CN108798936A - The air throttle and choke of diaphragm type carburator control linkage mechanism - Google Patents
The air throttle and choke of diaphragm type carburator control linkage mechanism Download PDFInfo
- Publication number
- CN108798936A CN108798936A CN201810844354.2A CN201810844354A CN108798936A CN 108798936 A CN108798936 A CN 108798936A CN 201810844354 A CN201810844354 A CN 201810844354A CN 108798936 A CN108798936 A CN 108798936A
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- choke
- throttle
- fast
- idle speed
- handle
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- 230000007246 mechanism Effects 0.000 title claims abstract description 68
- 230000008520 organization Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 25
- 230000009471 action Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000003921 oil Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/02—Floatless carburettors
- F02M17/04—Floatless carburettors having fuel inlet valve controlled by diaphragm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
- F02M1/02—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being chokes for enriching fuel-air mixture
Abstract
The present invention is that a kind of air throttle of diaphragm type carburator and choke control linkage mechanism, is set up an organization the integral structure formed by air throttle, choke and a cold start fast-idle speed；Air strangler spindle installs choke door handle, torsional spring, fast-idle speed handle, choke axle sleeve and choke successively from top to bottom；Choke door handle is arranged on Air strangler spindle, when rotating choke door handle, Air strangler spindle is driven to rotate together.It may insure that choke air throttle in the case of fully closed opens an angle in air throttle and choke control linkage mechanism linkage, and the groove of throttle grip and fast-idle speed handle is not at linkage status, have gap between them；Choke can fully closed and consistency it is good, when starting, which is heard, again opens choke after engine sends out " POP " sound, and choke door handle is detached from throttle grip, and throttle grip is coupled with fast-idle speed handle in groove, air throttle（Throttle）Aperture consistency is good, improves starting performance and the consistency of fast idle speed.
Description
Technical field
The present invention relates to a kind of diaphragm type carburator, the air throttle in particular to a kind of diaphragm type carburator and resistance
Airdoor control linkage mechanism.
Background technology
Carburetor is the machinery that mixes a certain proportion of gasoline with air under the vacuum action that engine work generates
Device.There are many type of the carburetor occurred currently on the market, configurations, and the effect of carburetor and principle are essentially identical,
Mainly control into engine air and fuel oil gaseous mixture, wherein mixed gas flow number be big by the aperture of air throttle
Small decision, the throttle trigger of trip engine makes the aperture of carburetor throttle generate variation, to control into engine
The amount of gaseous mixture.
As shown in Figure 21-29, the air throttle of carburetor and choke control linkage mechanism in the prior art.On engine
Choke lever pulls choke door handle (13), so that choke door handle (13) is rotated counterclockwise, due to choke door handle (13)
It is provided with Air strangler spindle (7) connecting portion non-circular, Air strangler spindle is driven (7) and to pass through screw (8) fixed choke (9)
It rotates jointly, at the same time, there are one (11-1) of block (13-1) and fast-idle speed handle (11) in choke door handle (13)
Contact pushes fast-idle speed handle (11), is rotated in the counterclockwise direction after overcoming the torsion of torsional spring (10).It is drawn in choke lever
Under force effect, when choke (9) is closed to certain position, fast-idle speed handle (11) is contacted with (5-1) of throttle control arm (5)
And push throttle plate pin component (1) and gradual with progressively closing off for choke (9) by screw (2) fixed air throttle (3)
It opens, (5-1) falls into ratchet (11-2) and generate coupling, and fast-idle speed hand can be fallen into order to ensure (5-1) of throttle control arm
In the ratchet (11-2) of handle (11), and when choke (9) is designed with ontology choke aperture of door (14-1) at this time, cannot must completely close
It closes, is also impossible to close just in specific implementation：When not having overtravel, (5-1) of throttle control arm (5) can not be fallen into
Into the ratchet (11-2) of fast-idle speed handle (11)；In order to ensure fast-idle speed handle (11) and throttle grip (5) generate coupling,
It must have overtravel (as shown in figure 26), the endoporus (14-1) on choke (9) and ontology (14) is when in fast-idle speed hand at this time
Under the action of torsional spring on handle, choke cannot be completely closed and be sealed, i.e., overtravel when will produce gap.Due to each
Accumulation tolerance cause the location consistency of choke (9) poor, as shown in Figure 26,28, under the promotion of external force, choke is complete
When contract fully, when fast-idle speed handle and throttle grip link, gap is just produced between fast-idle speed handle and throttle grip.
As shown in Figure 27,29, after losing external force promotion, Air strangler spindle (7) is counter under torsional spring force effect to be pushed away, and choke is caused to open one
Part, to influence the starting performance of engine.After fast-idle speed linkage, has and differ in size between choke and ontology air inlet
Gap, choke is unable to completely close, and air inflow is variant when leading to engine start, the starting performance difference of engine compared with
Greatly.
Referring next to another structural schematic diagram in the prior art shown in Figure 30-33, the linkage mechanism and above-mentioned connection
Difference lies in fast-idle speed handle, tops to carry inclined-plane for motivation structure.Choke lever (not shown) on engine pulls resistance
Throttle lever (13), choke door handle (13) and Air strangler spindle (7) connecting portion are provided with flat, drive Air strangler spindle (7) and
It is rotated together by screw (8) fixed choke (9), at the same time, there are one block (13- in choke door handle (13)
1) it is contacted with (11-1) of fast-idle speed handle 11, pushes fast-idle speed handle (11), overcome the torsion of torsional spring (10).It is grasped in choke
Under vertical pole pulling force effect, when choke (9) rotates to certain position, the arm (5- of fast-idle speed handle (11) and throttle grip (5)
1) it contacts and pushes throttle plate pin component (1) and by screw (2) fixed air throttle (3) progressively closing off with choke (9)
And be gradually opened, when the arm (5-1) of throttle grip (5) slides into fast-idle speed handle along face (11-3) of fast-idle speed handle (11)
(11) when (11-2), the inclined-plane (11-2) of arm (5-1) the contact fast-idle speed handle (11) of throttle grip (5), and generate just
The coupling of step continues to pull choke door handle (13), when choke (9) is completely closed with ontology (14), throttle grip (5)
Arm (5-1) some point (as shown in figure 32) is slided on the inclined-plane (11-2) of fast-idle speed handle (11), this subject throttle 3
Open position depends on arm (5-1) sliding of throttle grip (5) in the position on the inclined-plane (11-2) of fast-idle speed handle (11), often
The accumulation tolerance of a part will cause the arm (5-1) of the product throttle grip (5) of volume production on the inclined-plane of fast-idle speed handle (11)
Position on (11-2) all can be inconsistent, so the opening size comparison of coherence of air throttle (3) is poor；Fast-idle speed handle (11) exists
Under the action of throttle grip (5), torsion counterclockwise drives choke (9) to close but due to the presence of foozle, air throttle
(3) there is uncertainty in position, influence the starting performance of engine.The disadvantage is that due to each accumulation tolerance, it is fast idle
After speed linkage, air throttle (throttle) opening size differs greatly, after leading to engine start consistency difference and starting when fast-idle speed
Engine speed scattered error it is big.
Invention content
Based on the above issues, the present invention provides a kind of air throttle and choke control linkage mechanism of diaphragm type carburator,
It aims to solve the problem that the gap for having and differing in size between choke and ontology air inlet, is unable to completely close, air inlet when causing to start
Difference is measured, the starting performance of engine differs greatly；And air throttle (throttle) opening size differs greatly, and engine is caused to rise
The dynamic consistency difference problem big with the engine speed scattered error after starting when fast-idle speed.For this purpose, the present invention uses following technology
Scheme.
Air throttle and choke the control linkage mechanism of the diaphragm type carburator of the present invention and an air throttle-choke
Cold start fast-idle speed set up an organization to form one, when choke gate valve rotates to full close position from open position, the choke-
Air throttle cold start sets up an organization can automatically open throttler valve one position bigger than idle position slightly, make at its
In fast-idle speed position.The air throttle and choke valve control mechanism of carburetor include a rotatable choke that choke is housed
Axis, a throttle plate pin rotatable and equipped with air throttle, one for rotating the choke from being opened to close stance
It is setting and be fixed on the choke door handle on Air strangler spindle, one carry air throttle torsional spring and for rotating the solar term
Door from idle position to fully open position and the throttle grip that is fixed on throttle plate pin, and returned there are one fast-idle speed is born
Secondly choke is passed through choke door handle and resistance by the fast-idle speed handle that can be freely rotated on Air strangler spindle of position torsional spring
Axle of the air door makes it from standard-sized sheet to fully closed, and fast-idle speed handle is inserted in above-mentioned described by fast-idle speed return spring deflection under normal conditions
Air strangler spindle on, and can be waved in travel paths there are one free end, travel paths are under normal circumstances and institute
The travel paths of the free end for the throttle grip said are coplanar and intersect have on described free end a recessed
Slot is for be combineding with each other, here, having one of in the choke door handle and fast-idle speed handle or both convex
Platform, the boss operability by handle one of in the connection choke door handle and fast-idle speed handle, in this way
Described choke door handle makes choke closing rotation be granted by described fast-idle speed handle towards binding site common rotation.Resistance
There are one the faces that can be linked with throttle grip for setting on throttle lever, may insure choke in fully closed situation in linkage
Lower air throttle opens an angle.
Preferably, there are one the faces that can be linked with throttle grip for setting in the choke door handle, can in linkage
To ensure that choke air throttle in the case of fully closed opens an angle, and the groove of throttle grip and fast-idle speed handle is not
There is gap in linkage status, between them.
In any of the above-described scheme preferably, described when linkage mechanism links, choke is opened, choke door handle is made
After linkage between throttle grip is detached from, fast-idle speed handle establishes linkage status again with throttle grip, and keeps
Air throttle is in fast-idle speed open position.
In any of the above-described scheme preferably, the choke door handle and throttle grip have been respectively subjected to join to foundation
The torsion of dynamic state makes choke door handle and throttle grip couple and establishes linkage.
It is preferably in any of the above-described scheme, at least one is equipped with convex in the choke door handle and fast-idle speed handle
Platform, and the torsion of fast-idle speed handle carrying torsional spring is in contact with choke door handle always, makes choke pulling choke door handle
By in standard-sized sheet to fully closed closing process, pushing fast-idle speed handle to be rotated to linkage direction, and push throttle grip also to linkage
Direction rotates, and choke door handle is finally made to be in linkage with throttle grip.
In any of the above-described scheme preferably, one end of the fast-idle speed handle is set as circular hole, is mounted in Air strangler spindle
On, and can be rotated freely on Air strangler spindle, the other end is set as structure with groove, can generate connection with throttle grip
It is dynamic.
When the valve of choke rotates to full close position from open position, choke door handle is in throttle grip at this time
Linkage status, choke-air throttle cold start sets up an organization can automatically open throttler valve one than fast-idle speed position slightly
The position for also wanting big is set, the position also bigger than fast-idle speed position is at.
Air strangler spindle is rotatable and choke is housed；Choke door handle is for rotating choke from being opened to close stance
It is setting and be fixed on Air strangler spindle；Throttle grip carries torsional spring and for rotating air throttle from idle position to standard-sized sheet position
It is setting and be fixed on throttle plate pin；Fast-idle speed handle bears torsional spring and can be freely rotated on Air strangler spindle.
In any of the above-described scheme preferably, the throttle grip is equipped with non-circular geometric face.
In any of the above-described scheme preferably, it is additionally provided with non-circular geometric face in the choke door handle.
In any of the above-described scheme preferably, the top of the throttle plate pin is equipped with non-circular geometric face.
In any of the above-described scheme preferably, non-circular in the non-circular geometric face and throttle grip of the throttle plate pin
Face is fastened with merging by screw.
In any of the above-described scheme preferably, the junction of the throttle grip and throttle plate pin is equipped with opening and keeps off
Circle.
In any of the above-described scheme preferably, the Air strangler spindle is equipped with non-circular geometric face and cylindrical surface
In any of the above-described scheme preferably, not rounded in the non-circular geometric face and Air strangler spindle in the choke door handle
Shape face coordinates, and Air strangler spindle is driven to rotate together.
In any of the above-described scheme preferably, the fast-idle speed handle includes cylinder hole face, card slot, vertex and multiple
Side, when fast-idle speed handle, which goes to vertex, withstands the side of throttle grip, throttle grip drives air throttle to rotate to maximum section
Valve opening position；The side of throttle grip has not been entered into the card slot of fast-idle speed handle at this time.
In any of the above-described scheme preferably, the cylindrical surface of the cylinder hole face and Air strangler spindle 7 of the fast-idle speed handle
Cooperation；Fast-idle speed handle is freely rotated on Air strangler spindle.
In any of the above-described scheme preferably, the junction of the fast-idle speed handle and Air strangler spindle 7 is equipped with choke
Axle sleeve.
In any of the above-described scheme preferably, the fast-idle speed handle is inserted in by the Air strangler spindle of torsional spring deflection, and
And can be waved in travel paths there are one free end, the travel paths of the free end of travel paths and throttle grip are same
Plane and intersect.
In any of the above-described scheme preferably, one of in the choke door handle and fast-idle speed handle or two
With boss, which passes through handle, choke one of in connection choke door handle and fast-idle speed handle
Door handle makes choke closing rotation be granted by fast-idle speed handle towards binding site common rotation.
In any of the above-described scheme preferably, the choke by choke door handle and Air strangler spindle to linkage shape
Choke is from standard-sized sheet to fully closed when state rotates.
In any of the above-described scheme preferably, the air throttle is fixed by screws on throttle plate pin.
Description of the drawings
The preferred but non-limiting embodiment such as the present invention, these and other characteristic aspects of the invention will now be described
It will become obvious with advantage when refer to the attached drawing reads detailed further below, wherein：
Fig. 1 is the preferred embodiment of the air throttle and choke control linkage mechanism of diaphragm type carburator according to the invention
Structural schematic diagram.
Fig. 2 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select the broken away view of embodiment.
Fig. 3 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select throttle plate pin broken away view in embodiment.
Fig. 4 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select Air strangler spindle broken away view in embodiment.
Fig. 5 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select schematic diagram when choke standard-sized sheet, air throttle are fully closed in embodiment.
Fig. 6 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select the structural schematic diagram of choke door handle in embodiment.
Fig. 7 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select the structural schematic diagram of fast-idle speed handle in embodiment.
Fig. 8 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select choke door handle and fast-idle speed handle contact state diagram in embodiment.
Fig. 9 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select the procedure chart that choke is closed, air throttle is opened in embodiment.
Figure 10 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select the enlarged drawing of fast-idle speed handle in embodiment.
Figure 11 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select the structural schematic diagram of throttle grip in embodiment.
Figure 12 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select state diagram when throttle grip is just contacted with fast-idle speed handle in embodiment.
Figure 13 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Air throttle in embodiment is selected to rotate to maximum opening state diagram.
Figure 13-1 controls Figure 13 institutes of linkage mechanism for the air throttle and choke of diaphragm type carburator according to the invention
Show the working state figure of fast-idle speed handle and throttle grip in preferred embodiment.
Figure 14 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Fast-idle speed handle in embodiment is selected to rotate fast-idle speed handle counterclockwise more than the procedure chart after peak.
Figure 14-1 controls Figure 14 institutes of linkage mechanism for the air throttle and choke of diaphragm type carburator according to the invention
Show fast-idle speed handle and throttle grip, the state diagram of choke door handle contact site in preferred embodiment.
Figure 15 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Select choke completely closed state figure in embodiment.
Figure 15-1 controls Figure 15 institutes of linkage mechanism for the air throttle and choke of diaphragm type carburator according to the invention
Show fast-idle speed handle and throttle grip, the state diagram of choke door handle contact site in preferred embodiment.
Figure 16 is excellent shown in the air throttle of diaphragm type carburator according to the invention and Fig. 1 of choke control linkage mechanism
Fast-idle speed handle in embodiment is selected to rotate clockwise halted state figure.
Figure 16-1 controls Figure 16 institutes of linkage mechanism for the air throttle and choke of diaphragm type carburator according to the invention
Show throttle grip in preferred embodiment, fast-idle speed handle, choke door handle contact condition figure.
Figure 17 is throttle grip in preferred embodiment shown in Fig. 1 of diaphragm type carburator linkage mechanism according to the invention
When rotating clockwise more than fast-idle speed handle after peak and throttle grip contact condition figure.
Figure 17-1 controls Figure 17 institutes of linkage mechanism for the air throttle and choke of diaphragm type carburator according to the invention
Show throttle grip in preferred embodiment, fast-idle speed handle, choke door handle contact condition figure.
Figure 18 is choke standard-sized sheet in preferred embodiment shown in Fig. 1 of diaphragm type carburator linkage mechanism according to the invention
When state diagram when linking of fast-idle speed handle and throttle grip.
Figure 18-1 is air throttle in preferred embodiment shown in Figure 18 of diaphragm type carburator linkage mechanism according to the invention
State diagram when handle, fast-idle speed handle, choke door handle linkage.
Figure 19 is the air throttle hand in preferred embodiment shown in Fig. 1 of diaphragm type carburator linkage mechanism according to the invention
State diagram when handle is in critical from fast idle mode to full-gear rotation subject throttle handle and fast-idle speed handle.
Figure 20 be choke shown in Fig. 1 of diaphragm type carburator linkage mechanism according to the invention in preferred embodiment and
Air throttle handles state diagram when standard-sized sheet.
Figure 20-1 controls Figure 20 institutes of linkage mechanism for the air throttle and choke of diaphragm type carburator according to the invention
Show the contact condition figure of choke and fast-idle speed handle in preferred embodiment.
Figure 21 is the structural schematic diagram of carburetor linkage mechanism in the prior art.
Figure 22 is the shaft side figure of the structure of throttle grip in Figure 21 of carburetor linkage mechanism in the prior art.
Figure 23 is the structural schematic diagram of choke door handle in Figure 21 of carburetor linkage mechanism in the prior art.
Figure 24 is the structural schematic diagram of fast-idle speed handle in Figure 21 of carburetor linkage mechanism in the prior art.
Figure 25 is Figure 21 ontology sectional views of carburetor linkage mechanism in the prior art.
Figure 26 is the overtravel state diagram of Figure 21 of carburetor linkage mechanism in the prior art.
Figure 27 is return state diagrams of the Figure 21 of carburetor linkage mechanism in the prior art under the effect of choke torsional spring.
Figure 28 is choke completely closed state figure in Figure 21 of carburetor linkage mechanism in the prior art.
Figure 29 is after losing external force promotion, Air strangler spindle is in torsional spring in Figure 21 of carburetor linkage mechanism in the prior art
It is counter under force effect to push away, cause choke to open the state diagram of a part.
Figure 30 is the topology view of another carburetor linkage mechanism in the prior art.
Figure 31 is fast-idle speed handle arrangement schematic diagram in Figure 30 of carburetor linkage mechanism in the prior art.
Figure 32 is the linkage status figure of Figure 30 of carburetor linkage mechanism in the prior art.
Figure 33 is choke completely closed state figure in Figure 30 of carburetor linkage mechanism in the prior art.
Specific implementation mode
The following description is substantially only exemplary and is not intended to the limitation disclosure, application or purposes.It should
Understand, in whole attached drawings, corresponding reference numeral indicates identical or corresponding component and feature.
Referring now to the drawings, Fig. 1-Fig. 4 describes the shape assumption diagram of the carburetor of the present invention.A kind of diaphragm type carburator
Linkage mechanism, including throttle plate pin 1, air throttle 3, throttle grip 5, Air strangler spindle 7, choke 9, fast-idle speed handle 11 and resistance
Throttle lever 13 and ontology 14, the linkage mechanism are the cold start by air throttle 3, choke 9 and an air throttle-choke
Fast-idle speed sets up an organization the integral structure to be formed；Air strangler spindle 7 from top to bottom successively install choke door handle 13, torsional spring 12,
Fast-idle speed handle 11, choke axle sleeve 10 and choke 9；It links with choke door handle 13 there are one being set in choke door handle 13
Non-circular geometric face 13-1 and non-circular geometric face 13-2, when fast-idle speed mechanism links, the air throttle 3 in the case of fully closed of choke 9 is opened
One angle, and the groove of throttle grip 5 and fast-idle speed handle 11 is not at linkage status has gap between them；Resistance
Air door 9 can fully closed and consistency it is good, hear at the start when again opening choke after engine sends out " POP " sound, choke
Door handle is detached from throttle grip, and throttle grip is coupled with fast-idle speed handle in groove again at this time, therefore air throttle (oil
Door) aperture consistency is good, greatly improve the consistency of the starting performance and fast idle speed of engine.
When choke 9 rotates to full close position from open position, choke-air throttle cold start sets up an organization can be automatic
Throttler valve is opened a position also bigger than fast-idle speed position by ground, and the starting of engine is made to be more prone to.
Air strangler spindle 7 is rotatable and choke 9 is housed；Choke door handle 13 is for rotating choke 9 from standard-sized sheet to complete
Close or from it is fully closed to fully open position and be fixed on Air strangler spindle 7；Throttle grip 5 carries torsional spring (not shown) and is used for
Rotate air throttle 3 from full close position to fully open position and be fixed on throttle plate pin 1；Fast-idle speed handle 11 carries torsion
Spring 12 can simultaneously be freely rotated on Air strangler spindle 7.
In the present embodiment, the non-circular geometric face 13-1 in the choke door handle 13, non-circular geometric face 13-2 respectively with choke
Non-circular geometric face 7-1, non-circular geometric face 7-2 cooperations on door-hinge 7, drive Air strangler spindle 7 to rotate together (as shown in Figure 4).
In the present embodiment, the throttle grip 5 is equipped with non-circular geometric face 5-1 and non-circular geometric face 5-2.And in air throttle
Axis is equipped with matched non-circular geometric face 1-1 and non-circular geometric face 1-2.
In the present embodiment, the non-circular geometric face 1-1 of the throttle plate pin 1, non-circular geometric face 1-2 respectively with throttle grip 5
On non-circular geometric face 5-1, non-circular geometric face 5-2 with merge by screwing 6 fasten (as shown in Figure 3).
In the present embodiment, the cylindrical surface of the throttle plate pin 1 is equipped with annular groove, and fills split washer 4 here.
In the present embodiment, the Air strangler spindle 7 is equipped with non-circular geometric face 7-1, non-circular geometric face 7-2 and cylindrical surface 7-3 (such as
Shown in Fig. 4).
In the present embodiment, the fast-idle speed handle 11 includes cylinder hole face 11-7, card slot 11-3, vertex 11-5 and multiple
Side (as shown in Fig. 4, Fig. 7), when fast-idle speed handle 11 go to vertex 11-5 withstand the side 5-6 of throttle grip 5 when (such as Figure 11,
Shown in Figure 13, Figure 13-1), maximum throttle opening position when throttle grip 5 drives air throttle 3 to rotate to linkage；At this time
The side 5-5 of throttle grip 5 has not been entered into the card slot 11-3 of fast-idle speed handle 11 (as shown in Figure 13-1).
In the present embodiment, the cylinder hole face 11-7 of the fast-idle speed handle 11 and cylindrical surface 7-3 of Air strangler spindle 7 matches
It closes；Fast-idle speed handle 11 is free to rotate on Air strangler spindle 7.
In the present embodiment, the junction of the fast-idle speed handle 11 and Air strangler spindle 7 is equipped with choke axle sleeve 10 (as schemed
Shown in 4).
In the present embodiment, the fast-idle speed handle 11 is inserted in by the Air strangler spindle 7 of 12 deflection of torsional spring, and there are one
Free end can wave in travel paths, and the travel paths of travel paths and the free end of throttle grip 5 are coplanar
And it intersects.
In the present embodiment, one of in the choke door handle 13 and fast-idle speed handle 11 or two with convex
Platform, the boss operability pass through handle, choke one of in connection choke door handle 13 and fast-idle speed handle 11
Handle 13 makes the closing rotation of choke 9 be granted by fast-idle speed handle 11 towards binding site common rotation.
In the present embodiment, the choke 9 can make choke by the rotation of choke door handle 13 and Air strangler spindle 7
From standard-sized sheet to fully closed or from fully closed to standard-sized sheet.
In the present embodiment, the air throttle 3 is fixed on by screw 2 on throttle plate pin 1.
Referring next to shown in Fig. 5-8, display choke is from standard-sized sheet to fully closed procedure chart.
In 9 fully open position of choke, fast-idle speed handle 11 is under the twisting force of torsional spring 12, side 11-1 and choke hand
The side 13-1 of handle 13 is adjacent to, and side 11-2 is kept away from.When choke 9 is rotated from standard-sized sheet to full close position；Stir counterclockwise
When choke door handle 13 rotates, choke door handle 13 drives the rotation counterclockwise of fast-idle speed handle 11.
As shown in figs9-12, procedure chart of the display air throttle from idle position to open position.
When fast-idle speed handle 11 is when 5-3 is contacted when 11-6 is gone to throttle grip 5, throttle grip 5 is driven
With air throttle 3 is corresponding does clockwise movement, air throttle is gradually rotated from idling to open position direction.
Such as Figure 13, the throttle opening maximum position state diagram in Figure 13-1 linkage process.
When fast-idle speed handle 11 side 11-6 push throttle grip 5 rotate, when the side 11-5 of fast-idle speed handle go to
When the side 5-3 contacts of throttle grip 5, drives throttle grip 5 and air throttle 3 is corresponding does clockwise movement, air throttle
Gradually rotated from idling to standard-sized sheet direction, when the while 5-6 in 11-5 and throttle grip 5 of fast-idle speed handle 11 is contacted, this
When be that throttle opening in linkage process is in maximum position.
As shown in Figure 14, Figure 14-1, when pulling on choke door handle 13, fast-idle speed handle 11 continues to revolve counterclockwise
Turn, throttle grip 5 enters the while 11-4 of fast-idle speed handle 11 under the action of torsional spring (not shown) torsion in the parts 5-5.Together
The vertex 5-2 of subject throttle handle 5 just withstands the side 13-2 of choke door handle 13.
As shown in Figure 15, Figure 15-1, when choke door handle 13 continues to rotate, to push fast-idle speed handle 11 to also continue to revolve
Choke 9 is gone to completely close.The middle section of the face 13-2 of the vertex 5-2 and choke door handle 13 of throttle grip 5 at this time
It is at a fully engaged, and while 5-5 and while 11-4, side 5-6 and card slot 11-3 do not contact, there are gaps between them.
As shown in Figure 16,16-1, when pushing choke door handle 13 that choke 9 is driven to rotate clockwise, while choke
The side 13-2 of handle 13 pushes throttle grip 5 to rotate clockwise；Due to fast-idle speed handle 11 also one under 12 twisting force of torsional spring
It rises and rotates clockwise, until contacting and blocking in the while 5-5 of 11-4 and throttle grip 5.Fast-idle speed handle 11 is no longer suitable at this time
Hour hands rotate.
As shown in Figure 17,17-1, continues to press on choke door handle 13 and rotate clockwise, the vertex 13-3 of choke door handle 13
The vertex 5-2 for crossing throttle grip 5, along side, 5-1 continues sliding until the vertex 13-3 of choke door handle 13 is detached from air throttle
The side 5-1 of handle 5.And throttle grip 5 counterclockwise rotates under the action of torsional spring (not shown) torsion at this time, until card
In the card slot 11-3 of fast-idle speed handle 11.Throttle grip 5 stops rotating counterclockwise at this time.
As shown in Figure 18, Figure 18-1, continues to press on choke door handle 13 and rotate clockwise, the vertex of choke door handle 13
13-3 completely disengages the side 5-1 of throttle grip 5, until choke 9 is rotated clockwise to fully open position, 9 He of choke at this time
Block 14-1 contacts on ontology 14.The side 5-6 of throttle grip 5 is stuck in completely in the card slot 11-3 of fast-idle speed handle 11.
As shown in figure 19, when operation throttle is rotated from fast-idle speed to fully open position, i.e., throttle grip is stirred clockwise
In the vertex 11-5 of fast-idle speed handle 11, throttle grip 5 is in critical condition at this time by 5, the side 5-6 of throttle valve handle 5.
Finally refering to shown in Figure 20,20-1, linkage mechanism of the invention movement terminates state diagram.
Continue to operate throttle, throttle grip 5 continues to rotate clockwise, and the vertex 11-5 of fast-idle speed handle is detached from air throttle
Handle edge 5-6, fast-idle speed handle 11 rotate clockwise under the action of torsional spring 12, until the side 11-1 of fast-idle speed handle 11 and resistance
The side 13-1 of throttle lever 13 is contacted.The movement of linkage mechanism terminates.
Although the present invention is disclosed in detail in refer to the attached drawing, it will be appreciated that, these descriptions are only exemplary, and
The non-application for being used for limiting the present invention.Protection scope of the present invention may include not departing from this by appended claims
Needle various modifications, remodeling and equivalent scheme made for the present invention in the case of invention protection domain and spirit.
Claims (10)
1. air throttle and choke the control linkage mechanism of a kind of diaphragm type carburator and cold of an air throttle-choke
Dynamic fast-idle speed sets up an organization to form one, when choke gate valve rotates to full close position from open position, the choke-air throttle
Cold start sets up an organization can automatically open throttler valve one angle bigger than idle position slightly, be at fast idle
Fast position；
The air throttle and choke valve control mechanism of carburetor include a rotatable Air strangler spindle that choke is housed, and one can
Rotation and solar term axis equipped with air throttle, one for rotating the choke from being opened to closed position and be fixed on
Choke door handle on Air strangler spindle（13）, one carry air throttle torsional spring and for rotating the air throttle from idling
Position to open position and the throttle grip that is fixed on throttle plate pin（5）, and there are one bear the torsion of fast-idle speed return
Spring（12）The fast-idle speed handle that can be freely rotated on Air strangler spindle（11）, secondly, choke is passed through into choke door handle
Make it from standard-sized sheet to fully closed with Air strangler spindle, fast-idle speed handle is inserted in above-mentioned described by fast-idle speed return spring under normal conditions
It on the Air strangler spindle of deflection, and can be waved in travel paths there are one free end, travel paths are under normal circumstances
Travel paths with the free end of described throttle grip are coplanar and intersect have on described free end
A groove be combined with each other for fast-idle speed handle and throttle grip, in described choke door handle and described air throttle
After handle is detached from linkage, fast-idle speed handle and throttle grip are in fast-idle speed position at this time, and pass through described return bullet
Spring is maintained in this groove,
Here, having one of in the choke door handle and fast-idle speed handle or both boss, the boss operable
Property by handle one of in the connection choke door handle and fast-idle speed handle, choke door handle described in this way
So that choke is closed rotation and be granted by described fast-idle speed handle towards binding site common rotation,
It is characterized in that：There are one the faces that can be linked with throttle grip for setting in choke door handle, may insure in linkage
Choke air throttle in the case of fully closed opens an angle.
2. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that：Resistance
Throttle lever（13）There are one energy and throttle grips for upper setting（5）The face of linkage may insure choke in linkage（9）?
Air throttle in the case of fully closed（3）One angle of opening, and throttle grip（5）With fast-idle speed handle（11）Groove be not at
Linkage status has gap between them.
3. the air throttle of the diaphragm type carburator and choke control linkage mechanism as described in claim 1, feature exists
In：When linkage mechanism links, choke is opened（9）, make choke door handle（13）With throttle grip（5）Between linkage it is de-
From rear, fast-idle speed handle（11）With throttle grip（5）Linkage status is established again, and air throttle is kept to be opened in fast-idle speed
Spend position.
4. the air throttle of the diaphragm type carburator and choke control linkage mechanism as described in claim 1, feature exists
In：Choke door handle（13）And throttle grip（5）It has been respectively subjected to, to the torsion for establishing linkage status, make choke door handle
（13）And throttle grip（5）Linkage is established in coupling.
5. the air throttle of the diaphragm type carburator and choke control linkage mechanism as described in claim 1, feature exists
In：Choke door handle（13）With fast-idle speed handle（11）Above at least one is equipped with boss, and fast-idle speed handle above（11）It holds
Carry torsional spring（12）Torsion always with choke door handle（13）It is in contact, is pulling choke door handle（13）Make choke（9）By
In standard-sized sheet to fully closed closing process, fast-idle speed handle is pushed（11）It is rotated to linkage direction, and pushes throttle grip（5）Also to
Linkage direction rotates, and finally makes choke door handle（13）With throttle grip（5）In linkage.
6. the air throttle of the diaphragm type carburator and choke control linkage mechanism as described in claim 1, feature exists
In：Fast-idle speed handle（11）One end be set as circular hole, be mounted in Air strangler spindle（7）On, and can be in Air strangler spindle（7）Upper freedom
Rotation, the other end are set as structure with groove, can be with throttle grip（5）Generate linkage.
7. the air throttle of the diaphragm type carburator and choke control linkage mechanism as described in claim 1, feature exists
In：Throttle grip（5）It is equipped with non-circular geometric face（5-1）And non-circular geometric face（5-2）.
8. the air throttle of the diaphragm type carburator and choke control linkage mechanism as described in claim 1, feature exists
In：Choke door handle（13）On be additionally provided with non-circular geometric face（13-1）And non-circular geometric face（13-2）.
9. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that：Section
Air valve shaft（1）Top be equipped with non-circular geometric face（1-1）And non-circular geometric face（1-2）.
10. the air throttle and choke of diaphragm type carburator as claimed in claim 9 control linkage mechanism, it is characterised in that：
Throttle plate pin（1）Non-circular geometric face（1-1）, non-circular geometric face（1-2）Respectively with throttle grip（5）On non-circular geometric face（5-1）,
Non-circular geometric face（5-2）With merging by screw（6）Fastening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018104389093 | 2018-05-09 | ||
| CN201810438909 | 2018-05-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108798936A true CN108798936A (en) | 2018-11-13 |
| CN108798936B CN108798936B (en) | 2024-04-26 |
Family
ID=
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