A support leg telescopic detection mechanism and an aerial working vehicle

Abstract

The utility model discloses a kind of support leg telescopic detection mechanism and aerial work vehicle, it is related to engineering vehicle technical field, to solve the problem that current technical means cannot accurately determine whether support leg is in extended state or retracted state, the detection mechanism is used to set on the oil cylinder of driving support leg telescopic, comprising: movable rod, movable by limiting piece is in oil cylinder, the moving direction of movable rod is consistent with the telescopic direction of the piston rod of oil cylinder, and the end of movable rod is connected with the extended end of piston rod by cross byte;Detection component is located in movable rod;Sensor is located on limiting piece, and sensor is used for real-time detection position change of detection component;So set, the telescopic state of support leg can be accurately detected, improve the safety of aerial work platform, ensure that movable rod and piston rod always maintain parallel state, ensure that detection mechanism can normally work under various working conditions, enhance the adaptability and reliability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of engineering operation vehicle technology, and more specifically, to a leg extension detection mechanism and an aerial work vehicle. Background Technology

[0002] In aerial work platform applications, chassis stability is crucial for operational safety. A key feature of this chassis is the presence of extendable and retractable outriggers on both the front and rear axles. This design allows for more even distribution of outriggers, better adapting to different working environments and terrain conditions. The extension and retraction of the outriggers enables flexible adjustment of the chassis's support range and stability, thereby improving the safety and reliability of the equipment during aerial work operations.

[0003] However, accurately determining whether the outriggers are extended or retracted is a crucial issue for operators. Failure to accurately determine the outrigger status may lead to misoperation, thereby affecting equipment stability and operational safety.

[0004] Therefore, how to solve the problem that existing technical means cannot accurately determine whether the outrigger is in an extended or retracted state is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a leg extension detection mechanism that can accurately detect the extension state of the leg, ensure that the moving rod and the piston rod always remain parallel, and enable the detection mechanism to work normally under various working conditions.

[0006] Another objective of this invention is to provide an aerial work platform including the aforementioned outrigger extension detection mechanism, which can improve operational safety and stability, enhance operational accuracy, and improve environmental adaptability.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A leg extension / retraction detection mechanism, mounted on a hydraulic cylinder that drives the extension / retraction of the outrigger, includes:

[0009] The movable rod is movably mounted on the hydraulic cylinder via a limiting component. The moving direction of the movable rod is consistent with the extension and retraction direction of the piston rod of the hydraulic cylinder. One end of the movable rod is connected to the extended end of the piston rod via a cross joint.

[0010] The detection component is located on the movable rod;

[0011] The sensor, mounted on the limiting component, is used to detect changes in the position of the detection component in real time.

[0012] Preferably, the detection component includes a first detection head and a second detection head respectively disposed at both ends of the movable rod, wherein the first detection head is used to connect the ten-way connector to the movable rod.

[0013] Preferably, the first detection head, the second detection head, and the movable rod are connected by threads.

[0014] Preferably, the first detection head and the second detection head are cylindrical structures, and the end of the first detection head that is connected to the decant is provided with a U-shaped opening.

[0015] Preferably, there are three sensors, one of which is used to detect the first detection head, and the other two are used to detect the second detection head.

[0016] Preferably, the sensor is electrically connected to an external controller, which receives the sensor's detection signal, determines the extension and retraction state of the piston rod based on the detection signal, and issues corresponding prompts to the operator.

[0017] Preferably, the sensor is a proximity switch.

[0018] Preferably, the extended end of the piston rod is provided with a support, and the ten-pin is hinged to the support and the first detection head respectively by a connecting pin.

[0019] Preferably, the support has a U-shaped structure, and includes a base plate and two connecting plates perpendicular to the surface of the base plate, with connecting holes provided on the connecting plates.

[0020] An aerial work platform includes a chassis, with cylinders and outriggers on both the front and rear axles of the chassis. The outriggers are slidably connected to the chassis via sliders, and the cylinders are equipped with outrigger extension and retraction detection mechanisms as described above.

[0021] The outrigger extension / retraction detection mechanism provided by this utility model is installed on the hydraulic cylinder that drives the outrigger extension / retraction. This detection mechanism is specifically designed to cooperate with the hydraulic cylinder and is directly applied to the key component driving the outrigger extension / retraction, ensuring the accuracy and reliability of the detection. Specifically, it includes a movable rod, a limiting component, a cross joint, a detection component, and a sensor. The movable rod is movably mounted on the hydraulic cylinder through the limiting component. The movement direction of the movable rod is consistent with the extension / retraction direction of the piston rod of the hydraulic cylinder, ensuring that the movement of the movable rod can truly reflect the extension / retraction state of the piston rod, thereby achieving accurate detection of the outrigger extension / retraction state. One end of the movable rod is connected to the extended end of the piston rod through the cross joint, which can effectively transmit motion while reducing friction and wear during movement and extending service life. The detection component is located on the movable rod, and the sensor is located on the limiting component and is used to detect the position change of the detection component in real time. The detection component can directly reflect the position change of the movable rod, and thus indirectly reflect the extension / retraction state of the piston rod, enabling the sensor to more accurately and stably detect the position change of the detection component in real time, thereby achieving dynamic monitoring of the outrigger extension / retraction state.

[0022] The outrigger extension detection mechanism, designed in the above manner, improves the safety of the aerial work platform by accurately detecting the extension and retraction status of the outriggers. By adding a ten-joint structure between the movable rod and the piston rod, the degree of freedom can be effectively released. The ten-joint structure can automatically adjust the relative position of the movable rod and the piston rod, ensuring that the movable rod and the piston rod always remain parallel, thereby avoiding jamming problems caused by non-parallelism. This ensures that the detection mechanism can work normally under various working conditions, enhancing the adaptability and reliability of the equipment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is an installation diagram of the outrigger extension detection mechanism provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the outrigger extension detection mechanism provided by this utility model.

[0026] Figure label:

[0027] 10 - Hydraulic cylinder, 20 - Chassis, 30 - Outriggers;

[0028] 1-Modular lever;

[0029] 2-Limiting components;

[0030] 3-ten-byte;

[0031] 4-Detection component, 41-First detection head, 42-Second detection head;

[0032] 5-Sensors;

[0033] 6-Support. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] It should be noted that the directional terms such as "up," "down," "left," and "right" used below are defined based on the accompanying diagrams in the instruction manual.

[0037] The core of this invention is to provide a leg extension detection mechanism that can accurately detect the extension state of the outrigger 30, ensuring that the movable rod 1 and the piston rod always remain parallel, so that the detection mechanism can work normally under various working conditions. Another core aspect of this invention is to provide an aerial work platform vehicle that includes the above-mentioned leg extension detection mechanism, which can improve operational safety and stability, increase operational accuracy, and enhance environmental adaptability.

[0038] Please refer to Figure 1 A leg extension detection mechanism is installed on the hydraulic cylinder 10 that drives the extension of the outrigger 30. The detection mechanism is specially designed to cooperate with the hydraulic cylinder 10 and is directly applied to the key component that drives the extension of the outrigger 30, ensuring the accuracy and reliability of the detection.

[0039] Specifically, the system includes a movable rod 1, a limiting component 2, a cross-shaped connector 3, a detection component 4, and a sensor 5. The movable rod 1 is movably mounted on the hydraulic cylinder 10 via the limiting component 2. The moving direction of the movable rod 1 is consistent with the extension and retraction direction of the piston rod of the hydraulic cylinder 10, ensuring that the movement of the movable rod 1 can accurately reflect the extension and retraction state of the piston rod, thereby achieving precise detection of the extension and retraction state of the outrigger 30. One end of the movable rod 1 is connected to the extended end of the piston rod via the cross-shaped connector 3, which can effectively transmit motion while reducing friction and wear during movement and extending service life. The detection component 4 is mounted on the movable rod 1, and the sensor 5 is mounted on the limiting component 2 and is used to detect the position change of the detection component 4 in real time. The detection component 4 can directly reflect the position change of the movable rod 1, and thus indirectly reflect the extension and retraction state of the piston rod, enabling the sensor 5 to more accurately and stably detect the position change of the detection component 4 in real time, thereby achieving dynamic monitoring of the extension and retraction state of the outrigger 30.

[0040] A cross-shaped connector 3 is added between the movable rod 1 and the piston rod to release the freedom of the movable rod 1 and prevent it from getting stuck with the limiting component 2 during extension and retraction. In actual operation, the outrigger 30 and the frame may not be parallel vertically or horizontally due to terrain or installation errors. The cross-shaped connector 3 can adapt to this non-parallel state, ensuring that the movable rod 1 and the piston rod always remain parallel, thereby avoiding jamming problems caused by non-parallelism and improving the movement flexibility and reliability of the equipment.

[0041] It should be noted that the manufacturing and installation process of the 10-byte 3 connection structure is relatively simple. The 10-byte 3 is a mature mechanical connection component with standardized dimensions and interfaces, facilitating procurement and processing. During installation, assembly is completed simply by connecting the 10-byte 3 to the support 6 of the movable rod 1 and the piston rod, greatly reducing manufacturing and installation difficulty and shortening the production cycle. The 10-byte 3 structure is also relatively inexpensive and easy to procure and replace.

[0042] The outrigger extension detection mechanism, designed in the above manner, improves the safety of the aerial work platform by accurately detecting the extension state of the outrigger 30. By adding a cross-shaped structure 3 between the movable rod 1 and the piston rod, the degree of freedom can be effectively released. The cross-shaped structure 3 can automatically adjust the relative position of the movable rod 1 and the piston rod, ensuring that the movable rod 1 and the piston rod always remain parallel, thereby avoiding jamming problems caused by non-parallelism. This ensures that the detection mechanism can work normally under various working conditions, enhancing the adaptability and reliability of the equipment.

[0043] In the above embodiment, the detection component 4 includes a first detection head 41 and a second detection head 42 respectively disposed at both ends of the movable rod 1. The first detection head 41 is used to connect the ten-element 3 and the movable rod 1.

[0044] It should be noted that by setting a first detection head 41 and a second detection head 42 at both ends of the movable rod 1, dual detection of the position of the movable rod 1 can be achieved, thereby improving the accuracy and reliability of the detection. This dual detection mechanism ensures that even if one detection head fails, the other detection head can still provide accurate data, enhancing the redundancy and reliability of the system.

[0045] The first detection head 41 can also be connected to the support 6 via a ball joint; this is not a restriction, as long as it releases the freedom of the movable rod 1 and ensures that the movable rod 1 does not jam against the limiting member 2 during extension and retraction. In equipment such as aerial work platforms, due to the complexity and variability of the working environment, there may be a certain angular deviation between the outrigger 30 and the frame. The ball joint connection can automatically compensate for this deviation, ensuring that the detection head can always accurately detect the extension and retraction state of the outrigger 30.

[0046] In the above situation, the first detection head 41, the second detection head 42 and the movable rod 1 are connected by threads.

[0047] Understandably, threaded connections are a common mechanical connection method, providing high connection strength. Through threaded connections, the first detection head 41 and the second detection head 42 can be firmly fixed to the movable rod 1, ensuring that the detection heads will not loosen or fall off during the extension and retraction of the outrigger 30, thus guaranteeing the stability and reliability of the detection. The installation process of threaded connections is relatively simple; operators only need to screw the detection head into the threaded hole on the movable rod 1 to complete the installation. This installation method does not require complex tools or equipment, saving installation time and labor costs. Because threaded connections are easy to disassemble, when maintenance, replacement, or adjustment of the detection heads is required, operators can quickly remove the detection heads from the movable rod 1, improving the convenience of maintenance. Threaded connections have a certain degree of flexibility, and can accommodate, to some extent, minor dimensional differences or manufacturing tolerances between the movable rod 1 and the detection heads. This adaptability helps improve the product's versatility and interchangeability. In practical applications, the first detection head 41, the second detection head 42, and the movable rod 1 can also be connected by welding; there are no restrictions on this.

[0048] Furthermore, the first detection head 41 and the second detection head 42 are cylindrical structures, and the end of the first detection head 41 that is connected to the 3-byte byte is provided with a U-shaped opening.

[0049] It should be noted that the cylindrical structure of the detection head simplifies the connection with the movable rod 1. The U-shaped opening provides a simple and effective connection method, eliminating the need for complex machining or fasteners, thereby reducing manufacturing costs and assembly difficulty. The U-shaped opening design ensures a more secure connection between the first detection head 41 and the ten-element 3, preventing the first detection head 41 from rotating or loosening during operation, thus improving the reliability of the connection and the stability of the entire detection system. The cylindrical structure and U-shaped opening design not only enhance the functionality of the first detection head 41 but also make the entire detection mechanism more compact and efficient, helping to reduce space occupation and improve the overall performance of the equipment.

[0050] In the above embodiment, the sensor 5 is provided with three sensors, one of which is used to detect the first detection head 41, and the other two are used to detect the second detection head 42.

[0051] Understandably, by setting up three sensors 5, two of which are dedicated to detecting the second detection head 42, even if one sensor 5 fails, the other sensor 5 can still continue to monitor the status of the second detection head 42, thereby improving the redundancy and reliability of the entire detection system. Simultaneous monitoring of the second detection head 42 by two sensors 5 provides dual verification, helping to improve the accuracy of the detection data. This dual detection mechanism can reduce potential misreadings or errors from a single sensor 5, ensuring the accuracy of the detection results. The configuration of three sensors 5 offers more installation options and layout flexibility, allowing the selection of the most suitable sensor 5 installation position based on the actual mechanical structure and operational requirements to achieve optimal detection results.

[0052] The sensor 5 is fixed to the limiting member 2 by the mounting plate. One sensor 5 for detecting the first detection head 41 is set at the end of the mounting plate near the first detection head 41, and the other two sensors 5 for detecting the second detection head 42 are set at the end of the mounting plate near the second detection head 42.

[0053] Based on the above embodiment, sensor 5 is electrically connected to an external controller. The external controller is used to receive the detection signal from sensor 5, determine the extension and retraction state of the piston rod based on the detection signal, and issue corresponding prompts to the operator.

[0054] It should be noted that the external controller can receive the detection signals from sensor 5 in real time, meaning that the extension and retraction status of the piston rod can be monitored instantly. After determining the status based on these signals, the controller can quickly provide feedback to the operator, thereby improving the real-time performance and response speed of the operation. Operators can easily understand the current status of the piston rod based on the prompts issued by the controller, without the need for direct observation or manual inspection, which greatly improves the convenience and efficiency of operation.

[0055] In the above embodiment, sensor 5 is a proximity switch.

[0056] Understandably, proximity switches can perform detection without direct contact with the object being detected, reducing mechanical wear and extending the lifespan of sensor 5 and related components. Because there is no mechanical contact, the operation of proximity switches is unaffected by dust, dirt, or other environmental factors, improving detection reliability. Proximity switches provide a fast switching response, which is particularly important for applications requiring real-time monitoring, ensuring timely and accurate detection of the piston rod's extension and retraction. Proximity switches are typically small and lightweight, making them easy to install in limited spaces. Furthermore, their non-contact nature simplifies maintenance, reducing maintenance costs.

[0057] In one feasible embodiment, a first proximity switch is used to detect the first detection head 41 in real time. When the first proximity switch can detect the first detection head 41, the movable rod 1 is in a retracted state, and the support leg 30 is in a retracted state. Two second proximity switches are used to detect the second detection head 42 in real time. When either of the two second proximity switches can detect the second detection head 42, the movable rod 1 is in an extended state, and the support leg 30 is in an extended state.

[0058] In a preferred embodiment, the extended end of the piston rod is provided with a support 6, and the crossbar 3 is hinged to the support 6 and the first detection head 41 respectively by a connecting pin.

[0059] It should be noted that by setting a support 6 at the extended end of the piston rod and hinged the support 6 to the first detection head 41 using a connecting pin via a ten-joint 3, the stability of the entire structure can be enhanced. The support 6 provides a stable base point, helping to maintain the correct position of the detection head during operation. The hinged structure allows the first detection head 41 to move flexibly within a certain range while maintaining synchronized extension and retraction with the piston rod. This precise synchronization helps improve the accuracy of the detection head's position detection, thereby improving the accuracy of the entire system. The hinged installation method using a connecting pin simplifies the assembly process, making the installation, adjustment, and maintenance of the support 6 and the first detection head 41 more convenient. The design of the connecting pin also facilitates quick disassembly for necessary maintenance or replacement.

[0060] In the above case, the support 6 has a U-shaped structure. The support 6 includes a base plate and two connecting plates perpendicular to the surface of the base plate. The connecting plates are provided with connecting holes.

[0061] Understandably, the U-shaped support 6 design provides higher structural strength and stability. The combination of the base plate and the vertical connecting plate effectively disperses and bears forces from different directions, thereby enhancing the overall load-bearing capacity of the support 6. The connecting holes on the connecting plate facilitate the installation and fixing of the cross-shaped element 3, ensuring that the connection between components is both firm and stable, improving the reliability of the entire system.

[0062] Aerial work platform vehicle includes a chassis 20. Both the front and rear axles of the chassis 20 are equipped with hydraulic cylinders 10 and outriggers 30. The outriggers 30 are slidably connected to the chassis 20 via sliders. The hydraulic cylinders 10 are equipped with the outrigger extension / retraction detection mechanism described above. The chassis is provided with slide rails, and the outriggers 30 have nylon sliders in the four directions (up, down, left, and right). The nylon sliders slide along the slide rails. During the extension / retraction of the outriggers 30, the cooperation between the nylon sliders and the slide rails prevents steel-to-steel friction, ensuring a smooth extension / retraction process. The structure of other parts of this aerial work platform vehicle is described in reference to existing technologies and will not be repeated here.

[0063] It should be noted that by accurately detecting the extension and retraction status of the outriggers 30, the correct deployment and retraction of the outriggers during operation can be ensured, thereby improving the stability and safety of the aerial work platform. The outrigger extension and retraction detection mechanism can monitor the position of the outriggers 30 in real time, ensuring the stability of the work platform when operating on uneven or sloping ground, reducing the risk of rollover. Operators can quickly understand the extension and retraction status of the outriggers 30 through the detection mechanism, eliminating the need for manual inspection and improving the convenience and efficiency of operation.

[0064] In summary, the outrigger extension detection mechanism provided by this utility model allows the piston rod of the hydraulic cylinder 10 to pull the movable rod 1 to move synchronously within the slide of the limiting member 2. The sensor 5, located on the mounting plate above the limiting member 2, detects the position of the detection heads at both ends of the movable rod 1, thereby accurately identifying whether the outrigger 30 is extended or retracted, ensuring the stability and safety of the aerial work platform. The addition of a cross-shaped structure 3 between the movable rod 1 and the piston rod effectively releases the degree of freedom. The cross-shaped structure 3 automatically adjusts the relative position of the movable rod 1 and the piston rod, ensuring that they always remain parallel, thus avoiding jamming caused by non-parallelism. This ensures the detection mechanism can operate normally under various working conditions, enhancing the adaptability and reliability of the equipment.

[0065] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0067] The foregoing has provided a detailed description of the outrigger telescopic detection mechanism and aerial work platform provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A leg retraction detection mechanism for being provided on an oil cylinder (10) that drives leg retraction, characterized by, include: The movable rod (1) is movably disposed on the oil cylinder (10) by means of the limiting member (2). The moving direction of the movable rod (1) is consistent with the extension and retraction direction of the piston rod of the oil cylinder (10). One end of the movable rod (1) is connected to the extended end of the piston rod by means of the ten-joint (3). The detection component (4) is located on the movable rod (1); A sensor (5) is disposed on the limiting member (2), and the sensor (5) is used to detect the position change of the detection component (4) in real time.

2. The outrigger extension detection mechanism according to claim 1, characterized in that, The detection component (4) includes a first detection head (41) and a second detection head (42) respectively disposed at both ends of the movable rod (1). The first detection head (41) is used to connect the decant (3) and the movable rod (1).

3. The outrigger extension / retraction detection mechanism according to claim 2, characterized in that, The first detection head (41), the second detection head (42), and the movable rod (1) are connected by threads.

4. The outrigger extension detection mechanism according to claim 3, characterized in that, The first detection head (41) and the second detection head (42) are cylindrical structures, and the end of the first detection head (41) connected to the ten-byte (3) is provided with a U-shaped opening.

5. The outrigger extension detection mechanism according to any one of claims 2-4, characterized in that, The sensor (5) is provided in three parts, one of which is used to detect the first detection head (41), and the other two are used to detect the second detection head (42).

6. The outrigger extension detection mechanism according to claim 5, characterized in that, The sensor (5) is electrically connected to an external controller. The external controller is used to receive the detection signal from the sensor (5), determine the extension and retraction state of the piston rod based on the detection signal, and issue corresponding prompts to the operator.

7. The outrigger extension detection mechanism according to claim 6, characterized in that, The sensor (5) is a proximity switch.

8. The outrigger extension detection mechanism according to claim 7, characterized in that, The piston rod has a support (6) at its extended end, and the ten-pin (3) is hinged to the support (6) and the first detection head (41) respectively by connecting pins.

9. The outrigger extension detection mechanism according to claim 8, characterized in that, The support (6) has a U-shaped structure and includes a base plate and two connecting plates perpendicular to the surface of the base plate. The connecting plates are provided with connecting holes.

10. An aerial work platform vehicle, characterized in that, Includes a chassis (20), the front axle and the rear axle of the chassis (20) are equipped with hydraulic cylinders (10) and outriggers (30), the outriggers (30) are slidably connected to the chassis (20) by a slider, and the hydraulic cylinder (10) is equipped with an outrigger extension detection mechanism as described in any one of claims 1-9.

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