CN112664813B - Engine oil filter core oil drainage device - Google Patents
Engine oil filter core oil drainage device Download PDFInfo
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- CN112664813B CN112664813B CN202011322637.4A CN202011322637A CN112664813B CN 112664813 B CN112664813 B CN 112664813B CN 202011322637 A CN202011322637 A CN 202011322637A CN 112664813 B CN112664813 B CN 112664813B
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Abstract
The invention relates to the technical field of mechanical devices, and discloses an oil drainage device for an engine oil filter element, which comprises: fixed cover, support a section of thick bamboo, the puncture valve body, the elastic sealing cover, remove the dish, go out oil pipe, end and remove the pipe, fixed cover cup joints on the machine oil filter core, and can dismantle with the machine oil filter core and be connected, support a section of thick bamboo and fixed cover link firmly, the upper end of puncture valve body has the closed angle, the puncture valve body has the inlet port, the inside of supporting a section of thick bamboo is located to the puncture valve body, the elastic sealing cover is located on the puncture valve body, remove the inside sliding connection of dish and puncture valve body, it has the intercommunicating pore to remove the dish along its diameter direction, be equipped with the spring in the intercommunicating pore, the both ends of spring are connected with stifled union piece respectively, it sets up to go out oil pipe perpendicular to removal dish, a plurality of oil outlet ports have on the lateral wall of play oil pipe, end links firmly with an oil pipe, it can extend into in the end to remove the pipe and end. The device can discharge the oil in the oil filter element.
Description
Technical Field
The invention relates to the technical field of mechanical devices, in particular to an oil drainage device for an engine oil filter element.
Background
The car is the instrument of riding instead of walk of modern family's general use, and the car need change the machine oil filter core at daily maintenance's in-process, and the machine oil is held to the machine oil filter core and is equipped with machine oil, often when changing, and the machine oil temperature is higher, leads to the outer wall temperature of machine oil filter core too high, is difficult for dismantling it, needs wait for it to cool off to suitable temperature and just can operate, from this, brings inconvenience for the change of machine oil filter core.
Disclosure of Invention
The invention provides an oil drainage device for an engine oil filter element, which can drain engine oil in the engine oil filter element.
The invention provides an oil drainage device for an engine oil filter element, which comprises:
the fixed sleeve is sleeved on the periphery of the engine oil filter core, is provided with an opening and is detachably connected with the engine oil filter core;
the upper end and the lower end of the supporting cylinder are both open and are fixedly connected with the opening of the fixed sleeve;
the puncture valve body is provided with a sharp corner at the upper end, a cavity in the puncture valve body and an open lower end, and the opposite side walls are respectively provided with an oil inlet hole which is arranged in the support cylinder and can move up and down along the inner wall of the support cylinder;
the elastic sealing sleeve is sleeved on the periphery of the puncture valve body, and the periphery of the elastic sealing sleeve is in sealing connection with the inner wall of the supporting cylinder;
the movable disc is horizontally arranged in the cavity of the puncture valve body, is in sliding connection with the interior of the puncture valve body, and is provided with a plurality of communicating holes along the diameter direction, the communicating holes horizontally penetrate through the side wall of one side of the movable disc, springs are horizontally arranged in the communicating holes, the springs can extend to the two side walls of the movable disc under the unstressed state, two ends of each spring are respectively connected with plugging pieces, the surface of one side end of each plugging piece is smooth, and each plugging piece can extend to the outer wall of the puncture valve body along an oil inlet hole so as to seal or retract an orifice of each communicating hole into the corresponding communicating hole to open the orifice of each communicating hole;
the oil outlet pipe is perpendicular to the moving disc, the upper end of the oil outlet pipe is fixedly connected with the moving disc, a plurality of oil outlet holes are formed in the side wall of the oil outlet pipe, and the outer diameter of the oil outlet pipe is smaller than the inner diameter of the puncture valve body
The clamping sleeve is fixedly connected to the lower end of the oil outlet pipe, the periphery of the clamping sleeve is connected with the inner wall of the supporting cylinder in a sliding mode, and the lower end of the oil outlet pipe extends into the clamping sleeve and is in sliding fit with the clamping sleeve;
the upper end of the movable pipe can extend into the clamping sleeve and can move up and down along the clamping sleeve, and the outer diameter of the movable pipe is matched with the inner diameter of the clamping sleeve.
Optionally, the method further includes:
the hollow screw is arranged in the supporting cylinder, the upper end of the hollow screw is abutted to the lower end of the clamping sleeve, the upper end of the moving pipe can penetrate through the hollow screw to extend into the clamping sleeve, and the outer diameter of the moving pipe is matched with the inner diameter of the hollow screw.
Optionally, the outer wall of the lower portion of the moving tube has an air-filling hole.
Optionally, the fixed sleeve is a binding belt, one end of the binding belt is fixedly connected with one side of the supporting cylinder, and the other end of the binding belt is detachably connected with the other side of the supporting cylinder through a tightening screw.
Optionally, the inner wall of the support cylinder is provided with internal threads, and the hollow screw is in threaded fit with the inner wall of the support cylinder.
Optionally, the upper portion of the movable pipe is provided with external threads, and the outer wall of the movable pipe is in threaded fit with the inner wall of the hollow screw.
Optionally, a sealing ring is sleeved on the outer periphery of the moving pipe.
Optionally, the inner wall of the puncture valve body is provided with two longitudinal grooves, and the lower ends of the grooves are respectively communicated with the communicating holes.
Optionally, a pressure spring is further arranged in the puncture valve body, the pressure spring is vertically arranged, and the upper end and the lower end of the pressure spring are respectively abutted to the inner wall of the puncture valve body and the outer wall of the movable disc.
Optionally, the plugging piece comprises a plug and a connecting column, the plug is hemispherical, the plug can seal the communicating hole, the connecting column is fixedly connected with the plug, and the connecting column is connected with the spring.
Compared with the prior art, the invention has the beneficial effects that: the device can be fixed on the periphery of the engine oil filter element through the fixed sleeve, the sharp corner of the puncture valve body punctures the engine oil filter element and enables the puncture valve body to enter the interior of the engine oil filter element by pushing the movable disc until the front end of the clamping sleeve abuts against the engine oil filter element, meanwhile, the opening at the front end of the elastic sealing sleeve abuts against the surface of the puncture valve body to play a sealing role, the oil outlet pipe enters the engine oil filter element by pushing the movable pipe, in the process, the blocking piece retracts into the communicating hole to open the oil inlet hole, the engine oil enters the puncture valve body along the oil inlet hole and is discharged through the oil outlet hole, and finally the engine oil is discharged along the movable pipe until the engine oil in the engine oil filter element is emptied, so that the engine oil filter element can be dismounted, and the condition that the engine oil filter element cannot be dismounted manually due to overhigh temperature of the engine oil in the engine oil filter element is avoided.
Drawings
Fig. 1 is a schematic structural diagram of an oil drainage device for an engine oil filter element according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of main parts in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a plugging member in an embodiment of the present invention.
Description of reference numerals:
1-a fixed sleeve, 2-an engine oil filter element, 3-a supporting cylinder, 4-a puncture valve body, 5-an oil inlet, 6-a movable plate, 7-a communication hole, 8-a spring, 9-a plugging piece, 910-a plugging piece, 920-a connecting column, 10-an oil outlet pipe, 11-an oil outlet, 12-a clamping sleeve, 13-a movable pipe, 14-a hollow screw, 15-an elastic sealing sleeve, 16-an inflation hole, 17-a loose screw, 18-a sealing ring and 19-a groove.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-2, an oil drainage device for an engine oil filter element provided by an embodiment of the present invention includes: the oil filter comprises a fixed sleeve 1, a supporting cylinder 3, a puncture valve body 4, an elastic sealing sleeve 15, a movable disc 6, an oil outlet pipe 10, a clamping sleeve 12 and a movable pipe 13, wherein the fixed sleeve 1 is sleeved on the periphery of an engine oil filter element 2, the fixed sleeve 1 is provided with an opening and is detachably connected with the engine oil filter element 2, the upper end and the lower end of the supporting cylinder 3 are both opened and are fixedly connected with the opening of the fixed sleeve 1, the upper end of the puncture valve body 4 is provided with a sharp corner, the inner part is provided with a cavity, the lower end is opened, the opposite side walls of the puncture valve body 4 are respectively provided with an oil inlet 5, the puncture valve body 4 is arranged in the supporting cylinder 3 and can move up and down along the inner wall of the supporting cylinder 3, the elastic sealing sleeve 15 is sleeved on the periphery of the puncture valve body 4, the periphery is hermetically connected with the inner wall of the supporting cylinder 3, the movable disc 6 is horizontally arranged in the cavity of the puncture valve body 4 and is slidably connected with the inner part of the puncture valve body 4, the movable disc 6 is provided with a plurality of communicating holes 7 along the diameter direction thereof, in this embodiment, there are 4 communicating holes 7 in the same horizontal plane, an included angle between two adjacent communicating holes 7 is 90 °, the communicating holes 7 horizontally penetrate through a side wall of the moving plate 6, a spring 8 is horizontally disposed in the communicating holes 7, the spring 8 can extend to two side walls of the moving plate 6 in an unstressed state, two ends of the spring 8 are respectively connected with a plugging member 9, a side end surface of the plugging member 9 away from the spring 8 is smooth, the plugging member 9 can extend to an outer wall of the puncture valve body 4 along the oil inlet 5 to seal or retract an orifice of the communicating hole 7 into the communicating hole 7 to open the orifice of the communicating hole 7, the oil outlet pipe 10 is perpendicular to the moving plate 6, an upper end of the oil outlet pipe 10 is fixedly connected with the moving plate 6, a plurality of oil outlet holes 11 are disposed on a side wall of the oil outlet pipe 10, an outer diameter of the oil outlet pipe 10 is smaller than an inner diameter of the puncture valve body 4, a locking sleeve 12 is fixedly connected to a lower end of the oil outlet pipe 10, the periphery and the inner wall sliding connection of a support section of thick bamboo 3, the lower extreme of oil pipe 10 extends into to block in the cover 12, and with blocking cover 12 sliding fit, moves the pipe 13 upper end and can extend into to block in the cover 12, can follow to block the cover 12 and reciprocate, moves the external diameter of pipe 13 and blocks the internal diameter of cover 12 and cooperate.
In this embodiment, the elastic sealing sleeve 15 may be a rubber sleeve with folds, and the outer diameter of the upper portion is greater than the outer diameter of the lower portion, so that the upper portion of the rubber sleeve can seal the upper end of the supporting cylinder 3, the inner diameter of the upper portion of the clamping sleeve 12 can also be greater than the inner diameter of the lower portion, the inner diameter of the upper portion can be matched with the outer diameter of the oil outlet pipe 10, the oil outlet pipe 10 can be limited, the clamping sleeve 12 has a square shape, and the puncture valve body 4 is close to the periphery of the clamping sleeve 12 and has a clamping groove.
The use method and the working principle are as follows: when the oil filter is used, the fixed sleeve 1 is sleeved on the periphery of the oil filter element 2 for fixing, the opening at the upper end of the elastic sealing sleeve 15 is tightly abutted against the outer wall of the oil filter element 2, the clamping sleeve 12 is pushed upwards, the sharp corner of the puncture valve body 4 punctures the outer wall of the oil filter element 2 until the oil inlet hole 5 on the puncture valve body 4 completely enters the oil filter element 2, the front end of the clamping sleeve 12 is clamped below the oil filter element 2, the elastic sealing sleeve 15 plays a sealing role, the oil in the oil filter element 2 cannot flow out along the outer wall of the puncture valve body 4, then the movable pipe 13 is pushed upwards until the front end of the movable pipe abuts against the lower end of the oil outlet pipe 10 and continues to push the movable pipe 13 upwards, the movable pipe 13 drives the movable plate 6 to move upwards, the plugging piece 9 retracts into the communicating hole 7 under the pushing action, the oil inlet hole 5 is opened, the oil enters the puncture valve body 4 along the oil inlet hole 5 and flows in along the oil outlet hole 11, flow out along removing pipe 13 afterwards, in order to collect the machine oil that flows out conveniently, can be in the lower extreme coupling hose of removing pipe 13, introduce the collecting vessel with the hose in, can avoid machine oil to splash everywhere, after machine oil has been put, will remove pipe 13 and move down, then stifled union piece 9 pops out intercommunicating pore 7 under the effect of spring 8 and seals inlet port 5, and the side of stifled union piece 9 is flushed with the lateral wall of puncture valve body 4 this moment, and it can to pull down fixed cover 1 again.
The device can be fixed on the periphery of the engine oil filter element through the fixed sleeve, the sharp corner of the puncture valve body punctures the engine oil filter element and enables the puncture valve body to enter the interior of the engine oil filter element by pushing the movable disc until the front end of the clamping sleeve abuts against the engine oil filter element, meanwhile, the opening at the front end of the elastic sealing sleeve abuts against the surface of the puncture valve body to play a sealing role, the oil outlet pipe enters the engine oil filter element by pushing the movable pipe, in the process, the blocking piece retracts into the communicating hole to open the oil inlet hole, the engine oil enters the puncture valve body along the oil inlet hole and is discharged through the oil outlet hole, and finally the engine oil is discharged along the movable pipe until the engine oil in the engine oil filter element is emptied, so that the engine oil filter element can be dismounted, and the condition that the engine oil filter element cannot be dismounted manually due to overhigh temperature of the engine oil in the engine oil filter element is avoided.
Optionally, the method further includes: and a hollow screw 14, wherein the hollow screw 14 is arranged in the support barrel 3, the upper end of the hollow screw is abutted against the lower end of the clamping sleeve 12, the upper end of the movable pipe 13 can penetrate through the hollow screw 14 and extend into the clamping sleeve 12, the outer diameter of the movable pipe 13 is matched with the inner diameter of the hollow screw 14, and the hollow screw 14 is rotated by a wrench to move the clamping sleeve 12 upwards or downwards.
Optionally, the outer wall of the lower part of the moving pipe 13 is provided with an air charging hole 16, and after the engine oil is basically discharged, low-pressure air of about 1-2MPa is injected from the air charging hole 16 to blow the liquid remained in the device back to the engine oil filter element 2 for recycling.
Optionally, the fixing sleeve 1 is a binding belt, one end of the binding belt is fixedly connected with one side of the supporting cylinder 3, and the other end of the binding belt is detachably connected with the other side of the supporting cylinder 3 through a tightening screw 17.
Optionally, the inner wall of the support cylinder 3 is provided with an internal thread, and the hollow screw 14 is in threaded fit with the inner wall of the support cylinder 3.
Optionally, the upper portion of the moving tube 13 has an external thread, and the outer wall of the moving tube 13 is screw-engaged with the inner wall of the hollow screw 14.
Optionally, a sealing ring 18 is sleeved on the outer periphery of the moving pipe 13.
Optionally, the inner wall of the puncture valve body 4 is provided with two longitudinal grooves 19, and the lower ends of the grooves 19 are respectively communicated with the communicating holes 7, so that the plugging member 9 is ensured to slide along the grooves 19 and smoothly enter the oil inlet 5.
Optionally, a pressure spring 20 is further arranged in the puncture valve body 4, the pressure spring 20 is vertically arranged, the upper end and the lower end of the pressure spring 20 are respectively abutted to the inner wall of the puncture valve body 4 and the outer wall of the movable disc 6, and after the upper end of the movable tube 13 is separated from the oil outlet tube 10, the movable disc 6 moves downwards under the action of the pressure spring 20 until the plugging member 9 extends to the puncture valve body 4 from the oil inlet 5.
Optionally, the plugging piece 9 comprises a plug 910 and a connecting column 920, the plug 910 is hemispherical, the plug 910 can seal the communicating hole 7, the connecting column 920 is fixedly connected with the plug 910, the connecting column 920 is connected with a spring 8, after the supporting cylinder 3 of the fixing sleeve 1 is removed, the puncture valve body 4 is not easy to directly fall off from the upper surface of the engine oil filter element 2, the puncture valve body and the engine oil filter element 2 are screwed off together to be separated, and residual liquid leakage is avoided when a hole left by the puncture valve body 4 on the engine oil filter element 2 is removed.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (9)
1. The utility model provides an engine oil filter core oil drain device which characterized in that includes:
the fixed sleeve (1) is sleeved on the periphery of the engine oil filter element (2), is provided with an opening and is detachably connected with the engine oil filter element (2);
the upper end and the lower end of the supporting cylinder (3) are both open and are connected with the opening of the fixed sleeve (1);
the puncture valve body (4) is provided with a sharp corner at the upper end, a cavity inside and an open lower end, and oil inlet holes (5) are respectively arranged on the opposite side walls, are arranged inside the supporting cylinder (3) and can move up and down along the inner wall of the supporting cylinder (3);
the elastic sealing sleeve (15) is sleeved on the periphery of the puncture valve body (4), and the periphery of the elastic sealing sleeve is in sealing connection with the inner wall of the support cylinder (3);
a moving disk (6) horizontally arranged in the cavity of the puncture valve body (4), connected with the interior of the puncture valve body (4) in a sliding way and provided with a plurality of communicating holes (7) along the diameter direction, the communicating hole (7) horizontally penetrates through the side wall of one side of the moving disc (6), a spring (8) is horizontally arranged in the communicating hole (7), the spring (8) can extend to two side walls of the moving disk (6) under the unstressed state, two ends of the spring (8) are respectively connected with a plugging piece (9), the surface of one side end of the plugging piece (9) far away from the spring (8) is smooth, the plugging piece (9) can extend to the outer wall of the puncture valve body (4) along the oil inlet hole (5) to close the hole opening of the communication hole (7) or retract into the communication hole (7) to open the hole opening of the communication hole (7);
the oil outlet pipe (10) is perpendicular to the moving disc (6), the upper end of the oil outlet pipe is fixedly connected with the moving disc (6), the side wall of the oil outlet pipe is provided with a plurality of oil outlet holes (11), and the outer diameter of the oil outlet pipe is smaller than the inner diameter of the puncture valve body (4);
the clamping sleeve (12) is fixedly connected to the lower end of the oil outlet pipe (10), the periphery of the clamping sleeve is connected with the inner wall of the supporting barrel (3) in a sliding mode, and the lower end of the oil outlet pipe (10) extends into the clamping sleeve (12) and is in sliding fit with the clamping sleeve (12);
the upper end of the moving pipe (13) can extend into the clamping sleeve (12) and can move up and down along the clamping sleeve (12), and the outer diameter of the moving pipe (13) is matched with the inner diameter of the clamping sleeve (12);
the hollow screw (14) is arranged in the support cylinder (3), the upper end of the hollow screw is abutted against the lower end of the clamping sleeve (12), the upper end of the moving pipe (13) can penetrate through the hollow screw (14) and extend into the clamping sleeve (12), and the outer diameter of the moving pipe (13) is matched with the inner diameter of the hollow screw (14);
when the oil filter is used, the fixed sleeve (1) is sleeved on the periphery of the oil filter element (2) to be fixed, the opening at the upper end of the elastic sealing sleeve (15) is tightly abutted against the outer wall of the oil filter element (2), the clamping sleeve (12) is pushed upwards, the sharp corner of the puncture valve body (4) punctures the outer wall of the oil filter element (2) until the oil inlet hole (5) on the puncture valve body (4) completely enters the oil filter element (2), the front end of the clamping sleeve (12) is clamped below the oil filter element (2), the elastic sealing sleeve (15) plays a sealing role, the oil in the oil filter element (2) cannot flow out along the outer wall of the puncture valve body (4), then the movable pipe (13) is pushed upwards until the front end of the movable pipe is abutted against the lower end of the oil outlet pipe (10) and continues to push the movable pipe (13) upwards, the movable pipe (13) drives the movable disc (6) to move upwards, and the plugging piece (9) retracts into the communicating hole (7) under the action of the pushing force, at the moment, the oil inlet (5) is opened, the engine oil enters the puncture valve body (4) along the oil inlet (5) and flows in along the oil outlet (11), then flows out along the movable pipe (13), the lower end of the movable pipe (13) is connected with a hose in order to collect the flowing engine oil, the hose is introduced into the collection barrel, the engine oil can be prevented from splashing everywhere, after the engine oil is discharged, the movable pipe (13) moves downwards, the plugging member (9) pops out the communicating hole (7) under the action of the spring (8) to seal the oil inlet (5), the side end of the plugging member (9) is flush with the outer side wall of the puncture valve body (4), and the fixed sleeve (1) is detached.
2. The oil filter cartridge discharging device of claim 1, wherein the outer wall of the lower portion of the moving pipe (13) has an air filling hole (16).
3. The oil drain device of the engine oil filter element according to claim 1, wherein the fixed sleeve (1) is a binding belt, one end of the binding belt is fixedly connected with one side of the supporting cylinder (3), and the other end of the binding belt is detachably connected with the other side of the supporting cylinder (3) through a tightening screw (17).
4. The oil filter element drain device according to claim 1, wherein the inner wall of the support cylinder (3) has an internal thread, and the hollow screw (14) is screw-engaged with the inner wall of the support cylinder (3).
5. The oil filter cartridge drain of claim 1, wherein the upper portion of the moving pipe (13) has an external thread, and the outer wall of the moving pipe (13) is screw-engaged with the inner wall of the hollow screw (14).
6. The oil drain device of claim 1, wherein a seal ring (18) is fitted around the outer periphery of the moving pipe (13).
7. The oil filter element drain device according to claim 1, wherein the inner wall of the penetration valve body (4) is provided with two longitudinal grooves (19), and the lower ends of the grooves (19) are respectively communicated with the communication holes (7).
8. The oil drain device of the engine oil filter element according to claim 1, wherein a pressure spring (20) is further disposed in the puncture valve body (4), the pressure spring (20) is vertically disposed, and upper and lower ends of the pressure spring (20) abut against an inner wall of the puncture valve body (4) and an outer wall of the movable disk (6), respectively.
9. The oil filter element oil drain device according to claim 1, wherein the plug (9) comprises a plug (910) and a connecting column (920), the plug (910) is hemispherical, the plug (910) can seal the communicating hole (7), the connecting column (920) is fixedly connected with the plug (910), and the connecting column (920) is connected with the spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322637.4A CN112664813B (en) | 2020-11-23 | 2020-11-23 | Engine oil filter core oil drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322637.4A CN112664813B (en) | 2020-11-23 | 2020-11-23 | Engine oil filter core oil drainage device |
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| Publication Number | Publication Date |
|---|---|
| CN112664813A CN112664813A (en) | 2021-04-16 |
| CN112664813B true CN112664813B (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011322637.4A Active CN112664813B (en) | 2020-11-23 | 2020-11-23 | Engine oil filter core oil drainage device |
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| Country | Link |
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| CN (1) | CN112664813B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003247A (en) * | 2010-12-14 | 2011-04-06 | 郑成龙 | Detachment-free oil drainage bolt |
| CN202756054U (en) * | 2012-08-14 | 2013-02-27 | 马玉珍 | Fuel outlet valve of engine and fuel outlet joint thereof |
| CN205350814U (en) * | 2016-02-04 | 2016-06-29 | 董亚祥 | Butter adds notes pile -up valve |
| CN206655727U (en) * | 2017-04-13 | 2017-11-21 | 广州顺爽汽车科技有限公司 | Fuel outlet valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4165295B2 (en) * | 2003-05-26 | 2008-10-15 | 日立工機株式会社 | ON / OFF VALVE AND DRIVING MACHINE HAVING ON / OFF VALVE |
| US7537027B2 (en) * | 2003-11-24 | 2009-05-26 | Campbell Hausfeld/Scott Fetzer Company | Valve with duel outlet ports |
| US7846330B2 (en) * | 2007-03-19 | 2010-12-07 | Nelson Keith A | Oil filter drain tool |
-
2020
- 2020-11-23 CN CN202011322637.4A patent/CN112664813B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003247A (en) * | 2010-12-14 | 2011-04-06 | 郑成龙 | Detachment-free oil drainage bolt |
| CN202756054U (en) * | 2012-08-14 | 2013-02-27 | 马玉珍 | Fuel outlet valve of engine and fuel outlet joint thereof |
| CN205350814U (en) * | 2016-02-04 | 2016-06-29 | 董亚祥 | Butter adds notes pile -up valve |
| CN206655727U (en) * | 2017-04-13 | 2017-11-21 | 广州顺爽汽车科技有限公司 | Fuel outlet valve |
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|---|---|
| CN112664813A (en) | 2021-04-16 |
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