A kind of new Joining Structure between valve mechanism cover and cylinder head
Technical field
The present invention relates to valve mechanism cover technical fields, and in particular to the novel connection between a kind of valve mechanism cover and cylinder head
Structure.
Background technique
Cylinder cover is the housing covered on engine cylinder body, and first and most basic function are to cover simultaneously sealing cylinder
Machine oil is maintained at internal by lid, while by contaminants such as dirt and moistures in outer;Second function of valve mechanism cover be by
Machine oil and air insulated.Installation for valve mechanism cover, traditional mounting structure are to be placed in cylinder head and gas by gasket seal
It between cylinder head cover, is then tightened using bolt and achievees the purpose that be fixedly connected and seal, when engine operates normally, generate vibration
It is dynamic that bolt can be made to generate loosening, to occur leakage problem at gasket seal.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide the Novel connection between a kind of valve mechanism cover and cylinder head
Binding structure, valve mechanism cover is fastened in cylinder head by it by a kind of novel connecting component, and will not generate loosening, can effectively be prevented
Only leak, meanwhile, novel connecting component it is easy for installation, quick.
The solution to the technical problem of the present invention is as follows:
A kind of new Joining Structure between valve mechanism cover and cylinder head including cylinder head and is arranged in above cylinder head
Valve mechanism cover, the flange on the lower end outer wall of the valve mechanism cover are fixed on the upper end of cylinder head by multiple novel connecting components
In plane;
Multiple up-small and down-big stepped holes are formed on the upper transverse plane, form multiple and stepped hole on the flange
One-to-one first through hole;
The novel connecting component includes the connecting rod being vertically arranged, and the lower end of connecting rod is fixed with and its eccentric setting
Block, block sleeve in the lower end macropore of stepped hole, connecting rod pass through stepped hole upper end aperture and first through hole on stretch
For outlet sleeve in pressed seat, pressed seat forms the cylinder holes of side opening, piston is socketed in cylinder holes, piston is fixed on connection
The top of bar, piston, connecting rod and cylinder holes form oil pocket;Tank filler sleeve, interstitial hole and setting is formed on the piston to refuel
Transition tapered hole between hole and interstitial hole, sealed spheroid and pressure spring are socketed in interstitial hole, and the upside outer wall of sealed spheroid is pressed against
On the cone wall of transition tapered hole, pressure spring is clamped between sealed spheroid and the upper end of connecting rod;It is set on the side wall of the interstitial hole
There is the oil inlet of connection interstitial hole and oil pocket;Disk spring is equipped between the bottom surface of the pressed seat and the upper bottom surface of flange,
Disk spring sleeve is in connecting rod;It is equipped between the connecting rod and upper end aperture, first through hole and keeps set.
The holding set is made of two pieces of symmetrically arranged semicircular arc blocks, and the inner sidewall of semicircular arc block is pressed against connection
On the outer wall of bar, the lateral wall jack of semicircular arc block upper end aperture, first through hole inner wall on;The semicircular arc block
Upper end forms flanging, and flanging is pressed against on the upper bottom surface of flange.
The outer diameter of the block and the internal diameter clearance fit of both upper end aperture, first through hole.
The first seal groove is formed on the outer wall of the piston, is socketed with the first "O"-ring in the first seal groove, first
The outer wall of "O"-ring is pressed against on the inner wall of cylinder holes;
The pilot hole matched with connecting rod is formed in the lower wall of the pressed seat, is formed on the inner wall of pilot hole
Second seal groove is socketed with the second "O"-ring in the second seal groove, and the second "O"-ring is pressed against on the outer wall of connecting rod;
Form annular groove on the upper transverse plane, annular groove is located at the inside of stepped hole, in the annular groove
It is socketed with ring type seal, the upper side wall of ring type seal is pressed against on the bottom surface of flange.
Downwardly convex position limiting convex ring is formed on the bottom surface of the piston, the lower end surface of position limiting convex ring is lower than oil inlet
Bottom.
The threaded connection column to raise upward is formed on the upper bottom surface of the piston.
In-flanges is formed on the upper end inner wall of the cylinder holes, the internal diameter of in-flanges is less than the outer diameter of piston.
At 2-4,2-4 disk spring is superimposed the quantity of the disk spring with overlapping combined type;The dish
The inside of type spring is equipped with rubber guide sleeve, and rubber guide sleeve is socketed on connecting column.
Protrusion effect of the invention is: compared with prior art, it is tight by valve mechanism cover by a kind of novel connecting component
Gu in cylinder head, and loosening will not be generated, can effectively prevent leaking, meanwhile, novel connecting component it is easy for installation, fast
It is prompt.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is cross-sectional view of the Fig. 1 about A-A;
Fig. 3 is cross-sectional view of the Fig. 1 about B-B;
Fig. 4 is partial enlarged view of the Fig. 1 about C.
Specific embodiment
Embodiment, is shown in as shown in Figures 1 to 4, the new Joining Structure between a kind of valve mechanism cover and cylinder head, including gas
Cylinder cap 1 and the valve mechanism cover 2 that the top of cylinder head 1 is arranged in, the flange 21 on the lower end outer wall of the valve mechanism cover 2 pass through multiple
Novel connecting component 3 is fixed on the upper transverse plane 11 of cylinder head 1;
Multiple up-small and down-big stepped holes 12 are formed on the upper transverse plane 11, formed on the flange 21 it is multiple with
The one-to-one first through hole 22 of stepped hole 12;
The novel connecting component 3 includes the connecting rod 31 being vertically arranged, and the lower end of connecting rod 31 is fixed with and its bias
The block 32 of setting, for 32 sleeve of block in the lower end macropore 121 of stepped hole 12, the upper end that connecting rod 31 passes through stepped hole 12 is small
For the upper extension end sleeve of hole 122 and first through hole 22 in pressed seat 33, pressed seat 33 forms the cylinder holes 331 of side opening,
Piston 34 is socketed in cylinder holes 331, piston 34 is fixed on the top of connecting rod 31, piston 34, connecting rod 31 and the formation of cylinder holes 331
Oil pocket 300;Tank filler sleeve 341, interstitial hole 342 are formed on the piston 34 and are arranged between tank filler sleeve 341 and interstitial hole 342
Transition tapered hole 343, be socketed with sealed spheroid 35 and pressure spring 36 in interstitial hole 342, the upside outer wall of sealed spheroid 35 is pressed against
On the cone wall of transition tapered hole 343, pressure spring 36 is clamped between sealed spheroid 35 and the upper end of connecting rod 31;The interstitial hole 342
Side wall be equipped with connection interstitial hole 342 and oil pocket 300 oil inlet 344;The bottom surface of the pressed seat 33 and flange 21
Disk spring 37 is equipped between upper bottom surface, 37 sleeve of disk spring is in connecting rod 31;The connecting rod 31 and upper end aperture
121, it is equipped between first through hole 22 and keeps set 38.
Further, the holding set 38 is made of two pieces of symmetrically arranged semicircular arc blocks 381, semicircular arc block
381 inner sidewall is pressed against on the outer wall of connecting rod 31, and the lateral wall jack of semicircular arc block 381 is in upper end aperture 122, first
On the inner wall of through-hole 22;The upper end of the semicircular arc block 381 forms flanging 382, and flanging 382 is pressed against flange 21
On upper bottom surface.
Further, the outer diameter of the block 32 and the internal diameter gap of both upper end aperture 122, first through hole 22 are matched
It closes.
Further, the first seal groove is formed on the outer wall of the piston 34, is socketed in the first seal groove
The outer wall of one "O"-ring 41, the first "O"-ring 41 is pressed against on the inner wall of cylinder holes 331;
Form the pilot hole 332 matched with connecting rod 31 in the lower wall of the pressed seat 33, pilot hole 332 it is interior
The second seal groove is formed on wall, the second "O"-ring 42 is socketed in the second seal groove, and the second "O"-ring 42 is pressed against connection
On the outer wall of bar 31;
Annular groove 13 is formed on the upper transverse plane 11, annular groove 13 is located at the inside of stepped hole 12, the ring
Ring type seal 43 is socketed in connected in star 13, the upper side wall of ring type seal 43 is pressed against on the bottom surface of flange 21.
Further, downwardly convex position limiting convex ring 345, position limiting convex ring are formed on the bottom surface of the piston 34
345 lower end surface is lower than the bottom of oil inlet 344.
Further, the threaded connection column 346 to raise upward is formed on the upper bottom surface of the piston 34.
Further, in-flanges 333 is formed on the upper end inner wall of the cylinder holes 331, the internal diameter of in-flanges 333 is small
In the outer diameter of piston 34.
Further, the quantity of the disk spring 37 is at 2-4, and 2-4 disk spring 37 is to overlap combined type
It is superimposed;The inside of the disk spring 37 is equipped with rubber guide sleeve 44, and rubber guide sleeve 44 is socketed on connecting column 31.
Working principle: arc sealing ring 43 is embedded into annular groove 43 by the installation process of valve mechanism cover, first;The
Two, the first through hole 22 of valve mechanism cover 2 is aligned one by one with the stepped hole 12 of cylinder cap 1, valve mechanism cover 2 is then placed on cylinder cap
On 1 upper transverse plane 11;Third, the upper end aperture 122 by block 32 along first through hole 22 and stepped hole 12 extend into stepped hole
In 12 lower end macropore 121, it is inserted into holding set 38, connecting rod 31 and first through hole and stepped hole 12 are coaxial when keeping covering 38
Heart setting, the side of block 32 is extend into lower end macropore 121 at this time;4th, the interface of the oiling equipment of external environment passes through
It is threadedly coupled column 346 to connect with piston, hydraulic oil filling then is carried out to interstitial hole 342 from tank filler sleeve 341, it is hydraulic in interstitial hole
Oil is entered in oil pocket 300 by oil inlet 344, and hydraulic oil drives oil pocket 300 to become larger after entering oil pocket, and hydraulic oil is by pressed seat
Under to press to flange 21 mobile, to make disk spring 37 that certain elastic potential energy be kept to be clamped between pressed seat and flange, together
When hydraulic oil will be pushed up on piston 34, piston 34 by connecting rod 31 drive block 32 move up, the part of block 32 is pressed against step
To which block 32 is fixed on the step surface in hole, when the hydraulic oil that oil pocket 300 is added is added to certain pressure intensity, removes oiling and set
It is standby, at this point, preventing the liquid in oil pocket 300 on the cone wall that sealed spheroid 35 is pressed against transition tapered hole 343 under the action of pressure spring 36
Pressure oil is to outward leakage, so that the hydraulic pressure for having holding certain in oil pocket is kept, so that valve mechanism cover and cylinder head be fastened
Together, sealed spheroid 35 and pressure spring 36, which are equivalent to, plays the role of a check valve.
Finally, the above embodiments are only used to illustrate the present invention, and not limitation of the present invention, related technical field
Those of ordinary skill can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore
All equivalent technical solutions also belong to scope of the invention, and scope of patent protection of the invention should be defined by the claims.