CN217084358U - Volatile organic compound sampling device - Google Patents
Volatile organic compound sampling device Download PDFInfo
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- CN217084358U CN217084358U CN202121311565.3U CN202121311565U CN217084358U CN 217084358 U CN217084358 U CN 217084358U CN 202121311565 U CN202121311565 U CN 202121311565U CN 217084358 U CN217084358 U CN 217084358U
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Abstract
The utility model discloses a volatile organic compounds sampling device, including the sampling box, the top of sampling box is provided with miniature negative pressure pump and control mechanism respectively, the inner wall fixedly connected with cushion of sampling box, and the fixed surface of cushion is connected with the negative pressure pipe, and the top of negative pressure pipe communicates with the inlet end of miniature negative pressure pump mutually, and the surface of negative pressure pipe is provided with threaded joint, and the inside of negative pressure pipe is provided with sampling mechanism. This volatile organic compounds sampling device utilizes miniature negative pressure pump to extract the negative pressure, make two semicircular valve warp, the negative pressure transmits to the sampling bucket, the air gets into the sampling bucket from sampling bucket right side opening, and adsorb on the surface of sampling membrane, thereby reached and carried out the purpose of sampling to volatile organic compounds, and through setting up four screwed joint and sampling bucket, reached and carried out the purpose of quartic sampling to volatile organic compounds in the air simultaneously, examine time measuring to the sample, can reach the purpose that improves and detect the accuracy.
Description
Technical Field
The utility model relates to an environment sampling technical field specifically is volatile organic compounds sampling device.
Background
Volatile organic compounds are a general name of a plurality of mixtures which have great influence on human health, mainly come from industrial waste gas, fuel waste gas, various combustion products, building materials and the like, and the concentration of the volatile organic compounds needs to be detected according to the requirements of healthy life.
The existing volatile organic compound detection sampling device also has certain defects, when the device is used, multiple times of sampling cannot be carried out simultaneously, so that the samples are difficult to be contrasted and detected, and the samples are easy to lose efficacy due to lack of sealing after the sampling is finished until the samples are detected, so that the detection result of the volatile organic compound samples is inaccurate.
Therefore, the utility model provides a volatile organic compounds sampling device solves this problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a volatile organic compounds sampling device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: volatile organic compounds sampling device, including the sampling box, the top of sampling box is provided with miniature negative pressure pump and control mechanism respectively, the inner wall fixedly connected with cushion of sampling box, the fixed surface of cushion is connected with negative pressure pipe, the top of negative pressure pipe and miniature negative pressure pump's inlet end intercommunication, the surface of negative pressure pipe is provided with threaded joint, the inside of negative pressure pipe is provided with sampling mechanism, sampling mechanism includes threaded connection at the surperficial sampling communicating pipe of threaded joint, the surface of sampling communicating pipe is provided with the leak protection sleeve, the right-hand member fixedly connected with sampling bucket of sampling communicating pipe, the inner wall of sampling bucket is provided with the sampling membrane, the right-hand member opening part of sampling bucket is provided with the rubber buffer, the right side opening part of sampling box is provided with protection mechanism, the left side wall of sampling box is provided with fixed establishment.
Preferably, two semicircular valves are arranged inside the leakage-proof sleeve, and the two semicircular valves jointly form a circular membrane for preventing the volatile gas from leaking.
Preferably, the protection mechanism includes that the card establishes the metal filters at sampling box right side opening part, and the right side surface cover of sampling box is equipped with the protective cover.
Preferably, the number of the threaded joints is four, and the four threaded joints are equidistantly arranged on the surface of the negative pressure pipe.
Preferably, control mechanism includes fixed connection at the battery case at sampling box top, and the inside of battery case is provided with portable power source, and the right side wall of battery case is provided with control switch.
Preferably, fixed establishment includes rubber suction cup and the link of fixed connection at the sampling box left side wall, and rubber suction cup's quantity is four, and four rubber suction cups are the four corners department of rectangle array setting at the sampling box left side wall.
Advantageous effects
The utility model provides a volatile organic compounds sampling device possesses following beneficial effect:
1. this volatile organic compounds sampling device, through setting up miniature negative pressure pump, control mechanism, negative pressure pipe and sampling mechanism, utilize miniature negative pressure pump extraction negative pressure, make two semi-circular valve warp, the negative pressure transmits to the sampling bucket, the air gets into in the sampling bucket from sampling bucket right side opening, and adsorb on the surface of sampling membrane, thereby reached and carried out the purpose of sampling to volatile organic compounds, and through setting up four screwed joint and sampling bucket, reached and carried out the purpose of quartic sampling to volatile organic compounds in the air simultaneously, examine time measuring to the sample, can reach the purpose that improves and detect the accuracy.
2. This volatile organic compounds sampling device through setting up leak protection sleeve and rubber buffer, after the sampling, takes off sampling communicating pipe from the screwed joint surface, fills in the rubber buffer in the sampling bucket, utilizes two semi-circular valve and rubber buffer, reaches the purpose of sealing up to sampling bucket inside, does benefit to the accuracy that improves the sample.
3. This volatile organic compounds sampling device through setting up metal filters, can block interferents such as mosquito when the sample, through setting up the protective cover, can protect this sampling device when not using, through setting up rubber suction cup and link, does benefit to and fixes this sampling device.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 1.
In the figure: 1 sampling box, 2 miniature negative pressure pumps, 3 cushion blocks, 4 negative pressure pipes, 5 screwed joint, 6 sampling communicating pipes, 7 leak protection sleeves, 8 sampling buckets, 9 sampling membranes, 10 rubber plugs, 11 semicircular valves, 12 metal filter screens, 13 protective covers, 14 portable power sources, 15 control switches, 16 rubber suction cups and 17 suspension loops.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: volatile organic compounds sampling device, including sampling box 1, sampling box 1's top is provided with miniature negative pressure pump 2 and control mechanism respectively, and control mechanism includes the battery case of fixed connection at sampling box 1 top, and the inside of battery case is provided with portable power source 14, and the right side wall of battery case is provided with control switch 15.
The inner wall fixedly connected with cushion 3 of sampling box 1, the fixed surface of cushion 3 is connected with negative pressure pipe 4, and the top of negative pressure pipe 4 communicates with the inlet end of miniature negative pressure pump 2, and the surface of negative pressure pipe 4 is provided with screwed joint 5, and the quantity of screwed joint 5 is four, and four screwed joint 5 equidistance set up on the surface of negative pressure pipe 4.
The inside of negative pressure pipe 4 is provided with sampling mechanism, and sampling mechanism includes threaded connection at 5 surperficial sampling communicating pipes 6 of threaded connection, and the surface of sampling communicating pipes 6 is provided with leak protection sleeve 7, and the inside of leak protection sleeve 7 is provided with two semi-circular valves 11, and two semi-circular valves 11 constitute the circular membrane that prevents volatile gas leakage jointly.
The right side opening part of sampling box 1 is provided with protection machanism, and protection machanism establishes at the metal filters 12 of 1 right side opening parts of sampling box including the card, through setting up metal filters 12, can block interferents such as mosquito when the sample, and the right side surface cover of sampling box 1 is equipped with protective cover 13, through setting up protective cover 13, can protect this sampling device when not using.
Sampling box 1's left side wall is provided with fixed establishment, and fixed establishment includes fixed connection at the rubber suction cups 16 and the link 17 of 1 left side wall of sampling box, and the quantity of rubber suction cups 16 is four, and four rubber suction cups 16 are the four corners department of rectangular array setting at 1 left side wall of sampling box, through setting up rubber suction cups 16 and link 17, do benefit to and fix this sampling device.
The working principle is as follows: when the volatile organic compound sampling device is used, the sampling device is moved to the external environment and is fixed through the rubber sucker 16 or the hanging ring 17, when sampling is carried out, the protective cover 13 is firstly taken down, the metal filter 12 and the rubber plug 10 are taken down, then the metal filter 12 is tightly clamped with the sampling box 1, the metal filter 12 is utilized to block interference objects such as mosquitoes and the like during sampling, the miniature negative pressure pump 2 is started through the control switch 15, the miniature negative pressure pump 2 extracts negative pressure to enable the two semicircular valves 11 to deform, the negative pressure is transmitted to the sampling barrel 8, air enters the sampling barrel 8 from the opening at the right side of the sampling barrel 8, volatile organic compounds in the air are adsorbed on the surface of the sampling membrane 9, and therefore the purpose of sampling the volatile organic compounds is achieved, after the sampling time is over, the rubber plug 10 is plugged into the sampling barrel 8, the two semicircular valves 11 and the rubber plug 10 are utilized, reach 8 inside purposes of sealing up of sampling barrel, do benefit to the accuracy that improves the sample, examine time measuring the sample in needs, take off sampling communicating pipe 6 from 5 surfaces of screwed joint, carry out analysis and detection to sampling membrane 9, through four screwed joint 5 and sampling barrel 8, reached simultaneously to the volatile organic compounds in the air carry out the purpose of quartic sampling, examine time measuring the sample, can reach the purpose that improves and detect the accuracy.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Volatile organic compounds sampling device, including sampling box (1), its characterized in that: the sampling device is characterized in that the top of the sampling box (1) is respectively provided with a micro negative pressure pump (2) and a control mechanism, the inner wall of the sampling box (1) is fixedly connected with a cushion block (3), the surface of the cushion block (3) is fixedly connected with a negative pressure pipe (4), the top end of the negative pressure pipe (4) is communicated with the air inlet end of the micro negative pressure pump (2), the surface of the negative pressure pipe (4) is provided with a threaded joint (5), the inside of the negative pressure pipe (4) is provided with a sampling mechanism, the sampling mechanism comprises a sampling communicating pipe (6) which is in threaded connection with the surface of the threaded joint (5), the surface of the sampling communicating pipe (6) is provided with a leakage-proof sleeve (7), the right end of the sampling communicating pipe (6) is fixedly connected with a sampling barrel (8), the inner wall of the sampling barrel (8) is provided with a sampling membrane (9), the right end opening of the sampling barrel (8) is provided with a rubber plug (10), and the right side opening of the sampling box (1) is provided with a protection mechanism, the left side wall of the sampling box (1) is provided with a fixing mechanism.
2. The volatile organic compound sampling device of claim 1, wherein: two semicircular valves (11) are arranged inside the leakage-proof sleeve (7), and the two semicircular valves (11) jointly form a circular membrane for preventing the leakage of the volatile gas.
3. The volatile organic compound sampling device of claim 1, wherein: protection machanism establishes metal filters (12) at sampling box (1) right side opening part including the card, and the right side surface cover of sampling box (1) is equipped with protective cover (13).
4. The volatile organic compound sampling device of claim 1, wherein: the number of the threaded joints (5) is four, and the four threaded joints (5) are arranged on the surface of the negative pressure pipe (4) at equal intervals.
5. The volatile organic compound sampling device of claim 1, wherein: control mechanism includes fixed connection at the battery case at sampling box (1) top, and the inside of battery case is provided with portable power source (14), and the right side wall of battery case is provided with control switch (15).
6. The volatile organic compound sampling device of claim 1, wherein: the fixing mechanism comprises rubber suckers (16) and hanging rings (17) which are fixedly connected to the left side wall of the sampling box (1), the number of the rubber suckers (16) is four, and the four rubber suckers (16) are arranged at the four corners of the left side wall of the sampling box (1) in a rectangular array mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121311565.3U CN217084358U (en) | 2021-06-11 | 2021-06-11 | Volatile organic compound sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121311565.3U CN217084358U (en) | 2021-06-11 | 2021-06-11 | Volatile organic compound sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217084358U true CN217084358U (en) | 2022-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121311565.3U Active CN217084358U (en) | 2021-06-11 | 2021-06-11 | Volatile organic compound sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217084358U (en) |
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2021
- 2021-06-11 CN CN202121311565.3U patent/CN217084358U/en active Active
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