CN107387244B - Control mechanism of gasoline engine - Google Patents
Control mechanism of gasoline engine Download PDFInfo
- Publication number
- CN107387244B CN107387244B CN201710767899.3A CN201710767899A CN107387244B CN 107387244 B CN107387244 B CN 107387244B CN 201710767899 A CN201710767899 A CN 201710767899A CN 107387244 B CN107387244 B CN 107387244B
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- handle
- rocker arm
- throttle
- guide groove
- rotating shaft
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- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/02—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention provides an operating mechanism of a gasoline engine, and belongs to the technical field of engines. The control handle solves the technical problems that an existing control handle controls the opening of an accelerator through the hand feeling of an operator, the stability is not high and the like. The control mechanism comprises a handle for holding and an accelerator handle hinged to the lower side of the front part of the handle, wherein the swing of the accelerator handle drives a rocker arm to swing, the lower end of the rocker arm is fixedly connected with an accelerator cable connected with an accelerator of a gasoline engine, the upper side of the front part of the handle is provided with an upper guide groove, the upper part of the rocker arm is hinged with a rotating shaft, the rotating shaft can slide and be fixed on the upper guide groove, and the swing amplitude of the rocker arm driven by the accelerator handle can be changed by changing the position of the rotating shaft on the upper guide groove so as to control the maximum displacement of the accelerator cable. The accelerator opening is determined by the position of the constant-speed handle, the accelerator opening is controlled by only holding the accelerator handle to the bottom during operation, the accelerator opening is not required to be controlled by the feeling of hands, the work is more stable, and the control of the accelerator opening is more accurate.
Description
Technical Field
The invention belongs to the technical field of engines, in particular to an operating mechanism of a gasoline engine.
Background
At present, the handheld single-cylinder gasoline engine in the market at home and abroad almost works in a state that the throttle is fully opened, in order to save fuel when the load is not big, an operation handle for controlling the throttle opening of the gasoline engine is designed, the operation handle comprises a handle used for holding, a rocker arm for adjusting the throttle opening is arranged in the front end part of the handle, the rocker arm can rotate in a vertical plane around the upper end of the rocker arm, the lower end of the rocker arm is connected with a throttle cable, the throttle cable is connected with a throttle of the gasoline engine, the front end of the handle is hinged with a throttle handle, and the throttle handle can push the lower end of the rocker arm to rotate forwards around the upper end of the rocker arm.
The control handle can only partially loosen the throttle handle by artificial hand feeling, and the throttle opening is controlled by the hand feeling of an operator, so that the fuel-saving operation is realized, but the mode has very high hand feeling requirement on the operator, the palm is very tired in a holding state, the throttle handle is difficult to be in the same opening for a long time in the holding state, and the control means can cause up-and-down fluctuation of the engine rotating speed and is difficult to control.
Disclosure of Invention
The invention aims to provide an operating mechanism capable of controlling the accelerator opening of a gasoline engine more stably.
The purpose of the invention is realized in the following way:
the utility model provides a control mechanism of gasoline engine, control mechanism includes the hand (hold) that is used for holding and articulates the throttle handle at the front downside of hand (hold), and the swing of throttle handle drives the rocking arm and swings, and the lower extreme of rocking arm links firmly the throttle line of being connected with the throttle of gasoline engine, its characterized in that, the front upside of hand (hold) is provided with the guide slot, the upper portion of rocking arm articulates there is the pivot, the pivot can slide and fix on the guide slot on, and the swing range of the rocking arm that the change pivot on upper guide slot can change throttle handle drive is in order to control the biggest displacement of throttle line.
The working principle is as follows: when the control mechanism of the gasoline engine works, if the throttle is required to be fully opened, the rotating shaft hinged to the upper part of the rocker arm is moved to the rear end of the upper guide groove and fixed, at the moment, the upper end of the rocker arm can move to the rear end of the upper guide groove along with the rotating shaft, then the throttle handle is rotated, the C-shaped wall on the throttle handle pushes the lower end of the rocker arm to rotate forwards along with the rotation of the throttle handle, and the lower end of the rocker arm is connected with a throttle wire, so that the throttle wire can be pulled by the forward rotation of the lower end of the rocker arm, and the throttle is opened. When the throttle handle is held to the bottom, namely rotated upwards to be abutted against the bottom of the handle, the lower end of the rocker arm is pushed by the C-shaped wall to be rotated to the front end of the lower guide groove, so that the throttle is fully opened; when the throttle is not required to be fully opened, the rotating shaft only needs to slide forwards on the upper guide groove, the sliding distance can be determined according to the opening degree of the throttle required to be opened, after the upper end of the rocker arm moves forwards along with the rotating shaft, the throttle handle needs to rotate a larger angle to enable the C-shaped wall arranged on the throttle handle to touch the middle part of the rocker arm, and even if the throttle handle is held to the bottom, the throttle wire cannot be pulled out completely, so that the throttle cannot be fully opened; the method for controlling the opening degree of the accelerator has the advantages of simple structure, convenient operation and better stability.
In the above-mentioned control mechanism of gasoline engine, the front downside of handle articulates through the articulated shaft has the fixed speed handle that upwards stretches out, fixed speed handle can rotate around the articulated shaft and be fixed with the side of the front portion of handle, go up the guide way and regard the articulated shaft as the centre of a circle setting, the one end of pivot links firmly with the upper portion of fixed speed handle. The fixed speed handle is designed to enable the rotation of the rotating shaft in the upper guide groove to be smoother and stable, and can also have a good fixing and supporting effect on the end part of the rotating shaft, so that the stability of the operating mechanism is better; meanwhile, the upper guide groove is arranged by taking the hinge shaft as the circle center, so that the control of the opening of the accelerator can be smoother; furthermore, the upper end of the constant speed handle extends out of the upper end face of the handgrip, and the upper end of the constant speed handle extends out of the upper side face of the handgrip, so that a user can conveniently rotate the constant speed handle, and the constant speed handle is more convenient to use.
As another scheme, the upper side of the front part of the handle is provided with a sliding block which can slide along the upper guide groove and is fixed with the upper side of the front part of the handle, and one end of the rotating shaft is fixedly connected with the sliding block. The design of slider also can play better fixed support effect to the tip of pivot, makes this operating mechanism's stability better, also be convenient for operate simultaneously.
As another scheme, the inner end of the rotating shaft is rotatably fixed with the upper part of the rocker arm, the outer end of the rotating shaft is fixedly provided with a handheld part, the rotating shaft and the upper guide groove are axially fixed on the rotating shaft, C-shaped positioning grooves used for fixing the rotating shaft are arranged on the lower side wall of the upper guide groove at intervals along the length direction of the upper guide groove, and the opening of each C-shaped positioning groove faces backwards. When the throttle handle drives the rocker arm to swing forwards, the rotating shaft hinged to the upper end of the rocker arm can be fixed in the C-shaped positioning groove due to the fact that the opening of the C-shaped positioning groove faces backwards, the rotating shaft cannot be pushed to move forwards by the throttle handle, when the opening of the throttle is required to be changed, the rotating shaft is moved out of the C-shaped positioning groove through the control handheld part, then moves to a proper position along the upper end guiding groove, and is placed in the C-shaped positioning groove arranged at the position.
In the above-mentioned control mechanism of a gasoline engine, the throttle handle is provided with a C-shaped wall, the lower end of the C-shaped wall is fixed or formed on the throttle handle, the upper end of the C-shaped wall is propped against the side wall of the rocker arm, the opening of the C-shaped wall faces forward, and the swing of the throttle handle drives the rocker arm to swing through the C-shaped wall. The design of the C-shaped wall enables the C-shaped wall not to touch the lower end of the rocker arm when following the rotation of the throttle handle, but to touch the middle part of the rocker arm, because the lower end of the rocker arm is always at the initial position when the throttle handle does not drive the rocker arm to rotate, when the upper end of the rocker arm moves forward, the middle part of the rocker arm can also deviate forward along with the upper end of the rocker arm, and at the moment, the throttle handle needs to rotate more angles to touch the middle part of the rocker arm, so that the precision of the control mechanism can be adjusted by controlling the contact position of the C-shaped wall and the middle part of the rocker arm.
In the above-mentioned control mechanism for gasoline engine, the lower end of the C-shaped wall is fixed or formed on the throttle handle near the rear of the pin shaft of the hinged throttle handle.
In the above-mentioned control mechanism of a gasoline engine, a lower guide groove is arranged at the lower side of the front part of the handle, a guide shaft arranged at the lower end of the rocker arm is slidably arranged in the lower guide groove, and the rocker arm can swing in the lower guide groove under the drive of the throttle handle.
In the above-mentioned control mechanism of a gasoline engine, the upper edge and the lower edge of the lower guide groove are both arc lines, and the radian of the lower edge is greater than that of the upper edge.
In the above-mentioned control mechanism of a gasoline engine, the rotating shaft is sleeved with a first torsion spring which makes the rocker arm rotate to the rear side of the handle. When the control mechanism is required to be stopped, the lower end of the rocker arm can quickly return to the initial position under the action of the torsion spring along with the fact that the throttle handle does not apply force to the rocker arm, so that the throttle is closed, and safety and stability are high.
Alternatively, a second spring for moving the lower end of the rocker arm to the rear side of the handle is fixed to the front side or the rear side of the lower end of the rocker arm. When the second spring is fixed at the front side of the lower end part of the rocker arm, the second spring swings forwards along with the lower end part of the rocker arm and is in a compressed state, when the hand does not apply force to the throttle handle any more, the throttle handle can return to an initial state under the action of gravity, and meanwhile, the lower end part of the rocker arm can return to the initial position under the action of the restoring force of the second spring and the pulling force generated by the throttle returning to the closed state on the throttle wire, namely the rear end of the lower guide groove; when the second spring is fixed at the rear side of the lower end of the rocker arm, the second spring swings forwards along with the lower end of the rocker arm and can be in a stretching state, when the hand does not apply force to the throttle handle any more, the throttle handle can return to an initial state under the action of gravity, and meanwhile, the lower end of the rocker arm can return to the initial position under the action of the restoring force of the second spring and the pulling force generated by the throttle returning to the closed state on the throttle wire, namely the rear end of the lower guide groove.
In the above-mentioned control mechanism of a gasoline engine, a first spring for making the throttle handle rotate downward is provided on the upper side of the throttle handle. As another alternative, a second torsion spring may be provided at the rotation axis of the throttle handle. The design of the first spring is beneficial to the accelerator handle to return to the initial position as soon as possible when the operation mechanism stops working, even if the operation mechanism is transversely placed, the C-shaped wall can be separated from the middle part of the rocker under the action of the first spring, and then the lower end of the rocker returns to the initial position under the action of the accelerator wire and the first torsion spring or the second spring to close the accelerator; meanwhile, the position of the throttle handle can be limited through the design of the first spring, the upper end of the C-shaped wall and the rocker arm still keep a certain distance after the throttle is closed, and the inconvenience in operation when the operating mechanism works again due to the fact that the opening angle between the throttle handle and the handle is too large under the action of gravity is avoided.
Compared with the prior art, the invention has the following outstanding and beneficial technical effects:
1. the upper end of the rocker arm is changed into a constant speed end from the original fixed end through the arrangement that the upper part of the rocker arm is hinged with the rotating shaft which can slide and be fixed on the upper guide groove, and the maximum opening of the throttle can be controlled by sliding the rotating shaft in the upper guide groove; when the rotating shaft slides forward along the upper guide groove, the upper end of the rocker arm moves forward along the rotating shaft, the throttle handle needs to rotate a larger angle to enable the C-shaped wall arranged on the throttle handle to touch the rear side of the rocker arm, even if the throttle handle is held to the bottom, the throttle wire cannot be pulled out completely, so that the throttle cannot be opened completely, the engine is started in a fuel-saving working mode, the size of the throttle opening is determined by controlling the position of the upper end of the rocker arm, the throttle handle is only required to be held to the bottom during operation, the throttle opening is not required to be controlled through the feeling of hands, the work is more stable, and the control of the size of the throttle opening is more accurate.
2. The design of the lower guide groove can enable the lower end of the rocker arm to move backwards along the lower guide groove, the stability is higher, the lower guide groove is in a crescent shape with two ends being circular arcs due to the design that the radian of the lower edge of the lower guide groove is larger than that of the upper edge, when the upper end of the rocker arm is arranged at the rear end of the upper guide groove, the guide shaft arranged at the lower end of the rocker arm can move forwards along the upper edge of the lower guide groove, when the upper end of the rocker arm slides to the front end of the upper guide groove along with the constant speed handle, the guide shaft can move forwards along the lower edge of the lower guide groove, and therefore good guiding and positioning effects can be achieved on the lower end of the rocker arm by the lower guide groove no matter where the upper end of the rocker arm is located, and the stability of the control mechanism of the gasoline engine is further improved.
Drawings
Fig. 1 is a schematic view of the entire structure of the swing arm of the present steering mechanism in the initial position.
Fig. 2 is a schematic side view of the present steering mechanism.
Fig. 3 is a schematic view of the entire structure of the swing arm of the present steering mechanism when the lower end is advanced.
Fig. 4 is a schematic view of the entire structure of the swing arm of the present steering mechanism when the upper end is advanced.
In the figure, 1, a handle; 2. throttle handle; 3. a rocker arm; 4. an accelerator cable; 5. an upper guide groove; 6. a constant speed handle; 7. a rotating shaft; 8. a C-shaped wall; 9. and a lower guide groove.
Detailed Description
The invention is further described in the following by way of specific embodiments with reference to the accompanying drawings, see fig. 1-4:
the control mechanism of the gasoline engine comprises a handle 1 used for holding and an accelerator handle 2 hinged to the lower side of the front part of the handle 1, wherein a swing driving rocker arm 3 of the accelerator handle 2 swings, an accelerator cable 4 connected with an accelerator of the gasoline engine is fixedly connected to the lower end of the rocker arm 3, an upper guide groove 5 is formed in the upper side of the front part of the handle 1, a rotating shaft 7 is hinged to the upper part of the rocker arm 3, the rotating shaft 7 can slide and be fixed on the upper guide groove 5, and the swing amplitude of the rocker arm 3 driven by the accelerator handle 2 can be changed by changing the position of the rotating shaft 7 on the upper guide groove 5 so as to control the maximum displacement of the accelerator cable 4. The control mechanism changes the original fixed end of the rocker arm 3 into a constant speed end through the arrangement that the upper part of the rocker arm 3 is hinged with a rotating shaft 7 which can slide and be fixed on an upper guide groove 5, and the maximum opening of an accelerator can be controlled by sliding the rotating shaft 7 in the upper guide groove 5; when the rotating shaft 7 slides forwards along the upper guide groove 5, the upper end of the rocker arm 3 moves forwards along the rotating shaft 7, the throttle handle 2 needs to rotate a larger angle to enable the C-shaped wall 8 arranged on the throttle handle 2 to touch the rear side of the rocker arm 3, even if the throttle handle 2 is held to the bottom, the throttle wire 4 cannot be pulled out completely, so that the throttle cannot be opened completely, and the engine fuel-saving working mode is started.
Further, a C-shaped wall 8 is arranged on the throttle handle 2, the lower end of the C-shaped wall 8 is fixed or molded on the throttle handle 2, the upper end of the C-shaped wall is propped against the side wall of the rocker arm 3, and further, the lower end of the C-shaped wall 8 is fixed or molded on the throttle handle 2 close to the rear part of the pin shaft of the hinged throttle handle 2, the opening of the C-shaped wall 8 faces forward, and the swing of the throttle handle 2 drives the rocker arm 3 to swing through the C-shaped wall 8. The design of the C-shaped wall 8 makes the C-shaped wall 8 not touch the lower end of the rocker arm 3 when following the rotation of the throttle handle 2, but touch the middle part of the rocker arm 3, because the lower end of the rocker arm 3 is always at the initial position when the throttle handle 2 does not drive the rocker arm to rotate, when the upper end of the rocker arm 3 moves forward, the middle part of the rocker arm 3 also moves forward along with the upper end of the rocker arm 3, and at the moment, the throttle handle 2 needs to rotate more angles to touch the middle part of the rocker arm 3, so the precision of the control mechanism can be adjusted by controlling the contact position of the C-shaped wall 8 and the middle part of the rocker arm 3.
Further, a lower guide groove 9 is formed in the lower side of the front portion of the handlebar 1, a guide shaft arranged at the lower end of the rocker arm 3 is slidably arranged in the lower guide groove 9, and the rocker arm 3 can swing in the lower guide groove 9 under the driving of the throttle handle 2. The design of lower guide way 9 can make the lower extreme of rocking arm 3 follow lower guide way 9 and remove backward, stability is higher, and the radian of lower border of lower guide way 9 is greater than the crescent that the both ends are circular arc for lower guide way 9 by the design of the radian of upper border, when the rear end of upper guide way 5 is gone up to the upper end of rocking arm 3, the guiding axle that the lower extreme set up of rocking arm 3 can be along the upper border forward movement of lower guide way 9, when the upper end of rocking arm 3 slides to the upper guide way 5 front end along with fixed speed handle 6, the guiding axle can be along the lower border forward movement of lower guide way 9, ensure that the upper end of rocking arm 3 is in when no matter what position, lower guide way 9 can play better guiding location effect to the lower extreme of rocking arm 3, the stability of the operating mechanism of this petrol engine has further been improved.
Further, the rotating shaft 7 is sleeved with a first torsion spring which enables the rocker arm 3 to rotate towards the rear side of the handle 1. When the control mechanism is required to be stopped, the lower end of the rocker arm 3 can be quickly returned to the initial position under the action of the torsion spring along with the fact that the throttle handle 2 does not apply force to the rocker arm 3, so that a throttle is closed, and safety and stability are high.
Alternatively, a second spring for moving the lower end portion of the rocker arm 3 to the rear side of the handle 1 is fixed to the front or rear side of the lower end portion of the rocker arm 3. When the second spring is fixed at the front side of the lower end part of the rocker arm 3, the second spring swings forwards along with the lower end part of the rocker arm 3 and is in a compressed state, when the hand does not apply force to the throttle handle 2 any more, the throttle handle 2 can return to an initial state under the action of gravity, and meanwhile, the lower end part of the rocker arm 3 can return to an initial position under the action of the restoring force of the second spring and the pulling force generated by the throttle returning to the closed state on the throttle wire 4, namely the rear end of the lower guide groove 9; when the second spring is fixed at the rear side of the lower end of the rocker arm 3, the second spring swings forward along with the lower end of the rocker arm 3 and is in a stretched state, when the hand does not apply force to the throttle handle 2 any more, the throttle handle 2 can return to an initial state due to the action of gravity, and meanwhile, the lower end of the rocker arm 3 can return to an initial position under the action of the restoring force of the second spring and the pulling force generated by the throttle returning to the closed state on the throttle wire 4, namely, the rear end of the lower guide groove 9.
Further, a first spring for rotating the throttle handle 2 downward is provided on the upper side of the throttle handle 2. As an alternative, a second torsion spring may be provided at the rotation axis 7 of the throttle handle 2. The design of the first spring is beneficial to the accelerator handle 2 to return to the initial position as soon as possible when the operation mechanism stops working, even if the operation mechanism is transversely placed, the C-shaped wall 8 can be separated from the middle part of the rocker arm 3 under the action of the first spring, and then the lower end of the rocker arm 3 can return to the initial position under the action of the accelerator cable 4 and the first torsion spring or the second spring to close the accelerator; meanwhile, the position of the throttle handle 2 can be limited through the design of the first spring, the upper end of the C-shaped wall 8 and the rocker arm 3 still keep a certain distance after the throttle is closed, and the inconvenience in operation when the operating mechanism works again due to the fact that the opening angle between the throttle handle 2 and the handle is too large under the action of gravity is avoided.
Embodiment one:
the control mechanism of the gasoline engine is characterized in that a fixed speed handle 6 extending upwards is hinged to the lower side of the front part of a handle 1 through a hinge shaft, the fixed speed handle 6 can rotate around the hinge shaft and is fixed to the side face of the front part of the handle 1, an upper guide groove 5 is formed by taking the hinge shaft as a circle center, and one end of a rotating shaft 7 is fixedly connected with the upper part of the fixed speed handle 6. The fixed speed handle 6 is designed to enable the rotation of the rotating shaft 7 in the upper guide groove 5 to be smoother and stable, and the fixed speed handle 6 can also have a good fixed supporting effect on the end part of the rotating shaft 7, so that the stability of the operating mechanism is better; meanwhile, the upper guide groove 5 is arranged by taking the hinge shaft as the circle center, so that the control of the opening of the accelerator can be smoother; furthermore, the upper end of the constant speed handle 6 extends out of the upper end face of the handgrip 1, and the upper end of the constant speed handle 6 extends out of the upper side face of the handgrip 1, so that a user can conveniently rotate the constant speed handle 6, and the constant speed handle is more convenient to use.
Further, the upper edge and the lower edge of the lower guide groove 9 are both arc lines, and the radian of the lower edge is greater than that of the upper edge.
Embodiment two:
the operating mechanism of the gasoline engine is provided with a sliding block which can slide along an upper guide groove 5 and is fixed with the upper side of the front part of the handle 1 at the upper side of the front part of the handle 1, and one end of a rotating shaft 7 is fixedly connected with the sliding block. The design of the sliding block can also play a better fixed supporting role on the end part of the rotating shaft 7, so that the stability of the operating mechanism is better, and meanwhile, the operation is convenient.
Embodiment III:
the inner end of a rotating shaft 7 of the control mechanism of the gasoline engine is rotatably fixed with the upper part of a rocker arm 3, a handheld part is fixed at the outer end of the rotating shaft 7, the rotating shaft 7 and an upper guide groove 5 are fixed in the axial direction of the rotating shaft 7, C-shaped positioning grooves for fixing the rotating shaft 7 are formed in the lower side wall of the upper guide groove 5 at intervals along the length direction of the upper guide groove 5, and the opening of each C-shaped positioning groove faces backwards. When the throttle handle 2 drives the rocker arm 3 to swing forwards, the rotating shaft 7 hinged to the upper end of the rocker arm 3 can be fixed in the C-shaped positioning groove due to the fact that the opening of the C-shaped positioning groove faces backwards, and cannot be pushed to move forwards by the throttle handle 2, when the throttle opening needs to be changed, the rotating shaft 7 is moved out of the C-shaped positioning groove through the control handheld part, then moves to a proper position along the upper end guiding groove, and is placed in the C-shaped positioning groove arranged at the position.
The working principle is as follows: when the control mechanism of the gasoline engine works, if the throttle is required to be fully opened, the rotating shaft 7 hinged to the upper part of the rocker arm 3 is moved to the rear end of the upper guide groove 5 and fixed, at the moment, the upper end of the rocker arm 3 can move to the rear end of the upper guide groove 5 along with the rotating shaft 7, then the throttle handle 2 is rotated, the C-shaped wall 8 on the throttle handle 2 pushes the lower end of the rocker arm 3 to rotate forwards along with the rotation of the throttle handle 2, and the lower end of the rocker arm 3 is connected with the throttle wire 4, so that the lower end of the rocker arm 3 rotates forwards to pull the throttle wire 4, and the throttle is opened. When the throttle handle 2 is held to the bottom, namely rotated upwards to be abutted against the bottom of the handle 1, the lower end of the rocker arm 3 is pushed by the C-shaped wall 8 to be rotated to the front end of the lower guide groove 9, so that the throttle is fully opened; when the throttle is not required to be fully opened, the rotating shaft 7 only needs to slide forwards on the upper guide groove 5, the sliding distance can be determined according to the opening degree of the throttle required to be opened, after the upper end of the rocker arm 3 moves forwards along with the rotating shaft 7, the throttle handle 2 needs to rotate a larger angle to enable the C-shaped wall 8 arranged on the throttle handle 2 to touch the middle part of the rocker arm 3, and even if the throttle handle 2 is held to the bottom, the throttle wire 4 cannot be pulled out completely, so that the throttle cannot be fully opened; the method for controlling the opening degree of the accelerator has the advantages of simple structure, convenient operation and better stability.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. The control mechanism of the gasoline engine comprises a handle for holding and an accelerator handle hinged at the lower side of the front part of the handle, wherein the swing of the accelerator handle drives a rocker arm to swing, and the lower end of the rocker arm is fixedly connected with an accelerator cable connected with an accelerator of the gasoline engine; the throttle is fully opened, and a rotating shaft hinged to the upper part of the rocker arm is moved to the rear end of the upper guide groove and is fixed; the throttle is not required to be fully opened, and the rotating shaft is required to slide forwards on the upper guide groove.
2. The steering mechanism of a gasoline engine as set forth in claim 1, wherein: the front lower side of the handle is hinged with a fixed speed handle extending upwards through a hinge shaft, the fixed speed handle can rotate around the hinge shaft and is fixed with the side face of the front of the handle, the upper guide groove is arranged by taking the hinge shaft as a circle center, and one end of the rotating shaft is fixedly connected with the upper portion of the fixed speed handle.
3. The steering mechanism of a gasoline engine as set forth in claim 1, wherein: the upper side of the front part of the handle is provided with a sliding block which can slide along the upper guide groove and is fixed with the upper side of the front part of the handle, and one end of the rotating shaft is fixedly connected with the sliding block.
4. The steering mechanism of a gasoline engine as set forth in claim 1, wherein: the inner end of the rotating shaft is rotatably fixed with the upper part of the rocker arm, the outer end of the rotating shaft is fixedly provided with a handheld part, the rotating shaft and the upper guide groove are axially fixed in the rotating shaft, C-shaped positioning grooves used for fixing the rotating shaft are arranged on the lower side wall of the upper guide groove at intervals along the length direction of the upper guide groove, and the opening of each C-shaped positioning groove faces backwards.
5. A gasoline engine operating mechanism according to any one of claims 1 to 4, wherein: the throttle handle is provided with a C-shaped wall, the lower end of the C-shaped wall is fixed or molded on the throttle handle, the upper end of the C-shaped wall is propped against the side wall of the rocker arm, the opening of the C-shaped wall faces forward, and the swing of the throttle handle drives the rocker arm to swing through the C-shaped wall.
6. The operating mechanism of a gasoline engine as set forth in claim 5, wherein: the lower end of the C-shaped wall is fixed or formed on the throttle handle near the rear part of the pin shaft of the hinged throttle handle.
7. The steering mechanism of a gasoline engine as set forth in claim 1, wherein: the lower side of the front part of the handle is provided with a lower guide groove, a guide shaft arranged at the lower end of the rocker arm is slidably arranged in the lower guide groove, and the rocker arm can swing in the lower guide groove under the drive of the throttle handle.
8. The steering mechanism of a gasoline engine as set forth in claim 7, wherein: the upper edge and the lower edge of the lower guide groove are both arc lines, and the radian of the lower edge is greater than that of the upper edge.
9. A gasoline engine operating mechanism according to claim 1 or 2 or 3 or 4 or 7 or 8, characterized in that: the rotating shaft is sleeved with a first torsion spring which enables the rocker arm to rotate towards the rear side of the handle.
10. A gasoline engine operating mechanism according to claim 1 or 2 or 3 or 4 or 7 or 8, characterized in that: the upper side of the throttle handle is provided with a first spring which enables the throttle handle to rotate downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710767899.3A CN107387244B (en) | 2017-08-31 | 2017-08-31 | Control mechanism of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710767899.3A CN107387244B (en) | 2017-08-31 | 2017-08-31 | Control mechanism of gasoline engine |
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| Publication Number | Publication Date |
|---|---|
| CN107387244A CN107387244A (en) | 2017-11-24 |
| CN107387244B true CN107387244B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710767899.3A Active CN107387244B (en) | 2017-08-31 | 2017-08-31 | Control mechanism of gasoline engine |
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| CN (1) | CN107387244B (en) |
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