CN114690248A - Anti-counterfeiting detection device and sampling device - Google Patents

Abstract

The invention discloses an anti-counterfeiting detection device and a sampling device, which are used for detecting whether a sealing cover covered on a sampling container is opened or not. The anti-counterfeiting detection device is arranged in the sealing cover and is provided with at least one telescopic movable part, and when the sealing cover is opened under an unauthorized condition, a detection signal is interrupted, so that the failure of sample liquid in the sampling container is judged.

Description

Anti-counterfeiting detection device and sampling device

Technical Field

The invention relates to the technical field of environmental monitoring, in particular to an anti-counterfeiting detection device and a sampling device.

Background

In recent years, along with the continuous development of social economy and urban scale expansion of China, more toxic and harmful substances are unscrupulously discharged into rivers, lakes and oceans, and the lives of people and the safety and self health of drinking water are seriously harmed. At present, the environmental supervision department basically adopts a manual sampling mode, and has the problems of limited sampling frequency, large investment of manpower and material resources, larger potential safety hazard, long sampling period and the like, and the water quality sample collection mode becomes a short board for restricting the environmental monitoring development and evaluation.

In the water quality monitoring work, the authenticity and representativeness of a water sample are directly related to the analysis result of water quality, accurate water environment pollution information is obtained, the water quality monitoring system is not only dependent on the quality control of a water quality monitoring laboratory, but also has close relation with the source water guarantee and the quality guarantee of each link of water quality monitoring sampling. In a certain sense, the authenticity and the effectiveness of the sampled water quality directly influence the influence on the water quality monitoring result. In the operation of real monitoring, a plurality of actions of environment monitoring data counterfeiting are exploded, for example: diluting the sampled source, and changing the sampled source liquid without authorization. The problem in the field of water quality monitoring is always how to ensure the authenticity and representativeness of a water sample to be detected after sampling.

Disclosure of Invention

The invention provides an anti-counterfeiting detection device and a sampling device, and aims to solve the technical problem that the existing sampling device cannot guarantee the authenticity and effectiveness of sample liquid in a sampling container after sampling.

According to one aspect of the invention, the anti-counterfeiting detection device is used for detecting whether a sealing cover covered on a sampling container is opened or not, and comprises at least one telescopic movable part and a protruding part arranged on the sampling container, wherein the movable part is arranged in the sealing cover, and the movable part protrudes out of the sealing cover and extends towards the sampling container and is arranged in separable contact with the protruding part of the sampling container.

The anti-counterfeiting detection device comprises a detection circuit arranged in the sealing cover and a light touch switch for controlling the on-off of the detection circuit, wherein the two ends of the movable part respectively abut against the light touch switch and the sampling container by utilizing the extrusion force between the sealing cover and the sampling container in a covering state, and the light touch switch is triggered to enable the detection circuit to form a closed loop, so that the sealing cover and the sampling container are judged to be in the covering state; when the sealing cover is loosened or opened, the movable part is separated from the light touch switch, so that the detection circuit is disconnected, and the sealing cover and the sampling container are judged to be in an opening state.

Furthermore, the anti-counterfeiting detection device also comprises a communication module which is connected with the detection circuit and is used for transmitting detection information.

Furthermore, the anti-counterfeiting detection device also comprises a display module which is connected with the detection circuit and used for displaying the detection information.

Further, the movable part comprises a pressure transmission shaft, and the two ends of the pressure transmission shaft respectively abut against the tact switch and the sampling container by utilizing the extrusion force between the sealing cover and the sampling container in the covering state.

Furthermore, the movable part also comprises a spring sleeved on the pressure transmission shaft, the top end of the spring is propped against the sealing cover, and the bottom end of the spring is propped against the pressure transmission shaft.

Further, the movable part still including install in sealed lid and with the trigger ball of pressure transmission shaft butt, sealed cover and be equipped with the through-hole that the aperture is less than the diameter of trigger ball on the bottom surface of the contact surface of sampling container to make trigger ball follow the through-hole protrudingly.

Furthermore, the sampling device also comprises a disassembly-preventing mechanism which is arranged in the sealing cover and is movably connected with the sampling container.

Furthermore, the anti-dismounting mechanism comprises a lifting locking unit arranged in the sealing cover and a limiting disc which covers the container opening of the sampling container and is movably connected with the movable end of the lifting locking unit, a limiting groove is arranged on the bottom surface of the limiting disc along the radial direction, and a limiting block matched with the limiting groove is arranged on the inner side wall surface of the container opening of the sampling container.

According to another aspect of the invention, the sampling device comprises a sampling container, a sealing cover and the anti-counterfeiting detection device.

The invention has the following beneficial effects:

the anti-counterfeiting detection device is arranged in the sealing cover and is provided with at least one telescopic movable part, and after the sealing cover is opened, the movable part extends towards the sampling container and protrudes out of the contact surface of the sealing cover and the sampling container, so that the sealing cover is judged to be in an opening state, and the sample liquid in the sampling container is judged to be invalid.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a counterfeit detection apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a counterfeit detection apparatus according to another embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a counterfeit detection apparatus according to another embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a counterfeit detection apparatus according to another embodiment of the present invention;

FIG. 5 is a schematic structural view of a tamper-evident mechanism in accordance with a preferred embodiment of the present invention;

FIG. 6 is a schematic structural view of a tamper-evident mechanism in accordance with a preferred embodiment of the present invention;

FIG. 7 is a schematic structural view of a tamper-evident mechanism in accordance with a preferred embodiment of the present invention;

FIG. 8 is a schematic structural view of a tamper-evident mechanism in accordance with a preferred embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a sampling device according to a preferred embodiment of the present invention;

FIG. 10 is a schematic structural view of a sampling device according to a preferred embodiment of the present invention;

FIG. 11 is an overall schematic view of a sampling device according to a preferred embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a use state of the sampling device according to the preferred embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a sampling device according to another embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a switching assembly of a sampling device according to another embodiment of the present invention;

FIG. 15 is an overall schematic view of a sampling device according to a preferred embodiment of the present invention;

FIG. 16 is a diagram of the sample introduction state of the sampling device according to the preferred embodiment of the present invention;

FIG. 17 is a view of the sealed state of the sampling device of the preferred embodiment of the present invention;

fig. 18 is a schematic structural diagram of a sampling device according to another embodiment of the invention.

Illustration of the drawings:

1. a sampling container; 2. a sealing cover; 3. a top cover; 4. a first channel; 5. a second channel; 6. a lifting drive unit; 7. a fixing plate; 8. a piston; 9. a power supply module; 10. a rotation driving unit; 11. a switching sheet; 12. a cover plate; 13. a control panel; 14. a pressure transmission shaft; 15. a spring; 16. a tact switch; 17. a trigger ball; 18. a balancing weight; 19. a pressure measuring module; 20. a pressure measurement cavity; 21. a protrusion; 22. a limiting block; 23. a limiting groove; 24. an overflow channel; 25. an anti-counterfeiting magnetic strip; 26. a ferromagnetic pillar; 27. a sensing circuit; 28. a magnetic induction switch; 29. a lift locking unit; 30. a pin rod; 31. a pin hole; 32. a limiting disc.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

FIG. 1 is a schematic structural diagram of a counterfeit detection apparatus according to a preferred embodiment of the present invention; FIG. 2 is a schematic structural diagram of a counterfeit detection apparatus according to another embodiment of the present invention; FIG. 3 is a schematic structural diagram of a counterfeit detection apparatus according to another embodiment of the present invention; FIG. 4 is a schematic structural diagram of a counterfeit detection apparatus according to another embodiment of the present invention; FIG. 5 is a schematic structural view of a tamper-evident mechanism in accordance with a preferred embodiment of the present invention; FIG. 6 is a schematic structural view of a tamper-evident mechanism in accordance with a preferred embodiment of the present invention; FIG. 7 is a schematic structural view of a tamper-evident mechanism in accordance with a preferred embodiment of the present invention; FIG. 8 is a schematic structural view of a tamper-evident mechanism in accordance with a preferred embodiment of the present invention; FIG. 9 is a schematic structural diagram of a sampling device according to a preferred embodiment of the present invention; FIG. 10 is a schematic structural view of a sampling device according to a preferred embodiment of the present invention; FIG. 11 is an overall schematic view of a sampling device according to a preferred embodiment of the present invention; FIG. 12 is a schematic structural diagram of a use state of the sampling device according to the preferred embodiment of the present invention; FIG. 13 is a schematic structural diagram of a sampling device according to another embodiment of the present invention; FIG. 14 is a schematic structural diagram of a switching assembly of a sampling device according to another embodiment of the present invention; FIG. 15 is an overall schematic view of a sampling device according to a preferred embodiment of the present invention; FIG. 16 is a diagram of the sample introduction state of the sampling device according to the preferred embodiment of the present invention; FIG. 17 is a view of the sealed state of the sampling device of the preferred embodiment of the present invention; fig. 18 is a schematic structural diagram of a sampling device according to another embodiment of the invention.

As shown in fig. 1-2, the anti-counterfeit detection device of the present embodiment is used for detecting whether the sealing cover 2 covering the sampling container 1 is opened, and the anti-counterfeit detection device includes at least one flexible movable portion and a protrusion 21 disposed on the sampling container 1, wherein the movable portion is installed in the sealing cover 2, and the movable portion protrudes out of the sealing cover 2 and extends toward the sampling container 1, and is disposed in separable contact with the protrusion 21 of the sampling container 1. The anti-counterfeiting detection device is arranged in the sealing cover 2 and is provided with at least one telescopic movable part, when the sealing cover 2 is opened, the movable part extends towards the sampling container 1 and protrudes out of the contact surface of the sealing cover 2 and the sampling container 1, so that the sealing cover 2 is judged to be in an opening state, and the sample liquid in the sampling container 1 is judged to be invalid.

The anti-counterfeiting detection device also comprises a detection circuit arranged in the sealing cover 2 and a light touch switch 16 used for controlling the on-off of the detection circuit, two ends of the movable part respectively prop against the light touch switch 16 and the sampling container 1 by utilizing the extrusion force between the sealing cover 2 and the sampling container 1 in a covering state, and the light touch switch 16 is triggered to form a closed loop by the detection circuit, so that the sealing cover 2 and the sampling container 1 are judged to be in the covering state; the movable part is separated from the tact switch 16 in the open state, so that the detection circuit is disconnected, and the sealing cover 2 and the sampling container 1 are judged to be in the open state. When the sealing cover 2 and the sampling container 1 are in a covering state, the movable part is pressed to be upwards compressed and abutted against the tact switch 16. When the sealing cover 2 is loosened, the movable portion is pressed to be reduced to be protruded downward and separated from the tact switch 16.

In another embodiment, as shown in fig. 3-4, the anti-counterfeit detection device comprises an induction circuit 27 disposed in the sealing cover 2, a permanent magnet disposed on the sampling container 1, and a magnetic induction switch 28 disposed in the sealing cover 2 and corresponding to the permanent magnet for controlling the on/off of the induction circuit 27. According to the anti-counterfeiting detection device, the induction circuit 27 is arranged in the sealing cover 2, the induction circuit 27 is provided with the magnetic induction switch 28 to control on and off, the permanent magnet is arranged on the sampling container 1, when the sealing cover 2 is covered on the sampling container 1, the position of the permanent magnet on the sampling container 1 corresponds to that of the magnetic induction switch 28 in the sealing cover 2, so that the magnetic induction switch 28 is closed under the action of the magnetic field of the permanent magnet, the induction circuit 27 is communicated, the sealing cover 2 is judged to be in a covered state, when the sealing cover 2 is unscrewed and rotates for a certain angle or is separated from the sampling container 1, the relative position between the magnetic induction switch 28 and the permanent magnet is changed, the magnetic induction switch 28 is separated from the magnetic field of the permanent magnet and is disconnected, the induction circuit 27 is disconnected, and the sealing cover 2 is judged to be in a loosened state or an opened state; or the magnetic induction switch 28 is switched off under the action of the magnetic field of the permanent magnet, so that the induction circuit 27 is switched off, and the sealing cover 2 is judged to be in a covering state, when the sealing cover 2 is unscrewed and rotates for a certain angle or is separated from the sampling container 1, the relative position between the magnetic induction switch 28 and the permanent magnet is changed, the magnetic induction switch 28 is separated from the magnetic field of the permanent magnet and is switched on, so that the induction circuit 27 is communicated, and the sealing cover 2 is judged to be in a loosening state or an opening state, so that the sample liquid in the sampling container 1 is judged to be invalid. In addition, the sealing cover 2 is in threaded matching connection with the sampling container 1, the sealing cover 2 is opened or screwed after being rotated reversely for a fixed number of turns, and in the rotating process of the sealing cover 2, the state of the magnetic induction switch 28 is changed, so that the number of turns of the sealing cover 2 is judged according to the number of times of turning on and off the magnetic induction switch 28, and the unscrewing degree of the sealing cover 2 or whether the sealing cover 2 is screwed completely is judged.

The permanent magnet is attached to the inner wall surface of the container mouth of the sampling container 1, the outer wall surface of the container mouth of the sampling container 1, and/or the protrusion 21 of the sampling container 1 that contacts the sealing cap 2. The permanent magnets comprise a security magnetic stripe 25 and/or a strong magnetic column 26. Optionally, the inner side wall surface of the container opening of the sampling container 1 is provided with a groove for mounting the anti-counterfeiting magnetic strip 25. Alternatively, the sampling container 1 may be provided with a protrusion 21 contacting the sealing cap 2 on the outside of the container mouth, and the strong magnetic column 26 may be attached to the protrusion 21.

As shown in fig. 1-2, the anti-counterfeit detection device further includes a communication module connected to the detection circuit for transmitting detection information. The communication module transmits the information of the disconnection of the detection circuit to the remote management platform, so that whether the sealing cover 2 is opened or not is known. Optionally, the anti-counterfeiting detection device further comprises a display module connected with the detection circuit and used for displaying the detection information. Whether the sealing cover 2 is opened or not is known according to the display of the display module. Optionally, the anti-counterfeiting detection device further comprises a sound module connected with the detection circuit and used for identifying the detection information. Whether the sealing cover 2 is opened or not is known according to the voice or the ring of the sound module. In this embodiment, the electronic components such as the detection circuit and the communication module are provided on the control board 13 inside the sealing cover 2. The sealing cover 2 is also internally provided with a power supply module 9 connected with a control panel 13.

The communication module is positioned in an area which is positioned above the liquid level or near the liquid level and can transmit signals after being sampled on the sampling container 1. In this embodiment, after the sampling is completed, the communication module is located above the liquid level or not lower than 25 cm below the liquid level to transmit the sampling signal to the remote management platform. Optionally, the communication module includes a 3G/4G/5G module, an NB-IOT module, an eMTC module, a LoRa module, or a Sigfox module, so that the detection parameters can be remotely transmitted to the remote management platform in real time; or the communication module is an NFC module, a Bluetooth module, a Wi-fi module or a Zigbee module, and the management terminal can be brought to the site by a worker and then is in wireless connection with the communication module, so that monitoring data stored in the control module can be read wirelessly. In addition, in other embodiments of the present invention, the communication module may be omitted, and after the sampling container 1 is fished out from the water environment, the management terminal may be used to directly read the monitoring data in the control module through the interface.

The movable part comprises a pressure transmission shaft 14, and the two ends of the pressure transmission shaft 14 respectively abut against the tact switch 16 and the sampling container 1 by utilizing the extrusion force between the sealing cover 2 and the sampling container 1 in a covering state. When the sealing cover 2 is loosened, the pressure transmission shaft 14 moves downward by its own weight to be separated from the tact switch 16.

The movable part also comprises a spring 15 sleeved on the pressure transmission shaft 14, the top end of the spring 15 is propped against the sealing cover 2, and the bottom end of the spring 15 is propped against the pressure transmission shaft 14. When the sealing cover 2 is loosened, the pressure transmission shaft 14 is rapidly separated from the tact switch 16 by its own weight and the elastic restoring force of the spring 15.

The movable part also comprises a trigger ball 17 which is arranged in the sealing cover 2 and is abutted against the pressure transmission shaft 14, and a through hole with the aperture smaller than the diameter of the trigger ball 17 is arranged on the contact surface of the sealing cover 2 and the sampling container 1 so as to enable the trigger ball 17 to protrude from the through hole. When the sealing cover 2 is covered, the trigger ball 17 is extruded upwards by the sampling container 1, and then the pressure transmission shaft 14 is driven to extrude upwards and abut against the light touch switch 16, so that the detection circuit is closed. When the sealing cover 2 is loosened, the trigger ball 17 is released downwards, so that the pressure transmission shaft 14 moves downwards to be separated from the tact switch 16, and the detection circuit is disconnected.

As shown in fig. 1 and 2, the sealing cover 2 includes an inner cover covering the sampling container 1 and an outer cover connected with the inner cover, the anti-counterfeiting detection device is installed in the outer cover, and a sliding groove for the flexible movement of the movable part is arranged between the inner cover and the outer cover. As shown in the drawings, in the present embodiment, the trigger ball 17 is mounted at the bottom of the sliding chute, and a through hole for the trigger ball 17 to protrude is formed at the bottom of the sliding chute. The top end of the pressure transmission shaft 14 penetrates through the sliding groove and abuts against the light touch switch 16, and the bottom end of the pressure transmission shaft 14 abuts against the trigger ball 17. The top end of the chute is provided with a top plate for abutting against the top end of the spring 15. The pressure transmission shaft 14 is provided with a bottom plate abutting against the bottom end of the spring 15. Through utilizing the extrusion force between sealed lid 2 and the sampling container 1 under the state of closing the lid, make pressure transmission shaft 14 both ends respectively top and touch switch 16 and trigger ball 17 on, make trigger ball 17 outstanding support on sampling container 1, trigger ball 17 and sampling container 1 are point and face contact, consequently are more sensitive to the not hard up of sealed lid 2. As shown, in another embodiment, the pressure transmission shaft 14 is inserted into the sliding groove. The bottom of the chute is provided with a through hole. The bottom end of the pressure transmission shaft 14 is provided with a stop part for preventing the pressure transmission shaft 14 from falling out of the chute and a protruding ball connected with the stop part and used for protruding from the through hole. By utilizing the extrusion force between the sealing cover 2 and the sampling container 1 in the closed state, the top end of the pressure transmission shaft 14 penetrates through the sliding groove and abuts against the light touch switch 16, and the protruding ball at the bottom end of the pressure transmission shaft 14 penetrates through the sliding groove and abuts against the sampling container 1, so that the detection circuit forms a closed loop.

As shown in fig. 5-8, the anti-counterfeit detection device further comprises a tamper-proof mechanism installed in the sealing cover 2 and movably connected with the sampling container 1. The anti-disassembly mechanism comprises a lifting locking unit 29 arranged in the sealing cover 2 and a limiting disc 32 which covers the container opening of the sampling container 1 and is movably connected with the movable end of the lifting locking unit 29, a limiting groove 23 is arranged on the bottom surface of the limiting disc 32 along the radial direction, and a limiting block 22 matched with the limiting groove 23 is arranged on the inner side wall surface of the container opening of the sampling container 1. At least one pin rod 30 is installed on the movable end of the lifting locking unit 29, a pin hole 31 matched with the pin rod 30 is formed in the limiting disc 32, the pin rod 30 is driven to descend by the lifting locking unit 29 to be inserted into the pin hole 31 to be connected with the limiting disc 32, and therefore circumferential limiting is conducted on the sealing cover 2 through the limiting disc 32. The plurality of limiting blocks 22 are uniformly arranged along the circumferential direction of the container opening of the sampling container 1. The stopper groove 23 is arranged in the radial direction of the stopper disk 32. When the sealing cover 2 covers the sampling container 1, the limiting groove 23 on the limiting disc 32 is matched with the limiting block 22 on the sampling container 1, the pin rod 30 is driven to descend by controlling the lifting locking unit 29 to be inserted into the pin hole 31 of the limiting disc 32 to be connected with the limiting disc 32, so that the sealing cover 2 is limited circumferentially by the limiting disc 32, and the sealing cover 2 cannot rotate circumferentially and be unscrewed due to the matching of the limiting groove 23 and the limiting block 22, so that the sealing cover 2 in a covering state is locked and fixed; when the sealing cover 2 needs to be opened to detect the sample liquid in the sampling container 1, the lifting locking unit 29 is controlled to drive the pin rod 30 to ascend and move out of the pin hole 31 to be separated from the limiting disc 32, then the sealing cover 2 is rotated to be separated from the sampling container 1, and finally the limiting disc 32 is taken down to perform sampling detection.

In conclusion, through the anti-fake detection device who sets up between sampling container 1 and sealed lid 2, can cross to sealed lid 1 open carry out effectual discernment and record, with this can be convenient learn sampling container 1 after the sampling is accomplished, sealed lid 2 is with the separation of sampling container 1, thereby can judge whether the inside appearance liquid of sampling container 1 is opened and is taken effect, through the mechanism of preventing tearing open that is used for with sampling container 1 swing joint in sealed lid 2, after the sampling has been dug out, open sealed lid 2 replacement, dilute the possibility of appearance liquid, with this authenticity of guaranteeing the inside appearance liquid of sampling container 1, validity, representativeness.

As shown in fig. 9-18, the sampling device of this embodiment includes the above-mentioned anti-counterfeit detection device. The sampling device of this embodiment includes sampling container 1, sealed lid 2 and above-mentioned anti-fake detection device. Whether the sampling container 1 is separated from the sealing cover 2 after sampling can be automatically identified through the anti-counterfeiting detection device arranged between the sealing cover 2 and the sampling container 1, so that the effectiveness of the sample liquid in the sampling container 1 is judged; can avoid sampling container 1 to be opened the back through anti-fake detection device and to the fake of appearance liquid, ensure that the sampling is accomplished the back, the appearance liquid of sampling container 1 inside can not influenced by external factor, for example: replacement, dilution and the like, and the authenticity of the sample liquid is ensured from the source, so that the validity of water quality monitoring data is ensured.

As shown in fig. 9-14, the sampling device of the present embodiment includes a sampling container 1, a sealing cover 2 covering the sampling container 1, a communication channel formed on the sealing cover 2, and the communication channel is communicated with an inner cavity of the sampling container 1; the sealing cover 2 comprises a switching component which is fixed in the sealing cover and arranged along the path of the communication channel, and the switching component and the communication channel can be separated or communicated; still including setting up in sampling container 1, arrange the anti-fake detection device between sampling container 1 and sealed lid 2, anti-fake detection device includes at least one telescopic movable part, is equipped with protruding portion 21 on the sampling container 1, and the protruding sealed lid 2 of movable part extends towards sampling container 1, and the setting of the separable contact of protruding portion 21 with sampling container 1. In the present embodiment, the protrusion 21 is located outside the container mouth of the sampling container 1 and below the movable portion. According to the sampling device provided by the invention, sample liquid enters the sampling container 1 through the communicating channel arranged on the sealing cover 2; the sampling channel is extremely conveniently isolated or connected through the switching assembly arranged along the sampling channel, sampling of the sampling container 1 according to requirements is realized, working condition requirements of different scenes are met, and the sampling channel is isolated and sealed after sampling is finished, so that the sealing performance of the sampling container 1 is ensured; whether the sampling container 1 is separated from the sealing cover 2 after sampling can be automatically identified through the anti-counterfeiting detection device arranged between the sealing cover 2 and the sampling container 1, so that the effectiveness of the sample liquid in the sampling container 1 is judged; with this, through the switching module who arranges along sampling channel, conquered from the counterfeit of appearance liquid of kind channel, can avoid sampling container 1 to be opened the counterfeit of appearance liquid through anti-fake detection device, guaranteed that the sampling is accomplished the back, sampling container 1 inside appearance liquid can not influenced by external factor, for example: replacement, dilution and the like, and the authenticity of the sample liquid is ensured from the source, so that the validity of water quality monitoring data is ensured.

The communicating channel comprises a first channel 4 and a second channel 5, when the switching component is communicated with the first channel 4 and the second channel 5, the sample liquid enters the sampling container 1 through the first channel 4, and the gas in the sampling container 1 is discharged to the outside through the second channel 5, so that sample introduction is started; the first channel 4 and the second channel 5 are separated by the switching assembly, so that the sample feeding is stopped. Specifically, the switching assembly controls the opening of the channel interface of the first channel 4 and the channel interface of the second channel 5, so that the first channel 4 and the second channel 5 are communicated with the inner cavity of the sampling container 1, and after the sampling container 1 is emptied of the sample liquid, a pressure difference is formed between the inner cavity of the sampling container 1 and the liquid level of the sample liquid, so that the sample liquid enters the inner cavity of the sampling container 1 from the first channel 4 and/or the second channel 5, and the sample introduction of the sample liquid is realized; when the switching component is switched to a cut-off state with the first channel 4 and the second channel 5, the inner cavity of the sampling container 1 forms a closed space, so that sample introduction is stopped, and sample liquid collection is completed.

Optionally, the switching assembly controls the opening of the sample inlet of the first channel 4 and the gas outlet of the second channel 5, so that the sample liquid enters the inner cavity of the sampling container 1 through the first channel 4, and the gas in the inner cavity of the sampling container 1 is exhausted through the second channel 5, thereby starting sample injection; through switching over closing of subassembly control first passageway 4's introduction port and second passageway 5's gas outlet, make appearance liquid can't get into sampling container 1 from first passageway 4 and second passageway 5 in to prevent that the appearance liquid of gathering in the sampling container 1 from first passageway 4 and second passageway 5 outflow, thereby stop to advance the appearance, accomplish the collection of appearance liquid. Optionally, the switching assembly controls the opening of the sample outlet of the first channel 4 and the gas inlet of the second channel 5, so that the sample liquid enters the inner cavity of the sampling container 1 through the first channel 4, and the gas in the inner cavity of the sampling container 1 is discharged through the second channel 5, thereby starting sample injection; through switching over closing of subassembly control first passageway 4's introduction port and second passageway 5's gas outlet, make appearance liquid can't get into sampling container 1 from first passageway 4 and second passageway 5 in to prevent that the appearance liquid of gathering in the sampling container 1 from first passageway 4 and second passageway 5 outflow, thereby stop to advance the appearance, accomplish the collection of appearance liquid.

Optionally, the switching assembly includes a lifting driving unit 6 installed in the sealing cover 2, a fixing plate 7 installed on an output end of the lifting driving unit 6, two pistons 8 installed on the fixing plate 7, a power module 9 connected to an input end of the lifting driving unit 6, and a control module for controlling the starting and stopping of the lifting driving unit 6, the lifting driving unit 6 drives the fixing plate 7 to ascend, so that the two pistons 8 are respectively separated from the sample inlet of the first channel 4 and the inner pipe of the second channel 5 to start sample injection, and the lifting driving unit 6 drives the fixing plate 7 to descend, so that the two pistons 8 are respectively plugged into the inner pipe of the first channel 4 and the inner pipe of the second channel 5 to stop sample injection; or the lifting driving unit 6 drives the fixing plate 7 to descend, so that the two pistons 8 are separated from the sample outlet of the first channel 4 and the internal pipeline of the second channel 5 respectively to start sample injection, and the lifting driving unit 6 drives the fixing plate 7 to ascend, so that the two pistons 8 are plugged into the internal pipeline of the first channel 4 and the internal pipeline of the second channel 5 respectively to stop sample injection.

In this embodiment, the sealing cover 2 is further provided with a pressure measuring cavity 20 communicated with the sample inlet of the first channel 4. The sampling container 1 also comprises a top cover 3 which covers the top of the sealing cover 2 and is used for installing a fixing plate 7, an air hole is arranged between the top cover 3 and the sealing cover 2, the air hole is communicated with the first channel 4 and/or the second channel 5, and the air hole and the inner cavity of the sampling container 1 can be isolated or communicated under the action of the cavity switching component; therefore, through the air hole communicated with the first channel 4 and/or the second channel 5, when the first channel 4 and/or the second channel 5 is below the liquid level and the sample liquid is prevented from forming a liquid column in the pipeline of the first channel 4 and/or the second channel 5, the inner cavity of the sampling container 1 forms an air-tight stable state, so that the inner cavity of the sampling container 1 can always smoothly flow gas and/or liquid with the outside, and the stability of sample introduction is ensured.

The bottom of the sealing cover 2 is provided with a cover plate 12 for covering the opening of the sampling container 1, the sample outlet of the first channel 4 is connected with the cover plate 12, and the gas inlet of the second channel 5 is connected with the cover plate 12. The lifting driving unit 6 is installed in the sealing cover 2, and an output end of the lifting driving unit 6 passes through the top of the sealing cover 2 to be connected with a fixing plate 7 installed in the top cover 3. A sample injection piston 8 and an exhaust piston 8 are installed on the fixing plate 7, a sample injection piston hole for the sample injection piston 8 to pass through and an exhaust piston hole for the exhaust piston 8 to pass through are formed in the sealing cover 2, the second channel 5 is connected with the exhaust piston hole, and the exhaust piston hole is in clearance fit with the exhaust piston 8 so that the inner cavity of the top cover 3 is connected with the second channel 5. When the sample introduction is started, the sample introduction piston 8 moves upwards to be separated from the inner pipeline of the first channel 4 and plugged into the sample introduction piston hole, external sample liquid firstly enters the pressure measurement cavity 20 and then enters the inner cavity of the sampling container 1 from the first channel 4, and the exhaust piston 8 moves upwards to be separated from the inner pipeline of the second channel 5, so that gas in the sampling container 1 enters the top cover 3 from a gap between the exhaust piston hole and the exhaust piston 8 through the second channel 5 and is finally discharged from a gas hole between the top cover 3 and the sealing cover 2. When the sample feeding is stopped, the sample feeding piston 8 penetrates through the top of the sealing cover 2 and is plugged into the inner pipeline of the first channel 4 below, and the exhaust pistons 8 penetrate through the top of the sealing cover 2 and are plugged into the inner pipeline of the second channel 5 below. The lifting driving unit 6 adopts a lifting motor.

Optionally, the switching assembly includes a rotation driving unit 10 installed in the sealing cover 2, a switching piece 11 connected to an output end of the rotation driving unit 10, a power module 9 connected to an input end of the rotation driving unit 10, and a control module for controlling the rotation driving unit 10 to start and stop, a cover plate 12 for covering an opening of the sampling container 1 is disposed at a bottom of the sealing cover 2, a flow opening is disposed on the cover plate 12, the switching piece 11 is installed between the cover plate 12 and the communication channel and is provided with two flow passing holes, and the switching piece 11 is rotated by the rotation driving unit 10 to enable the two flow passing holes on the switching piece 11 to be respectively communicated with the first channel 4 and the second channel 5 or to be in staggered sealing with each other, so that the first channel 4 and the second channel 5 are separated from or communicated with an inner cavity of the sampling container 1.

Alternatively, the sample outlet of the first channel 4 and the gas inlet of the second channel 5 are opposite to start sample injection, and the switching piece 11 is rotated by the rotation driving unit 10, so that the switching piece 11 is blocked on the sample outlet of the first channel 4 and the gas inlet of the second channel 5 to stop sample injection; or the rotation driving unit 10 rotates the switching piece 11, so that the two overflowing holes on the switching piece 11 respectively face the sample inlet of the first channel 4 and the gas outlet of the second channel 5 to start sample injection, and the rotation driving unit 10 rotates the switching piece 11, so that the switching piece 11 is blocked on the sample inlet of the first channel 4 and the gas outlet of the second channel 5 to stop sample injection.

Optionally, the switching assembly includes a rotation driving unit 10 installed in the sealing cover 2, a switching piece 11 connected to an output end of the rotation driving unit 10, a power module 9 connected to an input end of the rotation driving unit 10, and a control module for controlling the rotation driving unit 10 to start and stop, a cover plate 12 for covering an opening of the sampling container 1 is disposed at a bottom of the sealing cover 2, two circulation ports respectively communicated with the first channel 4 and the second channel are disposed on the cover plate 12, and the switching piece 11 is installed below the cover plate 12. The switching piece 11 is rotated by the rotation driving unit 10, so that the switching piece 11 is staggered with the sample outlet of the first channel 4 and the air inlet of the second channel 5 to start sample injection, and the switching piece 11 is rotated by the rotation driving unit 10, so that the switching piece 11 is blocked on the sample outlet of the first channel 4 and the air inlet of the second channel 5 to stop sample injection; or the switching piece 11 is rotated by the rotation driving unit 10, so that the switching piece 11 is staggered with the sample inlet of the first channel 4 and the gas outlet of the second channel 5 to start sample injection, and the switching piece 11 is rotated by the rotation driving unit 10, so that the switching piece 11 is blocked on the sample inlet of the first channel 4 and the gas outlet of the second channel 5 to stop sample injection.

In another embodiment, the sampling container 1 comprises a sampling container 1 and a sealing cover 2 covering the sampling container 1, and the first channel 4 and the second channel 5 are both installed in the sealing cover 2. The bottom of the sealing cover 2 is provided with a cover plate 12 for covering the opening of the sampling container 1, the sample outlet of the first channel 4 is connected with the cover plate 12, and the gas inlet of the second channel 5 is connected with the cover plate 12. The rotation driving unit 10 is installed in the sealing cover 2, and an output end of the rotation driving unit 10 penetrates the cover plate 12 and is connected with the switch plate 11 below the cover plate 12. The rotary driving unit 10 rotates the switching piece 11 to make the switching piece 11 staggered with the sample outlet and the gas inlet on the cover plate 12 to start sample injection, and the rotary driving unit 10 rotates the switching piece 11 to make the switching piece 11 block the sample outlet and the gas inlet on the cover plate 12 to stop sample injection. The rotary drive unit 10 employs a drive motor. The top of the sealing cover 2 is provided with a pressure measuring cavity 20 communicated with the first channel 4 and the stock layout channel, and the sealing cover 2 is provided with an air hole communicated with the pressure measuring cavity 20.

The switching assembly further comprises a pressure measuring module 19 connected to the power module 9 and the control module for measuring the sample liquid pressure. The pressure measuring module 19 is installed in the sealing cover 2, the measuring end of the pressure measuring module 19 extends into the pressure measuring cavity 20, the pressure of sample liquid in the pressure measuring cavity 20 is measured through the pressure measuring module 19, the pressure measuring signal is transmitted to the control module, and the control module judges whether the sampling device reaches the depth of required sampling according to the pressure measuring signal, so that the sampling is controlled.

Wherein, it is fixed to be partial to the inlet through 2 inside parts of sealed lid for sampling container 1 puts in to so that sampling device puts in to the sample liquid sampling point after, sampling container 1 puts in to the sampling liquid level after, and the inlet is near regional to sink to below the liquid level, and the gas vent then is located more than the liquid level, makes the sample of waiting to gather in gathering to sampling container 1 from the inlet, and the gas in the sampling container 1 then is followed the gas vent and is discharged to the external world. Optionally, a weight 18 is provided on the sealing cap 2 near the sample inlet.

As shown in fig. 15-18, a sampling device of another embodiment comprises a sampling container 1 and a sealing cover 2 connected to the sampling container 1, wherein a flow passage 24 communicated with the sampling container 1 is formed on the sealing cover 2; the device also comprises a switching component which is fixed in the sealing cover 2 and arranged along the path of the overflowing channel 24, and the switching component and the overflowing channel 24 can be isolated or communicated; the sampling container 1 is a shape-variable compression structure, the internal volume and/or pressure of which can be variably set. The sampling device of the invention, the sampling container 1 is connected with the sealing cover 2, and the sealing cover 2 is provided with the overflowing channel 24 communicated with the sampling container 1, the switching component is also arranged in the sealing cover 2, and the sampling container 1 is set into a shape-variable compression structure, and the internal volume and/or pressure intensity can be changed, therefore, the sampling container 1 is compressed before sampling, so that the pressure intensity in the sampling container 1 is reduced, the overflowing channel 24 is separated from the sampling container 1 through the switching component, so that sample liquid, other gases and impurities can not enter the sampling container 1 through the flowing channel 24, when the sampling device reaches a sampling point, the overflowing channel 24 is communicated with the sampling container 1 through the switching component, so that the sample liquid outside is sent into the sampling container 1 through the flowing channel 24 under the pressure difference between the sampling container 1 and the external pressure intensity, when the pressure in the sampling container 1 is increased to be equal to the external pressure, the sample liquid stops sampling, and the overflowing channel 24 is separated from the sampling container 1 through the switching assembly, so that the quantitatively collected sample liquid is sealed and stored in the sampling container 1. Through the switching module who arranges along overflowing channel 24, conquered the fake of advancing the kind channel to the appearance liquid from advancing, guaranteed that the sampling is accomplished the back, the appearance liquid of sampling container 1 can not influenced by external factor, for example: replacement, dilution and the like, and the authenticity of the sample liquid is ensured from the source, so that the validity of water quality monitoring data is ensured.

In a preferred embodiment of the present invention, the sampling container 1 is a compressible/expandable structure, for example, the sampling container 1 is a bellows-shaped compressible structure, and the sampling container 1 is compressed to change the volume and/or pressure inside the sampling container 1, so that a pressure difference is formed between the inside and the outside of the cavity of the sampling container 1, and the sample liquid is automatically quantitatively and pressure-fed from the overflow channel 24 to the inner cavity of the sampling container 1 by the pressure difference between the inside and the outside of the inner cavity of the sampling container 1.

In the present embodiment, a cover plate 12 is provided in the sealing cap 2 to cover the container mouth of the sampling container 1. The cover plate 12 is provided with a flow port communicating with the flow passage 24. The switching assembly is mounted above the cover plate 12. The switching assembly comprises a lifting driving unit 6 installed in the sealing cover 2, a piston 8 installed on the output end of the lifting driving unit 6, a power module 9 connected with the input end of the lifting driving unit 6 and a control module used for controlling the starting and stopping of the lifting driving unit 6, the lifting driving unit 6 drives the fixing plate 7 to ascend, the piston 8 is separated from the sample inlet of the overflowing channel 24 and is switched to a sample inlet state to start sample introduction, the lifting driving unit 6 drives the fixing plate 7 to descend, and the piston 8 is plugged into the sample inlet of the overflowing channel 24 and is switched to a sealing state to stop sample introduction. Optionally, the lifting driving unit 6 drives the fixing plate 7 to descend, so that the piston 8 is separated from the sample outlet of the overflowing channel 24 and switched to a sample inlet state to start sample injection, and the lifting driving unit 6 drives the fixing plate 7 to ascend, so that the piston 8 is plugged into the sample outlet of the overflowing channel 24 and switched to a sealed state to stop sample injection.

In another embodiment, the switching assembly includes a rotation driving unit 10 inside the sealing cover 2, a switching piece 11 connected to an output end of the rotation driving unit 10, a power module 9 connected to an input end of the rotation driving unit 10, and a control module for controlling the rotation driving unit 10 to start and stop. The switching piece 11 is provided with an overflowing hole. The rotary driving unit 10 rotates the switching piece 11, so that the overflowing hole on the switching piece 11 is opposite to the sample outlet of the overflowing channel 24 to switch to a sample inlet state for starting sample inlet, and the rotary driving unit 10 rotates the switching piece 11, so that the switching piece 11 is blocked on the sample outlet of the overflowing channel 24 to switch to a sealed state for stopping sample inlet. Alternatively, the rotation driving unit 10 rotates the switching piece 11, so that the overflowing hole on the switching piece 11 is opposite to the sample inlet of the overflowing channel 24 to switch to the sample inlet state to start sample injection, and the rotation driving unit 10 rotates the switching piece 11, so that the switching piece 11 is blocked on the sample inlet of the overflowing channel 24 to switch to the sealed state to stop sample injection. In the present embodiment, the switching piece 11 is provided with an overflow hole. The switching piece 11 is rotated by the rotation driving unit 10, so that the overflowing hole, the sample outlet of the overflowing channel 24 and the flow outlet of the cover plate 12 are communicated and switched to a sample introduction state to start sample introduction, the switching piece 11 is rotated by the rotation driving unit 10, so that the overflowing hole and the sample outlet of the overflowing channel 24 are staggered, the switching piece 11 is blocked between the sample outlet of the overflowing channel 24 and the flow outlet of the cover plate 12, and the switching piece is switched to a sealing state to stop sample introduction.

In this embodiment, the switching assembly further comprises a pressure measuring module 19 connected to the power module 9 and the control module for measuring the sample liquid pressure. The sealing cover 2 is provided with a pressure measuring cavity 20 communicated with the outside. Pressure measuring module 19 installs in sealed lid 2, and pressure measuring module 19's measuring end stretches into pressure measuring chamber 20 in, measures the appearance liquid pressure in pressure measuring chamber 20 through pressure measuring module 19 to with pressure measuring signal transmission to control module, control module judges whether the degree of depth that sampling device arrived required sampling according to pressure measuring signal, and then control and advance a kind.

Alternatively, the sampling vessel 1 and the sealing cap 2 are of an integrally formed structure.

In the present embodiment, the sampling vessel 1 and the sealing cap 2 are separate structures. The sampling device further comprises an anti-counterfeiting detection device arranged between the sampling container 1 and the sealing cap 2. Through the anti-fake detection device who sets up between sealed lid 2 and sampling container 1, can automatic identification sampling container 1 and sealed lid 2 whether separate after the appearance of having adopted. In this embodiment, a communication module connected to the anti-counterfeit detection device and used for transmitting detection information is installed in the sealing cover 2. The communication module transmits the information of the disconnection of the detection circuit to the remote management platform, so that whether the sealing cover 2 is opened or not is known. Optionally, the anti-counterfeiting detection device further comprises a display module connected with the anti-counterfeiting detection device and used for displaying detection information. Whether the sealing cover 2 is opened or not is known according to the display of the display module. Optionally, the anti-counterfeiting detection device further comprises a sound module connected with the anti-counterfeiting detection device and used for identifying detection information. Whether the sealing cover 2 is opened or not is known according to the voice or the ring of the sound module.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An anti-counterfeiting detection device is used for detecting whether a sealing cover (2) covered on a sampling container (1) is opened or not,

it is characterized in that the preparation method is characterized in that,

the anti-counterfeiting detection device comprises at least one telescopic movable part and a protruding part (21) arranged on the sampling container (1), wherein the movable part is arranged in the sealing cover (1), and the protruding sealing cover (2) of the movable part extends towards the sampling container (1) and is in separable contact with the protruding part of the sampling container (1).

2. The anti-counterfeiting detection device according to claim 1,

the anti-counterfeiting detection device comprises a detection circuit arranged in the sealing cover (2) and a light touch switch (16) used for controlling the on-off of the detection circuit,

the two ends of the movable part respectively prop against the tact switch (16) and the sampling container (1) by utilizing the extrusion force between the sealing cover (2) and the sampling container (1) in the covering state, and the tact switch (16) is triggered to enable the detection circuit to form a closed loop, so that the sealing cover (2) and the sampling container (1) are judged to be in the covering state;

when the sealing cover (1) is loosened or opened, the movable part is separated from the light touch switch (16) to disconnect the detection circuit, so that the sealing cover (2) and the sampling container (1) are judged to be in an opening state.

3. The anti-counterfeiting detection device according to claim 2,

the anti-counterfeiting detection device also comprises a communication module which is connected with the detection circuit and is used for transmitting detection information.

4. The anti-counterfeiting detection device according to claim 2,

the anti-counterfeiting detection device also comprises a display module which is connected with the detection circuit and is used for displaying detection information.

5. The anti-counterfeiting detection device according to claim 2,

the movable part comprises a pressure transmission shaft (14), and the two ends of the pressure transmission shaft (14) are respectively propped against the tact switch (16) and the sampling container (1) by utilizing extrusion force between the sealing cover (2) and the sampling container (1) in a covering state.

6. The anti-counterfeiting detection device according to claim 5,

the movable part also comprises a spring (15) sleeved on the pressure transmission shaft (14), the top end of the spring (15) is propped against the sealing cover (2), and the bottom end of the spring (15) is propped against the pressure transmission shaft (14).

7. The anti-counterfeiting detection device according to claim 5,

the movable part is still including installing in sealed lid (2) and with trigger ball (17) of pressure transmission shaft (14) butt, be equipped with the through-hole that the aperture is less than the diameter of trigger ball (17) on the bottom surface of sealed lid (2) to make trigger ball (17) outstanding from the through-hole.

8. The anti-counterfeiting detection device according to claim 1,

the sampling device also comprises an anti-disassembly mechanism which is arranged in the sealing cover (2) and is movably connected with the sampling container (1).

9. The anti-counterfeiting detection device according to claim 8,

the anti-disassembly mechanism comprises a lifting locking unit (29) arranged in the sealing cover (2) and a limiting disc (32) which is covered on the container opening of the sampling container (1) and is movably connected with the movable end of the lifting locking unit (29),

the bottom surface of the limiting disc (32) is provided with a limiting groove (23) along the radial direction, and the inner side wall surface of the container opening of the sampling container (1) is provided with a limiting block (22) matched with the limiting groove (23).

10. A sampling device comprising a sampling container (1), a sealing cap (2) and an anti-counterfeiting detection device according to any one of claims 1 to 9.

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