CN113804844B - Sampling bottle and water quality on-line monitoring sampling device adopting same - Google Patents
Sampling bottle and water quality on-line monitoring sampling device adopting same Download PDFInfo
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- CN113804844B CN113804844B CN202010526044.3A CN202010526044A CN113804844B CN 113804844 B CN113804844 B CN 113804844B CN 202010526044 A CN202010526044 A CN 202010526044A CN 113804844 B CN113804844 B CN 113804844B
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- 238000005070 sampling Methods 0.000 title claims abstract description 169
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 238000012544 monitoring process Methods 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 230000009471 action Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000007779 soft material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 239000000523 sample Substances 0.000 description 179
- 230000000670 limiting effect Effects 0.000 description 35
- 238000001514 detection method Methods 0.000 description 32
- 230000002572 peristaltic effect Effects 0.000 description 16
- 238000005265 energy consumption Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sampling bottle and a water quality on-line monitoring sampling device with the same. According to the sampling bottle, the stop valve with the automatic sealing locking structure is arranged on the inner cover, when the connector is not inserted into the bottle opening, the automatic sealing locking structure of the stop valve is in an initial state, when the connector is inserted into the bottle opening from the round hole of the outer cover, the automatic sealing locking structure of the stop valve is pushed to move to be limited from the initial state, at the moment, the stop valve is in an open state, water sample or gas enters the sampling bottle or is discharged from the bottle through the stop valve, after the connector is pulled out of the bottle opening, the automatic sealing locking structure is moved to be in a lower locking position from the upper limit, at the moment, the stop valve is in a sealing locking state, if the connector is inserted into the bottle opening again, the stop valve cannot be pushed by the connector again, the sampling bottle is in the sealing locking state, and the water sample can be effectively prevented from being tampered in the sampling process.
Description
Technical Field
The invention relates to the technical field of water quality sampling, in particular to a sampling bottle, and in addition, particularly relates to a water quality on-line monitoring sampling device adopting the sampling bottle.
Background
At present, the national strength of water environment quality monitoring and treatment is increased year by year, and the water quality monitoring service (including surface water monitoring and supervision monitoring of source sewage enterprises) accepted by third party laboratories is also increased. The traditional laboratory operation mode is in-situ manual sampling back to the laboratory for centralized detection, and the traditional monitoring mode has the following problems:
(1) The on-site manual sampling workload is large, and the personnel investment is high;
(2) The artificial sampling timeliness is low, the sample representativeness is not strong, and the pollution discharge supervision requirement is difficult to meet;
(3) Many links of manual sampling lack effective monitoring means, and samples are possibly counterfeited.
At present, some related products for outdoor automatic sampling are available on the market to solve the problems, but after the water sample collection is completed, sampling personnel still have possibility of tampering with the water sample in the sampling bottle in the sampling process, and later tamper traces cannot be traced, so that the authenticity of the sample in the retrieval laboratory cannot be ensured.
Disclosure of Invention
The invention provides a sampling bottle and a water quality on-line monitoring sampling device adopting the same, which are used for solving the technical problem that a water sample in the sampling bottle is tampered in the sampling process of the existing automatic sampling product.
According to one aspect of the invention, a sampling bottle is provided, wherein the sampling bottle is provided with at least one bottle opening communicated with a bottle cavity, a boss is arranged in the bottle opening, an inner cover is arranged on one side, close to the bottle opening, of the boss, an outer cover is also assembled outside the bottle opening, the outer cover is locked and sealed with the bottle opening, and through holes are formed in the outer cover and the inner cover;
the automatic sealing stop valve is characterized by further comprising a stop valve with an automatic sealing stop structure, one end of the stop valve is fixed at the through hole of the inner cover, and the other end of the stop valve which is oppositely arranged is far away from the inner cover.
Further, the stop valve includes disk seat, case and spring, disk seat fixed mounting is on the inner cover, the case sets up in the disk seat, the case is including connecting spring spacing post and the valve plate as an organic whole, the valve plate is close to the inner cup setting, the one end cover of spring is established on the spring spacing post, and the other end supports and leans on the diapire of disk seat, set up two at least stop pins on the circumference of valve plate, set up two at least spouts on the both sides wall of disk seat, the stop pin embedding in the spout and slidable setting in the spout.
Further, a locking buckle for preventing the stop pin from being separated from the lower locking position is arranged at the bottom end of the sliding groove.
Further, the chute comprises a first arc-shaped groove, a second arc-shaped groove and a locking groove, wherein the second arc-shaped groove is positioned between the first arc-shaped groove and the locking groove, when the stop pin is positioned at the initial state position, the stop pin is positioned in the first arc-shaped groove, when the stop pin is positioned at the upper limit position, the stop pin is positioned at the top end of the first arc-shaped groove, and when the stop pin is positioned at the lower locking position, the stop pin is positioned in the locking groove.
Further, the stop valve comprises a valve seat, a valve core and a spring, wherein the valve seat is fixedly arranged at a round hole of the inner cover, the valve seat is of a cylindrical structure, the valve core is arranged in the valve seat, the valve core comprises a spring limit column and a valve plate which are connected into a whole, the valve plate is arranged close to the inner cover, one end of the spring is sleeved on the spring limit column, the other end of the spring is abutted against the bottom wall of the valve seat, a plurality of elastic supporting feet which are uniformly distributed are arranged between the valve plate and the spring limit column, a first limit groove and a second limit groove which penetrate along the radial direction are formed in the valve seat, and the first limit groove and the second limit groove are vertically distributed;
when the elastic support leg is in the initial state position, the spring is compressed, the bottom end of the unfolding arm of the elastic support leg is propped against the bottom surface of the first limiting groove, the connector is inserted into the bottle mouth and pushes the valve core, when the bottom end of the unfolding arm of the elastic support leg is propped against the top surface of the first limiting groove or the spring is in the maximum compression amount, the elastic support leg is in the upper limit, the stop valve is in the open state, after the connector is pulled out, the elastic support leg slides from the first limiting groove to the second limiting groove and is limited under the action of the resilience force of the spring, the elastic support leg is in the lower locking position, and the valve plate is flush with the inner cover.
Further, the upper end face of the expansion arm of the elastic support leg, which is contacted with the valve seat, is of a plane structure, and the lower end face of the expansion arm of the elastic support leg, which is contacted with the valve seat, is of an inclined plane or cambered surface structure.
Further, an unlocking groove is formed in the surface, close to the inner cover, of the valve plate.
Further, a sealing gasket for sealing is further arranged between the inner cover and the outer cover, and after the outer cover is locked with the bottle mouth, the outer cover tightly presses the sealing gasket on the inner cover and the bottle mouth, and the sealing gasket is made of elastic soft materials.
Further, the outer cover is provided with a stop anti-counterfeiting ring.
The invention also provides an online water quality monitoring and sampling device which adopts the sampling bottle.
The invention has the following effects:
the sampling bottle is provided with a bottle mouth, water sample and/or gas can be introduced into the bottle, an inner cover is arranged on an annular boss in the bottle mouth, then the bottle mouth is locked by an outer cover, concentric round holes are formed in the outer cover and the inner cover so that a water sample joint or an air joint can be conveniently inserted into the sampling bottle, a stop valve with an automatic sealing locking structure is arranged at the round hole of the inner cover, when the joint is not inserted into the bottle mouth, the automatic sealing locking structure of the stop valve is in an initial state position, and when the joint is inserted into the bottle mouth from the round hole of the outer cover, the automatic sealing locking structure of the stop valve is pushed to move, the automatic sealing locking structure is moved from the initial state to be limited, at the moment, the stop valve is in an opened state, the water sample or gas enters the sampling bottle through the stop valve or is discharged from the bottle, after the joint is pulled out of the bottle mouth, the automatic sealing locking structure is moved from the upper limit to the lower locking position, at the moment, and if the joint is inserted into the bottle mouth again, the automatic sealing locking structure of the stop valve cannot be pushed into the bottle mouth again, the stop valve cannot be pushed by the joint again, and both ends of the sampling bottle can be effectively prevented from being tampered with in the sampling process.
In addition, the water quality on-line monitoring sampling device has the advantages.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of a structure in which a water quality on-line monitoring and sampling device according to a preferred embodiment of the present invention only opens an outer door.
Fig. 2 is a schematic view of a structure in which an outer door and an inner door are simultaneously opened by the water quality on-line monitoring and sampling device according to a preferred embodiment of the present invention.
Fig. 3 is a schematic diagram of a pipeline connection structure of the water quality on-line monitoring and sampling device for sampling water samples and reserving the water samples according to the preferred embodiment of the invention.
Fig. 4 is a schematic front view of a sampling bottle according to a preferred embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view taken at A-A in fig. 4.
Fig. 6 is a schematic top view of the inner cap of the preferred embodiment of the present invention with a stop valve mounted thereon.
Fig. 7 is a schematic cross-sectional view of fig. 6 taken from B-B.
Fig. 8 is a schematic view showing a structure in which the stopper valve is mounted on the inner cap of the preferred embodiment of the present invention at another angle.
Fig. 9 is a schematic structural view of the valve seat in fig. 8.
Fig. 10 is a schematic view showing a structure in which a stop valve is mounted on an inner cap in a modified embodiment of the present invention.
Fig. 11 is a schematic sectional view showing the structure of the stopper valve of fig. 10 in which the elastic leg is in the initial state position.
Fig. 12 is a schematic cross-sectional view of the resilient leg of the stop valve of fig. 10 in an upper limit position.
Fig. 13 is a schematic cross-sectional view of the resilient leg of the stop valve of fig. 10 in a lower locking position.
Fig. 14 is a schematic cross-sectional view of the sample bottle of fig. 1 mounted on a sample bottle holder in accordance with a preferred embodiment of the present invention.
Fig. 15 is a schematic cross-sectional view of the watersample joint of fig. 14.
Fig. 16 is a schematic cross-sectional view of the upper mounting assembly of fig. 14.
Description of the reference numerals
10. A cabinet; 101. a cabinet body; 102. an outer door; 103. an inner door; 11. a control system; 12. a detection probe box; 13. a constant volume bottle; 14. a sample preparing pump set; 15. a sampling bottle to be inspected; 16. backup sampling bottle; 17. a sampling bottle support; 171. a water receiving tray; 172. a lower mounting assembly; 173. an upper mounting assembly; 1721. a lower limit cutting sleeve; 1722. a water sample joint; 1723. a water outlet hole; 1724. a pagoda joint; 1725. a limit nut; 1726. an annular groove; 1727. an upper limit cutting sleeve; 1728. an air connector; 1729. cutting sleeve through the board; 200. a bottle mouth; 201. an annular boss; 202. an inner cover; 203. an outer cover; 204. a sealing gasket; 205. a stop anti-counterfeiting ring; 206. a stop valve; 207. a valve seat; 208. a valve core; 209. a chute; 210. a spring limit column; 211. a valve plate; 212. a stop pin; 213. a locking buckle; 214. unlocking grooves; 215. an elastic support leg; 2071. a first limit groove; 2072. the second limit groove; 2091. a first arc-shaped groove; 2092. a second arc-shaped groove; 2093. a locking groove.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.
As shown in fig. 1 to 2, a preferred embodiment of the present invention provides an online monitoring and sampling device for water quality, which comprises a cabinet 10, a control system 11, a detection probe box 12, a constant volume bottle 13, a sample preparation pump set 14, a sample to be detected bottle 15, a backup sample bottle 16 and a sample bottle bracket 17, wherein the control system 11, the detection probe box 12, the constant volume bottle 13, the sample preparation pump set 14, the sample to be detected bottle 15, the backup sample bottle 16 and the sample bottle bracket 17 are all arranged in the cabinet 10.
The interior of the cabinet 10 is divided into at least two independent isolation areas by a partition board, and the sample bottle 15 to be inspected and the backup sample bottle 16 are respectively located in different isolation areas. And be provided with different entrance guard between each isolation region to through the setting of waiting to examine sampling bottle 15 and backup sampling bottle 16 isolation, and set up different entrance guard, ensure the security of detecting the sample liquid, and prevent to tamper with the sample liquid in the sampling process, ensure the authenticity of the backup water sample that remains as original evidence.
Specifically, the cabinet 10 includes a cabinet body 101, an outer door 102 and an inner door 103, wherein the interior of the cabinet body 101 is divided into an upper area and a lower area by a partition board, the control system 11 and the sample bottle 15 to be detected are located in the upper area, the detection probe box 12, the constant volume bottle 13, the sample dispensing pump set 14 and the backup sample bottle 16 are located in the lower area, the outer door 102 and the whole cabinet body 101 form a closed space, and the inner door 103 and the lower area of the cabinet body 101 form a closed space. It can be understood that the inside of the cabinet 101 can be set in a left-right partition mode, only the partition setting of the sample bottle 15 to be detected and the backup sample bottle 16 needs to be ensured, and the area where the backup sample bottle 16 is located is provided with an access control.
Of course, in other embodiments of the present invention, the interior of the cabinet 101 may be further divided into four functional areas, namely, a control area, a sample area to be detected, a backup sample area and a sampling detection area, where the control system 11 is disposed in the control area, the sample bottle 15 to be detected is disposed in the sample area to be detected, the backup sample bottle 16 is disposed in the backup sample area, and the probe box 12, the constant volume bottle 13 and the sample pump set 14 are disposed in the sampling detection area, so that the sampling operation and the equipment maintenance are facilitated by disposing the components according to the functional areas. Moreover, the inner door 103 has an access control function, and a general sampling person does not have access control authority to open the inner door 103, but can only open the outer door 102 to remove the sample bottle 15 to be detected, but cannot remove the backup sample bottle 16. By setting the sampling bottle 15 to be detected and the backup sampling bottle 16 in a partitioned mode and setting the access control for the area where the backup sampling bottle 16 is located, sampling staff is prevented from tampering with the backup water sample in the sampling process, and the authenticity of the backup water sample reserved as original evidence is ensured.
In addition, in other embodiments of the present invention, the outer door 102 may also be provided with an access control function, so as to prevent non-sampling personnel from performing sampling operations or damaging and stealing equipment in the cabinet 10, for example, the outer door 102 is provided with a first-level access control authority, the inner door 103 is provided with a second-level access control authority, and general sampling personnel only open the first-level access control authority. The sampling bottle support 17 is fixedly installed on the left and right inner walls of the cabinet 10, specifically, the sampling bottle support 17 is installed on the left and right inner walls of the upper half area and the lower half area of the cabinet body 101, and the sampling bottle support 17 is used for fixing the sampling bottle 15 to be detected and the backup sampling bottle 16.
In addition, as shown in fig. 3, the constant volume bottle 13 and the detection probe box 12 are respectively connected with a sampling pump, so that the sampling pump (peristaltic pump B1 in fig. 3) is used for pumping and conveying the water sample at the water taking point into the constant volume bottle 13 and/or the detection probe box 12. Only the connecting lines of the constant volume bottle 13 are given as an example in fig. 3. The bottom of constant volume bottle 13 and detection probe case 12 all is provided with the discharge valve for discharge water sample, discharge valve and control system 11 electric connection, the opening or closing of control system 11 electric drive control discharge valve. The detection probe box 12 is used for performing conventional water quality monitoring on the water sample, for example, monitoring parameters such as water temperature, pH value, turbidity, dissolved oxygen, conductivity, transparency and the like of the water sample, the detection probe box 12 is electrically connected with the control system 11, the detection probe box 12 transmits conventional water quality monitoring results to the control system 11, and the constant volume bottle 13 is used for temporarily storing the water sample. It will be appreciated that the test probe box 12 and the volumetric flask 13 serve as temporary storage means for the water sample. One end of the sample distribution pump set 14 is connected with the constant volume bottle 13 or the detection probe box 12, the other end is connected with the to-be-detected sampling bottle 15 and the backup sampling bottle 16, and the sample distribution pump set 14 is used for conveying the water sample in the constant volume bottle 13 or the detection probe box 12 to the to-be-detected sampling bottle 15 and the backup sampling bottle 16 for storage. Specifically, the sample dispensing pump set 14 includes two sample dispensing peristaltic pumps (peristaltic pumps B2 and B3 in fig. 3), one end of one sample dispensing peristaltic pump is connected with the constant volume bottle 13 or the detection probe box 12, the other end is connected with the sample bottle 15 to be detected, one end of the other sample dispensing peristaltic pump is connected with the constant volume bottle 13 or the detection probe box 12, the other end is connected with the backup sample bottle 16, by setting the two sample dispensing peristaltic pumps, the water sample pumping of the sample bottle 15 to be detected and the backup sample bottle 16 can be controlled respectively, when the synchronous backup sampling is needed, the two sample dispensing peristaltic pumps work synchronously, and when only a single sample bottle is needed, only the sample dispensing peristaltic pump connected with the sample bottle 15 to be detected needs to be controlled. Of course, in other embodiments of the present invention, the number of peristaltic pumps included in the sample dispensing pump set 14 may be three, four, five, etc., and the specific number may be set according to actual needs, which is not limited herein. The sample preparation peristaltic pump is electrically connected with the control system 11, and the control system 11 can accurately control the sample injection volume of the sample preparation peristaltic pump. In addition, the peristaltic pump is connected with the sample bottle 15 to be detected and the backup sample bottle 16 through water hoses, and each water hose is provided with a pinch valve, the pinch valve is electrically connected with the control system 11, and the control system 11 controls the pinch valve to be opened or closed. For example, when the number of sample bottles 15 and backup sample bottles 16 to be inspected is plural, it is possible to control any one or more pinch valves to be opened by the control system 11, thereby realizing single sample bottle sample retention or plural sample bottle sample retention. During sample injection, the control system 11 controls the sample matching peristaltic pump to rotate forward so as to convey the water sample in the detection probe box 12 or the constant volume bottle 13 to the sample bottle 15 to be detected and/or the backup sample bottle 16 for storage, and during sample discharge, the control system 11 controls the sample matching peristaltic pump to rotate reversely so as to pump and discharge the water sample in the sample bottle 15 to be detected and/or the backup sample bottle 16 to the detection probe box 12 or the constant volume bottle 13, and then controls the liquid discharge valve to be opened so as to discharge the water sample.
It can be understood that the water quality on-line monitoring sampling device has two functional modes, namely a water quality monitoring mode and a sampling mode. The working process of the water quality monitoring mode comprises the following steps: and the water sample at the water taking point is extracted and conveyed to the detection probe box 12 in real time or periodically for detection, and when the detection probe box 12 detects that the water quality exceeds the standard, the control system 11 controls the sample preparation peristaltic pump and the pinch valves at the corresponding bottle positions to carry out sample retention. Therefore, the water quality monitoring mode mainly focuses on monitoring water quality, and sample retention is carried out when the water quality is monitored to exceed the standard. Of course, the water quality detection mode can also carry out sample retention while carrying out water quality monitoring, namely carrying out water sample retention operation no matter whether the water quality exceeds the standard or not. The sampling mode focuses on water sample sampling, and water sample of a water taking point is pumped and conveyed to the constant volume bottle 13 according to a preset sampling mode (equal time, equal amount, equal proportion of time, equal proportion of flow, liquid level triggering and the like), and then the control system 11 controls the sample distribution peristaltic pump and the corresponding pinch valve to work so as to convey the water sample in the detection constant volume bottle 13 to the sample bottle 15 to be detected and/or the backup sample bottle 16 for storage. It will be appreciated that the detection probe box 12 may be omitted, that is, the water quality on-line monitoring and sampling device of the present invention has only a sampling function, and the temporary water sample storage device only includes the constant volume bottle 13. Alternatively, the constant volume bottle 13 may be omitted, and the temporary water sample storage device may include only the detection probe box 12.
It can be understood that the control system 11 is responsible for the operation mode and the control of the sampling flow, the control of the pump valve of the sampling pipeline, the control of the camera/gate inhibition, the collection of sample information and energy consumption/pollution discharge data, the statistical analysis and early warning of energy consumption and pollution discharge data, the remote data interaction with the cloud server and other contents, and the sampling personnel can interact with the control system 11 through the mobile terminal APP.
Specifically, the control system 11 may implement functional control such as equal-proportion sampling, synchronous backup sampling, energy consumption/pollution discharge monitoring, etc., where equal-proportion sampling refers to: the system can collect mixed samples according to the equal proportion of time or the equal proportion of flow, taking the time equal proportion sampling as an example, the interval of the conventional sampling mode is 2 h/time, the interval of the time equal proportion sampling can be 10 min/time, the mixed samples are obtained for a small amount of times by shortening the sampling time interval, the representativeness is stronger, the pollution discharge rule of different industries/enterprises can be better adapted, and the stealing phenomenon is effectively avoided. Synchronous backup sampling refers to: the sample reserving area is divided into a sample area to be detected and a backup sample area, wherein the backup sample area is provided with a secondary access control, general sampling staff does not have operation authority on the backup sample, when the system is sampled, the sample bottle to be detected and the backup sample bottle simultaneously reserve the same water sample in an equivalent amount, and when the test result of the sample to be detected for sending out the detection is suspicious or needs to be rechecked for other reasons, the backup sample can be started for detection. When the water quality on-line monitoring sampling device is used for monitoring energy consumption/pollution discharge, the energy consumption data of water consumption, electricity consumption, coal (gas) burning amount and the like of enterprises can be collected in real time, the sewage discharge amount can be synchronously monitored, and the energy consumption data and the pollution discharge data are remotely transmitted to a cloud server on line. The enterprise declares energy consumption/pollution discharge balance coefficient and energy consumption/pollution discharge conversion time in advance, when the energy consumption/pollution discharge data monitored by the water quality on-line supervision sampling system is obviously larger than the balance coefficient declared by the enterprise, the enterprise can remotely send out early warning, and a specific early warning algorithm can be as follows:
wherein T represents energy utilization/pollution discharge conversion time, and energy utilization T 1 /T 0 Representing T 1 Or T 0 Energy consumption at moment, pollution discharge T 1 /T 0 +t represents T 1 Or T 0 Discharge amount at +t.
In addition, preferably, the water quality online supervision sampling device further comprises a camera (not shown) for video monitoring, wherein the camera is connected with the control system 11, and the control system 11 can control the rotation of the camera. The pan-tilt camera can be arranged at the top of the cabinet 10, or the upright rod is arranged beside the cabinet 10, and only the installation position can meet the video monitoring function. The initial monitoring azimuth of the camera is a water taking point, so that the water body performance, hydrologic condition, pollution discharge condition and the like of the water taking point can be monitored in real time. When the outer door 102 is opened, the control system 11 rotates the monitoring view angle of the camera from the initial monitoring orientation to the cabinet outer door 102 position, thereby monitoring and recording the sampling process, and when the outer door 102 is closed, the monitoring view angle of the camera is reset to the initial monitoring orientation.
The sampling bottle is provided with at least one bottle opening 200 communicated with the bottle cavity, a self-sealing mechanism (not shown in the drawing) capable of realizing self sealing is arranged on the bottle opening 200, the sampling pipeline is communicated with the bottle cavity through the self-sealing mechanism so that a sample output by the sampling pipeline enters the bottle cavity, and the bottle cavity is kept in a sealed state before and after sample injection. According to the sampling bottle, the self-sealing mechanism is arranged on the bottle mouth of the sampling bottle, and the sampling pipeline is communicated with the bottle cavity through the self-sealing mechanism during sampling, so that a sample output by the sampling pipeline enters the bottle cavity, the bottle cavity is kept in a sealed state through the self-sealing mechanism after sampling, the bottle cap cannot be opened in the whole sampling process, and the water sample can be effectively prevented from being tampered in the sampling process. It can be understood that the structures of the sample bottle 15 to be detected and the backup sample bottle 16 are completely consistent, and the sample bottles are the same sample bottle, so that the consistency of water samples in the sample bottle to be detected and the backup sample bottle is ensured.
In an excellent embodiment of the present invention, as shown in fig. 4 to 9, the sampling bottle is provided with at least one bottle mouth 200, a boss 201 is provided in the bottle mouth 200, an inner cap 202 is provided on one side of the boss 201 near the bottle mouth 200, an outer cap 203 is further provided outside the bottle mouth 200, and the outer cap 203 and the bottle mouth 200 are provided in a sealable manner. Preferably, the boss 201 is an annular boss.
In addition, a sealing gasket 204 is further disposed between the inner cap 202 and the outer cap 203, and the diameter of the sealing gasket 204 is equal to the outer diameter of the bottle mouth 200. After the outer cap 203 is locked, the height of the gap between the inner cap 202 (the bottle mouth 200) and the outer cap 203 is slightly smaller than the thickness of the sealing gasket 204, so that the outer cap 203 can press the sealing gasket 204 against the inner cap 202 and the bottle mouth 200, ensuring good sealing of the bottle mouth 200. The sealing pad 204 is made of elastic soft material, and can be penetrated by the joint, and after the joint is pulled out, the perforation on the sealing pad 204 can be automatically recovered, and the sealing effect can still be maintained.
In addition, the sealable structure between the outer cap 203 and the bottle mouth 200 can be various, and only the matching between the outer cap 203 and the bottle mouth 200 is required, so that the contact between the sample liquid in the bottle and the outside can be effectively isolated, for example: the periphery side of bottleneck 200 is provided with the external screw thread, be provided with the internal screw thread on the inner wall of enclosing cover 203, enclosing cover 203 passes through screw-thread fit and bottleneck 200 locking seal, can be quick seal through the screw thread to convenient realization sampling back sample liquid is kept apart with the external world. Other structures are also possible, for example, a structure in which the outer cap 203 is engaged with the bottle mouth 200 by a click; or the outer cap 203 and the bottle mouth 200 are properly adjusted according to the specific situation by means of glue melting after being mounted in place, and the specific fixed position relationship or other structural shapes realizing the same function should be easily understood by those skilled in the art, so that the details are not repeated here.
Preferably, the surface of inner cap 202 is flush with finish 200 to improve the overall finish seal.
Further, the inner lid 202 is provided with a stop valve 206 capable of automatically sealing the locking structure, one end of the stop valve 206 is fixed to the inner lid 202, and the other end thereof is disposed to extend away from the inner lid 202.
In a preferred embodiment of the present invention, the outer cap 203 and the inner cap 202 are provided with holes, and the connector can be inserted into the sampling bottle through the holes of the outer cap 203 and the inner cap 202 and through the sealing pad 204. Preferably, the holes of the outer cover 203 and the inner cover 202 are round holes; further, the holes formed in the outer cover 203 and the inner cover 202 are concentric circular holes.
When the connector passes through the outer cap 203, the sealing pad 204 and the inner cap 202 and then is propped against the stop valve 206, the elastic structure in the stop valve 206 is pushed to move towards the bottle interior direction, at the moment, the stop valve 206 is in an open state, so that water sample or gas can enter the sampling bottle through the stop valve 206, and when the connector is pulled out, the stop valve 206 moves towards the bottle mouth 200 due to the elastic effect of the elastic structure, and the stop valve 206 is in a sealed and blocked state.
Specifically, the stop valve 206 includes a valve seat 207, a valve core 208, and a spring, where the valve seat 207 is fixedly installed at a circular hole in the center of the inner cover 202, the valve core 208 is disposed in the valve seat 207, the valve seat 207 is of a cylindrical structure, and sliding grooves 209 are symmetrically formed on the side wall of the valve seat 207.
In addition, in other embodiments of the present invention, the valve seat 207 may have a square cylinder structure or other cylindrical structures. The valve core 208 includes a spring limit post 210 and a valve plate 211 that are integrally connected, wherein the valve plate 211 is disposed near the inner cap 202, and the spring limit post 210 is disposed far from the inner cap 202. The valve plate 211 has a disk shape, and has a diameter slightly smaller than the cylindrical inner diameter of the valve seat 207 or equal to the cylindrical inner diameter of the valve seat 207. At least two stop pins 212 are arranged on the circumference of the valve plate 211, at least two sliding grooves 209 are arranged on the side wall of the valve seat 207, and the stop pins 212 are embedded in the sliding grooves 209 on the side wall of the valve seat 207 and can be arranged in a sliding manner along the sliding grooves 209. Preferably, in order to ensure the smoothness of movement, the stopper pin 212 and the slide groove 209 are provided in two, symmetrically along the center of the valve plate 211.
The spring is sleeved on the spring limit post 210 at one end, the other end is propped against the bottom wall of the valve seat 207, and the effective deformation stroke of the spring is larger than the cylinder height of the valve seat 207, namely, when the stop pin 212 is in the initial state position in the chute 209, the spring is in a compressed state. After the sample bottle is fixed on the sample bottle support 17, after the connector is inserted into the inner cover 202, the valve core 208 is pushed to move towards the direction in the bottle, the stop pin 212 slides to the upper limit along the sliding groove 209, namely the top end of the sliding groove 209, the spring is at the maximum compression amount at the moment, the valve core 208 is at the maximum opening degree at the moment, and water sample or gas can enter or be discharged into the sample bottle through the two sliding grooves 209. When the sampling bottle is taken down from the sampling bottle support 17, the bottle mouth 200 is pulled out by the connector, the valve core 208 moves towards the direction close to the bottle mouth 200 by the elastic force of the spring and finally slides into the lower locking position, at the moment, the valve plate 211 is flush with the inner cover 202, the central round hole on the inner cover 202 is in a closed state, the bottom end of the sliding groove 209 abuts against the stop pin 212 to prevent the stop pin from vertical movement, and the normal acting force, namely the vertical acting force, is applied by the connector inserted into the sampling bottle, so that even if the connector is inserted into the bottle mouth 200 again, the valve core 208 cannot be jacked up again due to the limit effect of the bottom end of the sliding groove 209 on the stop pin 212, and water samples cannot be injected or extracted into the sampling bottle through the round hole on the inner cover 202. And, the spout 209 is provided with locking knot 213 in lower locking position, locking knot 213 is used for carrying out spacingly to the removal of detent 212 in the horizontal direction, prevents that valve plate 211 from receiving non-normal force and making detent 212 break away from lower locking position to realize the automatic sealing locking of sampling bottle, prevent that sampling personnel from falsifying the water sample. Specifically, the chute 209 includes a first arc-shaped slot 2091, a second arc-shaped slot 2092, and a locking slot 2093, wherein the second arc-shaped slot 2092 is located between the first arc-shaped slot 2091 and the locking slot 2093, and the stop pin 212 slides along an arc surface in the first arc-shaped slot 2091 and the second arc-shaped slot 2092, that is, a movement track of the stop pin 212 in the first arc-shaped slot 2091 and the second arc-shaped slot 2092 is arc-shaped. Wherein, when the stop pin 212 is positioned in the first arc-shaped groove 2091, the stop pin 212 is positioned at the initial state position; when the stop pin 212 is positioned at the top end of the first arc-shaped groove 2091, the stop pin 212 is at an upper limit; when the stopper pin 212 is located in the locking groove 2093, the stopper pin 212 is in the lower locking position, and the vertical movement of the stopper pin 212 is limited by the locking groove 2093, that is, the vertical movement of the stopper pin 212 is limited by the top surface of the locking groove 2093, and the valve core 208 cannot be lifted any more. The locking buckle 213 is disposed at the transition position between the locking groove 2093 and the second arc groove 2092, so as to ensure that the locking pin 212 can slide smoothly from the second arc groove 2092 into the locking groove 2093, and cannot easily slide from the locking groove 2093 into the second arc groove 2092, so as to prevent the valve plate 211 from being subjected to non-normal force to easily disengage the locking pin 212 from the lower locking position.
It will be appreciated that, preferably, the surface of the valve plate 211 near the inner cover 202 is further provided with an unlocking groove 214, only a horizontal torsion force is applied after an auxiliary tool is inserted into the unlocking groove 214, the valve core 208 is rotated to disengage the locking pin 212 from the locking buckle 213, so as to disengage from the lower locking position, and then the valve core 208 and the locking pin 212 are restored to the initial state position by applying a corresponding external force to the unlocking groove 214 under the combined action of the spring force, so that the inner cover 202 with the locking valve 206 can be reused. For example, the unlocking groove 214 is a bar-shaped groove, and the valve plate 211 is rotated after the small-sized straight screwdriver is inserted into the unlocking groove 214.
In addition, preferably, the outer cap 203 is provided with a stop anti-counterfeiting ring 205, and if the outer cap 203 is unscrewed, the stop anti-counterfeiting ring 205 is separated from the container and cannot be restored, so that an opening trace is left.
In addition, preferably, a unique code identifier or an electronic label is marked on the body of each sampling bottle, and the code is in the form of a bar code or a two-dimensional code. When the sampling bottle is filled into the corresponding bottle position of the water quality on-line monitoring sampling device, the matched scanning equipment (also can be a mobile phone preloaded with professional sampling software) scans and writes the code into a sampling system in the cloud server, and after the filled empty bottle collects a water sample, the control system 11 at the site end remotely reports sampling information (such as sampling time, sampling point position, sampling amount, sample bottle code and the like) to the cloud server. When the water sample collected by the field end is retrieved from the laboratory, the laboratory can only scan and acquire the sampling bottle code and can not acquire other sampling information, after the water sample is detected, the laboratory remotely reports the sampling bottle code and corresponding detection data to the cloud server, and the cloud server correlates the sampling information and the corresponding detection data through the sampling bottle code to form a complete data chain. Therefore, the information isolation can be carried out on the sampling link and the testing link, the general sampling personnel cannot obtain the testing result of the sample taken by the sampling link, the laboratory detection personnel cannot obtain the sampling information of the sample to be detected, and the false behavior aiming at the sample is effectively prevented through the control of the process of 'sampling, testing and separating'.
It will be appreciated that in a modified embodiment of the present invention, as shown in fig. 10 to 13, the stop valve 206 may also have a structure in which the stop valve 206 is substantially the same as that in the above-described preferred embodiment, except that the automatic sealing stop structure of the spool 208 is different. Specifically, in the present modified embodiment, the stop valve 206 includes a valve seat 207, a valve core 208, and a spring, where a first limiting groove 2071 and a second limiting groove 2072 are radially formed on the valve seat 207 in a penetrating manner, and the first limiting groove 2071 and the second limiting groove 2072 are arranged up and down. The valve core 208 comprises a spring limit post 210 and a valve plate 211 which are integrally connected, two elastic support legs 215 are symmetrically arranged on the valve plate 211, and the two elastic support legs 215 are positioned between the spring limit post 210 and the valve plate 211. In the process of inserting the connector into the bottle mouth 200 and pushing the valve core 208 to move, the elastic support legs 215 are not elastically deformed, and when the valve core 208 moves under the action of spring force, the two elastic support legs 215 can be folded, and then the two elastic support legs 215 are respectively subjected to initial state position limitation, upper limit limitation and lower lock position limitation through the first limit groove 2071 and the second limit groove 2072. Specifically, when the connector is not inserted into the sampling bottle, the two elastic legs 215 are in the initial state position, at which time the springs are primarily compressed, the bottom ends of the expanding arms of the two elastic legs 215 abut against the bottom surface of the first limiting groove 2071; when the connector is inserted into the bottle mouth 200 and pushes the valve core 208, the valve core 208 integrally moves towards the bottom wall of the valve seat 207, when the top ends of the unfolding arms of the two elastic support legs 215 are abutted against the top surface of the first limiting groove 2071, the two elastic support legs 215 are in upper limit, the spring is in the maximum compression amount, the valve core 208 is in the maximum opening degree, and water sample or gas can enter or be discharged into the sampling bottle through the first limiting groove 2071 and the second limiting groove 2072; when the joint is pulled out, the valve core 208 integrally moves towards a direction away from the bottom wall of the valve seat 207 under the action of the elastic force of the spring and finally slides into the lower locking position, in the process of moving from the first limiting groove 2071 to the second limiting groove 2072, the unfolding arms of the two elastic support legs 215 are extruded to be folded, after the two elastic support legs 215 enter the second limiting groove 2072, the two unfolding arms are unfolded again and limited in the second limiting groove 2072, namely, when the two elastic support legs 215 move to the lower locking position, the second limiting groove 2072 plays a role in limiting the two elastic support legs 215, at the moment, the valve plate 211 is flush with the inner cover 202, a central round hole on the inner cover 202 is in a closed state, and water sample cannot be injected or extracted into the sampling bottle through the round hole on the inner cover 202. In addition, as a preferred embodiment, the bottom end of the unfolding arm of the elastic leg 215 is designed to be a cambered surface or an inclined surface structure, so that smooth transition between the first limiting groove 2071 and the second limiting groove 2072 is facilitated, and the top end of the unfolding arm is designed to be a planar structure, so that the unfolding arm is convenient to prop against the top surface of the first limiting groove 2071 or the top surface of the second limiting groove 2072, and the current limiting state is prevented from easily sliding out. In addition, when the elastic support leg 215 is at the upper limit, the top end of the expanding arm of the elastic support leg 215 may not abut against the top surface of the first limit groove 2071, and at this time, the spring may be at the maximum compression amount, so that the upper limit limiting effect is achieved through the spring. When the elastic leg 215 is in the lower locking position, the valve plate 211 is flush with the inner cap 202, and the tip of the deployment arm of the elastic leg 215 abuts on the top surface of the second stopper groove 2072. It will be appreciated that the stop valve 206 of the present variant embodiment is disposable without using an auxiliary tool, and once the valve core 208 is forcibly pushed, the unfolding arms of the two elastic legs 215 are damaged under the limiting action of the second limiting groove 2072, and when the bottle cap is opened by the later water sample detection, whether the water sample is tampered can be determined by checking the structural integrity of the elastic legs 215. If the inner cap 202 with the stop valve 206 needs to be reused, the two elastic legs 215 need to be inserted into the unlocking groove 214 on the valve plate 211 by an auxiliary tool and only a horizontal torsion force is applied, so that the two elastic legs 215 are rotated out of the second limiting groove 2072, and then the corresponding external force is applied to the unlocking groove 214, and under the combined action of the spring force, the elastic legs 215 return to the initial state position of the first limiting groove 2071. It will be appreciated that the number of the elastic legs 215 may be three, four or more, and the plurality of elastic legs 215 are uniformly distributed between the valve plate 211 and the spring stopper post 210.
It will be appreciated that the sampling bottle of the present invention may be used as a single product and may be applied to other on-line monitoring sampling devices for water quality.
As shown in fig. 14 to 16, the bottom of the sampling bottle support 17 is a water tray 171, the water tray 171 is provided with a drain hole, and in an abnormal situation, the water sample overflowed from the sampling bottle can be discharged through the drain hole on the water tray 171. The sampling bottle support 17 is provided with a plurality of sampling bottle mounting positions, each sampling bottle mounting position is provided with an upper mounting assembly 173 and a lower mounting assembly 172, wherein the upper mounting assembly 173 is used for fixing the upper end of a sampling bottle and injecting or extracting gas into the sampling bottle, and the lower mounting assembly 172 is used for fixing the lower end of the sampling bottle and injecting or extracting water sample into the sampling bottle. The lower mounting assembly 172 comprises a lower limiting clamping sleeve 1721 and a water sample connector 1722, a round hole is formed in the bottom plate of the sampling bottle support 17, the lower limiting clamping sleeve 1721 is located on the bottom plate of the sampling bottle support 17, and the water sample connector 1722 penetrates through the round hole and then is locked and fixed with the lower limiting clamping sleeve 1721 through threads. The insertion end of the water sample connector 1722 is a sharp structure, the tail end of the water sample connector is a pagoda connector 1724, and a water outlet hole 1723 is formed in the side wall of the insertion end of the water sample connector 1722. The outer wall of the middle section of the water sample joint 1722 is provided with a limit nut 1725, the limit nut 1725 and the pagoda joint 1724 are integrally formed, an annular groove 1726 is formed in the surface of the limit nut 1725 close to the insertion end, and a sealing ring is installed in the annular groove 1726 to prevent water leakage at the position where the water sample joint 1722 passes through the bottom plate of the sampling bottle support 17. Wherein, the sharp structure of the insertion end of the water sample connector 1722 is convenient for piercing the sealing pad 204, and the pagoda connector 1724 is used for connecting with the water delivery hose, when the water sample connector 1722 is locked and fixed with the lower limiting clamping sleeve 1721, the limiting nut 1725 is tightly attached to the lower surface of the bottom plate of the sampling bottle support 17. After the sampling bottle is put into the bottle position, the water sample connector 1722 pierces the sealing pad 204 and enters the bottle, and at the moment, the lower edge of the water outlet hole 1723 on the side wall of the water sample connector 1722 is higher than the sealing pad 204 and is flush with the inner cover 202, so that the water sample can not leak from the lower part of the sealing pad 204 when being injected, and the water sample in the bottle can be completely emptied without residue when being discharged.
The upper mounting assembly 173 comprises an upper limiting clamping sleeve 1727, an air connector 1728, a spring and a plate penetrating clamping sleeve 1729, a round hole is formed in the top plate of the sampling bottle support 17, the plate penetrating clamping sleeve 1729 is embedded into the round hole, and an upper folded edge of the plate penetrating clamping sleeve 1729 is fixed with the support top plate through a screw. The air connector 1728 is in a round tube shape, the upper end of the air connector is a round head handle, the center of the air connector is a vent pipe, the lower end of the air connector is in a sharp structure so as to conveniently pierce the sealing gasket 204, and the air connector 1728 passes through the threading clamping sleeve 1729 and then is locked and fixed with the upper limiting clamping sleeve 1727 through threads. The spring is installed between the upper limit clamping sleeve 1727 and the bracket top plate, specifically, the upper end of the spring is sleeved on the threading clamping sleeve 1729, the lower end of the spring is propped against the upper surface of the upper limit clamping sleeve 1727, the spring is used for pressing the upper limit clamping sleeve 1727 so that the air connector 1728 is installed in place, the spring can be compressed through lifting the round head handle of the air connector 1728, and at the moment, the air connector 1728 is pulled out of the sampling bottle, so that the operation of loading and unloading the sampling bottle is facilitated.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A sampling bottle is characterized in that,
the sampling bottle is provided with at least one bottle opening (200) communicated with a bottle cavity, a boss (201) is arranged in the bottle opening (200), an inner cover (202) is arranged on one side, close to the bottle opening (200), of the boss (201), an outer cover (203) is further assembled outside the bottle opening (200), the outer cover (203) is locked and sealed with the bottle opening (200), and through holes are formed in the outer cover (203) and the inner cover (202);
the automatic sealing device further comprises a stop valve (206) with an automatic sealing and locking structure, one end of the stop valve (206) is fixed at the through hole of the inner cover (202), and the other end which is oppositely arranged is arranged to extend away from the inner cover (202);
stop valve (206) include disk seat (207), case (208) and spring, disk seat (207) fixed mounting is on inner cover (202), case (208) set up in disk seat (207), case (208) are including connecting spring spacing post (210) and valve plate (211) as an organic whole, valve plate (211) are close to inner cup (202) setting, one end cover of spring is established on spring spacing post (210), and the other end supports and leans on the diapire of disk seat (207), set up two at least stop pins (212) on the circumference of valve plate (211), set up two at least spouts (209) on the both sides wall of disk seat (207), stop pin (212) embedding in spout (209) and slidable setting in spout (209).
2. The sampling bottle according to claim 1, wherein the stop valve (206) comprises a valve seat (207), a valve core (208) and a spring, the valve seat (207) is fixedly arranged at a round hole of the inner cover (202), the valve seat (207) is of a cylindrical structure, the valve core (208) is arranged in the valve seat (207), the valve core (208) comprises a spring limit column (210) and a valve plate (211) which are connected into a whole, the valve plate (211) is arranged close to the inner cover (202), one end of the spring is sleeved on the spring limit column (210), the other end of the spring is abutted against the bottom wall of the valve seat (207), a plurality of elastic supporting feet (215) which are uniformly distributed are arranged between the valve plate (211) and the spring limit column (210), a first limit groove (2071) and a second limit groove (2072) which penetrate through along the radial direction are arranged on the valve seat (207), and the first limit groove (2071) and the second limit groove (2072) are distributed up and down.
3. The sampling bottle of claim 1, wherein the bottle is further characterized by,
the bottom end of the sliding groove (209) is also provided with a locking buckle (213) for preventing the stop pin (212) from being separated from the lower locking position.
4. The sampling bottle of claim 1, wherein the bottle is further characterized by,
spout (209) are including first arc wall (2091), second arc wall (2092) and locking groove (2093), second arc wall (2092) are located between first arc wall (2091) and locking groove (2093), when stopping round pin (212) are in initial state position, stopping round pin (212) are located first arc wall (2091), when stopping round pin (212) are in the upper limit, stopping round pin (212) are located the top of first arc wall (2091), when stopping round pin (212) are in down locking position, stopping round pin (212) are located locking groove (2093).
5. The sampling bottle of claim 2, wherein the bottle is further characterized by,
when the elastic support leg (215) is in the initial state position, the spring is compressed, the bottom end of the unfolding arm of the elastic support leg (215) is abutted against the bottom surface of the first limit groove (2071), the connector is inserted into the bottle mouth (200) and pushes the valve core (208), when the bottom end of the unfolding arm of the elastic support leg (215) is abutted against the top surface of the first limit groove (2071) or the spring is in the maximum compression amount, the elastic support leg (215) is in the upper limit, the stop valve (206) is in the open state, and after the connector is pulled out, the elastic support leg (215) slides into the second limit groove (2072) from the first limit groove (2071) under the action of the resilience of the spring and is limited, the elastic support leg (215) is in the lower locking position, and the valve plate (211) is flush with the inner cover (202).
6. The sampling bottle of claim 5, wherein the bottle comprises a bottle cap,
the upper end face of the expansion arm of the elastic support leg (215) contacted with the valve seat (207) is of a plane structure, and the lower end face contacted with the valve seat (207) is of an inclined plane or cambered surface structure.
7. A sampling bottle according to claim 1 or 2, wherein,
the surface of the valve plate (211) close to the inner cover (202) is also provided with an unlocking groove (214).
8. The sampling bottle according to claim 1 to 6,
and a sealing gasket (204) for sealing is further arranged between the inner cover (202) and the outer cover (203), when the outer cover (203) is locked with the bottle mouth (200), the outer cover (203) tightly presses the sealing gasket (204) on the inner cover (202) and the bottle mouth (200), and the sealing gasket (204) is made of elastic soft materials.
9. The sampling bottle according to claim 1 to 6,
the outer cover (203) is provided with a stop anti-counterfeiting ring (205).
10. An on-line monitoring and sampling device for water quality, which is characterized in that a sampling bottle as claimed in any one of claims 1 to 9 is adopted.
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| CN202010526044.3A CN113804844B (en) | 2020-06-11 | 2020-06-11 | Sampling bottle and water quality on-line monitoring sampling device adopting same |
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| CN202010526044.3A CN113804844B (en) | 2020-06-11 | 2020-06-11 | Sampling bottle and water quality on-line monitoring sampling device adopting same |
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| CN113804844B true CN113804844B (en) | 2024-03-15 |
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