Oil pan oil drainage screw wrench capable of preventing engine oil from leaking out
The design uses a motor-driven bevel gear rotating sleeve to loosen the screw and guide the oil into the collection bucket. Combined with a rubber ring and a rubber telescopic sleeve to block the inflow of oil, it solves the problem of oil leakage during the replacement of the traditional oil pan drain screw and realizes safe and efficient oil collection.
Patent Information
- Application Number
- CN202422711026.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-07
AI Technical Summary
During the traditional oil pan drain screw replacement process, oil leakage is difficult to control, polluting the environment and increasing the difficulty of cleaning.
An oil pan drain screw wrench is designed to prevent oil leakage. A motor is used to drive a bevel gear rotating sleeve to loosen the screw. The oil flows into the mechanical cylinder and is introduced into the collection bucket through the oil drain pipe. A rubber ring and a rubber telescopic sleeve are combined to block and guide the oil flow to prevent splashing.
Effectively prevent oil leakage, simplify oil draining operations, improve safety and cleanliness, and reduce environmental pollution.
Smart Images

Figure CN223326271U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile maintenance, in particular to an oil pan drain screw wrench for preventing engine oil from leaking. Background Art
[0002] During automobile repair and maintenance, replacing the oil pan drain screw and draining the engine oil are common operations. However, the traditional method of replacing the oil drain screw has the problem of oil leakage, which not only pollutes the working environment but also poses a threat to the operator's health.
[0003] The traditional method of replacing the oil drain screw is usually to rotate the screw manually or with a tool to unscrew it from the oil pan. During this process, due to the failure of the seal between the screw and the oil pan, engine oil often sprays out of the screw hole, causing leakage. This leakage is not only difficult to control, but also easily contaminates the ground and tools, increasing the difficulty and cost of cleaning work. Therefore, an oil pan drain screw wrench that prevents oil leakage is proposed to solve the above problem. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides an oil pan drain screw wrench for preventing engine oil from leaking, so as to overcome the deficiencies in the prior art.
[0005] The technical solution of the utility model for solving the above technical problems is as follows: an oil pan drain screw wrench for preventing engine oil leakage comprises an oil drain pipe connected to an external collection barrel, and an oil pan drain screw disassembly structure is provided on the top of the oil drain pipe.
[0006] The oil pan drain screw disassembly structure includes a mechanical cylinder fixedly installed on the top of the oil drain pipe, the top of the mechanical cylinder is an open structure and is connected to the oil drain pipe, two cross brackets are fixedly installed inside the mechanical cylinder, hollow tubes are rotatably installed inside the two cross brackets, a sleeve is fixedly installed on the top of the hollow tube, a No. 1 bevel gear located between the two cross brackets is installed on the outside of the hollow tube, a rectangular shell is fixedly installed on the outside of the mechanical cylinder, a motor that passes through the inside of the mechanical cylinder is fixedly installed on the left side of the rectangular shell, the output shaft of the motor is rotatably installed inside the rectangular shell and the side wall of the mechanical cylinder, and a No. 2 bevel gear is installed on the output end of the motor, and the No. 2 bevel gear is engaged with the top of the No. 1 bevel gear.
[0007] The beneficial effects of the utility model are as follows: the bevel gear is driven to rotate by a motor, which drives the sleeve to rotate to loosen the oil drain screw. After the screw is loosened, the disassembly structure slowly descends, and the engine oil flows into the mechanical cylinder and is finally introduced into the collection bucket through the oil drain pipe to prevent the engine oil from leaking. At the same time, the rubber ring and the rubber expansion sleeve are used to wrap the connection between the sleeve and the screw to effectively block and guide the engine oil to flow into the mechanical cylinder to prevent the engine oil from splashing. When the disassembly structure descends, the return spring expands to make the rubber ring rise and pull the rubber expansion sleeve to expand, ensuring that it fits with the bottom of the oil pan, further improving the anti-leakage effect. This design simplifies the oil draining operation and improves safety and cleanliness.
[0008] On the basis of the above technical solution, the present invention can also be improved as follows.
[0009] Furthermore, a rubber telescopic sleeve is fixedly installed on the top of the mechanical cylinder, a rubber ring is fixedly installed on the top of the rubber telescopic sleeve, four support rods located on the outside of the rubber telescopic sleeve are fixedly installed on the bottom of the rubber ring, and hollow blocks corresponding to the four support rods are fixedly installed on the outside of the mechanical cylinder. The four support rods are respectively slidably installed inside the four hollow blocks, and the tops of the four hollow blocks are fixedly installed with return springs sleeved on the outside of the support rods.
[0010] Furthermore, the bottoms of the four support rods are fixedly mounted with limit blocks, and the four limit blocks are respectively located at the bottoms of the four hollow blocks.
[0011] Furthermore, a grip is fixedly mounted on the right side of the rectangular housing, and a handle is fixedly mounted on the left side, and the handle is located at the bottom of the motor.
[0012] Furthermore, a push switch is fixedly mounted on the bottom of the handle, and the push switch is electrically connected to the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;
[0014] Figure 2 Another perspective diagram of the overall structure of the utility model Figure 2 ;
[0015] Figure 3 This is a schematic diagram of the explosion structure of the utility model Figure 3 ;
[0016] Figure 4 The utility model is a top view of the sleeve and hollow tube structure connection Figure 4 .
[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0018] 1. Oil drain pipe; 2. Mechanical cylinder; 3. Cross bracket; 4. Hollow tube; 5. Sleeve; 6. Bevel gear No. 1; 7. Rectangular housing; 8. Motor; 9. Bevel gear No. 2; 10. Rubber expansion sleeve; 11. Rubber ring; 12. Support rod; 13. Hollow block; 14. Return spring; 15. Limit block; 16. Grip; 17. Handle; 18. Push switch. DETAILED DESCRIPTION
[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0020] Example 1, as Figures 1 to 4 As shown, an oil pan drain screw wrench for preventing engine oil leakage comprises an oil drain pipe 1 connected to an external collection barrel, and an oil pan drain screw disassembly structure is provided on the top of the oil drain pipe 1.
[0021] The oil pan drain screw disassembly structure includes a mechanical cylinder 2 fixedly installed on the top of the oil drain pipe 1. The top of the mechanical cylinder 2 is an open structure and is connected to the oil drain pipe 1. Two cross brackets 3 are fixedly installed inside the mechanical cylinder 2. A hollow tube 4 is rotatably installed inside the two cross brackets 3. A sleeve 5 that passes through the top of the mechanical cylinder 2 is fixedly installed on the top of the hollow tube 4. A No. 1 bevel gear 6 located between the two cross brackets 3 is installed on the outside of the hollow tube 4. A rectangular shell 7 is fixedly installed on the outside of the mechanical cylinder 2. A motor 8 that passes through the inside of the mechanical cylinder 2 is fixedly installed on the left side of the rectangular shell 7. The output shaft of the motor 8 is rotatably installed inside the rectangular shell 7 and the side wall of the mechanical cylinder 2. The output end of the motor 8 is installed with a No. 2 bevel gear 9, which engages with the top of the No. 1 bevel gear 6.
[0022] When in use, the sleeve 5 is put on the outside of the oil pan drain screw through the two cross brackets 3, and then the motor 8 is controlled to start. After the motor 8 is started, it drives the No. 2 bevel gear 9 and the No. 1 bevel gear 6 to rotate, and the No. 1 bevel gear 6 drives the hollow tube 4 and the sleeve 5 to rotate. The sleeve 5 can loosen the oil pan drain screw when it rotates. After the oil pan drain screw is loosened, the oil pan drain screw disassembly structure is controlled to slowly descend. At this time, the engine oil flows into the inside of the mechanical cylinder 2, and finally is guided into the external collection bucket from the oil drain pipe 1. At this time, the engine oil will not spill to the outside.
[0023] Example 2, as Figures 1 to 3 As shown, this embodiment is a further improvement based on Example 1, and its details are as follows:
[0024] A rubber telescopic sleeve 10 is fixedly installed on the top of the mechanical cylinder 2, a rubber ring 11 is fixedly installed on the top of the rubber telescopic sleeve 10, and four support rods 12 located on the outside of the rubber telescopic sleeve 10 are fixedly installed on the bottom of the rubber ring 11. Hollow blocks 13 corresponding to the four support rods 12 are fixedly installed on the outside of the mechanical cylinder 2. The four support rods 12 are respectively slidably installed inside the four hollow blocks 13, and the tops of the four hollow blocks 13 are fixedly installed with return springs 14 sleeved on the outside of the support rods 12.
[0025] The four hollow blocks 13 are used to limit the four support rods 12 to the outside of the rubber telescopic sleeve 10 for lifting and lowering. The four support rods 12 support the rubber ring 11 on the top of the mechanical cylinder 2 for lifting and lowering. After the sleeve 5 is sleeved on the outside of the oil pan drain screw, the rubber ring 11 and the rubber telescopic sleeve 10 just wrap the connection between the sleeve 5 and the oil pan drain screw. At this time, the engine oil sprayed out from the bottom of the oil pan can be blocked and guided to the inside of the mechanical cylinder 2, thereby effectively preventing the engine oil from splashing out. When the oil pan drain screw disassembly structure is controlled to descend, the four return springs 14 can squeeze the rubber ring 11 to lift and pull the rubber telescopic sleeve 10 to expand, so that it can fit normally with the bottom of the oil pan.
[0026] Example 3, as Figure 1 As shown, this embodiment is a further improvement based on embodiment 1-2, and its details are as follows:
[0027] Limit blocks 15 are fixedly mounted on the bottoms of the four support rods 12 , and the four limit blocks 15 are respectively located at the bottoms of the four hollow blocks 13 .
[0028] The bottom of the support rod 12 is restricted by the installed limiting block 15 to prevent the support rod 12 from escaping from the interior of the hollow block 13 .
[0029] Example 4, as Figures 1 to 3 As shown, this embodiment is a further improvement based on Example 1, and its details are as follows:
[0030] A grip 16 is fixedly mounted on the right side of the rectangular housing 7 , and a handle 17 is fixedly mounted on the left side. The handle 17 is located at the bottom of the motor 8 .
[0031] The right hand holds the grip 16 and the left hand holds the handle 17 to facilitate operation of the structure.
[0032] Example 5, as Figure 3 As shown, this embodiment is a further improvement based on embodiments 1-4, and its details are as follows:
[0033] A push switch 18 is fixedly mounted on the bottom of the handle 16 , and the push switch 18 is electrically connected to the motor 8 .
[0034] Pressing the push switch 18 facilitates controlling the operating state of the motor 8 .
[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. An oil pan drain screw wrench for preventing engine oil from leaking out, comprising an oil drain pipe (1) connected to an external collection barrel, characterized in that: The top of the oil drain pipe (1) is provided with an oil pan drain screw disassembly structure; The oil pan drain screw disassembly structure includes a mechanical cylinder (2) fixedly mounted on the top of the oil drain pipe (1), the top of the mechanical cylinder (2) is an open structure and is connected to the oil drain pipe (1), two cross brackets (3) are fixedly mounted inside the mechanical cylinder (2), a hollow tube (4) is rotatably mounted inside the two cross brackets (3), a sleeve (5) that passes through the top of the mechanical cylinder (2) is fixedly mounted on the top of the hollow tube (4), a No. 1 bevel gear (6) located between the two cross brackets (3) is mounted on the outside of the hollow tube (4), a rectangular shell (7) is fixedly mounted on the outside of the mechanical cylinder (2), a motor (8) that passes through the inside of the mechanical cylinder (2) is fixedly mounted on the left side of the rectangular shell (7), the output shaft of the motor (8) is rotatably mounted inside the rectangular shell (7) and the side wall of the mechanical cylinder (2), and a No. 2 bevel gear (9) is mounted on the output end of the motor (8), and the No. 2 bevel gear (9) is engaged with the top of the No. 1 bevel gear (6).
2. The oil pan drain screw wrench for preventing engine oil leakage according to claim 1, characterized in that: A rubber telescopic sleeve (10) is fixedly mounted on the top of the mechanical cylinder (2), a rubber ring (11) is fixedly mounted on the top of the rubber telescopic sleeve (10), four support rods (12) located outside the rubber telescopic sleeve (10) are fixedly mounted on the bottom of the rubber ring (11), hollow blocks (13) corresponding to the four support rods (12) are fixedly mounted on the outside of the mechanical cylinder (2), the four support rods (12) are respectively slidably mounted inside the four hollow blocks (13), and the tops of the four hollow blocks (13) are fixedly mounted with return springs (14) sleeved on the outside of the support rods (12).
3. The oil pan drain screw wrench for preventing engine oil leakage according to claim 2, characterized in that: The bottoms of the four support rods (12) are all fixedly mounted with limit blocks (15), and the four limit blocks (15) are respectively located at the bottoms of the four hollow blocks (13).
4. The oil pan drain screw wrench for preventing engine oil leakage according to claim 1, characterized in that: A grip (16) is fixedly mounted on the right side of the rectangular housing (7), and a handle (17) is fixedly mounted on the left side. The handle (17) is located at the bottom of the motor (8).
5. The oil pan drain screw wrench for preventing engine oil leakage according to claim 4, characterized in that: A push switch (18) is fixedly mounted on the bottom of the handle (16), and the push switch (18) is electrically connected to the motor (8).