating pipe of collecting the funnel top, and the other end of second communicating pipe is linked together with the inside of first casing.
Further, sealing mechanism includes linkage subassembly, locking Assembly and sealing Assembly, and the linkage subassembly includes the first bevel gear of fixed connection at double-end motor opposite side output, and the linkage subassembly still includes the telescopic cylinder of fixed connection in the inside top of first box, telescopic cylinder's output fixedly connected with and the corresponding second bevel gear of first bevel gear, the bottom fixedly connected with transfer line of second bevel gear.
Further, the linkage subassembly is still including rotating the connecting rod of connection in first box inside, and the top fixedly connected with of connecting rod is spacing, and spacing axle sliding connection is in the inside below of transfer line.
Furthermore, the locking assembly comprises a fixed rod fixedly connected to the top of the barrel, the other end of the fixed rod is rotatably connected with the transmission rod, limit rods are uniformly distributed at the top of the fixed rod, the locking assembly further comprises limit holes uniformly distributed at the bottom of the second bevel gear, and the limit holes correspond to the limit rods.
Further, seal assembly includes the first sealing ring of fixed connection in first bottom half, and the inside of first sealing ring is equipped with the arc cavity, and the inside of arc cavity is equipped with the through-hole that runs through first sealing ring downwards, and the inside sliding connection of arc cavity has sealed slider, and one side fixedly connected with rack of sealed slider, the inside of arc cavity is equipped with the straight-teeth gear of being connected with the rack toothing, the bottom of connecting rod run through first sealing ring downwards and with straight-teeth gear fixed connection.
Furthermore, the sealing assembly further comprises a second sealing ring fixedly connected to the bottom of the first shell, and the bottoms of the first sealing ring and the second sealing ring are respectively provided with a first sealing ring and a second sealing ring in an embedded mode.
Further, unloading mechanism still includes unloading subassembly and ejection of compact subassembly, and the unloading subassembly includes fixed connection at the second casing of collecting the funnel bottom, and the top of second casing is equipped with the first liquid outlet that is linked together with the collection funnel, and the inside of second casing is equipped with the unloading cavity, and the inside activity of unloading cavity is provided with the jam plate, fixedly connected with fourth spring between the top of jam plate and the top inner wall of second casing.
Furthermore, a movable groove is formed in the second box body, an opening is formed in the bottom of the second box body, the discharging assembly comprises a movable plate which is connected to the inside of the movable groove in a sliding mode, and a third spring is fixedly connected between the top of the movable plate and the inner wall of the top of the movable groove.
Further, the discharging assembly further comprises a discharging pipe fixedly connected in the middle of the movable plate, the top of the discharging pipe penetrates through the bottom of the second shell and is fixedly connected with the plugging plate, and a discharging opening which penetrates through the inside and the outside is formed in the joint of the top of the discharging pipe and the discharging cavity.
The invention provides another technical scheme that: the nondestructive testing method for the formaldehyde emission rapid nondestructive testing device comprises the following steps:
s1: cleaning furniture or a floor to be detected, placing the whole device on the surface of the furniture or the floor to enable a first sealing ring and a second sealing ring to be in contact with the furniture and the floor, retracting through a telescopic cylinder to enable a second bevel gear to be meshed with a first bevel gear, enabling a connecting rod to rotate when a double-head motor rotates, enabling a straight gear to be meshed with a rack to enable a sealing sliding block to slide in an arc-shaped cavity, enabling the interior of the arc-shaped cavity to be under negative pressure, and extracting air among the first sealing ring, the second sealing ring and an object to be detected to enable the first sealing ring, the second sealing ring and the object to be detected to be kept sealed;
s2: when the double-end motor rotates, the piston is driven to reciprocate up and down in the cylinder through the driving assembly, when the piston moves upwards, air between the first shell and an object to be detected is extracted through the air inlet assembly, and when the piston moves downwards, the air is discharged into the collecting hopper through the air outlet assembly and the first communication pipe;
s3: because formaldehyde is easily dissolved in water, when the air admission collected the funnel inside, collect the inside distilled water of funnel and absorb it, the surplus air gets back to first casing through the second communicating pipe and waits to detect between the article, through the final absorption of accomplishing formaldehyde of extraction many times, through with the test tube from the opening part with fly leaf jack-up, liquid enters into the test tube through the inside and the unloading pipe of unloading cavity, the completion is collected, finally detect formaldehyde content through spectrophotometer, accomplish whole testing procedure so far.
Compared with the prior art, the invention has the beneficial effects that:
1. a quick nondestructive detection device and a nondestructive detection method for formaldehyde emission are disclosed, wherein a double-end motor is started, the double-end motor drives a bevel gear to rotate, teeth on the bevel gear are meshed with tooth grooves on two sides inside an arc-shaped ring back and forth, the arc-shaped ring is finally reciprocated up and down, a piston is driven to move up and down in a cylinder through a movable rod when the arc-shaped ring reciprocates up and down, negative pressure is generated in the lower part inside the cylinder when the piston moves up, a first sealing plate compresses a first spring and moves up, gas between a first shell and an object to be detected enters the lower part inside a collecting funnel through a second air inlet hole and a first air inlet hole, when the piston moves down, the pressure inside the piston is increased, the first sealing plate blocks the second air inlet hole, the second sealing plate compresses a second spring, the gas enters the lower part inside the collecting funnel through a first air outlet and a second air outlet through a first communication pipe, distilled water is contained in the collecting funnel, and formaldehyde in the gas is dissolved in distilled water, so that the formaldehyde can be quickly collected, and the damage to the object to be detected can be avoided, and the operation is simple.
2. Formaldehyde emission quick nondestructive test device and nondestructive test method, before collecting the detection, will wait to detect the article surface clean up, then place whole equipment on the article surface, start telescopic cylinder, when telescopic cylinder withdraws, second bevel gear is connected with first bevel gear meshing, when double-end motor rotated this moment, through second bevel gear, the transfer line, spacing axle and connecting rod drive the straight-gear and rotate, meshing rack when straight-gear rotates, make the sealing slider move in the inside of arc cavity, the arc cavity is close to one side of through-hole and sealing slider formation negative pressure this moment, extract the air between the first sealing washer in object surface and the second sealing washer, make inside and the object surface of first casing be in encapsulated situation, telescopic cylinder stretches out afterwards, make the spacing hole gomphosis of second bevel gear bottom in the limiting rod, prevent that straight-gear from rotating and destroying encapsulated situation, the leakproofness has been realized guaranteeing under collecting the detection state, prevent to leak gas in the in-collecting the in-process of detection and cause the error of experimental data.
3. Quick nondestructive test device of formaldehyde emission volume and nondestructive test method, after collecting the completion to formaldehyde, the distilled water formaldehyde content rises in the collection funnel, make collection funnel inside and external intercommunication through the feed liquor pipe, then use the test tube upwards to jack up the fly leaf through the opening, the unloading pipe makes the jam plate rebound under the effect of fly leaf, then the inside distilled water of collection funnel passes first liquid outlet and enters into the unloading cavity, finally enter into the test tube from feed opening and unloading pipe, the distilled water of dissolving into formaldehyde has formed formaldehyde solution, detect its distilled water formaldehyde content through spectrophotometry can, realized convenient collection to formaldehyde solution.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a detection mechanism, a sealing mechanism and a blanking mechanism of the present invention;
FIG. 3 is an exploded view of the detection mechanism of the present invention;
FIG. 4 is an exploded view of the detection mechanism of the present invention;
FIG. 5 is a schematic view of the drive assembly and the pumping assembly of the present invention;
FIG. 6 is a schematic view of the intake and exhaust assemblies of the present invention;
FIG. 7 is a cross-sectional view of the intake and exhaust assemblies of the present invention;
FIG. 8 is a schematic view of the sealing mechanism of the present invention;
FIG. 9 is an exploded view of the linkage assembly structure of the present invention;
FIG. 10 is an exploded view of the seal assembly construction of the present invention;
FIG. 11 is a cross-sectional view of a first seal ring construction of the present invention;
FIG. 12 is a schematic structural view of a blanking mechanism according to the present invention;
FIG. 13 is an exploded view of the blanking mechanism of the present invention;
fig. 14 is a structural sectional view of the blanking mechanism of the present invention.
In the figure: 1. a detection mechanism; 11. a first case; 12. a drive assembly; 121. a double-headed motor; 122. a bevel gear; 123. an arc-shaped ring; 124. a tooth socket; 13. a pumping assembly; 131. a cylinder body; 132. a movable rod; 133. a piston; 134. an air intake assembly; 1341. an air inlet cylinder; 1342. a first air intake hole; 1343. a second air intake hole; 1344. a first guide bar; 1345. a first sealing plate; 1346. a first spring; 135. an exhaust assembly; 1351. an exhaust funnel; 1352. a first air outlet; 1353. a second air outlet; 1354. a second guide bar; 1355. a second sealing plate; 1356. a second spring; 136. a first communication pipe; 137. a second communicating pipe; 14. a first housing; 15. a collection assembly; 151. a collection funnel; 152. a liquid inlet pipe; 2. a sealing mechanism; 21. a linkage assembly; 211. a first bevel gear; 212. a telescopic cylinder; 213. a second bevel gear; 214. a transmission rod; 215. a limiting shaft; 216. a connecting rod; 22. a locking assembly; 221. fixing the rod; 222. a limiting rod; 223. a limiting hole; 23. a seal assembly; 231. a first seal ring; 2311. an arc-shaped cavity; 2312. a through hole; 2313. sealing the sliding block; 2314. a rack; 2315. a spur gear; 232. a first seal ring; 233. a second seal ring; 234. a second seal ring; 3. a blanking mechanism; 31. a second case; 311. a movable groove; 312. an opening; 32. a blanking assembly; 321. a second housing; 322. a blanking cavity; 323. a blocking plate; 324. a first liquid outlet; 33. a discharge assembly; 331. a movable plate; 332. a third spring; 333. a feeding pipe; 334. a feeding port; 325. and a fourth spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the technical problems that at present, after the content of formaldehyde in the air reaches a certain amount, the formaldehyde in the furniture is not released any more, the air is required to be circulated, and the detection is relatively troublesome, as shown in fig. 1 to 7, the following preferable technical scheme is provided:
the device for rapidly and nondestructively detecting the formaldehyde emission comprises a detection mechanism 1, and further comprises a sealing mechanism 2 and an unloading mechanism 3 which are arranged on the detection mechanism 1, wherein the detection mechanism 1 comprises a first box body 11, a driving component 12, a pumping component 13 and a first shell 14, the unloading mechanism 3 comprises a second box body 31 which is fixedly connected to the outer wall of the first box body 11, the detection mechanism 1 further comprises a collecting component 15 which is arranged in the second box body 31, the first shell 14 is fixedly connected to the lower portion of the inner portion of the first box body 11, the first shell 14 is a round table-shaped component which is through from the bottom of the inner hollow portion, the driving component 12 comprises a double-head motor 121 which is fixedly connected to the inner portion of the first box body 11, a bevel gear 122 is fixedly connected to an output end of one side of the double-head motor 121, the driving component 12 further comprises an arc-shaped ring 123 which is slidably connected to the inner portion of the first box body 11, and tooth grooves 124 which correspond to the bevel gear 122 are formed in the inner walls of the two sides of the arc-shaped ring 123.
The pump air assembly 13 includes a cylinder 131 embedded on the first housing 14, a piston 133 is slidably connected inside the cylinder 131, a movable rod 132 is fixedly connected to the top of the piston 133 and penetrates through the top of the cylinder 131, the top of the movable rod 132 is fixedly connected to the bottom of the arc-shaped ring 123, an exhaust assembly 135 and an air intake assembly 134 are respectively arranged on two sides of the bottom of the cylinder 131, the air intake assembly 134 includes an air intake tube 1341 fixedly connected to the bottom of the cylinder 131, a first air intake hole 1342 and a second air intake hole 1343 are respectively and uniformly distributed on the top and the bottom of the air intake tube 1341, the first air intake hole 1342 is communicated with the inside of the cylinder 131, a first guide rod 1344 is fixedly connected to the inner wall of the top of the air intake tube 1341, a first sealing plate 1345 is slidably connected to the first guide rod 1344, and a first spring 1346 is arranged between the first sealing plate 1345 and the inner wall of the top of the air intake tube 1341.
The exhaust assembly 135 comprises a fixed connection exhaust tube 1351, a first air outlet 1352 and a second air outlet 1353 are respectively and uniformly distributed on the upper portion and the lower portion of the exhaust tube 1351, the first air outlet 1352 is communicated with the inner wall of the tube body 131, a second guide rod 1354 is fixedly connected to the inner wall of the bottom of the exhaust tube 1351, a second sealing plate 1355 is slidably connected to the second guide rod 1354, a second spring 1356 is arranged between the second sealing plate 1355 and the inner wall of the bottom of the exhaust tube 1351, the collecting assembly 15 comprises a collecting funnel 151 fixedly connected to the inside of a second box 31, distilled water is contained in the collecting funnel 151, a liquid inlet pipe 152 penetrating through the top of the second box 31 is arranged at the top of the collecting funnel 151, the pump assembly 13 further comprises a first communicating pipe 136 fixedly connected to the bottom of the exhaust tube 1351, the other end of the first communicating pipe 136 is communicated with the lower portion of the inside of the collecting funnel 151, the pump assembly 13 further comprises a second communicating pipe 137 fixedly connected to the top of the collecting funnel 151, and the other end of the second communicating pipe 137 is communicated with the inside of the first housing 14.
Specifically, by starting the double-headed motor 121, the double-headed motor 121 drives the bevel gear 122 to rotate, so that teeth on the bevel gear 122 are engaged with tooth grooves 124 on two sides inside the arc-shaped ring 123 back and forth, and finally the arc-shaped ring 123 reciprocates up and down, the piston 133 is driven by the movable rod 132 to move up and down inside the barrel 131 when the arc-shaped ring 123 reciprocates up and down, when the piston 133 moves up, negative pressure is applied to the lower inside of the barrel 131, at this time, the first sealing plate 1345 compresses the first spring 1346 and moves up, gas between the first housing 14 and an object to be detected enters the inside of the barrel 131 through the second gas inlet 1343 and the first gas inlet 1342, when the piston 133 moves down, the pressure inside the piston 133 is increased, the first sealing plate 1345 blocks the second gas inlet 1343, the second sealing plate 1355 compresses the second spring 1356, and the gas enters the lower inside of the collecting funnel 151 through the first gas outlet 1352 and the second gas outlet 1353 and the first communicating pipe 136, and the formaldehyde in the collecting funnel 151 is dissolved in distilled water because the distilled water is contained in the collecting funnel 151.
In order to solve the technical problem that the internal tightness is difficult to ensure in the detection process, as shown in fig. 8-11, the following preferred technical solutions are provided:
the sealing mechanism 2 comprises a linkage component 21, a locking component 22 and a sealing component 23, the linkage component 21 comprises a first bevel gear 211 fixedly connected to the output end of the other side of the double-head motor 121, the linkage component 21 further comprises a telescopic cylinder 212 fixedly connected to the upper portion inside the first box 11, the output end of the telescopic cylinder 212 is fixedly connected with a second bevel gear 213 corresponding to the first bevel gear 211, the bottom of the second bevel gear 213 is fixedly connected with a transmission rod 214, the linkage component 21 further comprises a connecting rod 216 rotatably connected to the inside of the first box 11, the top of the connecting rod 216 is fixedly connected with a limiting shaft 215, the limiting shaft 215 is slidably connected to the lower portion inside the transmission rod 214, the locking component 22 comprises a fixing rod 221 fixedly connected to the top of the barrel 131, the other end of the fixing rod 221 is rotatably connected with the transmission rod 214, limiting rods 222 are uniformly distributed on the top of the fixing rod 221, the locking component 22 further comprises limiting holes 223 uniformly distributed at the bottom of the second bevel gear 213, and the limiting holes 223 correspond to the limiting rods 222.
The sealing assembly 23 comprises a first sealing ring 231 fixedly connected to the bottom of the first box 11, an arc-shaped cavity 2311 is arranged inside the first sealing ring 231, a through hole 2312 penetrating the first sealing ring 231 downwards is formed inside the arc-shaped cavity 2311, a sealing slide block 2313 is connected inside the arc-shaped cavity 2311 in a sliding mode, a rack 2314 is fixedly connected to one side of the sealing slide block 2313, a straight gear 2315 meshed with the rack 2314 and connected is arranged inside the arc-shaped cavity 2311, the bottom of the connecting rod 216 penetrates the first sealing ring 231 downwards and is fixedly connected with the straight gear 2315, the sealing assembly 23 further comprises a second sealing ring 233 fixedly connected to the bottom of the first shell 14, and the bottoms of the first sealing ring 231 and the second sealing ring 234 are respectively provided with a first sealing ring 232 and a second sealing ring 234 in an embedding mode.
Specifically, before collection and detection are carried out, the surface of an object to be detected is cleaned, the whole device is placed on the surface of the object, the telescopic cylinder 212 is started, when the telescopic cylinder 212 retracts, the second bevel gear 213 is meshed with the first bevel gear 211, at the moment, the double-head motor 121 rotates, the second bevel gear 213, the transmission rod 214, the limiting shaft 215 and the connecting rod 216 drive the straight gear 2315 to rotate, the straight gear 2315 rotates and is meshed with the rack 2314, the sealing sliding block 2313 moves inside the arc-shaped cavity 2311, at the moment, negative pressure is formed between one side, close to the through hole 2312, of the arc-shaped cavity 2311 and the sealing sliding block 2313, air between the first sealing ring 232 and the second sealing ring 234 on the surface of the object is extracted, the inside of the first shell 14 and the surface of the object are in a sealing state, then the telescopic cylinder 212 extends out, and the limiting hole 223 at the bottom of the second bevel gear 213 is embedded into the limiting rod 222, and the sealing state is prevented from being damaged by the rotation of the straight gear 2315.
In order to solve the technical problems that the content of formaldehyde needs to be measured after the sampling is completed and the collection of the formaldehyde is inconvenient, as shown in fig. 12-14, the following preferred technical scheme is provided:
the discharging mechanism 3 further comprises a discharging component 32 and a discharging component 33, the discharging component 32 comprises a second shell 321 fixedly connected to the bottom of the collecting funnel 151, a first liquid outlet 324 communicated with the collecting funnel 151 is formed in the top of the second shell 321, a discharging cavity 322 is formed in the second shell 321, a blocking plate 323 is movably arranged in the discharging cavity 322, a fourth spring 325 is fixedly connected between the top of the blocking plate 323 and the inner wall of the top of the second shell 321, a movable groove 311 is formed in the second box 31, an opening 312 is formed in the bottom of the second box 31, the discharging component 33 comprises a movable plate 331 slidably connected to the inside of the movable groove 311, a third spring 332 is fixedly connected between the top of the movable plate 331 and the inner wall of the top of the movable groove 311, the discharging component 33 further comprises a discharging pipe 333 fixedly connected to the middle of the movable plate 331, the top of the discharging pipe 333 penetrates through the bottom of the second shell 321 and is fixedly connected to the blocking plate 323, and a through discharging opening 334 is formed at the connection between the top of the discharging pipe 333 and the discharging cavity 322.
Specifically, after the completion of collecting formaldehyde, the interior distilled water formaldehyde content of collection funnel 151 rises, make through feed liquor pipe 152 collect funnel 151 inside and external intercommunication, then use the test tube upwards through opening 312 with fly leaf 331 jack-up, unloading pipe 333 makes jam plate 323 rebound under the effect of fly leaf 331, then collect the inside distilled water of funnel 151 and pass first liquid outlet 324 and enter into unloading cavity 322 in, finally enter into the test tube from feed opening 334 and unloading pipe 333, the distilled water that dissolves into formaldehyde has formed formaldehyde solution, through spectrophotometry to its distilled water formaldehyde content detect can.
To further better explain the above examples, the present invention also provides a nondestructive testing method of a rapid nondestructive testing apparatus for formaldehyde emission amount, comprising the steps of:
the method comprises the following steps: cleaning the furniture or the floor to be detected, placing the whole device on the surface of the furniture or the floor, enabling the first sealing ring 232 and the second sealing ring 234 to be in contact with the furniture and the floor, retracting through the telescopic cylinder 212 to enable the second bevel gear 213 to be meshed with the first bevel gear 211, then enabling the connecting rod 216 to rotate when the double-head motor 121 rotates, enabling the straight gear 2315 to be meshed with the rack 2314 to enable the sealing sliding block 2313 to slide in the arc-shaped cavity 2311, enabling the inside of the arc-shaped cavity 2311 to be under negative pressure, and extracting air among the first sealing ring 232, the second sealing ring 234 and the object to be detected to keep sealed;
step two: when the double-head motor 121 rotates, the piston 133 reciprocates up and down in the cylinder 131 through the driving assembly 12, when the piston 133 moves upwards, air between the first housing 14 and the object to be detected is extracted through the air inlet assembly 134, and when the piston 133 moves downwards, air is discharged into the collecting hopper 151 through the air outlet assembly 135 and the first communication pipe 136;
step three: because formaldehyde is easily dissolved in water, when air enters the interior of the collecting funnel 151, the distilled water in the interior of the collecting funnel 151 absorbs the distilled water, the residual air returns to the space between the first shell 14 and the object to be detected through the second communicating pipe 137, the absorption of formaldehyde is finally completed through multiple times of extraction, the movable plate 331 is upwards jacked up from the opening 312 by the test tube, liquid enters the test tube through the interior of the blanking cavity 322 and the blanking pipe 333, the collection is completed, the formaldehyde content is finally detected through a spectrophotometer, and all detection steps are completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. Quick nondestructive test device of formaldehyde emission volume, including detection mechanism (1), still including setting up sealing mechanism (2) and unloading mechanism (3) on detection mechanism (1), its characterized in that: the detection mechanism (1) comprises a first box body (11), a driving assembly (12), an air pumping assembly (13) and a first shell (14), the blanking mechanism (3) comprises a second box body (31) fixedly connected to the outer wall of the first box body (11), and the detection mechanism (1) further comprises a collecting assembly (15) arranged in the second box body (31);
the first shell (14) is fixedly connected to the lower portion inside the first box body (11), the first shell (14) is a round table-shaped component with a hollow inner portion and a through bottom, the driving assembly (12) comprises a double-end motor (121) fixedly connected to the inside of the first box body (11), a bevel gear (122) is fixedly connected to the output end of one side of the double-end motor (121), the driving assembly (12) further comprises an arc-shaped ring (123) slidably connected to the inside of the first box body (11), and tooth grooves (124) corresponding to the bevel gear (122) are formed in the inner walls of the two sides of the arc-shaped ring (123);
the pump air assembly (13) comprises a barrel body (131) which is embedded on the first shell (14), a piston (133) is connected to the inside of the barrel body (131) in a sliding manner, a movable rod (132) which penetrates through the top of the barrel body (131) is fixedly connected to the top of the piston (133), the top of the movable rod (132) is fixedly connected with the bottom of the arc-shaped ring (123), an exhaust assembly (135) and an air inlet assembly (134) are respectively arranged on two sides of the bottom of the barrel body (131), the air inlet assembly (134) comprises an air inlet barrel (1341) which is fixedly connected to the bottom of the barrel body (131), a first air inlet hole (1342) and a second air inlet hole (1343) are respectively and uniformly distributed at the top and the bottom of the air inlet barrel (1341), the first air inlet hole (1342) is communicated with the inside of the barrel body (131), a first guide rod (1344) is fixedly connected to the inner wall of the top of the air inlet barrel (1341), a first seal plate (1345) is connected to the first seal plate (1344) in a sliding manner, and a first seal plate (1346) is arranged between the first seal plate (1345) and the inner wall of the top of the air inlet barrel (1341);
the exhaust assembly (135) comprises an exhaust tube (1351) fixedly connected, a first air outlet (1352) and a second air outlet (1353) are uniformly distributed on the upper portion and the lower portion of the exhaust tube (1351) respectively, the first air outlet (1352) is communicated with the inner wall of the tube body (131), a second guide rod (1354) is fixedly connected to the inner wall of the bottom of the exhaust tube (1351), a second sealing plate (1355) is slidably connected to the second guide rod (1354), and a second spring (1356) is arranged between the second sealing plate (1355) and the inner wall of the bottom of the exhaust tube (1351);
collect subassembly (15) including fixed connection at the inside collection funnel (151) of second box (31), the inside splendid attire of collection funnel (151) has distilled water, the top of collecting funnel (151) is equipped with feed liquor pipe (152) that run through second box (31) top, pump gas subassembly (13) still includes first communicating pipe (136) of fixed connection in aiutage (1351) bottom, the other end of first communicating pipe (136) is linked together with collection funnel (151) inside below, pump gas subassembly (13) still includes second communicating pipe (137) of fixed connection at collection funnel (151) top, and the other end of second communicating pipe (137) is linked together with the inside of first casing (14).
2. The apparatus for rapid nondestructive examination of a formaldehyde emission amount according to claim 1, characterized in that: the sealing mechanism (2) comprises a linkage assembly (21), a locking assembly (22) and a sealing assembly (23), the linkage assembly (21) comprises a first bevel gear (211) fixedly connected to the output end of the other side of the double-head motor (121), the linkage assembly (21) further comprises a telescopic cylinder (212) fixedly connected to the upper portion inside the first box body (11), the output end of the telescopic cylinder (212) is fixedly connected with a second bevel gear (213) corresponding to the first bevel gear (211), and the bottom of the second bevel gear (213) is fixedly connected with a transmission rod (214);
the linkage assembly (21) further comprises a connecting rod (216) rotatably connected inside the first box body (11), the top of the connecting rod (216) is fixedly connected with a limiting shaft (215), and the limiting shaft (215) is slidably connected below the inside of the transmission rod (214).
3. The apparatus for rapid nondestructive examination of formaldehyde emission as set forth in claim 2, characterized in that: the locking assembly (22) comprises a fixing rod (221) fixedly connected to the top of the barrel body (131), the other end of the fixing rod (221) is rotatably connected with the transmission rod (214), limit rods (222) are uniformly distributed at the top of the fixing rod (221), the locking assembly (22) further comprises limit holes (223) uniformly distributed at the bottom of the second bevel gear (213), and the limit holes (223) correspond to the limit rods (222).
4. The apparatus for rapid nondestructive examination of formaldehyde emission as set forth in claim 3, characterized in that: sealing assembly (23) are including first sealing ring (231) of fixed connection in first box (11) bottom, the inside of first sealing ring (231) is equipped with arc cavity (2311), the inside of arc cavity (2311) is equipped with through-hole (2312) that run through first sealing ring (231) downwards, the inside sliding connection of arc cavity (2311) has sealed slider (2313), one side fixedly connected with rack (2314) of sealed slider (2313), the inside of arc cavity (2311) is equipped with spur gear (2315) of being connected with rack (2314) meshing, the bottom of connecting rod (216) runs through first sealing ring (231) downwards and with spur gear (2315) fixed connection.
5. The apparatus for rapid nondestructive examination of a formaldehyde emission amount according to claim 4, characterized in that: the sealing assembly (23) further comprises a second sealing ring (233) fixedly connected to the bottom of the first shell (14), and a first sealing ring (232) and a second sealing ring (234) are respectively embedded and arranged at the bottoms of the first sealing ring (231) and the second sealing ring (233).
6. The apparatus for rapid nondestructive examination of formaldehyde emission as set forth in claim 5, characterized in that: unloading mechanism (3) still include unloading subassembly (32) and ejection of compact subassembly (33), unloading subassembly (32) are including second casing (321) of fixed connection in collection funnel (151) bottom, the top of second casing (321) is equipped with first liquid outlet (324) that are linked together with collection funnel (151), the inside of second casing (321) is equipped with unloading cavity (322), the inside activity of unloading cavity (322) is provided with jam plate (323), fixedly connected with fourth spring (325) between the top of jam plate (323) and the top inner wall of second casing (321).
7. The apparatus for rapid nondestructive examination of formaldehyde emission as set forth in claim 6, characterized in that: a movable groove (311) is formed in the second box body (31), an opening (312) is formed in the bottom of the second box body (31), the discharging component (33) comprises a movable plate (331) which is connected to the inside of the movable groove (311) in a sliding mode, and a third spring (332) is fixedly connected between the top of the movable plate (331) and the inner wall of the top of the movable groove (311).
8. The apparatus for rapid nondestructive examination of formaldehyde emission as set forth in claim 7, characterized in that: the discharging component (33) further comprises a discharging pipe (333) fixedly connected to the middle of the movable plate (331), the top of the discharging pipe (333) penetrates through the bottom of the second shell (321) and is fixedly connected with the blocking plate (323), and a discharging opening (334) which penetrates through the inside and the outside is formed in the connection position of the top of the discharging pipe (333) and the discharging cavity (322).
9. The nondestructive testing method for implementing the formaldehyde emission amount rapid nondestructive testing device according to claim 8, characterized by comprising the steps of:
s1: cleaning furniture or a floor to be detected, placing the whole device on the surface of the furniture or the floor, enabling a first sealing ring (232) and a second sealing ring (234) to be in contact with the furniture and the bottom plate, enabling a second bevel gear (213) to be meshed with a first bevel gear (211) through retraction of a telescopic cylinder (212), enabling a connecting rod (216) to rotate when a double-head motor (121) rotates, enabling a straight gear (2315) to be meshed with a rack (2314) to enable a sealing sliding block (2313) to slide in an arc-shaped cavity (2311), enabling negative pressure in the arc-shaped cavity (2311) to be achieved at the moment, extracting air among the first sealing ring (232), the second sealing ring (234) and an object to be detected, and keeping the air sealed;
s2: when the double-end motor (121) rotates, the piston (133) reciprocates up and down in the cylinder (131) through the driving assembly (12), when the piston (133) moves upwards, air between the first shell (14) and an object to be detected is extracted through the air inlet assembly (134), and when the piston (133) moves downwards, the air is discharged into the collecting hopper (151) through the air outlet assembly (135) and the first communication pipe (136);
s3: because formaldehyde is easily dissolved in water, when the air gets into inside collection funnel (151), the inside distilled water of collection funnel (151) absorbs it, the surplus air returns first casing (14) and waits to detect between the article through second communicating pipe (137), absorption to formaldehyde is finally accomplished through the extraction of a lot of, through with the test tube from opening (312) department with fly leaf (331) jack-up, liquid passes through the inside of unloading cavity (322) and the unloading pipe (333) enters into the test tube in, accomplish the collection, finally detect formaldehyde content through the spectrophotometer, accomplish whole detection procedure so far.
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| CN202210597964.3A CN114674773B (en) | 2022-05-30 | 2022-05-30 | Rapid nondestructive testing device and nondestructive testing method for formaldehyde emission |
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| CN202210597964.3A CN114674773B (en) | 2022-05-30 | 2022-05-30 | Rapid nondestructive testing device and nondestructive testing method for formaldehyde emission |
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| GB1309549A (en) * | 1969-06-13 | 1973-03-14 | Atomic Energy Authority Uk | Carbon content analysis |
| CN109738428B (en) * | 2019-02-28 | 2021-08-10 | 杭州艾克瑞尔检测科技有限公司 | Chromogenic titration detection device and detection method for formaldehyde content in air |
| CN111122821A (en) * | 2020-01-13 | 2020-05-08 | 台州椒江彩格电子科技有限公司 | Underground pipeline methane gas monitoring and detecting device |
| CN211800047U (en) * | 2020-03-11 | 2020-10-30 | 甘肃农业职业技术学院 | Formaldehyde absorption experiment evaluation device |
| CN113640282A (en) * | 2021-08-23 | 2021-11-12 | 安徽省汉博科技有限公司 | Device and method for testing harmful substances in furniture board |
| CN114014440B (en) * | 2021-10-21 | 2022-12-06 | 上海森态泽源环保有限公司 | Urban domestic garbage leachate treatment system |
| CN114487186B (en) * | 2022-01-24 | 2023-07-18 | 浙江意诚检测有限公司 | Formaldehyde detection equipment and detection method for interior decoration plate |
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