Concrete crack monitoring device under action of water pressure

Abstract

The utility model discloses a concrete crack monitoring device under the action of water pressure. Wheels are arranged at the bottom of the outer box; a booster pump is arranged in the outer box, one end of the booster pump is connected with an electric wire, the other end of the booster pump is connected with a gas pipeline, and a pressure valve and a pressure gauge are arranged in the middle of the pipeline; one side of the water tank is connected with a gas pipeline, an iron net is arranged above the other side of the water tank for placing a concrete sample, and a base plate is placed on the pressurized side of the water tank; a camera is arranged above the sample and connected with the crack detector host through a signal connecting line, and the crack width is measured through operation of a host screen. Pressure is generated through the pressure pump, and the pressure is converted into water pressure through the gas pipeline and transmitted to the bottom of the sample. And cracks on the surface of the sample are displayed on a host screen through the camera, so that real-time monitoring of the cracks of the concrete under the action of water pressure is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device field, especially in a kind of concrete crack monitoring device under water pressure. BACKGROUND

[0002] Concrete has raw material easy to get, can pump and can be formed various shapes and so on Advantage, is widely used in building, road, bridge, tunnel and each civil engineering field, is the most important building material at present. Due to the influence of mix design, construction quality or service environment and various factors, lead to concrete crack. According to the size and category of crack, the influence on concrete is different. Most of concrete structures will have crack, in general building structure, concrete member is usually crack work. In the field of hydraulic engineering, the influence of tiny crack on engineering structure safety is huge. Especially in water pipeline or water tunnel structure, crack will lead to the risk of structure leakage.

[0003] For the problem of concrete member cracking, crack monitoring of concrete in service process is needed to determine the cracking condition of concrete, so as to optimize material and structure design and reduce the risk of member cracking. There are many ways to cause concrete cracking, and the current concrete crack test method is mainly aimed at concrete plastic cracking, and there are few monitoring devices for hydraulic concrete crack. Therefore, based on the above technical problems, a concrete crack monitoring device under water pressure is designed, which provides a favorable tool for monitoring the cracking condition of concrete. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a concrete crack monitoring device under water pressure to solve the problems in the above background.

[0005] The utility model provides the following technical scheme: a concrete crack monitoring device under water pressure, comprising: outer box, pressure pump, communicating water tank, camera, detector host computer;

[0006] The outer side bottom of the outer box is equipped with wheels, the pressure pump is placed on the inner side bottom of the outer box, the pressure pump is connected with the outer box through support mounting, the communicating water tank is placed on the inner side bottom of the outer box, the communicating water tank is connected with the outer box through bolt mounting, the camera is placed on the top of sample, and the detector host computer is connected with the camera through signal connection line.

[0007] Preferably, one side of the pressure pump is connected with electric wire, and the electric wire is fixed on the outer side of the outer box.

[0008] Preferably, one side of the pressurizing pump is connected with a gas conveying pipe, a pressure valve and a pressure gauge are arranged between the gas conveying pipe and the pressurizing pump, and a rubber plug is arranged between the gas conveying pipe and the pressurizing pump.

[0009] Preferably, the gas conveying pipe is made of a rigid material, and one side of the gas conveying pipe is connected with a communicating water tank, and a rubber plug is arranged at the connecting position of the gas conveying pipe and the communicating water tank.

[0010] Preferably, a base plate is arranged on one side of the communicating water tank, a waterproof material is coated on the outer side of the base plate, a wire mesh is arranged on one side of the communicating water tank, the wire mesh is welded to the inner side of the communicating water tank, a concrete sample is arranged above the wire mesh, a waterproof material is coated on the outer side of the concrete sample, buckles are arranged on two sides of the concrete sample, and a camera is arranged on the top of the concrete sample.

[0011] Preferably, the camera is connected with the detector host through a signal connection line, and the detector host is fixed to the outer side of the outer box.

[0012] The water pressure acting on the concrete crack monitoring device has the advantages that:

[0013] (1) The water pressure acting on the concrete crack monitoring device, first, the pressurizing pump works to generate air pressure, the air pressure is converted into water pressure through the base plate, pressure conversion is realized, then the water pressure is applied to the surface of the concrete sample through the communicating water tank, so that the concrete is continuously acted on by the water pressure. In the process of working of the pressurizing pump, the air pressure is changed through the pressure valve, and the real-time pressure value is monitored through the pressure gauge, so that the pressure monitoring and adjusting functions are realized.

[0014] (2) The water pressure acting on the concrete crack monitoring device, the camera arranged above the sample transmits the picture to the screen of the detector host, the appearance and expansion of the surface cracks of the concrete sample can be monitored, and the width of the cracks of the concrete sample can be measured.

[0015] (3) The water pressure acting on the concrete crack monitoring device, the pressurizing pump, the communicating water tank and the detector host are all fixed to the outer box, and are fixedly connected between parts, so that the staff can realize the movement of the whole device through the pulley of the outer box, the structure is simple, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model.

[0017] In the drawing: 1, outer box; 2, power cord; 3, pressurizing pump; 4, pressure valve; 5, pressurizing pump support; 6, gas conveying pipe; 7, communicating water tank; 8, base plate; 9, wire mesh; 10, sample; 11, buckle; 12, camera; 13, signal connection line; 14, detector host; 15, wheel; 16, pressure gauge; 17, rubber plug. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be described in detail below with reference to the drawings in the embodiments of the utility model. The described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] The utility model provides a kind of concrete crack monitoring device under water pressure as shown in Figure 1

[0020] The outer bottom of the outer box 1 is provided with wheels 15, so that the entire device system can be freely moved. The inner bottom of the outer box 1 is fixed by bolts to the pressurizing pump bracket 5, and the inner bottom of the outer box 1 is fixed by bolts to the communicating water tank 7, so that the positions of the communicating water tank and the sensor remain fixed during the movement and testing process of the overall device.

[0021] Further, the pressurizing pump 3 is connected to the power cord 2, and the pressurizing pump is started by energization to generate air pressure.

[0022] Further, the gas pipeline 6 is connected to the pressurizing pump 3 by a rubber plug to prevent gas leakage, one end of the gas pipeline 6 is provided with a pressure valve 4 to adjust the pressure value, and one end of the gas pipeline 6 is provided with a pressure gauge 16 to display the real-time pressure value.

[0023] Further, the gas pipeline 6 is connected to the communicating water tank 7 by a rubber plug to prevent gas leakage during pressure transmission, and the gas pipeline 6 is made of hard material to prevent deformation of the gas pipeline 6 under pressure.

[0024] Further, a pad plate 8 is placed at one end of the communicating water tank 7 to prevent gas from entering the water and causing air pressure loss.

[0025] Further, an iron wire mesh 9 is welded inside one end of the communicating water tank 7 to place a test sample 10, so that the bottom of the test sample 10 is in full contact with water, and the communicating water tank 7 can be filled with water. Waterproof material is applied to both sides of the test sample 10 to prevent water leakage.

[0026] Further, buckles 11 are provided on both sides of the test sample 10 to prevent the test sample 10 from moving under pressure.

[0027] Further, a camera 12 is provided at the top of the test sample 10 to take pictures of the surface cracks of the test sample 10.

[0028] ​Further, the signal connection line 13 transmits the picture taken by the camera 12 to the detector host 14, and the detector host 14 is provided with a distance measuring and photographing function, and the crack width of the sample 10 is measured by the detector host 14.

[0029] In the implementation, the following steps are performed:

[0030] After the device is assembled, water is added to the inside of the communicating water tank 7 through the wire mesh 9, and the water adding is stopped when the liquid surface reaches the position of the pad 8.

[0031] The concrete sample 10 is placed on the wire mesh 9, and a waterproof material is applied to the outside of the sample 10 before placement, and the sample 10 is aligned in the buckle during placement. The camera is placed on the top of the sample, and the camera is connected to the detector host 14 through the signal connection line 13.

[0032] The power line 12 is powered on, and the pressure pump 3 starts to generate air pressure. The pressure value is monitored through the pressure gauge 16, and the pressure value can be adjusted through the pressure valve 4.

[0033] When the pressure value reaches the target value, the air pressure is delivered to the communicating water tank 7 through the air pipe 6, and the air pressure pushes the pad 8 to move downward, so that the water pressure is generated and transmitted to the bottom of the concrete sample 10. During the continuous increase of the water pressure, when the water pressure reaches a certain value, the concrete sample 10 cracks.

[0034] Once the concrete sample 10 cracks, the camera 12 transmits the picture to the screen of the detector host 14, and the monitor can observe the real-time change of the crack of the sample 10, and measure the crack width of the sample 10 when cracking, and determine the water pressure value at this time through the pressure gauge 16, and continue to monitor the crack width change of the sample 10 when the water pressure continuously increases.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, and for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A concrete crack monitoring device under the action of water pressure, comprising: an outer box (1); a pressure pump (3); a communication water tank (7); a camera (12), a detector host (14); characterized in that: the bottom of the outer box (1) is provided with wheels (15), the bottom of the outer box (1) and the pressure pump are connected and fixed through a support (5), the communication water tank (7) and the outer box (1) are connected and fixed through bolts, the camera (12) and the detector host (14) are connected through a signal connection line (13), the pressure pump (3) is connected with an electric wire (2), the pressure pump (3) and the communication water tank (7) are provided with a gas pipeline (6) in the middle, the pressure pump (3) and the gas pipeline (6) are provided with a pressure valve (4), one end of the pressure valve (4) is provided with a pressure gauge (16), the gas pipeline (6) and the communication water tank (7) are fixedly connected through a rubber plug (17), one side of the communication water tank (7) is provided with a backing plate (8), the other side of the communication water tank (7) is provided with a wire mesh (9) at the same height as the backing plate (8), a sample (10) is arranged above the wire mesh (9), and buckles (11) are arranged on both sides of the sample (10).

2. The apparatus for monitoring cracks in concrete under water pressure according to claim 1, wherein The camera (12) and the detector host (14) are connected through a signal connection line (13).

3. The apparatus for monitoring cracks in concrete under water pressure according to claim 1, wherein The detector host (14) is provided with ranging and photographing functions.

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