Equipment for detecting water permeability resistance of self-repairing concrete

Abstract

The invention discloses self-repairing concrete water permeability resistance detection equipment which comprises a bottom plate, a support is arranged at the top of the bottom plate, a connecting shaft is arranged on the support, an arm rod is rotationally connected to the connecting shaft, a negative pressure detection box is rotationally connected to the end, away from the connecting shaft, of the arm rod, and a plurality of detection cylinders are arranged on the periphery of the negative pressure detection box. A transmission wheel is sleeved on the connecting shaft, one side of the transmission wheel is fixedly connected with a driving disc with different axes, and a water supply transmission shaft is connected on the arm rod in a sliding mode. According to the device, the support, the connecting shaft, the driving disc in the eccentric state, the water supply guide shaft, the detection plug disc, the arm rod and the detection cylinder are arranged, when the arm rod is in the hovering state, under the action of gravity, the water supply guide shaft drives the detection plug disc to move in the detection cylinder to extrude water in cooperation with the shape of the driving disc; according to the arrangement, the water penetration resistance of the test piece in the detection cylinder can be tested without providing test water pressure by any independent energy consumption equipment, and the water penetration resistance testing device has the advantages of energy conservation and constant pressure testing.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete material penetration detection, and in particular to a self-repairing concrete water penetration resistance detection device. Background Art

[0002] Concrete is widely used in the construction field because of its good mechanical properties and durability. Cracks will appear in concrete during use. When cracks appear, special materials need to be used to fill and repair them. The quality of the repaired concrete is usually judged by its water penetration resistance. Therefore, in order to test the performance of special materials for concrete repair, water penetration resistance test equipment after concrete crack repair is introduced.

[0003] At present, the basic structure of the experimental equipment for concrete specimens mainly includes a test cylinder, and then a water stop ring is installed in the test cylinder, the specimen is placed above the water stop ring in the test cylinder, a certain pressure of water is injected above the specimen in the test cylinder and the pressure is maintained, and then the space below the specimen in the test cylinder is observed to see if there is water. If there is water, the water penetration resistance of the repaired specimen is poor, otherwise it is better. However, this kind of test equipment still has shortcomings when used: 1. A pressure device (boosting pump) is used to continuously output a certain pressure of water into the test cylinder. Due to the long cycle of the water penetration resistance test, this continuous pressure supply test method will increase the cost investment; 2. The sealing of the contact between the specimen placed in the test cylinder and the water stop ring is unreliable. When the test cylinder is pressurized, water can easily pass through the sealing surface between the specimen and the water stop ring, that is, it is easy to leak, which will directly affect the accuracy of the water penetration resistance test.

[0004] To this end, the present invention proposes a self-repairing concrete water penetration resistance performance testing device. Summary of the invention

[0005] The purpose of the present invention is to solve the problems mentioned in the background technology and to propose a self-repairing concrete water penetration resistance testing device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A self-repairing concrete water penetration resistance testing device comprises a base plate, a bracket is arranged on the top of the base plate, a connecting shaft is arranged on the bracket, an arm is rotatably connected to the connecting shaft, an end of the arm away from the connecting shaft is rotatably connected to a negative pressure detection box, a plurality of detection cylinders are arranged on the outer periphery of the negative pressure detection box, a transmission wheel is sleeved on the connecting shaft, a driving disk with a different axis is fixedly connected to one side of the transmission wheel, a water supply conduction shaft is slidably connected to the arm, one end of the water supply conduction shaft is fixedly connected to a detection plug disc sealingly matched with the detection cylinder, and the other end is rollingly matched with the outer peripheral wall of the driving disk, a water pressure gauge is connected to the water supply conduction shaft, and a counterweight sliding sleeve is sleeved on the arm.

[0008] As a further description of the above technical solution:

[0009] A worm located at one side of the transmission wheel is rotatably connected to the bracket, and the worm is meshed with the outer peripheral wall of the transmission wheel.

[0010] As a further description of the above technical solution:

[0011] The arm is a tubular structure, and the water supply conduction shaft is inserted through the arm. Water channel one and water channel two are opened in the water supply conduction shaft. One end of water channel one and water channel two extend to one side of the detection plug disc. The outer peripheral wall of the water supply conduction shaft is fixedly connected to a water inlet pipe with one end connected to water channel one and a water outlet pipe with one end connected to water channel two. The water outlet pipe is connected to a water pressure gauge.

[0012] As a further description of the above technical solution:

[0013] A water pipe is arranged on the water pressure gauge, one end of the water pipe is fixedly connected to the water outlet pipe and the other end is connected to a control valve 1, and a control valve 2 is serially connected to the water inlet pipe.

[0014] As a further description of the above technical solution:

[0015] The negative pressure detection box includes a middle cylinder, the detection cylinder is arranged on the outer periphery of the middle cylinder and the axes of the two are perpendicular and intersecting, a flow hole is arranged between the middle cylinder and the detection cylinder, a sealing support ring is arranged in the fixed sleeve of the detection cylinder, both ends of the middle cylinder are fixedly connected with coaxial support shafts, and one end of the arm is fixedly connected with a gate beam whose free end is rotatably connected to the support shaft.

[0016] As a further description of the above technical solution:

[0017] One of the support shafts is a circular tube structure, a negative pressure plug disc is sleeved in the middle tube, one side of the negative pressure plug disc is fixedly connected to a transmission shaft that passes through one of the support shafts, and the outer peripheral wall of the middle tube is connected to a pressure gauge through a short pipe.

[0018] As a further description of the above technical solution:

[0019] The top of the base plate is fixedly connected to a rectangular frame located below the arm, a connecting rod is slidably connected inside the rectangular frame, a connecting shaft is slidably connected to the connecting rod, the top of the connecting shaft is hingedly connected to the bottom of the counterweight sleeve, and a lead screw that passes through and is screwed to the connecting rod is rotatably connected inside the rectangular frame.

[0020] As a further description of the above technical solution:

[0021] The bottom of the rectangular frame is fixedly connected to a column located at the corner, the bottom of the column is fixedly connected to the bottom plate, and a support plate is slidably connected to the bottom of the rectangular frame. The top of the support plate is rollingly matched with the connecting shaft and its bottom is fixedly connected to the upper end surface of the bottom plate through a lifting rod.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, by arranging a bracket, a connecting shaft, an eccentric driving disk, a water supply guide shaft, a detection plug disk, an arm and a detection tube, when the arm is in a suspended state, under the action of gravity, in conjunction with the shape of the driving disk, the water supply guide shaft drives the detection plug disk to move in the detection tube to squeeze the water body. This arrangement does not require any separate energy-consuming equipment to provide test water pressure, and can test the water penetration resistance of the test piece in the detection tube, which has the advantage of energy-saving constant pressure testing.

[0024] 2. In the present invention, a counterweight sleeve is slidably arranged on the arm. When the counterweight sleeve changes its position on the arm, the torque generated by the arm relative to the driving disk will change. When the torque increases, the test water pressure in the detection cylinder will increase, and vice versa. Therefore, this arrangement enables the present invention to have the advantage of variable pressure testing of concrete water penetration resistance, and the variable pressure control operation is convenient.

[0025] 3. In the present invention, a middle cylinder is arranged on the negative pressure detection box, a plurality of detection cylinders are arranged on the outer periphery of the middle cylinder, and a negative pressure plug disk is arranged in the middle cylinder. When the negative pressure plug disk moves, each detection cylinder can inhale air at the same time. When a test piece is placed in the detection cylinder, the test piece is adsorbed on the sealing support ring arranged in the detection cylinder. This arrangement has the function of pre-testing the air permeability of the test piece after repair, and in the subsequent water supply pressure test, there will be no leakage between the test piece and the sealing support ring, so the accuracy of the anti-water penetration performance can be improved.

[0026] 4. In the present invention, by arranging a holding frame, a lifting rod, a connecting shaft and a connecting rod, the lifting rod can be raised and lowered to control the arm to swing freely through the connecting shaft, and the arm can apply a variable load squeezing force to the test water in the detection cylinder when it swings freely. This arrangement enables the device to have the function of impact water penetration resistance test, thereby increasing the scope of application of the water penetration resistance performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a self-repairing concrete water penetration resistance testing device proposed by the present invention;

[0028] Figure 2 for Figure 1 The main view;

[0029] Figure 3 This is a schematic structural diagram of a negative pressure testing box of a self-repairing concrete water penetration resistance testing device proposed by the present invention;

[0030] Figure 4 A cross-sectional view of a water supply conduction shaft of a self-repairing concrete water permeability resistance testing device proposed by the present invention;

[0031] Figure 5 This is a state diagram of the detection plug disc of the self-repairing concrete water penetration resistance detection device proposed by the present invention after leaving the detection tube.

[0032] Legend:

[0033] 1. Bottom plate; 2. Bracket; 3. Connecting shaft; 4. Arm; 41. Door beam; 5. Negative pressure detection box; 51. Detection tube; 511. Sealing ring; 52. Middle tube; 521. Support shaft; 522. Negative pressure plug disc; 5221. Transmission shaft; 523. Short pipe; 53. Flow hole; 6. Transmission wheel; 7. Drive disc; 8. Water supply transmission shaft; 81. Waterway 1; 82. Waterway 2; 83. Water outlet pipe; 84. Water inlet pipe; 841. Control valve 2; 9. Water pressure gauge; 91. Water pipe; 911. Control valve 1; 101. Counterweight sleeve; 102. Worm; 103. Rectangular frame; 1031. Column; 104. Connecting rod; 105. Connecting shaft; 106. Lead screw; 107. Support plate; 108. Pressure gauge; 109. Detection plug disc; 120. Lifting rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-5A self-repairing concrete water penetration resistance testing device comprises a base plate 1, a bracket 2 is arranged on the top of the base plate 1, the base plate 1 plays the role of supporting the device, a connecting shaft 3 is arranged on the bracket 2, the bracket 2 is composed of two triangular plates, the connecting shaft 3 is rotatably connected between the two triangular plates, an arm 4 is rotatably connected to the connecting shaft 3, an end of the arm 4 away from the connecting shaft 3 is rotatably connected to a negative pressure detection box 5, wherein the other end of the arm 4 is fixedly connected to a door-shaped rod rotatably connected to the connecting shaft 3, this arrangement enables the arm 4 to swing up and down, the function of the negative pressure detection box 5 is to position the concrete specimen, and the arm 4 can drive the negative pressure detection box 5 to swing up and down when it swings up and down.

[0037] Specifically, a plurality of detection cylinders 51 are arranged on the outer periphery of the negative pressure detection box 5 , and one detection cylinder 51 is correspondingly placed and positioned for one concrete test piece. When the negative pressure detection box 5 rotates, the concrete test pieces thereon can be driven to be in the detection positions in turn.

[0038] Among them, a transmission wheel 6 is sleeved on the connecting shaft 3, and a driving disk 7 with a different axis is fixedly connected to one side of the transmission wheel 6. In this embodiment, there are two driving disks 7 and they are located on both sides of the transmission wheel 6. The axis of the driving disk 7 is parallel to the axis of the transmission wheel 6. A water supply conduction shaft 8 is slidably connected to the arm 4. One end of the water supply conduction shaft 8 is fixedly connected to a detection plug disk 109 that is sealed and matched with the detection tube 51, and the other end is rollingly matched with the outer peripheral wall of the driving disk 7. In specific implementation, a grooved rod can be welded to the other end of the water supply conduction shaft 8, and a roller is set at the free end of the grooved rod. The roller and the outer peripheral wall of the driving disk 7 are abutted, and the detection plug disk 109 is controlled to enter one of the detection tubes 51, and then water is injected between the test piece in the detection tube 51 and the detection plug disk 109, and then the detection plug disk 109 is controlled to squeeze the water with a certain pressure. At this time, the water penetration resistance of the currently repaired concrete test piece can be tested. The test pressure is provided by the weight of the arm 4 and the eccentric structure of the drive disk 7, that is, when the arm 4 is in a horizontal state, the outer peripheral wall of the drive disk 7 uses its eccentric structure to drive the water supply conduction shaft 8 to move axially, and this structure can provide a larger axial thrust to the water supply conduction shaft 8, and the axial thrust has better stability, that is, the water pressure in the current detection cylinder 51 is stable, and the power source for detection comes from the dead weight of the arm 4, the test piece, and the negative pressure detection box 5 itself, without the need for other power output equipment (such as continuous operation of the booster pump to ensure water pressure), thereby having the advantage of energy-saving testing.

[0039] Among them, a worm 102 located on one side of the transmission wheel 6 is rotatably connected to the bracket 2, and the worm 102 is meshed with the outer peripheral wall of the transmission wheel 6. The transmission wheel 6 is a worm gear structure. When the worm 102 rotates, it drives the transmission wheel 6 to rotate. In specific implementation, a suspension rotatably connected to the worm 102 can be welded on one side of the bracket 2, and then an adjusting motor is installed under the suspension. The output shaft of the adjusting motor is fixedly connected to the worm 102, so as to control the rotation of the worm 102.

[0040] Furthermore, a water pressure gauge 9 is connected to the water supply conduction shaft 8, and the water pressure gauge 9 is communicated with the inner cavity of the detection tube 51 where the detection plug disc 109 is located, so as to obtain the test water pressure between the test piece and the detection plug disc 109. A counterweight sleeve 101 is sleeved on the arm 4. The function of the counterweight sleeve 101 is to adjust the test torque, and then adjust the size of the detection pressure. The detection pressure can be adjusted by sliding the counterweight sleeve 101.

[0041] In this embodiment, the arm 4 is a tubular structure, the water supply conduction shaft 8 is inserted through the arm 4, the water supply conduction shaft 8 and the arm 4 are slidably connected, a water channel 1 81 and a water channel 2 82 are opened in the water supply conduction shaft 8, one end of the water channel 1 81 and the water channel 2 82 are extended to one side of the detection plug 109, and the outer peripheral wall of the water supply conduction shaft 8 is fixedly connected to a water inlet pipe 84 with one end connected to the water channel 1 81 and a water outlet pipe 83 with one end connected to the water channel 2 82. It is connected to the water pressure gauge 9. When in use, the water inlet pipe 84 is connected to the external low-pressure water pump through a pipeline. After water enters the water inlet pipe 84, the water will enter the waterway 1 81, and then flow into the detection cylinder 51 where the detection plug disc 109 is located. After the water in the detection cylinder 51 is filled, it will enter the waterway 2 82, and then be discharged through the water outlet pipe 83. This arrangement has the function of facilitating the complete discharge of air between the test piece and the detection plug disc 109, thereby preventing air from affecting the detection pressure.

[0042] Furthermore, the water pressure gauge 9 is provided with a water pipe 91, one end of the water pipe 91 is fixedly connected to the water outlet pipe 83 and the other end is connected to a control valve 1 911, and a control valve 2 841 is connected in series to the water inlet pipe 84. When the control valve 1 911 and the control valve 2 841 are closed, and the control detection plug 109 squeezes the water body, the reading of the water pressure gauge 9 increases, forming an anti-water penetration pressure test state.

[0043] In this embodiment, the negative pressure detection box 5 includes a middle cylinder 52, and the detection cylinder 51 is arranged on the outer periphery of the middle cylinder 52 and the axes of the two are perpendicular and intersecting. A flow hole 53 is arranged between the middle cylinder 52 and the detection cylinder 51, and a sealing ring 511 is fixedly sleeved in the detection cylinder 51. The function of the sealing ring 511 is to position and seal the test piece. For example, a disc-shaped concrete test piece is placed in the detection cylinder 51, and its disc surface will contact the sealing rubber pad on the ring surface of the sealing ring 511. At this time, the space on both sides of the disc test piece in the detection cylinder 51 is in a blocked and isolated state, and the water between the test piece and the detection plug disk 109 will not leak from the joint between the sealing ring 511 and the test piece after being squeezed. Both ends of the middle cylinder 52 are fixedly connected with coaxial support shafts 521, and one end of the arm 4 is fixedly connected with a gate beam 41 whose free end is rotatably connected to the support shaft 521. When in use, a control motor can be installed on one side of the gate beam 41, and the output shaft of the control motor is fixedly connected to the adjacent support shaft 521. The control motor provides driving force for the rotation of the middle cylinder 52. When the middle cylinder 52 rotates, different detection cylinders 51 and detection plug discs 109 can be switched for combined testing.

[0044] Furthermore, one of the support shafts 521 is a circular tube structure, and a negative pressure plug disc 522 is sleeved in the middle tube 52. One side of the negative pressure plug disc 522 is fixedly connected to a transmission shaft 5221 that penetrates and is sleeved in one of the support shafts 521. When in use, a concrete test piece is placed in each detection tube 51. When the transmission shaft 5221 moves outward, the negative pressure plug disc 522 slides in the middle tube 52. At this time, a negative pressure is formed in the middle tube 52. The negative pressure will adsorb each test piece on the sealing ring 511. This setting enables the device to perform an air permeability test on the test piece itself and realize the primary penetration screening function. At the same time, it can also improve the sealing degree of the contact between the test piece and the sealing ring 511, and avoid water leakage from the contact position between the test piece and the sealing ring 511, which affects the water penetration test. Among them, the outer peripheral wall of the middle tube 52 is connected to a barometer 108 through a short pipe 523. The function of the barometer 108 is to detect the size of the air pressure in the middle tube 52. When in use, an electric telescopic rod or a cylinder can be installed on the other side of the door beam 41, and the output shaft of the electric telescopic rod or the cylinder and the transmission shaft 5221 are fixedly connected to provide driving force for the movement of the negative pressure plug disc 522.

[0045] When conducting the water penetration resistance test, by observing the downward swing amplitude of the arm 4, when the downward swing amplitude of the arm 4 is too large, the test piece in the detection tube 51 is water-permeable, otherwise the test piece is water-impermeable. By adjusting the test torque, the water permeability performance of the test piece under different test pressures can be obtained.

[0046] In this embodiment, a rectangular frame 103 located below the arm 4 is fixedly connected to the top of the bottom plate 1, and a connecting rod 104 is slidably connected in the rectangular frame 103. In a specific implementation, sliders can be welded at both ends of the connecting rod 104, and then sliding grooves connected to the sliders are opened on both sides of the rectangular frame 103. A connecting shaft 105 is slidably connected to the connecting rod 104 up and down. In a specific implementation, a guide sleeve sleeved on the outside of the connecting shaft 105 can be intersected in the middle of the connecting rod 104, and the top of the connecting shaft 105 and the counterweight sleeve 1 01 is hingedly connected at the bottom, and when the connecting rod 104 is controlled to slide, the counterweight sleeve 101 can be driven to slide and shift on the arm 4 through the connecting shaft 105, wherein a lead screw 106 that is screwed through and connected to the connecting rod 104 is rotatably connected in the rectangular frame 103. During specific implementation, the lead screw 106 and the above-mentioned guide sleeve are screwed through and connected, and when the lead screw 106 rotates, it can drive the connecting rod 104 to move. When in use, a servo motor can be installed on one side of the rectangular frame 103, and the output shaft of the servo motor is fixedly connected to one end of the lead screw 106.

[0047] Example 2

[0048] See also Figure 1 and Figure 2 , which is different from Example 1 in that a column 1031 located at a corner is fixedly connected to the bottom of the rectangular frame 103, and the bottom of the column 1031 is fixedly connected to the bottom plate 1, and a support plate 107 is slidably connected to the bottom of the rectangular frame 103. In specific implementation, a connecting plate can be welded on the periphery of the support plate 107, and then a limiting guide sleeve arranged on the column 1031 is welded on the connecting plate. The top of the support plate 107 is rollingly matched with the connecting shaft 105 and its bottom is fixedly connected to the upper end surface of the bottom plate 1 through a lifting rod 120. In specific implementation, a roller can be installed at the bottom of the connecting shaft 105, and the roller is in contact with the top of the support plate 107. The lifting rod 120 is a cylinder or an electric push rod, and its function is to control the support plate 107. 7 Rapid lifting and lowering, this setting enables the arm 4 to form a downward swing impact force, the size of which is determined by the amplitude of the upward swing of the arm 4, that is, the lifting rod 120 pushes the connecting shaft 105 to move upward and drives the arm 4 to swing upward. At this time, the water pressure gauge 9 is in a state of zero pressure, and then the lifting rod is quickly controlled to drive the support plate 107 to descend. At this time, the arm 4 will swing downward by its own weight, and the water supply conduction shaft 8 will be subjected to an axial impact force, which will cause the detection plug 109 to impact and squeeze the water body, and the pressure value of the water pressure gauge 9 will increase instantly, and at the same time will be higher than the state of the normal pressure test. This setting enables the equipment to have an impact water penetration resistance test function, which is convenient for obtaining the water penetration resistance performance of concrete under various working conditions.

[0049] Working principle: 1. Loading, control the arm 4 to be in a horizontal state, then control the transmission wheel 6 to rotate and drive the drive disc 7 to leave the water supply conduction shaft 8, control the water supply conduction shaft 8 to slide so that the detection plug disc 109 leaves the detection tube 51, and then put different types of concrete specimens to be tested in each detection tube 51, so that the specimen and the corresponding sealing support ring 511 fit together, and then control the transmission shaft 5221 to move outward, the negative pressure plug disc 522 moves outward, and the middle tube 52 has negative pressure. The negative pressure is introduced into each detection tube 51 through the flow hole 53. When the specimen is airtight, each specimen is adsorbed on the sealing support ring 511, and the barometer 108 displays the negative pressure value. At this time, the loading operation of each specimen is completed.

[0050] Second, water is applied to the test tube 51, and the control drive disk 7 is rotated, the water supply transmission shaft 8 is pushed to move axially, and the detection plug disk 109 enters the corresponding detection tube 51, and then the control valve 1 911 and the control valve 2 841 are opened to pass water into the waterway 1 81. When the water fills the space between the test piece in the current detection tube 51 and the detection plug disk 109, the control valve 1 911 and the control valve 2 841 are closed, and then the arm 4 is released. The arm 4 will swing down under the weight of itself and the object it bears. At the same time, the detection plug disk 109 squeezes the water under the restriction of the roller and the drive disk 7, and the water pressure gauge 9 shows positive pressure. At this time, the detection tube 51 containing water performs pressure water penetration resistance test on the test piece inside. When the arm 4 swings down, the water penetration resistance of the test piece is poor, otherwise it is good.

[0051] 3. Variable pressure test: the control screw 106 rotates the connecting rod 104 to be driven to slide along the rectangular frame 103, and then the counterweight sleeve 101 is driven to slide on the water supply conduction shaft 8 through the connecting shaft 105. At this time, the torque of the entire arm 4 can be adjusted, and then the pressure value of the penetration test in the detection tube 51 can be adjusted to realize the detection of variable pressure anti-water penetration performance.

[0052] Fourth, impact test, start the lifting rod 120 to make it reciprocate up and down with a certain stroke and frequency. When the lifting rod 120 rises, the support plate 107 will be pushed up, and then the connecting shaft 105 rises, and then the counterweight sleeve 101 drives the arm 4 to swing up. At this time, the value displayed on the water pressure gauge 9 decreases, and then the lifting rod 120 is controlled to drop quickly. The arm 4 will swing down under the action of gravity, and the water supply conduction shaft 8 will generate an instantaneous increased axial impact force driven by the shape of the driving disk 7. The impact force makes the detection plug disk 109 exert a large impact force on the water in the detection tube 51. Such a cycle can be used to perform an impact water penetration resistance test on the test piece.

[0053] 5. Part replacement experiment. When the test piece in the above-mentioned single detection cylinder 51 is tested, the arm rod 4 is controlled to suspend, and then the driving disk 7 is controlled to rotate in the opposite direction, and then the water supply conduction shaft 8 is pulled outward to make the detection plug disk 109 leave the current detection cylinder 51, and the support shaft 521 is controlled to rotate to drive the negative pressure detection box 5 to rotate, so that the adjacent detection cylinder 51 moves to a position opposite to the detection plug disk 109, and then the water penetration resistance performance test of the current test piece is carried out according to the above operations.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-repairing concrete water penetration resistance testing device, comprising a base plate (1), characterized in that: A bracket (2) is arranged on the top of the base plate (1), a connecting shaft (3) is arranged on the bracket (2), an arm (4) is rotatably connected to the connecting shaft (3), an end of the arm (4) away from the connecting shaft (3) is rotatably connected to a negative pressure detection box (5), a plurality of detection cylinders (51) are arranged on the outer periphery of the negative pressure detection box (5), a transmission wheel (6) is sleeved on the connecting shaft (3), a driving disk (7) with a different axis is fixedly connected to one side of the transmission wheel (6), a water supply conduction shaft (8) is slidably connected to the arm (4), one end of the water supply conduction shaft (8) is fixedly connected to a detection plug disk (109) which is sealed with the detection cylinder (51), and the other end is rollingly matched with the outer peripheral wall of the driving disk (7), a water pressure gauge (9) is connected to the water supply conduction shaft (8), and a counterweight sliding sleeve (101) is sleeved on the arm (4).

2. The self-repairing concrete water penetration resistance testing device according to claim 1 is characterized in that: The bracket (2) is rotatably connected to a worm (102) located on one side of the transmission wheel (6), and the worm (102) is meshed with the outer peripheral wall of the transmission wheel (6).

3. The self-repairing concrete water penetration resistance testing device according to claim 1 is characterized in that: The arm (4) is a tubular structure. The water supply conduction shaft (8) is inserted through and sleeved in the arm (4). A water channel 1 (81) and a water channel 2 (82) are provided in the water supply conduction shaft (8). One end of the water channel 1 (81) and the water channel 2 (82) extend to one side of the detection plug disc (109). An outer peripheral wall of the water supply conduction shaft (8) is fixedly connected to a water inlet pipe (84) having one end connected to the water channel 1 (81) and a water outlet pipe (83) having one end connected to the water channel 2 (82). The water outlet pipe (83) is connected to a water pressure gauge (9).

4. The self-repairing concrete water penetration resistance testing device according to claim 3 is characterized in that: The water pressure gauge (9) is provided with a water pipe (91), one end of which is fixedly connected to the water outlet pipe (83) and the other end of which is connected to a control valve 1 (911), and the water inlet pipe (84) is connected in series with a control valve 2 (841).

5. The self-repairing concrete water penetration resistance testing device according to claim 1 is characterized in that: The negative pressure detection box (5) comprises a middle cylinder (52), the detection cylinder (51) is arranged on the outer periphery of the middle cylinder (52) and the axes of the two are perpendicular and intersecting, a flow hole (53) is arranged between the middle cylinder (52) and the detection cylinder (51), a sealing support ring (511) is fixedly sleeved inside the detection cylinder (51), both ends of the middle cylinder (52) are fixedly connected to a coaxial support shaft (521), and one end of the arm (4) is fixedly connected to a door beam (41) whose free end is rotatably connected to the support shaft (521).

6. The self-repairing concrete water penetration resistance testing device according to claim 5 is characterized in that: One of the support shafts (521) is a circular tube structure, and a negative pressure plug disc (522) is sleeved inside the middle tube (52). One side of the negative pressure plug disc (522) is fixedly connected to a transmission shaft (5221) that passes through and is sleeved inside one of the support shafts (521). The outer peripheral wall of the middle tube (52) is connected to a pressure gauge (108) via a short pipe (523).

7. The self-repairing concrete water penetration resistance testing device according to claim 1 is characterized in that: The top of the base plate (1) is fixedly connected to a rectangular frame (103) located below the arm (4); a connecting rod (104) is slidably connected inside the rectangular frame (103); a connecting shaft (105) is slidably connected to the connecting rod (104); the top of the connecting shaft (105) is hingedly connected to the bottom of the counterweight sleeve (101); a lead screw (106) is rotatably connected inside the rectangular frame (103) and is screwed through the connecting rod (104).

8. The self-repairing concrete water penetration resistance testing device according to claim 7 is characterized in that: The bottom of the rectangular frame (103) is fixedly connected to a column (1031) located at a corner, the bottom of the column (1031) is fixedly connected to the bottom plate (1), and a support plate (107) is slidably connected up and down below the rectangular frame (103), the top of the support plate (107) is rollingly matched with the connecting shaft (105), and the bottom is fixedly connected to the upper end surface of the bottom plate (1) through a lifting rod.

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