CN111706418A - Oil drain device of engine oil pan - Google Patents
Oil drain device of engine oil pan Download PDFInfo
- Publication number
- CN111706418A CN111706418A CN202010595642.6A CN202010595642A CN111706418A CN 111706418 A CN111706418 A CN 111706418A CN 202010595642 A CN202010595642 A CN 202010595642A CN 111706418 A CN111706418 A CN 111706418A
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- CN
- China
- Prior art keywords
- oil
- hole
- oil drain
- guide cylinder
- oil pan
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0408—Sump drainage devices, e.g. valves, plugs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0408—Sump drainage devices, e.g. valves, plugs
- F01M2011/0416—Plugs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an oil drain device of an engine oil pan, which comprises an oil pan, wherein a boss protruding downwards is formed on the bottom surface of the lower end of the oil pan, an oil drain hole penetrating up and down is formed on the boss, and an oil plug is arranged in the oil drain hole; the oil plug comprises a guide cylinder which is in clearance fit with the oil drain hole, a convex ring is formed on the guide cylinder by penetrating through the upper extending end of the oil drain hole, an annular groove is formed in the middle of the guide cylinder, two obliquely arranged crossed first oil ducts are formed in the annular groove, and a second oil duct which is opened at the lower side and communicated with the two first oil ducts is formed in the guide cylinder; the upper end of the guide cylinder is formed with a sealing groove, a sealing ring is sleeved in the sealing groove, the outer wall of the sealing ring is abutted against the inner wall of the oil drain hole, and the sealing ring is positioned on the upper side of the annular groove. The invention can effectively avoid lubricating oil from splashing on workers when the oil pan discharges oil and effectively avoid the phenomenon of thread slipping.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an oil drain device of an engine oil pan.
Background
The oil pan is positioned at the lower part of the engine and is used for sealing the crankcase to be used as a shell of an oil storage tank, preventing impurities from entering, collecting and storing lubricating oil flowing back from each friction surface of the engine, dissipating part of heat and preventing the lubricating oil from being oxidized. After the transmitter operates for a period of time, the lubricating oil needs to be replaced, when the lubricating oil is replaced, oil pan screws screwed at the bottom of an oil pan are generally unscrewed, and then the lubricating oil flows downwards from threaded holes screwed with the oil pan screws; in the process of unscrewing the oil pan screw, lubricating oil flows out of the threaded hole and splashes on the body of a worker; or due to the increase of the lubricating oil replacing times, the thread of the threaded hole slips, and the oil pan screw cannot be screwed tightly or leaks oil.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an oil drain device of an engine oil pan, which can effectively avoid lubricating oil from splashing on workers when the oil drain device is used for draining oil to the oil pan and effectively avoid the phenomenon of thread slipping.
The scheme for solving the technical problems is as follows:
an oil drain device of an engine oil pan comprises the oil pan, wherein a boss protruding downwards is formed on the bottom surface of the lower end of the oil pan, an oil drain hole penetrating up and down is formed in the boss, and an oil plug is arranged in the oil drain hole; the oil plug comprises a guide cylinder which is in clearance fit with the oil drain hole, a convex ring is formed on the guide cylinder by penetrating through the upper extending end of the oil drain hole, an annular groove is formed in the middle of the guide cylinder, two obliquely arranged crossed first oil ducts are formed in the annular groove, and a second oil duct which is opened at the lower side and communicated with the two first oil ducts is formed in the guide cylinder; the upper end of the guide cylinder is formed with a sealing groove, a sealing ring is sleeved in the sealing groove, the outer wall of the sealing ring is abutted against the inner wall of the oil drain hole, and the sealing ring is positioned on the upper side of the annular groove.
A connecting column which is vertical to the boss is fixed on the outer wall of the boss, a rectangular hole which is communicated with the oil drain hole is formed at the inner end of the connecting column, and a threaded through hole which is communicated with the rectangular hole is formed at the outer end of the connecting column;
two right-angle trapezoidal holes which are arranged in the front and at the back are formed in the lower end of the guide cylinder body, and the two right-angle trapezoidal holes are respectively arranged on two sides of the second oil duct; a right-angle trapezoidal block is sleeved in each right-angle trapezoidal hole, and a first inclined surface on the lower side wall of each right-angle trapezoidal block is pressed against a second inclined surface on the lower side wall of each right-angle trapezoidal hole; the two right-angle trapezoidal blocks are respectively fixed at two ends of the U-shaped block, the U-shaped block is inserted and sleeved in the rectangular hole, the middle part of the U-shaped block is fixedly provided with a step column body, the step column body is inserted and sleeved in the step hole of the screw rod, and the outer end of the screw rod is screwed in the threaded through hole; and a hexagonal hole is formed at the outer end of the screw rod.
The outer diameter of the large end of the step column body is larger than the inner diameter of the small end hole of the step hole.
A spring support is fixed on the inner wall of the oil pan, a tension spring is fixed on the spring support, and the other end of the tension spring is fixed on the convex ring.
The lower end of the guide column body extends to the lower part of the boss, and the distance L1 between the lower end face of the guide column body and the lower end face of the boss is larger than the distance L2 between the upper end face of the oil drain hole and the upper side wall of the annular groove.
And screw rod abdicating grooves are formed on the upper side wall and the lower side wall of the rectangular hole.
The outer contour of the end part of the U-shaped block close to the step column body is matched with the inner wall of the rectangular hole.
The invention has the following outstanding effects: compared with the prior art, the oil pan oil drain device can effectively avoid lubricating oil from splashing on a worker when the oil pan is drained and effectively avoid the phenomenon of thread slipping.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2 taken about B-B;
FIG. 4 is a cross-sectional view of FIG. 3 taken about C-C;
fig. 5 is a cross-sectional view of fig. 4 taken about D-D.
Detailed Description
In the embodiment, as shown in fig. 1 to 5, an oil drain device of an engine oil pan comprises an oil pan 1, wherein a boss 11 protruding downwards is formed on the bottom surface of the lower end of the oil pan 1, an oil drain hole 12 penetrating up and down is formed on the boss 11, and an oil plug 2 is arranged in the oil drain hole 12; the oil plug 2 comprises a guide cylinder 21 which is in clearance fit with the oil drain hole 12, a convex ring 22 is formed at the upper extending end of the guide cylinder 21, which penetrates through the oil drain hole 12, an annular groove 23 is formed in the middle of the guide cylinder 21, two obliquely arranged crossed first oil channels 24 are formed on the annular groove 23, and a second oil channel 25 which is opened at the lower side and is communicated with the two first oil channels 24 is formed in the guide cylinder 21; the upper end of the guide column body 21 is formed with a sealing groove 26, a sealing ring 3 is sleeved in the sealing groove 26, the outer wall of the sealing ring 3 is abutted against the inner wall of the oil drain hole 12, and the sealing ring 3 is positioned at the upper side of the annular groove 23.
Furthermore, a connecting column 4 which is perpendicular to the boss 11 is fixed on the outer wall of the boss 11, a rectangular hole 41 which is communicated with the oil drain hole 12 is formed at the inner end of the connecting column 4, and a threaded through hole 42 which is communicated with the rectangular hole 41 is formed at the outer end of the connecting column 4;
two right-angle trapezoidal holes 27 which are arranged in the front and at the back are formed in the lower end of the guide cylinder 21, and two sides of the second oil channel 25 are respectively arranged in the two right-angle trapezoidal holes 27; a right-angle trapezoidal block 51 is sleeved in each right-angle trapezoidal hole 27, and a first inclined surface 511 on the lower side wall of the right-angle trapezoidal block 51 is pressed against a second inclined surface 271 on the lower side wall of the right-angle trapezoidal hole 27; the two right-angle trapezoidal blocks 51 are respectively fixed at two ends of the U-shaped block 52, the U-shaped block 52 is inserted in the rectangular hole 41, the middle part of the U-shaped block 52 is fixed with a step column 53, the step column 53 is inserted in the step hole 541 of the screw 54, and the outer end of the screw 54 is screwed in the threaded through hole 42; the outer end of the screw 54 is formed with a hexagonal hole 542.
Further, the outer diameter of the large end of the stepped cylinder 53 is larger than the inner diameter of the small end hole of the stepped hole 541.
Furthermore, a spring support 61 is fixed on the inner wall of the oil pan 1, a tension spring 62 is fixed on the spring support 61, and the other end of the tension spring 62 is fixed on the convex ring 22.
Further, the lower end of the guide cylinder 21 projects below the boss 11, and a distance L1 between the lower end surface of the guide cylinder 21 and the lower end surface of the boss 11 is greater than a distance L2 between the upper end surface of the oil drain hole 12 and the upper side wall of the annular groove 23.
Further, screw relief grooves 43 are formed on the upper and lower sidewalls of the rectangular hole 41.
Furthermore, the outer contour of the end of the U-shaped block 52 near the stepped column 53 is matched with the inner wall of the rectangular hole 41.
The working principle is as follows: when oil drainage needs to be performed on lubricating oil in the oil pan 1, the screw rod 54 is rotated by an inner hexagonal wrench, the screw rod 54 moves outwards under the action of the threaded through hole 42, the screw rod 54 drives the step cylinder 53 to move outwards, the step cylinder 53 drives the U-shaped block 52 to move outwards, the U-shaped block 52 drives the two right-angle trapezoidal blocks 51 to move outwards and separate from the second inclined planes 271 of the corresponding support pin trapezoidal holes 27, the convex ring 22 is driven to move upwards under the action of the tension spring, the convex ring 22 drives the guide cylinder 21 to move upwards, when the upper side wall of the annular groove is higher than the upper side wall of the oil drainage hole 12, the lubricating oil in the oil pan enters the annular groove, then enters the second oil channel 25 through the two first oil channels 24, and then drops downwards through the second oil channel 25; because the connecting column 4 is perpendicular to the oil drain hole, workers can drain oil on one side of the oil drain hole, and lubricating oil can be prevented from dripping on the bodies of the workers; after the oil drain is completed, the screw 54 is turned over, the right-angled trapezoidal block 51 moves inwards to press against the second inclined surface 271, then as the right-angled trapezoidal block 51 continues to move inwards, the second inclined surface 271 is pressed to the lower side to press the guide column 21 downwards, and the seal ring 3 moves downwards to press against the inner wall of the oil drain hole again, thereby performing a sealing function.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (7)
1. The utility model provides an engine oil pan oil drain device, includes oil pan (1), its characterized in that: a boss (11) protruding downwards is formed on the bottom surface of the lower end of the oil pan (1), an oil drain hole (12) penetrating up and down is formed on the boss (11), and an oil plug (2) is arranged in the oil drain hole (12); the oil plug (2) comprises a guide cylinder body (21) which is arranged in clearance fit with the oil drain hole (12), a convex ring (22) is formed at the upper extending end of the guide cylinder body (21) which penetrates through the oil drain hole (12), an annular groove (23) is formed in the middle of the guide cylinder body (21), two obliquely arranged crossed first oil channels (24) are formed in the annular groove (23), and a second oil channel (25) which is opened at the lower side and is communicated with the two first oil channels (24) is formed in the guide cylinder body (21); the upper end shaping of guide cylinder (21) has seal groove (26), has cup jointed sealing washer (3) in seal groove (26), and the outer wall of sealing washer (3) is close to on the inner wall of oil drain hole (12), sealing washer (3) are located the upside of annular groove (23).
2. The oil drain device for the engine oil pan according to claim 1, characterized in that: a connecting column (4) which is vertical to the boss (11) is fixed on the outer wall of the boss, a rectangular hole (41) which is communicated with the oil drain hole (12) is formed at the inner end of the connecting column (4), and a threaded through hole (42) which is communicated with the rectangular hole (41) is formed at the outer end of the connecting column (4);
two right-angle trapezoidal holes (27) which are arranged in the front and at the back are formed in the lower end of the guide cylinder (21), and two sides of a second oil channel (25) are respectively arranged in the two right-angle trapezoidal holes (27); a right-angle trapezoidal block (51) is sleeved in each right-angle trapezoidal hole (27), and a first inclined surface (511) on the lower side wall of the right-angle trapezoidal block (51) is pressed against a second inclined surface (271) on the lower side wall of the right-angle trapezoidal hole (27); the two right-angle trapezoidal blocks (51) are respectively fixed at two ends of the U-shaped block (52), the U-shaped block (52) is inserted in the rectangular hole (41), the middle part of the U-shaped block (52) is fixedly provided with a step column body (53), the step column body (53) is inserted in the step hole (541) of the screw rod (54), and the outer end of the screw rod (54) is screwed in the threaded through hole (42); and a hexagonal hole (542) is formed at the outer end of the screw rod (54).
3. The oil drain device for the engine oil pan according to claim 2, characterized in that: the outer diameter of the large end of the step cylinder (53) is larger than the inner diameter of the small end hole of the step hole (541).
4. The oil drain device for the engine oil pan according to claim 2, characterized in that: a spring support (61) is fixed on the inner wall of the oil pan (1), a tension spring (62) is fixed on the spring support (61), and the other end of the tension spring (62) is fixed on the convex ring (22).
5. The oil drain device for the engine oil pan according to claim 1 or 2, characterized in that: the lower end of the guide column body (21) extends to the lower part of the boss (11), and the distance L1 between the lower end surface of the guide column body (21) and the lower end surface of the boss (11) is larger than the distance L2 between the upper end surface of the oil drain hole (12) and the upper side wall of the annular groove (23).
6. The oil drain device for the engine oil pan according to claim 2, characterized in that: and screw rod abdicating grooves (43) are formed on the upper side wall and the lower side wall of the rectangular hole (41).
7. The oil drain device for the engine oil pan according to claim 2, characterized in that: the outer contour of the end part of the U-shaped block (52) close to the step column (53) is matched with the inner wall of the rectangular hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010595642.6A CN111706418B (en) | 2020-06-28 | 2020-06-28 | Oil drain device of engine oil pan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010595642.6A CN111706418B (en) | 2020-06-28 | 2020-06-28 | Oil drain device of engine oil pan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111706418A true CN111706418A (en) | 2020-09-25 |
| CN111706418B CN111706418B (en) | 2021-06-22 |
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ID=72542895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010595642.6A Active CN111706418B (en) | 2020-06-28 | 2020-06-28 | Oil drain device of engine oil pan |
Country Status (1)
| Country | Link |
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| CN (1) | CN111706418B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112706A (en) * | 2020-09-29 | 2020-12-22 | 中国航发动力股份有限公司 | Oil drainage device and method for sealing valve |
| CN116085356A (en) * | 2023-04-07 | 2023-05-09 | 杭州未名信科科技有限公司 | Disassembly-free maintenance component of jacking hydraulic system of tower crane |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3477459A (en) * | 1967-06-20 | 1969-11-11 | George W Schossow | Vehicle crankcase drain plug with remote operator |
| AU1414976A (en) * | 1975-05-21 | 1977-11-24 | Mobil Oil Australia | Drain valve |
| EP0208632A1 (en) * | 1985-06-28 | 1987-01-14 | Francine Brouel | Manually remotely controlled drain plug |
| AU2003252939A1 (en) * | 2002-10-24 | 2004-05-20 | Kirby, Stanley Walter Mr | Kirby sump plug |
| CN104863663A (en) * | 2015-06-08 | 2015-08-26 | 河北华北柴油机有限责任公司 | Rapid oil drain device with one-way valve type oil plug of oil pan |
| CN104975907A (en) * | 2015-07-10 | 2015-10-14 | 广西玉柴机器股份有限公司 | Engine oil drainage device of oil pan of engine |
| CN105781671A (en) * | 2016-05-23 | 2016-07-20 | 潍柴动力股份有限公司 | Oil drainage device and oil sump |
-
2020
- 2020-06-28 CN CN202010595642.6A patent/CN111706418B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3477459A (en) * | 1967-06-20 | 1969-11-11 | George W Schossow | Vehicle crankcase drain plug with remote operator |
| AU1414976A (en) * | 1975-05-21 | 1977-11-24 | Mobil Oil Australia | Drain valve |
| EP0208632A1 (en) * | 1985-06-28 | 1987-01-14 | Francine Brouel | Manually remotely controlled drain plug |
| AU2003252939A1 (en) * | 2002-10-24 | 2004-05-20 | Kirby, Stanley Walter Mr | Kirby sump plug |
| CN104863663A (en) * | 2015-06-08 | 2015-08-26 | 河北华北柴油机有限责任公司 | Rapid oil drain device with one-way valve type oil plug of oil pan |
| CN104975907A (en) * | 2015-07-10 | 2015-10-14 | 广西玉柴机器股份有限公司 | Engine oil drainage device of oil pan of engine |
| CN105781671A (en) * | 2016-05-23 | 2016-07-20 | 潍柴动力股份有限公司 | Oil drainage device and oil sump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112706A (en) * | 2020-09-29 | 2020-12-22 | 中国航发动力股份有限公司 | Oil drainage device and method for sealing valve |
| CN112112706B (en) * | 2020-09-29 | 2021-08-17 | 中国航发动力股份有限公司 | Oil drainage device and method for sealing valve |
| CN116085356A (en) * | 2023-04-07 | 2023-05-09 | 杭州未名信科科技有限公司 | Disassembly-free maintenance component of jacking hydraulic system of tower crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111706418B (en) | 2021-06-22 |
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Effective date of registration: 20210602 Address after: 318050 Juqiao village, Jinqing Town, Luqiao District, Taizhou, Zhejiang, China Applicant after: ZHEJIANG LINGBEN MACHINERY & ELECTRONICS Co.,Ltd. Address before: 523000 Building 1, No.9 Keji 9 Road, Songshanhu Park, Dongguan City, Guangdong Province Applicant before: Dongguan Jiahong Electromechanical Technology Co.,Ltd. |
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