Work platform module and aerial work machine

Abstract

The application relates to the technical field of engineering machinery, and discloses a work platform module and an aerial work machine. The work platform module comprises a work platform, a swing driving module and an angle detection module; the swing driving module has a driving part and a base part, the driving part is in driving connection with the work platform and is used for driving the work platform to rotate around the swing axis of the driving part; the angle detection module comprises a movable seat assembly, a fixed seat assembly and an angle sensor which are arranged in sequence along the swing axis, the movable seat assembly is arranged on the work platform, the fixed seat assembly is arranged on the movable seat assembly and is connected with the base part, the movable seat assembly is in rotary fit with the fixed seat assembly, the angle sensor is arranged on the fixed seat assembly, a detection rotating shaft of the angle sensor is in rotary fit with the movable seat assembly, and the axis of the detection rotating shaft is coaxially arranged with the swing axis. The angle detection module in the work platform module disclosed by the application has the advantages of compact structure, guaranteed detection precision, good reliability and long service life.

Description

Technical Field

[0001] This application belongs to the field of engineering machinery technology, specifically relating to a work platform module and aerial work machinery. Background Technology

[0002] With the development of intelligent technology in construction machinery, especially in the field of high-altitude operations, such as building facade cleaning, ship surface painting, and power maintenance, high-altitude work robots have been widely used. To better perform tasks and improve safety, the measurement of the swing angle of the aerial work platform is a key function of high-altitude work machinery; its measurement accuracy directly affects the robot's operational accuracy and safety.

[0003] Currently, a common and effective solution is to use angle sensors to measure the swing angle. However, existing angle sensors include contact and non-contact types. Contact sensors typically use gear structures, which are prone to inaccurate data readings due to gear wear. Non-contact sensors mainly use magnetic structures, which are also prone to inaccuracy. Therefore, the existing angle sensor mounting structures all suffer from unreliable accuracy, which obviously leads to poor operational accuracy and safety issues. Utility Model Content

[0004] The purpose of this application is to provide a work platform module and aerial work machinery to solve the problem of unreliable accuracy in the installation structures of existing contact and non-contact angle sensors.

[0005] To achieve the above objectives, the first aspect of this application provides a work platform module, comprising: Operating platform; The swing drive module has a drive unit and a base unit. The drive unit is driven to the work platform and is used to drive the work platform to rotate around the swing axis of the drive unit. The base unit is used to connect to the boom. An angle detection module includes a movable seat assembly, a fixed seat assembly, and an angle sensor arranged sequentially along the swing axis. The movable seat assembly is disposed on the working platform, the fixed seat assembly is disposed on the movable seat assembly and connected to the base, the movable seat assembly and the fixed seat assembly are rotatably coupled, and the angle sensor is disposed on the fixed seat assembly. The detection shaft of the angle sensor is anti-rotatingly engaged with the movable seat assembly, and the axis of the detection shaft is coaxial with the swing axis.

[0006] As a further improvement to the above technical solution: In some embodiments, the mounting bracket assembly includes: The fixed base body is rotatably mounted on the movable base assembly, and a slot is provided on one side of the fixed base body; The card holder is arranged along the swing axis. One end of the card holder is engaged in the card slot and connected to the fixed base body through a limiting pin, and the other end is connected to the base part.

[0007] In some embodiments, the card holder has an elongated hole at one end near the card slot, and the length direction of the elongated hole is parallel to the swing axis; The limiting pin passes through the elongated hole and connects to the fixed base body.

[0008] In some embodiments, the fixed base body has a through clearance hole along the swing axis, and the movable base assembly extends into the clearance hole and forms an anti-rotation fit with the detection shaft.

[0009] In some embodiments, the movable seat assembly includes a rotating disk disposed on the work platform, and a limiting shaft portion is provided on the side of the rotating disk away from the work platform, the limiting shaft portion being inserted into the clearance hole; The fixed base assembly is rotatably engaged with the limiting shaft, and the detection shaft is anti-rotating engaged with the limiting shaft.

[0010] In some embodiments, the clearance hole has a first aperture segment and a second aperture segment along its own axis, the diameter of the first aperture segment being smaller than the diameter of the second aperture segment, and the second aperture segment being disposed away from the rotating disk; The movable seat assembly further includes a limiting member, which is disposed on the limiting shaft and located in the second aperture section. The width of the limiting member is greater than the diameter of the first aperture section along the radial direction of the second aperture section.

[0011] In some embodiments, the limiting member and the limiting shaft are threaded or snap-fitted together.

[0012] In some embodiments, the end face of the limiting shaft is provided with an assembly hole, and the detection shaft is inserted into the assembly hole; The assembly hole and the detection shaft are connected by a key; or, the assembly hole is provided with a first anti-rotation plane extending along its own axial direction, and the detection shaft is provided with a second anti-rotation plane extending along its own axial direction, and the first anti-rotation plane and the second anti-rotation plane contact each other to form an anti-rotation fit.

[0013] In some embodiments, the angle detection module further includes a metal cover disposed on the mounting bracket assembly; The angle sensor is housed within the metal casing.

[0014] To achieve the above objectives, a second aspect of this application provides an aerial work platform, including the work platform module provided in the first aspect.

[0015] Compared with existing technologies, the work platform module and aerial work machinery provided in this application have at least the following beneficial effects: The work platform module provided in this application drives the work platform to rotate around the swing axis through the drive unit of the swing drive module, thereby achieving swing angle control of the work platform. The base of the swing drive module is used to connect with the boom, and at this time, the base is fixed relative to the work platform. In the angle detection module, the movable seat assembly is set on the work platform and can swing with the work platform. The fixed seat assembly is rotatably engaged with the movable seat assembly and connected to the base. Therefore, when the work platform rotates, the fixed seat assembly is fixed relative to the movable seat assembly. Since the angle sensor is set on the fixed seat assembly and the detection shaft is anti-rotating engaged with the movable seat assembly, the detection shaft will rotate synchronously with the movable seat assembly, thereby obtaining the rotation angle of the work platform in real time. Furthermore, the axis of the detection shaft is coaxially arranged with the swing axis, and a modular coaxial mechanism measurement method is adopted, which avoids the accuracy reduction problem caused by mechanical wear of traditional gear structures, improves the reliability of the angle sensor and extends its service life.

[0016] In addition, the angle detection module has a reasonable structural layout and compact design, which facilitates installation and maintenance, reducing the difficulty of operation and maintenance costs.

[0017] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 A three-dimensional structural diagram of a work platform module with a robotic arm and an electrical control box installed on it, provided for an embodiment of this application; Figure 2 An exploded view of an angle detection module in a work platform module provided in an embodiment of this application; Figure 3 A cross-sectional view of a partial structure in the work platform module provided in the embodiments of this application; Figure 4A three-dimensional structural diagram of the fixing base body in the angle detection module provided in the embodiments of this application; Figure 5 for Figure 3 A magnified view of a portion of point A in the middle; Figure 6 This is a three-dimensional structural diagram of the rotating disk in the angle detection module provided in the embodiments of this application.

[0019] Explanation of reference numerals in the attached figures 100. Operating platform module; 110. Working platform; 120. Swing drive module; 121. Drive unit; 122. Base unit; 130. Angle detection module; 131. Fixing seat assembly; 1310. Fixing seat body; 1310a. Slot; 1310b. Pin hole; 1310c. Clearance hole; 1310d. First step surface; 1311. Slot; 1311a. Elongated hole; 1312. Limiting pin; 132. Movable seat assembly; 1320. Rotary disk; 1320a. Limiting shaft; 1320b. Second step surface; 1320c. Assembly hole; 1321. Limiting component; 133. Angle sensor; 1330. Detection shaft; 134. Mounting seat; 135. Metal cover; 200. Robotic arm; 300. Electrical control box. Detailed Implementation

[0020] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0021] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0022] Example On the one hand, please refer to Figure 1 and Figure 2 This embodiment provides a work platform module 100, which can be applied to aerial work machinery. The work platform module 100 can be used in various work scenarios such as construction, equipment maintenance, ship surface painting for warehousing and logistics, and power maintenance.

[0023] The work platform module 100 includes a work platform 110, a swing drive module 120, and an angle detection module 130. The work platform 110 is a support structure for workers or equipment. Under normal working conditions, the work platform 110 is in a horizontal position. For example, a robotic arm 200, an electrical control box 300, etc. can be arranged on the work platform 110. Anti-slip textures or anti-slip mats can also be set on the work platform 110 to improve work safety.

[0024] Please see Figure 2 and Figure 3 The swing drive module 120 has a drive unit 121 and a base unit 122. The drive unit 121 can output rotational motion, and in this embodiment, the axis of this rotational motion is defined as the swing axis. The drive unit 121 of the swing drive module 120 is drivenly connected to the work platform 110 and is used to drive the work platform 110 to rotate (oscillate in the horizontal plane) around the swing axis of the drive unit 121. Figure 2 (The swing axis is indicated by the letter O in the diagram). The base part 122 is used to connect with the boom, specifically to the leveling mechanism on the boom of the aerial work platform. Thus, when the drive unit 121 is working, the base part 122 is relatively stationary relative to the drive unit 121; in other words, the base part 122 is also stationary relative to the work platform 110.

[0025] The drive unit 121 can be a hydraulic motor, servo motor, or stepper motor to output rotary motion. In this embodiment, the swing drive module 120 can be a hydraulically driven swing cylinder or an electrically driven swing cylinder.

[0026] An angle detection module 130 is used to detect the swing angle of the work platform 110 in real time. The angle detection module 130 includes a movable seat assembly 132, a fixed seat assembly 131, and an angle sensor 133 arranged sequentially along the swing axis. The movable seat assembly 132 is mounted on the work platform 110 and can rotate with the work platform 110. The fixed seat assembly 131 is mounted on the movable seat assembly 132 and connected to the base part 122, so that the fixed seat assembly 131 and the base part 122 remain relatively fixed.

[0027] In this embodiment, the movable seat assembly 132 and the fixed seat assembly 131 are rotatably coupled, and the angle sensor 133 is mounted on the fixed seat assembly 131; wherein, the detection shaft 1330 of the angle sensor 133 is anti-rotatingly coupled with the movable seat assembly 132. Thus, when the movable seat assembly 132 rotates with the work platform 110, the detection shaft 1330 of the angle sensor 133 will rotate synchronously. At this time, the fixed seat assembly 131 and the main body of the angle sensor 133 are in a relatively stationary state, so the main body of the angle sensor 133 can measure the rotation angle based on the amount of rotation of the detection shaft 1330.

[0028] Furthermore, the axis of the detection shaft 1330 of the angle sensor 133 is arranged coaxially with the swing axis. This avoids detection errors caused by eccentric installation and improves the accuracy and reliability of angle detection.

[0029] The work platform module 100 provided in this embodiment drives the work platform 110 to rotate around the swing axis through the drive part 121 of the swing drive module 120, thereby realizing the swing angle control of the work platform 110. The base part 122 of the swing drive module 120 is used to connect with the boom, and at this time the base part 122 is fixed relative to the work platform 110. In the angle detection module 130, the movable seat assembly 132 is mounted on the work platform 110 and can swing together with the work platform 110. The fixed seat assembly 131 is rotatably engaged with the movable seat assembly 132 and connected to the base part 122. Therefore, when the work platform 110 rotates, the fixed seat assembly 131 remains fixed relative to the movable seat assembly 132. Since the angle sensor 133 is mounted on the fixed seat assembly 131 and the detection shaft 1330 is anti-rotating engaged with the movable seat assembly 132, the detection shaft 1330 will rotate synchronously with the movable seat assembly 132, thereby obtaining the rotation angle of the work platform 110 in real time. Furthermore, the axis of the detection shaft 1330 is coaxially arranged with the swing axis. The modular coaxial mechanism measurement method avoids the accuracy reduction problem caused by mechanical wear of traditional gear structures, and improves the service life and reliability of the sensor.

[0030] In addition, the components of the angle detection module 130 are arranged sequentially along the swing axis. Its structural layout is reasonable and its structural design is compact, which facilitates installation and maintenance and reduces the difficulty of operation and maintenance costs.

[0031] To more clearly describe the technical solution of this application, the operating platform module 100 provided in this embodiment will be described in detail below: Please see Figure 2 , Figure 3 and Figure 4 The aforementioned fixing seat assembly 131 includes a fixing seat body 1310 and a retaining seat 1311. The fixing seat body 1310 is rotatably mounted on the movable seat assembly 132, and a retaining groove 1310a is provided on one side of the fixing seat body 1310; the retaining groove 1310a has a notch structure (e.g., Figure 4 As shown, this facilitates the installation of the mounting bracket 1311. The mounting bracket 1311 is arranged along the swing axis. One end of the mounting bracket 1311 is engaged in the slot 1310a and connected to the fixed base body 1310 via a limiting pin 1312. The other end is connected to the base portion 122, for example, by locking with a nut. Thus, the mounting bracket 1311 connects the fixed base body 1310 to the base portion 122 of the swing drive module 120, thereby restricting the rotation of the fixed base body 1310 with the movable base body.

[0032] In this embodiment, the angle sensor 133 is mounted on the fixed base body 1310 by means of an inverted mounting bracket 134. The mounting bracket 134 and the fixed base body 1310 are connected by bolts, screws or rivets.

[0033] Furthermore, the fixing body 1310 has a through pin hole 1310b along the width direction of the slot 1310a, and the pin hole 1310b communicates with the slot 1310a. In this way, the limiting pin 1312 can be inserted into the pin hole 1310b to restrict the slot 1311 within the fixing body 1310.

[0034] In this embodiment, the interference fit, or tight fit, between the card holder 1311 and the card slot 1310a is used to prevent the card holder 1311 from having a wobbling gap in the card slot 1310a, thereby improving the detection accuracy of the angle sensor 133.

[0035] In some embodiments, the card holder 1311 has an elongated hole 1311a at one end near the card slot 1310a, the length direction of which is parallel to the swing axis; wherein, the limiting pin 1312 passes through the elongated hole 1311a and is connected to the fixed base body 1310. The elongated hole 1311a can eliminate machining and installation errors, ensuring that the elongated hole 1311a is always aligned with the pin hole 1310b after the card holder 1311 is installed, thereby facilitating the insertion of the limiting pin 1312 and also facilitating the subsequent disassembly of the limiting pin 1312, making assembly and disassembly more convenient.

[0036] Please see Figure 3 , Figure 4 and Figure 5 The fixed base body 1310 has a through clearance hole 1310c along the swing axis. The clearance hole 1310c can accommodate the detection shaft 1330, and the movable base assembly 132 extends into the clearance hole 1310c and forms an anti-rotation fit with the detection shaft 1330. This makes the overall structure of the angle detection module 130 more compact. At the same time, the clearance hole 1310c can also protect the connection between the detection shaft 1330 and the movable base assembly 132, preventing dust or rainwater from entering directly, preventing rust, and extending service life.

[0037] Please see Figure 2 , Figure 3 , Figure 5 and Figure 6 The aforementioned movable seat assembly 132 includes a rotating disk 1320, which is disposed on the working platform 110. A limiting shaft portion 1320a is provided on the side of the rotating disk 1320 away from the working platform 110. The limiting shaft portion 1320a is inserted into the clearance hole 1310c, and there is a rotational clearance between the limiting shaft portion 1320a and the clearance hole 1310c. This achieves the rotational engagement between the fixed seat assembly 131 and the limiting shaft portion 1320a.

[0038] In this embodiment, the detection shaft 1330 and the limiting shaft portion 1320a are in a non-rotational fit. Specifically, the end face of the limiting shaft portion 1320a is provided with a mounting hole 1320c, and the detection shaft 1330 is inserted into the mounting hole 1320c, thus forming a non-rotational fit between the shaft and the hole.

[0039] In some embodiments, the mounting hole 1320c and the detection shaft 1330 are keyed together to achieve an anti-rotation fit.

[0040] In other embodiments, the assembly hole 1320c has a first anti-rotation plane extending along its own axial direction, and the detection shaft 1330 has a second anti-rotation plane extending along its own axial direction. The contact between the first and second anti-rotation planes forms a surface-to-surface fit, thereby achieving the effect of anti-rotation fit. Optionally, the assembly hole 1320c is a "D" shaped hole, and the detection shaft 1330 is a "D" shaped shaft. Of course, other shapes of holes and shafts can also be used to achieve the anti-rotation fit.

[0041] Furthermore, the clearance hole 1310c has a first diameter section and a second diameter section along its own axis. The diameter of the first diameter section is smaller than the diameter of the second diameter section, and the second diameter section is positioned away from the rotating disk 1320. The limiting shaft portion 1320a passes through the first diameter section and forms a rotational clearance with it. It is understood that since the diameter of the first diameter section is smaller than the diameter of the second diameter section, a first stepped surface 1310d can be formed between the first and second diameter sections. This first stepped surface 1310d can cooperate with the limiting member 1321 described later to restrict the vertical movement freedom of the fixed base body 1310 in the swing axis direction.

[0042] In this embodiment, the movable seat assembly 132 further includes a limiting member 1321. The limiting member 1321 is disposed on the limiting shaft portion 1320a and located in the second aperture section. Along the radial direction of the second aperture section, the width of the limiting member 1321 is greater than the diameter of the first aperture section. Thus, when the fixed seat body 1310 undergoes axial movement in the vertical direction, the limiting member 1321 is used to abut against the first stepped surface 1310d (e.g., ...). Figure 5 As shown, under normal circumstances, the limiting member 1321 does not contact the first step surface 1310d, so as to limit the degree of freedom of the up and down movement of the fixed seat assembly 131, ensure the stability after installation, and reduce unnecessary impact.

[0043] Optionally, the limiting member 1321 and the limiting shaft 1320a are threaded or snap-fitted.

[0044] Please see Figure 5 and Figure 6In some embodiments, when a threaded fit is used, for example, an external thread segment is machined on the limiting shaft portion 1320a, and the end of the limiting shaft portion 1320a near the rotating disk 1320 is set as a smooth shaft segment, with a second stepped surface 1320b formed between the smooth shaft segment and the external thread segment (e.g. Figure 5 (As shown). When the rotating disk 1320 and the fixed base body 1310 are assembled, the second step surface 1320b is located above the first step surface 1310d along the swing axis. Thus, a threaded hole adapted to the external thread section is machined in the limiting member 1321. Through the threaded pair between the threaded hole and the external thread section, and the positioning of the limiting member 1321 by the second step surface 1320b, a limiting effect is formed between the limiting member 1321 and the rotating disk 1320 on the fixed base body 1310.

[0045] In other embodiments, when a snap-fit ​​engagement is used, the limiting member 1321 may be a retaining ring, and a retaining groove 1310a for the retaining ring to engage may be provided on the limiting shaft portion 1320a. Furthermore, when the rotating disk 1320 and the fixed base body 1310 are in the assembled state, the retaining groove 1310a is located above the first stepped surface 1310d along the direction of the swing axis, thus limiting the fixed base body 1310 through the retaining ring and the rotating disk 1320.

[0046] Please see Figure 2 and Figure 3 The angle detection module 130 also includes a metal cover 135, which is mounted on the mounting base assembly 131. For example, the metal cover 135 is mounted on the mounting base body 1310 using screws or bayonet mounting. The angle sensor 133 is housed within the metal cover 135. The metal cover 135 not only protects the angle sensor 133 from external mechanical impacts and electromagnetic interference, but also provides dust and moisture protection, extending the service life of the angle sensor 133.

[0047] Furthermore, the metal cover 135 is made of a material with excellent conductivity, such as high-quality galvanized steel sheet, aluminum alloy, or copper alloy. These materials have excellent conductivity, ensuring rapid and uniform distribution of surface charge. Moreover, the metal cover 135 should be stamped, stretched, or cast from a single piece of material as much as possible to minimize seams and prevent electromagnetic leakage. A low-impedance grounding terminal (such as a copper bolt) is further provided on the outside of the metal cover 135 to ensure good grounding. In this way, the metal cover 135 forms a "Faraday cage"-like structure, which improves the sensor's high-voltage resistance, making it suitable for various operating scenarios such as power maintenance and emergency repairs. This effectively avoids the risk of breakdown due to high voltage during live-line work, ensuring the safety and stability of the angle sensor 133.

[0048] On the other hand, this embodiment also provides an aerial work platform. The aerial work platform includes the work platform module 100 provided above.

[0049] The aerial work platform machinery provided in this embodiment can be selected from equipment such as aerial work vehicles, spider lifts, or telescopic forklifts. The aerial work platform machinery has a boom, and the aforementioned work platform module 100 is installed at the end of the boom via a leveling mechanism. During operation, the rotation angle of the work platform 110 is detected in real time by the sensor module, and combined with the control system of the aerial work platform machinery, automatic leveling or precise position control of the work platform 110 is achieved, thereby improving the safety and ease of operation of aerial work.

[0050] It should be noted that, in this application, unless otherwise stated, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly 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 part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A work platform module, characterized in that, include: Operating platform (110); The swing drive module (120) has a drive part (121) and a base part (122). The drive part (121) is driven to connect with the work platform (110) and is used to drive the work platform (110) to rotate around the swing axis of the drive part (121). The base part (122) is used to connect with the boom. Angle detection module (130) includes a movable seat assembly (132), a fixed seat assembly (131), and an angle sensor (133) arranged sequentially along the swing axis. The movable seat assembly (132) is mounted on the working platform (110), the fixed seat assembly (131) is mounted on the movable seat assembly (132) and connected to the base part (122), the movable seat assembly (132) and the fixed seat assembly (131) are rotatably coupled, and the angle sensor (133) is mounted on the fixed seat assembly (131). The detection shaft (1330) of the angle sensor (133) is anti-rotatingly engaged with the movable seat assembly (132), and the axis of the detection shaft (1330) is coaxial with the swing axis.

2. The operating platform module according to claim 1, characterized in that, The mounting bracket assembly (131) includes: The fixed base body (1310) is rotatably mounted on the movable base assembly (132), and a slot (1310a) is provided on one side of the fixed base body (1310). The card holder (1311) is arranged along the swing axis. One end of the card holder (1311) is locked in the card slot (1310a) and connected to the fixed base body (1310) through the limiting pin (1312). The other end is connected to the base part (122).

3. The operating platform module according to claim 2, characterized in that, The card holder (1311) has an elongated hole (1311a) at one end near the card slot (1310a), and the length direction of the elongated hole (1311a) is parallel to the swing axis. The limiting pin (1312) passes through the elongated hole (1311a) and is connected to the fixed base body (1310).

4. The operating platform module according to claim 2, characterized in that, The fixed seat body (1310) has a through clearance hole (1310c) along the swing axis, and the movable seat assembly (132) extends into the clearance hole (1310c) and forms an anti-rotation fit with the detection shaft (1330).

5. The work platform module according to claim 4, characterized in that, The movable seat assembly (132) includes a rotating disk (1320), which is disposed on the working platform (110). A limiting shaft (1320a) is provided on the side of the rotating disk (1320) away from the working platform (110), and the limiting shaft (1320a) is inserted into the clearance hole (1310c). The fixed base assembly (131) is rotatably engaged with the limiting shaft (1320a), and the detection shaft (1330) is anti-rotating engaged with the limiting shaft (1320a).

6. The work platform module according to claim 5, characterized in that, The clearance hole (1310c) has a first aperture section and a second aperture section along its own axis. The diameter of the first aperture section is smaller than the diameter of the second aperture section, and the second aperture section is disposed away from the rotating disk (1320). The movable seat assembly (132) further includes a limiting member (1321), which is disposed on the limiting shaft portion (1320a) and located in the second aperture section. The width of the limiting member (1321) is greater than the diameter of the first aperture section along the radial direction of the second aperture section.

7. The work platform module according to claim 6, characterized in that, The limiting member (1321) and the limiting shaft (1320a) are threaded or snap-fitted.

8. The work platform module according to claim 5, characterized in that, The end face of the limiting shaft (1320a) is provided with an assembly hole (1320c), and the detection shaft (1330) is inserted into the assembly hole (1320c); The assembly hole (1320c) and the detection shaft (1330) are connected by a key; or, the assembly hole (1320c) is provided with a first anti-rotation plane extending along its own axial direction, and the detection shaft (1330) is provided with a second anti-rotation plane extending along its own axial direction, and the anti-rotation fit is formed by the contact between the first anti-rotation plane and the second anti-rotation plane.

9. The work platform module according to any one of claims 1-8, characterized in that, The angle detection module (130) also includes a metal cover (135), which is disposed on the fixing base assembly (131); The angle sensor (133) is housed within the metal cover (135).

10. An aerial work platform, characterized in that, Includes the work platform module (100) according to any one of claims 1-9.

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