Concrete impermeability test equipment

Abstract

The utility model discloses concrete impermeability test equipment, and relates to the technical field of concrete test.The concrete impermeability test equipment comprises a bottom plate, supporting legs are installed at the four corners of the upper end of the bottom plate, a test bed is installed at the upper ends of the supporting legs, and a clamping mechanism is installed above the test bed; supports are installed at the upper ends of the two sides of the test bed, a top plate is installed at the upper ends of the supports, a cross-shaped moving mechanism is installed below the top plate, a hydraulic cylinder is installed at the lower end of the cross-shaped moving mechanism, and a hollow detection head is installed at the output end of the hydraulic cylinder. According to the scheme, the problems that existing equipment needs to manufacture concrete into test pieces of corresponding specifications for testing, the universality is low, if leakage occurs in the detection process, a table top is polluted, cleaning is difficult, personnel need to continuously observe the test state, and manpower consumption is large are solved.

Description

Technical Field

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

[0002] There are inevitably micropores and microcracks in concrete. Many harmful substances enter the concrete through micropores and microcracks with water as the medium, causing adverse effects such as steel corrosion and harmful ion erosion, which reduces the durability of concrete. Therefore, in order to ensure the quality of concrete, it is necessary to conduct anti-permeability tests;

[0003] The current concrete impermeability testing equipment, such as the one with announcement number CN213364538U, is named a concrete impermeability testing equipment, which relates to the field of concrete impermeability testing, and includes a bottom plate, both sides of the bottom end of the bottom plate are fixedly connected to bases, the sides of the top end of the bottom plate are fixedly connected to two support plates, the top ends of the two support plates are fixedly connected to a top plate, the middle part of the top end of the top plate is fixedly connected to a connecting rod, the bottom end of the connecting rod is fixedly connected to a test cover plate, the sides of the bottom end of the test cover plate are fixedly connected to an annular protrusion, the top end of the bottom plate is fixedly provided with a test table, and the middle part of the top end of the test table is provided with a concrete test piece.

[0004] However, the existing equipment requires concrete to be made into specimens of corresponding specifications before testing, and has low versatility. If leakage occurs during the testing process, it will contaminate the table and be difficult to clean. In addition, personnel need to continuously observe the test status, which consumes a lot of manpower. Therefore, we proposed a concrete impermeability test equipment to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a concrete anti-seepage test device to solve the problem that the existing equipment proposed in the above background technology needs to make concrete into test pieces of corresponding specifications before testing, has low versatility, and if leakage occurs during the detection process, it will contaminate the table surface and is difficult to clean, and personnel need to continuously observe the test status, which consumes a lot of manpower.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete anti-seepage test equipment, comprising a base plate, support legs are installed at the four corners of the upper end of the base plate, a test bench is installed at the upper end of the support legs, a clamping mechanism is installed above the test bench, brackets are installed at the upper ends of both sides of the test bench, a top plate is installed at the upper end of the bracket, a cross moving mechanism is installed below the top plate, a hydraulic cylinder is installed at the lower end of the cross moving mechanism, a hollow detection head is installed on the output end of the hydraulic cylinder, a pressure sensor is installed at the connection between the hydraulic cylinder and the hollow detection head, a plurality of seepage holes are arranged on the surface of the test bench, a water volume detection mechanism is installed inside the front end of the test bench, a water storage tank is installed at the lower end of the test bench, and a drain valve is installed at the lower end of the water storage tank.

[0007] Preferably, the clamping mechanism includes a bidirectional guide rail and a clamping seat, a forward screw and a reverse screw are installed inside the bidirectional guide rail, one end of the forward screw is fixedly connected to the reverse screw, and a center plate is provided at the connection, a motor is installed at one end of the bidirectional guide rail, and the output end of the motor is transmission-connected to the forward screw, sliders are installed on the forward screw and the reverse screw, and one end of the clamping seat is fixedly connected to the slider, the end face of the clamping seat is provided with a V-shaped groove, and a rubber pad is provided on the outer wall of the V-shaped groove.

[0008] Preferably, a first guide rod is provided above the front end of the test bench, both ends of the first guide rod are connected to the test bench through a first support, and the other end of the clamping seat is slidably connected to the first guide rod.

[0009] Preferably, a sealing ring is installed at the edge of the lower end of the hollow detection head, and a water injection pipe joint is installed on one side of the upper end of the hollow detection head.

[0010] Preferably, the water volume detection mechanism comprises a positioning plate, a sensor bracket and a photoelectric liquid level sensor, the sensor bracket is mounted on the rear end of the positioning plate, and the photoelectric liquid level sensor is mounted on the sensor bracket.

[0011] Preferably, the cross moving mechanism comprises an X-axis electric guide rail and a Y-axis electric guide rail, the Y-axis electric guide rail is mounted on a slider of the X-axis electric guide rail, and the hydraulic cylinder is mounted on the slider of the Y-axis electric guide rail.

[0012] Preferably, a second guide rod is provided below the rear end of the front end of the top plate, both ends of the second guide rod are connected to the top plate through a second support, sliding seats are installed above both ends of the Y-axis electric guide rail, and the Y-axis electric guide rail is slidably connected to the second guide rod through the sliding seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model clamps the concrete precast part by adopting a clamping mechanism. The clamping mechanism adopts two groups of clamping seats with V-shaped grooves to clamp and fix the precast part, which meets the clamping requirements of precast parts of different specifications. There is no need to customize the test pieces, which improves the versatility of the equipment. During the test, the hollow detection head is driven downward by the hydraulic cylinder until the hollow detection head is pressed against the surface of the concrete precast part. Then, the pump switch is turned on to inject the external water source into the hollow detection head along the water injection pipe. The water source in the hollow detection head is pressurized by the pump to carry out the anti-seepage test. At the same time, if the concrete leaks, the leaking water will flow into the water storage tank from the seepage hole of the test bench. At this time, the water volume detection mechanism detects the change of water level in the tank, and realizes automatic detection of the leakage state. There is no need for personnel to continuously observe the state of the precast part. The whole test process is convenient and fast.

[0015] (2) When one point of the concrete precast part is inspected, the hydraulic cylinder can be reset, and the hollow inspection head can be driven to move to another point of the concrete precast part through the cross moving mechanism, and the inspection process can be repeated to achieve multi-point inspection and further improve the inspection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the cross moving mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the rear structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the water volume detection mechanism of the utility model;

[0020] In the figure: 1. bottom plate; 2. supporting leg; 3. test bench; 4. clamping mechanism; 401. two-way guide rail; 402. forward screw rod; 403. reverse screw rod; 404. center plate; 405. clamping seat; 406. V-shaped groove; 407. rubber pad; 5. bracket; 6. top plate; 7. cross moving mechanism; 701. X-axis electric guide rail; 702. Y-axis electric guide rail; 8. hydraulic cylinder; 9. hollow detection head; 901. water injection pipe joint; 902. sealing ring; 10. pressure sensor; 11. first guide rod; 12. first support; 13. seepage hole; 14. water detection mechanism; 141. positioning plate; 142. sensor bracket; 143. photoelectric liquid level sensor; 15. water storage tank; 16. drain valve; 17. sliding seat; 18. second guide rod; 19. second support. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-4 , an embodiment provided by the utility model: a concrete anti-seepage test equipment, comprising a bottom plate 1, four corners of the upper end of the bottom plate 1 are installed with support legs 2, the upper end of the support legs 2 is installed with a test bench 3, a clamping mechanism 4 is installed above the test bench 3, the upper ends of both sides of the test bench 3 are installed with brackets 5, the upper end of the brackets 5 is installed with a top plate 6, a cross moving mechanism 7 is installed below the top plate 6, a hydraulic cylinder 8 is installed at the lower end of the cross moving mechanism 7, a hollow detection head 9 is installed on the output end of the hydraulic cylinder 8, a pressure sensor 10 is installed at the connection between the hydraulic cylinder 8 and the hollow detection head 9, a plurality of seepage holes 13 are arranged on the surface of the test bench 3, a water volume detection mechanism 14 is installed inside the front end of the test bench 3, a water storage tank 15 is installed at the lower end of the test bench 3, a drain valve 16 is installed at the lower end of the water storage tank 15, the clamping mechanism 4 comprises a two-way guide rail 401 and a clamping seat 405, the internal arrangement of the two-way guide rail 401 A forward screw rod 402 and a reverse screw rod 403 are installed, one end of the forward screw rod 402 is fixedly connected to the reverse screw rod 403, and a center plate 404 is provided at the connection, a motor is installed at one end of the two-way guide rail 401, and the output end of the motor is transmission-connected to the forward screw rod 402, sliders are installed on the forward screw rod 402 and the reverse screw rod 403, and one end of the clamping seat 405 is fixedly connected to the slider, the end surface of the clamping seat 405 is provided with a V-shaped groove 406, and a rubber pad 407 is provided on the outer wall of the V-shaped groove 406, a sealing ring 902 is installed at the edge of the lower end of the hollow detection head 9, and a water injection pipe joint 901 is installed on one side of the upper end of the hollow detection head 9, and the water volume detection mechanism 14 includes a positioning plate 141, a sensor bracket 142 and a photoelectric liquid level sensor 143, the sensor bracket 142 is installed at the rear end of the positioning plate 141, and the photoelectric liquid level sensor 143 is installed on the sensor bracket 142;

[0023] When in use, the precast concrete part is placed in the clamping mechanism 4, and the motor of the clamping mechanism 4 is started to drive the forward screw rod 402 and the reverse screw rod 403 to rotate, so that the clamping seat 405 on the sliders of the forward screw rod 402 and the reverse screw rod 403 move toward each other, and the precast concrete part is clamped and positioned by relying on the V-shaped groove 406 on the clamping seat 405. After completion, the hydraulic cylinder 8 on the cross moving mechanism 7 is driven to drive the hollow detection head 9 to move downward until the hollow detection head 9 is pressed against the surface of the precast concrete part. When pressing, the pressure sensor 10 at the output end of the hydraulic cylinder 8 can detect the contact pressure. When the pressure reaches the threshold, the pressure sensor 10 feedback signal to the controller to stop the hydraulic cylinder 8 from continuing to apply force, so that the hollow detection head 9 is in close contact with the concrete prefabricated part. The hollow detection head 9 is connected to the water injection pipe and the pump through the water injection pipe joint 901. The pump switch is turned on to inject the external water source into the hollow detection head 9 along the water injection pipe. The water source in the hollow detection head 9 is pressurized by the pump to carry out the anti-seepage test. During the process, if the concrete leaks, the leaking water will flow into the water storage tank 15 from the seepage hole 13 of the test bench 3. At this time, the water volume detection mechanism 14 detects the change of the water level in the box, and realizes the automatic detection of the leakage state, without the need for personnel to continuously observe the state of the prefabricated part;

[0024] After one point of detection is completed, the hydraulic cylinder 8 is reset, and the hollow detection head 9 can be driven to move to another point of the concrete precast part through the cross moving mechanism 7, so as to realize multi-point detection and further improve the detection accuracy.

[0025] Furthermore, a first guide rod 11 is arranged above the front end of the test bench 3, and both ends of the first guide rod 11 are connected to the test bench 3 through a first support 12, and the other end of the clamping seat 405 is slidably connected to the first guide rod 11, and the cross moving mechanism 7 includes an X-axis electric guide rail 701 and a Y-axis electric guide rail 702, and the Y-axis electric guide rail 702 is installed on the slider of the X-axis electric guide rail 701, and the hydraulic cylinder 8 is installed on the slider of the Y-axis electric guide rail 702, and a second guide rod 18 is arranged below the rear end of the front end of the top plate 6, and both ends of the second guide rod 18 are connected to the top plate 6 through a second support 19, and a sliding seat 17 is installed above both ends of the Y-axis electric guide rail 702, and the Y-axis electric guide rail 702 is slidably connected to the second guide rod 18 through the sliding seat 17, and the first guide rod 11 and the second guide rod 18 both play an auxiliary guiding role, thereby improving the operating stability of the clamping mechanism 4 and the cross moving mechanism 7.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A concrete impermeability test device, comprising a bottom plate (1), characterized in that: Support legs (2) are installed at the four corners of the upper end of the bottom plate (1), a test bench (3) is installed at the upper end of the support legs (2), a clamping mechanism (4) is installed above the test bench (3), brackets (5) are installed at the upper ends of both sides of the test bench (3), a top plate (6) is installed at the upper end of the brackets (5), a cross moving mechanism (7) is installed below the top plate (6), a hydraulic cylinder (8) is installed at the lower end of the cross moving mechanism (7), a hollow detection head (9) is installed at the output end of the hydraulic cylinder (8), a pressure sensor (10) is installed at the connection between the hydraulic cylinder (8) and the hollow detection head (9), a plurality of seepage holes (13) are provided on the surface of the test bench (3), a water volume detection mechanism (14) is installed inside the front end of the test bench (3), a water storage tank (15) is installed at the lower end of the test bench (3), and a drainage valve (16) is installed at the lower end of the water storage tank (15).

2. A concrete impermeability test equipment according to claim 1, characterized in that: The clamping mechanism (4) comprises a bidirectional guide rail (401) and a clamping seat (405); a forward screw rod (402) and a reverse screw rod (403) are installed inside the bidirectional guide rail (401); one end of the forward screw rod (402) is fixedly connected to the reverse screw rod (403), and a center plate (404) is provided at the connection; a motor is installed at one end of the bidirectional guide rail (401), and the output end of the motor is transmission-connected to the forward screw rod (402); a slider is installed on both the forward screw rod (402) and the reverse screw rod (403), and one end of the clamping seat (405) is fixedly connected to the slider; an end surface of the clamping seat (405) is provided with a V-shaped groove (406), and a rubber pad (407) is provided on the outer wall of the V-shaped groove (406).

3. A concrete impermeability test equipment according to claim 2, characterized in that: A first guide rod (11) is arranged above the front end of the test bench (3), both ends of the first guide rod (11) are connected to the test bench (3) via a first support (12), and the other end of the clamping seat (405) is slidably connected to the first guide rod (11).

4. A concrete impermeability test equipment according to claim 1, characterized in that: A sealing ring (902) is installed at the edge of the lower end of the hollow detection head (9), and a water injection pipe joint (901) is installed on one side of the upper end of the hollow detection head (9).

5. A concrete impermeability test equipment according to claim 1, characterized in that: The water volume detection mechanism (14) comprises a positioning plate (141), a sensor bracket (142) and a photoelectric liquid level sensor (143); the sensor bracket (142) is mounted on the rear end of the positioning plate (141); and the photoelectric liquid level sensor (143) is mounted on the sensor bracket (142).

6. A concrete impermeability test equipment according to claim 1, characterized in that: The cross moving mechanism (7) comprises an X-axis electric guide rail (701) and a Y-axis electric guide rail (702); the Y-axis electric guide rail (702) is mounted on a slider of the X-axis electric guide rail (701); and the hydraulic cylinder (8) is mounted on the slider of the Y-axis electric guide rail (702).

7. A concrete impermeability test equipment according to claim 6, characterized in that: A second guide rod (18) is provided below the front end and the rear end of the top plate (6), and both ends of the second guide rod (18) are connected to the top plate (6) via a second support (19). A sliding seat (17) is installed above both ends of the Y-axis electric guide rail (702), and the Y-axis electric guide rail (702) is slidably connected to the second guide rod (18) via the sliding seat (17).

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