Model structure pressurization testing device

Abstract

The invention discloses a pressurization testing device for a model structure. The pressurization test device comprises a device frame, a downward pressure detection rack and a downward pressing device; the downward pressure detection rack and the downward pressing device are both based on the device frame, and the downward pressure detection rack is located below the downward pressing device; the downward pressure detection rack is used for bearing a test object model structure and detecting downward pressure borne by the test object model structure; and the downward pressing device is used for applying downward pressing force to the test object model structure borne on the downward pressing force detection rack. The pressurization test device is brand new equipment specially designed for detection of the pressure bearing pressure of the model structure, and pressure bearing tests for various model structures can be achieved, so that the equipment requirements of the model structure for bearing races are met.

Description

Technical Field

[0001] The present invention relates to a pressure-bearing test equipment for model structures, and particularly to a pressure application test device for model structures. Background Art

[0002] In architectural model competitions, there is a regular event, namely the model structure load-bearing competition. In this type of competition task, wooden structures, plastic structures, paper structures, etc. are made, and finally the works are subjected to pressure bearing. The results are calculated according to the maximum pressure bearing or the ratio of the maximum value to the self-weight of the structure.

[0003] The current problems are as follows:

[0004] Currently, the detection of the pressure bearing of model structures is realized by using a modified electronic scale. This modified electronic scale has a bulky structure, a large volume, is inconvenient to carry, and uses a fixed load-bearing bracket, resulting in a small number of measurable structure types, and the display screen only shows the real-time load-bearing data, and cannot retain both the real-time value and the maximum load-bearing value at the same time.

[0005] All in all, there is currently no professional device to achieve precise detection of the pressure bearing of model structures to meet the equipment requirements of model structure load-bearing competitions. Summary of the Invention

[0006] The purpose of the present invention is to provide a pressure application test device for model structures. This pressure application test device is a brand-new equipment specially designed for the detection of the pressure bearing of model structures, and can achieve the pressure-bearing test for various model structures, so as to meet the equipment requirements of model structure load-bearing competitions.

[0007] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0008] A pressure application test device for model structures, the pressure application test device includes a device frame, a lower pressure detection bench and a downward pressing device; both the lower pressure detection bench and the downward pressing device are based on the device frame, and the lower pressure detection bench is located below the downward pressing device; the lower pressure detection bench is used to carry the test object model structure and detect the downward pressure received by the test object model structure; the downward pressing device is used to apply a downward pressure to the test object model structure carried on the lower pressure detection bench.

[0009] Further, the downward pressing device includes a downward pressing drive mechanism and a pressing plate. The downward pressing drive mechanism is based on the device frame, and the downward pressing drive mechanism can drive the pressing plate to apply a downward pressure; the lower pressure detection bench includes a bench body and a weighing sensor. The weighing sensor is arranged at the bottom of the bench body, and the lower pressure detection bench is arranged on the device frame based on the weighing sensor.

[0010] Furthermore, the device frame has a bottom plate and a top plate; the downward pressing device is mounted based on the top plate, and the downward pressure detection bench is mounted based on the bottom plate.

[0011] Furthermore, the downward pressing drive mechanism is an electric telescopic cylinder, a hydraulic telescopic cylinder or a pneumatic telescopic cylinder.

[0012] Furthermore, the pressure testing device further includes a main control module. The downward pressure detection bench transmits signals to the main control module, and the downward pressing device is controlled by the main control module. The control functions of the main control module include: real-time monitoring of the downward pressure borne by the test object model structure placed on the downward pressure detection bench through the downward pressure detection bench; controlling the downward pressing device to apply downward pressure to the test object model structure placed on the downward pressure detection bench until the test object model structure collapses.

[0013] Furthermore, the pressure testing device further includes an OLED display screen and a voice broadcast module, and the OLED display screen and the voice broadcast module are controlled by the main control module. The control functions of the main control module further include: recording the maximum downward pressure value when the test object model structure collapses, and making the OLED display screen freeze and display the maximum downward pressure value; controlling the voice broadcast module to broadcast the maximum downward pressure value.

[0014] Furthermore, the main control module is an Arduino UNO main control board.

[0015] Furthermore, the device frame is based on a mobile trolley.

[0016] Furthermore, the mobile trolley has brake wheels.

[0017] The beneficial effects of the pressure testing device of the present invention compared with the prior art are as follows:

[0018] The pressure testing device of the present invention is specially designed for the detection of the bearing pressure of the model structure, thus filling the equipment gap in the prior art, capable of realizing the bearing pressure test for various model structures, and capable of retaining and displaying the real-time value and the maximum value of the bearing pressure of the model structure, so as to meet the equipment requirements of the model structure bearing competition. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 and Figure 2 are schematic structural diagrams of the model structure pressure testing device of the present invention, and the two figures are views from different angles;

[0020] Figure 3 is a schematic diagram of the pressure testing device of the present invention after removing the upper aluminum alloy main board;

[0021] Figure 4Schematic diagram at the load cell in the pressurization test device of the present invention;

[0022] Figure 5 Schematic diagram of the load-bearing bracket;

[0023] Figure 6 Schematic diagram inside the control box. Specific implementation manner

[0024] The present invention will be further described below with specific embodiments:

[0025] Please refer to Figures 1 to 6 , this embodiment provides a multifunctional model structure pressurization test device based on Arduino intelligent hardware, which includes a lower aluminum alloy main board 1. Brake wheels 2 are arranged at the four corners of the bottom end of the lower aluminum alloy main board 1. Second threaded columns 16 are fixedly arranged at the joints of the four brake wheels 2 and the lower aluminum alloy main board 1. The tops of the four second threaded columns 16 pass through the lower aluminum alloy main board 1 and are threadedly provided with chrome steel bars 3. A top aluminum alloy main board 4 is arranged at the top between the four chrome steel bars 3. A control box 6 is fixedly arranged in the middle of the top end of the top aluminum alloy main board 4. An OLED display screen 7 and a voice broadcast module 8 are fixedly installed on the front of the control box 6. A connecting block 15 is fixedly arranged in the middle of the bottom end of the top aluminum alloy main board 4. An electric telescopic cylinder 9 is fixedly installed at the bottom end of the connecting block 15. The movable end of the electric telescopic cylinder 9 is fixedly connected to a pressurizing plate 10. A load cell 11 is arranged in the middle of the top end of the lower aluminum alloy main board 1. A load-bearing plate 12 is arranged at the top of the load cell 11. A load-bearing bracket 13 is fixedly arranged at the top of the load-bearing plate 12. This model structure pressurization test device has a simple structure, is convenient to install and disassemble. The height of the load-bearing frame can be changed by combining and installing chrome steel bars 3 of different sizes, so as to adapt to the tested model structures of different heights. Different arrangement and installation methods of the load-bearing bracket 13 can be used to adapt to the tested model structures of different lengths and widths. It can intelligently broadcast and display the competition results, which is beneficial for testers and referees to accurately understand the current test situation and make the test process more fair. The competition process can be optimized and set through programming, such as setting the competition time, displaying a countdown on the display screen, and giving an intelligent reminder when the competition time is approaching, etc., which is beneficial for optimizing the test and competition process.

[0026] At the connection of the four chrome-plated steel bars 3 and the upper aluminum alloy main board 4, first threaded posts 14 are fixedly arranged. The tops of the four first threaded posts 14 all pass through the upper aluminum alloy main board 4 and are threadedly provided with locking members 5. The load-bearing bracket 13 includes two first aluminum alloy square bars 131. At both ends of the top between the two first aluminum alloy square bars 131, second aluminum alloy square bars 132 are fixedly arranged. Both of the two first aluminum alloy square bars 131 are fixedly connected to the load-bearing plate 12. At the connection of the lower aluminum alloy main board 1 and the weighing sensor 11, a first aluminum alloy gasket 17 is fixedly arranged.

[0027] During use, through the setting of the four locking members 5, it is convenient to fix the upper aluminum alloy main board 4 on the four chrome-plated steel bars 3. Through the cooperative setting of the two first aluminum alloy square bars 131 and the two second aluminum alloy square bars 132, it is convenient to stably support the object. Through the setting of the first aluminum alloy gasket 17, it is convenient for the lower aluminum alloy main board 1 and the weighing sensor 11 to be stably connected.

[0028] At the connection of the weighing sensor 11 and the load-bearing plate 12, a second aluminum alloy gasket 18 is fixedly arranged. The diameters of the four chrome-plated steel bars 3 are all 15 mm, and the lengths of the four chrome-plated steel bars 3 are all 100 mm. On both sides of the inner wall of the control box 6, an information processing module 19 and a lithium battery pack 20 are respectively fixedly installed. At the bottom of the inner side of the control box 6, an Arduino UNO main control board 21 is fixedly installed.

[0029] During use, through the setting of the second aluminum alloy gasket 18, it is convenient for the weighing sensor 11 and the load-bearing plate 12 to be stably connected. The lithium battery pack 20 supplies power to the whole device.

[0030] When the pressure test device of this embodiment is in use:

[0031] The Arduino UNO main control board 21 controls the electric telescopic cylinder 9 to drive the pressure plate 10 to move downward, thereby applying pressure to the load-bearing model. The pressure will be transmitted to the load-bearing bracket 13, the load-bearing plate 12 and the weighing sensor 11 in sequence. At the same time, the information processing module 19 converts the weighing data of the weighing sensor 11 into a 0-5V de PWM signal and transmits it to the Arduino UNO main control board 21. Its built-in program will convert the PWM signal into kilograms, and display all the numerical changes during the load-bearing process and the maximum value of the model's load-bearing (after the model is crushed, the bearing pressure value will decrease) on the OLED display screen 7 and announce the final maximum bearing pressure value through the voice broadcast module 8.

[0032] Among them, the model structure pressure test device has a simple structure, is convenient to install and disassemble, and can be installed by combining chrome steel bars 3 of different sizes, thereby changing the height of the load-bearing frame to adapt to the tested model structures of different heights. It can be installed in different arrangements of the load-bearing brackets 13 to adapt to the tested model structures of different lengths and widths. It can intelligently broadcast and display the competition results, which is conducive to testers and referees accurately understanding the current test situation and making the test process more fair. It can optimize and set the competition process through programming, such as setting the competition time, displaying the countdown on the display screen, and giving intelligent prompts when the competition time is approaching, etc., which is conducive to optimizing the test and competition process.

[0033] In summary, for the model structure pressure test device of this embodiment, the following can be summarized:

[0034] The pressure test device of this embodiment is constructed based on a mobile trolley. Four rollers with braking mechanisms, namely the braking wheels 2 mentioned above, are provided at the lower part of the mobile trolley.

[0035] Two layers of plate members are fixedly arranged on the mobile trolley, namely the lower aluminum alloy main board 1 and the upper aluminum alloy main board 4 mentioned above. For the convenience of description, the lower layer of plate member is defined as the "bottom plate", namely the lower aluminum alloy main board 1 mentioned above, and the upper layer of plate member is defined as the "top plate", namely the upper aluminum alloy main board 4 mentioned above.

[0036] The structure combination of the "bottom plate", "top plate" and four chrome steel bars 3 can be regarded as the device framework. This device framework is arranged on the mobile trolley. In this way, the entire pressure test device can be conveniently moved based on the mobile trolley. Other equipment structure devices in the pressure test device are all installed based on the device framework.

[0037] A lower pressure detection bench is arranged on the bottom plate. This lower pressure detection bench is composed of the weighing sensor 11, the load-bearing plate 12 and the load-bearing bracket 13 mentioned above. The load-bearing plate 12 and the load-bearing bracket 13 are combined to form the bench body, and the weighing sensor 11 is fixedly arranged at the bottom of the bench body, thus forming the overall structure of the lower pressure detection bench.

[0038] When the entire lower pressure detection bench is placed on the bottom plate, only the weighing sensor 11 is in contact with the bottom plate, and the entire lower pressure detection bench is placed on the bottom plate based on the weighing sensor 11.

[0039] The function of the downward pressure detection bench is as follows: Place the test object model structure on the downward pressure detection bench, and then control the downward pressure device (see details later) to perform a downward pressure action on the test object model structure on the downward pressure detection bench. When the test object model structure is subjected to a downward pressure, the weighing sensor 11 can detect the downward pressure received by the test object model structure. Thus, the downward pressure received by the test object model structure can be observed in real time.

[0040] Generally speaking, the downward pressure detection bench is used to carry the test object model structure and detect the downward pressure received by the test object model structure.

[0041] It should be noted that the weighing sensor 11 is connected to the main control module (see details later) through a dedicated signal line. In this way, the main control module can obtain the detection signal of the weighing sensor 11. That is to say, the weighing sensor 11 transmits the signal to the main control module. The weighing sensor 11 can detect the downward pressure received by the test object model structure and transmit the detected data to the main control module.

[0042] It should be noted that the structural configuration of the downward pressure detection bench is specifically designed for various possible configurations of the test object model structure, so as to be able to adapt to test object model structures of various configurations. Specifically, for example, the load-bearing test of a wooden structure bridge, the load-bearing test of a paper structure model, the load-bearing test of a house structure model, the weighing of ordinary objects, and so on.

[0043] A downward pressure device is provided on the top plate, and the downward pressure device is installed based on the top plate. The downward pressure device has a pressing plate 10 facing downward, and a downward pressure driving mechanism is configured for the pressing plate 10. The downward pressure driving mechanism can drive the pressing plate 10 to move downward based on the top plate and apply a downward pressure to the object placed on the downward pressure detection bench below.

[0044] In this embodiment, the downward pressure driving mechanism is the electric telescopic cylinder 9 mentioned before. The body of the electric telescopic cylinder 9 is installed on the top plate, the telescopic head of the electric telescopic cylinder 9 faces downward, the pressing plate 10 is installed on the telescopic head of the electric telescopic cylinder 9, the pressing plate 10 is directly above the downward pressure detection bench and faces the downward pressure detection bench, and the electric telescopic cylinder 9 can drive the pressing plate 10 to press downward on the downward pressure detection bench below.

[0045] It should be noted that in other embodiments, other forms of driving mechanisms can also be used as the downward pressure driving mechanism to drive the downward pressure action of the pressing plate 10. For example, a hydraulic telescopic cylinder, a pneumatic telescopic cylinder, and so on, as long as it can drive the pressing plate 10 to perform a downward pressure action.

[0046] It should be noted that the downward pressing device (downward driving mechanism) is controlled by the main control module (see details later). In this way, the main control module can control the downward pressing device to perform downward pressing actions (the electric telescopic cylinder 9 extends) and upward actions (the electric telescopic cylinder 9 retracts).

[0047] In addition, for the pressurization test device, a main control module is also provided. This main control module is used to control the start and stop operation of the entire pressurization test device.

[0048] Specifically, a control box 6 is provided on the top plate. An information processing module 19 and an Arduino UNO main control board 21 are provided in the control box 6. The information processing module 19 is used to convert the weighing data of the weighing sensor 11 into a 0 - 5V de PWM signal and transmit it to the Arduino UNO main control board 21. That is to say, the weighing sensor 11 transmits signals to the Arduino UNO main control board 21 through the information processing module 19, and the Arduino UNO main control board 21 obtains the detection data of the weighing sensor 11 through the information processing module 19.

[0049] The downward pressing device (downward driving mechanism) is controlled by the Arduino UNO main control board 21. In this way, the Arduino UNO main control board 21 can control the operation of the entire pressurization test device.

[0050] The Arduino UNO main control board 21 essentially plays the role of the main control module, that is, controlling the start and stop operation of the entire pressurization test device.

[0051] An OLED display screen 7 and a voice broadcast module 8 are also provided on the control box 6. Both are controlled by the Arduino UNO main control board 21 acting as the main control module. The function of the OLED display screen 7 is to display: the detection data of the weighing sensor 11, the countdown, and other relevant information. The function of the voice broadcast module 8 is to perform voice broadcast on the display information on the OLED display screen 7.

[0052] A lithium battery pack 20 is also configured in the control box 6 to supply power to the entire control box 6.

[0053] The specific usage method and working process of the pressurization test device in this embodiment are as follows:

[0054] 1) Place the test object model structure on the downward pressure detection bench. The downward pressure detection bench bears the test object model structure. From this point on, the main control module monitors the downward pressure borne by the test object model structure in real time through the weighing sensor 11 at the lower part of the downward pressure detection bench;

[0055] 2) The main control module controls the pressing device to perform a pressing action. The pressing plate 10 of the pressing device presses downward against the test object model structure and applies a downward pressure to it until the test object model structure collapses due to being unable to withstand the downward pressure.

[0056] 3) During the process of the pressing device applying a downward pressure to the test object model structure, the main control module continuously and real-time monitors the downward pressure borne by the test object model structure, and displays the real-time value of the downward pressure through the OLED display screen 7 until the test object model structure collapses.

[0057] 4) When the test object model structure collapses, the main control module records the maximum downward pressure borne by the test object model structure, freezes the downward pressure value displayed on the OLED display screen 7 at the maximum downward pressure value, and then controls the voice broadcast module 8 to broadcast the maximum downward pressure value.

[0058] 5) The main control module controls the pressing device to perform an upward pressure relief action.

[0059] In this embodiment, the entire pressurized test device operates under the control of the main control module. The specific control functions are summarized as follows:

[0060] 1) Real-time monitor the downward pressure borne by the test object model structure placed on the downward pressure detection bench through the load cell 11 at the lower part of the downward pressure detection bench.

[0061] 2) Control the pressing device to apply a downward pressure to the test object model structure placed on the downward pressure detection bench until the test object model structure collapses.

[0062] 3) Record the maximum downward pressure value borne when the test object model structure collapses, and freeze the OLED display screen 7 to display the maximum downward pressure value.

[0063] 4) Control the voice broadcast module 8 to broadcast the maximum downward pressure value.

[0064] 5) Control the pressing device to perform an upward pressure relief action.

[0065] The pressurized test device of this embodiment is a metering device specifically designed for the detection of the bearing pressure of the model structure, thus filling the equipment gap in the existing technology. It can realize the bearing test for various model structures, and can retain and display the real-time value and maximum value of the bearing pressure of the model structure, so as to meet the equipment requirements of the model structure bearing competition.

[0066] In addition, the pressurized test device of this embodiment also has the advantages of being light in structure and convenient to move.

[0067] The pressurized test device of this embodiment also has some other advantages:

[0068] The pressure test device of this embodiment has a simple structure, is convenient for installation and disassembly, can be installed by combining chrome-plated steel bars of different sizes, thereby changing the height of the load-bearing frame, so as to adapt to the test model structures of different heights, and can be installed in different arrangements of the load-bearing brackets, thereby adapting to the test model structures of different lengths and widths. It can intelligently broadcast and display the competition results, which is beneficial for testers and referees to accurately understand the current test situation and make the test process more fair. The competition process can be optimized and set through programming.

[0069] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A model structure pressure test device, characterized in that: The pressure test device includes a device frame, a downward pressure detection bench and a downward pressing device; Both the downward pressure detection bench and the downward pressing device are based on the device frame, and the downward pressure detection bench is located below the downward pressing device; The downward pressure detection bench is used to carry the test object model structure and detect the downward pressure received by the test object model structure; The downward pressing device is used to apply a downward pressure to the test object model structure carried on the downward pressure detection bench.

2. The model structure pressure test device according to claim 1, wherein: The downward pressing device includes a downward pressing drive mechanism and a pressing plate (10). The downward pressing drive mechanism is based on the device frame, and the downward pressing drive mechanism can drive the pressing plate (10) to apply a downward pressure; The downward pressure detection bench includes a bench body and a weighing sensor (11). The weighing sensor (11) is arranged at the bottom of the bench body, and the downward pressure detection bench is installed on the device frame based on the weighing sensor (11).

3. The model structure pressure test device according to claim 1, characterized in that: The device frame has a bottom plate and a top plate; The downward pressing device is installed based on the top plate, and the downward pressure detection bench is installed based on the bottom plate.

4. The model structure pressure test device according to claim 2, wherein: The downward pressing drive mechanism is an electric telescopic cylinder (9), a hydraulic telescopic cylinder or a pneumatic telescopic cylinder.

5. The model structure pressure test device according to claim 1, wherein: The pressure test device further includes a main control module. The downward pressure detection bench transmits signals to the main control module, and the downward pressing device is controlled by the main control module; The control functions of the main control module include: Real-time monitoring of the downward pressure borne by the test object model structure placed on the downward pressure detection bench through the downward pressure detection bench; Controlling the downward pressing device to apply a downward pressure to the test object model structure placed on the downward pressure detection bench until the test object model structure collapses.

6. The model structure pressure test device according to claim 5, characterized in that: The pressure test device further includes an OLED display screen (7) and a voice broadcast module (8). The OLED display screen (7) and the voice broadcast module (8) are controlled by the main control module; The control functions of the main control module further include: Recording the maximum downward pressure value borne when the test object model structure collapses and causing the OLED display screen (7) to freeze and display the maximum downward pressure value; Controlling the voice broadcast module (8) to broadcast the maximum downward pressure value.

7. The model structure pressure test device according to claim 5 or 6, characterized in that: The main control module is an Arduino UNO main control board (21).

8. The model structure pressure test device according to claim 1, characterized in that: The device frame is based on a mobile trolley.

9. The model structure pressure test device according to claim 8, characterized in that: The mobile trolley has brake wheels (2).

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