Concrete impermeability testing device

Abstract

The utility model discloses a concrete impermeability testing device which comprises a supporting frame, a testing table is arranged on the inner side of the supporting frame, a water storage tank is fixedly connected to the lower surface of the testing table, a water inlet pipe is fixedly communicated with the surface of the water storage tank, and a water outlet pipe extending to the surface of the testing table is arranged at the upper end of the water storage tank. The upper surface of the test bed is fixedly connected with a test box for mounting a concrete test piece and a sealing rubber ring respectively, the upper surface of the test box is hinged with a cover plate, first fixing mechanisms are symmetrically arranged on the side surfaces of the test box, and a second fixing mechanism is arranged on the surface of the cover plate. A cover plate can be fixed by arranging a clamping block and a clamping ring, downward pressure can be applied to a concrete test piece by arranging a first fixing mechanism and a second fixing mechanism and rotating a first adjusting screw rod and a second adjusting screw rod, and therefore mounting and fixing of the concrete test piece are achieved. The concrete test piece mounting process is simpler and more convenient.

Description

Technical Field

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

[0002] Concrete is an artificial stone widely used in construction. For some buildings, such as tunnels, hydraulic structures and other construction projects, the concrete used in the buildings is required to have specific anti-seepage properties.

[0003] Through searching, it is found that CN218036308U discloses a device for testing the impermeability of concrete, including an impermeability test bench, a plurality of test bases are installed on the upper end of the impermeability test bench, a test cylinder is connected to the upper end of the test base, a water outlet pipe is installed on the upper end of the test base, a plurality of twist valves are installed on the impermeability test bench, a detection mechanism is provided on the impermeability test bench, the detection mechanism includes a detection cylinder installed on the upper end of the test cylinder, a powdered detection agent is placed in the detection cylinder, an automatic water shut-off mechanism is provided on the impermeability test bench, the automatic water shut-off mechanism includes a twist handle installed on the twist valve, and a pulling frame is installed on the impermeability test bench. The beneficial effect of the utility model is that a powdered detection agent that can react with water is placed above the concrete specimen, and whether water is seeping out from above can be quickly detected, and the twist valve and timer can also be automatically closed without the need for staff supervision, thereby ensuring the test results and being more convenient to use.

[0004] However, during the test, the installation of concrete specimens requires the use of a press, and the operation process is rather cumbersome.

[0005] Moreover, it is also inconvenient to dismantle the concrete specimens after the test, so we need a concrete anti-permeability performance test device. Utility Model Content

[0006] The utility model aims to provide a concrete anti-permeability performance testing device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for testing the anti-seepage performance of concrete, comprising a support frame, a test bench is arranged on the inner side of the support frame, a water tank is fixedly connected to the lower surface of the test bench, a water inlet pipe is fixedly connected to the surface of the water tank, and a valve is arranged on the water inlet pipe, a water outlet pipe extending to the surface of the test bench is arranged at the upper end of the water tank, a test box and a sealing rubber ring for mounting a concrete specimen are respectively fixedly connected to the upper surface of the test bench, a cover plate is hinged on the upper surface of the test box, a clamping ring is rotatably connected to the side of the cover plate, a clamping block matching the clamping ring is fixedly connected to the side of the test box, a first fixing mechanism is symmetrically arranged on the side of the test box, and a second fixing mechanism is arranged on the surface of the cover plate.

[0008] Preferably, the first fixing mechanism includes a first adjusting screw and a trapezoidal fixing block, a hidden groove is opened on the inner wall of the test box, the trapezoidal fixing block is slidably connected to the inner wall of the hidden groove, and the first adjusting screw is threadedly connected to the test box, and the trapezoidal fixing block is rotationally connected to the first adjusting screw.

[0009] Preferably, the second fixing mechanism includes a second adjusting screw, a circular cover, a movable pressure ring and a spring, the second adjusting screw is threadedly connected to the surface of the cover plate, the circular cover is fixedly connected to the lower end of the second adjusting screw, an annular groove is provided on the lower surface of the circular cover, the movable pressure ring is slidably connected to the inner wall of the annular groove, the spring is fixedly connected between the annular groove and the movable pressure ring, and the lower surface of the movable pressure ring is embedded with a plurality of balls in a circular array and rotatably connected thereto.

[0010] Preferably, a feeding hole communicating with the inner side of the circular cover is provided on the surface of the second adjusting screw, and a trowel plate is fixedly connected to the inner wall of the circular cover.

[0011] Preferably, a temperature sensor is fixedly connected to the upper inner wall of the circular cover, an electronic timer is fixedly connected to the surface of the test box, and the temperature sensor and the electronic timer are electrically connected to each other.

[0012] Preferably, a water pressure gauge is provided on the surface of the water tank, a sealing push plate is slidably connected to the inner wall of the water tank, a pressure regulating rod is threadedly connected to the lower end of the water tank, and the pressure regulating rod is rotatably connected to the sealing push plate.

[0013] Preferably, the support frame includes a support base and a rotating rod, the rotating rod is fixedly connected to both sides of the test bench, and the rotating rod is rotatably connected to the support base, and the surfaces of the support base and the rotating rod are provided with sockets, and pins are movably connected in the sockets.

[0014] Beneficial Effects

[0015] The utility model provides a concrete anti-permeability performance test device, which has the following beneficial effects:

[0016] 1. The concrete anti-permeability performance testing device can fix the cover plate by arranging the clamp block and the clamp ring, and can apply downward pressure to the concrete specimen by arranging the first fixing mechanism and the second fixing mechanism and rotating the first adjusting screw and the second adjusting screw, thereby realizing the installation and fixation of the concrete specimen. Compared with the prior art, the installation process of the concrete specimen is simpler and more convenient.

[0017] 2. The concrete anti-permeability test device is provided with a support base, a rotating rod and a latch. By pulling out the latch, the test bench can be rotated at will. By turning the entire test bench 180 degrees, the opening of the test box can be made to face downward. After opening the cover, the concrete specimen can be poured out, thereby providing convenience for the disassembly of the concrete specimen.

[0018] 3. The concrete anti-permeability test device is provided with a feeding hole and a trowel plate. The feeding hole can be used to pour quicklime powder into the inner side of the circular cover. When the second adjusting screw is rotated to fix the concrete specimen, the trowel plate can also be driven to rotate, so that the quicklime powder can be smoothed, effectively avoiding the waste of quicklime powder, and is more convenient and practical to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a concrete anti-permeability performance test device proposed by the utility model;

[0020] Figure 2 This is a cross-sectional structural schematic diagram of a concrete anti-permeability performance test device proposed by the utility model;

[0021] Figure 3 A schematic diagram of a cross-sectional three-dimensional structure of a test box of a concrete anti-permeability test device proposed by the utility model;

[0022] Figure 4 A concrete anti-permeability performance test device proposed by the utility model Figure 3 A is a schematic diagram of the enlarged structure.

[0023] In the figure: 1. concrete specimen; 2. test bench; 3. water storage tank; 4. water inlet pipe; 5. valve; 6. water outlet pipe; 7. test box; 8. sealing rubber ring; 9. cover plate; 10. snap ring; 11. block; 12. first fixing mechanism; 13. second fixing mechanism; 14. first adjusting screw; 15. trapezoidal fixing block; 16. hidden groove; 17. second adjusting screw; 18. round cover; 19. movable pressure ring; 20. spring; 21. ball bearing; 22. feeding hole; 23. trowel plate; 24. temperature sensor; 25. electronic timer; 26. water pressure gauge; 27. sealing push plate; 28. pressure regulating rod; 29. ​​supporting base; 30. rotating rod; 31. latch. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4The utility model provides a technical solution: a concrete anti-seepage performance test device, including a support frame, a test bench 2 is arranged on the inner side of the support frame, a water storage tank 3 is fixedly connected to the lower surface of the test bench 2, a water inlet pipe 4 is fixedly connected to the surface of the water storage tank 3, and a valve 5 is arranged on the water inlet pipe 4, an upper end of the water storage tank 3 is provided with a water outlet pipe 6 extending to the surface of the test bench 2, and a test box 7 and a sealing rubber ring 8 on which a concrete specimen 1 is installed are fixedly connected to the upper surface of the test bench 2, by arranging the sealing rubber ring 8, the water discharged from the water outlet pipe 6 can only contact the concrete specimen 1, thereby avoiding the situation that water leakage affects the detection.

[0026] A cover plate 9 is hinged on the upper surface of the test box 7, a snap ring 10 is rotatably connected to the side of the cover plate 9, a clamping block 11 matching the snap ring 10 is fixedly connected to the side of the test box 7, a first fixing mechanism 12 is symmetrically arranged on the side of the test box 7, and a second fixing mechanism 13 is arranged on the surface of the cover plate 9.

[0027] The first fixing mechanism 12 includes a first adjusting screw 14 and a trapezoidal fixing block 15. A hidden groove 16 is provided on the inner wall of the test box 7. The trapezoidal fixing block 15 is slidably connected to the inner wall of the hidden groove 16, and the first adjusting screw 14 is threadedly connected to the test box 7. The trapezoidal fixing block 15 is rotatably connected to the first adjusting screw 14. By rotating the first adjusting screw 14, the trapezoidal fixing block 15 can be driven to move closer to the concrete specimen 1. The concrete specimen 1 can be preliminarily fixed by utilizing the inclined surface of the trapezoidal fixing block 15 to contact the concrete specimen 1.

[0028] The second fixing mechanism 13 includes a second adjusting screw 17, a circular cover 18, a movable pressure ring 19 and a spring 20. The second adjusting screw 17 is threadedly connected to the surface of the cover plate 9, and the circular cover 18 is fixedly connected to the lower end of the second adjusting screw 17. An annular groove is provided on the lower surface of the circular cover 18. The movable pressure ring 19 is slidably connected to the inner wall of the annular groove. The spring 20 is fixedly connected between the annular groove and the movable pressure ring 19. The lower surface of the movable pressure ring 19 is embedded with a plurality of balls 21 rotatably connected in an annular array. By rotating the second adjusting screw 17, the circular cover 18 can be driven to move downward. Under the elastic force of the spring 20, downward pressure will be applied to the movable pressure ring 19, so that the balls 21 can apply pressure to the concrete specimen 1, thereby further fixing the concrete specimen 1.

[0029] By setting the clamping block 11 and the clamping ring 10, the cover plate 9 can be fixed. By setting the first fixing mechanism 12 and the second fixing mechanism 13, downward pressure can be applied to the concrete specimen 1 by rotating the first adjusting screw 14 and the second adjusting screw 17, thereby achieving the installation and fixation of the concrete specimen 1. Compared with the prior art, the installation process of the concrete specimen 1 is simpler and more convenient.

[0030] A feeding hole 22 connected to the inner side of the circular cover 18 is provided on the surface of the second adjusting screw 17, and a trowel plate 23 is fixedly connected to the inner wall of the circular cover 18. By setting the feeding hole 22 and the trowel plate 23, quicklime powder can be poured into the inner side of the circular cover 18 via the feeding hole 22. While the second adjusting screw 17 is rotated to fix the concrete specimen 1, the trowel plate 23 can also be driven to rotate, so that the quicklime powder can be smoothed. By rolling the ball 21 and expanding and contracting the spring 20, the movable pressure ring 19 can be made to cling to the surface of the concrete specimen 1. By limiting the quicklime powder by the movable pressure ring 19, excessive dispersion of the quicklime powder can be avoided, and the waste of quicklime powder can be effectively avoided. Therefore, it is more convenient and practical to use.

[0031] A temperature sensor 24 is fixedly connected to the upper inner wall of the circular cover 18 , an electronic timer 25 is fixedly connected to the surface of the test box 7 , and the temperature sensor 24 and the electronic timer 25 are electrically connected to each other.

[0032] A water pressure gauge 26 is provided on the surface of the water tank 3, and a sealing push plate 27 is slidably connected to the inner wall of the water tank 3. A pressure regulating rod 28 is threadedly connected to the lower end of the water tank 3, and the pressure regulating rod 28 is rotatably connected to the sealing push plate 27. By closing the valve 5 and rotating the pressure regulating rod 28, the sealing push plate 27 can be driven to move upward, thereby squeezing the water in the water tank 3. By observing the water pressure gauge 26, the water pressure can be adjusted.

[0033] The support frame includes a support base 29 and a rotating rod 30. The rotating rod 30 is fixedly connected to both sides of the test bench 2, and the rotating rod 30 is rotatably connected to the support base 29. The surfaces of the support base 29 and the rotating rod 30 are provided with sockets, and a latch 31 is movably connected in the socket. By arranging the support base 29, the rotating rod 30 and the latch 31, the test bench 2 can be rotated at will by pulling out the latch 31. By turning the entire test bench 2 180 degrees, the opening of the test box 7 can be facing downward. After opening the cover plate 9, the concrete specimen 1 can be poured out, thereby providing convenience for the disassembly of the concrete specimen 1.

[0034] Working principle: When the concrete anti-seepage performance test device is conducting a test, the cover plate 9 can be opened first, and then the concrete specimen 1 coated with the waterproof agent can be placed in the test box 7, and then the clamping ring 10 and the clamping block 11 can be clamped together to fix the cover plate 9, and then the first adjusting screw 14 is rotated, and the concrete specimen 1 is preliminarily fixed by the trapezoidal fixing block 15, and then quicklime powder is poured from the feeding hole 22, and the second adjusting screw 17 is rotated. By rotating the second adjusting screw 17, the concrete specimen 1 can be fixed again by the ball 21, and the quicklime powder can be smoothed by rotating the trowel plate 23. Finally, the water inlet pipe 4 is used to fill the water tank 3 with water. When water penetrates the concrete specimen 1, it will react with the quicklime, thereby generating a large amount of heat. The temperature sensor 24 is used for monitoring, and the signal is sent to the electronic timer 25, so that the time can be recorded. The test result can be obtained by combining the time of the electronic timer 25 and observing the concrete specimen 1.

[0035] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0036] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A concrete anti-permeability test device, comprising a support frame, characterized in that: A test bench (2) is arranged on the inner side of the support frame, a water tank (3) is fixedly connected to the lower surface of the test bench (2), a water inlet pipe (4) is fixedly connected to the surface of the water tank (3), and a valve (5) is arranged on the water inlet pipe (4), a water outlet pipe (6) extending to the surface of the test bench (2) is arranged on the upper end of the water tank (3), a test box (7) on which a concrete test piece (1) is mounted and a sealing rubber ring (8) are respectively fixedly connected to the upper surface of the test bench (2), a cover plate (9) is hingedly connected to the upper surface of the test box (7), a clamping ring (10) is rotatably connected to the side of the cover plate (9), a clamping block (11) matching the clamping ring (10) is fixedly connected to the side of the test box (7), a first fixing mechanism (12) is symmetrically arranged on the side of the test box (7), and a second fixing mechanism (13) is arranged on the surface of the cover plate (9).

2. A concrete anti-permeability test device according to claim 1, characterized in that: The first fixing mechanism (12) comprises a first adjusting screw (14) and a trapezoidal fixing block (15); a hidden groove (16) is provided on the inner wall of the test box (7); the trapezoidal fixing block (15) is slidably connected to the inner wall of the hidden groove (16); the first adjusting screw (14) is threadedly connected to the test box (7); and the trapezoidal fixing block (15) is rotationally connected to the first adjusting screw (14).

3. A concrete anti-permeability test device according to claim 1, characterized in that: The second fixing mechanism (13) comprises a second adjusting screw (17), a circular cover (18), a movable pressure ring (19) and a spring (20); the second adjusting screw (17) is threadedly connected to the surface of the cover plate (9); the circular cover (18) is fixedly connected to the lower end of the second adjusting screw (17); an annular groove is provided on the lower surface of the circular cover (18); the movable pressure ring (19) is slidably connected to the inner wall of the annular groove; the spring (20) is fixedly connected between the annular groove and the movable pressure ring (19); and a plurality of balls (21) are rotatably embedded in the lower surface of the movable pressure ring (19) in the form of an annular array.

4. A concrete anti-permeability test device according to claim 3, characterized in that: A feeding hole (22) communicating with the inner side of the circular cover (18) is provided on the surface of the second adjusting screw (17), and a trowel plate (23) is fixedly connected to the inner wall of the circular cover (18).

5. A concrete anti-permeability test device according to claim 4, characterized in that: A temperature sensor (24) is fixedly connected to the upper inner wall of the circular cover (18), an electronic timer (25) is fixedly connected to the surface of the test box (7), and the temperature sensor (24) and the electronic timer (25) are electrically connected to each other.

6. A concrete impermeability test device according to claim 1, characterized in that: A water pressure gauge (26) is provided on the surface of the water tank (3), a sealing push plate (27) is slidably connected to the inner wall of the water tank (3), a pressure regulating rod (28) is threadedly connected to the lower end of the water tank (3), and the pressure regulating rod (28) is rotatably connected to the sealing push plate (27).

7. A concrete anti-permeability test device according to claim 1, characterized in that: The support frame comprises a support base (29) and a rotating rod (30), wherein the rotating rod (30) is fixedly connected to both sides of the test bench (2), and the rotating rod (30) is rotatably connected to the support base (29), and the surfaces of the support base (29) and the rotating rod (30) are both provided with a socket, and a latch (31) is movably connected in the socket.

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