CN204458098U - Engine and carburetor automatic choke valve control mechanism - Google Patents
Engine and carburetor automatic choke valve control mechanism Download PDFInfo
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- CN204458098U CN204458098U CN201520052445.4U CN201520052445U CN204458098U CN 204458098 U CN204458098 U CN 204458098U CN 201520052445 U CN201520052445 U CN 201520052445U CN 204458098 U CN204458098 U CN 204458098U
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- pull bar
- engine
- driving arm
- chock plate
- control mechanism
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Abstract
The utility model provides a kind of automatic control mechanism of engine and carburetor chock plate, guarantees that motor can successfully successfully start under cold and heat engine state.This control mechanism comprises the first pull bar, first driving arm, airdoor control blade, second pull bar, second driving arm and thermal distortion switch, first pull bar can drive chock plate to rotate, the end of the first pull bar is connected with the end of the first driving arm, airdoor control blade is rotatably arranged on the engine by back shaft, first driving arm and airdoor control blade are oppositely arranged along back shaft and are fixed together, second pull bar can drive chock plate to rotate, the end of the second pull bar is connected with one end of the second driving arm, the other end of the second driving arm is connected on described thermal distortion switch, thermal distortion switch-linear hybrid is at the outer surface of motor.
Description
Technical field
The utility model relates to engine technology, is specifically related to a kind of engine and carburetor automatic choke valve control mechanism.
Background technique
Carburetor is a vitals of motor, and its effect is mixed with air by a certain amount of gasoline, to make normal working of engine.Chock plate is an annex on Carburetor, is usually arranged on the suction port of Carburetor.Its effect closes suction port when engine cold-start, reduce the air quantity entering Carburetor mixing chamber, the degree of vacuum at carburetor throat place is improved, thus the gasoline that energy sucking-off is more, increase the concentration of mixed gas in mixing chamber, during to meet engine start, needs are compared with the requirement of rich mixture, improve the startability of motor.And after normal working of engine, needing to open chock plate, the air quantity entering Carburetor mixing chamber is increased, and dilute gas mixture, is beneficial to the Thorough combustion of mixed gas, prevents mixed gas overrich from motor is run bad or overheated, discharges waste gas not up to standard.By above-mentioned known, the unlatching of chock plate must be timely, flexible, and to ensure to start when normally working, chock plate can be in complete opening state.
In actual use; motor is after stable operation a period of time; enter the steady state of heat engine; but often because some inevitable factors need flame-out shutdown for a moment; when again starting; motor is still in heat engine state; engine temperature is higher; therefore the gasoline in Carburetor mixing chamber is very easy to vaporization; cause the mixture strength in Carburetor mixing chamber higher; in this case, if chock plate is also in closed condition will cause mixed gas overrich, engine start difficulty is caused maybe cannot to start.And the normally manual control keying of traditional chock plate, no matter be that cold starts or warm boot, all there is inconvenient operation, start the problem of very flexible.
Model utility content
The utility model provides a kind of automatic control mechanism of engine and carburetor chock plate, be held open with carburetter choke during thermal starting to guarantee that motor carburetter choke when cold start-up is closed automatically, guarantee that motor can successfully successfully start under cold and heat engine state.
The utility model scheme is as follows:
Engine and carburetor automatic choke valve control mechanism, comprise carburetter choke, chock plate control arm, chock plate is contained on chock plate control arm, chock plate control arm periphery is provided with reduction torsion spring, the utility model critical component is the first pull bar, first driving arm, airdoor control blade, second pull bar, second driving arm and thermal distortion switch, first pull bar can drive chock plate to rotate, the end of the first pull bar is connected with the end of the first driving arm, airdoor control blade is rotatably arranged on the engine by back shaft, first driving arm and airdoor control blade are oppositely arranged along back shaft and are fixed together, second pull bar can drive chock plate to rotate, the end of the second pull bar is connected with one end of the second driving arm, the other end of the second driving arm is connected on described thermal distortion switch, described thermal distortion switch-linear hybrid is at the outer surface of motor.
The working principle of this control mechanism is as follows:
Motor is not when cold state starts, and carburetter choke is in closed condition under the effect of reduction torsion spring always, and mixture strength when guaranteeing engine start reaches the concentration of the easy ignition trigger of cold state.
After engine start normally runs, airdoor control blade rotates under the driving of cooling air, to be oppositely arranged along back shaft due to the first driving arm and airdoor control blade and to be fixed together, therefore be axle with back shaft, first driving arm will rotate with identical rotation direction, and the first driving arm drives the first backward stick action, and the first pull bar drives chock plate, overcome the effect of reduction torsion spring and open, the mixture strength guaranteeing to enter combustion chambers burn reaches concentration during engine work.
Motor is after operation a period of time, body temperature raises gradually, the thermal distortion switch being arranged on motor outer surface is out of shape when reaching its operating temperature along with the rising of engine temperature, connected second driving arm is driven to rotate thus, second driving arm drives the second backward stick action to force chock plate to be held open state, when such motor runs, under the acting in conjunction of the first pull bar and the second pull bar, chock plate is be held open state under heat engine state always.
When motor starts for a moment again because of external cause shutdown; motor own temperature is still higher; thermal distortion switch has driving effect to the second driving arm all the time; therefore; although now the first pull bar no longer drives chock plate to open; but the second pull bar can force chock plate to be in open mode all the time; namely motor is when warm boot; chock plate is also opened always; therefore can to avoid in Carburetor mixing chamber mixed gas under warm boot state, excessive concentration and cause the problem that engine start difficulty maybe cannot start.
When engine misses shutdown no longer starts in heat engine state; to the Texturized reset of reset condition when the thermal distortion switch be arranged on outside motor reaches its operating temperature along with motor body temperature is reduced in; drive the second driving arm counterrotating thus; and then drive the second pull bar counteragent to reset; carburetter choke is owing to forcing without external force; automatically close under reduction torsion spring effect, for next cold start-up is ready.
The utility model controls the chock plate control structure of the formations such as blade by the first pull bar, the first driving arm and chock plate, and in conjunction with the choke valve position holding structure that the second pull bar, the second driving arm and thermal distortion switch etc. are formed, chock plate can be made automatically to close under a cold state, automatically open when engine work, opening state is remained under heat engine state, guarantee that motor all can start smoothly under cold and heat engine state, start flexibly, possess practicability.
Further, be provided with coupling sleeve at a side of airdoor control blade, coupling sleeve is socketed on back shaft, and the first driving arm is connected on described coupling sleeve.Coupling sleeve is arranged on a side of airdoor control blade, and airdoor control blade, under cooling wind action, be easier to rotate, and airdoor control blade is connected on back shaft by coupling sleeve, more stable during rotation.
Further, the first pull bar and the second pull bar are V-arrangement, L shape or step-like rod-like structure, ensureing that existing mechanism structure is compact while, and the flexible mutual noninterference of each component movement.
Further, also comprise U-shaped connecting sheet in this programme, U-shaped connecting sheet one end is connected with the second pull bar, and the other end can drive chock plate to rotate.Force chock plate to be held open state by U-shaped connecting sheet, directly drive chock plate compared to by the second pull bar, chock plate can be made more stable in open position.
Further, back shaft is welded on the brake components base plate of motor, and back shaft entirety is more firm.
Further, thermal distortion switch-linear hybrid in the outside of engine cylinder, the temperature of easier perception motor.
Further, this programme thermal distortion switch is the wind spring made by twin metal strip, is provided with housing in the periphery of thermal distortion switch.Wind spring structure is simple; cost is low; as mechanical warming part; highly sensitive, nature can be raised with engine temperature curling, thus drive the second driving arm to rotate; second driving arm drives the second backward stick action; thus forcing chock plate to remain on opening state, thermal distortion switch periphery arranges housing, plays a protective role to thermal distortion switch.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the mounting point schematic diagram of thermal distortion switch and reduction torsion spring;
Fig. 3 is the structural representation that the utility model installs on the engine.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1, Figure 2 and Figure 3, the reference character in accompanying drawing comprises chock plate 1, first pull bar 2, first driving arm 3, airdoor control blade 4, coupling sleeve 5, brake components base plate 6, U-shaped connecting sheet 7, second pull bar 8, second driving arm 9, housing 10, Carburetor 11, cylinder block 12, contiguous block 13, chock plate control arm 14, screw 15, thermal distortion switch 16 and reduction torsion spring 17.
Engine and carburetor automatic choke valve control mechanism as shown in Figure 1, chock plate is rotatably connected on the top of Carburetor 11 by chock plate control arm 14, as shown in Figure 2, chock plate control arm 14 periphery is provided with reduction torsion spring 17, reduction torsion spring 17 pairs of chock plates play reset response, make chock plate remain closed condition under a cold state.V-arrangement connecting sheet is provided with at the upper surface of chock plate, one end of V-arrangement connecting sheet is welded on chock plate, one end of the other end and the first pull bar 2 is hinged, the other end of the first pull bar 2 and one end of the first driving arm 3 hinged, the side that airdoor control blade 4 is vertical arranges coupling sleeve 5, coupling sleeve 5 is socketed on back shaft, back shaft is welded on (as shown in Figure 3) on brake components base plate 6, the other end of the first driving arm 3 is welded on coupling sleeve 5, and the first driving arm 3 is symmetrical along back shaft with airdoor control blade 4.
U-shaped connecting sheet 7 one end is fixed on the top of chock plate control arm 14, the other end and second pull bar 8 one end hinged, one end of second pull bar 8 the other end and the second driving arm 9 is hinged, the other end of the second driving arm 9 is hinged on thermal distortion switch 16, as shown in Figure 2, in this enforcement, thermal distortion switch 16 is wind spring, housing 10 is provided with in the outside of thermal distortion switch 16, the side of housing 10 is provided with contiguous block 13, contiguous block 13 is provided with tapped hole, and the outer surface by screw 16 contiguous block 13 being fixed on cylinder block 12 fixes housing 10(as shown in Figure 1).
In the present embodiment, the first pull bar 2 and the second pull bar 8 are V-arrangement, L shape or step-like rod-like structure, are preferably step-like rod-like structure in this enforcement.
Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite not departing from the utility model structure; some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (7)
1. engine and carburetor automatic choke valve control mechanism, comprise carburetter choke, chock plate control arm, chock plate is contained on chock plate control arm, chock plate control arm periphery is provided with reduction torsion spring, it is characterized in that, also comprise the first pull bar, first driving arm, airdoor control blade, second pull bar, second driving arm and thermal distortion switch, first pull bar can drive chock plate to rotate, the end of the first pull bar is connected with the end of the first driving arm, airdoor control blade is rotatably arranged on the engine by back shaft, first driving arm and airdoor control blade are oppositely arranged along back shaft and are fixed together, second pull bar can drive chock plate to rotate, the end of the second pull bar is connected with one end of the second driving arm, the other end of the second driving arm is connected on described thermal distortion switch, described thermal distortion switch-linear hybrid is at the outer surface of motor.
2. engine and carburetor automatic choke valve control mechanism according to claim 1, it is characterized in that, be provided with coupling sleeve at a side of described airdoor control blade, coupling sleeve is socketed on described back shaft, and the first driving arm is connected on described coupling sleeve.
3. engine and carburetor automatic choke valve control mechanism according to claim 1, is characterized in that, the first described pull bar and the second pull bar are V-arrangement, L shape or step-like rod-like structure.
4. engine and carburetor automatic choke valve control mechanism according to claim 1, is characterized in that, also comprises U-shaped connecting sheet, and described U-shaped connecting sheet one end is connected with the second pull bar, and the other end can drive chock plate to rotate.
5. engine and carburetor automatic choke valve control mechanism according to claim 2, is characterized in that, described back shaft is welded on the brake components base plate of motor.
6. engine and carburetor automatic choke valve control mechanism according to claim 5, is characterized in that, described thermal distortion switch-linear hybrid is in the outside of engine cylinder body.
7. the engine and carburetor automatic choke valve control mechanism any one of claim 1 ~ 6 described in claim, is characterized in that, described thermal distortion switch is the wind spring made by twin metal strip, is provided with housing in the periphery of described thermal distortion switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052445.4U CN204458098U (en) | 2015-01-26 | 2015-01-26 | Engine and carburetor automatic choke valve control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052445.4U CN204458098U (en) | 2015-01-26 | 2015-01-26 | Engine and carburetor automatic choke valve control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458098U true CN204458098U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520052445.4U Active CN204458098U (en) | 2015-01-26 | 2015-01-26 | Engine and carburetor automatic choke valve control mechanism |
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| CN (1) | CN204458098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564426A (en) * | 2015-01-26 | 2015-04-29 | 重庆大江动力设备制造有限公司 | Automatic control mechanism for choke valve of engine carburetor |
| CN112943485A (en) * | 2021-02-24 | 2021-06-11 | 隆鑫通用动力股份有限公司 | Universal engine |
-
2015
- 2015-01-26 CN CN201520052445.4U patent/CN204458098U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564426A (en) * | 2015-01-26 | 2015-04-29 | 重庆大江动力设备制造有限公司 | Automatic control mechanism for choke valve of engine carburetor |
| CN112943485A (en) * | 2021-02-24 | 2021-06-11 | 隆鑫通用动力股份有限公司 | Universal engine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |