Automatic oil discharge mechanism

Abstract

The application discloses an automatic oil discharging mechanism, which comprises a workbench, a conveying device arranged on the top of the workbench and used for conveying an oil filling bottle, and a filling device arranged on the top of the workbench and used for filling oil into the oil filling bottle in conveying. The filling device comprises a supporting frame, an oil feeding pump, a storage tank, a filling seat, a conveying pipeline and an oil injection nozzle. The supporting frame is arranged on the top of the workbench, the filling seat is arranged on one side of the supporting frame, the oil injection nozzle is arranged at the bottom of the filling seat, the storage tank is arranged on the top of the workbench, the oil feeding pump is arranged on one side of the storage tank, one end of the conveying pipeline is communicated with the oil outlet end of the oil feeding pump, and the other end of the conveying pipeline is communicated with the inside of the filling seat. The automatic oil discharging mechanism can solve the problem that oil is left in the conveying pipeline when the oil feeding pump stops working.

Description

Technical Field

[0001] This application relates to the field of edible oil production equipment technology, and in particular to an automatic oil discharge mechanism. Background Technology

[0002] In the industrial bottling process of edible oil, the filling department is the core equipment. When the edible oil in the storage tank needs to be pressurized by the oil pump, it is transported to multiple buffer tanks through the conveying pipeline. Then, the quantitative valve of the buffer tank controls the amount of oil input to the oil filling nozzle, so that the oil filling nozzle inputs oil into the oil bottle.

[0003] When the oil pump stops working, the delivery pipeline loses pumping pressure. Due to the influence of fluid viscosity and surface tension, the oil in the delivery pipeline cannot completely flow back to the storage tank, resulting in local accumulation. If such stagnant oil remains in the delivery pipeline for a long time, it will lead to oxidation and rancidity, and breed microbial contamination. This will cause the spoiled old oil to mix with the new oil during the production of the oil pump, affecting the consistency of product quality. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes an automatic oil discharge mechanism, which can solve the problem of oil residue remaining in the delivery pipeline when the oil pump stops working.

[0005] An automatic oil discharge mechanism according to an embodiment of this application includes:

[0006] Workbench;

[0007] A conveying device, located on top of the workbench, is used to convey oil bottles;

[0008] A filling device, located on top of the workbench, is used to fill oil bottles that are being transported.

[0009] The filling device includes a support frame, an oil pump, a storage tank, a filling seat, a conveying pipe, and an oil nozzle. The support frame is located on the top of the workbench, the filling seat is located on one side of the support frame, the oil nozzle is located at the bottom of the filling seat, the storage tank is located on the top of the workbench, the oil pump is located on one side of the storage tank, one end of the conveying pipe is connected to the oil outlet of the oil pump, and the other end of the conveying pipe is connected to the interior of the filling seat.

[0010] An oil extraction device is located on the top of the workbench and is used to extract the old oil inside the filling station.

[0011] The oil extraction device includes an old oil storage tank, an oil pump, an oil extraction manifold, an oil extraction valve, and an automatic oil discharge valve. The old oil storage tank is located on the top of the workbench, the oil pump is located on one side of the old oil storage tank, one end of the oil extraction manifold is connected to the oil inlet of the oil pump, the oil extraction valve is located on one side of the filling seat, the other end of the oil extraction manifold is connected to the oil extraction valve, and the automatic oil discharge valve is located at the bottom of the old oil storage tank. The automatic oil discharge valve is used to discharge the old oil inside the old oil storage tank.

[0012] The automatic oil draining mechanism according to the embodiments of this application has at least the following beneficial effects: When the edible oil bottling production line completes a batch or needs to be stopped, the oil pump will stop working. At this time, the pressure of the oil pump is lost in the conveying pipeline, and a portion of oil that cannot flow back to the storage tank by gravity will remain in the conveying pipeline. The oil extraction valve installed on one side of the filling seat opens, and the oil extraction pump is started at the same time. The suction of the oil extraction pump is transmitted to the inside of the filling seat and the conveying pipeline through the oil extraction manifold, so that the residual old oil in the conveying pipeline will be extracted into the old oil storage tank for centralized temporary storage, thereby timely collecting the residual oil and preventing this part of the oil from oxidizing and becoming rancid or breeding microorganisms in the conveying pipeline. When the old oil storage tank collects a certain amount of oil, the oil will become old oil because it has been stored in the old oil storage tank for a long time. The automatic oil draining valve installed at the bottom of the old oil storage tank will automatically open and enter a special waste oil collection container or treatment pipeline to prevent the old oil from being mixed into the production process again.

[0013] According to some embodiments of this application, the oil extraction device includes a connecting seat, an oil-blocking column, and a return spring. The bottom of the automatic oil drain valve has an oil drain cavity, and the top of the automatic oil drain valve has an oil inlet. The oil inlet communicates with the interior of the aged oil storage tank. The interior of the automatic oil drain valve has a connecting cavity, which communicates with the oil drain cavity and the oil inlet. One end of the return spring is located inside the oil drain cavity, and the oil-blocking column is connected to the other end of the return spring, so that the oil-blocking column is inserted into the oil drain cavity. The shape of the oil-blocking column matches that of the oil drain cavity. The connecting seat is located on one side of the oil-blocking column, and the connecting seat abuts against the bottom of the automatic oil drain valve.

[0014] According to some embodiments of this application, the oil extraction device includes a guide post and a slide rod. The guide post is located inside the oil discharge cavity and inside the return spring. One end of the guide post has a guide groove. The slide rod is located on the other side of the oil blocking post and slides in cooperation with the guide groove.

[0015] According to some embodiments of this application, the oil extraction device includes a positioning ring and a sealing gasket. The bottom of the automatic oil discharge valve is provided with a positioning slot. The positioning ring is located on one side of the connecting seat. The oil plug is located in the inner ring of the positioning ring. The shape of the positioning ring matches that of the positioning slot. The positioning ring is inserted into the positioning slot. The sealing gasket is elastic. The sealing gasket is located on one side of the connecting seat. The positioning ring is located in the inner ring of the sealing gasket. The sealing gasket abuts against the bottom of the automatic oil discharge valve.

[0016] According to some embodiments of this application, the filling device includes a buffer tank, a metering valve, and a conveying telescopic tube. The buffer tank is located on top of the filling base, and the interior of the buffer tank is connected to the interior of the filling base. The metering valve is located on one side of the buffer tank. One end of the conveying telescopic tube is connected to the metering valve, and the other end of the conveying telescopic tube is connected to the conveying pipeline.

[0017] According to some embodiments of this application, the filling device includes a setting seat, an adjusting seat, a movable seat, an adjusting slider, and a filling cylinder. The setting seat is located on one side of the support frame. An adjusting groove is laterally opened on one side of the adjusting seat. The adjusting slider is laterally located on one side of the setting seat. The adjusting groove and the adjusting slider are slidably engaged. The filling cylinder is vertically located on one side of the adjusting seat. The piston rod of the filling cylinder is connected to the movable seat. The buffer tank is located on one side of the movable seat.

[0018] According to some embodiments of this application, the filling device includes a fixing bolt, the top of the adjusting seat is provided with a fixing hole, the fixing hole communicates with the adjusting slide, and the fixing bolt is threadedly engaged with the fixing hole, so that the fixing bolt abuts against the adjusting slider.

[0019] According to some embodiments of this application, the filling device includes a lifting frame, a lifting screw, a lifting nut, and a lifting motor. The lifting frame is disposed on one side of the support frame, and a lifting cavity is formed on one side of the lifting frame. The lifting screw is rotatably connected to the lifting cavity. The lifting nut is sleeved on the outside of the lifting screw, so that the lifting nut and the lifting screw are threadedly engaged. The mounting seat is installed on one side of the lifting nut. The lifting motor is disposed at one end of the lifting frame, and the lifting motor drives the lifting screw to rotate.

[0020] According to some embodiments of this application, the filling device includes a guide frame and a guide slider. The guide slider is vertically disposed on one side of the mounting base, and a guide groove is vertically formed on one side of the guide frame. The guide slider slides in cooperation with the guide groove.

[0021] According to some embodiments of this application, the oil extraction device includes an oil extraction telescopic tube, which is connected to the oil extraction valve, and the other end of the oil extraction telescopic tube is connected to the main oil extraction pipe.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a schematic diagram of the automatic oil discharge mechanism according to an embodiment of this application;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the storage tank in the diagram;

[0026] Figure 3 for Figure 1 A schematic diagram of the structure of the buffer tank in the diagram;

[0027] Figure 4 for Figure 1 A schematic diagram of the structure of the mounting base;

[0028] Figure 5 for Figure 1 A schematic diagram of the structure of the aged oil storage tank;

[0029] Figure 6 for Figure 1 A schematic diagram of the positioning ring in the middle;

[0030] Figure 7 for Figure 1 A schematic diagram of the structure of the return spring in the middle;

[0031] Figure 8 for Figure 1 A schematic diagram of the oil inlet structure;

[0032] Figure 9 for Figure 1 A schematic diagram of the oil drain cavity in the middle.

[0033] Figure label:

[0034] Workbench 100;

[0035] Conveying device 200;

[0036] The following components are included: filling device 300, buffer tank 310, filling seat 311, oil nozzle 312, storage tank 320, oil pump 321, conveying pipeline 322, conveying telescopic pipe 323, metering valve 324, support frame 330, lifting frame 331, lifting cavity 332, lifting screw 333, lifting motor 334, guide frame 335, guide slide 336, guide slider 337, lifting nut 338, setting seat 340, adjusting seat 341, adjusting slider 342, adjusting slide 343, fixing hole 344, fixing bolt 345, filling cylinder 346, and movable seat 347.

[0037] Oil extraction device 400, oil extraction valve 410, oil extraction telescopic pipe 411, oil extraction main pipe 412, oil extraction pump 420, old oil storage tank 430, automatic oil discharge valve 440, oil discharge cavity 441, oil inlet 442, connecting cavity 443, return spring 444, guide column 445, guide groove 446, oil plugging column 450, slide rod 451, connecting seat 452, sealing gasket 453, positioning ring 454, positioning slot 455. Detailed Implementation

[0038] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0039] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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 this application.

[0040] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0041] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0042] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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.

[0043] Reference Figures 1 to 9 An automatic oil discharge mechanism according to an embodiment of this application includes:

[0044] Workbench 100;

[0045] A conveying device 200 is located on top of the workbench 100 and is used to convey oil bottles;

[0046] A filling device 300 is located on top of the workbench 100 and is used to fill oil bottles that are being transported.

[0047] The filling device 300 includes a support frame 330, an oil pump 321, a storage tank 320, a filling seat 311, a conveying pipe 322, and an oil nozzle 312. The support frame 330 is located on the top of the workbench 100, the filling seat 311 is located on one side of the support frame 330, the oil nozzle 312 is located at the bottom of the filling seat 311, the storage tank 320 is located on the top of the workbench 100, the oil pump 321 is located on one side of the storage tank 320, one end of the conveying pipe 322 is connected to the oil outlet of the oil pump 321, and the other end of the conveying pipe 322 is connected to the interior of the filling seat 311.

[0048] An oil extraction device 400 is located on top of the workbench 100 and is used to extract the old oil inside the filling station 311.

[0049] The oil extraction device 400 includes an old oil storage tank 430, an oil pump 420, an oil extraction manifold 412, an oil extraction valve 410, and an automatic oil discharge valve 440. The old oil storage tank 430 is located on the top of the workbench 100, the oil pump 420 is located on one side of the old oil storage tank 430, one end of the oil extraction manifold 412 is connected to the oil inlet of the oil pump 420, the oil extraction valve 410 is located on one side of the filling seat 311, the other end of the oil extraction manifold 412 is connected to the oil extraction valve 410, and the automatic oil discharge valve 440 is located at the bottom of the old oil storage tank 430. The automatic oil discharge valve 440 is used to discharge the old oil inside the old oil storage tank 430.

[0050] Understandably, when the edible oil bottling production line completes a batch or needs to be shut down, the oil delivery pump 321 will stop working. At this time, the pressure in the conveying pipe 322 will be lost due to the oil delivery pump 321, and some oil that cannot completely flow back to the storage tank 320 by gravity will remain in the conveying pipe 322. The oil extraction valve 410 installed on one side of the filling seat 311 will open, and the oil extraction pump 420 will start simultaneously. The suction force of the oil extraction pump 420 will be transmitted through the oil extraction manifold 412 to the inside of the filling seat 311 and the conveying pipe 322, causing the oil remaining in the conveying pipe to be discharged. The stale oil in pipeline 322 is drawn into the stale oil storage tank 430 for centralized temporary storage, thereby timely collection of residual oil and preventing this part of the oil from oxidizing and becoming rancid or breeding microorganisms in the pipeline 322. When the stale oil storage tank 430 collects a certain amount of oil, the oil will become stale oil due to its long storage time in the stale oil storage tank 430. The automatic oil drain valve 440 installed at the bottom of the stale oil storage tank 430 will automatically open and enter a special waste oil collection container or treatment pipeline to prevent the stale oil from being mixed into the production process again.

[0051] Reference Figures 6 to 9 According to some embodiments of this application, the oil extraction device 400 includes a connecting seat 452, an oil plugging column 450, and a return spring 444. The bottom of the automatic oil drain valve 440 is provided with an oil drain cavity 441, and the top of the automatic oil drain valve 440 is provided with an oil inlet 442, which connects to the interior of the old oil storage tank 430. The interior of the automatic oil drain valve 440 is provided with a connecting cavity 443, which connects the oil drain cavity 441 and the oil inlet 442. One end of the return spring 444 is located inside the oil drain cavity 441, and the oil plugging column 450 is connected to the other end of the return spring 444, so that the oil plugging column 450 is inserted into the oil drain cavity 441. The shape of the oil plugging column 450 matches that of the oil drain cavity 441. The connecting seat 452 is located on one side of the oil plugging column 450, and the connecting seat 452 abuts against the bottom of the automatic oil drain valve 440.

[0052] Understandably, when the amount of aged oil in the aged oil storage tank 430 is low, its total weight is less than the preload of the return spring 444, and the return spring 444 is in a contracted state. Under its elastic force, the oil-blocking column 450 is inserted into the oil drain cavity 441, and the connecting seat 452 abuts against the bottom of the automatic oil drain valve 440. At this time, the oil drain cavity 441 is closed, so the aged oil cannot be discharged. As the amount of aged oil in the aged oil storage tank 430 continues to accumulate, the amount of aged oil in the aged oil storage tank 430 increases, causing the total weight of the aged oil to exceed the preload of the return spring 444. The preload of the return spring 444 causes the oil plug 450 to move downward under the gravity of the oil. The oil plug 450 drives the return spring 444 to extend, opening the outlet of the oil drain cavity 441 and forming a flow channel. The oil drain cavity 441 will only be closed again when the total weight of the oil is less than the preload of the return spring 444. This allows the automatic oil drain valve 440 to automatically discharge oil quantitatively without any external power, air source or control signal, relying entirely on physical mechanisms, thus reducing manufacturing costs and maintenance complexity.

[0053] Reference Figures 6 to 9 According to some embodiments of this application, the oil extraction device 400 includes a guide post 445 and a slide rod 451. The guide post 445 is located inside the oil discharge cavity 441 and inside the return spring 444. One end of the guide post 445 is provided with a guide groove 446. The slide rod 451 is located on the other side of the oil blocking post 450 and slides in cooperation with the guide groove 446.

[0054] Understandably, when the total weight of the old oil is greater than the preload of the return spring 444, the oil plug 450 is forced to move downward under the gravity of the old oil, causing the slide rod 451 to slide into the guide groove 446. This provides highly precise linear guidance for the up and down movement of the oil plug 450, ensuring that the oil plug 450 always moves perpendicular to the opening of the oil drain cavity 441, so that when the oil plug 450 is reset, it can be aligned with the oil drain cavity 441.

[0055] Reference Figures 6 to 9 According to some embodiments of this application, the oil extraction device 400 includes a positioning ring 454 and a sealing gasket 453. The bottom of the automatic oil discharge valve 440 is provided with a positioning slot 455. The positioning ring 454 is located on one side of the connecting seat 452. The oil blocking column 450 is located in the inner ring of the positioning ring 454. The shape of the positioning ring 454 matches that of the positioning slot 455. The positioning ring 454 is inserted into the positioning slot 455. The sealing gasket 453 is elastic. The sealing gasket 453 is located on one side of the connecting seat 452. The positioning ring 454 is located in the inner ring of the sealing gasket 453. The sealing gasket 453 abuts against the bottom of the automatic oil discharge valve 440.

[0056] Understandably, when the oil plug 450 resets, the positioning ring 454 engages with the positioning slot 455. This engagement forces the position of the oil plug 450 relative to the oil drain cavity 441 in the radial direction, ensuring that the central axis of the oil plug 450 is aligned with the central axis of the oil drain cavity 441. Furthermore, the sealing gasket 453 abuts against the bottom of the automatic oil drain valve 440, filling the gap between the connecting seat 452 and the bottom of the automatic oil drain valve 440. This ensures that the oil drain cavity 441 remains sealed when the total weight of the residual oil is less than the preload of the return spring 444.

[0057] Reference Figure 3 According to some embodiments of this application, the filling device 300 includes a buffer tank 310, a metering valve 324, and a conveying telescopic pipe 323. The buffer tank 310 is located on top of the filling seat 311, and the interior of the buffer tank 310 is connected to the interior of the filling seat 311. The metering valve 324 is located on one side of the buffer tank 310. One end of the conveying telescopic pipe 323 is connected to the metering valve 324, and the other end of the conveying telescopic pipe 323 is connected to the conveying pipe 322.

[0058] Understandably, the oil pump 321 pressurizes and pumps the oil from the storage tank 320, and then transports it through the delivery pipeline 322. The oil first enters the buffer tank 310 located on top of the filling seat 311. The buffer tank 310, as an intermediate oil storage container, has a volume larger than the amount of oil required for a single filling. The main function of the buffer tank 310 is to receive and temporarily store the pressurized oil from the delivery pipeline 322, reducing the pressure fluctuations generated by the oil pump 321. This provides a relatively stable oil source for subsequent accurate metering, thereby ensuring that the amount of oil sprayed from the oil nozzle 312 is relatively balanced each time.

[0059] Reference Figures 1 to 4 According to some embodiments of this application, the filling device 300 includes a setting seat 340, an adjusting seat 341, a movable seat 347, an adjusting slider 342, and a filling cylinder 346. The setting seat 340 is located on one side of the support frame 330. An adjusting groove 343 is laterally opened on one side of the adjusting seat 341. The adjusting slider 342 is laterally located on one side of the setting seat 340. The adjusting groove 343 and the adjusting slider 342 are slidably engaged. The filling cylinder 346 is vertically located on one side of the adjusting seat 341. The piston rod of the filling cylinder 346 is connected to the movable seat 347. The buffer tank 310 is located on one side of the movable seat 347.

[0060] Understandably, when the conveying device 200 conveys oil bottles, the oil bottles are usually conveyed at intervals. When the batch of oil bottles changes, the size of the oil bottles will also change, and therefore the interval of the oil bottles will also change. The position of the original oil filling nozzle 312 can no longer correspond to the bottle mouth of the new batch of oil bottles. By adjusting the sliding cooperation between the sliding groove 343 and the adjusting slider 342, the adjusting seat 341 can be adjusted to adapt to the center position of oil bottles of different sizes. When the oil bottle reaches the position of the oil filling nozzle 312, the filling cylinder 346 drives the movable seat 347 to move, and the movable seat 347 drives the oil filling nozzle 312 to be inserted into the oil bottle for filling.

[0061] Reference Figures 1 to 4 According to some embodiments of this application, the filling device 300 includes a fixing bolt 345, and a fixing hole 344 is provided on the top of the adjusting seat 341. The fixing hole 344 is connected to the adjusting slide 343. The fixing bolt 345 is threadedly engaged with the fixing hole 344, so that the fixing bolt 345 abuts against the adjusting slider 342.

[0062] Understandably, when the adjusting seat 341 is adjusted to the appropriate position, the fixing bolt 345 is screwed into the fixing hole 344. When the end of the fixing bolt 345 is tightly against the adjusting slider 342, the axial pressure generated by the fixing bolt 345 will be converted into static friction between the adjusting slider 342 and the inner wall of the adjusting groove 343. This static friction effectively locks the relative sliding between the adjusting slider 342 and the adjusting groove 343, thus facilitating the fixation of the adjusting seat 341 after adjustment.

[0063] Reference Figures 1 to 4 According to some embodiments of this application, the filling device 300 includes a lifting frame 331, a lifting screw 333, a lifting nut 338, and a lifting motor 334. The lifting frame 331 is located on one side of the support frame 330, and a lifting cavity 332 is provided on one side of the lifting frame 331. The lifting screw 333 is rotatably connected to the lifting cavity 332. The lifting nut 338 is sleeved on the outside of the lifting screw 333, so that the lifting nut 338 and the lifting screw 333 are threadedly engaged. A mounting seat 340 is installed on one side of the lifting nut 338. The lifting motor 334 is located at one end of the lifting frame 331, and the lifting motor 334 drives the lifting screw 333 to rotate.

[0064] Understandably, when the batch of oil bottles changes, the height of the oil bottles will also change. In this case, if the height of the oil nozzle 312 is too high, it cannot be inserted into a shorter oil bottle. The lifting motor 334 is activated, which drives the lifting screw 333 to rotate. The lifting screw 333 drives the lifting nut 338 to descend, thereby causing the setting seat 340 to descend. Since the adjusting seat 341, movable seat 347, buffer tank 310, filling seat 311, oil nozzle 312, etc. are all located on the setting seat 340, the oil nozzle 312 is adjusted to a suitable insertion distance for shorter oil bottles. If the height of the oil bottle to be filled is too high, the lifting screw 333 drives the lifting nut 338 to rise, thereby causing the setting seat 340 to rise, so that the oil nozzle 312 can be adjusted to a suitable insertion distance for taller oil bottles.

[0065] Reference Figures 1 to 4 According to some embodiments of this application, the filling device 300 includes a guide frame 335 and a guide slider 337. The guide slider 337 is vertically disposed on one side of the mounting base 340. A guide groove 336 is vertically opened on one side of the guide frame 335. The guide slider 337 slides in cooperation with the guide groove 336.

[0066] It is understandable that when the lifting screw 333 drives the lifting nut 338 to rise or fall, the guide slider 337 of the mounting base 340 slides in conjunction with the guide groove 336. The guide groove 336 forcibly guides the guide slider 337 to move strictly along the vertical trajectory, ensuring that the linear movement direction of the oil nozzle 312 is absolutely vertical, thereby preventing the oil nozzle 312 from tilting after adjusting its height, which would result in an incorrect insertion position.

[0067] Reference Figures 1 to 4 According to some embodiments of this application, the oil pumping device 400 includes an oil pumping telescopic pipe 411, which is connected to an oil pumping valve 410, and the other end of the oil pumping telescopic pipe 411 is connected to an oil pumping main pipe 412.

[0068] Understandably, the elastic deformation of the oil extraction extension tube 411 compensates for the relative displacement between the oil extraction valve 410 and the interface of the main oil extraction tube 412 caused by the lifting and lowering of the filling seat 311. This avoids the pulling, twisting, and stress concentration caused by the relative displacement on the rigid pipe, thereby preventing the risk of leakage caused by the loosening of the oil extraction valve 410, pipe rupture, or deformation.

[0069] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. An oil discharge mechanism characterized by comprising: include: Workbench; A conveying device, located on top of the workbench, is used to convey oil bottles; A filling device, located on top of the workbench, is used to fill oil bottles that are being transported. The filling device includes a support frame, an oil pump, a storage tank, a filling seat, a conveying pipe, and an oil nozzle. The support frame is located on the top of the workbench, the filling seat is located on one side of the support frame, the oil nozzle is located at the bottom of the filling seat, the storage tank is located on the top of the workbench, the oil pump is located on one side of the storage tank, one end of the conveying pipe is connected to the oil outlet of the oil pump, and the other end of the conveying pipe is connected to the interior of the filling seat. An oil extraction device, located at the top of the workbench, is used to extract aged oil from inside the filling station. The oil extraction device includes an aged oil storage tank, an oil pump, an oil extraction manifold, an oil extraction valve, and an automatic oil discharge valve. The aged oil storage tank is located at the top of the workbench, the oil pump is located on one side of the aged oil storage tank, one end of the oil extraction manifold is connected to the oil inlet of the oil pump, the oil extraction valve is located on one side of the filling station, the other end of the oil extraction manifold is connected to the oil extraction valve, and the automatic oil discharge valve is located at the bottom of the aged oil storage tank and is used to discharge the aged oil inside the aged oil storage tank.

2. The automatic oil drain mechanism according to claim 1, characterized by The oil extraction device includes a connecting seat, an oil plugging column, and a return spring. The bottom of the automatic oil drain valve has an oil drain cavity, and the top of the automatic oil drain valve has an oil inlet. The oil inlet connects to the interior of the old oil storage tank. The interior of the automatic oil drain valve has a connecting cavity that connects the oil drain cavity and the oil inlet. One end of the return spring is located inside the oil drain cavity, and the oil plugging column is connected to the other end of the return spring, so that the oil plugging column is inserted into the oil drain cavity. The shape of the oil plugging column matches that of the oil drain cavity. The connecting seat is located on one side of the oil plugging column, and the connecting seat abuts against the bottom of the automatic oil drain valve.

3. The automatic oil drain mechanism according to claim 2, characterized by The oil extraction device includes a guide column and a slide rod. The guide column is located inside the oil discharge cavity and inside the return spring. One end of the guide column has a guide groove. The slide rod is located on the other side of the oil blocking column and slides in conjunction with the guide groove.

4. The automatic oil drain mechanism according to claim 3, characterized by The oil extraction device includes a positioning ring and a sealing gasket. The bottom of the automatic oil discharge valve has a positioning slot. The positioning ring is located on one side of the connecting seat. The oil plug is located on the inner ring of the positioning ring. The shape of the positioning ring matches the positioning slot. The positioning ring is inserted into the positioning slot. The sealing gasket is elastic. The sealing gasket is located on one side of the connecting seat. The positioning ring is located on the inner ring of the sealing gasket. The sealing gasket abuts against the bottom of the automatic oil discharge valve.

5. The automatic oil drain mechanism according to claim 1, characterized by The filling device includes a buffer tank, a metering valve, and a conveying telescopic pipe. The buffer tank is located on top of the filling base, and the interior of the buffer tank is connected to the interior of the filling base. The metering valve is located on one side of the buffer tank. One end of the conveying telescopic pipe is connected to the metering valve, and the other end of the conveying telescopic pipe is connected to the conveying pipeline.

6. The automatic oil drain mechanism according to claim 5, characterized by The filling device includes a setting seat, an adjusting seat, a movable seat, an adjusting slider, and a filling cylinder. The setting seat is located on one side of the support frame. An adjusting groove is laterally opened on one side of the adjusting seat. The adjusting slider is laterally located on one side of the setting seat. The adjusting groove and the adjusting slider are slidably engaged. The filling cylinder is vertically located on one side of the adjusting seat. The piston rod of the filling cylinder is connected to the movable seat. The buffer tank is located on one side of the movable seat.

7. The automatic oil drain mechanism according to claim 6, characterized by The filling device includes a fixing bolt, and the top of the adjusting seat has a fixing hole that communicates with the adjusting slide. The fixing bolt is threaded into the fixing hole, so that the fixing bolt abuts against the adjusting slider.

8. The automatic oil discharge mechanism according to claim 7, characterized in that, The filling device includes a lifting frame, a lifting screw, a lifting nut, and a lifting motor. The lifting frame is located on one side of the support frame, and a lifting cavity is formed on one side of the lifting frame. The lifting screw is rotatably connected to the lifting cavity. The lifting nut is sleeved on the outside of the lifting screw, so that the lifting nut and the lifting screw are threadedly engaged. The mounting seat is installed on one side of the lifting nut. The lifting motor is located at one end of the lifting frame, and the lifting motor drives the lifting screw to rotate.

9. The automatic oil drain mechanism of claim 8, wherein The filling device includes a guide frame and a guide slider. The guide slider is vertically disposed on one side of the mounting base. A guide groove is vertically formed on one side of the guide frame, and the guide slider slides in cooperation with the guide groove.

10. The automatic oil discharge mechanism according to claim 9, characterized in that, The oil extraction device includes an oil extraction telescopic pipe, which is connected to the oil extraction valve, and the other end of the oil extraction telescopic pipe is connected to the main oil extraction pipe.

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