Oil sampling device and oil sampling assembly

Abstract

The application discloses a kind of oil sampling device and oil sampling assembly, the oil sampling device includes oil extraction pipe, valve core and control assembly, oil extraction pipe has flow passage, the oil inlet of flow passage can be communicated oil tank, the oil outlet of flow passage can be communicated oil extraction container, valve core is located in oil extraction pipe and relatively movable to oil extraction pipe to communicate or disconnect flow passage, control assembly includes detection piece and regulator, detection piece is connected with regulator, and detection piece can detect the oil extraction amount of oil extraction pipe, and adjusting piece can control valve core to move according to the detection information of detection piece to disconnect flow passage after oil extraction amount meets standard.The oil sampling device of the application can close oil tank oil outlet in time after the amount of extracted oil meets sampling requirements, realize automatic on-demand collection of detection oil sample in oil-consuming equipment, avoid pollution environment caused by oil spill from oil extraction container during oil extraction.

Description

Technical Field

[0001] This invention relates to the field of equipment testing technology, and more specifically, to an oil sampling device and an oil sampling assembly. Background Technology

[0002] In hydroelectric power plants, the operation of power generation equipment requires the use of a large amount of oil, including turbine oil, gear oil, and transformer oil. These oils play a role in lubrication, heat dissipation, and insulation in the power generation equipment. Their quality is directly related to the safety and stability of the power generation equipment operation. Therefore, power plant staff need to regularly extract oil samples from the oil tanks of various power generation equipment for testing and analysis to ensure that the quality of the operating oil meets the usage requirements.

[0003] In related technologies, when extracting oil samples from the tank, oil often overflows into the extraction bottle and pollutes the environment because power plant workers cannot close the oil outlet in time. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an oil sampling device that addresses the defects and deficiencies of the prior art. The oil sampling device can close the oil tank outlet in time after the amount of oil extracted meets the sampling requirements, thereby realizing automated on-demand collection of test oil samples from oil-consuming equipment and avoiding oil overflow from the oil sampling container during the oil sampling process, which would cause environmental pollution.

[0005] An embodiment of the present invention also proposes an oil sampling assembly.

[0006] The oil sampling device of this invention includes: an oil sampling tube and a valve core. The oil sampling tube has a flow channel, the inlet of which can be connected to an oil tank, and the outlet of which can be connected to an oil sampling container. The valve core is disposed inside the oil sampling tube and is movable relative to the oil sampling tube to connect or disconnect the flow channel. A control component includes a detection element and a regulator. The detection element is connected to the regulator, and the detection element can detect the amount of oil sampled by the oil sampling tube. The regulator can control the valve core to move according to the detection information of the detection element to disconnect the flow channel after the amount of oil sampled reaches the target.

[0007] According to the oil sampling device of the present invention, the oil sampling pipe forms a flow channel for transporting oil samples between the oil tank and the oil sampling container. When extracting oil samples, the regulator can control the valve core to connect the flow channel. At this time, the oil in the oil tank flows into the flow channel spontaneously under pressure and then reaches the oil sampling container. During this process, the control component can measure the total amount of oil flowing through the flow channel through the detection element. When the total amount of oil meets the oil sampling requirements, the detector can transmit a "close" signal to the regulator. The regulator then controls the valve core to disconnect the flow channel, thereby closing the oil tank outlet. Thus, the oil sampling device of this application can automatically close the oil tank outlet after the oil sample in the oil sampling container meets the oil quantity requirements, realizing the collection of test oil samples from oil-consuming equipment on demand, and avoiding oil overflow from the oil sampling container during the oil sampling process, which would cause environmental pollution.

[0008] In addition, the oil sampling device of this application can also adjust the oil flow rate of the oil sampling pipe by changing the size of the flow channel through the valve core, so as to avoid the oil from splashing everywhere due to the excessive oil output speed.

[0009] In some embodiments, the oil extraction pipe includes a first pipe body and a second pipe body. The first pipe body is connected to the oil extraction container. The outer circumferential surface of the second pipe body is sealed to the inner circumferential surface of the first pipe body. The second pipe body has a communication port at one end near the first pipe body, which is connected to the first pipe body. The valve core is disposed in the second pipe body and is movable along the length direction of the second pipe body to open or close the communication port.

[0010] In some embodiments, the second tube includes a tapered section fitted within the first tube, and the cross-sectional area of ​​the tapered section gradually increases in the direction away from the communication opening.

[0011] In some embodiments, the valve core includes a conical valve head that can open and close the communication port, and the cross-sectional area of ​​the conical valve head gradually increases in the direction away from the communication port.

[0012] In some embodiments, the second pipe body further includes a cylindrical section connected to the end of the tapered section away from the communication port, the outer circumferential surface of the cylindrical section being threaded, and the cylindrical section being threadedly connected to the inner circumferential surface of the first pipe body.

[0013] In some embodiments, the oil extraction tube further includes a cover plate, which is connected to the end of the second tube body away from the communication port and has an oil passage hole. The end of the valve core away from the communication port is connected to the cover plate via an elastic element, which has a force that drives the valve core to move toward the communication port.

[0014] In some embodiments, the regulator includes a drive member and a pusher member, the drive member being connected to the detection member, the pusher member being movably mounted in the first tube body, and the drive member being capable of driving the pusher member to extend into or retract from the communication port.

[0015] In some embodiments, the driving member is an electromagnet, and the pushing member includes a magnetic fixing block and a push rod disposed on the magnetic fixing block, the push rod being able to extend into or retract from the communication port.

[0016] In some embodiments, the detection element includes a float baffle connected to the inner wall of the oil tank, a float suspended below the float baffle, and a contact sensor. The contact sensor is disposed on the float baffle, and when the float touches the float baffle and triggers the contact sensor, the contact sensor can transmit a power-off signal to the electromagnet.

[0017] The oil sampling assembly of this invention includes: a first tube and a second tube. One end of the first tube is connected to an oil sampling container. The second tube includes a conical section and a cylindrical section. The conical section is fitted inside the first tube. The cylindrical section is screwed onto the opening at the other end of the first tube, and the outer circumferential surface of the cylindrical section is provided with an external thread. The inner circumferential surface of the first tube is provided with an internal thread that mates with the external thread. The cross-sectional area of ​​the conical section gradually increases along the direction close to the cylindrical section, and the top of the conical section is provided with a communication port communicating with the first tube. A cover plate and a valve core are also included. The cover plate is located at the end of the cylindrical section away from the conical section and has an oil passage hole. The valve core is movably disposed inside the second tube along its length. The end of the valve core away from the communication port is connected to the cover plate via an elastic element, which has a force that drives the valve core to move toward the communication port. A push rod is located inside the first tube and opposite to the communication port, and the cross-sectional area of ​​the push rod is smaller than the cross-sectional area of ​​the communication port.

[0018] According to the oil sampling assembly of the present invention, the threaded first and second pipe bodies form a highly sealed oil flow channel between the oil supply source and the oil sampling container. Furthermore, by screwing the first pipe body, a pusher can be inserted into the communication port of the second pipe body, thereby pushing the valve core to overcome the elastic force of the elastic element to open the communication hole, allowing oil to flow into the oil sampling container. After oil sampling is completed, the first pipe body can be screwed in the opposite direction, the pusher exits the communication port, and the valve core re-closes the communication port under the restoring action of the elastic element, preventing further oil outflow. Thus, the oil sampling assembly of the present invention conveniently and quickly realizes oil sampling operations, improves oil sampling efficiency, and avoids oil overflowing from the oil sampling container during the sampling process, thus preventing environmental pollution and demonstrating high applicability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an oil sampling device according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the cover plate of the oil sampling device according to an embodiment of the present invention.

[0021] Figure label:

[0022] Oil intake pipe 1, first pipe body 11, second pipe body 12, conical section 121, cylindrical section 122, valve core 2, conical valve head 21, cover plate 22, elastic element 23, oil passage hole 24, control component 3, detection element 31, float 311, float baffle 312, contact sensor 313, regulator 32, drive element 321, push element 322, magnetic fixing block 3221, push rod 3222, start button 323, oil intake container 4, oil tank 5. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figure 1 and Figure 2 As shown, the oil sampling device of this embodiment includes an oil sampling pipe 1, a valve core 2, and a control component 3.

[0025] Specifically, the oil extraction pipe 1 has a flow channel. The oil inlet of the flow channel can be connected to the oil tank 5, and the oil outlet of the flow channel can be connected to the oil extraction container 4. The valve core 2 is located inside the oil extraction pipe 1 and can move relative to the oil extraction pipe 1 to connect or disconnect the flow channel. The control component 3 includes a detection element 31 and a regulator 32. The detection element 31 is connected to the regulator 32, and the detection element 31 can detect the amount of oil extracted by the oil extraction pipe 1. The regulator can control the valve core 2 to move according to the detection information of the detection element 31 so as to disconnect the flow channel after the amount of oil extracted reaches the target.

[0026] In other words, the oil sampling pipe 1 constructs a flow channel for transporting oil samples between the oil tank 5 and the oil sampling container 4. When extracting oil samples, the regulator 32 can be used to control the valve core 2 to connect the flow channel. At this time, the oil in the oil tank 5 flows into the flow channel spontaneously under pressure and then reaches the oil sampling container 4. During this process, the detection element 31 can detect the total amount of oil flowing through the flow channel. When the total amount of oil meets the oil sampling requirements, the detector can transmit a "close" signal to the regulator. The regulator can control the valve core 2 to disconnect the flow channel in time, thereby closing the oil outlet of the oil tank 5. Thus, the oil sampling device of this application can automatically close the oil outlet of the oil tank 5 after the oil sample in the oil sampling container 4 meets the oil quantity requirements, avoiding oil overflow from the oil sampling container 4 and causing environmental pollution, and realizing the collection of test oil samples from oil-consuming equipment on demand.

[0027] Understandably, the regulator 32 can also adjust the oil flow rate of the oil pipe 1 by changing the size of the flow channel through the valve core 2, so as to avoid the oil from splashing everywhere due to the excessively fast oil output speed.

[0028] According to the oil sampling device of the present invention, the oil sampling pipe forms a flow channel for transporting oil samples between the oil tank and the oil sampling container. When extracting oil samples, the regulator can control the valve core to connect the flow channel. At this time, the oil in the oil tank flows into the flow channel spontaneously under pressure and then reaches the oil sampling container. During this process, the control component can measure the total amount of oil flowing through the flow channel through the detection element. When the total amount of oil meets the oil sampling requirements, the detector can transmit a "close" signal to the regulator. The regulator then controls the valve core to disconnect the flow channel, thereby closing the oil tank outlet. Thus, the oil sampling device of this application can automatically close the oil tank outlet after the oil sample in the oil sampling container meets the oil quantity requirements, realizing the collection of test oil samples from oil-consuming equipment on demand, and avoiding oil overflow from the oil sampling container during the oil sampling process, which would cause environmental pollution.

[0029] In addition, the oil sampling device of this application can also adjust the oil flow rate of the oil sampling pipe by changing the size of the flow channel through the valve core, so as to avoid the oil from splashing everywhere due to the excessive oil output speed.

[0030] Furthermore, such as Figure 1 As shown, the oil intake pipe 1 includes a first pipe body 11 and a second pipe body 12. The first pipe body 11 is connected to the oil intake container 4. The outer circumferential surface of the second pipe body 12 is sealed to the inner circumferential surface of the first pipe body 11. The end of the second pipe body 12 near the first pipe body 11 has a communication port that communicates with the first pipe body 11. The valve core 2 is located inside the second pipe body 12 and can move along the length of the second pipe body 12 to open or close the communication port.

[0031] It is understandable that the first tube 11 can be installed on the oil sampling container 4, and the second tube 12 can be installed on the oil tank 5. When collecting oil samples, the first tube 11 can be fitted onto the outer circumference of the second tube 12 to achieve communication between the oil tank 5 and the oil sampling container 4. At this time, the valve core 2 inside the second tube 12 moves to the right (e.g., Figure 1 (As shown in the left and right directions) Open the connecting port, and the oil can flow from the oil tank 5 into the second pipe body 12, then through the connecting port into the first pipe body 11, and finally into the oil taking container 4. When the oil taking volume meets the requirements, the valve core 2 in the second pipe body 12 moves to the left to close the connecting port to prevent the oil tank 5 from continuing to output oil.

[0032] Furthermore, such as Figure 1 As shown, the second tube 12 includes a tapered section 121 that fits into the first tube 11, and the cross-sectional area of ​​the tapered section 121 gradually increases in the direction away from the communication opening.

[0033] It is understandable that the conical section 121 facilitates the insertion of the second tube 12 into the first tube 11, thereby reducing the operational difficulty of assembling the oil sampling device. At the same time, the flow channel formed by the conical section 121 is also conical, which can generate a throttling and pressurizing effect on the oil in the second tube 12, accelerate the oil outflow speed, and improve the working efficiency of oil sampling.

[0034] Furthermore, such as Figure 1 As shown, the valve core 2 includes a conical valve head 21, which can open and close the communication port, and the cross-sectional area of ​​the conical valve head 21 gradually increases in the direction away from the communication port.

[0035] It is understandable that the conical valve head 21 can form a wedge fit with the conical flow channel formed by the conical section 121, thereby improving the reliability of the valve core 2 in closing the connection port.

[0036] Furthermore, such as Figure 1 As shown, the second tube 12 also includes a cylindrical section 122, which is connected to the end of the tapered section 121 away from the communication port. The outer circumferential surface of the cylindrical section 122 is threaded, and the cylindrical section 122 is threadedly connected to the inner circumferential surface of the first tube 11.

[0037] In other words, a detachable sealed connection is achieved between the first pipe body 11 and the second pipe body 12, which makes it easier for testing personnel to disassemble and clear the blockage in the oil extraction pipe 1 in a timely manner, thereby improving work efficiency.

[0038] Furthermore, such as Figure 1 and Figure 2 As shown, the oil pipe 1 also includes a cover plate 22, which is connected to the end of the second pipe body 12 away from the communication port and has an oil passage hole 24. The end of the valve core 2 away from the communication port is connected to the cover plate 22 through an elastic element, which has a force to drive the valve core 2 toward the communication port.

[0039] In other words, the elastic element is connected to one end of the cover plate 22 to form a fixed end, and the other end of the elastic element connected to the valve core 2 is a free end. When it is necessary to open the connection port, the valve core 2 moves to the right under the action of the regulator 32, and the elastic element is in a compressed state. When it is necessary to close the connection port, the valve core 2 can automatically move to the left under the action of elastic force until the connection port is closed, thereby simplifying the operation steps of extracting oil samples and improving work efficiency.

[0040] Preferably, the outer periphery of the cover plate 22 can be connected to the inner periphery of the second pipe body 12, thereby enhancing the firmness of the cover plate 22 installation. In this case, the oil passage hole 24 of the cover plate 22 provides a channel for oil flow and avoids blockage.

[0041] Furthermore, such as Figure 1As shown, the regulator 32 includes a drive member 321 and a pusher member 322. The drive member 321 is connected to the detection member 31. The pusher member 322 is movably installed inside the first tube 11, and the drive member 321 can drive the pusher member 322 to extend into or exit the communication port.

[0042] Understandably, when the drive member 321 drives the push member 322 to extend into the connecting port, the push member 322 pushes the valve core 2 in the oil taking pipe 1 to move to the right against the elastic force of the elastic element, thereby opening the connecting port. When the drive member 321 drives the push member 322 to exit the connecting port, the valve core 2 can close the connecting port again under the restoring action of the elastic element. Thus, the regulator 32 can automatically open the connecting port to take oil. When the drive member 321 receives the "close" signal from the detection member 31, the drive member 321 can also drive the push member 322 to quickly exit the connecting port, thereby simply and quickly realizing the opening and closing of the connecting port and improving the automation performance of this device.

[0043] It should be noted that the start button 323 of the drive unit 321 should be located on the outer wall of the first tube 11, so as to facilitate the operation by the staff.

[0044] Furthermore, such as Figure 1 As shown, the driving component 321 is an electromagnet, and the pushing component 322 includes a magnetic fixing block 3221 and a push rod 3222 disposed on the magnetic fixing block 3221. The push rod 3222 can extend into or retract from the communication port.

[0045] It should be noted that the cross-sectional area of ​​the pusher 322 must be smaller than the cross-sectional area of ​​the connecting port, so that the connecting port will not be blocked when the pusher 322 is inserted into the connecting port.

[0046] In other words, the insertion or withdrawal of the push rod 3222 can be achieved by utilizing the attraction between opposite poles and the repulsion between like poles of magnets. When the electromagnet and the magnetic fixing block 3221 have the same pole, the magnetic fixing block 3221 moves to the right under the repulsive force of the electromagnet, thereby quickly pushing the push rod 3222 into the communication port. Conversely, when the electromagnet and the magnetic fixing block 3221 have different poles, the magnetic fixing block 3221 moves to the left under the attractive force of the electromagnet, thereby quickly pulling the push rod 3222 out of the communication port, thus improving the control efficiency of this device.

[0047] Furthermore, such as Figure 1 As shown, the detection component 31 includes a float baffle 312 connected to the inner wall of the oil container 4, a float 311 suspended below the float baffle 312, and a contact sensor 313. The contact sensor 313 is located on the float baffle 312, and when the float 311 touches the float baffle 312 to trigger the contact sensor 313, the contact sensor 313 can transmit a power-off signal to the electromagnet.

[0048] In other words, the float baffle 312 is located at a certain height on the inner wall of the oil container 4. When oil is introduced into the oil container 4, the float 311 can rise with the oil level. When the oil level is the same height as the float baffle 312, the float 311 touches the contact sensor 313 on the float baffle 312. At this time, the contact sensor 313 sends a "close" signal to the electromagnet. The electromagnet changes the direction of magnetic force to attract the magnetic fixing block 3221 to move to the left, thereby driving the top rod 3222 to push out of the communication port. The valve core 2 closes the communication port. Thus, this device can close the communication port in time after the oil volume meets the requirements, prevent the oil tank 5 from continuing to dispense oil, and avoid oil overflowing from the oil container 4.

[0049] like Figure 1 and Figure 2 As shown, the oil sampling assembly of this embodiment includes a first tube 11, a second tube 12, a cover plate 22, a valve core 2, and a push rod.

[0050] Specifically, one end of the first pipe body 11 is connected to the oil receiving container 4. The second pipe body 12 includes a tapered section 121 and a cylindrical section 122. The tapered section 121 fits inside the first pipe body 11. The cylindrical section 122 is screwed into the opening at the other end of the first pipe body 11, and its outer circumferential surface is provided with external threads. The inner circumferential surface of the first pipe body 11 is provided with internal threads that mate with the external threads. The cross-sectional area of ​​the tapered section 121 gradually increases along the direction close to the cylindrical section 122, and the top of the tapered section 121... The end is provided with a communication port that communicates with the first pipe body 11. The cover plate 22 is located at the end of the cylindrical section 122 away from the conical section 121 and has an oil passage hole 24. The valve core 2 is movably located in the second pipe body 12 along the length direction of the second pipe body 12. The end of the valve core 2 away from the communication port is connected to the cover plate 22 through an elastic element. The elastic element has a force to drive the valve core 2 to move toward the communication port. The push rod is located in the first pipe body 11 and is opposite to the communication port. The cross-sectional area of ​​the push rod is smaller than the cross-sectional area of ​​the communication port.

[0051] To facilitate understanding of the usage of the oil sampling assembly of this application, its structure will now be described. When using the oil sampling assembly of this application to collect oil, firstly, the conical section 121 of the second tube 12 is inserted into the first tube 11, and then the first tube 11 is rotated clockwise to fit onto the cylindrical section 122 of the second tube 12 (e.g., ...). Figure 1(As shown in the left-right direction), the first pipe 11 and the second pipe 12, connected by threads, construct a highly sealed oil flow channel between the oil supply source and the oil sampling container 4. Then, by continuing to turn the first pipe 11 to the right, the push rod inside the first pipe 11 will pass through the connecting port and push the valve core 2 to move to the right against the elastic force of the elastic element, thereby opening the connecting port to connect the oil supply source and the oil sampling container 4. The oil flows from the oil supply source to the oil sampling container 4. When the oil in the oil sampling container 4 meets the oil sampling requirements, the first pipe 11 can be turned to the left. Under the restoring action of the elastic element, the valve core 2 will re-close the connecting port, thereby preventing the oil from the oil supply source from continuing to flow to the oil sampling container 4. Thus, the oil sampling component of this application conveniently and quickly realizes the oil sampling operation and improves the oil sampling efficiency.

[0052] It should be noted that during the process of the valve core 2 moving to the right to open the communication port, the valve core 2 is always compressing the elastic element. At this time, the cover plate 22, which is fixedly installed in the cylinder section 122, forms the fixed end of the elastic element. Thus, the elastic element can always maintain its position during the compression process, thereby ensuring that the valve core 2 can close the communication port after the elastic element returns to its original state. The oil passage hole 24 on the cover plate 22 allows oil to flow, avoiding the blockage of the second pipe 12 due to the cover plate 22. Preferably, the outer periphery of the cover plate 22 is connected to the inner periphery of the cylinder section 122, thereby improving the firmness of the cover plate 22 installation.

[0053] It is understandable that when the oil flows from the cylinder section 122 to the conical section 121, the reduced cross-sectional area of ​​the flow channel will have a throttling and pressurizing effect on the oil, thereby accelerating the oil flow rate and improving the efficiency of oil extraction.

[0054] It is understandable that the opening degree of the connecting port can be adjusted by controlling the number of threads of the first pipe 11 screwed on the cylinder section 122, thereby changing the oil flow rate and avoiding splashing due to excessive oil flow.

[0055] According to the oil sampling assembly of the present invention, the threaded first and second pipe bodies form a highly sealed oil flow channel between the oil supply source and the oil sampling container. Furthermore, by screwing the first pipe body, a pusher can be inserted into the communication port of the second pipe body, thereby pushing the valve core to overcome the elastic force of the elastic element to open the communication hole, allowing oil to flow into the oil sampling container. After oil sampling is completed, the first pipe body can be screwed in the opposite direction, the pusher exits the communication port, and the valve core re-closes the communication port under the restoring action of the elastic element, preventing further oil outflow. Thus, the oil sampling assembly of the present invention conveniently and quickly realizes oil sampling operations, improves oil sampling efficiency, and avoids oil overflowing from the oil sampling container during the sampling process, thus preventing environmental pollution and demonstrating high applicability.

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An oil sampling device, characterized in that, include: The oil extraction pipe has a flow channel, the inlet of which can be connected to an oil tank, and the outlet of which can be connected to an oil extraction container. The valve core is located inside the oil extraction pipe and is movable relative to the oil extraction pipe to connect or disconnect the flow channel. A control component, comprising a detection element and a regulator, wherein the detection element is connected to the regulator and the detection element can detect the oil intake of the oil intake pipe, and the regulator can control the valve core to move according to the detection information of the detection element so as to disconnect the flow channel after the oil intake reaches the target. The oil extraction pipe includes a first pipe body and a second pipe body. The first pipe body is connected to the oil extraction container. The outer circumferential surface of the second pipe body is sealed to the inner circumferential surface of the first pipe body. The second pipe body has a communication port connected to the first pipe body at one end near the first pipe body. The valve core is disposed in the second pipe body and can move along the length direction of the second pipe body to open or close the communication port. The second tube includes a tapered section fitted inside the first tube, and the cross-sectional area of ​​the tapered section gradually increases in the direction away from the communication opening; The valve core includes a conical valve head, which can open and close the communication port, and the cross-sectional area of ​​the conical valve head gradually increases in the direction away from the communication port; The second pipe body further includes a cylindrical section, which is connected to the end of the tapered section away from the communication port. The outer circumferential surface of the cylindrical section is provided with threads, and the cylindrical section is threadedly connected to the inner circumferential surface of the first pipe body. The oil extraction pipe also includes a cover plate, which is connected to the end of the second pipe body away from the communication port and has an oil passage hole. The end of the valve core away from the communication port is connected to the cover plate through an elastic element, which has a force to drive the valve core toward the communication port.

2. The oil sampling device according to claim 1, characterized in that, The regulator includes a drive member and a pusher member. The drive member is connected to the detection member. The pusher member is movably installed in the first tube body, and the drive member can drive the pusher member to extend into or retract from the communication port.

3. The oil sampling device according to claim 2, characterized in that, The driving component is an electromagnet, and the pushing component includes a magnetic fixing block and a push rod disposed on the magnetic fixing block. The push rod can extend into or retract from the communication port.

4. The oil sampling device according to claim 3, characterized in that, The detection device includes a float baffle connected to the inner wall of the oil sampling container, a float suspended below the float baffle, and a contact sensor. The contact sensor is located on the float baffle, and when the float touches the float baffle and triggers the contact sensor, the contact sensor can transmit a power-off signal to the electromagnet.

5. An oil sampling assembly, characterized in that, include: A first pipe and a second pipe. One end of the first pipe is connected to an oil sampling container. The second pipe includes a tapered section and a cylindrical section. The tapered section fits into the first pipe. The cylindrical section is screwed onto the opening at the other end of the first pipe and has an external thread on its outer circumferential surface. The inner circumferential surface of the first pipe has an internal thread that mates with the external thread. The cross-sectional area of ​​the tapered section gradually increases in the direction close to the cylindrical section, and the top of the tapered section has a communication port that communicates with the first pipe. The cover plate is located at the end of the cylindrical section away from the conical section and has an oil passage hole. The valve core is movably located in the second tube along the length direction of the second tube. The end of the valve core away from the communication port is connected to the cover plate through an elastic element. The elastic element has a force that drives the valve core to move toward the communication port. A push rod is disposed inside the first tube and opposite to the communication port, and the cross-sectional area of ​​the push rod is smaller than the cross-sectional area of ​​the communication port.

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