Working platform weighing control system and aerial work platform

Abstract

The embodiment of the invention 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] The present application relates to the field of railway engineering technology, and in particular to a working platform weighing control system and an aerial working platform. Background Art

[0002] Platform overloading seriously threatens the safety of operators. The existing method is to use a weighing sensor to weigh the platform to detect the load of the platform. Most of them are based on uniform load distribution or weighing of smaller platforms, and are not suitable for uneven loads (especially eccentric loads) or weighing of larger platforms.

[0003] Most of the existing folding platforms that can be pushed and pulled on both sides adopt a three-platform structure combining a fixed platform (composed of an integral platform or two sub-platforms) and two movable platforms. The design has large redundancy, the material is not economical enough, and the platform is thicker, heavier and more expensive. Summary of the invention

[0004] The embodiments of the present application provide a work platform weighing control system and an aerial work platform to solve the problem that existing weighing devices cannot accurately weigh unevenly loaded platforms, causing the platform to be in an overloaded or overloaded state for a long time, reducing the service life of the platform or making it easy to cause work accidents.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A working platform weighing control system, comprising:

[0007] Working platform;

[0008] A weighing platform bracket, located below the working platform, and used to support the working platform;

[0009] A plurality of weighing and detecting components, any of which is located between the working platform and the weighing platform bracket, and is used to weigh the working platform and the load thereon;

[0010] An inclination detection component is located at the bottom of the working platform and detects the inclination angle between the working platform and the horizontal plane;

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

[0012] Optionally, the control component calculates according to the formula

[0013]

[0014] Get the actual load F of the working platform;

[0015] Wherein, n is the total number of the weighing detection components, i is a positive integer less than or equal to n, G i is the weighing load detected by the i-th weighing detection component, G f is the deadweight of the working platform, and θ is the inclination angle between the working platform and the horizontal plane detected by the inclination detection component.

[0016] Optionally, the control component is further used for:

[0017] When m e g <F≤1.5m e g, the control display shows a yellow warning of "platform overload", the warning light flashes yellow warning color, and the buzzer sounds an alarm in the first preset mode; where m e is the rated load of the working platform, g is the acceleration of gravity;

[0018] When F>1.5m e g, the control display shows a red reminder of "Platform is seriously overloaded", the warning light flashes red warning color, and the buzzer sounds an alarm in the second preset mode.

[0019] Optionally, n is 8, and the weighing and detection components are evenly arranged at the bottom circumferential edge and center of the working platform.

[0020] Optionally, the working platform comprises:

[0021] Fixed platform;

[0022] The movable platform can be stored under the fixed platform, or moved in a first direction to one side of the fixed platform, or moved in a second direction to the other side of the fixed platform;

[0023] Two sets of protective devices are respectively arranged on fixed platforms;

[0024] When the movable platform moves in a first direction, a group of protective devices are driven to unfold and surround the periphery of the movable platform; when the movable platform moves in a second direction, another group of protective devices are driven to unfold and surround the periphery of the movable platform.

[0025] Optionally, the control component is further used for:

[0026] When m e g <F≤1.5m e g, controlling the movable platform to stop moving relative to the fixed platform;

[0027] and / or, when F>1.5m e g, the movable platform is controlled to stop operating.

[0028] Optionally, the protective device includes: a main railing and a movable railing group; the protective surface formed by the main railing is perpendicular to the first direction, and a group of movable railing groups are respectively provided at both ends of the main railing, and the movable railing group can be extended and retracted along the first direction.

[0029] Optionally, the movable railing set comprises: at least two movable railings;

[0030] One of the movable railings is connected to the fixed platform, and the other movable railing is connected to the main railing; a guide mechanism is arranged between the movable railings so as to enable relative movement along a first direction through the guide mechanism.

[0031] Optionally, the guide mechanism includes: a slide groove provided on one movable railing and a slider provided on another movable railing, the slide groove extends along a first direction, and the slider is embedded in the slide groove and moves along the slide groove.

[0032] Optionally, the protective device includes: a main railing and a movable railing group; the protective surface formed by the main railing is perpendicular to the first direction, and a group of movable railing groups are respectively provided at both ends of the main railing, and the movable railing group can be extended and retracted along the first direction; one end of the movable railing group is fixed to the fixed platform.

[0033] The present application also provides an aerial work platform, comprising the work platform weighing control system described in any one of the above embodiments.

[0034] The working platform weighing control system provided in the embodiment of the present application includes: a working platform; a weighing platform bracket, located below the working platform and used to support the working platform; a plurality of weighing detection components, any one of which is located between the working platform and the weighing platform bracket, and is used to weigh the working platform and the load thereon; an inclination detection component, located at the bottom of the working platform, and is used to detect the inclination between the working platform and the horizontal plane; a control component, respectively connected to the weighing detection component and the inclination detection component, and used to obtain the actual load of the working platform based on the weighing load detected by the weighing detection component and the inclination detected by the inclination detection component, and the control component is used to control the alarm device to alarm when the actual load of the working platform is greater than or equal to a preset overload threshold.

[0035] Compared with the prior art, the weighing control system of a work platform provided in the embodiment of the present application has the following technical effects:

[0036] In the present application, a number of weighing and detection components are provided at the bottom of the working platform, and each weighing and detection component is located between the working platform and the weighing platform bracket to weigh the working platform and the load thereon; at the same time, the inclination between the working platform and the horizontal plane is detected by the inclination detection component, and the actual load of the working platform is obtained. When the actual load of the working platform is greater than or equal to the preset overload threshold, the alarm device is controlled to alarm, and the operating personnel are reminded of the current platform load situation in time to prevent operating accidents and improve system safety; at the same time, the working platform is prevented from being in an overloaded or overloaded state for a long time, thereby extending the service life of the working platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0038] Figure 1 A structural block diagram of a working platform weighing control system provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of the installation position of the weighing sensor provided in the embodiment of the present application;

[0040] Figure 3 A schematic diagram of the structure of the work platform provided in the embodiment of the present application;

[0041] Figure 4 A schematic diagram of the structure of a protective device in a work platform provided in an embodiment of the present application;

[0042] Figure 5 A schematic diagram of the structure of a movable platform in a work platform provided in an embodiment of the present application;

[0043] Figure 6 A cross-sectional view of a fixed platform in a railway construction work platform provided in an embodiment of the present application.

[0044] The following are marked in the accompanying drawings:

[0045] 110-PLC central controller, 120-weighing sensor, 130-tilt sensor, 140-display, 150-warning light, 160-buzzer;

[0046] 1-fixed platform; 11-guide rail; 2-movable platform; 21-jack; 22-guide wheel; 23-locking hole; 3-protective device; 31-main railing; 311-drive connection; 312-bump; 32-movable railing group; 321-movable railing; 41-hydraulic cylinder; 42-piston rod. DETAILED DESCRIPTION

[0047] The embodiment of the present invention discloses a work platform weighing control system and an aerial work platform to solve the problem that the existing weighing device cannot accurately weigh the platform with uneven load, causing the platform to be in an overloaded or overloaded state for a long time, reducing the service life of the platform or making it easy to cause work accidents.

[0048] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0049] See also Figure 1-6 , Figure 1 A structural block diagram of a working platform weighing control system provided in an embodiment of the present application; Figure 2 A schematic diagram of the installation position of the weighing sensor provided in the embodiment of the present application; Figure 3 A schematic diagram of the structure of the work platform provided in the embodiment of the present application; Figure 4 A schematic diagram of the structure of a protective device in a work platform provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of a movable platform in a work platform provided in an embodiment of the present application; Figure 6 A cross-sectional view of a fixed platform in a railway construction work platform provided in an embodiment of the present application.

[0050] In a specific embodiment, the operating platform weighing control system provided in the present application includes an operating platform, a weighing platform bracket, a weighing detection component, an inclination detection component and a control component;

[0051] The working platform is preferably a two-platform structure, preferably composed of a fixed platform, a movable platform and a telescopic device. Among them, the telescopic device is composed of a telescopic device A and a telescopic device B. The fixed platform is fixed on the deck of the railway engineering vehicle. When working, the movable platform is pushed outward to the corresponding side of the main platform through the telescopic device as needed. When idle, the telescopic device pulls the movable platform back to the bottom of the main platform. Compared with the folding platform of the three-platform structure (mainly composed of a fixed platform, two movable platforms and a running mechanism), the design redundancy is greatly reduced (such as reducing the number of platforms and reducing the amount of materials used) under the same function, saving costs, and reducing the thickness and weight of the platform.

[0052] The weighing platform bracket is located at the bottom of the working platform and is used to support the working platform; the weighing platform bracket can be set as a telescopic bracket to facilitate disassembly and assembly and provide sufficient supporting force for the working platform.

[0053] The number of weighing detection components is multiple, at least 3 or more, preferably 8, and the 8 weighing detection components are evenly arranged at the bottom of the working platform, preferably with threaded fasteners for detachable fixed connection, so as to facilitate disassembly and assembly. In other embodiments, the number of weighing detection components can be set between 3-15, such as 4 or 10, according to the area of ​​the working platform. The weighing detection component is preferably set as a weighing sensor 120.

[0054] The inclination detection component is set as an inclination sensor 130, which is located at the bottom of the working platform and is used to detect the horizontal inclination of the working platform and send it to the control component; the control component is connected to the weighing detection component and the inclination detection component respectively, and obtains the actual load of the working platform according to the weighing load detected by the weighing detection component and the detection inclination of the inclination detection component. When the actual load of the working platform is greater than or equal to the preset overload threshold, the control alarm device alarms. The control component is preferably a PLC central controller 110. In other embodiments, it can be set 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 of the weighing sensor 120 and the inclination data θ of the inclination sensor 130 through the CAN bus at regular intervals.

[0055] Compared with the prior art, the weighing control system of a work platform provided in the embodiment of the present application has the following technical effects:

[0056] In the present application, a number of weighing and detection components are provided at the bottom of the working platform, and each weighing and detection component is located between the working platform and the weighing platform bracket to weigh the working platform and the load thereon; at the same time, the inclination between the working platform and the horizontal plane is detected by the inclination detection component, and the actual load of the working platform is obtained. When the actual load of the working platform is greater than or equal to the preset overload threshold, the alarm device is controlled to alarm, and the operating personnel are reminded of the current platform load situation in time to prevent operating accidents and improve system safety; at the same time, the working platform is prevented from being in an overloaded or overloaded state for a long time, thereby extending the service life of the working platform.

[0057] In this specific embodiment, the control component calculates the formula

[0058]

[0059] Get the actual load F of the working platform;

[0060] Wherein, n is the total number of the weighing detection components, i is a positive integer less than or equal to n, G i is the weighing load detected by the i-th weighing detection component, G fis the deadweight of the working platform, and θ is the inclination angle between the working platform and the horizontal plane detected by the inclination detection component.

[0061] The actual load F of the working platform is obtained by the above formula (1), and the actual load F of the working 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 working platform; optionally, n is 8, and each weighing detection component is evenly arranged at the circumferential edge and center of the bottom of the working platform.

[0062] Specifically, the control component is also used to:

[0063] When m e g <F≤1.5m e g, the control display 140 displays a yellow warning of "platform overload", the warning light 150 flashes a yellow warning color, and the buzzer 160 buzzes an alarm in a first preset manner; wherein, m e is the rated load of the working platform, g is the acceleration due to gravity; the first preset mode is to beep twice per second.

[0064] When F>1.5m e g, the control display 140 displays a red reminder of "platform is seriously overloaded", the warning light 150 flashes a red warning color, and the buzzer 160 beeps in a second preset mode, and the second preset mode beeps 3-5 times per second.

[0065] When the working platform is loaded normally, that is, F≤m e g, it indicates that the working platform is loaded normally, the display 140 does not give any reminder, the buzzer 160 does not give any alarm, and the warning light 150 displays green as normal.

[0066] In another embodiment, the railway construction work platform provided in this embodiment includes: a fixed platform 1, a movable platform 2 and a protective device 3. Among them, the fixed platform 1 can be fixed to the frame of the work vehicle and remain fixed during the maintenance process.

[0067] The movable platform 2 is movable and can be stored under the fixed platform 1, or moved to one side of the fixed platform 1 in a first direction, or moved to the other side of the fixed platform 1 in a second direction. The first direction and the second direction are both width directions of the work vehicle, and the first direction and the second direction are opposite to each other. Figure 3For example, assuming that moving in the first direction is moving to the left, and moving in the second direction is moving to the right. Then the movable platform 2 can move to the left to the left side of the fixed platform 1 in an unfolded state, and the operator can stand on the movable platform 2 to inspect and maintain the components on the left. The movable platform 2 can also move to the right to the right side of the fixed platform 1 in an unfolded state, and the operator can stand on the movable platform 2 to inspect and maintain the components on the right. Alternatively, the movable platform 2 can also move to the bottom of the fixed platform 1 in a stored state.

[0068] Two sets of protection devices 3 are respectively arranged on the fixed platform 1. Figure 3 A set of protection devices 3 is respectively arranged on the left and right sides of the fixed platform 1. The protection device 3 on the left side can be unfolded to the left or stored to the right; the protection device 3 on the right side can be unfolded to the right or stored to the left.

[0069] When the movable platform 2 moves in the first direction, it drives one set of protective devices 3 to unfold and surround the outer periphery of the movable platform 2. When the movable platform 2 moves in the second direction, it drives another set of protective devices 3 to unfold and surround the outer periphery of the movable platform 2. For example, when the movable platform 2 moves to the left, it drives the protective devices 3 on the left to unfold; when the movable platform 2 moves to the right, it drives the protective devices 3 on the right to unfold. The protective devices 3 have a certain height and surround the outer periphery of the movable platform 2 to protect the operator and prevent the operator from falling from the platform.

[0070] The use process of the above-mentioned working platform is as follows: the working vehicle drives into the tunnel and reaches the target maintenance position. If the components on the left side of the working vehicle need to be repaired, the movable platform 2 is moved to the left, and the left protective device 3 is driven to move to the left. After moving to the right, the operator can walk from the fixed platform 1 to the movable platform 2 to perform maintenance work. After the left side maintenance is completed, the operator returns to the fixed platform 1, and then moves the movable platform 2 to the right to return to the bottom of the fixed platform 1, and drives the left protective device 3 to retract.

[0071] If the components on the right side of the work vehicle need to be repaired, the movable platform 2 is moved to the right, and the right side protection device 3 is driven to move to the right. After the movement is in place, the operator can walk from the fixed platform 1 to the movable platform 2 to perform the maintenance work. After the right side maintenance is completed, the operator returns to the fixed platform 1, and then moves the movable platform 2 to the left to the bottom of the fixed platform 1, and drives the right side protection device 3 to retract.

[0072] When the inspection is completed at the current position, the movable platform 2 is moved leftward or rightward back to the bottom of the fixed platform 1, and the work vehicle is moved to the next position requiring inspection or leaves the tunnel.

[0073] The technical solution provided in this embodiment adopts a fixed platform and a movable platform. The movable platform can be stored under the fixed platform, or moved to one side of the fixed platform in a first direction, or moved to the other side of the fixed platform in a second direction; two groups of protective devices are respectively arranged on the fixed platform; when the movable platform moves in the first direction, one group of protective devices is driven to unfold and surround the periphery of the movable platform; when the movable platform moves in the second direction, the other group of protective devices is driven to unfold and surround the periphery of the movable platform, so that the movable platform can move left and right to perform maintenance operations on both sides of the platform, which has high flexibility and higher efficiency and safety compared with the traditional method that requires the construction of a bracket.

[0074] At the same time, the control components are also used to:

[0075] When m e g <F≤1.5m e When g, the movable platform is controlled to stop moving relative to the fixed platform;

[0076] and / or, when F>1.5m e g, control the movable platform to stop working.

[0077] That is, when overloaded, the actuator is controlled through the safety interlock program to prohibit the movable platform from performing dangerous operations.

[0078] Based on the above technical solution, Figure 4 As shown, the protection device 3 includes: a main railing 31 and a movable railing group 32, wherein the protection surface formed by the main railing 31 is perpendicular to the first direction, and a group of movable railing groups 32 are respectively provided at both ends of the main railing 31, and the movable railing group 32 can be extended and retracted along the first direction. The main railing 31 and the movable railing groups 32 at both ends surround the movable platform 2 on three sides to protect the operator on the movable platform 2. One end of the movable railing group 32 is fixed to the fixed platform 1.

[0079] This embodiment provides an implementation method: the movable railing group 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 so as to move relatively in the first direction through the guide mechanism.

[0080] In this embodiment, four movable railings 321 are used. The four movable railings 321 are connected in sequence through a guide mechanism, the movable railing 321 located on the outside is connected to the fixed platform 1, and the movable railing 321 located on the inside is connected to the movable platform 2. During the unfolding process, the movable platform 2 moves to the left, first driving the movable railing 321 connected to the movable platform 2 to move, and when the movable railing 321 moves to the limit, it drives the next movable railing 321 to move, until all the movable railings 321 move to the limit position, so that the movable platform 2 is fully unfolded.

[0081] The protection device 3 on the right is the same as the protection device 3 on the left, and its moving direction is opposite to that of the protection device 3 on the left. The specific method will not be repeated in this embodiment.

[0082] The guide mechanism provided between the adjacent movable rails 321 may be a slider and a slide rail, a slider and a slide groove, a pulley and a slide groove, etc. For example, a slide groove is provided on one movable rail 321, and a slider is provided on another movable rail 321, the slide groove extends along a first direction, and the slider is embedded in the slide groove and moves along the slide groove, so as to realize driving and guiding the movement between the adjacent movable rails 321.

[0083] The main railing 31 includes a plurality of horizontal bars 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 is set to 1.2 meters.

[0084] On the basis of the above technical solution, a protection drive mechanism can also be used, which is arranged at the bottom of the fixed platform 1. The protection drive mechanism is used to drive the movable platform 2 to move in the first direction or in the second direction. The protection drive mechanism can be driven by hydraulic power, pneumatic power or motor power. Taking hydraulic power as an example, the protection drive mechanism includes a hydraulic cylinder body 41 and a piston rod 42. The hydraulic cylinder body 41 is arranged at the bottom of the fixed platform 1, and the piston rod 42 is connected to the bottom end of the main railing 31.

[0085] In practice, there are two protection drive mechanisms, one for driving the movable platform 2 on the left side to move, and the other for driving the movable platform 2 on the right side to move. Figure 3 In the figure, the left protective device 3 is in the unfolded state, a hydraulic cylinder body 41 is located below the fixed platform 1, and the hydraulic cylinder body 41 is blocked by the fixed platform 1. Figure 3 Only one piston rod 42 extending from the protection drive mechanism is shown. The protection device 3 on the right is in the stowed state, and the piston rod 42 is retracted into the hydraulic cylinder body 41. Figure 3 Only the hydraulic cylinder 41 in the other guard drive mechanism is shown.

[0086] One implementation is: driving connection parts 311 are provided at both ends of the main railing 31 for connecting with the piston rod 42, for example, by bolts.

[0087] Regarding the connection mode between the movable platform 2 and the protective device 3, this embodiment also provides an implementation method: Figure 5 As shown, a plug hole 21 is provided on the side of the movable platform 2 facing the main railing 31. A protrusion 312 that can be inserted into the plug hole 21 is provided at the bottom of the main railing 31. A locking hole 23 connected to the plug hole 21 is also provided on the upper surface of the movable platform 2. A locking member can be inserted into the locking hole 23 and locked with the protrusion 312 to achieve a fixed connection between the movable platform 2 and the protective device 3. The locking member can be a latch or a bolt.

[0088] In this embodiment, there are three plug holes 21, which are arranged at intervals on the movable platform 2. Three protrusions 312 are correspondingly arranged.

[0089] When the left side of the tunnel needs to be inspected, the locking piece is inserted into the lock hole 23 to connect the movable platform 2 with the left side protection device, and then the movable platform 2 is driven to move to the left by the protection drive mechanism. After the left side inspection is completed and the movable platform 2 is moved under the fixed platform 1, the locking piece between the movable platform 2 and the left side protection device is removed.

[0090] When the right side of the tunnel needs to be inspected, the locking piece is inserted into the lock hole 23 to connect the movable platform 2 with the protective device on the right side, and then the movable platform 2 is driven to move to the right by the protective drive mechanism. After the right side inspection is completed and the movable platform 2 is moved under the fixed platform 1, the locking piece between the movable platform 2 and the protective device on the right side is removed.

[0091] Further, such as Figure 5 and Figure 6 As shown, the side of the movable platform 2 facing the movable railing group 32 is provided with a guide wheel 22, which can roll along the guide rail 11 on the fixed platform 1, so that the relative movement between the movable platform 2 and the fixed platform 1 is smoother. Figure 5 As shown, six guide wheels 22 are provided on the side of the movable platform 2 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 be separated from the fixed platform 1 when it moves to the extreme position. Figure 6 As shown, two guide rails 11 are provided on the lower surface of the fixed platform 1 , which respectively cooperate with the guide wheels 22 on both sides of the movable platform 2 , and the guide wheels 22 run along the guide rails 11 .

[0092] The present application overcomes the problem of inaccurate weighing caused by uneven loading (especially eccentric loading) or tilting of the platform, can provide accurate loading data for the platform, and prohibits the movable platform from performing dangerous operations through a safety interlock control actuator in the event of overloading, and reduces injury risks and safety hazards through humanized alarm reminders such as the display 140, warning lights 150, and buzzers 160, thereby greatly improving the safety performance of the work platform.

[0093] Based on the work platform weighing control system provided in the above embodiments, the present 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 corresponding technical effects.

[0094] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0095] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A weighing control system for a working platform, characterized in that: include: Working platform; A weighing platform bracket, located below the working platform, and used to support the working platform; A plurality of weighing and detecting components, any of which is located between the working platform and the weighing platform bracket, and is used to weigh the working platform and the load thereon; An inclination detection component is located at the bottom of the working platform and detects the inclination angle between the working platform and the horizontal plane; A control component is connected to the weighing detection component and the inclination detection component, respectively, and is used to obtain the actual load of the working platform based on the weighing load detected by the weighing detection component and the inclination detected by the inclination detection component. The control component is used to control the alarm device to alarm when the actual load of the working platform is greater than or equal to a preset overload threshold.

2. The working platform weighing control system according to claim 1, characterized in that: The control component calculates according to the formula Get the actual load F of the working platform; Wherein, n is the total number of the weighing detection components, i is a positive integer less than or equal to n, G i is the weighing load detected by the i-th weighing detection component, G f is the deadweight of the working platform, and θ is the inclination angle between the working platform and the horizontal plane detected by the inclination detection component.

3. The working platform weighing control system according to claim 2, characterized in that: The control component is also used for: When m e g <F≤1.5m e g, the control display shows a yellow warning of "platform overload", the warning light flashes yellow warning color, and the buzzer sounds an alarm in the first preset mode; where m e is the rated load of the working platform, g is the acceleration of gravity; When F>1.5m e g, the control display shows "Platform is seriously overloaded" in red, the warning light flashes in red warning color, and the buzzer sounds an alarm in the second preset mode.

4. The working platform weighing control system according to claim 2, characterized in that: n is 8, and the weighing detection components are evenly arranged at the circumferential edge and center of the bottom of the working platform.

5. The working platform weighing control system according to claim 3, characterized in that: The working platform comprises: Fixed platform; The movable platform can be stored under the fixed platform, or moved in a first direction to one side of the fixed platform, or moved in a second direction to the other side of the fixed platform; Two sets of protective devices are respectively arranged on fixed platforms; When the movable platform moves in a first direction, a group of protective devices are driven to unfold and surround the periphery of the movable platform; when the movable platform moves in a second direction, another group of protective devices are driven to unfold and surround the periphery of the movable platform.

6. The working platform weighing control system according to claim 5, characterized in that: The control component is also used for: When m e g <F≤1.5m e g, controlling the movable platform to stop moving relative to the fixed platform; and / or, when F>1.5m e g, the movable platform is controlled to stop operating.

7. The working platform weighing control system according to claim 5, characterized in that: The protective device includes: a main railing and a movable railing group; the protective surface formed by the main railing is perpendicular to the first direction, and a group of movable railing groups are respectively provided at both ends of the main railing, and the movable railing group can be extended and retracted along the first direction; one end of the movable railing group is fixed to the fixed platform.

8. The working platform weighing control system according to claim 7, characterized in that: The movable railing group includes: at least two movable railings; One of the movable railings is connected to the fixed platform, and the other movable railing is connected to the main railing; a guide mechanism is arranged between the movable railings so as to enable relative movement along a first direction through the guide mechanism.

9. The working platform weighing control system according to claim 8, characterized in that: The guide mechanism comprises: a slide groove arranged on one movable railing and a slider arranged on another movable railing, the slide groove extends along a first direction, and the slider is embedded in the slide groove and moves along the slide groove.

10. An aerial work platform, characterized in that: It includes the working platform weighing control system as described in any one of claims 1-9.

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