CN100350151C - Combined pawl in a pressure relief arrangement of a single cylinder internal combustion engine - Google Patents
Combined pawl in a pressure relief arrangement of a single cylinder internal combustion engine Download PDFInfo
- Publication number
- CN100350151C CN100350151C CNB2005100784344A CN200510078434A CN100350151C CN 100350151 C CN100350151 C CN 100350151C CN B2005100784344 A CNB2005100784344 A CN B2005100784344A CN 200510078434 A CN200510078434 A CN 200510078434A CN 100350151 C CN100350151 C CN 100350151C
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- cylinder engine
- pressure relief
- pawl
- fork
- ratchet
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Abstract
The present invention relates to a combined pawl for a pressure relief device of a single-cylinder engine, which belongs to the technical field of ratchet wheels. The combined pawl for a pressure relief device of a single-cylinder engine is composed of a bottom plate, a pin post, a swinging rod and a V-shaped pawl, wherein the bottom plate is fixedly connected with a single-cylinder engine; the pin post which is fixed on the bottom plate is movably assembled with the swinging rod and the V-shaped pawl into a whole body. When the single-cylinder engine is started by rocking by hand, if the single-cylinder engine rotates in a reverse direction, a ratchet wheel enables the V-shaped pawl to move; a shifting block at the swinging end of the V-shaped pawl shifts the swinging rod and a connecting rod connected with the swinging rod. An air valve is opened by a pressure decrease mechanism, the power of rotating in a reverse direction is eliminated, and the accidents of injuring humans can be prevented from occurring. The present invention which has the advantages of simple structure and little occupied space can be suitable for the installation and the use of single-cylinder engines of multiple models.
Description
Technical field
Combined pawl in the single-cylinder engine pressure relief device of the present invention relates to the ratchet mechanism technical field, and the concrete single-cylinder engine that relates to takes pressure-relief measure to guarantee the technical field of starting safety.
Background technique
During the single-cylinder engine hand starting, because hand strength is limited, the hand power that the people often occurs can make the combustion gas outburst, but just is in the situation that can not make bent axle cross top dead center, so just cause bent axle to reverse suddenly, the crank operator that injures, in order to eliminate this unsafe factor, people have proposed a kind of technological scheme, after internal-combustion engine reverses, gaseous-pressure in the internal-combustion engine cylinder barrel let out remove, the internal-combustion engine Reverse Power has not had, and the accident that counter-rotating is hurted sb.'s feelings also just no longer exists.Take the pressure release technical measures to eliminate the counter-rotating casualty accident, its key is that the time difference between pressure release and the counter-rotating is the smaller the better.
No. 01277439 patent of China, the safety installations of combustion engine hand lever starting takes the technical measures of pressure release to eliminate the accident that the internal-combustion engine counter-rotating is hurted sb.'s feelings, after internal-combustion engine produces counter-rotating, the decompression handle that ratchet promotes to be connected with ratchet moves, open engine valve, let out the expanding gas that removes in the cylinder barrel, crank loses Reverse Power, and the accident that counter-rotating is hurted sb.'s feelings no longer takes place.The technological scheme of this patent is feasible, but this patent has a defective: the mounting point of ratchet can not adapt to the single-cylinder engine of different model, cause in applying to be restricted, moreover this patent can not make the time difference between counter-rotating and the pressure release reach minimum.
Summary of the invention
Consider the narrow limitation of No. 01277439 patent in application; the present invention proposes the combined pawl in a kind of single-cylinder engine pressure relief device; can adapt to installing and using of existing different model single-cylinder engine; and can make the time difference between counter-rotating and the pressure release reach minimum; it is by base plate; pin; fork; the V-type ratchet is formed; it is characterized in that: base plate is fixedlyed connected with single-cylinder engine; pin is fixed on the base plate; fork; the V-type ratchet is assembled into one with movable cooperation of pin; the connecting rod that one end of fork is connected with the mechanism of decompressor connects, and the other end of fork has a shifting block, in order to stir the V-type ratchet; the pendulum end of V-type ratchet has a shifting block; in order to stir fork, upper fixed one permanent magnet of V-type ratchet is when internal-combustion engine proper functioning and shutdown; the pointed tip of V-type ratchet and permanent magnet adhesive, ratchet and ratchet are in separated state.When needs hand starting single-cylinder engine, pull decompression handle, connecting rod pulling fork, the shifting block of fork upper end makes the V-type ratchet break away from permanent magnet, be slidingly matched with ratchet formation, internal-combustion engine obtains normal starting, under the centrifugal action that the high quick-action of ratchet is changeed, make V-type ratchet and permanent magnet adhesive, as producing counter-rotating, the pointed tip that ratchet promotes the V-type ratchet moves downward, shifting block on the V-type ratchet pendulum end promotes fork, connecting rod, mechanism of decompressor motion, opens valve, lets out the combustion gas of removing in the cylinder barrel, Reverse Power is eliminated, and casualty accident no longer produces.
Concrete implementing measure
Accompanying drawing 1 assembles schematic representation for the present invention.
Accompanying drawing 2 is V-type ratchet schematic representation of the present invention.
Accompanying drawing 3 is fork schematic representation of the present invention.
Among Fig. 1, base plate 8 is fixedlyed connected with single-cylinder engine, and pin 1 is fixed on the base plate 8, and fork 2, V-type ratchet 4 are assembled into one with 1 movable cooperation of pin, permanent magnet 7 is fixed on the top of V-type ratchet 4, and an end of fork 2 connects the connecting rod 3 that is connected with the mechanism of decompressor.
Among Fig. 2, the pendulum end of V-type ratchet 4 has a shifting block 5, in order to stir fork 2.
Among Fig. 3, there is an attachment hole lower end of fork 2, and in order to connect connecting rod 3, there is a shifting block 6 upper end of fork 2, in order to stir V-type ratchet 4.
When single-cylinder engine is not worked, V-type ratchet 4 and permanent magnet 7 adhesives, V-type ratchet 4 and ratchet are for separating shape, when needs hand starting single-cylinder engine, open decompression, 2 motions of connecting rod 3 pulling forks, the shifting block 6 of fork 2 upper ends is stirred V-type ratchet 4, makes it break away from permanent magnet 7, forms the shape that is slidingly matched with ratchet, when single-cylinder engine obtains starting, V-type ratchet 4 breaks away from ratchet under the ratchet action of centrifugal force, to the motion of permanent magnet direction and by adhesive, produce counter-rotating as single-cylinder engine, ratchet makes V-type ratchet 4 to 2 times extreme direction motions of fork, and the shifting block 5 of V-type ratchet 4 pendulum ends is stirred fork 2, makes the connecting rod 3 that is connected with fork 2 open the mechanism of decompressor, let out the gaseous-pressure that removes in the cylinder barrel, eliminate Reverse Power.
Pin 1 among the present invention can directly be fixed on the single-cylinder engine.
V-type ratchet 4 pointed tip among the present invention can be for arc toothed.
V-type ratchet 4 pointed tip among the present invention can be involute profile.
The present invention is simple in structure, cost is low, shared spatial position, mounting point is little, can be applicable to the single-cylinder engine of various models, and can make the time difference between counter-rotating and the pressure release reach minimum.
Claims (6)
1, the combined pawl in a kind of single-cylinder engine pressure relief device is made up of base plate, pin, fork, V-type ratchet, it is characterized in that: base plate is fixedlyed connected with single-cylinder engine, pin is fixed on the base plate, fork, V-type ratchet are assembled into one with movable cooperation of pin, the connecting rod that one end of fork is connected with the mechanism of decompressor connects, the pendulum end of V-type ratchet has a shifting block, in order to stir fork.
2, according to the combined pawl in the single-cylinder engine pressure relief device of claim 1, it is characterized in that: the other end of fork has a shifting block.
3, according to the combined pawl in the single-cylinder engine pressure relief device of claim 1, it is characterized in that: upper fixed one permanent magnet of V-type ratchet.
4, according to the combined pawl in the single-cylinder engine pressure relief device of claim 1, it is characterized in that: pin (1) can directly be fixed on the single-cylinder engine.
5, according to the combined pawl in the single-cylinder engine pressure relief device of claim 1, it is characterized in that: the pointed tip of V-type ratchet is the circular arc flute profile.
6, according to the combined pawl in the single-cylinder engine pressure relief device of claim 1, it is characterized in that: the pointed tip of V-type ratchet is an involute profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100784344A CN100350151C (en) | 2005-06-11 | 2005-06-11 | Combined pawl in a pressure relief arrangement of a single cylinder internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100784344A CN100350151C (en) | 2005-06-11 | 2005-06-11 | Combined pawl in a pressure relief arrangement of a single cylinder internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699741A CN1699741A (en) | 2005-11-23 |
| CN100350151C true CN100350151C (en) | 2007-11-21 |
Family
ID=35475958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100784344A Expired - Fee Related CN100350151C (en) | 2005-06-11 | 2005-06-11 | Combined pawl in a pressure relief arrangement of a single cylinder internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100350151C (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2065247U (en) * | 1990-03-19 | 1990-11-07 | 王克然 | Hand safety means of automobile engine |
| CN2089987U (en) * | 1991-01-14 | 1991-12-04 | 李勤学 | Hand starting safety device for automobile |
| CN2103016U (en) * | 1991-08-01 | 1992-04-29 | 王培珠 | Hand cranking bar inverted prevent device for automobile |
| CN1062956A (en) * | 1990-12-31 | 1992-07-22 | 朱永富 | Reverse-proof protector for automobile engine |
| CN2110717U (en) * | 1991-12-14 | 1992-07-22 | 唐仲秋 | Safety crank |
| CN2114706U (en) * | 1991-12-25 | 1992-09-02 | 郭俊才 | Safety hand crank for starting |
| CN2180796Y (en) * | 1993-09-22 | 1994-10-26 | 曾坚 | Men power starting engine safety device |
| CN2222244Y (en) * | 1995-02-24 | 1996-03-13 | 徐超 | Hand engine cranker without reverse rotation |
| CN2527730Y (en) * | 2001-12-13 | 2002-12-25 | 牛刚学 | Hand-operated starting safety device for internal combustion engine |
-
2005
- 2005-06-11 CN CNB2005100784344A patent/CN100350151C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2065247U (en) * | 1990-03-19 | 1990-11-07 | 王克然 | Hand safety means of automobile engine |
| CN1062956A (en) * | 1990-12-31 | 1992-07-22 | 朱永富 | Reverse-proof protector for automobile engine |
| CN2089987U (en) * | 1991-01-14 | 1991-12-04 | 李勤学 | Hand starting safety device for automobile |
| CN2103016U (en) * | 1991-08-01 | 1992-04-29 | 王培珠 | Hand cranking bar inverted prevent device for automobile |
| CN2110717U (en) * | 1991-12-14 | 1992-07-22 | 唐仲秋 | Safety crank |
| CN2114706U (en) * | 1991-12-25 | 1992-09-02 | 郭俊才 | Safety hand crank for starting |
| CN2180796Y (en) * | 1993-09-22 | 1994-10-26 | 曾坚 | Men power starting engine safety device |
| CN2222244Y (en) * | 1995-02-24 | 1996-03-13 | 徐超 | Hand engine cranker without reverse rotation |
| CN2527730Y (en) * | 2001-12-13 | 2002-12-25 | 牛刚学 | Hand-operated starting safety device for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1699741A (en) | 2005-11-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071121 Termination date: 20100611 |