CN209483505U - 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
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- CN209483505U CN209483505U CN201821203633.2U CN201821203633U CN209483505U CN 209483505 U CN209483505 U CN 209483505U CN 201821203633 U CN201821203633 U CN 201821203633U CN 209483505 U CN209483505 U CN 209483505U
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Abstract
The utility model 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-up fast-idle speed；Air strangler spindle successively installs choke door handle, torsional spring, fast-idle speed handle, choke axle sleeve and choke 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 where fully closed opens an angle when air throttle and choke control linkage mechanism linkage, the groove of throttle grip and fast-idle speed handle is not at linkage status, has gap between them；Choke can fully closed and consistency it is good, it hears when starting and again opens choke after engine issues " POP " sound, choke door handle is detached from throttle grip, throttle grip is coupled with fast-idle speed handle in groove, air throttle (throttle) aperture consistency is good, improves the consistency of starting performance and fast idle speed.
Description
Technical field
The present invention relates to a kind of diaphragm type carburators, air throttle and resistance in particular to a kind of diaphragm type carburator
Airdoor control linkage mechanism.
Background technique
Carburetor is the machinery that mixes with air a certain proportion of gasoline under the vacuum action that engine operation 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 enter 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), rotates choke door handle (13) counterclockwise, due to choke door handle (13)
Non-circular, to drive Air strangler spindle (7) and fix by screw (8) choke (9) is provided with Air strangler spindle (7) connecting portion
It rotates jointly, at the same time, there is (11-1) of a block (13-1) and fast-idle speed handle (11) on choke door handle (13)
Contact is pushed 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 power effect, when certain position is arrived in choke (9) closing, fast-idle speed handle (11) and (5-1) of throttle control arm (5) are connect
Touch and push throttle plate pin (1) and by the second screw (2) fixed air throttle (3) with choke (9) progressively close off by
It gradually opens, (5-1) falls into ratchet (11-2) and generate coupling, in order to ensure (5-1) of throttle control arm can fall into fast-idle speed
In the ratchet (11-2) of handle (11), and must cannot be complete when choke (9) and ontology choke aperture of door (14-1) design at this time
It closes, be also impossible to close just in specific implementation: when not having overtravel, (5-1) of throttle control arm (5) can not be fallen
Enter 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 closes, it is necessary to have overtravel (as shown in figure 26), the inner hole (14-1) on choke (9) and ontology (14) is when in fast-idle speed at this time
Under the action of torsional spring on handle, choke cannot be completely closed and be sealed, i.e., overtravel when can generate gap.Due to each
The accumulation tolerance of part causes the location consistency of choke (9) poor, as shown in Figure 26,28, under the promotion of external force, and choke
When door completely closes, when fast-idle speed handle and throttle grip link, just produced between fast-idle speed handle and throttle grip
Gap.As shown in Figure 27,29, after losing external force promotion, Air strangler spindle (7) is counter under the effect of torsional spring power to be pushed away, and causes choke
A part is opened, to influence the starting performance of engine.After fast-idle speed linkage, had between choke and ontology air inlet big
Small not equal gap, choke are unable to completely close, and air inflow is variant when leading to engine start, the starting performance of engine
It differs greatly.
Referring next to another structural schematic diagram in the prior art shown in Figure 30-33, the linkage mechanism and above-mentioned connection
The difference of motivation structure is fast-idle speed handle, and top has inclined-plane.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 is a block (13- on 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) contact and push throttle plate pin component (1) and by the second screw (2) fixed air throttle (3) with choke (9) gradually
It closes and is gradually opened, when the arm (5-1) of throttle grip (5) slides into fast-idle speed along face (11-3) of fast-idle speed handle (11)
When (11-2) of handle (11), the inclined-plane (11-2) of arm (5-1) contact fast-idle speed handle (11) of throttle grip (5), and produce
Raw preliminary coupling, continues to pull choke door handle (13), when choke (9) and ontology (14) completely close, air throttle hand
The arm (5-1) of handle (5) slides to some point (as shown in figure 32) on the inclined-plane (11-2) of fast-idle speed handle (11), at this time solar term
The arm (5-1) that the open position of door 3 depends on throttle grip (5) slides on the inclined-plane (11-2) of fast-idle speed handle (11)
Position, each accumulation tolerance will lead to the arm (5-1) of the product throttle grip (5) of volume production in fast-idle speed handle (11)
Position on inclined-plane (11-2) all can be inconsistent, so the opening size comparison of coherence of air throttle (3) is poor；Fast-idle speed handle
(11) under the action of throttle grip (5), torsion drives choke (9) to close but due to the presence of foozle counterclockwise,
There is uncertainty in the position of air throttle (3), influence the starting performance of engine.The disadvantage is that the accumulation due to each is public
Difference, after fast-idle speed linkage, air throttle (throttle) opening size differs greatly, fast after leading to engine start consistency difference and starting
Engine speed scattered error when idling is big.
Summary of the invention
Based on the above issues, the present invention provides the air throttle and choke control linkage mechanism of a kind 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 open
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 diaphragm type carburator of the invention and an air throttle-choke
Cold start-up 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-up sets up an organization and throttler valve can be opened automatically to a position bigger than idle position slightly, makes at its
In fast-idle speed position.The air throttle and choke valve control mechanism of carburetor include the rotatable choke that choke is housed
Axis, a throttle plate pin rotatable and that air throttle is housed, 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
The fast-idle speed handle that can be freely rotated on Air strangler spindle of position torsional spring, secondly, choke is passed through choke door handle and resistance
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 have a free end that can wave in travel paths, 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 be for be combineding with each other, here, wherein one or two in the choke door handle and fast-idle speed handle have it is convex
Platform, the boss operability by one of handle 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
It is provided with the face that can be linked with throttle grip on throttle lever, may insure choke in fully closed situation in linkage
Lower air throttle opens an angle.
Preferably, the face that can be linked with throttle grip is provided in the choke door handle, it can in linkage
To ensure that choke air throttle in the case where 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 in linkage mechanism linkage, choke is opened, choke door handle is made
After linkage between throttle grip is detached from, fast-idle speed handle and throttle grip establish linkage status again, and keep
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 couples choke door handle and throttle grip 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 standard-sized sheet into fully closed closing process, fast-idle speed handle is pushed to rotate to linkage direction, and push throttle grip also Xiang Liandong
Direction rotates, and choke door handle and throttle grip is finally made to be in linkage.
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-up set up an organization and throttler valve can automatically be opened to one slightly than fast-idle speed position
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, non-circular geometric face is additionally provided 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 the first screw.
In any of the above-described scheme preferably, the junction of the throttle grip and throttle plate pin is equipped with opening gear
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, non-circular in the non-circular geometric face and Air strangler spindle in the choke door handle
The cooperation of shape face, drives Air strangler spindle 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 of the fast-idle speed handle and Air strangler spindle 7
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 having a free end that can wave in travel paths, 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, wherein one or two in the choke door handle and fast-idle speed handle
With boss, which passes through one of handle in connection choke door handle and fast-idle speed handle, choke
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 is 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 on throttle plate pin by the second screw.
Detailed description of the invention
It will now be described such as preferred but non-limiting embodiment of the invention, these and other characteristic aspects of the invention
It will become obvious with advantage when reference attached drawing reads detailed further below, in which:
Fig. 1 is the air throttle of diaphragm type carburator according to the invention and the preferred embodiment of choke control linkage mechanism
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 the state diagram of fast-idle speed handle contact 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 and fast-idle speed handle just contact 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 institute 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 behind highest point.
Figure 14-1 controls Figure 14 institute 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 institute 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 institute 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 behind highest point and throttle grip contact condition figure.
Figure 17-1 controls Figure 17 institute 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 fast-idle speed handle and throttle grip link when state diagram.
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 to full-gear rotation subject throttle handle and fast-idle speed handle from fast idle mode.
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 institute 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 cross-sectional view 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 diagram 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 power 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 embodiment
The following description is substantially only exemplary and is not intended to the limitation disclosure, application or purposes.It should
Understand, in all the attached drawings, corresponding appended drawing reference indicates identical or corresponding component and feature.
Referring now to the drawings, Fig. 1-Fig. 4 describes the shape assumption diagram of carburetor of the 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 by air throttle 3, choke 9 and air throttle-choke cold start-up
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；Choke door handle 13 is equipped with one and the linkage of choke door handle 13
7th non-circular geometric face 13-1 and the 8th non-circular geometric face 13-2, in the linkage of fast-idle speed mechanism, choke 9 is in the case where fully closed
Valve 3 opens an angle, and the groove of throttle grip 5 and fast-idle speed handle 11 is not at linkage status, between them
There is gap；Choke 9 can fully closed and consistency it is good, hear on startup engine issue " POP " sound after choke is beaten again
When opening, 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 saves
Valve (throttle) aperture consistency is good, greatly improves the starting performance of engine and the consistency of fast idle speed.
When choke 9 rotates to full close position from open position, the cold start-up of choke-air throttle sets up an organization can be automatic
Throttler valve is opened a position also bigger than fast-idle speed position by ground, is more easier the starting of engine.
Air strangler spindle 7 is that can be rotated 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 7th non-circular geometric face 13-1, the 8th non-circular geometric face 13-2 in the choke door handle 13 points
Do not cooperate with the 5th non-circular geometric face 7-1, the 6th non-circular geometric face 7-2 on Air strangler spindle 7, Air strangler spindle 7 is driven to rotate together (such as
Shown in Fig. 4).
In the present embodiment, the throttle grip 5 is equipped with third non-circular geometric face 5-1 and the 4th non-circular geometric face 5-2.And
Matched the first non-circular geometric face 1-1 and the second non-circular geometric face 1-2 are equipped on throttle plate pin.
In the present embodiment, the first non-circular geometric face 1-1 of the throttle plate pin 1, the second non-circular geometric face 1-2 respectively with solar term
Third non-circular geometric face 5-1, the 4th non-circular geometric face 5-2 on door handle 5 are fastened by upper first screw 6 (such as Fig. 3 institute with merging
Show).
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 the 5th non-circular geometric face 7-1, the 6th non-circular geometric face 7-2 and cylinder
Face 7-3 (as shown in Figure 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 has one
Free end can wave in travel paths, and the travel paths of the free end of travel paths and throttle grip 5 are coplanar
And it intersects.
In the present embodiment, wherein one or two in the choke door handle 13 and fast-idle speed handle 11 is with convex
Platform, the boss operability pass through one of handle in connection choke door handle 13 and fast-idle speed handle 11, choke
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
Door is 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 throttle plate pin 1 by the second screw 2.
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 fast-idle speed handle 11 to rotate counterclockwise.
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
Corresponding with air throttle 3 to do clockwise movement, air throttle is gradually rotated from idling to open position direction.
Throttle opening maximum position state diagram such as Figure 13, 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 contact 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 part 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, so that fast-idle speed handle 11 be pushed also to 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 rotation.
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 rotates counterclockwise 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 contact 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 operating throttle from fast-idle speed to when fully open position rotation, i.e., throttle grip is stirred clockwise
In the vertex 11-5 of fast-idle speed handle 11, throttle grip 5 is in critical state 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 movement of the invention 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 with reference to attached drawing, it will be appreciated that, these descriptions are only exemplary, and
It is non-to be used to limit application of the 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 where invention protection scope and spirit.
Claims (17)
1. air throttle and choke the control linkage mechanism of an a kind of diaphragm type carburator and air throttle-choke is cold opens
Dynamic fast-idle speed sets up an organization to form one, including air throttle (3), choke (9), choke door handle (13), is fixed on air throttle
What throttle grip (5) on axis (1) and one bore fast-idle speed return torsional spring (12) can be free on Air strangler spindle (7)
Wherein one or two in choke door handle and fast-idle speed handle described in the fast-idle speed handle (11) of rotation has boss, should
One of handle in the choke door handle (13) and fast-idle speed handle (11) described by connection of boss operability,
It is characterized in that: being provided with the face that can be linked with throttle grip in choke door handle, may insure choke in linkage
Air throttle opens an angle in the case where fully closed.
2. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that: resistance
It is provided with the face that can be linked with throttle grip (5) on throttle lever (13), may insure that choke (9) exists in linkage
Air throttle (3) opens an angle in the case where fully closed, and throttle grip (5) and the groove of fast-idle speed handle (11) are not at
Linkage status has gap between them.
3. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that: resistance
At least one is equipped with boss above on throttle lever (13) and fast-idle speed handle (11), and fast-idle speed handle (11) carries torsional spring
(12) torsion is in contact with choke door handle (13) always.
4. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that: fast
One end of idling handle (11) is set as circular hole, on Air strangler spindle (7), and can rotate freely on Air strangler spindle (7),
The other end is set as structure with groove, can generate linkage with throttle grip (5).
5. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that: section
Valve handle (5) is equipped with third non-circular geometric face (5-1) and the 4th non-circular geometric face (5-2).
6. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that: resistance
The 7th non-circular geometric face (13-1) and the 8th non-circular geometric face (13-2) are additionally provided on throttle lever (13).
7. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that: section
The top of air valve shaft (1) is equipped with the first non-circular geometric face (1-1) and the second non-circular geometric face (1-2).
8. the air throttle and choke of diaphragm type carburator as claimed in claim 7 control linkage mechanism, it is characterised in that: section
The first non-circular geometric face (1-1), the second non-circular geometric face (1-2) of air valve shaft (1) are non-circular with the third on throttle grip (5) respectively
Shape face (5-1), the 4th non-circular geometric face (5-2) are fastened with merging by the first screw (6).
9. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that: resistance
Axle of the air door (7) is equipped with the 5th non-circular geometric face (7-1), the 6th non-circular geometric face (7-2) and cylindrical surface (7-3).
10. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that:
The 7th non-circular geometric face (13-1), the 8th non-circular geometric face (13-2) in choke door handle (13) is respectively and on Air strangler spindle (7)
5th non-circular geometric face (7-1), the 6th non-circular geometric face (7-2) are integrated with fastening is merged, and Air strangler spindle (7) is driven to rotate together.
11. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that:
Fast-idle speed handle (11) includes cylinder hole face (11-7), card slot (11-3), vertex (11-5) and multiple sides.
12. the air throttle and choke of diaphragm type carburator as claimed in claim 11 control linkage mechanism, it is characterised in that:
The cylinder hole face (11-7) of fast-idle speed handle (11) and the cylindrical surface (7-3) of Air strangler spindle (7) cooperate；Fast-idle speed handle (11) exists
Air strangler spindle is freely rotated on (7).
13. the air throttle and choke of diaphragm type carburator as claimed in claim 12 control linkage mechanism, it is characterised in that:
The junction of fast-idle speed handle (11) and Air strangler spindle (7) is equipped with choke axle sleeve (10).
14. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that:
Fast-idle speed handle (11) is mounted in by the Air strangler spindle (7) of torsional spring (12) deflection, and has a free end in travel paths
It can wave, the travel paths of travel paths and the free end of throttle grip (5) are coplanar and intersect.
15. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that:
Wherein one or two in choke door handle (13) and fast-idle speed handle (11) has boss, which passes through
One of handle in choke door handle (13) and fast-idle speed handle (11) is connected, choke door handle (13) makes choke (9)
It closes rotation and is granted by fast-idle speed handle (11) towards linkage position common rotation.
16. the air throttle and choke of the diaphragm type carburator as described in claim 1 or 15 control linkage mechanism, feature exists
In: by choke door handle (13) and Air strangler spindle (7), the choke (9) when rotating to linkage status is from complete to choke (9)
It reaches fully closed.
17. the air throttle and choke of diaphragm type carburator as described in claim 1 control linkage mechanism, it is characterised in that:
Air throttle (3) is fixed on throttle plate pin (1) by the second screw (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821203633.2U CN209483505U (en) | 2018-05-09 | 2018-07-27 | The air throttle and choke of diaphragm type carburator control linkage mechanism |
| US16/522,670 US11022074B2 (en) | 2018-07-27 | 2019-07-26 | Throttle and choke control linkage mechanism of diaphragm type carburetor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686555X | 2018-05-09 | ||
| CN201820686555 | 2018-05-09 | ||
| CN201821203633.2U CN209483505U (en) | 2018-05-09 | 2018-07-27 | The air throttle and choke of diaphragm type carburator control linkage mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN209483505U true CN209483505U (en) | 2019-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821203633.2U Active CN209483505U (en) | 2018-05-09 | 2018-07-27 | The air throttle and choke of diaphragm type carburator control linkage mechanism |
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| CN (1) | CN209483505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798936A (en) * | 2018-05-09 | 2018-11-13 | 薛美英 | The air throttle and choke of diaphragm type carburator control linkage mechanism |
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2018
- 2018-07-27 CN CN201821203633.2U patent/CN209483505U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798936A (en) * | 2018-05-09 | 2018-11-13 | 薛美英 | The air throttle and choke of diaphragm type carburator control linkage mechanism |
| CN108798936B (en) * | 2018-05-09 | 2024-04-26 | 薛美英 | Throttle and choke valve control linkage mechanism of diaphragm carburetor |
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