CN213627794U

CN213627794U - Labor-saving handle

Info

Publication number: CN213627794U
Application number: CN202021687973.4U
Authority: CN
Inventors: 胡全宇
Original assignee: Yongkang Maojin Garden Machinery Co ltd
Current assignee: Yongkang Puyuan Tools Co.,Ltd.
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-07-06
Anticipated expiration: 2030-08-13

Abstract

The utility model relates to a garden machine technical field specifically discloses a laborsaving type hand (hold), including handle portion (100), the outside one side of handle portion is rotated and is equipped with infinitely variable speed mechanism (200), the inside rotation of handle portion is equipped with throttle line stay cord portion (300), the inside of handle portion is equipped with shifter (500) along the rotation face looks vertically direction activity with infinitely variable speed mechanism, shifter and throttle line stay cord portion clearance fit, throttle line stay cord portion passes through the shifter and is connected with infinitely variable speed mechanism, the shifter passes through self slip and the separable cooperation of infinitely variable speed mechanism. The utility model has the characteristics of the operation is difficult to fatigue.

Description

Labor-saving handle

Technical Field

The utility model relates to a garden machine technical field, in particular to laborsaving hand (hold).

Background

A functional component, namely a throttle switch component, is required to be arranged on a handle of the garden machine, and the rotating speed of the garden machine is controlled through the switch component on the handle in use. The patent document with the publication number of 'CN 202194729U' discloses a rotary type accelerator operating handle for garden machinery, which comprises a handle shell, wherein an accelerator trigger, an accelerator trigger lock and a rotary bolt are arranged on the handle shell, the accelerator trigger is rotatably connected with the handle shell, the front end of the handle shell is sleeved with a connecting seat, the front end of the accelerator trigger is connected with a limiting block, and the tail end of the limiting block can rotate to a fixed position at the rear end of the rotary bolt and rotate to an adjusting position at the upper end of the rotary bolt; the front end of throttle trigger is connected with the stopper in this patent, and the stopper end is rotatable to the fixed position of rotatory bolt rear end and rotates the adjustment position to rotatory bolt upper end, can the interlocking between stopper and the rotatory bolt, prevents to press the throttle trigger when having pulled rotatory bolt or the rotatory bolt of adjustment in operation process, and the back handle rotation is driven in high-speed function to equipment, hinders oneself or other people. The accelerator trigger can be controlled to accelerate by pressing the accelerator trigger all the time by an operator, if the machine needs to run at a certain rotating speed time period, the accelerator trigger is held by fingers for a long time to keep a state, and the operator can feel fatigue easily after working for a long time.

Therefore, the existing operating handle for the garden machine has the problem that the operation is easy to be fatigued.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the above-mentioned technical problem that current operating handle who is used for garden machine exists, provide an operation and be difficult to tired laborsaving hand (hold).

The technical scheme of the utility model: the utility model provides a laborsaving hand (hold), includes the handle portion, the outside one side of handle portion is rotated and is equipped with stepless speed change mechanism, the inside rotation of handle portion is equipped with throttle wire stay cord portion, the inside of handle portion is equipped with the shifter along the rotation plane relative perpendicular direction activity with stepless speed change mechanism, shifter and throttle wire stay cord portion clearance fit, throttle wire stay cord portion is connected with stepless speed change mechanism through the shifter, the shifter passes through self slip and stepless speed change mechanism separable cooperation. The utility model has the advantages that the stepless speed change mechanism is arranged to drive the rope pulling part of the throttle cable, the opening degree of the throttle can be controlled only by rotating the stepless speed change mechanism, the accelerator trigger can be controlled to accelerate without pressing the throttle trigger by fingers, and the operator can not feel fatigue even if the working time is long; the utility model discloses a set up the shifter and realize that infinitely variable mechanism is whether to throttle cable stay cord portion drive control, the switch operation is more convenient.

Preferably, the handle part is composed of a first shell and a second shell which are matched with each other, and a delay switch and/or a flameout switch are arranged on the first shell and/or the second shell. The lithium battery is started and stopped in a delayed manner by arranging a delay switch, wherein the power mode comprises an electric mode and an oil mode, the oil mode is driven by gasoline or diesel, and the delay switch is used for delay control during electric driving; the flameout switch is used for starting and stopping the instrument, is used for electrifying and powering off if the instrument is electrically controlled, and is used for switching on and off an oil path if the instrument is controlled by oil motion; wherein multiple switch control modes can be integrated.

Preferably, the first shell and the second shell are fully or semi-wrapped with rubber coatings, and the rubber coatings are provided with concave parts which are suitable for being held by hands. Through setting up the rubber coating to set up the depressed part that suits with the staff when gripping on the rubber coating, the comfort level effect when letting hold is better.

Preferably, the stepless speed change mechanism comprises a control handle, a mounting hole is formed in the first shell or the second shell, a connecting seat is rotatably arranged in the mounting hole, the connecting seat is fixedly connected with the control handle through a connecting structure, and the switching mechanism is in separable fit with the connecting seat through self sliding. When the control handle is used for matching the connecting seat with the conversion mechanism, the control handle can conveniently control the rotation of the pull rope part of the throttle cable, so that the rotation operation is more convenient, and the stepless speed change function can be realized by rotating the opening degree of the control handle; the connecting seat is used for realizing the separation and the matching with the conversion mechanism, thereby realizing whether the accelerator cable pull rope part adopts a stepless speed change mechanism for rotation control.

Preferably, the control handle is provided with a spring limiting mechanism, the outer wall surface of the first shell or the second shell is provided with a plurality of scale grooves, and the scale grooves are matched with the spring limiting mechanism. The arbitrary big or small aperture of brake valve lever is controlled under the elasticity dynamics by spring stop gear, when changing between the location aperture size, can be along with the sound of dazzling and the slight vibration sense that send when jumping between spring stop gear and the scale groove to the operator can perceive the size of aperture, need not use the sight to survey, when the throttle aperture stops on arbitrary scale mark, need not press brake valve lever all the time and use the hand management and control, has solved the work fatigue who brings with the long-term management and control of hand.

Preferably, the spring limiting mechanism comprises a friction block, the friction block is connected to the side portion of the control handle through a first elastic piece, and the friction block is matched with the scale groove. The arbitrary big or small aperture of brake valve lever is controlled by the clutch block under the elasticity dynamics of first elastic component, when changing between the location aperture size, can be along with the sound of dazzling and the slight vibration sensation that send when jumping between clutch block and the scale groove to the operator can perceive the size of aperture, need not use the sight to survey, when the throttle aperture stops on arbitrary scale mark, need not press brake valve lever all the time and use the hand management and control, has solved the work fatigue that brings with the long-term management and control of hand.

Preferably, the throttle wire pulling part comprises a limiting part, the limiting part is provided with a limiting slideway and a limiting hole, the switching mechanism is movably arranged in the limiting slideway and the limiting hole in the direction perpendicular to the rotation surface of the switching mechanism, the switching mechanism rotates simultaneously with the limiting slideway in the rotation direction of the switching mechanism, and the limiting part is fixedly provided with the throttle wire pulling part. The limiting slide way and the limiting hole are used for limiting the switching mechanism, the limiting mode can ensure that the switching mechanism slides stably left and right, and the selection is to be matched with the stepless speed change mechanism or the selection is to be matched with the trigger mechanism. The cross-section defining the ramps and defining the apertures may be of rectangular or polygonal configuration.

Preferably, the conversion mechanism comprises a conversion column which is movably arranged in the limiting slide way and the limiting hole in the direction vertical to the rotation surface of the conversion mechanism, one end of the conversion column is provided with a second matching part which can be separately matched with the first matching part, one end of the conversion column positioned at the second matching part is provided with a button column, the button post is movably arranged in the handle part in the direction vertical to the rotating surface of the switching mechanism, the button column part penetrates through the handle part and then is positioned outside the handle part, a third matching part is arranged at one end of the conversion column far away from the button column, the connecting seat is provided with a connecting groove, the inner wall of the connecting groove is provided with a fourth matching part which can be separately matched with the third matching part, a rebound structure is arranged at one end, located at the third matching part, of the conversion column and is connected or contacted with the groove bottom of the connecting groove; the conversion column is movably connected with the accelerator cable part through a guide structure. The conversion column is a cube-shaped column, can stably slide left and right in the limiting slide way and the limiting hole, and can stably drive the accelerator cable pull rope part to rotate simultaneously; the button column is manually pressed by a user so as to control whether the conversion column is matched with the stepless speed change mechanism or not, and the button column is conveniently and quickly switched on and off; the third matching part is of a cubic structure, the conversion column can be driven and controlled by the stepless speed change mechanism when the third matching part is matched with the fourth matching part, and the action of the stepless speed change mechanism can not generate any action on the conversion column when the third matching part is separated from the fourth matching part; the connecting groove is used for providing a setting position for the fourth matching part and also providing a movable space for the conversion column when the conversion column is matched with or separated from the stepless speed change mechanism; the springback structure is used for smoothly and quickly popping the conversion column out of the connecting groove when the third matching part and the fourth matching part are required to be separated and matched; the guide structure is used for limiting the left-right sliding of the conversion column, and under the guide effect of the guide structure, the conversion column can only slide left and right within a limited distance range, so that whether the stepless speed change mechanism is switched on or off can be realized.

Preferably, the guide structure comprises a guide rod, one end of the guide rod is rotatably arranged on the limiting part, a guide track is arranged on the side part of the conversion column, and the other end of the guide rod is movably arranged in the guide track. The movable fit of the guide rail and the guide rod is used for limiting the left-right sliding of the conversion column, and under the guide effect of the guide rail, the guide rod circularly moves in the track range limited by the guide rail, so that the conversion column can only slide left and right in the limited distance range, and the conversion column can be selectively matched with the stepless speed change mechanism or the trigger mechanism.

Preferably, the guide rail includes a first guide slideway, the first guide slideway is inclined upwards towards the direction of the third matching portion, one end of the first guide slideway close to the third matching portion is connected with a second guide slideway, the second guide slideway is inclined upwards towards the direction far from the third matching portion, one end of the second guide slideway far from the third matching portion is connected with a third guide slideway, the third guide slideway is parallel to the direction of the third matching portion, one end of the third guide slideway far from the third matching portion is connected with a fourth guide slideway, the fourth guide slideway is inclined downwards towards the direction far from the third matching portion, one end of the fourth guide slideway far from the third matching portion is connected with a fifth guide slideway, the fifth guide slideway is inclined downwards towards the direction of the third matching portion, and one end of the fifth guide slideway close to the third matching portion is connected with a sixth guide slideway, the sixth guide slideway inclines obliquely downwards towards the direction far away from the third matching part, one end of the sixth guide slideway far away from the third matching part is connected with a seventh guide slideway, the seventh guide slideway is parallel to the direction of the third matching part, and one end of the seventh guide slideway close to the third matching part is connected with one end of the first guide slideway far away from the third matching part. The guide rails are connected in sequence, and the inclination directions of the guide rails are arranged, so that the conversion column drives the guide rod to move under the pressing action of the button column, the movable matching end of the guide rod can rotate circularly to be matched with the excessive connection part of each guide rail, the trigger mechanism is selected to perform operation control, or the stepless speed change mechanism is selected to perform positioning during operation control, the design is ingenious, and the guide and positioning effects of the guide rod are better.

The utility model discloses following beneficial effect has:

(1) the accelerator cable pulling part is driven by the stepless speed change mechanism, the opening degree of the accelerator can be controlled by only rotating the stepless speed change mechanism, the accelerator trigger can be controlled to accelerate without pressing the accelerator trigger by an operator by fingers, and fatigue can not be felt even if the working time is long;

(2) the stepless speed change mechanism is arranged to realize whether the accelerator cable pulling part is driven and controlled by the stepless speed change mechanism, and the switch operation is more convenient.

Drawings

FIG. 1 is an exploded view of the structure of the present invention;

fig. 2 is a schematic view of a first structure of the present invention;

fig. 3 is a second schematic structural view of the present invention;

FIG. 4 is a schematic structural view of the switching mechanism of the present invention in cooperation with the infinitely variable transmission mechanism, separated from the trigger mechanism;

FIG. 5 is a schematic view of the switching mechanism of the present invention in cooperation with the trigger mechanism and separated from the continuously variable transmission mechanism;

FIG. 6 is an exploded view of the structure of the control handle of the present invention;

FIG. 7 is a schematic view of the half-encapsulated structure of the present invention;

fig. 8 is a schematic structural view of the first housing of the present invention;

FIG. 9 is a schematic structural view of the rope portion of the throttle cable of the present invention;

fig. 10 is a schematic structural diagram of the trigger control mechanism of the present invention;

fig. 11 is a schematic structural view of the transfer mechanism of the present invention;

fig. 12 is a schematic structural view of the trigger mechanism of the present invention.

The labels in the figures are: 100-a handle part, 101-a first shell, 102-a second shell, 103-a time delay switch, 104-a flameout switch, 105-an encapsulation, 106-a depressed part, 107-a mounting hole, 108-a second rotary structure, 200-a stepless speed change mechanism, 201-a control handle, 202-a connecting seat, 203-a connecting structure, 204-a spring limiting mechanism, 2041-a friction block, 2042-a first elastic element, 2043-a mounting block, 2044-a mounting groove, 205-a scale groove, 206-a connecting groove, 207-a fourth matching part, 300-a throttle wire pulling part, 301-a limiting part, 302-a limiting slideway, 303-a limiting hole, 304-a throttle wire pulling part, 400-a trigger mechanism, 401-a first mounting part, 402-a second mounting part, 403-first matching part, 404-first rotating structure, 405-trigger part, 500-converting mechanism, 501-converting column, 502-second matching part, 503-button column, 504-third matching part, 505-rebounding structure, 506-limiting block, 600-guiding structure, 601-guiding rod, 602-guiding track, 6021-first guiding slideway, 6022-second guiding slideway, 6023-third guiding slideway, 6024-fourth guiding slideway, 6025-fifth guiding slideway, 6026-sixth guiding slideway, 6027-seventh guiding slideway, 700-trigger control mechanism, 701-rotating column, 702-control arm, 703-display part, 704-buckling part and 705-clamping groove part.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

A labor-saving handlebar comprises a handlebar part 100, a stepless speed change mechanism 200 is rotatably arranged on one side of the outer part of the handlebar part, a throttle cable pulling part 300 is rotatably arranged in the handlebar part, a switching mechanism 500 is movably arranged in the handlebar part along the direction vertical to the rotating surface of the stepless speed change mechanism and is movably matched with the throttle cable pulling part, the throttle cable pulling part is connected with the stepless speed change mechanism through the switching mechanism, and the switching mechanism is detachably matched with the stepless speed change mechanism through self sliding.

The handle part is composed of a first shell 101 and a second shell 102 which are matched with each other, and a delay switch 103 and/or a flameout switch 104 are/is arranged on the first shell and/or the second shell.

The first shell and the second shell are fully or semi-wrapped with rubber coatings 105, and the rubber coatings are provided with concave parts 106 which are suitable for being held by hands.

The stepless speed change mechanism comprises a control handle 201, a mounting hole 107 is formed in the first shell or the second shell, a connecting seat 202 is rotatably arranged in the mounting hole, the connecting seat is fixedly connected with the control handle through a connecting structure 203, and the switching mechanism is in separable fit with the connecting seat through self sliding.

The control handle is provided with a spring limiting mechanism 204, the outer wall surface of the first shell or the second shell is provided with a plurality of scale grooves 205, and the scale grooves are matched with the spring limiting mechanism.

Spring stop gear includes clutch blocks 2041, and the clutch blocks passes through first elastic component 2042 to be connected in the lateral part of brake valve lever, and the clutch blocks cooperatees with the scale groove.

The throttle cable pulling part comprises a limiting part 301, a limiting slide way 302 and a limiting hole 303 are arranged on the limiting part, the switching mechanism is movably arranged in the limiting slide way and the limiting hole in the direction vertical to the rotation surface of the switching mechanism, the switching mechanism and the limiting slide way rotate simultaneously in the rotation direction of the switching mechanism, and a throttle cable pulling part 304 is fixedly arranged on the limiting part.

The conversion mechanism comprises a conversion column 501, the conversion column is movably arranged in the limiting slide way and the limiting hole in the direction vertical to the rotating surface of the conversion mechanism, a button column 503 is arranged at one end of the conversion column, the button column is movably arranged in the handle part in the direction vertical to the rotating surface of the conversion mechanism, the button column penetrates through the handle part and is positioned outside the handle part, a third matching part 504 is arranged at one end of the conversion column far away from the button column, a connecting groove 206 is arranged on the connecting seat, a fourth matching part 207 which can be matched with the third matching part in a separable mode is arranged on the inner wall of the connecting groove, a rebound structure 505 is arranged at one end of the conversion column which is positioned at the third matching part, and the rebound structure is connected with or contacted with the groove bottom of the connecting groove; the conversion column is movably connected with the accelerator cable part through a guide structure 600.

The guide structure comprises a guide rod 601, one end of the guide rod is rotatably arranged on the limiting part, a guide track 602 is arranged on the side part of the conversion column, and the other end of the guide rod is movably arranged in the guide track.

The guide rail comprises a first guide slide 6021, the first guide slide inclines upwards towards the third matching part, one end of the first guide slide close to the third matching part is connected with a second guide slide 6022, the second guide slide inclines upwards towards the direction far away from the third matching part, one end of the second guide slide far away from the third matching part is connected with a third guide slide 6023, the third guide slide is parallel to the direction of the third matching part, one end of the third guide slide far away from the third matching part is connected with a fourth guide slide 6024, the fourth guide slide inclines downwards towards the direction far away from the third matching part, one end of the fourth guide slide far away from the third matching part is connected with a fifth guide slide 6025, the fifth guide slide inclines downwards towards the direction of the third matching part, one end of the fifth guide slide close to the third matching part is connected with a sixth guide slide 6026, the sixth guide slide way inclines downwards in an inclined mode towards the direction far away from the third matching part, one end, far away from the third matching part, of the sixth guide slide way is connected with a seventh guide slide way 6027, the seventh guide slide way is parallel to the direction of the third matching part, and one end, close to the third matching part, of the seventh guide slide way is connected with one end, far away from the third matching part, of the first guide slide way.

A labor-saving handlebar as shown in FIG. 1 comprises a handle part 100 as shown in FIG. 2, a stepless speed change mechanism 200 is rotatably provided at one side of the outside of the handle part, a throttle wire pulling rope part 300 is rotatably provided inside the handle part, a trigger mechanism 400 is rotatably provided on the handle part, a part of the trigger mechanism is positioned outside the handle part, a part of the trigger mechanism is positioned inside the handle part, the throttle wire pulling rope part is positioned between the stepless speed change mechanism and the trigger mechanism inside the handle part, a switching mechanism 500 is movably provided inside the handle part along the direction perpendicular to the rotating surface of the stepless speed change mechanism, the switching mechanism is movably matched with the throttle wire pulling rope part, the throttle wire pulling rope part is connected with the stepless speed change mechanism or with the trigger mechanism through the switching mechanism, and the switching mechanism is detachably matched with the stepless speed change mechanism or with the trigger mechanism through self-sliding. The utility model has the advantages that the stepless speed change mechanism is arranged to drive the rope pulling part of the throttle cable, the opening degree of the throttle can be controlled only by rotating the stepless speed change mechanism, the accelerator trigger can be controlled to accelerate without pressing the throttle trigger by fingers, and the operator can not feel fatigue even if the working time is long; the utility model continuously keeps the trigger mechanism to ensure the existing common driving function of the pull rope part of the throttle cable; the following are realized by arranging a conversion mechanism: whether choose to use stepless speed change mechanism to throttle cable stay cord portion drive control, still choose to use trigger mechanism to throttle cable stay cord portion drive control, make the drive control mode to throttle cable stay cord portion have the selectivity, just can select through the slip switch mechanism, the conversion mode convenient and fast, when stepless speed change mechanism is to throttle cable stay cord portion drive control, trigger mechanism is to the drive control mode failure of throttle cable stay cord portion, when trigger mechanism is to throttle cable stay cord portion drive control, stepless speed change mechanism is to the drive control mode failure of throttle cable stay cord portion, two kinds of control mode mutual noninterferences, control mode safe and reliable.

The handle part is composed of a first shell 101 and a second shell 102 which are matched with each other, and a delay switch 103 and/or a flameout switch 104 are/is arranged on the first shell and/or the second shell. The lithium battery is started and stopped in a delayed manner by arranging a delay switch, wherein the power mode comprises an electric mode and an oil mode, the oil mode is driven by gasoline or diesel, and the delay switch is used for delay control during electric driving; the flameout switch is used for starting and stopping the instrument, is used for electrifying and powering off if the instrument is electrically controlled, and is used for switching on and off an oil path if the instrument is controlled by oil motion; wherein multiple switch control modes can be integrated.

The first shell and the second shell are fully or semi-wrapped with rubber coatings 105 shown in fig. 3, and the rubber coatings are provided with concave parts 106 which are matched with hands to hold the rubber coatings and are shown in fig. 7. Through setting up the rubber coating to set up the depressed part that suits with the staff when gripping on the rubber coating, the comfort level effect when letting hold is better.

The stepless speed change mechanism comprises a control handle 201 shown in fig. 4, a mounting hole 107 is formed in the first shell or the second shell, a connecting seat 202 shown in fig. 5 is rotatably arranged in the mounting hole, the connecting seat is fixedly connected with the control handle through a connecting structure 203, and the switching mechanism is detachably matched with the connecting seat through self sliding. When the control handle is used for matching the connecting seat with the conversion mechanism, the control handle can conveniently control the rotation of the pull rope part of the throttle cable, so that the rotation operation is more convenient, and the stepless speed change function can be realized by rotating the opening degree of the control handle; the connecting seat is used for realizing the separation and the matching with the conversion mechanism, thereby realizing whether the accelerator cable pull rope part adopts a stepless speed change mechanism for rotation control.

The connecting structure is a structure matched with a screw and a thread, or the connecting structure is a structure matched with a bolt and a nut. The connecting structure is simple in structure and quick in connection.

The control handle is provided with a spring limiting mechanism 204 shown in fig. 6, the outer wall surface of the first shell or the second shell is provided with a plurality of scale grooves 205 shown in fig. 8, and the scale grooves are matched with the spring limiting mechanism. The arbitrary big or small aperture of brake valve lever is controlled under the elasticity dynamics by spring stop gear, when changing between the location aperture size, can be along with the sound of dazzling and the slight vibration sense that send when jumping between spring stop gear and the scale groove to the operator can perceive the size of aperture, need not use the sight to survey, when the throttle aperture stops on arbitrary scale mark, need not press brake valve lever all the time and use the hand management and control, has solved the work fatigue who brings with the long-term management and control of hand.

Spring stop gear includes clutch blocks 2041, and the clutch blocks passes through first elastic component 2042 to be connected in the lateral part of brake valve lever, and the clutch blocks cooperatees with the scale groove. The arbitrary big or small aperture of brake valve lever is controlled by the clutch block under the elasticity dynamics of first elastic component, when changing between the location aperture size, can be along with the sound of dazzling and the slight vibration sensation that send when jumping between clutch block and the scale groove to the operator can perceive the size of aperture, need not use the sight to survey, when the throttle aperture stops on arbitrary scale mark, need not press brake valve lever all the time and use the hand management and control, has solved the work fatigue that brings with the long-term management and control of hand.

The lateral part of brake valve lever is equipped with installation piece 2043, is equipped with mounting groove 2044 on the installation piece, and the clutch blocks passes through the inside of first elastic component setting at the mounting groove. The installation piece and the installation groove provide good installation positions for the first elastic piece, and the stability of the first elastic piece when the elastic acting force of the first elastic piece is exerted is guaranteed.

The first elastic part is a spring or an elastic rubber rod. Specifically, the spring or the elastic rubber rod can be flexibly selected according to the requirement, and other elastic objects which can play the same role can be selected.

The throttle wire pulling part comprises a limiting part 301, a limiting slide way 302 and a limiting hole 303 are arranged on the limiting part, a conversion mechanism is movably arranged in the limiting slide way and the limiting hole in the direction perpendicular to the rotation surface of the conversion mechanism, the conversion mechanism and the limiting slide way rotate simultaneously in the rotation direction of the conversion mechanism, and a throttle wire pulling part 304 shown in fig. 9 is fixedly arranged on the limiting part. The limiting slide way and the limiting hole are used for limiting the switching mechanism, the limiting mode can ensure that the switching mechanism slides stably left and right, and the selection is to be matched with the stepless speed change mechanism or the selection is to be matched with the trigger mechanism. The cross-section defining the ramps and defining the apertures may be of rectangular or polygonal configuration.

The limiting part is of an L-shaped structure, the limiting slide way is arranged on one straight section of the limiting part, the limiting hole is arranged on the other straight section of the limiting part, and the limiting hole is communicated with the limiting slide way. The L-shaped structure, the limiting slide way and the limiting hole are specially designed according to the movement and the function of the conversion mechanism, and have good guiding, limiting and co-rotating functions on the conversion mechanism.

The trigger mechanism comprises a first installation part 401 and a second installation part 402 which are connected as shown in fig. 12, the second installation part is positioned on one side far away from the stepless speed change mechanism relative to the first installation part, the first installation part and the second installation part are both of hollow structures, the interiors of the first installation part and the second installation part are communicated, the conversion mechanism is movably arranged in the first installation part and the second installation part in the direction vertical to the rotation surface of the conversion mechanism, part of the conversion mechanism penetrates through the second installation part and the handle part and then is positioned outside the handle part, a first matching part 403 is arranged on the inner wall of the second installation part and is detachably matched with the conversion mechanism, the first installation part and/or the second installation part are/is rotatably arranged in the handle part through a first rotating structure 404, a trigger part 405 is fixedly arranged on the first installation part or the second installation part, and the trigger part is positioned outside the handle part. The first mounting part and the second mounting part of the hollow structure are used for the flexible left and right movement of the switching mechanism; the first matching part is used for matching and separating with the conversion mechanism, when the first matching part is matched with the conversion mechanism, the state that the trigger mechanism controls the accelerator cable pulling part to rotate is switched, the rotation of the trigger part can control the accelerator cable pulling part to rotate, when the first matching part is separated from the conversion mechanism, the state that the stepless speed change mechanism controls the accelerator cable pulling part to rotate is switched, and the rotation of the trigger part does not act on the accelerator cable pulling part; the first return structure is used for returning the trigger part to the initial position after the user releases the acting force on the trigger part.

The first rotating structure is a torsion spring or a tension spring. The torsion spring and the tension spring are simple in structure, convenient to install, free of using too much installation space and good in rotation effect.

The conversion mechanism comprises a conversion column 501, the conversion column is movably arranged in the limiting slide way and the limiting hole in the direction vertical to the rotation surface of the conversion mechanism, a second matching part 502 capable of being matched with the first matching part in a separable mode is arranged at one end of the conversion column, a button column 503 shown in figure 11 is arranged at one end of the conversion column, the button column is movably arranged in the second installation part in the direction vertical to the rotation surface of the conversion mechanism, the part of the button column penetrates through the second installation part and the handle part and then is located outside the handle part, a third matching part 504 is arranged at one end of the conversion column, which is far away from the second matching part, a connection groove 206 is arranged on the connection seat, a fourth matching part 207 capable of being matched with the third matching part in a separable mode is arranged on the inner wall of the connection groove, a rebound structure 505 is arranged at one end of the conversion column, and the rebound structure is connected with or contacted with the groove bottom of the connection; the conversion column is movably connected with the accelerator cable part through a guide structure 600. The conversion column is a cube-shaped column, can stably slide left and right in the limiting slide way and the limiting hole, and can stably drive the accelerator cable pull rope part to rotate simultaneously; the second matching part is of a cubic structure, the conversion column can be driven and controlled by the trigger mechanism when the second matching part is matched with the first matching part, and the action of the trigger mechanism can not generate any action on the conversion column when the second matching part is separated from the first matching part; the button column is used for being manually pressed by a user, so that the switching column is controlled to be matched with the trigger mechanism or the stepless speed change mechanism, and the switching is convenient and quick; the third matching part is of a cubic structure, the conversion column can be driven and controlled by the stepless speed change mechanism when the third matching part is matched with the fourth matching part, and the action of the stepless speed change mechanism can not generate any action on the conversion column when the third matching part is separated from the fourth matching part; the connecting groove is used for providing a setting position for the fourth matching part and also providing a movable space for the conversion column when the conversion column is matched with or separated from the stepless speed change mechanism; the springback structure is used for smoothly and quickly popping the conversion column out of the connecting groove when the third matching part and the fourth matching part are required to be separated and matched; the guide structure is used for limiting the left-right sliding of the conversion column, and under the guide effect of the guide structure, the conversion column can only slide left and right within a limited distance range, so that the conversion column can be selectively matched with the stepless speed change mechanism or the trigger mechanism.

The conversion column is provided with a limiting block 506 which corresponds to the connecting seat and the second mounting part respectively. The limiting block is used for preventing the conversion column from sliding excessively when sliding leftwards and rightwards, so that the conversion column only slides leftwards and rightwards in the limited space limited by the connecting seat and the second mounting portion.

The resilience structure is a return spring or a return elastic rod. Particularly, the return spring or the return elastic rod can be flexibly selected according to the requirement, and other elastic objects which can play the same role can be selected.

The guide structure comprises a guide rod 601, one end of the guide rod is rotatably arranged on the limiting part, a guide track 602 is arranged on the side part of the conversion column, and the other end of the guide rod is movably arranged in the guide track. The movable fit of the guide rail and the guide rod is used for limiting the left-right sliding of the conversion column, and under the guide effect of the guide rail, the guide rod circularly moves in the track range limited by the guide rail, so that the conversion column can only slide left and right in the limited distance range, and the conversion column can be selectively matched with the stepless speed change mechanism or the trigger mechanism.

The guide rail comprises a first guide slide 6021, the first guide slide inclines upwards towards the third matching part, one end of the first guide slide close to the third matching part is connected with a second guide slide 6022, the second guide slide inclines upwards towards the direction far away from the third matching part, one end of the second guide slide far away from the third matching part is connected with a third guide slide 6023, the third guide slide is parallel to the direction of the third matching part, one end of the third guide slide far away from the third matching part is connected with a fourth guide slide 6024, the fourth guide slide inclines downwards towards the direction far away from the third matching part, one end of the fourth guide slide far away from the third matching part is connected with a fifth guide slide 6025, the fifth guide slide inclines downwards towards the direction of the third matching part, one end of the fifth guide slide close to the third matching part is connected with a sixth guide slide 6026, the sixth guide slide way inclines downwards in an inclined mode towards the direction far away from the third matching part, one end, far away from the third matching part, of the sixth guide slide way is connected with a seventh guide slide way 6027, the seventh guide slide way is parallel to the direction of the third matching part, and one end, close to the third matching part, of the seventh guide slide way is connected with one end, far away from the third matching part, of the first guide slide way. The guide rails are connected in sequence, and the inclination directions of the guide rails are arranged, so that the conversion column drives the guide rod to move under the pressing action of the button column, the movable matching end of the guide rod can rotate circularly to be matched with the excessive connection part of each guide rail, the trigger mechanism is selected to perform operation control, or the stepless speed change mechanism is selected to perform positioning during operation control, the design is ingenious, and the guide and positioning effects of the guide rod are better.

The first guide slideway, the second guide slideway, the third guide slideway, the fourth guide slideway, the fifth guide slideway, the sixth guide slideway and the seventh guide slideway are connected in sequence to form a closed loop; the joints of the first guide slideway, the second guide slideway, the third guide slideway, the fourth guide slideway, the fifth guide slideway, the sixth guide slideway and the seventh guide slideway are all connected smoothly. The connecting parts of the guide slideways are in smooth connection, so that smooth circular motion of the guide rods can be guaranteed, and the phenomenon of blocking when the button column is pressed does not occur.

The handle portion is rotatably provided with a trigger control mechanism 700 via a second pivot structure 108, a portion of the trigger control mechanism is located outside the handle portion, a portion of the trigger control mechanism is located inside the handle portion, and the portion of the trigger control mechanism located inside the handle portion is detachably engaged with the trigger mechanism. The second rotary structure is used for enabling the trigger control mechanism to quickly return to the original position after the trigger control mechanism is in limited fit with the trigger mechanism; the trigger control mechanism is used for limiting the trigger mechanism, plays a role in safety, and prevents dangerous conditions caused by accidental triggering of the trigger mechanism when the trigger mechanism is not required to operate the instrument.

The second rotary structure is a torsion spring or a tension spring. The torsion spring and the tension spring are simple in structure, convenient to install, free of using too much installation space and good in rotation effect.

The trigger control mechanism comprises a rotating column 701, the rotating column is rotatably arranged inside the handle part, a control arm 702 shown in fig. 10 is fixedly arranged on the rotating column, part of the control arm is positioned outside the handle part, a display part 703 is arranged on the control arm or the rotating column, part of the display part is positioned outside the handle part, a buckling part 704 is arranged on the rotating column or the control arm or the display part, a buckling groove part 705 which can be in separable fit with the buckling part is arranged on the trigger part, and a second rotary structure is connected on the rotating column or the control arm or the display part or the buckling part. The rotating column is used for controlling the rotation of the arm relative to the handle part; the control arm is used for the user to operate the clamping part to clamp the clamping groove part or release the clamping; the display part is used for the user to observe whether the clamping part is in the clamping state or in the unlocking state relative to the clamping groove part; the clamping part is used for being in separable fit with the clamping groove part to lock or unlock the trigger part.

The utility model discloses a theory of operation does:

the rounded corner of the first guide slide 6021 and the second guide slide 6022 is defined as point a, the rounded corner of the fourth guide slide 6024 and the fifth guide slide 6025 is defined as point B, the rounded corner of the fifth guide slide and the sixth guide slide 6026 is defined as point C, and the rounded corner of the sixth guide slide and the seventh guide slide 6027 is defined as point D.

When the button post 503 is pressed manually, the conversion post 501 slides in the limiting slide way 302 and the limiting hole 303, because the limiting part 301 does not slide left and right in the handle part 100, at this time, the guide rod 601 rotates circularly along the track limited by the guide track 602, the limiting end part of the guide rod moves from point A to point B, after the button post is loosened, the limiting end part of the guide rod moves from point B to point C instantaneously under the rebounding force of the rebounding structure 505, at this time, the third matching part 504 is matched with the fourth matching part 207, the conversion post can be driven to rotate clockwise or anticlockwise by rotating the control handle 201, the conversion post simultaneously drives the throttle wire pulling part 304 to rotate clockwise or anticlockwise to adjust the opening degree, the scale groove 205 is arranged on the outer wall surface of the first shell 101, the opening degree of the throttle can be displayed, when the control handle is rotated, the friction block 2041 can be limited at different scales and can generate crisp clicking sound, so that a user can judge the opening degree adjustment of the accelerator according to the sound, if the throttle is electrically controlled, the power of the electric quantity is adjusted, the conversion column is not connected with the trigger mechanism 400 at the moment, and the trigger mechanism cannot control the accelerator cable pulling part;

when the trigger mechanism 400 is required to be switched to control, the button post 503 is pressed again, at this time, the limited end part of the guide rod 601 moves from the point C to the point D, after the button post is loosened, under the rebounding acting force of the rebounding structure 505, the limited end part of the guide rod instantaneously moves from the point D to the point A, at this time, the second matching part 502 is matched with the first matching part 403, the switching post 501 can be driven to rotate clockwise or anticlockwise by rotating the trigger part 405, the switching post simultaneously drives the throttle wire pulling part 304 to rotate clockwise or anticlockwise to adjust the opening degree of the throttle, if the throttle wire pulling part is electrically controlled, the adjusted power is the power of the electric quantity, at this time, the switching post is not connected with the continuously variable transmission mechanism 200 at all, and the continuously variable transmission mechanism cannot control the throttle wire pulling part; when the flameout switch 104 is not turned off, in order to prevent the trigger from being accidentally touched to cause danger, an operator presses the control arm 702, the buckling part 704 is clamped into the clamping groove part 705 on the trigger mechanism after rotating, the trigger is locked, the dangerous condition is prevented, and when the trigger needs to be unlocked, the control arm is pressed again, so that the buckling part is separated from the clamping groove part.

The garden instrument can be a garden tool such as a lawn mower, a brush cutter and a chain saw.

A lawnmower was selected as a sample for explanation:

the handle part 100 of the existing backpack mower has a larger appearance and a single control mechanism, and in the actual operation process, the hand of a user needs to hold the trigger part 405 all the time, so that the user feels fatigue obviously after the working time is prolonged; if the machine is to operate at a certain rotational speed period, the machine is kept in a state for a long time by fingers, and thus the machine is fatigued; the electric control function is realized on the original handle part, and no reserved space is available due to the structural limitation; the handle portion is not covered with the rubber 105, so that the comfort of hand holding is poor.

The handle part 100 of the utility model is provided with the rubber coating 105, the appearance is safe with human engineering design, the comfort level is good, and the trigger part 405 uses a novel duck tongue trigger; in order to solve the problems that when a user operates the mower, the throttle needs to be controlled manually for a long time, fatigue is easy to generate, and potential safety hazards are buried, the stepless speed change mechanism 200 is designed for the labor-saving type handle of the mower, the manual mode and the stepless speed change mode are realized in one key mode, the mower can be set to work at any rotating speed, various needed occasions are met, the working fatigue of the operator is solved, energy conservation and emission reduction are realized, the use cost of the user is reduced, and the operation is simple, convenient, safe and reliable.

As shown in fig. 4: when the button post 503 is pressed, the guiding end of the guiding rod 601 moves from point A to point B, the button post is released, under the resilience action of the resilience structure 505, the guiding end of the guiding rod slides to point C under the guidance of the inclined surface, at this time, the square second matching part 502 at one end of the conversion post 501 is separated from the square first matching part 403, the square third matching part 504 at the other end of the conversion post is inserted into the square fourth matching part 207 on the connecting seat 202, because the control handle 201 of the stepless speed change mechanism 200 is tightly matched with the connecting seat, the stepless speed change function can be realized by controlling the opening degree of the control handle of the stepless speed change mechanism, because the spring limiting mechanism 204 is arranged on the control handle, the opening degree can be controlled under the elasticity, when the positioning opening degree is converted, the emitted sound and slight vibration sense can be generated along with the jump between the scale groove 205 and the friction block 2041, the size of the opening degree can be sensed, visual observation is not needed, when the opening degree of the accelerator stays on any scale mark, manual control is not needed, and the working fatigue caused by long-term manual control is solved.

As shown in fig. 5, when the button post 503 is pressed again, the guiding end of the guiding rod 601 moves from point C to point D, at this time, the button post is released, and under the resilience force of the resilient structure 505, the guiding end of the guiding rod slides to point a instantly under the guidance of the inclined surface, at this time, the square second matching part 502 at one end of the switching post 501 is inserted into the square first matching part 403, the square third matching part 504 at the other end of the switching post is separated from the square fourth matching part 207 on the connecting base 202, and the opening of the trigger is controlled, so that the manual function can be realized.

After redesign, the two modes can be mutually converted, when in manual control, fingers do not leave the trigger part 405 at any working rotating speed, for example, working fatigue can be brought by long-time working, but after the function of stepless speed change, the fingers are converted into the stepless speed change mode through the conversion mechanism 500, so that the working fatigue is solved; not only the original operation function is kept, but also the defects existing in the work are better solved by adding the function; the switching mechanism can control the mutual switching between manual and stepless speed change control, and simultaneously, the electric control function is integrated with the manual and stepless speed change control.

Claims

1. A labor-saving handle is characterized in that: the handle comprises a handle part (100), a stepless speed change mechanism (200) is rotatably arranged on one side of the outer part of the handle part, a throttle cable pulling part (300) is rotatably arranged in the handle part, a conversion mechanism (500) is movably arranged in the handle part along the direction perpendicular to the rotating surface of the stepless speed change mechanism and is movably matched with the throttle cable pulling part, the throttle cable pulling part is connected with the stepless speed change mechanism through the conversion mechanism, and the conversion mechanism is detachably matched with the stepless speed change mechanism through self sliding.

2. A power saving handlebar as defined in claim 1 wherein: the handle part is composed of a first shell (101) and a second shell (102) which are matched with each other, and a delay switch (103) and/or a flameout switch (104) are/is arranged on the first shell and/or the second shell.

3. A power saving handlebar as claimed in claim 2, wherein: the first shell and the second shell are fully or semi-wrapped with rubber coatings (105), and the rubber coatings are provided with concave parts (106) which are suitable for being held by hands.

4. A power saving handlebar as claimed in claim 2, wherein: the stepless speed change mechanism comprises a control handle (201), a mounting hole (107) is formed in the first shell or the second shell, a connecting seat (202) is arranged in the mounting hole in a rotating mode, the connecting seat is fixedly connected with the control handle through a connecting structure (203), and the switching mechanism is in separable fit with the connecting seat through self sliding.

5. The power saving handlebar as claimed in claim 4, wherein: the control handle is provided with a spring limiting mechanism (204), the outer wall surface of the first shell or the second shell is provided with a plurality of scale grooves (205), and the scale grooves are matched with the spring limiting mechanism.

6. The power saving handlebar as claimed in claim 5, wherein: spring stop gear includes clutch blocks (2041), the clutch blocks passes through first elastic component (2042) and connects the lateral part at brake valve lever, the clutch blocks cooperates with the scale groove.

7. The power saving handlebar as claimed in claim 4, wherein: the throttle cable pulling part comprises a limiting part (301), a limiting slide way (302) and a limiting hole (303) are arranged on the limiting part, the switching mechanism is movably arranged in the limiting slide way and the limiting hole in the direction perpendicular to the rotation surface of the switching mechanism, the switching mechanism and the limiting slide way rotate simultaneously in the rotation direction of the switching mechanism, and the limiting part is fixedly provided with a throttle cable pulling part (304).

8. A power saving handlebar as defined in claim 7 wherein: the switching mechanism comprises a switching column (501), the switching column is movably arranged in a limited slide way and a limited hole in the direction perpendicular to the rotating surface of the switching mechanism, a button column (503) is arranged at one end of the switching column, the button column is movably arranged in a handle part in the direction perpendicular to the rotating surface of the switching mechanism, part of the button column penetrates through the handle part and then is positioned outside the handle part, a third matching part (504) is arranged at one end of the switching column, which is far away from the button column, a connecting groove (206) is arranged on the connecting seat, a fourth matching part (207) which is in separable matching with the third matching part is arranged on the inner wall of the connecting groove, a rebound structure (505) is arranged at one end of the switching column, which is positioned at the third matching part, and the rebound structure is connected with or contacted with the groove bottom of the connecting groove; the conversion column is movably connected with the accelerator cable pulling part through a guide structure (600).

9. A power saving handlebar as defined in claim 8 wherein: the guide structure comprises a guide rod (601), one end of the guide rod is rotatably arranged on the limiting part, a guide track (602) is arranged on the side part of the conversion column, and the other end of the guide rod is movably arranged in the guide track.

10. A power saving handlebar as defined in claim 9 wherein: the guide rail comprises a first guide slide way (6021), the first guide slide way is obliquely inclined upwards towards the direction of the third matching part, one end of the first guide slide way close to the third matching part is connected with a second guide slide way (6022), the second guide slide way is obliquely inclined upwards towards the direction far away from the third matching part, one end of the second guide slide way far away from the third matching part is connected with a third guide slide way (6023), the third guide slide way is parallel to the direction of the third matching part, one end of the third guide slide way far away from the third matching part is connected with a fourth guide slide way (6024), the fourth guide slide way is obliquely inclined downwards towards the direction far away from the third matching part, one end of the fourth guide slide way far away from the third matching part is connected with a fifth guide slide way (6025), and the fifth guide slide way is obliquely inclined downwards towards the direction of the third matching part, and one end of the fifth guide slide way, which is close to the third matching part, is connected with a sixth guide slide way (6026), the sixth guide slide way slants downwards in an inclined way towards the direction far away from the third matching part, one end of the sixth guide slide way, which is far away from the third matching part, is connected with a seventh guide slide way (6027), the seventh guide slide way is parallel to the direction of the third matching part, and one end of the seventh guide slide way, which is close to the third matching part, is connected with one end of the first guide slide way, which is far away from the third matching part.