CN209002355U - Hand pushed wheel type vehicle - Google Patents
Hand pushed wheel type vehicle Download PDFInfo
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- CN209002355U CN209002355U CN201821055751.3U CN201821055751U CN209002355U CN 209002355 U CN209002355 U CN 209002355U CN 201821055751 U CN201821055751 U CN 201821055751U CN 209002355 U CN209002355 U CN 209002355U
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Abstract
The utility model relates to a kind of hand pushed wheel type vehicles, comprising: walking mechanism, the walking mechanism include front wheels and rear wheels；Self-driven mechanism, the self-driven mechanism is for driving the walking mechanism；First self-powered control device, whether the first self-powered control device is high from the ground according to the front-wheel, control the self-driven mechanism so that the self-driven mechanism the front-wheel height from the ground when, reduce the speed of travel of the walking mechanism or stop driving the walking mechanism.By the first self-powered control device the front-wheel height from the ground when, the revolving speed of the self-driven mechanism is controlled, to reduce the speed of travel of rear-wheel or stop driving the rear-wheel.According to the hand pushed wheel type vehicle of the utility model embodiment, do not need to operate self-powered switch repeatedly when can reduce turning radius, and turning, operation sequence is simple, reduces maloperation.
Description
Technical field
The utility model relates to technical field of vehicle more particularly to a kind of hand pushed wheel type vehicles.
Background technique
During hand pushed wheel type vehicle carries out pivot stud, need user that front-wheel sticks up, then artificial control
Hand pushed wheel type vehicle carries out pivot stud；If front-wheel not sticked up, turning radius can be very big, cannot achieve pivot stud.
By taking the hand mower of self-driving type as an example, during carrying out pivot stud, also need to stick up on front-wheel,
And it also requires closing self-powered switch carries out pivot stud, self-powered switch is opened after the completion of turning to again and continues self-propelled.
If not closing self-powered switch, hand mower turning radius equally can be very big, and is not easy control.Therefore, Yong Hu
It is if desired relatively more the case where pivot stud during hand mower, then it needs user to operate self-powered switch repeatedly, leads
Cause operation sequence complicated and easy to operate by mistake.
Utility model content
In view of this, can reduce turning radius the utility model proposes a kind of grass trimmer, do not need to operate repeatedly certainly
Switch is driven, operation sequence is simple, reduces maloperation.
One side according to the present utility model provides a kind of hand pushed wheel type vehicle, comprising:
Walking mechanism, the walking mechanism include front wheels and rear wheels；
Self-driven mechanism, the self-driven mechanism is for driving the walking mechanism；
First self-powered control device, whether the first self-powered control device is high from the ground according to the front-wheel, to control
The self-driven mechanism so that the self-driven mechanism the front-wheel height from the ground when, reduce the walking of the walking mechanism
Speed stops driving the walking mechanism.
In one possible implementation, the first self-powered control device includes self-powered switch, when the front-wheel is high
When from the ground, the self-powered switch reduces the revolving speed of the self-driven mechanism or disconnects the self-driven mechanism and the walking
The connection of mechanism, the self-driven mechanism reduce the speed of travel of the walking mechanism or stop driving the walking mechanism.
In one possible implementation, the first self-powered control device includes identification sensor；The identification passes
Sensor includes first sensor and second sensor, and the first sensor is used to detect the angle on the front-wheel and ground, institute
Second sensor is stated for detecting the pressure on the front-wheel and ground；
The first self-powered control device determines whether the front-wheel is high from the ground according to the angle and pressure.
In one possible implementation, self-powered switch is mechanical switch, the front-wheel height from the ground when,
The mechanical switch at least breaking part connects.
In one possible implementation, the hand pushed wheel type vehicle further include: bottom case and front axle, the bottom case packet
Include the mounting hole for supporting the front axle；
The front-wheel is mounted on the side of the bottom case by the front axle, and the front axle includes described in rotation connection
The shaft body of front-wheel, the shaft body can be movable in the mounting hole；
The front-wheel height from the ground when, the shaft body is moved to the downside of the mounting hole, the mechanical switch
At least breaking part connects,
When the front-wheel contacts ground, the shaft body is moved to the upside of the mounting hole, the mechanical switch
Closure.
In one possible implementation, the mechanical switch includes contact, and the bottom case further includes described in receiving
The recess portion of contact,
The front axle further includes for triggering the switch triggering portion of the contact and connecting the shaft body and described open
The interconnecting piece of trigger unit is closed,
The front-wheel height from the ground when, the shaft body is moved to the downside of the mounting hole, the switch triggering portion
The connection with the contact is disconnected, the self-driven mechanism stops driving the walking mechanism；
When the front-wheel contacts ground, the shaft body is moved to the upside of the mounting hole, the switch triggering portion
It is connect with the contact, the self-driven mechanism starts to drive the walking mechanism.
In one possible implementation, the contact is located at the top in the recess portion.
In one possible implementation, the contact is slide rheostat,
The front-wheel height from the ground when, the shaft body is moved to the downside of the mounting hole, the switch triggering portion
Mobile, slide rheostat resistance value becomes larger, and the self-driven mechanism reduces the speed of travel of the walking mechanism；
When the front-wheel contacts ground, the shaft body is moved to the upside of the mounting hole, the switch triggering portion
Mobile, slide rheostat resistance value becomes smaller, and the self-driven mechanism restores the speed of travel of the walking mechanism.
In one possible implementation, prolong in the generally vertical direction of the slide rheostat within the recess
It stretches.
In one possible implementation, the interconnecting piece and the switch triggering portion are located at described with the front-wheel
Bottom case it is not ipsilateral.
In one possible implementation, the mechanical switch includes contact；
The hand pushed wheel type vehicle further include: bottom case, the bottom case include the mounting hole for supporting the front axle, the touching
Point is located at the top in the mounting hole；
The front axle includes the shaft body for being rotatablely connected the front-wheel, and the shaft body can live in the mounting hole
It is dynamic, switch triggering portion is provided on the upside of the shaft body；
The front-wheel height from the ground when, the shaft body is moved to the downside of the mounting hole, the switch triggering portion
The connection with the contact is disconnected, the self-driven mechanism stops driving the walking mechanism；
When the front-wheel contacts ground, the shaft body is moved to the upside of the mounting hole, the switch triggering portion
It is connect with the contact, the self-driven mechanism starts to drive the walking mechanism.
In one possible implementation, the contact is slide rheostat, and the slide rheostat is from the installation
Top in hole extends to bottom；
When the shaft body is moved to the downside of the mounting hole, slide rheostat resistance value becomes larger, the self-driven mechanism
Reduce the speed of travel of the walking mechanism；
When the shaft body is moved to the upside of the mounting hole, slide rheostat resistance value becomes smaller, the self-driven mechanism
Restore the speed of travel of the walking mechanism.
In one possible implementation, the first self-powered control device further includes control unit；
The angle and pressure detected in the control unit according to the identification sensor judges that the front-wheel height is liftoff
When face, the control unit sends first control signal to the self-driven mechanism, and the self-driven mechanism is according to described first
Control signal reduces the speed of travel of the walking mechanism or stops driving the walking mechanism；
The angle and pressure detected in the control unit according to the identification sensor judges the front-wheel contiguously
When face, the control unit sends second control signal to the self-driven mechanism, and the self-driven mechanism is according to described second
Control signal restores the speed of travel of the walking mechanism.
In one possible implementation, the hand pushed wheel type vehicle further include: bottom case, the front-wheel pass through front axle
It is mounted on the side of the bottom case, the front-drive connects the front axle；
The first sensor is angular transducer, and the first sensor is mounted on the bottom case or front axle；
The second sensor is pressure sensor, and the second sensor is installed at one in following position or more
Place: on the front-wheel, between the front axle and the front-wheel or between the bottom case and the front axle.
In one possible implementation, the pressure sensor is capacitance pressure transducer,.
In one possible implementation, the angular transducer sends the angle detected to the control unit,
The pressure sensor sends the pressure detected to the control unit.
In one possible implementation, determine that the front-wheel is raised according to the angle in the control unit, and
When judging that the pressure is less than preset threshold, the control unit judges the front-wheel height from the ground.
In one possible implementation, determine that the front-wheel is raised according to the angle in the control unit, and
When judging that the pressure is greater than preset threshold, the control unit judges front-wheel contact ground.
In one possible implementation, there are corresponding relationships with the angle signal for the preset threshold.
In one possible implementation, the hand pushed wheel type vehicle further include:
Operating stick, the operating stick include grip part, are equipped with the second self-powered control device in the grip part, and described
When two self-powered control devices are opened, the first self-powered control device is worked normally.
In one possible implementation, the self-driven mechanism is at least used to drive the rear-wheel.
By the first self-powered control device the front-wheel height from the ground when, control the revolving speed of the self-driven mechanism, from
And it reduces the speed of travel of walking mechanism or stops driving the walking mechanism.According to the hand-pushing wheel of the utility model embodiment
Formula vehicle can reduce turning radius, and while turning does not need to operate self-powered switch repeatedly, and operation sequence is simple, reduces and misses
Operation.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the other feature and aspect of the utility model will
It becomes apparent.
Detailed description of the invention
Comprising in the description and constitute the attached drawing of part of specification and specification to together illustrate this practical new
Exemplary embodiment, feature and the aspect of type, and for explaining the principles of the present invention.
Fig. 1 shows the block diagram of the hand pushed wheel type vehicle according to an embodiment of the present invention.
Fig. 2 shows the structural schematic diagrams according to the hand pushed wheel type vehicle of an embodiment of the present invention.
Fig. 3 shows the partial enlarged view of M in Fig. 2.
Fig. 4 shows the schematic diagram of the mounting hole according to an embodiment of the present invention.
Fig. 5 shows the structural schematic diagram of the hand pushed wheel type vehicle according to an embodiment of the present invention.
Fig. 6 shows the partial enlarged view of M in Fig. 5.
Fig. 7 a shows the electrical block diagram according to an embodiment of the present invention.
Fig. 7 b shows the electrical block diagram according to an embodiment of the present invention.
Fig. 8 a shows the contact according to an embodiment of the present invention and the structural schematic diagram of mounting hole.
Fig. 8 b shows the structural schematic diagram of slide rheostat and mounting hole according to an embodiment of the present invention.
Fig. 9 shows the electricity of the first self-powered control device and the second self-powered control device according to an embodiment of the present invention
Road connection relationship diagram.
Description of symbols
1 grip part, 2 second self-powered control devices, 3 operating sticks, 4 rear-wheels, 5 bottom cases, 51 recess portions, 6 front-wheels, 7 front axles, 71
Shaft body, 72 interconnecting pieces, 73 switch triggering portions, 8 contacts, 9 slide rheostats, 10 self-driven mechanisms.
Specific embodiment
The various exemplary embodiments, feature and aspect of the utility model are described in detail below with reference to attached drawing.In attached drawing
Identical appended drawing reference indicates element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings,
It is unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the utility model, given in specific embodiment below numerous specific
Details.It will be appreciated by those skilled in the art that without certain details, the utility model equally be can be implemented.In some realities
In example, method well known to those skilled in the art, means, element and circuit are not described in detail, in order to highlight this reality
With novel purport.
Fig. 1 shows the block diagram of the hand pushed wheel type vehicle according to an embodiment of the present invention.As shown in Figure 1, the hand-pushing wheel
Formula vehicle may include: walking mechanism, self-driven mechanism and the first self-powered control device.
Wherein, walking mechanism may include front wheels and rear wheels；Self-driven mechanism is used to drive walking mechanism, such as can use
In driving rear-wheel or front-wheel, or for driving front wheels and rear wheels, self-driven mechanism can be motor, gear etc..
Whether the first self-powered control device can high from the ground according to the front-wheel, to control the self-driven mechanism, with
Make the self-driven mechanism the front-wheel height from the ground when, reduce the walking mechanism the speed of travel or stop driving described in
Walking mechanism.
Wherein, front-wheel height can refer to from the ground: before steering, user, which sticks up front-wheel, causes front-wheel height liftoff
Face, alternatively, front-wheel height caused by depression in the land surface is from the ground, etc. during advance for hand pushed wheel type vehicle.
By the self-driven mechanism for for driving rear-wheel, the front-wheel height from the ground when (for example, in steering
Before, user sticks up front-wheel), the first self-powered control device can control the revolving speed of the self-driven mechanism, thus after reducing
The speed of travel of wheel stops driving the rear-wheel, at this point, user can push hand pushed wheel type vehicle to turn to.
If user pushes hand pushed wheel type vehicle after reducing the speed of travel of rear-wheel (for example, only reduce a part, do not drop to 0)
When being turned to, control can be convenient, and can reduce turning radius；If reducing the speed of travel of rear-wheel to after 0, user is pushed away
When dynamic hand pushed wheel type vehicle is turned to, pivot stud may be implemented；If user pushes hand pushed wheel type vehicle after stopping driving rear-wheel
When being turned to, pivot stud may be implemented.
Above-mentioned hand pushed wheel type vehicle according to the present utility model can reduce turning radius, and the first self-driven mechanism energy
It is enough the front-wheel height from the ground when, control self-driven mechanism reduces the speed of travel of the walking mechanism or stops described in driving
Walking mechanism, when turning, do not need to operate self-powered switch repeatedly, and operation sequence is simple, reduces maloperation.
First self-powered control device: example 1
In one possible implementation, the first self-powered control device may include self-powered switch, before described
Wheel it is high from the ground when, the self-powered switch reduce the revolving speed of the self-driven mechanism or disconnect the self-driven mechanism with it is described
The connection of walking mechanism, the self-driven mechanism reduce the speed of travel of the walking mechanism or stop driving the vehicle with walking machine
Structure.
Wherein, self-powered switch can be mechanical switch, the front-wheel height from the ground when, the mechanical switch can be down to
Few breaking part connection；When the front-wheel contacts ground, the mechanical switch closure, the self-driven mechanism starts to drive
The walking mechanism.
Example 1.1
Fig. 2 shows the structural schematic diagrams according to the hand pushed wheel type vehicle of an embodiment of the present invention.Fig. 3 shows M in Fig. 2
Partial enlarged view.
As shown in Figures 2 and 3, hand pushed wheel type vehicle may include: operating stick 3, and operating stick 3 may include grip part 1.Institute
Stating walking mechanism may include front-wheel 6 and rear-wheel 4, and self-driven mechanism is not shown in Fig. 2.Hand pushed wheel type vehicle can also wrap
Include: bottom case 5 and front axle 7, the bottom case 5 include the mounting hole (not shown) for supporting the front axle 7；The front-wheel 6 passes through
The front axle 7 is mounted on the side of the bottom case 5, and the front axle 7 includes the shaft body 71 for being rotatablely connected the front-wheel, institute
Stating shaft body 71 can be movable in the mounting hole.
As shown in Fig. 2, the second self-powered control device 2, the second self-powered control device 2 can be equipped in the grip part 1
It may include the switch of push type, when user uses hand pushed wheel type vehicle, hand steered grip part 1 simultaneously presses above-mentioned switch, self-powered
Motivation structure driving walking mechanism starts to walk, and user can adjust the direction of walking by grip part 1.
Bottom case 5 can be used for connecting front-wheel 6 and rear-wheel 4, and can play a certain protective role.Front axle 7 passes through
Shaft body 71 is rotatablely connected front-wheel 6, in this way, shaft body 71 will not be revolved with the rotation of front-wheel 6 in 6 walking process of front-wheel
Turn.Wherein, mounting hole can be round, ellipse or both ends are bar shaped of half-circle-arc shape etc..
Fig. 4 shows the schematic diagram of the mounting hole according to an embodiment of the present invention, as shown in figure 4, using both ends as semicircle
For the bar shaped of arc shape, which can extend along direction (vertical direction) perpendicular to the ground, and the diameter of semi arch can be with
Slightly larger than the outer diameter of shaft body 71, in this way, shaft body 71 can move up and down in mounting hole.Above is only the one of mounting hole
A example, as long as shaft body 71 can prolong roughly vertical direction movement, the unlimited Dingan County of the utility model in mounting hole
Fill shape, the opening direction in hole.
As shown in figure 3, in this example, self-powered switch may include contact 8 and switch triggering portion 73.Wherein, described to open
Trigger unit 73 is closed for triggering the contact 8, when switch triggering portion 73 and contact 8 contact, triggers contact 8, self-powered switch closes
It closes, when switch triggering portion 73 is separated with contact 8, self-powered switch is disconnected.The switch triggering portion 73 can be the axis of front axle 7
The end that main body 71 extends in the side of the bottom case 5, front axle 7 can also include connection shaft body 71 and switch triggering portion 73
Interconnecting piece 72.Interconnecting piece 72 and switch triggering portion 73 can be located at the not ipsilateral of bottom case 5 with front-wheel 6, for example, interconnecting piece 72
The outside of bottom case can be located at switch triggering portion 73, in switch triggering portion in the case where 73 failure, for ease of maintenaince.
Mobile caused switch triggering portion 73 and the dislocation of contact 8 occur during the work time for switch triggering portion 73 in order to prevent
It disconnects, bottom case 5 can also include the recess portion 51 for accommodating contact 8, and switch triggering portion 73 can move in recess portion 51.
Wherein, the position of recess portion 51 is set, extending direction can be with the position of reference switch trigger unit 73, the extension of mounting hole
Direction etc..For example, mounting hole extends along direction (vertical direction) perpendicular to the ground, then recess portion 51 may be set to be
Extend along the vertical direction.As shown in figure 3, interconnecting piece 72 extends downwardly, switch triggering portion 73 is located at the lower section of shaft body 71, then
Recess portion 51 can be set in the downside of bottom case；If interconnecting piece 72 upwardly extends, switch triggering portion 7 is located at the top of shaft body 71,
So recess portion 51 can be set in the upside of bottom case.
Fig. 2 and the case where contacting ground for front-wheel 6 shown in Fig. 3, when the front-wheel 6 contacts ground, due to bottom case 5
Self weight, the upper contact of shaft body 71 and mounting hole, the switch triggering portion 73 contacts (connection) with the contact 8.At this point, machine
Tool formula closes the switch, and self-driven mechanism can drive walking mechanism normal walking, for example, can be walked according to the speed of setting.
When hand pushed wheel type vehicle is walked on the slope, due to the self weight of bottom case 5, shaft body 71 is still upper with mounting hole
Side contacts, the switch triggering portion 73 are contacted with the contact 8, do not influence self-driven mechanism driving walking mechanism normal walking.
Fig. 5 shows the structural schematic diagram of the hand pushed wheel type vehicle according to an embodiment of the present invention.Fig. 6 shows M in Fig. 5
Partial enlarged view.
Fig. 5 and it is shown in fig. 6 for front-wheel 6 it is high from the ground the case where, for example, due to user by grip part 1 to the left obliquely downward
Side's application pressure, which sticks up front-wheel 6, causes front-wheel 6 high from the ground.The front-wheel 6 it is high from the ground when, due to front-wheel 6 and
The self weight of shaft body 71, shaft body 71 are moved to the downside of mounting hole, and the switch triggering portion 73 disconnects the company with the contact 8
Connect (i.e. switch triggering portion 73 is separated with contact 8).At this point, the mechanical switch disconnects, self-driven mechanism can stop driving
Walking mechanism normal walking, user can apply the power turned left or turned right by grip part 1 and realize pivot stud.
In hand pushed wheel type vehicle during advance, front-wheel height caused by depression in the land surface from the ground when, due to front-wheel 6 with
And the self weight of shaft body 71, shaft body 71 are moved to the downside of mounting hole, the switch triggering portion 73 disconnects and the contact 8
Connection.At this point, the mechanical switch disconnects, self-driven mechanism can stop driving walking mechanism normal walking, by this
Mode can guarantee the safety during hand pushed wheel type vehicle to run, in order to avoid causing the accident and to the damage of hand pushed wheel type vehicle
Wound.
In one possible implementation, the contact can be slide rheostat.In one example, the sliding
Rheostat can extend in the generally vertical direction in above-mentioned recess portion 51.
The electrical block diagram according to an embodiment of the present invention is shown respectively in Fig. 7 a and Fig. 7 b.Such as Fig. 7 a and Fig. 7 b
Shown, slide rheostat 9 is separately connected power supply and self-driven mechanism 10.
As shown in Figure 7a, the front-wheel 6 it is high from the ground when, the shaft body 71 is moved to the downside of the mounting hole,
The switch triggering portion 73 is (downward) mobile, at this point, the upper surface of slide rheostat 9 most connection is in the loop, sliding becomes
Resistance 9 resistance value of device becomes larger.At this point, the revolving speed of self-driven mechanism 10 is reduced from driving switch, and further, the self-driven mechanism
10 reduce the speed of travel of the walking mechanism.
As shown in Figure 7b, when the front-wheel 6 contacts ground, the shaft body 71 is moved to the upside of the mounting hole,
The switch triggering portion 73 is (upward) mobile, at this point, the connection of the upper surface of slide rheostat 9 sub-fraction is in the loop, sliding becomes
Resistance 9 resistance value of device becomes smaller.At this point, walking mechanism described in 10 normal driving of self-driven mechanism (is changed according to the walking of the speed of setting
Yan Zhi, the self-driven mechanism restore the speed of travel of the walking mechanism).
By the way that slide rheostat is arranged, the speed of travel of walking structure is adjusted flexibly according to the different conditions of front-wheel, is not required to
Self-powered switch is operated repeatedly, and operation sequence is simple, reduces maloperation.
Example 1.2
In alternatively possible implementation, the contact 8 can be located at the top in the mounting hole, the axis master
Switch triggering portion can be set on the upside of body 71.In other words, switch triggering portion can be arranged directly in shaft body 71.Fig. 8 a shows
Out according to the structural schematic diagram of the contact of an embodiment of the present invention and mounting hole, as shown in Figure 8 a, contact 8 is located at mounting hole
Top setting.
At this point, the front-wheel 6 it is high from the ground when, due to the self weight of front-wheel 6 and shaft body 71, the shaft body 71 is moved
The downside of the mounting hole is moved, the switch triggering portion disconnects the connection with the contact 8；Ground is contacted in the front-wheel 6
When, due to the self weight of bottom case 5, the shaft body 71 is moved to the upside of the mounting hole, the switch triggering portion and the touching
8 connection of point.
In this example, the contact 8 or slide rheostat, the slide rheostat can be from the mounting hole
Interior top extends to bottom；Fig. 8 b is shown to be shown according to the slide rheostat of an embodiment of the present invention and the structure of mounting hole
It is intended to, as shown in Figure 8 b, slide rheostat 9 extends to bottom from the top in mounting hole.
In this way, referring to Fig. 7 a and Fig. 8 b, the front-wheel 6 it is high from the ground when, due to front-wheel 6 and shaft body 71 from
Weight, the shaft body 71 are moved to the downside of the mounting hole, and slide rheostat resistance value becomes larger, and the self-driven mechanism reduces institute
State the speed of travel of walking mechanism；Referring to Fig. 7 b and Fig. 8 b, when the front-wheel 6 contacts ground, due to the self weight of bottom case 5,
The shaft body 71 is moved to the upside of the mounting hole, and slide rheostat resistance value becomes smaller, described in the self-driven mechanism recovery
The speed of travel of walking mechanism.
By switching self-powered in the mounting hole being arranged on bottom case, do not need that recess portion 51, connection are arranged outside bottom case
The structures such as portion 72 and switch triggering portion 73 simplify the structure and more beautiful of self-powered switch.
First self-powered control device: example 2
First self-powered control device may include identification sensor；The identification sensor may include first sensor and
Second sensor, the first sensor are used to detect the angle of the front-wheel 6 and ground, and the second sensor is for detecting
The pressure of the front-wheel and ground；The first self-powered control device determines whether the front-wheel is high according to the angle and pressure
From the ground.
Wherein, the line and horizontal plane that the angle on front-wheel 6 and ground can refer to front-wheel 6 and the center of rear-wheel 4 are vertical
Angulation in upwardly direction.Front-wheel 6 and the pressure on ground can determine in several ways, such as can be directly preceding
Setting sensor detects the pressure of front-wheel 6 and ground on wheel 6, can also be sensed by being arranged between front axle 71 and front-wheel 6
Device detects the pressure between front axle 71 and front-wheel 6, and determines the pressure between front-wheel 6 and ground according to the pressure detected.
In one possible implementation, first sensor can be angular transducer, and first sensor can be set
On front axle perhaps on bottom case in front-wheel 6 high from the ground or when hand pushed wheel type vehicle is walked on the slope, first sensor
It can detecte the angle of front-wheel 6 with respect to the horizontal plane；Alternatively, first sensor can be two height sensors, pacify respectively
Mounted in front-wheel 6 and rear-wheel 4 to detect the height of front-wheel 6 and the height of rear-wheel 4, the first self-powered control device can be according to front-wheel 6
Height and the height and front-wheel 6 of rear-wheel 4 and the distance of rear-wheel 4 determine the angle of front-wheel 6 with respect to the horizontal plane.
In one possible implementation, second sensor can be pressure sensor, such as capacitive pressure senses
Device, piezoresistive pressure sensor or ceramic pressure sensor etc..Second sensor can be set at one in following position
Or many places: for example, on front-wheel 6, between front axle 71 and front-wheel 6 or between bottom case 5 and front axle 71 etc..To be arranged preceding
For between wheel shaft 71 and front-wheel 6, second pressure sensor be can be set on front axle 71, during front-wheel 6 rotates,
It should be identical if it is the pressure size detected in the two sides up and down of level walking, front axle 71；If hand pushed wheel type
Vehicle walk on the slope or front-wheel 6 it is high from the ground when, the pressure size that the two sides up and down of front axle 71 detect should be
Different, the difference of the pressure detected according to upper and lower two sides can determine the pressure of front-wheel 6 Yu ground.
In one possible implementation, the first self-powered control device can also include control unit；
The angle and pressure detected in the control unit according to the identification sensor judges that the front-wheel height is liftoff
When face, the control unit sends first control signal to the self-driven mechanism, and the self-driven mechanism is according to described first
Control signal reduces the speed of travel of the walking mechanism or stops driving the walking mechanism.
The angle and pressure detected in the control unit according to the identification sensor judges the front-wheel contiguously
When face, the control unit sends second control signal to the self-driven mechanism, and the self-driven mechanism is according to described second
Control signal restores the speed of travel of the walking mechanism.
For example, the angular transducer can send the angle detected to the control unit, and the pressure passes
Sensor can send the pressure detected to the control unit.Whether control unit can determine front-wheel 6 according to the angle
It raises, when control unit determines that front-wheel 6 is raised and the pressure is less than preset threshold according to angle, before control unit judgement
Wheel 6 is high from the ground；When determining that front-wheel 6 is raised according to angle in control unit, and judging that pressure is greater than preset threshold, control unit
Judge that front-wheel 6 contacts ground.
Wherein, it may be to cause since user sticks up front-wheel 6 that front-wheel 6, which is raised, it is also possible to be due to hand pushed wheel type
Vehicle is walked on the slope.Control unit can determine front-wheel 6 according to the angle for the front-wheel and ground that angular transducer detects
Whether raise, for example, control unit may determine that be raised when the angle is greater than 0 ° for front-wheel 6, is equal to 0 ° in the angle
When, control unit may determine that not to be raised for front-wheel 6.
When the angle is less than 0 °, control unit may determine that depression in the land surface, unevenness etc., in this case, control
Component processed can send first control signal to self-driven mechanism, and the self-driven mechanism is reduced according to the first control signal
The speed of travel of the walking mechanism stops driving the walking mechanism.
It should be noted that above-mentioned 0 ° is only an example, it is also possible to it is less than 0 ° of an angle, such as
The radius of front-wheel 6 is less than the radius of rear-wheel 4, even when being in level walking, the line and water of front-wheel 6 and the center of rear-wheel 4
Plane angulation on direction straight up is also less than 0 ° of an angle, and therefore, the numerical value of above-mentioned angle is only
It is an example, does not limit the utility model in any way.
Above-mentioned preset threshold can be it is pre-set according to front-wheel 6 and the angle on ground because hand pushed wheel type vehicle exists
When slope is walked, the angle on slope is different, and the pressure between front-wheel 6 and slope also can be different.If being only arranged one to preset
Threshold value may result in the judging result inaccuracy of control unit.As an example, the first self-powered control device may include
Memory module, memory module can store the corresponding relationship of different angle and preset threshold.
For control unit when determining that front-wheel 6 is raised, control unit can be corresponding with the lookup of the angle on ground according to front-wheel 6
The preset threshold of pressure.Then the front-wheel 6 detected and the pressure on ground and the relationship of preset threshold are judged, if pressure is less than in advance
If when threshold value, control unit may determine that front-wheel 6 is high from the ground, if pressure is greater than preset threshold, control unit be may determine that
Front-wheel 6 contacts ground.
In one example, it can be linear relationship between above-mentioned angle and preset threshold, control unit is according to reception
To angle determine that front-wheel is raised after, the default threshold of the angle that receive corresponding (pressure) can be determined according to above-mentioned linear relationship
Value.
In another example, it can be the corresponding preset threshold of angle in a section, memory module can deposit
Store up the corresponding relationship between the angle and preset threshold in different sections.Control unit is determining that front-wheel is lifted according to the angle received
Gao Hou can search the corresponding preset threshold of angle received according to above-mentioned corresponding relationship.In a kind of possible implementation
In, as shown in Fig. 2, Fig. 5, second self-powered control device 2, the second self-powered control dress can be installed in the grip part 1
When setting 2 unlatching, the first self-powered control device is worked normally.
Wherein, the second self-powered control device 2 may include the switch of push type, speed adjusting module etc..Fig. 9 is shown according to this reality
With the first self-powered control device of a novel embodiment and the circuit connecting relation schematic diagram of the second self-powered control device 2.
For being both self-powered switch, as shown in figure 9, in two self-powered switch all closures, self-driven mechanism
It can work normally, when any one self-powered switch disconnects, self-driven mechanism stops working.
When the first self-powered control device includes identification sensor and control unit, only the second self-powered control device 2 is opened
The control to self-driven mechanism just may be implemented in Qi Shi, the first self-powered control device.
In this way, user still can control hand in the failure of the first self-powered control device or other emergencies
Wheeled vehicle is pushed away to stop, in order to avoid cause the accident.
Each embodiment of the utility model is described above, above description is exemplary, and non-exclusive, and
And it is also not necessarily limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for
Many modifications and changes are obvious for those skilled in the art.The choosing of term used herein
It selects, it is intended to best explain the principle, practical application or the technological improvement to the technology in market of each embodiment, or make this skill
Other those of ordinary skill in art field can understand each embodiment disclosed herein.
Claims (21)
1. a kind of hand pushed wheel type vehicle characterized by comprising
Walking mechanism, the walking mechanism include front wheels and rear wheels；
Self-driven mechanism, the self-driven mechanism is for driving the walking mechanism；
First self-powered control device, whether the first self-powered control device is high from the ground according to the front-wheel, described to control
Self-driven mechanism so that the self-driven mechanism the front-wheel height from the ground when, reduce the speed of travel of the walking mechanism
Or stop driving the walking mechanism.
2. hand pushed wheel type vehicle according to claim 1, which is characterized in that
The first self-powered control device includes self-powered switch, when the front-wheel height from the ground when, self-powered switch reduces institute
It states the revolving speed of self-driven mechanism or disconnects the connection of the self-driven mechanism and the walking mechanism, the self-driven mechanism drop
The speed of travel of the low walking mechanism stops driving the walking mechanism.
3. hand pushed wheel type vehicle according to claim 1, which is characterized in that
The first self-powered control device includes identification sensor；The identification sensor includes first sensor and the second sensing
Device, the first sensor are used to detect the angle on the front-wheel and ground, and the second sensor is for detecting the front-wheel
With the pressure on ground；
The first self-powered control device determines whether the front-wheel is high from the ground according to the angle and pressure.
4. hand pushed wheel type vehicle according to claim 2, which is characterized in that
Self-powered switch is mechanical switch, the front-wheel height from the ground when, the mechanical switch at least breaking part
Connection.
5. hand pushed wheel type vehicle according to claim 4, which is characterized in that
The hand pushed wheel type vehicle further include: bottom case and front axle, the bottom case include the mounting hole for supporting the front axle；
The front-wheel is mounted on the side of the bottom case by the front axle, and the front axle includes being rotatablely connected the front-wheel
Shaft body, the shaft body can be movable in the mounting hole；
The front-wheel height from the ground when, the shaft body is moved to the downside of the mounting hole, and the mechanical switch is at least
Breaking part connection,
When the front-wheel contacts ground, the shaft body is moved to the upside of the mounting hole, the mechanical switch closure.
6. hand pushed wheel type vehicle according to claim 5, which is characterized in that
The mechanical switch includes contact, and the bottom case further includes the recess portion for accommodating the contact,
The front axle further includes for triggering the switch triggering portion of the contact and connecting the shaft body and switch touching
The interconnecting piece in hair portion,
The front-wheel height from the ground when, the shaft body is moved to the downside of the mounting hole, and the switch triggering portion disconnects
With the connection of the contact, the self-driven mechanism stops driving the walking mechanism；
When the front-wheel contacts ground, the shaft body is moved to the upside of the mounting hole, the switch triggering portion and institute
Contact connection is stated, the self-driven mechanism starts to drive the walking mechanism.
7. hand pushed wheel type vehicle according to claim 6, which is characterized in that
The contact is located at the top in the recess portion.
8. hand pushed wheel type vehicle according to claim 6, which is characterized in that
The contact is slide rheostat,
The front-wheel height from the ground when, the shaft body is moved to the downside of the mounting hole, and the switch triggering portion is mobile,
Slide rheostat resistance value becomes larger, and the self-driven mechanism reduces the speed of travel of the walking mechanism；
When the front-wheel contacts ground, the shaft body is moved to the upside of the mounting hole, and the switch triggering portion is mobile,
Slide rheostat resistance value becomes smaller, and the self-driven mechanism restores the speed of travel of the walking mechanism.
9. hand pushed wheel type vehicle according to claim 8, which is characterized in that
Extend in the generally vertical direction of the slide rheostat within the recess.
10. according to the described in any item hand pushed wheel type vehicles of claim 6-9, which is characterized in that
The interconnecting piece and the switch triggering portion are located at the not ipsilateral of the bottom case with the front-wheel.
11. hand pushed wheel type vehicle according to claim 5, which is characterized in that
The mechanical switch includes contact；
The hand pushed wheel type vehicle further include: bottom case, the bottom case include the mounting hole for supporting the front axle, the contact position
Top in the mounting hole；
Switch triggering portion is provided on the upside of the shaft body；
The front-wheel height from the ground when, the shaft body is moved to the downside of the mounting hole, and the switch triggering portion disconnects
With the connection of the contact, the self-driven mechanism stops driving the walking mechanism；
When the front-wheel contacts ground, the shaft body is moved to the upside of the mounting hole, the switch triggering portion and institute
Contact connection is stated, the self-driven mechanism starts to drive the walking mechanism.
12. hand pushed wheel type vehicle according to claim 11, which is characterized in that
The contact is slide rheostat, and the slide rheostat extends to bottom from the top in the mounting hole；
When the shaft body is moved to the downside of the mounting hole, slide rheostat resistance value becomes larger, and the self-driven mechanism reduces
The speed of travel of the walking mechanism；
When the shaft body is moved to the upside of the mounting hole, slide rheostat resistance value becomes smaller, and the self-driven mechanism restores
The speed of travel of the walking mechanism.
13. hand pushed wheel type vehicle according to claim 3, which is characterized in that
The first self-powered control device further includes control unit；
When the angle and pressure detected in the control unit according to the identification sensor judges the front-wheel height from the ground,
The control unit sends first control signal to the self-driven mechanism, and the self-driven mechanism is believed according to first control
It number reduces the speed of travel of the walking mechanism or stops driving the walking mechanism；
When the angle and pressure detected in the control unit according to the identification sensor judges the front-wheel contact ground,
The control unit sends second control signal to the self-driven mechanism, and the self-driven mechanism is believed according to second control
Number restore the speed of travel of the walking mechanism.
14. hand pushed wheel type vehicle according to claim 13, which is characterized in that
The hand pushed wheel type vehicle further include: bottom case, the front-wheel is mounted on the side of the bottom case by front axle, before described
Wheel is rotatablely connected the front axle；
The first sensor is angular transducer, and the first sensor is mounted on the bottom case or front axle；
The second sensor is pressure sensor, and the second sensor is installed on one or more in following position: institute
It states on front-wheel, between the front axle and the front-wheel or between the bottom case and the front axle.
15. hand pushed wheel type vehicle according to claim 14, which is characterized in that
The pressure sensor is capacitance pressure transducer,.
16. hand pushed wheel type vehicle according to claim 14, which is characterized in that
The angular transducer sends the angle that detects to the control unit, and the pressure sensor is to the control unit
Send the pressure detected.
17. hand pushed wheel type vehicle according to claim 16, which is characterized in that
When determining that the front-wheel is raised according to the angle in the control unit, and judging that the pressure is less than preset threshold,
The control unit judges the front-wheel height from the ground.
18. hand pushed wheel type vehicle according to claim 16, which is characterized in that
When determining that the front-wheel is raised according to the angle in the control unit, and judging that the pressure is greater than preset threshold,
The control unit judges front-wheel contact ground.
19. hand pushed wheel type vehicle described in 7 or 18 according to claim 1, which is characterized in that
There are corresponding relationships with the angle for the preset threshold.
20. hand pushed wheel type vehicle according to claim 1, which is characterized in that the hand pushed wheel type vehicle further include:
Operating stick, the operating stick include grip part, are equipped with the second self-powered control device in the grip part, described second certainly
When driving control device unlatching, the first self-powered control device is worked normally.
21. hand pushed wheel type vehicle according to claim 1, which is characterized in that
The self-driven mechanism is at least used to drive the rear-wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055751.3U CN209002355U (en) | 2018-07-04 | 2018-07-04 | Hand pushed wheel type vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055751.3U CN209002355U (en) | 2018-07-04 | 2018-07-04 | Hand pushed wheel type vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209002355U true CN209002355U (en) | 2019-06-21 |
Family
ID=66829310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821055751.3U Active CN209002355U (en) | 2018-07-04 | 2018-07-04 | Hand pushed wheel type vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209002355U (en) |
-
2018
- 2018-07-04 CN CN201821055751.3U patent/CN209002355U/en active Active
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