A waste oil recovery device for dismantling a scrapped automobile
By designing a waste oil recycling device that seals the oil tank with air and automatically unlocks it, the problem of low discharge efficiency caused by the high viscosity of waste oil is solved, achieving efficient recycling and safe discharge of waste oil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING TIANJIAO DISCARDED AUTO RECYCLING & PROC CO LTD
- Filing Date
- 2023-12-15
- Publication Date
- 2026-07-14
AI Technical Summary
During the dismantling of scrapped cars, the waste oil in the fuel tank has a high viscosity, resulting in low discharge efficiency, and existing technologies are unable to recycle it efficiently.
A waste oil recycling device for dismantling scrapped cars is adopted. The device injects air into the fuel tank body through the fuel filling pipe, exhaust pipe, return pipe and fuel inlet pipe through the air injection mechanism, so as to seal the inner cavity of the fuel tank. The residual gasoline is blown into the fuel tank by the gas and discharged into the recycling tank through the drain pipe. Combined with the lifting drive mechanism and unlocking block design, the drain plug is automatically unlocked and sealed to ensure the complete discharge of waste oil.
It improves the efficiency of waste oil discharge, reduces waste oil residue, lowers the possibility of gasoline evaporation and splashing, and enhances the thoroughness and safety of waste oil recycling.
Smart Images
Figure CN117720058B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive waste oil recycling technology, and in particular to a waste oil recycling device for dismantling scrapped vehicles. Background Technology
[0002] Motor vehicles that have reached the national scrapping standard, or those that have not reached the national scrapping standard but whose engines or chassis are severely damaged and which, upon inspection, do not meet the national motor vehicle operation safety technical conditions or the national motor vehicle pollutant emission standards, are called scrapped vehicles.
[0003] During the dismantling and recycling of end-of-life vehicles, it is necessary to recover and reuse the waste oil remaining in the fuel tanks to increase the added value and energy utilization rate of the dismantling and processing. However, during the recovery of waste oil from the fuel tank, the long residual time of the waste oil leads to its high viscosity at the bottom of the tank, which in turn prolongs the discharge time from the drain port at the bottom of the tank, reducing the efficiency of waste oil recovery. Therefore, further improvements are needed. Summary of the Invention
[0004] In order to improve the recycling efficiency of waste oil from fuel tanks, this application provides a waste oil recycling device for dismantling scrapped automobiles.
[0005] The waste oil recovery device for dismantling scrapped automobiles provided in this application adopts the following technical solution:
[0006] A waste oil recycling device for dismantling scrapped vehicles includes a support frame, a platform mounted on the support frame, a fuel tank body placed on the platform, and a recycling tank located below the fuel tank body. The platform is provided with a positioning base frame for placing the fuel tank body. The fuel tank body has a refueling pipe, an exhaust pipe, a return pipe, an inlet pipe, and a drain pipe connected to its inner cavity. The drain pipe is exposed below the positioning base frame. The fuel tank body is detachably connected to a drain plug for sealing the opening of the drain pipe. An oil receiving cylinder is provided on the upper part of the recycling tank. The platform is provided with an air injection mechanism for injecting air into the refueling pipe, exhaust pipe, return pipe, and inlet pipe.
[0007] By adopting the above technical solution, the disassembled fuel tank body is placed on a platform, and the fuel filling pipe, exhaust pipe, return pipe, and inlet pipe on the fuel tank body are injected with air through an air injection mechanism. On the one hand, this keeps the internal cavity of the fuel tank body in a closed environment, reducing the possibility of gasoline evaporating from the fuel filling pipe, exhaust pipe, return pipe, and inlet pipe to the outside of the fuel tank body. On the other hand, by injecting air into the fuel filling pipe, exhaust pipe, return pipe, and inlet pipe, the gasoline remaining in each pipe is blown into the fuel tank body, reducing gasoline residue and improving the thoroughness of gasoline recovery. Furthermore, a certain amount of gas is introduced into the fuel tank body, so that the adhering waste oil is first collected as much as possible at the drain pipe opening. Then, the drain plug is opened, and the gasoline is discharged from the drain pipe and enters the recovery tank through the oil receiving pipe. During the oil discharge process, the internal cavity of the fuel tank body is continuously injected with air, which improves the discharge efficiency of waste oil and reduces waste oil residue.
[0008] Preferably, the platform is vertically slidably connected to the support frame, and the support frame is provided with a lifting drive mechanism for driving the platform to move up and down.
[0009] By adopting the above technical solution, the lifting drive mechanism drives the platform to a lower position. After the staff places the disassembled oil tank body on the platform, the lifting drive mechanism drives the platform to rise, and then the recovery tank is moved to the bottom of the platform. In addition, the height of the platform is adjusted so that the oil tank body is at a suitable height, reducing the possibility of waste oil splashing onto the inner wall of the oil receiving cylinder during the oil discharge process.
[0010] Preferably, the air injection mechanism includes an air injection main pipe, a plurality of air injection branch pipes connected to the air injection main pipe and respectively detachably connected to the refueling pipe / exhaust pipe / return pipe / inlet pipe, and an air injection pump disposed on the platform to supply air to the air injection main pipe.
[0011] By adopting the above technical solution, a gas injection pump is used to continuously supply gas to the main gas injection pipe and the gas injection branch pipes.
[0012] Preferably, the drain plug is threaded into the drain pipe, and one end of the drain plug is coaxially fixedly connected to a screw cap. The cross-section of the screw cap is a regular polygon. The oil receiving cylinder is rotatably connected to the top wall of the recovery tank. An unlocking block is provided inside the oil receiving cylinder and is axially slidably connected to the oil receiving cylinder. The upper end face of the unlocking block is provided with an unlocking groove adapted to the screw cap for the screw cap to be inserted. The unlocking block and the oil receiving cylinder are circumferentially linked. The inner wall of the oil receiving cylinder is provided with a first elastic element that forces the unlocking block to move upward under normal conditions. There is an oil flow channel between the outer wall of the unlocking block and the inner circumferential wall of the oil receiving cylinder, which communicates with the inner cavity of the recovery tank.
[0013] By adopting the above technical solution, after the disassembled oil tank body is placed on the platform, the lifting drive mechanism drives the platform to rise, and then moves the recovery tank directly under the platform. Simultaneously, the lifting drive mechanism drives the platform to descend, causing the cap of the drain plug on the oil tank body to insert into the unlocking groove on the unlocking block. Then, by rotating the oil receiving cylinder, the worker rotates the unlocking block, causing the cap and drain plug to rotate and retract together. During the retraction and sliding of the drain plug away from the drain pipe, the unlocking block moves closer to the recovery tank. After the drain plug is unlocked, the tank body slides in the direction of the valve body. Then, the valve body is continuously pressurized by the air injection mechanism. When the pressure inside the tank body exceeds the elastic threshold of the elastic element, the gasoline inside the tank body pushes the drain plug and the unlocking block to slide closer to the recovery tank, so that the drain plug and the drain pipe are completely separated. The gasoline inside the tank body flows into the recovery tank through the drain pipe and the oil flow channel, effectively reducing the possibility of gasoline flowing onto the hands of the workers when they unlock the drain plug and remove it.
[0014] Preferably, the oil receiving cylinder is sleeved on the oil drain pipe, and the upper end face of the oil receiving cylinder abuts against the lower end face of the oil tank body.
[0015] By adopting the above technical solution, the lifting drive mechanism drives the platform to descend, so that the lower end face of the fuel tank body abuts against the upper end face of the fuel receiving cylinder, and the cap of the drain plug on the fuel tank body is inserted into the unlocking groove on the unlocking block, effectively reducing the possibility of gasoline evaporating into the outside during the subsequent fuel discharge process.
[0016] Preferably, a sealing ring plate is coaxially fixedly sleeved on the outer peripheral wall of the unlocking block, the outer peripheral wall of the sealing ring plate abuts against the inner peripheral wall of the oil receiving cylinder, and an oil flow pipe communicating with the inner cavity of the recovery tank is fixedly passed through the bottom wall of the oil receiving cylinder. Multiple oil flow pipes are provided and distributed around the axis of the oil receiving cylinder, and the axial direction of the oil flow pipe is parallel to the axial direction of the oil receiving cylinder. An insert tube that slides axially into the oil flow pipe is fixedly passed through the sealing ring plate, and the inner cavity of the insert tube communicates with the inner cavity of the oil flow pipe.
[0017] By adopting the above technical solution, an oil flow pipe and an insertion pipe are added to achieve a sliding assembly of the unlocking block and the oil receiving cylinder. The inner cavity of the insertion pipe is connected to the inner cavity of the oil flow pipe, so that the inner cavities of the insertion pipe and the oil flow pipe form an oil flow channel. The gasoline in the fuel tank body flows into the recovery tank in sequence through the drain pipe, the insertion pipe and the oil flow pipe.
[0018] Preferably, the inner circumferential wall of the oil pipe is fixedly connected with a sealing sheet that normally seals its inner cavity. Multiple sealing sheets are provided and distributed around the circumference of the oil pipe. The sealing sheets are elastically arranged. When the insertion tube slides towards the recovery tank, the end of the insertion tube abuts against the sealing sheet, thereby forcing the sealing sheet to bend and deform, thus connecting the oil pipe and the insertion tube.
[0019] By adopting the above technical solution, during the retraction and sliding of the drain plug and unlocking block, the insertion tube is driven to slide towards the recovery tank. The lower end of the insertion tube abuts against the sealing plate, forcing the sealing plate to bend and deform, thus connecting the oil flow pipe and the insertion tube. After the oil is drained, the lifting drive mechanism drives the platform to rise, causing the drain pipe on the oil tank body to separate from the oil receiving cylinder. The first elastic element forces the unlocking block to move upward and reset, thereby driving the insertion tube to move upward, so that the lower end of the insertion tube is above the sealing plate. The sealing plate elastically resets and re-closes the inner cavity of the oil flow pipe, effectively reducing the possibility of gasoline in the recovery tank evaporating from the liquid flow channel to the outside.
[0020] Preferably, the bottom inner wall of the oil receiving cylinder is fixedly connected to an installation block. The upper end face of the installation block is provided with a vertical insertion groove, and the inner side wall of the insertion groove is provided with a horizontal sliding groove. The installation block is provided with a limiting block that is slidably connected to the sliding groove. The lower end face of the unlocking block is protruding and fixedly connected to an insertion block. The side wall of the insertion block is provided with a limiting groove for the limiting block to slide and insert. A second elastic element is provided in the sliding groove, which normally forces the limiting block to slide towards the limiting groove. The end of the limiting block has a guide surface for the lower end face of the insertion block to abut against, thereby forcing the limiting block to retract into the sliding groove. The oil receiving cylinder is provided with an unlocking element that drives the limiting block to retract into the sliding groove.
[0021] By adopting the above technical solution, after the drain plug is unlocked, the gas injection mechanism quickly injects gas into the inner cavity of the fuel tank, causing the fuel tank to pressurize rapidly. This causes the gasoline in the fuel tank to push the drain plug and the unlocking block to continue sliding back towards the recovery tank. As the unlocking block continues to slide towards the recovery tank, the insertion block slides into the insertion groove, and the lower end face of the insertion block abuts against the guide surface on the limiting block, causing the limiting block to retract into the sliding groove. At this time, the second elastic element undergoes elastic deformation. When the insertion block slides to the position corresponding to the limiting groove and the limiting block, the second elastic element forces the limiting block to slide into the limiting groove, limiting the sliding of the insertion block. At this time, the drain plug and the drain pipe are completely disengaged, and there is no need to inject gas into the inner cavity of the fuel tank. After the gasoline is completely discharged, the unlocking element drives the limiting block to retract into the sliding groove, thereby releasing the sliding restriction on the insertion block. The first elastic element forces the unlocking block to move upward and reset.
[0022] Preferably, the mounting block has an unlocking channel communicating with the sliding groove, and the unlocking component is an unlocking rope passing through the unlocking channel. One end of the unlocking rope is fixedly connected to the limiting block, and the other end of the unlocking rope passes through the side wall of the oil receiving cylinder. The unlocking rope is fixedly connected to a pull ring placed outside the oil receiving cylinder.
[0023] By adopting the above technical solution, after the gasoline is completely discharged, the unlocking rope is pulled by the pull ring to drive the limiting block to retract into the sliding groove, thereby releasing the sliding restriction on the plug block, and the first elastic element forces the unlocking block to move upward and reset.
[0024] Preferably, the upper end face of the oil receiving cylinder is provided with a sealing groove, the oil receiving cylinder is provided with a sealing bladder built into the sealing groove, the mounting block is provided with an adjusting bladder built into the insertion groove and located below the sliding groove, and an air tube is connected between the sealing bladder and the adjusting bladder.
[0025] By adopting the above technical solution, for fuel tank bodies with an arc or curved lower end face, there is a gap between the upper end face of the fuel receiving cylinder and the lower surface of the fuel tank body. During the process of the plug-in block sliding and inserting into the plug-in groove, the plug-in block squeezes the regulating bladder in the plug-in groove, thereby driving the gas in the regulating bladder to the sealing bladder through the air pipe, causing the sealing bladder to expand and press against the lower surface of the fuel tank body, improving the sealing performance between the fuel receiving cylinder and the fuel tank body, and effectively reducing the possibility of gasoline evaporating from the gap between the fuel receiving cylinder and the fuel tank body to the outside during the fuel discharging process.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. Place the disassembled fuel tank body on the platform. Use the air injection mechanism to inject air into the fuel filler pipe, exhaust pipe, return pipe, and inlet pipe of the fuel tank body. On the one hand, this creates a closed environment inside the fuel tank body, reducing the possibility of gasoline evaporating from the fuel filler pipe, exhaust pipe, return pipe, and inlet pipe to the outside of the fuel tank body. On the other hand, by injecting air into the fuel filler pipe, exhaust pipe, return pipe, and inlet pipe, the gasoline remaining in each pipe is blown into the fuel tank body, reducing gasoline residue and improving the thoroughness of gasoline recovery. Furthermore, a certain amount of gas is introduced into the fuel tank body, so that the adhering waste oil is first collected as much as possible at the drain pipe opening. Then, the drain plug is opened, and the gasoline is discharged from the drain pipe and enters the recovery tank through the oil receiving pipe. During the oil discharge process, air is continuously injected into the internal cavity of the fuel tank body to improve the discharge efficiency of waste oil and reduce waste oil residue.
[0028] 2. The cap of the drain plug on the fuel tank body is inserted into the unlocking groove on the unlocking block. Then, the operator rotates the fuel receiving cylinder, causing the unlocking block to rotate together, so that the cap and drain plug rotate and retract together. As the drain plug slides back away from the drain pipe, it drives the unlocking block to slide closer to the recovery tank. After the drain plug is unlocked, the fuel tank body is continuously pressurized by the air injection mechanism. When the pressure inside the fuel tank body exceeds the elastic threshold of the elastic element, the gasoline in the fuel tank body pushes the drain plug and the unlocking block to continue sliding closer to the recovery tank, so that the drain plug and the drain pipe are completely separated. The gasoline in the fuel tank body flows into the recovery tank through the drain pipe and the oil flow channel, effectively reducing the possibility of gasoline flowing onto the operator's hands when the operator unlocks and removes the drain plug.
[0029] 3. During the retraction and sliding of the drain plug and unlocking block, the insertion tube slides towards the recovery tank. The lower end of the insertion tube abuts against the sealing plate, forcing the sealing plate to bend and deform, thus connecting the oil flow pipe and the insertion tube. After the oil is drained, the lifting drive mechanism drives the platform to rise, causing the drain pipe on the tank body to separate from the receiving cylinder. The first elastic element forces the unlocking block to move upward and reset, thereby moving the insertion tube upward so that the lower end of the insertion tube is above the sealing plate. The sealing plate elastically resets and re-closes the inner cavity of the oil flow pipe, effectively reducing the possibility of gasoline in the recovery tank evaporating from the liquid flow channel to the outside. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the overall structure of a waste oil recycling device for dismantling scrapped cars in Example 1.
[0031] Figure 2 This is a schematic diagram of the stage in Example 1.
[0032] Figure 3 This is a schematic diagram of the oil drain pipe in Example 1.
[0033] Figure 4 This is a schematic diagram of the oil receiving cylinder and unlocking block in Example 1.
[0034] Figure 5 This is a schematic diagram of the sealing sheet in Example 1.
[0035] Figure 6 This is a schematic diagram of the mounting block and plug-in block in Example 1.
[0036] Figure 7 This is a schematic diagram of the mounting block and plug-in block in Embodiment 2.
[0037] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Base; 12. Support arm; 13. Top plate; 14. Vertical guide rod; 15. Lifting drive mechanism; 151. Lifting screw; 152. Lifting motor; 2. Platform; 21. Positioning base frame; 22. Positioning cavity; 3. Oil tank body; 31. Filling pipe; 32. Exhaust pipe; 33. Oil inlet pipe; 34. Oil return pipe; 35. Oil drain pipe; 36. Oil drain plug; 37. Cap; 4. Recovery tank; 5. Air injection mechanism; 51. Air injection main pipe; 52. Air injection manifold; 53. Air injection pump; 6. Oil receiving cylinder; 61. Oil flow pipe; 62. Sealing plate; 63. First spring; 64. Mounting block; 641. Insertion groove; 642. Sliding groove; 643. Limiting block; 644. Guide surface; 645. Second spring; 646. Unlocking rope; 647. Pull ring; 65. Sealing bladder; 66. Adjusting bladder; 67. Air pipe; 7. Unlocking block; 71. Unlocking groove; 72. Sealing ring plate; 73. Insertion tube; 74. Insertion block; 75. Limiting groove. Detailed Implementation
[0038] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.
[0039] Example 1:
[0040] This application discloses a waste oil recovery device for dismantling scrapped vehicles, referring to... Figure 1 The system includes a support frame 1, a platform 2 mounted on the support frame 1, an oil tank body 3 placed on the platform 2, and a recovery tank 4 located below the oil tank body 3. The support frame 1 includes a base 11, a support arm 12 fixedly connected to the upper surface of the base 11, and a top plate 13 fixedly connected to the upper part of the support arm 12. The recovery tank 4 is placed on the upper surface of the base 11.
[0041] The platform 2 is vertically slidably connected to the support arm 12. Specifically, a vertical guide rod 14 is fixedly connected between the base 11 and the top plate 13, and the platform 2 is slidably sleeved on the vertical guide rod 14. The support frame 1 is provided with a lifting drive mechanism 15 for driving the platform 2 to rise and slide. The lifting drive mechanism 15 includes a lifting screw 151 rotatably connected between the top plate 13 and the base 11 and a lifting motor 152 fixedly connected to the upper end face of the top plate 13. The lifting screw 151 is threaded through the platform 2, and the output shaft of the lifting motor 152 is coaxially fixedly connected to the lifting screw 151.
[0042] Reference Figure 2 , Figure 3 The platform 2 is fixedly connected to a positioning base frame 21, which has a positioning cavity 22 for placing the fuel tank body 3. The fuel tank body 3 has a refueling pipe 31, an exhaust pipe 32, a return pipe 34, an inlet pipe 33, and a drain pipe 35 connected to the inner cavity. The drain pipe 35 is located on the bottom wall of the fuel tank body 3 and passes through the positioning cavity 22. The fuel tank body 3 is detachably connected to a drain plug 36 for sealing the opening of the drain pipe 35. Specifically, the drain plug 36 is threaded into the drain pipe 35, and a screw cap 37 is coaxially fixedly connected to the lower end of the drain plug 36. The cross-section of the screw cap 37 is a regular polygon. In this embodiment, the cross-section of the screw cap 37 is a regular hexagon.
[0043] Reference Figure 1 , Figure 2The platform 2 is equipped with an air injection mechanism 5 for injecting air into the refueling pipe 31, the exhaust pipe 32, the return pipe 34, and the inlet pipe 33. The air injection mechanism 5 includes an air injection main pipe 51, several air injection branch pipes 52 connected to the air injection main pipe 51 and respectively detachably connected to the refueling pipe 31 / exhaust pipe 32 / return pipe 34 / inlet pipe 33, and an air injection pump 53 installed on the platform 2 to supply air to the air injection main pipe 51. The air injection pump 53 and the air injection main pipe 51 are both fixedly connected to the platform 2. The air injection branch pipes 52 are flexible hoses, and the ends of the air injection branch pipes 52 are connected to the respective pipelines through quick-release couplings.
[0044] Reference Figure 4 An oil receiving cylinder 6 is rotatably connected to the top wall of the recovery tank 4. The upper end of the oil receiving cylinder 6 is open, and the lower end is closed. The upper end of the oil receiving cylinder 6 abuts against the lower end of the oil tank body 3. A rotating rod is fixedly protruding from the outer peripheral wall of the oil receiving cylinder 6. A rotating groove for rotatably connecting the oil receiving cylinder 6 is coaxially opened through the top wall of the recovery tank 4. An unlocking block 7 is slidably connected to the oil receiving cylinder 6 inside the oil receiving cylinder 6. A first elastic element, which forces the unlocking block 7 to slide upward under normal conditions, is provided on the inner wall of the oil receiving cylinder 6. The first elastic element is a first spring 63. The upper end of the first spring 63 is fixedly connected to the lower end of the unlocking block 7, and the lower end of the first spring 63 is fixedly connected to the bottom inner wall of the oil receiving cylinder 6.
[0045] Reference Figure 4 , Figure 5 The upper surface of the unlocking block 7 has an unlocking groove 71 adapted to the screw cap 37 for insertion. The unlocking block 7 and the oil receiving cylinder 6 are circumferentially linked. Specifically, a sealing ring plate 72 is coaxially fixedly sleeved on the outer peripheral wall of the unlocking block 7. The outer peripheral wall of the sealing ring plate 72 abuts against the inner peripheral wall of the oil receiving cylinder 6. An oil flow pipe 61 communicating with the inner cavity of the recovery tank 4 is fixedly inserted through the bottom wall of the oil receiving cylinder 6. Multiple oil flow pipes 61 are provided and distributed around the axis of the oil receiving cylinder 6. The axial direction of the oil flow pipes 61 is parallel to the axial direction of the oil receiving cylinder 6. An insert tube 73 is fixedly inserted through the sealing ring plate 72 and slidably inserted into the oil flow pipe 61 along the axial direction. The inner cavity of the insert tube 73 communicates with the inner cavity of the oil flow pipe 61. The inner cavity of the insert tube 73 and the inner cavity of the oil flow pipe 61 form an oil flow channel. A sealing plate 62 is fixedly connected to the inner circumferential wall of the oil flow pipe 61, which normally seals its inner cavity. Multiple sealing plates 62 are provided and distributed around the circumference of the oil flow pipe 61. The sealing plate 62 is elastically set. When the insertion tube 73 slides towards the recovery tank 4, the end of the insertion tube 73 abuts against the sealing plate 62, thereby forcing the sealing plate 62 to bend and deform, so that the inner cavities of the oil flow pipe 61 and the insertion tube 73 are connected.
[0046] Reference Figure 5 , Figure 6An installation block 64 is fixedly connected to the bottom inner wall of the oil receiving cylinder 6. A vertical insertion groove 641 is formed on the upper surface of the installation block 64, and a horizontal sliding groove 642 is formed on the inner side wall of the insertion groove 641. A limiting block 643 is provided on the installation block 64 and slidably connected to the sliding groove 642. An insertion block 74 is fixedly connected to the lower surface of the unlocking block 7. A limiting groove 75 is formed on the side wall of the insertion block 74 and slidably inserted into the limiting block 643. A second elastic element, a second spring 645, is provided in the sliding groove 642, which normally forces the limiting block 643 to slide towards the limiting groove 75. One end of the second spring 645 is fixedly connected to the limiting block 643, and the other end is fixedly connected to the inner wall of the sliding groove 642.
[0047] The end of the limiting block 643 has a guide surface 644 for the lower end face of the insertion block 74 to abut against, thereby forcing the limiting block 643 to retract into the sliding groove 642. The oil receiving cylinder 6 is provided with an unlocking component that drives the limiting block 643 to retract into the sliding groove 642. The mounting block 64 has an unlocking channel communicating with the sliding groove 642. The unlocking component is an unlocking rope 646 that passes through the unlocking channel. One end of the unlocking rope 646 is fixedly connected to the limiting block 643, and the other end of the unlocking rope 646 passes through the side wall of the oil receiving cylinder 6. The unlocking rope 646 is fixedly connected to a pull ring 647 that is placed outside the oil receiving cylinder 6.
[0048] The implementation principle of the waste oil recovery device for dismantling scrapped vehicles in this embodiment is as follows: The dismantled fuel tank body 3 is placed on the platform 2, and each air injection branch pipe 52 is connected to the fuel filler pipe 31, exhaust pipe 32, return pipe 34 and inlet pipe 33 on the fuel tank body 3. Air is supplied to the main air injection pipe 51 and the air injection branch pipes 52 by the air injection pump 53. On the one hand, the inner cavity of the fuel tank body 3 is in a closed environment, reducing the possibility of gasoline in the fuel tank body 3 evaporating from the fuel filler pipe 31, exhaust pipe 32, return pipe 34 and inlet pipe 33 to the outside of the fuel tank body 3; on the other hand, the gasoline remaining in each pipe is blown into the fuel tank body 3, reducing gasoline residue and improving the thoroughness of gasoline recovery.
[0049] Next, the lifting drive mechanism 15 drives the platform 2 to rise, and after placing the recovery tank 4 on the base 11, the lifting drive mechanism 15 drives the platform 2 to fall, so that the cap 37 of the drain plug 36 on the oil tank body 3 is inserted into the unlocking groove 71 on the unlocking block 7. Then, the operator rotates the oil receiving cylinder 6 by rotating the lever, which drives the unlocking block 7 to rotate together, so that the cap 37 and the drain plug 36 rotate and retract together. During the retraction and sliding of the drain plug 36 away from the drain pipe 35, the unlocking block 7 is driven to slide towards the recovery tank 4. During the retraction and sliding of the unlocking block 7, the insertion tube 73 is driven to slide towards the recovery tank 4. The lower end of the insertion tube 73 abuts against the sealing plate 62, forcing the sealing plate 62 to bend and deform, so that the oil flow pipe 61 and the insertion tube 73 are connected.
[0050] After the drain plug 36 is unlocked, the air pump 53 rapidly injects air into the inner cavity of the fuel tank body 3, causing a rapid pressurization within the fuel tank body 3. When the pressure inside the fuel tank body 3 exceeds the elastic threshold of the elastic element, the gasoline inside the fuel tank body 3 pushes the drain plug 36 and the unlocking block 7 to continue sliding towards the recovery tank 4. During the process of the unlocking block 7 continuing to slide towards the recovery tank 4, the insertion block 74 slides into the insertion groove 641, and the lower end face of the insertion block 74 abuts against the guide surface 644 on the limiting block 643, causing the limiting block 643 to retract into the sliding groove 642. When the second spring 645 undergoes elastic deformation, and the insertion block 74 slides to the position corresponding to the position of the limiting groove 75 and the limiting block 643, the second elastic element forces the limiting block 643 to slide and insert into the limiting groove 75, thereby limiting the sliding of the insertion block 74. At this time, the drain plug 36 and the drain pipe 35 are completely disengaged, and there is no need to inject air into the inner cavity of the fuel tank body 3. The gasoline in the fuel tank body 3 flows into the recovery tank 4 through the drain pipe 35, the insertion pipe 73, and the flow pipe 61, effectively reducing the possibility of gasoline flowing onto the human hand during the process of unlocking the drain plug and removing the drain plug 36.
[0051] After the gasoline is completely discharged, the unlocking rope 646 is pulled by the pull ring 647 to drive the limiting block 643 to retract into the sliding groove 642, thereby releasing the sliding restriction on the insertion block 74. The first spring forces the unlocking block 7 to move upward and reset, thereby driving the insertion tube 73 to move upward, so that the lower end of the insertion tube 73 is above the sealing plate 62. The sealing plate 62 elastically resets and re-seales the inner cavity of the oil flow pipe 61, effectively reducing the possibility of gasoline in the recovery tank 4 evaporating from the liquid flow channel to the outside.
[0052] Example 2:
[0053] Reference Figure 5 The difference between this embodiment and Embodiment 1 is that, referring to... Figure 7 The upper end face of the oil receiving cylinder 6 is provided with a sealing groove, and the oil receiving cylinder 6 is provided with a sealing bladder 65 built into the sealing groove. The mounting block 64 is provided with an adjusting bladder 66 built into the insertion groove 641 and located below the sliding groove 642. An air pipe 67 is connected between the sealing bladder 65 and the adjusting bladder 66.
[0054] The implementation principle of Example 2 is as follows: During the process of the insertion block 74 sliding into the insertion slot 641, the insertion block 74 squeezes the regulating bladder 66 in the insertion slot 641, thereby driving the gas in the regulating bladder 66 to the sealing bladder 65 through the air pipe 67, causing the sealing bladder 65 to expand and press against the lower surface of the fuel tank body 3, improving the sealing between the fuel receiving cylinder 6 and the fuel tank body 3, and effectively reducing the possibility of gasoline evaporating from the gap between the fuel receiving cylinder 6 and the fuel tank body 3 to the outside during the fuel discharge process.
[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A waste oil recycling device for dismantling scrapped automobiles, characterized in that: The system includes a support frame (1), a platform (2) mounted on the support frame (1), a fuel tank body (3) placed on the platform (2), and a recovery tank (4) located below the fuel tank body (3). The platform (2) is provided with a positioning base frame (21) for placing the fuel tank body (3). The fuel tank body (3) has a refueling pipe (31), an exhaust pipe (32), a return pipe (34), an inlet pipe (33), and a drain pipe (35) connected to the inner cavity. The drain pipe (35) is exposed below the positioning base frame (21). The fuel tank body (3) is detachably connected with a drain plug (36) to seal the opening of the drain pipe (35). The upper part of the recovery tank (4) is provided with... There is an oil receiving cylinder (6), and the platform (2) is equipped with an air injection mechanism (5) for injecting air into the oil filling pipe (31), the exhaust pipe (32), the return oil pipe (34) and the inlet pipe (33); the oil drain plug (36) is threaded into the oil drain pipe (35), and one end of the oil drain plug (36) is coaxially fixedly connected to a swivel cap (37). The cross-section of the swivel cap (37) is a regular polygon. The oil receiving cylinder (6) is rotatably connected to the top wall of the recovery tank (4). The oil receiving cylinder (6) is provided with an unlocking block (7) that slides axially and is connected to the oil receiving cylinder (6). The upper end face of the unlocking block (7) is provided with an unlocking groove (7) that is adapted to the swivel cap (37) for the swivel cap (37) to be inserted. 1) The unlocking block (7) and the oil receiving cylinder (6) are circumferentially linked. The inner wall of the oil receiving cylinder (6) is provided with a first elastic element that forces the unlocking block (7) to move upward under normal conditions. There is an oil flow channel between the outer wall of the unlocking block (7) and the inner circumferential wall of the oil receiving cylinder (6) that connects to the inner cavity of the recovery tank (4). The outer circumferential wall of the unlocking block (7) is coaxially fixedly fitted with a sealing ring plate (72). The outer circumferential wall of the sealing ring plate (72) abuts against the inner circumferential wall of the oil receiving cylinder (6). The bottom wall of the oil receiving cylinder (6) is fixedly provided with an oil flow pipe (61) that connects to the inner cavity of the recovery tank (4). There are multiple oil flow pipes (61) and they are distributed around the axis of the oil receiving cylinder (6). The axial direction of the oil flow pipes (61) is parallel. Along the axial direction of the oil receiving cylinder (6), the sealing ring plate (72) is fixedly provided with a tube (73) that slides axially into the oil flow pipe (61), and the inner cavity of the tube (73) is connected to the inner cavity of the oil flow pipe (61); the inner circumferential wall of the oil flow pipe (61) is fixedly connected with a sealing plate (62) that normally seals its inner cavity. Multiple sealing plates (62) are provided and distributed around the circumference of the oil flow pipe (61). The sealing plates (62) are elastically arranged. When the tube (73) slides toward the recovery tank (4), the end of the tube (73) abuts against the sealing plate (62), thereby forcing the sealing plate (62) to bend and deform, thereby making the oil flow pipe (61) and the tube (73) connected.
2. The waste oil recovery device for dismantling scrapped automobiles according to claim 1, characterized in that: The platform (2) is vertically slidably connected to the support frame (1), and the support frame (1) is provided with a lifting drive mechanism (15) for driving the platform (2) to rise and slide.
3. The waste oil recycling device for dismantling scrapped automobiles according to claim 1, characterized in that: The air injection mechanism (5) includes an air injection main pipe (51), several air injection branch pipes (52) connected to the air injection main pipe (51) and respectively detachably connected to the refueling pipe (31), the exhaust pipe (32), the return oil pipe (34) and the inlet oil pipe (33), and an air injection pump (53) set on the platform (2) to supply air to the air injection main pipe (51).
4. The waste oil recovery device for dismantling scrapped automobiles according to claim 1, characterized in that: The oil receiving cylinder (6) is sleeved on the oil drain pipe (35), and the upper end face of the oil receiving cylinder (6) abuts against the lower end face of the oil tank body (3).
5. The waste oil recovery device for dismantling scrapped automobiles according to claim 1, characterized in that: An installation block (64) is fixedly connected to the bottom inner wall of the oil receiving cylinder (6). The upper end face of the installation block (64) is provided with a vertical insertion groove (641). The inner side wall of the insertion groove (641) is provided with a horizontal sliding groove (642). The installation block (64) is provided with a limiting block (643) that is slidably connected to the sliding groove (642). The lower end face of the unlocking block (7) is fixedly connected to an insertion block (74). The side wall of the insertion block (74) is provided with a limiting block (643) in the horizontal direction. The block (643) is slidably inserted into the limiting groove (75). The sliding groove (642) is provided with a second elastic element that forces the limiting block (643) to slide towards the limiting groove (75) under normal conditions. The end of the limiting block (643) has a guide surface (644) for the lower end face of the insertion block (74) to abut against, so as to force the limiting block (643) to retract into the sliding groove (642). The oil receiving cylinder (6) is provided with an unlocking element that drives the limiting block (643) to retract into the sliding groove (642).
6. The waste oil recovery device for dismantling scrapped automobiles according to claim 5, characterized in that: The mounting block (64) has an unlocking channel connected to the sliding groove (642). The unlocking component is an unlocking rope (646) that passes through the unlocking channel. One end of the unlocking rope (646) is fixedly connected to the limiting block (643), and the other end of the unlocking rope (646) passes through the side wall of the oil receiving cylinder (6). The unlocking rope (646) is fixedly connected to a pull ring (647) placed outside the oil receiving cylinder (6).
7. A waste oil recovery device for dismantling scrapped automobiles according to claim 5, characterized in that: The upper end face of the oil receiving cylinder (6) is provided with a sealing groove, and the oil receiving cylinder (6) is provided with a sealing bladder (65) built into the sealing groove. The mounting block (64) is provided with an adjusting bladder (66) built into the insertion groove (641) and located below the sliding groove (642). An air tube (67) is connected between the sealing bladder (65) and the adjusting bladder (66).