Working platform weighing control system and aerial work platform

Abstract

The embodiment of the utility model provides a work platform weighing control system and an aerial work platform, a plurality of weighing detection assemblies are arranged at the bottom of the work platform, and each weighing detection assembly is located between the work platform and a weighing platform support and used for weighing the work platform and loads on the work platform; meanwhile, the inclination angle between the operation platform and the horizontal plane is detected through the inclination angle detection assembly, the actual platform load of the operation platform is obtained, when the actual platform load is larger than or equal to a preset overload threshold value, the alarm device is controlled to give an alarm, an operator is reminded of the current platform load condition in time, operation accidents are prevented, and the system safety is improved; meanwhile, the working platform is prevented from being overloaded or overloaded for a long time, and the service life of the working platform is prolonged.

Description

Technical Field

[0001] This application relates to the field of railway engineering technology, specifically to a weighing control system for an aerial work platform and an aerial work platform. Background Technology

[0002] Platform overloading seriously threatens the safety of workers. Existing methods use load cells to weigh the platform to detect the load. Most of these methods are based on the uniform load distribution or the weighing of smaller platforms, which are not suitable for weighing platforms with uneven load distribution (especially off-center loads) or larger platforms.

[0003] Most existing folding platforms that can be pushed and pulled from both sides adopt a three-platform structure that combines a fixed platform (consisting of an integral platform or two sub-platforms) with two movable platforms. This design has a large degree of redundancy, is not economical in terms of materials, and results in a thicker, heavier, and more expensive platform. Utility Model Content

[0004] This application provides a weighing control system for a work platform and an aerial work platform to solve the problems of inaccurate weighing of platforms with uneven loads by existing weighing devices, which leads to the platform being in an overloaded or overloaded state for a long time, reducing the service life of the platform or making it prone to work accidents.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A weighing control system for a work platform includes:

[0007] Operating platform;

[0008] A weighing platform support is located below the working platform and is used to support the working platform.

[0009] A plurality of weighing and detection components, each of which is located between the working platform and the weighing platform support, are used to weigh the working platform and the load on it;

[0010] The tilt angle detection component is located at the bottom of the work platform and detects the tilt angle between the work platform and the horizontal plane;

[0011] A control component is connected to the weighing detection component and the tilt angle detection component, respectively, and is used to obtain the actual load of the work platform based on the weighing load detected by the weighing detection component and the tilt angle detected by the tilt angle detection component. The control component is used to control the alarm device to sound an alarm when the actual load of the work platform is greater than or equal to a preset overload threshold.

[0012] Optionally, the weighing detection component is a weighing sensor;

[0013] And / or, the tilt detection component is a tilt sensor.

[0014] Optionally, the number of weighing detection components is 8, and each of the weighing detection components is evenly arranged at the bottom circumferential edge and center of the working platform.

[0015] Optionally, the operating platform includes:

[0016] Fixed platform;

[0017] The activity platform can be stored below the fixed platform, or moved in the first direction to one side of the fixed platform, or in the second direction to the other side of the fixed platform;

[0018] Two sets of protective devices are respectively installed on a fixed platform;

[0019] When the platform moves in the first direction, it causes a set of protective devices to deploy and surround the platform; when the platform moves in the second direction, it causes another set of protective devices to deploy and surround the platform.

[0020] Optionally, the protective device includes: a main railing and a set of movable railings; the protective surface formed by the main railing is perpendicular to the first direction, and a set of movable railings is provided at each end of the main railing, the movable railings being able to extend and retract along the first direction; one end of the movable railings is fixed to the fixed platform.

[0021] Optionally, the movable railing assembly includes at least two movable railings;

[0022] One movable railing is connected to the fixed platform, and the other movable railing is connected to the main railing; a guide mechanism is provided between the movable railings to allow them to move relative to each other in a first direction.

[0023] Optionally, the guiding mechanism includes: a slide groove disposed on one movable railing and a slider disposed on another movable railing, the slide groove extending in a first direction, and the slider being embedded in the slide groove and moving along the slide groove.

[0024] Optionally, the movable railing assembly includes four movable railings; the four movable railings are connected in sequence via a guide mechanism; the outer movable railing is connected to the fixed platform, and the inner movable railing is connected to the movable platform.

[0025] Optionally, it further includes: a protective drive mechanism disposed at the bottom of the fixed platform; the protective drive mechanism is used to drive the movable platform to move in a first direction or in a second direction.

[0026] Optionally, the protective drive mechanism includes a hydraulic cylinder and a piston rod, with the hydraulic cylinder located at the bottom of the fixed platform and the piston rod connected to the bottom end of the main railing.

[0027] This application also provides an aerial work platform, including the work platform weighing control system described in any of the above embodiments.

[0028] The work platform weighing control system provided in this application includes: a work platform; a weighing platform support located below the work platform for supporting the work platform; a plurality of weighing detection components, each of which is located between the work platform and the weighing platform support for weighing the work platform and its load; an inclination detection component located at the bottom of the work platform for detecting the inclination angle between the work platform and the horizontal plane; and a control component connected to the weighing detection components and the inclination detection components, for obtaining the actual load of the work platform based on the weighing load detected by the weighing detection components and the inclination angle detected by the inclination detection components, and for controlling the alarm device to sound an alarm when the actual load of the work platform is greater than or equal to a preset overload threshold.

[0029] The weighing control system for a work platform provided in this application embodiment has the following technical advantages compared to the prior art:

[0030] In this application, several weighing and detection components are installed at the bottom of the work platform. Each weighing and detection component is located between the work platform and the weighing platform support to weigh the work platform and the load on it. At the same time, the tilt angle detection component detects the tilt angle between the work platform and the horizontal plane and obtains the actual load of the work platform. When the actual load of the work platform is greater than or equal to the preset overload threshold, the control alarm device alarms to promptly remind the operator of the current platform load status, prevent work accidents, and improve system safety. At the same time, it prevents the work platform from being in an overloaded or overloaded state for a long time and extends the service life of the work platform. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 A structural block diagram of the weighing control system for the work platform provided in the embodiments of this application;

[0033] Figure 2 A schematic diagram showing the installation position of the weighing sensor provided in an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the structure of the operating platform provided in the embodiments of this application;

[0035] Figure 4 This is a schematic diagram of the structure of the protective device in the work platform provided in the embodiments of this application;

[0036] Figure 5 This is a schematic diagram of the structure of the activity platform in the operating platform provided in the embodiments of this application;

[0037] Figure 6 A cross-sectional view of the fixed platform in the railway construction operation platform provided in the embodiments of this application.

[0038] The following labels are shown in the attached diagram:

[0039] 110 - PLC central controller, 120 - load cell, 130 - tilt sensor, 140 - display, 150 - warning light, 160 - buzzer;

[0040] 1-Fixed platform; 11-Guide rail; 2-Moving platform; 21-Insertion hole; 22-Guide wheel; 23-Lock hole; 3-Safety device; 31-Main railing; 311-Drive connection part; 312-Protrusion; 32-Moving railing assembly; 321-Moving railing; 41-Hydraulic cylinder body; 42-Piston rod. Detailed Implementation

[0041] This utility model discloses a weighing control system for a work platform and an aerial work platform to solve the problems of inaccurate weighing of platforms with uneven loads by existing weighing devices, which leads to the platform being in an overloaded or overloaded state for a long time, reducing the service life of the platform or making it prone to work accidents.

[0042] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0043] Please see Figure 1-6 , Figure 1 A structural block diagram of the weighing control system for the work platform provided in the embodiments of this application; Figure 2 A schematic diagram showing the installation position of the weighing sensor provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the operating platform provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the protective device in the work platform provided in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the activity platform in the operating platform provided in the embodiments of this application; Figure 6 A cross-sectional view of the fixed platform in the railway construction operation platform provided in the embodiments of this application.

[0044] In one specific embodiment, the weighing control system for the work platform provided in this application includes a work platform, a weighing platform support, a weighing detection component, an inclination detection component, and a control component;

[0045] The working platform is preferably a two-platform structure, consisting of one fixed platform, one movable platform, and a telescopic device. The telescopic device comprises telescopic device A and telescopic device B. The fixed platform is fixed to the deck of the railway engineering vehicle. During operation, the movable platform is pushed outward to the corresponding side of the main platform via the telescopic device as needed. When not in use, the telescopic device pulls the movable platform back under the main platform. Compared to a three-platform structure (mainly composed of one fixed platform, two movable platforms, and a traveling mechanism) folding platform, this design significantly reduces redundancy (such as reducing the number of platforms and material usage) while maintaining the same functionality, saving costs and reducing platform thickness and weight.

[0046] The weighing platform support is located at the bottom of the work platform and is used to support the work platform; the weighing platform support can be set as a telescopic frame, which is convenient for disassembly and assembly and provides sufficient support for the work platform.

[0047] The number of weighing detection components is multiple, at least three, preferably eight. These eight components are evenly distributed at the bottom of the work platform and are preferably detachably connected using threaded fasteners for easy assembly and disassembly. In other embodiments, the number of weighing detection components can be set between three and 15, such as four or ten, depending on the area of ​​the work platform. The weighing detection components are preferably weighing sensors 120.

[0048] The tilt detection component is configured as a tilt sensor 130, located at the bottom of the work platform, used to detect the horizontal tilt angle of the work platform and send the data to the control component. The control component is connected to both the weighing detection component and the tilt detection component, and obtains the actual load of the work platform based on the weighing load detected by the weighing detection component and the tilt angle detected by the tilt detection component. When the actual load of the work platform is greater than or equal to a preset overload threshold, the control alarm device is activated. The control component is preferably a PLC central controller 110. In other embodiments, it can be configured as other devices with control functions, and the specific form of the control component can be set as needed. The PLC central controller 110 reads the weight data G1, G2, ..., G8 from the weighing sensor 120 and the tilt angle data θ from the tilt sensor 130 via the CAN bus at regular intervals.

[0049] The weighing control system for a work platform provided in this application embodiment has the following technical advantages compared to the prior art:

[0050] In this application, several weighing and detection components are installed at the bottom of the work platform. Each weighing and detection component is located between the work platform and the weighing platform support to weigh the work platform and the load on it. At the same time, the tilt angle detection component detects the tilt angle between the work platform and the horizontal plane and obtains the actual load of the work platform. When the actual load of the work platform is greater than or equal to the preset overload threshold, the control alarm device alarms to promptly remind the operator of the current platform load status, prevent work accidents, and improve system safety. At the same time, it prevents the work platform from being in an overloaded or overloaded state for a long time and extends the service life of the work platform.

[0051] In this specific embodiment, the control component is based on the calculation formula.

[0052]

[0053] Obtain the actual load F of the working platform;

[0054] Where n is the total number of the weighing detection components, i is a positive integer less than or equal to n, and G i G represents the weighing load detected by the i-th weighing detection component. f Let θ be the weight of the work platform, and θ be the tilt angle between the work platform and the horizontal plane detected by the tilt angle detection component.

[0055] The actual load F of the work platform is obtained through the above formula (1). The actual load F of the work platform is compared with the preset overload threshold, and corresponding operations are performed according to the comparison result. The preset overload threshold can be the rated load of the work platform; optionally, n is 8, and each weighing detection component is evenly arranged at the bottom circumferential edge and center of the work platform.

[0056] Specifically, the control component is also used for:

[0057] When m e g <F≤1.5m e When g is reached, the control display 140 shows a yellow "Platform Overload" warning, the warning light 150 flashes a yellow warning light, and the buzzer 160 sounds an alarm in the first preset mode; among which, m e The rated load of the work platform is g, where g is the acceleration due to gravity; the first preset mode is to beep twice per second.

[0058] When F>1.5m e When g is reached, the control display 140 shows a red warning "Platform is seriously overloaded", the warning light 150 flashes a red warning color, and the buzzer 160 sounds an alarm in the second preset mode, which is 3-5 times per second.

[0059] When the work platform is under normal load, i.e., F≤m eWhen g indicates that the work platform is under normal load, the display 140 will not issue a warning, the buzzer 160 will not sound an alarm, and the warning light 150 will show green indicating normal operation.

[0060] In another embodiment, the railway construction operation platform provided in this embodiment includes: a fixed platform 1, a movable platform 2, and a protective device 3. The fixed platform 1 can be fixed to the frame of the work vehicle and remains stationary during maintenance.

[0061] The mobile platform 2 is movable and can be stored under the fixed platform 1, or moved in a first direction to one side of the fixed platform 1, or in a second direction to the other side of the fixed platform 1. Both the first and second directions are the width directions of the work vehicle, and they are opposite to each other. Figure 3 For example, assuming moving in the first direction is moving left and moving in the second direction is moving right, the movable platform 2 can move left to the left side of the fixed platform 1 and unfold, allowing the operator to stand on the movable platform 2 to inspect and maintain the components on the left. The movable platform 2 can also move right to the right side of the fixed platform 1 and unfold, allowing the operator to stand on the movable platform 2 to inspect and maintain the components on the right. Alternatively, the movable platform 2 can be moved to a position below the fixed platform 1 and folded up.

[0062] Two sets of protective devices 3 are respectively installed on the fixed platform 1. Figure 3 A set of protective devices 3 is provided on the left and right sides of the fixed platform 1. The protective device 3 on the left can be unfolded to the left or retracted to the right; the protective device 3 on the right can be unfolded to the right or retracted to the left.

[0063] When the movable platform 2 moves in the first direction, it causes a set of protective devices 3 to deploy and surround the perimeter of the movable platform 2. When the movable platform 2 moves in the second direction, it causes another set of protective devices 3 to deploy and surround the perimeter of the movable platform 2. For example, when the movable platform 2 moves to the left, the protective devices 3 on the left side deploy; when the movable platform 2 moves to the right, the protective devices 3 on the right side deploy. The protective devices 3 have a certain height and surround the perimeter of the movable platform 2 to protect the operator and prevent the operator from falling from the platform.

[0064] The operation of the aforementioned work platform is as follows: The work vehicle enters the tunnel and reaches the target maintenance position. If maintenance is required on the components on the left side of the work vehicle, the movable platform 2 is moved to the left, which in turn moves the left-side protective device 3 to the left. After the platform is in position, the operator can walk from the fixed platform 1 onto the movable platform 2 to perform the maintenance work. After the maintenance on the left side is completed, the operator returns to the fixed platform 1, and then the movable platform 2 is moved to the right until it is below the fixed platform 1, retracting the left-side protective device 3.

[0065] If maintenance is required on the components on the right side of the work vehicle, move the movable platform 2 to the right, which will also move the right-side protective device 3 to the right. After the platform is in position, the operator can walk from the fixed platform 1 onto the movable platform 2 to perform the maintenance work. After the maintenance on the right side is completed, the operator returns to the fixed platform 1, and then moves the movable platform 2 to the left until it is below the fixed platform 1, which will also retract the right-side protective device 3.

[0066] When maintenance is completed at the current location, the mobile platform 2 is moved to the left or right back below the fixed platform 1, and the work vehicle is moved to the next location that needs maintenance or leaves the tunnel.

[0067] The technical solution provided in this embodiment employs a fixed platform and a movable platform. The movable platform can be stored below the fixed platform, or moved in a first direction to one side of the fixed platform, or in a second direction to the other side of the fixed platform. Two sets of protective devices are respectively installed on the fixed platform. When the movable platform moves in the first direction, it causes one set of protective devices to unfold and surround the perimeter of the movable platform. When the movable platform moves in the second direction, it causes the other set of protective devices to unfold and surround the perimeter of the movable platform. This enables maintenance work to be carried out on both sides of the platform by moving the movable platform left and right, which has high flexibility and higher efficiency and safety compared with the traditional method that requires the construction of a support frame.

[0068] Additionally, the control component is also used for:

[0069] When m e g <F≤1.5m e At time g, the active platform stops moving relative to the fixed platform;

[0070] And / or, when F>1.5m e When g is reached, the control platform stops operating.

[0071] That is, when overloaded, the actuator is controlled through a safety interlock procedure to prevent the moving platform from performing dangerous operations.

[0072] Based on the above technical solutions, such as Figure 4 As shown, the protective device 3 includes a main railing 31 and movable railing assemblies 32. The protective surface formed by the main railing 31 is perpendicular to the first direction. Each end of the main railing 31 has a movable railing assembly 32, which can extend and retract along the first direction. The main railing 31 and the movable railing assemblies 32 at both ends surround the movable platform 2 on three sides to protect the operators on the movable platform 2. One end of the movable railing assembly 32 is fixed to the fixed platform 1.

[0073] This embodiment provides an implementation method: the movable railing assembly 32 includes at least two movable railings 321. One movable railing 321 is connected to the fixed platform 1, and the other movable railing 321 is connected to the main railing 31; a guide mechanism is provided between the movable railings 321 to allow relative movement along a first direction via the guide mechanism.

[0074] In this embodiment, four movable railings 321 are used. The four movable railings 321 are connected sequentially by a guide mechanism. The outer movable railing 321 is connected to the fixed platform 1, and the inner movable railing 321 is connected to the movable platform 2. During the unfolding process, the movable platform 2 moves to the left, first moving the movable railing 321 connected to the movable platform 2. When the movable railing 321 moves to its limit, it moves the next movable railing 321, until all movable railings 321 move to their limit positions, so that the movable platform 2 is fully unfolded.

[0075] The protective device 3 on the right is the same as the protective device 3 on the left, but the direction of movement is opposite to that of the protective device 3 on the left. The specific method will not be described in this embodiment.

[0076] The guiding mechanism provided between the adjacent movable railings 321 can be a slider and rail, a slider and groove, a pulley and groove, etc. For example, a groove is provided on one movable railing 321, and a slider is provided on another movable railing 321. The groove extends along a first direction, and the slider is embedded in the groove and moves along the groove, thereby driving and guiding the movement between the adjacent movable railings 321.

[0077] The main railing 31 is composed of multiple horizontal and vertical bars connected together. The height of the main railing 31 can be set according to the average height of an adult, for example, the height of the main railing 31 can be set to 1.2 meters.

[0078] Based on the above technical solution, a protective drive mechanism can also be adopted, which is set at the bottom of the fixed platform 1. The protective drive mechanism is used to drive the movable platform 2 to move in a first direction or in a second direction. The protective drive mechanism can be hydraulically powered, pneumatically powered, or electrically driven. Taking hydraulic power as an example, the protective drive mechanism includes a hydraulic cylinder 41 and a piston rod 42. The hydraulic cylinder 41 is set at the bottom of the fixed platform 1, and the piston rod 42 is connected to the bottom end of the main railing 31.

[0079] In practice, there are two protective drive mechanisms: one for driving the left movable platform 2 to move, and the other for driving the right movable platform 2 to move. Figure 3 In the middle, the protective device 3 on the left is in the deployed state, and a hydraulic cylinder 41 is located below the fixed platform 1, with the hydraulic cylinder 41 being shielded by the fixed platform 1. Figure 3Only the piston rod 42 extending from the protective drive mechanism is shown. The protective device 3 on the right is in the retracted state, with the piston rod 42 retracted into the hydraulic cylinder 41. Figure 3 Only the hydraulic cylinder 41 in another protective drive mechanism is shown.

[0080] One embodiment is as follows: drive connection parts 311 are provided at both ends of the main railing 31 for connecting to the piston rod 42, for example, by bolts.

[0081] Regarding the connection method between the activity platform 2 and the protective device 3, this embodiment also provides an implementation method: such as... Figure 5 As shown, the movable platform 2 has an insertion hole 21 on its side facing the main railing 31. The bottom of the main railing 31 has a protrusion 312 that can be inserted into the insertion hole 21. The upper surface of the movable platform 2 also has a locking hole 23 communicating with the insertion hole 21. A locking element can be inserted into the locking hole 23 and locked with the protrusion 312, thus achieving a fixed connection between the movable platform 2 and the protective device 3. The locking element can be a pin or a bolt.

[0082] In this embodiment, there are three sockets 21, spaced apart on the movable platform 2. Three corresponding protrusions 312 are also provided.

[0083] When maintenance is required on the left side of the tunnel, insert the locking device into the locking hole 23 to connect the movable platform 2 with the left-side protective device, and then drive the movable platform 2 to move to the left via the protective drive mechanism. After the maintenance on the left side is completed and the movable platform 2 has moved below the fixed platform 1, remove the locking device between the movable platform 2 and the left-side protective device.

[0084] When maintenance is required on the right side of the tunnel, insert the locking device into the locking hole 23 to connect the movable platform 2 with the protective device on the right side, and then drive the movable platform 2 to move to the right through the protective drive mechanism. After the maintenance on the right side is completed and the movable platform 2 has moved below the fixed platform 1, remove the locking device between the movable platform 2 and the protective device on the right side.

[0085] Furthermore, such as Figure 5 and Figure 6 As shown, the movable platform 2 has guide wheels 22 on its side facing the movable railing assembly 32, which can roll along the guide rail 11 on the fixed platform 1, making the relative movement between the movable platform 2 and the fixed platform 1 smoother. Figure 5 As shown, the movable platform 2 has six guide wheels 22 on its side, so that the movable platform 2 can be supported and guided by the fixed platform 1 when moving left or right, and the movable platform 2 will not detach from the fixed platform 1 when it moves to its extreme position. Figure 6 As shown, two guide rails 11 are provided on the lower surface of the fixed platform 1, which cooperate with the guide wheels 22 on both sides of the movable platform 2 respectively, and the guide wheels 22 travel along the guide rails 11.

[0086] Furthermore, the movable platform 2 is equipped with guide wheels 22 on its side facing the movable railing assembly 32, allowing it to roll along the guide rails on the fixed platform 1, thus making the relative movement between the movable platform 2 and the fixed platform 1 smoother. Figure 5 As shown, the side of the movable platform 2 is provided with six guide wheels 22 so that the movable platform 2 can be supported and guided by the fixed platform 1 when it moves to the left or right, and the movable platform 2 will not detach from the fixed platform 1 when it moves to the extreme position.

[0087] This application overcomes the problem of inaccurate weighing caused by uneven load distribution (especially off-center loading) or tilting of the platform. It can provide accurate load data for the platform and prevent dangerous operations on the moving platform through a safety interlock control actuator in case of overload. It also provides humane alarm reminders through displays 140, warning lights 150, buzzers 160, etc., reducing the risk of injury and safety hazards, and greatly improving the safety performance of the work platform.

[0088] Based on the work platform weighing control system provided in the above embodiments, this application also provides an aerial work platform, which includes the work platform weighing control system described in any of the above embodiments. Since the above work platform weighing control system has the above technical effects, the aerial work platform with the work platform weighing control system should also have the corresponding technical effects.

[0089] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0090] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A weighing control system for a work platform, characterized in that, include: Operating platform; A weighing platform support is located below the working platform and is used to support the working platform. A plurality of weighing and detection components, each of which is located between the working platform and the weighing platform support, are used to weigh the working platform and the load on it; The tilt angle detection component is located at the bottom of the work platform and detects the tilt angle between the work platform and the horizontal plane; A control component is connected to the weighing detection component and the tilt angle detection component, respectively, and is used to obtain the actual load of the work platform based on the weighing load detected by the weighing detection component and the tilt angle detected by the tilt angle detection component. The control component is used to control the alarm device to sound an alarm when the actual load of the work platform is greater than or equal to a preset overload threshold.

2. The weighing control system for the work platform according to claim 1, characterized in that, The weighing detection component is a weighing sensor; And / or, the tilt detection component is a tilt sensor.

3. The weighing control system for the work platform according to claim 1, characterized in that, The number of weighing detection components is 8, and each of the weighing detection components is evenly arranged at the bottom circumferential edge and center of the working platform.

4. The weighing control system for the work platform according to claim 1, characterized in that, The operating platform includes: Fixed platform; The activity platform can be stored below the fixed platform, or moved in the first direction to one side of the fixed platform, or in the second direction to the other side of the fixed platform; Two sets of protective devices are respectively installed on a fixed platform; When the platform moves in the first direction, it causes a set of protective devices to deploy and surround the platform; when the platform moves in the second direction, it causes another set of protective devices to deploy and surround the platform.

5. The weighing control system for the work platform according to claim 4, characterized in that, The protective device includes: a main railing and a set of movable railings; the protective surface formed by the main railing is perpendicular to the first direction, and a set of movable railings is provided at each end of the main railing, the movable railings being able to extend and retract along the first direction; one end of the movable railings is fixed to a fixed platform.

6. The weighing control system for the work platform according to claim 5, characterized in that, The movable railing assembly includes at least two movable railings; One movable railing is connected to the fixed platform, and the other movable railing is connected to the main railing; a guide mechanism is provided between the movable railings to allow them to move relative to each other in a first direction.

7. The weighing control system for the work platform according to claim 6, characterized in that, The guiding mechanism includes: a slide groove disposed on one movable railing and a slider disposed on another movable railing, the slide groove extending in a first direction, and the slider being embedded in the slide groove and moving along the slide groove.

8. The weighing control system for the work platform according to claim 5, characterized in that, The movable railing assembly consists of four movable railings; the four movable railings are connected sequentially via a guide mechanism; the outer movable railing is connected to the fixed platform, and the inner movable railing is connected to the movable platform.

9. The weighing control system for the work platform according to claim 5, characterized in that, Also includes: A protective drive mechanism is located at the bottom of the fixed platform; the protective drive mechanism is used to drive the movable platform to move in a first direction or in a second direction.

10. An aerial work platform, characterized in that, The weighing control system for the work platform as described in any one of claims 1-9.

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