Engine oil recovery auxiliary device for automobile maintenance

Abstract

The invention relates to the technical field of automobile maintenance auxiliary devices, and discloses an automobile maintenance engine oil recovery auxiliary device which comprises a collecting box and a movable cover arranged above the collecting box, an oil inlet longitudinally penetrates through one side of the top end of the movable cover, and a fixed pipe is fixedly connected to the interior of the oil inlet. An adjusting sleeve is rotationally connected to the top end of the fixed pipe, a threaded hole penetrating longitudinally is formed in the top end of the adjusting sleeve, a screw pipe is installed in the threaded hole in a screwed mode, an oil inlet funnel is fixedly installed at the top end of the screw pipe, and an oil draining opening is formed in the position, located on one side of the fixed pipe, of the top end of the movable cover. The problems that a bolt attempt piece is prone to oxidation rusting when exposed in air and difficult to disassemble in the later period, meanwhile, engine oil is prone to dripping on a bolt, and certain corrosion is caused to the bolt are solved, and through the arranged structure, it can be guaranteed that the oil draining screen plate is stably installed, and meanwhile rapid disassembly is facilitated.

Description

Technical Field

[0001] This invention relates to the field of automotive maintenance auxiliary devices, specifically an auxiliary device for oil recovery in automotive maintenance. Background Technology

[0002] Engine oil, also known as motor oil or engine lubricant, is a type of substance that is enhanced with additives to base oil. It primarily contains anti-wear additives, detergents, dispersants, and multi-grade viscosity index improvers. When servicing a car engine, it is necessary to remove the engine oil, thus requiring the use of an oil collection device.

[0003] An auxiliary device for oil recovery in automotive repair is a device used in the automotive repair process to recover waste oil discharged from a vehicle. It is widely used in the field of automotive repair.

[0004] Regarding the existing patent CN202010872236.X, which discloses an auxiliary device for oil recovery in automotive repair, the device has a magnet installed inside the rotating shaft to attract the oil drain plug to the inside of the sleeve, preventing it from falling off. An oil draining mesh prevents the drain plug from falling into the collection bucket, improving usability and reducing limitations. The mesh also facilitates placing oil-soaked parts on it, allowing the oil to drip into the collection bucket and preventing it from dripping onto the ground, thus keeping the surrounding area clean. This technology effectively filters waste engine oil, facilitating its recycling and preventing the spread of waste oil. When engine oil is drained, it sprays everywhere, making it easier to store repair parts, improving the cleanliness of the work area, enhancing its safety and practicality, and reducing its limitations. Automotive oil recovery auxiliary devices utilize a specially designed bolt-operated joint to adapt to the drain bolt positions of different vehicle brands, while also solving the technical problem of difficult-to-retrieve fallen bolts. However, the oil drain screen inside the device is fixed to the drain outlet with bolts, and the bolts are exposed to air, making them prone to oxidation and rust, and difficult to disassemble later. Additionally, engine oil easily drips onto the bolts, causing corrosion. Therefore, this does not meet current needs. To address this, we propose an automotive oil recovery auxiliary device. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary device for oil recovery in automotive repair, in order to solve the problems mentioned in the background art, such as the oil drain screen plate in the device being fixedly installed at the oil drain port by bolts, the bolts being exposed to air which easily leads to oxidation and rust, and being difficult to disassemble later, while oil easily drips onto the bolts, causing certain corrosion to the bolts.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for oil recovery in automotive repair, comprising a collection box and a movable cover disposed above the collection box. The movable cover has a longitudinally penetrating oil inlet on one side of its top end, and a fixed pipe is fixedly connected inside the oil inlet. An adjusting sleeve is rotatably connected to the top end of the fixed pipe. The adjusting sleeve has a longitudinally penetrating threaded hole at its top end, and a threaded tube is screwed into the threaded hole. An oil inlet funnel is fixedly installed at the top end of the threaded tube. An oil drain outlet is opened at the top end of the movable cover, located on one side of the fixed pipe, and an oil drain groove is fixedly installed on the outer circumference of the oil drain outlet. Mounting rings are provided on the inner circumference walls of both the oil inlet funnel and the oil drain groove. A mounting frame is provided on the upper end face of the mounting ring, and a fixing member is provided between the mounting frame and the mounting ring. An oil drain mesh plate is fixedly welded to the inner circumference wall of the mounting frame. The fixing member is used to fix and install the oil drain mesh plate for easy disassembly. A sealing member is provided between the collection box and the movable cover to enhance the sealing effect at their connection.

[0007] The fixing component includes a plug-in block fixedly installed at the bottom of the mounting frame, and plug-in blocks are respectively provided on opposite sides of the bottom of the mounting frame. The upper end face of the mounting ring is provided with a plug-in groove for the plug-in block to be inserted and mated. Hidden grooves are provided on both sides of the plug-in block. The hidden grooves extend along the thickness direction of the plug-in block. A stop block is slidably provided in the hidden groove. A compression elastic element is provided between the stop block and the bottom of the hidden groove. A snap-fit ​​block is fixedly installed on one end face of the stop block. A positioning hole adapted to the snap-fit ​​block is provided on the inner side wall of the plug-in groove. The snap-fit ​​block is positioned in the positioning hole. A moving element is provided between the stop block and the groove wall of the hidden groove to facilitate the stable movement of the stop block.

[0008] Preferably, a placement ring is fixedly welded to the inner circumference of the collection box near its end, and a filter assembly is provided on the inner wall of the collection box, the filter assembly including a filter cylinder and filter holes formed on the filter cylinder.

[0009] Preferably, the upper end of the filter cylinder is provided with a suspension ring, the top of the suspension ring and the placement ring are attached, a lifting rod is provided near the upper end of the filter cylinder, and the filter hole is a round hole or an elongated hole.

[0010] Preferably, a handle is provided on each side of the upper end face of the mounting frame, and the handle is also provided with anti-slip texture.

[0011] Preferably, the bottom of the filter cartridge is connected to a receiving cylinder, and a hydraulic push rod is provided in the receiving cylinder. The piston rod of the hydraulic push rod abuts against the top of the receiving cylinder, and the bottom end of the hydraulic push rod is fixedly installed on the inner bottom wall of the collection box. The hydraulic push rod is connected to the hydraulic system through a pipe passing through the collection box.

[0012] Preferably, the sealing element includes a fixed base fixedly installed on the inner side wall of the collection box and a movable frame disposed above the fixed base. The fixed base has a cavity, and a useful spring is fixedly installed in the cavity. An elastic frame is fixedly installed on the lower surface of the movable frame, and one end of the elastic frame is disposed in the cavity. The bottom end of the elastic frame is fixedly connected to the spring. A first sealing gasket and a second sealing gasket are disposed on the movable frame.

[0013] Preferably, the spring is fixedly connected to the elastic frame, the first sealing gasket and the second sealing gasket are fixedly connected together, and the bottom end of the movable cover is provided with a slot for the second sealing gasket to engage.

[0014] Preferably, the movable component includes a slide rod fixedly installed on both sides of the abutment block, and the inner side wall of the hidden groove is provided with a slide groove adapted to the slide rod, and the slide rod is slidably connected in the slide groove.

[0015] Preferably, the compression elastic element is configured as a tension spring, one end of which is fixedly installed at the bottom of the hidden groove, and the other end is fixedly installed on the side of the abutment block away from the snap-fit ​​block.

[0016] Preferably, the snap-fit ​​block has an inclined surface on the side opposite to the hidden groove, and the inclined surface of the snap-fit ​​block is opposite to the insertion groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention, firstly, uses a suspension ring to suspend the filter cylinder in the collection tank. The filter cylinder has filter holes, allowing filtered water to quickly enter the collection tank. A lifting rod is provided for the operator to hold, enabling the filter cylinder to be lifted as a whole. The round tube structure of the lifting rod makes it more comfortable to hold, and debris can slide down the smooth side wall, preventing debris from accumulating on the lifting rod. Then, the end of the movable cover is pressed into the collection tank and contacts the first sealing gasket in the sealing element. As the movable cover is pressed down and fixed, a groove on one end of the movable cover engages with the second sealing gasket. The movable cover, along with the first and second sealing gaskets, moves towards the fixed seat, thereby causing the movable frame and elastic frame to compress the spring in the cavity. When the movable cover and the collection tank are in contact... After the collection boxes are completely fixed together, the spring has an outward elastic force, which makes the first sealing gasket tightly contact and squeeze the end of the movable cover, thereby ensuring the sealing effect after the movable cover is connected. At the same time, it works with the slot and the second sealing gasket to further ensure the sealing effect and ensure the leak-proof performance of the collection box. When the filter cartridge needs to be disassembled and cleaned, apply upward force to disengage the bottom end of the movable cover from the collection box. The piston rod of the hydraulic push rod abuts against the top of the receiving cylinder. The hydraulic push rod is connected to the hydraulic system through a pipe through the collection box. When the filter cartridge needs to be removed, activate the hydraulic push rod to easily lift the filter cartridge. The guide cylinder can guide the filter cartridge upward to prevent the filter cartridge from tilting or tipping over during the ascent, and at the same time facilitate the quick installation and disassembly of the filter cartridge.

[0019] 2. This invention first applies upward force by pulling the handle. At this time, the inclined surface of the snap-fit ​​block abuts against the groove wall of the positioning hole. As the plug slowly disengages from the plug groove, the groove wall of the positioning hole applies pressure to the snap-fit ​​block, causing it to move towards the bottom of the hidden groove. When the snap-fit ​​block is fully inside the hidden groove, the plug completely disengages from the plug groove, allowing the oil drain screen to be disassembled. When it is necessary to install the oil drain screen in the mounting frame, manually press the snap-fit ​​block inward to fully enter the hidden groove. At this time, the plug of the mounting frame can be inserted into the plug groove of the mounting ring. As the plug slowly inserts into the plug groove, the groove wall of the plug groove applies pressure to the snap-fit ​​block, causing it to be located in the hidden groove. When the plug is successfully fully inserted into the plug groove, the snap-fit ​​block pops out of the hidden groove under the action of the tension spring and is positioned in the positioning hole on the inner side wall of the plug groove. This allows the oil drain screen to be installed stably and disassembled quickly. Attached Figure Description

[0020] Figure 1 This is a front view of the entire invention;

[0021] Figure 2 This is a partial cross-sectional view of the entire invention;

[0022] Figure 3This is a side view of the entire invention;

[0023] Figure 4 This is a partial cross-sectional view of the connection between the collection box and the movable cover of the present invention;

[0024] Figure 5 This is a partial structural schematic diagram of the sealing element of the present invention;

[0025] Figure 6 For the present invention Figure 3 A magnified partial structural diagram at point A in the middle;

[0026] Figure 7 For the present invention Figure 6 A magnified partial structural diagram at point A in the middle.

[0027] In the diagram: 1. Collection box; 101. Placement ring; 2. Movable cover; 201. Oil drain port; 202. Slot; 3. Hydraulic push rod; 4. Receiving cylinder; 5. Filter assembly; 51. Filter cylinder; 52. Filter hole; 53. Suspension ring; 54. Lifting rod; 6. Fixing pipe; 7. Screw pipe; 8. Oil inlet funnel; 9. Fixing component; 901. Insertion block; 902. Positioning hole; 903. Slotting block; 9031. Inclined surface; 904. Hidden groove; 905. Tension spring; 906. Slide groove; 907. Abutment block; 908. Slide rod; 10. Oil drain groove; 11. Seal; 1101. Fixed seat; 1102. Cavity; 1103. Spring; 1104. Movable frame; 1105. Elastic frame; 1106. First sealing gasket; 1107. Second sealing gasket; 12. Mounting frame; 13. Base; 14. Handle; 15. Oil drain mesh plate; 16. Mounting ring; 17. Insertion groove. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Please see Figures 1 to 7This invention provides an embodiment of an auxiliary device for oil recovery in automotive repair, comprising a collection box 1 and a movable cover 2 disposed above the collection box 1. A base 13 is fixedly installed at the bottom end of the collection box 1. An oil inlet is longitudinally penetrating one side of the top end of the movable cover 2, and a fixed pipe 6 is fixedly connected inside the oil inlet. An adjusting sleeve is rotatably connected to the top end of the fixed pipe 6. The top end of the adjusting sleeve is provided with a longitudinally penetrating threaded hole, and a threaded tube 7 is screwed into the threaded hole. An oil inlet funnel 8 is fixedly installed at the top end of the threaded tube 7. The top end of the movable cover 2 is located on one side of the fixed pipe 6. The oil drain outlet 201 is provided on the side, and an oil drain trough 10 is fixedly installed on the outer circumference of the oil drain outlet 201. An installation ring 16 is provided on the inner circumference of both the oil inlet funnel 8 and the oil drain trough 10. An installation frame 12 is provided on the upper end face of the installation ring 16, and a fixing member 9 is provided between the installation frame 12 and the installation ring 16. An oil drain mesh plate 15 is fixedly welded to the inner circumference of the installation frame 12. The fixing member 9 is used to fix the oil drain mesh plate 15 for easy disassembly. A sealing member 11 is provided between the collection box 1 and the movable cover 2 to increase the sealing effect at the connection between the two.

[0030] The fastener 9 includes a plug-in block 901 fixedly installed at the bottom of the mounting frame 12. Plug-in blocks 901 are respectively provided on opposite sides of the bottom of the mounting frame 12. The upper end face of the mounting ring 16 is provided with a plug-in groove 17 for the plug-in blocks 901 to be plugged in. Hidden grooves 904 are provided on both sides of the plug-in block 901. The hidden grooves 904 extend along the thickness direction of the plug-in block 901. A stop block 907 is slidably provided in the hidden groove 904. A compression elastic element is provided between the stop block 907 and the bottom of the hidden groove 904. A snap-fit ​​block 903 is fixedly installed on one end face of the stop block 907. A positioning hole 902 adapted to the snap-fit ​​block 903 is provided on the inner side wall of the plug-in groove 17. The snap-fit ​​block 903 is positioned in the positioning hole 902. A moving element is provided between the stop block 907 and the groove wall of the hidden groove 904 to facilitate the stable movement of the stop block 907.

[0031] A placement ring 101 is fixedly welded to the inner circumference of the collection box 1 near its end. A filter assembly 5 is provided on the inner wall of the collection box 1. The filter assembly 5 includes a filter cylinder 51 and filter holes 52 opened on the filter cylinder 51.

[0032] A suspension ring 53 is provided at the upper end of the filter cylinder 51. The suspension ring 53 and the top of the placement ring 101 are attached. A lifting rod 54 is provided near the upper end of the filter cylinder 51. The filter hole 52 is set as a round hole or a long hole.

[0033] Handles 14 are respectively provided on opposite sides of the upper surface of the mounting frame 12, and the handles 14 are also provided with anti-slip texture. By adopting the above technical solution, the anti-slip texture on the handles 14 increases the friction when gripping the handles 14, preventing easy slippage.

[0034] The bottom of the filter cartridge 51 is connected to the receiving cylinder 4, and a hydraulic push rod 3 is installed in the receiving cylinder 4. The piston rod of the hydraulic push rod 3 abuts against the top of the receiving cylinder 4, and the bottom end of the hydraulic push rod 3 is fixedly installed on the inner bottom wall of the collection box 1. A guide cylinder is installed on the inner bottom wall of the collection box 1. The outer wall of the guide cylinder is in contact with the inner wall of the receiving cylinder 4, and the inner wall of the guide cylinder is in contact with the outer wall of the hydraulic push rod 3. The hydraulic push rod 3 is connected to the hydraulic system through the collection box 1 via a pipe.

[0035] The sealing element 11 includes a fixed base 1101 fixedly installed on the inner side wall of the collection box 1 and a movable frame 1104 disposed above the fixed base 1101. The fixed base 1101 has a cavity 1102, and a useful spring 1103 is fixedly installed in the cavity 1102. An elastic frame 1105 is fixedly installed on the lower surface of the movable frame 1104, and one end of the elastic frame 1105 is disposed in the cavity 1102. The bottom end of the elastic frame 1105 is fixedly connected to the spring 1103. A first sealing gasket 1106 and a second sealing gasket 1107 are disposed on the movable frame 1104.

[0036] Spring 1103 is fixedly connected to elastic frame 1105, and first sealing gasket 1106 and second sealing gasket 1107 are fixedly connected together. A slot 202 is provided at the bottom of the movable cover 2 for the second sealing gasket 1107 to engage. By adopting the above technical solution, the slot 202 at one end of the movable cover 2 engages with the second sealing gasket 1107, ensuring the sealing effect after the movable cover 2 is connected. Simultaneously, the slot 202, in conjunction with the second sealing gasket 1107, further ensures the sealing effect.

[0037] The movable component includes a slide rod 908 fixedly installed on both sides of the abutment block 907. The inner side wall of the hidden groove 904 is provided with a slide groove 906 adapted to the slide rod 908, and the slide rod 908 is slidably connected in the slide groove 906.

[0038] The compression elastic element is set as a tension spring 905. One end of the tension spring 905 is fixedly installed at the bottom of the hidden groove 904, and the other end is fixedly installed on the side of the abutment block 907 away from the snap-fit ​​block 903.

[0039] The snap-fit ​​block 903 has a beveled surface 9031 on the side opposite to the concealed groove 904, and the beveled surface 9031 of the snap-fit ​​block 903 is positioned opposite to the insertion groove 17. By adopting the above technical solution, the beveled surface of the snap-fit ​​block 903 abuts against the inner wall of the positioning hole 902. When the insertion block 901 disengages from the insertion groove 17, the inner wall of the positioning hole 902 applies pressure to the beveled surface of the snap-fit ​​block 903, causing the snap-fit ​​block 903 to move into the concealed groove 904. Thus, it is not necessary to manually press the snap-fit ​​block 903 when the insertion block 901 disengages from the insertion groove 17.

[0040] In use, the filter cylinder 51 is first suspended in the collection box 1 using the suspension ring 53. The filter cylinder 51 has a filter hole 52, through which the filtered water quickly enters the collection box 1. The lifting rod 54 is for the operator to hold, so as to lift the filter cylinder 51 as a whole. The round tube structure of the lifting rod 54 makes the grip more comfortable, and at the same time, the debris can slide down the smooth side wall, avoiding the accumulation of debris on the lifting rod 54. Then, the end of the movable cover 2 is squeezed into the collection box 1 and contacts the first sealing gasket 1106 in the sealing member 11. As the movable cover 2 is pressed down and fixed, the slot 202 at one end of the movable cover 2 engages with the second sealing gasket 1107. The movable cover 2, along with the first sealing gasket 1106 and the second sealing gasket 1107, moves towards the fixed seat 1101, thereby causing the movable frame 1104 and the elastic frame 1105 to compress the spring in the cavity 1102. 1103. After the movable cover 2 and the collection box 1 are completely fixed together, the spring 1103 has an outward elastic force, which makes the first sealing gasket 1106 tightly contact and squeeze the end of the movable cover 2, thereby ensuring the sealing effect after the movable cover 2 is connected. At the same time, it works with the slot 202 and the second sealing gasket 1107 to further ensure the sealing effect and ensure the leak-proof performance of the collection box 1. When the filter cartridge 51 needs to be disassembled and cleaned, an upward force is applied to detach the bottom end of the movable cover 2 from the collection box 1. The piston rod of the hydraulic push rod 3 abuts against the top of the receiving cylinder 4. The hydraulic push rod 3 is connected to the hydraulic system through the pipe through the collection box 1. When the filter cartridge 51 needs to be removed, the hydraulic push rod 3 is activated, which can easily lift the filter cartridge 51. The guide cylinder can guide the filter cartridge 51 to rise, preventing the filter cartridge 51 from tilting or tipping over during the rising process, and at the same time facilitating the quick installation and disassembly of the filter cartridge 51.

[0041] First, pull the handle 14 upwards. At this time, the inclined surface 9031 of the locking block 903 first abuts against the groove wall of the positioning hole 902. While the insertion block 901 slowly disengages from the insertion groove 17, the groove wall of the positioning hole 902 applies pressure to the locking block 903, causing the locking block 903 to move towards the bottom of the hidden groove 904. When the locking block 903 is completely located in the hidden groove 904, the insertion block 901 completely disengages from the insertion groove 17, and the oil drain screen 15 can be disassembled. When it is necessary to install the oil drain screen 15 in the mounting frame 12, manually press the locking block inwards. When 903 is fully inserted into the hidden groove 904, the plug block 901 of the mounting frame 12 can be inserted into the plug groove 17 of the mounting ring 16. As the plug block 901 is slowly inserted into the plug groove 17, the groove wall of the plug groove 17 applies pressure to the locking block 903, so that the locking block 903 is located in the hidden groove 904. When the plug block 901 is successfully fully inserted into the plug groove 17, the locking block 903 pops out from the hidden groove 904 under the action of the extension spring 905 and is positioned in the positioning hole 902 on the inner side wall of the plug groove 17, thereby making the oil draining mesh plate 15 installed stably.

Claims

1. An auxiliary device for oil recovery in automobile repair, comprising a collection box (1) and a movable cover (2) disposed above the collection box (1), wherein a base (13) is fixedly installed at the bottom end of the collection box (1), and an oil inlet is longitudinally penetrating on one side of the top end of the movable cover (2), and a fixed pipe (6) is fixedly connected inside the oil inlet, an adjusting sleeve is rotatably connected to the top end of the fixed pipe (6), and a longitudinally penetrating threaded hole is provided at the top end of the adjusting sleeve, and a threaded tube (7) is screwed into the threaded hole, and an oil inlet funnel (8) is fixedly installed at the top end of the threaded tube (7), characterized in that: The top of the movable cover (2) and on one side of the fixed pipe (6) is provided with an oil drain port (201), and an oil drain trough (10) is fixedly installed on the outer circumference of the oil drain port (201). The inner circumference of the oil inlet funnel (8) and the oil drain trough (10) are provided with mounting rings (16). The upper end face of the mounting ring (16) is provided with a mounting frame (12), and a fixing member (9) is provided between the mounting frame (12) and the mounting ring (16). An oil drain mesh plate (15) is fixedly welded to the inner circumference of the mounting frame (12). The fixing member (9) is used to fix the oil drain mesh plate (15) for easy disassembly. A sealing member (11) is provided between the collection box (1) and the movable cover (2) to increase the sealing effect at the connection between the two. The fastener (9) includes a plug-in block (901) fixedly installed at the bottom of the mounting frame (12), and plug-in blocks (901) are respectively provided on opposite sides of the bottom of the mounting frame (12). The upper surface of the mounting ring (16) is provided with a plug-in groove (17) for the plug-in block (901) to be inserted into. Hidden grooves (904) are provided on both sides of the plug-in block (901), extending along the thickness direction of the plug-in block (901). A sliding groove (904) is provided within the hidden groove (904). A stop block (907) is provided between the stop block (907) and the bottom of the hidden groove (904). A snap-fit ​​block (903) is fixedly installed on one end face of the stop block (907). A positioning hole (902) adapted to the snap-fit ​​block (903) is opened on the inner side wall of the insertion groove (17). The snap-fit ​​block (903) is positioned in the positioning hole (902). A moving part is provided between the stop block (907) and the groove wall of the hidden groove (904) to facilitate the stable movement of the stop block (907).

2. The auxiliary device for oil recovery in automobile repair according to claim 1, characterized in that: The collection box (1) has a placement ring (101) fixedly welded to the inner circumference of the collection box (1) near the end. The inner wall of the collection box (1) is provided with a filter assembly (5), which includes a filter cylinder (51) and filter holes (52) opened on the filter cylinder (51).

3. The auxiliary device for oil recovery in automobile repair according to claim 1, characterized in that: The filter cylinder (51) is provided with a suspension ring (53) at the upper end, and the top of the suspension ring (53) and the placement ring (101) are attached together. The filter cylinder (51) is provided with a lifting rod (54) near the upper end, and the filter hole (52) is provided as a round hole or a long hole.

4. The auxiliary device for oil recovery in automobile repair according to claim 1, characterized in that: The mounting frame (12) has handles (14) on opposite sides of its upper surface, and the handles (14) are also provided with anti-slip texture.

5. The auxiliary device for oil recovery in automobile repair according to claim 1, characterized in that: The bottom of the filter cylinder (51) is connected to a receiving cylinder (4), and a hydraulic push rod (3) is provided in the receiving cylinder (4). The piston rod of the hydraulic push rod (3) abuts against the top of the receiving cylinder (4), and the bottom end of the hydraulic push rod (3) is fixedly installed on the inner bottom wall of the collection box (1). A guide cylinder is provided on the inner bottom wall of the collection box (1). The outer wall of the guide cylinder is in contact with the inner wall of the receiving cylinder (4), and the inner wall of the guide cylinder is in contact with the outer wall of the hydraulic push rod (3). The hydraulic push rod (3) is connected to the hydraulic system through the collection box (1) via a pipe.

6. The auxiliary device for oil recovery in automobile repair according to claim 1, characterized in that: The sealing element (11) includes a fixed base (1101) fixedly installed on the inner side wall of the collection box (1) and a movable frame (1104) set above the fixed base (1101). The fixed base (1101) has a cavity (1102) and a useful spring (1103) fixedly installed in the cavity (1102). An elastic frame (1105) is fixedly installed on the lower surface of the movable frame (1104), and one end of the elastic frame (1105) is set in the cavity (1102). The bottom end of the elastic frame (1105) is fixedly connected to the spring (1103). A first sealing gasket (1106) and a second sealing gasket (1107) are provided on the movable frame (1104).

7. The auxiliary device for oil recovery in automobile repair according to claim 6, characterized in that: The spring (1103) is fixedly connected to the elastic frame (1105), the first sealing gasket (1106) and the second sealing gasket (1107) are fixedly connected together, and the bottom end of the movable cover (2) is provided with a slot (202) for the second sealing gasket (1107) to be engaged.

8. The auxiliary device for oil recovery in automobile repair according to claim 1, characterized in that: The movable component includes a slide rod (908) fixedly installed on both sides of the abutment block (907). The inner wall of the hidden groove (904) is provided with a slide groove (906) adapted to the slide rod (908). The slide rod (908) is slidably connected in the slide groove (906).

9. The auxiliary device for oil recovery in automobile repair according to claim 1, characterized in that: The compression elastic element is configured as a tension spring (905), one end of which is fixedly installed at the bottom of the hidden groove (904), and the other end is fixedly installed on the side of the abutment block (907) away from the snap-fit ​​block (903).

10. An auxiliary device for oil recovery in automobile repair according to claim 1, characterized in that: The snap-fit ​​block (903) has a bevel (9031) on the side opposite to the hidden groove (904), and the bevel (9031) of the snap-fit ​​block (903) is opposite to the insertion groove (17).

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