Bearing oil collecting device and oil stain cleaning device

Abstract

The invention relates to the field of bearing oil collection, in particular to a bearing oil collection device and an oil stain cleaning device.The bearing oil collection device comprises a bottle body, the bottle body communicates with a disassembly and connection pipe, and the disassembly and connection pipe is detachably connected with an oil outlet of a bearing; the bottle body is provided with an air outlet nozzle, the air outlet nozzle is communicated with the bottle body, a rotating shaft is arranged in the air outlet nozzle, a plurality of blades are fixedly connected to the rotating shaft, the rotating shaft extends out of the side, away from the air outlet nozzle, of the bottle body, and a driving piece used for driving the rotating shaft to rotate is arranged on the side, away from the air outlet nozzle, of the bottle body; a plurality of transmission teeth are fixedly connected to the rotating shaft in the circumferential direction. A driver is arranged on the inner side of the hollow lead screw. A screw rod nut is slidably connected outside the hollow screw rod, an oil scraping plate is slidably connected in the bottle body, and the oil scraping plate is fixedly connected with the screw rod nut; the rotating shaft is used for driving the blades to rotate to extract gas in the bottle body during forward rotation; the rotating shaft is used for driving the hollow lead screw to rotate and driving the oil scraping plate to move towards the discharging opening during reverse rotation.

Description

Technical Field

[0001] This invention relates to the field of bearing oil collection technology, and more specifically, to a bearing oil collection device and an oil stain cleaning device. Background Technology

[0002] Currently, wind turbine bearing oil collection bottles are generally made of transparent engineering plastics such as polycarbonate, and are installed directly below the oil drain ports of the main bearing, pitch bearing, or yaw bearing. Maintenance personnel secure them to the end of the drain line using quick-release pipes or threaded connections, forming a closed-loop waste oil collection system. When new grease is injected for lubrication, the waste grease mixed with worn metal particles and contaminants is squeezed out and precisely flows into the collection bottle for storage. The transparent bottle design allows inspection personnel to visually monitor the waste oil level, color, and impurity status, enabling them to determine the replacement cycle without disassembly. When the collected oil level approaches the safe capacity, maintenance personnel board the turbine, unscrew the bottle, and centrally seal the hazardous waste grease for disposal, preventing grease leakage that could contaminate the nacelle or cause a fire.

[0003] In existing technologies, for example, patent publication number CN221724052U discloses a horizontal waste oil collection bottle for wind turbine bearings. This design enhances load-bearing strength by placing a detachable interface on one side of the bottle body, avoiding the side with the detachment pipe. It also includes a scraper plate and a push rod fixedly connected to the scraper plate. After opening the bottle body, pulling the push rod drives the scraper plate to remove oil stains from the inner wall of the bottle. Existing technologies often include an air outlet on the bottle body to prevent excessive internal pressure from hindering the entry of waste oil. However, waste oil is viscous and rich in particulate impurities, resulting in poor flowability. Passive airflow from the air outlet alone is insufficient to provide a sufficient pressure difference to drive the waste oil to flow. Furthermore, the air outlet easily traps dust and impurities from the outside air, leading to reduced airflow efficiency. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a bearing oil collection device and an oil stain cleaning device, which are used to extract gas from the bottle by driving the rotating shaft to rotate forward, and to scrape off oil stains from the bottle by driving the rotating shaft to rotate in reverse.

[0005] The present invention is achieved through the following technical solution: a bearing oil collection device, comprising a bottle body, the bottle body being connected to a disassembly pipe, the disassembly pipe being detachably connected to the oil outlet of the bearing;

[0006] The bottle body is equipped with an air outlet, which is connected to the bottle body. A rotating shaft is installed inside the air outlet, and several blades are fixedly connected to the rotating shaft. The rotating shaft extends to the side of the bottle body away from the air outlet. A driving component for driving the rotating shaft to rotate is provided on the side of the bottle body away from the air outlet.

[0007] Furthermore, the bottle body is equipped with a discharge port, which is detachably connected to a cap.

[0008] Furthermore, the disassembly pipe is located on the top wall of the bottle, and the air outlet is located on the side wall of the bottle.

[0009] Furthermore, an observation window is provided on the side wall of the bottle, and the observation window has scale lines.

[0010] Furthermore, a liquid level sensor is installed inside the bottle.

[0011] The technical solution of the present invention has at least the following beneficial effects:

[0012] When in use, connect the disconnect pipe to the oil outlet of the bearing, so that the waste oil generated by the bearing flows from the disconnect pipe into the bottle. The bottle can store the waste oil, so that the waste oil does not need to be treated for a long period of time.

[0013] As waste oil flows into the bottle, it compresses the air inside, causing it to flow out from the vent. The shaft rotates under the drive of the drive unit, which in turn rotates the blades, creating an airflow from inside the bottle to outside. This generates a negative pressure inside the bottle, which attracts the waste oil, making it easier for it to flow into the bottle and reducing the probability of newly added lubricating oil being squeezed out from the edge of the bearing seal due to poor drainage.

[0014] In addition, the rotation of the blades increases the airflow from inside the bottle to outside, resulting in a higher air pressure value, which can blow out the dust in the nozzle and make the nozzle more unobstructed.

[0015] A bearing oil collection and cleaning device, based on the above-mentioned bearing oil collection device, wherein a hollow screw is sleeved on the rotating shaft, and a plurality of transmission teeth are fixedly connected to the rotating shaft in the circumferential direction, and a transmission device is provided on the inner side of the hollow screw.

[0016] The transmission device includes a ring body, which is sleeved on the outside of the transmission teeth. A first locking tooth is unidirectionally hinged on the inner side of the ring body, and a first elastic element is provided on the inner side of the ring body to provide hinge rotation damping.

[0017] The hollow screw is externally slidably connected to a screw nut, and an oil scraper is slidably connected inside the bottle. The oil scraper is fixedly connected to the screw nut.

[0018] The rotating shaft is used to drive the blades to rotate and extract gas from the bottle when rotating in the forward direction; the rotating shaft is also used to drive the hollow screw to rotate when rotating in the reverse direction, driving the scraper to move towards the discharge port.

[0019] Furthermore, the air outlet includes a housing, inside which is provided a first transverse air passage, which is connected to an L-shaped second air passage, which is connected to the bottle body, and the rotating shaft is located inside the first air passage.

[0020] Furthermore, a dust collection trough is provided at the corner of the second air passage.

[0021] Further, a first through hole and a second through hole are provided on the bottle body. The first through hole is located on one side of the hollow screw rod, and the second through hole is located on one side of the oil scraping plate;

[0022] It further includes a "C"-shaped rod. The two ends of the "C"-shaped rod are respectively slidably connected to the first through hole and the second through hole, and the two ends of the "C"-shaped rod are respectively abutted against the ring body and the oil scraping plate;

[0023] The ring body is slidably connected to the hollow screw rod. A second tooth is fixedly connected to the ring body. The second tooth is located on the side of the first tooth close to the discharge port. The bottle body is provided with a second elastic member for driving the "C"-shaped rod to reset, and the hollow screw rod is provided with a third elastic member for driving the ring body to reset.

[0024] The technical solution of the present invention has at least the following beneficial effects:

[0025] The bottle body can be removed to pour out the waste oil stored in it. However, the waste oil has a high grease viscosity and is very likely to adhere to the inner wall of the bottle body. In addition to driving the blades to rotate, the rotating shaft can also act as the drive of the oil scraping plate. When the user reverses the rotating shaft, the transmission teeth on the rotating shaft will contact the first tooth and then drive the hollow screw rod to rotate. The rotation of the hollow screw rod will drive the screw nut to slide along the hollow screw rod, and then drive the oil scraping plate to move towards the discharge port to scrape the oil stain on the side wall of the bottle body.

[0026] However, when the bottle body is normally receiving waste oil, the position of the oil scraping plate is far from the discharge port. If the hollow screw rod rotates forward, it will drive the oil scraping plate to move away from the discharge port, which will cause jamming and inability to drive. Therefore, the first tooth is connected to the ring body by a damping one-way hinge connection.

[0027] When the oil scraping plate has completed scraping the oil stain, the oil scraping plate is located on the side close to the discharge port. Rotate the rotating shaft forward. At this time, the oil scraping plate is not abutted against the inner wall of the bottle body, and the moving resistance of the oil scraping plate is less than the rotating damping of the first tooth, which will not cause the first tooth to rotate. The transmission teeth can drive the hollow screw rod to rotate through the transmission of the first tooth, so that the oil scraping plate is reset.

[0028] When the bottle body is normally receiving waste oil, at this time, the position of the oil scraping plate is far from the discharge port. Rotate the rotating shaft forward to drive the blades. At this time, because the oil scraping plate is abutted against the inner wall of the bottle body, the moving resistance is much greater than the rotating damping of the first tooth. Therefore, the first tooth will overcome the damping and rotate, which causes the transmission between the transmission teeth and the first tooth to fail, and the hollow screw rod remains stationary, while the rotating shaft can maintain forward rotation to drive the blades. Description of the Drawings

[0029] Figure 1 It is an isometric schematic diagram of an embodiment of the bearing oil collecting device and oil stain cleaning device of the present invention;

[0030] Figure 2 It is a front view schematic diagram of an embodiment of the bearing oil collecting device and oil stain cleaning device of the present invention;

[0031] Figure 3 This is a schematic structural diagram of an embodiment of the oil cleaning device for the bearing oil collecting of the present invention;

[0032] Figure 4 This is a front view structural diagram of an embodiment of the oil cleaning device for the bearing oil collecting of the present invention;

[0033] Figure 5 This is a schematic cross-sectional view of the hollow screw rod of an embodiment of the oil cleaning device for the bearing oil collecting of the present invention;

[0034] Figure 6 is Figure 5 an enlarged schematic view of part A in

[0035] Figure 7 This is a schematic diagram of the transmission of an embodiment of the oil cleaning device for the bearing oil collecting of the present invention;

[0036] Figure 8 is Figure 5 an enlarged schematic view of part B in

[0037] Reference numerals: 1, bottle body; 2, disassembly pipe; 3, air outlet nozzle; 4, rotating shaft; 5, blade; 6, driving member; 7, discharge port; 8, cover; 9, observation window; 10, scale line; 11, liquid level sensor; 12, hollow screw rod; 13, transmission gear; 14, transmission; 15, screw nut; 16, oil scraping plate; 17, first through hole; 18, second through hole; 19, "C"-shaped rod; 20, second elastic member; 21, third elastic member; 301, housing; 302, first air duct; 303, second air duct; 304, dust accumulation groove; 1401, ring body; 1402, first engaging tooth; 1403, first elastic member; 1404, second engaging tooth. Detailed implementation manners

[0038] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 the invention and for simplifying the description, and do not 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The following detailed description illustrates the specific implementation method:

[0042] Example 1:

[0043] As attached Figures 1-8 As shown: A bearing oil collection device includes a bottle body 1, which is connected to a disconnect pipe 2, and the disconnect pipe 2 is detachably connected to the oil outlet of the bearing.

[0044] The bottle body 1 is provided with an air outlet 3, which is connected to the bottle body 1. The air outlet 3 is provided with a rotating shaft 4, and several blades 5 are welded and fixed on the rotating shaft 4. The rotating shaft 4 extends to the side of the bottle body 1 away from the air outlet 3. The side of the bottle body 1 away from the air outlet 3 is provided with a driving component 6 for driving the rotating shaft 4 to rotate. The driving component 6 can be a motor or a crank, etc.

[0045] The connecting pipe 2 is located on the top wall of the bottle body 1, and the vent 3 is located on the side wall of the bottle body 1. The side wall of the bottle body 1 has a discharge port 7, which is threadedly connected to a cap 8. The side wall of the bottle body 1 has an observation window 9 made of transparent material, with graduation lines 10 on it. A liquid level sensor 11 is installed inside the bottle body 1, and the liquid level sensor 11 is connected to a wireless module for remotely transmitting liquid level data.

[0046] In use, the disconnect pipe 2 is connected to the oil outlet of the bearing, allowing the waste oil generated by the bearing to flow from the disconnect pipe 2 into the bottle body 1. The bottle body 1 can store the waste oil, eliminating the need for waste oil treatment for a considerable period of time. Because the cap 8 is located on the side wall, compared to when the cap 8 is located on the top wall, the threads no longer bear the weight of the vertical bottle body 1, resulting in lower material strength requirements and allowing the bottle body 1 to be designed to be larger.

[0047] When new lubricating oil is injected, positive pressure is generated, which squeezes out the waste oil at the bottom and forces it out under pressure. If the discharge is obstructed, positive pressure will accumulate inside the bearing, eventually being squeezed out at the edge of the bearing seal and damaging the sealing structure.

[0048] When waste oil flows into bottle 1, it compresses the air in bottle 1, causing the air to flow out from the air outlet 3. The rotating shaft 4 can rotate under the drive of the drive component 6, which in turn causes the blades 5 to rotate, generating an airflow from inside bottle 1 to outside of bottle 1 in the air outlet 3. This creates a certain negative pressure inside bottle 1, which can attract waste oil. Under the combined effect of positive and negative pressure, the waste oil can flow more easily into bottle 1, reducing the probability that newly added lubricating oil will be squeezed out from the edge of the bearing seal due to poor oil drainage.

[0049] In addition, the rotation of blade 5 can increase the airflow from inside the bottle 1 to outside the bottle 1, resulting in a higher air pressure value, which can blow out the dust in the air outlet 3 and make the air outlet 3 more unobstructed.

[0050] The observation window 9 allows users to easily observe the level and color of waste oil in the bottle 1, which helps users determine whether waste oil needs to be discharged and the condition of the lubricating oil.

[0051] When the lubricating oil level in bottle 1 exceeds the preset value, the user can remove bottle 1 from the oil outlet of the bearing, take it to the relevant processing site, open the cap 8, pour out the waste oil in bottle 1 and dispose of it.

[0052] Example 2:

[0053] A bearing oil collection and cleaning device based on the above-mentioned bearing oil collection device, wherein a hollow screw 12 is sleeved on the rotating shaft 4, and a plurality of transmission teeth 13 are integrally formed in the circumferential direction on the rotating shaft 4, and a transmission device 14 is provided on the inner side of the hollow screw 12.

[0054] The transmission device 14 includes a ring body 1401, which is sleeved on the outside of the transmission gear 13. A first locking tooth 1402 is unidirectionally hinged on the inner side of the ring body 1401, and a first elastic element 1403 is provided on the inner side of the ring body 1401 to provide hinge rotation damping.

[0055] The hollow screw 12 is slidably connected to the screw nut 15, and the bottle body 1 is slidably connected to the oil scraper 16. The oil scraper 16 is bolted to the screw nut 15, and the liquid level sensor 11 is set on the oil scraper 16.

[0056] The rotating shaft 4 is used to drive the blade 5 to rotate and extract the gas from the bottle 1 when rotating in the forward direction; the rotating shaft 4 is used to drive the hollow screw 12 to rotate when rotating in the reverse direction and drive the oil scraper 16 to move towards the outlet 7.

[0057] The air outlet 3 includes a housing 301, within which a horizontal first air passage 302 is provided. The first air passage 302 connects to an L-shaped second air passage 303, which is connected to the bottle body 1. A rotating shaft 4 is located within the first air passage 302. A dust collection groove 304 is provided at the corner of the second air passage 303. Although the bottle body 1 stores waste oil, the waste oil can be recycled after later treatment. However, the increased particulate matter in the waste oil undoubtedly increases the difficulty of recycling. The design of the first air passage 302 and the second air passage 303 increases the turning point of the air passage, causing most of the dust particles to remain at the turning point, reducing the amount of dust entering the bottle body 1. The dust collection groove 304 at the corner increases the dust storage capacity at the corner.

[0058] Bottle 1 can be removed to pour out the stored waste oil, but the waste oil has a high viscosity and easily adheres to the inside of bottle 1. The rotating shaft 4, in addition to driving the blade 5 to rotate, also drives the scraper 16. When the user reverses the rotating shaft 4, the transmission gear 13 on the shaft 4 contacts the first retaining tooth 1402, thereby driving the hollow lead screw 12 to rotate. The rotation of the hollow lead screw 12 drives the lead screw nut 15 to slide along the hollow lead screw 12, thereby driving the scraper 16 to move towards the discharge port 7, scraping away the oil stains on the side wall of bottle 1.

[0059] However, when the bottle body 1 is normally receiving waste oil, the position of the scraper 16 is far away from the outlet 7. If the hollow screw 12 rotates in the forward direction, it will drive the scraper 16 to move away from the outlet 7, which will cause it to jam and become unable to drive. Therefore, the first locking tooth 1402 is connected to the ring body 1401 in a damped one-way hinged manner.

[0060] After the scraper blade 16 has finished scraping off the oil, the scraper blade 16 is located on the side close to the outlet 7. The rotating shaft 4 rotates clockwise. At this time, the scraper blade 16 does not abut against the inner wall of the bottle body 1. The moving resistance of the scraper blade 16 is less than the rotational damping of the first locking tooth 1402, so the first locking tooth 1402 will not rotate. The transmission tooth 13 can drive the hollow screw 12 to rotate through the first locking tooth 1402, so that the scraper blade 16 is reset.

[0061] When the bottle body 1 is normally receiving waste oil, at this time the position of the oil scraping plate 16 is far from the discharge port 7. The forward rotation of the rotating shaft 4 drives the blade 5. At this time, since the oil scraping plate 16 abuts against the inner wall of the bottle body 1, the moving resistance is far greater than the rotational damping of the first tooth 1402. Therefore, the first tooth 1402 will overcome the damping and rotate, which causes the transmission between the transmission gear 13 and the first tooth 1402 to fail. The hollow screw rod 12 remains stationary, while the rotating shaft 4 can maintain forward rotation to drive the blade 5.

[0062] Embodiment 3:

[0063] The difference from the above embodiment is that the bottle body 1 is provided with a first through hole 17 and a second through hole 18. The first through hole 17 is located on one side of the hollow screw rod 12, and the second through hole 18 is located on one side of the oil scraping plate 16.

[0064] It further includes a "C"-shaped rod 19. The two ends of the "C"-shaped rod 19 are respectively slidably connected to the first through hole 17 and the second through hole 18, and the two ends of the "C"-shaped rod 19 respectively abut against the ring body 1401 and the oil scraping plate 16.

[0065] The ring body 1401 is slidably connected to the hollow screw rod 12. A second tooth 1404 is welded and fixed on the ring body 1401. The second tooth 1404 is located on the side of the first tooth 1402 close to the discharge port 7. The bottle body 1 is provided with a second elastic member 20 for driving the "C"-shaped rod 19 to reset, and the hollow screw rod 12 is provided with a third elastic member 21 for driving the ring body 1401 to reset.

[0066] Although the one-way hinged manner with damping solves the jamming problem, it also causes the need to overcome the damping during forward rotation, which increases the power consumption for driving the blade 5 to rotate.

[0067] In this embodiment, when the oil scraping plate 16 does not abut against the inner wall of the bottle body 1, the rotation of the transmission gear 13 will contact the second tooth 1404. The second tooth 1404 is fixedly connected to the ring body 1401. Therefore, regardless of forward or reverse rotation, the rotating shaft 4 performs rigid transmission to the hollow screw rod 12.

[0068] When the oil scraping plate 16 abuts against the inner wall of the bottle body 1, it will cause the bottom of the "C"-shaped rod 19 to be pushed into the second through hole 18, and the "C"-shaped rod 19 will also cause its top to move away from the ring body 1401. After the top of the "C"-shaped rod 19 moves away from the ring body 1401, the ring body 1401 will move towards the "C"-shaped rod 19 under the action of the third elastic member 21, thereby changing the contact of the transmission gear 13 from the second tooth 1404 to the first tooth 1402. The rotational damping of the first tooth 1402 in this embodiment is set to be extremely small. When rotating in reverse, due to the reason that the one-way hinge cannot rotate in the reverse direction, rigid transmission is performed. When rotating forward, it directly overcomes the extremely small damping to make the first tooth 1402 rotate, and the transmission between the rotating shaft 4 and the hollow screw rod 12 fails.

[0069] In this embodiment, when the scraper 16 comes into contact with the inner wall of the bottle body 1, the locking tooth that contacts the transmission tooth 13 is replaced, thereby reducing the subsequent rotational damping.

[0070] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A bearing oil collecting device, characterized in that, It includes a bottle body (1), and a detachable pipe (2) is connected to the bottle body (1). The detachable pipe (2) is detachably connected to the oil outlet of the bearing. The bottle body (1) is provided with an air outlet nozzle (3). The air outlet nozzle (3) is connected to the bottle body (1). A rotating shaft (4) is arranged in the air outlet nozzle (3). A plurality of blades (5) are fixedly connected to the rotating shaft (4). The rotating shaft (4) extends outside the bottle body (1) on the side away from the air outlet nozzle (3). A driving member (6) for driving the rotating shaft (4) to rotate is arranged on the side of the bottle body (1) away from the air outlet nozzle (3).

2. The bearing oil collecting device according to claim 1, characterized in that, The bottle body (1) is provided with a discharge port (7), and a cover (8) is detachably connected to the discharge port (7).

3. The bearing oil collecting device according to claim 2, characterized in that, The detachable pipe (2) is located on the top wall of the bottle body (1), and the air outlet nozzle (3) is located on the side wall of the bottle body (1).

4. The bearing oil collecting device according to claim 3, characterized in that, An observation window (9) is arranged on the side wall of the bottle body (1), and a scale line (10) is arranged on the observation window (9).

5. The bearing oil collecting device according to claim 4, characterized in that, A liquid level sensor (11) is arranged inside the bottle body (1).

6. A bearing oil collection and cleaning device, based on the bearing oil collection device of claim 2, characterized in that, A hollow screw rod (12) is sleeved on the rotating shaft (4). A plurality of transmission teeth (13) are fixedly connected to the rotating shaft (4) in the circumferential direction. A transmission device (14) is arranged inside the hollow screw rod (12). The transmission device (14) includes an annular body (1401). The annular body (1401) is sleeved outside the transmission teeth (13). A first locking tooth (1402) is hinged to the inside of the annular body (1401) in a one-way manner. A first elastic member (1403) for providing hinge rotation damping is arranged inside the annular body (1401). A screw nut (15) is slidably connected to the outside of the hollow screw rod (12). An oil scraping plate (16) is slidably connected inside the bottle body (1). The oil scraping plate (16) is fixedly connected to the screw nut (15). The rotating shaft (4) is used for driving the blades (5) to rotate to extract the gas inside the bottle body (1) when rotating forward. The rotating shaft (4) is used for driving the hollow screw rod (12) to rotate and driving the oil scraping plate (16) to move towards the discharge port (7) when rotating backward.

7. The bearing oil collection and cleaning device according to claim 6, characterized in that, The air outlet nozzle (3) includes a housing (301). A horizontal first air passage (302) is arranged inside the housing (301). The first air passage (302) is connected to an L-shaped second air passage (303). The second air passage (303) is connected to the bottle body (1). The rotating shaft (4) is located inside the first air passage (302).

8. The bearing oil collection and cleaning device according to claim 7, characterized in that, An ash accumulation groove (304) is arranged at the corner of the second air passage (303).

9. The bearing oil collection and cleaning device according to claim 8, characterized in that, A first through hole (17) and a second through hole (18) are formed in the bottle body (1). The first through hole (17) is located on one side of the hollow screw rod (12), and the second through hole (18) is located on one side of the oil scraping plate (16). It further includes a "C"-shaped rod (19). The two ends of the "C"-shaped rod (19) are respectively slidably connected to the first through hole (17) and the second through hole (18). The two ends of the "C"-shaped rod (19) are respectively abutted against the annular body (1401) and the oil scraping plate (16). The ring body (1401) is slidably connected to the hollow screw rod (12). A second locking tooth (1404) is fixedly connected to the ring body (1401). The second locking tooth (1404) is located on the side of the first locking tooth (1402) close to the discharge port (7). The bottle body (1) is provided with a second elastic member (20) for driving the "C"-shaped rod (19) to reset. A third elastic member (21) for driving the ring body (1401) to reset is provided inside the hollow screw rod (12).

Images