CN202991181U - Machine oil filler cap assembly - Google Patents
Machine oil filler cap assembly Download PDFInfo
- Publication number
- CN202991181U CN202991181U CN 201220704016 CN201220704016U CN202991181U CN 202991181 U CN202991181 U CN 202991181U CN 201220704016 CN201220704016 CN 201220704016 CN 201220704016 U CN201220704016 U CN 201220704016U CN 202991181 U CN202991181 U CN 202991181U
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- China
- Prior art keywords
- valve casing
- casing section
- spool
- oil filler
- cap assembly
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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.)
- Expired - Fee Related
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model belongs to the automobile engine fittings field, and particularly relates to a machine oil filler cap assembly. The machine oil filler cap assembly is of one-way valve structure and at least comprises an upper cap, a valve casing portion and a valve plug. The valve casing portion is barrel-shaped and a drill way penetrating through the bottom wall is reserved at the bottom, the valve plug is elastically matched with the upper cap and/or the valve casing portion, and the elastic direction is set parallel to or intersected with the axial direction of the valve casing portion, the bottom of the valve plug extends to the bottom wall of the valve casing portion and is in abutted joint with a surface formed between the bottom of the valve plug and the drill way above the valve plug, the surface is of an open-and-close type and moves along the elastic direction of the bottom of the valve plug, and a gap is formed between the valve plug and the inner wall of the valve casing portion, and extends to communicate with outer air environment. The one-way valve mechanism is assembled on the basis of the machine oil filler cap assembly, so that the structure of machine oil filler cap assembly is simple and convenient to use; problems such as engine internal pressure increase caused by a driving through pipe being blocked by ice in a pipeline, consequentially oil seal falling off, and oil penetration on sealing faces can be effectively avoided, and working safety of the engine and operators is effectively guaranteed.
Description
Technical field
The utility model belongs to the automobile engine accessory field, is specifically related to a kind of oil filler cap assembly.
Background technique
When engine operation, always some inflammable mixture and waste gas in piston ring channels to crankcase, channel to and will make machine oil thinning after gasoline vapour in crankcase condenses, performance depreciation.Waste gas contains water vapour and sulfur dioxide, and water vapour condenses in and forms foam in machine oil, destroys engine oil supplying, and this phenomenon is particularly serious in the winter time; Sulfur dioxide is met water and is generated sulphurous acid, and sulphurous acid runs into airborne oxygen and generates sulfuric acid, and the appearance of these acidic materials not only makes machine oil rotten, and part is corroded.Because inflammable mixture and waste gas channel in crankcase, the pressure in crankcase will increase, and machine oil can ooze out and run off from crank shaft oil seal, crankcase liner etc., and the machine oil steam that is lost in atmosphere can strengthen motor to the pollution of atmosphere.
In the case, engine crankshaft ventilation system arises at the historic moment, and just is used in widely subsequently on existing vehicle.Its crankcase ventilation comprises natural ventilation and forced ventilation, and the modern gasoline motor often adopts the positive drive type crankcase ventilation, claims again the PCV system.When engine operation, intake depression attracts fresh air to enter valve mechanism cover through air-strainer, air hose, then enters crankcase by the duct on cylinder head and body; The mixing of fresh air and crank case gases enters suction tude by cylinder head cover, PCV valve and crankcase gas hose body in crankcase, enters the firing chamber finally by intake valve and burns.The operating mode different according to motor, the aperture of PCV valve is different, and the air quantity of passing through is also different, thus crankcase ventilation is controlled.
Yet, engine crankshaft ventilation system is bringing in a large number simultaneously easily, the defective of its existence also becomes increasingly conspicuous: when working than low country or under the medium low temperature environment of running at high speed in the winter time in temperature, above-mentioned crankcase gas hose body leaves this segment distance temperature of motor sharply to be reduced, the steam of motor arrives in the flexible pipe process and becomes water, be subject to again the impact that regional temperature or the Air of running at high speed flow, the obstruction flexible pipe that will freeze of the water in flexible pipe.In pipe, in a single day moisture congeal into ice, and directly causes it can't normally discharge the water vapour of the generation in cylinder body and cause the crankcase ventilation system pipeline blockage, ventilates not smooth, and the motor internal pressure raises; What is more, and during the limit that can bear higher than crank shaft oil seal and each sealing surface when the motor internal pressure, oil impregnate appears in oil sealing and each sealing surface, and when serious, crank shaft oil seal comes off, and motor produces to be scrapped, and causes the personal safety problem thereupon.
Summary of the invention
The purpose of this utility model is to provide a kind of oil filler cap assembly simple in structure and easy to use, can effectively avoid engine interior pressure rising problem, its reliable and stable work.
For achieving the above object, the utility model has adopted following technological scheme: a kind of oil filler cap assembly, described oil filler cap assembly is one-way valve structures, comprise at least upper cover, be positioned at upper cover below be used for oil filler between consist of the spool of pegging graft the airtight valve casing section that coordinates and being arranged at valve casing section; Described valve casing section profile is cylinder-shaped and its bottom offers the duct of running through diapire, consist of resilient engagement and its elasticity direction between described spool and upper cover and/or valve casing section parallel or intersect at the axial direction setting of valve casing section, the spool bottom to valve casing section's diapire place postpone and with its upper duct between form the face of the able to turn on or off formula of moving along its elasticity direction against coordinating; Leaving gap and this gap between described spool and valve casing section inwall postpones and is communicated with the atmosphere outside setting.
The beneficial effects of the utility model are: pass through said structure, also i.e. integrated check valve mechanism again on the basis of original cap, when engine interior pressure during higher than atmospheric pressure and spring force sum, oil filler covers one-way valve and is forced to open to realize pressure release, thereby the high-pressure water vapor in engine block is discharged; And do not work or internal body pressure when being in normal level when motor, oil filler covers one-way valve and closes voluntarily to realize its original sealing function.The own elastic force decision that its cracking pressure is carried by spool, also cocoa satisfies different engine demand.The utility model is simple in structure and be convenient to practicality; can effectively avoid increasing and thing followed oil sealing comes off and sealing surface oil impregnate situation because pipeline freeze to stop up to press in the motor that factors such as driving siphunculus occurs, thereby effectively protect motor and personal work safety.
Description of drawings
Fig. 1 is assembling condition structural representation between the utility model and oil filler;
Fig. 2 is structural representation of the present utility model;
Fig. 3-4 are the STRUCTURE DECOMPOSITION figure of each parts on the utility model;
Fig. 5 is the plan view of spool.
Embodiment
A kind of oil filler cap assembly, described oil filler cap assembly is one-way valve structures, comprise at least upper cover 10, be positioned at upper cover 10 belows be used for oil filler between consist of the spool 30 of pegging graft the airtight valve casing section that coordinates 20 and being arranged at valve casing section 20; Described valve casing section 20 profiles are cylinder-shaped and its bottom offers the duct 21 of running through diapire, 20, described spool 30 and upper cover 10 and/or valve casing section consist of resilient engagement and its elasticity direction parallel or intersect at the 20 axial direction settings of valve casing section, spool 30 bottoms postpone to valve casing section 20 diapire places and the face of the able to turn on or off formula of moving along its elasticity direction with its upper 21, duct formation against coordinating; Leaving gap and this gap between described spool 30 and valve casing section 20 inwalls postpones and is communicated with the atmosphere outside setting.
The utility model structure is as shown in Fig. 1-5, and in fact, the utility model is integrated by original cap and one-way valve mechanism are carried out, thereby makes cap itself possess one-way conduction and the reverse cutoff function of one-way valve.During higher than atmospheric pressure and spool 30 action elastic force sum, oil filler covers one-way valve and is forced to open to realize pressure release, thereby the high-pressure water vapor in engine block is discharged when engine interior pressure; And do not work or internal body pressure when being in normal level when motor, oil filler covers one-way valve and closes voluntarily to realize its original sealing function.Certainly, for guaranteeing the performance characteristic of above-mentioned spool 30 own, the oil filler cap assembly also comprises be used to the spring section 40 that realizes spool 30 switching motions herein, postpone downwards along valve casing section 20 axis and be provided with column or tubular lug boss 11 in described upper cover 10 bottoms, described spool 30 profiles are multidiameter shaft shape or the ladder tubular that small end makes progress, and described spring section 40 two ends are socketed on respectively lug boss 11 outer walls and spool 30 small end outer wall places and corresponding to lug boss 11 roots and spool 30 shoulder place's settings; The closing on of lug boss 11 and spool 30 has the gap for the 40 elasticity activities of spring section between end face, or consists of the elasticity of sliding between the inwall of tubular lug boss 11 and the corresponding matching of ladder tubular spool 30 and outer wall and be socketed and coordinate.Like this, by arranging spring section 40 on spool 30, the elastic force of its cracking pressure is carried by spool 30 spring section 40 itself determine; According to the different demands of different motors for its internal pressure, spring section 40 that can be by adopting respective model finally guarantees working accurately and reliably of spool 30 to realize the predetermined cracking pressure of spool 30; The setting of the activity surplus of spring section 30 own, be lug boss 11 by as shown in Figure 4 and spool 30 close on gap between end face or the incompatible realization of sliding inserting between the two, to guarantee the normal effectively work of its one-way valve member.
Further, as shown in Fig. 3-5, the large end circumferential profile of multidiameter shaft shape or ladder tubular spool 30 is gear shape, its large end maximum outside diameter and identical setting of valve casing section's 20 inner chamber internal diameters.The large end of spool 30 of arranging by the said gear shape, thus realized on the one hand with valve casing section 20 inwalls between accurate guiding coordinate, thereby guaranteed that the direction of action of spool 30 when pressurized moves is stable; On the other hand, because the initial aim of one-way valve structures just is that pressure release is ventilative, the utility model is by said gear shape spool 30, when occuring closely accurately to slide between spool 30 and valve casing section inwall, tooth on gear shape spool 30 as shown in Figure 4 and tooth gap have consisted of the pressure relief opening that is used for pressure release, thereby in the engine interior imbalance of pressure and when too high, its pressurized gas can be by internal body gap through between spool 30 small end and valve casing section 20 inwalls, and finally drains in atmosphere outside.
As further preferred version of the present utility model: described oil filler cap assembly also comprises the sealing bed course 50 that is fixed in spool 30 outer wall places, bottom, sealing bed course 50 diameters consist of sealed type against relation greater than duct 21 diameter settings between described sealing bed course 50 and valve casing section 20 ducts, inwall place, bottom.In fact, when normal the use, itself spool 30 namely can guarantee the accurate sealability for duct 11, arranges bumps and closely cooperates etc. with duct 21 inwalls as spool 30 bottom end places.And as shown in Figure 3-4, arrange separately sealing bed course 50 herein, for further strengthening its sealability, can adopt during use such as the good Sealing of the sealabilities such as rubber gasket, or socket or directly be bonded in spool 30 bottom position places, thereby guarantee the good seal performance of the cap when motor is not worked and even worked.And considering sealability between valve casing section's 30 outer walls and oil filler, there is O-ring seals 60 in valve casing section 20 at its small end outer wall place ring set herein, thereby guarantees the sealability of normal cylinder cap.
Further, the exhaust passageway of one-way valve structures is done following restriction herein: as shown in Figure 3-4, described valve casing section 20 periphery walls are multidiameter shaft shape and its large end and close on the 20 opening settings of valve casing section, consist of between its shaft shoulder place and oil filler end face against the formula location to coordinate; Described valve casing section 20 is provided with air vent 22 at its opening, and described air vent 22 is communicated with spools 30 and valve casing section 20 inwall gaps and atmosphere outside settings; Described upper cover 10 bottoms are provided with for the annular projection 12 adaptive with valve casing section 20 opening portions, and on annular projection 12, corresponding air vent is furnished with gap slot 121; Between described valve casing section 20 opening portion end faces and these annular projection 12 end faces, the formation face supports box-like affixed the cooperation, and 121 of air vent 22 and gap slots one by one corresponding matching be configured for being communicated with the exhaust passage of spool 30 and valve casing section 20 inwall gaps and atmosphere outside.In other words, whole exhaust passageway of the present utility model is: pressurized gas such as water vapour etc. are by duct 21 places of engine interior to valve casing section 20 bottoms, pass through again the gap between valve casing section 20 inside and spool 30 outer walls, and the exhaust passage that finally consists of through air vent 22 and upper cover 10 place's gap slots 121 of valve casing section 20 openings drains in atmosphere outside, thereby realizes the decompression function of its one-way valve structures; Between valve casing section 20 opening portion end faces and these annular projection 12 end faces, the formation face supports box-like affixed the cooperation, actual with the time can by as vulcanize and the modes such as welding realize, thereby guarantee its firm fixed function between the two.
By said structure, the maximum pressure threshold values of predeterminable engine interior pressure during actual the use, this moment, its maximum pressure threshold values was the operating valve value that oil filler covers one-way valve structures; Freeze the factor such as obstructions and cause the increase of engine interior pressure when the crankcase ventilation system pipeline occurs, and when breaking through predetermined maximum pressure threshold values, this moment, engine interior pressure was namely higher than atmospheric pressure and spring section 40 elastic force sums, oil filler covers one-way valve and is forced to open to realize pressure release, thereby the high-pressure water vapor in engine block is discharged; And do not work or internal body pressure when being in normal level when motor, oil filler covers one-way valve and closes voluntarily to realize its original sealing function, with final complete sealing of the present utility model and the decompression function realized.
Claims (7)
1. oil filler cap assembly, it is characterized in that: described oil filler cap assembly is one-way valve structures, comprise at least upper cover (10), be positioned at upper cover (10) below be used for oil filler between consist of the spool (30) of pegging graft the airtight valve casing section (20) that coordinates and being arranged at valve casing section (20); Described valve casing section (20) profile is cylinder-shaped and its bottom offers the duct (21) of running through diapire, consist of resilient engagement and its elasticity direction between described spool (30) and upper cover (10) and/or valve casing section (20) parallel or intersect at valve casing section (20) axial direction setting, spool (30) bottom to valve casing section (20) diapire place postpone and with its upper duct (21) between form the face of the able to turn on or off formula of moving along its elasticity direction against coordinating; Leaving gap and this gap between described spool (30) and valve casing section (20) inwall postpones and is communicated with the atmosphere outside setting.
2. oil filler cap assembly according to claim 1, it is characterized in that: described oil filler cap assembly also comprises be used to the spring section (40) that realizes spool (30) switching motion, postpone downwards along valve casing section (20) axis and be provided with column or tubular lug boss (11) in described upper cover (10) bottom, described spool (30) profile is multidiameter shaft shape or the ladder tubular that small end makes progress, described spring section (40) two ends are socketed on respectively lug boss (11) outer wall and spool (30) small end outer wall place and corresponding to lug boss (11) root and spool (30) shoulder place setting, the closing on of lug boss (11) and spool (30) has the gap for spring section (40) elasticity activity between end face, or consists of the elasticity of sliding between the inwall of tubular lug boss (11) and the corresponding matching of ladder tubular spool (30) and outer wall and be socketed and coordinate.
3. oil filler cap assembly according to claim 2, it is characterized in that: the large end circumferential profile of described multidiameter shaft shape or ladder tubular spool (30) is gear shape, and its large end maximum outside diameter and valve casing section (20) inner chamber internal diameter coincide and arrange.
4. according to claim 1 and 2 or 3 described oil filler cap assemblies, it is characterized in that: described oil filler cap assembly also comprises the sealing bed course (50) that is fixed in outer wall place, spool (30) bottom, sealing bed course (50) diameter consists of sealed type against relation greater than duct (21) diameter setting between described sealing bed course (50) and duct, inwall place, valve casing section (20) bottom.
5. oil filler cap assembly according to claim 4, it is characterized in that: described valve casing section (20) periphery wall is the multidiameter shaft shape and valve casing section (20) opening setting is closed in its large end, consists of between its shaft shoulder place and oil filler end face against the formula location to coordinate; Described valve casing section (20) is provided with air vent (22) at its opening, and described air vent (22) is communicated with spool (30) and valve casing section (20) inwall gap and atmosphere outside setting.
6. oil filler cap assembly according to claim 5, it is characterized in that: described upper cover (10) bottom is provided with for the annular projection (12) adaptive with valve casing section (20) opening portion, and the upper corresponding air vent of annular projection (12) is furnished with gap slot (121); Between described valve casing section (20) opening portion end face and this annular projection (12) end face, the formation face supports box-like affixed the cooperation, and between air vent (22) and gap slot (121) one by one corresponding matching be configured for being communicated with the exhaust passage of spool (30) and valve casing section (20) inwall gap and atmosphere outside.
7. oil filler cap assembly according to claim 5 is characterized in that: there is O-ring seals (60) in described valve casing section (20) at its small end outer wall place ring set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704016 CN202991181U (en) | 2012-12-19 | 2012-12-19 | Machine oil filler cap assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704016 CN202991181U (en) | 2012-12-19 | 2012-12-19 | Machine oil filler cap assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991181U true CN202991181U (en) | 2013-06-12 |
Family
ID=48562371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220704016 Expired - Fee Related CN202991181U (en) | 2012-12-19 | 2012-12-19 | Machine oil filler cap assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991181U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016097A (en) * | 2012-12-19 | 2013-04-03 | 顺达（芜湖）汽车饰件有限公司 | Oil filler cap assembly |
| CN104165076A (en) * | 2014-08-25 | 2014-11-26 | 沈阳航天新光汽车零部件有限公司 | Assembling type engine oil adding opening cover for engine cover |
| CN107939475A (en) * | 2017-11-10 | 2018-04-20 | 江西昌河汽车有限责任公司 | Machine oil filler lid assembly and engine |
| CN108868956A (en) * | 2018-06-27 | 2018-11-23 | 安徽江淮汽车集团股份有限公司 | Prevent the oil filler assembly of lubricating oil emulsion |
-
2012
- 2012-12-19 CN CN 201220704016 patent/CN202991181U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016097A (en) * | 2012-12-19 | 2013-04-03 | 顺达（芜湖）汽车饰件有限公司 | Oil filler cap assembly |
| CN104165076A (en) * | 2014-08-25 | 2014-11-26 | 沈阳航天新光汽车零部件有限公司 | Assembling type engine oil adding opening cover for engine cover |
| CN104165076B (en) * | 2014-08-25 | 2016-05-11 | 沈阳航天新光汽车零部件有限公司 | A kind of assembled cap for engine bonnet |
| CN107939475A (en) * | 2017-11-10 | 2018-04-20 | 江西昌河汽车有限责任公司 | Machine oil filler lid assembly and engine |
| CN108868956A (en) * | 2018-06-27 | 2018-11-23 | 安徽江淮汽车集团股份有限公司 | Prevent the oil filler assembly of lubricating oil emulsion |
| CN108868956B (en) * | 2018-06-27 | 2019-12-03 | 安徽江淮汽车集团股份有限公司 | Prevent the oil filler assembly of lubricating oil emulsion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20201219 |