CN219317059U - Engine convenient for opening and closing choke valve - Google Patents
Engine convenient for opening and closing choke valve Download PDFInfo
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- CN219317059U CN219317059U CN202320776763.XU CN202320776763U CN219317059U CN 219317059 U CN219317059 U CN 219317059U CN 202320776763 U CN202320776763 U CN 202320776763U CN 219317059 U CN219317059 U CN 219317059U
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- rod
- choke valve
- choke
- engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses an engine convenient for opening and closing a choke valve, which comprises an engine main body, a carburetor arranged on one side of the engine main body, a choke valve arranged in an air inlet channel of the carburetor, a choke valve rod used for driving the choke valve to open and close, and a return spring used for promoting the choke valve rod to return; the engine main body is also provided with a temperature controller and an accelerator rocker arm, and the accelerator rocker arm is in transmission connection with the choke valve rod through a first transmission assembly and is used for promoting the choke valve to rotate from a fully closed state to a half-open state with at least one part opened; the temperature controller is in transmission connection with the choke valve rod through the second transmission assembly and is used for promoting the choke valve to rotate from a half-open state to a full-open state. According to the technical scheme, after the engine is started in a cold machine, even if the temperature controller does not work in a short time, the choke valve is opened for a certain angle under the action of the throttle rocker arm, so that the carburetor has a certain air inflow, and the engine can normally run in the initial stage of the cold machine starting.
Description
Technical Field
The utility model relates to the technical field of carburetor parts on an engine, in particular to an engine convenient for opening and closing a choke valve.
Background
The carburetor is a necessary component on the engine, one side of the carburetor is provided with an air inlet channel and is provided with a choke valve, and in the current scheme, the opening and closing actions of the choke valve are generally controlled by an upper temperature controller of the engine.
In specific application, when the engine is started in a cold state, the temperature controller does not reach a preset threshold value, and the choke valve is always in a completely closed state, so that the air inflow of a carburetor is insufficient in the early period of engine operation, the engine operation is unstable, and the temperature controller is heated to work to control the choke valve to be completely opened after the engine operation is carried out for a certain time, at the moment, the engine is in an optimal working state, namely, the temperature detected by the temperature controller needs to reach the preset threshold value to trigger the opening control of the choke valve. This causes the choke valve to be closed at the initial start of the engine, and the output power is low.
Disclosure of Invention
In order to solve the above problems in the prior art, an engine is provided that aims to facilitate opening and closing of a choke valve, so that the choke valve can be opened by a certain angle under the action of an accelerator rocker arm even if a temperature controller is not operated in a short time after a cold engine is started, and a carburetor can have a certain air inflow, so that the engine can normally run at the initial stage of the cold engine start.
The specific technical scheme is as follows:
an engine convenient for opening and closing a choke valve comprises an engine main body, a carburetor arranged on one side of the engine main body, a choke valve arranged in an air inlet channel of the carburetor, a choke valve rod used for driving the choke valve to open and close, and a return spring used for promoting the return of the choke valve rod;
the engine main body is also provided with a temperature controller and an accelerator rocker arm, and the accelerator rocker arm is in transmission connection with the choke valve rod through a first transmission assembly and is used for promoting the choke valve to rotate from a fully closed state to a half-open state with at least one part opened;
the temperature controller is in transmission connection with the choke valve rod through the second transmission assembly and is used for promoting the choke valve to rotate from a half-open state to a full-open state.
Preferably, a rocker is fixedly sleeved on the periphery of the choke rod, a throttle rod capable of rotating circumferentially is arranged on the carburetor, the first transmission assembly comprises a throttle pull rod and a first connecting rod, two ends of the throttle pull rod are respectively in transmission connection with the throttle rocker arm and the throttle rod, two ends of the first connecting rod are respectively in transmission connection with the throttle rod and the rocker rod, and circumferential rotation motion of the throttle rocker arm is converted into circumferential rotation motion of the choke rod through the throttle pull rod, the throttle rod, the first connecting rod and the rocker rod.
Preferably, the upper end of the choke rod is further movably sleeved with a cantilever, the temperature controller is provided with a rotating piece, the second transmission assembly comprises a second connecting rod, two ends of the second connecting rod are respectively connected with the rotating piece and the cantilever in a transmission mode, and the circumferential rotating action of the rotating piece is converted into the circumferential rotating action of the choke rod through the second connecting rod.
Preferably, the rocker is in a V shape as a whole, one side of the cantilever is provided with a rotating rod extending outwards, one end of the rotating rod, deviating from the choke rod, is bent downwards and extends into the space between two rod parts of the rocker, and the rotating rod abuts against the rod parts of the rocker to drive the rocker and the choke rod to further rotate.
Preferably, two ends of the return spring are respectively hooked on the carburetor and the rocker for driving the rocker and the choke rod to reset.
Preferably, at least one stroke limiting rod is also erected on the carburetor and is used for propping against the two rod parts of the rocker to limit the maximum rotation angle of the choke rod.
Preferably, one end of the first connecting rod is bent to be in a ring shape, the other end of the first connecting rod is in a hook shape, a convex column used for sleeving the first connecting rod is arranged at the upper end of the throttle rod, and a jack used for hooking the first connecting rod is arranged on the rocker.
Preferably, both ends of the second connecting rod are hooked, and the cantilever and the rotating member are provided with through holes for hooking the second connecting rod.
Preferably, both ends of the throttle pull rod are hooked, and the throttle rocker arm and the throttle pull rod are provided with splicing holes for hooking the throttle pull rod.
The beneficial effects of the technical scheme are that:
based on the technical scheme, the engine convenient for opening and closing the choke valve comprises an engine main body, a carburetor, the choke valve, a choke valve rod, a return spring, a temperature controller, an accelerator rocker arm, a first transmission assembly and a second transmission assembly, so that the choke valve is opened by a certain angle under the action of the accelerator rocker arm even if the temperature controller does not work in a short time after the engine is started, and the carburetor has a certain air inflow, so that the engine can normally run at the initial stage of the cold engine start.
Drawings
FIG. 1 is a perspective view of an engine of the present utility model in a choke fully closed condition for facilitating choke opening and closing;
FIG. 2 is a top view of the engine of the present utility model in a choke fully closed condition for facilitating choke opening and closing;
FIG. 3 is a perspective view of the engine of the present utility model in a choke half open state for facilitating choke opening and closing;
FIG. 4 is a top view of the engine of the present utility model in a choke half open state for facilitating choke opening and closing;
FIG. 5 is a perspective view of the engine of the present utility model in a fully open choke state for facilitating choke opening and closing;
FIG. 6 is a top view of the engine of the present utility model in a fully open choke state for facilitating choke opening and closing;
FIG. 7 is an exploded view of the carburetor and various components of the engine of the present utility model that facilitate opening and closing of the choke valve.
Detailed Description
In order to make the technical means, the creation features, the achievement of the purpose and the effect of the present utility model easy to understand, the present utility model is specifically described below with reference to the accompanying drawings.
Referring to fig. 1 to 7, the engine for facilitating opening and closing of a choke valve provided in the present embodiment includes an engine body 1, a carburetor 4 disposed on one side of the engine body 1, a choke valve 5 disposed in an intake passage of the carburetor 4, a choke lever 6 for driving opening and closing of the choke valve 5, and a return spring 7 for urging return of the choke lever 6; wherein, the liquid crystal display device comprises a liquid crystal display device,
the engine main body 1 is also provided with a temperature controller 2 and an accelerator rocker arm 3, and the accelerator rocker arm 3 is in transmission connection with a choke rod 6 through a first transmission assembly and is used for promoting the choke rod 5 to rotate from a fully closed state to a half-open state with at least one part opened; the temperature controller 2 is in transmission connection with the choke rod 6 through a second transmission component and is used for promoting the choke valve 5 to rotate from a half-open state to a full-open state.
In specific application, after the engine is started, the throttle rocker arm 3 of the engine main body 1 rotates along with the engine, and the choke valve rod 6 and the choke valve 5 are driven to rotate by a certain angle through the first transmission component, namely, the choke valve 5 rotates from a fully closed state to a half-open state with at least one part opened, so that the engine has enough air inflow, and the normal operation of the engine is ensured; after the engine runs for a period of time, the temperature controller 2 starts to work, after the temperature controller 2 detects that the temperature rises to a set threshold value, the choke valve rod 6 and the choke valve 5 are driven by the second transmission assembly to further rotate to a fully opened state, and the engine reaches an optimal working state; after the engine is stopped and the temperature controller 2 detects that the temperature returns to the set threshold value, the choke valve rod 6 and the choke valve 5 are driven to reset to the fully closed state through the second transmission assembly and the return spring 7; and (3) running repeatedly.
Based on the above technical scheme, the engine convenient to choke valve open and shut includes engine main part 1, carburetor 4, choke valve 5, choke valve pole 6, return spring 7, temperature controller 2, throttle rocking arm 3, first drive assembly, second drive assembly for even the engine is at cold machine start back even temperature controller 2 is inoperative in a short time, choke valve 5 opens certain angle under the throttle rocking arm effect, thereby makes carburetor 4 have certain air input, in order to make the engine can normal operating when cold machine start initial stage.
In a preferred embodiment, as shown in fig. 7, a rocker 11 is fixedly sleeved on the periphery of the choke rod 6, a circumferentially rotatable throttle rod 15 is arranged on the carburetor 4, a first transmission assembly comprises a throttle pull rod 8 and a first connecting rod 9, two ends of the throttle pull rod 8 are respectively connected with the throttle rocker 3 and the throttle rod 15 in a transmission manner, two ends of the first connecting rod 9 are respectively connected with the throttle rod 15 and the rocker 11 in a transmission manner, and the circumferentially rotatable motion of the throttle rocker 3 is converted into the circumferentially rotatable motion of the choke rod 6 through the throttle pull rod 8, the throttle rod 15, the first connecting rod 9 and the rocker 11. Further, the upper end of the choke rod 6 is movably sleeved with a cantilever 10, the temperature controller 2 is provided with a rotating member 13, the second transmission assembly comprises a second connecting rod 14, and two ends of the second connecting rod 14 are respectively connected with the rotating member 13 and the cantilever 10 in a transmission manner, so that the circumferential rotation motion of the rotating member 13 is converted into the circumferential rotation motion of the choke rod 6 through the second connecting rod 14.
It should be noted that the first transmission assembly and the second transmission assembly may also have more complex or more compact structures, for example, but not limited to, a manner of directly hinging the throttle lever 8 to the choke lever 6.
As a further preferred embodiment, the rocker 11 is V-shaped overall, one side of the cantilever 10 has a rotating rod 12 extending in an outward direction, and one end of the rotating rod 12 facing away from the choke rod 6 is bent in a downward direction and extends between two rod portions of the rocker 11, so as to drive the rocker 11 and the choke rod 6 to rotate further by the rotating rod 12 abutting against the rod portions of the rocker 11. Further, two ends of the return spring 7 are respectively hooked on the carburetor 4 and the rocker 11 for driving the rocker 11 and the choke rod 6 to return.
In a specific application, after the engine is started, the throttle rocker arm 3 moves along with the engine cold machine, and drives the rocker arm 11 and the choke rod 6 to rotate a certain angle through the throttle pull rod 8, the throttle rod 15 and the first connecting rod 9, so that the purpose that air flows in an air inlet channel of the carburetor 4 is achieved. Then after a certain period of time, the temperature controller 2 works to drive the cantilever 10 to act through the rotating piece 13 and the second connecting rod 14, and the cantilever 10 is movably sleeved on the choke valve rod 6, the action of the rocker 11 is irrelevant to the cantilever, but when the cantilever 10 rotates, the rotating rod 12 abuts against the rocker 11 to drive the rocker 11 and the choke valve rod 6 to further rotate until the choke valve 5 is in a fully opened state. After stopping, the throttle rocker arm 3 has a reset force, but before the temperature has not decreased to the threshold value set in the temperature controller 2, the rotating rod 12 is still in a state of abutting against the rocker arm 11, the choke valve 5 is still in an open state, after the temperature decreases to the set threshold value, the rotating member 13 drives the second connecting rod 14 to reset, the rotating rod 12 resets along with the cantilever 10, the return spring 7 drives the rocker arm 11 and the choke valve rod 6 to reset, and the engine operates again as described above after the next starting.
In a preferred embodiment, at least one travel limit lever 16 is also upstanding from the carburetor 4 for limiting the maximum angle of rotation of the choke lever 6 against the two lever portions of the rocker 11. Further, one end of the first connecting rod 9 is bent to be in a ring shape, the other end of the first connecting rod is in a hook shape, a convex column for sleeving the first connecting rod 9 is arranged at the upper end of the throttle rod 15, and a jack for hooking the first connecting rod 9 is arranged on the rocker 11. Further, both ends of the second connecting rod 14 are hooked, and the cantilever 10 and the rotating member 13 are provided with through holes for hooking the second connecting rod 14. Furthermore, both ends of the throttle pull rod 8 are hooked, and the throttle rocker arm 3 and the throttle lever 15 are provided with plug holes for hooking the throttle pull rod 8. The connection between the components is free of fasteners, disassembly, assembly and maintenance are more convenient, and the overall cost is lower.
It should be noted that the throttle rocker arm 3 is located at a side portion of the engine body 1, and the temperature controller 2 is disposed at an upper end surface of the engine body 1, which is consistent with the arrangement of the throttle rocker arm 3 and the temperature controller 2 in the prior art, so that redundant description is omitted here. The half open state is not limited to the open position of 45 degrees, and may be other angles such as 30 degrees and 60 degrees.
The foregoing description of the preferred embodiment of the utility model is merely illustrative of the utility model and is not intended to be limiting. It will be appreciated by persons skilled in the art that many variations, modifications, and even equivalents may be made thereto without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (9)
1. An engine convenient for opening and closing a choke valve comprises an engine main body (1), a carburetor (4) arranged on one side of the engine main body (1), a choke valve (5) arranged in an air inlet channel of the carburetor (4), a choke rod (6) used for driving the choke valve (5) to open and close, and a return spring (7) used for promoting the return of the choke rod (6); it is characterized in that the method comprises the steps of,
the engine main body (1) is also provided with a temperature controller (2) and an accelerator rocker arm (3), and the accelerator rocker arm (3) is in transmission connection with the choke rod (6) through a first transmission component and is used for promoting the choke valve (5) to rotate from a fully closed state to a half-open state with at least one part opened;
the temperature controller (2) is in transmission connection with the choke valve rod (6) through a second transmission assembly, and is used for enabling the choke valve (5) to rotate from the half-open state to the full-open state.
2. The engine convenient for opening and closing a choke valve according to claim 1, wherein a rocker (11) is fixedly sleeved on the periphery of the choke rod (6), a circumferentially rotatable throttle rod (15) is arranged on the carburetor (4), the first transmission assembly comprises a throttle pull rod (8) and a first connecting rod (9), two ends of the throttle pull rod (8) are respectively in transmission connection with the throttle rocker (3) and the throttle rod (15), two ends of the first connecting rod (9) are respectively in transmission connection with the throttle rod (15) and the rocker (11), and the circumferential rotation of the throttle rocker (3) is converted into the circumferential rotation of the choke rod (6) through the throttle pull rod (8), the throttle rod (15), the first connecting rod (9) and the rocker (11).
3. The engine of claim 2, wherein the choke rod (6) is further movably sleeved with a cantilever (10), the temperature controller (2) is provided with a rotating member (13), the second transmission assembly comprises a second connecting rod (14), and two ends of the second connecting rod (14) are respectively connected with the rotating member (13) and the cantilever (10) in a transmission manner, so that the circumferential rotation motion of the rotating member (13) is converted into the circumferential rotation motion of the choke rod (6) through the second connecting rod (14).
4. An engine for facilitating opening and closing of a choke valve according to claim 3, characterized in that the rocker (11) is V-shaped as a whole, one side of the cantilever (10) is provided with a rotating rod (12) extending outwards, and one end of the rotating rod (12) away from the choke rod (6) is bent downwards and extends between two rod parts of the rocker (11) so as to drive the rocker (11) and the choke rod (6) to rotate further by the rotating rod (12) abutting against the rod parts of the rocker (11).
5. An engine for facilitating opening and closing of a choke valve according to claim 4, characterized in that both ends of the return spring (7) are hooked on the carburetor (4) and the rocker (11) respectively for driving the rocker (11) and the choke rod (6) to return.
6. An engine for facilitating opening and closing of a choke valve according to claim 2, characterized in that at least one travel limit lever (16) is also erected on the carburetor (4) for limiting the maximum rotation angle of the choke lever (6) against the two lever portions of the rocker (11).
7. An engine for facilitating opening and closing of a choke valve according to claim 3, characterized in that one end of the first connecting rod (9) is bent to be a ring shape, the other end of the first connecting rod is hooked, a convex column for sleeving the first connecting rod (9) is arranged at the upper end of the throttle rod (15), and a jack for hooking the first connecting rod (9) is arranged on the rocker (11).
8. The engine for facilitating opening and closing of a choke valve according to claim 7, characterized in that both ends of the second connecting rod (14) are hooked, and the cantilever (10) and the rotating member (13) are provided with through holes for hooking the second connecting rod (14).
9. The engine for facilitating opening and closing of a choke valve according to claim 8, wherein both ends of the throttle pull rod (8) are hooked, and the throttle rocker arm (3) and the throttle lever (15) are provided with plug holes for hooking the throttle pull rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320776763.XU CN219317059U (en) | 2023-03-31 | 2023-03-31 | Engine convenient for opening and closing choke valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320776763.XU CN219317059U (en) | 2023-03-31 | 2023-03-31 | Engine convenient for opening and closing choke valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219317059U true CN219317059U (en) | 2023-07-07 |
Family
ID=87029587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320776763.XU Active CN219317059U (en) | 2023-03-31 | 2023-03-31 | Engine convenient for opening and closing choke valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219317059U (en) |
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2023
- 2023-03-31 CN CN202320776763.XU patent/CN219317059U/en active Active
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