Instrument for detecting sulfate corrosion resistance of concrete

Abstract

The utility model discloses an instrument for testing the sulfate corrosion resistance of concrete, which comprises a sulfate solution box and a testing box fixedly connected to the top of the sulfate solution box through a support rod, and relates to the technical field of clothing fabrics. According to the instrument for testing the sulfate corrosion resistance of the concrete, a sulfate solution is pumped by controlling a liquid inlet pipe on a liquid pump, the sulfate solution is introduced into a three-way pipe through a liquid outlet pipe, the sulfate solution is added into two liquid spraying pipes through the three-way pipe, and the sulfate solution is sprayed to concrete blocks through a plurality of nozzles on the two liquid spraying pipes; corrosion of raining to the concrete block can be well simulated, then an electric telescopic rod is controlled to contract to drive a strip-shaped plate to move downwards, the strip-shaped plate can drive a plurality of drying lamps to move downwards through a moving plate, the multiple drying lamps are made to move downwards to be close to the concrete block for heating and drying, and thus solution spraying and drying on the concrete block are conducted in a reciprocating mode; the concrete blocks do not need to be manually carried in a reciprocating mode, and operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of clothing fabric technology, specifically to an instrument for testing the sulfate resistance of concrete. Background Technology

[0002] Concrete is corroded in the atmosphere in various ways, with sulfate being the most significant corrosion mechanism. To ensure the service life of concrete, it is necessary to use experimental equipment to test its resistance to sulfate corrosion.

[0003] Current equipment for testing concrete's resistance to sulfate attack includes separate drying chambers and soaking chambers. During each cycle, concrete samples need to be manually moved from the drying chamber to the soaking chamber or vice versa, which is too labor-intensive. Furthermore, directly immersing concrete samples in sulfate solution does not reflect the current situation of rainwater erosion. Therefore, an instrument for testing concrete's resistance to sulfate attack is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an instrument for testing the sulfate resistance of concrete, solving the problem of excessive labor intensity caused by manually moving concrete test blocks from the drying oven to the soaking chamber or vice versa during each cycle.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an instrument for testing the sulfate resistance of concrete, comprising a sulfate solution tank and a test chamber fixedly connected to the top of the sulfate solution tank via a support rod. A support plate is fixedly connected between the front and rear parts of the inner cavity of the test chamber. A pump is fixedly connected to the top of the sulfate solution tank. The inlet end of the pump is connected to an inlet pipe, one end of which penetrates the sulfate solution tank and extends into the interior of the sulfate solution tank. The outlet end of the pump is connected to an outlet pipe, one end of which penetrates the test chamber and extends into the interior of the test chamber. A T-junction is connected to the end of the outlet pipe. Both ends of the T-junction are connected to spray pipes via flexible hoses. Several nozzles are connected to the lower surface of the spray pipes. A pushing mechanism is provided on one side of the support plate. A movable plate adapted to the pushing mechanism is provided above the two spray pipes. Several drying lamps are fixedly installed on one side of the movable plate.

[0006] Preferably, the pushing mechanism includes an electric telescopic rod, which is fixedly connected to one side of the inner cavity of the inspection box via a connecting block. The telescopic end of the electric telescopic rod is fixedly connected to a strip plate via a fixing block. The top of the strip plate is fixedly connected to a moving plate. The front and rear parts of the strip plate are both fixedly connected to a lower inclined panel. The front and rear parts of the inner cavity of the inspection box are both fixedly connected to a sliding cylinder.

[0007] Preferably, a sliding rod is slidably connected inside the sliding cylinder, a moving block is fixedly connected to one end of the sliding rod, a spring is fixedly connected between the side of the inner cavity of the sliding cylinder away from the moving block and the other end of the sliding rod, and an upper inclined panel adapted to the lower inclined panel is fixedly connected to the top of the moving block.

[0008] Preferably, the front and rear of the top of the sulfate solution tank are connected to a drain pipe, one end of which passes through the test tank and extends into the interior of the test tank, and a filter plate is fixedly installed on the upper surface of the inner surface of the drain pipe.

[0009] Preferably, a connecting plate is fixedly connected to the bottom of the movable block, and a fixing plate is fixedly connected to the bottom of the connecting plate.

[0010] Preferably, a brush plate is fixedly connected to one side of the fixing plate.

[0011] Beneficial effects

[0012] This invention provides an instrument for testing the sulfate resistance of concrete. Compared with existing technologies, it has the following advantages:

[0013] (1) This utility model extracts sulfate solution by controlling the inlet pipe of the pump, and then passes the sulfate solution through the outlet pipe into the three-way pipe. The three-way pipe will add the sulfate solution into two spray pipes, and spray the sulfate solution onto the concrete block through multiple nozzles on the two spray pipes. This can effectively simulate the erosion of the concrete block by rain. Then, the electric telescopic rod is controlled to retract and drive the strip plate to move downward. The strip plate will drive multiple drying lamps to move downward through the moving plate, so that the multiple drying lamps move downward and approach the concrete block to heat and dry it. This process of spraying solution and drying the concrete block is repeated, eliminating the need for manual handling of the concrete block and making the operation more convenient.

[0014] (2) The utility model uses an electric telescopic rod to retract and move the strip plate downward. The strip plate will move the two lower inclined panels downward. The lower inclined panels will press down on the upper inclined panels to move forward and backward. The upper inclined panels will move the nozzles, moving the two nozzles forward and backward, without obstructing the multiple drying lamps from drying downward. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the inspection box of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the sulfate solution tank, inspection tank, drain pipe 4, filter plate, connecting plate, fixing plate and brush plate of this utility model.

[0019] Figure 5 This is a schematic diagram of the internal structure of the sliding cylinder, sliding rod, spring, moving block, and upper inclined panel of this utility model.

[0020] In the diagram: 1. Sulfate solution tank; 2. Inspection box; 3. Pump; 4. Inlet pipe; 5. Outlet pipe; 6. T-connector; 7. Spray pipe; 8. Pushing mechanism; 9. Nozzle; 10. Moving plate; 11. Drying lamp; 12. Support plate; 13. Drain pipe; 14. Filter plate; 15. Connecting plate; 16. Fixing plate; 17. Brush plate; 81. Electric telescopic rod; 82. Strip plate; 83. Lower inclined panel; 84. Sliding cylinder; 85. Sliding rod; 86. Spring; 87. Moving block; 88. Upper inclined panel. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figure 1-5 This utility model provides a technical solution: an instrument for testing the sulfate resistance of concrete, comprising a sulfate solution tank 1 and a test chamber 2 fixedly connected to the top of the sulfate solution tank 1 by a support rod. A support plate 12 is fixedly connected between the front and rear of the inner cavity of the test chamber 2. A pump 3 is fixedly connected to the top of the sulfate solution tank 1. The pump 3 is electrically connected to an external power source and controlled by a control switch. The inlet end of the pump 3 is connected to an inlet pipe 4, one end of which penetrates the sulfate solution tank 1 and extends into the interior of the sulfate solution tank 1. The outlet end of the pump 3 is connected to an outlet pipe 5. One end of pipe 5 passes through the inspection box 2 and extends into the interior of the inspection box 2. The end of the outlet pipe 5 is connected to a three-way pipe 6. Both ends of the three-way pipe 6 are connected to a spray pipe 7 through a flexible hose. The flexible hose is a rubber hose. The inlet pipe 4, outlet pipe 5, three-way pipe 6 and spray pipe 7 are all rigid rubber pipes. Several nozzles 9 are connected to the lower surface of the spray pipe 7. A pushing mechanism 8 is provided on one side of the support plate 12. A movable plate 10 adapted to the pushing mechanism 8 is provided above the two spray pipes 7. Several drying lamps 11 are fixedly installed on one side of the movable plate 10. The drying lamps 11 are electrically connected to an external power source and are controlled by a control switch.

[0023] It should be noted that the front of the inspection box 2 is hinged with a sealed door. By opening the sealed door, the concrete block is placed on the support plate 12 for inspection.

[0024] Furthermore, to facilitate the movement of the drying lamp 11, the pushing mechanism 8 includes an electric telescopic rod 81. The electric telescopic rod 81 is electrically connected to an external power source and controlled by a control switch. The electric telescopic rod 81 is fixedly connected to one side of the inner cavity of the inspection box 2 via a connecting block. The telescopic end of the electric telescopic rod 81 is fixedly connected to a strip plate 82 via a fixing block. The top of the strip plate 82 is fixedly connected to the moving plate 10. The front and rear parts of the strip plate 82 are both fixedly connected to a lower inclined panel 83.

[0025] Furthermore, in order to reset the upper inclined panel 88, a sliding cylinder 84 is fixedly connected to the front and rear of the inner cavity of the inspection box 2. A sliding rod 85 is slidably connected inside the sliding cylinder 84. A moving block 87 is fixedly connected to one end of the sliding rod 85. A spring 86 is fixedly connected between the side of the inner cavity of the sliding cylinder 84 away from the moving block 87 and the other end of the sliding rod 85. An upper inclined panel 88 that matches the lower inclined panel 83 is fixedly connected to the top of the moving block 87.

[0026] Furthermore, in order to recycle and reuse excess sulfate solution, drain pipes 13 are connected to the front and rear of the top of the sulfate solution tank 1. One end of the drain pipe 13 passes through the test tank 2 and extends into the interior of the test tank 2. A filter plate 14 is fixedly installed on the upper surface of the inner surface of the drain pipe 13.

[0027] Furthermore, in order to reduce the clogging of the filter plate 14, a connecting plate 15 is fixedly connected to the bottom of the moving block 87, a fixing plate 16 is fixedly connected to the bottom of the connecting plate 15, and a brush plate 17 is fixedly connected to one side of the fixing plate 16.

[0028] In use, open the sealed door and place the concrete block on the support plate 12. Then, control the inlet pipe 4 on the pump 3 to draw sulfate solution from the sulfate solution tank 1. The sulfate solution is then passed through the outlet pipe 5 into the three-way pipe 6. The two hoses on the three-way pipe 6 pass the sulfate solution into the two spray pipes 7. The multiple nozzles 9 on the two spray pipes 7 spray the sulfate solution downwards onto the concrete block on the support plate 12 to test the sulfate resistance of the concrete block.

[0029] Then stop spraying sulfate solution, control the electric telescopic rod 81 to retract and drive the strip plate 82 to move downward. The strip plate 82 will drive the two lower inclined panels 83 to move downward. The two lower inclined panels 83 will squeeze the two upper inclined panels 88 to move forward and backward respectively. The two upper inclined panels 88 will drive the two spray pipes 7 to move forward and backward respectively. At the same time, the strip plate 82 will move downward through the multiple drying lamps 11 on the moving plate 10. The multiple drying lamps 11 move downward and approach the concrete block on the support plate 12. The multiple drying lamps 11 are activated to heat and dry the concrete block. After the concrete block is dried, control the electric telescopic rod 81 to extend and reset, drive the multiple drying lamps 11 to move upward and reset, and move the two spray pipes 7 to move towards the middle and reset. Control the pump 3 to draw sulfate solution again and spray sulfate solution on the concrete block again. Repeat this process to inspect the concrete block.

[0030] When the concrete blocks are sprayed with sulfate solution, the excess sulfate solution will flow to the bottom of the test chamber 2. The sulfate solution will be collected and returned to the sulfate solution tank 1 for reuse through two drain pipes 13. At the same time, the returned sulfate solution will be filtered through the filter plate 14. While controlling the movement of the upper inclined panel 88, the upper inclined panel 88 will drive the brush plate 17 to move through the connecting plate 15 and the fixing plate 16. When each pair of concrete blocks is dried, the brush plate 17 will scrape and clean the filter plate 14 once.

Claims

1. An apparatus for testing the resistance of concrete to sulphate attack, comprising a sulphate solution tank (1) and a test tank (2) fixedly connected to the top of the sulphate solution tank (1) by a support rod, characterized in that: The front and rear of the inner cavity of the test box (2) are fixedly connected with a support plate (12), the top of the sulfate solution tank (1) is fixedly connected with a liquid pumping pump (3), the liquid inlet end of the liquid pumping pump (3) is communicated with a liquid inlet pipe (4), one end of the liquid inlet pipe (4) penetrates through the sulfate solution tank (1) and extends to the inside of the sulfate solution tank (1), the liquid outlet end of the liquid pumping pump (3) is communicated with a liquid outlet pipe (5), one end of the liquid outlet pipe (5) penetrates through the test box (2) and extends to the inside of the test box (2), the end of the liquid outlet pipe (5) is communicated with a three-way pipe (6), the two ends of the three-way pipe (6) are both communicated with a liquid spraying pipe (7) through a hose, a plurality of spray heads (9) are communicated below the surface of the liquid spraying pipe (7), one side of the support plate (12) is provided with a pushing mechanism (8), the upper sides of the two liquid spraying pipes (7) are provided with a moving plate (10) matched with the pushing mechanism (8), a plurality of drying lamps (11) are fixedly installed on one side of the moving plate (10).

2. Apparatus for testing the resistance of concrete to sulphate attack according to claim 1, characterised in that: The pushing mechanism (8) comprises an electric telescopic rod (81), the electric telescopic rod (81) is fixedly connected to one side of the inner cavity of the test box (2) through a connecting block, the telescopic end of the electric telescopic rod (81) is fixedly connected with a strip-shaped plate (82) through a fixed block, the top of the strip-shaped plate (82) is fixedly connected with the moving plate (10), the front and rear of the strip-shaped plate (82) are both fixedly connected with a lower inclined surface plate (83), and the front and rear of the inner cavity of the test box (2) are both fixedly connected with a sliding cylinder (84).

3. Apparatus for testing the resistance of concrete to sulphate attack according to claim 2, characterised in that: The inner cavity of the sliding cylinder (84) is slidably connected with a sliding rod (85), one end of the sliding rod (85) is fixedly connected with a moving block (87), and a spring (86) is fixedly connected between the other end of the sliding rod (85) and the side of the inner cavity of the sliding cylinder (84) away from the moving block (87). The top of the moving block (87) is fixedly connected with an upper inclined surface plate (88) matched with the lower inclined surface plate (83).

4. The apparatus for testing the resistance of concrete to sulphate attack according to claim 1, characterized in that: The front and rear of the top of the sulfate solution tank (1) are both communicated with a liquid discharge pipe (13), one end of the liquid discharge pipe (13) penetrates through the test box (2) and extends to the inside of the test box (2), and a filter plate (14) is fixedly installed above the inner surface of the liquid discharge pipe (13).

5. The apparatus for testing the resistance of concrete to sulphate attack according to claim 3, characterized in that: The bottom of the moving block (87) is fixedly connected with a connecting plate (15), and the bottom of the connecting plate (15) is fixedly connected with a fixed plate (16).

6. The apparatus for testing the resistance of concrete to sulphate attack according to claim 5, characterized in that: One side of the fixed plate (16) is fixedly connected with a brush plate (17).

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