CN208619244U - A kind of choke flap structure of carburetor - Google Patents
A kind of choke flap structure of carburetor Download PDFInfo
- Publication number
- CN208619244U CN208619244U CN201821379589.0U CN201821379589U CN208619244U CN 208619244 U CN208619244 U CN 208619244U CN 201821379589 U CN201821379589 U CN 201821379589U CN 208619244 U CN208619244 U CN 208619244U
- Authority
- CN
- China
- Prior art keywords
- choke
- carburetor
- shaft
- flap structure
- torsional spring
- 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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- Means For Warming Up And Starting Carburetors (AREA)
Abstract
The utility model provides a kind of choke flap structure of carburetor, belongs to technical field of engines.It is fixed, the problem of different opening and closing degree of choke cannot be controlled according to ambient temperature that it, which solves existing engine choke,.The choke flap structure of this carburetor, carburetor includes carburetor shell, air inlet is offered on carburetor shell, handle is hinged on the carburetor shell, this choke flap structure includes shaft and the choke with shaft rotation, choke is with respect to shaft eccentric setting, choke can be embedded in air inlet and shelter from air inlet, mounting plate is arranged in shaft, the end sleeve of shaft one end is equipped with limit plate and torsional spring, mounting plate is equipped with gag lever post, one end of torsional spring and the end of limit plate lean, the other end of torsional spring leans with gag lever post, handle capable of being pushes mounting plate that shaft is driven to turn to choke and partially opens or close.The choke flap structure of this carburetor can improve the stability of choke work.
Description
Technical field
The utility model belongs to technical field of engines, is related to a kind of choke flap structure of carburetor.
Background technique
Choke is a component on petrol engine carburetor, generally in the air inlet of carburetor, by being mounted on
Control crank on carburetor shell is operated；Its effect is to be suitably turned off part in engine cold-start or low temperature
Air inlet increases the gasoline concentration for entering the gaseous mixture of cylinder, the starting performance of engine is improved, after normal working of engine
Choke should be fully opened, not so can cause engine that cannot run well because of gaseous mixture overrich and causes fuel consumption
Excessive, EFI engine is to automatically control not needing manual operation.
Although existing carburetor solves the problems, such as cold start-up by the way that choke is arranged to a certain extent, changing
There is no setting automatic control storm door opening mechanisms in oily device, therefore engine needs not in varying environment temperature and cooling and heating machine
With air-fuel ratio namely control the different opening and closing degree of choke, existing choke be it is fixed, cause engine at certain
The problem of a little environment temperatures and cooling and heating machine can not start, reduces the stability of choke work.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of choke of carburetor
Structure, technical problem to be solved in the utility model are how to improve the stability of choke work.
The purpose of this utility model can be realized by the following technical scheme:
A kind of choke flap structure of carburetor, carburetor include carburetor shell, offered on the carburetor shell into
Air port, is hinged with handle on the carburetor shell, this choke flap structure includes shaft and with the choke that shaft rotates, institute
Choke is stated with respect to shaft eccentric setting, the choke can be embedded in air inlet and shelter from air inlet, cover in the shaft
Equipped with mounting plate, which is characterized in that the end sleeve of described shaft one end is equipped with limit plate and torsional spring, and the mounting plate is equipped with limit
Position bar, one end of the torsional spring and the end of limit plate lean, and the other end and the gag lever post of the torsional spring lean, the hand
Handle can push mounting plate that shaft is driven to turn to choke and partially open or close.
Working principle: when needing at low ambient temperatures to start engine, rotational handle, handle push mounting plate at this time
Limit plate is driven with torsional spring, limit plate drives shaft rotation, and choke follows shaft to rotate together, realizes the unlatching of air inlet
And closing, engine start, the bias of choke forms pressure difference around the shaft at this time, overcomes torsional spring torque rotary shaft to rotate, shaft
Choke is driven, air can be entered in carburetor shell by air inlet, since choke can only be beaten with the height of pressure difference
Corresponding aperture is opened, guarantees air-fuel ratio consistency when starting, therefore be able to achieve at low ambient temperatures, starts function quick start,
To guarantee that the stability of entire choke starting performance gets a promotion.
In the choke flap structure of above-mentioned carburetor, one end of the shaft convexes to form limited block, the limit plate
On offer limit hole, the limited block can be embedded in limit hole and limit plate is as shaft rotates.
The setting of the structure guarantees so that the installation enhanced convenience of limit plate, also functions to the position-limiting action to limit plate
During shaft rotation, limit plate is further to improve the steady of choke flap structure as shaft rotates together
It is qualitative.
In the choke flap structure of above-mentioned carburetor, the torsional spring is compressed limit plate and gag lever post with having always
Trend, one end of the limit plate is bent to form butting section, and one end and the butting section of the torsional spring lean.
The setting of the structure further makes the structure of choke more so that the structure of choke is more stable
It is convenient.
In the choke flap structure of above-mentioned carburetor, the torsional spring is arranged between limit plate and mounting plate.
The setting of the structure, so that the setting of torsional spring is more firm, and shaft can play the guiding role to torsional spring, protect
After the both ends stress for having demonstrate,proved torsional spring, will not being distorted for torsional spring improves the stability of choke flap structure.
In the choke flap structure of above-mentioned carburetor, limiting section, the side of the limiting section are convexed to form on the handle
Wall is arc-shaped.
The side wall arc of limiting section is arranged, so that the phenomenon that limiting section will not interfere with other component, to improve
The stability of entire choke flap structure.
In the choke flap structure of above-mentioned carburetor, arcuate socket is offered on the mounting plate, is set on the limiting section
There is spacer pin, the spacer pin can be embedded in arcuate socket and slide in arcuate socket.
The setting of arcuate socket, the movement that can further limit handle are formed, and be ensure that choke will not be fully open, are mentioned
The high stability of choke flap structure.
Compared with prior art, the choke flap structure of this carburetor has the advantage that: the setting of limit plate and gag lever post makes
Obtaining choke can only partially open, therefore be able to achieve at low ambient temperatures, start function quick start, so that handle is in rotation
In the process, it will not excessively rotate, ensure that which the stability of entire choke flap structure gets a promotion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram after the choke flap structure assembly of this carburetor.
Fig. 2 is the structural schematic diagram of the choke flap structure of this carburetor.
Fig. 3 is the partial structure diagram of the choke flap structure of this carburetor.
Fig. 4 is the structural schematic diagram of limit plate in the choke flap structure of this carburetor.
In figure, 1, carburetor shell；11, air inlet；2, handle；21, limiting section；22, spacer pin；3, shaft；31, it limits
Block；4, choke；5, mounting plate；51, gag lever post；52, arcuate socket；6, limit plate；61, limit hole；62, butting section；7, torsional spring.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, the choke flap structure of this carburetor, carburetor includes carburetor shell 1, is opened on carburetor shell 1
Equipped with air inlet 11.
Specifically, as depicted in figs. 1 and 2, handle 2 is hinged on carburetor shell 1, this choke flap structure includes shaft
3 and with the choke 4 that shaft 3 rotates, with respect to 3 eccentric setting of shaft, choke 4 is fixed on turn choke 4 by fastener
On axis 3, choke 4 can be embedded in air inlet 11 and shelter from air inlet 11, and mounting plate 5,3 one end of shaft are arranged in shaft 3
End sleeve be equipped with limit plate 6 and torsional spring 7, mounting plate 5 be equipped with gag lever post 51, one end of torsional spring 7 and the end phase of limit plate 6
Against the other end and the gag lever post 51 of torsional spring 7 lean, and handle 2 can push mounting plate 5 that shaft 3 is driven to turn to choke 4
Divide and opens or closes.
Working principle: when needing at low ambient temperatures to start engine, rotational handle 2, handle 2 push installation at this time
Plate 5, torsional spring 7 drive limit plate 6, and limit plate 6 drives shaft 3 to rotate, and choke 4 follows shaft 3 to rotate together, and realize air inlet
The opening and closing of mouth 11, engine start, the eccentric of choke 43 forms pressure difference around the shaft at this time, overcomes 7 torsion of torsional spring
Shaft 3 rotates, and shaft 3 drives choke 4, and air can be entered in carburetor shell 1 by air inlet 11, due to choke 4
Corresponding aperture can only be opened with the height of pressure difference, guarantee air-fuel ratio consistency when starting, therefore be able to achieve in low temperature environment
Under, start function quick start, to guarantee that the stability of entire choke starting performance gets a promotion.
As shown in Figure 3 and Figure 4, one end of shaft 3 convexes to form limited block 31, and limit hole 61 is offered on limit plate 6, limit
Position block 31 can be embedded in limit hole 61 and limit plate 6 is as shaft 3 rotates；Limited block 31 and limit plate 6 rivet.
As shown in Figures 2 and 3, the torsion always with the trend for compressing limit plate 6 and gag lever post 51 is arranged in shaft 3
Spring 7, one end of limit plate 6 are bent to form butting section 62, and one end and the butting section 62 of torsional spring 7 lean.
As shown in Figure 1-3, offering arcuate socket 52 on mounting plate 5, limiting section 21, limiting section 21 are convexed to form on handle 2
Side wall it is arc-shaped, limiting section 21 is equipped with spacer pin 22, and spacer pin 22 can be embedded in arcuate socket 52 and slide in arcuate socket 52,
The range of sliding is the standard-sized sheet of air door and fully closed.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of choke flap structure of carburetor, carburetor includes carburetor shell (1), is opened up on the carburetor shell (1)
Have air inlet (11), be hinged with handle (2) on the carburetor shell (1), this choke flap structure include shaft (3) and with turn
The choke (4) of axis (3) rotation, the choke (4) can be embedded in air inlet with respect to shaft (3) eccentric setting, the choke (4)
Mouth (11) simultaneously shelters from air inlet (11), is arranged with mounting plate (5) on the shaft (3), which is characterized in that the shaft
(3) end sleeve of one end is equipped with limit plate (6) and torsional spring (7), and the mounting plate (5) is equipped with gag lever post (51), the torsional spring
(7) end of one end and limit plate (6) leans, and the other end and the gag lever post (51) of the torsional spring (7) lean, the hand
Handle (2) can push mounting plate (5) that shaft (3) is driven to turn to choke (4) and partially open or close.
2. the choke flap structure of carburetor according to claim 1, which is characterized in that one end protrusion of the shaft (3)
It is formed limited block (31), is offered limit hole (61) on the limit plate (6), the limited block (31) can be embedded in limit hole (61)
Interior and limit plate (6) is rotated with shaft (3).
3. the choke flap structure of carburetor according to claim 1 or 2, which is characterized in that be arranged on the shaft (3)
Always there is the torsional spring (7) for the trend for compressing limit plate (6) and gag lever post (51), one end bent of the limit plate (6)
At butting section (62), one end and butting section (62) of the torsional spring (7) lean.
4. the choke flap structure of carburetor according to claim 3, which is characterized in that torsional spring (7) setting is limiting
Between plate (6) and mounting plate (5).
5. the choke flap structure of carburetor according to claim 3, which is characterized in that convexed to form on the handle (2)
The side wall of limiting section (21), the limiting section (21) is arc-shaped.
6. the choke flap structure of carburetor according to claim 5, which is characterized in that offered on the mounting plate (5)
Arcuate socket (52), the limiting section (21) be equipped with spacer pin (22), the spacer pin (22) can be embedded in arcuate socket (52) and
Sliding in arcuate socket (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821379589.0U CN208619244U (en) | 2018-08-24 | 2018-08-24 | A kind of choke flap structure of carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821379589.0U CN208619244U (en) | 2018-08-24 | 2018-08-24 | A kind of choke flap structure of carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619244U true CN208619244U (en) | 2019-03-19 |
Family
ID=65716911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821379589.0U Expired - Fee Related CN208619244U (en) | 2018-08-24 | 2018-08-24 | A kind of choke flap structure of carburetor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619244U (en) |
-
2018
- 2018-08-24 CN CN201821379589.0U patent/CN208619244U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190319 Termination date: 20200824 |