Thin oil lubricating and filtering device

Abstract

The invention relates to the technical field of lubricating oil, in particular to a thin oil lubricating and filtering device which comprises a storage assembly, an oil tank and an oil return pipe arranged on the surface of the oil tank. The filtering assembly comprises an extraction pipe, a filtering pump connected with the extraction pipe, a filtering box connected with the filtering pump and a circulating pipe connected with the filtering box; the oil supply assembly comprises a communicating pipe, an oil supply pump connected with the communicating pipe, an oil product monitor connected with the oil supply pump and a connecting pipe arranged on the surface of the oil product monitor; the pumped thin oil is detected in real time through the oil product monitor, when impurities in the thin oil are excessive, the filter pump is started in time to filter the thin oil, so that the impurity amount in the thin oil is reduced, the lubricating effect of the thin oil on a component needing to be lubricated is guaranteed, meanwhile, the thin oil forms a vortex through the spiral pipe when being pumped out, the impurities at the bottom of the thin oil are stirred up, and the lubricating effect is improved. Therefore, all impurities in the thin oil can be filtered.

Description

Technical Field

[0001] This invention relates to the field of lubricating oil technology, and in particular to a thin oil lubrication filtration device. Background Technology

[0002] Centralized lubrication systems using thin oil are widely used in various industrial production equipment, primarily for large, high-speed rotating machinery. Due to the complex and variable operating conditions of industrial equipment, lubrication systems are significantly affected by external factors, such as water emulsification, dust ingress, and poor cooling. These issues can lead to substandard oil quality, causing irreversible damage to rotating components, and even resulting in significant property losses and safety accidents. Therefore, the lubrication system directly impacts the safety, reliability, and stability of equipment operation.

[0003] Currently, existing methods for online monitoring, early warning, fault diagnosis, and automatic oil filtration in lubrication systems have certain limitations. They rely on manual inspections and sampling tests, resulting in low work efficiency and safety hazards due to insufficient lubrication of equipment. At the same time, lubrication systems cannot perform real-time monitoring, early warning, and diagnosis; and oil filtration devices cannot automatically filter oil according to its quality in real time, leading to excessive impurities in the lubricating oil and insufficient lubrication effect. Therefore, a thin oil lubrication filtration device is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a thin oil lubrication and filtration device, which aims to solve the problem that existing lubricating oil cannot be monitored in real time to promptly treat lubricating oil containing too many impurities, resulting in insufficient lubrication effect on the lubricated components.

[0005] This invention proposes the following technical solution: a thin oil lubrication and filtration device, comprising...

[0006] Storage components include an oil tank, an oil return pipe disposed on the surface of the oil tank; and,

[0007] The filtration assembly includes an extraction tube, a filtration pump connected to the extraction tube, a filter box connected to the filtration pump, and a circulation tube connected to the filter box; and,

[0008] The fuel supply assembly includes a connecting pipe, a fuel pump connected to the connecting pipe, a fuel quality monitor connected to the fuel pump, and a connecting pipe disposed on the surface of the fuel quality monitor; wherein...

[0009] When the oil quality monitor detects that there are too many impurities in the thin oil inside the oil tank, the filter pump draws out the thin oil from the oil tank and introduces it into the filter box for filtration. The filtered thin oil then returns to the oil tank through the circulation pipe.

[0010] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: the oil outlet of the filter pump is connected to a connecting pipe, one end of the connecting pipe is connected to a right solenoid valve, one end of the right solenoid valve is connected to the filter box, and a left solenoid valve is connected between the filter box and the circulation pipe.

[0011] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: the oil outlet of the oil supply pump is connected to a detection tube, and one end of the detection tube is connected to an oil quality monitor.

[0012] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: one end of the connecting pipe is connected to a folded pipe, and one end of the folded pipe is connected to an oil supply pipe.

[0013] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: a cooling box is provided on the outside of the folded tube, and an inlet valve and an outlet valve are respectively provided on both sides of the cooling box, with an inlet pipe and an outlet pipe respectively connected to one end of the inlet valve and the outlet valve.

[0014] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: a spiral tube is fixed inside the oil tank, and one end of the spiral tube is connected to the extraction tube.

[0015] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: the spiral tube is provided with a spiral groove inside;

[0016] When oil enters from the spiral tube, it rotates along the spiral groove, forming a vortex that enters the extraction tube.

[0017] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: a horizontal plate is fixed inside the oil tank, and a partition is fixed at one end of the horizontal plate.

[0018] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: the circulation pipe and the connecting pipe are arranged on both sides of the partition, and the length of the connecting pipe extending into the oil tank is greater than the length of the circulation pipe extending into the oil tank.

[0019] In a preferred embodiment of the thin oil lubrication and filtration device of the present invention: the horizontal plate is disposed above the spiral tube, and one end of the spiral tube is sleeved with the partition plate.

[0020] The beneficial effects of this invention are as follows: the extracted thin oil is detected in real time by an oil quality monitor. When there are too many impurities in the thin oil, the filter pump is started in time to filter the thin oil, thereby reducing the amount of impurities inside the thin oil and ensuring the lubrication effect of the thin oil on the components that need lubrication. At the same time, the spiral tube makes the thin oil form a vortex when it is extracted, stirring up the impurities at the bottom of the thin oil, so that all the impurities inside the thin oil can be filtered. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein:

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0023] Figure 2 This is a side view of the present invention.

[0024] Figure 3 This is a schematic diagram of the cooling component in this invention.

[0025] Figure 4 This is a schematic diagram of the internal structure of the oil tank in this invention.

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the spiral tube in this invention.

[0027] Figure 6 This is a cross-sectional view of the cooling box in this invention.

[0028] Reference numerals: 1. Storage assembly; 11. Oil tank; 12. Return oil pipe; 13. Horizontal plate; 14. Spiral pipe; 15. Baffle plate; 16. Cleaning chamber; 17. Filter chamber; 2. Filter assembly; 21. Extraction pipe; 22. Filter pump; 23. Connecting pipe; 24. Right solenoid valve; 25. Filter box; 26. Left solenoid valve; 27. Circulation pipe; 3. Oil supply assembly; 31. Connecting pipe; 32. Oil supply pump; 33. Detection pipe; 34. Oil quality monitor; 35. Connecting pipe; 36. Oil supply pipe; 37. Folded pipe; 4. Cooling assembly; 41. Cooling tank; 42. Inlet valve; 43. Inlet pipe; 44. Outlet valve; 45. Outlet pipe. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0030] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0031] Example 1, referring to Figures 1-6This embodiment provides a thin oil lubrication and filtration device, including,

[0032] Storage component 1 includes an oil tank 11, an oil return pipe 12 disposed on the surface of the oil tank 11; and,

[0033] Filter assembly 2 includes an extraction pipe 21, a filter pump 22 connected to the extraction pipe 21, a filter box 25 connected to the filter pump 22, and a circulation pipe 27 connected to the filter box 25; and,

[0034] The oil supply assembly 3 includes a connecting pipe 31, an oil supply pump 32 connected to the connecting pipe 31, an oil quality monitor 34 connected to the oil supply pump 32, and a connecting pipe 35 disposed on the surface of the oil quality monitor 34; wherein...

[0035] When the oil quality monitor 34 detects excessive impurities in the thin oil inside the oil tank 11, the filter pump 22 draws out the thin oil from the oil tank 11 and introduces it into the filter box 25 for filtration. The filtered thin oil then returns to the oil tank 11 through the circulation pipe 27. The oil quality monitor 34 continuously monitors the thin oil and can immediately start the filter pump 22 to filter the thin oil when there are too many impurities inside, thereby ensuring the cleanliness of the thin oil and enabling the lubrication components to receive sufficient lubrication.

[0036] Operating Procedure: The oil supply pump 32 starts and draws thin oil from the oil tank 11 through the connecting pipe 31. The thin oil passes through the oil supply pump 32 and is detected by the oil quality monitor 34. The detected thin oil enters the connecting pipe 35 to supply oil to the components that need lubrication. The thin oil flowing out of the lubrication components returns to the oil tank 11 through the return pipe 12. When the oil quality monitor 34 detects too many impurities in the thin oil, the filter pump 22 starts and draws the thin oil out of the oil tank 11 through the extraction pipe 21. The thin oil is filtered by the filter box 25 and guided back to the oil tank 11 through the circulation pipe 27. The oil quality monitor 34 continuously detects the thin oil and can start the filter pump 22 immediately when there are too many impurities in the thin oil to filter the thin oil, thereby ensuring the cleanliness of the thin oil and enabling the lubrication components to receive sufficient lubrication.

[0037] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention, which differs from the previous embodiment in that it further includes,

[0038] The oil outlet of the filter pump 22 is connected to a connecting pipe 23. One end of the connecting pipe 23 is connected to a right solenoid valve 24. One end of the right solenoid valve 24 is connected to the filter box 25. A left solenoid valve 26 is connected between the filter box 25 and the circulation pipe 27. The filter box 25 filters the thin oil through a lubricating oil filter element, which can effectively filter out impurities inside the thin oil and ensure the cleanliness of the thin oil.

[0039] The oil outlet of the oil supply pump 32 is connected to a detection tube 33. One end of the detection tube 33 is connected to an oil quality monitor 34. Since the detection tube 33 is connected to the oil outlet of the oil supply pump 32, the thin oil entering from the connecting pipe 31 will enter the detection tube 33. The extracted thin oil will be detected by the oil quality monitor 34. The detected thin oil will enter the connecting pipe 35, thereby filtering the thin oil when there are too many impurities inside.

[0040] A spiral tube 14 is fixed inside the oil tank 11. One end of the spiral tube 14 is connected to the extraction tube 21. When the filter pump 22 is started, the thin oil enters the extraction tube 21 from the spiral tube 14. Since the end of the spiral tube 14 connected to the extraction tube 21 is narrow and the other end of the spiral tube 14 is wide, the thin oil entering the spiral tube 14 will form a vortex, thereby entraining impurities in the thin oil and allowing the impurities in the thin oil to enter the extraction tube 21 along the spiral tube 14.

[0041] The spiral tube 14 has spiral grooves inside. When thin oil enters from the spiral tube 14, it will rotate along the spiral grooves, forming a vortex that enters the extraction tube 21. The thin oil enters the spiral grooves and moves along them, thereby causing the thin oil in the middle of the spiral tube 14 to rotate, accelerating the formation of the vortex. The vortex affects the thin oil inside the filter chamber 17, thus stirring the thin oil inside the filter chamber 17. Impurities at the bottom of the filter chamber 17 are stirred up and floated up, and then sucked into the spiral tube 14.

[0042] A horizontal plate 13 is fixed inside the oil tank 11, and a partition 15 is fixed to one end of the horizontal plate 13. The horizontal plate 13 and the partition 15 divide the inside of the oil tank 11 into three areas: the spiral tube 14 area, the oil cleaning chamber 16, and the filter chamber 17. The filtered thin oil remains in the oil cleaning chamber 16, and the thin oil containing impurities in the filter chamber 17 is extracted. This prevents the filtered thin oil from entering the filter chamber 17 immediately and mixing with the thin oil containing impurities. This ensures that the spiral tube 14 can suck up as much thin oil as possible from the filter chamber 17, thereby reducing the impurities in the thin oil.

[0043] The circulation pipe 27 and the connecting pipe 31 are located on both sides of the partition 15. The length of the connecting pipe 31 extending into the oil tank 11 is greater than the length of the circulation pipe 27 extending into the oil tank 11. The circulation pipe 27 and the connecting pipe 31 are connected to the filter pump 22 and the oil supply pump 32, respectively. The circulation pipe 27 supplies oil into the oil tank 11, and the connecting pipe 31 draws oil from the oil tank 11. The connecting pipe 31 needs to be longer to draw oil from the bottom of the oil tank 11. At the same time, when the connecting pipe 31 is drawing oil, because the opening of the connecting pipe 31 is lower, it can agitate the impurities at the bottom of the filter chamber 17. As a result, the oil quality monitor 34 detects the impurities inside the thin oil and starts the filter pump 22 to filter the thin oil, so as to prevent the filter box 25 from being clogged due to too many impurities inside the thin oil.

[0044] The horizontal plate 13 is positioned above the spiral tube 14, and one end of the spiral tube 14 is connected to the partition plate 15. The template 13 and the partition plate 15 form the oil cleaning chamber 16. The thin oil filtered by the filter box 25 can remain in the oil cleaning chamber 16 for a period of time and will not directly mix with the thin oil containing impurities, thereby increasing the filtration efficiency. The top of the partition plate 15 is a certain distance from the top of the oil tank 11. If too much thin oil is filtered, the thin oil will overflow from the top of the partition plate 15 and enter the filter chamber 17, thus forming a filtration cycle.

[0045] Operating Procedure: The oil supply pump 32 starts, drawing thin oil from the oil tank 11 through the connecting pipe 31. The thin oil passes through the oil supply pump 32 and the detection pipe 33, and is detected by the oil quality monitor 34. The detected thin oil enters the connecting pipe 35 to supply oil to the components requiring lubrication. The thin oil flowing out of the lubricated components returns to the oil tank 11 through the return pipe 12. When the oil quality monitor 34 detects excessive impurities in the thin oil, the filter pump 22 starts, drawing the thin oil from the oil tank 11 through the extraction pipe 21. The thin oil inside the oil tank 11 enters the spiral tube 14, rotating along the spiral groove to form a vortex that enters the extraction pipe 21. The thin oil then enters the spiral groove... In the spiral groove, the oil moves along the spiral groove, causing the thin oil in the middle of the spiral tube 14 to rotate, accelerating the formation of vortices. The vortex affects the thin oil inside the filter chamber 17, thus agitating it. Impurities at the bottom of the filter chamber 17 are stirred up and floated to the surface, and are then sucked into the spiral tube 14. At the same time, the right solenoid valve 24 and the left solenoid valve 26 open, and the thin oil is filtered by the filter box 25. Inside the filter box 25, the thin oil is filtered by a lubricating oil filter element, which can effectively filter out impurities inside the thin oil and ensure its cleanliness. The oil is then returned to the oil tank 11 through the circulation pipe 27, and the connecting pipe 31 extends deep into the oil tank 11. The depth of the circulation pipe 27 extending into the oil tank 11 is greater than the length of the circulation pipe 27. The circulation pipe 27 and the connecting pipe 31 are connected to the filter pump 22 and the oil supply pump 32, respectively. The circulation pipe 27 supplies oil into the oil tank 11, and the connecting pipe 31 draws oil from the oil tank 11. Therefore, the connecting pipe 31 needs to be relatively long to draw oil from the bottom of the oil tank 11. At the same time, when the connecting pipe 31 is drawing oil, because the opening of the connecting pipe 31 is low, it can agitate the impurities at the bottom of the filter chamber 17. These impurities are then detected by the oil quality monitor 34, which starts the filter pump 22 to filter the thin oil, preventing excessive impurities from clogging the filter box 25. The thin oil flowing out of the circulation pipe 27 enters the clear oil chamber 16. The thin oil inside the clear oil chamber 16 rises slowly. When the height of the thin oil exceeds the partition 15, the thin oil enters the filter chamber 17. The horizontal plate 13 and the partition 15 divide the inside of the oil tank 11 into three areas: the spiral pipe 14 area, the clear oil chamber 16 and the filter chamber 17. The filtered thin oil remains in the clear oil chamber 16, and the thin oil containing impurities in the filter chamber 17 is extracted. This prevents the filtered thin oil from entering the filter chamber 17 immediately and mixing with the thin oil containing impurities. This ensures that the spiral pipe 14 can suck up as much thin oil as possible from the filter chamber 17, thereby reducing the impurities in the thin oil.

[0046] Example 3, referring to Figures 1-6 This is the third embodiment of the present invention, which differs from the previous embodiment in that it also includes,

[0047] One end of the connecting pipe 35 is connected to a folded pipe 37, and the other end of the folded pipe 37 is connected to an oil supply pipe 36. The folded pipe 37 increases the contact area with the cooling water in the cooling tank 41, so that the thin oil inside the folded pipe 37 can be cooled down quickly. Since most of the components that need to be lubricated are rotating structures, and the rotating structures inevitably generate friction and dissipate heat when rotating, the lubricating oil is heated. Therefore, the temperature of the thin oil entering the oil tank 11 from the return oil pipe 12 is relatively high. Through the cooling water inside the cooling tank 41, the thin oil enters the lubricated components at a normal temperature.

[0048] A cooling box 41 is provided on the outside of the folded tube 37. A water inlet valve 42 and a water outlet valve 44 are respectively provided on both sides of the cooling box 41. One end of the water inlet valve 42 and the water outlet valve 44 are respectively connected to the water inlet pipe 43 and the water outlet pipe 45. Cooling water inside the water inlet pipe 43 enters the cooling box 41 and contacts the outer surface of the folded tube 37, reducing the temperature of the folded tube 37, thereby cooling the thin oil inside the folded tube 37. The cooled thin oil enters the component that needs to be lubricated, thereby absorbing more heat and preventing the high temperature generated when the lubricated component rotates from affecting the rotation of the lubricated component.

[0049] Operating Procedure: The oil supply pump 32 starts, drawing thin oil from the oil tank 11 through the connecting pipe 31. The thin oil passes through the oil supply pump 32 and the detection pipe 33, and is detected by the oil quality monitor 34. The detected thin oil enters the connecting pipe 35, and then flows into the folded pipe 37. The inlet valve 42 and outlet valve 44 are opened, allowing cooling water to enter from the inlet pipe 43, pass through the inlet valve 42, and enter the cooling tank 41. The cooling water then contacts the surface of the folded pipe 37, cooling the thin oil inside. The cooled thin oil enters the oil supply pipe 36 to supply oil to the components requiring lubrication. Cooling water flows out from the cooling tank 41, passes through the outlet valve 44, and enters the outlet pipe 45. The thin oil flowing out of the lubrication assembly returns to the oil tank 11 through the return pipe 12. When the oil quality monitor 34 detects excessive impurities in the thin oil, the filter pump 22 starts, drawing out the thin oil from inside the oil tank 11 through the extraction pipe 21. The thin oil inside the oil tank 11 enters the spiral tube 14, where it rotates along the spiral groove, forming a vortex that enters the extraction pipe 21. The thin oil then moves along the spiral groove, causing the thin oil in the middle of the spiral tube 14 to rotate, accelerating the formation of the vortex. The vortex affects the thin oil inside the filter chamber 17, stirring it up. Impurities at the bottom of the filter chamber 17 are stirred up and floated to the surface, thus being drawn into the spiral tube. 14. When the oil is drawn in, the right solenoid valve 24 and the left solenoid valve 26 open simultaneously. The thin oil is filtered by the filter box 25 and guided back to the oil tank 11 through the circulation pipe 27. The length of the connecting pipe 31 extending into the oil tank 11 is greater than the length of the circulation pipe 27 extending into the oil tank 11. The circulation pipe 27 and the connecting pipe 31 are connected to the filter pump 22 and the oil supply pump 32, respectively. The circulation pipe 27 delivers oil into the oil tank 11, and the connecting pipe 31 draws oil from the oil tank 11. Therefore, the connecting pipe 31 needs to be longer to draw oil from the bottom of the oil tank 11. At the same time, when the connecting pipe 31 is drawing oil, because its opening is lower, it can agitate the impurities at the bottom of the filter chamber 17, thus allowing them to be absorbed by the oil. The monitor 34 detects impurities inside the thin oil. The thin oil flowing out of the circulation pipe 27 enters the clearing chamber 16. The thin oil inside the clearing chamber 16 rises slowly. When the height of the thin oil exceeds the partition 15, the thin oil enters the filter chamber 17. The horizontal plate 13 and the partition 15 divide the inside of the oil tank 11 into three areas: the spiral tube 14 area, the clearing chamber 16, and the filter chamber 17. The filtered thin oil remains in the clearing chamber 16, and the thin oil containing impurities in the filter chamber 17 is extracted. This prevents the filtered thin oil from entering the filter chamber 17 immediately and mixing with the thin oil containing impurities. It ensures that the spiral tube 14 can suck up as much thin oil as possible from the filter chamber 17, thereby reducing the impurities in the thin oil.

[0050] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A thin oil lubrication and filtration device, characterized in that: include, Storage assembly (1) includes an oil tank (11), an oil return pipe (12) disposed on the surface of the oil tank (11); and, The filter assembly (2) includes an extraction pipe (21), a filter pump (22) connected to the extraction pipe (21), a filter box (25) connected to the filter pump (22), and a circulation pipe (27) connected to the filter box (25); and, The oil supply assembly (3) includes a connecting pipe (31), an oil supply pump (32) connected to the connecting pipe (31), an oil quality monitor (34) connected to the oil supply pump (32), and a connecting pipe (35) disposed on the surface of the oil quality monitor (34); wherein, When the oil quality monitor (34) detects that there are too many impurities in the thin oil inside the oil tank (11), the filter pump (22) draws out the thin oil inside the oil tank (11) and introduces it into the filter box (25) for filtration. The filtered thin oil returns to the oil tank (11) through the circulation pipe (27).

2. The thin oil lubrication and filtration device as described in claim 1, characterized in that: The oil outlet of the filter pump (22) is connected to a connecting pipe (23), one end of the connecting pipe (23) is connected to a right solenoid valve (24), one end of the right solenoid valve (24) is connected to the filter box (25), and a left solenoid valve (26) is connected between the filter box (25) and the circulation pipe (27).

3. The thin oil lubrication and filtration device as described in claim 2, characterized in that: The oil outlet of the oil supply pump (32) is connected to a detection tube (33), and one end of the detection tube (33) is connected to an oil quality monitor (34).

4. The thin oil lubrication and filtration device as described in claim 3, characterized in that: One end of the connecting pipe (35) is connected to a folded pipe (37), and one end of the folded pipe (37) is connected to an oil supply pipe (36).

5. The thin oil lubrication and filtration device as described in claim 4, characterized in that: A cooling box (41) is provided on the outside of the folded tube (37). A water inlet valve (42) and a water outlet valve (44) are provided on both sides of the cooling box (41). One end of the water inlet valve (42) and the water outlet valve (44) are respectively connected to a water inlet pipe (43) and a water outlet pipe (45).

6. The thin oil lubrication and filtration device as described in claim 5, characterized in that: The oil tank (11) has a spiral tube (14) fixed inside, and one end of the spiral tube (14) is connected to the extraction tube (21).

7. The thin oil lubrication and filtration device as described in claim 6, characterized in that: The spiral tube (14) has a spiral groove inside; When oil enters from the spiral tube (14), it rotates along the spiral groove, forming a vortex that enters the extraction tube (21).

8. The thin oil lubrication and filtration device as described in claim 7, characterized in that: The inside of the oil tank (11) is fixed with a horizontal plate (13), and a partition plate (15) is fixed at one end of the horizontal plate (13).

9. The thin oil lubrication and filtration device as described in claim 8, characterized in that: The circulation pipe (27) and the connecting pipe (31) are arranged on both sides of the partition (15), and the length of the connecting pipe (31) extending into the oil tank (11) is greater than the length of the circulation pipe (27) extending into the oil tank (11).

10. The thin oil lubrication and filtration device as described in claim 9, characterized in that: The horizontal plate (13) is positioned above the spiral tube (14), and one end of the spiral tube (14) is sleeved with the partition plate (15).

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