CN217905178U - Hand-push type power tool - Google Patents

Abstract

The utility model provides a hand propelled power tool, include: a main body; a traveling wheel rotatably mounted to the main body and supporting the main body; a working element mounted to the main body; the walking motor is used for driving the walking wheels to rotate; the working motor is used for driving the working element to operate; the armrest frame is connected to the main body, and a handle is arranged at the end part of the armrest frame; a control trigger including a traveling trigger for opening and closing the traveling motor and a working trigger for opening and closing the working motor; the walking trigger with in the work trigger one set up in the front side or the rear side of handle, another set up in the left side or the right side of handle, the walking trigger is to being close to the motion of handle direction starts the walking motor, the work trigger is to being close to the motion of handle direction starts the work motor.

Description

Hand-push type power tool

Technical Field

The utility model belongs to the technical field of the power tool and specifically relates to a lawn mower.

Background

At present, power tools such as lawn mowers have been widely used in life. Lawn mowers generally comprise a main body portion, which generally mounts wheels and a working cutter, and a handle portion, which mounts a walking trigger for controlling the rotation of the wheels and a working trigger for controlling the operation of the working cutter, respectively. The user can selectively start the trigger according to needs while holding the handle to push the mower to walk to control the mower to run. In order to ensure the safety of a user and avoid accidental injury to the user in the using process of the mower, the walking trigger and the working trigger of the mower are often required to be pressed for a long time in the using process, but the existing mower is inconvenient for the user to operate the walking trigger and start the trigger while holding the handle.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a hand propelled power tool, the user of being convenient for one-hand grips the handle and manipulates the control trigger.

In order to achieve one of the above objects of the present invention, an embodiment of the present invention provides a hand-push type power tool, including:

a main body;

a traveling wheel rotatably mounted to the main body and supporting the main body;

a working element mounted to the main body;

the walking motor is used for driving the walking wheels to rotate;

the working motor is used for driving the working element to operate;

the armrest frame is connected to the main body, and a handle is arranged at the end part of the armrest frame;

the control trigger comprises a walking trigger for opening and closing the walking motor and a working trigger for opening and closing the working motor;

the walking trigger with in the work trigger one set up in the front side or the rear side of handle, another set up in the left side or the right side of handle, the walking trigger is to being close to the motion of handle direction starts the walking motor, the work trigger is to being close to the motion of handle direction starts the work motor.

As a further improvement of an embodiment of the present invention, the control trigger disposed at the front side or the rear side of the handle is pivotally disposed about a first axis, and the control trigger disposed at the left side or the right side of the handle is movably disposed along the first axis, which is parallel to the left-right direction.

As a further improvement of an embodiment of the present invention, a distance between a control trigger provided on the left or right side of the handle and the handle is less than 10cm.

As a further improvement of an embodiment of the present invention, the travel trigger and the curved shape of the working trigger are all the same as the curved shape of the handle at the corresponding position.

As an embodiment of the utility model provides a further improvement, still including set up in the control switch box of handrail frame, install control switch in the control switch box, control switch include with walking motor electricity is connected with control the walking switch of the switching of walking motor, and with work motor electricity is connected with control the operating switch of the switching of work motor, set up in the control trigger of handle front side or rear side pass through connecting rod pivotal connection in the control switch box, set up in the control trigger on handle left side or right side pass through slide bar sliding connection in the control switch box, the connecting rod with the slide bar is used for triggering corresponding control switch.

As an embodiment of the utility model provides a further improvement, the handle includes left handle and right handle, the walking trigger includes left walking trigger and right walking trigger, presses the walking trigger with any triggers in the right walking trigger the travel switch, the work trigger includes left side work trigger and right work trigger, presses any triggers in left side work trigger and the right work trigger the work switch, left side handle with right handle left side walking trigger with right walking trigger left side work trigger with right side work trigger homogeneous phase is symmetrical for the coplanar.

As an embodiment of the utility model provides a further improvement, the handle with handrail frame is angle setting, left side walking trigger set up in left side handle right side, right side walking trigger set up in right side handle left side, left side work trigger is located left side handle front side, right side work trigger is located right side handle front side, left side walking trigger to left side handle one side is removed perhaps right side walking trigger to right side handle one side is removed and is triggered travel switch, left side work trigger or right side work trigger is followed first axis orientation handle one side is rotated and is triggered travel switch.

As an embodiment of the utility model provides a further improvement, handrail frame includes left push rod and right push rod, left side handle connect in left side push rod and with left side push rod is the angle setting, right side handle connect in right side push rod and with right side push rod is the angle setting, the connecting rod is located left side push rod with right side push rod top, the curve shape and the corresponding position department of left side work trigger left side handle curve shape is the same, the curve shape and the corresponding position department of right side work trigger right side handle curve shape is the same.

As an embodiment of the utility model provides a further improvement, the slide bar include with left slide bar that left side walking trigger is connected and right slide bar that right side walking trigger is connected, be provided with walking trigger device in the control switch mounting box, left side slide bar remove to the left side perhaps right side slide bar removes the drive walking trigger device triggers left side slide bar, left side slide bar with right side slide bar all is located left side push rod with between the right push rod, left side walking trigger is the same with corresponding position department left handle curve shape, right side walking trigger is the same with corresponding position department right handle curve shape.

As an embodiment of the utility model provides a further improvement, walking trigger device triggers the piece including the swing, the swing triggers the piece and installs in the control switch box along second axis pivot, the second axis perpendicular to first axis, the swing triggers the piece be provided with be used for triggering walking switch trigger protruding, with left connecting portion of left slide bar joint, with right connecting portion of right slide bar joint, left side connecting portion with right connecting portion are located the both sides that the second axis is relative, left side slide bar remove to the left side perhaps right side slide bar removes to the right side, drives the swing triggers the piece and winds the same direction of second axis rotates, so that trigger protruding abutting pressure and triggering walking switch.

As a further improvement of an embodiment of the present invention, a torsion spring is installed on the pivotal shaft of the swing trigger block.

As an embodiment of the utility model provides a further improvement, a left side work trigger with right side work trigger all connect in the connecting rod, hand propelled power tool still includes along the perpendicular to first axis direction slidable mounting in the safety button of control switch box, install the slider in the control switch box, be provided with radial extension's driving lever on the global of connecting rod, safety button is used for the drive the slider move to with the unblock position of driving lever contact, the connecting rod rotates the drive the driving lever is supported and is pressed with the drive the slider removes to supporting and presses and triggers operating switch.

As a further improvement of an embodiment of the utility model, still install the spring in the control switch box, the operating switch with set up side by side about the spring, the slider has the inclined plane, the connecting rod drive the slider slides, the slider compression the spring, the inclined plane extrusion operating switch is in order to trigger operating switch.

As a further improvement of an embodiment of the present invention, the safety button is equal to the distance between the left handle and the right handle.

The utility model provides a hand propelled power tool will be used for controlling the walking trigger of walking wheel operation and the work trigger that is used for controlling the operation of working element and sets up respectively in the adjacent both sides of handle, and all can open corresponding motor, the user one-hand operation of being convenient for to it removes to the handle direction through exerting force control to the handle direction.

Drawings

Fig. 1 is a schematic view of a hand-push type power tool according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of a handle of the hand propelled power tool of FIG. 1;

FIG. 3 is another schematic view of the handle portion shown in FIG. 2;

FIG. 4 is a partial schematic view of the handle portion shown in FIG. 3;

FIG. 5 is a further schematic view of the handle portion shown in FIG. 3;

fig. 6 is a partial cross-sectional view of the handle shown in fig. 5.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a hand-push type power tool 10, and the hand-push type power tool 10 may be a lawn mower. The hand-push type power tool 10 comprises a main body 11, traveling wheels 12 and working elements, wherein the traveling wheels 12 are mounted on the main body 11 and used for supporting the main body 11, and the working elements can be functional accessories such as cutters for completing the work of the power tool 10. The hand-push type power tool 10 further comprises a handrail frame 40, the handrail frame 40 is connected to the main body 11, a handle 50 can be disposed at an end portion of the handrail frame 40, and the handle 50 can be held by a user to push the hand-push type power tool 10 to operate.

The walk behind power tool 10 may also include a motor and a battery pack for supplying power to the motor. The motors may include a travel motor and a work motor, wherein the travel motor may be used to drive the travel wheels 12 to rotate, and the work motor may be used to drive the work elements to operate. The hand-push type power tool 10 further includes a control trigger, which may be used to turn on and off the motor, and may include a travel trigger 30 for turning on and off the travel motor and a work trigger 20 for turning on and off the work motor.

The utility model discloses an in the embodiment, walking trigger 30 and work trigger 20 set up respectively in the adjacent both sides of handle 50, and one in walking trigger 30 and the work trigger 20 can set up in the front side or the rear side of handle 50, and another can set up in the left side or the right side of handle 50, and the user presses walking trigger 30, and drive walking trigger 30 can start the walking motor to being close to the motion of handle 50 direction to the road wheel 12 rotates of driving. The user presses the working trigger 20, and the working trigger 20 is driven to move toward the handle 50 to start the working motor, so as to drive the working element to operate, and perform mowing and other tasks.

In the present embodiment, when the user uses the hand-push type power tool 10, the left-hand side of the user is the left side, the right-hand side of the user is the right side, and the front-rear direction of the handle 50 is perpendicular to the left-right direction, and based on the difference in the configuration of the handle 50, if the handle 50 is disposed in the vertical direction during use, the side of the handle 50 away from the user may be the front side, the side of the handle 50 facing the user may be the rear side, and of course, the side of the handle 50 facing the ground may be the rear side, and the side of the handle 50 away from the ground may be the front side.

One of the walking trigger 30 and the working trigger 20 is arranged at the front side or the rear side of the handle 50, and the other is arranged at the left side or the right side of the handle 50, it can be understood that the walking trigger 30 and the working trigger 20 are arranged at two adjacent sides of the handle 50, in the using process, a user can hold the handle 50 with one hand to apply force to the walking trigger 30 or the working trigger 20, and drive the walking trigger 30 or the working trigger 20 to move towards the handle 50 to control the walking motor or the working motor to be started, the moving directions of the walking trigger 30 and the working trigger 20 are basically vertical, the user can easily apply force to the walking trigger 30 and the working trigger 20 with one hand at the same time, and any control trigger can be released selectively to close the corresponding motor.

Further, in an embodiment of the present invention, the control trigger disposed at the front side or the rear side of the handle 50 is pivotally disposed around a first axis, and the control trigger disposed at the left side or the right side of the handle 50 is movably disposed along the first axis, and the first axis is parallel to the left-right direction.

Referring to fig. 2, in the present embodiment, the extension direction of the control trigger disposed at the front side or the rear side of the handle 50 may be perpendicular to the first axis, the control trigger disposed at the left side or the right side of the handle 50 may be disposed substantially parallel to the handle 50, and a user may hold the handle 50 with one hand and apply force to the control trigger disposed at the left side or the right side of the handle 50 to move the control trigger toward the handle 50 along the first axis. In this manner, a user can easily grip the handle with one hand, using the thumb to control the left or right hand control trigger of the grip 50, and using the palm or other four finger control trigger on the front or back side of the grip 50.

Further, in an embodiment of the present invention, the distance between the handle 50 and the control trigger disposed on the left or right side of the handle 50 is less than 10cm.

In the embodiment, the distance between the middle part of the control trigger arranged at the front side or the rear side of the handle 50 and the handle 50 can be less than 20cm, so that the control trigger can be operated by a single hand of a user, and in the using process, the user can operate the control trigger while holding the handle 50 without pressing the trigger after releasing the handle 50 or assisting to press the trigger by another hand.

Further, referring to fig. 2, in an embodiment of the present invention, the curved shapes of the walking trigger 30 and the working trigger 20 are the same as the curved shape of the handle 50 at the corresponding position, and the top end of the control trigger at the left side or the right side of the handle 50 is lower than the top end of the control trigger at the front side or the rear side of the handle 50, when the user does not need to start the motor corresponding to the control trigger at the left side or the right side of the handle 50, the control trigger at the left side or the right side of the handle 50 will not obstruct the hand of the user, so that the user can flexibly operate the handle 50 and other control triggers.

In the present embodiment, the curved shapes of the travel trigger 30, the work trigger 20, and the handle 50 may be the extension curves of the travel trigger 30, the work trigger 20, and the handle 50, and the extension lengths of the travel trigger 30 and the work trigger 20 may be shorter than the handle 50 corresponding to only partial positions of the handle 50.

The control trigger provided on the left or right side of the handle 50 may be provided in parallel with the handle 50, the control trigger provided on the front or rear side of the handle 50 may have the same curved shape as the handle 50, and the user may press the control trigger to be approximately parallel with the handle 50. So, can promote the pleasing to the eye degree of outward appearance, and the user of being more convenient for operates the control trigger when holding the handle.

In this embodiment, the cross section of the control trigger may be designed according to the curve shape of the handle 50, the cross section of the control trigger may be matched with the cross section of the handle 50 at the corresponding position, and when the control motor is started, the control trigger may be pressed to be attached to the handle 50. If the cross-section of the handle 50 is circular or rounded, the cross-section of the control trigger may be curved to match the shape of the handle 50, so that the control trigger may be engaged with the handle 50 even if the user presses the control trigger for a long time during use, thereby reducing the user's fatigue.

Further, in an embodiment of the present invention, the hand-push type power tool 10 further includes a control switch box 80 disposed on the armrest frame 40, a control switch is installed in the control switch box 80, the control switch can be a micro-control switch, the control switch can be electrically connected to a motor, and the mechanical movement of the control trigger can trigger the control switch to open a corresponding motor. The control switch can include a walking switch 33 electrically connected with the walking motor, the walking switch 33 is used for controlling the on-off of the walking motor, the control switch can also include a working switch 23 electrically connected with the working motor, the working switch 23 is used for controlling the on-off of the working motor, a user can trigger the walking switch 33 to turn on the walking motor by pulling the walking trigger 30 towards the handle 50, and can trigger the working switch 23 to turn on the working motor by pulling the working trigger 20 towards the handle 50.

The control trigger provided on the front or rear side of the handle 50 may be slidably connected to the control switch box 80 through a sliding rod, and the control trigger provided on the left or right side of the handle 50 may be slidably connected to the control switch box 80 through a sliding rod. In this embodiment, one end of the connecting rod 60 is connected to the control trigger, and a part of the connecting rod is disposed in the control switch box 80 for triggering the corresponding control switch, and the corresponding control trigger is driven to rotate to drive the connecting rod 60 to rotate, and the connecting rod 60 rotates to trigger the corresponding control switch. One end of the sliding rod 70 is connected with the control trigger, and part of the sliding rod is arranged in the control switch box 80, and the sliding rod 70 can be driven to move relative to the control switch box 80 and trigger the corresponding control switch by moving the corresponding control trigger along the left-right direction.

In the present embodiment, the length directions of the connecting rod 60 and the sliding rod 70 are both parallel to the left-right direction, and the control trigger may be bent and extended from the end of the connecting rod 60 or the sliding rod along the curved shape of the handle 50 at the corresponding position. The connecting rod 60 and the sliding rod 70 can both be placed above the armrest frame 40 and the curved shape of the control trigger can partially correspond to the shape of the armrest frame 40. In the design process, the shape of the handle 50 can be designed according to human engineering, and then the shape of the control trigger can be designed according to the shape of the handle 50, so that the shape and the structure of the control trigger can meet the requirement of human engineering, and the control trigger is more suitable for the use and operation of a user.

Further, the utility model discloses an embodiment, handle 50 can include left handle 51 and right handle 52, the control trigger can include left control trigger and right control trigger, left side control trigger can include left walking trigger 31 and left work trigger 21, left side control trigger can be installed in left handle 51 department, right side control trigger can include right walking trigger 32 and right work trigger 22, right side control trigger can be installed in right handle 52 department, corresponding motor can all independently be opened to any one in left side control trigger and the right control trigger, release left side control trigger and right control trigger simultaneously then can close corresponding motor.

During use, the user can hold the left handle 51 and the right handle 52 with both hands to push the power tool 10, and the user can selectively use the left hand to operate the left control trigger or the right hand to operate the right control trigger to drive the motor to operate according to the usage habit of the user.

In this embodiment, the travel trigger 30 may include a left travel trigger 31 and a right travel trigger 32, and the work trigger 20 may include a left work trigger 21 and a right work trigger 22, where any one of the left travel trigger 31 and the right travel trigger 32 may independently control the corresponding travel motor to be turned on, and any one of the left work trigger 21 and the right work trigger 22 may independently control the corresponding work motor to be turned on. One of the left travel trigger 31 and the left working trigger 21 may be disposed at a front or rear side of the handle 50 and the other may be disposed at a left or right side of the handle 50, and one of the right travel trigger 32 and the right working trigger 22 may be disposed at a front or rear side of the handle 50 and the other may be disposed at a left or right side of the handle 50.

Here, the left and right grips 51 and 52 may be symmetrically disposed with respect to a plane between the left and right grips 51 and 52, the left and right travel triggers 31 and 32 may be symmetrically disposed with respect to the plane, and the same left and right working triggers 21 and 22 may be symmetrically disposed with respect to the plane.

Thus, the user can use any habit to independently operate the control trigger by hands to control the walking motor and the working motor.

Further, in an embodiment of the present invention, the handle 50 is disposed at an angle to the armrest frame 40, the handle 50 may extend upward from the end of the armrest frame 40, one of the left travel trigger 31 and the left working trigger 21 may be disposed on the right side of the left handle 51, one of the right travel trigger 32 and the right working trigger 22 may be disposed on the left side of the right handle 52, the other of the left travel trigger 31 and the left working trigger 21 may be disposed on the front side of the left handle 51, and the other of the right travel trigger 32 and the right working trigger 22 may be disposed on the front side of the right handle 52.

In the present embodiment, the handle frame 40 may include a left push rod 41 and a right push rod 42 connected to both sides of the body, a left handle 51 may be connected to the left push rod 41 and extend upward from an end of the left push rod 41, and a right handle 52 may be connected to the right push rod 42 and extend upward from an end of the right push rod 42.

The left handle 51 may be disposed at an angle with the left push rod 41, the right handle 52 may be disposed at an angle with the right push rod 42, an included angle between the left push rod 41 and the right push rod 42 and a horizontal direction may be an acute angle, and an included angle formed by the left handle 51 and the left push rod 41 is equal to an included angle formed by the right handle 52 and the right push rod 42, which may be greater than or equal to 90 °. In this way, the left handle 51 and the right handle 52 may form a certain angle with the vertical direction, and the left handle 51 and the right handle 52 respectively extend from the end portions of the left push rod 41 and the right push rod 42 to the long direction and incline to the main body side. The hand-push type power tool 10 may be positioned at the front side of the user and inclined with respect to the front side of the user when the user uses the hand-push type power tool, thereby making it easier for the user to grip the handle 50 and apply the pushing force.

When a user holds the handle 50, the left thumb is located on the right side of the left handle 51, the right thumb is located on the left side of the right handle 52, and the rest four fingers are bent from the front side of the handle 50 to the right side or the left side of the handle 50, so that the left control trigger is arranged on the front side and the right side of the left handle 51, the right control trigger is arranged on the front side and the left side of the right handle 52, the user can easily and flexibly control the control trigger on the left side or the right side of the handle 50 through the thumb while holding the handle 50, and meanwhile, the control trigger on the front side of the handle 50 is controlled through the rest four fingers.

The utility model discloses an in the embodiment, left side work trigger 21 and right side work trigger 22 can set up respectively in the front side of left handle 51 and right handle 52, and left side walking trigger 31 can set up in the right side of left handle 51, and right side walking trigger 32 can set up in the left side of right handle 52, and the walking motor can all be opened to left side walking trigger 31 or to right side removal right side walking trigger 32.

During operation of the power tool 10, it is necessary to keep the working motor on by pressing the working trigger 20 for a long time, so that the working elements are kept running continuously to perform the corresponding work. It will be appreciated that the use of the work trigger 20 is relatively long and the work trigger 20 drives the working element to operate, so that the user's flexibility in operating the work trigger 20 needs to be ensured in order to avoid accidental injury to the user by the working element. Therefore, the operation trigger 20 is provided on the front side of the grip 50, so that the user can operate the trigger more easily, and the user's fatigue can be reduced and the control flexibility can be improved by applying force with the palm and the four fingers.

Referring to fig. 3, in the present embodiment, the left and right working triggers 21 and 22 may be connected to the connection rod 60, the connection rod 60 may pass through the control switch box 80, both ends of the connection rod are connected to the left and right working triggers 21 and 22, respectively, and rotating any one of the left and right working triggers 21 and 22 may drive the connection rod 60 to rotate to trigger the working switch 23. The connecting rod 60 can be located above the left push rod 41 and the right push rod 42, the connecting point of the left working trigger 21 and the connecting rod 60 can be located above the left push rod 41, the connecting point of the right working trigger 22 and the connecting rod 60 can be located above the right push rod 42, the shape of the left working trigger 21 can be the same as that of the left push rod 41 and the left handle 51 at the corresponding position, and the shape of the right working trigger 22 can be the same as that of the right push rod 42 and the right handle 52 at the corresponding position, so that the bottom ends of the left working trigger 21 and the right working trigger 22 are completely located outside the left handle 51 and the right handle 52, the operation is more convenient to hold in the using process, when the motors are turned on by operating the left working trigger 21 and the right working trigger 22, the fit degree between the working trigger 20 and the handle 50 is higher, and the comfort is strong.

The sliding rod 70 may include a left sliding rod 71 connected to the left travel trigger 31 and a right sliding rod 72 connected to the right travel trigger 32, the extending directions of the left sliding rod 71 and the right sliding rod 72 may be parallel to the first axial direction, and a travel trigger device for triggering the travel switch 33 may be further provided in the control switch box 80. The user operates the left travel trigger 31 to drive the left sliding rod 71 to move to the left, the left sliding rod 71 can drive the travel trigger device to trigger the travel switch 33, or the user can also operate the right travel trigger 32 to drive the right sliding rod 72 to move to the right, and the right sliding rod 72 can also drive the travel trigger device to trigger the travel switch 33.

The left travel trigger 31 and the left slide bar 71 may be provided independently of the right travel trigger 32 and the right slide bar 72. Both the left and right slide bars 71 and 72 may be located between the left and right push rods 41 and 42, a connection point of the left travel trigger 31 and the left slide bar 71 may be located at a right side of the left push rod 41, a connection point of the right travel trigger 32 and the right slide bar 72 may be located at a left side of the right push rod 42, the left travel trigger 31 may extend from an end of the left slide bar 71 along a curved shape of the left push rod 41 and the left grip 51 at a corresponding position, and the right travel trigger 32 may extend from an end of the right slide bar 72 along a curved shape of the right push rod 42 and the right grip 52 at a corresponding position. In a state where the travel motor is turned off, the distance between the left travel trigger 31 and the left grip 51 is equal to the distance between the right travel trigger 32 and the right grip 52, and the user can manipulate the left travel trigger 31 or the right travel trigger 32 with hands using any one of the habits.

Further, referring to fig. 3 to 6, in an embodiment of the present invention, the walking trigger device includes a swing trigger block 73, the swing trigger block 73 can be pivotally installed in the control switch box 80 along a second axis, and the second axis is perpendicular to the first axis. The swing trigger block 73 may be disposed at one side of the travel switch 33, and the swing trigger block 73 may be disposed with a trigger protrusion 74, where the trigger protrusion 74 is used to press against and trigger the travel switch 33. The swing trigger block 73 is further provided with a left connecting portion 75 connected with the left sliding rod 71 and a right connecting portion 76 connected with the right sliding rod 72, the left connecting portion 75 and the right connecting portion 76 are located on two opposite sides of the second axis, the left connecting portion 75 and the right connecting portion 76 can be symmetrically arranged relative to the second axis, and the left sliding rod 71 can move towards the left side or the right sliding rod 72 can move towards the right side, so that the swing trigger block 73 can be driven to rotate around the second axis in the same direction to enable the trigger bulge 74 to press and trigger the travel switch 33.

In the present embodiment, the left slide bar 71 and the right slide bar 72 are provided independently of each other, and the left travel trigger 31 or the right travel trigger 32 may be used alone to trigger the travel switch 33, or both hands may be simultaneously operated to press the left travel trigger 31 and the right travel trigger 32 to trigger travel development, and the left travel trigger 31 and the right travel trigger 32 may be operated by both hands simultaneously to reduce the force that needs to be applied by one hand.

The pivot axle of swing trigger block 73 can be equipped with the torsional spring, use left side walking trigger 31 or right side walking trigger 32 to drive the swing trigger block 73 rotatory time, the torsional spring energy storage, when user's both hands release left side walking trigger 31 and right side walking trigger 32 simultaneously, under the elastic force effect of torsional spring, swing trigger block 73 autogiration resets, it resets to drive left side walking trigger 31 and right side walking trigger 32 simultaneously, control walking motor closes, need not the user and controls, and the use is convenient, and can reduce the potential safety hazard.

In the present embodiment, the control switch box 80 may include an upper housing 81 and a lower housing 82, the travel switch 33 may be fixedly mounted on the upper housing 81, the pivot shaft 731 of the swing trigger block 73 may be connected to the lower housing 82, the swing trigger block 73 may be located at a lower side of the travel switch 33, the trigger protrusion 74 may be located at a surface of the swing trigger block 73 facing a side of the travel development, and the left and right connection portions 75 and 76 may be disposed at a surface of the swing trigger block 73 facing away from the side of the travel switch 33.

Left connecting portion 75 can be for the convex left side of the surface of self-swing trigger block 73 to connect protrudingly, right connecting portion 76 can be for the convex right side of the surface of swing trigger block 73 to connect protrudingly, the one end of left connecting rod 60 can be connected with left work trigger 21, the other end can be provided with left block arch 77, left block arch 77 can be located left and connect bellied right side, so, to left side pulling left slide bar, left block arch 77 to press left connecting arch to drive swing trigger block 73 anticlockwise rotation. One end of the right connecting rod 60 can be connected with the right working trigger 22, the other end can be provided with a right blocking bulge 78, the right blocking bulge 78 is arranged on the left side of the right connecting bulge, so that the right sliding rod 72 is pulled to the right side, and the right blocking bulge 78 abuts against the right connecting bulge to drive the swing trigger block 73 to rotate anticlockwise.

The trigger protrusion 74 includes a slope having a trajectory in an arc shape centered on the pivot axis of the swing trigger block 73. When the left sliding rod 71 or the right sliding rod 72 drives the swing trigger block 73 to rotate, the inclined surface gradually approaches and presses the travel switch 33 to trigger the travel switch 33.

Further, in an embodiment of the present invention, the hand-push type power tool 10 further includes a safety button 24 mounted on the control switch box 80. The control switch box 80 is also provided with a slide block 62, and the slide block 62 can press and trigger the working switch 23. The safety button 24 is slidably mounted on the control switch box 80 along a direction perpendicular to the first axis, one end of the safety button 24 is disposed outside the control switch box 80 for being pressed by a user, and the other end of the safety button extends into the control switch box 80 for driving the sliding block 62 to move. A radially extending shift lever 61 may be provided on the circumferential surface of the connecting rod 60.

When the safety button 24 is pressed to move to the unlocking position contacting with the shift lever 61, the left working trigger 21 or the right working trigger 22 is pressed to drive the connecting rod 60 to rotate, so that the shift lever 61 is pressed against the sliding block 62, and the sliding block 62 is driven to move to be pressed against and trigger the working switch 23.

In this embodiment, before the safety switch driving slider 62 moves to the unlocking position, even if the connecting rod 60 rotates, the shift lever 61 does not contact the slider 62, and therefore the slider 62 is not driven to move, and after the safety switch driving slider 62 moves to the unlocking position, the shift lever 61 contacts the slider 62, and when the connecting rod 60 is rotated, the shift lever 61 can abut against the slider 62 and drive the slider to move to the triggering position for triggering the working switch 23.

Therefore, in the using process, a user needs to press the safety button 24 first, and the left working trigger 21 or the right working trigger 22 is pressed to start the working motor to drive the working element to operate, so that the phenomenon that the user mistakenly presses the left working trigger 21 or the right working trigger 22 to cause the working element to operate and injure the user mistakenly can be avoided.

In the first axial direction, the left and right sides of the sliding block 62 are provided with cylinders 63, and when the sliding block 62 is between the unlocking position and the triggering position for triggering the working switch 23, the connecting rod 60 is rotated, and the shift lever 61 can be pressed against the cylinders 63 to drive the sliding block 62 to slide.

In the present embodiment, the spring 64 is further mounted in the control switch case 80, and the safety button 24, the slider 62, and the spring 64 are arranged in this order in the sliding direction of the slider. The sliding block 62 and the spring 64 can be installed in the lower casing 82, an installation groove 83 can be formed in the lower casing 82, the sliding block 62, the spring 64 and the operating switch 23 can be installed in the installation groove 83, the sliding block 62 can slide in the installation groove 83, and two ends of the spring 64 can respectively abut against one wall of the sliding block 62 and one wall of the installation groove 83. When pressing safety button 24 or rotating connecting rod 60 and driving slider 62 and slide, slider 62 compression spring 64, when user's both hands release left work trigger 21 and right work trigger 22 simultaneously, under the elastic force effect of spring 64, slider 62 moves to initial position, drives left work trigger 21 and right work trigger 22 simultaneously and moves to initial position, and the work motor disconnection.

The tip of slider 62 can be provided with the spliced pole, the spliced pole can be located to the one end of spring 64 cover, the bottom surface of mounting groove 83 can slope the setting, be close to safety button 24 one end and can be higher than and be close to spring 64 one end, the cylinder 63 that acts on mutually with driving lever 61 can set up in slider 62 and be close to safety button 24 one side, when pressing safety button 24, slider 62 can be under the effect of spring 64, it lifts to the trigger position to be provided with cylinder 63 one end for driving lever 61 and cylinder 63 contact. The operating switch 23 may be juxtaposed to the spring 64 in the left-right direction, and the slider 62 may have a slope that presses the operating switch 23 to trigger the operating switch 23 when the slider 62 moves.

In the present embodiment, the safety button 24 may be disposed between the left and right grips 51 and 52, and the distances from the safety button 24 to the left and right grips 51 and 52 may be equal, so that the user can conveniently press the safety button 24 using either one hand.

In this embodiment, the pivot axis of the working trigger 20, the pivot axis of the swing trigger block 73, and the moving direction of the slider 62 may be perpendicular to each other, the sliding rod may be close to the safety button 24 side with respect to the connecting rod 60, the safety button 24 is provided with a long through hole, and the pivot axis 731 of the swing trigger block 73 may be pivotally connected to the lower case 82 through the long through hole of the safety button 24, so that the components in the control switch box 80 do not interfere with each other.

The utility model provides a hand propelled power tool 10, the user can pass through arbitrary one and use the hand manipulation work trigger 20 and walk trigger 30, accords with ergonomic design.

It should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The above detailed description of a series of embodiments is only for the purpose of illustration, and is not intended to limit the scope of the invention, which is intended to include all equivalent embodiments or modifications that do not depart from the spirit of the invention.

Claims (14)

1. A hand propelled power tool comprising:

a main body;

a traveling wheel rotatably mounted to the main body and supporting the main body;

a working element mounted to the main body;

the walking motor is used for driving the walking wheels to rotate;

the working motor is used for driving the working element to operate;

the armrest frame is connected to the main body, and a handle is arranged at the end part of the armrest frame;

a control trigger including a traveling trigger for opening and closing the traveling motor and a working trigger for opening and closing the working motor;

the electric bicycle is characterized in that one of the walking trigger and the working trigger is arranged on the front side or the rear side of the handle, the other of the walking trigger and the working trigger is arranged on the left side or the right side of the handle, the walking trigger moves and starts in the direction close to the handle, and the working trigger moves and starts in the direction close to the handle.

2. The hand propelled power tool of claim 1, wherein the control trigger provided on the front or rear side of the handle is pivotally provided about a first axis, and the control trigger provided on the left or right side of the handle is movably provided along the first axis, the first axis being parallel to the left-right direction.

3. The hand propelled power tool of claim 2, wherein a distance between the control trigger disposed on the left or right side of the handle and the handle is less than 10cm.

4. The hand propelled power tool of claim 3, wherein the curved shapes of the walk trigger and the work trigger are each the same as the curved shape of the handle at the corresponding position.

5. The hand-push type power tool according to claim 4, further comprising a control switch box provided in the handle frame, wherein a control switch is installed in the control switch box, the control switch comprises a travel switch electrically connected to the travel motor to control the opening and closing of the travel motor, and a work switch electrically connected to the work motor to control the opening and closing of the work motor, the control trigger provided on the front side or the rear side of the handle is pivotally connected to the control switch box through a connecting rod, the control trigger provided on the left side or the right side of the handle is slidably connected to the control switch box through a sliding rod, and the connecting rod and the sliding rod are used for triggering the corresponding control switch.

6. The hand propelled power tool of claim 5, wherein the handle comprises a left handle and a right handle, the travel trigger comprises a left travel trigger and a right travel trigger, pressing either of the travel trigger and the right travel trigger triggers the travel switch, the work trigger comprises a left work trigger and a right work trigger, pressing either of the left work trigger and the right work trigger triggers the work switch, the left handle and the right handle, the left travel trigger and the right travel trigger, the left work trigger and the right work trigger are all symmetrical with respect to a same plane.

7. The hand-push type power tool according to claim 6, wherein the handle and the armrest frame are disposed at an angle, the left walking trigger is disposed on the right side of the left handle, the right walking trigger is disposed on the left side of the right handle, the left working trigger is disposed on the front side of the left handle, the right working trigger is disposed on the front side of the right handle, the left walking trigger moves towards one side of the left handle or the right walking trigger moves towards one side of the right handle to trigger the walking switch, and the left working trigger or the right working trigger rotates towards one side of the handle along the first axis to trigger the working switch.

8. The hand propelled power tool of claim 7, wherein the armrest frame includes a left push rod and a right push rod, the left handle is connected to the left push rod and is angularly disposed to the left push rod, the right handle is connected to the right push rod and is angularly disposed to the right push rod, the connecting rod is located above the left push rod and the right push rod, the left working trigger has a curved shape that is the same as the curved shape of the left handle at a corresponding position, and the right working trigger has a curved shape that is the same as the curved shape of the right handle at a corresponding position.

9. The hand-push type power tool according to claim 8, wherein the sliding rod comprises a left sliding rod connected with the left walking trigger and a right sliding rod connected with the right walking trigger, a walking trigger device is arranged in the control switch mounting box, the left sliding rod moves to the left side or the right sliding rod moves to the right side to drive the walking trigger device to trigger the walking switch, the left sliding rod and the right sliding rod are both positioned between the left push rod and the right push rod, the shape of the left handle curve of the left walking trigger at the corresponding position is the same as that of the right handle curve of the right walking trigger at the corresponding position.

10. The power tool of claim 9, wherein the walking trigger device comprises a swing trigger block, the swing trigger block is pivotally mounted in the control switch box along a second axis, the second axis is perpendicular to the first axis, the swing trigger block is provided with a trigger protrusion for triggering the walking switch, a left connecting portion engaged with the left sliding rod, and a right connecting portion engaged with the right sliding rod, the left connecting portion and the right connecting portion are located on two opposite sides of the second axis, the left sliding rod moves to the left side or the right sliding rod moves to the right side, and the swing trigger block is driven to rotate around the second axis in the same direction, so that the trigger protrusion presses against and triggers the walking switch.

11. The hand propelled power tool of claim 10, wherein a torsion spring is mounted on the pivot shaft of the swing trigger block.

12. The hand-push type power tool according to claim 8, wherein the left working trigger and the right working trigger are both connected to the connecting rod, the hand-push type power tool further comprises a safety button slidably mounted in the control switch box along a direction perpendicular to the first axis, a slider is mounted in the control switch box, a radially extending shift lever is disposed on a circumferential surface of the connecting rod, the safety button is used for driving the slider to move to an unlocking position where the shift lever contacts, and the connecting rod rotates to drive the shift lever to press so as to drive the slider to move to the pressing position and trigger the working switch.

13. The hand-push type power tool according to claim 12, wherein a spring is further installed in the control switch case, the working switch and the spring are arranged side by side in the left-right direction, the slider has an inclined surface, the connecting rod drives the slider to slide, the slider compresses the spring, and the inclined surface presses the working switch to trigger the working switch.

14. The hand propelled power tool of claim 12, wherein said safety button is equidistant from said left handle and said right handle.

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