Anti-extrusion triggering structure of aerial work platform

Abstract

The anti-extrusion triggering structure of the aerial work platform comprises a transmission assembly and a triggering assembly, the transmission assembly comprises an anti-extrusion rod, a transmission connecting rod and a pull rod, the two ends of the pull rod are hinged to one end of the transmission connecting rod and the triggering assembly respectively, and the other end of the transmission connecting rod is fixedly connected with the anti-extrusion rod; the trigger assembly comprises a guide sleeve fixedly installed on the fence, a trigger rod penetrating through the guide sleeve and installed in a sliding mode and a trigger detection device matched with the trigger rod for use, and the pull rod is hinged to the trigger rod. Through the transmission effect of the transmission assembly, when the anti-extrusion rod is pressed downwards, the transmission connecting rod is driven to tilt upwards, then the pull rod is driven to be pulled obliquely upwards, and due to the fact that the guide sleeve and the pull rod are hinged to the trigger rod, the trigger rod is pulled back and is combined with the trigger detection device, triggering of an anti-extrusion program is achieved. Triggering is carried out simultaneously through a rigid connection structure, response is sensitive and rapid, the overall structure is simple, stability is high, and maintenance and replacement cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-extrusion trigger structure of aerial work platform, belong to aerial work platform safety protection technical field. BACKGROUND

[0002] Aerial work platform is the product of movable aerial work serving various industries high-altitude operation, equipment installation, maintenance etc..Aerial work platform related products mainly have: scissor aerial work platform, trailer aerial work platform, curved arm aerial work platform, straight arm aerial work platform, aluminum alloy aerial work platform, sleeve cylinder aerial work platform, spider aerial work platform seven categories.The working mode is that operating personnel is located on work platform, and work platform is lifted to specified area by lifting system to work.

[0003] There is certain risk in high-altitude operation, when platform moves in the process of operation, when encountering obstacle, operating personnel receives extrusion and is easy to cause personal injury, how to guarantee the safety of operating personnel and construction safety is the problem that current aerial work platform field has been concerned about, passive trigger mode is particularly common, such as Chinese public patent CN108358136A work platform anti-extrusion system, aerial work platform and control method, the application discloses technical scheme "including located at the rear side of operating table and two ends with work platform connected anti-extrusion pull rope, at least one end of the anti-extrusion pull rope is connected with pull rope switch set on work platform, the pull rope switch is connected with upper controller, the upper controller has platform action stop module."The technical scheme of the application is through setting pull rope, pull rope switch is set at both ends, when pull rope is extruded and deforms, pull rope switch triggers, and the whole machine makes corresponding action to protect operating personnel.

[0004] Existing trigger structure used as anti-extrusion still includes the principle of using the pushing force of person forward to push the stop lever forward to drive operating table protective cover rotation, angle sensor is set in hinged place, through setting trigger angle of angle sensor, corresponding protection measures are controlled to be executed by platform;There is also through setting microswitch at the connection place of stop lever and platform or operating table, when extrusion occurs, corresponding protection measures are controlled to be executed by platform through triggering microswitch.

[0005] In the prior art, the tension rope or the angle sensor has a tension rope deformation triggering stroke and a set triggering angle range of the angle sensor, which aims to determine that the platform is pressed only after being pressed to a certain degree, so as to consider the comfort of the operator and avoid stopping the operation immediately to avoid the inertia from bringing discomfort to the operator, but at the same time, the platform cannot stop in time, which brings greater safety risk; the micro switch is used, and the platform is often shaken due to crosswind or inertia during operation of the aerial work platform, and the triggering sensitivity of the micro switch needs to be calculated strictly, different triggering sensitivity ranges need to be set according to different vehicle types to avoid false triggering during normal operation of the platform, and the aerial work platform product is updated quickly and has many types, so if the same micro switch is used for different aerial work platforms, it is obviously not suitable for all aerial work platforms.

[0006] Therefore, there is an urgent need for an anti-pressing device which can avoid false triggering, stop in time, ensure safety of personnel, has simple structure and good stability, to solve at least one of the above problems. SUMMARY

[0007] The utility model discloses a kind of anti-pressing triggering structures of aerial work platform, the transmission effect of transmission assembly is driven to pull rod obliquely upwards, since the hinge connection of guide sleeve and pull rod and trigger rod, trigger rod back pull, and trigger detection device combination realizes the triggering of anti-pressing program, structure is simple, and triggering response speed is fast.

[0008] Technical scheme: An anti-pressing triggering structure of aerial work platform includes a transmission assembly and a trigger assembly installed on a platform console fence, the transmission assembly includes an anti-pressing rod, a transmission link rotatably connected to the fence at the middle, and a pull rod hingedly connected to one end of the transmission link and the trigger assembly at both ends, and the other end of the transmission link is fixedly connected to the anti-pressing rod; the trigger assembly includes a guide sleeve fixedly installed on the fence, a trigger rod slidably installed through the guide sleeve, and a trigger detection device used in cooperation with the trigger rod, and the pull rod is hingedly connected to the trigger rod.

[0009] The utility model drives transmission link to rise upwards when anti-pressing rod is pressed down through the transmission effect of transmission assembly, and then drives pull rod to pull obliquely upwards, since the hinge connection of guide sleeve and pull rod and trigger rod, trigger rod back pull, and trigger detection device combination realizes the triggering of anti-pressing program, triggering is carried out by rigid connection structure, reaction is sensitive and fast, and the whole structure is simple, stable, and low in maintenance and replacement cost.

[0010] The trigger detection device is set as a proximity switch, the proximity switch is set on the side far from the pull rod, the proximity switch is coaxially arranged with the guide sleeve through the mounting plate fixedly mounted on the fence, the detection end of the proximity switch is opposite to the end of the trigger rod, and the proximity switch is signal-connected with the platform controller.

[0011] The trigger detection device is set as a proximity switch, the proximity switch is set on the side far from the pull rod, the proximity switch is set on the side far from the pull rod, the proximity switch is coaxially arranged with the guide sleeve through the mounting plate fixedly mounted on the fence, the detection end of the proximity switch is opposite to the end of the trigger rod, and the proximity switch is signal-connected with the platform controller.

[0012] The trigger detection device is set as a proximity switch, the proximity switch is set on the side far from the pull rod, the proximity switch is set on the side far from the pull rod, the proximity switch is coaxially arranged with the guide sleeve through the mounting plate fixedly mounted on the fence, the detection end of the proximity switch is opposite to the end of the trigger rod, and the proximity switch is signal-connected with the platform controller.

[0013] When the travel switch is selected to release the trigger, the travel switch is arranged on the side far from the pull rod, the trigger rod is pressed against the detection end of the travel switch when the trigger is not triggered, and the travel switch is signal-connected with the platform controller.

[0014] The trigger detection device is set as a proximity switch, the proximity switch is set on the side far from the pull rod, the proximity switch is set on the side far from the pull rod, the proximity switch is coaxially arranged with the guide sleeve through the mounting plate fixedly mounted on the fence, the detection end of the proximity switch is opposite to the end of the trigger rod, and the proximity switch is signal-connected with the platform controller.

[0015] When the travel switch is set to contact trigger, the travel switch is arranged on the side close to the pull rod, the trigger rod is pressed against the detection end of the travel switch when the trigger is not triggered, and the travel switch is signal-connected with the platform controller.

[0016] The trigger detection device is set as a proximity switch, the proximity switch is set on the side far from the pull rod, the proximity switch is set on the side far from the pull rod, the proximity switch is coaxially arranged with the guide sleeve through the mounting plate fixedly mounted on the fence, the detection end of the proximity switch is opposite to the end of the trigger rod, and the proximity switch is signal-connected with the platform controller.

[0017] When the trigger detection device is set as a pull rope switch, the pull rope switch comprises a pull rope and a detection part, and the principle of the pull rope switch is that, after installation, the pull rope is pulled out to a trigger node of the pull rope switch by a certain distance, the length of screwing in and out can be adjusted to control the pull-out length of the pull rope, and the pull rope has a certain pre-tightening force at this time.

[0018] The limit block is fixedly connected with the fence and is arranged below the transmission connecting rod and offset from the transmission connecting rod rotating point on the side close to the pull rod.

[0019] The limit block structure is installed between the middle rotating point of the transmission connecting rod and the pull rod, and provides downward limit for the transmission connecting rod, avoids the downward falling of the hinge due to the hinge of the transmission connecting rod and the pull rod, and avoids the influence of the loose structure on the effective monitoring of the trigger detection device. The transmission connecting rod is arranged in a bent structure, so that the anti-pressing rod can smoothly rotate downward when being pressed, and will not be pushed forward to cause the rotation to be stuck and unable to smoothly trigger the execution of the anti-pressing program.

[0020] The pull rod is provided with a hinge part hingedly connected with the transmission connecting rod and the trigger rod at both ends, respectively. A reset spring is arranged in the guide sleeve and wrapped around the trigger rod. The guide sleeve is provided with a first limiting part at one end close to the pull rod, which abuts against one end of the reset spring. The trigger rod is provided with a second limiting part abutting against the other end of the reset spring. A reset confirmation key is arranged on the control console and is signal connected with the platform controller.

[0021] The reset spring is arranged in the guide sleeve. When the trigger ends, the operator is in a safe environment, and the operator stands up. The trigger rod is pushed to the initial position by the reset spring. The whole structure is reset by the reset spring, or the operator assists to lift the anti-pressing rod to assist the reset. Then, the reset confirmation key is pressed to restore normal work.

[0022] The pull rod is provided with a compression spring. The transmission connecting rod and the pull rod are hingedly connected through a sliding block wrapped around the pull rod. When not triggered, the transmission connecting rod is in an inclined state. The pull rod and the trigger rod are located on the same straight line. The compression spring is in a compressed state. The upper side of the limit block is provided with a locking platform with the same inclination angle as the transmission connecting rod and an unlocking chamfer close to the anti-pressing rod, which is adapted to the rotation range of the transmission connecting rod. When not triggered, the transmission connecting rod abuts against the locking platform. When triggered, the transmission connecting rod is separated from the locking platform.

[0023] The compression spring is in a compressed state in the initial state, and applies a pushing force to both left and right sides. The limit of the locking platform of the rotating point and the limit block makes the pull rod and the trigger rod remain on the same straight line in the initial state, and stabilizes in the untriggered state, preventing the pull rod from being lifted up under the action of the gravity of the anti-pressing rod, which causes the false triggering of the trigger detection device. When the anti-pressing rod is pressed down, the transmission connecting rod rotates along the rotating point. Due to the arrangement of the unlocking chamfer, the transmission connecting rod can be easily locked and reset.

[0024] The pull rod is provided with a limiting plate close to the sliding block.

[0025] In order to avoid the disengagement of the sliding block caused by the excessive rotation angle of the anti-pressing rod after the compression spring is reset, the sliding of the sliding block can be kept within a limited range by the limiting plate.

[0026] The transmission assembly and the trigger assembly are both installed through the installation base plate fixed on the fence.

[0027] Since the platform fence is usually a separately produced device in the production and manufacturing process of the aerial work platform, and is usually a purchased structure, in order to realize quick installation, the transmission assembly and the trigger assembly are both installed on the installation base plate, so that the installation process of the anti-pressing structure can be simplified, and the anti-pressing structure can be widely applied in the experimental stage without excessive processing of the fence.

[0028] Beneficial effects: the transmission assembly drives the transmission connecting rod to be upwardly tilted when the anti-pressing rod is pressed down, and then drives the pull rod to be upwardly pulled obliquely, since the guide sleeve and the pull rod are hinged with the trigger rod, the trigger rod is pulled back, and the trigger detection device is combined to trigger the anti-pressing program, the trigger is moved by the rigid connection structure, the reaction is sensitive and fast, the overall structure is simple, stable, and low in maintenance and replacement cost.

[0029] The limiting block structure is installed at the position between the middle rotating point of the transmission connecting rod and the pull rod, and provides downward limitation for the transmission connecting rod, avoids the downward droop of the hinge due to the hinge of the transmission connecting rod and the pull rod, avoids the influence of the loose structure on the effective monitoring of the trigger detection device, and the transmission connecting rod is arranged in a bent structure, so that the anti-pressing rod can be smoothly downwardly rotated when being pressed, and cannot be forwardly pushed to cause rotation jam and fail to smoothly trigger the execution of the anti-pressing program.

[0030] The reset spring is arranged in the guide sleeve, when the triggering ends, the operator is in a safe environment, the operator gets up, the reset spring pushes the trigger rod to the initial position, the reset spring drives the overall structure to reset, or the operator assists in lifting the anti-pressing rod to assist in resetting.

[0031] The compression spring is in a compressed state in the initial state, and applies a pushing force to the left and right sides, the limiting of the fence by the rotating point and the limiting block makes the pull rod and the trigger rod keep in the same straight line in the initial state, and is stable in the untriggered state, so as to prevent the upward tilting of the pull rod caused by the gravity of the anti-pressing rod, and the false triggering of the trigger detection device; when the anti-pressing rod is pressed down, the transmission connecting rod rotates along the rotating point, since the unlocking chamfer is arranged, the transmission connecting rod can be easily locked and the compression spring is reset. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0033] Figure 1 It is a schematic diagram of the overall installation structure of the present application.

[0034] Figure 2 It is a partial structure diagram of the transmission assembly and the trigger assembly of the present application, wherein the trigger detection device is omitted.

[0035] Figure 3 It is a partial structure side view of the transmission assembly and the trigger assembly of the present application, wherein the trigger detection device is omitted.

[0036] Figure 4 It is a partial sectional view of the installation structure of the trigger rod and the guide sleeve of the present application. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0038] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0039] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature is on, above and on second feature includes that first feature is directly above and obliquely above second feature, or only indicates that first feature horizontal height is higher than second feature.First feature is below, under and under second feature includes that first feature is directly below and obliquely below second feature, or only indicates that first feature horizontal height is less than second feature.

[0040] As shown in Figures 1 to 3 The utility model provides an anti -extrusion trigger structure of aerial work platform, including transmission assembly and trigger assembly installed on platform control console fence, transmission assembly includes anti -extrusion rod 1, the transmission connecting rod 2 of middle part rotatable connection with fence and the pull rod 3 of both ends respectively with transmission connecting rod 2 one end and trigger assembly hinged, transmission connecting rod 2 other end and anti -extrusion rod 1 fixed connection, trigger assembly includes the guide sleeve 4 of fixed installation on fence, the trigger rod 5 of slidable installation through guide sleeve 4 and the trigger detection device 6 of cooperation with trigger rod 5, the pull rod 3 is hinged with trigger rod 5.

[0041] The utility model scheme can use the following several implementation ways to set up independently or in combination

[0042] Embodiment 1: transmission assembly and trigger assembly are set up as two pairs, and the control console fence is provided with two anti -extrusion rods 1 connected on the left and right sides, and both sides trigger assembly can be triggered when moving, to avoid that the trigger detection device 6 in any trigger assembly 1 fails to trigger the execution of the anti -extrusion program

[0043] Embodiment 2: transmission assembly and trigger assembly are set up as one, and are installed on any one side of the control console fence, and the other side is provided with a follow-up mechanism corresponding to the rotation point position of transmission connecting rod and moving along the same trajectory, transmission connecting rod 2 and follow-up mechanism are connected by an anti -extrusion rod 1, and the follow-up mechanism can be selected to be the same mechanism as transmission connecting rod 2 and be driven by anti -extrusion rod 1 to move.

[0044] Embodiment 3: transmission assembly and trigger assembly are set up as two pairs, and are provided on the left and right sides of the control console fence and are connected with separate anti -extrusion rods 1, and the distance between the two anti -extrusion rods 1 is less than the minimum width of the human body, to ensure that at least one anti -extrusion rod 1 can be triggered to drive the trigger assembly to trigger the execution of the anti -extrusion program when being extruded

[0045] The utility model discloses a transmission assembly's drive effect is when being pressed down to anti -extrusion pole 1, drive transmission connecting rod 2 is upturned, and further drive pull rod 3 is obliquely pulled up, due to the hinge of guide sleeve 4 and pull rod 3 and trigger lever 5, trigger lever 5 back pull, and trigger detection device 6 combination realizes the trigger of anti -extrusion program, trigger is all by rigid connection structure and carries out simultaneous action, and reaction is sensitive and fast, and whole structure is simple and stable, and maintenance and replacement cost are low.

[0046] Trigger detection device 6 is set as proximity switch, the proximity switch is set on the side away from pull rod 3, the proximity switch is coaxial with guide sleeve 4 through the fixed mounting on the installation plate 7 of fence, the detection end of proximity switch is opposite the end of trigger lever 5, and the proximity switch is connected with platform controller signal.

[0047] Trigger detection device 6 is set as proximity switch, and the end of trigger lever 5 is opposite the detection end of proximity switch, when being extruded, trigger lever 5 is back pulled under force, and the detection end of proximity switch is separated, and then the execution of anti -extrusion program is triggered.

[0048] Trigger detection device 6 is set as travel switch, the travel switch is set on the side away from pull rod 3, and the detection end of travel switch is contacted with trigger lever 5 when not being triggered, and the travel switch is connected with platform controller signal.

[0049] When the travel switch is selected to release trigger, the travel switch is set on the side away from pull rod 3, and the detection end of travel switch is extruded by trigger lever 5 when not being triggered, so that it is in compression state, and trigger lever 5 is pulled back after anti -extrusion pole 1 is pressed down, so that trigger lever 5 is separated from travel switch, the compression end of travel switch is popped out, and the execution of anti -extrusion program is triggered.

[0050] Trigger detection device 6 is set as travel switch, the travel switch is set on the side close to pull rod 3, and the detection end of travel switch is contacted with trigger lever 5 when being triggered, and the travel switch is connected with platform controller signal.

[0051] When the travel switch is set as contact trigger, the travel switch is set on the side close to pull rod 3, and the left end of trigger lever 5 is contacted with travel switch after trigger lever 5 is pulled back when anti -extrusion pole 1 is pressed down, so that the execution of anti -extrusion program is triggered, and the travel switch can also be set on the side away from pull rod 3, the trigger part protruding to the side is arranged on the end of trigger lever 5, the trigger part is contacted with the detection end of travel switch when trigger lever 5 is pulled back under force, and the execution of anti -extrusion program is triggered.

[0052] Trigger detection device 6 is set as pull rope switch, the pull rope switch is set on the side away from pull rod 3, the end of trigger lever 5 is screwed with the trigger pull rope of pull rope switch, and the pull rope of pull rope switch provides pre-tightening tension for the detection part of pull rope switch when not being triggered, and the pull rope switch is connected with platform controller signal.

[0053] When the trigger detection device 6 is set as a pull rope switch, the pull rope switch includes a pull rope and a detection part, and the principle of the pull rope switch is that after installation is completed, the pull rope is pulled out to a trigger node of the pull rope switch by a certain distance, the length of screwing in and screwing out can be adjusted by a threaded connection mode to control the pull-out length of the pull rope, at this time, the pull rope has a certain pre-tightening force, when the anti-extrusion rod 1 is pressed downward, the pull rope of the pull rope switch is pulled out by the trigger lever 5, so that the pull-out length of the pull rope exceeds the trigger node, and the pull rope switch triggers the execution of the anti-extrusion program.

[0054] The limiting block 8 fixedly connected with the fence is arranged on the side close to the pull rod 3 below the transmission connecting rod 2 and away from the rotation point of the transmission connecting rod 2.

[0055] The limiting block 8 is arranged between the middle rotation point of the transmission connecting rod 2 and the pull rod 3, which provides downward limiting for the transmission connecting rod 2, avoids downward falling of the hinge due to the hinge connection between the transmission connecting rod 2 and the pull rod 3, and avoids the influence of the loose structure on the effective monitoring of the trigger detection device 6.

[0056] As shown in Figure 4 The pull rod 3 is provided with a hinge part at each end and is hingedly connected with the end of the transmission connecting rod 2 and the trigger lever 5, the guide sleeve 4 is provided with a reset spring 9 sleeved outside the trigger lever 5, the end of the guide sleeve 4 close to the pull rod 3 is provided with a first limiting part 10 abutting with one end of the reset spring 9, the trigger lever 5 is provided with a second limiting part 11 abutting with the other end of the reset spring 9, and the control platform is provided with a reset confirmation key.

[0057] The reset spring 9 is arranged in the guide sleeve 4, when the triggering ends, the operator is in a safe environment, the operator gets up, the trigger lever 5 is pushed to the initial position by the reset spring 9, the whole structure is reset by the reset spring 9, or the operator assists to lift the anti-extrusion rod 1 to assist resetting, and then the reset confirmation key is pressed to restore normal work.

[0058] The middle of the pull rod 3 is sleeved with a compression spring 12, the transmission connecting rod 2 and the pull rod 3 are hinged through a sliding block 13 sleeved on the pull rod 3, when not triggered, the transmission connecting rod 2 is in an inclined state, the pull rod 3 and the trigger rod 5 are located on the same straight line, the compression spring 12 is in a compressed state, the upper side of the limiting block 8 is provided with a locking platform 81 with the same inclination angle as the transmission connecting rod 2 and an unlocking chamfer 82 close to the side of the anti-extrusion rod 1, when not triggered, the transmission connecting rod 2 abuts against the locking platform 81, when triggered, the transmission connecting rod 2 is separated from the locking platform 81.

[0059] The compression spring 12 is in a compressed state in the initial state, and exerts a pushing force to the left and right sides, and the rotation point and the limiting of the locking platform 81 on the limiting block 8 make the pull rod 3 and the trigger rod 5 keep on the same straight line in the initial state, and are stable in the untriggered state, preventing the pull rod 3 from being driven to be upturned under the gravity of the anti-extrusion rod 1, causing the false triggering of the trigger detection device 6; when the anti-extrusion rod 1 is pressed down, the transmission connecting rod 2 rotates along the rotation point, and due to the setting of the unlocking chamfer 82, the transmission connecting rod 2 can easily contact the locking, and the compression spring 12 resets.

[0060] The limiting plate 14 is arranged at the end of the pull rod 3 close to the sliding block 13.

[0061] In order to avoid the disengagement of the sliding block 13 caused by the excessive rotation angle of the anti-extrusion rod 1 after the compression spring 12 resets or is pressed down, the limiting plate 14 can make the sliding of the sliding block 13 keep within a limited range.

[0062] The transmission assembly and the trigger assembly are both installed through the mounting base plate 15 fixed on the fence.

[0063] Since the platform fence is usually a separately produced device in the production and manufacturing process of the aerial work platform, and is usually a purchased structure, in order to realize quick installation, the transmission assembly and the trigger assembly are both installed on the mounting base plate 15, which can simplify the installation process of the anti-extrusion structure, and can be widely applied in the experimental stage without excessive processing of the fence.

[0064] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0065] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended 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-crush trigger structure of an aerial work platform, characterized in that: The application relates to a platform control console anti-pressing device, which comprises a transmission assembly and a trigger assembly installed on the fence of a platform console, the transmission assembly comprises an anti-pressing rod (1), a transmission connecting rod (2) rotatably connected with the fence in the middle, and a pull rod (3) hingedly connected with one end of the transmission connecting rod (2) and the trigger assembly, and the other end of the transmission connecting rod (2) is fixedly connected with the anti-pressing rod (1); the trigger assembly comprises a guide sleeve (4) fixedly installed on the fence, a trigger rod (5) slidably installed through the guide sleeve (4), and a trigger detection device (6) used in cooperation with the trigger rod (5), and the pull rod (3) is hingedly connected with the trigger rod (5).

2. The anti-crush trigger structure of the aerial work platform according to claim 1, characterized in that: The trigger detection device (6) is arranged as a proximity switch, the proximity switch is arranged on the side far away from the pull rod (3), the proximity switch is coaxially arranged with the guide sleeve (4) through a mounting plate (7) fixedly installed on the fence, the detection end of the proximity switch is opposite to the end of the trigger rod (5), and the proximity switch is signal-connected with a platform controller.

3. The anti-crush trigger structure of the aerial work platform according to claim 1, characterized in that: The trigger detection device (6) is arranged as a travel switch, the travel switch is arranged on the side far away from the pull rod (3), the trigger rod (5) is in contact with the detection end of the travel switch when not triggered, and the travel switch is signal-connected with the platform controller.

4. The anti-crush trigger structure of the aerial work platform according to claim 1, characterized in that: The trigger detection device (6) is arranged as a travel switch, the travel switch is arranged on the side close to the pull rod (3), the trigger rod (5) is in contact with the detection end of the travel switch when triggered, and the travel switch is signal-connected with the platform controller.

5. The anti-crush trigger structure of the aerial work platform according to claim 1, characterized in that: The trigger detection device (6) is arranged as a pull rope switch, the pull rope switch is arranged on the side far away from the pull rod (3), the end of the trigger rod (5) is screw-connected with a trigger pull rope of the pull rope switch, when not triggered, the pull rope of the pull rope switch provides a pre-tightening pulling force for the detection part of the pull rope switch, and the pull rope switch is signal-connected with the platform controller.

6. The anti-crush trigger structure of a high-altitude working platform according to any one of claims 2 to 5, characterized in that: A limiting block (8) fixedly connected with the fence is arranged on the side close to the pull rod (3) and away from the rotating point of the transmission connecting rod (2) below the transmission connecting rod (2), the transmission connecting rod (2) is arranged as a bent structure, the bending position is arranged on the side close to the pull rod (3), and the upper side of the limiting block (8) is in abutment with the lower side of the transmission connecting rod (2) in the untriggered state.

7. The anti-crush trigger structure of a high-altitude working platform according to any one of claims 2 to 5, characterized in that: The pull rod (3) is provided with a hinge part hingedly connected with the end of the transmission connecting rod (2) and the trigger rod (5) at two ends, the guide sleeve (4) is provided with a reset spring (9) sleeved on the trigger rod (5) inside, the end of the guide sleeve (4) close to the pull rod (3) is provided with a first limiting part (10) in abutment with one end of the reset spring (9), the trigger rod (5) is provided with a second limiting part (11) in abutment with the other end of the reset spring (9), and a reset confirmation key is arranged on the console, and the confirmation reset key is signal-connected with the platform controller.

8. The anti-crush trigger structure of the aerial work platform according to claim 6, characterized in that: The middle of the pull rod (3) is sleeved with a compression spring (12), the transmission connecting rod (2) and the pull rod (3) are hinged through the slider (13) sleeved on the pull rod (3), when not triggered, the transmission connecting rod (2) is in an inclined state, the pull rod (3) and the trigger rod (5) are located on the same straight line, the compression spring (12) is in a compressed state, the upper side of the limiting block (8) is provided with a locking platform (81) with the same inclination angle of the transmission connecting rod (2) and an unlocking chamfer (82) close to the side of the anti-pressing rod (1) and adapted to the rotation range of the transmission connecting rod (2), when not triggered, the transmission connecting rod (2) abuts against the locking platform (81), when triggered, the transmission connecting rod (2) is separated from the locking platform (81).

9. The anti-crush trigger structure of the aerial work platform according to claim 8, characterized in that: The pull rod (3) is provided with a limiting plate (14) at one end close to the slider (13).

10. The anti-crush trigger structure of the aerial work platform according to claim 1, characterized in that: The transmission assembly and the trigger assembly are both installed through the mounting base plate (15) fixed on the fence.

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