Aerial work vehicle with straight arm
Patent Information
- Application Number
- CN202522239887.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-10-22
AI Technical Summary
[0004]这种实施方式，主要依赖人工经验判断直臂式高空作业车与集装箱的安全距离，无法察觉集装箱内部情况，存在误判风险，从而容易使直臂式高空作业车与集装箱发生碰撞，进而导致设备损坏、延误运输，甚至引发安全事故等
[0024] The telescopic boom lift provided in this application embodiment can deploy a center-position detection switch between the vehicle chassis and the slewing mechanism of the telescopic boom lift. This allows the driving direction of the telescopic boom lift to be determined before controlling its movement, preventing the vehicle from traveling in the opposite direction to the ideal direction, which could lead to collisions with obstacles and compromise its safety. Furthermore, this application embodiment can also deploy a distance measuring sensor at the end of the slewing mechanism connected to the boom, enabling timely and accurate sensing of the distance between the telescopic boom lift and obstacles. This further prevents collisions and damage to the telescopic boom lift. Compared to existing methods that rely on the operator's experience to avoid collisions, this implementation is more accurate, avoids misjudgments, and ensures the safety and efficiency of telescopic boom lift transportation.
Smart Images
Figure CN224646632U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of engineering machinery technology, and in particular to a straight boom aerial work platform. Background Technology
[0002] When carrying out overseas shipping, there is often a problem of collisions between the straight boom aerial work platform and the container.
[0003] Currently, the main method relies on the experience of the operators of the telescopic boom lifts to determine the distance between the telescopic boom lift and the rear of the container, thereby avoiding collisions between the telescopic boom lift and the container.
[0004] This method of implementation relies mainly on human experience to judge the safe distance between the boom lift and the container. It cannot detect the situation inside the container, which poses a risk of misjudgment. This can easily lead to a collision between the boom lift and the container, resulting in equipment damage, transportation delays, or even safety accidents. Utility Model Content
[0005] This application provides a straight boom aerial work platform that ensures the safety of the platform during transportation and avoids collisions with containers.
[0006] This application provides a straight boom aerial work platform, comprising at least: a vehicle chassis, a boom, a slewing mechanism, an electronic control unit, and a drive unit; wherein...
[0007] A center position detection switch is deployed between the vehicle chassis and the slewing mechanism; the center position detection switch is used to determine the driving direction of the straight boom aerial work platform.
[0008] A distance sensor is deployed at the end of the slewing mechanism connected to the boom; the distance sensor is used to determine the distance between the straight boom aerial work platform and the obstacle;
[0009] The electronic control unit is used to receive the switch signal from the center detection switch, the distance signal from the distance sensor, and the drive status of the drive unit; and to control the movement of the straight boom aerial work vehicle according to the generated vehicle control command; the vehicle control command is generated based on the switch signal, the distance signal, and the drive status.
[0010] In one possible implementation, the center position detection switch includes a first switching component and a second switching component; wherein the first switching component is deployed on the vehicle chassis; and the second switching component is deployed on the slewing mechanism.
[0011] If the first switch component and the second switch component come into contact, the switch signal indicates that the straight boom aerial work platform is traveling in the forward direction.
[0012] If the first switch component and the second switch component are not in contact, the switch signal indicates that the straight boom aerial work platform is traveling in the opposite direction.
[0013] In one possible implementation, the drive unit includes at least a brake valve; the electronic control unit is configured to:
[0014] When the received distance signal is a first distance signal, the brake valve is controlled to close according to the generated first control command, so as to stop the straight boom aerial work platform from moving; wherein, the first distance signal indicates that the distance between the straight boom aerial work platform and the obstacle is less than a first preset threshold.
[0015] In one possible implementation, a camera sensor is also included; the camera sensor is used to acquire image data including the boom lift and the obstacle.
[0016] In one possible implementation, a display screen is also included; wherein the display screen is used to receive and display the image data, and after receiving the distance signal collected by the ranging sensor, to display the distance between the boom lift and the obstacle.
[0017] In one possible implementation, the electronic control unit is further configured to:
[0018] If the received distance signal is the second distance signal, the generated alarm information is sent to the display screen for display; wherein, the second distance signal indicates that the distance between the boom lift and the obstacle is greater than or equal to the first preset threshold and less than the second preset threshold.
[0019] In one possible implementation, the display screen is also used to display a control panel; the control panel is used to adjust the first preset threshold and / or the second preset threshold; the display screen is also used to send the first preset threshold and / or the second preset threshold adjusted by the control panel to the electronic control unit.
[0020] In one possible implementation, redundant ranging sensors are deployed at the end of the slewing mechanism connected to the boom.
[0021] In one possible implementation, the obstacle indicates a container; the distance sensor is used to determine the distance between the direction of travel of the boom lift and the bottom of the container.
[0022] In one possible implementation, the drive unit includes at least an operating handle and a foot switch;
[0023] The electronic control unit is also used to receive reset signals corresponding to the operating handle and the foot switch respectively, and when it is determined that the reset signal indicates that the operating handle and the foot switch are reset, it controls the movement of the straight boom aerial work vehicle according to the generated vehicle control command.
[0024] The telescopic boom lift provided in this application embodiment can deploy a center-position detection switch between the vehicle chassis and the slewing mechanism of the telescopic boom lift. This allows the driving direction of the telescopic boom lift to be determined before controlling its movement, preventing the vehicle from traveling in the opposite direction to the ideal direction, which could lead to collisions with obstacles and compromise its safety. Furthermore, this application embodiment can also deploy a distance measuring sensor at the end of the slewing mechanism connected to the boom, enabling timely and accurate sensing of the distance between the telescopic boom lift and obstacles. This further prevents collisions and damage to the telescopic boom lift. Compared to existing methods that rely on the operator's experience to avoid collisions, this implementation is more accurate, avoids misjudgments, and ensures the safety and efficiency of telescopic boom lift transportation. Attached Figure Description
[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0026] Figure 1 This is a structural schematic diagram of a straight boom aerial work platform provided in an embodiment of this application;
[0027] Figure 2 A structural schematic diagram of another straight boom aerial work platform provided in this application;
[0028] Figure 3 This is a schematic diagram of a mid-position detection switch provided in this application.
[0029] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0030] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0031] In this document, the term "and / or" merely describes a relationship, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.
[0032] When carrying out overseas shipping, there is often a problem of collisions between the straight boom aerial work platform and the container.
[0033] Currently, the main method relies on the experience of the operators of the telescopic boom lifts to determine the distance between the telescopic boom lift and the rear of the container, thereby avoiding collisions between the telescopic boom lift and the container.
[0034] This method of implementation relies mainly on human experience to judge the safe distance between the boom lift and the container. It cannot detect the situation inside the container, which poses a risk of misjudgment. This can easily lead to a collision between the boom lift and the container, resulting in equipment damage, transportation delays, or even safety accidents.
[0035] The telescopic boom aerial work platform provided in this application determines the driving direction of the telescopic boom aerial work platform by means of a center position detection switch, and determines the distance between the telescopic boom aerial work platform and obstacles (e.g., the bottom of a container) by means of a distance sensor. Thus, the driving of the telescopic boom aerial work platform can be controlled according to the switch signal, distance signal and driving status, thereby ensuring that the vehicle avoids collision with the container when entering / exiting the container, thereby improving the safety of the telescopic boom aerial work platform.
[0036] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.
[0037] Figure 1This is a structural schematic diagram of a straight boom aerial work platform provided in an embodiment of this application, as shown below. Figure 1 As shown, the straight boom aerial work platform includes at least: a vehicle chassis 11, a boom 12, a slewing mechanism 13, an electronic control unit 14, and a drive unit 15; wherein, the electronic control unit 14 and the drive unit 15 are not shown in the figure.
[0038] In this embodiment of the application, a center position detection switch 16 is deployed between the vehicle chassis 11 and the slewing mechanism 13; the center position detection switch 16 is used to determine the driving direction of the straight boom aerial work vehicle.
[0039] Optionally, if the switch signal detected by the center position detection switch is high, it can be determined that the travel direction of the telescopic boom aerial work platform is forward; if the switch signal detected by the center position detection switch is not high, it can be determined that the travel direction of the telescopic boom aerial work platform is reverse.
[0040] In this embodiment, a distance sensor 17 is deployed at the end of the slewing mechanism 13 connected to the boom 12; the distance sensor 17 is used to determine the distance between the straight boom aerial work platform and the obstacle.
[0041] Optionally, the sensor type of the ranging sensor 17 can be a laser ranging sensor, a TOF (Time of Flight) ranging sensor, an ultrasonic sensor, or an infrared ranging sensor, etc. The sensor type of the ranging sensor 17 is not limited here, as long as it can be implemented.
[0042] In this embodiment, the electronic control unit 14 is used to receive the switch signal from the center detection switch 16, the distance signal from the distance sensor 17, and the drive status of the drive unit 15; and to control the movement of the telescopic boom aerial work platform according to the generated vehicle control commands. The vehicle control commands are generated based on the switch signal, the distance signal, and the drive status.
[0043] In one example, the driving state of the drive unit 15 can indicate the driving direction and driving speed. The driving direction can be forward or backward, etc., and the driving speed can be accelerating or decelerating, etc.
[0044] Optionally, when the obstacle indicates a container, a distance sensor can be used to determine the distance between the traveling direction of the telescopic boom lift and the bottom of the container. Based on this, after receiving switch signals, distance signals, and the drive status of the drive unit, the electronic control unit can generate vehicle control commands according to the process described below.
[0045] The transportation process of a straight boom aerial work platform can be divided into two scenarios: container loading and container unloading. In the container loading scenario, during normal vehicle operation, the distance between the straight boom aerial work platform and the bottom of the container needs to be determined based on distance signals.
[0046] If the distance signal indicates that the distance between the boom lift and the bottom of the container is greater than or equal to the second preset threshold, it is determined that the distance between the boom lift and the bottom of the container is too far. At this time, the generated vehicle control command instructs the boom lift to drive normally (e.g., the second control command).
[0047] If the distance signal indicates that the distance between the boom lift and the bottom of the container is greater than or equal to the first preset threshold and less than the second preset threshold, it is determined that the distance between the boom lift and the bottom of the container is relatively close. At this time, the generated vehicle control command (e.g., the third control command) instructs the boom lift to travel at a limited speed, that is, to limit the maximum speed of the boom lift, so that the actual speed of the boom lift is reduced proportionally according to the driving state.
[0048] If the distance signal indicates that the distance between the telescopic boom lift and the bottom of the container is less than a first preset threshold, it is determined that the distance between the telescopic boom lift and the bottom of the container is very close. At this time, the generated vehicle control command (e.g., the first control command) instructs the telescopic boom lift to stop driving to avoid a collision between the telescopic boom lift and the container, thereby ensuring the safety of the telescopic boom lift.
[0049] In container unloading scenarios, the telescopic boom lift initially remains stationary. Before unloading, its direction of travel can be determined based on a switch signal. For example, if the vehicle is traveling in the forward direction, it can only move backward; if it is traveling in the reverse direction, it can only move forward, thus preventing collisions between the telescopic boom lift and the container.
[0050] Subsequently, if the distance signal indicates that the distance between the boom lift and the bottom of the container is greater than or equal to the second preset threshold, it is determined that the distance between the boom lift and the bottom of the container is too far. At this time, the generated vehicle control command instructs the boom lift to drive normally.
[0051] If the distance signal indicates that the distance between the boom lift and the bottom of the container is greater than or equal to the first preset threshold and less than the second preset threshold, it is determined that the distance between the boom lift and the bottom of the container is relatively close. At this time, the generated vehicle control command instructs the boom lift to travel at a limited speed, that is, to limit the maximum speed of the boom lift, so that the actual speed of the boom lift is reduced proportionally according to the driving state.
[0052] In the above embodiments, the travel speed of the boom lift can be dynamically adjusted by segmented distance thresholds. This can avoid emergency braking when the boom lift is close to an obstacle and prevent collisions caused by excessive travel speed, thereby improving the operational safety of the boom lift.
[0053] As described above, this embodiment of the application can deploy a center-position detection switch between the vehicle chassis and the slewing mechanism of the telescopic boom lift. This allows the travel direction of the telescopic boom lift to be determined before controlling its movement, preventing it from traveling in the opposite direction to the ideal direction and thus avoiding collisions with obstacles that could compromise its safety. Furthermore, this embodiment can also deploy a distance measuring sensor at the end of the slewing mechanism connected to the boom, enabling timely and accurate sensing of the distance between the telescopic boom lift and obstacles. This further prevents collisions and damage to the telescopic boom lift. Compared to existing methods that rely on the operator's experience to avoid collisions, this implementation is more accurate, avoids misjudgments, and ensures the safety and efficiency of telescopic boom lift transportation.
[0054] In one possible implementation, the center position detection switch includes a first switching component and a second switching component; wherein the first switching component is deployed on the vehicle chassis; and the second switching component is deployed on the slewing mechanism.
[0055] At this time, if the first switch component and the second switch component come into contact, the switch signal indicates that the straight boom aerial work platform is traveling in the forward direction.
[0056] For example, such as Figure 1 As shown, the neutral detection switch 16 includes a first switch component 161 and a second switch component 162. At this time, the first switch component 161 and the second switch component 162 are in contact. At this time, the switch signal indicates that the travel direction of the boom lift is forward.
[0057] If the first and second switch components are not in contact, the switch signal indicates that the straight boom aerial work platform is traveling in the opposite direction.
[0058] For example, see Figure 2 , Figure 2 A structural schematic diagram of another straight boom aerial work platform provided in this application. (See attached diagram.) Figure 2 As shown, the first switch component 161 and the second switch component 162 included in the neutral position detection switch 16 are not in contact. At this time, the switch signal indicates that the travel direction of the boom lift is reverse.
[0059] For example, see Figure 3 , Figure 3 This application provides a schematic diagram of the structure of a mid-position detection switch, wherein the first switch component 161 and the second switch component 162 included in the mid-position detection switch can be as shown in the figure.
[0060] This implementation method enables simple and accurate identification of the travel direction of a boom lift by deploying the first and second switch components in the center position detection switch separately.
[0061] In one possible implementation, the drive unit of the straight boom aerial work platform provided in this application embodiment includes at least a brake valve.
[0062] At this time, the electronic control unit, upon receiving a first distance signal, controls the brake valve to close according to a generated first control command, thereby stopping the telescopic boom aerial work platform. The first distance signal indicates that the distance between the telescopic boom aerial work platform and the obstacle is less than a first preset threshold.
[0063] Optionally, the brake valve can be used to control the brake pads of the boom lift. When the brake valve is open, the brake pads are separated from the tires of the boom lift, allowing the tires to move normally. If the brake valve is closed, the brake pads are in contact with the tires of the boom lift, preventing the tires from moving and thus stopping the boom lift.
[0064] In the above embodiments, the brake valve can be used to control the telescopic boom aerial work platform to stop moving, thereby forcibly shutting down the power system of the telescopic boom aerial work platform, ensuring that the telescopic boom aerial work platform cannot continue to move when it is too close to an obstacle, thus avoiding the risk of collision.
[0065] In one possible implementation, the telescopic boom aerial work platform provided in this application embodiment further includes a camera sensor; the camera sensor is used to acquire image data including the telescopic boom aerial work platform and obstacles.
[0066] Optionally, the camera sensor can be a CMOS camera, a front-view camera, a fisheye camera, a surround-view camera, a 3D ToF sensor, etc. The type of camera sensor is not limited here, as long as it can be implemented.
[0067] At this point, by installing camera sensors in the boom lift, a direct and accurate perception of the surrounding environment of the boom lift can be achieved.
[0068] Furthermore, the telescopic boom aerial work platform provided in this application embodiment also includes a display screen; wherein, the display screen is used to receive and display image data, and after receiving the distance signal collected by the distance measuring sensor, display the distance between the telescopic boom aerial work platform and the obstacle.
[0069] At this time, the display screen can intuitively and clearly show the image data between the boom lift and the obstacle, as well as the distance between the boom lift and the obstacle, thereby improving the operator's accuracy and precision in controlling the vehicle.
[0070] Optionally, in cases where the telescopic boom aerial work platform also includes a display screen, the electronic control unit is also used for:
[0071] If the received distance signal is the second distance signal, the generated alarm information will be sent to the display screen for display; wherein, the second distance signal indicates that the distance between the boom lift and the obstacle is greater than or equal to the first preset threshold and less than the second preset threshold.
[0072] In one example, the alarm information can be text, graphic, voice, or sound, etc. There is no limitation on the type of alarm information displayed on the screen, as long as it can be implemented.
[0073] Optionally, the straight boom aerial work platform may also include alarm lights, buzzers, etc., and when a distance signal is received as a second distance signal, an alarm will be triggered by flashing the alarm lights or activating the buzzer.
[0074] Optionally, an alarm light / buzzer can be deployed on one side of the working platform of the boom lift, so that the operator of the boom lift can receive alarm information in a timely manner.
[0075] In one possible implementation, the display screen of the straight boom aerial work platform provided in this application embodiment is also used to display a control panel. In this case, the control panel is used to adjust the aforementioned first preset threshold and / or second preset threshold.
[0076] At this time, after adjusting the first preset threshold and / or the second preset threshold via the control panel, the display screen is also used to send the adjusted first preset threshold and / or the second preset threshold to the electronic control unit. The electronic control unit can then generate vehicle control commands based on the adjusted first preset threshold and / or the second preset threshold to control the movement of the telescopic boom aerial work platform.
[0077] This implementation method can improve the flexibility and versatility of the control of the telescopic boom aerial work platform to meet the actual needs of different application scenarios.
[0078] In one possible implementation, to further ensure that the boom lift vehicle does not collide with obstacles, the boom lift vehicle provided in this application embodiment has redundant distance measuring sensors deployed at the end of the slewing mechanism connected to the boom.
[0079] Optionally, redundant ranging sensors can be of the same or different type as the ranging sensor; this is not limited here.
[0080] At this point, redundant distance sensors can be used to verify the distance sensors, and / or to detect the distance between the boom lift and obstacles even if the distance sensors fail.
[0081] In one possible implementation, the drive unit of the straight boom aerial work platform provided in this application includes at least an operating handle and a foot switch.
[0082] The control handle is used to determine the travel direction of the telescopic boom aerial work platform, and the foot switch is an enable switch. When the foot switch is pressed, the telescopic boom aerial work platform is allowed to travel in the direction indicated by the control handle.
[0083] Based on this, the electronic control unit is also used to receive the reset signals corresponding to the operating handle and foot switch respectively, and when it is determined that the reset signal indicates that the operating handle and foot switch are reset, it controls the movement of the straight boom aerial work vehicle according to the generated vehicle control command.
[0084] This avoids the problem of the boom lift's direction of travel not matching the ideal direction when the operating handle and foot switch are not reset.
[0085] Optionally, after the brake valve of the boom lift is closed according to the first control command mentioned above, the foot switch becomes ineffective. At this time, after resetting the operating handle and the foot switch, the boom lift can continue to be controlled to move.
[0086] Finally, it should be noted that other embodiments of this utility model will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.
Claims
1. A straight arm type aerial platform vehicle characterized by, It includes at least: vehicle chassis, boom, slewing mechanism, electronic control unit, and drive unit; among which, A center position detection switch is deployed between the vehicle chassis and the slewing mechanism; the center position detection switch is used to determine the driving direction of the straight boom aerial work platform. A distance sensor is deployed at the end of the slewing mechanism connected to the boom; the distance sensor is used to determine the distance between the straight boom aerial work platform and the obstacle; The electronic control unit is used to receive the switch signal from the center detection switch, the distance signal from the distance sensor, and the drive status of the drive unit; and to control the movement of the straight boom aerial work vehicle according to the generated vehicle control command; the vehicle control command is generated based on the switch signal, the distance signal, and the drive status.
2. The straight arm aerial device of claim 1, wherein, The center position detection switch includes a first switch component and a second switch component; wherein, the first switch component is deployed on the vehicle chassis; and the second switch component is deployed on the slewing mechanism; If the first switch component and the second switch component come into contact, the switch signal indicates that the straight boom aerial work platform is traveling in the forward direction. If the first switch component and the second switch component are not in contact, the switch signal indicates that the straight boom aerial work platform is traveling in the opposite direction.
3. The straight arm aerial device of claim 1, wherein, The drive unit includes at least a brake valve; the electronic control unit is used for: When the received distance signal is a first distance signal, the brake valve is controlled to close according to the generated first control command, so as to stop the straight boom aerial work platform from moving; wherein, the first distance signal indicates that the distance between the straight boom aerial work platform and the obstacle is less than a first preset threshold.
4. The straight arm aerial device of claim 1, wherein, It also includes a camera sensor; the camera sensor is used to acquire image data including the boom lift and the obstacle.
5. The straight boom aerial work platform according to claim 4, characterized in that, It also includes a display screen; wherein the display screen is used to receive and display the image data, and after receiving the distance signal collected by the ranging sensor, to display the distance between the boom lift and the obstacle.
6. The straight boom aerial work platform according to claim 5, characterized in that, The electronic control unit is also used for: If the received distance signal is the second distance signal, the generated alarm information is sent to the display screen for display; wherein, the second distance signal indicates that the distance between the boom lift and the obstacle is greater than or equal to the first preset threshold and less than the second preset threshold.
7. The straight boom aerial work platform according to claim 6, characterized in that, The display screen is also used to display a control panel; the control panel is used to adjust the first preset threshold and / or the second preset threshold; the display screen is also used to send the first preset threshold and / or the second preset threshold adjusted by the control panel to the electronic control unit.
8. The straight boom aerial work platform according to claim 1, characterized in that, The end of the slewing mechanism connected to the boom is equipped with redundant distance measuring sensors.
9. The straight boom aerial work platform according to any one of claims 1-8, characterized in that, The obstacle indicates the container; the distance sensor is used to determine the distance between the traveling direction of the boom lift and the bottom of the container.
10. The straight boom aerial work platform according to claim 9, characterized in that, The drive unit includes at least an operating handle and a foot switch; The electronic control unit is also used to receive reset signals corresponding to the operating handle and the foot switch respectively, and when it is determined that the reset signal indicates that the operating handle and the foot switch are reset, it controls the movement of the straight boom aerial work vehicle according to the generated vehicle control command.