Concrete impermeability detection mechanism with high adaptability

Abstract

The invention discloses a high-adaptability concrete impermeability detection mechanism, and relates to the technical field of building material performance testing, the high-adaptability concrete impermeability detection mechanism comprises a box body, a pressurizing assembly is arranged in the box body, the pressurizing assembly is communicated with a plurality of molds, the communicating positions of the pressurizing assembly and the molds are all provided with gaskets, the gaskets and the molds are coaxially arranged, and the gaskets are arranged in the box body. The liner is used for preventing the pressurized fluid from permeating from the side of the mold, a plurality of laser emitters and a plurality of photoelectric sensors are arranged on the outer top wall of the box body, and the control system is used for judging the deformation state of each position of the liner according to the magnitude change of an electric signal. Only when the magnitude changes of all the electric signals are the same and the magnitude of the electric signals reaches a set value, it is judged that the deformation states of all the positions of the liner are consistent, it is judged that installation of the mold is completed, and a stop signal is output to a user, so that the pre-tightening force uniformity of all the positions of the mold in test piece installation in the impermeability test is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building material performance testing, in particular to a concrete anti-permeability testing mechanism with strong adaptability. Background Art

[0002] The concrete impermeability test is a key assessment of concrete's ability to resist pressurized water penetration, directly impacting the durability and service life of a structure. This test simulates the process of water penetrating concrete under pressure and determines its impermeability grade (e.g., P6, P8, P12, etc.), providing a basis for engineering design and quality control. The core equipment for this test includes a concrete impermeability tester, a standard impermeability test mold (a frustoconical metal mold), and a bolt fastening system. The mold consists of a base mold, side molds (typically two semi-circular rings), and a top mold (a flange). Bolts secure the mold and apply a preload to ensure a tight seal between the specimen end faces and the mold.

[0003] During the test, uniform distribution of mold preload is crucial. Uneven preload, such as when some bolts are overtightened and others are too loose, can lead to seal failure. The loose areas cannot fully compress the sealing material (such as rubber rings or sealing paste), allowing pressurized water to seep through the gap between the mold and the specimen, resulting in "false leakage" and an inaccurate reflection of the concrete's impermeability. Furthermore, uneven preload can subject the specimen end faces to localized high stresses, causing concrete crushing or microcracks, altering the true penetration path and further affecting test accuracy. Furthermore, uneven force can deform the mold, reducing its service life and increasing testing costs. Therefore, ensuring uniform preload distribution is a key factor in ensuring reliable test results.

[0004] In existing technology, torque wrenches are used to precisely control the tightening torque of bolts. By setting a uniform torque value, torque wrenches indirectly control the preload force of each bolt, significantly improving consistency. However, the actual preload force is still affected by the coefficient of friction. Therefore, proper lubrication of the bolt threads and contact surfaces (such as using molybdenum disulfide paste) is required to stabilize the relationship between torque and preload force.

[0005] Furthermore, the bolt tightening sequence significantly impacts preload uniformity. Tightening in a clockwise or counterclockwise order can easily cause mold shifting or localized deformation. Therefore, a cross-tightening method is essential. For example, a six-bolt mold should be tightened in stages, in the order 1-4-2-5-3-6. Typically, initial tightening is performed at a low torque (30%-50% of the target value), followed by final tightening in the same order to the target torque, ensuring gradual and even stress distribution.

[0006] The use of washers is also an important measure to improve the uniformity of preload. Flat washers can increase the force-bearing area and reduce the risk of local crushing of the flange surface; spherical or conical washers can compensate for the angular deviation between the bolt and the support surface, avoiding the loss of preload due to misalignment. However, in the application of the above solution, it is difficult to monitor the force at various positions of the mold during the installation of the specimen. Although the existing technology can provide the same torque to each bolt through a torque wrench, the actual preload is affected by the operator's standardization, the friction coefficient between the bolt thread and the nut, etc., resulting in differences in the preload at various positions of the specimen in actual operation, which in turn affects the accuracy of the subsequent water resistance test. Summary of the Invention

[0007] The purpose of the present invention is to provide a concrete anti-seepage detection mechanism with strong adaptability to solve the above problems.

[0008] The present invention is achieved through the following technical solutions: A highly adaptable concrete anti-permeability testing mechanism comprises a box body, a pressurizing assembly is provided in the box body, and the pressurizing assembly is connected to a plurality of molds, the pressurizing assembly is used to inject pressurized fluid into a test piece, and a gasket made of elastic material is provided at the connection point between the pressurizing assembly and the mold, the gasket is coaxially arranged with the mold, and the gasket is used to prevent the pressurized fluid from penetrating from the side of the mold, and the top wall of the box body is provided with a plurality of laser emitters and a plurality of photoelectric sensors, the laser emitters are used to emit lasers to the gaskets, and the lasers whose projections on the horizontal plane are parallel are all located on the same plane, and the photoelectric sensors are used to receive light signals corresponding to the lasers and convert the light signals into electrical signals; It also includes a control system, which is used to judge the deformation state of each position of the pad according to the size change of the electrical signal, and only when the size changes of all electrical signals are the same and the size of the electrical signal reaches a set value, it is judged that the deformation state of each position of the pad is consistent, the mold installation is judged to be completed, and a stop signal is output to the user.

[0009] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention uses a joint design of a laser emitter and a photoelectric sensor to judge the deformation state of the gasket at the corresponding position by the obstruction of the laser at each position. Since the deformation of the gasket is caused by the deadweight of the specimen and the mold and the preload of the bolts on the flange, the distribution and size of the preload of the bolts at each position can be inferred, thereby realizing the monitoring of the preload of the bolts during the installation of the specimen, reducing the uneven distribution of preload that may be caused by manual installation in traditional solutions, affecting the sealing effect of the mold side, and possibly causing sealing failure and leakage during the test, affecting the progress of the test. At the same time, specimen damage is likely to occur in areas where the preload is too high, while in areas where the preload is too low, the constraint on the specimen fails.

[0010] Compared with the existing technology, this solution greatly improves the problem of sealing failure caused by uneven pre-tightening force in the anti-seepage test, and reduces the occurrence of test data distortion caused by sealing failure during the test. At the same time, compared with the use of pressure sensors or strain gauges, the sensor in this solution does not directly contact the gasket, avoiding damage to the sensor by high-pressure liquid and test pieces during the installation of the test piece and subsequent tests, thereby affecting the life of the mechanism.

[0011] Moreover, during the anti-seepage test, the specimens tested at the same time need to meet the requirements of the same batch, unified process and standard maintenance. Therefore, the weight of the specimens tested at the same time is basically the same, and the deformation of the pads caused by them is also basically the same. Therefore, the same set of laser emitters and photoelectric sensors can be used to monitor the same position of the pads in the same column or row. Compared with the use of time-of-flight sensors, etc., the use of sensors can be significantly reduced, reducing the difficulty of subsequent data processing.

[0012] Furthermore, the top wall of the box is also provided with an adjustment component, which is used to adjust the position of the laser emitter and the photoelectric sensor. The control system is also used to determine whether the placement of the test piece is completed according to the change in the size of the electrical signal, and only determine that the placement of the test piece is completed when the electrical signal remains unchanged within a set time after decreasing. Then, the adjustment component is controlled to drive the laser emitter and the photoelectric sensor to move, and synchronously determine the position relationship between the laser propagation path and the pad according to the change in the size of the electrical signal. When the electrical signal gradually increases and remains unchanged within a set time, when the electrical signal stops increasing, the corresponding position of the laser emitter is the tangent position of the laser and the outer wall of the pad, then the adjustment component is controlled to work, and the laser emitter and the photoelectric sensor are moved to the tangent position of the laser and the pad, and an installation prompt signal is output to the user.

[0013] Beneficial effect: Through the design of the adjustment component, this solution can adjust the position of the laser after the operator places the test piece, so as to avoid the test piece being too heavy, which will aggravate the deformation of the pad and cause the pad to cover the laser in the initial state, thereby affecting the subsequent monitoring.

[0014] Furthermore, the control system is also used to obtain the specimen formula, the elastic modulus of the pad and the size of the pad input by the user, and calculate the theoretical weight of the specimen based on the specimen formula, and then calculate the theoretical deformation of the pad based on the theoretical weight, the elastic modulus and the size of the pad, and control the operation of the adjustment component based on the theoretical deformation.

[0015] Beneficial effect: This solution uses the technology of theoretical weight of the specimen to reduce the time required for adjusting the laser position in the initial state and improve the installation efficiency of the specimen.

[0016] Furthermore, the box body is flange-connected to the mold, and a mounting assembly is provided above the box body, the mounting assembly includes a mounting plate, a plurality of mounting holes are opened on the mounting plate, the side walls of the mounting holes are rotatably connected with a transmission ring, the transmission ring is used to slide with the nut of the flange and drive the nut of the flange to rotate, and the outer side walls of the transmission ring are coaxially fixedly connected with a gear, the test pieces are each sleeved with an internal gear, the internal gears are rotatably connected to the top wall of the mounting plate, and the internal gears are meshed with the adjacent gears.

[0017] Beneficial effect: Compared with the existing technology, this solution uses the design of the installation component to synchronously drive the nut on the same flange to rotate using the internal gear and the gear, thereby achieving efficient installation of the test piece.

[0018] Furthermore, the control system is also used to: during the operation of the boost component, when the electrical signal remains within a set range during the working time of the boost component, the test piece does not leak water; if the electrical signal increases or decreases when the boost component is working, and the value of the electrical signal after the increase or decrease exceeds the set range, the test piece leaks water, and a prompt signal is output to the user, and the boost component is controlled to stop working.

[0019] Beneficial effect: Through the laser design in this solution, during the test process, the outer wall of the gasket near the laser is continuously monitored for water seepage, which to a certain extent helps users to promptly identify test pieces with sealing failure.

[0020] Furthermore, the adjustment component is a multi-motor linear motor module, the laser emitter and the photoelectric sensor are both installed on the movers of the multi-motor linear motor module, and the control system controls the operation of the multi-motor linear motor module according to electrical signals.

[0021] Beneficial effect: In this solution, the design of a multi-motor linear motor module realizes the asynchronous movement between each laser emitter and each photoelectric sensor, thereby adjusting the laser position. Compared with the solution using a single mover, this solution is simpler to install.

[0022] Furthermore, the adjustment component also includes an electric cylinder, which is hinged to the mover of the multi-motor linear motor module, and the laser emitter and the photoelectric sensor are both hinged to the output end of the adjacent electric cylinder, and the laser emitter and the photoelectric sensor are both hinged to the mover of the adjacent multi-motor linear motor module, and the control system controls the operation of the electric cylinder according to the electrical signal.

[0023] Beneficial effect: This solution uses the design of an electric cylinder to drive the photoelectric sensor and the laser emitter to rotate, so as to change the angle of the laser and realize the simultaneous collection of data of the pads in the same row or column.

[0024] Furthermore, the bottom wall of the mounting plate is detachably connected to the outer top wall of the box body.

[0025] Beneficial effect: In this solution, by making the mounting plate and the top wall of the box body detachable, a certain dark environment is created for the laser emitter and photoelectric sensor during the specimen installation stage without affecting the subsequent anti-seepage test, so as to reduce the influence of external light sources on the signal acquisition of the photoelectric sensor.

[0026] Furthermore, the control system includes a controller and a communication module. The communication module is used to output signals to the user, and the controller is used to receive electrical signals and determine whether the preload force on the pad is uniform based on the electrical signals, and control the communication module to work when the preload force on the pad is evenly distributed.

[0027] Beneficial effect: Compared with the existing technology, the use of a controller in this solution enables the implementation of this solution to have a higher response speed and higher reliability.

[0028] Furthermore, the boosting assembly includes a water pump, the molds are connected to the output end of the water pump, and the connection points between the molds and the water pump are provided with pressure gauges.

[0029] Beneficial effects: Through the combined design of the water pump and pressure gauge, this solution provides a repeatable, high-precision, and automated testing environment for subsequent anti-seepage tests, significantly improving the scientific nature of the data and its engineering guidance value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings: Figure 1is an axonometric drawing of the present invention; Figure 2 A top view of the present invention; Figure 3 for Figure 2 Cross-section in the middle AA direction; Figure 4 for Figure 2 Cross-section in the middle BB direction; Figure 5 A top cross-sectional view of the present invention Figure 6 for Figure 2 Enlarged view of point C in the middle; Figure 7 for Figure 5 Enlarged view of point D in the middle.

[0031] The reference numerals represent: 1. housing; 2. mounting assembly; 21. mounting plate; 22. internal gear; 23. gear; 24. transmission ring; 3. mold; 4. gasket; 5. laser emitter; 6. multi-motor linear motor module; 7. photoelectric sensor; 8. electric cylinder. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the examples and accompanying drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0033] Example 1 like Figures 1 to 7 As shown, this embodiment includes a box body 1, in which a boosting assembly is provided, and the boosting assembly is connected to a plurality of molds 3, and the molds 3 are flange-connected to the boosting assembly, and the boosting assembly is used to inject a boosting fluid into the specimen, and a gasket 4 is provided at the connection between the boosting assembly and the mold 3. In this embodiment, the gasket 4 is made of rubber, and the gasket 4 is used to prevent the boosting fluid from penetrating from the side of the mold 3. The boosting assembly includes a water pump, and the molds 3 are connected to the water pump, and a solenoid valve and a pressure gauge are provided at the connection between the mold 3 and the water pump.

[0034] The outer top wall of the box body 1 is provided with a plurality of laser emitters 5 and a plurality of photoelectric sensors 7. In this embodiment, the laser emitters 5 and the photoelectric sensors 7 are fixedly connected to the box body 1 by bolts. The laser emitters 5 are used to emit lasers to the pads 4, and the lasers that are parallel in projection on the horizontal plane are all located on the same plane. The photoelectric sensors 7 are used to receive optical signals corresponding to the lasers and convert the optical signals into electrical signals.

[0035] It also includes a control system. In this embodiment, the control system includes a controller and a communication module. The communication module and the photoelectric sensor 7 are electrically connected to the controller. The controller is used to judge the deformation state of each position of the pad 4 according to the size change of the electric signal, and only when the size changes of all electric signals are the same and the size of the electric signal reaches the set value, it is judged that the deformation state of each position of the pad 4 is consistent, thereby judging that the installation of the mold 3 is completed and outputting a stop signal to the user.

[0036] The specific implementation method is as follows: When using this solution, the operator presses the prepared test piece into the mold 3. After starting the device, the mold 3 is placed at a suitable position on the top of the box 1 according to the test requirements. After the bolts of the flange plate pass through the upper flange, the nuts are installed.

[0037] During this process, the laser emitter 5 continuously emits laser. In the initial state, when the specimen has not yet pressed the gasket 4 through the upper flange, the gasket 4 has not deformed and does not block the laser. The controller uses the electrical signal obtained by the photoelectric sensor 7 at this time as the initial value. After the specimen is placed, the gasket 4 is gradually deformed by the gravity of the specimen and the mold 3. The height of the gasket 4 decreases and the width increases. Then, as the operator rotates the nut, the pressure exerted by the upper flange on the gasket 4 gradually increases, the deformation of the gasket 4 intensifies, and the width continues to increase. The outer wall of the gasket 4 gradually moves to a position tangent to the laser (i.e., the tangent point) and gradually blocks the laser.

[0038] As the laser shielding range of the pad 4 increases, the light signal received by the photoelectric sensor 7 gradually weakens. The positional relationship between the intersection point and the laser is determined based on the proportion of the light signal weakening (such as weakening to 40%-50% of the initial state).

[0039] Because the positions of laser emitter 5 and photoelectric sensor 7 are fixed, meaning the laser's position is fixed, and the elastic modulus, mounting position, and dimensions of pad 4 are fixed, the deformation state at each location of pad 4 can be determined based on the positional relationship between pad 4 and the laser. Furthermore, because pad 4 is made of elastic material, its deformation at each location is continuous and smooth. Therefore, by connecting the deformation values ​​at each tangent point into a smooth closed curve, the deformation values ​​at each location of the outer wall of pad 4 can be inferred and calculated based on this curve.

[0040] When the force applied to the pad 4 is evenly distributed along the axis of the pad 4, the pad 4 deforms evenly at all locations. However, when the force applied to the pad 4 is unevenly distributed, the resultant torque equivalent to these forces causes uneven deformation at all locations of the pad 4.

[0041] Therefore, according to the size change of the electrical signal collected by the photoelectric sensor 7 at each position, the deformation state of the gasket 4 at each position can be monitored. When the deformation of each position of the outer wall of the same gasket 4 is basically the same, the resultant force of the force applied to the gasket 4 is arranged along the axial direction of the gasket 4. Since the external force applied to the gasket 4 includes the gravity of the mold 3, the gravity of the test piece and the preload force of the bolt, and the gasket 4, the mold 3 and the test piece are coaxially arranged, the gravity of the mold 3 and the gravity of the test piece are both along the axial direction of the gasket 4. If the resultant force of the three is along the axis of the gasket 4 at this time, that is, the preload force of each bolt is arranged along the axis of the gasket 4 and is the same in size.

[0042] Since the size and elastic modulus of the gasket 4 are known, the gasket's deformation, laser obstruction, and electrical signal attenuation can be calculated when the bolts reach the appropriate preload. Therefore, when the preload on each bolt is consistent and reaches the appropriate level, as determined by the electrical signal, the controller activates the communication module and outputs a stop signal to the user, prompting the user to proceed with the subsequent anti-seepage test.

[0043] If the deformation of the outer wall of the gasket 4 is different, that is, the resultant force applied to the gasket 4 is not arranged along the axial direction of the gasket 4, and since the bolts are evenly arranged along the flange plate in the flange connection, the factor causing the change in the direction of the resultant force is the different pre-tightening forces of the bolts. At this time, the controller controls the communication module to output a prompt message to the user, prompting the user to adjust the pre-tightening force of the bolts until the pre-tightening force of the bolts on the same gasket 4 is the same and reaches the appropriate size.

[0044] Compared with the existing technology, this solution utilizes the changes that occur after the gasket 4 is under pressure. Through the design of the laser emitter 5 and the photoelectric sensor 7, the deformation of the gasket 4 is monitored, and then the size of the preload force at each position on the flange is detected, which helps the user to adjust the preload force at each position during the installation of the mold 3, reduce the leakage at the edge of the specimen caused by the uneven preload force at each position of the mold 3, affect the accuracy of the test data, or damage and deformation at the edge of the mold 3 affect the life of the device, etc. At the same time, it can also reduce the cracks in the specimens with low strength or poor maintenance due to excessive preload force at each position of the mold 3, affecting the judgment of the penetration path in the test.

[0045] Example 2 The difference from the above embodiment is that: the top wall of the box body 1 is also provided with an adjustment component, the adjustment component is a multi-motor linear motor module 6, and the adjustment component also includes an electric cylinder 8. In this embodiment, the electric cylinder 8 is a micro-servo electric push cylinder, and the electric cylinder 8 is hinged to the mover of the multi-motor linear motor module 6, and the laser emitter 5 and the photoelectric sensor 7 are both hinged to the output end of the adjacent electric cylinder 8, and the laser emitter 5 and the photoelectric sensor 7 are both hinged to the mover of the adjacent multi-motor linear motor module 6, the laser emitter 5 and the photoelectric sensor 7 are both fixedly connected to the mover of the multi-motor linear motor module 6 by bolts, the adjustment component is used to adjust the position of the laser emitter 5 and the photoelectric sensor 7, the multi-motor linear motor module 6 and the controller Electrical connection, the controller is also used to judge whether the placement of the test piece is completed according to the change in the size of the electrical signal, and judge that the placement of the test piece is completed only when the electrical signal remains unchanged within the set time after decreasing, and then control the adjustment component to drive the laser emitter 5 and the photoelectric sensor 7 to move, and synchronously judge the position relationship between the laser propagation path and the pad 4 according to the change in the size of the electrical signal. When the electrical signal gradually increases and remains unchanged within the set time, when the electrical signal stops increasing, the corresponding position of the laser emitter 5 is the tangent position of the laser and the outer wall of the pad 4, then the multi-motor linear motor module 6 and the electric cylinder 8 are controlled to work, and the laser emitter 5 and the photoelectric sensor 7 are moved to the tangent position of the laser and the pad 4, and an installation prompt signal is output to the user.

[0046] The control system is also used to obtain the specimen formula, the elastic modulus of the pad 4 and the size of the pad 4 input by the user, and calculate the theoretical weight of the specimen according to the specimen formula, and then calculate the theoretical deformation of the pad 4 according to the theoretical weight, the elastic modulus and the size of the pad 4, and control the operation of the multi-motor linear motor module 6 and the electric cylinder 8 according to the theoretical deformation.

[0047] The controller is also used to: during the operation of the boost component, when the electrical signal remains within the set range during the working time of the boost component, the test piece does not leak water; when the boost component is working, the electrical signal increases or decreases, and the value of the electrical signal after increase and decrease exceeds the set range, then the test piece has leaked water, and a prompt signal is output to the user, and the boost component is controlled to stop working.

[0048] The specific implementation process is as follows: During the use of this solution, after the operator completes placing the test piece and before installing the nut, the controller controls the multi-motor linear motor module 6 to operate, driving the laser emitter 5 and the photoelectric sensor 7 to operate synchronously and at a uniform speed. During this process, the laser follows the movement of the laser emitter 5. At the same time, the electric cylinder 8 pushes the laser emitter 5 and the photoelectric sensor 7 to move, thereby causing the laser and the multi-motor linear motor module 6 to tilt their tracks. This causes multiple laser beams acting on the same column (or row) of molds 3 to act on different molds 3 in the same column (or row). The controller continuously determines the positional relationship between the laser and the gasket 4 based on the electrical signal. When the electrical signal decreases, the laser is blocked by the gasket 4. At the moment of the electrical signal decrease, the laser is at a tangent position to the outer wall of the gasket 4. The controller then controls the multi-motor linear motor module 6 again to adjust the position of the laser emitter 5 and the photoelectric sensor 7 through the multi-motor linear motor module 6, so that the laser moves to a position tangent to the gasket 4. The controller then controls the communication module to send an installation message to the user, prompting the user to install the flange bolts.

[0049] This solution can adjust the laser position after the specimen is placed by moving the laser emitter 5 and the photoelectric sensor 7. Compared with the existing technology, this solution can avoid the excessive deformation of the gasket 4 caused by improper material selection or excessive weight of the specimen, which can completely block the laser when the flange bolts are not installed, thus making subsequent measurements impossible. At the same time, this solution can also fine-tune the position of the laser emitter 5 and the photoelectric sensor 7 before the test, reducing the problem of misalignment between the laser emitter 5 and the photoelectric sensor 7 caused by external factors such as equipment vibration, resulting in a decrease in the light signal received by the photoelectric sensor 7 and affecting the test.

[0050] This solution can also obtain the specimen formula input by the user. Since the volume of the standard specimens used in the concrete impermeability test is the same, the theoretical weight corresponding to the specimen can be calculated according to the specimen formula. At the same time, the weight of the mold 3 is known, and the size and elastic modulus of the gasket 4 are known. Therefore, when the flange bolts are not installed, the magnitude of the force applied by the specimen and the mold 3 on the gasket 4 and the resulting deformation of the gasket 4 can be calculated. According to the above deformation, the controller can adjust the position of the laser emitter 5 and the photoelectric sensor 7 while the operator is placing the specimen, so as to reduce the time for adjusting the laser position after the subsequent specimen placement is completed, thereby reducing the time required to install the specimen.

[0051] At the same time, when the booster assembly is operating, the water pump continuously injects pressurized liquid into the installed test piece. As the test progresses, if the operator does not properly seal the test piece, leakage may occur on the side of the test piece during operation, and the pressurized liquid may seep out from the seam of the flange. Under the action of gravity, the droplets flow downward. When the droplets reach the location of the laser, the laser is scattered by the droplets, causing the light signal received by the corresponding photoelectric sensor 7 to weaken. When the droplets flow through the laser, the light signal is enhanced. Therefore, when the electrical signal shows the above changes after the water pump is operating, it can be determined that the test piece at the corresponding location may have a water leakage problem. At this time, the controller controls the communication module to output a prompt message to the user and control the water pump to stop working to avoid further pressurization and cause a safety accident.

[0052] Example 3 The difference from the above embodiment is that: the box body 1 and the mold 3 are flange-connected, and a mounting assembly 2 is provided above the box body 1, and the mounting assembly 2 includes a mounting plate 21, and a plurality of mounting holes are opened on the mounting plate 21. The side walls of the mounting holes are rotatably connected with a transmission ring 24, and the transmission ring 24 is used to slide with the nut of the flange and drive the nut of the flange to rotate. The inner wall of the transmission ring 24 slides up and down with the outer wall of the nut of the flange, and the outer wall of the transmission ring 24 is coaxially fixed with a gear 23 by bolts. The test piece is provided with an internal gear 22, and the internal gear 22 is rotatably connected to the top wall of the mounting plate 21, and the internal gear 22 is meshed with the adjacent gear 23.

[0053] The specific implementation method is as follows: During the use of this solution, before placing the test piece, the mounting plate 21 is installed at the corresponding position of the box body 1. As the laser emitter 5 and the photoelectric sensor 7 work, the operator can use a traditional manual wrench or an electric wrench to slide with any transmission ring 24 after the communication module sends an installation prompt signal, and then turn the wrench. The wrench drives the transmission ring 24 to rotate, and the gear 23 installed on the transmission ring 24 drives the internal gear 22 to rotate, and the internal gear 22 drives the other gears 23 meshing with it to rotate, thereby driving the remaining transmission rings 24 to rotate. During the rotation of the transmission ring, the transmission ring transmits torque to the nut of the flange through its own inner wall, thereby driving the nut to rotate. During the rotation of the nut, due to the limitation of the thread, the nut slides in the vertical direction and gradually approaches the flange, thereby fixing the flange.

[0054] Compared with the existing technology, in this solution, the design of the mounting plate 21 drives the nuts on the same flange to rotate synchronously through several internal gears 22, so as to reduce the stress concentration phenomenon on the mold 3 during the installation process, thereby affecting the accuracy of the subsequent concrete impermeability test. At the same time, the design of the mounting plate 21 can block external light to a certain extent, thereby avoiding the influence of external light sources on laser propagation and signal acquisition of the photoelectric sensor 7, improving the accuracy of the signal collected by the photoelectric sensor 7, and reducing the probability of misjudgment of the controller.

[0055] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A highly adaptable concrete anti-permeability testing mechanism, comprising a box (1), wherein a pressurizing assembly is provided in the box (1), and the pressurizing assembly is connected to a plurality of molds (3), the pressurizing assembly is used to inject pressurized fluid into a test piece, and a gasket (4) made of elastic material is provided at the connection point between the pressurizing assembly and the mold (3), the gasket (4) is coaxially arranged with the mold (3), and the gasket (4) is used to prevent the pressurized fluid from penetrating from the side of the mold (3), characterized in that: The outer top wall of the box (1) is provided with a plurality of laser emitters (5) and a plurality of photoelectric sensors (7), the laser emitters (5) are used to emit lasers toward the pad (4), and the lasers whose projections on the horizontal plane are parallel are all located on the same plane, and the photoelectric sensors (7) are used to receive optical signals corresponding to the lasers and convert the optical signals into electrical signals; The system also includes a control system, which is used to judge the deformation state of each position of the pad (4) according to the size change of the electric signal, and only when the size changes of all the electric signals are the same and the size of the electric signal reaches a set value, it is judged that the deformation state of each position of the pad (4) is consistent, and the installation of the mold (3) is judged to be completed, and a stop signal is output to the user.

2. The highly adaptable concrete anti-seepage detection mechanism according to claim 1, characterized in that: The top wall of the box (1) is also provided with an adjustment component, and the adjustment component is used to adjust the position of the laser emitter (5) and the photoelectric sensor (7). The control system is also used to judge whether the placement of the test piece is completed according to the change in the size of the electric signal, and judge that the placement of the test piece is completed only when the electric signal decreases and remains unchanged within a set time. Then, the adjustment component is controlled to drive the laser emitter (5) and the photoelectric sensor (7) to move, and synchronously judge the position relationship between the laser propagation path and the pad (4) according to the change in the size of the electric signal. When the electric signal gradually increases and remains unchanged within a set time, when the electric signal stops increasing, the corresponding position of the laser emitter (5) is the tangent position of the laser and the outer wall of the pad (4), and the adjustment component is controlled to work, and the laser emitter (5) and the photoelectric sensor (7) are moved to the tangent position of the laser and the pad (4), and an installation prompt signal is output to the user.

3. The highly adaptable concrete anti-seepage detection mechanism according to claim 2, characterized in that: The control system is also used to obtain the sample formula input by the user, the elastic modulus of the pad (4) and the size of the pad (4), and calculate the theoretical weight of the sample according to the sample formula, then calculate the theoretical deformation of the pad (4) according to the theoretical weight, the elastic modulus and the size of the pad (4), and control the operation of the adjustment component according to the theoretical deformation.

4. The highly adaptable concrete anti-seepage detection mechanism according to claim 1, characterized in that: The box body (1) and the mold (3) are flange-connected, and a mounting assembly (2) is provided above the box body (1), the mounting assembly (2) comprising a mounting plate (21), a plurality of mounting holes being provided on the mounting plate (21), the side walls of the mounting holes being rotatably connected to transmission rings (24), the transmission rings (24) being used for slidingly cooperating with the nuts of the flanges and driving the nuts of the flanges to rotate, and the outer side walls of the transmission rings (24) being coaxially fixedly connected to gears (23), the test pieces being sleeved with internal gears (22), the internal gears (22) being rotatably connected to the top wall of the mounting plate (21), and the internal gears (22) being meshed with the adjacent gears (23).

5. The highly adaptable concrete anti-seepage detection mechanism according to claim 1, characterized in that: The control system is also used to: during the operation of the boost component, when the electrical signal remains within a set range during the working time of the boost component, the test piece does not leak water; if the electrical signal increases or decreases during the operation of the boost component, and the value of the increased or decreased electrical signal exceeds the set range, the test piece leaks water. A prompt signal is output to the user, and the boost component is controlled to stop working.

6. The highly adaptable concrete anti-seepage detection mechanism according to claim 2, characterized in that: The regulating component is a multi-motor linear motor module (6), the laser emitter (5) and the photoelectric sensor (7) are both mounted on the movers of the multi-motor linear motor module (6), and the control system controls the operation of the multi-motor linear motor module (6) according to electrical signals.

7. The highly adaptable concrete anti-seepage detection mechanism according to claim 6, characterized in that: The adjustment component also includes an electric cylinder (8), the electric cylinder (8) is hinged to the mover of the multi-motor linear motor module (6), and the laser emitter (5) and the photoelectric sensor (7) are both hinged to the output end of the adjacent electric cylinder (8), and the laser emitter (5) and the photoelectric sensor (7) are both hinged to the mover of the adjacent multi-motor linear motor module (6), and the control system controls the operation of the electric cylinder (8) according to the electrical signal.

8. The highly adaptable concrete anti-seepage detection mechanism according to claim 4, characterized in that: The bottom wall of the mounting plate (21) is detachably connected to the outer top wall of the box body (1).

9. The highly adaptable concrete anti-seepage detection mechanism according to claim 1, characterized in that: The control system includes a controller and a communication module, the communication module is used to output a signal to a user, and the controller is used to receive the electrical signal and determine whether the preload force on the liner (4) is uniform based on the electrical signal, and control the communication module to operate when the preload force on the liner (4) is uniformly distributed.

10. The highly adaptable concrete anti-seepage detection mechanism according to claim 1, characterized in that: The boosting assembly comprises a water pump, the moulds (3) are connected to the output end of the water pump, and a pressure gauge is provided at the connection point between the moulds (3) and the water pump.

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