CN211738373U - Crankcase breather pipe for engine - Google Patents
Crankcase breather pipe for engine Download PDFInfo
- Publication number
- CN211738373U CN211738373U CN202020162011.0U CN202020162011U CN211738373U CN 211738373 U CN211738373 U CN 211738373U CN 202020162011 U CN202020162011 U CN 202020162011U CN 211738373 U CN211738373 U CN 211738373U
- Authority
- CN
- China
- Prior art keywords
- connector
- joint
- bamboo
- sealing groove
- bamboo joint
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000011425 bamboo Substances 0.000 claims abstract description 22
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 21
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 21
- 241001330002 Bambuseae Species 0.000 claims abstract description 21
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 21
- 239000004677 Nylon Substances 0.000 claims abstract description 14
- 229920001778 nylon Polymers 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 235000019994 cava Nutrition 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a crankcase breather pipe for engine, including quick-insert female joint and nylon tube, quick-insert female joint and nylon tube one end connection, still include the non-standard joint of connecting with the other end connection of nylon tube, non-standard joint includes cylindrical connector and bamboo joint connector, the connection of bamboo joint connector slope is in the upper end of cylindrical connector, the bamboo joint connector internal diameter equals and link up each other with cylindrical connector internal diameter size, the outer surface of cylindrical connector inwards caves in and is equipped with annular seal groove I, be equipped with an O type sealing washer I in the seal groove I, the outer surface of the columnar connector on the upper side of the sealing groove I is provided with a connecting flange in a protruding mode, the connecting flange is provided with a connecting hole, the outer surface of the bamboo joint connector is provided with bamboo-joint-shaped convex teeth, the outer surface of the bamboo joint connector is inwards sunken to be provided with a circular sealing groove II, and an O-shaped sealing ring II is arranged in the sealing groove II. The utility model discloses can effectively reduction in production cost.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to crankcase breather pipe for engine.
Background
The function of the crankcase breather pipe is to allow fresh air to enter the crankcase through the crankcase breather pipe when the crankcase is at a negative pressure. When the crankcase is at positive pressure, blow-by gas from the crankcase may be introduced into the intake manifold through the PCV tube for re-combustion.
The existing crankcase breather pipe is a rubber pipe in the state of the fifth stage of emission regulation (the state fifth stage of the emission standard of pollutants for motor vehicles), the breather pipe on the cylinder head cover is connected with the breather pipe on the air-filtered bellows through the rubber pipe, the two ends of the rubber pipe are fixed by clamps, and the looseness easily occurs when a user uses the crankcase breather pipe, so that the problem of atmosphere pollution caused by oil vapor leakage is caused. At present, the state of the emission regulation at the sixth stage (the national emission standard of pollutants for motor vehicles) is changed into a quick insertion pipe 2, as shown in fig. 1, quick insertion female connectors 1 are arranged at both ends of the quick insertion pipe 2, and the quick insertion female connectors 1 are connected with corresponding male connectors 5.
According to the fifth stage of the arrangement emission regulation (the pollutant emission standard of motor vehicles in the fifth stage of the country), the breather pipe 3 on the cylinder head cover 4 adopts a bent steel pipe, as shown in fig. 2, the steel pipe is pressed into the air inlet cylinder head cover 4, the steel pipe and the cylinder head cover are in interference fit, and sealant is coated during pressing. Emission regulation the sixth stage (national sixth stage vehicle pollutant emission standard) is changed to the male joint 5, as shown in fig. 3, the steel pipe surface is formed with the bead 6 with the required dimension, which causes the problems of difficult manufacture and more cost increase.
Disclosure of Invention
The utility model aims at the defect that above-mentioned prior art exists, provide a crankcase breather pipe for engine that can effectively reduction in production cost.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a crankcase breather pipe for an engine comprises a quick-insert female joint and a nylon pipe, wherein the quick-insert female joint is connected with one end part of the nylon pipe, the crankcase breather pipe also comprises a non-standard joint connected with the other end part of the nylon pipe, the non-standard joint comprises a columnar connector and a bamboo joint connector, the bamboo joint connector is obliquely connected with the upper end of the columnar connector, the inner diameter of the bamboo joint connector is equal to the inner diameter of the columnar connector in size and is communicated with the inner diameter of the columnar connector, an annular sealing groove I is inwards sunken on the outer surface of the columnar connector, an O-shaped sealing ring I is arranged in the sealing groove I, the outer surface of the columnar connector on the upper side of the sealing groove I is provided with a connecting flange in a protruding mode, the connecting flange is provided with a connecting hole, the outer surface of the bamboo joint connector is provided with bamboo-joint-shaped convex teeth, the outer surface of the bamboo joint connector is inwards sunken to be provided with a circular sealing groove II, and an O-shaped sealing ring II is arranged in the sealing groove II.
The utility model discloses crankcase breather pipe for engine has following beneficial effect: to the problem that the male joint on the cylinder head cover is difficult to manufacture and the cost is increased, the quick-insertion female joint which is connected with one end of the cylinder head cover by the crankcase breather pipe is changed into a non-standard joint, the male joint is cancelled, the non-standard joint can be directly installed and fixed on the cylinder head cover by bolts through a connecting flange, the limitation that the two ends of the conventional quick-insertion pipe are standard quick-insertion female joints (the quick-insertion female joint can be disassembled or the quick-insertion female joint can not be disassembled) is thoroughly abandoned, relevant matched parts are reduced, the arrangement of an engine is simplified, and the cost is greatly reduced.
The crankcase ventilation tube for an engine according to the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic illustration of a prior art crankcase breather tube for an engine;
FIG. 2 is a partial view of a breather tube connected to a cylinder head cover;
FIG. 3 is a partial view of the male fitting connected to the cylinder head cover;
FIG. 4 is a schematic view of a crankcase breather tube for an engine according to the present invention;
FIG. 5 is an enlarged cross-sectional view of a non-standard joint of a crankcase breather tube for an engine according to the present invention;
the reference numbers illustrate: 1-quick inserting female joint, 2-quick inserting pipe, 3-vent pipe, 4-cylinder cover, 5-male joint, 6-convex rib, 7-nylon pipe, 8-non-standard joint, 9-columnar joint, 10-connecting flange, 11-connecting hole, 12-O type sealing ring II, 13-sealing groove II, 14-bamboo joint, 15-sealing groove I and 16-O type sealing ring I.
Detailed Description
As shown in fig. 3 and 4, the crankcase breather pipe for an engine of the present invention includes a quick-insertion female joint 1 and a nylon pipe 7, wherein the quick-insertion female joint 1 is connected with one end of the nylon pipe 7. The utility model discloses crankcase breather pipe for engine still includes the non-standard connector 8 with 7 other end connection of nylon tube. The non-standard connector 8 comprises a cylindrical connector 9 and a bamboo joint connector 14, the bamboo joint connector 14 is obliquely connected to the upper end of the cylindrical connector 9, and the bamboo joint connector 14 is connected with the end part of the nylon pipe 7 far away from the quick-insertion female connector 1. The inner diameter of the bamboo joint connector 14 is equal to that of the columnar connector 9 in size and is communicated with the same. The outer surface of the columnar connector 9 is inwards sunken to be provided with a circular sealing groove I15, and an O-shaped sealing ring I16 is arranged in the sealing groove I15. A connecting flange 10 is arranged on the outer surface of the columnar connector 9 on the upper side of the sealing groove I15 in a protruding mode, and a connecting hole 11 is formed in the connecting flange 10. The outer surface of the bamboo joint connector 14 is provided with bamboo-shaped convex teeth. The outer surface of the bamboo joint connector 14 is inwards sunken to be provided with a circular sealing groove II 13, and an O-shaped sealing ring II 12 is arranged in the sealing groove II 13.
During operation, the quick-insertion female joint 1 of the crankcase breather pipe for the engine is connected with the empty post-filter bellows, and the non-standard joint 8 at the other end is connected with the cylinder head cover. The male joint 5 is eliminated, and the non-standard joint 8 can be directly installed and fixed on the cylinder cover through the connecting hole 11 of the connecting flange 10 by using a bolt, so that the arrangement of an engine is simplified, and the cost is greatly reduced.
The above embodiments are only preferred embodiments of the present invention, the structure of the present invention is not limited to the forms illustrated in the above embodiments, and any modifications, equivalent substitutions and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (1)
1. A crankcase breather pipe for an engine comprises a quick-insertion female connector (1) and a nylon pipe (7), the quick-insertion female connector (1) is connected with one end of the nylon pipe (7), the crankcase breather pipe is characterized by further comprising a non-standard connector (8) connected with the other end of the nylon pipe (7), the non-standard connector (8) comprises a cylindrical connector (9) and a bamboo joint connector (14), the bamboo joint connector (14) is obliquely connected to the upper end of the cylindrical connector (9), the inner diameter of the bamboo joint connector (14) is equal to the inner diameter of the cylindrical connector (9) in size and is communicated with the cylindrical connector (9), the outer surface of the cylindrical connector (9) is inwards sunken to be provided with a circular sealing groove I (15), an O-shaped sealing ring I (16) is arranged in the sealing groove I (15), a connecting flange (10) is convexly arranged on the outer surface of the cylindrical connector (9) on the upper side of the sealing groove I (15, the outer surface of the bamboo joint connector (14) is provided with bamboo-shaped convex teeth, the outer surface of the bamboo joint connector (14) is inwards sunken to be provided with a circular sealing groove II (13), and an O-shaped sealing ring II (12) is arranged in the sealing groove II (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020162011.0U CN211738373U (en) | 2020-02-11 | 2020-02-11 | Crankcase breather pipe for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020162011.0U CN211738373U (en) | 2020-02-11 | 2020-02-11 | Crankcase breather pipe for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211738373U true CN211738373U (en) | 2020-10-23 |
Family
ID=72879224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020162011.0U Expired - Fee Related CN211738373U (en) | 2020-02-11 | 2020-02-11 | Crankcase breather pipe for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211738373U (en) |
-
2020
- 2020-02-11 CN CN202020162011.0U patent/CN211738373U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |