A liquid sampling device and an oil sampler

Abstract

This disclosure discloses a liquid sampling device and an oil sampler. The liquid sampling device includes: an execution unit, the inlet of which is connected to the outlet of the liquid-using device; a control unit, the output of which is connected to the input of the execution unit; and multiple input units, the outputs of which are connected to the inputs of the control unit. The control unit responds to signals output by individual input units and controls the execution unit to start according to the time corresponding to the input unit, so that the execution unit quantitatively collects liquid samples from the liquid-using device. The liquid sampling device and oil sampler of this disclosure achieve automatic liquid sampling, effectively improving liquid sampling efficiency and reducing liquid sampling costs. Simultaneously, it enables timed and quantitative liquid sampling, avoiding the problem of collecting too much or too little liquid sample, and effectively improving the quality of liquid sampling.

Description

Technical Field

[0001] This disclosure relates to the field of liquid sampling technology, and more particularly to a liquid sampling device and an oil sampler. Background Technology

[0002] Oil is used in equipment for lubrication and cooling to ensure stable operation. However, after a certain period of use, the internal composition of the oil is prone to change, which leads to a decline in the performance of the oil. At this time, it is necessary to sample and test the oil.

[0003] Currently, oil sampling is mostly done manually, which is not only inefficient but also cannot achieve timed and quantitative sampling. This can easily lead to too much or too little oil sample being collected. Too much oil will result in waste, while too little will fail to meet the testing requirements. Therefore, improvements are needed. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this disclosure is to provide a liquid sampling device and an oil sampler.

[0006] To achieve the above objectives, the first aspect of this disclosure provides a liquid sampling device, comprising: an execution unit, the inlet of which is connected to the outlet of a liquid-using device; a control unit, the output of which is connected to the input of the execution unit; and a plurality of input units, the outputs of which are connected to the inputs of the control unit; wherein the control unit is configured to respond to a signal output by a single input unit and control the execution unit to open according to a time corresponding to the input unit, so that the execution unit quantitatively collects liquid samples from the liquid-using device.

[0007] Optionally, the plurality of input units include: a second input unit, the output terminal of which is connected to a second input terminal of the control unit, the second input unit corresponding to a second time; and a third input unit, the output terminal of which is connected to a third input terminal of the control unit, the third input unit corresponding to a third time; wherein the second time is less than the third time.

[0008] Optionally, the plurality of input units further includes: a first input unit, the output terminal of which is connected to a first input terminal of the control unit, the first input unit corresponding to a first time; wherein the first time is less than the second time.

[0009] Optionally, the first input unit, the second input unit, and the third input unit each include a self-reset switch.

[0010] Optionally, the execution unit includes a peristaltic pump, the inlet of which is connected to the outlet of the liquid-using device, and the input of which is connected to the output of the control unit.

[0011] Optionally, the liquid sampling device further includes a rigid tube, which is disposed between the inlet end of the peristaltic pump and the outlet end of the liquid-using device, the outlet end of the rigid tube being connected to the inlet end of the peristaltic pump, and the inlet end of the rigid tube extending to the bottom of the liquid-using device.

[0012] Optionally, the control unit includes: a plurality of input terminals, each of which is connected to the output terminals of a plurality of input units; a time control chip, the plurality of input terminals of which are connected to the plurality of input terminals; a plurality of relays, the input terminals of which are connected to the plurality of output terminals of the time control chip, and at most one of the relays is closed; and a plurality of output terminals, the plurality of output terminals being connected to the output terminals of the plurality of relays and the plurality of output terminals being connected to the input terminal of the peristaltic pump.

[0013] Optionally, the liquid sampling device further includes: a storage battery; a self-locking switch, the input terminal of which is connected to the output terminal of the storage battery, and the output terminal of which is connected to the input terminal of the control unit; and a charger, the output terminal of which is connected to the input terminal of the storage battery.

[0014] Optionally, the liquid sampling device further includes a container, in which the execution unit, the input unit, and the control unit are all disposed.

[0015] A second aspect of this disclosure provides an oil sampler, comprising: a liquid sampling device as provided in the first aspect of this disclosure.

[0016] The technical solution provided in this disclosure may include the following beneficial effects:

[0017] When the input unit receives an external command and outputs a signal, the control unit responds to the signal output by the input unit and controls the execution unit to open according to the time corresponding to the input unit. This allows the execution unit to quantitatively collect liquid samples from the liquid-using device, thereby achieving automatic liquid sampling, effectively improving liquid sampling efficiency and reducing liquid sampling costs. Furthermore, since the control unit controls the execution unit to open according to a fixed time, it can achieve timed and quantitative liquid sampling, avoiding the problem of collecting too much or too little liquid sample, effectively improving the quality of liquid sampling. Since different input units correspond to different times, by sending commands to different input units, different opening times of the execution unit can be controlled, thereby achieving flexible liquid sampling, effectively improving the adaptability of the liquid sampling device and making it more versatile.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of a liquid sampling device according to an embodiment of this disclosure;

[0021] Figure 2 This is a schematic diagram of the structure of the control unit in a liquid sampling device according to an embodiment of this disclosure;

[0022] Figure 3 This is a schematic diagram of the structure of a liquid sampling device according to an embodiment of the present disclosure during use;

[0023] Figure 4 This is a schematic diagram of the structure of the liquid sampling device in an embodiment of this disclosure when it is housed;

[0024] Figure 5 This is a schematic diagram of the structure of the liquid sampling device in an embodiment of this disclosure when it is housed;

[0025] In the diagram, the dashed arrows represent circuits, and the solid arrows represent liquid circuits.

[0026] As shown in the figure: 1. Execution unit, 11. Peristaltic pump;

[0027] 2. Control unit; 21. Input terminal; 22. Time control chip; 23. Relay; 24. Output terminal;

[0028] 3. Input unit; 31. First input unit; 32. Second input unit; 33. Third input unit;

[0029] 4. Rigid tube; 5. Storage battery; 6. Self-locking switch; 7. Charger.

[0030] 8. Container box; 81. Container body; 82. Cover plate; 821. Opening; 83. Container lid; 84. Handle; 85. Fastener;

[0031] 9. Liquid handling device. Detailed Implementation

[0032] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0033] like Figure 1 As shown in the present invention, an embodiment of a liquid sampling device is proposed, including an execution unit 1, a control unit 2, and a plurality of input units 3. The liquid inlet of the execution unit 1 is connected to the liquid outlet of the liquid dispensing device 9. The output of the control unit 2 is connected to the input of the execution unit 1. The output of the input units 3 is connected to the input of the control unit 2. The control unit 2 is used to respond to the signal output by a single input unit 3 and control the execution unit 1 to start according to the time corresponding to the input unit 3, so that the execution unit 1 quantitatively collects liquid samples from the liquid dispensing device 9.

[0034] It is understandable that when the input unit 3 receives an external command and outputs a signal, the control unit 2 responds to the signal output by the input unit 3 and controls the execution unit 1 to open according to the time corresponding to the input unit 3, so that the execution unit 1 can quantitatively collect liquid samples from the liquid-using device 9, thereby realizing automatic liquid sampling, effectively improving liquid sampling efficiency and reducing liquid sampling costs. At the same time, since the control unit 2 controls the execution unit 1 to open according to a fixed time, it can realize timed and quantitative liquid sampling, avoiding the problem of collecting too much or too little liquid sample, and effectively improving the quality of liquid sampling.

[0035] Since different input units 3 correspond to different times, different opening times of execution unit 1 can be controlled by sending instructions to different input units 3, thereby realizing flexible liquid sampling, effectively improving the adaptability of the liquid sampling device and making it more versatile.

[0036] It should be noted that, with the execution unit 1 unchanged, the liquid flow rate collected by the execution unit 1 also remains unchanged. Therefore, by controlling the start time of the execution unit 1, the amount of liquid sample collected can be precisely controlled, thereby achieving timed and quantitative collection.

[0037] The specific type of liquid can be set according to actual needs and there are no restrictions. For example, the liquid can be lubricating oil, turbine oil, etc., or other liquid fluids.

[0038] Liquid-using device 9 refers to a device that uses liquid. The specific type of liquid-using device 9 can be set according to actual needs and there are no restrictions on it. For example, liquid-using device 9 can be a steam turbine, a gas turbine, etc. Liquid-using device 9 can also be other equipment.

[0039] Since the liquid sampling device collects liquid samples from the liquid-using device 9 through the execution unit 1, its sampling angle can be any angle, which makes the liquid sampling device applicable to liquid-using devices 9 without a sampling valve at the bottom, thus expanding its application range.

[0040] The number of input units 3 can be set according to actual needs and there is no limit to it. For example, input units 3 can be two, three, four, etc.

[0041] like Figure 2 As shown, in some embodiments, the multiple input units 3 include a second input unit 32 and a third input unit 33. The output terminal of the second input unit 32 is connected to the second input terminal of the control unit 2, and the second input unit 32 corresponds to a second time. The output terminal of the third input unit 33 is connected to the third input terminal of the control unit 2, and the third input unit 33 corresponds to a third time. The second time is less than the third time.

[0042] Understandably, when the second input unit 32 receives an external command and outputs a signal, the control unit 2 responds to the signal output by the second input unit 32 and controls the opening of the execution unit 1 according to the second time corresponding to the second input unit 32, so that the execution unit 1 quantitatively collects liquid samples from the liquid-using device 9, thereby realizing automatic liquid sampling, effectively improving liquid sampling efficiency and reducing liquid sampling costs. At the same time, since the control unit 2 controls the opening of the execution unit 1 according to the fixed second time, it can realize timed and quantitative liquid sampling, avoiding the problem of collecting too much or too little liquid sample, and effectively improving the quality of liquid sampling.

[0043] When the third input unit 33 receives an external command and outputs a signal, the control unit 2 responds to the signal output by the third input unit 33 and controls the opening of the execution unit 1 according to the third time corresponding to the third input unit 33, so that the execution unit 1 quantitatively collects liquid samples from the liquid-using device 9, thereby realizing automatic liquid sampling, effectively improving liquid sampling efficiency and reducing liquid sampling costs. At the same time, since the control unit 2 controls the opening of the execution unit 1 according to a fixed third time, it can realize timed and quantitative liquid sampling, avoiding the problem of collecting too much or too little liquid sample, and effectively improving the quality of liquid sampling.

[0044] Since the second time is shorter than the third time, the liquid sampling device can collect two different liquid sample volumes, thus meeting different usage requirements and making the overall device more flexible and versatile.

[0045] It should be noted that the specific values ​​of the second and third times can be set according to actual needs, and there are no restrictions on them. For example, the second and third times can be determined based on the required liquid sample volume and through multiple calculations and experiments. The second time can be 30 seconds, and the liquid sample volume collected by the second input unit 32 can be 500 ml. The third time can be 60 seconds, and the liquid sample volume collected by the third input unit 33 can be 1000 ml.

[0046] like Figure 2 As shown, in some embodiments, the plurality of input units 3 further includes a first input unit 31, the output terminal of the first input unit 31 is connected to the first input terminal of the control unit 2, the first input unit 31 corresponds to a first time, wherein the first time is less than a second time.

[0047] Understandably, when the first input unit 31 receives an external command and outputs a signal, the control unit 2 responds to the signal output by the first input unit 31 and controls the execution unit 1 to open according to the first time corresponding to the first input unit 31, so that the execution unit 1 quantitatively collects liquid samples from the liquid-using device 9, thereby realizing automatic liquid sampling, effectively improving liquid sampling efficiency and reducing liquid sampling costs. At the same time, since the control unit 2 controls the execution unit 1 to open according to a fixed first time, it can realize timed and quantitative liquid sampling, avoiding the problem of collecting too much or too little liquid sample, and effectively improving the quality of liquid sampling.

[0048] Because the first time interval is shorter than the second time interval, the liquid sampling device can collect three different liquid sample volumes to meet different usage requirements, thus making the overall device more flexible and versatile.

[0049] It should be noted that the second input unit 32 and the third input unit 33 can be used for liquid sampling, and the first input unit 31 can be used for liquid sampling or for cleaning the liquid path; there is no limitation in this regard. For example, when the first input unit 31 receives an external command and outputs a signal, the control unit 2 responds to the signal output by the first input unit 31 and controls the execution unit 1 to open according to the first time corresponding to the first input unit 31, so that the execution unit 1 quantitatively collects liquid from the liquid-using device 9. The liquid cleans the liquid sampling device as it passes through the pipeline in the liquid sampling device. After the liquid sampling device is cleaned, it is then sampled through the second input unit 32 or the third input unit 33, thereby ensuring the cleanliness of the liquid sample and avoiding interference from impurities in the pipeline. The number of times the pipeline is cleaned by the first input unit 31 can be once or multiple times; there is no limitation in this regard.

[0050] The specific value of the first time can be set according to actual needs, and there is no restriction on it. For example, the first time can be determined based on the required liquid volume and through multiple calculations and experiments. The first time can be 9 seconds, and the liquid volume collected by the first input unit 31 can be 150 milliliters.

[0051] In some embodiments, the first input unit 31, the second input unit 32, and the third input unit 33 each include a self-reset switch.

[0052] Understandably, by setting a self-reset switch, operators can input commands to the first input unit 31, the second input unit 32, or the third input unit 33 simply by pressing the switch, thereby effectively improving the sampling efficiency of the liquid sampling device. Furthermore, after the operator presses the switch, the first input unit 31, the second input unit 32, or the third input unit 33 can self-reset, thus avoiding affecting the reuse of the liquid sampling device.

[0053] It should be noted that since the control unit 2 controls the opening of the execution unit 1 according to a fixed time, the execution unit 1 can be automatically turned off, so that the whole system and the self-reset function of the self-reset switch can be used together.

[0054] The self-reset switch can be reset to its initial state after being pressed. It only inputs a short signal to the control unit 2. The specific type of self-reset switch can be set according to actual needs and there are no restrictions on it.

[0055] The execution unit 1 is used to collect the liquid in the liquid-using device 9. The specific type of the execution unit 1 can be set according to actual needs and there is no restriction on it. For example, the execution unit 1 can be a pump body.

[0056] like Figure 2As shown, in some embodiments, the execution unit 1 includes a peristaltic pump 11, the inlet of which is connected to the outlet of the liquid dispensing device 9, and the input of which is connected to the output of the control unit 2.

[0057] Understandably, when the input unit 3 receives an external command and outputs a signal, the control unit 2 responds to the signal output by the input unit 3 and controls the peristaltic pump 11 to start according to the time corresponding to the input unit 3, so that the peristaltic pump 11 can quantitatively collect liquid samples from the liquid dispensing device 9, thereby realizing automatic liquid sampling, effectively improving liquid sampling efficiency and reducing liquid sampling costs. At the same time, since the control unit 2 controls the peristaltic pump 11 to start according to a fixed time, it can realize timed and quantitative liquid sampling, avoiding the problem of collecting too much or too little liquid sample, and effectively improving the quality of liquid sampling.

[0058] The peristaltic pump 11 ensures that the liquid sample does not come into contact with the pump body during transport, thus guaranteeing the cleanliness of the liquid sample, avoiding interference from impurities, and ensuring the accuracy of sample testing.

[0059] It should be noted that the peristaltic pump 11 pumps liquid by alternately squeezing and releasing the pump's elastic delivery hose. The specific type of peristaltic pump 11 can be set according to actual needs and is not limited thereto. For example, the peristaltic pump 11 can be a peristaltic pump 11 with a working voltage of 12V, power of 20W, flow rate of 2L / min, flow accuracy of 1%, pressure of 0.5Mpa, and negative pressure of 0.1Mpa. The hose in the peristaltic pump 11 can be a φ8×11 high-temperature resistant silicone tube.

[0060] The inlet and outlet of the peristaltic pump 11 are both flexible tubes, which makes it difficult to control when the inlet of the peristaltic pump 11 is inserted into the liquid-using device 9, thus affecting the sampling efficiency of the liquid sampling device.

[0061] like Figure 3 As shown, in some embodiments, the liquid sampling device further includes a rigid tube 4, which is disposed between the inlet end of the peristaltic pump 11 and the outlet end of the liquid-using device 9. The outlet end of the rigid tube 4 is connected to the inlet end of the peristaltic pump 11, and the inlet end of the rigid tube 4 extends to the bottom of the liquid-using device 9.

[0062] Understandably, the rigid tube 4 allows the inlet end of the peristaltic pump 11 to be easily adjusted when it is inserted into the liquid-using device 9, thereby ensuring that the peristaltic pump 11 can accurately extract the liquid from the liquid-using device 9, and thus ensuring that the liquid sampling device has high sampling efficiency.

[0063] It should be noted that the specific type of hard pipe 4 can be set according to actual needs, and there are no restrictions on it. For example, hard pipe 4 can be a copper pipe.

[0064] The connection method between the rigid tube 4 and the inlet end of the peristaltic pump 11 can be set according to actual needs and there are no restrictions. For example, the rigid tube 4 can be connected to the inlet end hose of the peristaltic pump 11 through a quick connector, or the rigid tube 4 can be directly inserted into the inlet end hose of the peristaltic pump 11.

[0065] The specific type of control unit 2 can be set according to actual needs and there are no restrictions on it. For example, control unit 2 can be a time controller.

[0066] like Figure 2 As shown, in some embodiments, the control unit 2 includes multiple input terminals 21, a time control chip 22, multiple relays 23, and multiple output terminals 24. The multiple input terminals 21 are respectively connected to the output terminals of multiple input units 3. The multiple input terminals of the time control chip 22 are connected to the multiple input terminals 21. The input terminals of the multiple relays 23 are respectively connected to the multiple output terminals of the time control chip 22, and at most one relay 23 is closed. The multiple output terminals 24 are respectively connected to the output terminals of the multiple relays 23. The multiple output terminals 24 are connected to the input terminals of the peristaltic pump 11.

[0067] It is understandable that when the input unit 3 receives external instructions and outputs signals, the signals enter the time control chip 22 from the corresponding input terminal 21. The time control chip 22 controls the closing of the corresponding relay 23 according to the corresponding time. After the relay 23 is closed, it continuously outputs signals to the peristaltic pump 11 during the time period so that the peristaltic pump 11 remains on during the time period, thereby realizing automatic timed and quantitative sampling of liquid, which effectively improves the efficiency and quality of liquid sampling.

[0068] The multiple input terminals 21, time control chip 22, multiple relays 23 and multiple output terminals 24 constitute the time controller, which not only ensures stable control of the peristaltic pump 11, but is also more convenient to use and has a lower cost.

[0069] It should be noted that the specific type of time controller can be set according to actual needs, and there are no restrictions on it. For example, the time controller also includes a display, clock, etc. The time control chip 22 is a microcontroller, the input voltage of the time controller is 12V, and the output power is 60W.

[0070] The number of input terminals 21 corresponds one-to-one with the number of input units 3, the number of relays 23 corresponds one-to-one with the number of input terminals 21, and the number of output terminals 24 corresponds one-to-one with the number of relays 23. Each of the input terminals 21, relays 23, and output terminals 24 can be three.

[0071] The implementation method of closing at most one relay 23 can be set according to actual needs, and there is no restriction on it. For example, at most one relay 23 can be closed by interlocking multiple relays 23.

[0072] like Figure 2 and Figure 3 As shown, in some embodiments, the liquid sampling device further includes a battery 5, a self-locking switch 6, and a charger 7. The input terminal of the self-locking switch 6 is connected to the output terminal of the battery 5, the output terminal of the self-locking switch 6 is connected to the input terminal of the control unit 2, and the output terminal of the charger 7 is connected to the input terminal of the battery 5.

[0073] Understandably, when the self-locking switch 6 is turned on, the battery 5 supplies power to the control unit 2 to ensure the stable operation of the liquid sampling device during use. When the self-locking switch 6 is turned off, the control unit 2 is de-energized to ensure the safe storage of the liquid sampling device.

[0074] When the battery 5 is low on power, it can be replenished by the charger 7 to ensure that the battery 5 continuously supplies power to the control unit 2.

[0075] Therefore, the use of the liquid sampling device is made more convenient and safer by the inclusion of the battery 5, the self-locking switch 6, and the charger 7.

[0076] It should be noted that the specific type of battery 5 can be set according to actual needs, and there are no restrictions on it. For example, battery 5 can be a 12V, 5000mAh rechargeable battery.

[0077] The specific type of charger 7 can be set according to actual needs and there is no restriction. For example, charger 7 can be a charger with a maximum output current of 1A. Charger 7 and battery 5 can be directly connected or connected in a detachable manner through connectors.

[0078] The self-locking switch 6 cannot be reset to its initial state after being pressed. It can only be reset to its initial state when it is pressed again. The specific type of the self-locking switch 6 can be set according to actual needs and there are no restrictions on it.

[0079] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the liquid sampling device further includes a container 8, and the execution unit 1, the input unit 3 and the control unit 2 are all disposed in the container 8.

[0080] Understandably, the inclusion of the housing 8 not only effectively protects the execution unit 1, input unit 3, and control unit 2, ensuring the stable operation of the liquid sampling device, but also facilitates the carrying of the liquid sampling device, making its use more convenient.

[0081] It should be noted that the arrangement of the execution unit 1, input unit 3, and control unit 2 within the housing 8 can be configured according to actual needs and is not limited thereto. For example, multiple input terminals 21, time control chip 22, multiple relays 23, and multiple output terminals 24 are integrated on the circuit board, and the first input unit 31, second input unit 32, and third input unit 33 are integrated on the input board. The circuit board, peristaltic pump 11, and input board can be fixed inside the housing 8 by screws, clips, or other means. The inlet and outlet ends of the peristaltic pump 11 can be fixed outside the housing 8 by bolts, clips, or other means. The input end of the battery 5 can be fixed outside the housing 8 by bolts, clips, or other means.

[0082] The specific type of the container 8 can be set according to actual needs and is not limited thereto. For example, the container 8 may include a container body 81, a cover plate 82, a lid 83, and a handle 84. The container body 81 is provided with a receiving groove, and the circuit board, peristaltic pump 11, and input plate are all set in the receiving groove. The cover plate 82 is provided with an opening 821 and is set in the groove of the receiving groove, and the input plate is located in the opening 821. The lid 83 is hinged to the container body 81 and is closed to the groove of the receiving groove by a fastener 85. The handle 84 is provided on the container body 81.

[0083] Understandably, the housing 81 and the cover 83 facilitate the use and storage of the liquid sampling device while effectively protecting the execution unit 1, input unit 3, and control unit 2, ensuring the stable operation of the liquid sampling device. Furthermore, the cover 82 allows the control unit 2 and execution unit 1, which are used for automatic operation, to be completely enclosed within the housing 81, while the input unit 3, which needs to receive external commands, can be exposed through the opening 821, thereby further improving the ease of use and stability of the liquid sampling device.

[0084] The handle 84 makes it easier for operators to carry the liquid sampling device by lifting it, thus making the use of the liquid sampling device more convenient.

[0085] The way the cover plate 82 is set in the groove of the receiving slot can be set according to actual needs, and there is no restriction on it. For example, the cover plate 82 can be set in the box body 81 by means of screw fixing, buckle fixing, etc.

[0086] The hinge method of the lid 83 on the box body 81 can be set according to actual needs and is not limited. For example, one end of the lid 83 is connected to one end of the box body 81 by a hinge, and the other end of the lid 83 is connected to the other end of the box body 81 by a fastener 85. The specific type of the fastener 85 can be set according to actual needs and is not limited.

[0087] The way the handle 84 is set on the housing 81 can be set according to actual needs, and there are no restrictions on it. For example, the handle 84 can be fixed on the housing 81, or the handle 84 can be hinged to the housing 81.

[0088] This disclosure also proposes an oil sampler, including a liquid sampling device as described in the embodiments of this disclosure.

[0089] Understandably, when input unit 3 receives external instructions and outputs signals, control unit 2 responds to the signals output by input unit 3 and controls the opening of execution unit 1 according to the time corresponding to input unit 3, so that execution unit 1 quantitatively collects oil samples from liquid-using device 9, thereby realizing automatic oil sampling, effectively improving oil sampling efficiency and reducing oil sampling costs. At the same time, since control unit 2 controls the opening of execution unit 1 according to a fixed time, it can realize timed and quantitative oil sampling, avoiding the problem of collecting too many or too few oil samples, and effectively improving the oil sampling quality.

[0090] Since different input units 3 correspond to different times, different opening times of execution unit 1 can be controlled by sending instructions to different input units 3, thereby realizing flexible oil sampling, effectively improving the adaptability of the oil sampling device and making it more versatile.

[0091] It should be noted that the specific type of oil sampler can be set according to actual needs, and there are no restrictions on it.

[0092] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0093] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A liquid sampling device, characterized in that, include: An execution unit, wherein the liquid inlet of the execution unit is connected to the liquid outlet of the liquid dispensing device; A control unit, wherein the output terminal of the control unit is connected to the input terminal of the execution unit; Multiple input units, the output terminals of which are connected to the input terminals of the control unit; The control unit is used to respond to the signal output by a single input unit and control the activation of the execution unit according to the time corresponding to the input unit, so that the execution unit can quantitatively collect liquid samples from the liquid dispensing device. The execution unit includes: A peristaltic pump, wherein the inlet end of the peristaltic pump is connected to the outlet end of the liquid dispensing device, and the input end of the peristaltic pump is connected to the output end of the control unit; The liquid sampling device further includes: Storage battery; A self-locking switch, wherein the input terminal of the self-locking switch is connected to the output terminal of the battery, and the output terminal of the self-locking switch is connected to the input terminal of the control unit; A charger, wherein the output terminal of the charger is connected to the input terminal of the battery; The plurality of input units include: The second input unit has its output terminal connected to the second input terminal of the control unit, and the second input unit corresponds to the second time. The third input unit, the output of which is connected to the third input of the control unit, corresponds to the third time. Wherein, the second time is shorter than the third time; The plurality of input units also include: A first input unit, the output terminal of which is connected to the first input terminal of the control unit, and the first input unit corresponds to a first time. Wherein, the first time is shorter than the second time; The first input unit, the second input unit, and the third input unit all include: a self-reset switch; The control unit includes: Multiple input terminals, each of which is connected to the output terminal of a plurality of input units; A time control chip, wherein multiple input terminals of the time control chip are connected to multiple input terminals; Multiple relays, the input terminals of the multiple relays are respectively connected to multiple output terminals of the time control chip, and at most one of the relays is closed; Multiple output terminals are provided, each of which is connected to the output terminals of a plurality of relays and to the input terminal of the peristaltic pump.

2. The liquid sampling device according to claim 1, characterized in that, The liquid sampling device further includes: A rigid tube is disposed between the inlet end of the peristaltic pump and the outlet end of the liquid-using device, the outlet end of the rigid tube is connected to the inlet end of the peristaltic pump, and the inlet end of the rigid tube extends to the bottom of the liquid-using device.

3. The liquid sampling device according to claim 1, characterized in that, The liquid sampling device further includes: The receiving box contains the execution unit, the input unit, and the control unit.

4. An oil sampler, characterized in that, include: The liquid sampling device as described in any one of claims 1-3.

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