CN216847103U - Dimethyl sulfate air sampling detection device - Google Patents
Dimethyl sulfate air sampling detection device Download PDFInfo
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- CN216847103U CN216847103U CN202220213936.2U CN202220213936U CN216847103U CN 216847103 U CN216847103 U CN 216847103U CN 202220213936 U CN202220213936 U CN 202220213936U CN 216847103 U CN216847103 U CN 216847103U
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- detecting device
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- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000005070 sampling Methods 0.000 title claims abstract description 44
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 33
- 238000005192 partition Methods 0.000 claims description 25
- 230000005484 gravity Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000000741 silica gel Substances 0.000 description 7
- 229910002027 silica gel Inorganic materials 0.000 description 7
- 238000001212 derivatisation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- WHMDPDGBKYUEMW-UHFFFAOYSA-N pyridine-2-thiol Chemical compound SC1=CC=CC=N1 WHMDPDGBKYUEMW-UHFFFAOYSA-N 0.000 description 4
- 239000000945 filler Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a device that dimethyl sulfate air sampling detected includes: the device comprises a shell, an air pump, a collecting device, a filtering device and a detecting device; the filter device is hermetically connected with one end of the collecting device, the other end of the collecting device is hermetically connected with the detection device through a guide pipe, and the detection device is hermetically connected with the air pump through the guide pipe; the casing is wrapped by the air pump, the collecting device, the filtering device and the detecting device; the collecting device comprises a collecting piece, a bearing base, a pressing assembly and a feeding assembly; one side of the bearing base is tightly connected with one end of the pressing component, the bearing base and the pressing component form at least two first inner cavities, each inner cavity is wrapped by a collecting piece, and the feeding component is located above one side edge of the bearing base.
Description
Technical Field
The utility model relates to a dimethyl sulfate air sampling check out test set technical field especially relates to a device that dimethyl sulfate air sampling detected.
Background
The occupational contact limit (time weighted average allowable concentration) of dimethyl sulfate formulated in China is 0.5mg/m3, a matched standard determination method adopts a silicone tube for collection, at present, the dimethyl sulfate in the air is collected by the silicone tube, but the simple desorption and derivatization step of the dimethyl sulfate collected by the silicone tube is complicated, the derivatization and extraction is time-consuming and the derivatization efficiency is low, and the relevant technical requirements of the occupational health standard detection method cannot be met; in addition, the pure collection by the silicone tube can be generally collected for at most 4h, otherwise, the penetration phenomenon is easy to occur; in the existing air sampling pipe for dimethyl sulfate, two sections of sample pipes are adopted to collect and detect the dimethyl sulfate backwards, however, the sampling pipe cannot ensure that the joint of the two sections of sample pipes has good sealing performance, and the two sections of sampling pipes have certain influence on experimental data when the two sections of sample pipes are separated after the dimethyl sulfate is collected; and the collection tube of the existing equipment needs to be installed again manually after the collection tube is used once, so that the use is not convenient enough.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a dimethyl sulfate air sampling detects device to solve above-mentioned more definitely the background art problem.
The utility model provides a dimethyl sulfate air sampling detection's device, include: the device comprises a shell, an air pump, a collecting device, a filtering device and a detecting device;
the filter device is hermetically connected with one end of the collecting device, the other end of the collecting device is hermetically connected with the detection device through a guide pipe, and the detection device is hermetically connected with the air pump through the guide pipe; the casing is wrapped by the air pump, the collecting device, the filtering device and the detecting device;
the collecting device comprises a collecting piece, a bearing base, a pressing assembly and a feeding assembly; one side of the bearing base is tightly connected with one end of the pressing component, the bearing base and the pressing component form at least two first inner cavities, each inner cavity is wrapped with a collecting piece, and the feeding component is located above one side edge of the bearing base.
Furthermore, the dimethyl sulfate air sampling detection device is characterized in that the carrying base is fixedly arranged on the machine shell, a plurality of carrying positions are arranged above the carrying base, a first concave channel is arranged between the carrying positions to communicate the adjacent carrying positions, and a groove is formed in the edge of the upper surface of the carrying base.
Further, the dimethyl sulfate air sampling and detecting device is characterized in that the collecting piece comprises a front collecting cover and a rear collecting cover; collect cover one end after the airtight connection can be dismantled to preceding collection cover one end, preceding collection cover and back collection cover form the second inner chamber, the one end that preceding collection cover kept away from the back collection cover is equipped with the first opening that extends earlier on, preceding collection cover other end edge terminal surface is the form terminal surface of forking, the back is collected the cover edge block and is in the preceding forking terminal surface of collecting the cover, the one end that preceding collection cover was kept away from to the back is equipped with the second opening that extends.
Furthermore, the dimethyl sulfate air sampling and detecting device comprises a compressing assembly, a detecting assembly and a detecting device, wherein the compressing assembly comprises an air cylinder, a compressing piece, an elastic piece, a sealing piece and an air pressure detecting piece; the closing member is the shell form, the equal fixed connection cylinder in the relative both sides of closing member upper end upper surface, closing member side airtight connection atmospheric pressure detects the piece, fixed connection elastic component one end above the closing member is inside, the other one end fixed connection of elastic component compresses tightly piece one end.
Furthermore, the dimethyl sulfate air sampling detection device is characterized in that at least two elastic mounting grooves are formed in one surface of the pressing piece, at least two pressing grooves are formed in the opposite surfaces of the pressing piece and the pressing piece, which are provided with the elastic mounting grooves, a second pressing channel is arranged between each pressing groove and the corresponding pressing groove to communicate the two adjacent pressing grooves, and a raised sealing block is arranged at the edge of each pressing groove.
Further, the dimethyl sulfate air sampling and detecting device comprises a feeding assembly, a first motor, a light sensing assembly and a gravity sensing assembly, wherein the feeding assembly comprises a feeding guide piece, a partition plate, the first motor, the light sensing assembly and the gravity sensing assembly; one end of the feeding guide piece is movably connected with one end of the partition board, the partition board is movably connected with the first motor through a crawler, one end, connected with the partition board, of the feeding guide piece is fixedly connected with the gravity sensing piece, and the light sensing piece is fixedly connected to one end, close to the partition board, of the feeding guide piece.
Furthermore, in the dimethyl sulfate air sampling and detecting device, the feeding guide piece is in an inclined guide rail shape, a concave groove is arranged in the middle of the upper surface of the feeding guide piece, and two sides of one end of the feeding guide piece are provided with opposite mounting small holes.
Furthermore, the device for dimethyl sulfate air sampling detection further comprises a control device, and the control device is electrically connected with each element.
The utility model has the advantages that:
1. the joint that uses the collection piece, accepts the base and compress tightly the subassembly and guarantee that the collection piece has fine leakproofness, and each collection piece all is the independent disjunction type, solves original pipeline and still need the loaded down with trivial details work of pipeline separation and the influence to experimental data when the pipeline separation after collecting.
2. The collecting device is used to automatically replace the collecting piece, so that the trouble that an operator needs to manually install the sampling pipe after collecting the sample plate once is solved;
3. the collecting device is sealed under multiple sealing conditions, so that the joint of the collecting part has good sealing property.
Drawings
FIG. 1 is a structural diagram of the device for sampling and detecting dimethyl sulfate air according to the present invention;
fig. 2 is a schematic structural view of the dimethyl sulfate air sampling and detecting device of the present invention;
fig. 3 is a structural diagram of an embodiment of the device for sampling and detecting dimethyl sulfate air according to the present invention;
fig. 4 is a structural diagram of an embodiment of the device for sampling and detecting dimethyl sulfate air according to the present invention;
fig. 5 is a structural diagram of an embodiment of the device for sampling and detecting dimethyl sulfate air according to the present invention;
fig. 6 is a structural diagram of an embodiment of the device for sampling and detecting dimethyl sulfate air according to the present invention;
fig. 7 is a structural diagram of an embodiment of the device for sampling and detecting dimethyl sulfate air according to the present invention;
fig. 8 is a sectional view of the structure of the pressing assembly of the device for sampling and detecting dimethyl sulfate air according to the present invention;
fig. 9 is a structural diagram of an embodiment of the device for sampling and detecting dimethyl sulfate air according to the present invention;
fig. 10 is a structural diagram of an embodiment of the device for sampling and detecting dimethyl sulfate air according to the present invention;
in the figure: the machine shell 1, the collecting device 2, the filtering device 3, the detecting device 4, the control device 5, the collecting member 21, the receiving base 22, the pressing assembly 23, the feeding assembly 24, the front collecting cover 211, the rear collecting cover 212, the receiving position 221, the first recessed channel 222, the second inner cavity 213, the U-shaped end face 2111, the first opening 2112, the second opening 2121, the closing member 231, the pressing member 232, the elastic member 233, the air cylinder 234, the pressing groove 2311, the second pressing channel 2312, the closing block 2313, the elastic mounting groove 2314, the feeding guide member 241, the partition 242 and the first motor 243.
Detailed Description
In order to more clearly and completely explain the technical scheme of the present invention, the present invention is further explained with reference to the attached drawings.
Referring to fig. 1-10, the present invention provides a dimethyl sulfate air sampling and detecting device, which includes: the device comprises a machine shell 1, an air pump, a collecting device 2, a filtering device 3 and a detecting device 4;
the filtering device 3 is hermetically connected with one end of the collecting device 2, the other end of the collecting device 2 is hermetically connected with the detecting device 4 through a guide pipe, and the detecting device 4 is hermetically connected with the air pump through a guide pipe; the casing 1 is wrapped by the air pump, the collecting device 2, the filtering device 3 and the detecting device 4; the dimethyl sulfate air sampling detection device further comprises a control device 5, wherein the control device 5 is electrically connected with each element;
the collecting device 2 comprises a collecting member 21, a receiving base 22, a pressing assembly 23 and a feeding assembly 24; one side of the receiving base 22 is tightly connected with one end of the pressing component 23, the receiving base 22 and the pressing component 23 form at least two first inner cavities, each inner cavity is wrapped by a collecting piece 21, and the feeding component 24 is positioned above one side edge of the receiving base 22;
the receiving base 22 is fixedly installed on the machine shell 1, a plurality of receiving positions 221 are arranged above the receiving base 22, a first concave channel 222 is arranged between each receiving position 221 and each receiving position 221 to communicate adjacent receiving positions 221, and a groove 223 is arranged on the edge of the upper surface of the receiving base 22; the collecting member 21 includes a front collecting cover 211 and a rear collecting cover 212; one end of the front collection cover 211 is detachably and hermetically connected with one end of the rear collection cover 212, the front collection cover 211 and the rear collection cover 212 form a second inner cavity 213, one end of the front collection cover 211, which is far away from the rear collection cover 212, is provided with a small first opening 2112 which extends outwards, the edge end face of the other end of the front collection cover 211 is a forked end face, the edge of the rear collection cover 212 is clamped in the forked end face of the front collection cover 211, and one end of the rear collection cover 212, which is far away from the front collection cover 211, is provided with a small second opening 2121 which extends outwards; the pressing assembly 23 comprises an air cylinder 234, a pressing piece 232, an elastic piece 233, a closing piece 231 and an air pressure detecting piece; the sealing element 231 is in a shell shape, two opposite sides of the upper surface of the upper end of the sealing element 231 are fixedly connected with an air cylinder 234, one side surface of the sealing element 231 is hermetically connected with an air pressure detection element, one end of an elastic element 233 is fixedly connected to the upper surface of the inner part of the sealing element 231, and the other end of the elastic element 233 is fixedly connected with one end of a pressing element 232; at least two elastic force installation grooves 2314 are formed in one face of the pressing piece 232, at least two pressing grooves 2311 are formed in the opposite face, provided with the elastic force installation grooves 2314, of the pressing piece 232, a second pressing channel 2312 is arranged between each pressing groove 2311 and the corresponding pressing groove 2311 to communicate the two adjacent pressing grooves 2311, and protruding sealing blocks 2313 are arranged at the edges of the pressing grooves 2311.
In one embodiment, the filtering device 3 is hermetically connected with one end of the collecting device 2, the filtering device 3 filters larger particles in the airflow, the other end of the collecting device 2 is hermetically connected with the detecting device 4 through a conduit, the detecting device 4 has all functions of detecting dimethyl sulfate, an airflow detecting device 4 is arranged between the device for detecting dimethyl sulfate and the collecting device 2, the airflow detecting device 4 is used for detecting the size of the airflow in the collecting device 2, and the detecting device 4 is hermetically connected with an air pump through a conduit; the air pump is used for sucking outside air into the equipment, the casing 1 is wrapped on the air pump, the collecting device 2, the filtering device 3 and the detecting device 4, a plurality of through holes used for equipment are formed in the surface of the casing 1, and an equipment installation position is arranged in the casing 1; the dimethyl sulfate air sampling detection device further comprises a control device 5, the control device 5 is electrically connected with the inflator pump, the collection device 2 and the detection device 4, the control device 5 is electrically connected with each element, and the control device 5 is used for controlling the operation of each element and displaying the data of each element;
the receiving base 22 is fixedly arranged on the machine shell 1, a plurality of receiving positions 221 are arranged above the receiving base 22, a first concave channel 222 is arranged between each receiving position 221 and each receiving position 221 to communicate the adjacent receiving positions 221, and a groove 223 is arranged on the edge of the upper surface of the receiving base 22; the upper end face of the receiving base 22 is tightly connected with the lower end face of the pressing piece 232, the upper end face of the receiving base 22 and the lower end face of the pressing piece 232 are both provided with a sealing rubber which has the property of resisting dimethyl sulfate, the receiving position 221 of the receiving base 22 and a pressing groove 2311 of the pressing piece 232 form four first inner cavities, a sealing block 2313 of the pressing piece 232 is embedded in a groove 223 of the receiving base 22 in a sealing way so as not to leak air, a complete channel is formed by the first sunken channel 222 and the second pressing channel 2312, each first inner cavity is wrapped with a collecting piece 21, one end of the front collecting cover 211 is detachably connected with one end of the rear collecting cover 212 in a sealing way, the front collecting cover 211 and the rear collecting cover 212 form a second inner cavity 213, one end of the front collecting cover 211, which is far away from the rear collecting cover 212, is provided with a smaller first opening 2112 which extends outwards, the other end edge end face of the front collecting cover 211 is in a U-shaped end face, and the inner surface of the U-shaped end face 2111 is also provided with a sealing rubber, the edge of the rear collection cover 212 is hermetically clamped on the inner surface of the U-shaped end face 2111 of the front collection cover 211, and one end of the rear collection cover 212 far away from the front collection cover 211 is provided with a small second opening 2121 which extends outwards; a layer of foam plastic, a layer of silica gel and a layer of foam plastic are sequentially placed in the second chamber of the collecting piece 21 to be used as fillers; the second inner cavity 213 is tightly dried by the filler, and the silica gel is impregnated in 8 mg%/mL mercaptopyridine; silica gel impregnated in 8 mg%/mL mercaptopyridine can carry out derivatization reaction while collecting dimethyl sulfate in air; the first opening 2112 of each collecting element 21 in each first chamber is positioned at the front end, the second opening 2121 is positioned at the rear end, the first opening 2112 and the second opening 2121 are tightly attached to the complete channel formed by the first sunken channel 222 and the second pressing channel 2312, and the attached gas does not seep out; the end surface of the second opening 2121 of the collecting element 21 in the front first chamber is attached to the end surface of the first opening 2112 of the collecting element 21 in the rear first chamber; the feeding assembly 24 is positioned above one side of the receiving base 22; the air sealing element 231 is in a shell shape, two opposite sides of the upper surface of the upper end of the air sealing element 231 are fixedly connected with an air cylinder 234, the air cylinder 234 is provided with a complete system, the operation state of the air cylinder 234 is controlled by the control device 5, one side surface of the air sealing element 231 is hermetically connected with an air pressure detecting element which is used for detecting the air pressure in the air sealing element 231, one end of an elastic element 233 is fixedly connected to the upper surface of the inner part of the air sealing element 231, the other end of the elastic element 233 is fixedly connected to an elastic force installation groove 2314 of a pressing element 232, the elastic element 233 and the pressing element 232 are positioned in the air sealing element 231, when no pressure acts on the pressing element 232, the elastic element 233 is in a natural state, the pressing element 232 is higher than the inner height of the air sealing element 231 at the moment, and the elastic element 233 plays roles of buffering and increasing the pressure; the lower end face of the sealing element 231 is also provided with sealing rubber, and the lower end face of the sealing element 231 is connected with the upper end face of the bearing base 22 in a sealing and fitting mode.
In specific implementation, firstly, a layer of plastic foam is plugged into each front collection cover 211 and each rear collection cover 212, then a piece of silica gel soaked in 8 mg%/mL mercaptopyridine is plugged between the front collection cover 211 and the rear collection cover 212, the rear collection cover 212 is tightly clamped in a U-shaped groove of the front collection cover 211, the processed collection piece 21 is placed into the feeding assembly 24, the control device 5 starts the equipment, the equipment runs, when the control device 5 detects that the collection piece 21 is arranged in the feeding assembly 24, the cylinder 234 is controlled, the cylinder 234 pulls the pressing assembly 23 upwards, the control device 5 controls the feeding assembly 24 to enable the collection piece 21 on the control assembly to fall into each first chamber, then the cylinder 234 is controlled by the control device 5 to push the pressing assembly 23 to press downwards, the lower end face of the pressing piece 232 is tightly attached to the upper end face of the base 22 under the action of the elastic piece 233 and the cylinder 234, the sealing block 2313 is embedded in the groove 223 on the bearing base 22, the inner surface of the first chamber and the outer surface of the collecting piece 21 extrude sealing rubber, the first concave channel 222 and the second pressing channel 2312 form a complete channel to extrude the sealing rubber from the inner surface and the outer surfaces of the first opening 2112 and the second opening 2121, and the sealing rubber is completely in a sealing state and cannot leak gas; then the control device 5 controls the operation of the air pump, at the moment, the air pump enables the end of the collecting part 21 to generate negative pressure, outside air is sucked into the collecting part 21, the air filters large granular substances carried by the air through the filtering device 3, the large granular substances are prevented from entering equipment to influence experiments and cause equipment damage, the air enters the collecting part 21 from a first opening 2112 of a first collecting part 21 through the filtering device 3, silica gel in the collecting part 21 adsorbs dimethyl sulfate, silica gel impregnated in 8 mg%/mL mercaptopyridine can carry out derivatization while collecting dimethyl sulfate in the air, the complexity and interference of later derivatization treatment are reduced, the sampling efficiency in the bearing capacity reaches more than 90%, and meanwhile, the penetrating capacity of the equipment to the dimethyl sulfate can meet the technical requirement that the sampling can be carried out for at least 2 hours under 2 times of occupational contact limiting concentration, the sampling can be carried out for 8 hours at the same time, and the requirement of long-time sampling of professional contact limit of dimethyl sulfate can be better met; when the airflow sequentially passes through the four collecting pieces 21 in the collecting device 2, the airflow enters the airflow detection device 4 through the guide pipe, at the moment, the airflow detection device 4 can detect the resistance of the passing airflow, the airflow must meet (the ventilation resistance is less than 4.0KPa under the flow rate of 0.2L/min), the equipment continues to operate when the conditions are met, and the control device 5 can perform a prompting and warning function when the conditions are not met; when the equipment normally operates, airflow enters the detection equipment from the airflow detection assembly, and the detection equipment performs primary detection on dimethyl sulfate in the airflow; after the collection device 2 collects the equipment, the control device 5 controls the air cylinder 234 to stretch the compaction assembly 23, an operator takes out the collection piece 21, marks the collection piece 21, and manually detects the dimethyl sulfate adsorbed by the silica gel after subsequent operation; the sectional detection is realized, and the complicated work of cutting and separating the collecting pipe is not needed; when collection is needed to be continued, the control device 5 can control the feeding assembly 24, the feeding assembly 24 sequentially puts the next set of collecting pieces 21 on the receiving base 22, and the using effect is more effective.
In the present embodiment, the feeding assembly 24 of the device for air sampling and detecting dimethyl sulfate includes a feeding guide 241, a partition 242, a first motor 243, a light sensing element and a gravity sensing element; the feeding guide piece 241 is in a shape of an inclined guide rail, a concave groove is arranged in the middle of the upper surface of the feeding guide piece 241, and two opposite mounting small holes are arranged on two sides of one end of the feeding guide piece 241; one end of the feeding guide member 241 is movably connected with one end of a partition 242, the partition 242 is movably connected with a first motor 243 through a crawler, a gravity sensing member is fixedly connected above the position near one end of the feeding guide member 241 connected with the partition 242, and the light sensing member is fixedly connected to one end of the feeding guide member 241 close to the partition 242.
In one embodiment, the feeding guide 241 is in the form of an inclined guide rail, one end of the feeding guide 241 is fixedly connected to the upper end of the machine shell 1, a feeding port is arranged at the position connected with the machine shell 1, a concave groove is arranged in the middle of the upper surface of the feeding guide 241 and is used for enabling the collecting member 21 to be better supported and moved thereon, the other end of the feeding guide 241 is connected to the side edge of the supporting base 22, one feeding guide 241 is arranged at the side edge of each supporting position 221 on the collecting base, and two opposite mounting holes are arranged at two sides of one end of the feeding guide 241 close to the supporting base 22; the small mounting holes on two sides are movably connected with two ends of the partition board 242, a bearing is further arranged between the partition board 242 and the partition board 242 to enable the partition board 242 to be connected, one end, far away from the other partition board 242, of the partition board 242 on the most side is movably connected with the first motor 243, the motor is a stepping motor, the partition board 242 controls whether the collecting piece 21 can enter the bearing base 22 from the feeding assembly 24 or not, the feeding guide piece 241 is connected with the gravity sensing piece which is fixedly connected with the upper portion of the position near one end of the partition board 242, the gravity sensing piece identifies whether the collecting piece 21 has the effect on the feeding guide piece 241, the light sensing piece is fixedly connected to one end, close to the partition board 242, of the feeding guide piece 241, and the light sensing piece identifies whether the collecting piece 21 enters the bearing base 22 or not.
When the concrete implementation, put into each feeding guide part 241 with the collection piece 21 that the promise was handled on casing 1 feed inlet, under the effect of gravity, collection piece 21 prolongs feeding guide part 241 and slides into the one end that is close to accepting base 22, collection piece 21 extrudees the gravity-feed induction piece under the effect of gravity this moment, the gravity-feed induction piece discerns there is collection piece 21, when needs use collection piece 21, controlling means 5 control motor, the motor rotates and drives the baffle and rotate, collection piece 21 flows into and accepts base 22, after light-feed induction piece senses collection piece 21 and passes through, controlling means 5 control motor rotates, make the baffle block next collection piece 21, prevent that two collection pieces 21 from getting into and accepting base 22, light-feed induction ware discerns that there are two collection pieces 21 to get into and accepts base 22 simultaneously, control sends the suggestion, equipment does not operate.
Of course, the present invention can also have other various embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative work, and all of them belong to the protection scope of the present invention.
Claims (8)
1. A dimethyl sulfate air sampling detection device is characterized by comprising: the device comprises a shell, an air pump, a collecting device, a filtering device and a detecting device;
the filtering device is hermetically connected with one end of the collecting device, the other end of the collecting device is hermetically connected with the detecting device through a guide pipe, and the detecting device is hermetically connected with the air pump through the guide pipe; the casing is wrapped by the air pump, the collecting device, the filtering device and the detecting device;
the collecting device comprises a collecting piece, a bearing base, a pressing assembly and a feeding assembly; one side of the bearing base is tightly connected with one end of the pressing component, the bearing base and the pressing component form at least two first inner cavities, each inner cavity is wrapped with a collecting piece, and the feeding component is located above one side edge of the bearing base.
2. The dimethyl sulfate air sampling and detecting device according to claim 1, wherein the receiving base is fixedly installed on the housing, a plurality of receiving positions are arranged above the receiving base, a first concave channel is arranged between the receiving positions to communicate the adjacent receiving positions, and a groove is arranged on the edge of the upper surface of the receiving base.
3. The dimethyl sulfate air sampling and detecting device according to claim 1, wherein the collecting member comprises a front collecting cover and a rear collecting cover; collect cover one end after the airtight connection can be dismantled to preceding collection cover one end, preceding collection cover and back collection cover form the second inner chamber, the one end that preceding collection cover kept away from the back collection cover is equipped with the first opening that extends earlier on, preceding collection cover other end edge terminal surface is the form terminal surface of forking, the back is collected the cover edge block and is in the preceding forking terminal surface of collecting the cover, the one end that preceding collection cover was kept away from to the back is equipped with the second opening that extends.
4. The dimethyl sulfate air sampling and detecting device according to claim 1, wherein the compressing assembly comprises an air cylinder, a compressing piece, an elastic piece, a sealing piece and an air pressure detecting piece; the closing member is the shell form, the equal fixed connection cylinder in the relative both sides of closing member upper end upper surface, a closing member side airtight connection atmospheric pressure detects the piece, fixed connection elastic component one end above the closing member is inside, the other one end fixed connection of elastic component compresses tightly piece one end.
5. The dimethyl sulfate air sampling and detecting device according to claim 4, wherein at least two elastic force installation grooves are formed in one surface of the compressing member, at least two compressing grooves are formed in the surface of the compressing member opposite to the surface provided with the elastic force installation grooves, a second compressing channel is arranged between the compressing grooves and is used for communicating the two adjacent compressing grooves, and a protruding sealing block is arranged at the edge of each compressing groove.
6. The dimethyl sulfate air sampling and detecting device according to claim 1, wherein the feeding assembly comprises a feeding guide member, a partition plate, a first motor, a light sensing member and a gravity sensing member; one end of the feeding guide piece is movably connected with one end of the partition board, the partition board is movably connected with the first motor through a crawler, one end, connected with the partition board, of the feeding guide piece is fixedly connected with the gravity sensing piece, and the light sensing piece is fixedly connected to one end, close to the partition board, of the feeding guide piece.
7. The dimethyl sulfate air sampling and detecting device according to claim 6, wherein the feeding guide member is in a shape of an inclined guide rail, a concave groove is formed in the middle of the upper surface of the feeding guide member, and opposite mounting small holes are formed in two sides of one end of the feeding guide member.
8. The dimethyl sulfate air sampling and detecting device according to claim 1, further comprising a control device, wherein the control device is electrically connected with each element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220213936.2U CN216847103U (en) | 2022-01-26 | 2022-01-26 | Dimethyl sulfate air sampling detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220213936.2U CN216847103U (en) | 2022-01-26 | 2022-01-26 | Dimethyl sulfate air sampling detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216847103U true CN216847103U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220213936.2U Active CN216847103U (en) | 2022-01-26 | 2022-01-26 | Dimethyl sulfate air sampling detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216847103U (en) |
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2022
- 2022-01-26 CN CN202220213936.2U patent/CN216847103U/en active Active
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