CN211820749U - Quick oil drain device of oil pan - Google Patents
Quick oil drain device of oil pan Download PDFInfo
- Publication number
- CN211820749U CN211820749U CN201922448565.7U CN201922448565U CN211820749U CN 211820749 U CN211820749 U CN 211820749U CN 201922448565 U CN201922448565 U CN 201922448565U CN 211820749 U CN211820749 U CN 211820749U
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- guide
- oil
- locking
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a quick oil drain device of oil pan, including the oil pan, the oil pan is equipped with the oil drain, quick oil drain device of oil pan still includes the open and close valve, the open and close valve sets up in the oil drain, the open and close valve includes the valve body, valve rod and hollow depression bar, the valve body is fixed in the oil pan, in the valve body was located to valve rod and depression bar, the valve body both ends are equipped with the opening respectively, the valve rod is located the upper end opening of valve body, the depression bar is located the lower extreme opening of valve body, be equipped with the elastic component between valve rod and the valve body, the valve rod is equipped with the valve rod oil duct, the depression bar is equipped with the depression bar oil duct that is linked together with the valve. This application makes the elevation structure action through pressing the depression bar, and elevation structure drives the lift of valve lever, and then realizes opening or closing of open and close valve, convenient operation, and simple swift, and be convenient for operation in narrow space has improved the convenience of oil pan oil drain operation.
Description
Technical Field
The utility model relates to the technical field of engines, specific theory relates to a quick oil drain device of oil pan.
Background
The oil pan is equipped with the oil drain plug, and oil drain plug threaded connection is in the oil pan, when putting the machine oil, twists off the oil drain plug, and machine oil flows out from the oil pan, and after the oil drain work was accomplished, oil drain plug threaded connection in the oil pan again.
When the structure puts the engine oil at every time, the oil discharging plug needs to be screwed on and unscrewed, the oil discharging action is complicated, the efficiency is low, and particularly, the operation space is narrow and small on the whole vehicle, and the oil discharging is extremely inconvenient.
Disclosure of Invention
To the above problem, the utility model aims to solve the technical problem that: the utility model provides a quick oil drain device of oil pan, this oil drain device convenient operation has realized swift oil drain.
In order to solve the technical problem, the technical scheme of the utility model is that:
a quick oil drain device of an oil pan comprises: the oil pan, the oil pan is equipped with the oil discharge opening, the quick oil drain device of oil pan still includes the open and close valve, the open and close valve set up in the oil discharge opening, the open and close valve includes valve body, valve rod and hollow depression bar, the valve body is fixed in the oil pan, the valve rod with the depression bar is located in the valve body, the valve body both ends are equipped with the opening respectively, the valve rod is located in the upper end opening of valve body, the depression bar is located in the lower extreme opening of valve body, the valve rod with be equipped with the elastic component between the valve body, the valve rod is equipped with the valve rod oil duct, the depression bar be equipped with the depression bar oil duct that the valve rod oil duct is linked together, the valve body the valve rod with be equipped with elevation structure between the depression bar, press the.
Preferably, the lifting structure comprises a guide rib, a pressure lever saw tooth and a locking saw tooth;
the guide ribs are arranged in parallel to the axial direction, a plurality of guide ribs are uniformly distributed and fixed on the inner surface of the lower end of the valve body in the circumferential direction, and the upper end of each guide rib is provided with a guide rib guide inclined plane;
the pressing rod sawteeth are provided with a plurality of sets of pressing rod sawteeth which are uniformly distributed at the upper end of the pressing rod in the circumferential direction, a pressing rod guide groove is formed between every two adjacent pressing rod sawteeth, the pressing rod guide sleeve is connected with the guide rib in a sliding mode, and each pressing rod sawtooth comprises a first pressing rod guide inclined plane;
the locking sawteeth are provided with a plurality of sets of locking sawteeth which are evenly distributed at the lower end of the valve rod in the circumferential direction, a locking guide groove is arranged between every two adjacent locking sawteeth, the locking guide grooves can be in sliding connection with the guide ribs, and each set of locking sawteeth comprises a first locking guide inclined plane and a locking limiting plane adjacent to the first locking guide inclined plane;
the guide rib, the pressing rod sawtooth, the pressing rod guide groove, the locking sawtooth and the locking guide groove are equal in number, and the first locking guide inclined plane, the first pressing rod guide inclined plane and the guide rib guide inclined plane are consistent in inclined direction.
Preferably, the valve body comprises a fixed seat and a guide sleeve fixed below the fixed seat, the fixed seat is fixed on the oil pan, the guide rib is arranged on the guide sleeve, and the pressure lever is located in the guide sleeve.
Preferably, a limiting structure is arranged between the pressure rod and the guide sleeve, the limiting structure comprises a guide sleeve limiting ring arranged on the inner surface of the lower end of the guide sleeve, the pressure rod sawtooth is arranged on a pressure rod sawtooth seat, the pressure rod sawtooth seat radially protrudes out of the pressure rod, and the outer diameter of the pressure rod sawtooth seat is larger than the inner diameter of the guide sleeve limiting ring.
Preferably, the valve rod comprises a valve rod body and a locking piece fixed at the lower end of the valve rod body, and the locking sawtooth is arranged on the locking piece.
Preferably, the valve rod body is fixedly provided with a valve rod flange, and the locking piece is fixedly connected with the valve rod flange.
Preferably, the inner surface of the fixing seat is provided with a fixing seat limiting ring, and the elastic part is positioned between the fixing seat limiting ring and the valve rod flange.
Preferably, the upper surface of the fixing seat is provided with a fixing seat conical surface, and the upper end of the valve rod body is provided with a valve rod conical surface matched with the fixing seat conical surface.
Preferably, the conical surface of the fixing seat is provided with a sealing groove, and a sealing ring is arranged in the sealing groove.
Preferably, the elastic member is a coil spring.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
because the oil discharge opening is provided with the open and close valve, the open and close valve includes the valve body, valve rod and hollow depression bar, the valve body is fixed in the oil pan, in the valve body was located to valve rod and depression bar, the valve body both ends were equipped with the opening respectively, the valve rod is located the upper end opening of valve body, the depression bar is located the lower extreme opening of valve body, be equipped with the elastic component between valve rod and the valve body, the valve rod is equipped with the valve rod oil duct, the depression bar is equipped with the depression bar oil duct that is linked together with the valve rod oil duct, the valve body, be equipped with elevation structure between valve. This application makes the elevation structure action through pressing the depression bar, and the elevation of elevation structure drive valve rod, and then realizes opening or closing of open and close valve, has convenient operation, simple swift benefit, and the convenience of the operation of oil pan oil drain has been improved in the operation of being convenient for in narrow space.
Drawings
FIG. 1 is a schematic structural view of the quick oil drain device of the oil pan of the present invention;
FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;
FIG. 3 is an exploded view of the valve of FIG. 2;
FIG. 4 is a schematic sectional structure view when the opening-closing valve is closed;
FIG. 5 is a schematic structural view of the elevating structure when the opening and closing valve is closed;
FIG. 6 is a schematic sectional view of the opening and closing valve when it is opened;
FIG. 7 is a schematic structural view of the elevating structure when the opening and closing valve is opened;
FIG. 8 is a schematic structural view of the elevating structure when the opening and closing valve is opened from a closed position to a position during the opening process;
FIG. 9 is a schematic structural view of the elevating structure when the opening and closing valve is opened to a certain position during closing;
in the figure: 1-an oil pan; 2-a compression bar; 21-a first compression bar guide ramp; 22-a second lever guide ramp; 23-a pressure lever sawtooth seat; 24-a pressure bar guide groove; 25-a compression bar oil passage; 3, a guide sleeve; 31-a guide sleeve flange; 32-a guide rib; 33-guiding the inclined plane by the guiding rib; 34-a guide sleeve limiting ring; 4-a lock; 41-a first locking guide ramp; 42-a second locking guide ramp; 43-locking guide groove; 44-locking limiting surface; 5-fixing the base; 51-a seal groove; 52-a fixed seat limiting ring; 6-sealing ring; 7-a coil spring; 8-a valve stem body; 81-valve stem flange; 82-an oil inlet; 83-a conical block; 84-valve stem oil passage.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The arrows shown in fig. 8 and 9 indicate the direction of rotation of the lock member 4.
As shown in fig. 1 and fig. 2, the quick oil drain device for the oil pan comprises the oil pan 1 and an opening and closing valve, wherein the oil pan 1 is provided with an oil drain, and the opening and closing valve is arranged on the oil drain.
As shown in fig. 2, 3, 4 and 6, the opening and closing valve includes a valve body, a valve stem, and a hollow pressure rod 2, the valve stem is disposed in the valve body, and a lifting structure is disposed between the valve body, the valve stem, and the pressure rod 2.
The valve body includes fixing base 5 and the uide bushing 3 of being fixed in fixing base 5 below, and the upper end of uide bushing 3 is equipped with uide bushing flange 31, and uide bushing flange 31 and 5 bolted connection of fixing base. Fixing base 5 cavity sets up, and fixing base 5 is fixed in oil pan 1, if weld in oil pan 1 or threaded connection in oil discharge port, and the upper surface of fixing base 5 is equipped with the conical surface, and the conical surface is equipped with annular seal groove 51, is equipped with sealing washer 6 in the seal groove 51.
The valve rod includes valve rod body 8 and the locking piece 4 that is fixed in 8 lower extremes of valve rod body, and valve rod body 8 and locking piece 4 are located in fixing base 5 and uide bushing 3.
The fixed conical block 83 that is equipped with the handstand in upper end of valve rod body 8, conical block 83 have with the conical surface complex conical surface of fixing base 5, two conical surfaces are the sealed faying face of opening and closing valve, compress sealing washer 6 when two conical surfaces contact, further strengthen the sealing performance between two conical surfaces, it is thorough to seal.
The valve rod body 8 is provided with a valve rod oil passage 84 arranged along the axial direction and an oil inlet 82 arranged along the radial direction, the oil inlet 82 is positioned above the valve rod oil passage 84 and below the conical block 83, and the valve rod oil passage 84 is communicated with the oil inlet 82. The pressure lever 2 is provided with a pressure lever oil passage 25 communicated with the valve lever oil passage 84, and an opening at the lower end of the pressure lever oil passage 25 is an oil outlet of the on-off valve.
As shown collectively in fig. 2, 3, 4 and 6, the elevation structure includes a guide rib 32, a pressing bar saw tooth and a locking saw tooth.
The fixed surface of 3 internal surfaces of uide bushing is equipped with the direction muscle 32 that three circumference equipartitions set up, and direction muscle 32 is on a parallel with the axial setting, and the upper end of direction muscle 32 is equipped with direction muscle guide inclined plane 33.
The depression bar sawtooth is equipped with three sets, three sets of depression bar sawtooth circumference equipartitions in the upper end of depression bar 2, depression bar sawtooth seat 23 is located to the depression bar sawtooth, depression bar sawtooth seat 23 is fixed in depression bar 2, is equipped with depression bar guide way 24 between the adjacent depression bar sawtooth, and depression bar 2 is located uide bushing 3, depression bar guide way 24 all the time with direction muscle 32 sliding connection, the depression bar sawtooth includes first depression bar guide inclined plane 21 and second depression bar guide inclined plane 22.
The locking sawtooth is equipped with three sets, and three sets of locking sawtooth circumference equipartitions are equipped with locking guide way 43 in the lower extreme of locking 4 between the adjacent locking sawtooth, and locking guide way 43 can with direction muscle 32 sliding connection, and the locking sawtooth all leads inclined plane 41, the spacing face 44 of locking and second locking guide inclined plane 42 including the first locking that sets up in order.
The number of the guide ribs 32, the number of the press rod sawteeth, the number of the press rod guide grooves 24, the number of the locking sawteeth and the number of the locking guide grooves 43 are equal, and the number of the guide ribs is not limited to three in practical application, and the first press rod guide inclined surface 21, the second press rod guide inclined surface 22, the first locking guide inclined surface 41, the second locking guide inclined surface 42 and the guide rib guide inclined surface 33 are in the same inclination direction. The circumferential widths of the presser bar guide groove 24 and the lock guide groove 43 are equal to or slightly larger than the circumferential width of the guide rib 32.
As shown in fig. 4 and 6, a limiting structure is arranged between the pressure lever 2 and the guide sleeve 3, the limiting structure comprises a guide sleeve limiting ring 34 arranged on the inner surface of the lower end of the guide sleeve 3, and the outer diameter of the pressure lever serrated seat 23 is larger than the inner diameter of the guide sleeve limiting ring 34 to prevent the pressure lever 2 from separating from the guide sleeve 3.
As shown in fig. 4, when the opening/closing valve is closed, the coil spring 7 is in a compressed state, the coil spring 7 pushes the valve rod body 8 downward, the conical surface of the conical block 83 contacts with the conical surface of the valve rod body 8, the two conical surfaces press the seal ring 6, the oil inlet 82 is not communicated with the inner cavity of the oil pan 1, and the engine oil is not discharged. At this time, as shown in fig. 5, the first pressure lever guide inclined surface 21 contacts with the second locking guide inclined surface 42, the second pressure lever guide inclined surface 22 contacts with the first locking guide inclined surface 41, the pressure lever serrated seat 23 contacts with the guide sleeve stopper ring 34, the guide rib 32 is simultaneously located in the pressure lever guide groove 24 and the locking guide groove 43, the lock member 4 cannot rotate and can move up and down, the valve stem body 8 cannot rotate and move up and down, so that the conical surface of the tapered block 83 and the conical surface of the valve stem body 8 are kept in close contact, and the opening and closing valve is in a stable closed state.
As shown in fig. 8, when the pressure lever 2 is pressed upward, the pressure lever 2 pushes the locking member 4 to move upward along the guide rib 32, the locking member 4 drives the valve rod body 8 to move upward, the conical surface of the conical block 83 and the conical surface of the valve rod body 8 start to separate, when the lower end of the first locking guide inclined surface 41 is flush with the upper end of the guide rib guide inclined surface 33, under the action of the coil spring 7, the first locking guide inclined surface 41 starts to contact with the guide rib guide inclined surface 33, the second locking guide inclined surface 42 contacts with the first pressure lever guide inclined surface 21, the first locking guide inclined surface 41 slides downward along the second pressure lever guide inclined surface 22 and the guide rib guide inclined surface 33, the second locking guide inclined surface 42 slides downward along the first pressure lever guide inclined surface 21, and the locking member 4 drives the valve rod body 8 to move downward while rotating; as shown in fig. 7, when the lock stopper surface 44 comes into contact with the guide rib 32, the lock member 4 cannot rotate nor move up and down, and the opening/closing valve is in a stable open state.
As shown in fig. 6, when the opening/closing valve is opened, the conical surface of the tapered block 83 is separated from the conical surface of the valve rod body 8, the oil inlet 82 is communicated with the inner cavity of the oil pan 1, and the engine oil enters the valve rod oil passage 84 from the oil inlet 82 and flows out from the oil outlet at the lower end of the compression rod oil passage 25, so that the engine oil is discharged.
As shown in fig. 9, when the pressure lever 2 is pressed upward again, the first locking guide inclined surface 41 contacts with the first pressure lever guide inclined surface 21, the second locking guide inclined surface 42 contacts with the second pressure lever guide inclined surface 22, the pressure lever 2 pushes the locking member 4 to move upward, the locking member 4 drives the valve rod body 8 to move upward, when the lower end of the second locking guide inclined surface 42 is flush with the upper end of the guide rib guide inclined surface 33, under the action of the coil spring 7, the first locking guide inclined surface 41 slides downward along the first pressure lever guide inclined surface 21, the second locking guide inclined surface 42 slides downward along the guide rib guide inclined surface 33 and the second pressure lever guide inclined surface 22, and the locking member 4 drives the valve rod body 8 to move downward while rotating; when the guide rib 32 is located in the locking guide groove 43, the locking piece 4 stops rotating, at this time, the coil spring 7 pushes the valve rod body 8 to move downwards, when the first locking guide inclined surface 41 contacts with the second pressure rod guide inclined surface 22, the second locking guide inclined surface 42 contacts with the first pressure rod guide inclined surface 21, and when the pressure rod serrated seat 23 contacts with the guide sleeve limiting ring 34, the conical surface of the conical block 83 closely contacts with the conical surface of the valve rod body 8, the opening and closing valve is in a stable closing state, and oil drainage is finished.
When the lifting structure is skillfully used for lifting, the valve rod body 8 is driven to move, so that the opening or closing function of the opening and closing valve is realized, and when the pressing rod 2 is pressed, the conical sealing surface is separated and maintained, so that the engine oil discharging action is realized; when pressing depression bar 2 once more, two conical sealing surface combine closely, and the oil drain is ended, and whole process need not twist on and unscrew the oil drain plug, and easy operation is convenient, is convenient for operate in narrow space, and the oil drain easy operation is high-efficient.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (10)
1. Quick oil drain device of oil pan includes: the oil pan is provided with an oil discharge port, and is characterized in that the oil pan rapid oil discharge device also comprises an opening and closing valve, the on-off valve is arranged at the oil discharge port and comprises a valve body, a valve rod and a hollow pressure rod, the valve body is fixed on the oil pan, the valve rod and the pressure rod are arranged in the valve body, two ends of the valve body are respectively provided with an opening, the valve rod is positioned in the upper end opening of the valve body, the pressure lever is positioned in the lower end opening of the valve body, an elastic piece is arranged between the valve rod and the valve body, the valve rod is provided with a valve rod oil duct, the press rod is provided with a press rod oil duct communicated with the valve rod oil duct, and a lifting structure is arranged among the valve body, the valve rod and the pressure rod, and the valve rod can move upwards or downwards by pressing the pressure rod so as to realize the opening and closing actions of the opening and closing valve.
2. The quick oil drain device for the oil pan according to claim 1, wherein the lifting structure comprises a guide rib, a press rod saw tooth and a locking saw tooth;
the guide ribs are arranged in parallel to the axial direction, a plurality of guide ribs are uniformly distributed and fixed on the inner surface of the lower end of the valve body in the circumferential direction, and the upper end of each guide rib is provided with a guide rib guide inclined plane;
the pressing rod sawteeth are provided with a plurality of sets of pressing rod sawteeth which are uniformly distributed at the upper end of the pressing rod in the circumferential direction, a pressing rod guide groove is formed between every two adjacent pressing rod sawteeth, the pressing rod guide sleeve is connected with the guide rib in a sliding mode, and each pressing rod sawtooth comprises a first pressing rod guide inclined surface and a second pressing rod guide inclined surface;
the locking sawteeth are provided with a plurality of sets of locking sawteeth which are evenly distributed at the lower end of the valve rod in the circumferential direction, a locking guide groove is arranged between every two adjacent locking sawteeth and can be in sliding connection with the guide rib, and each set of locking sawteeth comprises a first locking guide inclined plane, a locking limiting plane and a second locking guide inclined plane which are sequentially arranged;
the guide rib, the depression bar sawtooth, the depression bar guide way locking sawtooth with the locking guide way number equals, first locking guide inclined plane, second locking guide inclined plane first depression bar guide inclined plane second depression bar guide inclined plane with the direction muscle guide inclined plane incline direction is unanimous.
3. The quick oil drain device of the oil pan according to claim 2, wherein the valve body comprises a fixed seat and a guide sleeve fixed below the fixed seat, the fixed seat is fixed on the oil pan, the guide rib is arranged on the guide sleeve, and the pressing rod is positioned in the guide sleeve.
4. The quick oil drain device for the oil pan according to claim 3, wherein a limiting structure is arranged between the pressure lever and the guide sleeve, the limiting structure comprises a guide sleeve limiting ring arranged on the inner surface of the lower end of the guide sleeve, the pressure lever sawteeth are arranged on a pressure lever sawteeth seat, the pressure lever sawteeth seat radially protrudes out of the pressure lever, and the outer diameter of the pressure lever sawteeth seat is larger than the inner diameter of the guide sleeve limiting ring.
5. The quick oil drain pan device according to claim 3, wherein the valve stem comprises a valve stem body and a locking member fixed to a lower end of the valve stem body, and the locking serrations are provided on the locking member.
6. The rapid oil drain pan device according to claim 5, wherein the valve stem body is fixedly provided with a valve stem flange, and the locking member is fixedly connected with the valve stem flange.
7. The quick oil drain device for the oil pan according to claim 6, wherein a fixing seat limiting ring is arranged on the inner surface of the fixing seat, and the elastic member is positioned between the fixing seat limiting ring and the valve rod flange.
8. The oil pan quick oil drain device according to claim 7, wherein the fixing seat conical surface is arranged on the upper surface of the fixing seat, and the valve rod conical surface matched with the fixing seat conical surface is arranged at the upper end of the valve rod body.
9. The quick oil drain device of the oil pan according to claim 8, wherein the conical surface of the fixing seat is provided with a sealing groove, and a sealing ring is arranged in the sealing groove.
10. The quick oil drain device of the oil pan according to claim 8, wherein the elastic member is a coil spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201922448565.7U CN211820749U (en) | 2019-12-28 | 2019-12-28 | Quick oil drain device of oil pan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201922448565.7U CN211820749U (en) | 2019-12-28 | 2019-12-28 | Quick oil drain device of oil pan |
Publications (1)
Publication Number | Publication Date |
---|---|
CN211820749U true CN211820749U (en) | 2020-10-30 |
Family
ID=73041541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201922448565.7U Active CN211820749U (en) | 2019-12-28 | 2019-12-28 | Quick oil drain device of oil pan |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN211820749U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117021156A (en) * | 2023-10-09 | 2023-11-10 | 之江实验室 | Device for robot limb assembly |
CN119426909A (en) * | 2025-01-13 | 2025-02-14 | 蓬莱巨涛海洋工程重工有限公司 | Special welding equipment for annular welding seam |
-
2019
- 2019-12-28 CN CN201922448565.7U patent/CN211820749U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117021156A (en) * | 2023-10-09 | 2023-11-10 | 之江实验室 | Device for robot limb assembly |
CN117021156B (en) * | 2023-10-09 | 2024-01-16 | 之江实验室 | Device for robot limb assembly |
CN119426909A (en) * | 2025-01-13 | 2025-02-14 | 蓬莱巨涛海洋工程重工有限公司 | Special welding equipment for annular welding seam |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN211820749U (en) | Quick oil drain device of oil pan | |
CN100503145C (en) | Device for assembling and disassembling gas valve seat on the cylinder cap | |
CN110408756A (en) | Rotary Hole Cold Extrusion Strengthening Device and Method | |
CN109621506A (en) | A kind of water purifier | |
CN109899534B (en) | Butterfly valve | |
CN203926976U (en) | Delay water faucet | |
CN109892117B (en) | Elastic meshing type straw compression double-roller | |
CN204739348U (en) | Female connection ware | |
CN204459223U (en) | High Temperature High Pressure double-flashboard power station sluice valve | |
CN216888087U (en) | Internal pushing type one-key pushing sealing structure for elastic sealing sleeve | |
CN215371070U (en) | Closed positive circulation plug valve | |
CN212420435U (en) | a pressing device | |
CN113769900A (en) | Disc type separator rotary drum part detaching tool | |
AT414269B (en) | DEVICE FOR COMPACING GASES | |
CN2154138Y (en) | Hydraulic ring-groove riveter without ejector pin | |
CN2334534Y (en) | Built-in automatic tool clamping spindle for machine tools | |
EP3452704A1 (en) | Two-stroke internal combustion engine | |
CN200975292Y (en) | Improved structural of engines and compressor | |
CN113513619A (en) | Dual-adjustment inflating clamp for refrigerator and inflating method of refrigerator | |
CN213018254U (en) | Electric stove cooling pipe connection structure | |
CN113864463A (en) | Air inlet and exhaust combined type air valve | |
CN108685691B (en) | Double-screw rod lifting and extruding structure | |
CN219747845U (en) | An installation tool for steel core sealing rings | |
CN221568420U (en) | Multi-stage throttling adjustable blanking plug | |
CN110778744A (en) | Fuel oil blocking device for quickly dismounting and mounting internal combustion engine maintenance |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |