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WO2018196567A1 - Levier de commande à deux cordes et moteur à essence - Google Patents

Levier de commande à deux cordes et moteur à essence Download PDF

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Publication number
WO2018196567A1
WO2018196567A1 PCT/CN2018/081741 CN2018081741W WO2018196567A1 WO 2018196567 A1 WO2018196567 A1 WO 2018196567A1 CN 2018081741 W CN2018081741 W CN 2018081741W WO 2018196567 A1 WO2018196567 A1 WO 2018196567A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
throttle
parking
hook
locking
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.)
Ceased
Application number
PCT/CN2018/081741
Other languages
English (en)
Chinese (zh)
Inventor
王贵良
刘向峰
郭丽
王法臣
王晓勇
吴敬明
崔景国
邵逸群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Huasheng Pesticide Machinery Co Ltd
Original Assignee
Shandong Huasheng Pesticide Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Huasheng Pesticide Machinery Co Ltd filed Critical Shandong Huasheng Pesticide Machinery Co Ltd
Publication of WO2018196567A1 publication Critical patent/WO2018196567A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for

Definitions

  • the present disclosure relates to the field of gasoline engine control, and in particular to a double pull wire operating handle and a gasoline engine.
  • Portable tools such as knapsack blowers and knapsack sprayers usually use the gasoline engine as the supporting power to drive the impeller and other actuators to achieve cleaning, spraying, etc., and operate the handle as an important control component for the start and stop of the gasoline engine. And the speed changes.
  • the piston will continue to move under the action of inertia, and the fresh mixture can still directly enter the high-temperature silencer through the carburetor and the cylinder.
  • the purpose of the present disclosure includes, for example, to provide a double pull handle handle that improves the deficiencies of the prior art by being able to manipulate the two pull wires of the handlebar with one hand control, one of which is connected to the valve of the gasoline engine intake passage
  • the other pull wire controls the throttle of the gasoline engine carburetor, that is, the double-wire control handle can control the stop and rotation speed of the gasoline engine with one hand.
  • the left casing and the right casing can form a complete handlebar casing after being fastened;
  • a throttle operating handle equipped with a throttle cable, a sleeve rotatably mounted on the inner side of the left casing, and a groove and a stopper, wherein the sleeve is provided with a reset torsion spring;
  • the self-locking handle is rotatably mounted on the locking shaft provided on the inner side of the left casing, and is provided with a hook which cooperates with the groove to make the throttle operating handle self-locking at the time of idling;
  • the throttle operating handle and the manual operating portion of the self-locking handle are exposed to the outside of the handle housing;
  • a parking trolley parking handle which is slidably mounted on the card slot provided at the edge of the left casing, and is advanced along the card slot and pushed back to the parking handle, so that the parking handle is locked in the starting and parking positions.
  • the parking handle is provided with a handle and a spring piece disposed on an inner side of the card slot, and the spring piece is closely attached to a positioning shaft disposed on the inner side of the housing. on.
  • the spring piece has a semi-arc shape, and the convex side of the arc is in contact with the positioning axis.
  • the self-locking handle is provided with an upper arm hook and a lock handle including a hook, and the upper arm hook and the lock handle are mutually matched by a concave-convex structure to form a complete sleeve.
  • the sleeve is provided with a self-locking torsion spring.
  • the double pull handle handle is further provided with a throttle limit handle including a rotatably mounted shift fork on the outer side of the left housing, the shift fork cooperates with the stop.
  • the left housing is provided with a fan-shaped through hole, and the fork is rotatably passed through the fan-shaped through hole.
  • the throttle limit handle is coaxial with the throttle operating handle.
  • Embodiments of the present disclosure provide a dual pull handle handle including a handle housing, a throttle handle, a self-locking handle, and a parking handle;
  • the throttle operating handle is rotatably coupled to the handle housing, the throttle operating handle is coupled to a throttle cable, and the throttle operating handle is provided with a first recess;
  • a self-locking handle rotatably coupled to the handle housing, the self-locking handle being configured to cooperate with the first recess and to cause the throttle operating handle to be self-locking at idle speed State of the hook;
  • the parking handle is connected with a parking cable configured to control a gasoline engine intake passage valve, the handle housing is provided with a card slot, and the parking handle is slidably disposed in the card slot and advanced along the card slot When the parking handle is pushed out, the parking handle can be locked in a starting position or a parking position.
  • the parking handle includes an externally connected handle and a spring piece, the handle is located outside the card slot, the spring piece is located in the card slot, and the handle housing is disposed in the handle Positioning a shaft, the spring piece abutting the positioning shaft, the spring piece is provided with two recessed areas, wherein the positioning shaft is located when the parking handle is in the starting position or the parking position A recessed area.
  • the spring piece has an arc shape, and the convex side of the circular arc is in contact with the positioning axis.
  • the self-locking handle comprises an upper arm hook and a lock handle
  • the pull hook is located on the upper arm hook
  • the upper arm hook and the lock handle are mutually matched by a concave-convex structure to form a sleeve
  • the handle housing is inside the handle
  • a locking shaft is provided, and the sleeve is rotatably sleeved with the locking shaft.
  • the double-wire operating handle further includes a self-locking torsion spring, the self-locking torsion spring being coupled to the sleeve, the self-locking torsion spring having the hook having a proximity to the first groove Sports trends.
  • the double pull handle handle further includes a throttle limit handle, the throttle limit handle is rotatably coupled to the handle housing, and the throttle limit handle is provided with a shift fork, the throttle The joystick is provided with a stop that mates with the stop.
  • the handle housing is provided with a fan-shaped through hole, and the fork is rotatably disposed in the fan-shaped through hole.
  • the throttle operating handle is provided with a throttle hook hole, and one end of the throttle cable is provided with a throttle cable pull hook, and the throttle hook hole is configured to hook the throttle cable pull hook.
  • the parking handle is provided with a hook hole, and one end of the parking cable is provided with a parking cable hook, and the hook hole is configured to hook the parking cable hook.
  • Embodiments of the present disclosure also provide a gasoline engine including the above-described double-wire operated handlebar having all of the functions of the dual-wire operating handle.
  • the double pull wire manipulation handlebar can control the switch of the gasoline engine intake passage valve by one hand, and can also control the gasoline engine throttle opening degree, that is, control the instantaneous stop and rotation speed change of the gasoline engine, and at the same time, the throttle control handle It can be stopped at any position. Therefore, it can effectively solve the phenomenon that the valve opening of the gasoline engine inlet passage and the opening of the gasoline engine can be separately controlled by both hands, and the labor intensity of the operator is greatly reduced, and the working state is effectively improved. .
  • Figure 1 is a schematic view showing the assembly of the double-wire operating handle in the present disclosure
  • Figure 2 is a view taken along line E in Figure 1;
  • FIG. 3 is a schematic structural view of the double pull wire manipulation handle in an idle state in the present disclosure
  • FIG. 4 is a schematic structural view of the double pull wire manipulation handle in the high speed state in the present disclosure
  • FIG. 5 is a schematic structural view of the double pull wire manipulation handle in the stop state in the present disclosure.
  • Figure 6 is a cross-sectional view taken along line A-A of Figure 5;
  • Figure 7 is a cross-sectional view taken along line B-B of Figure 5;
  • Figure 8 is a schematic structural view of a left casing
  • FIG. 9 is a schematic structural view of the throttle operating handle
  • Figure 10 is a view taken along the line H in Figure 9;
  • Figure 11 is a view taken in the direction of G in Figure 10;
  • Figure 12 is a schematic view of the structure of the parking handle (excluding the spring piece);
  • Figure 13 is a view taken in the direction of arrow F in Figure 12;
  • Figure 14 is a schematic structural view of a self-locking handle
  • Figure 15 is a schematic structural view of a lock handle
  • Figure 16 is a view taken in the direction of K in Figure 15;
  • Figure 17 is a schematic view showing the structure of the upper arm hook
  • Figure 18 is an X-direction view of Figure 17;
  • Figure 19 is a cross-sectional view taken along line C-C of Figure 5;
  • Figure 20 is a schematic view showing the structure of the throttle limit handle.
  • Icons 1-throttle limit handle; 2-parking handle; 3-self-locking handle; 4-left housing; 5-right housing; 6-self-tapping screws; 7-sheath tube; 8- parking cable; - Throttle cable; 10-screw shaft; 11-throttle operating handle; 12-hook hole; 13-spring piece; 14-reset torsion spring; 15-positioning shaft; 16-upper arm hook; 17-locking shaft; 18-self-locking Torsion spring; 19-parking cable hook; 20-switch fork; 21-card slot; 22-first groove; 23-throttle hook hole; 24-throttle cable hook; 25-baffle; 26-stop column; Anti-off nut; 28-stop; 29-lace; 30-sleeve; 31-locking hole; 32-locking handle; 33-fan-shaped through hole; 34-parking line sheath; 35-throttle line sheath; Socket; 37-jack; 38-handle handle; 39-through hole; 40-screw sleeve; 41-
  • connection may also be a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the double-wire operating handle includes a left housing 4 (including a card slot 21, a positioning shaft 15, a locking shaft 17, and a blocking post 26) that are fastened together to form a handle housing.
  • the parking handle 2 is slidably mounted on the card slot 21 provided at the edge of the left casing 4, and the parking handle 2 is provided with a socket 36 for the spring piece 13 to be inserted, and the convex side of the arc of the spring piece 13 is tightly attached to the positioning shaft 15 Sticking together, the handle shank 38 is located outside the handlebar housing for pushing by the finger, and the hook handle 12 provided in the parking handle 2 is configured to place the parking cable hook 19 of the parking cable 8.
  • the self-locking handle 3 is formed by the coupling of the upper arm hook 16 and the locking handle 32 through the protrusion 44 and the second groove 43.
  • the coupling portion forms a sleeve 30 including a locking hole 31.
  • the upper arm hook 16 is provided with a hook 29, and the hook 29 is The first recess 22 of the throttle operating handle 11 is engaged.
  • the sleeve 30 is provided with a self-locking torsion spring 18.
  • the locking hole 31 is placed on the locking shaft 17 on the inner side of the left housing 4.
  • the locking handle 32 is located on the outer side of the handle housing.
  • the self-locking handle 3 is rotatably mounted in the left housing 4.
  • the sleeve 30 can be formed by the concave-convex structure.
  • the upper arm hook 16 is provided with a protrusion 44
  • the lock handle 32 is provided with a second groove 43
  • the upper arm hook 16 is provided with a second groove 43
  • the lock handle 32 is provided with protrusions 44; or each of them is provided with a protrusion 44 and a second groove 43, which can be matched with each other.
  • the throttle limit handle 1 is rotatably mounted on the outer side of the left housing 4 of the handle housing through the through hole 39 of the left housing 4 through the screw shaft 10, and a retaining nut 27 is mounted on the inner side of the left housing 4, and the oil limit is
  • the shifting fork 20 provided in the position handle 1 is passed through the sector-shaped through hole 33 of the left casing 4.
  • the throttle sleeve 40 provided by the throttle operating handle 11 is set to rotate on the screw shaft 10, and one end is provided with a first groove 22 and a throttle hook hole 23, and the throttle hook hole 23 is configured to hook the throttle cable hook 24, and the throttle operating handle 11
  • the other side is provided with a stopper 28 that cooperates with the shift fork 20.
  • the throttle operating handle 11 is further provided with a shutter 25 on which the reset torsion spring 14 is mounted. One end of the return torsion spring 14 abuts against the shutter 25, and the other end is inserted into the insertion hole 37 inside the left casing 4.
  • Both the throttle limit handle 1 and the throttle operating handle 11 are rotatable coaxially about the screw shaft 10.
  • the parking cable hook 19 provided by the parking cable 8 is hooked in the hook hole 12, and has a parking line sheath 34 on the outer casing and a valve connected to the intake passage of the gasoline engine at the other end;
  • the throttle cable hook 24 provided on the throttle cable 9 is hooked in the throttle hook hole 23, has a throttle wire sheath 35, and the other end is connected to the throttle of the gasoline engine carburetor.
  • the parking line sheath 34 and the throttle wire sheath 35 are respectively placed in the parking line guard 41 and the throttle line guard 42 which are arranged side by side in the left casing 4.
  • the left housing 4 and the right housing 5 are fastened together by a tapping screw 6 to form a complete handle.
  • the positioning shaft 15 is located at the "open" position of the spring piece 13, and the parking cable 8 connected to the parking handle 2 completely opens the gasoline engine intake passage valve, and the gasoline engine connected to the throttle cable 9
  • the throttle valve is in a low fuel supply state.
  • the gasoline engine is in an idle state and runs at a low speed.
  • the hook 29 of the upper arm hook 16 hooks the first groove 22 of the throttle operating handle 11 to make the throttle
  • the joystick 11 is in a locked state, thereby preventing a safety hazard caused by the accidental actuation of the throttle operating handle 11; at this time, the throttle limit handle 1 cannot be rotated.
  • the self-locking handle 3 is pulled by hand, the hook 29 will rotate along with and away from the first recess 22, and the throttle operating handle 11 will not be locked and released.
  • the throttle operating handle 11 is pulled by the index finger to connect the throttle cable.
  • the gasoline engine throttle opening of 9 will become larger, and the gasoline engine will gradually be in a high speed state.
  • the throttle operating handle 11 is in the released state.
  • the gasoline engine throttle opening is the largest and the machine is in the high speed state.
  • the positioning shaft 15 is located at the "off" position of the spring piece 13, and the parking cable 8 can be driven to move.
  • the gasoline engine intake passage valve on the pull wire 8 will be immediately closed, blocking the entry of the gasoline engine mixture, so that the gasoline engine immediately stops running and the machine is in a stopped state.
  • the gasoline engine intake passage valve and the throttle valve can be controlled by the parking handle 2 and the throttle operating handle 11 in the case of holding the handlebar with one hand, thereby avoiding having to operate the parking device by both hands and
  • the throttle control handle brings inconvenience; at the same time, the double pull control handle also has a throttle self-locking function, further eliminating the hazard caused by the mis-fueling; when the machine is at a certain speed for a long time, it can pass the throttle limit handle 1 Restricting the throttle operating handle 11 to any specific position does not require long-term hand-held operation, greatly reducing labor intensity and improving humanized manipulation.
  • the double pull handle also has a throttle self-locking function and a throttle limit function.
  • Throttle self-locking function When the gasoline engine is in an idle running state, in order to prevent accidental activation of the throttle operating handle 11 to cause a safety hazard caused by a sudden increase in the gasoline engine speed, the self-locking handle 3 locks the throttle operating handle 11 in an idle state, at this time only The throttle lever 11 can be activated only after the self-locking handle 3 is touched.
  • Throttle limit function When the machine is at a certain speed for a long time, the throttle control handle 11 can be restricted to any specific position by the throttle limit handle 11 without long-term hand-held operation, which greatly reduces the labor intensity.
  • the double-drawing manipulator can control the gasoline engine intake passage and the gasoline engine oil intake by one hand, that is, control the gasoline engine's stop and rotation speed change, and also provide the humanization and safety guarantee for the operator.
  • an embodiment of the present disclosure further provides a double pull handle handle, which includes a handle housing, a throttle handle 11, a self-locking handle 3 and a parking handle 2;
  • the throttle operating handle 11 is rotatably connected to the handle housing, the throttle operating handle 11 is connected with a throttle cable 9, the throttle operating handle 11 is provided with a first recess 22;
  • Self-locking handle 3 the self-locking handle 3 is rotatably connected to the handle housing, the self-locking handle 3 is provided with a hook 29 that cooperates with the first recess 22 and causes the throttle operating handle 11 to be in a self-locking state when idle;
  • the parking handle 2 is connected with a parking cable 8 configured to control a gasoline engine intake passage valve.
  • the handle housing is provided with a card slot 21, and the parking handle 2 is slidably disposed in the card slot 21, and advances or pushes the parking handle along the card slot 21. At 2 o'clock, the parking handle 2 can be locked in the starting position or the parking position.
  • the handle housing includes a left housing 4 and a right housing 5, and the two are fastened to form a mounting space, and most of the components of the double-wire operating handle are located in the installation space.
  • the parking handle 2 includes a hand-operated handle 38 and a spring piece 13 .
  • the handle shank 38 is located outside the card slot 21
  • the spring piece 13 is located in the card slot 21 .
  • the handle housing is provided with a positioning shaft 15 and a spring.
  • the sheet 13 abuts against the positioning shaft 15, and the spring piece 13 is provided with two recessed areas so that when the parking handle 2 is in the starting position or the parking position, the positioning shaft 15 is located in one of the recessed areas.
  • the handle shank 38 is provided with two sockets 36.
  • the two ends of the spring piece 13 are engaged with the corresponding two sockets 36 to be fixed relative to the handle shank 38, and the two recesses of the spring piece 13
  • the area is better to accommodate the positioning shaft 15, in use, firstly overcome the elastic force of the spring piece 13, and then push the handle shank 38 to move, if the positioning shaft 15 is transferred from one recessed area to the other. Then, under the force of the spring piece 13, the handle shank 38 is not easily detached.
  • the two recessed areas correspond to the starting position and the parking position, respectively.
  • the spring piece 13 has an arc shape, and the side of the protrusion 44 of the circular arc is in contact with the positioning shaft 15 .
  • the spring piece 13 in the shape of a circular arc can generate a large force similar to the principle of a bow.
  • the self-locking handle 3 includes an upper arm hook 16 and a lock handle 32.
  • the pull hook 29 is located on the upper arm hook 16.
  • the upper arm hook 16 and the lock handle 32 are mutually matched by the concave-convex structure to form a sleeve 30, and the handle shaft is provided with a lock shaft. 17.
  • the sleeve 30 is rotatably sleeved with a locking shaft 17.
  • the double-wire operating handle further includes a self-locking torsion spring 18, and the self-locking torsion spring 18 is coupled to the sleeve 30, and the self-locking torsion spring 18 causes the hook 29 to have a tendency to move closer to the first recess 22.
  • the hook 29 can be hooked to the first recess 22 more stably.
  • the double pull handle also includes a throttle limit handle 1 , the throttle limit handle 1 is rotatably connected to the handle housing, the throttle limit handle 1 is provided with a shift fork 20, and the throttle control handle 11 is provided with a stop Block 28, shift fork 20 mates with stop 28.
  • the handle housing is provided with a fan-shaped through hole 33, and the fork 20 is rotatably disposed in the fan-shaped through hole 33.
  • the throttle operating handle 11 is provided with a throttle hook hole 23, and one end of the throttle cable 9 is provided with a throttle cable 9 hook 29, and the throttle hook hole 23 is configured to hook the throttle cable 9 hook 29.
  • the parking handle 2 is provided with a hook hole 12, and one end of the parking cable 8 is provided with a parking cable hook 19, and the hook hole 12 is configured to hook the parking cable 8 hook 29.
  • Embodiments of the present disclosure also provide a gasoline engine including the above-described dual pull handle handle having all of the functions of the dual pull handle.
  • the double pull handle handlebar includes a left housing 4, a right housing 5, a throttle limit handle 1, a parking handle 2, a self-locking handle 3, a self-tapping screw 6, a sheath tube 7, and a parking line sheath 34. And throttle line sheath 35.
  • Both the left housing 4 and the right housing 5 are fastened to form a handle housing, and the two are stably connected by the tapping screws 6.
  • the throttle limit handle 1 is rotatably coupled to the left housing 4 and is configured to restrict the throttle operating handle 11, the parking handle 2 being slidably coupled to the handle housing, configured to control the valve of the intake passage of the gasoline engine
  • the self-locking handle 3 is rotatably coupled to the handlebar housing and is configured to cause the throttle operating handle 11 to be in a self-locking state.
  • the sheath tube 7 is connected to the end of the handle housing, and the sheath tube 7 is configured to be connected with other tube bodies, and is internally provided with a parking line sheath 34 and a throttle line sheath 35, and the parking line sheath 34 is configured to The parking cable 8 is installed, and the throttle wire sheath 35 is configured to mount the throttle cable 9.
  • the throttle operating handle 11 is rotatably coupled to the handle housing, which is configured to control the throttle opening of the gasoline engine.
  • the screw shaft 10 passes through the handle housing, the throttle limit handle 1 and the throttle control handle from the outside to the inside. 11 rotates coaxially about the screw shaft 10.
  • the throttle operating handle 11, the throttle limit handle 1 are located on the left side, and the parking handle 2 and the self-locking handle 3 are located on the right side.
  • the handle is held by the right hand, the palm of the hand is against the self-locking handle 3, the thumb is used to push the parking handle 2 to slide, the forefinger acts on the throttle operating handle 11, and the thumb or the other hand can act.
  • this structure is ergonomically designed and more user-friendly.
  • the self-locking handle 3 is rotatably disposed on the lock shaft 17 in the handle housing, and is rotated about the lock shaft 17, a part of the self-locking handle 3 is located outside the handle housing, and the other part is located inside the handle housing.
  • the end of the self-locking handle 3 is provided with an upper arm hook 16 having a hook 29.
  • the throttle operating handle 11 is rotatably disposed on the screw shaft 10 in the handle housing, and is rotated around the screw shaft 10.
  • the throttle operating handle 11 is provided with a first recess 22, and when the hook 29 is located in the first recess 22, The throttle lever 11 is locked to prevent it from rotating.
  • a self-locking torsion spring 18 is mounted at the rotational joint of the self-locking handle 3, which causes the hook 29 to have a tendency to hook into the first recess 22, improving the locking effect.
  • the throttle hook hole 23 provided in the throttle operating handle 11 is configured to catch the throttle cable 9 hook 29 at the end of the throttle cable 9 to control the throttle cable 9.
  • the rotary torsion spring 14 is also mounted at the rotary joint of the throttle operating handle 11. When the throttle operating handle 11 is pressed, the throttle opening becomes large, and after being released, the throttle operating handle 11 is reset by the action of the reset torsion spring 14, thereby Make the throttle opening smaller.
  • the parking handle 2 is slidably coupled to the handlebar housing, a portion of which is located outside the card slot 21 of the handlebar housing, and a portion of which is located inside the card slot 21.
  • the parking handle 2 includes a push handle 38 and a spring tab 13 that are connected to each other.
  • the push handle 38 is located outside the card slot 21, and the spring tab 13 is located inside the card slot 21 and abuts against the positioning shaft 15 located in the handle housing.
  • the spring piece 13 has two recessed areas (which can be understood as a starting position and a parking position), and the end of the parking handle 2 is provided with a hook hole 12 which is configured to catch the parking cable hook 19 at the end of the parking cable 8.
  • the other end of the parking cable 8 is used to control the valve of the intake passage of the gasoline engine.
  • the elastic force of the spring piece 13 can make the positioning shaft 15 relatively fixed to the starting position and the parking position.
  • the stopper 26 provided in the handle abuts against one end of the self-locking torsion spring 18.
  • the hook 29 is caught in the first recess 22, so that the throttle operating handle 11 is in a self-locking state.
  • the opening degree of the throttle is small, and when the parking handle 2 is at the starting position, the intake passage of the gasoline engine Under the control of the valve, the intake passage is fully opened, and if the gasoline engine is started, it is in an idle state.
  • FIG. 4 the structure in FIG. 4 is the same as the structure in FIG. 3, except that the hook 29 in FIG. 4 is disengaged from the first recess 22, and the throttle operating handle 11 is in a released state, which can be freely rotated, and thus can be By rotating, the throttle cable 9 is pulled, so that the gasoline engine is at different running speeds.
  • the shift fork 20 can define the throttle operating handle 11 in its position.
  • FIG. 5 the structure in FIG. 5 is the same as that in FIG. 4, except that in any state of the throttle operating handle 11, as long as the parking handle 2 is pushed, the controlled parking cable 8 controls the valve to close. Then, the gasoline engine mixture can be blocked from entering, so that the gasoline engine stops immediately and it is in a parking state.
  • the self-locking handle 3 is operated, so that the throttle operating handle 11 is in a self-locking state, so that safety can be improved to a certain extent.
  • the shift fork 20 cooperates with the stop 28 to implement the throttle limit handle 1 to limit the throttle operating handle 11.
  • the screw shaft 10 passes through the left housing 4 and enters the inside of the handle housing.
  • the anti-off nut 27 mounted inside the left housing 4 can effectively prevent the screw shaft 10 from coming off.
  • the end of the self-locking handle 3 is provided with an upper arm hook 16 having a pull hook 29 that cooperates with the first recess 22 of the throttle operating handle 11, so that self-locking can be achieved, and the throttle hook on the throttle operating handle 11 can be realized. 29 holes, can effectively hold the throttle cable hook 24 to avoid falling off.
  • a through hole 39 provided in the left casing 4 passes through the screw shaft 10, and a fan-shaped through hole 33 is provided to pass the fork 20, and the insertion hole 37 is provided to pass one end of the return torsion spring 14 .
  • the positioning shaft 15 is disposed to abut against the spring piece 13 in the card slot 21, and the locking shaft 17 is provided to rotate the self-locking handle 3 thereabout.
  • the parking line guard 41 provided in the handle is used to mount the parking line sheath 34; and the throttle line guard 42 is provided for mounting the throttle line sheath 35.
  • a first recess 22 provided by the throttle operating handle 11 is configured to cooperate with the hook 29; a throttle hook hole 23 is provided which is configured to cooperate with the throttle cable hook 24; and a baffle 25 is provided which is configured Abutting one end of the reset torsion spring 14; a screw sleeve 40 is provided, which is provided with a set screw shaft 10.
  • a stop 28 disposed on the other side of the throttle operating handle 11 is configured to mate with the shift fork 20.
  • the parking handle 2 includes a handle shank 38 and a spring piece 13, and the handle shank 38 is provided with two sockets 36. The two ends of the spring piece 13 are snapped into the two sockets 36 to realize The push handle 38 is relatively fixed, and the hook hole 12 provided on the handle shank 38 is configured to cooperate with the parking cable hook 19.
  • the self-locking handle 3 includes a lock handle 32 and an upper arm hook 16.
  • the lock handle 32 and the upper arm hook 16 are relatively fixed by the cooperation of the protrusion 44 and the second recess 43, and are formed in a relatively fixed portion.
  • the complete sleeve 30, the sleeve 30 has a locking bore 31 that cooperates with the locking shaft 17 for a rotational connection.
  • one end of the upper arm hook 16 forms a hook 29 that is configured to mate with the first recess 22, and the other end of the upper arm hook 16 forms a portion of the sleeve 30, which also has a locking aperture 31. And a second groove 43.
  • the left housing 4 is provided with a receptacle 37 that is configured to mate with the other end of the return torsion spring 14 to effect relative fixation therebetween.
  • the shift fork 20 on the throttle limit handle 1 is configured to cooperate with the stop 28 on the throttle operating handle 11 to effect the restriction of the throttle operating handle 11.
  • the double-wire operating handle is mounted on a gasoline engine
  • the gasoline engine is generally a two-stroke low-emission gasoline engine, and is used on some portable tools, such as a backpack-type hair dryer, a knapsack spray duster, a parking machinery control mechanism, and the like.
  • the present disclosure provides a double-wire operating handle, which has a simple structure, low cost, and can be controlled by one hand to control the stop and rotation speed of the gasoline engine, and reduce the phenomenon of fire and fire at the shooting and exhaust ports.

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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)
  • Mechanical Control Devices (AREA)

Abstract

La présente invention se rapporte au domaine de la commande de moteurs à essence. L'invention concerne un levier de commande à deux cordes et un moteur à essence. Le levier de commande à deux cordes comprend : un carter gauche (4) ; un carter droit (5) ; une poignée de commande de papillon des gaz (11) ; une poignée à verrouillage automatique (3) ; et une poignée d'arrêt (2). La poignée d'arrêt (2) est installée coulissante au niveau d'une rainure de mise en prise (21) agencée au niveau d'un bord du boîtier gauche (4). Lorsqu'elle est poussée vers l'avant ou vers l'arrière le long de la rainure de mise en prise (21), la poignée d'arrêt (2) peut être verrouillée en une position de départ ou en une position d'arrêt. Les deux cordes du levier de commande peuvent être commandées d'une seule main, une corde (8) étant reliée à une soupape d'un passage d'admission d'air d'un moteur à essence, et l'autre corde (9) commandant un papillon des gaz d'un carburateur du moteur à essence. Autrement dit, le levier de commande à deux cordes permet la commande d'arrêt et un changement de vitesse de rotation d'un moteur à essence d'une seule main.
PCT/CN2018/081741 2017-04-29 2018-04-03 Levier de commande à deux cordes et moteur à essence Ceased WO2018196567A1 (fr)

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CN107044351A (zh) * 2017-04-29 2017-08-15 山东华盛农业药械有限责任公司 双拉线操纵手把
CN114233484A (zh) * 2022-01-11 2022-03-25 山东华盛农业药械有限责任公司 手自一体式操纵盒组合

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