Adjustable support for fixing sensor in civil centrifugal model test

Abstract

The utility model belongs to the field of civil centrifugal model tests, and discloses an adjustable support for fixing a sensor in a civil centrifugal model test. Comprising a sensor mounting module, a cross beam and a sensor power supply fixing module, the sensor mounting modules are arranged on the cross beam in a sleeving mode and detachably connected with the cross beam, one end of the cross beam is detachably connected with the sensor power supply fixing module, the other end of the cross beam is fixedly connected with the model box, the sensor power supply fixing module is used for being fixedly connected with the model box, and the sensor mounting modules are first sensor mounting modules or second sensor mounting modules; the cross beam is a first cross beam or a second cross beam; the first sensor mounting module is detachably connected with the first cross beam, the second sensor mounting module is detachably connected with the second cross beam, the sensor mounting modules can move left and right or up and down in the space according to sensors, the flexibility is high, operation is convenient, and the technical problem that in the prior art, an existing support is insufficient in space is solved.

Description

Technical Field

[0001] This utility model belongs to the field of civil centrifuge model testing technology, and relates to an adjustable bracket for fixing sensors in civil centrifuge model testing. Background Technology

[0002] In civil engineering, geology, and other engineering fields, geotechnical centrifuges are often used to conduct scaled-down simulation tests to analyze prototype working conditions of soil and rock masses or structures in the laboratory. By using the centrifugal force field provided by the centrifuge, the effects of gravity under real ground conditions can be reproduced, ensuring that the stress state of the model in the centrifugal force field is consistent with that of the prototype in the gravity field. Simultaneously, geotechnical centrifuge testing is also an important tool for evaluating the rationality, safety, and economy of geotechnical engineering design results. By simulating actual engineering conditions, the performance of engineering structures under different environmental conditions can be predicted and evaluated, thus providing a scientific basis for engineering design and construction. With the development of technology, geotechnical centrifuge model testing has transitioned from qualitative to quantitative analysis. This means that experimental conditions, such as temperature and humidity, can be controlled more precisely, and data can be measured and recorded more accurately, thereby improving the accuracy and reliability of the experiments. Using geotechnical centrifuges for scaled-down testing reduces disturbance to the soil and rock masses or structures in the field, and also saves materials and reduces costs.

[0003] Geotechnical model tests use a scale-down method to simulate the prototype, making the structural dimensions much smaller than the prototype dimensions, thus significantly reducing the space required for the test. However, in actual testing, because the scale-down ratio is based on the size of the model box, the test object occupies most of the test space. In addition, the large number of sensors that directly contact the test object (such as strain gauges, earth pressure gauges, and accelerometers) and connecting lines further reduce the space occupied by sensors (such as displacement gauges) that are deployed externally to measure relevant data but require support brackets for fixing.

[0004] Existing support structures are fixed, lack flexibility, and are poorly adaptable to complex research conditions. Furthermore, the sensor wiring is often messy and disorganized, resulting in poor aesthetics and tidiness. Therefore, an adjustable support is proposed to meet the spatial requirements of civil centrifuge model tests while simultaneously completing the task of measuring experimental data. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable bracket for fixing sensors in civil centrifuge model tests, thereby solving the technical problem of insufficient space in existing brackets.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: An adjustable bracket for fixing sensors in a civil centrifuge model test includes: a sensor mounting module, a crossbeam, and a sensor power supply fixing module; multiple sensor mounting modules are sleeved on the crossbeam and detachably connected to the crossbeam; one end of the crossbeam is detachably connected to the sensor power supply fixing module, and the other end is fixedly connected to the model box; the sensor power supply fixing module is used to fix the connection to the model box.

[0007] Furthermore, the sensor mounting module is either a first sensor mounting module or a second sensor mounting module; the crossbeam is either a first crossbeam or a second crossbeam; the first sensor mounting module is detachably connected to the first crossbeam, and the second sensor mounting module is detachably connected to the second crossbeam.

[0008] Furthermore, the first sensor mounting module includes a first connecting plate, a second connecting plate, a connector, and a fastener; the second connecting plate is disposed on one side of the first connecting plate, the connector extends from one side of the first connecting plate to the other side and is detachably connected to the second connecting plate, and the fastener passes through the second connecting plate and is detachably connected to the first crossbeam.

[0009] Furthermore, the second connecting plate is provided with a slot in the vertical direction.

[0010] Furthermore, the second sensor mounting module includes a first fixing frame, a second fixing frame, a fixing member, and a connecting member; the second fixing frame is sleeved on the outer surface of the first fixing frame, the fixing member passes through from one side of the first fixing frame to the other side or from one side of the second fixing frame to the other side, and the connecting member passes through the first fixing frame and is detachably connected to the second crossbeam.

[0011] Furthermore, the sensor power supply fixing module includes a hollow panel, a sensor fixing plate, and a model box connecting plate; multiple sensor fixing plates are disposed on the side of the hollow panel away from the crossbeam, the model box connecting plate is located on the same side as the sensor fixing plate and is fixedly connected to the hollow panel, and the sensor fixing plate is detachably connected to the hollow panel.

[0012] Furthermore, the sensor mounting module, crossbeam, and sensor power supply fixing module are made of stainless steel.

[0013] Furthermore, the overlapping portions of the first connecting plate and the second connecting plate are provided with through holes, and the first connecting plate and the second connecting plate are fixedly connected by a connector.

[0014] Furthermore, the overlapping portions of the first and second fixing frames are provided with through holes, and the first and second fixing frames are fixedly connected by fasteners.

[0015] Furthermore, the connecting member is an up-and-down adjusting bolt, the fastener is a fixing bolt, and the fixing member is a suspension bolt.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] This utility model discloses an adjustable bracket for fixing sensors in civil centrifuge model tests. The sensor mounting module can move left and right or up and down in space according to the sensor's position, which is highly flexible and easy to operate.

[0018] This utility model discloses an adjustable bracket for fixing sensors in civil centrifuge model tests. The sensor mounting module adopts a modular design, which is convenient for transportation and simple for assembly. It is conducive to the effective functioning of sensors in confined spaces. The sensor is installed on the upper end of the first connecting plate or in the first fixing frame.

[0019] This utility model discloses an adjustable bracket for fixing sensors in civil centrifuge model tests. The first sensor mounting module or the second sensor mounting module is detachably connected to the crossbeam. During the experiment, the assembly speed block is facilitated to carry out the experiment.

[0020] This utility model discloses an adjustable bracket for fixing sensors in civil centrifuge model tests. The sensor mounting module, crossbeam, and sensor power supply fixing module are made of stainless steel, which ensures the stability of the sensor during the test, thereby ensuring the accuracy and reliability of data measurement.

[0021] This invention relates to an adjustable bracket for fixing sensors in civil centrifuge model tests. The sensors are installed in an orderly manner, and if a problem occurs, technicians can quickly locate the problem point, greatly shortening the troubleshooting time and improving maintenance efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an adjustable bracket for fixing sensors in a civil centrifuge model test according to Embodiment 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the first sensor mounting module in an embodiment of this utility model;

[0025] Figure 3This is a schematic diagram of the structure of the first crossbeam in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of an adjustable bracket for fixing sensors in a civil centrifuge model test according to Embodiment 2 of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the second sensor mounting module in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the second crossbeam in an embodiment of this utility model;

[0029] Figure 7 This is the sensor power supply fixing module in the embodiment of this utility model;

[0030] Figure 8 This is a schematic diagram of the structure of this utility model installed in the model box.

[0031] Figure label:

[0032] 1-First sensor mounting module; 11-First connecting plate; 12-Second connecting plate; 121-Slot; 13-Connector; 14-Fastener; 2-Second sensor mounting module; 21-First fixing frame; 22-Second fixing frame; 23-Fixed component; 3-First crossbeam; 4-Second crossbeam; 5-Sensor power supply fixing module; 51-Hollow panel; 52-Sensor fixing plate; 53-Model box connecting plate. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, such as a process, method, system, product, or apparatus comprising a series of steps or units, are not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings:

[0036] Example 1

[0037] This utility model provides an adjustable bracket for fixing sensors in a civil centrifuge model test, including a sensor mounting module, a crossbeam, and a sensor power supply fixing module 5; multiple sensor mounting modules are sleeved on the crossbeam and detachably connected to the crossbeam, one end of the crossbeam is detachably connected to the sensor power supply fixing module 5, and the other end is fixedly connected to the model box, and the sensor power supply fixing module 5 is used to fix the connection to the model box.

[0038] In this embodiment, the sensor mounting module is the first sensor mounting module 1, and the crossbeam is the first crossbeam 3.

[0039] Specifically, such as Figure 2 As shown, the first sensor mounting module 1 includes a first connecting plate 11, a second connecting plate 12, a connector 13, and a fastener 14. The first connecting plate 11 and the second connecting plate 12 are L-shaped, with the second connecting plate 12 disposed on one side of the first connecting plate 11. The shorter sides of the first and second connecting plates are arranged back-to-back, forming a Z-shape. The overlapping portions have through holes along the array direction that mate with the connector 13. The connector 13 passes through one side of the first connecting plate 11 and connects to the other side of the second connecting plate 12. By adjusting the position of the connector 13, the sensor can be moved up and down. The sensor is mounted on the first connecting plate 11 and fixed using the connector 13.

[0040] The second connecting plate 12 has a slot 121 on the side near the through hole. The slot 121 is adapted to the first crossbeam 3, and the second connecting plate 12 is engaged with the slot 121 to fix the second connecting plate 12 to the first crossbeam 3. In addition, fasteners 14 pass through the first crossbeam 3 from one side of the second connecting plate 12 for further fixation to prevent it from falling off. It should be noted that the number of first sensor mounting modules 1 can be adjusted according to the actual situation.

[0041] One side of the first crossbeam 3 is detachably connected to the sensor power supply fixing module 5 via a mounting plate, and the other end is detachably connected to the model box via a mounting plate, such as... Figure 3 As shown, the first crossbeam 3 is L-shaped, and the first crossbeam 3 is fixed to the mounting plate by welding.

[0042] Drilling holes on one side of the first crossbeam 3 completes the construction of the wiring platform, making the wiring route aesthetically pleasing.

[0043] like Figure 7 As shown, the sensor power supply fixing module 5 includes a hollow panel 51, a sensor fixing plate 52, and a model box connecting plate 53, as follows: Figure 1 As shown, the sensor power supply fixing module 5 is located on the left side of the first crossbeam 3. The sensor fixing plate 52 is located on the side of the hollow panel 51 away from the crossbeam. The model box connecting plate 53 is located on the same side as the sensor fixing plate 52, and the model box connecting plate 53 is located at the lower end of one side of the hollow panel 51 and is fixed to the hollow panel 51 by welding. The model box connecting plate 53 is detachably connected to the model box through the connector 13. The design of the hollow panel 51 facilitates the connection of the connector 13.

[0044] Connector 13 is an up-and-down adjusting bolt, and fastener 14 is a fixing bolt.

[0045] The following is a method for using an adjustable bracket for fixing sensors in civil centrifuge model tests:

[0046] Step 1: Fix the sensor to the limiting hole at the bottom of the first connecting plate 11 through the connector 13 to ensure the stability of the sensor during the test.

[0047] Step 2: The top of the second connecting plate 12 is welded from two angle steel pieces to form a slot 121, which is suspended on the first crossbeam 3. With the help of the guide rail formed by the angle steel on one side of the first crossbeam 3, the left and right distance adjustment is achieved.

[0048] Step 3: The overlapping part of the second connecting plate 12 and the first crossbeam 3 is tightened and fixed with fasteners 14 to ensure that it does not fall off the first crossbeam 3 during the operation of the centrifuge.

[0049] Step 4: One end of the first crossbeam 3 is detachably connected to the sensor power supply fixing module 5 via four connectors 13, and the other end is connected to one side of the model box via connectors 13.

[0050] Step 5: The sensor power supply fixing module 5 is connected to the other side of the model box via the connector 13 using the extended steel plate.

[0051] Step Six: Laying out the sensor connection lines. The lines extend upwards into the wiring platform of the first crossbeam 3, are secured by the strip through the holes, and after multiple rounds of binding along the forward direction, are connected to the transformer and wireless module on the sensor power supply fixing module 5.

[0052] Step 7: After the sensor circuit is connected smoothly, the power cord of the power supply device can be connected to the centrifuge power supply to start measuring the relevant test data.

[0053] Step 8: After the test, the adjustable brackets are removed in reverse order of the above steps, and then sorted and put away. This completes the entire test operation and data measurement.

[0054] It should be noted that due to the limited operating space of the centrifuge test, the dimensions of each module must be reasonably set according to the clearance of the model box and its upper edge to ensure that there is sufficient space for the installation and removal of the adjustable bracket.

[0055] Example 2

[0056] An adjustable bracket for fixing sensors in civil centrifuge model tests includes a sensor mounting module, a crossbeam, and a sensor power supply fixing module 5. The sensor mounting module is a second sensor mounting module 2, and the crossbeam is a second crossbeam 4. Figure 4 As shown.

[0057] Second sensor mounting module 2, such as Figure 5 As shown, it includes a first fixing frame 21, a second fixing frame 22, a fixing member 23, and a connecting member 13. The second fixing frame 22 has a hollow structure and is sleeved on the first fixing frame 21, so that the inner surface of the second fixing frame 22 abuts against the outer surface of the first fixing frame 21.

[0058] The first fixed frame 21 located at the lower end of the second fixed frame 22 is used to connect with the sensor, and the first fixed frame 21 located at the upper end of the second fixed frame 22 is used to connect with the second crossbeam 4. In addition, two sets of through holes are provided at the overlapping parts of the first fixed frame 21 and the second fixed frame 22, which can realize vertical adjustment.

[0059] The fixing member 23 passes through the second fixing frame 22 and the first fixing frame 21 for fixation, preventing the second fixing frame 22 from falling off. The connecting member 13 fixes the first fixing frame 21 to the second crossbeam 4. The fixing member 23 passes through the first fixing frame 21 to prevent the first fixing frame 21 from falling off. Adjusting the fixing member 23 allows for adjustment in the left and right directions. The fixing member 23 is a suspension bolt.

[0060] like Figure 6 As shown, the second crossbeam 4 has a hollow structure, and the upper surface serves as a wiring platform. Cable ties are wrapped around the cross-section of the second crossbeam 4 to bind the wiring.

[0061] The following is a method for using an adjustable bracket for fixing sensors in civil centrifuge model tests:

[0062] Step 1: Fix the sensor to the limiting hole at the bottom of the first fixing frame 21 through the connector 13 to ensure the stability of the sensor during the test.

[0063] Step 2: The opposite surfaces of the upper part of the first fixing frame 21 are planed out to form a groove that wraps around the second crossbeam 4. The second crossbeam 4 is suspended by the two fixing pieces 23 at the top, which can achieve the function of adjusting the left and right distance.

[0064] Step 3: The overlapping parts of the first fixing frame 21 and the second fixing frame 22 are tightened and fixed with fasteners 23 to ensure that they do not fall off from the second crossbeam 4 during the operation of the centrifuge.

[0065] Step 4: One end of the second crossbeam 4 is detachably connected to the sensor power supply fixing module 5 via four connectors 13, and the other end is connected to one side of the model box via connectors 13.

[0066] Step 5: The sensor power supply fixing module 5 is connected to the other side of the model box via the connector 13 using the extended steel plate.

[0067] Step Six: The wiring extends upwards along the second sensor mounting module 2 into the wiring platform on the upper part of the second crossbeam 4. It is then secured by binding tape covering the entire cross-section of the second crossbeam 4. After multiple rounds of binding along the forward direction, it connects to the transformer and wireless module on the sensor power supply fixing module 5. Figure 8 As shown.

[0068] Step 7: After the sensor circuit is connected smoothly, the power cord of the power supply device can be connected to the centrifuge power supply to start measuring the relevant test data.

[0069] Step 8: After the test, the adjustable brackets are removed in reverse order of the above steps, and then sorted and put away. This completes the entire test operation and data measurement.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. An adjustable bracket for fixing sensors in civil centrifuge model tests, characterized in that: Includes sensor mounting module, crossbeam and sensor power supply fixing module (5); Multiple sensor mounting modules are mounted on a crossbeam and are detachably connected to the crossbeam. One end of the crossbeam is detachably connected to the sensor power supply fixing module (5), and the other end is fixedly connected to the model box. The sensor power supply fixing module (5) is used to fix the model box.

2. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 1, characterized in that: The sensor mounting module is either a first sensor mounting module (1) or a second sensor mounting module (2). The crossbeam is either the first crossbeam (3) or the second crossbeam (4); The first sensor mounting module (1) is detachably connected to the first crossbeam (3), and the second sensor mounting module (2) is detachably connected to the second crossbeam (4).

3. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 2, characterized in that: The first sensor mounting module (1) includes a first connecting plate (11), a second connecting plate (12), a connector (13), and a fastener (14). The second connecting plate (12) is disposed on one side of the first connecting plate (11), the connector (13) passes through one side of the first connecting plate (11) to the other side and is detachably connected to the second connecting plate (12), and the fastener (14) passes through the second connecting plate (12) and is detachably connected to the first crossbeam (3).

4. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 3, characterized in that: The second connecting plate (12) is provided with a slot (121) in the vertical direction.

5. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 3, characterized in that: The second sensor mounting module (2) includes a first fixing frame (21), a second fixing frame (22), a fixing member (23), and a connecting member (13); The second fixing frame (22) is fitted on the outer surface of the first fixing frame (21). The fixing member (23) passes through one side of the first fixing frame (21) to the other side or through one side of the second fixing frame (22) to the other side. The connecting member (13) passes through the first fixing frame (21) and is detachably connected to the second crossbeam (4).

6. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 1, characterized in that: The sensor power supply fixing module (5) includes a hollow panel (51), a sensor fixing plate (52), and a model box connecting plate (53); Multiple sensor fixing plates (52) are disposed on the side of the hollow panel (51) away from the crossbeam. The model box connecting plate (53) is located on the same side as the sensor fixing plate (52) and is fixedly connected to the hollow panel (51). The sensor fixing plate (52) and the hollow panel (51) are detachably connected.

7. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 1, characterized in that: The sensor mounting module, crossbeam, and sensor power supply fixing module (5) are made of stainless steel.

8. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 3, characterized in that: The overlapping portions of the first connecting plate (11) and the second connecting plate (12) are provided with through holes, and the first connecting plate (11) and the second connecting plate (12) are fixedly connected by the connector (13).

9. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 5, characterized in that: The overlapping portions of the first fixing frame (21) and the second fixing frame (22) are provided with through holes, and the first fixing frame (21) and the second fixing frame (22) are fixedly connected by the fixing member (23).

10. The adjustable bracket for fixing sensors in civil centrifuge model tests according to claim 5, characterized in that: The connector (13) is an up-and-down adjusting bolt, the fastener (14) is a fixing bolt, and the fixing member (23) is a suspension bolt.

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