Experimental device for testing impermeability of concrete

Abstract

The utility model relates to the technical field of concrete anti-permeability performance testing, in particular to an experimental device for testing concrete anti-permeability performance, which comprises a tester, the top of the tester is provided with lofting cylinders distributed in equal columns, the inner walls of the lofting cylinders are clamped with a waterproof cover, and the inner wall of the waterproof cover is slidably connected with a piston; the adjusting mechanism is used for adjusting different water pressures in the plurality of lofting cylinders and is arranged at the top of the tester; according to the device, different water pressures in a plurality of lofting cylinders are adjusted by utilizing the screw rod and the connecting block, so that the inconvenience of testing the impermeability of concrete with different water pressures for multiple times is avoided, the portability of testing the impermeability of the concrete is improved, and the observation of a downward moving unit of the connecting block is realized by utilizing the measuring plate; furthermore, the downward moving unit of each connecting block can be compared, so that different conditions of water pressure in each lofting cylinder can be conveniently observed.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete anti-seepage performance testing, in particular to an experimental device for testing the concrete anti-seepage performance. Background Art

[0002] Concrete is a commonly used building material with good durability, compressive strength and fire resistance. It is widely used in construction, roads, bridges and other projects. In order to ensure the safety and durability of concrete structures, concrete samples are usually placed on a water-resistance performance instrument for water-resistance performance testing.

[0003] The Chinese patent "A concrete impermeability test mold assembly for concrete impermeability test" authorization announcement number "CN217180507U" can gradually apply pressure to the water inside the test mold cylinder through a cylinder, a connecting plate, a connecting rod and a piston, thereby improving the test accuracy of the concrete block.

[0004] The water pressure inside all the above-mentioned test molds is gradually consistent, which easily leads to the need to test the impermeability of concrete under different water pressures for multiple times, thereby increasing the complexity of testing the impermeability of concrete.

[0005] Therefore, an experimental device for testing the impermeability of concrete is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an experimental device for testing the anti-permeability of concrete in order to solve the above-mentioned problem, thereby improving the problem that the anti-permeability of concrete needs to be tested multiple times under different water pressures, resulting in cumbersome testing of the anti-permeability of concrete.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: an experimental device for testing the anti-seepage performance of concrete, comprising: a tester, the top of which is provided with equally distributed sample tubes, the inner wall of which is clamped with a waterproof cover, and the inner wall of which is slidably connected with a piston; an adjustment mechanism, the adjustment mechanism for adjusting the different water pressures in a plurality of sample tubes is arranged on the top of the tester; wherein the adjustment mechanism comprises a connecting block fixedly connected to the top of the piston, the front end of which is fixedly connected with a measuring plate on one side, the inner wall of which is rotatably connected with a screw rod, the inner wall of which is threadedly connected to the surface of the screw rod, and an adjustment component is arranged on the top of the tester. By using the screw rod and the connecting block, the water pressure in a plurality of sample tubes can be adjusted differently, thereby avoiding the inconvenience of testing the anti-seepage performance of concrete with different water pressures for multiple times, thereby improving the portability of testing the anti-seepage performance of concrete, and by using the measuring plate, the viewing of the downward moving unit of the connecting block can be realized, and the downward moving unit of each connecting block can be compared, which is convenient for viewing the different water pressure conditions in each sample tube.

[0008] Preferably, the adjustment assembly includes a fixing frame clamped to the inner wall of the waterproof cover, the surface of the fixing frame is slidably connected to the inner wall of the staking tube, the inner wall of the staking tube is clamped with a mounting frame, the surface of the mounting frame is slidably connected to the inner wall of the tester, the top of the mounting frame is fixedly connected to the bottom of the fixing frame, one side of the fixing frame is fixedly connected to a movable frame, the top of the tester is provided with a movable block, the top of the movable block is provided with a symmetrical movable hole, and the surface of the movable frame is slidably connected to the inner wall of the movable hole. By using the movable block, movable hole, movable frame, fixing frame and mounting frame, multiple staking tubes can be installed on the tester at the same time and multiple waterproof covers can be installed on their respective staking tubes at the same time, ensuring that the installation of the staking tube and the waterproof cover is simple to operate, saving time and effort.

[0009] Preferably, a driven frame is fixedly connected to the top of the fixing frame.

[0010] Preferably, the inner wall of the movable block is slidably connected with a positioning frame, and the surface of the positioning frame is clamped to the inner wall of the tester. The positioning frame is used to position the movable block, thereby ensuring the stability of the sample tube and the waterproof cover after installation.

[0011] Preferably, the top of the tester is fixedly connected to a limit rod, and the inner wall of the movable block is slidably connected to the surface of the limit rod. The limit rod is used to limit the movement of the movable block, ensuring that the movable block will not deviate during movement, thereby ensuring that the fixed frame is accurately clamped in the waterproof cover and the mounting frame is accurately clamped in the sample tube.

[0012] Preferably, a guide rod is fixedly connected to the top of the waterproof cover, and the inner wall of the connecting block is slidably connected to the surface of the guide rod. The guide rod is used to limit the movement of the connecting block and ensure the stability of the connecting block during movement.

[0013] Preferably, one side of the surface of the connection block is in a triangular shape, and a magnifying lens is fixedly connected to the inner wall of the connection block. The connection block with a triangular shape on one side and the magnifying lens are used to better observe the piston downward movement unit.

[0014] Preferably, the bottom end of the positioning frame is in the shape of a truncated cone. The positioning frame with a truncated cone shape at the bottom end can achieve accurate clamping of the positioning frame on the tester, and the positioning movable block is easy to operate.

[0015] The beneficial effects of the utility model are:

[0016] 1. The screw rod and the connecting block are used to adjust the water pressure in multiple lofting tubes differently, thereby avoiding the inconvenience of multiple tests of concrete impermeability under different water pressures, thereby improving the portability of testing concrete impermeability. The measuring board is used to view the downward movement of the connecting block, and then the downward movement of each connecting block can be compared, which is convenient for viewing the different water pressure conditions in each lofting tube;

[0017] 2. By using movable blocks, movable holes, movable frames, fixed frames and mounting frames, multiple staking tubes can be installed on the tester at the same time, and multiple waterproof covers can be installed on their respective staking tubes at the same time, ensuring that the installation of the staking tubes and waterproof covers is simple, time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an exploded view of the lofting tube and waterproof cover of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the regulating component of the utility model.

[0022] In the figure: 1. tester; 2. sample tube; 3. waterproof cover; 4. piston; 5. adjustment mechanism; 51. connecting block; 52. screw rod; 53. measuring plate; 54. adjustment assembly; 541. fixed frame; 542. mounting frame; 543. movable block; 544. movable hole; 545. movable frame; 546. limit rod; 547. positioning frame; 548. driven frame; 549. guide rod; 55. magnifying lens. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] When implementing: Figure 1-4As shown, an experimental device for testing the anti-seepage performance of concrete comprises: a tester 1, the top of the tester 1 is provided with equally distributed sample tubes 2, the inner wall of the sample tube 2 is clamped with a waterproof cover 3, and the inner wall of the waterproof cover 3 is slidably connected with a piston 4; an adjustment mechanism 5, which is used to adjust the different water pressures in a plurality of sample tubes 2. The adjustment mechanism 5 is arranged on the top of the tester 1; wherein the adjustment mechanism 5 comprises a connection block 51 fixedly connected to the top of the piston 4, wherein the front end of the waterproof cover 3 on one side is fixedly connected with a measuring plate 53, and the waterproof cover 3 The inner wall of the connecting block 51 is rotatably connected to a screw rod 52, the inner wall of the measuring plate 53 is threadedly connected to the surface of the screw rod 52, an adjusting component 54 is arranged on the top of the tester 1, one side of the surface of the connecting block 51 is triangular in shape, a magnifying lens 55 is fixedly connected to the inner wall of the connecting block 51, a guide rod 549 is fixedly connected to the top of the waterproof cover 3, the inner wall of the connecting block 51 is slidably connected to the surface of the guide rod 549, a limiting rod 546 is fixedly connected to the top of the tester 1, and the inner wall of the movable block 543 is slidably connected to the surface of the limiting rod 546.

[0025] It should be noted that the tester 1, the sample tube 2, the waterproof cover 3, the measuring plate 53 and the magnifying lens 55 in the above description are all relatively mature devices in the existing technology. The specific models can be selected according to actual needs. At the same time, the tester 1 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0026] When it is necessary to test the anti-seepage performance of concrete, the concrete sample is placed in the sample tube 2, the sample tube 2 is installed on the tester 1, the waterproof cover 3 is installed on the sample tube 2, and a suitable amount of water is added to the waterproof cover 3. The tester 1 is manually opened, and each screw rod 52 is rotated one by one. After the screw rod 52 rotates and drives the connecting block 51 and the two pistons 4 to move down to a suitable position in their respective waterproof covers 3, it can be observed through the measuring plate 53 that the pistons 4 on each side are at different heights, so that the water pressure in the sample tube 2 on each side is different. At this time, the tester 1 starts to test the water seepage of the concrete sample in the sample tube 2 on each side and records it, and then calculates the permeability coefficient or permeability of the concrete according to the experimental recorded data, so as to evaluate the anti-seepage performance of the concrete. When the test is not needed, the tester 1 is manually closed, and the drain valve on the tester 1 is turned to drain the water in the sample tube 2.

[0027] like Figure 2 and Figure 4As shown, the adjustment component 54 includes a fixing frame 541 which is clamped on the inner wall of the waterproof cover 3, the surface of the fixing frame 541 is slidably connected to the inner wall of the setting out tube 2, the inner wall of the setting out tube 2 is clamped with a mounting frame 542, the surface of the mounting frame 542 is slidably connected to the inner wall of the tester 1, the top of the mounting frame 542 is fixedly connected to the bottom of the fixing frame 541, one side of the fixing frame 541 is fixedly connected with a movable frame 545, a movable block 543 is provided on the top of the tester 1, a symmetrical movable hole 544 is opened on the top of the movable block 543, the surface of the movable frame 545 is slidably connected to the inner wall of the movable hole 544, and the top of the fixing frame 541 is fixedly connected with a driven frame 548.

[0028] The movable block 543 is pushed to move in the direction of approaching the sample tube 2. The movement of the movable block 543 drives the two movable frames 545 to approach each other. The movement of the two movable frames 545 drives their respective fixed frames 541 and mounting frames 542 to move. The movement of the fixed frame 541 drives the driven frame 548 and the fixed frame 541 and mounting frame 542 on the other side to move, so that the mounting frames 542 on both sides are clamped in the sample tube 2 and the fixed frame 541 is clamped in the waterproof cover 3, so that multiple sample tubes 2 can be installed on the tester 1 at the same time and multiple waterproof covers 3 can be installed in the sample tube 2 at the same time.

[0029] like Figure 4 As shown, the inner wall of the movable block 543 is slidably connected with a positioning frame 547, the surface of the positioning frame 547 is clamped on the inner wall of the tester 1, and the bottom end of the positioning frame 547 is in the shape of a truncated cone. When the movable block 543 moves to one side of the limit rod 546, it pushes the positioning frame 547, and the positioning frame 547 moves in the movable block 543 and is clamped in the tester 1, thereby positioning the movable block 543.

[0030] When the utility model is in use, the concrete sample is placed in the sample tube 2, the sample tube 2 is mounted on the tester 1, the waterproof cover 3 is mounted on the sample tube 2, the movable block 543 is pushed to move in the direction close to the sample tube 2, the movable block 543 moves through the movable frame 545 and the driven frame 548 so that the mounting frames 542 on both sides are clamped in the sample tube 2 and the fixed frame 541 is clamped in the waterproof cover 3, so that multiple sample tubes 2 are installed on the tester 1 at the same time and multiple waterproof covers 3 are installed in the sample tube 2 at the same time, add a suitable amount of water into the waterproof cover 3, manually open the tester 1, and rotate each screw rod 52 one by one , after the screw rod 52 rotates to drive the connecting block 51 and the two pistons 4 to move down to the appropriate positions in their respective waterproof covers 3, it can be observed through the measuring plate 53 that the pistons 4 on each side are at different heights, so that the water pressure in the sample tube 2 on each side is different. At this time, the tester 1 starts to test the water seepage of the concrete sample in the sample tube 2 on each side and records it, and then calculates the permeability coefficient or permeability of the concrete and other indicators based on the experimental record data, so as to evaluate the anti-seepage performance of the concrete. When the test is not needed, the tester 1 is manually closed, and the drain valve on the tester 1 is turned to drain the water in the sample tube 2.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An experimental device for testing the impermeability of concrete, characterized in that: include: A tester (1), wherein the top of the tester (1) is provided with equally distributed sample tubes (2), the inner wall of the sample tube (2) is clamped with a waterproof cover (3), and the inner wall of the waterproof cover (3) is slidably connected with a piston (4); An adjusting mechanism (5) for adjusting different water pressures in a plurality of lofting tubes (2); the adjusting mechanism (5) is arranged on the top of the tester (1); The adjusting mechanism (5) comprises a connecting block (51) fixedly connected to the top end of the piston (4), a measuring plate (53) is fixedly connected to the front end of the waterproof cover (3) on one side, a screw rod (52) is rotatably connected to the inner wall of the waterproof cover (3), the inner wall of the measuring plate (53) is threadedly connected to the surface of the screw rod (52), and an adjusting component (54) is arranged on the top of the tester (1).

2. An experimental device for testing the impermeability of concrete according to claim 1, characterized in that: The adjustment assembly (54) comprises a fixing frame (541) clamped on the inner wall of the waterproof cover (3); the surface of the fixing frame (541) is slidably connected to the inner wall of the staking tube (2); the inner wall of the staking tube (2) is clamped with a mounting frame (542); the surface of the mounting frame (542) is slidably connected to the inner wall of the tester (1); the top of the mounting frame (542) is fixedly connected to the bottom of the fixing frame (541); one side of the fixing frame (541) is fixedly connected to a movable frame (545); a movable block (543) is provided on the top of the tester (1); a symmetrical movable hole (544) is opened on the top of the movable block (543); the surface of the movable frame (545) is slidably connected to the inner wall of the movable hole (544).

3. An experimental device for testing the impermeability of concrete according to claim 2, characterized in that: The top of the fixed frame (541) is fixedly connected to a driven frame (548).

4. An experimental device for testing the impermeability of concrete according to claim 2, characterized in that: The inner wall of the movable block (543) is slidably connected to a positioning frame (547), and the surface of the positioning frame (547) is snap-fitted to the inner wall of the tester (1).

5. An experimental device for testing the impermeability of concrete according to claim 2, characterized in that: The top of the tester (1) is fixedly connected to a limit rod (546), and the inner wall of the movable block (543) is slidably connected to the surface of the limit rod (546).

6. The experimental device for testing the impermeability of concrete according to claim 1, characterized in that: A guide rod (549) is fixedly connected to the top of the waterproof cover (3), and the inner wall of the connecting block (51) is slidably connected to the surface of the guide rod (549).

7. An experimental device for testing the impermeability of concrete according to claim 1, characterized in that: One side of the surface of the connection block (51) is in a triangular shape, and a magnifying lens (55) is fixedly connected to the inner wall of the connection block (51).

8. An experimental device for testing the impermeability of concrete according to claim 4, characterized in that: The bottom end of the positioning frame (547) is in the shape of a truncated cone.

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