A concrete quality detection system and detection method for water conservancy construction

Abstract

The present invention relates to the field of concrete detection technology, specifically to a concrete quality detection system and detection method for water conservancy construction. The concrete quality detection system for water conservancy construction includes a frame, a top plate is installed on the top of the frame, an impact detection mechanism and a group of vertically arranged hydraulic push rods are installed inside the top plate, a pressure platform is arranged below the top plate, the bottom ends of a group of hydraulic push rods are fixedly connected to the pressure platform, the outer wall of the pressure platform is slidably connected to a protective box assembly, a support platform is installed on the inner wall of the frame and at a position corresponding to the bottom of the protective box assembly, and a material receiving seat is arranged above the support platform. The beneficial effect of the present invention is that through the setting of the excitation motor, the permeability detection mechanism and the impact detection mechanism, the device can efficiently complete the detection operation of concrete for water conservancy construction, and the device integrates the functions of pressure resistance detection, water permeability monitoring, instantaneous bending resistance detection, and surface curing degree detection during detection.

Description

Technical Field

[0001] The invention relates to the technical field of concrete detection, in particular to a concrete quality detection system and a detection method for water conservancy construction. Background Art

[0002] Water is a precious resource that is indispensable to human production and life. Water resources can be rationally used, regulated and distributed through the construction of water conservancy projects to meet the needs of people's life and production for water resources. Water conservancy projects require the construction of different types of hydraulic structures such as bridges, dams, dikes, spillways, sluices, water inlets, channels, etc. During the construction of water conservancy projects, the quality of the concrete used must meet certain goals, and the quality of the concrete will be tested for the completed water conservancy projects.

[0003] In the prior art, a patent document with publication number CN114136692A discloses a concrete quality detection device for water conservancy project construction. The detection device is provided with a sampling mechanism, which is installed on a slide rail on the top of a frame. The sampling mechanism is slidable, and the sampling mechanism drives the sampling head of the sampling mechanism to move to detect concrete of different thicknesses. However, the detection function and detection method of the above-mentioned detection device are relatively single and cannot be applied to the detection needs of multiple scenarios. Based on this, the present invention provides a concrete quality detection system and detection method for water conservancy construction to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0004] In view of the technical problems existing in the prior art, the present invention provides a concrete quality detection system and a detection method for water conservancy construction to solve the problem that the detection functions and detection methods of the existing detection devices are relatively single and cannot be applied to the detection needs of multiple scenarios.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a concrete quality detection system for water conservancy construction, comprising a frame, a top plate is installed on the top of the frame, an impact detection mechanism and a group of vertically arranged hydraulic push rods are respectively installed inside the top plate, a pressure platform is arranged below the top plate, the bottom ends of a group of hydraulic push rods are fixedly connected to the pressure platform, a protective box assembly is slidably connected to the outer wall of the pressure platform, a support platform is installed on the inner wall of the frame and at a position corresponding to the position below the protective box assembly, a material receiving seat is arranged above the support platform, a standard test piece is movably placed on the surface of the material receiving seat, a group of pressure sensors are installed between the relative surfaces of the material receiving seat and the support platform, a bending measurement square hole is fixedly opened inside the material receiving seat, a sealing plate is slidably connected to the inner wall of the bending measurement square hole, a group of vertically arranged lifting push rods are fixedly installed on the bottom surface of the sealing plate, the peripheral side surfaces of a group of lifting push rods are fixedly connected to the support platform, an exciting motor is installed on the bottom surface of the support platform, and a seepage detection mechanism connected to the frame is installed on the top surface of the pressure platform.

[0006] The beneficial effects of the present invention are:

[0007] Through the setting of the exciting motor, the permeability detection mechanism and the impact detection mechanism, the device can efficiently complete the detection work of concrete for water conservancy construction, and the device integrates the pressure resistance detection, water permeability monitoring, instantaneous bending resistance detection and surface curing degree detection functions during detection. Through the realization of the above-mentioned integrated functions, on the one hand, the detection forms of the device are effectively increased, and on the other hand, the detection function of the device is effectively improved. Through the realization of the above-mentioned technical effects, the device is suitable for the detection requirements of multiple scenarios.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the protective box assembly includes a transparent protective box mounted on the outside of the pressure platform and two brackets fixedly connected to the pressure platform. The inner walls of the two brackets are slidably connected to a group of vertical guide rods, and the bottom end of each group of guide rods is fixedly connected to the transparent protective box.

[0010] Furthermore, the cross-section of the guide rod is T-shaped, the transparent protective box is made of tempered glass, the transparent protective box is a hollow box-shaped structure with openings at both ends, the inner cavity shape of the transparent protective box is adapted to the shape of the pressure platform, the shape of the standard specimen is the same as the shape of the pressure platform, and a sealing ring is fixedly provided on the bottom surface of the transparent protective box.

[0011] The beneficial effect of adopting the above further scheme is that when in use, the movement range of the transparent protective box can be effectively limited by the T-shaped structure setting of the guide rod, and the sealing ring setting at the bottom of the transparent protective box can effectively ensure the sealing of the connection between the transparent protective box and the material receiving seat.

[0012] Furthermore, the impact detection mechanism comprises an impact detection hole opened in the pressure application platform, a pressure charging pump and a pressure storage tank installed on the back of the frame, a group of vertically arranged impact cylinders and an impact platform arranged below the impact cylinder, one end of the air outlet of the pressure charging pump is fixedly connected with the pressure storage tank through a connecting pipe, a one-way air outlet valve and an air pressure probe are installed in the connecting pipe in sequence, one end of the air outlet of the pressure storage tank is fixedly connected with a pressure relief pipe, an electromagnetic exhaust valve is fixedly installed in the pressure relief pipe, a piston seat is slidably connected to the inner wall of the impact cylinder, a pressure inlet chamber is fixedly arranged between the top surface of the piston seat and the relative surface of the impact cylinder, the top surface of the pressure inlet chamber is fixedly connected with the pressure relief pipe, an impact rod is fixedly installed on the bottom surface of the piston seat, the bottom end of the impact rod is fixedly connected to the impact platform, a reset spring is sleeved on the peripheral side surface of the impact rod and at a position corresponding to the inside of the impact cylinder, and an impact head is clamped on the bottom surface of the impact platform.

[0013] The beneficial effect of adopting the above further scheme is that when impact resistance monitoring operations are required, the pressure storage tank is used for gas storage operations, and then the impact power source supply operations are carried out. During impact detection, different pressure storage thresholds of the pressure storage tank can be set according to the impact force requirements. When the air pressure inside the pressure storage tank reaches the set value, the electromagnetic exhaust valve instantly releases the air pressure inside the pressure storage tank.

[0014] Furthermore, the cross section of the impact head is "V"-shaped, and the length of the impact head is 0.8 times to 0.9 times the length of the punching hole.

[0015] Furthermore, the seepage detection mechanism includes a liquid storage tank installed on the back of the frame, a water inlet pipe fixed inside the top plate and vertically arranged, and a group of regularly distributed pressure measuring cylinders. A pump body and a liquid replenishing pipe are fixedly installed on the top of the liquid storage tank. One end of the water outlet of the pump body is fixedly connected to the water inlet pipe through a pipeline. The bottom end of the water inlet pipe is fixedly connected to a bellows. The top end of each of the pressure measuring cylinders is fixedly connected to the bellows. The bottom end of the pressure measuring cylinder is fixedly connected to the pressure platform. The inner wall of the pressure measuring cylinder is fixedly installed with a valve and a water pressure probe in sequence from top to bottom, and a sealing gasket is fixedly provided on the bottom surface of the pressure measuring cylinder.

[0016] Furthermore, the width of the sealing plate is 0.8 to 0.9 times the width of the standard specimen, and the length of the sealing plate is 1.2 to 1.3 times the length of the standard specimen.

[0017] Furthermore, a single chip microcomputer is fixedly mounted on the top of the frame, and ports of the single chip microcomputer are electrically connected to the pressure sensor and the air pressure probe respectively.

[0018] The detection method of the concrete quality detection system for water conservancy construction includes the following steps:

[0019] SS001, pressure test, in the initial state, the impact rod and the hydraulic push rod are reset to the initial height, the sealing plate is inserted into the bending test square hole, and the top surface of the sealing plate is flush with the top surface of the material receiving seat, and the standard test piece to be tested is placed at the designated mark position on the material receiving seat. After the standard test piece is placed, the transparent protective box is fully supported by the material receiving seat by controlling the hydraulic push rod. When the hydraulic push rod moves downward to a specified degree and keeps the pressure platform and the standard test piece at a set distance difference, the pressure sensor is zeroed. During the testing operation, the hydraulic push rod drives the pressure platform to continue to move downward slowly. After the pressure platform moves downward, it contacts the standard test piece and gradually applies pressure to the standard test piece. During the pressure application process of the hydraulic push rod, the pressure sensor monitors the bearing pressure of the standard test piece in real time. During the pressure application process of the hydraulic push rod, when the standard test piece produces a sudden change value, the single-chip microcomputer records the peak value of the pressure sensor. At this time, the peak value of the pressure sensor is the pressure resistance value of the standard test piece. After the test is completed, the standard test piece after the test is removed and the material receiving seat, the sealing plate and the transparent protective box are cleaned;

[0020] SS002, water permeability monitoring. After SS001 is laid out, a new standard test piece is prepared. After the standard test piece is laid out at the designated mark position, the transparent protective box is fully supported by the material holder through the control of the hydraulic push rod. When the hydraulic push rod moves downward to a designated degree and keeps a set distance difference between the pressure platform and the standard test piece, the pressure sensor is zeroed. Subsequently, the hydraulic push rod drives the bottom surface of the pressure platform to fully fit the top surface of the standard test piece. When the monitoring value of the pressure sensor reaches the set threshold, the hydraulic push rod stops working, the water pressure probe is pre-zeroed, and the bottom end of the pressure measuring tube is blocked by the standard test piece. Subsequently, the pump body synchronously fills the pressure measuring tube with water. After the set time of filling, the valve is closed and the initial monitoring value of the water pressure probe in the pressure measuring tube is recorded. Subsequently, the standard test piece is kept in this state. The single-chip microcomputer collects the monitoring data of the water pressure probe at a set period to monitor the water pressure change in the pressure measuring tube. By monitoring the water pressure change data, the anti-seepage performance of the standard test piece is monitored.

[0021] SS003, instantaneous bending resistance test, after step SS002, prepare a new standard test piece, reset the impact rod and hydraulic push rod to the initial height, completely disengage the sealing plate from the bending test square hole, and place the standard test piece to be tested at the designated mark position on the material holder. After the standard test piece is placed, the transparent protective box is fully supported by the material holder by controlling the hydraulic push rod. When the hydraulic push rod moves downward to a specified degree and keeps the set distance difference between the pressure platform and the standard test piece, the pressure sensor and the air pressure probe are calibrated to zero. Subsequently, the pressure pump continuously sends pressure to the inside of the pressure storage tank. When the storage tank is When the air pressure inside the pressure tank reaches the set value, the electromagnetic exhaust valve at the pressure relief pipe opens instantaneously, and the gas inside the pressure storage tank is instantly sent into the impact cylinder. After the impact cylinder is instantly filled with air, the impact table and the impact head generate instantaneous impact force. When the surface of the standard specimen does not change, the pressure storage tank is repeatedly stored and released. When the pressure storage tank is repeatedly stored, the monitoring threshold of the air pressure probe is increased, thereby continuously increasing the instantaneous impact force of the impact rod. When the standard specimen breaks, the feedback value of the air pressure probe and the peak value of the pressure sensor are recorded, and then the instantaneous impact strength data of the standard specimen is measured;

[0022] SS004, surface curing degree detection. After step SS003, a new standard test piece is prepared. The impact rod and the hydraulic push rod are reset to the initial height. The sealing plate is completely out of contact with the bending test square hole. The standard test piece to be tested is placed at the designated marked position on the material receiving seat. After the standard test piece is placed, the transparent protective box is fully supported by the material receiving seat by controlling the hydraulic push rod. When the hydraulic push rod moves downward to a specified extent and keeps a set distance difference between the pressure application platform and the standard test piece, the pressure sensor and the air pressure probe are calibrated to zero. Subsequently, the electromagnetic exhaust valve is opened, and the charging pump continuously delivers pressure to the inside of the pressure storage tank. The impact head acts on the standard test piece. When the monitoring value of the pressure sensor reaches the set value, the vibration motor works for the set time. After the vibration motor works for the set time, the integrity of the connection between the standard test piece and the impact head is detected, and then the surface curing degree of the standard test piece is auxiliary detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the concrete quality detection system for water conservancy construction of the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the structure from another angle;

[0025] Figure 3 It is a structural schematic diagram of the hydraulic push rod and the standard test piece of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the impact tube and the pressure relief tube of the present invention;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the impact cylinder of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the hydraulic push rod of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the pressure charging pump and the pressure storage tank of the present invention.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Frame; 2. Top plate; 3. Hydraulic push rod; 4. Pressure platform; 5. Support platform; 6. Material holder; 7. Standard test piece; 8. Pressure sensor; 9. Sealing plate; 10. Lifting push rod; 11. Excitation motor; 12. Transparent protective box; 13. Bracket; 14. Guide rod; 15. Punching hole; 16. Charging pump; 17. Connecting pipe; 18. Pressure storage tank; 19. Pressure relief pipe; 20. Piston seat; 21. Impact cylinder; 22. Impact platform; 23. Solenoid exhaust valve; 24. Impact rod; 25. Reset spring; 26. Air pressure probe; 27. Impact head; 28. Liquid storage tank; 29. ​​Water inlet pipe; 30. Pressure measuring cylinder; 31. Pump body; 32. Bellows; 33. Valve; 34. Water pressure probe. Implementation

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] The present invention provides the following preferred embodiments

[0034] like Figure 1-7 As shown, the concrete quality detection system for water conservancy construction includes a frame 1, a top plate 2 is installed on the top of the frame 1, an impact detection mechanism and a group of vertically arranged hydraulic push rods 3 are installed inside the top plate 2, a pressure platform 4 is arranged below the top plate 2, and the bottom ends of the group of hydraulic push rods 3 are fixedly connected to the pressure platform 4;

[0035] The outer wall of the pressure platform 4 is slidably connected with a protective box assembly;

[0036] The protective box assembly includes a transparent protective box 12 mounted on the outside of the pressure platform 4 and two brackets 13 fixedly connected to the pressure platform 4. The inner walls of the two brackets 13 are slidably connected with a group of vertical guide rods 14, and the bottom end of each group of guide rods 14 is fixedly connected to the transparent protective box 12.

[0037] The cross section of the guide rod 14 is T-shaped, the transparent protective box 12 is made of tempered glass, the transparent protective box 12 is a hollow box-shaped structure with openings at both ends, the inner cavity shape of the transparent protective box 12 is adapted to the shape of the pressure platform 4, the shape of the standard specimen 7 is the same as the shape of the pressure platform 4, and a sealing ring is fixedly provided on the bottom surface of the transparent protective box 12.

[0038] When in use, the T-shaped structure of the guide rod 14 can effectively limit the movement range of the transparent protective box 12, and the sealing ring at the bottom of the transparent protective box 12 can effectively ensure the sealing of the connection between the transparent protective box 12 and the material receiving seat 6;

[0039] A support platform 5 is installed on the inner wall of the frame 1 and at a position corresponding to the bottom of the protective box assembly, and a material receiving seat 6 is arranged above the support platform 5. A standard test piece 7 is movably placed on the surface of the material receiving seat 6, and a group of pressure sensors 8 are installed between the relative surfaces of the material receiving seat 6 and the support platform 5. A bending square hole is fixedly opened inside the material receiving seat 6, and a sealing plate 9 is slidably connected to the inner wall of the bending square hole. A group of vertically arranged lifting push rods 10 are fixedly installed on the bottom surface of the sealing plate 9, and the surrounding side surfaces of the group of lifting push rods 10 are fixedly connected to the support platform 5, an exciting motor 11 is installed on the bottom surface of the support platform 5, and a permeability detection mechanism connected to the frame 1 is installed on the top surface of the pressure platform 4.

[0040] The impact detection mechanism includes an impact detection hole 15 opened inside the pressure platform 4, a charging pump 16 and a pressure storage tank 18 installed on the back of the frame 1, a group of vertically arranged impact cylinders 21 and an impact platform 22 arranged below the impact cylinder 21. One end of the air outlet of the charging pump 16 is fixedly connected to the pressure storage tank 18 through a connecting pipe 17. A one-way air outlet valve and an air pressure probe 26 are installed in the connecting pipe 17 in sequence. One end of the air outlet of the pressure storage tank 18 is fixedly connected to a pressure relief pipe 19. An electromagnetic exhaust valve 23 is fixedly installed inside the pressure relief pipe 19. The inner wall of the impact cylinder 21 A piston seat 20 is slidably connected, and a pressure inlet chamber is fixedly arranged between the top surface of the piston seat 20 and the opposite surface of the impact cylinder 21. The top surface of the pressure inlet chamber is fixedly connected to the pressure relief tube 19. An impact rod 24 is fixedly installed on the bottom surface of the piston seat 20. The bottom end of the impact rod 24 is fixedly connected to the impact platform 22. A return spring 25 is sleeved on the circumferential side surface of the impact rod 24 and at a position corresponding to the inside of the impact cylinder 21. An impact head 27 is clamped on the bottom surface of the impact platform 22. The cross section of the impact head 27 is "V"-shaped, and the length of the impact head 27 is 0.8 times the length of the punching hole 15.

[0041] When impact resistance monitoring operations are required, the pressure storage tank 18 is used to store gas, and then to supply the impact power source. During impact detection, different pressure storage thresholds of the pressure storage tank 18 can be set according to the impact force requirements. When the air pressure inside the pressure storage tank 18 reaches the set value, the electromagnetic exhaust valve 23 releases the air pressure inside the pressure storage tank 18 instantly.

[0042] The seepage detection mechanism includes a liquid storage tank 28 installed on the back of the frame 1, a water inlet pipe 29 fixed inside the top plate 2 and vertically arranged, and a group of regularly distributed pressure measuring cylinders 30. A pump body 31 and a liquid replenishing tube are fixedly installed on the top of the liquid storage tank 28. One end of the water outlet of the pump body 31 is fixedly connected to the water inlet pipe 29 through a pipeline. The bottom end of the water inlet pipe 29 is fixedly connected to a bellows 32. The top end of each pressure measuring cylinder 30 is fixedly connected to the bellows 32, and the bottom end of the pressure measuring cylinder 30 is fixedly connected to the pressure platform 4. The inner wall of the pressure measuring cylinder 30 is fixedly installed with a valve 33 and a water pressure probe 34 from top to bottom, and a sealing gasket is fixedly provided on the bottom surface of the pressure measuring cylinder 30.

[0043] The width of the sealing plate 9 is 0.8 times the width of the standard specimen 7, and the length of the sealing plate 9 is 1.2 times the length of the standard specimen 7. By setting the length of the sealing plate 9, the middle part of the standard specimen 7 can be kept in a suspended state when the bending resistance test is carried out.

[0044] A single chip microcomputer is fixedly mounted on the top of the frame 1 , and ports of the single chip microcomputer are electrically connected to the pressure sensor 8 and the air pressure probe 26 respectively.

[0045] The detection method of the concrete quality detection system for water conservancy construction includes the following steps:

[0046] SS001, pressure test, in the initial state, the impact rod 24 and the hydraulic push rod 3 are reset to the initial height, the sealing plate 9 is inserted into the bending square hole, and the top surface of the sealing plate 9 is flush with the top surface of the material holder 6, and the standard test piece 7 to be tested is placed at the designated mark position on the material holder 6. After the standard test piece 7 is placed, the transparent protective box 12 is fully supported by the material holder 6 by controlling the hydraulic push rod 3. When the hydraulic push rod 3 moves downward to a designated degree and keeps the pressure table 4 and the standard test piece 7 at a set distance difference, the pressure sensor 8 is calibrated to zero. During the detection operation, the hydraulic push rod 3 drives the pressure platform 4 to continue to move down slowly. After the pressure platform 4 moves down, it contacts the standard test piece 7 and gradually applies pressure to the standard test piece 7. During the pressure application process of the hydraulic push rod 3, the pressure sensor 8 monitors the bearing pressure of the standard test piece 7 in real time. During the pressure application process of the hydraulic push rod 3, when the standard test piece 7 produces a sudden change value, the single chip microcomputer records the peak value of the pressure sensor 8. At this time, the peak value of the pressure sensor 8 is the withstand pressure value of the standard test piece 7. After the test is completed, the standard test piece 7 after the test is removed and the material receiving seat 6, the sealing plate 9 and the transparent protective box 12 are cleaned;

[0047] SS002, water permeability monitoring, after SS001 is laid out, a new standard test piece 7 is prepared, and after the standard test piece 7 is laid out at the designated mark position, the transparent protective box 12 is fully supported by the material holder 6 by controlling the hydraulic push rod 3. When the hydraulic push rod 3 moves downward to a designated degree and keeps the pressure platform 4 and the standard test piece 7 at a set distance difference, the pressure sensor 8 is calibrated to zero. Subsequently, the hydraulic push rod 3 drives the bottom surface of the pressure platform 4 to completely fit the top surface of the standard test piece 7. When the monitoring value of the pressure sensor 8 reaches the set threshold After the value is reached, the hydraulic push rod 3 stops working, the water pressure probe 34 is pre-calibrated to zero, and the bottom end of the pressure measuring cylinder 30 is blocked by the standard test piece 7. Then, the pump body 31 synchronously fills water into the pressure measuring cylinder 30. After the water filling time is set, the valve 33 is closed and the initial monitoring value of the water pressure probe 34 in the pressure measuring cylinder 30 is recorded. Then, the standard test piece 7 is kept in this state, and the single chip collects the monitoring data of the water pressure probe 34 at a set period to monitor the water pressure change in the pressure measuring cylinder 30. By monitoring the water pressure change data, the anti-water seepage performance of the standard test piece 7 is monitored;

[0048] SS003, instantaneous bending resistance test, after step SS002, a new standard test piece 7 is prepared, the impact rod 24 and the hydraulic push rod 3 are reset to the initial height, the sealing plate 9 is completely out of contact with the bending test square hole, and the standard test piece 7 to be tested is placed at the designated mark position on the material receiving seat 6. After the standard test piece 7 is placed, the transparent protective box 12 is completely supported by the material receiving seat 6 by controlling the hydraulic push rod 3. When the hydraulic push rod 3 moves downward to a designated degree and keeps the pressure table 4 and the standard test piece 7 at a set distance difference, the pressure sensor 8 and the air pressure probe 26 are calibrated to zero, and then the pressure pump 16 continuously sends pressure to the inside of the pressure storage tank 18. When the pressure storage tank 18 After the internal air pressure reaches the set value, the electromagnetic exhaust valve 23 at the pressure relief pipe 19 is instantly opened, and the gas inside the pressure storage tank 18 is instantly sent to the impact cylinder 21. After the impact cylinder 21 is instantly filled with air, the impact table 22 and the impact head 27 generate instantaneous impact force. When the surface of the standard specimen 7 does not change, the pressure storage tank 18 repeats the pressure storage and pressure release process. When the pressure storage tank 18 repeats the pressure storage, the monitoring threshold of the air pressure probe 26 is increased, thereby continuously improving the instantaneous impact force of the impact rod 24. When the standard specimen 7 breaks, the feedback value of the air pressure probe 26 and the peak value of the pressure sensor 8 are recorded, and then the instantaneous impact strength data of the standard specimen 7 is measured;

[0049] SS004, surface curing degree detection. After step SS003, a new standard test piece 7 is prepared, the impact rod 24 and the hydraulic push rod 3 are reset to the initial height, the sealing plate 9 is completely out of contact with the bending test square hole, and the standard test piece 7 to be tested is placed at the designated marking position on the material receiving seat 6. After the standard test piece 7 is placed, the transparent protective box 12 is fully supported by the material receiving seat 6 by controlling the hydraulic push rod 3. When the hydraulic push rod 3 moves downward to a designated degree and keeps the pressure platform 4 and the standard test piece 7 at a set distance difference, the pressure sensor 8 and the air pressure probe 26 are zeroed. Subsequently, the electromagnetic exhaust valve 23 is opened, and the charging pump 16 continuously delivers pressure to the interior of the pressure storage tank 18. The impact head 27 acts on the standard test piece 7. When the monitoring value of the pressure sensor 8 reaches the set value, the excitation motor 11 works for a set time. After the excitation motor 11 works for a set time, the integrity of the connection between the standard test piece 7 and the impact head 27 is detected, and then the surface curing degree of the standard test piece 7 is auxiliary detected.

[0050] In summary: The beneficial effects of the present invention are specifically embodied in

[0051] Through the setting of the exciting motor, the permeability detection mechanism and the impact detection mechanism, the device can efficiently complete the detection work of concrete for water conservancy construction, and the device integrates the pressure resistance detection, water permeability monitoring, instantaneous bending resistance detection and surface curing degree detection functions during detection. Through the realization of the above-mentioned integrated functions, on the one hand, the detection forms of the device are effectively increased, and on the other hand, the detection function of the device is effectively improved. Through the realization of the above-mentioned technical effects, the device is suitable for the detection requirements of multiple scenarios.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete quality detection system for water conservancy construction, comprising a frame (1), characterized in that: A top plate (2) is installed on the top of the frame (1), an impact detection mechanism and a group of vertically arranged hydraulic push rods (3) are installed inside the top plate (2), a pressure platform (4) is arranged below the top plate (2), the bottom ends of the group of hydraulic push rods (3) are fixedly connected to the pressure platform (4), and the outer wall of the pressure platform (4) is slidably connected to a protective box assembly; A support platform (5) is installed on the inner wall of the frame (1) and at a position corresponding to the bottom of the protective box assembly, a material receiving seat (6) is arranged above the support platform (5), a standard test piece (7) is movably placed on the surface of the material receiving seat (6), and a group of pressure sensors (8) are installed between the opposing surfaces of the material receiving seat (6) and the support platform (5); A curved square hole is fixedly opened inside the material receiving seat (6), a sealing plate (9) is slidably connected to the inner wall of the curved square hole, a group of vertically arranged lifting push rods (10) are fixedly installed on the bottom surface of the sealing plate (9), and the peripheral side surfaces of the group of lifting push rods (10) are fixedly connected to the support platform (5); The bottom surface of the support platform (5) is equipped with an exciting motor (11), and the top surface of the pressure platform (4) is equipped with a permeability detection mechanism connected to the frame (1); the protective box assembly comprises a transparent protective box (12) sleeved on the outside of the pressure platform (4) and two brackets (13) fixedly connected to the pressure platform (4), and the inner walls of the two brackets (13) are slidably connected with a group of vertical guide rods (14), and the bottom end of each group of the guide rods (14) is fixedly connected to the transparent protective box (12); the cross section of the guide rods (14) The transparent protective box (12) is T-shaped, the transparent protective box (12) is made of tempered glass, the transparent protective box (12) is a hollow box-shaped structure with two ends open, the inner cavity shape of the transparent protective box (12) is adapted to the shape of the pressure platform (4), the shape of the standard test piece (7) is the same as the shape of the pressure platform (4), and a sealing ring is fixedly provided on the bottom surface of the transparent protective box (12); the impact detection mechanism comprises an impact detection hole (15) opened inside the pressure platform (4), a charging pump (16) installed on the back of the frame (1) and a pressure storage tank (1 8), a group of vertically arranged impact cylinders (21) and an impact platform (22) arranged below the impact cylinder (21), one end of the air outlet of the charging pump (16) is fixedly connected to the pressure storage tank (18) through a connecting pipe (17), a one-way air outlet valve and an air pressure probe (26) are installed in the connecting pipe (17) in sequence, one end of the air outlet of the pressure storage tank (18) is fixedly connected to a pressure relief pipe (19), an electromagnetic exhaust valve (23) is fixedly installed in the pressure relief pipe (19), and the inner wall of the impact cylinder (21) is slidably connected to the inner wall of the impact cylinder (21) A piston seat (20) is provided, a pressure inlet chamber is fixedly arranged between the top surface of the piston seat (20) and the opposite surface of the impact cylinder (21), the top surface of the pressure inlet chamber is fixedly connected to the pressure relief tube (19), an impact rod (24) is fixedly installed on the bottom surface of the piston seat (20), the bottom end of the impact rod (24) is fixedly connected to the impact platform (22), a return spring (25) is sleeved on the peripheral side surface of the impact rod (24) and at a position corresponding to the inside of the impact cylinder (21), and an impact head (27) is clamped on the bottom surface of the impact platform (22); The seepage detection mechanism comprises a liquid storage tank (28) installed on the back of the frame (1), a water inlet pipe (29) fixed inside the top plate (2) and vertically arranged, and a group of regularly distributed pressure measuring tubes (30). A pump body (31) and a liquid replenishing pipe are fixedly installed on the top of the liquid storage tank (28). One end of the water outlet of the pump body (31) is fixedly connected to the water inlet pipe (29) through a pipeline. The bottom end of the water inlet pipe (29) is fixedly connected to a bellows (32). The top end of each of the pressure measuring tubes (30) is fixedly connected to the bellows (32). The bottom end of the pressure measuring tube (30) is fixedly connected to the pressure platform (4). The inner wall of the pressure measuring tube (30) is fixedly installed with a valve (33) and a water pressure probe (34) in sequence from top to bottom. The bottom surface of the pressure measuring tube (30) is fixedly provided with a sealing gasket.

2. The concrete quality detection system for water conservancy construction according to claim 1 is characterized in that: The cross section of the impact head (27) is in a "V" shape, and the length of the impact head (27) is 0.8 to 0.9 times the length of the punching hole (15).

3. The concrete quality detection system for water conservancy construction according to claim 1 is characterized in that: The width of the sealing plate (9) is 0.8 to 0.9 times the width of the standard test piece (7), and the length of the sealing plate (9) is 1.2 to 1.3 times the length of the standard test piece (7).

4. The concrete quality detection system for water conservancy construction according to claim 3 is characterized in that: A single-chip microcomputer is fixedly mounted on the top of the frame (1), and ports of the single-chip microcomputer are electrically connected to the pressure sensor (8) and the air pressure probe (26) respectively.

5. The detection method of the concrete quality detection system for water conservancy construction according to any one of claims 1 to 4, characterized in that: The following steps are involved: SS001, pressure resistance test, in the initial state, the impact rod (24) and the hydraulic push rod (3) are reset to the initial height, the sealing plate (9) is inserted into the bending test square hole, and the top surface of the sealing plate (9) is flush with the top surface of the material receiving seat (6), and the standard test piece (7) to be tested is placed at the designated mark position on the material receiving seat (6). After the standard test piece (7) is placed, the transparent protective box (12) is fully supported by the material receiving seat (6) by controlling the hydraulic push rod (3). When the hydraulic push rod (3) moves downward to a designated degree and keeps the pressure table (4) and the standard test piece (7) at a set distance difference, the pressure sensor (8) is calibrated to zero. During the test operation, the hydraulic push rod (3) ) drives the pressure platform (4) to continue to move downward at a slow speed. After the pressure platform (4) moves downward, it contacts the standard test piece (7) and gradually applies pressure to the standard test piece (7). During the pressure application process of the hydraulic push rod (3), the pressure sensor (8) monitors the bearing pressure of the standard test piece (7) in real time. During the pressure application process of the hydraulic push rod (3), when the standard test piece (7) produces a sudden change value, the single-chip microcomputer records the peak value of the pressure sensor (8). At this time, the peak value of the pressure sensor (8) is the withstand pressure value of the standard test piece (7). After the test is completed, the standard test piece (7) after the test is removed and the material receiving seat (6), the sealing plate (9) and the transparent protective box (12) are cleaned; SS002, water permeability monitoring, after SS001 is laid out, a new standard test piece (7) is prepared, and after the standard test piece (7) is laid out at the designated mark position, the transparent protective box (12) is fully supported by the material receiving seat (6) by controlling the hydraulic push rod (3). When the hydraulic push rod (3) moves downward to a designated degree and keeps the pressure platform (4) and the standard test piece (7) at a set distance difference, the pressure sensor (8) is calibrated to zero. Subsequently, the hydraulic push rod (3) drives the bottom surface of the pressure platform (4) to completely fit the top surface of the standard test piece (7). When the monitoring value of the pressure sensor (8) reaches the set value, the pressure sensor (8) is zeroed. After reaching the threshold, the hydraulic push rod (3) stops working, the water pressure probe (34) is pre-calibrated to zero, and the bottom end of the pressure measuring tube (30) is blocked by the standard test piece (7). Subsequently, the pump body (31) synchronously fills the pressure measuring tube (30) with water. After the water filling time is set, the valve (33) is closed and the initial monitoring value of the water pressure probe (34) in the pressure measuring tube (30) is recorded. Subsequently, the standard test piece (7) is kept in this state, and the single chip microcomputer collects the monitoring data of the water pressure probe (34) at a set period to monitor the water pressure change in the pressure measuring tube (30). By monitoring the water pressure change data, the water seepage prevention performance of the standard test piece (7) is monitored; SS003, instantaneous bending resistance test, after step SS002, a new standard test piece (7) is prepared, the impact rod (24) and the hydraulic push rod (3) are reset to the initial height, the sealing plate (9) is completely out of contact with the bending test square hole, and the standard test piece (7) to be tested is placed at the designated mark position on the material receiving seat (6). After the standard test piece (7) is placed, the transparent protective box (12) is completely supported by the material receiving seat (6) by controlling the hydraulic push rod (3). When the hydraulic push rod (3) moves downward to a designated degree and keeps the pressure application platform (4) and the standard test piece (7) at a set distance difference, the pressure sensor (8) and the air pressure probe (26) are calibrated to zero, and then the pressure pump (16) continuously sends pressure to the inside of the pressure storage tank (18). When the pressure storage tank (1 8) After the internal air pressure reaches the set value, the electromagnetic exhaust valve (23) at the pressure relief pipe (19) is instantly opened, and the gas inside the pressure storage tank (18) is instantly sent to the impact cylinder (21). After the impact cylinder (21) is instantly filled with air, the impact table (22) and the impact head (27) generate instantaneous impact force. When the surface of the standard test piece (7) does not change, the pressure storage tank (18) is repeatedly stored and released. When the pressure storage tank (18) repeatedly stores pressure, the monitoring threshold of the air pressure probe (26) is gradually increased, thereby continuously increasing the instantaneous impact force of the impact rod (24). When the standard test piece (7) breaks, the feedback value of the air pressure probe (26) and the peak value of the pressure sensor (8) are recorded, and then the instantaneous impact strength data of the standard test piece (7) is measured; SS004, surface curing degree detection, after step SS003, a new standard test piece (7) is prepared, the impact rod (24) and the hydraulic push rod (3) are reset to the initial height, the sealing plate (9) is completely out of contact with the bending test square hole, and the standard test piece (7) to be tested is placed at the designated mark position on the material receiving seat (6). After the standard test piece (7) is placed, the transparent protective box (12) is completely supported by the material receiving seat (6) by controlling the hydraulic push rod (3). When the hydraulic push rod (3) moves downward to a designated degree and causes the pressure table (4) to contact the standard test piece (7), the pressure table (4) is moved downward to a designated degree and causes the pressure table (4) to contact the standard test piece (7). ) while maintaining the set distance difference, the pressure sensor (8) and the air pressure probe (26) are calibrated to zero, and then the electromagnetic exhaust valve (23) is opened, the pressure pump (16) continuously delivers pressure to the inside of the pressure storage tank (18), and the impact head (27) acts on the standard test piece (7). When the monitoring value of the pressure sensor (8) reaches the set value, the vibration motor (11) works for the set time. After the vibration motor (11) works for the set time, the integrity of the connection between the standard test piece (7) and the impact head (27) is detected, and then the surface curing degree of the standard test piece (7) is assisted to be detected.

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