Test equipment and sample recovery device

Abstract

The utility model discloses a test equipment and sample recovery device, the sample recovery device comprises a communication assembly and a gating assembly, the communication assembly comprises a connecting pipeline, a first liquid outlet pipeline and a second liquid outlet pipeline, one end of the connecting pipeline is communicated with the liquid outlet end of a density tester, and the other end of the connecting pipeline is communicated with the gating assembly. The other end of the connecting pipeline is communicated with one end of the first liquid outlet pipeline and one end of the second liquid outlet pipeline; the first liquid outlet pipeline is used for discharging samples, and the second liquid outlet pipeline is used for discharging waste liquid; the gating assembly is arranged on the first liquid outlet pipeline and the second liquid outlet pipeline or arranged at the connecting position between the connecting pipeline and the first liquid outlet pipeline and the connecting position between the connecting pipeline and the second liquid outlet pipeline and used for selectively connecting or disconnecting the connecting pipeline with the first liquid outlet pipeline and the second liquid outlet pipeline. According to the device, samples and waste liquid can be respectively output from the first liquid outlet pipeline and the second liquid outlet pipeline in batches, so that the samples are prevented from being polluted, the samples can be recycled and reused, and waste is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of density testing, in particular to a testing device and a sample recovery device. BACKGROUND

[0002] An atomization device can atomize an atomization substrate to generate aerosol in a heated manner. For example, the atomization device is applied in the medical field or the electronic cigarette field. The atomization substrate is usually in a liquid form, and the density of the atomization substrate is one of the main physical and chemical indexes of the atomization substrate, and the density is mainly related to the amount of components contained in the atomization substrate. In the laboratory, a density tester is usually used to measure the density of the atomization substrate, and after the measurement is completed, the atomization substrate is collected together with a cleaning solvent, causing waste of the atomization substrate. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to provide a testing device and a sample recovery device, so as to output the sample and the waste liquid from different pipelines in turns, avoid pollution to the sample, and enable the sample to be recycled and reused, thereby avoiding waste.

[0004] The present application provides a sample recovery device, comprising:

[0005] A communication assembly comprises a connecting pipeline, a first liquid outlet pipeline and a second liquid outlet pipeline. One end of the connecting pipeline is in communication with a liquid outlet end of the density tester, and the other end of the connecting pipeline is in communication with one end of the first liquid outlet pipeline and one end of the second liquid outlet pipeline. The first liquid outlet pipeline is used for discharging the sample, and the second liquid outlet pipeline is used for discharging the waste liquid.

[0006] A gating assembly is arranged on the first liquid outlet pipeline and the second liquid outlet pipeline, or arranged at a connecting position between the connecting pipeline and the first liquid outlet pipeline and the second liquid outlet pipeline. The gating assembly is used for selectively connecting or disconnecting the connecting pipeline and the first liquid outlet pipeline or the second liquid outlet pipeline.

[0007] In an embodiment, the gating assembly comprises a first control valve and a second control valve. The first control valve is arranged on the first liquid outlet pipeline, and the second control valve is arranged on the second liquid outlet pipeline. The first control valve is used for connecting or disconnecting the connecting pipeline and the first liquid outlet pipeline, and the second control valve is used for connecting or disconnecting the connecting pipeline and the second liquid outlet pipeline.

[0008] In an embodiment, the gating assembly further comprises a control module. The control module is electrically connected with the first control valve and the second control valve respectively. The control module is used for controlling the working state of the first control valve and the second control valve.

[0009] In an embodiment, the gating assembly comprises a gating valve, the gating valve comprises a mobile closing component and a three-way valve body, the three-way valve body is arranged at a connection position between the connection pipeline and the first liquid outlet pipeline and the second liquid outlet pipeline, and is connected with the other end of the connection pipeline, one end of the first liquid outlet pipeline and one end of the second liquid outlet pipeline respectively, the mobile closing component is movably arranged in the three-way valve body and has a first position and a second position relative to the three-way valve body;

[0010] When the mobile closing component is at the first position, the three-way valve body connects the connection pipeline with the first liquid outlet pipeline and disconnects the connection pipeline with the second liquid outlet pipeline; when the mobile closing component is at the second position, the three-way valve body disconnects the connection pipeline with the first liquid outlet pipeline and connects the connection pipeline with the second liquid outlet pipeline.

[0011] In an embodiment, the gating valve further comprises a driving unit, the mobile closing component comprises a connecting piece and a closing piece; the mobile piece is movably arranged on the three-way valve body, the closing piece is mounted on the connecting piece, and the driving unit is connected with the mobile piece and used for driving the mobile piece to move the closing piece between the first position and the second position.

[0012] The three-way valve body has an inlet, a first outlet and a second outlet, the inlet, the first outlet and the second outlet are in communication with each other, the inlet is in communication with the connection pipeline, the first outlet is in communication with the first liquid outlet pipeline, and the second outlet is in communication with the second liquid outlet pipeline; in the first position, the closing piece blocks the second outlet so as to make the inlet and the first outlet in communication; in the second position, the closing piece blocks the first outlet so as to make the inlet and the second outlet in communication.

[0013] In an embodiment, the communication assembly further comprises a locking piece, the locking piece is used for locking and connecting one end of the connection pipeline with a liquid outlet end of the density tester;

[0014] And / or, the communication assembly further comprises a liquid discharge conveying pump, the liquid discharge conveying pump is mounted between one end of the connection pipeline and the liquid outlet end of the density tester, and is used for conveying the liquid output from the liquid outlet end of the density tester to the connection pipeline.

[0015] In an embodiment, the sample recovery device further comprises a sample collection tool, the communication assembly further comprises a sample recovery pipeline, the sample recovery pipeline is connected between the first liquid outlet pipeline and the sample collection tool, and the sample collection tool is used for collecting the discharged sample.

[0016] And / or, the sample recovery device further comprises a waste liquid collecting device, which is connected with the second liquid outlet pipeline, and is used for collecting the discharged waste liquid.

[0017] In an embodiment, the sample recovery pipeline is detachably connected between the first liquid outlet pipeline and the sample collecting device.

[0018] The sample collecting device comprises a test tube or a centrifuge tube.

[0019] The application further provides a testing device, which comprises a density tester and the sample recovery device, and the density tester has a liquid outlet end, which is in communication with the connecting pipeline.

[0020] In an embodiment, the testing device further comprises a sample supply device, the density tester comprises a tester body and a test tube, the test tube is in a U shape, the test tube is arranged inside the tester body, one end of the test tube is provided with the liquid outlet end, and the other end of the test tube is further provided with a liquid inlet end, the liquid inlet end is in communication with the sample supply device, and the sample supply device is used for providing a sample.

[0021] According to the density tester and the sample recovery device provided in the above embodiments, the connection between the connecting pipeline and the first liquid outlet pipeline or the second liquid outlet pipeline is selectively turned on or turned off through the gating assembly, so that the sample and the waste liquid can be discharged from the first liquid outlet pipeline and the second liquid outlet pipeline in turns, and the atomized matrix discharged from the first liquid outlet pipeline can be collected and reused, thereby avoiding waste. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A structural schematic view of the sample recovery device provided by the application;

[0023] Figure 2 A schematic view of the gating assembly in the sample recovery device provided by the application in an embodiment;

[0024] Figure 3 A schematic view of the gating assembly in the sample recovery device provided by the application in another embodiment Figure 1 .

[0025] Figure 4 A schematic view of the gating assembly in the sample recovery device provided by the application in another embodiment Figure 2 .

[0026] REFERENCE SIGNS:

[0027] The communication assembly 10, the connecting pipeline 11, the first liquid outlet pipeline 12, the second liquid outlet pipeline 13, the sample recovery pipeline 14, the locking member 15, and the liquid discharge conveying pump 16.

[0028] Gate assembly 20, gate valve 21, moving closure assembly 211, connecting piece 2111, closure piece 2112, three-way valve body 212, inlet 2121, first outlet 2122, second outlet 2123, drive unit 213, first control valve 221, second control valve 222, control module 223;

[0029] Sample collection device 30;

[0030] Waste liquid collection device 40;

[0031] Test device 100, density tester 101, tester body 102, test tube 103, liquid inlet end 1031, liquid outlet end 1032, sample supply device 104. DETAILED DESCRIPTION

[0032] The application will be further described below in detail with specific embodiments and with reference to the accompanying drawings. In different embodiments, similar elements are denoted by associated similar element reference numbers. In the following embodiments, many details are described in order to make the application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification, in order to avoid the core part of the application being overwhelmed by too much description, and it is not necessary to describe these related operations in detail for those skilled in the art, who can fully understand the related operations according to the description in the specification and general technical knowledge in the art.

[0033] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only intended to clearly describe one embodiment, and do not mean that the composition and / or order is necessary.

[0034] The serial numbers of the components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "coupling" in this application include direct and indirect connections (couplings) unless otherwise specified.

[0035] Density of the atomization substrate is one of its important physical and chemical indexes, which can affect the content of the generated aerosol, and it is necessary to measure the density of the atomization substrate during the production stage to meet the actual needs. The density of the atomization substrate is usually measured by a density tester, which is usually provided with a U-shaped tube and measures the density of the atomization substrate by oscillation method. During the measurement process, in order to avoid the generation of bubbles in the U-shaped tube, 3-5 ml of sample is usually injected at a constant speed to ensure the accuracy of the results. After the test is completed, in order to ensure that the subsequent test samples are not contaminated, the U-shaped tube needs to be cleaned by a cleaning solvent, and the cleaning solvent will be discharged into the waste liquid collecting device together with the sample. For some rare samples in small quantities, it will cause waste of rare samples.

[0036] To solve the above problems, the application provides a test device and a sample recovery device to discharge the sample and the cleaning solvent through different pipelines to separate the collection of the cleaning solvent and the sample.

[0037] In the following embodiments, the sample is the atomization substrate measured by the density tester, and the waste liquid is the cleaning solvent after cleaning the U-shaped tube of the density tester.

[0038] The application provides a sample recovery device applied to a test device, which can be a device for measuring the density of a liquid, such as a density tester. The sample recovery device can separate the recovery of the sample and the waste liquid, and therefore, the test device can also be a device with other measurement functions to facilitate the separate recovery of the sample and the waste liquid of the device.

[0039] Referring to Figure 1 The sample recovery device provided by the application includes a communication assembly 10 and a gating assembly 20.

[0040] The test device 100 includes a density tester 101 and the sample recovery device provided by the application. The density tester 101 includes a tester body 102 and a test tube 103. The test tube 103 is in a U shape. One end of the test tube 103 is provided with a liquid inlet end 1031, and the other end of the test tube 103 is provided with a liquid outlet end 1032. The test tube 103 is arranged inside the tester body 102. In an embodiment, at least part of the test tube 103 is located inside the tester body 102, so that the liquid inlet end 1031 and the liquid outlet end 1032 both extend to the outside of the tester body 102.

[0041] In this embodiment, the test device 100 further includes a sample supply device 104 connected with the liquid inlet end 1031, which is used to provide a to-be-measured sample into the test tube 103 through the liquid inlet end 1031. The to-be-measured sample is an atomization substrate that can generate aerosol by atomization. The sample supply device 104 can provide the to-be-measured sample into the test tube 103 through the liquid inlet end 1031 in a pumping manner.

[0042] In the related art, when measuring the density of the atomized substrate, the atomized substrate is input into the test tube 103 through the liquid inlet end 1031, and the test tube 103 is oscillated by the test instrument body 102 to measure the density of the atomized substrate in the test tube 103. After the measurement is completed, the cleaning solvent is input into the test tube 103 through the liquid inlet end 1031, and the atomized substrate is output together with the cleaning solvent through the liquid outlet end 1032 to avoid contamination of the atomized substrate for subsequent measurement. In this way, the atomized substrate is wasted.

[0043] It should be noted that when the cleaning solvent is input into the test tube 103 through the liquid inlet end 1031, it can be provided by a cleaning solvent supply device, that is, the cleaning solvent supply device is installed at the liquid inlet end 1031, and the cleaning solvent supply device can also deliver the cleaning solvent to the test tube 103 through the liquid inlet end 1031 in a pumping manner.

[0044] It can be understood that the cleaning solvent supply device and the sample supply device 104 can be connected to the liquid inlet end 1031 at the same time, and controlled by a switch. When the sample needs to be provided, the switch connects the sample supply device 104 to the liquid inlet end 1031 and disconnects the cleaning solvent supply device from the liquid inlet end 1031. When the cleaning solvent needs to be provided, the switch connects the cleaning solvent supply device to the liquid inlet end 1031 and disconnects the sample supply device 104 from the liquid inlet end 1031.

[0045] In this application, the communication assembly 10 includes a connecting pipeline 11, a first liquid outlet pipeline 12, and a second liquid outlet pipeline 13. One end of the connecting pipeline 11 is used to communicate with the liquid outlet end 1032 of the test tube 103 in the density tester 101, and the other end of the connecting pipeline 11 communicates with one end of the first liquid outlet pipeline 12 and one end of the second liquid outlet pipeline 13. In this way, the connecting pipeline 11, the first liquid outlet pipeline 12, and the second liquid outlet pipeline 13 form a three-way pipe, and the first liquid outlet pipeline 12 is used to discharge the sample (i.e., the atomized substrate), and the second liquid outlet pipeline 13 is used to discharge the waste liquid (i.e., the mixture of the atomized substrate and the cleaning solvent).

[0046] The gating assembly 20 is arranged on the first liquid outlet pipeline 12 and the second liquid outlet pipeline 13, or arranged at a connection position between the connecting pipeline 11 and the first liquid outlet pipeline 12 and the second liquid outlet pipeline 13. The connection position can be between the other end of the connecting pipeline 11 and one end of the first liquid outlet pipeline 12, and between the other end of the connecting pipeline 11 and one end of the second liquid outlet pipeline 13.

[0047] The gating assembly 20 is used to selectively connect or disconnect the connecting pipe 11 with the first liquid outlet pipe 12 or the second liquid outlet pipe 13. In other words, when the gating assembly 20 connects the connecting pipe 11 with the first liquid outlet pipe 12, it disconnects the connecting pipe 11 with the second liquid outlet pipe 13, and when the gating assembly 20 disconnects the connecting pipe 11 with the first liquid outlet pipe 12, it connects the connecting pipe 11 with the second liquid outlet pipe 13.

[0048] Specifically, the gating assembly 20 can selectively connect the other end of the connecting pipe 11 with one end of the first liquid outlet pipe 12 and disconnect the other end of the connecting pipe 11 with one end of the second liquid outlet pipe 13, or the gating assembly 20 can selectively disconnect the other end of the connecting pipe 11 with one end of the first liquid outlet pipe 12 and connect the other end of the connecting pipe 11 with one end of the second liquid outlet pipe 13.

[0049] Here, it should be noted that connection means that the two pipes are in a connected state, and disconnection means that the two pipes are in a disconnected state. In the connected state, the sample or waste liquid can be discharged through the corresponding pipe.

[0050] In actual use, when the atomized substrate completes the density measurement in the test tube 103, the gating assembly 20 connects the connecting pipe 11 with the first liquid outlet pipe 12 and disconnects the connecting pipe 11 with the second liquid outlet pipe 13, so that the atomized substrate can be discharged through the first liquid outlet pipe 12. After the atomized substrate is discharged, the cleaning solvent supply device inputs the cleaning solvent into the test tube 103 through the liquid inlet end 1031, and after the cleaning solvent completes the cleaning of the test tube 103, the gating assembly 20 disconnects the connecting pipe 11 with the first liquid outlet pipe 12 and connects the connecting pipe 11 with the second liquid outlet pipe 13, so that the cleaned cleaning solvent is discharged through the second liquid outlet pipe 13.

[0051] Continuing to refer to Figure 1 As shown, the sample recovery device provided by the embodiment further includes a sample collection device 30 and a waste liquid collection device 40, wherein the sample collection device 30 can be connected to one end of the first liquid outlet pipe 12 away from the connecting pipe 11, and the atomized substrate discharged through the first liquid outlet pipe 12 can be collected by the sample collection device 30, which can be reused to avoid waste. The waste liquid collection device 40 can be connected to one end of the second liquid outlet pipe 13 away from the connecting pipe 11, and the cleaning solvent discharged through the second liquid outlet pipe 13 can be collected by the waste liquid collection device 40 to avoid environmental pollution.

[0052] The application selectively connects or disconnects the connecting pipe 11 with the first liquid outlet pipe 12 or the second liquid outlet pipe 13 through the gating assembly 20, so that the sample and the waste liquid can be discharged from the first liquid outlet pipe 12 and the second liquid outlet pipe 13 in turns, and the atomized substrate discharged from the first liquid outlet pipe 12 can be collected and reused, thereby avoiding waste.

[0053] Continuing to refer to Figure 1 As shown, to guide the sample discharged from the first liquid outlet pipe 12 to be collected by the sample collection device, the connecting assembly 10 further comprises a sample recovery pipe 14 connecting between the first liquid outlet pipe 12 and the sample collection device 30, which is used to transport the sample discharged from the first liquid outlet pipe 12 to the sample collection device 30, so as to collect the sample by the sample collection device 30.

[0054] In the application, the sample collection device 30 can be a test tube or a centrifuge tube, and of course, in other embodiments, the sample collection device 30 can also be other glassware and the like.

[0055] In an embodiment, when the densities of atomized substrates with different components are measured, the atomized substrate measured last and the atomized substrate measured next are both discharged and collected through the sample recovery pipe 14, and the residues of the atomized substrate measured last in the sample recovery pipe 14 will contaminate the atomized substrate measured next when flowing through the sample recovery pipe 14. Therefore, the sample recovery pipe 14 is detachably connected between the first liquid outlet pipe 12 and the sample collection device 30, for example, the sample recovery pipe 14 is detachably connected with the first liquid outlet pipe 12 and the sample collection device 30 through a locking member, so that after the atomized substrate measured last is discharged through the sample recovery pipe 14, the sample recovery pipe 14 can be removed from the other end of the first liquid outlet pipe 12, and another new sample recovery pipe 14 is replaced to discharge the atomized substrate measured next, thereby avoiding cross contamination of atomized substrates with different components.

[0056] In some embodiments, the locking member can be a clamp or the like structure, and the two ends of the sample recovery pipe 14 can be respectively sleeved on the first liquid outlet pipe 12 and the sample collection device 30, and the sample recovery pipe 14 is locked by the clamp to achieve detachable connection.

[0057] In particular, it is necessary to note that the connecting pipeline 11, the first liquid outlet pipeline 12 and the second liquid outlet pipeline 13 form a three-way pipeline structure, so as to facilitate the step-by-step guiding of the sample and the waste liquid to be discharged through the first liquid outlet pipeline 12 and the second liquid outlet pipeline 13 under the action of the gating assembly 20. At least the length of the first liquid outlet pipeline 12 is short enough, and the first liquid outlet pipeline 12 plays a role of connecting the sample recovery pipeline 14 and the connecting pipeline 11 at this time, so that the residue remaining on the first liquid outlet pipeline 12 can be almost negligible when the atomized substrate of the last measurement is discharged.

[0058] In some embodiments, the sample recovery pipeline 14 can also be inserted into the inner cavity of the first liquid outlet pipeline 12, so that the sample recovery pipeline 14 can be directly extended to the connecting pipeline 11, further avoiding the formation of residue of the atomized substrate of the last measurement on the first liquid outlet pipeline 12. Of course, the connection mode of insertion should also ensure the sealing between the sample recovery pipeline 14 and the first liquid outlet pipeline 12.

[0059] Referring to Figure 2 In an embodiment of the present application, the gating assembly 20 includes a first control valve 221 and a second control valve 222, the first control valve 221 is arranged on the first liquid outlet pipeline 12, and the second control valve 222 is arranged on the second liquid outlet pipeline 13. The first control valve 221 is used to connect or disconnect the connection between the connecting pipeline 11 and the first liquid outlet pipeline 12, and the second control valve 222 is used to connect or disconnect the connection between the connecting pipeline 11 and the second liquid outlet pipeline 13.

[0060] Specifically, the first control valve 221 connects the connection between the connecting pipeline 11 and the first liquid outlet pipeline 12, at the same time, the second control valve 222 disconnects the connection between the connecting pipeline 11 and the second liquid outlet pipeline 13, so that the first liquid outlet pipeline 12 is connected at the same time as the second liquid outlet pipeline 13 is disconnected. The first control valve 221 disconnects the connection between the connecting pipeline 11 and the first liquid outlet pipeline 12, at the same time, the second control valve 222 connects the connection between the connecting pipeline 11 and the second liquid outlet pipeline 13, so that the first liquid outlet pipeline 12 is disconnected at the same time as the second liquid outlet pipeline 13 is connected.

[0061] The first control valve 221 is arranged on the first liquid outlet pipeline 12, and the first control valve 221 can connect or disconnect the first liquid outlet pipeline 12, thereby connecting or disconnecting the connection between the first liquid outlet pipeline 12 and the connecting pipeline 11. Similarly, the second control valve 222 arranged on the second liquid outlet pipeline 13 can connect or disconnect the second liquid outlet pipeline 13 when it is connected or disconnected, thereby connecting or disconnecting the connection between the second liquid outlet pipeline 13 and the connecting pipeline 11, so as to control the liquid outlet pipeline to connect or disconnect the first liquid outlet pipeline 12 and the second liquid outlet pipeline 13 step by step.

[0062] The first control valve 221 and the second control valve 222 can be of a common valve structure, and can be connected or disconnected by plugging or opening.

[0063] Of course, in the present embodiment, the first control valve 221 and the second control valve 222 can be of an electrically operated valve structure, and thus the gating assembly 20 further comprises a control module 223 connected with the first control valve 221 and the second control valve 222, the control module 223 being configured to control the first control valve 221 to connect or disconnect the one end of the first liquid outlet pipeline 12, and to control the second control valve 222 to disconnect or connect the one end of the second liquid outlet pipeline 12, so as to realize automatic control of the first control valve 221 and the second control valve 222 under the action of the control module 223.

[0064] Referring to Figs. 1 and 2, Figure 3 and Figure 4 In another embodiment of the present application, the gating assembly 20 comprises a gating valve 21, which comprises a moving sealing assembly 211 and a three-way valve body 212, the three-way valve body 212 being arranged at a connecting position between the connecting pipeline 11 and the first liquid outlet pipeline 12 and the second liquid outlet pipeline 13, and being connected with the other end of the connecting pipeline 11, the one end of the first liquid outlet pipeline 12 and the one end of the second liquid outlet pipeline 13 respectively, and the moving sealing assembly 211 being movably arranged in the three-way valve body 212, the moving sealing assembly 211 having a first position A and a second position B relative to the three-way valve body 212, i.e., the moving sealing assembly 211 can reciprocate between the first position A and the second position B relative to the three-way valve body 212.

[0065] When the moving sealing assembly 211 moves to the first position A, the three-way valve body 212 connects the connecting pipeline 11 and the first liquid outlet pipeline 12, and disconnects the connecting pipeline 11 and the second liquid outlet pipeline 13, so as to discharge the measured sample through the first liquid outlet pipeline 12.

[0066] When the moving sealing assembly 211 moves to the second position B, the three-way valve body 212 disconnects the connecting pipeline 11 and the first liquid outlet pipeline 12, and connects the connecting pipeline 11 and the second liquid outlet pipeline 13, so as to discharge the waste liquid through the second liquid outlet pipeline 12.

[0067] To enable the mobile closing assembly 211 to switch between the first position A and the second position B, the selector valve 21 provided in the embodiment further comprises a driving unit 213, the mobile closing assembly 211 comprises a connecting member 2111 and a closing member 2112, the connecting member 2111 is movably arranged on the three-way valve body 212, and the driving unit 213 is connected with the connecting member 2111, and the driving unit 213 is configured to drive the connecting member 2111 to move the closing member 2112 between the first position A and the second position B.

[0068] In some embodiments, the connecting member 2111 can be a screw rod, the driving unit 213 can be a driving motor connected with the screw rod, and the closing member 2112 is screwed on the screw rod, the driving motor drives the screw rod to rotate, and the closing member 2112 can convert the rotary motion of the screw rod into linear motion in the axial direction of the screw rod, and by controlling the torque and rotation direction of the screw rod by the driving motor, the closing member 2112 can be driven to the first position A or the second position B, thereby realizing automatic control.

[0069] Continuing to refer to FIGS. 1, 2 and 3, Figure 3 and Figure 4 The three-way valve body 212 has an inlet 2121, a first outlet 2122 and a second outlet 2123, the inlet 2121, the first outlet 2122 and the second outlet 2123 are in communication with each other, the inlet 2121 is in communication with the connecting pipeline 11, the first outlet 2122 is in communication with the first liquid outlet pipeline 12, and the second outlet 2123 is in communication with the second liquid outlet pipeline 13.

[0070] In the embodiment, the connecting position between the inlet 2121 and the second outlet 2123 is the first position A, and the connecting position between the inlet 2121 and the first outlet 2122 is the second position B, wherein the connecting member 2111 is movably arranged in the three-way valve body 212 and can drive the closing member 2112 to switch between the first position A and the second position B under the action of the driving unit 213.

[0071] As shown in FIG. 1, Figure 3 In the first position A, the closing member 2112 blocks the second outlet 2123, so that the inlet 2121 and the first outlet 2122 are in communication, thereby indirectly connecting the connecting pipeline 11 and the first liquid outlet pipeline 12, and indirectly disconnecting the connecting pipeline 11 and the second liquid outlet pipeline 13.

[0072] As shown in FIG. 1, Figure 4 In the second position B, the closing member 2112 blocks the first outlet 2122, so that the inlet 2121 and the second outlet 2123 are in communication, thereby indirectly connecting the connecting pipeline 11 and the second liquid outlet pipeline 13, and indirectly disconnecting the connecting pipeline 11 and the first liquid outlet pipeline 12.

[0073] The sample recovery device is connected with the liquid outlet end 1032 of the test tube 103. For the convenience of quick connection, the connecting assembly 10 further includes a locking member 15, as shown in Figure 1 The locking member 15 is used to lock and connect one end of the connecting pipeline 11 with the liquid outlet end 1032 of the test tube 103 in the density tester 101. The locking member 15 can be a clamp for connecting two pipe ports.

[0074] When it is necessary to discharge the sample or waste liquid, in order to realize the function of automatic liquid discharge, as shown in Figure 1 The connecting assembly 10 further includes a liquid discharge conveying pump 16 installed between one end of the connecting pipeline 11 and the liquid outlet end 1032 of the test tube 103 in the density tester 101. The liquid discharge conveying pump 16 is used to convey the liquid output from the liquid outlet end 1032 of the density tester 101 to the connecting pipeline 11.

[0075] Specifically, when it is necessary to discharge the sample, the sample is conveyed to the connecting pipeline 11 under the action of the liquid discharge conveying pump 16, and then conveyed to the first liquid outlet pipeline 12 under the action of the gating assembly 20. When it is necessary to discharge the waste liquid, the waste liquid is conveyed to the connecting pipeline 11 under the action of the liquid discharge conveying pump 16, and then conveyed to the second liquid outlet pipeline 13 under the action of the gating assembly 20, so as to realize the function of automatic liquid discharge.

[0076] The application further provides a test device 100 including the density tester 101 and the sample recovery device in the above embodiment. The test tube 103 in the density tester 101 has a liquid outlet end 1032 in communication with the connecting pipeline 11.

[0077] In an embodiment, the test tube 103 is in a U shape. One end of the test tube 103 is provided with a liquid inlet end 1031, and the other end of the test tube 103 is provided with a liquid outlet end 1032. The test tube 103 is arranged inside the tester body 102.

[0078] In the embodiment, at least part of the test tube 103 is located inside the tester body 102, so that the liquid inlet end 1031 and the liquid outlet end 1032 both extend to the outside of the tester body 102.

[0079] The test device 100 further includes a sample supply device 104 connected with the liquid inlet end 1031. The sample supply device 104 is used to provide a to-be-tested sample into the test tube 103 through the liquid inlet end 1031. The to-be-tested sample is an atomized substrate capable of generating aerosol. The sample supply device 104 can provide the to-be-tested sample into the test tube 103 through the liquid inlet end 1031 in a pumping manner.

[0080] In summary, the density tester and the sample recovery device provided by the utility model, through the on-off assembly selectively connecting or disconnecting the connecting pipeline and the first liquid outlet pipeline or the second liquid outlet pipeline, the sample and the waste liquid can be discharged from the first liquid outlet pipeline and the second liquid outlet pipeline, and the atomized substrate discharged from the first liquid outlet pipeline can be collected and utilized, so that waste is avoided.

[0081] The above application of specific examples is used for helping to understand the utility model, and does not limit the utility model. For the skilled person in the technical field to which the utility model belongs, according to the idea of the utility model, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A sample recovery device, used in conjunction with a density tester, characterized in that: include: A connecting assembly, comprising a connecting pipeline, a first liquid outlet pipeline, and a second liquid outlet pipeline, wherein one end of the connecting pipeline is connected to the liquid outlet end of the density tester, and the other end of the connecting pipeline is connected to one end of the first liquid outlet pipeline and one end of the second liquid outlet pipeline; the first liquid outlet pipeline is used to discharge samples, and the second liquid outlet pipeline is used to discharge waste liquid; A gating component is arranged on the first liquid outlet pipeline and the second liquid outlet pipeline, or at the connection position between the connecting pipeline and the first liquid outlet pipeline and the second liquid outlet pipeline; the gating component is used to selectively open or disconnect the connection between the connecting pipeline and the first liquid outlet pipeline or the second liquid outlet pipeline.

2. The sample recovery device according to claim 1, wherein The selection component includes a first control valve and a second control valve, the first control valve is arranged on the first liquid outlet pipeline, and the second control valve is arranged on the second liquid outlet pipeline. The first control valve is used to connect or disconnect the connection between the connecting pipeline and the first liquid outlet pipeline, and the second control valve is used to connect or disconnect the connection between the connecting pipeline and the second liquid outlet pipeline.

3. The sample recovery device according to claim 2, wherein: The gating assembly further includes a control module, which is electrically connected to the first control valve and the second control valve, respectively, and is used to control the working states of the first control valve and the second control valve.

4. The sample recovery device according to claim 1, wherein: The selection assembly includes a selection valve, which includes a movable sealing assembly and a three-way valve body. The three-way valve body is arranged at a connection position between the connecting pipeline and the first liquid outlet pipeline and the second liquid outlet pipeline, and is respectively connected to the other end of the connecting pipeline, one end of the first liquid outlet pipeline, and one end of the second liquid outlet pipeline. The movable sealing assembly is movably arranged in the three-way valve body and has a first position and a second position relative to the three-way valve body. When the movable closing component is in the first position, the three-way valve body connects the connecting pipeline with the first liquid outlet pipeline, and disconnects the connecting pipeline with the second liquid outlet pipeline; when the movable closing component is in the second position, the three-way valve body disconnects the connecting pipeline with the first liquid outlet pipeline, and connects the connecting pipeline with the second liquid outlet pipeline.

5. The sample recovery device according to claim 4, wherein: The gate assembly further includes a driving unit, and the movable closing assembly includes a connecting member and a closing member; the connecting member is movably arranged on the three-way valve body, and the closing member is mounted on the connecting member, and the driving unit is connected to the moving member for driving the moving member to drive the closing member to move and switch between the first position and the second position; The three-way valve body has an inlet, a first outlet, and a second outlet, and the inlet, the first outlet, and the second outlet are connected to each other. The inlet is connected to the connecting pipeline, the first outlet is connected to the first liquid outlet pipeline, and the second outlet is connected to the second liquid outlet pipeline; in the first position, the closing member blocks the second outlet to make the inlet and the first outlet conductive; in the second position, the closing member blocks the first outlet to make the inlet and the second outlet conductive.

6. The sample recovery device according to claim 1, wherein: The connecting assembly further includes a locking member, which is used to lock and connect one end of the connecting pipe to the liquid outlet end of the density tester; And / or, the connecting component further includes a liquid discharge delivery pump, which is installed between one end of the connecting pipeline and the liquid outlet end of the density tester, and is used to deliver the liquid output from the liquid outlet end of the density tester to the connecting pipeline.

7. The sample recovery device according to any one of claims 1 to 6, characterized in that: The sample recovery device further includes a sample collecting device, and the connecting component further includes a sample recovery pipeline, wherein the sample recovery pipeline is connected between the first liquid outlet pipeline and the sample collecting device, and the sample collecting device is used to collect the discharged sample; And / or, the sample recovery device further includes a waste liquid collection device, which is connected to the second liquid outlet pipeline and is used to collect the discharged waste liquid.

8. The sample recovery device according to claim 7, wherein: The sample recovery pipeline is detachably connected between the first liquid outlet pipeline and the sample collection device; The sample collection device includes a test tube or a centrifuge tube.

9. A testing device, characterized in that: It comprises a density tester and the sample recovery device according to any one of claims 1 to 8, wherein the density tester has a liquid outlet end, and the liquid outlet end is communicated with the connecting pipeline.

10. The testing device according to claim 9, wherein The testing equipment also includes a sample supply device. The density tester includes a tester body and a test tube. The test tube is U-shaped and is arranged inside the tester body. One end of the test tube is provided with the liquid outlet, and the other end of the test tube is also provided with a liquid inlet. The liquid inlet is connected to the sample supply device, and the sample supply device is used to provide samples.

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