WO2023046138A1 - 一种手推车 - Google Patents

一种手推车 Download PDF

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Publication number
WO2023046138A1
WO2023046138A1 PCT/CN2022/121221 CN2022121221W WO2023046138A1 WO 2023046138 A1 WO2023046138 A1 WO 2023046138A1 CN 2022121221 W CN2022121221 W CN 2022121221W WO 2023046138 A1 WO2023046138 A1 WO 2023046138A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
assembly
steering
wheel
control
Prior art date
Application number
PCT/CN2022/121221
Other languages
English (en)
French (fr)
Inventor
王尧尧
冯守川
Original Assignee
格力博(江苏)股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202122353964.2U external-priority patent/CN216185390U/zh
Priority claimed from CN202111141813.9A external-priority patent/CN115871764A/zh
Priority claimed from CN202111221809.3A external-priority patent/CN115991227A/zh
Priority claimed from CN202122528648.4U external-priority patent/CN216185392U/zh
Priority claimed from CN202122528651.6U external-priority patent/CN216034605U/zh
Priority claimed from CN202111223256.5A external-priority patent/CN115991228A/zh
Priority claimed from CN202111244371.0A external-priority patent/CN116022211A/zh
Priority claimed from CN202122589897.4U external-priority patent/CN215904553U/zh
Application filed by 格力博(江苏)股份有限公司 filed Critical 格力博(江苏)股份有限公司
Priority to EP22872182.5A priority Critical patent/EP4397571A1/en
Publication of WO2023046138A1 publication Critical patent/WO2023046138A1/zh
Priority to US18/611,751 priority patent/US20240227901A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/0026Propulsion aids
    • B62B5/0069Control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/001Steering devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/0026Propulsion aids
    • B62B5/0033Electric motors
    • B62B5/0036Arrangements of motors
    • B62B5/004Arrangements of motors in wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/0026Propulsion aids
    • B62B5/0033Electric motors
    • B62B5/0036Arrangements of motors
    • B62B5/0043One motor drives one wheel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/0026Propulsion aids
    • B62B5/0033Electric motors
    • B62B5/0053Arrangements of batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/0026Propulsion aids
    • B62B5/0066Transmission of movement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/04Braking mechanisms; Locking devices against movement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/04Braking mechanisms; Locking devices against movement
    • B62B5/0438Braking mechanisms; Locking devices against movement hand operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/04Braking mechanisms; Locking devices against movement
    • B62B5/048Hub brakes; drum brakes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/06Hand moving equipment, e.g. handle bars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/04Braking mechanisms; Locking devices against movement
    • B62B2005/0471Disk brakes

Definitions

  • the invention relates to the technical field of garden tools, in particular to a trolley.
  • Trolleys are frequently used and indispensable tools in daily life. They are mainly used for short-distance delivery of goods; Bed sheets, quilt covers and sundries loaded with rubbish or changed by residents, and workers on construction sites are used to load yellow sand, cement, bricks, etc. These trolleys greatly facilitate our lives.
  • the trolleys on the market are usually composed of parts such as a bucket, a frame, a push rod, and universal wheels, but some of the existing trolleys on the market do not have a brake mechanism; this kind of trolley will be dangerous when used in some scenes in life. For example, when walking on a sloping road with heavy objects on the cart, if the user is exhausted or accidentally falls, or the battery pack is low, or an acquaintance unintentionally releases the cart while chatting, the cart may be damaged. Slipping out of control, causing damage to property and personal safety.
  • Another part of the existing trolleys on the market contains a braking mechanism, but when the braking mechanism of a traditional trolley is applied to an electric trolley, there is no control device between the braking mechanism and the driving device, which may cause the braking mechanism and the driving device to operate at the same time , which greatly reduces the braking performance of the brake mechanism. In severe cases, it may cause the brake mechanism to fail, cause serious accidents, and cause damage to property and personal safety.
  • these carts on the market basically do not have the function of controlling the steering, and can only rely on human power to exert force laterally to drive the universal wheels to rotate to achieve the purpose of steering; It takes a lot of push to turn, which is easy to make people feel tired; or in a relatively narrow space, relying on human power to push the cart to turn, sometimes the strength is not accurately controlled, and the cart cannot turn smoothly to the end.
  • the required angle needs to be adjusted repeatedly, which is time-consuming and labor-intensive.
  • the object of the present invention is to provide a kind of trolley, comprising:
  • the driving wheel is connected to the vehicle body assembly through the wheel shaft, and the driving wheel can rotate around the wheel shaft;
  • the power assembly is installed in the hub of the driving wheel and drives the driving wheel to rotate;
  • the brake assembly is partially arranged on the driving wheel to realize the braking of the driving wheel
  • control assembly arranged on the vehicle body assembly and electrically connected to the power assembly and the brake assembly;
  • a power supply device arranged on the vehicle body assembly and electrically connected to the power assembly, the brake assembly and the control assembly;
  • the control assembly includes a steering control device
  • the steering control device is electrically connected to the power assembly in the driving wheels on both sides of the vehicle body assembly, and is used to control the driving of the two sides of the vehicle body assembly.
  • the steering of the wheels, the steering control device includes: a bracket, a control panel is installed in it; a steering switch, installed on the bracket, and connected with the control panel, the steering switch is used to control the overall into the steering of the drive wheels on both sides.
  • the steering control device further includes:
  • a steering handle connected to the bracket through a rotating shaft
  • a main switch installed inside the bracket, connected to the control panel, and controlled by the steering handle;
  • a return spring is sleeved on the rotating shaft
  • the pressure plate is fixedly connected with the bracket to fix the steering switch.
  • three different gears are set in the control panel, namely, a left-turn gear, an intermediate gear and a right-turn gear, and are controlled by the steering switch.
  • At least one indicator light is further arranged on the control board, and the indicator light is used to indicate the state of the steering switch.
  • control board is further provided with three indicator lights corresponding to the three different gear positions of the left-turn gear, the intermediate gear and the right-turn gear.
  • a pressure plate is also included, and the pressure plate is fixedly connected with the bracket by welding or buckling to fix the steering switch, and the indicator light is installed on the pressure plate .
  • a control box is installed on the frame of the vehicle body assembly, and the control box is electrically connected to the steering control device through a signal line.
  • the power assembly includes an in-wheel motor placed in the hub of the drive wheel.
  • the brake assembly includes:
  • the first driving member is fixedly connected to the frame of the vehicle body assembly
  • the brake pad is connected to the first driving member
  • the operating assembly is installed on the frame, and includes a second driving part and a brake handle, the second driving part is connected to the first driving part through a hydraulic oil pipe, and the brake handle is installed on the second On the driving part, when braking, the brake handle pushes the hydraulic oil in the second driving part to be squeezed into the first driving part along the hydraulic oil pipe, thereby pushing the brake pads, so that the brake pads contact and squeeze the brake disc, and the brake disc is fixedly connected with the hub of the driving wheel.
  • the brake assembly includes:
  • the first brake component is fixed at the drive wheel to brake the drive wheel
  • the second braking component is fixed on the push rod of the vehicle body assembly and is connected to the first braking component through a cable, and the second braking component is electrically connected to the control device through a signal line;
  • the power supply device includes:
  • the battery box is fixed on the push rod of the car body assembly
  • a battery pack detachably fixed in the cavity of the battery pack
  • the power line is electrically connected to the battery pack and the hub motor in the power assembly.
  • the vehicle body assembly includes a frame and a car body, the car body is fixed on the frame, and the frame includes:
  • a support frame fixed at the bottom of the vehicle body and carrying the vehicle body
  • the axles on both sides of the drive wheel are fixedly connected to the fixed frame.
  • the present invention also proposes a trolley, comprising:
  • a frame, a first wheel hub motor and a second wheel hub motor are respectively installed in the driving wheels on both sides of the bottom of the frame;
  • the control assembly includes a steering control device, the steering control device is installed on the frame, and is electrically connected with the first hub motor and the second hub motor, and is used to control the first hub motor and the second hub motor.
  • the steering of the second wheel hub motor, the steering control device includes: a bracket, a control board is installed in it; a steering switch is installed on the bracket and connected to the control board, and the steering switch is used to control steering of the first in-wheel motor and the second in-wheel motor;
  • the trolley is set with three different gears: left-turning gear, intermediate gear and right-turning gear, and is controlled by the steering switch.
  • the first wheel hub motor rotates forward at a set speed at a constant speed, while the second wheel hub motor rotates at the same speed at a constant speed in the opposite direction to the first wheel hub motor;
  • the first in-wheel motor and the second in-wheel motor rotate in the same direction;
  • the first in-wheel motor rotates at the same speed and in the opposite direction to the second in-wheel motor at a constant speed.
  • the The control box when the pushcart suddenly needs to turn when it is running in a normal running state, after pressing the steering switch to the left-turn gear or right-turn gear, the The control box first cuts off the power of the first wheel hub motor and the second wheel hub motor and stops running, and then executes the steering function when the cart stops completely.
  • bearing housings are installed symmetrically on both sides of the bottom of the frame, the driving wheel and the brake assembly are respectively installed on the bearing housings on both sides, and the operating assembly passes through two
  • the hydraulic oil pipes are respectively connected to the first driving parts in the brake assemblies on both sides.
  • the driving wheel is fixedly connected to the bearing seat through the rotating shaft, and the in-wheel motor and the brake disc are installed on the rotating shaft.
  • a flat groove is provided on the end of the rotating shaft connected to the bearing seat, and the rotating shaft is fixedly connected to the bearing seat through a pressing plate, and the pressing plate is located at the flat groove .
  • the first driving member includes a housing and a piston disposed in the housing, an oil inlet is provided on the housing, and the oil inlet is connected to the hydraulic oil pipe, Hydraulic oil enters the housing along the oil inlet to push the piston.
  • the brake pad includes a first brake pad and a second brake pad, the first brake pad is fixedly connected to the piston, and the second brake pad is fixedly connected to the housing .
  • the brake disc is located between the first brake pad and the second brake pad.
  • the second driving member includes an oil shell
  • the oil pipe screw is located in the oil shell, and forms an oil storage chamber with the oil shell, and the oil storage chamber passes through
  • the hydraulic oil pipe communicates with the oil storage chamber of the first driving member.
  • the brake handle is rotatably connected to the oil case through a rotating shaft, and a return spring is sheathed on the rotating shaft.
  • a switch is provided at the bottom of the second driving member, and the switch is connected to the control box on the frame through a signal line.
  • the brake handle includes a grip part, a brake part and a switch trigger part, the brake part and the switch trigger part are located at the same end of the grip part, and the brake part There is an included angle with the trigger part of the switch.
  • the brake part is used to push the oil pipe screw in the second driving part to move
  • the switch trigger part is used to control the on-off of the switch
  • the frame further includes a push rod, and both the control box and the operation assembly are installed on the push rod.
  • the first brake component includes:
  • the brake drum is coaxially fixed with the hub of the driving wheel and forms an accommodating cavity;
  • the brake cover is fixedly connected with the vehicle body assembly and closes the opening of the accommodating chamber
  • At least two brake shoes are detachably and fixedly connected to the brake cover, and an elastic member is arranged between the two brake shoes and elastically connected through the elastic member;
  • At least two brake pads attached to the surface of the brake shoe and corresponding to the inner side wall of the accommodating cavity;
  • An adjusting rod one end is clamped between the two brake shoes, the other end passes through the brake cover and is rotatably connected with the brake cover;
  • One end of the adjustment bracket is fixedly connected to the adjustment rod, and the other end is transmission-connected to the second brake component through a pull cable.
  • the elastic member includes:
  • the two ends of the extension spring are connected with the connecting holes at the same end of the two brake shoes respectively.
  • a wire tube is sheathed on the cable connected to the adjustment bracket, and a stopper is fixed at one end of the wire tube close to the adjustment bracket, and the stopper is connected to the vehicle body as a whole. Into the rack fixed.
  • a first return spring is sheathed on the cable connected to the adjustment bracket, and is located between the stopper and the adjustment bracket.
  • the second brake component includes:
  • the installation sleeve is sleeved on the push rod in the car body assembly
  • the brake handle is rotationally connected with the installation sleeve through a rotating shaft;
  • a cable one end is fixedly connected to the brake handle, and the other end is fixedly connected to the adjustment bracket;
  • the brake switch is fixed on the installation sleeve and linked with the brake handle to realize the closing or opening of the brake switch;
  • a signal line electrically connects the brake switch and the control device.
  • a second return spring is sheathed on the rotating shaft connecting the brake handle and the installation sleeve.
  • universal wheels are fixed on the bottom of the frame.
  • a cavity is formed in the hub of the driving wheel for installing the power assembly and the first brake component.
  • the powertrain includes:
  • a hub motor installed in the cavity on the drive wheel
  • the two ends of the wheel shaft in the hub motor are passed through the waist groove of the frame, and are fixedly connected with the frame;
  • the rotor core of the in-wheel motor is fixedly connected to the side wall of the cavity;
  • a positioning assembly is installed at the joint between the wheel shaft of the hub motor and the frame.
  • the positioning component includes:
  • the positioning washer is coaxially installed at both ends of the wheel shaft of the hub motor, and a boss is formed on the positioning washer, and the boss is embedded in the waist groove of the frame;
  • the fixing nuts are threadedly connected to both ends of the wheel shaft of the hub motor.
  • the fixed frame includes:
  • Two sets of side plates are fixedly connected to both sides of the support frame, and the two ends of the axle are fixedly connected to the corresponding side plates;
  • connecting rods sequentially connecting the two groups of side plates
  • the two sets of side plates and the connecting rods form a frame structure, and the connecting rods are located below the support frame.
  • each set of side plates includes at least two side plates, and the two side plates are located on both sides of one drive wheel axially.
  • a waist-shaped groove is opened on each of the side plates, and an opening is opened at an edge position of each of the side plates, and the opening communicates with the waist-shaped groove;
  • the wheel shaft is placed in the waist-shaped groove through the opening, and is embedded and fitted with the waist-shaped groove.
  • the length of the waist-shaped groove is greater than the diameter of the opening.
  • flat shafts are formed at both ends of the wheel shaft, and positioning components are arranged on the flat shafts for fixedly connecting the flat shafts and the side plates.
  • the length of the cross-section of the flat shaft is greater than the diameter of the opening and less than the length of the waist-shaped groove.
  • the positioning component includes:
  • the positioning washer is coaxially installed at both ends of the wheel shaft, and a boss is formed on the positioning washer, and the boss is embedded in the waist-shaped groove, and the flat shaft is pressed against the waist in the groove;
  • the fixing nut is threadedly connected with the two ends of the wheel shaft.
  • the two connecting rods are located on both sides of the drive wheel in the vertical direction, and are respectively connected to two ends of a plurality of side plates.
  • the support frame includes:
  • the vertical rod is fixed on the two ends of the horizontal plate.
  • a groove is opened at the bottom of the bucket, and the longitudinal rod is placed in the groove.
  • a trolley proposed by the present invention satisfies the installation and fixation of large-sized wheels by installing the driving wheels in the fixed frame, so as to install a high-power power device in the hub of the large-sized wheels, thereby satisfying the requirements of the electric trolley. Momentum needs.
  • a trolley proposed by the present invention can effectively disperse the load on the side plates on both sides of the wheel shaft by fixing the two ends of the wheel shaft to the side plates, and can withstand the transportation of large loads. firmness and bearing capacity.
  • the trolley proposed by the present invention installs universal wheels at the rear of the support frame and installs driving wheels in the fixed frame, so as to achieve the function of adjusting the load-bearing center of gravity of the load-bearing bracket, and avoid the occurrence that the center of gravity of the chassis becomes higher due to the replacement of large-sized wheels. When the situation occurs, the overall stability of the electric trolley is effectively improved.
  • the trolley proposed by the present invention electrically connects the second brake component to the control device through the signal line, so that when the brake assembly is in the braking state, the control connection between the control device and the power assembly is disconnected, and then it can Effectively improve the braking performance and braking safety of the brake assembly.
  • a trolley proposed by the present invention can control the first braking component on the two driving wheels through a second braking component, so that the two driving wheels can be braked at the same time, which can improve the timeliness and safety of braking, and can also Improve the integration of the brake assembly, reduce the number of components of the brake assembly, and reduce production costs.
  • hub motors are installed on both driving wheels, and the two hub motors are simultaneously controlled by a control device, so that the simultaneous operation of the two driving wheels can be realized, and the dynamic performance of the driving wheels and the running of the vehicle body can be improved.
  • Stability; the first brake parts are installed on the two driving wheels, which can realize the simultaneous braking of the two driving wheels, and can stop quickly without side slipping, making the trolley run safer.
  • the trolley proposed by the present invention installs brake components on both sides of the bottom of the frame respectively, so that when the trolley is loaded with heavy objects and walks on a sloped road, the user is exhausted or accidentally falls or the power of the battery pack is insufficient. Under such circumstances, the cart may slip out of control, so as to avoid damage to property and personal safety.
  • the trolley proposed by the present invention uses one operating component to control two brake components at the same time, so that it is more convenient to operate, and the two wheels brake at the same time, which can realize rapid braking and avoid sideslip during braking Phenomenon, making the cart running process safer.
  • the trolley proposed by the present invention forms a linkage with the braking process of the trolley by setting a switch, and temporarily disconnects the control function of the control box on the opening or closing of the trolley when braking, so as to avoid accidental touches and cause danger. .
  • the steering of the first wheel hub motor and the second wheel hub motor at the bottom of the frame are respectively controlled by the control assembly.
  • the first wheel hub motor and the second wheel hub motor are controlled by the control assembly.
  • the above-mentioned second wheel hub motor rotates in the opposite direction at the same speed, so that the cart can turn on the spot, avoiding the need for a large push when the cart is loaded with heavy objects, and it is easy to make people feel tired , and in a relatively narrow space, relying on manpower to exert lateral force to push the cart to turn, sometimes the strength is not accurately controlled, and the cart cannot be smoothly turned to the required angle, and repeated adjustments are time-consuming and labor-intensive.
  • the problem is that the steering of the cart is convenient and labor-saving, so that the cart can quickly and conveniently realize the steering function in a narrow space or when it is full of heavy objects.
  • Fig. 1 is shown as the axonometric view of the present invention in an embodiment
  • Fig. 2 shows the schematic diagram of the bottom of the bucket in an embodiment of the present invention
  • Fig. 3 shows the structural schematic diagram of the bearing bracket in an embodiment of the present invention
  • Figure 4 shows an exploded schematic diagram of a positioning component in an embodiment of the present invention
  • Figure 5 shows a sectional view of the driving wheel in an embodiment of the present invention
  • Figure 6 shows a schematic diagram of the assembly of the wheel axle and the side plate in an embodiment of the present invention
  • Figure 7 shows an axonometric view of an embodiment of the present invention
  • Fig. 8 shows the structural representation of the push rod in an embodiment of the present invention
  • Fig. 9 is a schematic diagram showing the structure of the exterior of the first brake component in an embodiment of the present invention.
  • Figure 10 is a schematic diagram showing the internal structure of the first brake component in an embodiment of the present invention.
  • Fig. 11 is an enlarged view of part A in Fig. 10, which mainly shows the connection diagram of two brake shoes;
  • Fig. 12 shows the schematic diagram of the assembly of the adjusting rod in one embodiment of the present invention
  • Fig. 13 shows an enlarged view of part B in Fig. 12, mainly showing the structural schematic diagram of the adjusting rod;
  • Fig. 14 is shown as the assembly drawing that the second brake component is installed on the push rod in one embodiment of the present invention.
  • Figure 15 is a schematic structural view of a second brake component in an embodiment of the present invention.
  • Fig. 16 shows an enlarged view of part C in Fig. 12, mainly showing the structural schematic diagram of the clamping groove and the slot;
  • Fig. 17 shows the circuit diagram between the control device, the brake switch, the in-wheel motor and the power supply device
  • Figure 18 shows a schematic structural view of a cart proposed by the present invention
  • Figure 19 is a schematic structural view of the cart in an embodiment of the present invention.
  • Figure 20 is a schematic diagram showing the assembly of the brake assembly and the driving wheel in an embodiment of the present invention.
  • Fig. 21 shows a schematic diagram of the axle side of the brake assembly and the driving wheel in an embodiment of the present invention
  • Figure 22 shows the front view of the brake assembly and the drive wheel in an embodiment of the present invention
  • Fig. 23 shows a schematic structural view of the drive wheel in an embodiment of the present invention.
  • Fig. 24 is a schematic structural view of a brake assembly in an embodiment of the present invention.
  • Fig. 25 is a structural schematic view showing another angle of the brake assembly in an embodiment of the present invention.
  • Figure 26 is a schematic diagram of the cross-sectional structure along G-G in Figure 25;
  • Fig. 27 shows the exploded schematic view of the brake assembly in an embodiment of the present invention
  • Figure 28 is a schematic structural view of the operating components in an embodiment of the present invention.
  • Figure 29 is an exploded schematic view of the operating components in an embodiment of the present invention.
  • Figure 30 is a schematic structural view of the cart in an embodiment of the present invention.
  • Fig. 31 is a structural schematic view showing another angle of the trolley in an embodiment of the present invention.
  • Figure 32 is a schematic structural view of the control assembly in the cart in an embodiment of the present invention.
  • Figure 33 shows the front view of the control assembly in the cart in an embodiment of the present invention
  • Figure 34 is a schematic diagram of a cross-sectional structure along D-D in Figure 33;
  • Figure 35 is an exploded view of the control components in the cart in an embodiment of the present invention.
  • Figure 36 is a schematic circuit diagram of the present invention when the pushcart is moving forward in an embodiment
  • Fig. 37 shows the circuit diagram when the cart turns left in an embodiment of the present invention
  • Fig. 38 is a schematic diagram of the circuit when the cart turns right in an embodiment of the present invention.
  • Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
  • the present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
  • the terminology used in the embodiments of the present invention is for describing specific implementations, not for limiting the protection scope of the present invention.
  • the test methods for which specific conditions are not indicated in the following examples are usually in accordance with conventional conditions, or in accordance with the conditions suggested by each manufacturer.
  • the present invention provides an electric trolley, comprising car body assembly, driving wheel, power assembly 2, brake assembly 4, control assembly 5 and power supply unit 6, wherein the driving wheel is installed through the axle On the vehicle body assembly, the drive wheel can rotate around the wheel shaft, the power assembly is installed in the hub of the drive wheel to drive the drive wheel to rotate, and the brake assembly is arranged on the drive wheel to To realize the braking of the driving wheels, the control assembly is arranged on the vehicle body assembly, and is electrically connected with the power assembly and the brake assembly, and is used to control the power assembly and the brake assembly, and the power supply device is installed On the vehicle body assembly, and electrically connected with the power assembly, the brake assembly and the control assembly.
  • the bottom of the vehicle body is fixedly connected with the load-bearing bracket by bolts, the load-bearing bracket can support the vehicle body, and also provide installation conditions for the wheels, power unit and brake device;
  • a push rod is fixed on the side wall of the vehicle body, and the push rod The rod is located on the upper side of the side wall of the bucket, and the push rod is in the shape of a U-shaped rod, and its two ends are fixed on the side wall of the bucket by bolts; in addition, the control device is installed on the push rod for easy operation.
  • the car body assembly includes a car body 11 , a frame 12 and a push rod 13 .
  • the bottom of the vehicle bucket 11 is fixedly connected with the frame 12 by bolts, and the frame 12 can support the vehicle bucket 11, and simultaneously provide support for the wheel assembly 1, power assembly 2, brake assembly 4, control assembly 5 and
  • the power supply unit 6 provides installation conditions;
  • the push rod 13 is in the shape of a U-shaped rod, and its two ends are fixed on the side wall of the vehicle bucket 11 by bolts, and the two joints of the push rod 13 and the vehicle bucket 11 are formed with hooks 124.
  • the control assembly 5 and part of the brake assembly 4 are mounted on the push rod 13 for easy operation.
  • universal wheels 32 are also provided at the bottom of the vehicle body assembly.
  • the driving wheel 31 and the universal wheel 32 are all installed on the bottom of the frame 12, and the driving wheel 31 is connected to the frame 12 through the wheel shaft 1311, the driving wheel 31 rotates around the wheel shaft 1311, and the wheel shaft 1311 is located on the axis of the driving wheel 31;
  • the powertrain is installed in the wheel hub of the driving wheel 31, and the driving wheel 31 is used as the front wheel of the whole wheel 3, and the universal wheel 32 is used as the rear wheel of the whole wheel 3, and the installation mode of driving the front wheel and steering the rear wheel,
  • the electric trolley has the advantages of high rotation efficiency and sensitive steering.
  • the driving wheel 31 and the universal wheel 32 are arranged symmetrically at the bottom of the frame 12, adopting a four-wheel structure, which can effectively ensure the balance and stability of the trolley.
  • the frame 12 includes a supporting frame 121 and a fixing frame 122 .
  • the support frame 121 includes a horizontal plate 1211 and a vertical rod 1212; the horizontal plate 1211 is fixed on the bottom of the vehicle bucket 11 by bolts, and it should be noted that two horizontal plates 1211 are arranged at intervals along the length direction of the vehicle bucket 11, and the two Two horizontal plates 1211 are located at both ends of the longitudinal direction of the bottom of the car bucket 11, the universal wheels 32 are installed on the horizontal plate 1211 at the rear of the vehicle bucket 11, and the two universal wheels 32 are respectively fixed on the length of the horizontal plate 1211.
  • Two ends in the direction; two longitudinal rods 1212 are provided, and the two longitudinal rods 1212 are respectively fixed on the two ends of the horizontal plate 1211, and connected to the two horizontal plates 1211 in turn, and the longitudinal rod 1212 is curved corresponding to the front end of the bucket 11 set and bend towards the ground, and the bent ends of the two vertical rods 1212 are connected by a cross rod 1213 to form a stable frame structure.
  • the bottom of the bucket 11 is provided with grooves 112, the grooves 112 are located on both sides of the width direction of the bucket 11, and are opened along the length direction of the bucket 11, and the grooves 112 correspond to the longitudinal rods 1212 one by one; A straight section of 1212 is embedded in the groove 112 , so that the position of the longitudinal bar 1212 can be restricted, further increasing the stability of the installation of the support frame 21 .
  • the fixed frame 122 is fixedly connected with the supporting frame 121 , corresponding to the front end of the bucket 11 , used for installing the driving wheel 31 , and includes side plates 1221 and connecting rods 1222 .
  • each group of side plates 1221 corresponds to a driving wheel 31, and each group of side plates 1221 includes two side plates 1221 plate 1221, a driving wheel mounting position (not shown in the figure) is formed between every two side plates 1221, and the two driving wheel mounting positions correspond to both sides of the width direction of the bucket 11, and the two driving wheels 31 are arranged on the corresponding In the installation position (that is, the drive wheel 31 is located between the two side plates 1221 in each group), one side plate 1221 in each group is fixedly connected with the two longitudinal rods 1212 respectively, and the two side plates 1221 are respectively located on the two sides.
  • the two sides of the two longitudinal bars 1212 are away from each other; two connecting bars 1222 are provided in this embodiment, and the connecting bars 1222 pass through the four side plates 1221 in turn, and the four side plates 1221 are fixedly connected, and the two connecting bars 1222 are respectively located at both ends of the side plate 1221 in the length direction (that is, the two connecting rods 1222 are located on both sides of the vertical axis of the driving wheel 31), and a frame structure is formed by the four side plates 1221 and the two connecting rods 1222, so that the fixed
  • the frame 122 has high structural strength, and can withstand a large torque when the driving wheel 31 rotates, thereby improving the stability of the overall structure.
  • a waist-shaped groove 1223 is opened on each side plate 1221, and an opening 1224 is opened at the edge position of each side plate 1221, each side plate
  • the openings 1224 on the side plate 1221 communicate with the waist groove 1223 on the side plate 1221, and the length of the opening 1224 is smaller than the length of the waist groove 1223.
  • the wheel shaft 1311 is placed in the waist groove 1223 through the opening 1224.
  • the axes of the waist grooves 1223 on each side plate 1221 are on the same straight line, and the wheel shaft 1311 is placed in the waist grooves 1223 through the openings 1224, and is clamped and fixed with the waist grooves 1223, so as to realize the drive wheel
  • the installation of 31 is fixed, so that the installation positions of the two drive wheels 31 are symmetrical, which can improve the overall stability of the electric trolley.
  • the two ends of the axle 1311 are coaxially formed with a flat shaft 1312, and the length of the cross section of the flat shaft 1312 is greater than the depth of the opening 1224 and less than the The length of the waist groove 1223, the two flat shafts 1312 are sleeved with a positioning assembly 123, which is used to fixedly connect the flat shaft 1312 and the side plate 1221, so as to realize the stable installation of the driving wheel 31;
  • the assembly method in which both ends are fixed to the side plates 1221 can effectively distribute the load on the side plates 1211 on both sides of the wheel shaft 1311, and can withstand the transportation of large loads; 1311 can withstand large torque, but also reduces the requirements for the assembly of the whole machine.
  • the positioning component 123 includes a positioning washer 1231 and a fixing nut 1232 .
  • the positioning washer 1231 is coaxially provided with a through-hole structure, so that the positioning washer 1231 is conveniently installed on the two ends of the wheel shaft 1311, and is located on both sides of a set of side plates 1221 where the two side plates 1221 are far away from each other; the positioning washer 1231 is integrally formed There is a boss 1233, the boss 1233 is embedded in the waist groove 1223, and the flat shaft 1312 is pressed against the waist groove 1223 to realize the positioning and fixing of the flat shaft 1312; the fixing nut 1232 is sleeved on both ends of the wheel shaft 1311 , and threaded with the flat shaft 1312, further increasing the stability of the installation of the wheel shaft 1311.
  • the fixed frame 122 in the present invention can meet the installation and fixation of large-size wheels, so that the power assembly with high power is installed in the hub of the large-size wheels, thereby satisfying the demand for power of the electric trolley; in addition, large-size wheels are used It is bound to increase the height of the chassis of the electric trolley.
  • the present invention installs the universal wheel 32 and the drive wheel 31 in the fixed frame 122 through the rear portion of the support frame 121, so as to achieve the effect of adjusting the load-bearing center of gravity of the frame 1220, and avoid the occurrence of the chassis center of gravity. The situation of changing the large-size wheel and becoming higher occurs, which effectively improves the overall stability of the electric trolley.
  • a power assembly 2 and a brake assembly 4 are installed on the two driving wheels 3 .
  • the powertrain 2 is installed on the two driving wheels 3 and the two powertrains 2 are controlled simultaneously through the control assembly 5 to realize the simultaneous operation of the two driving wheels 3, improving the power performance of the driving wheels 3 and the stability of the vehicle body during operation
  • the two driving wheels 3 are equipped with a part of the brake assembly 4, which can realize the simultaneous braking of the two driving wheels 3, and can quickly stop without side slipping, making the trolley run safer.
  • the powertrain 2 includes the hub motor 21.
  • the type of the hub motor 21 adopts an outer rotor type, such as: a low-speed outer rotor motor; wherein, the hub motor 2 is composed of a wheel shaft 1311 (motor shaft), rotor core (not marked in the figure) and permanent magnet (not marked in the figure) and other components.
  • Both ends of the wheel shaft 1311 are formed with a flat shaft 1312, and the flat portion of the flat shaft 1312 is adapted to the size of the opening 1224, the flat shaft 1312 passes through the corresponding opening 1224 vertically, and the flat shaft 1312 is placed horizontally on the corresponding In the waist-shaped groove 1223 of the wheel shaft 1311, the two ends of the wheel shaft 1311 are locked and fixed with the corresponding side plate 1221 respectively, and the wheel shaft 1311 is connected to the hub of the driving wheel 31 through bearings, and the rotor core of the hub motor 21 is passed through the rotor bracket. It is fixedly connected with the side wall of the inner cavity of the drive wheel 31 , and drives the drive wheel 31 to rotate when the rotor of the in-wheel motor 21 is running.
  • the two ends of the wheel shaft 1311, the waist groove 1223 on the side plate 1221 and the positioning washer 1231 all adopt a waist structure, and the three are assembled with each other to greatly improve the firmness of the installation of the driving wheel 31 and the hub motor 21.
  • the present invention satisfies the installation and fixation of the large-size wheel 3 by installing the driving wheel 31 in the fixed frame 22, so as to facilitate the installation of a high-power powertrain in the hub of the large-size wheel 3, thereby Satisfy the demand for power of the electric trolley; through the assembly method of fixing both ends of the wheel shaft 1311 with the side plate 221, the load can be effectively distributed on the side plates 221 on both sides of the wheel 311, which can withstand the transportation of large loads, lifting The fastness and bearing capacity of the drive wheel 31 installation; through the flat shaft 312 at the two ends of the wheel shaft 1311, the waist-shaped groove 223 on the side plate 221 and the through-hole structure on the positioning washer 231 all adopt the waist-shaped structure, and the three are mutually assembled to greatly improve Improve the installation firmness between the drive wheel 31 and the fixed frame 22 . Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.
  • brake assembly is installed on the driving wheel 31, and all is equipped with brake assembly on each driving wheel 31, and realizes the braking operation to driving wheel 31;
  • Assembly 5 is installed on the push rod 13, and is positioned at the direction facing the user, and control assembly 5 is electrically connected with power supply device 6, braking device 7 by signal line, and control assembly 5 is provided with a plurality of driving levers ( Not marked in the figure), control knob (not marked in the figure) and switch (not marked in the figure), so as to realize the control of the hub motor, control the start and stop of the hub motor, and adjust the operating power of the hub motor to realize the driving of the electric trolley Speed adjustment, thereby improving the integration of electrical control in the electric trolley, which is convenient for users to operate.
  • the brake assembly 4 includes a first brake component 41 and a second brake component 42 .
  • the first braking component 41 is fixed in the cavity of the driving wheel 31 to realize the braking of the driving wheel 31, and the second braking component 42 is fixed on the push rod 13; wherein, the first braking component 41 is provided with two on the trolley, And correspond to two driving wheels 31 one by one;
  • the second brake component 42 includes two pull cables 423 and a signal line 425, and is connected with two first brake components 41 through two pull cables 423, and a second brake component 42 can control the first brake component 41 on the two driving wheels 31, so that the two driving wheels 31 can be braked at the same time, which can improve the timeliness and safety of braking, and can also improve the integration of the brake assembly 4, reducing
  • the number of components of the brake assembly 4 reduces the production cost; also by electrically connecting the second brake component 42 with the control assembly 6 through the signal line 425, so that when the brake assembly 4 is in the braking state, the control assembly 6 and the
  • the first brake component 41 includes a brake drum 411 , a brake cover 412 , a brake shoe 413 , a brake pad 414 , an adjustment rod 415 and an adjustment bracket 416 .
  • the brake drum 411 is coaxially fixed with the hub of the driving wheel 31, and a housing cavity 4111 is formed inside it, and the side of the housing cavity 4111 facing away from the hub motor 21 is open, and is used for installing brake shoes 413, brake pads 414 and other parts
  • the brake cover 412 is fixed on the side plate 1211 by bolts, and the open side of the accommodation cavity 4111 is closed.
  • the brake cover 412 is coaxially provided with a through hole structure (not marked in the figure) for the wheel shaft 1311 to pass through.
  • the side plate 1211 fixedly connected with the brake cover 412 is the side plate 1211 on the outside of the driving wheel 31; in addition, a support rod 4121 is fixed on the brake cover 412, and the support rod 4121 extends toward the interior of the accommodating cavity 4111, which can support the brake.
  • the shoe 413 plays a supporting and positioning role.
  • the brake shoe 413 is placed in the accommodation chamber 4111, in this embodiment, two brake shoes 413 are arranged in the accommodation chamber 4111, the shape of the two brake shoes 413
  • the structure is the same, all of which are semicircular, and the brake shoe 413 is formed with an arc surface matching the inner wall of the accommodation cavity 4111, the brake shoe 414 is fixed on the arc surface, and corresponds to the brake shoe 413 one by one;
  • a semicircular groove 4131 is provided at the abutting ends of the two brake shoes 413, and the two semicircular grooves 4131 are engaged with the support rod 4121 on the brake cover 412 to support the two brake shoes 4123;
  • the other end of the abutting brake shoe 413 clamps one end of the adjustment rod 415, and the rotation of the adjustment rod 415 can realize the expansion of the two brake shoes 413, so that the brake shoe 414 is in contact with the inner side wall of the accommodating cavity 4111,
  • the two ends of the brake shoes 413 are provided with connection holes 4132, and the opening positions, shapes and sizes of the connection holes 4132 on the two brake shoes 413 are all the same, the two brake shoes Elastic pieces are arranged between the sheets 413 and elastically connected by the elastic pieces.
  • the elastic member includes an extension spring 417; the two ends of the extension spring 417 are connected with the connecting holes 4132 at the same end of the two brake shoes 413 respectively, and two extension springs 417 are provided on the brake shoes 413, and The two ends abutting against the two brake shoes 413 correspond to each other.
  • one end of the regulating rod 415 is block-shaped, and clamped between two brake shoes 413, when the driving wheel 31 is in normal operation, one end of the regulating rod 415 is block-shaped vertically.
  • the two brake pads 414 are not in contact with the brake drum, and there is no braking force; when the driving wheel 31 brakes, the adjusting lever 415 rotates through the adjusting bracket 416, and its block-shaped end is set horizontally, so that the two The brake shoes 413 are stretched, and at this time, the two brake pads 414 are in contact with the brake drum 411 to generate a braking force to realize the braking of the driving wheel 31 .
  • the other end of the adjustment rod 415 passes through the brake cover 412 and extends outside the housing cavity 4111, and is fixedly connected to one end of the adjustment bracket 416, and the adjustment rod 415 is rotatably connected to the brake cover 412 through a bearing; wherein, the adjustment rod 415 is connected to the adjustment bracket One end of 416 fixed is fixed by engaging with each other through the latch structure, that is, one end of the adjustment rod 415 extending outside the accommodation chamber 4111 is provided with a latch (not marked in the figure), and is provided along the circumferential direction of the adjustment rod 415, and the adjustment bracket 416 is connected with the The position where the adjusting rod 415 is connected is provided with an insertion hole 4161, and the hole wall of the insertion hole 4161 is provided with a card slot (not marked in the figure), and the latch teeth and the slot engage with each other to achieve a fixed connection; in addition, the adjustment bracket 416
  • the structural principle of the hoop is also adopted, that is, one side of the insertion hole is opened along the
  • the other end of the adjustment bracket 416 is transmission connected with the first brake component 41 through the cable 423, and the cable 423 is provided with a line tube 426, the line tube 426 can be connected to the cable 423 plays a protective role.
  • One end of the drag cable 423 close to the adjustment bracket 416 is fixed with a stopper 4261, and the stopper 4261 is fixed on the side plate 1211.
  • the first return spring 418 is also sleeved on the drag cable 423, and the first reset The two ends of the spring 418 are pressed against the stopper 4261 and the adjustment bracket 416 respectively; The first return spring 418 is in a compressed state. After braking, the first return spring 418 resets the adjusting bracket 416 through its own elastic potential energy, thereby satisfying the multi-time and continuity of braking.
  • the second brake component 42 further includes a mounting sleeve 421 , a brake handle 422 , a brake switch 424 and a signal wire 425 .
  • the installation sleeve 421 is fixed on the push rod 13 using the principle of the hoop structure, that is, an opening is opened on the installation sleeve 421, and ear plates 4211 are integrally formed on both sides of the opening, and the two ear plates 4211 are fixedly connected by bolts, so that the installation The sleeve 421 is hugged tightly on the push rod 13; the installation sleeve 421 is vertically pierced with a rotating shaft 427, the brake handle 422 is connected to the installation sleeve 421 through the rotation shaft 427, and the connection between the brake handle 422 and the rotating shaft 427 is sleeved with a second shaft.
  • the second return spring 428 after the user releases the brake handle 422, the second return spring 428 returns
  • the brake handle 422 is provided with two engaging grooves 4221, and the two engaging grooves 4221 are provided on the end of the brake handle 422 close to the installation sleeve 421, and are located on both sides of the brake handle 4221.
  • One clamping groove 4221 corresponds to two pull cables 423 one by one, and one end of the pull cable 423 connected to the brake handle 422 is formed with a clamping block 4231, and the clamping block 4231 and the clamping groove 4221 are embedded and matched to realize pulling.
  • the clamping connection between the cable 423 and the brake handle 422; the abutment of the installation sleeve 421 and the brake handle 422 is provided with a slot 4212 communicating with the clamping groove 4221, and the slot 4212 corresponds to the two clamping grooves 4221, and the cable 423 and wire tube 426 are placed in the slot 4212, wherein the slot 4212 on the mounting sleeve 421 snaps one end of the wire tube 426 into the slot 4212, and the wire tube 426 can be realized through the slot 4212 and the stopper 4261. Fixed at both ends.
  • the brake switch 424 is fixed on the installation sleeve 421, and the contacts of the brake switch 424 are connected to the brake handle 422, and are electrically connected to the control assembly 6 through the signal line 425; wherein, the brake handle 422 A touch plate 4222 is vertically fixed on the top, and the contacts of the brake switch 424 correspond to the touch plate 4222 .
  • Figure 11 shows the circuit diagram between the control assembly 5, the brake switch 424, the in-wheel motor 21 and the power supply unit 6.
  • the in-wheel motor 21 stops operation, to avoid the simultaneous operation of the brake assembly 4 and the hub motor 21, thereby improving the braking performance and braking safety of the brake assembly 4; when the brake assembly 4 does not need to brake, the brake handle 422
  • the touch plate 4222 abuts against the contact of the brake switch 424 and makes the brake switch 424 in a closed state, so that the circuit connection in the trolley can work normally, and the control connection between the control assembly 5 and the in-wheel motor 21 is restored.
  • control assembly 5 is installed on the push rod 13, and is located in the direction facing the user, the control assembly 5 is electrically connected to the power supply device 6 and the brake switch 424 through the signal line 425, and the control assembly 5
  • a plurality of levers (not marked in the figure), control knobs (not marked in the figure) and switches (not marked in the figure) are arranged on the component 5, so as to realize the control of the hub motor 21 and control the start and stop of the hub motor 21, And adjust the operating power of the wheel hub motor 21 to realize the adjustment of the traveling speed of the trolley, thereby improving the integration of the electronic control of the electrical appliances in the trolley, which is convenient for the user to operate.
  • the power supply device 6 includes a battery case 61 , a battery pack cavity 62 , a battery pack 63 and a power cord (not shown).
  • the battery box 61 is fixedly connected with the push rod 13, and the battery pack cavity 62 is opened in the battery box 61. It should be noted that there are two battery pack cavity 62 in the battery box 61; the battery pack 63 is detachably mounted on the The battery pack cavity 62 is electrically connected to the battery pack 61 and the in-wheel motor 21 through a power cord, thereby supplying power to the in-wheel motor 21 and the control assembly 5 .
  • the battery box 61 is located at the rear of the vehicle body 11 and below the push rod 13.
  • the counterweight of the vehicle body weight is set to 50% of the front part and 50% of the rear part, thereby
  • the center of gravity of the trolley is located at the middle bottom of the whole body, and when the trolley is pushed or lifted, the center of gravity of the vehicle body is stable, not easy to topple over, safe to use, and easy to operate.
  • the user turns the brake handle 422, and the brake switch 424 is disconnected, so that the power supply unit 6 stops supplying power to the hub motor 21, and the hub motor 21 stops running; meanwhile, the brake handle 422 will pull the drag cable 423, so that The adjustment bracket 416 rotates along the axial direction of the adjustment rod 415, thereby driving the adjustment rod 415 to rotate, and the end of the adjustment rod 415 clamped between the two brake shoes 413 spreads the two brake shoes 413, so that it is fixed on the brake shoe
  • the brake pad 414 on the sheet 413 abuts against the inner sidewall of the brake drum 411.
  • the brake drum 411 Since the position of the brake pad 413 relative to the trolley is basically unchanged, the brake drum 411 is in a rotating state, and the frictional force generated between the brake pad 413 and the brake drum 411 can be Reduce the rotating speed of driving wheel 31, and then realize the braking of trolley.
  • the user releases the brake handle 422, the brake switch 424 is closed again, and the electrical connection between the control assembly 5, the power supply device 6, and the wheel hub motor 21 is restored, and the first return spring 418 and the second return spring 428 respectively resets the brake handle 422 and the adjustment bracket 416 to their original positions, so that the brake pads 414 in the brake drum 411 are separated from the inner sidewall of the brake drum 411 , so that the driving wheel 31 can operate normally.
  • the present invention electrically connects the second brake component 42 to the control assembly 5 through the signal line 425, so that when the brake assembly 4 is in the braking state, the control between the control assembly 5 and the in-wheel motor 21 The connection is disconnected, and then the braking performance and braking safety of the brake assembly 4 can be effectively improved; the first braking component 41 on the two driving wheels 31 can be controlled by a second braking component 42, so that the two driving wheels 31 can be simultaneously Braking can improve the timeliness and safety of braking, and can also improve the integration of the brake assembly 4, reduce the number of parts of the brake assembly 4, and reduce production costs; by installing hub motors on the two drive wheels 31 21, and control the two hub motors 21 at the same time through the control assembly 5, which can realize the simultaneous operation of the two drive wheels 31, improve the power performance of the drive wheels 31 and the stability of the vehicle body in operation; both drive wheels 31 are installed
  • the first braking component 41 can realize the simultaneous braking of the two driving wheels 31, and can quickly stop without skidding, so that the trolley can run more safely.
  • the drive wheel 31 is connected to the frame 12 through a bearing seat 701, and the bearing seat 701 is fixedly installed on the bottom of the frame 12.
  • the brake disc 301 is fixedly arranged on one side of the drive wheel 31, and the drive wheel 31 is fixedly connected with the bearing seat 701 through a rotating shaft 702.
  • the drive wheel 31 and the brake disc 301 Both are installed on the rotating shaft 702 , and the driving wheel 31 and the brake disc 301 can rotate synchronously around the rotating shaft 702 .
  • a flat groove 7021 is provided on the end of the rotating shaft 702 connected with the bearing seat 701, and the end of the rotating shaft 702 provided with the flat groove 7021 is extended into the In the bearing seat 701, the rotating shaft 702 is fixedly connected to the bearing seat 701 through a pressing plate 7012, and the pressing plate 7012 is located at the flat groove 2011.
  • This structural fixing method is simple and effective, and at the same time limits the The rotation and the movement in the left and right directions prevent the in-wheel motor 21 from shaking and falling off in the bearing seat 701.
  • the brake assembly 7 is installed on the bearing seat 701, specifically, the brake assembly 7 includes a first driving member 71 and a brake pad 72 , the first driving member 71 is fixedly connected to the bearing seat 701 , and the brake pad 72 is installed on the first driving member 71 .
  • the first driving member 71 is, for example, set as a pump body.
  • the first driving member 71 includes a housing 711 and a piston 712.
  • the piston 712 is arranged in the housing 711 and connected to the housing.
  • An oil storage chamber 703 is formed between the shells 711, and an oil inlet 7111 is provided on the housing 711, and the oil inlet 7111 communicates with the oil storage chamber 703, and the oil inlet 7111 is connected with a hydraulic pressure Through the oil pipe 704 , the hydraulic oil enters the oil storage chamber 703 of the casing 711 along the oil inlet 7111 to push the piston 712 to move toward the brake disc 301 .
  • the brake pad 72 includes a first brake pad 721 and a second brake pad 722, the first brake pad 721 is fixedly connected to the piston 712 , the second brake pad 722 is fixedly connected to the housing 711 of the first driving member 71, and the brake disc 301 is located between the first brake pad 721 and the second brake pad 722, specifically , there is a gap between the first brake pad 721 and the second brake pad 722, the edge portion of the brake disc 301 is located in the gap, when the hydraulic oil enters the casing along the oil inlet 7111 In the oil storage chamber 703 of the body 711, thereby pushing the piston 712, thereby pushing the first brake pad 721, so that the first brake pad 721 gradually approaches the second brake pad 722, thereby contacting and squeezing Press the brake disc 301 to generate friction, because the brake disc 301 and the driving wheel 31 are fixed together, so the purpose of braking is achieved.
  • the operating assembly 73 is also installed on the frame 12, the operating assembly 73 includes a second driving member 731 and a brake handle 732, specifically Yes, the second driving member 731 is installed on the frame 12, and the second driving member 731 is connected to the first driving member 71 through the hydraulic oil pipe 704.
  • the The second driving member 731 is, for example, set as a pump body.
  • the second driving member 731 includes an oil shell 7311, and an oil pipe screw 7112 is arranged inside the oil shell 7311.
  • An oil storage chamber 703 is formed, and the oil storage chamber 703 communicates with the oil storage chamber 703 of the first driving member 71 through the hydraulic oil pipe 704 , and the brake handle 732 is installed on the second driving member 731
  • the oil shell 7311 is used to push the oil pipe screw 7112.
  • the brake handle 732 and the oil shell 7311 are rotationally connected by a rotating shaft 705, and a third Return spring 706, when the brake handle 732 is pulled, the third return spring 706 is compressed, when the brake handle 732 is released, the brake is driven under the elastic force of the third return spring 706 The handle 732 returns to its original position.
  • the frame 12 includes a push rod 13, the operating assembly 73 is installed on the push rod 13, and the push rod 13 A control assembly 5 (control box) is also installed, and the control assembly 5 is used to control the start and stop of the cart.
  • a switch 7313 is arranged at the bottom of the second drive member 731, so that The switch 7313 is connected with the control assembly 5 on the frame 12 through a signal line 7314 .
  • the frame 12 is also provided with a vehicle bucket 11, and a battery device 6 is installed on one side of the vehicle bucket 11 for the purpose of
  • the cart provides a power source, long press the switch of the control assembly 5, the hub motor 21 starts, and the cart runs; when the switch of the control assembly 5 is released, the hub motor 21 is closed, and the cart stops running.
  • the brake handle 732 includes a grip part 7321, a brake part 7322 and a switch trigger part 7323, and the grip part 7321 is used for the operator to hold Hold, the brake part 7322 and the switch trigger part 7323 are located at the same end of the grip part 7321, and there is an angle between the brake part 7322 and the switch trigger part 7323, the brake part 7322 uses The oil pipe screw 7112 in the second driving member 731 is pushed to move, and the switch trigger part 7323 is used to control the on-off of the switch 7313 .
  • the braking process of the cart is that the operator pulls the brake handle 42 through the grip part 7321, so that the brake part 7322 and the second drive
  • the oil pipe screw 7112 in the driving part 731 contacts and pushes the oil pipe screw 7112 to move forward to compress the oil storage chamber 703 in the second driving part 731, so that the hydraulic oil in the oil storage chamber 703 Enter the oil storage chamber 703 of the first driving member 71 along the hydraulic oil pipe 704, push the piston 712 under the pressure of the hydraulic oil, and then push the first brake pad 721, so that the The first brake pad 721 gradually approaches the second brake pad 722, so as to contact and squeeze the brake disc 301 to achieve the purpose of braking the in-wheel motor 21.
  • the switch trigger part 7323 of the brake handle 42 is separated from the switch 7313, so that the switch 7313 is disconnected, so that it cannot send signals to the
  • the control assembly 5 transmits signals to avoid that the hub motor is still in the driving state when braking, and at this time the hub motor is powered off and loses its rotational power.
  • the bearing housings 701 are symmetrically installed on both sides of the bottom of the frame 12, and the bearing housings 701 on both sides are respectively installed with
  • the driving wheel 31 and the brake assembly 30, and the second driving member 731 in the operating assembly 73 are respectively connected to the first driving member 71 in the brake assembly 7 on both sides through the two hydraulic oil pipes 704 , so as to achieve one second driving member 731 to control the braking function of the two hub motors 21, making it more convenient to operate, and the two wheels brake at the same time, which can be quickly stopped without sideslip Phenomenon, make the cart run more safely.
  • the braking structure of the trolley is mechanically driven, which can ensure safety and avoid brake failure caused by insufficient power of the electric braking device.
  • the trolley may slip out of control, so as to avoid damage to property and personal safety.
  • an operating component is used to simultaneously control the two brake components to make it more convenient to operate, and the two wheels are braked at the same time, which can realize rapid braking and stop, and can avoid sideslip phenomenon during braking, allowing the cart to run The process is safer.
  • a switch is also provided to form a linkage with the braking process of the trolley. When braking, the control function of the control box on the opening or closing of the trolley is temporarily disconnected, so as to avoid accidental touches and cause danger.
  • the control assembly includes a steering control device, and the steering control device is electrically connected to the power assembly in the driving wheels on both sides of the vehicle body assembly, Used to control the steering of the driving wheels on both sides of the vehicle body assembly, the steering control device includes: a bracket with a control board installed therein; a steering switch installed on the bracket and connected to the control board , the steering switch is used to control the steering of the driving wheels on both sides of the vehicle body assembly. That is, the first in-wheel motor 311 and the second in-wheel motor 312 in the driving wheels 31 on both sides of the vehicle body assembly are connected to the steering control device to control the first in-wheel motor 211 and the second in-wheel motor The steering of the motor 212. It should also be noted that a power supply device is installed on the frame 12 to provide a power source for the trolley.
  • the steering control device 83 is installed on the push rod 102 to control the first hub motor 211 and the second hub motor 212.
  • the steering control device 83 includes a bracket 831, a steering handle 832, a main switch 833, a control board 834 and a steering switch 835, the bracket 831 is fixedly installed on the push rod 102, and the control board 834 Installed inside the bracket 831, the main switch 833 is also installed inside the bracket 831, and the main switch 833 is electrically connected to the control panel 834, and the steering handle 832 is installed on the bracket 831 Above, the steering handle 832 is used to control the main switch 833, the steering switch 835 is installed on the bracket 831, and is electrically connected to the control board 834, and the steering switch 835 is used to control the second The steering of the hub motor 211 and the second hub motor 212 controls the steering of the cart.
  • the steering handle 832 is rotationally connected to the bracket 831 through a rotating shaft 8321, that is, the rotating shaft 8321 is rotationally mounted on the bracket 831, so The steering handle 832 is installed on the rotating shaft 8321, and the fourth return spring 8322 is sleeved on the rotating shaft 8321.
  • the steering handle 832 In the initial state, the steering handle 832 is in the state of pressing the main switch 833, and the Move the steering handle 832 so that the steering handle 832 is away from the main switch 833 to release the main switch 833.
  • the steering handle 832 is released, under the action of the fourth return spring 8322, The steering handle 832 returns to the original position, and the main switch 833 is pressed again.
  • the control panel 834 is set with three left-turning gear positions "L", middle gear position "0" and right-turning gear position "R". different gear lines, and are controlled and switched through the steering switch 835.
  • the bracket 831 is provided with a pressing plate 836, and the pressing plate 836 is fixedly connected with the bracket 831 to turn the steering.
  • the switch 835 is fixedly installed on the bracket 831 , and it should be noted that the pressing plate 836 is fixedly connected with the bracket 831 by welding or buckling.
  • the control board 834 is further provided with at least one indicator light, and the indicator light is installed on the pressure plate 836 to indicate at least the current gear state of the trolley.
  • the number of the indicator lights is set to three, which are respectively the first indicator light 8371, the second indicator light 8372 and the third indicator light 8373
  • the first indicator light 8371, the second indicator light 8372 and the third indicator light 8373 respectively correspond to the left-turn gear “L”, the middle gear “0” and the right-turn gear “R” three different gears, that is, when the cart is in one of the left-hand gear “L”, the middle gear "0” and the right-hand gear “R” position, the indicator light corresponding to the gear position is on, and the other indicator lights are off.
  • the number of the indicator lights can also be set as one indicator light that can present different colors, for example, three different colors of red, green and yellow, each of which corresponds to the left
  • the indicator light presents the color corresponding to the gear to remind the user.
  • a control assembly 5 (control box) is also installed on the bracket 831, and the control assembly 5 communicates with the The steering control device 83 is electrically connected, when the steering switch 835 is controlled to set the three different positions of the left-turn gear “L", the middle gear “0” and the right-turn gear “R” in the control panel 834 After one of the gear circuits is connected, the entire drive circuit needs to be connected by pressing the control switch on the control assembly 5, so that the first hub motor 211 and the second hub motor 212 Turning in the same or opposite direction allows the cart to move forward normally or to turn.
  • the steering switch 835 is, for example, set as a ship-shaped switch, and the ship-shaped switch is provided with three different types of "L", "0" and “R". mark, respectively corresponding to the three different gear lines of the left-turn gear “L”, the middle gear “0” and the right-turn gear “R” set in the control panel 834, and the mark "L”
  • the mark “R” is located on both sides of the ship-type switch, and the mark "0" is located in the middle of the ship-type switch.
  • the steering switch 835 is located at the position marked "0", and the steering handle 832 presses the main switch 833 under the elastic force of the fourth return spring 8322, so that the main switch 833 is in a pressed state.
  • a signal line 8381 transmits a signal to the control assembly 5.
  • the main switch 833 is turned on with a "0" line, and a signal is transmitted to the control assembly 5 through the second signal line 8382.
  • the "L" circuit of the right-turning gear and the "R" circuit of the right-turn gear are both in the disconnected state.
  • the first wheel hub motor 211 will rotate forward at a set speed at a constant speed, while the second wheel hub motor 212 will move forward at the same speed at a constant speed.
  • the first hub motor 211 rotates in the opposite direction to achieve the purpose of turning the cart to the left on the spot.
  • the second hub motor 212 rotates forward at a set speed at a constant speed, while the first hub motor 211 rotates forward at a constant speed at the same speed.
  • the second wheel hub motor 212 rotates in the opposite direction to achieve the purpose of turning the cart to the right in situ.
  • the present invention proposes a free-steering trolley, which respectively controls the steering of the first hub motor and the second hub motor at the bottom of the frame through the control assembly, when the first hub motor and the second hub motor rotate in the same direction , the cart is in the forward or backward state, when the first in-wheel motor and the second in-wheel motor rotate in opposite directions, the cart is in the state of turning left or right, and the first The rotational speeds of the in-wheel motor and the second in-wheel motor are the same, so that when the cart needs to turn, the control assembly controls the first in-wheel motor and the second in-wheel motor to rotate in opposite directions at the same rotational speed, so that It makes the cart achieve the purpose of turning in place, avoiding the need for a lot of push when you want to turn when the cart is loaded with heavy objects, which is easy to make people feel tired, and in a relatively narrow space, rely on human power to exert force laterally It is used to push the cart to turn.

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  • Mechanical Engineering (AREA)
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Abstract

一种手推车,包括:车体总成;驱动轮,连接在车体总成上;动力总成(2),安装在驱动轮内;刹车总成(4),设置在驱动轮上;控制总成(5),设置在所述车体总成上,与动力总成和刹车总成电连接;电源装置(6),设置在车体总成上,并与动力总成、刹车总成和控制总成电连接;其中,控制总成包括转向控制装置(83),转向控制装置与车体总成两侧的驱动轮内的动力总成电连接,用于控制车体总成两侧的驱动轮的转向,转向控制装置包括:支架(831),其内安装有控制板;转向开关(835),安装在支架上,并与控制板(834)连接,转向开关控制车体总成两侧的驱动轮的转向。推车能够在狭小的空间下或装满重物的情况下快速且便捷的实现转向功能,且推车的转向过程便捷且省力。

Description

一种手推车 技术领域
本发明涉及园林工具技术领域,特别是涉及一种手推车。
背景技术
手推车是在生活中使用的比较频繁且不可缺少的工具,其主要是用于短距离的运送货物;在现代生活中,我们需要用到各式各样的手推车,例如宾馆里服务人员用来乘装垃圾或者住客换洗的床单、被罩及杂物,又如建筑工地上工人用来乘装黄沙、水泥、砖块等等,这些手推车极大地方便了我们的生活。
现阶段,由于电动化发展趋势,各种手推车升级为电动手推车,从而减轻人们的工作强度,其自走驱动系统通常采用轮毂自走电机;市面上的电动手推车的驱动电机大多采用单边轴的固定方式,所有的承载都集中单边轴上,而且单边轴承受的是扭矩,如果是大的负载,对电机输出轴及整机装配要求都非常高;此外,市面上的电动滑板车以及部分平板车采用的驱动电机轴为双边轴,但电机以及安装轮体的固定支架位于整个承载底盘的下面,如果轮子尺寸大的话,承载底盘会变高,造成承载重心变高,整体稳定性不好。
以及,市面上的手推车通常由车斗、机架、推杆和万向轮等部件组成,但市面上一部分现有的手推车无刹车机构;该种手推车运用在生活中的一些场景会发生危险,例如推车乘装重物走在有坡度的路面时,当使用人员力竭或不小心摔跤,或者电池包电量不足又或者碰到熟人在聊天过程中无意松开了推车,推车可能会倒溜失控,对财产及人身安全造成伤害。
此外,市面上现有的另一部分手推车含有刹车机构,但当传统手推车的刹车机构运用到电动手推车时,刹车机构与驱动装置之间无控制装置调控,可能会导致刹车机构与驱动装置同时在运转,大大的降低了刹车机构的制动性能,严重时,可能会导致刹车机构失效,出现严重的事故,对财产及人身安全造成伤害。
另外了,市场上的这些推车基本没有可以控制转向的功能,只能靠人力侧向发力,用以推动万向轮转动,达到转向的目的;但是当推车乘装重物时,想要转向就需要很大力推动,容易让人感到疲惫;又或者在比较狭小点的空间,靠人力侧向发力用以推动推车转向,力度有时把控不准确,推车不能顺利的转向至所需要的角度,而需要反复调整耗时耗力。
综上所述,现有技术中的手推车存在待改进之处。
发明内容
鉴于以上所述现有技术的缺点,本发明的目的在于提供一种手推车,包括:
车体总成;
驱动轮,通过轮轴连接在所述车体总成上,所述驱动轮能够绕轮轴转动;
动力总成,安装在所述驱动轮的轮毂内,驱动所述驱动轮转动;
刹车总成,部分设置在所述驱动轮上,实现对所述驱动轮的制动;
控制总成,设置在所述车体总成上,并与所述动力总成和所述刹车总成电连接;
电源装置,设置在所述车体总成上,并与所述动力总成、所述刹车总成和所述控制总成电连接;
其中,所述控制总成包括转向控制装置,所述转向控制装置与所述车体总成两侧的驱动轮内的动力总成电连接,用于控制所述车体总成两侧的驱动轮的转向,所述转向控制装置包括:支架,其内安装有控制板;转向开关,安装在所述支架上,并与所述控制板连接,所述转向开关用于控制所述车体总成两侧的驱动轮的转向。
在本发明的一个实施例中,所述转向控制装置还包括:
转向手柄,通过一转轴与所述支架连接;
主开关,安装在所述支架内部,连接所述控制板,并通过所述转向手柄控制;
复位弹簧,套设在所述转轴上;
压板,与所述支架固定连接,以固定所述转向开关。
在本发明的一个实施例中,所述控制板内设定有左转档位、中间档位和右转档位三个不同的档位,并通过所述转向开关进行控制。
在本发明的一个实施例中,所述控制板上还设置有至少一个指示灯,且所述指示灯用于指示所述转向开关的状态。
在本发明的一个实施例中,所述控制板上还设置有三个指示灯,分别对应所述左转档位、所述中间档位和所述右转档位三个不同的档位。
在本发明的一个实施例中,还包括压板,所述压板通过焊接或卡扣的方式与所述支架固定连接在一起,以固定所述转向开关,且所述指示灯安装在所述压板上。
在本发明的一个实施例中,所述车体总成的机架上还安装有控制盒,所述控制盒通过信号线与所述转向控制装置电连接。
在本发明的一个实施例中,所述动力总成包括轮毂电机,置于所述驱动轮的轮毂内。
在本发明的一个实施例中,所述刹车总成包括:
第一驱动件,所述第一驱动件与所述车体总成的机架固定连接;
刹车片,所述刹车片与所述第一驱动件连接;
操作组件,安装在所述机架上,包括第二驱动件和刹车手柄,所述第二驱动件与所述第一驱动件之间通过液压油管连接,所述刹车手柄安装在所述第二驱动件上,刹车时,所述刹车手柄推动第二驱动件内的液压油沿着所述液压油管挤压至所述第一驱动件内,从而推动所述刹车片,以使所述刹车片接触并挤压所述刹车盘,所述刹车盘与所述驱动轮的轮毂固定连接。
在本发明的一个实施例中,所述刹车总成包括:
第一刹车部件,固定在所述驱动轮处,实现对所述驱动轮的制动;
第二刹车部件,固定在所述车体总成的推杆上,并通过拉索与所述第一刹车部件连接,且所述第二刹车部件通过信号线与所述控制装置电连接;
在所述刹车总成处于制动状态时,所述控制装置和所述动力总成之间的控制连接断开。
在本发明的一个实施例中,所述电源装置包括:
电池盒,固定在所述车体总成的推杆上;
电池包型腔,成形在所述电池盒内;
电池包,可拆卸固定在所述电池包型腔内;
电源线,电连接所述电池包和所述动力总成中的轮毂电机。
在本发明的一个实施例中,所述车体总成包括机架和车斗,所述车斗固定在所述机架上,所述机架包括:
支撑架,固定在所述车斗的底部,并承载所述车斗;
固定框架,与所述支撑架固定连接,用于安装所述驱动轮;
所述驱动轮两侧的轮轴均与所述固定框架固定连接。
本发明还提出一种手推车,包括:
机架,所述机架底部的两侧的驱动轮内分别安装第一轮毂电机和第二轮毂电机;
电源装置,安装在所述机架上;
控制总成,包括转向控制装置,所述转向控制装置安装在所述机架上,且与所述第一轮毂电机和所述第二轮毂电机电连接,用于控制所述第一轮毂电机和所述第二轮毂电机的转向,所述转向控制装置包括:支架,其内安装有控制板;转向开关,安装在所述支架上,并与所述控制板连接,所述转向开关用于控制所述第一轮毂电机和所述第二轮毂电机的转向;
其中,所述推车设定有左转档位、中间档位和右转档位三个不同的档位,并通过所述转向开关进行控制,当所述推车处于左转档位时,所述第一轮毂电机以所设定速度往前匀速转 动,而所述第二轮毂电机则以相同速度匀速向与所述第一轮毂电机相反的方向转动;当所述推车处于中间档位时,所述第一轮毂电机和所述第二轮毂电机向相同方向转动;当所述推车处于右转档位时,所述第二轮毂电机以所设定速度往前匀速转动,而所述第一轮毂电机则以相同速度匀速向与所述第二轮毂电机相反的方向转动。
在本发明的一个实施例中,当推车在正常运行状态行驶过程中突然需要转向时,将所述转向开关按压至左转档位或右转档位后,此时所述推车上的控制盒先使所述第一轮毂电机和所述第二轮毂电机断电并停止运行,待所述推车完全停止时,再执行转向功能。
在本发明的一个实施例中,所述机架的底部两侧分别对称安装有轴承座,两侧的轴承座上分别安装有所述驱动轮和所述刹车组件,且所述操作组件通过两条所述液压油管分别连接两侧所述刹车组件中的第一驱动件。
在本发明的一个实施例中,所述驱动轮通过所述转轴与所述轴承座固定连接,所述轮毂电机和所述刹车盘安装在所述转轴上。
在本发明的一个实施例中,所述转轴与所述轴承座连接的一端上设有平槽,并通过压板将所述转轴与所述轴承座固定连接,所述压板位于所述平槽处。
在本发明的一个实施例中,所述第一驱动件包括壳体和设置在所述壳体内的活塞,所述壳体上设置有一进油口,所述进油口连接所述液压油管,液压油沿所述进油口进入所述壳体内,以推动所述活塞。
在本发明的一个实施例中,所述刹车片包括第一刹车片和第二刹车片,所述第一刹车片与所述活塞固定连接,所述第二刹车片与所述壳体固定连接。
在本发明的一个实施例中,所述刹车盘位于所述第一刹车片和所述第二刹车片之间。
在本发明的一个实施例中,所述第二驱动件包括油壳,所述油管螺丝位于所述油壳内,与所述油壳之间形成储油腔室,所述储油腔室通过所述液压油管与所述第一驱动件的储油腔室连通。
在本发明的一个实施例中,所述刹车手柄与所述油壳通过转动轴转动连接,且所述转动轴上套设有复位弹簧。
在本发明的一个实施例中,所述第二驱动件的底部设置有开关,所述开关通过信号线与所述机架上的控制盒连接。
在本发明的一个实施例中,所述刹车手柄包括握持部、刹车部和开关触发部,所述刹车部和所述开关触发部位于所述握持部的同一端,且所述刹车部和所述开关触发部存在夹角。
在本发明的一个实施例中,所述刹车部用于推动所述第二驱动件内的油管螺丝移动,所 述开关触发部用于控制所述开关的通断。
在本发明的一个实施例中,所述机架还包括推杆,所述控制盒和所述操作组件均安装在所述推杆上。
在本发明的一个实施例中,所述第一刹车部件包括:
刹车鼓,与所述驱动轮的轮毂同轴固定,并形成一容纳腔;
刹车盖,与所述车体总成固定连接,并封闭所述容纳腔的敞口;
至少两个刹车蹄片,与所述刹车盖可拆卸固定连接,且两个所述刹车蹄片之间设置有弹性件,并通过所述弹性件弹性连接;
至少两个刹车片,贴合在所述刹车蹄片的表面,并与所述容纳腔的内侧壁对应;
调节杆,一端夹持在两个所述刹车蹄片之间,另一端穿过所述刹车盖并与所述刹车盖转动连接;
调节支架,一端与所述调节杆固定连接,另一端通过拉索与所述第二刹车部件传动连接。
在本发明的一个实施例中,所述弹性件包括:
拉簧,其两端分别与两个所述刹车蹄片上同一端的连接孔勾连。
在本发明的一个实施例中,与所述调节支架连接的拉索上套设有一线管,所述线管靠近所述调节支架的一端固定有挡块,且挡块与所述车体总成中的机架固定。
在本发明的一个实施例中,与所述调节支架连接的拉索上套设有第一复位弹簧,并位于所述挡块和所述调节支架之间。
在本发明的一个实施例中,所述第二刹车部件包括:
安装套,套设在所述车体总成中的推杆上;
刹车手柄,通过转轴与所述安装套转动连接;
拉索,一端与所述刹车手柄固定连接,另一端与所述调节支架固定连接;
刹车开关,固定在所述安装套上,并与所述刹车手柄联动,实现所述刹车开关闭合或者断开;
信号线,电连接所述刹车开关和所述控制装置。
在本发明的一个实施例中,所述刹车手柄与所述安装套连接的转轴上套设有第二复位弹簧。
在本发明的一个实施例中,所述拉索在所述刹车手柄设置有两个,并与所述第一刹车部件和所述第二刹车部件一一对应。
在本发明的一个实施例中,所述机架的底部还固定有万向轮。
在本发明的一个实施例中,所述驱动轮的轮毂内形成有一腔体,用于安装所述动力总成和所述第一刹车部件。
在本发明的一个实施例中,所述动力总成包括:
轮毂电机,安装在所述驱动轮上的所述腔体内;
所述轮毂电机中轮轴的两端穿设在所述机架的腰型槽处,并与所述机架固定连接;
所述轮毂电机的转子铁芯与所述腔体的侧壁固定连接;
所述轮毂电机的轮轴与所述机架的连接处安装有定位组件。
在本发明的一个实施例中,所述定位组件包括:
定位垫圈,同轴穿设在所述轮毂电机的轮轴的两端,且所述定位垫圈上成形有一凸台,所述凸台嵌入所述机架的腰型槽内;
固定螺母,与所述轮毂电机的轮轴的两端螺纹连接。
在本发明的一个实施例中,所述固定框架包括:
两组侧板,两组所述侧板与所述支撑架的两侧固定连接,所述轮轴的两端与对应的所述侧板固定连接;
连接杆,依次连接两组所述侧板;
两组所述侧板与所述连接杆形成一框形结构,所述连接杆位于所述支撑架的下方。
在本发明的一个实施例中,每组所述侧板至少包括两个侧板,且两个所述侧板位于一个所述驱动轮轴向的两侧。
在本发明的一个实施例中,每个所述侧板上均开设有腰型槽,且每个所述侧板的边缘位置开设有开口,所述开口与所述腰型槽连通;所述轮轴通过所述开口置于所述腰型槽内,并与所述腰型槽嵌设配合。
在本发明的一个实施例中,所述腰型槽的长度大于所述开口的口径。
在本发明的一个实施例中,所述轮轴的两端成形有扁平轴,所述扁平轴上设置有定位组件,用于固定连接所述扁平轴和所述侧板。
在本发明的一个实施例中,所述扁平轴横截面的长度大于所述开口的口径、且小于所述腰型槽的长度。
在本发明的一个实施例中,所述定位组件包括:
定位垫圈,同轴穿设在所述轮轴的两端,且所述定位垫圈上成形有一凸台,所述凸台嵌入所述腰型槽内,并将所述扁平轴抵紧在所述腰型槽内;
固定螺母,与所述轮轴的两端螺纹连接。
在本发明的一个实施例中,所述连接杆设置有两个,两个所述连接杆位于所述驱动轮垂直轴向的两侧,并分别与多个侧板的两端连接。
在本发明的一个实施例中,所述支撑架包括:
横板,与所述车斗的底部固定连接;
纵杆,固定在所述横板的两端。
在本发明的一个实施例中,所述车斗的底部开设有凹槽,所述纵杆置于所述凹槽内。
本发明提出的一种手推车,通过将驱动轮安装在固定框架内,从而满足大尺寸车轮的安装与固定,以便于将大功率的动力装置安装在大尺寸车轮的轮毂内,从而满足电动手推车对动力的需求。
本发明提出的一种手推车,通过将轮轴的两端均与侧板固定的装配方式,可有效的将负载分散在轮轴两个侧的侧板上,可承受大负载的运输,提升驱动轮安装的牢固性与承载性能。
本发明提出的一种手推车,通过支撑架的后部安装万向轮、固定框架内安装驱动轮,从而达到调节承载支架的承载重心的作用,避免出现底盘重心由于更换大尺寸车轮而变高的情况发生,有效的提升了电动手推车整体的稳定性。
本发明提出的一种手推车,通过将第二刹车部件通过信号线与控制装置电连接,从而使得刹车总成处于制动状态时,控制装置和动力总成之间的控制连接断开,进而可有效提升刹车总成制动性能和制动安全。
本发明提出的一种手推车,通过一个第二刹车部件可控制两个驱动轮上的第一刹车部件,可使得两个驱动轮同时制动,即可提升制动及时性与安全性,还可提升刹车总成的集成化,减少刹车总成的零部件数量,降低生产成本。
本发明提出的一种手推车,通过两个驱动轮上均安装轮毂电机,并通过控制装置同时控制两个轮毂电机,可实现两个驱动轮的同时运转,提升驱动轮的动力性能和车身运行中的稳定性;两个驱动轮上均安装第一刹车部件,可实现两个驱动轮的同时制动,可迅速刹停,且不会发生侧滑现象,让手推车运行更安全。
本发明提出的一种手推车,通过在机架底部的两侧分别安装刹车组件,以避免推车乘装重物走在有坡度的路面时,使用人员力竭或不小心摔跤或者电池包电量不足等情况下,推车可能会倒溜失控,从而避免对财产及人身安全造成伤害。
本发明提出的一种手推车,通过一个操作组件去同时控制两个刹车组件,以使得其操作起来更加方便,而且两个轮子同时刹车,可实现迅速刹停,且能够避免在刹车时发生侧滑现象,让推车运行过程更安全。
本发明提出的一种手推车,通过设置开关与所述推车的刹车过程形成联动,在刹车时,暂时断开控制盒对推车开启或关闭的控制作用,以避免发生误触,从而造成危险。
本发明提出的一种手推车,通过控制组件分别控制机架底部的第一轮毂电机和第二轮毂电机的转向,当所述推车需要转向时,通过控制组件控制所述第一轮毂电机和所述第二轮毂电机以相同的转速向相反方向转动,以使得推车达到在原地转向的目的,避免了当推车乘装重物时,想要转向就需要很大力推动,容易让人感到疲惫,以及在比较狭小点的空间,靠人力侧向发力用以推动推车转向,力度有时把控不准确,推车不能顺利的转向至所需要的角度,而需要反复调整耗时耗力的问题,使得该推车的转向便捷且省力,使得推车能够在狭小的空间下或装满重物的情况下快速且便捷的实现转向功能。
附图说明
图1显示为本发明于一实施例中的轴测图;
图2显示为本发明于一实施例中车斗底部的示意图;
图3显示为本发明于一实施例中承载支架的结构示意图;
图4显示为本发明于一实施例中定位组件的爆炸示意图;
图5显示为本发明于一实施例中驱动轮的剖视图;
图6显示为本发明于一实施例中轮轴与侧板的装配示意图;
图7显示为本发明于一实施例的轴测图;
图8显示为本发明于一实施例中推杆的结构示意图;
图9显示为本发明于一实施例中第一刹车部件外部的结构示意图;
图10显示为本发明于一实施例中第一刹车部件内部的结构示意图;
图11显示为图10中局部A的放大图,主要展示两个刹车蹄片的连接示意图;
图12显示为本发明于一实施例中调节杆的装配示意图;
图13显示为图12中局部B的放大图,主要展示调节杆的结构示意图;
图14显示为本发明于一实施例中第二刹车部件安装在推杆上的装配图;
图15显示为本发明于一实施例中第二刹车部件的结构示意图;
图16显示为图12中局部C的放大图,主要展示卡接槽和插槽的结构示意图;
图17显示为控制装置、刹车开关、轮毂电机与电源装置之间的电路图;
图18显示为本发明提出的一种推车的结构示意图;
图19显示为本发明于一实施例中推车的结构示意图;
图20显示为本发明于一实施例中刹车组件与驱动轮的装配示意图;
图21显示为本发明于一实施例中刹车组件与驱动轮的轴侧示意图;
图22显示为本发明于一实施例中刹车组件与驱动轮的主视图;
图23显示为本发明于一实施例中驱动轮的结构示意图;
图24显示为本发明于一实施例中刹车组件的结构示意图;
图25显示为本发明于一实施例中刹车组件另一角度的结构示意图;
图26显示为图25中沿G-G的剖面结构示意图;
图27显示为本发明于一实施例中刹车组件的爆炸示意图;
图28显示为本发明于一实施例中操作组件的结构示意图;
图29显示为本发明于一实施例中操作组件的爆炸示意图;
图30显示为本发明于一实施例中推车的结构示意图;
图31显示为本发明于一实施例中推车另一角度的结构示意图;
图32显示为本发明于一实施例中推车中控制组件的结构示意图;
图33显示为本发明于一实施例中推车中控制组件的主视图;
图34显示为图33中沿D-D的剖面结构示意图;
图35显示为本发明于一实施例中推车中控制组件的爆炸示意图;
图36显示为本发明于一实施例中推车前行时的电路示意图;
图37显示为本发明于一实施例中推车左转时的电路示意图;
图38显示为本发明于一实施例中推车右转时的电路示意图。
具体实施方式
以下通过特定的具体实例说明本发明的实施方式,本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其它优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用,本说明书中的各项细节也可以基于不同观点与应用,在没有背离本发明的精神下进行各种修饰或改变。需说明的是,在不冲突的情况下,以下实施例及实施例中的特征可以相互组合。还应当理解,本发明实施例中使用的术语是为了描述特定的具体实施方案,而不是为了限制本发明的保护范围。下列实施例中未注明具体条件的试验方法,通常按照常规条件,或者按照各制造商所建议的条件。
请参阅图1至图38。须知,本说明书所附图式所绘示的结构、比例、大小等,均仅用以配合说明书所揭示的内容,以供熟悉此技术的人士了解与阅读,并非用以限定本发明可实施 的限定条件,故不具技术上的实质意义,任何结构的修饰、比例关系的改变或大小的调整,在不影响本发明所能产生的功效及所能达成的目的下,均应仍落在本发明所揭示的技术内容所能涵盖的范围内。同时,本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语,亦仅为便于叙述的明了,而非用以限定本发明可实施的范围,其相对关系的改变或调整,在无实质变更技术内容下,当亦视为本发明可实施的范畴。
请参阅图1和图2,本发明提供一种电动手推车,包括车体总成、驱动轮、动力总成2、刹车总成4、控制总成5和电源装置6,其中驱动轮通过轮轴安装在所述车体总成上,所述驱动轮能够绕着轮轴进行转动,动力总成安装在驱动轮的轮毂内,用以驱动所述驱动轮转动,刹车总成设置在驱动轮上,以实现对驱动轮的制动,控制总成设置在车体总成上,并与所述动力总成和所述刹车总成电连接,用于控制动力总成和刹车总成,且电源装置安装在车体总成上,并与所述动力总成、所述刹车总成和所述控制总成电连接。
请参阅图1和图2,在本实施例中,车斗可装载园林作业中产生的废物或者作业中所需的工具,需要说明的是,本发明中提到的电动手推车不仅可以运用在园林作业中还可运用在其他工程领域。车斗的底部与承载支架通过螺栓固定连接,承载支架可对车斗起到支撑作用,同时还为车轮、动力装置和刹车装置提供安装条件;车斗的侧壁上固定有一推杆,且推杆位于车斗侧壁的上侧位置,推杆的形状呈U形杆状,其两端通过螺栓固定车斗的侧壁上;此外,控制装置安装在推杆上,便于操作。
请参阅图1、图2及图8,在本实施例中,车体总成包括车斗11、机架12和推杆13。车斗11的底部与机架12通过螺栓固定连接,机架12可对车斗11起到支撑作用,同时还为车轮总成1、动力总成2、刹车总成4、控制总成5和电源装置6提供了安装条件;推杆13的形状呈U形杆状,其两端通过螺栓固定车斗11的侧壁上,且推杆13与车斗11的两个连接处均成形有挂钩124。此外,控制总成5和部分刹车总成4均安装在推杆13上,便于操作。
请参阅图3,在本实施例中,在所述车体总成的底部还设置有万向轮32。驱动轮31和万向轮32均安装在机架12的底部,且驱动轮31通过轮轴1311连接在机架12上,驱动轮31绕轮轴1311转动,且轮轴1311位于驱动轮31的轴线上;其中,动力总成安装在驱动轮31的轮毂内,并将驱动轮31作为整个车轮3的前轮,万向轮32作为整个车轮3的后轮,以前轮驱动、后轮转向的安装方式,使得电动手推车具有转动效率高,且转向灵敏的优点。驱动轮31和万向轮32在机架12的底部对称设置,采用四轮结构,可有效保证手推车的平衡性和稳定性。
请参阅图2及图3,在本实施例中,机架12包括支撑架121和固定框架122。其中,支 撑架121包括横板1211和纵杆1212;横板1211通过螺栓固定在车斗11的底部,需要说明的是,横板1211沿车斗11的长度方向间隔设置有两个,且两个横板1211分别位于车斗11底部的长度方向的两端,万向轮32安装在位于车斗11后部的横板1211上,且两个万向轮32分别固定在该横板1211长度方向上的两端;纵杆1212设置有两个,且两个纵杆1212分别固定在横板1211的两端,并依次连接两个横板1211,纵杆1212对应车斗11的前端呈弯曲设置,并朝向地面弯曲,且两个纵杆1212弯曲的一端通过一横杆1213相连,从而形成一稳定的框形结构。此外,车斗11的底部开设有凹槽112,凹槽112位于车斗11宽度方向的两侧,并沿车斗11的长度方向开设,且凹槽112与纵杆1212一一对应;纵杆1212呈笔直的一段嵌设在凹槽112内,从而可对纵杆1212的位置进行限制,进一步的增加支撑架21安装的稳固性。
请参阅图2及图3,固定框架122与支撑架121固定连接,对应车斗11的前端位置,用于安装驱动轮31,并包括侧板1221和连接杆1222。其中,侧板1221在本实施例中设置有两组,且侧板1221沿纵杆1212的长度方向设置,每组侧板1221对应一个驱动轮31,且每组侧板1221中包含两个侧板1221,每两个侧板1221之间形成一驱动轮安装位(图中未标示),且两个驱动轮安装位对应车斗11宽度方向的两侧,两个驱动轮31设置在对应的安装位内(即驱动轮31位于每组中的两个侧板1221之间),每组中的一个侧板1221分别与两个纵杆1212固定连接,且该两个侧板1221分别位于两个纵杆1212相互背离的两侧;连接杆1222在本实施例中设置有两个,连接杆1222依次穿过四个侧板1221,并将四个侧板1221固定连接,且两个连接杆1222分别位于侧板1221长度方向的两端(即两个连接杆1222位于驱动轮31垂直轴向的两侧),通过四个侧板1221和两个连接杆1222形成一框形结构,使得固定框架122具有较高的结构强度,在驱动轮31转动时可承受较大的扭矩,提升整体结构的稳定性。
请参阅图4、图5和图6,在本实施例中,每个侧板1221上均开设有一腰型槽1223,且每个侧板1221的边缘位置均开设有开口1224,每个侧板1221上的开口1224均与该侧板1221上的腰型槽1223连通,且开口1224的长度尺寸小于腰型槽1223的长度尺寸,轮轴1311通过开口1224置于腰型槽1223内。需要说明的是,每个侧板1221上的腰型槽1223的轴线位于同一直线上,轮轴1311通过开口1224置于腰型槽1223内,并与腰型槽1223卡接固定,从而实现驱动轮31的安装固定,从而使得两个驱动轮31的安装位置对称,可提升电动手推车整体的稳定性。
请参阅图4、图5和图6,在本实施例中,轮轴1311的两端同轴成形有扁平轴1312,且扁平轴1312横截面的长度大于所述开口1224的深度、且小于所述腰型槽1223的长度,两个 扁平轴1312上均套设有定位组件123,用于固定连接扁平轴1312和侧板1221,以实现驱动轮31的稳定安装;此外,通过将轮轴1311的两端均与侧板1221固定的装配方式,可有效的将负载分散在轮轴1311两侧的侧板1211上,可承受大负载的运输;相比较于轮轴单边固定的方式,本发明中的轮轴1311可承受较大的扭矩,同时也降低了对整机装配的要求。
请参阅图4、图5和图6,在本实施例中,定位组件123包括定位垫圈1231和固定螺母1232。定位垫圈1231上同轴开设通孔结构,从而便于定位垫圈1231穿设在轮轴1311的两端,并位于一组侧板1221中两个侧板1221相互远离的两侧;定位垫圈1231上一体成型有一凸台1233,凸台1233嵌入腰型槽1223内,并将扁平轴1312抵紧在腰型槽1223内,以实现扁平轴1312的定位和固定;固定螺母1232套设在轮轴1311的两端,并与扁平轴1312螺纹连接,进一步的增加轮轴1311安装的稳固性。
本发明中的固定框架122可满足大尺寸车轮的安装与固定,以便于将大功率的动力总成安装在大尺寸车轮的轮毂内,从而满足电动手推车对动力的需求;此外,采用大尺寸车轮势必会增加电动手推车的底盘高度,本发明通过支撑架121的后部安装万向轮32、固定框架122内安装驱动轮31,从而达到调节机架1220的承载重心的作用,避免出现底盘重心由于更换大尺寸车轮而变高的情况发生,有效的提升了电动手推车整体的稳定性。
请参阅图1和图2,在本实施例中,两个驱动轮3上均安装有动力总成2和刹车总成4。两个驱动轮3上均安装动力总成2并通过控制总成5同时控制两个动力总成2可实现两个驱动轮3的同时运转,提升驱动轮3的动力性能和车身运行中的稳定性;两个驱动轮3上均安装部分刹车总成4,可实现两个驱动轮3的同时制动,可迅速刹停,且不会发生侧滑现象,让手推车运行更安全。
请参阅图3、图4和图5,动力总成2包括轮毂电机21在本实施例中,轮毂电机21的种类采用外转子型,譬如:低速外转子电机;其中,轮毂电机2由轮轴1311(电机转轴)、转子铁芯(图中未标示)和永磁铁(图中未标示)等零部件组成。轮轴1311的两端均成形有扁平轴1312,且扁平轴1312的扁平部与开口1224的尺寸相适配,扁平轴1312竖直穿过在对应的开口1224,并使得扁平轴1312水平置于对应的腰型槽1223内,从而使得轮轴1311两端分别并与对应的侧板1221卡接固定,且轮轴1311与驱动轮31的轮毂通过轴承转动连接,轮毂电机21的转子铁芯通过转子托架与驱动轮31内腔体的侧壁固定连接,在轮毂电机21的转子运转时,带动驱动轮31的转动。
需要说明的是,轮轴1311的两端、侧板1221上的腰型槽1223以及定位垫圈1231均采用腰型结构,三者相互装配从而大大提升驱动轮31和轮毂电机21安装的牢固性。
综上所述,本发明通过将驱动轮31安装在固定框架22内,从而满足大尺寸车轮3的安装与固定,以便于将大功率的动力总成安装在大尺寸车轮3的轮毂内,从而满足电动手推车对动力的需求;通过将轮轴1311的两端均与侧板221固定的装配方式,可有效的将负载分散在轮311两侧的侧板221上,可承受大负载的运输,提升驱动轮31安装的牢固性与承载性能;通过轮轴1311两端的扁平轴312、侧板221上的腰型槽223以及定位垫圈231上的通孔结构均采用腰型结构,三者相互装配从而大大提升驱动轮31和固定框架22之间的安装牢固性。所以,本发明有效克服了现有技术中的种种缺点而具高度产业利用价值。
请参阅图7和图8,在本实施例中,刹车总成安装在驱动轮31上,且每个驱动轮31上均安装有刹车总成,并实现对驱动轮31的制动作业;控制总成5安装在推杆13上,并位于正对使用者的方向,控制总成5通过信号线与电源装置6、刹车装置7电连接,且控制总成5上设置有多个拨杆(图中未标示)、控制旋钮(图中未标示)及开关(图中未标示),从而实现对轮毂电机的控制,控制轮毂电机的启停,并调节轮毂电机的运行功率,实现电动手推车行驶速度的调节,从而提升电动手推车中电器控制的集成化,便于使用者操作。
请参阅图7和图8,刹车总成4包括第一刹车部件41和第二刹车部件42。第一刹车部件41固定在驱动轮31的腔体内,实现对驱动轮31的制动,第二刹车部件42固定在推杆13上;其中,第一刹车部件41在手推车上设置有两个,并与两个驱动轮31一一对应;第二刹车部件42包括两个拉索423和一个信号线425,并通过两个拉索423与两个第一刹车部件41连接,一个第二刹车部件42可控制两个驱动轮31上的第一刹车部件41,可使得两个驱动轮31同时制动,即可提升制动及时性与安全性,还可提升刹车总成4的集成化,减少刹车总成4的零部件数量,降低生产成本;还通过将第二刹车部件42通过信号线425与控制总成6电连接,从而使得刹车总成4处于制动状态时,控制总成6和轮毂电机21之间的控制连接断开,进而可有效提升刹车总成4制动性能和制动安全。
请参阅图5、图9至图13,在本实施例中,第一刹车部件41包括刹车鼓411、刹车盖412、刹车蹄片413、刹车片414、调节杆415和调节支架416。刹车鼓411与驱动轮31的轮毂同轴固定,其内部形成有一容纳腔4111,且容纳腔4111背离轮毂电机21的一侧呈敞开设置,并用于安装刹车蹄片413、刹车片414等零部件;刹车盖412通过螺栓固定在侧板1211上,并将容纳腔4111敞开的一侧封闭,刹车盖412上同轴开设有供轮轴1311穿过的通孔结构(图中未标示),需要说明的是,与刹车盖412固定连接的侧板1211为驱动轮31外侧的侧板1211;此外,刹车盖412上还固定有一支撑杆4121,且支撑杆4121朝向容纳腔4111内延伸,可对刹车蹄片413起到支撑、定位作用。
请参阅图5、图9至图13,刹车蹄片413置于容纳腔4111内,在本实施例中,刹车蹄片413在容纳腔4111内设置有两个,两个刹车蹄片413的形状结构相同,均呈半圆状,且刹车蹄片413上成形有与容纳腔4111的内侧壁相适配的弧面,刹车片414固定在该弧面上,并与刹车蹄片413一一对应;此外,两个刹车蹄片413相互抵接的一端均开设有半圆槽4131,通过将两个半圆槽4131与刹车盖412上的支撑杆4121卡合,从而支撑两个刹车蹄片4123;两个刹车蹄片413相互抵接的另一端将调节杆415的一端夹紧,调节杆415的转动可实现两个刹车蹄片413的扩张,从而使得刹车片414与容纳腔4111的内侧壁抵接,实现制动的效果。
请参阅图5、图9至图13,刹车蹄片413的两端均开设有连接孔4132,且两个刹车蹄片413上的连接孔4132的开设位置、形状大小均相同,两个刹车蹄片413之间设置有弹性件,并通过弹性件弹性连接。在本实施例中,弹性件包括拉簧417;拉簧417两端分别与两个刹车蹄片413上同一端的连接孔4132勾连,且拉簧417在刹车蹄片413上设置有两个,并与两个刹车蹄片413抵接的两端一一对应。
请参阅图5、图9至图13,调节杆415的一端呈块状,并夹持在两个刹车蹄片413之间,在驱动轮31正常运转时,调节杆415呈块状的一端竖直设置,此时两个刹车片414不与刹车鼓接触,无制动力;在驱动轮31制动时,调节杆415通过调节支架416转动,其呈块状的一端水平设置,可将两个刹车蹄片413撑开,此时两个刹车片414与刹车鼓411接触,产生制动力,实现驱动轮31的制动。调节杆415的另一端穿过刹车盖412延伸在容纳腔4111的外侧,并与调节支架416的一端固定连接,且调节杆415通过轴承与刹车盖412转动连接;其中,调节杆415与调节支架416固定的一端通过卡齿结构相互啮合固定,即调节杆415延伸在容纳腔4111外侧的一端开设有卡齿(图中未标示),并沿调节杆415的周向开设,调节支架416上与调节杆415连接的位置开设有穿插孔4161,穿插孔4161的孔壁上开设有卡槽(图中未标示),卡齿与开槽相互啮合从而实现固定连接;此外,调节支架416上还采用抱箍的结构原理,即沿垂直穿插孔4161的轴线的方向将穿插孔的一侧打开,并通过螺栓将穿插孔4161的孔壁与调节杆415相互抱紧,实现调节杆415与调节支架416的可拆卸连接。
请参阅图5、图9至图13,调节支架416的另一端通过拉索423与第一刹车部件41传动连接,且该拉索423上套设有一线管426,线管426可对拉索423起到保护作用,拉索423靠近调节支架416的一端固定有挡块4261,且挡块4261固定在侧板1211上,拉索423上还套设有第一复位弹簧418,且第一复位弹簧418的两端分别与挡块4261、调节支架416抵紧;在实际操作中,使用者通过第一刹车部件41中拉索423带动调节支架416转动,从而使得位于挡块4261和调节支架416第一复位弹簧418处于压缩状态,在制动结束后,第一复位弹簧 418通过自身的弹性势能将调节支架416复位,从而满足制动的多次性与连续性。
请参阅图14至图16,在本实施例中,第二刹车部件42还包括安装套421、刹车手柄422、刹车开关424和信号线425。安装套421采用抱箍结构的原理固定在推杆13上,即安装套421上开设一开口,开口的两侧均一体成型有耳板4211,两个耳板4211通过螺栓固定连接,从而使得安装套421抱紧在推杆13上;安装套421上竖直穿设有一转轴427,刹车手柄422通过转轴427转动连接在安装套421上,且刹车手柄422与转轴427的连接处套设有第二复位弹簧428,在使用者松开刹车手柄422后,第二复位弹簧428通过自身压缩所产生的弹性势能将刹车手柄422回复到原始位置,便于下次制动操作。
请参阅图14至图16,刹车手柄422上开设有两个卡接槽4221,且两个卡接槽4221开设在刹车手柄422靠近安装套421的一端,并位于刹车手柄4221的两侧面,两个卡接槽4221与两个拉索423一一对应,且拉索423与刹车手柄422连接的一端成形有一卡接块4231,通过卡接块4231和卡接槽4221的嵌设配合,实现拉索423与刹车手柄422的卡接;安装套421与刹车手柄422的抵接处均开设有与卡接槽4221连通的插槽4212,且插槽4212与两个卡接槽4221对应,拉索423和线管426均置于插槽4212内,其中,安装套421上的插槽4212将线管426的一端卡接在插槽4212内,通过插槽4212和挡块4261可实现线管426两端的固定。
请参阅图14至图16,刹车开关424固定在安装套421上,且刹车开关424的触点与刹车手柄422传动连接,并通过信号线425与控制总成6电连接;其中,刹车手柄422上竖直固定一触压板4222,刹车开关424的触点与触压板4222对应。图11中示出控制总成5、刹车开关424、轮毂电机21与电源装置6之间的电路图,当使用者拨动刹车手柄422时,触压板4222与刹车开关424的触点分离,刹车开关424处于断开状态,从而使得控制总成5通过信号线425接收到手推车制动的状态信息,并将控制总成5与轮毂电机21之间的控制连接断开,此时,轮毂电机21停止运转,避免出现刹车总成4和轮毂电机21同时运转的情况出现,从而提升刹车总成4的制动性能和制动安全性;当刹车总成4无需刹车制动时,刹车手柄422上的触压板4222与刹车开关424的触点抵接,并使得刹车开关424处于闭合状态,从而使得手推车中的电路连接可正常工作,恢复控制总成5与轮毂电机21之间的控制连接。
请参阅图14至图16,控制总成5安装在推杆13上,并位于正对使用者的方向,控制总成5通过信号线425与电源装置6、刹车开关424电连接,且控制总成5上设置有多个拨杆(图中未标示)、控制旋钮(图中未标示)及开关(图中未标示),从而实现对轮毂电机21的控制,控制轮毂电机21的启停,并调节轮毂电机21的运行功率,实现手推车行驶速度的调节,从而提升手推车中电器电控的集成化,便于使用者操作。
请参阅图8、图14至图17,在本实施例中,电源装置6包括电池盒61、电池包型腔62、电池包63和电源线(图中未标示)。电池盒61与推杆13固定连接,且电池包型腔62开设在电池盒61内,需要说明的是,电池包型腔62在电池盒61内设置有两个;电池包63可拆卸安装在电池包型腔62内,并通过电源线将电池盒61与轮毂电机21电连接,从而为轮毂电机21和控制总成5供电。此外,电池盒61位于车斗11后部,并位于推杆13的下方,通过采用将车身重量的配重设置成前部百分之五十、后部百分之五十的结构形式,从而使得手推车的重心位于整体的中底部位置,进而当推动手推车或将手推车掀起时,车身的重心稳定,不容易倾倒,使用安全、操作方便。
在手推车需制动时,使用者拨动刹车手柄422,刹车开关424断开,使得电源装置6停止给轮毂电机21供电,轮毂电机21停止运转;同时,刹车手柄422将拉动拉索423,使得调节支架416沿调节杆415的轴向转动,从而带动调节杆415自转,调节杆415夹持在两个刹车蹄片413之间的一端将两个刹车蹄片413撑开,使得固定在刹车蹄片413上的刹车片414与刹车鼓411的内侧壁抵接,由于刹车片413相对于手推车位置基本不变,刹车鼓411为转动状态,刹车片413与刹车鼓411之间产生的摩擦力可降低驱动轮31的转速,进而实现手推车的制动。在手推车制动结束后,使用者松开刹车手柄422,刹车开关424重新闭合,恢复控制总成5、电源装置6、轮毂电机21之间的电连接,第一复位弹簧418、第二复位弹簧428分别将刹车手柄422、调节支架416复位到原始位置,从而使得刹车鼓411内的刹车片414与刹车鼓411的内侧壁分离,进而使得驱动轮31可正常运转。
综上所述,本发明通过将第二刹车部件42通过信号线425与控制总成5电连接,从而使得刹车总成4处于制动状态时,控制总成5和轮毂电机21之间的控制连接断开,进而可有效提升刹车总成4制动性能和制动安全;通过一个第二刹车部件42可控制两个驱动轮31上的第一刹车部件41,可使得两个驱动轮31同时制动,即可提升制动及时性与安全性,还可提升刹车总成4的集成化,减少刹车总成4的零部件数量,降低生产成本;通过两个驱动轮31上均安装轮毂电机21,并通过控制总成5同时控制两个轮毂电机21,可实现两个驱动轮31的同时运转,提升驱动轮31的动力性能和车身运行中的稳定性;两个驱动轮31上均安装第一刹车部件41,可实现两个驱动轮31的同时制动,可迅速刹停,且不会发生侧滑现象,让手推车运行更安全。所以,本发明有效克服了现有技术中的种种缺点而具高度产业利用价值。
请参阅图18至图29,在另一实施例中,所述驱动轮31通过轴承座701与所述机架12连接,所述轴承座701固定安装在所述机架12的底部,在所述驱动轮31的一侧上固定设置有所述刹车盘301,且所述驱动轮31通过一转轴702与所述轴承座701固定连接,具体的, 所述驱动轮31和所述刹车盘301均安装在所述转轴702上,所述驱动轮31和所述刹车盘301能够绕所述转轴702同步转动。
如图19、图21至图27所示,所述转轴702与所述轴承座701连接的一端上设置有一平槽7021,将所述转轴702设置有所述平槽7021的一端伸入所述轴承座701内,并通过一压板7012将所述转轴702与所述轴承座701固定连接,所述压板7012位于所述平槽2011处,此结构固定方式简单有效,同时限制了所述转轴702的旋转和左右方向的运动,防止所述轮毂电机21在所述轴承座701中晃动脱落。
如图19、图21至图27所示,在本实施例中,所述刹车组件7安装在所述轴承座701上,具体的,所述刹车组件7包括第一驱动件71和刹车片72,所述第一驱动件71与所述轴承座701固定连接,所述刹车片72安装在所述第一驱动件71上。在本实施例中,第一驱动件71例如设置为泵体,所述第一驱动件71包括壳体711和活塞712,所述活塞712设置在所述壳体711内,并与所述壳体711之间形成一储油腔室703,所述壳体711上设置有一进油口7111,所述进油口7111连通所述储油腔室703,且所述进油口7111连接有液压油管704,液压油沿所述进油口7111进入所述壳体711的储油腔室703内,以推动所述活塞712朝向所述刹车盘301的方向移动。
如图19、图21至图27所示,在本实施例中,所述刹车片72包括第一刹车片721和第二刹车片722,所述第一刹车片721与所述活塞712固定连接,所述第二刹车片722与所述第一驱动件71的壳体711固定连接,且所述刹车盘301位于所述第一刹车片721和所述第二刹车片722之间,具体的,所述第一刹车片721和所述第二刹车片722之间存在一间隙,所述刹车盘301的边缘部分位于所述间隙内,当液压油沿所述进油口7111进入所述壳体711的储油腔室703内,从而推动所述活塞712,以进而推动所述第一刹车片721,使得所述第一刹车片721逐渐靠近所述第二刹车片722,从而接触并挤压所述刹车盘301,产生摩擦力,因所述刹车盘301与驱动轮31是固定在一起的,所以达到刹停的目的。
如图19、图28至图29所示,在本实施例中,所述机架12上还安装有所述操作组件73,所述操作组件73包括第二驱动件731和刹车手柄732,具体的,所述第二驱动件731安装在所述机架12上,所述第二驱动件731与所述第一驱动件71之间通过所述液压油管704连接,在本实施例中,所述第二驱动件731例如设置为泵体,具体的,所述第二驱动件731包括油壳7311,所述油壳7311内设置有一油管螺丝7112,所述油管螺丝7112与油壳7311之间形成储油腔室703,所述储油腔室703通过所述液压油管704与所述第一驱动件71的储油腔室703连通,所述刹车手柄732安装在所述第二驱动件731的油壳7311上,用于推动所述油管 螺丝7112。
如图19、图28至图29所示,在本实施例中,当需要进行刹车时,扳动所述刹车手柄732,使得所述刹车手柄732推动所述第二驱动件731内的油管螺丝7112移动,将第二驱动件7312的储油腔室703内的液压油沿着所述液压油管704挤压至所述第一驱动件71的储油腔室703内,在液压油的压力作用下推动所述活塞712,从而推动所述刹车片32,以使所述刹车片32接触并挤压所述刹车盘301。
如图19、图28至图29所示,在本实施例中,所述刹车手柄732与所述油壳7311之间通过转动轴705转动连接,且所述转动轴705上套设有第三复位弹簧706,当扳动所述刹车手柄732时,所述第三复位弹簧706被压缩,当松开所述刹车手柄732时,在所述第三复位弹簧706的弹力作用下驱使所述刹车手柄732回复至原位。
如图19、图28至图29所示,在本实施例中,所述机架12包括一推杆13,所述操作组件73安装在所述推杆13上,且所述推杆13上还安装有控制总成5(控制盒),所述控制总成5用于控制所述推车的启停,在本实施例中,所述第二驱动件731的底部设置有一开关7313,所述开关7313通过信号线7314与所述机架12上的控制总成5连接。
如图19、图28至图29所示,在本实施例中,当所述开关7313处于断开状态时,此时所述信号线7314无法向所述控制总成5传输信号,所述控制总成5无法控制所述轮毂电机21的开启、关闭功能,即无法控制所述推车的启停。当所述开关7313处于接通状态时,此时所述信号线7314能够向所述控制总成5传输信号,所述控制总成5恢复控制所述轮毂电机21的开启、关闭功能。所述开关7313与所述推车的刹车过程形成联动,在刹车时,暂时断开控制总成5对推车控制作用,以避免发生误触,从而造成危险。
如图19、图28至图29所示,具体的,在本实施例中,所述机架12上还设置有车斗11,所述车斗11的一侧上安装有电池装置6以为所述推车提供动力源,长按控制总成5的开关,轮毂电机21启动,推车运行;松开控制总成5的开关,则轮毂电机21关闭,推车停止运行。
如图19、图28至图29所示,在本实施例中,所述刹车手柄732包括握持部7321、刹车部7322和开关触发部7323,所述握持部7321用于供操作者握持,所述刹车部7322和所述开关触发部7323位于所述握持部7321的同一端,且所述刹车部7322和所述开关触发部7323之间存在夹角,所述刹车部7322用于推动所述第二驱动件731内的油管螺丝7112移动,所述开关触发部7323用于控制所述开关7313的通断。
如图18至图29所示,具体的,所述推车的刹车过程为,操作者通过所述握持部7321扳动所述刹车手柄42,使得所述刹车部7322与所述第二驱动件731内的油管螺丝7112接触, 并推动所述油管螺丝7112向前移动,以压缩所述第二驱动件731内的储油腔室703,从而使得所述储油腔室703内的液压油沿着所述液压油管704进入所述第一驱动件71的储油腔室703内,在液压油的压力作用下推动所述活塞712,以进而推动所述第一刹车片721,使得所述第一刹车片721逐渐靠近所述第二刹车片722,从而接触并挤压所述刹车盘301,以达到将所述轮毂电机21刹停的目的,并且还需要说明的是,在扳动所述刹车手柄42推动所述油管螺丝7112的同时,所述刹车手柄42的开关触发部7323脱离所述开关7313,使得所述开关7313断开,从而使得其无法通过所述信号线414向所述控制总成5传输信号,以避免轮毂电机在刹车时仍处于驱动状态,此时轮毂电机断电,失去旋转动力。
如图18至图29所示,在本实施例中,需要启动所述推车时,松开所述刹车手柄42,在所述复位弹簧403的弹力作用下使得所述刹车手柄73回复原位,此时,所述油管螺丝7112失去刹车手柄42的推动作用,从而使得所述油管螺丝7112在液压油的压力下往回移动,液压油管704中的液压油回流到第二驱动件731中,进而使得所述活塞712往回运动,以进而带动所述刹车片721,使得所述刹车片721逐渐远离所述刹车盘301,以解除对所述轮毂电机21刹停作用,并且还需要说明的是,在扳动所述刹车手柄732回复到起始位置时,所述刹车手柄732的开关触发部7323触发所述开关7313,从而使得所述开关7313处于接通状态,此时使其能够通过所述信号线414向所述控制总成5传输信号,进而使得所述控制总成5恢复控制所述轮毂电机21的开启、关闭功能。
如图18至图29所示,还需要说明的是,在本实施例中,所述机架12的底部两侧分别对称安装有所述轴承座701,两侧的轴承座701上分别安装有所述驱动轮31和所述刹车组件30,且所述操作组件73中的第二驱动件731通过两条所述液压油管704分别连接两侧所述刹车总成7中的第一驱动件71,以达到一个所述第二驱动件731则可以控制两个所述轮毂电机21的刹车功能,使得其操作起来更加方便,而且两个轮子同时刹车,可迅速刹停,且不会发生侧滑现象,让推车运行更安全。本申请的技术方案中,推车的刹车结构为机械驱动,更加能保证安全,可以避免电动刹车装置因电量不足导致的刹车失灵情况。
综上所述,通过在机架底部的两侧分别安装刹车组件,以避免推车乘装重物走在有坡度的路面时,使用人员力竭或不小心摔跤或者电池包电量不足等情况下,推车可能会倒溜失控,从而避免对财产及人身安全造成伤害。并且进一步通过一个操作组件去同时控制两个刹车组件,以使得其操作起来更加方便,而且两个轮子同时刹车,可实现迅速刹停,且能够避免在刹车时发生侧滑现象,让推车运行过程更安全。另外,还通过设置开关与所述推车的刹车过程形成联动,在刹车时,暂时断开控制盒对推车开启或关闭的控制作用,以避免发生误触, 从而造成危险。
如图30至图38所示,在本实施例中,所述控制总成包括转向控制装置,所述转向控制装置与所述车体总成两侧的驱动轮内的动力总成电连接,用于控制所述车体总成两侧的驱动轮的转向,所述转向控制装置包括:支架,其内安装有控制板;转向开关,安装在所述支架上,并与所述控制板连接,所述转向开关用于控制所述车体总成两侧的驱动轮的转向。即所述车体总成两侧的驱动轮31内的第一轮毂电机311和第二轮毂电机312与所述转向控制装置连接,用以控制所述第一轮毂电机211和所述第二轮毂电机212的转向。还需要说明的是,所述机架12上还安装有电源装置,用以为所述推车提供动力源。
如图1及图36所示,在本实施例中,当所述第一轮毂电机211和所述第二轮毂电机212向相同方向转动时,所述推车处于前行或后退状态;当所述第一轮毂电机211和所述第二轮毂电机212向不同方向转动时,所述推车处于左转或右转状态,且需要说明的是,所述第一轮毂电机211和所述第二轮毂电机212的转速相同,因此,当所述第一轮毂电机211和所述第二轮毂电机212向不同方向转动从而进行左转或右转时,能够实现在原地的转弯过程。
如图30、图32至图35所示,在本实施例中,所述转向控制装置83安装在所述推杆102上,用以控制所述第一轮毂电机211和所述第二轮毂电机212,具体的,所述转向控制装置83包括支架831、转向手柄832、主开关833、控制板834和转向开关835,所述支架831固定安装在所述推杆102上,所述控制板834安装在所述支架831的内部,所述主开关833同样安装在所述支架831的内部,且所述主开关833与所述控制板834电连接,所述转向手柄832安装在所述支架831上,所述转向手柄832用以控制所述主开关833,所述转向开关835安装在所述支架831上,并与所述控制板834电连接,所述转向开关835用以控制所述第一轮毂电机211和所述第二轮毂电机212的转向,从而控制所述推车的转向。
如图30、图32至图35所示,在本实施例中,所述转向手柄832通过一转轴8321与所述支架831转动连接,即所述转轴8321转动安装在所述支架831上,所述转向手柄832安装在所述转轴8321上,且所述转轴8321上还套设有第四复位弹簧8322,初始状态下,所述转向手柄832是处于将所述主开关833按压的状态,扳动所述转向手柄832,使得所述转向手柄832远离所述主开关833,以释放所述主开关833,当松开所述转向手柄832时,在所述第四复位弹簧8322的作用下,所述转向手柄832回复至原始位置,重新按压住所述主开关833。
如图30、图32至图35所示,在本实施例中,所述控制板834上设定有左转档位“L”、中间档位“0”和右转档位“R”三个不同的档位线路,并通过所述转向开关835进行控制切换,需要说明的是,所述支架831上设置有压板836,所述压板836与所述支架831固定连 接,以将所述转向开关835固定安装在所述支架831上,需要说明的是,所述压板836通过焊接或卡扣的方式与所述支架831固定连接在一起。在本实施例中,所述控制板834上还设置有至少一个指示灯,所述指示灯安装在所述压板836上,用以至少所述推车当前所处的档位状态。
如图30、图32至图35所示,在本实施例中,所述指示灯的数量例如设置为三个,分别为第一指示灯8371、第二指示灯8372和第三指示灯8373,所述第一指示灯8371、所述第二指示灯8372和所述第三指示灯8373分别对应所述左转档位“L”、所述中间档位“0”和所述右转档位“R”三个不同的档位,即当所述推车处于所述左转档位“L”、所述中间档位“0”和所述右转档位“R”中的某一个档位时,与该档位对应的指示灯亮起,其余指示灯熄灭,例如,当所述推车处于左转状态时,所述第一指示灯8371亮起,所述中间档位“0”和所述右转档位“R”处于熄灭状态。当然,在其他实施例中,所述指示灯的数量也可以设置为一个可以呈现不同颜色的指示灯,例如设置为红、绿和黄三种不同的颜色,每一种颜色分别对应所述左转档位“L”、所述中间档位“0”和所述右转档位“R”三个不同的档位中的一种,当所述推车处于所述左转档位“L”、所述中间档位“0”和所述右转档位“R”中的某一个档位时,该指示灯呈现与该档位对应的颜色,以提醒用户。
如图30、图32至图35所示,还需要说明的是,在所述支架831上还安装有控制总成5(控制盒),所述控制总成5通过第一信号线8381与所述转向控制装置83电连接,当控制所述转向开关835将所述控制板834内设定的左转档位“L”、中间档位“0”和右转档位“R”三个不同的档位线路中的一个线路接通后,还需要通过按压所述控制总成5上的控制开关以接通整个驱动线路,从而使得所述第一轮毂电机211和所述第二轮毂电机212向相同或相反的方向转动,以使得所述推车正常前行或进行转向。
如图30、图35及图36所示,在本实施例中,所述转向开关835例如设置为船型开关,所述船型开关上设置有“L”、“0”和“R”三种不同的标识,分别对应所述控制板834内设定的左转档位“L”、中间档位“0”和右转档位“R”三个不同的档位线路,所述标识“L”和标识“R”位于所述船型开关的两侧,标识“0”位于所述船型开关的中间位置,在本实施例中,电源装置为所述推车提供动力源后,在初始状态时,所述转向开关835位于标识“0”的位置,所述转向手柄832在所述第四复位弹簧8322的弹力作用下按压所述主开关833,使得所述主开关833处于被按压状态,通过第一信号线8381向所述控制总成5传输信号,此时所述主开关833以“0”线路接通,通过第二信号线8382向所述控制总成5传输信号,其余左转档位的“L”线路和右转档位的“R”线路均处于断开状态,此时,长按控制总成5上的 控制开关,所述第一轮毂电机211和所述第二轮毂电机212启动,且所述第一轮毂电机211和所述第二轮毂电机212的转向相同,使得所述推车正常沿直线运行,松开所述控制总成5上的控制开关,则所述第一轮毂电机211和所述第二轮毂电机212关闭,推车停止运行。
如图30、图35及图37所示,在本实施例中,通过按压所述转向手柄832,使得所述转向手柄832绕着所述转轴8321转动从而远离所述主开关833,使得所述主开关833不被按压,此时通过第一信号线8381向所述控制总成5传输信号,使得主开关833与所述船型开关的线路“M”线路接通,通过将所述船型开关调节至标识“L”的位置上,此时对应的第一指示灯8371亮起,以提醒用户,此时通过第二信号线8382向控制总成5传输信号,船型开关与左转档位的“L”线路接通,此时长按控制总成5上的控制开关,所述第一轮毂电机211以所设定速度往前匀速转动,而所述第二轮毂电机212则以相同速度匀速向与所述第一轮毂电机211相反的方向转动,达到将推车原地左转向的目的,调整到所需要的转向角度时松开控制总成5上的控制开关,则所述第一轮毂电机211和所述第二轮毂电机212关闭,推车停止运行。
如图30、图35及图38所示,在本实施例中,通过按压所述转向手柄832,使得所述转向手柄832绕着所述转轴8321转动从而远离所述主开关833,使得所述主开关833不被按压,此时通过第一信号线8381向所述控制总成5传输信号,使得主开关833与所述船型开关的线路“M”线路接通,通过将所述船型开关调节至标识“R”的位置上,此时对应的第三指示灯8373亮起,以提醒用户,此时通过第二信号线8382向控制总成5传输信号,船型开关与右转档位的“R”线路接通,此时长按控制总成5上的控制开关,所述第二轮毂电机212以所设定速度往前匀速转动,而所述第一轮毂电机211则以相同速度匀速向与所述第二轮毂电机212相反的方向转动,达到将推车原地右转向的目的,调整到所需要的转向角度时松开控制总成5上的控制开关,则所述第一轮毂电机211和所述第二轮毂电机212关闭,推车停止运行。
如图30至图38所示,需要说明的是,当长按控制总成5上的控制开关,推车在正常运行状态行驶过程中突然需要转向时,将船型开关按压至左转档位“L”或右转档位“R”,用手按压住转向手柄832,此时控制总成5会先运行设定程序,使所述第一轮毂电机211和所述第二轮毂电机212断电,停止运行,待推车完全停止时,然后才会执行转向功能,以保护轮毂电机免受损害。
本发明提出一种自由转向的推车,通过控制组件分别控制机架底部的第一轮毂电机和第二轮毂电机的转向,当所述第一轮毂电机和所述第二轮毂电机向相同方向转动时,所述推车 处于前行或后退状态,当所述第一轮毂电机和所述第二轮毂电机向相反方向转动时,所述推车处于左转或右转状态,并且所述第一轮毂电机和所述第二轮毂电机的转速相同,使得当所述推车需要转向时,通过控制组件控制所述第一轮毂电机和所述第二轮毂电机以相同的转速向相反方向转动,以使得推车达到在原地转向的目的,避免了当推车乘装重物时,想要转向就需要很大力推动,容易让人感到疲惫,以及在比较狭小点的空间,靠人力侧向发力用以推动推车转向,力度有时把控不准确,推车不能顺利的转向至所需要的角度,而需要反复调整耗时耗力的问题,使得该推车的转向便捷且省力,使得推车能够在狭小的空间下或装满重物的情况下快速且便捷的实现转向功能。
上述实施例仅例示性说明本发明的原理及其功效,而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下,对上述实施例进行修饰或改变。因此,举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变,仍应由本发明的权利要求所涵盖。

Claims (12)

  1. 一种手推车,其特征在于,包括:
    车体总成;
    驱动轮,通过轮轴连接在所述车体总成上,所述驱动轮能够绕轮轴转动;
    动力总成,安装在所述驱动轮的轮毂内,驱动所述驱动轮转动;
    刹车总成,部分设置在所述驱动轮上,实现对所述驱动轮的制动;
    控制总成,设置在所述车体总成上,并与所述动力总成和所述刹车总成电连接;
    电源装置,设置在所述车体总成上,并与所述动力总成、所述刹车总成和所述控制总成电连接;
    其中,所述控制总成包括转向控制装置,所述转向控制装置与所述车体总成两侧的驱动轮内的动力总成电连接,用于控制所述车体总成两侧的驱动轮的转向,所述转向控制装置包括:支架,其内安装有控制板;转向开关,安装在所述支架上,并与所述控制板连接,所述转向开关用于控制所述车体总成两侧的驱动轮的转向。
  2. 根据权利要求1所述的手推车,其特征在于,所述转向控制装置还包括:
    转向手柄,通过一转轴与所述支架连接;
    主开关,安装在所述支架内部,连接所述控制板,并通过所述转向手柄控制;
    复位弹簧,套设在所述转轴上;
    压板,与所述支架固定连接,以固定所述转向开关。
  3. 根据权利要求2所述的手推车,其特征在于,所述控制板内设定有左转档位、中间档位和右转档位三个不同的档位,并通过所述转向开关进行控制。
  4. 根据权利要求3所述的手推车,其特征在于,所述控制板上还设置有至少一个指示灯,且所述指示灯用于指示所述转向开关的状态。
  5. 根据权利要求3所述的手推车,其特征在于,所述控制板上还设置有三个指示灯,分别对应所述左转档位、所述中间档位和所述右转档位三个不同的档位。
  6. 根据权利要求4或5所述的手推车,其特征在于,还包括压板,所述压板通过焊接或卡扣的方式与所述支架固定连接在一起,以固定所述转向开关,且所述指示灯安装在所述压板上。
  7. 根据权利要求1所述的手推车,其特征在于,所述车体总成的机架上还安装有控制盒,所述控制盒通过信号线与所述转向控制装置电连接。
  8. 根据权利要求1所述的手推车,其特征在于,所述动力总成包括轮毂电机,置于所述驱动轮的轮毂内。
  9. 根据权利要求1所述的手推车,其特征在于,所述刹车总成包括:
    第一驱动件,所述第一驱动件与所述车体总成的机架固定连接;
    刹车片,所述刹车片与所述第一驱动件连接;
    操作组件,安装在所述机架上,包括第二驱动件和刹车手柄,所述第二驱动件与所述第一驱动件之间通过液压油管连接,所述刹车手柄安装在所述第二驱动件上,刹车时,所述刹车手柄推动第二驱动件内的液压油沿着所述液压油管挤压至所述第一驱动件内,从而推动所述刹车片,以使所述刹车片接触并挤压所述刹车盘,所述刹车盘与所述驱动轮的轮毂固定连接。
  10. 根据权利要求1所述的手推车,其特征在于,所述刹车总成包括:
    第一刹车部件,固定在所述驱动轮处,实现对所述驱动轮的制动;
    第二刹车部件,固定在所述车体总成的推杆上,并通过拉索与所述第一刹车部件连接,且所述第二刹车部件通过信号线与所述控制装置电连接;
    在所述刹车总成处于制动状态时,所述控制装置和所述动力总成之间的控制连接断开。
  11. 根据权利要求1所述的手推车,其特征在于,所述电源装置包括:
    电池盒,固定在所述车体总成的推杆上;
    电池包型腔,成形在所述电池盒内;
    电池包,可拆卸固定在所述电池包型腔内;
    电源线,电连接所述电池包和所述动力总成中的轮毂电机。
  12. 根据权利要求1所述的手推车,其特征在于,所述车体总成包括机架和车斗,所述车斗固定在所述机架上,所述机架包括:
    支撑架,固定在所述车斗的底部,并承载所述车斗;
    固定框架,与所述支撑架固定连接,用于安装所述驱动轮;
    所述驱动轮两侧的轮轴均与所述固定框架固定连接。
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CN216185392U (zh) * 2021-10-20 2022-04-05 格力博(江苏)股份有限公司 一种手推车
CN215904553U (zh) * 2021-10-26 2022-02-25 格力博(江苏)股份有限公司 一种自由转向的推车

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