CN203559948U - Valve mechanism of engine - Google Patents
Valve mechanism of engine Download PDFInfo
- Publication number
- CN203559948U CN203559948U CN201320627630.2U CN201320627630U CN203559948U CN 203559948 U CN203559948 U CN 203559948U CN 201320627630 U CN201320627630 U CN 201320627630U CN 203559948 U CN203559948 U CN 203559948U
- Authority
- CN
- China
- Prior art keywords
- valve
- lock plate
- engine
- less
- valve rod
- 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
Images
Abstract
The utility model discloses a valve mechanism of an engine, which comprises a valve rod, a tapered lock plate and a valve-spring seat, wherein the tapered lock plate is fixedly connected to the inside of a tapered hole of the valve-spring seat; convex cambered surfaces and concave planes are arranged on the tapered lock plate; a clamp spring groove corresponding to each convex cambered surface and a flange surface corresponding to each concave plane are arranged on the valve rod; the height of the convex cambered surface is less than the depth of the clamp spring groove; the diameter of the flange surface is less than that of the concave plane. The valve mechanism is reasonable in structure; the tapered lock plate is not completely in contact with the clamp spring grooves of the valve, as a certain clearance is reserved, the valve rod can rotationally move around the axis of the valve rod, so that the eccentric wear phenomenon of the valve can be avoided, therefore, a preferable sealing effect on a cylinder is achieved; the service life of the valve mechanism is prolonged; the working efficiency of the engine is greatly improved.
Description
Technical field
The utility model belongs to engine intake and exhaust system technical field, is specifically related to a kind of engine air valve device.
Background technique
Motor is a kind of complex mechanical system that is mechanical energy by thermal power transfer, by valve mechanism by the air sucking from the external world and oil plant mixed combustion, promote reciprocating motion of the pistons, the good airproof performance that needs valve in acting process, otherwise can affect the firing effect of oil plant in cylinder, reduce the output power of motor.At present, the valve mechanism that existing cammer adopts is that taper locking plate is stuck in the jump-ring slot of valve stem, both close contacts, this apparatus structure is simple, easy accessibility, but the rotation in the time of can not guaranteeing valve rise, thus valve eccentric wear phenomenon easily be there is, reduce the working life of valve, reduced the output power of motor.
Summary of the invention
The purpose of this utility model is to overcome the deficiency existing in above-mentioned technology, and a kind of reasonable in design, simple is provided, and can make valve stem rotate freely around valve stem axis, improves the engine air valve device of engine operation efficiency.
In order to achieve the above object, the technical solution adopted in the utility model is: comprise valve stem, taper locking plate, cotter seat, described taper locking plate is fixedly connected in the cone shape hole of cotter seat, taper locking plate is provided with convex globoidal and conocave plane, described valve stem be provided with the jump-ring slot corresponding with convex globoidal, with the corresponding fin face in conocave plane, the height of described convex globoidal is less than the groove depth of jump-ring slot, and the diameter of fin face is less than the diameter of conocave plane.
The utility model has the advantages that:
Reasonable in design, between taper locking plate and valve jump-ring slot, not exclusively contact, leave certain gap, valve stem can be around valve stem axis rotation, avoided valve generation eccentric wear phenomenon, thereby cylinder has been played to good seal action, and the life-span of valve mechanism improves, and the working efficiency of motor also improves greatly.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the enlarged view at the utility model I place.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
From Fig. 1-Fig. 2, the utility model comprises valve stem 1, taper locking plate 3, cotter seat 2, described taper locking plate 3 is fixedly connected in the cone shape hole of cotter seat 2, taper locking plate 3 is provided with convex globoidal 6 and conocave plane 7, described valve stem 1 be provided with the jump-ring slot corresponding with convex globoidal 64, with the corresponding fin face 5 in conocave plane 7, the height of described convex globoidal 6 is less than the groove depth of jump-ring slot 4, and the diameter of fin face 5 is less than the diameter of conocave plane 7.
The number of described convex globoidal 4 is three, and the number of conocave plane 7 is two.
Engine valve structure of the present utility model, utilize the height of convex surface arc 6 to be less than the groove depth of jump-ring slot 4, the diameter of fin face 5 is less than the structure setting of the diameter of conocave plane 7, make not comprehensive engagement between taper locking plate 3 and valve stem 1, leave certain gap, thereby can guarantee to be subject to airflow influence during valve stem rises time, valve stem 1 can rotate around valve stem axis, avoided valve generation eccentric wear phenomenon, make the wearing and tearing between valve stem 1 and cotter seat 3 comparatively even, thereby can greatly improve the working life of engine air valve device, improved the working efficiency of motor.
Claims (2)
1. an engine air valve device, comprise valve stem (1), taper locking plate (3), cotter seat (2), it is characterized in that: described taper locking plate (3) is fixedly connected in the cone shape hole of cotter seat (2), taper locking plate (3) is provided with convex globoidal (6) and conocave plane (7), described valve stem (1) is provided with the jump-ring slot (4) corresponding with convex globoidal (6), the fin face (5) corresponding with conocave plane (7), the height of described convex globoidal (6) is less than the groove depth of jump-ring slot (4), the diameter of fin face (5) is less than the diameter of conocave plane (7).
2. a kind of engine air valve device according to claim 1, is characterized in that: the number of described convex globoidal (4) is three, and the number of conocave plane (7) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627630.2U CN203559948U (en) | 2013-09-30 | 2013-09-30 | Valve mechanism of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627630.2U CN203559948U (en) | 2013-09-30 | 2013-09-30 | Valve mechanism of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559948U true CN203559948U (en) | 2014-04-23 |
Family
ID=50509675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320627630.2U Expired - Fee Related CN203559948U (en) | 2013-09-30 | 2013-09-30 | Valve mechanism of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559948U (en) |
-
2013
- 2013-09-30 CN CN201320627630.2U patent/CN203559948U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102926833B (en) | Mechanical type lever proportion regulating mechanism | |
| CN204253168U (en) | A kind of supercharging integrative-structure of four stroke engine | |
| CN205477806U (en) | Engine is variable hydraulic pressure valve mechanism entirely | |
| CN203559948U (en) | Valve mechanism of engine | |
| CN201504166U (en) | Electromagnetic engine | |
| CN204152642U (en) | A kind of pto＝power take-off offset reciprocating piston type internal combustion motor | |
| CN204283619U (en) | Internal-combustion engine connecting plate | |
| CN201747451U (en) | Motor oil cooling system of air cooled engine | |
| CN102966459B (en) | Internal-combustion engine generator system with guide balls | |
| CN202645760U (en) | Internal combustion engine and piston thereof | |
| CN102953779B (en) | Lever regulation type lift variable system | |
| CN204200334U (en) | flywheel fan wind scooper | |
| CN204098980U (en) | A kind of Novel valve rotor | |
| CN204283658U (en) | Internal combustion engine shroud ring | |
| CN204283659U (en) | Oil gas internal-combustion engine shroud ring | |
| CN204082361U (en) | Energy-saving piston | |
| CN110131035A (en) | A kind of energy-saving rotor engine | |
| CN205135793U (en) | Rotary engine | |
| CN103580539B (en) | A kind of electric magnetic engine | |
| CN203925641U (en) | Valve spring holder assembly | |
| CN203584590U (en) | Four-stroke gasoline engine air cylinder | |
| CN203827097U (en) | Electric EGR valve motor protection structure | |
| CN202789099U (en) | Blade engine | |
| CN203316660U (en) | Air hammer capable of replenishing air continuously | |
| CN202441483U (en) | Semicircular turbine |
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 |
Granted publication date: 20140423 Termination date: 20190930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |