A test device for testing the impermeability of concrete

Abstract

The present application provides a test device for testing the impermeability of concrete, which relates to the technical field of testing the impermeability of concrete, including a test table detachably connected with an assembly barrel for carrying the test concrete, the assembly barrel having a first placement groove, the first placement groove being sleeved with a first sealing sleeve, the assembly barrel having a second placement groove at one end away from the first placement groove, the second placement groove being slidably connected with a plurality of locking baffles, the surface of the locking baffle being sleeved with a second sealing sleeve, the locking baffle moving toward the test concrete when the assembly barrel abuts, and pushing the second sealing sleeve. The present application can reduce the probability of the sealing sleeve sleeved on the concrete specimen being offset when testing the concrete specimen.

Description

Technical Field

[0001] The present application relates to the technical field of testing the anti-permeability performance of concrete, and in particular to a test device for testing the anti-permeability performance of concrete. Background Art

[0002] The test of concrete's impermeability is to directly evaluate the concrete's ability to prevent water or other liquids from passing through it through a specific test method. Impermeability is one of the important indicators of the durability of beam concrete, and plays a vital role in ensuring the safety and long-term stable operation of concrete structures. Commonly used testing methods include water seepage height method, electroosmosis method and nuclear magnetic resonance method. The water seepage height method is a qualitative testing method that determines the concrete's impermeability by measuring the penetration height of water or other liquids in concrete. Concrete is usually placed in a container filled with water, and the height of water penetration into the concrete is observed under a certain pressure.

[0003] Reference publication number CN116840128A, the subject name is a concrete impermeability test device and method, which places the concrete to be tested on a placement position through a symmetrically arranged fixed mold and a movable mold, moves the movable mold to the fixed mold, tightens the test concrete, and tests the concrete after tightening.

[0004] According to the above technical solution, when conducting a permeability test on concrete, it is necessary to install a sealing ring on the axial side wall of the test concrete to reduce the probability of water or other liquids directly penetrating into the test concrete through the connection between the test concrete and the test device during the test. When installing the sealing ring, the process is relatively cumbersome. At the same time, the position of the sealing ring will also affect the test effect. In addition, when installing the sealing ring, the collision between the test concrete and the fixed mold can easily cause the test piece to detach from the test mold, thereby affecting the test results. Summary of the invention

[0005] In view of this, the present application provides a test device for testing the anti-permeability performance of concrete, aiming to solve the problem that the testing process of concrete specimens is relatively cumbersome.

[0006] A test device for testing the anti-seepage performance of concrete provided in the present application adopts the following technical scheme, including a test platform and a water injection port opened on the surface of the test platform; the test platform is detachably connected with an assembly barrel for assembling test concrete, the assembly barrel is provided with a first placement groove, the first placement groove is sleeved with a first sealing sleeve, the assembly barrel is provided with a second placement groove at one end away from the first placement groove, a plurality of locking baffles are slidably connected in the second placement groove, the surface of the locking baffle is sleeved with a second sealing sleeve, and the locking baffle moves closer to the test concrete when the assembly barrel abuts, so as to push the second sealing sleeve.

[0007] By directly arranging the first sealing sleeve and the second sealing sleeve on the assembly barrel, the movement of the first sealing sleeve and the second sealing sleeve can be reduced when the test concrete enters the assembly barrel, so that the distance between the first sealing sleeve and the second sealing sleeve is relatively fixed, which can ensure that the concrete specimen and the test device are relatively airtight to a certain extent, and at the same time can improve the accuracy of the test results.

[0008] Optionally, a locking mechanism for pushing the second sealing sleeve to perform sealing is provided on the assembly barrel.

[0009] Optionally, the locking mechanism includes a hydraulic chamber opened on the side wall of the assembly barrel, a hydraulic block is slidably connected in the hydraulic chamber, a pressure relief port is opened in the hydraulic chamber at the locking baffle, a sealing block is fixedly connected to the locking baffle, and the sealing block is slidably connected in the pressure relief port.

[0010] The tight connection between the second sealing sleeve and the concrete specimen can reduce the probability of water leakage between the second sealing sleeve and the concrete specimen to a certain extent, thereby improving the accuracy of the test. At the same time, making the second sealing sleeve close to each other can quickly establish the closed environment required for the test, reduce preparation time and improve test efficiency.

[0011] Optionally, a locking bolt is fixedly connected to the detection table, and a locking nut is rotatably connected to the assembly barrel, and the locking nut rotates to drive the assembly barrel to be locked.

[0012] By cooperating with the locking bolt and the locking nut, the assembly barrel and the test bench can be brought closer together. During the approach process, the abutting surfaces of the concrete specimen and the assembly barrel can be pushed to the same horizontal plane, thereby reducing the misalignment of the concrete specimen and reducing the connection strength between the first sealing sleeve and the second sealing sleeve and the concrete specimen, resulting in distortion of the test data.

[0013] Optionally, an unlocking mechanism for unlocking the locking baffle seal is provided on the outside of the assembly barrel.

[0014] Optionally, the unlocking mechanism includes an unlocking ring mounted on the assembly barrel, an upward push rod is fixedly connected to the unlocking ring, the upward push rod is slidably connected to the detection platform, an unlocking spring is mounted on the upward push rod, an unlocking top block is fixedly connected to the unlocking ring, a fixed block is slidably connected to the assembly barrel, a fixing spring is fixedly connected at the connection between the fixed block and the assembly barrel, and the fixed block is slidably connected to the unlocking top block.

[0015] By setting the unlocking mechanism, the damage to operators caused by the direct falling of the concrete specimen when installing and removing the concrete specimen can be reduced, and the operational efficiency of testing the concrete specimen can be enhanced.

[0016] Optionally, a leveling spring is fixedly connected to the testing platform, a leveling block is fixedly connected to the leveling spring, and the leveling block is used to push the bottom of the test concrete and the contact surface of the assembly barrel to be on the same horizontal plane.

[0017] Optionally, the assembly barrel is configured in a frustum shape to receive the test concrete.

[0018] Since the position of the sealing sleeve has a certain influence on the consistency of the test results when the first sealing sleeve and the second sealing sleeve are installed, directly installing the first sealing sleeve and the second sealing sleeve on the assembly barrel can ensure the consistency of the test conditions to a certain extent, make the test results between different test pieces comparable, and improve the reliability of the test.

[0019] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0020] 1. By directly arranging the first sealing sleeve and the second sealing sleeve on the assembly barrel, the movement amplitude of the first sealing sleeve and the second sealing sleeve can be reduced when the test concrete enters the assembly barrel, so that the distance between the first sealing sleeve and the second sealing sleeve is kept within a controllable range, which can ensure that the concrete specimen and the test device are relatively airtight to a certain extent, and at the same time can improve the accuracy of the test results.

[0021] 2. The tight connection between the second sealing sleeve and the concrete specimen can reduce the probability of water leakage between the second sealing sleeve and the concrete specimen to a certain extent, thereby improving the accuracy of the test. At the same time, making the second sealing sleeve close to the concrete specimen can quickly establish the closed environment required for the test, reduce preparation time, and improve test efficiency.

[0022] 3. Make the assembly barrel and the test bench closer together. At the same time, during the approach process, the abutting surface of the concrete specimen and the assembly barrel can be pushed to the same horizontal plane, thereby reducing the misalignment of the concrete specimen and reducing the connection strength between the first sealing sleeve and the second sealing sleeve and the concrete specimen, which may cause distortion of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a test device for testing the anti-permeability of concrete in this embodiment;

[0024] Figure 2 This is a schematic diagram of the structure of the assembly barrel of this embodiment;

[0025] Figure 3 This is a schematic diagram of the structure of the first placement slot and the second placement slot of this embodiment;

[0026] Figure 4 This is a cross-sectional schematic diagram of the assembly barrel of this embodiment;

[0027] Figure 5 This is a schematic diagram of the structure of the pressure relief port and the sealing block of this embodiment;

[0028] Figure 6 For this embodiment Figure 5 A partial enlarged view of the middle area B;

[0029] Figure 7 For this embodiment Figure 1 A partial enlarged view of area A in the middle.

[0030] Explanation of the accompanying drawings: 1. Testing table; 11. Water filling port; 2. Assembly barrel; 21. First placement groove; 22. First sealing sleeve; 23. Second placement groove; 24. Locking baffle; 25. Second sealing sleeve; 3. Locking mechanism; 31. Hydraulic chamber; 32. Hydraulic block; 33. Pressure relief port; 34. Sealing block; 4. Locking bolt; 41. Locking nut; 5. Unlocking mechanism; 51. Unlocking collar; 52. Upward push rod; 53. Unlocking spring; 54. Unlocking push block; 55. Fixing block; 56. Fixing spring; 6. Leveling spring; 61. Leveling block. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 7 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0032] Reference Figure 1, Figure 3 and Figure 4 The present embodiment provides a test device for testing the anti-seepage performance of concrete, including a test platform 1 placed on a horizontal plane, a water injection port 11 is provided on the test platform 1, and the water injection port 11 is used to inject water into the test concrete. An assembly barrel 2 for carrying the test concrete is detachably connected to the test platform 1, and the assembly barrel 2 is arranged in a truncated cone shape, and a first placement groove 21 is provided on the assembly barrel 2, and a first sealing sleeve 22 is sleeved in the first placement groove 21. A second placement groove 23 is provided at one end of the assembly barrel 2 away from the first placement groove 21, and a plurality of locking baffles 24 are slidably connected in the second placement groove 23, and a second sealing sleeve 25 is sleeved on the plurality of locking baffles 24. When the assembly barrel 2 and the test platform 1 are abutted, the locking baffle 24 pushes the second sealing sleeve 25 for sealing.

[0033] The assembly barrel 2 is turned upside down and a test concrete block is added into the assembly barrel 2. Due to the truncated cone-shaped setting of the assembly barrel 2, the test concrete moves downward under the action of gravity. During the downward movement, the first sealing sleeve 22 in the first placement groove 21 is sleeved on the test concrete. The assembly barrel 2 is turned over and installed on the inspection table 1. During the installation process, the locking baffle 24 pushes the second sealing sleeve 25 in the second placement groove 23 to approach the test concrete, thereby performing secondary sealing on the surface of the test concrete.

[0034] By directly arranging the first sealing sleeve 22 and the second sealing sleeve 25 on the assembly barrel 2, the movement of the first sealing sleeve 22 and the second sealing sleeve 25 can be reduced when the test concrete enters the assembly barrel 2, so that the distance between the first sealing sleeve 22 and the second sealing sleeve 25 is relatively fixed, which can ensure a certain degree of relative airtightness between the concrete specimen and the test device, and at the same time can improve the accuracy of the test results.

[0035] Since the positions of the sealing sleeves when they are mounted have a certain influence on the consistency of the test results, directly mounting the first sealing sleeve 22 and the second sealing sleeve 25 on the assembly barrel 2 can ensure the consistency of the test conditions to a certain extent, making the test results between different specimens comparable and improving the reliability of the test.

[0036] Reference Figure 2 , Figure 4 and Figure 5A locking mechanism 3 for pushing the second sealing sleeve 25 for sealing is provided on the assembly barrel 2. The locking mechanism 3 includes a hydraulic chamber 31, a hydraulic block 32, a pressure relief port 33 and a sealing block 34. A hydraulic chamber 31 is provided on the side wall of the assembly barrel 2. The hydraulic block 32 is slidably connected in the hydraulic chamber 31. A pressure relief port 33 is provided in the hydraulic chamber 31 at the locking baffle 24. A sealing block 34 is fixedly connected to the locking baffle 24. The sealing block 34 is slidably connected in the pressure relief port 33.

[0037] When installing the assembly barrel 2 on the inspection table 1, the assembly barrel 2 is turned over so that the hydraulic block 32 on the assembly barrel 2 abuts against the inspection table 1. After the abutment, the hydraulic block 32 moves toward the inside of the hydraulic cylinder to increase the pressure inside the hydraulic cylinder and discharge the pressure outward from the pressure relief port 33. When discharging the pressure outward, the sealing block 34 is pushed to move, so that the sealing block 34 pushes the locking baffle 24 to approach the concrete specimen, so that the second sealing sleeve 25 is tightly connected to the concrete specimen.

[0038] Through the tight connection between the second sealing sleeve 25 and the concrete specimen, the probability of water leakage from between the second sealing sleeve 25 and the concrete specimen can be reduced to a certain extent, thereby improving the accuracy of the test. At the same time, making the second sealing sleeve 25 close to the concrete specimen can quickly establish the closed environment required for the test, reduce preparation time, and improve test efficiency.

[0039] Reference Figure 1 and Figure 2 A locking bolt 4 is fixedly connected to the testing platform 1, and a locking nut 41 is rotatably connected to the assembly barrel 2. The locking nut 41 rotates to drive the assembly barrel 2 to be locked.

[0040] After the assembly barrel 2 is turned over, the locking nut 41 is rotated to move the locking nut 41 downward to approach the bottom of the locking bolt 4 and drive the assembly barrel 2 to move downward so that the assembly barrel 2 is further locked.

[0041] By the cooperation of the locking bolt 4 and the locking nut 41, the assembly barrel 2 and the test bench 1 are brought closer together. During the approach process, the abutting surfaces of the concrete specimen and the assembly barrel 2 can be pushed to be on the same horizontal plane, thereby reducing the misalignment of the concrete specimen and reducing the connection strength between the first sealing sleeve 22 and the second sealing sleeve 25 and the concrete specimen, which may cause distortion of the test data.

[0042] Reference Figure 2 , Figure 5 and Figure 6An unlocking mechanism 5 for unlocking the seal of the locking baffle 24 is arranged on the outside of the assembly barrel 2. The unlocking mechanism 5 includes an unlocking collar 51, an upward push rod 52, an unlocking spring 53, an unlocking top block 54, a fixing block 55 and a fixing spring 56. An unlocking collar 51 is sleeved on the assembly barrel 2. The upward push rod 52 is fixedly connected to the unlocking collar 51. The upward push rod 52 is slidably connected to the detection table 1. The upward push rod 52 is sleeved with an unlocking spring 53. The unlocking collar 51 is fixedly connected to the unlocking top block 54. The assembly barrel 2 is slidably connected to the fixing block 55, and the position of the fixing block 55 is communicated with the hydraulic chamber 31. The fixing block 55 is fixedly connected to the fixing spring 56 at the connection between the fixing block 55 and the assembly barrel 2. The fixing block 55 is slidably connected to the unlocking top block 54.

[0043] After the test of the concrete specimen is completed, the locking nut 41 is rotated to move the locking nut 41 upward to release the connection with the locking bolt 4. After the connection is released, the unlocking collar 51 is pressed downward to move the unlocking collar 51 downward. The unlocking collar 51 moves downward to drive the unlocking top block 54 to move toward the fixed block 55, so that the unlocking top block 54 pushes the fixed block 55 to move away from the hydraulic chamber 31, releases the restriction of the fixed block 55 on the hydraulic block 32, and moves the hydraulic block 32 downward, so that the pressure inside the hydraulic chamber 31 is reduced. The reduced pressure inside the hydraulic chamber 31 drives the locking baffle 24 to move away from the concrete specimen, and the concrete specimen is unlocked. After unlocking, the unlocking spring 53 pushes the upward push rod 52 to move upward, and waits for the next concrete specimen to be placed for testing.

[0044] By setting the unlocking mechanism 5, the damage to the operator caused by the direct falling of the concrete specimen when installing and removing the concrete specimen can be reduced, and the operating efficiency of testing the concrete specimen can be enhanced.

[0045] Reference Figure 1 and Figure 7 A leveling spring 6 is fixedly connected to the testing table 1, and a leveling block 61 is fixedly connected to the leveling spring 6. The leveling block 61 is used to push the bottom of the test concrete and the contact surface of the assembly barrel 2 to be at the same level.

[0046] When installing the assembly barrel 2, the leveling spring 6 pushes the leveling block 61 to move toward the side close to the concrete specimen, so that the leveling block 61 abuts against the concrete specimen, and the bottom of the concrete specimen is in the same horizontal plane as the connection between the assembly barrel 2 and the test bench.

[0047] The implementation principle of a test device for testing the anti-permeability of concrete in the embodiment of the present application is:

[0048] The assembly barrel 2 is turned upside down and a test concrete block is added into the assembly barrel 2. Due to the truncated cone-shaped setting of the assembly barrel 2, the test concrete moves downward under the action of gravity. During the downward movement, the first sealing sleeve 22 in the first placement groove 21 is sleeved on the test concrete. The assembly barrel 2 is turned over and installed on the inspection table 1. The locking nut 41 is rotated to move the locking nut 41 downward close to the bottom of the locking bolt 4, and drive the assembly barrel 2 to move downward, so that the assembly barrel 2 is further locked.

[0049] When locking, the hydraulic block 32 on the assembly barrel 2 abuts against the test bench 1. After the abutment, the hydraulic block 32 moves toward the inside of the hydraulic cylinder, increasing the pressure inside the hydraulic cylinder and discharging the pressure outward from the pressure relief port 33. When discharging outward, the sealing block 34 is pushed to move, so that the sealing block 34 pushes the locking baffle 24 to approach the concrete specimen, so that the second sealing sleeve 25 is tightly connected to the concrete specimen, and the leveling spring 6 pushes the leveling block 61 to move toward the side close to the concrete specimen, so that the leveling block 61 abuts against the concrete specimen, so that the bottom of the concrete specimen is at the same horizontal plane as the connection between the assembly barrel 2 and the test bench, and liquid is introduced into the water injection port 11 to detect the concrete specimen.

[0050] After the test of the concrete specimen is completed, the locking nut 41 is rotated to move the locking nut 41 upward to release the connection with the locking bolt 4. After the connection is released, the unlocking collar 51 is pressed downward to move the unlocking collar 51 downward. The unlocking collar 51 moves downward to drive the unlocking top block 54 to move toward the fixed block 55, so that the unlocking top block 54 pushes the fixed block 55 to move away from the hydraulic chamber 31, releases the restriction of the fixed block 55 on the hydraulic block 32, and moves the hydraulic block 32 downward, so that the pressure inside the hydraulic chamber 31 is reduced. The reduced pressure inside the hydraulic chamber 31 drives the locking baffle 24 to move away from the concrete specimen, and the concrete specimen is unlocked. After unlocking, the unlocking spring 53 pushes the upward push rod 52 to move upward, and waits for the next concrete specimen to be placed for testing.

[0051] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A test device for testing the impermeability of concrete, comprising a test bench and a water injection port opened on the surface of the test bench, characterized in that: The testing platform is detachably connected with an assembly barrel for carrying the test concrete, the assembly barrel is provided with a first placement groove, the first placement groove is sleeved with a first sealing sleeve, the assembly barrel is provided with a second placement groove at one end away from the first placement groove, a plurality of locking baffles are slidably connected in the second placement groove, the locking baffles are sleeved with a second sealing sleeve, and the locking baffles move toward the test concrete when the assembly barrel and the testing platform are in contact, so as to push the second sealing sleeve; The assembly barrel is provided with a locking mechanism for pushing the second sealing sleeve to seal, the locking mechanism comprises a hydraulic chamber opened on the side wall of the assembly barrel, a hydraulic block is slidably connected in the hydraulic chamber, a pressure relief port is opened in the hydraulic chamber at the locking baffle, a sealing block is fixedly connected to the locking baffle, and the sealing block is slidably connected in the pressure relief port; An unlocking mechanism for releasing the locking baffle from a sealed state is arranged outside the assembly barrel; The unlocking mechanism includes an unlocking ring sleeved on the assembly barrel, an upward moving push rod is fixedly connected to the unlocking ring, the upward moving push rod is slidably connected to the detection platform, an unlocking spring is sleeved on the upward moving push rod, an unlocking push block is fixedly connected to the unlocking ring, a fixed block is slidably connected to the assembly barrel, a fixing spring is fixedly connected at the connection between the fixed block and the assembly barrel, and the fixed block is slidably connected to the unlocking push block.

2. A test device for testing the impermeability of concrete according to claim 1, characterized in that: A locking bolt is fixedly connected to the detection table, and a locking nut is rotatably connected to the assembly barrel. The rotation of the locking nut can drive the assembly barrel to be locked.

3. A test device for testing the impermeability of concrete according to claim 1, characterized in that: The testing platform is fixedly connected with a leveling spring, and the leveling spring is fixedly connected with a leveling block, and the leveling block is used to push the bottom of the test concrete to be flush with the contact surface of the assembly barrel.

4. A test device for testing the impermeability of concrete according to claim 1, characterized in that: The assembly barrel is arranged in a frustum shape and is used for receiving the test concrete.

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