CN205025638U - Automatic choke valve drive structure - Google Patents
Automatic choke valve drive structure Download PDFInfo
- Publication number
- CN205025638U CN205025638U CN201520784657.1U CN201520784657U CN205025638U CN 205025638 U CN205025638 U CN 205025638U CN 201520784657 U CN201520784657 U CN 201520784657U CN 205025638 U CN205025638 U CN 205025638U
- Authority
- CN
- China
- Prior art keywords
- throttle shaft
- crank
- cam
- strangler spindle
- air strangler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a pair of automatic choke valve drive structure, including the throttle shaft who hinders the air throttle of throttle shaft and engine, throttle shaft with hinder the link gear that throttle shaft formed the linkage, the link gear is including setting up on throttle shaft and by throttle shaft driven cam, the cam is in order driving hinder the setting of throttle shaft pivoted mode, through throttle shaft with hinder the link gear that throttle shaft formed the linkage, during the cold start, it is rotatory to the low -speed direction that choke door baffle plate complete closure, heat engine in -process, speed control mechanism will drive throttle shaft and since throttle shaft with hinder the link gear that throttle shaft formed the linkage, drive that to hinder throttle shaft rotatory, make choke door baffle plate open an angle, can realize stably, the automatic control choke valve, guarantee that the throttle shaft 0 performance is excellent to simple structure, low cost.
Description
Technical field
The utility model relates to a kind of field of internal combustion engine, particularly relates to a kind of auto chock door drive mechanism.
Background technique
Chock plate is the starting arrangement in motor on Carburetor, is also to be contained in the valve that of carburetor air mouth place can stop air intake; When cold starts, close chock plate, the concentration of mixed gas can be strengthened, motor is more easily started.And existing common engine is generally divided into Non-follow control chock plate and automatically control chock plate, when manual-start engine, need operator's manual-lock chock plate, after engine start, manual unlocking chock plate again, complicated operation, operator needs the using skill understanding chock plate well to start and to use motor; And automatically control chock plate and generally comprise air blade and control chock plate and automatically controlled air door, use air blade to control chock plate, benefit is easy to operate, shortcoming is when piloting engine, and existing structure makes air blade by wind affect, and can produce interference to chock plate, make it rock, affect starting performance; And electric choke, its cost is just higher, is not suitable for the general gasoline engines that price is relatively low.
Therefore, be necessary to provide a kind of auto chock door drive mechanism, can realize stablizing, automatically controlling chock plate, ensure that startup performance of engine is excellent, and structure is simple, with low cost.
Model utility content
In view of this, a kind of auto chock door drive mechanism that the utility model is to provide, under various working condition, can realize stablizing, automatically controlling chock plate, ensure that startup performance of engine is excellent, and structure is simple, with low cost.
A kind of auto chock door drive mechanism that the utility model provides, comprises the throttle plate pin of the closure of Air strangler spindle and motor, and described throttle plate pin and described Air strangler spindle form the linking mechanism of interlock; During cold start-up, chock plate baffle plate is closed completely, in heat engine process, driving throttle plate pin rotates to low speed direction by speed regulating mechanism, the linking mechanism of interlock is formed by throttle plate pin and Air strangler spindle, drive Air strangler spindle rotates, chock plate baffle plate is made to open an angle, can realize stablizing, automatically controlling chock plate, guarantee startup performance of engine is excellent, and simple, the with low cost described linking mechanism of structure comprises and to be arranged on throttle plate pin and by the shaft-driven cam of closure, described cam is arranged in the mode that can drive described Air strangler spindle and rotate.
Further, described linking mechanism comprises and to be arranged on throttle plate pin and by the shaft-driven cam of closure, and described cam is arranged in the mode that can drive described Air strangler spindle and rotate; Utilize actuated by cams Air strangler spindle to rotate, structure is simple, easy for installation, and avoids chock plate to rock owing to producing by aspiration pressure, ensures the concentration stabilize of mixed gas, improves engine warming up performance.
Further, described linking mechanism also comprises crankrocker mechanism, and the rocking bar of described crankrocker mechanism is arranged at Air strangler spindle in the mode that can drive Air strangler spindle and rotate, described crank by actuated by cams thus drive rocker swing; By the setting of crankrocker mechanism, the rotation of throttle plate pin is converted into the swing of rocking bar, and then regulates the aperture of choke axle bumper plate.
Further, described crankrocker mechanism also comprises with rocking bar with can the crank pin that coordinates of the mode single-degree-of-freedom of longitudinal sliding motion, and described crank is articulated with closure housing with swingable mode single-degree-of-freedom and drives with crank pin and is connected; While can changing rocking bar sense of rotation, improve drive efficiency and the performance of described cam, steady, smooth and easy when ensureing that driving structure works, make compact structure.
Further, described crank by a rotating assembly and carbureter body single-degree-of-freedom hinged, described rotating assembly comprises the stationary axle being fixed on carbureter body and the axle sleeve be rotationally connected with stationary axle, and described crank is fixedly connected with axle sleeve; By axle sleeve is coated at stationary axle, stability when utilizing stationary axle guarantee axle sleeve to rotate, and then stability during guarantee crank-swinging, be beneficial to driving structure entirety smooth and easy.
Further, described crank is fixedly connected with and is provided with journal stirrup, and the V-arrangement that described journal stirrup and crank are formed jointly to cam working face contains caves in; During cold start-up, chock plate baffle plate is closed completely, the cam on throttle plate pin with have very little interval between journal stirrup or just contacted; In heat engine process, the cam promoted on throttle plate pin rotates to low speed direction by speed regulating mechanism, the smooth arc surface of cam contacts concurrent raw relative movement with journal stirrup, due to two surface of contact smoother, rub very little, closure cam will drive crank to rotate around the shaft, and the crank pin on crank is arranged in the bar shaped chute of rocking bar, drive Air strangler spindle rotates, and makes chock plate baffle plate open an angle; Coordinate crank to play position-limiting action to cam by journal stirrup and ensure the driving precision of cam, simultaneously compact structure the opening angle of adjustable chock plate baffle plate when actuated by cams.
Further, described Air strangler spindle is provided with reduction torsion spring; When reduction torsion spring can ensure after engine cutoff cooling, chock plate is closed, and stops impurity to enter Carburetor, is that next cold start-up is ready simultaneously, ensures the stability of the chock plate when actuated by cams simultaneously.
The beneficial effects of the utility model are: a kind of auto chock door drive mechanism disclosed in the utility model, the linking mechanism of interlock is formed by throttle plate pin and Air strangler spindle, during cold start-up, chock plate baffle plate is closed completely, in heat engine process, driving throttle plate pin rotates to low speed direction by speed regulating mechanism, because throttle plate pin and Air strangler spindle form the linking mechanism of interlock, drive Air strangler spindle rotates, chock plate baffle plate is made to open an angle, can realize stablizing, automatically controlling chock plate, ensure that startup performance of engine is excellent, and structure be simple, with low cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model Air strangler spindle.
Embodiment
Fig. 1 is structural representation of the present utility model, Fig. 2 is the structural representation of the utility model Air strangler spindle, as shown in the figure, a kind of auto chock door drive mechanism in the present embodiment, comprise the throttle plate pin 2 of the closure of Air strangler spindle 1 and motor, described throttle plate pin 2 and described Air strangler spindle 1 form the linking mechanism of interlock; Linking mechanism can select the existing linking mechanism of cam linkage, during cold start-up, chock plate baffle plate is closed completely, and in heat engine process, driving throttle plate pin 2 rotates to low speed direction by speed regulating mechanism, the linking mechanism of interlock is formed by throttle plate pin 2 and Air strangler spindle 1, drive Air strangler spindle 1 to rotate, make chock plate baffle plate open an angle, can realize stablizing, automatically controlling chock plate, guarantee startup performance of engine is excellent, and structure is simple, with low cost and be beneficial to popularization.
In the present embodiment, described linking mechanism comprises and being arranged on throttle plate pin 2 and the cam 3 driven by throttle plate pin 2, and described cam 3 is arranged in the mode that can drive described Air strangler spindle 1 and rotate; The molded line of described cam 3 is an arc section, and the center of circle of described arc section is positioned at the center line of throttle plate pin 2; Remain on certain aperture after the arc section of cam 3 makes chock plate baffle plate be opened; Utilize cam 3 to drive Air strangler spindle 1 to rotate, structure is simple, easy for installation, and avoids chock plate to rock owing to producing by aspiration pressure, ensures the concentration stabilize of mixed gas, improves engine warming up performance.
In the present embodiment, described linking mechanism also comprises crankrocker mechanism, and the rocking bar 4 of described crankrocker mechanism is arranged at Air strangler spindle 1 in the mode that can drive Air strangler spindle 1 and rotate, and described crank 5 is driven by cam 3 thus drive rocker 4 swings; By the setting of crankrocker mechanism, the rotation of throttle plate pin 2 is converted into the swing of rocking bar 4, and then regulates the aperture of choke axle bumper plate.
In the present embodiment, described crankrocker mechanism also comprises with rocking bar 4 with can the crank pin 6 that coordinates of the mode single-degree-of-freedom of longitudinal sliding motion, and described crank 5 is articulated with carbureter body with swingable mode single-degree-of-freedom and drives with crank pin 6 and is connected; Longitudinally represent the length direction of rocking bar 4, certainly, the crank 5 in the utility model is articulated with closure housing by a rotating shaft; Rotating shaft is connected with closure housing into rotation; Described rocking bar 4 can be arranged the bar shaped chute 7 that is slidably matched with crank pin 6 to ensure that crank pin 6 is slidably matched along the mode single-degree-of-freedom of rocking bar 4 longitudinal sliding motion; Crank pin 6 moves and the gradual change of rocking bar 4 pairs of Air strangler spindle 1 braking torques can be made to balance the resisting moment of the suffered reduction torsion spring stablized of Air strangler spindle 1 in bar shaped chute 7, improve drive efficiency and the performance of described cam 3, steady, smooth and easy when ensureing that driving structure works simultaneously, avoid chock plate baffle plate to rock.
In the present embodiment, described crank by a rotating assembly and carbureter body single-degree-of-freedom hinged, described rotating assembly comprises the stationary axle 8 being fixed on carbureter body and the axle sleeve 9 be rotationally connected with stationary axle 8, and described crank is fixedly connected with axle sleeve 9; By axle sleeve 9 is coated at stationary axle 8, the stability utilizing stationary axle 8 to ensure when axle sleeve 9 rotates, and then stability when ensureing crank-swinging, be beneficial to driving structure entirety smooth and easy.
In the present embodiment, described crank is fixedly connected with and is provided with journal stirrup 10, and the shape that described journal stirrup 10 and crank are formed jointly to cam 3 working surface contains is caved in; As shown in the figure, described journal stirrup 10 is fixedly installed in the outer end side surface of crank, and during cold start-up, chock plate baffle plate is closed completely, the cam 3 on throttle plate pin 2 with have very little interval between journal stirrup 10 or just contacted; In heat engine process, the cam 3 promoted on throttle plate pin 2 rotates to low speed direction by speed regulating mechanism, the smooth arc surface of cam 3 contacts concurrent raw relative movement with journal stirrup 10, due to two surface of contact smoother, rub very little, closure cam 3 will drive crank to rotate around the shaft, and the crank pin 6 on crank is arranged in the bar shaped chute 7 of rocking bar 4, drive Air strangler spindle 1 to rotate, make chock plate baffle plate open an angle; By rationally arranging journal stirrup 10, reduction torsion spring matches with crank, plays position-limiting action and ensure the driving precision of cam 3 to cam 3, simultaneously compact structure the opening angle of adjustable chock plate when cam 3 drives.
In the present embodiment, described Air strangler spindle 1 is provided with reduction torsion spring; The initial mounting state of reduction torsion spring is for making chock plate flapper closure, when reduction torsion spring can ensure after engine cutoff cooling, chock plate is closed, stop impurity to enter Carburetor, be that next cold start-up is ready simultaneously, also ensure the stability of the chock plate baffle plate when cam 3 drives; Reduction torsion spring is prior art, does not repeat them here.
What finally illustrate is, above model utility is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. an auto chock door drive mechanism, comprises the throttle plate pin of the closure of Air strangler spindle and motor, it is characterized in that: described throttle plate pin and described Air strangler spindle form the linking mechanism of interlock.
2. auto chock door drive mechanism according to claim 1, is characterized in that: described linking mechanism comprises and to be arranged on throttle plate pin and by the shaft-driven cam of closure, and described cam is arranged in the mode that can drive described Air strangler spindle and rotate.
3. auto chock door drive mechanism according to claim 2, it is characterized in that: described linking mechanism also comprises crankrocker mechanism, the rocking bar of described crankrocker mechanism is arranged at Air strangler spindle in the mode that can drive Air strangler spindle and rotate, described crank by actuated by cams thus drive rocker swing.
4. auto chock door drive mechanism according to claim 3, it is characterized in that: described crankrocker mechanism also comprises with rocking bar with can the crank pin that coordinates of the mode single-degree-of-freedom of longitudinal sliding motion, and described crank is articulated with carbureter body with swingable mode single-degree-of-freedom and drives with crank pin and is connected.
5. auto chock door drive mechanism according to claim 4, it is characterized in that: described crank by a rotating assembly and carbureter body single-degree-of-freedom hinged, described rotating assembly comprises the stationary axle being fixed on carbureter body and the axle sleeve be rotationally connected with stationary axle, and described crank is fixedly connected with axle sleeve.
6. the auto chock door drive mechanism according to the arbitrary claim of claim 1 to 5, is characterized in that: described crank is fixedly connected with and is provided with journal stirrup, and the V-arrangement that described journal stirrup and crank are formed jointly to cam working face contains caves in.
7. auto chock door drive mechanism according to claim 6, is characterized in that: described Air strangler spindle is provided with reduction torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784657.1U CN205025638U (en) | 2015-10-10 | 2015-10-10 | Automatic choke valve drive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784657.1U CN205025638U (en) | 2015-10-10 | 2015-10-10 | Automatic choke valve drive structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025638U true CN205025638U (en) | 2016-02-10 |
Family
ID=55258177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520784657.1U Expired - Fee Related CN205025638U (en) | 2015-10-10 | 2015-10-10 | Automatic choke valve drive structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025638U (en) |
-
2015
- 2015-10-10 CN CN201520784657.1U patent/CN205025638U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20211010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |