A vacuum combined surcharge preloading experimental device with alarm function

Abstract

This utility model discloses a vacuum combined load preloading experimental device with alarm function. The device includes: an experimental chamber containing a vacuum sensor and a load pressure sensor, with an alarm light and a voice alarm fixedly installed externally; a pressurizing mechanism installed on the outer side of the experimental chamber; a load mechanism installed on the top of the experimental chamber; and a controller with a display panel installed on the outer surface of the experimental chamber, which is connected to the vacuum sensor, the load pressure sensor, the alarm light, and the voice alarm. This utility model effectively solves the problem that existing vacuum combined load preloading experimental devices lack real-time monitoring and alarm functions, and cannot promptly detect abnormal situations that may occur during the experiment, such as insufficient vacuum and excessive load pressure.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, specifically to a vacuum combined surcharge preloading test device with alarm function. Background Technology

[0002] When carrying out civil engineering construction, a vacuum combined surcharge preloading test device is required. This device is used in foundation treatment experiments. It is mainly used to simulate and study the application effect of the vacuum combined surcharge preloading method in foundation treatment. The vacuum combined surcharge preloading method is a common foundation reinforcement technology. By applying vacuum pressure and surcharge pressure in the foundation, the consolidation process of the soil is accelerated, thereby improving the bearing capacity and stability of the foundation.

[0003] However, the existing vacuum combined load preloading experimental device lacks real-time monitoring and alarm functions, and cannot detect abnormal situations that may occur during the experiment in a timely manner, such as insufficient vacuum and excessive load pressure.

[0004] Therefore, there is an urgent need to design a vacuum combined load preloading experimental device with alarm function to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum combined load preloading test device with an alarm function, which effectively solves the problem that existing vacuum combined load preloading test devices lack real-time monitoring and alarm functions, and cannot detect abnormal situations that may occur during the experiment in a timely manner, such as insufficient vacuum and excessive load pressure.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a vacuum combined load preloading test device with alarm function, the device comprising: an test box, which is provided with a vacuum sensor and a load pressure sensor inside, and an alarm light and a voice alarm fixedly installed on its exterior;

[0007] A pressurization mechanism installed on the outer side of the experimental chamber;

[0008] A stacking mechanism mounted on top of the experimental chamber; and

[0009] A controller with a display panel is installed on the outer surface of the experimental chamber and is connected to the vacuum sensor, the load pressure sensor, the alarm light, and the voice alarm.

[0010] Preferably, the pressurization mechanism includes: a mounting bracket fixedly connected to the outer side of the experimental chamber;

[0011] A vacuum pump fixedly mounted within the mounting bracket and connected to the controller; and

[0012] One end of the transmission pipe is fixedly connected to the output end of the vacuum pump, and the other end extends into the interior of the experimental chamber.

[0013] Preferably, the pressurizing mechanism further includes a control valve disposed within the transmission pipe and connected to the controller.

[0014] Preferably, the stacking mechanism includes: a sealing cover plate disposed on the top of the experimental chamber and adapted to the experimental chamber, wherein the top surface of the experimental chamber and the sealing cover plate are provided with a plurality of corresponding threaded holes;

[0015] Several threaded rods that are threadedly connected to the threaded holes;

[0016] Several operating blocks are fixedly connected to the top of the threaded rod;

[0017] Several elastic elements fitted onto the threaded rod, one end of which is fixedly connected to the bottom surface of the operating block; and

[0018] A stacking component fixedly installed at the bottom of the sealing cover plate.

[0019] Preferably, the stacking mechanism further includes a sealing ring surrounding the bottom surface of the sealing cover plate.

[0020] This invention provides a vacuum combined loading pre-compression experimental device with alarm function. Through the built-in vacuum sensor and loading pressure sensor, the vacuum degree and loading pressure in the experimental chamber can be monitored in real time. When the values ​​exceed the preset safety range, the alarm light and voice alarm are immediately triggered to promptly remind the operator to handle the abnormality, such as insufficient vacuum degree or excessive loading pressure, to avoid experimental data distortion or equipment damage. The pressurization mechanism can accurately adjust the vacuum degree in the experimental chamber, and the loading mechanism can stably apply controllable loading pressure. Combined with sensor feedback, the experimental conditions can be precisely controlled, solving the problem of lacking real-time monitoring and alarm functions, and failing to detect abnormalities that may occur during the experiment in time, such as insufficient vacuum degree and excessive loading pressure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a vacuum combined load preloading experimental device with alarm function according to this utility model;

[0022] Figure 2 This is a cross-sectional view of a vacuum combined loading preloading experimental device with alarm function according to this utility model;

[0023] Figure 3 This is a partial cross-sectional view of a vacuum combined loading preloading experimental device with alarm function according to this utility model;

[0024] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Experimental chamber; 2. Vacuum sensor; 3. Load pressure sensor; 4. Alarm light; 5. Voice alarm; 6. Pressurization mechanism; 61. Mounting bracket; 62. Vacuum pump; 63. Transmission pipe; 64. Control valve; 7. Loading mechanism; 71. Sealing cover plate; 72. Threaded hole; 73. Threaded rod; 74. Operating block; 75. Elastic element; 76. Loading component; 77. Sealing ring; 8. Controller. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a vacuum combined loading preloading experimental device with alarm function, comprising:

[0028] An experimental chamber 1 is equipped with a vacuum sensor 2 and a load pressure sensor 3 inside, and an alarm light 4 and a voice alarm 5 are fixedly installed on its exterior.

[0029] A pressurizing mechanism 6 is installed on the outer side of the experimental chamber 1. In this embodiment, the pressurizing mechanism 6 includes: a mounting frame 61 fixedly connected to the outer side of the experimental chamber 1; a vacuum pump 62 fixedly installed in the mounting frame 61; a transmission pipe 63 with one end fixedly connected to the output end of the vacuum pump 62 and the other end extending into the interior of the experimental chamber 1; and a control valve 64 disposed in the transmission pipe 63. The mounting frame 61 fixedly supports the vacuum pump 62 to ensure its stable operation. The vacuum pump 62 reduces the air pressure in the experimental chamber 1 by pumping air to simulate vacuum pre-compression conditions, accelerate soil consolidation, or test the effect of vacuum pressure on the soil. The transmission pipe 63 transmits the negative pressure generated by the vacuum pump 62 to the interior of the experimental chamber 1 to achieve air pressure control. The control valve 64 adjusts the gas flow rate in the transmission pipe 63 to precisely control the vacuum degree in the experimental chamber 1 and avoid excessive pressure fluctuations.

[0030] A stacking mechanism 7 is installed on top of the experimental chamber 1. In this embodiment, the stacking mechanism 7 includes: a sealing cover plate 71 provided on the top of the experimental chamber 1 and adapted to the experimental chamber 1, with a plurality of corresponding threaded holes 72 on the top surface of the experimental chamber 1 and the sealing cover plate 71; a plurality of threaded rods 73 threadedly connected to the threaded holes 72; a plurality of operating blocks 74 fixedly connected to the top of the threaded rods 73; a plurality of elastic elements 75 sleeved on the threaded rods 73, one end of which is fixedly connected to the bottom surface of the operating blocks 74; a stacking component 76 fixedly installed at the bottom of the sealing cover plate 71; and a sealing ring 77 surrounding the bottom surface of the sealing cover plate 71. The sealing ring 77 can increase the sealing between the experimental chamber 1 and the sealing cover plate 71, thereby making the experimental chamber 1 completely sealed. The threaded holes 72 can facilitate the installation of the sealing cover plate 71 by the staff through the threaded rods 73 and the elastic elements 75.

[0031] A controller 8 with a display panel is installed on the outer surface of the experimental chamber 1. It is connected to the vacuum sensor 2, the load pressure sensor 3, the alarm light 4, the voice alarm 5, the vacuum pump 62, and the control valve 64.

[0032] In this embodiment, the vacuum sensor 2 monitors the vacuum pressure value inside the experimental chamber 1 in real time and feeds the data back to the controller 8 to determine whether the preset vacuum condition has been reached or to trigger an alarm. The load pressure sensor 3 measures the actual pressure value applied by the load mechanism 7 to ensure that the loading process meets the experimental design requirements and transmits the data to the controller 8. The alarm signal is transmitted to the outside world through the alarm light 4 and the voice alarm 5. In this embodiment, the controller 8 is a PLC controller and can be any conventional product of any brand such as Siemens, Mitsubishi, and Omron.

[0033] The working principle of this utility model is as follows:

[0034] First, add an appropriate amount of soil into the test chamber 1. Then, rotate the threaded rod 73 by operating block 74 to drive the sealing cover plate 71 to gradually approach the top surface of the test chamber 1. Finally, the sealing ring 77 will contact the top surface of the test chamber 1, thereby sealing the test chamber 1.

[0035] Then, after tightening the threaded rod 73, the elastic element 75 will be compressed and come into contact with the top surface of the sealing cover 71, thereby absorbing slight vibrations. Then, the vacuum pump 62 is started by the controller 8. The vacuum pump 62 evacuates the interior of the experimental chamber 1 through the transmission pipe 63. At the same time, the gas flow rate is adjusted by the control valve 64 to achieve precise control of the vacuum degree. The vacuum sensor 2 monitors the vacuum degree inside the experimental chamber 1 in real time and feeds the data back to the controller 8. If the vacuum degree inside the experimental chamber 1 is lower than the preset threshold, such as due to air leakage or pump failure, the controller 8 will trigger the alarm light 4 to flash and the voice alarm 5 to remind the operator to check the vacuum pump or the sealing.

[0036] Finally, if the vacuum sensor 2 and the load pressure sensor 3 detect abnormal data during the experiment, they will quickly transmit the signal to the controller 8. The controller 8 will then control the alarm light 4 and the voice alarm 5 to send an alarm signal to the outside world.

[0037] In summary, this utility model has the following advantages:

[0038] This vacuum combined loading preloading experimental device with alarm function can monitor the vacuum level and loading pressure in the experimental chamber in real time through built-in vacuum sensors and loading pressure sensors. When the values ​​exceed the preset safety range, the alarm light and voice alarm are immediately triggered to promptly remind the operator to handle the abnormality, such as insufficient vacuum or excessive loading pressure, to avoid experimental data distortion or equipment damage. The pressurization mechanism can accurately adjust the vacuum level in the experimental chamber, and the loading mechanism can stably apply controllable loading pressure. Combined with sensor feedback, it can achieve precise control of experimental conditions, solving the problem of lacking real-time monitoring and alarm functions, and failing to detect abnormalities that may occur during the experiment in a timely manner, such as insufficient vacuum and excessive loading pressure.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum combined surcharge preloading experimental device with alarm function, characterized in that, The device includes: an experimental chamber, which is equipped with a vacuum sensor and a stack of load pressure sensors inside, and an alarm light and a voice alarm are fixedly installed on its exterior. A pressurization mechanism installed on the outer side of the experimental chamber; A stacking mechanism mounted on top of the experimental chamber; and A controller with a display panel is installed on the outer surface of the experimental chamber and is connected to the vacuum sensor, the load pressure sensor, the alarm light, and the voice alarm.

2. The vacuum combined surcharge preloading experimental device with alarm function according to claim 1, characterized in that: The pressurization mechanism includes: a mounting bracket fixedly connected to the outer side of the experimental chamber; A vacuum pump fixedly mounted within the mounting bracket and connected to the controller; and One end of the transmission pipe is fixedly connected to the output end of the vacuum pump, and the other end extends into the interior of the experimental chamber.

3. The vacuum combined surcharge preloading experimental device with alarm function according to claim 2, characterized in that: The pressurization mechanism also includes a control valve located inside the transmission pipe and connected to the controller.

4. The vacuum combined surcharge preloading experimental device with alarm function according to claim 1, characterized in that: The stacking mechanism includes: a sealing cover plate disposed on the top of the experimental chamber and adapted to the experimental chamber, wherein the top surface of the experimental chamber and the sealing cover plate are provided with a plurality of corresponding threaded holes; Several threaded rods that are threadedly connected to the threaded holes; Several operating blocks are fixedly connected to the top of the threaded rod; Several elastic elements fitted onto the threaded rod, one end of which is fixedly connected to the bottom surface of the operating block; and A stacking component fixedly installed at the bottom of the sealing cover plate.

5. The vacuum combined surcharge preloading experimental device with alarm function according to claim 4, characterized in that: The stacking mechanism also includes a sealing ring surrounding the bottom surface of the sealing cover.

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