A scaffold collapse simulation demonstration device

Abstract

This utility model belongs to the field of construction safety technology, and specifically relates to a scaffolding collapse simulation demonstration device. It includes a support base, a support movement component, a support leveling component, an inner cylinder, an outer cylinder, a lifting and adjusting component, a drive component, a linear motor, two mounting seats, two robotic arms, and a placement platform. The support movement component is located at the bottom of the support base, the support leveling component is located at the four corners of the support base, and the inner cylinder is fixedly installed at the top center of the support base. This utility model is rationally designed and can effectively simulate the scaffolding collapse process, providing an intuitive and realistic demonstration scenario for construction safety teaching and research. It also allows for flexible repositioning of the device, facilitating demonstrations in different locations and ensuring stability on uneven ground, thus improving simulation accuracy. Furthermore, it enables automatic erection, greatly improving efficiency while reducing operational complexity.

Description

Technical Field

[0001] This utility model relates to the field of construction safety technology, and in particular to a scaffolding collapse simulation demonstration device. Background Technology

[0002] In the construction industry, the erection and use of scaffolding is crucial, but scaffolding collapses are also frequent, causing serious casualties and property damage. Currently, the analysis of the causes of scaffolding collapses and research on preventive measures are mostly at the theoretical level, lacking intuitive and effective demonstration methods. In order to enable construction workers to deeply understand the process and influencing factors of scaffolding collapses, scaffolding collapse simulations are often carried out by building scaled-down scaffolding models. Usually, the model scaffolding is erected manually first, and then the collapse is simulated. This operation is relatively cumbersome and inefficient.

[0003] Therefore, this utility model proposes a scaffolding collapse simulation demonstration device to solve the above problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings mentioned in the background section by proposing a scaffolding collapse simulation demonstration device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a scaffolding collapse simulation demonstration device, comprising a support base, a support moving component, a support leveling component, an inner cylinder, an outer cylinder, a lifting adjustment component, a drive component, a linear motor, two mounting bases, two robotic arms, and a placement platform;

[0007] The supporting moving component is located at the bottom of the support base, the supporting leveling component is located at the four corners of the support base, the inner cylinder is fixedly installed at the top center of the support base, the placement platform is located at the top center of the support base and inside the inner cylinder, the outer cylinder is slidably sleeved on the outside of the inner cylinder, the lifting and adjusting component is located on the outer cylinder and connected to the support base, the driving component is located inside the support base and connected to the lifting and adjusting component, the linear motor is fixedly installed on the inner side wall of the outer cylinder and is arranged in an arc shape, both mounting seats are located on the linear motor, both robotic arms are fixedly installed on the corresponding mounting seats, and the top of the outer cylinder has a circular opening for material inlet and outlet.

[0008] Preferably, the supporting movable component includes four casters, with casters fixedly installed at the four bottom corners of the support base, and each of the four casters is equipped with a brake pad.

[0009] Preferably, the support leveling assembly includes four electric cylinders, four omnidirectional balls, and four pads. Electric cylinders are fixedly installed at the four corners of the support base. The bottom ends of the four electric cylinders extend to the bottom of the support base and are respectively fixedly installed with omnidirectional balls. Pads are movably installed on the four omnidirectional balls.

[0010] Preferably, the lifting adjustment assembly includes two internal threaded sleeves and two lead screws. Two internal threaded sleeves are fixedly installed on the outer side of the outer cylinder, and lead screws are threadedly installed inside both internal threaded sleeves. Both lead screws are rotatably installed on the top inner wall of the support base.

[0011] Preferably, the drive assembly includes a dual-axis motor, two rotating shafts and four bevel gears. The dual-axis motor is fixedly installed on the bottom inner wall of the support base. Rotating shafts are axially fixedly installed on the two output shafts of the dual-axis motor. Bevel gears are fixedly sleeved on the ends of the two rotating shafts that are far apart from each other and the bottom ends of the two lead screws. The two bevel gears located on the same side mesh with each other.

[0012] Preferably, the two lead screws are configured with the same thread pitch and opposite thread orientation, and the thread orientation of the two internal thread sleeves is consistent with that of the corresponding lead screw.

[0013] Preferably, two strip plates are fixedly installed inside the support base, and two rotating shafts are rotatably connected to the corresponding strip plates.

[0014] Preferably, both the inner and outer cylinders are made of transparent acrylic material.

[0015] Preferably, two symmetrically arranged support blocks are fixedly installed on the top and bottom outer sides of the outer cylinder, and two inner thread sleeves are fixedly installed on the corresponding two support blocks.

[0016] Preferably, a placement frame for simulating the loading and unloading of steel pipes used in scaffolding erection is fixedly installed on the top of the outer cylinder.

[0017] The beneficial effects of this utility model are:

[0018] This device, with its movable support components, allows for easy movement and temporary fixation, making demonstration location selection more flexible. The leveling support components ensure stable support and leveling under various ground conditions, guaranteeing demonstration accuracy. Furthermore, the lifting and adjustment components, working in conjunction with the drive components, easily adjust the space enclosed by the inner and outer cylinders, as well as the height of the linear motor and robotic arm, meeting the needs of scaffolding collapse simulations at different heights. The transparent acrylic material used for the cylinders facilitates observation of the demonstration process. Additionally, the placement frame, circular opening, and robotic arm work together to automatically erect simulated scaffolding, significantly improving demonstration efficiency and convenience, providing an efficient and practical simulation tool for related teaching and research. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of a scaffolding collapse simulation demonstration device proposed in this utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0022] Figure 3 for Figure 2 The main view;

[0023] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the placement rack part proposed in this utility model.

[0025] In the diagram: 1. Support base; 11. Casters; 12. Electric cylinder; 121. Ball bearing; 122. Pad; 2. Inner cylinder; 3. Outer cylinder; 31. Inner threaded sleeve; 311. Support block; 32. Lead screw; 33. Dual-axis motor; 34. Rotating shaft; 341. Strip plate; 35. Bevel gear; 4. Placement platform; 5. Mounting base; 51. Linear motor; 6. Robotic arm; 7. Placement rack. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Reference Figure 1-5 A scaffolding collapse simulation demonstration device includes a support base 1, an inner cylinder 2, an outer cylinder 3, a linear motor 51, two mounting bases 5, two robotic arms 6, and a placement platform 4.

[0028] All four corners of the bottom of the support base 1 are fixedly installed with casters 11, and each of the four casters 11 is equipped with a brake pad, which can provide effective support for the device and facilitate the movement and temporary fixation of the device.

[0029] Electric cylinders 12 are fixedly installed at the four corners of the support base 1. The bottom ends of the four electric cylinders 12 extend to the bottom of the support base 1 and are fixedly installed with universal balls 121 respectively. Pads 122 are movably installed on the four universal balls 121, which can provide stable support for the device, facilitate the height adjustment of the device, and allow the support base 1 to be adjusted to a horizontal state when the device is in use.

[0030] The inner cylinder 2 is fixedly installed at the top center of the support base 1. The placement platform 4 is set at the top center of the support base 1 and located inside the inner cylinder 2 to provide a stable platform when simulating scaffolding erection. The outer cylinder 3 is slidably installed on the outside of the inner cylinder 2.

[0031] Two internal threaded sleeves 31 are fixedly installed on the outer side of the outer cylinder 3. Each of the two internal threaded sleeves 31 has a screw 32 threaded inside. Both screws 32 are rotatably installed on the top inner wall of the support base 1. When the two screws 32 rotate synchronously, the outer cylinder 3 can be adjusted to rise and fall along the outer side of the inner cylinder 2. This not only adjusts the space enclosed by the inner cylinder 2 and the outer cylinder 3, but also adjusts the height of the linear motor 51 and the robotic arm 6. This allows it to adapt well to the simulation of scaffolding at different heights. In order to ensure that the two internal threaded sleeves 31 can be raised and lowered synchronously when the dual-axis motor 33 controls the two screws 32 to rotate synchronously in opposite directions through the rotating shaft 34 and the bevel gear 35, the thread spacing of the two screws 32 is the same and the thread orientation is opposite. The thread orientation of the two internal threaded sleeves 31 is consistent with the corresponding screw 32.

[0032] A dual-axis motor 33 is fixedly installed on the bottom inner wall of the support base 1. A rotating shaft 34 is axially fixedly installed on each of the two output shafts of the dual-axis motor 33. A bevel gear 35 is fixedly sleeved on the ends of the two rotating shafts 34 that are far apart from each other and the bottom ends of the two lead screws 32. The two bevel gears 35 located on the same side mesh with each other and can provide driving force to the two lead screws 32 synchronously.

[0033] A linear motor 51 is fixedly installed on the inner wall of the outer cylinder 3 and is arranged in an arc shape. Two mounting seats 5 are both set on the linear motor 51, and two robotic arms 6 are fixedly installed on the corresponding mounting seats 5. A circular opening for material entry and exit is provided on the top of the outer cylinder 3. In order to facilitate the robotic arm 6 to pick up and put down steel pipes from the placement rack 7 with the cooperation of the circular opening, so as to achieve the effect of automatically erecting the required simulated scaffolding, a placement rack 7 for simulating the loading and unloading of steel pipes used in scaffolding erection is fixedly installed on the top of the outer cylinder 3.

[0034] In this embodiment, in order to provide stable support for the rotating shaft 34, two strip plates 341 are fixedly installed inside the support base 1, and the two rotating shafts 34 are rotatably connected to the corresponding strip plates 341 respectively.

[0035] In this embodiment, in order to facilitate the observation of the scaffolding collapse simulation by relevant personnel, both the inner cylinder 2 and the outer cylinder 3 are made of transparent acrylic material.

[0036] In this embodiment, in order to ensure the stability of the inner thread sleeve 31, two symmetrically arranged support blocks 311 are fixedly installed on the top outer side and the bottom outer side of the outer cylinder 3, and the two inner thread sleeves 31 are respectively fixedly installed on the corresponding two support blocks 311.

[0037] Among them, robotic arm 6 is a six-axis collaborative robotic arm, model UR10e, which can be well adapted to the erection of multi-layer simulated scaffolding.

[0038] In addition, the top of the placement frame 7 is equipped with a removable top cover, which can be opened when it is necessary to simulate the load on the erected scaffolding, and then it can be operated.

[0039] The circuits, electronic components, and module mechanisms involved all employ existing technologies, which can be fully implemented by those skilled in the art, and need no further explanation. The content protected by this application does not involve any improvement to the software, circuits, or methods.

[0040] Working principle: When in use, first move the device to a suitable demonstration location, temporarily fix it with the brake pads on the caster wheel 11, and then adjust the height of the device by using the electric cylinder 12, the ball joint 121 and the pad 122, so that the support base 1 is in a horizontal state.

[0041] Then, the power is turned on and the dual-axis motor 33 is started according to the simulation requirements. It drives the two lead screws 32 to rotate synchronously in opposite directions through the rotating shaft 34 and bevel gear 35, thereby controlling the lifting and lowering of the inner threaded sleeve 31 and the outer cylinder 3. After adjusting the height of the linear motor 51 and the robotic arm 6, the linear motor 51 drives the mounting base 5 to adjust its position, and the robotic arm 6 grabs the steel pipe from the placement frame 7. Through the circular opening at the top of the outer cylinder 3, the simulated scaffolding is automatically erected on the placement platform 4. After the erection is completed, the collapse of the scaffolding can be simulated and displayed according to actual needs. Relevant personnel can observe the scaffolding collapse simulation process through the transparent inner cylinder 2 and outer cylinder 3.

[0042] To achieve efficient simulation of scaffold collapse, this device is equipped with a main controller module in its control system. This module includes a PLC programmable logic controller (PLC) for coordinating the sequence and timing of actions of various components. The main controller is connected to level sensors, position sensors, limit switches, and other detection elements via input signal acquisition ports, enabling real-time acquisition of the horizontal status of the support base 1, the lifting position of the outer cylinder 3, and the working status of the robotic arm 6. For example, during leveling, four electric cylinders 12, in conjunction with pressure sensors, feed back ground height difference information to the main controller, which calculates the extension or retraction length of each cylinder 12, thereby driving the cylinders 12 to maintain a horizontal position and ensure demonstration accuracy.

[0043] During the erection of the scaffolding model, the linear motor 51 runs along its arc-shaped track, driving the mounting base 5 to move in the circumferential direction. Two robotic arms 6 can grab steel pipes from different positions on the placement frame 7 according to a preset program and precisely place them on the placement platform 4. The robotic arms 6 are six-degree-of-freedom collaborative robotic arms UR10e, possessing high-precision repeatability (±0.1mm). Multiple erection path points can be set via a teaching pendant or remote control terminal to achieve the erection of scaffolding of different structural forms, such as double-row scaffolding and cantilever scaffolding. The linear motor 51 has a stroke of 0°~180° and a maximum operating speed of 0.5m / s, meeting various erection angle requirements.

[0044] When the lifting and adjusting assembly is working, the dual-axis motor 33 starts and drives the two rotating shafts 34 to rotate synchronously. The bevel gear 35 transmission system transmits power to the lead screw 32. Since the thread directions of the two lead screws 32 are opposite and the thread direction of the inner thread sleeve 31 matches it, the outer cylinder 3 can rise or fall smoothly when the dual-axis motor 33 rotates in both directions.

[0045] Furthermore, considering the different load conditions required for scaffold collapse simulation, the top of the placement platform 4 is equipped with multiple standard holes for fixing different types of scaffold bases or loading counterweights. The placement platform 4 is made of aluminum alloy with an anti-slip textured surface, measuring 600mm × 600mm, and has a 300mm diameter observation hole in the center for easy observation of the stress and deformation during the collapse process from the bottom. Both the inner cylinder 2 and the outer cylinder 3 are made of 4mm thick transparent acrylic sheets processed by laser cutting and hot bending, possessing good light transmittance (≥92%) and impact resistance (bending strength ≥80MPa), clearly displaying the entire process of scaffold erection and collapse within the simulated structure.

[0046] To improve demonstration efficiency, the device is also equipped with a remote operation interface. Operators can select preset demonstration modes via a touchscreen, such as "single-layer scaffolding collapse," "multi-layer cascading collapse," and "eccentric load collapse." The system will automatically complete the steps of scaffolding erection, loading, and release, and record the entire process via a camera for subsequent analysis. The camera is mounted on the top bracket of support base 1, supports high-definition recording, and is equipped with LED supplementary lighting to ensure clear images under various lighting conditions.

[0047] The combined effect of the aforementioned control and structural design enables this invention to not only solve the problems of cumbersome manual operation, poor demonstration effect, and inability to repeat verification in traditional scaffold collapse simulation, but also to achieve functions such as automated erection, controllable multiple parameters, and process visualization, greatly enhancing the practical application value of teaching and training.

[0048] The foregoing has provided a detailed description of the scaffolding collapse simulation demonstration device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A scaffolding collapse simulation demonstration device, characterized in that, It includes a support base (1), a support movement assembly, a support leveling assembly, an inner cylinder (2), an outer cylinder (3), a lifting adjustment assembly, a drive assembly, a linear motor (51), two mounting bases (5), two robotic arms (6), and a placement platform (4); The supporting moving component is located at the bottom of the support base (1), the supporting leveling component is located at the four corners of the support base (1), the inner cylinder (2) is fixedly installed at the top center of the support base (1), the placement platform (4) is located at the top center of the support base (1) and inside the inner cylinder (2), the outer cylinder (3) is slidably installed on the outside of the inner cylinder (2), the lifting adjustment component is located on the outer cylinder (3) and connected to the support base (1), the driving component is located inside the support base (1) and connected to the lifting adjustment component, the linear motor (51) is fixedly installed on the inner side wall of the outer cylinder (3) and is arranged in an arc shape, the two mounting seats (5) are both located on the linear motor (51), the two robotic arms (6) are both fixedly installed on the corresponding mounting seats (5), and the top of the outer cylinder (3) is provided with a circular opening for material entry and exit.

2. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: The support and movement assembly includes four casters (11). The casters (11) are fixedly installed at the four corners of the bottom of the support base (1), and each of the four casters (11) is equipped with a brake pad.

3. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: The support and leveling assembly includes four electric cylinders (12), four universal balls (121), and four pads (122). Electric cylinders (12) are fixedly installed at the four corners of the support base (1). The bottom ends of the four electric cylinders (12) extend to the bottom of the support base (1) and are respectively fixedly installed with universal balls (121). Pads (122) are movably installed on the four universal balls (121).

4. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: The lifting adjustment assembly includes two inner threaded sleeves (31) and two lead screws (32). Two inner threaded sleeves (31) are fixedly installed on the outer side of the outer cylinder (3). Lead screws (32) are threadedly installed in both inner threaded sleeves (31). Both lead screws (32) are rotatably installed on the top inner wall of the support base (1).

5. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: The drive assembly includes a dual-axis motor (33), two rotating shafts (34) and four bevel gears (35). The dual-axis motor (33) is fixedly installed on the bottom inner wall of the support base (1). The rotating shafts (34) are axially fixedly installed on the two output shafts of the dual-axis motor (33). The bevel gears (35) are fixedly sleeved on the ends of the two rotating shafts (34) that are far apart from each other and the bottom ends of the two lead screws (32). The two bevel gears (35) located on the same side mesh with each other.

6. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: The two lead screws (32) are set with the same thread pitch and opposite thread orientation, and the thread orientation of the two inner thread sleeves (31) is consistent with that of the corresponding lead screw (32).

7. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: Two strip plates (341) are fixedly installed inside the support base (1), and two rotating shafts (34) are rotatably connected to the corresponding strip plates (341).

8. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: Both the inner cylinder (2) and the outer cylinder (3) are made of transparent acrylic material.

9. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: Two symmetrically arranged support blocks (311) are fixedly installed on the top and bottom sides of the outer cylinder (3), and two inner thread sleeves (31) are fixedly installed on the corresponding two support blocks (311).

10. The scaffolding collapse simulation demonstration device according to claim 1, characterized in that: The top of the outer cylinder (3) is fixedly installed with a placement frame (7) for simulating the loading and unloading of steel pipes used in scaffolding erection.

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