CN208918615U - A kind of variable lift reed valve device - Google Patents
A kind of variable lift reed valve device Download PDFInfo
- Publication number
- CN208918615U CN208918615U CN201821523292.7U CN201821523292U CN208918615U CN 208918615 U CN208918615 U CN 208918615U CN 201821523292 U CN201821523292 U CN 201821523292U CN 208918615 U CN208918615 U CN 208918615U
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- China
- Prior art keywords
- valve
- stop baffle
- hole
- slide bar
- valve seat
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Abstract
The utility model discloses a kind of variable lift reed valve devices characterized by comprising the valve seat equipped with valve opening；It is mounted on the valve seat, and the valve block of the valve opening can be covered, the valve block is equipped with free end and the fixing end fixed with the valve seat；Be rotatably connected on the stop baffle on the valve seat by being rotatablely connected end, the fixing end and the rotation connection end are located at the same side of the valve opening, the stop baffle and valve block setting at an acute angle, and between adjustable angle.Stop baffle is arranged in the utility model, valve block is because valve seat inside and outside differential pressure is opened, unlatching can limit priming line-spacing because of the position of stop baffle every time for it, because the angle between stop baffle and valve block is adjustable, therefore pass through the position of adjusting stop baffle, so that lift of valve plate is adjustable, solve the problems, such as to encounter in the prior art.
Description
Technical field
The utility model relates to a kind of variable lift reed valve devices.
Background technique
Two-stroke piston engine is abutted due to the intake and exhaust cylinder cap system without four reciprocating piston engine complexity
Traditional dislocation crankcase air inlet scavenging mechanism, which is be easy to cause in crankcase at high speed, mixes gas time deficiency.Air intake duct reed
Valve realizes the air mixing process of a circulation in advance using air intake duct with the pressure difference variation of crankcase in a duty cycle, provides abundance
The mixed gas time, promote engine performance.But the reed lift of a valve depends primarily on inside and outside differential pressure size and determines stop catch at this stage
Plate opening angle determines the presence limitation leaf valve priming line-spacing of stop baffle, influences gas quantity in different operating condition lower crankcases, increase
The hysteresis under engine variable working condition is added.
With the development of two-stroke piston engine technology, engine the response under variable working condition is required it is higher and higher, because
This, the technical method for needing one kind new is to solve the above problems.
Utility model content
The purpose of the utility model is to provide one kind to adjust the device that valve block opens lift according to corresponding demand.
To solve the above problems, the utility model provides a kind of variable lift reed valve device, which is characterized in that packet
It includes:
Valve seat equipped with valve opening；
Be mounted on the valve seat, and the valve block of the valve opening can be covered, the valve block be equipped with free end and with institute
State the fixed fixing end of valve seat；
The stop baffle on the valve seat, the fixing end and the rotation connection are rotatably connected on by being rotatablely connected end
End is located at the same side of the valve opening, the stop baffle and valve block setting at an acute angle, and between adjustable angle.
As a further improvement of the utility model, further include:
It is slidably connected on the valve seat, and can be along the adjustment slided with the straight path of the valve opening axis parallel
Slide bar；
The crank being rotatably connected on the adjustment slide bar free end, the other end of the crank are rotatably connected on described stop
The middle position of dynamic baffle.
It as a further improvement of the utility model, further include the through-hole on the valve seat, the axis of the through-hole
Parallel with the axis of the valve opening, the adjustment slide bar slides in the through-hole.
It is as a further improvement of the utility model, frictional fit between the adjustment slide bar and the through-hole, it is described
Frictional fit are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of the adjustment slide bar between the through-hole wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment slide bar can slide in the through-hole.
Be provided with damping sleeve in the through-hole as a further improvement of the utility model, the damping sleeve be used for it is described
Adjust slide bar contact, between with being combined into frictional fit, the frictional fit are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of the adjustment slide bar between the through-hole wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment slide bar can slide in the through-hole.
The fixing end of the valve block is bolted on the valve seat as a further improvement of the utility model,.
The rotation connection end on the stop baffle is rotatablely connected by hinge as a further improvement of the utility model,
On the valve seat.
There is the stop baffle enough areas to make the valve plate movement extremely as a further improvement of the utility model,
When being contacted with the stop baffle, between keep completely fitting.
The beneficial effects of the utility model are that stop baffle is arranged in the utility model, and valve block is because of valve seat inside and outside differential pressure
It opens, priming line-spacing can be limited because of the position of stop baffle every time by opening, because the angle between stop baffle and valve block can
With adjustment, therefore the position by adjusting stop baffle efficiently solves and encounters in the prior art so that lift of valve plate is adjustable
The problem of.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Wherein: 1- valve opening；2- valve seat；3- valve block；4- stop baffle；5- adjusts slide bar；6- crank；7- through-hole；8- spiral shell
Bolt.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below.
As shown in Figure 1, the utility model includes:
Valve seat equipped with valve opening；
Be mounted on the valve seat, and the valve block of the valve opening can be covered, the valve block be equipped with free end and with institute
State the fixed fixing end of valve seat；
The stop baffle on the valve seat, the fixing end and the rotation connection are rotatably connected on by being rotatablely connected end
End is located at the same side of the valve opening, the stop baffle and valve block setting at an acute angle, and between adjustable angle.
As a further improvement of the utility model, further include:
It is slidably connected on the valve seat, and can be along the adjustment slided with the straight path of the valve opening axis parallel
Slide bar；
The crank being rotatably connected on the adjustment slide bar free end, the other end of the crank are rotatably connected on described stop
The middle position of dynamic baffle.
It as a further improvement of the utility model, further include the through-hole on the valve seat, the axis of the through-hole
Parallel with the axis of the valve opening, the adjustment slide bar slides in the through-hole.
It is as a further improvement of the utility model, frictional fit between the adjustment slide bar and the through-hole, it is described
Frictional fit are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of the adjustment slide bar between the through-hole wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment slide bar can slide in the through-hole.
Be provided with damping sleeve in the through-hole as a further improvement of the utility model, the damping sleeve be used for it is described
Adjust slide bar contact, between with being combined into frictional fit, the frictional fit are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of the adjustment slide bar between the through-hole wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment slide bar can slide in the through-hole.
The fixing end of the valve block is bolted on the valve seat as a further improvement of the utility model,.
The rotation connection end on the stop baffle is rotatablely connected by hinge as a further improvement of the utility model,
On the valve seat.
There is the stop baffle enough areas to make the valve plate movement extremely as a further improvement of the utility model,
When being contacted with the stop baffle, between keep completely fitting.
The specific implementation step of the utility model is as follows:
(1) valve block uses Carbon fibe material, and free end rides on the edge outer wall of valve opening, and fixing end is fixed on valve seat
On, under the action of valve seat inside and outside differential pressure, valve block is opened around fixing end；
(2) stop baffle, the valve block setting at an acute angle under stop baffle and tranquility are set, and the effect of stop baffle is
After limitation valve block is contacted with stop baffle, valve block continues to move, that is, limits the priming line-spacing of valve block；
(3) angle between stop baffle and valve block is adjustable, specifically, is arranged through-hole on valve seat, in through-hole
Equipped with that can adjust in axial sliding litter along it, the free end for adjusting litter is rotatably connected to crank, and the other end of crank turns
The dynamic middle position for being connected to stop baffle, middle position here are not the geometric center for referring to stop baffle, should
Including the other positions other than stop catch board ends portion；
(4) litter is adjusted in through-holes, the fit system with through-hole is frictional fit, that is to say, that at work, adjust
After the position restriction of litter in through-holes, the effect without other external force will not occur position movement, but pass through manpower or behaviour
It is position of the adjustable adjusting litter in through-hole, certainly, this frictional fit should not when author is by other external force
It is confined to through-hole and directly contacts generation with litter is adjusted, be also possible to fix damping sleeve in through-holes, adjust litter and be inserted in resistance
It is above-mentioned so-called frictional fit between damping sleeve in Buddhist nun's set.
(5) valve seat uses heat resistant epoxide resin material ejection formation, and stop baffle is formed using aluminum alloy forged.Make its symbol
Close corresponding operating condition.
Above embodiments are only the one such embodiment of the utility model, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (8)
1. a kind of variable lift reed valve device characterized by comprising
Valve seat (2) equipped with valve opening (1)；
It is mounted on the valve seat (2), and the valve block (3) of the valve opening (1) can be covered, the valve block (3) has free end
And the fixing end fixed with the valve seat (2)；
It is rotatably connected on the stop baffle (4) on the valve seat (2) by being rotatablely connected end, the fixing end and the rotation connect
Connect the same side that end is located at the valve opening (1), the stop baffle (4) and the valve block (3) setting at an acute angle, and between angle
It spends adjustable.
2. a kind of variable lift reed valve device according to claim 1, which is characterized in that further include:
It is slidably connected on the valve seat (2), and can be along the tune slided with the straight path of the valve opening (1) axis parallel
Whole slide bar (5)；
The crank (6) being rotatably connected on described adjustment slide bar (5) free end, the other end of the crank (6) are rotatably connected on
The middle position of the stop baffle (4).
3. a kind of variable lift reed valve device according to claim 2, which is characterized in that further include being located at the valve seat
(2) axis of the through-hole (7) on, the through-hole (7) is parallel with the axis of the valve opening (1), and the adjustment slide bar (5) is described
Sliding in through-hole (7).
4. a kind of variable lift reed valve device according to claim 3, which is characterized in that the adjustment slide bar (5) and
It is frictional fit, the frictional fit between the through-hole (7) are as follows:
Under running conditions, it is relatively sliding can to limit it for frictional force of adjustment slide bar (5) between the through-hole (7) inner wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment slide bar (5) can the sliding in the through-hole (7).
5. a kind of variable lift reed valve device according to claim 4, which is characterized in that setting in the through-hole (7)
Have damping sleeve, the damping sleeve for being contacted with the adjustment slide bar (5), between match and be combined into frictional fit, the friction is matched
It is combined into:
Under running conditions, it is relatively sliding can to limit it for frictional force of adjustment slide bar (5) between the through-hole (7) inner wall
It is dynamic；
Under the external force for being higher than operating condition, the adjustment slide bar (5) can the sliding in the through-hole (7).
6. a kind of variable lift reed valve device according to claim 4 or 5, which is characterized in that the valve block (3)
Fixing end is fixed on the valve seat (2) by bolt (8).
7. a kind of variable lift reed valve device according to claim 6, which is characterized in that on the stop baffle (4)
Rotation connection end be rotatably connected on the valve seat (2) by hinge.
8. a kind of variable lift reed valve device according to claim 7, which is characterized in that stop baffle (4) tool
Have enough areas make the valve block (3) move to the stop baffle (4) contact when, between keep completely fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821523292.7U CN208918615U (en) | 2018-09-18 | 2018-09-18 | A kind of variable lift reed valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821523292.7U CN208918615U (en) | 2018-09-18 | 2018-09-18 | A kind of variable lift reed valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918615U true CN208918615U (en) | 2019-05-31 |
Family
ID=66706047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821523292.7U Active CN208918615U (en) | 2018-09-18 | 2018-09-18 | A kind of variable lift reed valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208918615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026257A (en) * | 2018-09-18 | 2018-12-18 | 江苏心源航空科技有限公司 | A kind of variable lift reed valve device |
-
2018
- 2018-09-18 CN CN201821523292.7U patent/CN208918615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026257A (en) * | 2018-09-18 | 2018-12-18 | 江苏心源航空科技有限公司 | A kind of variable lift reed valve device |
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