Scissor lift aerial platform

Abstract

The present application relates to the field of device control, and discloses a scissor-type aerial work platform (1000). The scissor-type aerial work platform comprises a tilt sensor (1010), an operating device (1020), a processor (1030), a lifting device (1040), a work platform (1050), a preset number of bridge expansion devices (1060) and a preset number of wheels (1070); the tilt sensor is used for detecting the lateral tilt angle of the scissor-type aerial work platform and outputting the lateral tilt angle to the processor; the processor is used for sending a bridge expansion instruction to the bridge expansion device according to the lateral tilt angle; the bridge expansion device is used for extending according to the received bridge expansion instruction to adjust the position of the wheel to the bridge expansion position; and the operating device is used for controlling the lifting device to lift the work platform when the wheel is in the bridge expansion state. The position of the wheel is adjusted by the bridge expansion device, the support width of the wheel in contact with the ground is increased, the stability and safety of the scissor-type aerial work platform are improved, and the scissor-type aerial work platform is suitable for different working scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of device control, in particular to a scissor aerial work platform. BACKGROUND

[0002] The aerial work vehicle is a kind of manned equipment, which is widely used in aerial work scenes such as equipment security maintenance. The aerial work vehicle includes a lifting device and an aerial work platform. The lifting device is used to lift the operator or equipment in the aerial work platform to a specified height. The overall size of the aerial work vehicle is large and cannot be applied to indoor work scenes. The scissor aerial work platform has the characteristics of light weight and the outer side of the wheel is flush with the side of the chassis. Compared with the aerial work vehicle with large overall size, the scissor aerial work platform has the characteristics of small overall size, so that the scissor aerial work platform has good passability in indoor scenes.

[0003] However, in order to ensure the passability of the scissor aerial work platform, the overall size of the scissor aerial work platform is limited. The chassis of the scissor aerial work platform cannot increase additional counterweight, which leads to poor stability of the scissor aerial work platform. In addition, environmental factors such as wind speed in outdoor scenes will further affect the stability of the scissor aerial work platform, which will affect the work safety of the operator in the aerial work platform. In order to reduce the influence of environmental factors on the stability of the scissor aerial work platform, the scissor aerial work platform is usually applied to indoor work scenes. SUMMARY

[0004] The purpose of the present application is to provide a device for solving the problem of how to improve the stability of the scissor aerial work platform.

[0005] In order to achieve the above purpose, in a first aspect, the present application provides a scissor aerial work platform, comprising an inclination sensor, an operating device, a processor, a lifting device, a work platform, and a preset number of bridge expansion devices and a preset number of wheels.

[0006] The processor is connected to the inclination sensor and the operating device respectively, the lifting device is connected to the work platform, and the operating device is arranged on the work platform. Each bridge expansion device is connected to a wheel.

[0007] The inclination sensor is used to detect the lateral inclination of the scissor aerial work platform and output the lateral inclination to the processor.

[0008] The processor is used to send a bridge expansion instruction to the bridge expansion device according to the lateral inclination.

[0009] The bridge expansion device is used to extend according to the received bridge expansion instruction to adjust the position of the wheel to the bridge expansion position.

[0010] The operation device is configured to control the lifting device to lift or lower the working platform when the vehicle wheels are in the extended bridge state.

[0011] With reference to the first aspect, in a first possible implementation manner, the operation device is further configured to send a work mode instruction to the processor, wherein the work mode instruction comprises an indoor work instruction and an outdoor work instruction.

[0012] The processor is further configured to send an extended bridge instruction to the extended bridge device when the outdoor work instruction is received and the lateral tilt angle is less than or equal to the first angle.

[0013] The processor is further configured to send an extended bridge instruction to the extended bridge device when the indoor work instruction is received and the lateral tilt angle is greater than the first angle and less than or equal to a second angle, wherein the second angle is greater than the first angle.

[0014] With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the processor is further configured to generate an alarm information and send a locking instruction to the lifting device and the extended bridge device respectively when the outdoor work instruction is received and the lateral tilt angle is greater than the first angle.

[0015] The processor is further configured to generate an alarm information and send a locking instruction to the lifting device and the extended bridge device respectively when the indoor work instruction is received and the lateral tilt angle is greater than the second angle.

[0016] With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner, the operation device is further configured to control the lifting device to lift or lower the working platform when the indoor work instruction is sent to the processor and the lateral tilt angle is less than or equal to the first angle.

[0017] With reference to the first aspect, in a fourth possible implementation manner, the scissors-type aerial work platform further comprises a preset number of first limit switches.

[0018] Each of the first limit switches is configured to send an extended bridge state confirmation signal to the processor when it is detected that a corresponding one of the vehicle wheels is in the extended bridge position.

[0019] The processor is further configured to send an extension termination instruction to the extended bridge device to control the extended bridge device to stop extending according to the extended bridge state confirmation signal.

[0020] With reference to the first aspect, in a fifth possible implementation form of the first aspect, the scissors-type aerial work platform further comprises a detection switch;

[0021] The detection switch is configured to send a stowed state determination signal to the processor when it is detected that the lifting device is in the stowed position.

[0022] The processor is further configured to send a bridge expansion instruction to the bridge expansion device when the stowed state determination signal is received and the vehicle wheel is in the bridge contraction state.

[0023] The processor is further configured to send a bridge contraction instruction to the bridge expansion device when the stowed state determination signal is received and the vehicle wheel is in the bridge expansion state.

[0024] The bridge expansion device is configured to retract according to the received bridge contraction instruction to adjust the position of the vehicle wheel to the bridge contraction position.

[0025] With reference to the fifth possible implementation form of the first aspect, in a sixth possible implementation form of the first aspect, the scissors-type aerial work platform further comprises a preset number of second limit switches.

[0026] Each of the second limit switches is configured to send a bridge contraction state confirmation signal to the processor when it is detected that the corresponding one of the vehicle wheels is in the bridge contraction position.

[0027] The processor is further configured to send a retraction termination instruction to the bridge expansion device to control the bridge expansion device to stop retracting according to the received bridge contraction state confirmation signal.

[0028] With reference to the first aspect, in a seventh possible implementation form of the first aspect, the scissors-type aerial work platform further comprises a vehicle frame and a preset number of guide support devices.

[0029] Each of the guide support devices and the lifting device is arranged on the vehicle frame.

[0030] The vehicle wheels are arranged on the guide support devices, the head of the bridge expansion device is connected to the guide support devices, and the tail of the bridge expansion device is connected to the vehicle frame.

[0031] With reference to the seventh possible implementation form of the first aspect, in an eighth possible implementation form of the first aspect, the guide support device comprises a top sliding block and a side sliding block, and the vehicle frame comprises a guide rail.

[0032] The top sliding block and the side sliding block slide along the guide rail, respectively.

[0033] In a ninth possible implementation manner of the seventh possible implementation manner of the first aspect, the guiding support device comprises a wheel frame and a wheel mounting seat.

[0034] The wheel frame is arranged on the vehicle frame, and the wheel frame is connected to the head of the bridge expanding device.

[0035] The wheel mounting seat is arranged on the wheel frame, and the wheel is arranged on the wheel mounting seat.

[0036] In a tenth possible implementation manner of the seventh possible implementation manner of the first aspect, the guiding support device comprises a motor mounting seat and a walking motor.

[0037] The motor mounting seat is arranged on the vehicle frame, and the motor mounting seat is connected to the head of the bridge expanding device.

[0038] The walking motor is arranged on the motor mounting seat, and the wheel is arranged on the walking motor.

[0039] The walking motor is configured to drive the wheel to rotate.

[0040] In an eleventh possible implementation manner of the tenth possible implementation manner of the first aspect, the operation device is further configured to send a walking instruction to the processor.

[0041] The processor is further configured to control the walking motor to rotate according to the received walking instruction.

[0042] In a twelfth possible implementation manner of the first aspect, the scissors-type aerial work platform further comprises a driver, and the bridge expanding device is an electric cylinder.

[0043] The driver is configured to drive the electric cylinder to extend and retract.

[0044] The scissors-type aerial work platform comprises an inclination sensor, an operation device, a processor, a lifting device, a work platform, a preset number of bridge expanding devices, and a preset number of wheels. The inclination sensor is configured to detect a lateral inclination of the scissors-type aerial work platform and output the lateral inclination to the processor. The processor is configured to send a bridge expanding instruction to the bridge expanding device according to the lateral inclination. The bridge expanding device is configured to extend according to the received bridge expanding instruction and adjust a position of the wheel to a bridge expanding position. The operation device is configured to control the lifting device to lift the work platform when the wheel is in the bridge expanding state. The position of the wheel is adjusted by the bridge expanding device, the support width of the wheel in contact with the ground is increased, the stability and safety of the scissors-type aerial work platform are improved, and the scissors-type aerial work platform is applicable to different working scenarios.

[0045] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0046] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0047] Figure 1 This paper shows a schematic diagram of a first structure of the scissor lift aerial work platform provided in an embodiment of this application;

[0048] Figure 2 This paper shows a second structural schematic diagram of the scissor lift aerial work platform provided in an embodiment of this application;

[0049] Figure 3 This invention illustrates a third structural schematic diagram of the scissor lift aerial work platform provided in an embodiment of this application.

[0050] Figure 4 This invention illustrates a fourth structural schematic diagram of the scissor lift aerial work platform provided in an embodiment of this application.

[0051] Figure 5 A schematic diagram of a fifth structure of the scissor lift aerial work platform provided in this application embodiment is shown;

[0052] Figure 6 The scissor lift aerial work platform provided in the embodiment of this application is shown along... Figure 5 The first sectional view along the AA direction;

[0053] Figure 7 The scissor lift aerial work platform provided in the embodiment of this application is shown along... Figure 5 The second sectional view along the AA direction;

[0054] Figure 8 The scissor lift aerial work platform provided in the embodiment of this application is shown along... Figure 5 The first sectional view in the BB direction.

[0055] Explanation of reference numerals in the attached figures

[0056] 1000-Scissor lift aerial work platform; 1010-Tilt sensor, 1020-Operating device, 1030-Processor, 1040-Lifting device, 1050-Working platform, 1060-Bridge expansion device, 1070-Wheels, 1080-First limit switch, 1090-Detection switch, 1100-Second limit switch, 1110-Frame, 1130-Driver; 1111-Guide rail, 1121-Top slider, 1122-Side slider, 1123-Wheel frame, 1124-Wheel mounting base, 1125-Motor mounting base, 1126-Travel motor. Detailed Implementation

[0057] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the present invention.

[0058] The components of the embodiments of the invention described and illustrated herein can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0059] In the following, the terms “comprising,” “having,” and their cognates, which may be used in various embodiments of the invention, are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as excluding, firstly, the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations thereof.

[0060] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0061] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the invention pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of the invention.

[0062] Please see Figure 1 , Figure 1A schematic diagram of the first structure of the scissor lift aerial work platform provided in this application embodiment is shown.

[0063] Exemplary, the scissor lift aerial work platform 1000 includes a tilt sensor 1010, an operating device 1020, a processor 1030, a lifting device 1040, a work platform 1050, and a preset number of bridge expansion devices 1060 and a preset number of wheels 1070.

[0064] The processor 1030 is connected to the tilt sensor 1010 and the operating device 1020 respectively. The lifting device 1040 is connected to the working platform 1050. The operating device 1020 is disposed on the working platform 1050. Each of the bridge expansion devices 1060 is connected to one of the wheels 1070.

[0065] The tilt sensor 1010 is used to detect the lateral tilt angle of the scissor lift aerial work platform 1000 and output the lateral tilt angle to the processor 1030;

[0066] The processor 1030 is used to send a bridge expansion command to the bridge expansion device 1060 according to the lateral tilt angle;

[0067] The bridge widening device 1060 is used to extend according to the received bridge widening command to adjust the position of the wheel 1070 to the bridge widening position.

[0068] The operating device 1020 is used to control the lifting device 1040 to raise and lower the work platform 1050 when the wheel 1070 is in the widened bridge state, wherein the widened bridge state is when the wheel 1070 is in the widened bridge position.

[0069] To ensure the maneuverability of the scissor lift 1000 during indoor operations, it typically needs to operate within a specific working slope range. If the current slope is too steep, the tilt angle of the scissor lift 1000 detected by the tilt sensor 1010 will be too high, thus affecting the stability of the scissor lift 1000.

[0070] When the scissor lift 1000 is carrying a load, the stabilizing moment of the scissor lift 1000 is calculated as follows:

[0071] M z =S*L1-M e *L e -M q *L q -F*H2 Formula (1)

[0072] Among them, Mz Let S be the stabilizing torque of the scissor lift 1000, S be the total weight of the scissor lift 1000, and L1 be the distance between the scissor lift 1000 and the tipping line. e L is the distance between the loaded cargo and the tipping line. q M is the distance between the working platform 1050 and the tilting line. e For the weight of the payload, M q F represents the weight of the work platform 1050, F represents the manual operating force of the scissor lift aerial work platform 1000, and H2 represents the lever arm length of the manual operating force.

[0073] Please refer to the following: Figure 2 , Figure 2 A schematic diagram of a second structure of the scissor lift aerial work platform provided in an embodiment of this application is shown.

[0074] It should be understood that the first quantity is set according to actual needs and is not limited here. For ease of understanding, in the embodiments of this application, the first quantity is 4. Specifically, the center of each wheel 1070 and one of the wheels 1070 are on the same axis, and the bridge expansion device 1060 is also set on the same axis. As shown in the figure, each wheel 1070 and one of the wheels 1070 are close to each other along the same axis. For ease of understanding, the processor 1030 of this application is a scissor lift structure. According to formula (1), increasing the distance between the entire scissor lift platform 1000 and the tilting line can improve the stabilizing torque of the scissor lift platform 1000. The processor 1030 sends the bridge expansion command to the bridge expansion device 1060 according to the lateral tilt angle.

[0075] Please refer to the following: Figure 3 , Figure 3 A schematic diagram of a third structure of the scissor lift aerial work platform provided in an embodiment of this application is shown.

[0076] The bridging device 1060 extends upon receiving the bridging command, adjusting the position of the wheels 1070 to the bridging position. This bridging position is set according to actual needs and is not limited here. When the bridging device 1060 extends, it adjusts the position of the wheels 1070, ensuring that each wheel 1070 is further away from another wheel 1070 along the same axis. This increases the support width of the wheels 1070 touching the ground, thereby increasing the distance between the scissor lift platform 1000 and the tipping line, thus improving the stability and safety of the scissor lift platform 1000. Only when the wheels 1070 are in the bridging position can the lifting device 1040 be used to raise and lower the work platform 1050 using the operating device 1020 to prevent the scissor lift platform 1000 from tipping over.

[0077] It should be understood that the type of operating device 1020 is set according to actual needs, and can be an operating handle, etc., and is not limited here. The type of processor 1030 is also set according to actual needs, and can be an ECU (Electronic Control Unit), etc., and is not limited here. The position of tilt sensor 1010 is set according to actual needs, and can be set on the lifting device 1040 or on the chassis of scissor lift 1000, and is not limited here.

[0078] As an example, the operating device 1020 is also used to send a work mode instruction to the processor 1030, wherein the work mode instruction includes an indoor work instruction and an outdoor work instruction;

[0079] The processor 1030 is also configured to send a bridge widening command to the bridge widening device 1060 when it receives the outdoor operation command and the lateral tilt angle is less than or equal to the first angle.

[0080] The processor 1030 is further configured to send a bridge widening command to the bridge widening device 1060 when it receives the indoor operation command and the lateral tilt angle is greater than the first angle and less than or equal to the second angle, wherein the second angle is greater than the first angle.

[0081] Since environmental factors such as wind speed in outdoor environments can affect the stability of the scissor lift platform 1000, when the scissor lift platform 1000 is in an outdoor environment, the operating device 1020 directly sends an outdoor operation command to the processor 1030 to adjust the wheels 1070 to the extended bridge position to ensure the stability of the scissor lift platform 1000. Specifically, when the processor 1030 receives an outdoor operation command and the lateral tilt angle is less than or equal to a first angle, indicating a risk of tipping over, it sends an extended bridge command to the extended bridge device 1060, which adjusts the position of the wheels 1070 to the extended bridge position.

[0082] When the scissor lift platform 1000 is in an indoor environment, the impact of environmental factors such as wind speed on stability is avoided. After the operating device 1020 sends an indoor operation command to the processor 1030, if the lateral tilt angle is less than or equal to the first angle, the wheels 1070 do not need to be adjusted to the extended axle position to ensure the passability of the scissor lift platform 1000. If the lateral tilt angle is greater than the first angle but less than or equal to the second angle, an extended axle command is sent to the extended axle device 1060. Since the scissor lift platform 1000 is at risk of tipping over, an extended axle command is sent to the extended axle device 1060, which then adjusts the position of the wheels 1070 to the extended axle position. It should be understood that the first and second angles are set according to actual needs and are not limited here.

[0083] In an optional example, the operating device 1020 is also configured to control the lifting device 1040 to raise or lower the work platform 1050 when sending an indoor work instruction to the processor 1030 and when the lateral tilt angle is less than or equal to a first angle.

[0084] After the operating device 1020 sends an indoor work command to the processor 1030, the scissor lift platform 1000 can stably perform high-altitude operations when the lateral tilt angle is less than or equal to the first angle, without needing to adjust the wheels 1070 to the widened axle position. The lifting device 1040 is directly controlled by the operating device 1020 to raise and lower the work platform 1050, ensuring the passability of the scissor lift platform 1000.

[0085] As an example, the processor 1030 is also configured to generate alarm information and send locking commands to the lifting device 1040 and the bridge expansion device 1060 respectively when it receives the outdoor operation instruction and the lateral tilt angle is greater than the first angle.

[0086] The processor 1030 is also configured to generate alarm information and send locking commands to the lifting device 1040 and the bridge expansion device 1060 respectively when it receives the indoor operation instruction and the lateral tilt angle is greater than the second angle.

[0087] When the lateral tilt angle is too high, the scissor lift platform 1000 will tip over. Specifically, when the scissor lift platform 1000 is in an outdoor environment and the lateral tilt angle is greater than the first angle, even if the wheels 1070 are adjusted to the extended axle position, there is still a risk that the scissor lift platform 1000 will tip over. The processor 1030 generates an alarm message and sends locking commands to the lifting device 1040 and the extended axle device 1060 respectively.

[0088] Even when the scissor lift platform 1000 is located indoors and its lateral tilt angle is greater than the second angle, there is still a risk of tipping over, even if the wheels 1070 are adjusted to the extended axle position. The processor 1030 generates an alarm message to alert the operator. Simultaneously, the processor 1030 also sends locking commands to the lifting device 1040 and the extended axle device 1060, preventing the lifting device 1040 from lifting the work platform 1050, thereby preventing the scissor lift platform 1000 from tipping over and ensuring the operator's safety.

[0089] Please refer to the following: Figure 4 , Figure 4 A schematic diagram of a fourth structure of the scissor lift aerial work platform provided in this application embodiment is shown.

[0090] As an example, the scissor lift aerial work platform 1000 also includes a preset number of first limit switches 1080;

[0091] Each of the first limit switches 1080 is used to send an axle expansion status confirmation signal to the processor 1030 when it is detected that one of the corresponding wheels 1070 is in the axle expansion position.

[0092] The processor 1030 is further configured to send an extension termination command to the bridge expansion device 1060 based on the bridge expansion status confirmation signal, thereby controlling the bridge expansion device 1060 to stop extending.

[0093] The paving device 1060 extends according to the received paving command, adjusting the position of the wheel 1070. Since the paving device 1060 itself cannot determine the position of the wheel 1070, each first limit switch 1080 is set to the paving position of one wheel 1070 to detect whether the wheel 1070 has been adjusted to the paving position. When the wheel 1070 is in the paving position, the first limit switch 1080 is triggered to send a paving status confirmation signal to the processor 1030. Based on the paving status confirmation signal, the processor 1030 determines that the position of the wheel 1070 has been adjusted to the paving position and sends an extension termination command to the paving device 1060. Upon receiving the extension termination command, the paving device 1060 stops extending and locks the position of the wheel 1070 in the paving position.

[0094] As an example, the scissor lift aerial work platform 1000 also includes a detection switch 1090;

[0095] The detection switch 1090 is used to send a storage status confirmation signal to the processor 1030 when the lifting device 1040 is detected to be in the storage position.

[0096] The processor 1030 is further configured to send an expansion command to the expansion device 1060 when it receives the storage state determination signal and the wheel 1070 is in a reduced bridge state, wherein the reduced bridge state is when the wheel 1070 is in a reduced bridge position.

[0097] The processor 1030 is also configured to send a bridge reduction command to the bridge expansion device 1060 when it receives the storage state determination signal and the wheel 1070 is in the bridge expansion state.

[0098] The bridge expansion device 1060 is used to retract according to the received bridge reduction command, adjusting the position of the wheel 1070 to the bridge reduction position.

[0099] When the scissor lift 1040 is in the retracted position, that is, when the lift 1040 lowers the work platform 1050 to its lowest height, the lift 1040 is in the retracted state, and the scissor lift aerial work platform 1000 has good maneuverability. A detection switch 1090 is used to detect whether the lift 1040 is in the retracted state. If the detection switch 1090 detects that the lift 1040 is in the retracted position, it determines that the lift 1040 is in the retracted state and sends a retracted state confirmation signal to the processor 1030.

[0100] Upon receiving a storage status confirmation signal and indicating that wheels 1070 are in a retracted state, processor 1030 sends a retraction command to retractor 1060, controlling retractor 1060 to extend, causing each wheel 1070 to move away from one of the other wheels 1070 along the same axis. Upon receiving a storage status confirmation signal and indicating that wheels 1070 are in a retracted state, processor 1030 sends a retraction command to retractor 1060. Retractor 1060 retracts according to the received retraction command, adjusting the position of wheels 1070 to the retracted position, causing each wheel 1070 to move closer to one of the other wheels 1070 along the same axis.

[0101] In an optional example, the scissor lift aerial work platform 1000 also includes a preset number of second limit switches 1100;

[0102] Each of the second limit switches 1100 is used to send a bridge reduction status confirmation signal to the processor 1030 when it is detected that one of the corresponding wheels 1070 is in the bridge reduction position;

[0103] The processor 1030 is further configured to send a retraction termination command to the bridge expansion device 1060 based on the received bridge retraction status confirmation signal, thereby controlling the bridge expansion device 1060 to stop retraction.

[0104] The paving device 1060 retracts according to the received paving reduction command, adjusting the position of the wheel 1070. Since the paving device 1060 itself cannot determine the position of the wheel 1070, each second limit switch 1100 is set to the paving position of one wheel 1070 to detect whether the wheel 1070 has been adjusted to the paving position. When the wheel 1070 is in the paving position, the second limit switch 1100 is triggered to send a paving status confirmation signal to the processor 1030. Based on the paving status confirmation signal, the processor 1030 determines that the position of the wheel 1070 has been adjusted to the paving position and sends a retraction termination command to the paving device 1060. Upon receiving the retraction termination command, the paving device 1060 stops extending, locking the position of the wheel 1070 in the paving position.

[0105] It should be understood that the types of the first limit switch 1080, the detection switch 1090, and the second limit switch 1100 are all selected according to actual needs, and can be sensors, etc., which are not limited here.

[0106] Please refer to the following: Figure 5 , Figure 5 A fifth structural schematic diagram of the scissor lift aerial work platform provided in this application embodiment is shown.

[0107] As an example, the scissor lift aerial work platform 1000 also includes a frame 1110 and a predetermined number of guide support devices;

[0108] Each of the aforementioned guide support device and the lifting device 1040 is disposed on the vehicle frame 1110;

[0109] The wheel 1070 is mounted on the guide support device, the head of the bridge expansion device 1060 is connected to the guide support device, and the tail of the bridge expansion device 1060 is connected to the frame 1110.

[0110] For ease of understanding, Figure 5 The processor 1030 and the work platform 1050 are no longer shown. The frame 1110 has a rectangular structure, and the mounting devices for the first number of wheels 1070 are respectively arranged at the four corners of the frame 1110, so that the positions of the first number of wheels 1070 are centrally symmetrical. The middle part of the frame 1110 has a hinge lug that is hinged to the rear of the bridge expansion device 1060.

[0111] Each wheel 1070 and one of its 1070 centers are on the same axis, and the bridge expansion device 1060 is also located on the same axis. Simultaneously, the wheels 1070 are mounted on wheel 1070 mounting devices, allowing each wheel 1070 to rotate only on the mounting devices. When the bridge expansion device 1060 extends, it pushes the wheel 1070 mounting devices, thereby adjusting the wheels 1070 mounted on the mounting devices so that each wheel 1070 moves away from one of its 1070 centers along the same axis, increasing the ground contact width of the wheels 1070 and improving the stability and safety of the scissor lift platform 1000. When the bridge expansion device 1060 retracts, it drives the wheel 1070 mounting devices, thereby adjusting the wheels 1070 mounted on the mounting devices so that each wheel 1070 moves closer to one of its 1070 centers along the same axis, reducing the ground contact width of the wheels 1070 and ensuring the passability of the scissor lift platform 1000.

[0112] Please also refer to 6. Figure 6 The scissor lift aerial work platform provided in the embodiment of this application is shown along... Figure 5 The first sectional view along the AA direction.

[0113] In an optional example, the guide support device includes a wheel carrier 1123 and a wheel mount 1124.

[0114] The wheel frame 1123 is mounted on the vehicle frame 1110, and the wheel frame 1123 is connected to the front of the bridge expansion device 1060;

[0115] The wheel mounting seat 1124 is disposed on the wheel frame 1123, and the wheel 1070 is disposed on the wheel mounting seat 1124.

[0116] In the case of a two-wheel drive scissor lift aerial work platform 1000, there are wheels 1070 that do not require motor drive to rotate. Wheels 1070 are mounted on wheel mounting seats 1124, allowing them to rotate only on the wheel mounting seats 1124. For ease of understanding, in the embodiments of this application, the wheel mounting seats 1124 are fixedly mounted on the wheel frame 1123, and one side of the wheel frame 1123 has a protruding hinge that is hinged to the head of the bridge expansion device 1060. When the bridge expansion device 1060 extends or retracts, the deformation of the bridge expansion device 1060 causes the wheel frame 1123 to slide along the guide rail 1111 of the frame 1110, thereby adjusting the position of the wheels 1070 mounted on the wheel mounting seats 1124.

[0117] Please refer to the following: Figure 7 , Figure 7 The scissor lift aerial work platform provided in the embodiment of this application is shown along...Figure 5 The second type of sectional view along the AA direction.

[0118] In an optional example, the guide support device includes a motor mount 1125 and a travel motor 1126;

[0119] The motor mounting base 1125 is disposed on the vehicle frame 1110, and the motor mounting base 1125 is connected to the head of the bridge expansion device 1060;

[0120] The walking motor 1126 is mounted on the motor mounting base 1125, and the wheel 1070 is mounted on the walking motor 1126;

[0121] The walking motor 1126 is used to drive the wheel 1070 to rotate.

[0122] Wheel 1070 is mounted on drive motor 1126, and wheel 1070 rotates with the output shaft of drive motor 1126. For ease of understanding, in the embodiment of this application, drive motor 1126 is fixedly mounted on motor mounting base 1125, and one side of motor mounting base 1125 has a protruding hinge lug that is hinged to the head of bridge expansion device 1060. When bridge expansion device 1060 extends or retracts, the deformation of bridge expansion device 1060 causes motor mounting base 1125 to slide along guide rail 1111 of frame 1110, thereby adjusting the position of wheel 1070 mounted on drive motor 1126.

[0123] It should be understood that when the scissor lift aerial work platform 1000 is four-wheel drive, the motor mounting device including the motor mounting bracket 1125 and the travel motor 1126 is not provided, and will not be elaborated here. Furthermore, if the travel motor 1126 has a wheel hub structure, the tire is directly mounted on the travel motor 1126. If the travel motor 1126 does not have a wheel hub structure, the vehicle, including the tire and wheel hub, is mounted on the travel motor 1126.

[0124] In an optional example, the operating device 1020 is further configured to send walking commands to the processor 1030;

[0125] The processor 1030 is also used to control the walking motor 1126 to rotate according to the received walking command.

[0126] The operating device 1020 is installed on the work platform 1050. The operator within the work platform 1050 uses the operating device 1020 to control the movement of the scissor lift aerial work platform 1000 and to control the lifting of the work platform 1050. Specifically, the operating device 1020 sends a travel command to the processor 1030. Based on the received travel command, the processor 1030 controls the travel motor 1126 to rotate, thereby controlling the movement of the scissor lift aerial work platform 1000. The operating device 1020 also sends a lifting command to the processor 1030. Based on the received lifting command, the processor 1030 controls the lifting device 1040 to lift the work platform 1050. It should be understood that the type of operating device 1020 is selected based on actual needs and is not limited here.

[0127] Please refer to the following: Figure 8 , Figure 8 The scissor lift aerial work platform provided in the embodiment of this application is shown along... Figure 5 The first sectional view in the BB direction.

[0128] In an optional example, the guide support device includes a top slider 1121 and a side slider 1122, and the frame 1110 includes a guide rail 1111;

[0129] The top slider 1121 and the side slider 1122 slide along the guide rail 1111 respectively.

[0130] The wheel 1070 mounting device has a top slider 1121 on its top and side sliders 1122 on its sides. It should be understood that the wheel 1070 mounting device typically has four sides, and the number of side sliders 1122 can be set according to actual needs. For ease of understanding, in the embodiments of this application, the wheel 1070 mounting device has side sliders 1122 on two sides. Specifically, when the wheel 1070 mounting device includes a wheel frame 1123, the top slider 1121 is disposed on the top of the wheel frame 1123, and the side sliders 1122 are disposed on the sides of the wheel frame 1123. When the wheel 1070 mounting device includes a motor mounting base 1125, the top slider 1121 is disposed on the top of the motor mounting base 1125, and the side sliders 1122 are disposed on the sides of the motor mounting base 1125.

[0131] The structure of the guide rail 1111 is set according to the positions of the top slider 1121 and the side slider 1122, and is not limited here. By moving the sliders along the guide rail 1111, the sliding resistance of the wheel 1070 mounting device in the guide rail 1111 is reduced, thereby improving the efficiency of adjusting the position of the wheel 1070.

[0132] As an example, the scissor lift aerial work platform 1000 also includes a drive 1130, and the bridge expansion device 1060 is an electric cylinder;

[0133] The driver 1130 is used to drive the electric cylinder to extend and retract.

[0134] For ease of understanding, in the embodiments of this application, the bridge expansion device 1060 is an electric cylinder with the motor and cylinder body integrated. The electric cylinder can be powered by the battery built into the frame 1110, and the electric cylinder can be driven to extend and retract by the driver 1130. When the scissor lift aerial work platform 1000 is powered off, the electric cylinder is adjusted to a locked state.

[0135] It should be understood that the bridge widening device 1060 can also be a hydraulic cylinder, which will not be elaborated here. Compared to hydraulic cylinders, using an electric cylinder to adjust the position of the wheel 1070 eliminates the risk of hydraulic oil leakage, making it suitable for scenarios with high environmental requirements.

[0136] This application provides a scissor lift aerial work platform, including a tilt sensor, an operating device, a processor, a lifting device, a work platform, and a preset number of paving devices and a preset number of wheels. The tilt sensor detects the lateral tilt angle of the scissor lift aerial work platform and outputs the lateral tilt angle to the processor. The processor sends a paving command to the paving device based on the lateral tilt angle. The paving device extends according to the received paving command, adjusting the position of the wheels to the paving position. The operating device controls the lifting device to raise and lower the work platform when the wheels are in the paving position. By adjusting the wheel position using the paving device, the support width of the wheels touching the ground is increased, improving the stability and safety of the scissor lift aerial work platform, making it suitable for different working scenarios.

[0137] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0138] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0139] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A scissor lift aerial work platform (1000), characterized in that, It includes a tilt sensor (1010), an operating device (1020), a processor (1030), a lifting device (1040), a working platform (1050), and a preset number of bridge expansion devices (1060) and a preset number of wheels (1070); The processor (1030) is connected to the tilt sensor (1010) and the operating device (1020) respectively. The lifting device (1040) is connected to the working platform (1050). The operating device (1020) is disposed on the working platform (1050). Each of the bridge expansion devices (1060) is connected to one of the wheels (1070). The tilt sensor (1010) is used to detect the lateral tilt angle of the scissor lift aerial work platform (1000) and output the lateral tilt angle to the processor (1030); The processor (1030) is used to send a bridge expansion command to the bridge expansion device (1060) according to the lateral tilt angle; The bridge widening device (1060) is used to extend according to the received bridge widening command to adjust the position of the wheel (1070) to the bridge widening position; The operating device (1020) is used to control the lifting device (1040) to raise and lower the work platform (1050) when the wheel (1070) is in the bridge-widening state, wherein the bridge-widening state is when the wheel (1070) is in the bridge-widening position. The operating device (1020) is also used to send operation mode instructions to the processor (1030), the operation mode instructions including indoor operation instructions and outdoor operation instructions; The processor (1030) is also configured to send a bridge widening command to the bridge widening device (1060) when it receives the outdoor operation command and the lateral tilt angle is less than or equal to the first angle. The processor (1030) is further configured to send a bridge expansion command to the bridge expansion device (1060) when it receives the indoor operation command and the lateral tilt angle is greater than the first angle and less than or equal to the second angle, wherein the second angle is greater than the first angle. The processor (1030) is also configured to generate alarm information and send locking commands to the lifting device (1040) and the bridge expansion device (1060) respectively when it receives the outdoor operation instruction and the lateral tilt angle is greater than the first angle. The processor (1030) is also configured to generate alarm information and send locking commands to the lifting device (1040) and the bridge expansion device (1060) respectively when it receives the indoor operation instruction and the lateral tilt angle is greater than the second angle.

2. The scissor lift aerial work platform (1000) according to claim 1, characterized in that, The operating device (1020) is also used to control the lifting device (1040) to raise and lower the work platform (1050) when sending an indoor operation command to the processor (1030) and when the lateral tilt angle is less than or equal to the first angle.

3. The scissor lift aerial work platform (1000) according to claim 1, characterized in that, It also includes a preset number of first limit switches (1080); Each of the first limit switches (1080) is used to send an axle expansion status confirmation signal to the processor (1030) when it is detected that one of the corresponding wheels (1070) is in the axle expansion position; The processor (1030) is also configured to send an extension termination command to the bridge expansion device (1060) based on the bridge expansion status confirmation signal, and control the bridge expansion device (1060) to stop extending.

4. The scissor lift aerial work platform (1000) according to claim 1, characterized in that, It also includes a detection switch (1090); The detection switch (1090) is used to send a storage status determination signal to the processor (1030) when the lifting device (1040) is detected to be in the storage position; The processor (1030) is further configured to send an expansion command to the expansion device (1060) when it receives the storage state determination signal and the wheel (1070) is in a reduced bridge state, wherein the reduced bridge state is when the wheel (1070) is in a reduced bridge position. The processor (1030) is also configured to send a bridge reduction command to the bridge expansion device (1060) when it receives the storage state determination signal and the wheel (1070) is in the bridge expansion state. The bridge expansion device (1060) is used to retract according to the received bridge reduction command and adjust the position of the wheel (1070) to the bridge reduction position.

5. The scissor lift aerial work platform (1000) according to claim 4, characterized in that, It also includes a preset number of second limit switches (1100); Each of the second limit switches (1100) is used to send a bridge reduction status confirmation signal to the processor (1030) when it is detected that one of the corresponding wheels (1070) is in the bridge reduction position; The processor (1030) is further configured to send a retraction termination command to the bridge expansion device (1060) based on the received bridge retraction status confirmation signal, and control the bridge expansion device (1060) to stop retraction.

6. The scissor lift aerial work platform (1000) according to claim 1, characterized in that, It also includes a frame (1110) and a predetermined number of guide support devices; Each of the aforementioned guide support device and the lifting device (1040) is disposed on the vehicle frame (1110); The wheel (1070) is mounted on the guide support device, the head of the bridge expansion device (1060) is connected to the guide support device, and the tail of the bridge expansion device (1060) is connected to the frame (1110).

7. The scissor lift aerial work platform (1000) according to claim 6, characterized in that, The guide support device includes a top slider (1121) and a side slider (1122), and the frame (1110) includes a guide rail (1111); The top slider (1121) and the side slider (1122) slide along the guide rail (1111) respectively.

8. The scissor lift aerial work platform (1000) according to claim 6, characterized in that, The guide support device includes a wheel frame (1123) and a wheel mounting seat (1124); The wheel frame (1123) is mounted on the vehicle frame (1110), and the wheel frame (1123) is connected to the front of the bridge expansion device (1060); The wheel mounting seat (1124) is disposed on the wheel frame (1123), and the wheel (1070) is disposed on the wheel mounting seat (1124).

9. The scissor lift aerial work platform (1000) according to claim 6, characterized in that, The guide support device includes a motor mounting base (1125) and a walking motor (1126); The motor mounting base (1125) is disposed on the vehicle frame (1110), and the motor mounting base (1125) is connected to the head of the bridge expansion device (1060); The walking motor (1126) is mounted on the motor mounting base (1125), and the wheel (1070) is mounted on the walking motor (1126); The walking motor (1126) is used to drive the wheel (1070) to rotate.

10. The scissor lift aerial work platform (1000) according to claim 9, characterized in that, The operating device (1020) is also used to send walking commands to the processor (1030); The processor (1030) is also used to control the walking motor (1126) to rotate according to the received walking command.

11. The scissor lift aerial work platform (1000) according to claim 1, characterized in that, It also includes a driver (1130), and the bridge expansion device (1060) is an electric cylinder; The driver (1130) is used to drive the electric cylinder to extend and retract.

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