Anti-extrusion triggering device of aerial work platform

Abstract

The utility model provides an anti-extrusion trigger device of an aerial work platform, which comprises trigger assemblies which are installed on the left side and the right side of a console fence of the platform and close to the interior of the platform and are of the same structure, the trigger assemblies are fixedly connected through anti-extrusion rods, and each trigger assembly comprises an installation side plate installed on the fence, a proximity switch and a rotating mechanism. One end of the rotating mechanism is rotatably connected with the bending mounting plate, the other end of the rotating mechanism is fixedly connected with any end of the anti-extrusion rod, the detection end of the proximity switch directly faces the side face of a rotating mechanism body, and the proximity switch is in signal connection with the controller. The trigger assembly and the rotating mechanism are arranged in the upper area of the side, close to an operator, of the console fence, the rotating mechanism can rotate relative to the bent mounting plate, the probability of mistaken touch is extremely small through non-contact monitoring of the proximity switch and shielding of the console fence and the rotating mechanism, a gap is reserved, and smooth triggering can be achieved when extrusion is conducted.

Description

Technical Field

[0001] This utility model relates to an anti-pinch triggering device for aerial work platforms, belonging to the field of safety protection technology for aerial work platforms. Background Technology

[0002] Aerial work platforms are mobile work platforms used for various industries, including high-altitude operations, equipment installation, and maintenance. The main types of aerial work platforms include: scissor lifts, trailer-mounted aerial work platforms, articulated boom lifts, telescopic boom lifts, aluminum alloy aerial work platforms, telescopic boom lifts, and spider lifts. The working principle involves the operator sitting on the platform, which is then lifted to the designated area by a lifting system to perform the work.

[0003] Working at heights carries inherent risks. During operation, if the platform encounters obstacles while moving, operators may be crushed, potentially causing injury. Ensuring the safety of workers and the overall construction is a persistent concern in the aerial work platform industry. Passive triggering methods are particularly common, such as the Chinese patent CN108358136A, which discloses a work platform anti-crushing system, aerial work platform, and control method. This application discloses a technical solution that includes "anti-crushing pull ropes located behind the operating platform and connected to the work platform at both ends. At least one end of the anti-crushing pull rope is connected to a pull rope switch installed on the work platform. The pull rope switch is connected to an upper controller, which has a platform action stop module." This technical solution, by setting up pull ropes with pull rope switches at both ends, triggers the pull rope switches when the pull rope is crushed and deformed, causing the entire machine to take corresponding actions to protect the platform operator.

[0004] Existing triggering structures used for anti-pinch purposes also include the principle of using the pushing force of a person falling forward to push the stop bar forward and drive the operating platform protective cover to rotate; an angle sensor set at the hinge; and the control of the platform to perform corresponding protective measures by setting the trigger angle of the angle sensor. Alternatively, a micro switch is set at the connection between the stop bar and the platform or operating platform; when a pinch occurs, the micro switch is triggered to control the platform to perform corresponding protective measures.

[0005] In the existing solutions mentioned above, the pull rope or angle sensor method has a pull rope deformation trigger stroke and an angle sensor set trigger angle range. The purpose is to determine that compression has occurred only after a certain degree of compression. Considering the operator's comfort, the action will not stop immediately to avoid discomfort caused by inertia. However, at the same time, failure to stop the platform action in time will bring greater safety risks. When using microswitches, the platform often shakes due to crosswinds or inertia during operation. The trigger sensitivity of the microswitch needs to be carefully calculated. Different trigger sensitivity ranges need to be set according to different vehicle models to avoid false triggering during normal operation. However, aerial work platform products are updated rapidly and there are many varieties. If the same microswitch setting parameters are used for different work platforms, it is obviously not compatible with all aerial work platforms.

[0006] Therefore, there is an urgent need for an anti-crushing device that can prevent accidental activation, stop the action in time to ensure personnel safety, and has a simple structure and good stability to solve the above problems. Summary of the Invention

[0007] Purpose of the invention: To address the shortcomings of existing technologies, this utility model provides an anti-pinch triggering device for aerial work platforms. By setting a non-contact detection trigger switch and combining it with a rotating mechanism, when subjected to pressure, the rotating mechanism rotates and moves away from the detection area of ​​the trigger switch, thereby triggering the anti-pinch program. The device has a simple structure, a low probability of misoperation, and wide applicability.

[0008] Technical solution: An anti-pinch triggering device for an aerial work platform, characterized in that: it includes at least one triggering component installed on the control panel railing of the platform, the triggering component being fixedly connected to an anti-pinch rod, the triggering component including a mounting side plate installed on the railing, a triggering switch detachably connected to the mounting side plate, and a rotating mechanism fixedly connected to the mounting side plate via a rotating mechanism mounting plate, one end of the rotating mechanism being rotatably connected to the rotating mechanism mounting plate, and the other end being fixedly connected to any end of the anti-pinch rod, the detection end of the triggering switch facing the side of the rotating mechanism body, and the triggering switch being signal-connected to the controller.

[0009] This invention features a trigger component located in the upper part of the control panel railing near the operator. The rotating mechanism is rotatable relative to the mounting plate. The trigger switch in this design can be a non-contact proximity switch, providing contactless monitoring with an effective monitoring distance within 12mm. Due to the obstruction of the control panel railing and the rotating mechanism, the probability of accidental activation is extremely low. However, a gap is left to ensure smooth triggering under pressure. The overall structure is simple, and the rigid anti-pinch rod transmits the compressive force when a person falls, making it more efficient and direct. Compared to the traditional pull-cord type, there is no deformation range, resulting in a faster response.

[0010] The rotating mechanism includes a first hinge plate and a second hinge plate that are hinged to each other and mounted on the same rotating shaft. A torsion spring is fitted on the rotating shaft. The two ends of the torsion spring abut against the inner sides of the first hinge plate and the second hinge plate, respectively. The first hinge plate is fixedly connected to the rotating mechanism mounting plate. The second hinge plate is fixedly connected to the anti-pinch rod through a bent connecting plate. The detection end of the trigger switch faces the side of the second hinge plate.

[0011] Through the interrelation of the two hinge plates, the first hinge plate is fixed and the second hinge plate is driven to rotate along the shaft by the anti-pinch rod, so that the second hinge plate is disengaged from the detection port of the trigger switch, thereby triggering the execution of the anti-pinch program and issuing an audible and visual alarm. Automatic reset can be achieved by using a torsion spring.

[0012] The mounting side plate near the control panel has a magnet mounting plate with a through hole fixedly mounted perpendicular to the mounting side plate. A connecting bolt is slidably mounted through the through hole. The end of the connecting bolt is threaded to the magnet. The bolt shank is a smooth rod. The bolt shank is fitted with a compression spring at both ends that abut against the magnet and the magnet mounting plate respectively. The bolt head abuts against the rear side of the magnet mounting plate. The magnet is located near the anti-pinch rod.

[0013] Due to the pre-support force of the compression spring, in the initial state, the head of the connecting bolt abuts against the magnet mounting plate. By using a magnet, after the anti-pinch rod is pressed down, it drives the bent connecting plate to rotate downwards. When the bent connecting plate is pressed down to a state almost perpendicular to the platform, the magnet attracts the bent connecting plate. As the anti-pinch rod continues to press down, the compression spring compresses, providing a buffer for the connecting bolt, allowing the anti-pinch rod to continue rotating. When the operator stands up, the anti-pinch rod rotates under the action of the torsion spring, and the head of the connecting bolt abuts against the magnet mounting plate. The anti-pinch rod remains in its current position without rebounding, and the audible and visual alarm continues to sound. Once the operator confirms that the current environment is safe, they manually lift the anti-pinch rod, causing the magnet to disengage from the bent connecting plate. The torsion spring then resets the rod, allowing normal operation to continue. This provides a secondary confirmation process, ensuring that the operator can continue working in a safe working environment.

[0014] It also includes a reset confirmation button located on the control panel, which is connected to the controller.

[0015] Since the torsion spring automatically resets the anti-pinch rod, for safety reasons, a reset confirmation key is set up so that the platform operator can press the reset confirmation key only after ensuring that the current working environment is safe, so that the work platform can resume normal operation. This avoids the anti-pinch rod continuing to operate even when the current environment is not safe, which could pose a safety hazard to personnel and equipment.

[0016] The rotating mechanism includes a first hinge plate and a second hinge plate mounted on the same damping shaft and hinged to each other at different mounting parts, so that the first hinge plate and the second hinge plate can rotate relative to each other. The first hinge plate is fixedly connected to the rotating mechanism mounting plate, and the second hinge plate is fixedly connected to the anti-pinch rod through a bent connecting plate. The detection end of the trigger switch faces the side of the second hinge plate.

[0017] The damping shaft is composed of two interlocking shafts with mounting parts. The structures containing the two mounting parts can rotate relative to each other and maintain their current position after rotation without resetting. When using the damping shaft, the two hinge plates are installed on two different mounting parts of the damping shaft. When the anti-pinch rod is pressed down, the second hinge plate rotates downward along the damping shaft. When the second hinge plate disengages from the detection port of the trigger switch, the anti-pinch program is triggered and an audible and visual alarm is issued. After ensuring the safety of the current working environment, the anti-pinch rod is manually raised until the detection port of the trigger switch is directly opposite the middle of the second hinge plate. By lengthening the upper structure of the first and second hinge plates, the upper sides of the first and second hinge plates can be made to abut against each other after resetting, so that they are on the same plane. When they abut, the reset is successful, the audible and visual alarm is turned off, and the operator can continue to operate the platform for normal work.

[0018] The trigger switch is fixedly connected to the mounting side plate via a mounting plate.

[0019] By setting up the mounting plate and mounting side plate to be spliced ​​together, the structural design of the mounting side plate is simplified, the single-plate manufacturing process is simpler and faster, manufacturing costs are saved, and the installation and disassembly of the trigger switch is more convenient and easier to maintain.

[0020] The second hinge plate is configured as a bent plate structure with both sides bent. The detection end of the trigger switch is located in the middle of the bent side plate of the second hinge plate. When the second hinge plate rotates up and down, it will not be triggered if the rotation angle is less than or equal to 10°. If it is greater than 10°, the detection end of the trigger switch will disengage from the side plate of the second hinge plate and trigger the anti-pinch program.

[0021] To improve the effectiveness of the trigger switch and avoid poor user experience caused by slight accidental touches, the width of the side plate of the second hinge plate is set so that when the second hinge plate rotates along the axis, if the rotation angle is greater than 10°, the detection end of the trigger switch disengages from the second hinge plate and triggers the anti-pinch program.

[0022] The bending connecting plate is connected to the second hinge plate at one end, and is in a horizontal state when not triggered. The other end is bent downwards at an angle and coincides with the side projection of the turning part at the corner of the control panel fence.

[0023] The overall structure almost overlaps with the side projection of the control panel railing, placing the anti-pinch trigger device in the area where protective measures need to be implemented, without affecting the operator's other normal operations. At the same time, it makes the overall visual experience of the operating platform simpler and enhances the platform's aesthetics.

[0024] Beneficial Effects: This utility model features a trigger component located in the upper part of the control panel railing near the operator. The rotating mechanism is rotatable relative to its mounting plate. Non-contact monitoring via a trigger switch effectively detects objects within 12mm. The control panel railing and rotating mechanism minimize the probability of accidental activation, while allowing for a gap to ensure smooth triggering under pressure. The overall structure is simple, using a rigid anti-pinch rod to transmit the compressive force when a person falls, making it more efficient and direct. Compared to traditional pull-cord systems, it eliminates deformation ranges and reacts faster. To further enhance the effectiveness of the trigger switch and avoid unpleasant user experiences due to slight accidental activation, the width of the second hinge plate's side plate is adjusted. When the second hinge plate rotates along its axis, if the rotation angle exceeds 10°, the trigger switch's detection end disengages from the second hinge plate, triggering the anti-pinch procedure. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the overall structure and installation of this utility model.

[0027] Figure 2 This is a partial structural diagram of the trigger component of this utility model.

[0028] Figure 3 This is a partial structural diagram of the trigger component of this utility model.

[0029] Figure 4 This is a top view of a partial structure of the trigger component of this utility model. Detailed Implementation

[0030] 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.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] An anti-pinch triggering device for an aerial work platform includes at least one triggering component 1 installed on the control panel railing of the platform. The triggering component 1 is fixedly connected to an anti-pinch rod 2. The triggering component 1 includes a mounting side plate 11 installed on the railing, a trigger switch 12 detachably connected to the mounting side plate 11, and a rotating mechanism 14 fixedly connected to the mounting side plate 11 via a rotating mechanism mounting plate 13. One end of the rotating mechanism 14 is rotatably connected to the rotating mechanism mounting plate 13, and the other end is fixedly connected to any end of the anti-pinch rod 2. The detection end of the trigger switch 12 faces the side of the rotating mechanism 14 body, and the trigger switch 12 is signal-connected to a controller.

[0034] The present invention can be implemented using the following methods individually or in combination;

[0035] Example 1: The trigger component 1 is set to two, with trigger components 1 set on both the left and right sides of the control panel fence and connected by an anti-pinch rod 2. When the action is performed, trigger components 1 on both sides can be triggered, so as to avoid the failure of the trigger switch 12 in either trigger component 1, which would prevent the execution of the anti-pinch program from being triggered.

[0036] Example 2: Only one trigger component 1 is set and installed on either side of the control panel fence. On the other side, a follower mechanism is set that can move with the same motion trajectory as the rotating mechanism 14 in the trigger component 1. The rotating mechanism and the follower mechanism are connected by an anti-pinch rod 2. The follower mechanism can be selected to be driven by the anti-pinch rod 2 with the same mechanism as the rotating mechanism 14.

[0037] Example 3: The triggering component 1 is set to two. The triggering component 1 is set on both the left and right sides of the control panel fence, and each is connected to a separate anti-pinch rod 2. The distance between the two anti-pinch rods 2 is less than the minimum width of the human body, so as to ensure that when squeezed, at least one of the anti-pinch rods 2 can be triggered to press down and drive the triggering device 12 to trigger the execution of the anti-pinch program.

[0038] This invention features a trigger component 1 located in the upper part of the control panel railing near the operator. A rotating mechanism 14 is rotatable relative to the rotating mechanism mounting plate 13. The trigger switch 12 is a proximity switch, and the non-contact monitoring by the trigger switch 12 effectively monitors within 12mm. With the control panel railing and the rotating mechanism 14 providing cover, the probability of accidental activation is extremely low. However, a gap is left to allow for smooth triggering under pressure. The overall structure is simple, and the rigid anti-pinch rod 2 transmits the compressive force when a person falls, making it more efficient and direct. Compared to the traditional pull-rope type, there is no deformation range, and the response is faster.

[0039] The rotating mechanism 14 includes a first hinge plate 141 and a second hinge plate 142 mounted on the same rotating shaft and hinged to each other. A torsion spring 143 is fitted on the rotating shaft. The two ends of the torsion spring 143 abut against the inner sides of the first hinge plate 141 and the second hinge plate 142, respectively. The first hinge plate 141 is fixedly connected to the rotating mechanism mounting plate 13. The second hinge plate 142 is fixedly connected to the anti-pinch rod 2 through a bent connecting plate 15. The detection end of the trigger switch 12 faces the side of the second hinge plate 142.

[0040] Through the interrelation of the two hinge plates, the first hinge plate 141 is fixed, and the second hinge plate 142 is driven to rotate along the shaft by the anti-pinch rod 2, so that the second hinge plate 142 is disengaged from the detection port of the trigger switch 12, thereby triggering the execution of the anti-pinch program and issuing an audible and visual alarm. Automatic reset can be achieved by using the torsion spring 143.

[0041] The mounting side plate 11 is provided with a magnet mounting plate with a through hole fixedly mounted perpendicular to the mounting side plate 11 on the side near the control panel. A connecting bolt is slidably installed through the through hole. The end of the connecting bolt is threaded to the magnet. The bolt shank is a smooth rod. The bolt shank is fitted with a compression spring at both ends that abut against the magnet and the magnet mounting plate respectively. The bolt head abuts against the rear side of the magnet mounting plate. The magnet is located on the side near the anti-pinch rod 2.

[0042] Due to the pre-support force of the compression spring, in the initial state, the head of the connecting bolt abuts against the magnet mounting plate. By setting the magnet, after the anti-pinch rod 2 is pressed down, it drives the bending connecting plate 15 to rotate downward. When the bending connecting plate 15 is pressed down to a state almost perpendicular to the platform, the magnet and the bending connecting plate 15 are attracted. When the anti-pinch rod 2 continues to be pressed down, the compression spring is compressed, providing a buffer margin for the connecting bolt, allowing the anti-pinch rod 2 to continue to rotate. When the operator stands up, the anti-pinch rod 2 is driven to rotate under the action of the torsion spring 143, and the head of the connecting bolt abuts against the magnet mounting plate. The anti-pinch rod 2 remains in the current position and does not rebound. The audible and visual alarm continues to sound. When the operator confirms that the current environment is safe, he manually lifts the anti-pinch rod 2 to disengage the magnet from the bending connecting plate 15. The torsion spring 143 then resets the rod, and normal operation can continue. This provides a secondary confirmation process to ensure that the operator can continue to work in a safe working environment.

[0043] It also includes a reset confirmation button located on the control panel, which is connected to the controller.

[0044] Since the function of the torsion spring 143 causes the anti-pinch rod 2 to automatically reset, for safety reasons, a reset confirmation key is set so that the platform operator can press the reset confirmation key after ensuring that the current working environment is safe, so that the work platform can resume normal operation. This avoids the anti-pinch rod 2 from continuing to operate in an environment that is not safe after it has self-reset, which could pose a safety hazard to personnel and equipment.

[0045] The rotating mechanism 14 includes a first hinge plate 141 and a second hinge plate 142 mounted on the same damping shaft and hinged to each other at different mounting parts, so that the first hinge plate 141 and the second hinge plate 142 can rotate relative to each other. The first hinge plate 141 is fixedly connected to the rotating mechanism mounting plate 13, and the second hinge plate 142 is fixedly connected to the anti-pinch rod 2 through a bent connecting plate 15. The detection end of the trigger switch 12 faces the side of the second hinge plate 142.

[0046] The damping shaft is composed of two rotating shafts with mounting parts joined together. The structures containing the two mounting parts can rotate relative to each other and can maintain their current position after rotation without resetting. When the damping shaft is used, the two hinge plates are installed on two different mounting parts of the damping shaft. When the anti-pinch rod 2 is pressed down, the second hinge plate 142 rotates downward along the damping shaft. When the second hinge plate 142 disengages from the detection port of the trigger switch 12, the anti-pinch program is triggered and an audible and visual alarm is issued. After ensuring the safety of the current working environment, the anti-pinch rod 2 is manually lifted upward until the detection port of the trigger switch 12 is directly opposite the middle of the second hinge plate 142. The upper structure of the first hinge plate 141 and the second hinge plate 142 can be lengthened so that the upper sides of the first hinge plate 141 and the second hinge plate 142 abut against each other after resetting, so that they are on the same plane. When they abut, the reset is successful, the audible and visual alarm is turned off, and the operator can continue to operate the platform for normal work.

[0047] The trigger switch 12 is fixedly connected to the mounting side plate 11 via the mounting straight plate 16.

[0048] By setting the mounting plate 16 to be spliced ​​with the mounting side plate 11, the structural design of the mounting side plate 11 is simplified, the single-board manufacturing process is simpler and faster, manufacturing costs are saved, and the installation and disassembly of the trigger switch 12 are more convenient and easier to maintain.

[0049] The second hinge plate 142 is configured as a bent plate structure with both sides bent. The detection end of the trigger switch 12 is directly opposite the middle of the bent side plate of the second hinge plate 142. When the second hinge plate 142 rotates up and down, it will not be triggered if the rotation angle is less than or equal to 10°. If it is greater than 10°, the detection end of the trigger switch 12 will disengage from the side plate of the second hinge plate 142 and trigger the anti-pinch program.

[0050] In order to make the trigger switch 12 more effective and avoid the poor user experience caused by slight accidental touch, the width of the side plate of the second hinge plate 142 is set. When the second hinge plate 142 rotates along the axis, when the rotation angle is greater than 10°, the detection end of the trigger switch 12 disengages from the second hinge plate 142 and triggers the anti-pinch program.

[0051] The bending connecting plate 15 is connected to the second hinge plate 142 at one end. When not triggered, it is in a horizontal state, and the other end is bent downwards at an angle to coincide with the side projection of the turning part at the corner of the control panel fence.

[0052] The overall structure almost overlaps with the side projection of the control panel railing, placing the anti-pinch trigger device in the area where protective measures need to be implemented, without affecting the operator's other normal operations. At the same time, it makes the overall visual experience of the operating platform simpler and enhances the platform's aesthetics.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-pinch triggering device for an aerial work platform, characterized in that: The system includes at least one trigger assembly (1) installed on the control panel fence of the platform. The trigger assembly (1) is fixedly connected to the anti-pinch rod (2). The trigger assembly (1) includes a mounting side plate (11) installed on the fence, a trigger switch (12) detachably connected to the mounting side plate (11), and a rotating mechanism (14) fixedly connected to the mounting side plate (11) via a rotating mechanism mounting plate (13). One end of the rotating mechanism (14) is rotatably connected to the rotating mechanism mounting plate (13), and the other end is fixedly connected to any end of the anti-pinch rod (2). The detection end of the trigger switch (12) faces the side of the rotating mechanism (14) body. The trigger switch (12) is connected to the controller signal.

2. The anti-pinch triggering device for the aerial work platform according to claim 1, characterized in that: The rotating mechanism (14) includes a first hinge plate (141) and a second hinge plate (142) mounted on the same rotating shaft and hinged to each other. A torsion spring (143) is fitted on the rotating shaft. The two ends of the torsion spring (143) abut against the inner sides of the first hinge plate (141) and the second hinge plate (142) respectively. The first hinge plate (141) is fixedly connected to the rotating mechanism mounting plate (13). The second hinge plate (142) is fixedly connected to the anti-pinch rod (2) through a bent connecting plate (15). The detection end of the trigger switch (12) faces the side of the second hinge plate (142).

3. The anti-pinch triggering device for the aerial work platform according to claim 2, characterized in that: The mounting side plate (11) is provided with a magnet mounting plate with a through hole fixedly installed perpendicular to the mounting side plate (11) on the side near the control panel. A connecting bolt is slidably installed through the through hole. The end of the connecting bolt is threaded to the magnet. The bolt shank is a smooth rod. The bolt shank is fitted with a compression spring at both ends that abut against the magnet and the magnet mounting plate respectively. The bolt head abuts against the rear side of the magnet mounting plate. The magnet is located on the side near the anti-pinch rod (2).

4. The anti-pinch triggering device for the aerial work platform according to claim 2, characterized in that: It also includes a reset confirmation button located on the control panel, which is connected to the controller.

5. The anti-pinch triggering device for an aerial work platform according to claim 1, characterized in that: The rotating mechanism (14) includes a first hinge plate (141) and a second hinge plate (142) mounted on the same damping shaft and hinged to each other at different mounting parts, so that the first hinge plate (141) and the second hinge plate (142) can rotate relative to each other. The first hinge plate (141) is fixedly connected to the rotating mechanism mounting plate (13), and the second hinge plate (142) is fixedly connected to the anti-pinch rod (2) through a bent connecting plate (15). The detection end of the trigger switch (12) faces the side of the second hinge plate (142).

6. The anti-pinch triggering device for the aerial work platform according to claim 1, characterized in that: The trigger switch (12) is fixedly connected to the mounting side plate (11) via the mounting plate (16).

7. The anti-pinch triggering device for an aerial work platform according to any one of claims 2 to 5, characterized in that: The second hinge plate (142) is configured as a bent plate structure with both sides bent. The detection end of the trigger switch (12) is directly opposite the middle position of the bent side plate of the second hinge plate (142). When the second hinge plate (142) rotates up and down, it will not be triggered if the rotation angle is less than or equal to 10°. If it is greater than 10°, the detection end of the trigger switch (12) will disengage from the side plate of the second hinge plate (142) and trigger the anti-pinch program.

8. The anti-pinch triggering device for an aerial work platform according to any one of claims 2 to 5, characterized in that: The bent connecting plate (15) is connected to the second hinge plate (142) at one end. When not triggered, it is in a horizontal state, and the other end is bent downwards at an angle to coincide with the side projection of the turning part at the corner of the control panel fence.

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