Device and method for measuring residual deformation after safety pressure lever of recreation facility is stressed
By designing a device including a mobile bracket, a 3D scanner and a tensile experimental device, the problem of difficult to measure the residual deformation after the safety pressure bar of the amusement facility is subjected to stress, and a high-precision and rapid detection effect is achieved.
Patent Information
- Application Number
- CN202510127070.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-29
- Publication Date
- 2025-05-23
AI Technical Summary
The prior art is difficult to accurately measure the residual deformation after the safety bar of the amusement facility is under pressure, resulting in the inability to carry out regular testing tests effectively.
A device including a mobile bracket, a multi-camera array fusion 3D scanner, a tensile experimental device, a controller and a human-machine interactive operating interface was designed. By performing multiple loading tests and three-dimensional scanning of the safety pressure bar, it measures the residual deformation after being subjected to force.
It realizes rapid and accurate measurement of the residual deformation amount after the safety pressure bar is subjected to stress, which is convenient and fast to detect and high measurement accuracy, and solves the problem of measurement difficulties in the prior art.
Smart Images
Figure CN120027722A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of amusement facility detection, and in particular relates to a device and a method for measuring the residual deformation of a safety pressure bar of an amusement facility after being subjected to force. Background Art
[0002] In the operation of amusement facilities, in order to prevent passengers from falling off the rides when the equipment rolls or has a large impact, the entertainment equipment is equipped with corresponding forms of safety pressure bars. Safety pressure bars have different forms according to different usage occasions. The loads on the safety pressure bars of amusement facilities are relatively complex, including inertial loads, friction loads, impacts, and safety pressure bar idle travel interference torque loads.
[0003] In GB 8408-2018 Safety Specifications for Large Amusement Facilities, Section 6.8.2.2 has clear requirements for safety bars. The safety bars themselves should have sufficient strength, locking force and suitable structural form to ensure that passengers are not thrown out or fall. Therefore, it is necessary to regularly inspect the safety bars to see if the strength meets the requirements and whether there is a large amount of deformation. However, the safety bars are irregular in shape and their deformation is not easy to measure, which makes it impossible to conduct regular inspections and tests effectively. Summary of the invention
[0004] The purpose of the present invention is to provide a device and method for measuring the residual deformation of a safety pressure bar of an amusement facility after being subjected to force, so as to solve the technical problem that the residual deformation of a safety pressure bar of an amusement facility after being subjected to force cannot be accurately measured in the prior art.
[0005] In order to solve the above problems, the present invention is implemented by the following technical solutions: A device for measuring the residual deformation of the safety pressure bar of an amusement facility after being stressed, comprising a mobile bracket, a multi-camera array fusion 3D scanner arranged on the mobile bracket, a tensile test device, a controller and a human-computer interactive operation interface; The tensile test device is used to perform a loading tensile test on the safety pressure bar; The mobile bracket includes a first bracket capable of moving along the X-axis direction and a second bracket capable of moving along the Y-axis direction; the multi-camera array fusion 3D scanner is arranged on the first bracket or the second bracket; The multi-camera array fusion 3D scanner is located above the stretching test device and can perform a three-dimensional scan of the entire safety pressure bar; The controller is electrically connected to the multi-camera array fusion 3D scanner and the electrical components of the stretching experimental device; the human-computer interactive operation interface communicates with the controller and serves as a display and input terminal.
[0006] This application sets a mobile bracket and a multi-camera array fusion 3D scanner, places the safety pressure bar to be tested on the stretching test device, and the test personnel operate the human-machine interface to control the first bracket to move along the X-axis direction and the second bracket to move along the Y-axis through the controller, driving the multi-camera array fusion 3D scanner to move, scan the safety pressure bar from multiple angles, and quickly and accurately obtain the shape of the safety pressure bar. The device is used to measure the deformation of the safety pressure bar, and the detection is convenient and fast, and the detection accuracy is very high.
[0007] The measurement principle of the multi-camera array fusion 3D scanner is a prior art and will not be described in detail.
[0008] Further optimized, the first bracket includes a crossbeam and two legs, the crossbeam is fixed to the upper ends of the two legs, and the first bracket is a door-shaped frame as a whole; Two first slide rails are arranged in parallel on the base, the lower ends of the two legs are movably clamped on the corresponding first slide rails, and the first driving mechanism drives the first bracket to slide along the first slide rails; The crossbeam is provided with a second slide rail along its length direction, the second bracket is movably clamped on the second slide rail, and the second driving mechanism drives the second bracket to slide along the second slide rail; The multi-camera array fusion 3D scanner is arranged on the second bracket, and the stretching test device is located between the two first slide rails.
[0009] Further optimized, the first driving mechanism includes two first motors and two first lead screws arranged on the base; the first lead screws are rotatably connected to the base through the first mounting seat, and the first lead screws are arranged parallel to the first slide rail, a first connecting piece is fixedly arranged at the lower end of each leg, a threaded through hole is opened on the first connecting piece, and each first connecting piece is threadedly connected to a corresponding first lead screw; the output shaft of each first motor is connected to the corresponding first lead screw through a transmission assembly; The second driving mechanism includes a second motor and a second lead screw arranged on the crossbeam, the second lead screw is rotatably connected to the crossbeam through a second mounting seat, and the second lead screw is arranged parallel to the second slide rail; a second connecting member is fixedly arranged on the second bracket, a threaded through hole is opened on the second connecting member, and the second connecting member is threadedly connected to the second lead screw; the output shaft of the second motor is connected to the second lead screw through a transmission assembly; The first motor and the second motor are both electrically connected to the controller.
[0010] Further optimized, the tensile test device includes a test bench and a loading unit; The safety pressure bar is arranged on the test bench, and the loading unit applies longitudinal tension to the entire pressure bar to test the deformation of the safety pressure bar under different tensions.
[0011] Further optimization, the loading unit is a hydraulic cylinder, and a hook is fixedly arranged on the test bench; The end of the piston rod of the hydraulic cylinder is hinged to the middle connection point of the safety pressure bar, and the lower end of the safety pressure bar is hinged to the test bench, and the hinge point is marked as A; the safety pressure bar is driven to rotate around the hinge point A by the extension and contraction of the piston rod of the hydraulic cylinder. When the safety pressure bar rotates downward by a certain angle, its upper end is hung on the draw hook, and continued rotation applies tension to the safety pressure bar; The control module of the hydraulic cylinder is electrically connected to the controller.
[0012] The method for measuring the residual deformation of the safety pressure bar of an amusement facility after being subjected to force comprises the following steps: Step S1: Establishing a database, which includes models of safety pressure bars of various amusement facilities on the market, and the design size and shape of each model of safety pressure bar; Step S2: The safety pressure bar to be tested is placed on the test bench. The tester operates the human-machine interface to control the first bracket to move along the X-axis direction and the second bracket to move along the Y-axis direction through the controller, driving the multi-camera array fusion 3D scanner to move, and scans the safety pressure bar from multiple angles to obtain the initial size and shape of the safety pressure bar; Step S3: The inspector operates the human-machine interface to input the loading tension F, the loading time t for each time, and the number of tests N. Then the controller issues a command to control the extension and retraction of the hydraulic cylinder piston rod. The safety pressure bar is driven to rotate around the hinge point A by the extension of the hydraulic cylinder piston rod. When the safety pressure bar rotates downward by a certain angle, its upper end is hung on the draw hook. If it continues to rotate, a tension force is applied to the safety pressure bar. After reaching the set rotation angle, the loading time t is set continuously, and then the hydraulic cylinder piston rod is controlled to retract. Then, the rear safety pressure bar is driven to rotate in the opposite direction around the hinge point A, and the safety pressure bar is separated from the draw hook, completing a loading test. Step S4: After repeating the loading test N times, the inspector operates the human-machine interface to control the first bracket to move along the X-axis direction and the second bracket to move along the Y-axis direction through the controller, driving the multi-camera array fusion 3D scanner to move, and scan the safety pressure bar from multiple angles to obtain the size and shape of the safety pressure bar after the test; Step S5: The controller compares the size and shape of the safety pressure bar measured twice before and after the loading test, obtains the residual deformation of the full pressure bar after being stressed, and displays the result through the human-machine interface.
[0013] Further optimization is performed by setting different rotation angles to correspond to different loading tensions.
[0014] Compared with the prior art, the present invention has the following beneficial effects: This application sets a mobile bracket and a multi-camera array fusion 3D scanner, places the safety pressure bar to be inspected on the test bench and below the bracket, and performs multiple loading tests on the safety pressure bar. The inspection personnel operate the human-machine interface to control the first bracket to move along the X-axis direction and the second bracket to move along the Y-axis through the controller, driving the multi-camera array fusion 3D scanner to move, scan the tank from multiple angles, measure the size and shape of the safety pressure bar twice before and after the loading test, and compare them to obtain the residual deformation of the full pressure bar after force is applied, and display the results through the human-machine interface. It is very convenient and has a very high measurement accuracy, which solves the problem that the residual deformation of the safety pressure bar after force is difficult to measure in the prior art, and provides a new measure for the detection of safety pressure bars of amusement facilities. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of a device for measuring the residual deformation of a safety pressure bar of an amusement facility after being subjected to force in the first embodiment; Figure 2 A top view of the movable bracket in the first embodiment; Figure 3 It is a structural schematic diagram of the tensile test device in Example 1; Figure 4 The electrical control block diagram of the device for measuring the residual deformation of the safety pressure bar of an amusement facility after being stressed; Figure 5 The present invention is a flow chart of the method for measuring the residual deformation of the safety pressure bar of an amusement facility after being subjected to force. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Embodiment 1:
[0017] like Figure 1-4 As shown, the device for measuring the residual deformation of the safety pressure bar of an amusement facility after being subjected to force includes a mobile bracket, a multi-camera array fusion 3D scanner 3 arranged on the mobile bracket, a tensile test device 5, a controller and a human-computer interactive operation interface.
[0018] The tensile test device 5 is used to perform a loading tensile test on the safety pressure bar 6 .
[0019] The mobile bracket includes a first bracket 1 that can move along the X-axis direction and a second bracket 2 that can move along the Y-axis direction; the multi-camera array fusion 3D scanner is arranged on the second bracket 2.
[0020] The multi-camera array fusion 3D scanner 3 is located above the stretching test device 5 and can perform a three-dimensional scan of the entire safety pressure bar 6 .
[0021] The controller is electrically connected to the multi-camera array fusion 3D scanner and the electrical components of the stretching experimental device; the human-computer interactive operation interface communicates with the controller and serves as a display and input terminal.
[0022] In this embodiment, the first bracket 1 includes a crossbeam 12 and two legs 11, the crossbeam 12 is fixed to the upper ends of the two legs 11, and the first bracket 1 is a door-shaped frame as a whole; two first slide rails 13 are arranged in parallel on the base, and the lower ends of the two legs are movably clamped on the corresponding first slide rails, and the first driving mechanism drives the first bracket to slide along the first slide rail; a second slide rail 21 is arranged on the crossbeam 12 along its length direction, and the second bracket 2 is movably clamped on the second slide rail, and the second driving mechanism drives the second bracket to slide along the second slide rail; the multi-camera array fusion 3D scanner 3 is arranged on the second bracket, and the tensile test device is located between the two first slide rails.
[0023] In this embodiment, the first driving mechanism includes two first motors 14 and two first lead screws 15 arranged on the base 4; the first lead screws 15 are rotatably connected to the base through a first mounting seat, and the first lead screws 15 are arranged parallel to the first slide rail, and a first connecting member is fixedly provided at the lower end of each leg, a threaded through hole is provided on the first connecting member, and each first connecting member is threadedly connected to a corresponding first lead screw; the output shaft of each first motor is connected to the corresponding first lead screw through a transmission assembly.
[0024] The second driving mechanism includes a second motor 22 and a second lead screw 23 arranged on the crossbeam 12, the second lead screw is rotatably connected to the crossbeam 12 through a second mounting seat, and the second lead screw 23 is arranged parallel to the second slide rail 21; a second connecting member is fixedly arranged on the second bracket, a threaded through hole is provided on the second connecting member, and the second connecting member is threadedly connected to the second lead screw; the output shaft of the second motor is connected to the second lead screw through a transmission assembly; the first motor 14 and the second motor 22 are both electrically connected to the controller. The controller controls the first motor to start, drives the first lead screw to rotate, and drives the first bracket to move along a slide rail; the controller controls the second motor to start, drives the second lead screw to rotate, and drives the second bracket and the multi-camera array fusion 3D scanner to move along two slide rails, so as to realize the multi-directional movement of the multi-camera array fusion 3D scanner on the bracket, and achieve the purpose of scanning the safety pressure bar at multiple angles.
[0025] The first motor and the second motor are both servo motors. The servo motor has precise speed control, very rigid torque-speed characteristics, high efficiency, low heat generation, low noise, and is convenient for achieving reciprocating motion of the first bracket and the second bracket by controlling the forward and reverse rotation of the motor.
[0026] In this embodiment, the tensile test device 5 includes a test bench and a loading unit; The safety pressure bar 6 is arranged on the test bench 51, and the loading unit applies longitudinal tension to the safety pressure bar to test the deformation of the safety pressure bar under different tensions.
[0027] In this embodiment, the loading unit is a hydraulic cylinder 52, and a hook 53 is fixedly provided on the test bench; the end of the piston rod of the hydraulic cylinder is hinged to the middle connection point of the safety pressure bar, and the lower end of the safety pressure bar is hinged to the test bench, and the hinge point is marked as A; the safety pressure bar is driven to rotate around the hinge point A by the extension and contraction of the hydraulic cylinder piston rod. When the safety pressure bar rotates downward by a certain angle, its upper end is hung on the hook, and continued rotation applies tension to the safety pressure bar; The control module of the hydraulic cylinder is electrically connected to the controller. Embodiment 2:
[0028] like Figure 5 As shown, the method for measuring the residual deformation of the safety pressure bar of an amusement facility after being subjected to force comprises the following steps: Step S1: Establishing a database, which includes models of safety pressure bars of various amusement facilities on the market, and the design size and shape of each model of safety pressure bar; Step S2: The safety pressure bar to be tested is placed on the test bench. The tester operates the human-machine interface to control the first bracket to move along the X-axis direction and the second bracket to move along the Y-axis through the controller, driving the multi-camera array fusion 3D scanner to move, and scans the safety pressure bar from multiple angles to obtain the initial size and shape of the safety pressure bar.
[0029] Step S3: The inspector operates the human-machine interface to input the loading tension F, the loading time t for each time and the number of tests N, and the controller issues a command to control the extension and retraction of the hydraulic cylinder piston rod, and drives the safety pressure bar to rotate around the hinge point A through the extension of the hydraulic cylinder piston rod. When the safety pressure bar rotates downward by a certain angle, its upper end is hung on the hook, and continued rotation applies tension to the safety pressure bar; after reaching the set rotation angle, the loading time t is continuously set, and then the hydraulic cylinder piston rod is controlled to retract, and the rear safety pressure bar is driven to rotate in the opposite direction around the hinge point A, and the safety pressure bar is disengaged from the hook, completing a loading test.
[0030] Different loading tensions will correspond to different rotation angles. After the full pressure bar is hung on the hook, it is driven by the hydraulic cylinder to continue rotating, which applies tension to the safety pressure bar. The greater the driving force for continued rotation, the greater the tension on the safety pressure bar.
[0031] The loading tension can be set to 120%, 150%, 200% of the safety strength of the safety pressure bar, etc., and the number of tests N can be set to 2000 times, 5000 times, 10000 times, etc. according to the specific experimental requirements.
[0032] Step S4: After repeating the loading test N times, the inspector operates the human-machine interface to control the first bracket to move along the X-axis direction and the second bracket to move along the Y-axis direction through the controller, driving the multi-camera array fusion 3D scanner to move, and scan the safety pressure bar from multiple angles to obtain the size and shape of the safety pressure bar after the test.
[0033] Step S5: The controller compares the size and shape of the safety pressure bar measured twice before and after the loading test, obtains the residual deformation of the full pressure bar after being stressed, and displays the result through the human-machine interface.
[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention; any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A device for measuring the residual deformation of the safety pressure bar of an amusement facility after being stressed, characterized in that: It includes a mobile support, a multi-camera array fusion 3D scanner arranged on the mobile support, a stretching experiment device, a controller and a human-computer interactive operation interface; The tensile test device is used to perform a loading tensile test on the safety pressure bar; The mobile bracket includes a first bracket capable of moving along the X-axis direction and a second bracket capable of moving along the Y-axis direction; the multi-camera array fusion 3D scanner is arranged on the first bracket or the second bracket; The multi-camera array fusion 3D scanner is located above the stretching test device and can perform a three-dimensional scan of the entire safety pressure bar; The controller is electrically connected to the multi-camera array fusion 3D scanner and the electrical components of the stretching experimental device; the human-computer interactive operation interface communicates with the controller and serves as a display and input terminal.
2. The device for measuring the residual deformation of the safety pressure bar of an amusement facility after being subjected to force according to claim 1 is characterized in that: The first bracket includes a crossbeam and two legs, the crossbeam is fixed to the upper ends of the two legs, and the first bracket is a door-shaped frame as a whole; Two first slide rails are arranged in parallel on the base, the lower ends of the two legs are movably clamped on the corresponding first slide rails, and the first driving mechanism drives the first bracket to slide along the first slide rails; The crossbeam is provided with a second slide rail along its length direction, the second bracket is movably clamped on the second slide rail, and the second driving mechanism drives the second bracket to slide along the second slide rail; The multi-camera array fusion 3D scanner is arranged on the second bracket, and the stretching test device is located between the two first slide rails.
3. The device for measuring the residual deformation of the safety pressure bar of an amusement facility after being stressed according to claim 2, characterized in that: The first driving mechanism comprises two first motors and two first lead screws arranged on the base; the first lead screws are rotatably connected to the base through the first mounting seat, and the first lead screws are arranged parallel to the first slide rail, a first connecting member is fixedly arranged at the lower end of each leg, a threaded through hole is opened on the first connecting member, and each first connecting member is threadedly connected to a corresponding first lead screw; the output shaft of each first motor is connected to the corresponding first lead screw through a transmission assembly; The second driving mechanism includes a second motor and a second lead screw arranged on the crossbeam, the second lead screw is rotatably connected to the crossbeam through a second mounting seat, and the second lead screw is arranged parallel to the second slide rail; a second connecting member is fixedly arranged on the second bracket, a threaded through hole is opened on the second connecting member, and the second connecting member is threadedly connected to the second lead screw; the output shaft of the second motor is connected to the second lead screw through a transmission assembly; The first motor and the second motor are both electrically connected to the controller.
4. The device for measuring the residual deformation of the safety pressure bar of an amusement facility after being subjected to force according to claim 3, characterized in that: The tensile test device comprises a test bench and a loading unit; The safety pressure bar is arranged on the test bench, and the loading unit applies longitudinal tension to the entire pressure bar to test the deformation of the safety pressure bar under different tensions.
5. The device for measuring the residual deformation of the safety pressure bar of an amusement facility after being stressed according to claim 4, characterized in that: The loading unit is a hydraulic cylinder, and a hook is fixedly arranged on the test bench; The end of the piston rod of the hydraulic cylinder is hinged to the middle connection point of the safety pressure bar, and the lower end of the safety pressure bar is hinged to the test bench, and the hinge point is marked as A; the safety pressure bar is driven to rotate around the hinge point A by the extension and contraction of the piston rod of the hydraulic cylinder. When the safety pressure bar rotates downward by a certain angle, its upper end is hung on the draw hook, and continued rotation applies tension to the safety pressure bar; The control module of the hydraulic cylinder is electrically connected to the controller.
6. The method for measuring the residual deformation of the safety pressure bar of an amusement facility after being subjected to force according to claim 5 is characterized in that: The steps include: Step S1: Establishing a database, which includes models of safety pressure bars of various amusement facilities on the market, and the design size and shape of each model of safety pressure bar; Step S2: The safety pressure bar to be tested is placed on the test bench. The tester operates the human-machine interface to control the first bracket to move along the X-axis direction and the second bracket to move along the Y-axis direction through the controller, driving the multi-camera array fusion 3D scanner to move, and scans the safety pressure bar from multiple angles to obtain the initial size and shape of the safety pressure bar; Step S3: The inspector operates the human-machine interface to input the loading tension F, the loading time t for each time, and the number of tests N. Then the controller issues a command to control the extension and retraction of the hydraulic cylinder piston rod. The safety pressure bar is driven to rotate around the hinge point A by the extension of the hydraulic cylinder piston rod. When the safety pressure bar rotates downward by a certain angle, its upper end is hung on the draw hook. If it continues to rotate, a tension force is applied to the safety pressure bar. After reaching the set rotation angle, the loading time t is set continuously, and then the hydraulic cylinder piston rod is controlled to retract. Then, the rear safety pressure bar is driven to rotate in the opposite direction around the hinge point A, and the safety pressure bar is separated from the draw hook, completing a loading test. Step S4: After repeating the loading test N times, the inspector operates the human-machine interface to control the first bracket to move along the X-axis direction and the second bracket to move along the Y-axis direction through the controller, driving the multi-camera array fusion 3D scanner to move, and scan the safety pressure bar from multiple angles to obtain the size and shape of the safety pressure bar after the test; Step S5: The controller compares the size and shape of the safety pressure bar measured twice before and after the loading test, obtains the residual deformation of the full pressure bar after being stressed, and displays the result through the human-machine interface.
7. The method for measuring the residual deformation of the safety pressure bar of an amusement facility after being subjected to force according to claim 6 is characterized in that: Setting different rotation angles corresponds to different loading tensions.