A concrete self-healing performance test device

Abstract

The present invention relates to the technical field of measuring or analyzing materials by means of determining the chemical or physical properties of the materials, and discloses a concrete self-healing performance test device, which solves the problem that the concrete test piece needs to be repeatedly moved, which is inconvenient for actual operation. The device comprises a base, two movable seats are arranged above the base, and the base is equipped with a lifting and rotating structure for driving the two movable seats to lift and rotate. A first arc plate is arranged on one side where the two movable seats are close to each other, and a second arc plate is arranged above the first arc plate; a position adjustment component for driving the first arc plate and the second arc plate to move is arranged on the movable seat, and a sealing unit is arranged on the first arc plate and the second arc plate, and a pressure block is arranged between the first arc plate and the second arc plate; there is no need to repeatedly move a cylindrical concrete test piece, so it is convenient to perform a self-healing performance test on the cylindrical concrete test piece, thereby improving convenience.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring or analyzing materials by means of determining the chemical or physical properties of the materials, and in particular is a concrete self-healing performance test device. Background Art

[0002] With the continuous increase in the amount of construction projects and the amount of concrete used, the number of engineering accidents involving cracks caused by concrete shrinkage cracking has continued to increase, and most of them occurred in large and medium-sized cities and large and medium-sized projects with a large application area of ​​concrete, seriously affecting the safety and service life of concrete buildings. Research on the shrinkage cracking properties of concrete, especially high-performance concrete, is critical to solving problems such as concrete cracking;

[0003] However, it is worth considering that the generation of cracks in concrete specimens is controlled by the crack construction method in the existing technology, and then the staff needs to transfer the concrete specimens to the self-healing performance test mechanism, and the concrete specimens need to be moved repeatedly, which is not convenient for actual operation.

[0004] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a concrete self-healing performance test device, which effectively solves the problem that the concrete test piece needs to be repeatedly moved in the above background technology, which is inconvenient for actual operation.

[0006] To achieve the above object, the present invention provides the following technical solutions: a concrete self-healing performance test device, comprising a base, two movable seats are arranged above the base, the base is equipped with a lifting and rotating structure for driving the two movable seats to lift and rotate, a first arc plate is arranged on each side of the two movable seats close to each other, and a second arc plate is arranged above the first arc plate;

[0007] The movable seat is equipped with a position adjustment component for driving the first curved plate and the second curved plate to move, the first curved plate and the second curved plate are both provided with sealing units, a pressure block is provided between the first curved plate and the second curved plate, the movable seat is equipped with a crack construction mechanism for driving the pressure block to press the cylindrical concrete specimen, and a self-healing performance test mechanism is installed on the top of the base.

[0008] Preferably, the self-healing performance testing mechanism includes a collecting box fixedly mounted on the top of the base, a first liquid outlet pipe is provided at the bottom end of the collecting box, and a valve is provided on the first liquid outlet pipe, a storage box is provided above the collecting box, and both the collecting box and the storage box are hollow structures with an opening at the top, a plurality of support columns for supporting cylindrical concrete specimens are fixedly connected in the collecting box, a second liquid outlet pipe is provided at the bottom end of the storage box, a sealing ring is provided at the external fixed sleeve of the second liquid outlet pipe, a plurality of pressing columns for pressing the cylindrical concrete specimens are fixedly connected to the bottom of the sealing ring, at least one bracket is fixedly mounted on the base, a first hydraulic telescopic rod is fixedly connected to the top of the bracket, and the telescopic end of the first hydraulic telescopic rod and the storage box are fixedly connected via a first connecting plate.

[0009] Preferably, the position adjustment assembly includes a support shell arranged on the side of the movable seat facing the first curved plate, the support shell is a hollow structure with openings at the top and the bottom, the movable seat is fixedly installed with at least one second hydraulic telescopic rod, the telescopic end of the second hydraulic telescopic rod is fixedly connected to the support shell, two movable blocks are arranged in the support shell, the first curved plate and the second curved plate are fixedly connected with first prisms on the side facing the support shell, two rectangular holes are provided on the inner wall of the support shell, the two first prisms respectively penetrate the two rectangular holes and the two movable blocks, one end of the first prism facing the movable seat is fixedly connected with the support plate, the support plate and the movable block are connected by a number of tension springs, and the support shell is installed with a damping drive structure for driving the two movable blocks to move in different directions.

[0010] Preferably, the damping drive structure includes two first rotating shafts rotatably installed in the supporting shell, the outer fixed sleeve of the first rotating shaft is provided with a first gear, the movable seat is fixedly provided with two first tooth plates, and the first tooth plates and the first gear are meshed with each other, the second rotating shaft is symmetrically provided with second rotating shafts at both ends of the first rotating shaft, and the second rotating shaft and the supporting shell are rotatably connected, the second rotating shaft is fixedly connected with a first damping disk at one end facing the first rotating shaft, the two ends of the first rotating shaft are respectively fixedly connected with second damping disks, and the second damping disk is in contact with the first damping disk, the outer fixed sleeve of the second rotating shaft is provided with a second gear, the two sides of the movable block are respectively fixedly connected with fixed frames, the fixed frame is fixedly provided with a second tooth plate meshing with the second gear, and at least one guide bar passes through the movable block, and the two ends of the guide bar are respectively fixedly connected to the inner wall of the supporting shell through the second connecting plate.

[0011] Preferably, the sealing unit comprises sealing pads fixedly mounted on the inner walls of the first arc plate and the second arc plate respectively, and the top end of the first arc plate and the bottom end of the second arc plate are both fixedly connected with sealing strips.

[0012] Preferably, the crack construction mechanism includes a fixed block arranged in a supporting shell, and first avoidance holes matched with the fixed blocks are symmetrically provided on the inner walls on both sides of the supporting shell, and a slide groove is provided on the side where the two fixed blocks are close to each other, and a sliding seat is provided in the slide groove, and one side of the sliding seat and the inner wall of the slide groove are connected by a plurality of compression springs, and the other side of the sliding seat is fixedly connected to the pressure block, and a second prism is fixedly connected to the side of the fixed block away from the pressure block, and a second avoidance hole matched with the second prism is provided on the movable seat, and the second prism passes through the second avoidance hole, and a supporting sleeve is provided on the outer sliding sleeve of the second prism, and the supporting sleeve and the movable seat are rotatably connected, and a protective shell is fixedly connected to the side where the two movable seats are away from each other, and the protective shell is equipped with a self-rotating drive matched with the supporting sleeve, and the protective shell is equipped with a translation member for driving the second prism to move horizontally.

[0013] Preferably, the translation member includes a support seat rotatably mounted on an end of the second prism away from the fixed block, and the support seat is located in the protective shell, a guide plate passes through the support seat, and the guide plate is fixedly connected to the inner wall of the protective shell, the top and bottom of the support seat are respectively fixedly connected with third tooth plates, a third rotating shaft is provided on the side of the third tooth plate away from the support seat, the third rotating shaft is rotatably connected to the protective shell, a third gear is provided on the external fixed sleeve of the third rotating shaft, and two fourth tooth plates are fixedly connected to the side of the support shell facing the protective shell, the fourth tooth plate and the third tooth plate both pass through the movable seat, and the fourth tooth plate and the third tooth plate are respectively meshed with the corresponding third gear.

[0014] Preferably, the self-rotating drive includes a fourth gear fixedly mounted on the outside of the supporting sleeve, a fifth tooth plate passes through the protective shell, the fifth tooth plate is meshed with the fourth gear, a third hydraulic telescopic rod is fixedly connected to the outer wall of the protective shell, and the third hydraulic telescopic rod is fixedly connected to the fifth tooth plate.

[0015] Preferably, the lifting and rotating structure includes a lifting ring arranged above the base, at least one fourth hydraulic telescopic rod is fixedly connected to the top of the base, the telescopic end of the fourth hydraulic telescopic rod is fixedly connected to the bottom of the lifting ring, an annular groove is provided on the top of the lifting ring, a guide ring is provided in the annular groove, and the bottoms of the two movable seats are fixedly connected to the top of the guide ring, the external fixed sleeve of the lifting ring is provided with a support ring, a plurality of positioning holes are provided on the support ring, and the movable seat is equipped with a positioning piece matching the positioning holes.

[0016] Preferably, the positioning member includes at least one supporting portion fixedly mounted on the movable seat, a positioning column passes through the supporting portion, the bottom end of the positioning column is located in the corresponding positioning hole, and the top end of the positioning column is fixedly connected to a supporting plate located above the supporting portion.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The staff places the cylindrical concrete specimen to be tested on the self-healing performance testing mechanism, and drives the pressure block to press the cylindrical concrete specimen through the crack construction mechanism to cause cracks in the cylindrical concrete specimen. After the cracks are generated, the crack construction mechanism drives the pressure block to stop pressing the cylindrical concrete specimen, and drives the first arc plate and the second arc plate to move toward the cylindrical concrete specimen respectively through the position adjustment component, and the first arc plate and the second arc plate move close to each other, and finally the first arc plate and the second arc plate are combined into a complete arc clamping plate, and the two arc clamping plates clamp the cylindrical concrete specimen, and the contact surfaces between the first arc plate, the second arc plate and the cylindrical concrete specimen are sealed by the sealing unit, and the crack flow measurement test of the cylindrical concrete specimen is carried out through the self-healing performance testing mechanism, which quantitatively reflects the degree of self-healing of concrete, and does not need to repeatedly move the cylindrical concrete specimen, which is convenient for conducting self-healing performance tests on the cylindrical concrete specimen, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 3 It is a structural schematic diagram of the movable seat of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the support shell and the protective shell cutaway of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the positional relationship between the first rotating shaft and the second rotating shaft of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the movable block of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the meshing relationship between the third tooth plate, the third gear and the fourth tooth plate of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the fixed block and the sliding seat separated from each other in the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the lifting ring and the guide ring separated according to the present invention.

[0030] In the figure: 1, base; 2, movable seat; 3, first arc plate; 4, second arc plate; 5, cylindrical concrete specimen; 6, pressure block; 7, collecting box; 8, supporting column; 9, first liquid outlet pipe; 10, storage box; 11, second liquid outlet pipe; 12, sealing ring; 13, pressing column; 14, sealing pad; 15, sealing strip; 16, bracket; 17, first hydraulic telescopic rod; 18, first connecting plate; 19, second hydraulic telescopic rod; 20, supporting shell; 21, movable block; 22, first prism; 23, rectangular hole; 24, supporting plate; 25, tension spring; 26, first rotating shaft; 27, first gear; 28, first tooth plate; 29, second rotating shaft; 30, second gear; 31, second tooth plate; 32, solid Fixed frame; 33. first damping plate; 34. second damping plate; 35. guide strip; 36. second connecting plate; 37. support plate; 38. fixed block; 39. first avoidance hole; 40. slide groove; 41. sliding seat; 42. compression spring; 43. second prism; 44. second avoidance hole; 45. support sleeve; 46. support seat; 47. guide plate; 48. third tooth plate; 49. third rotating shaft; 50. third gear; 51. fourth tooth plate; 52. fourth gear; 53. fifth tooth plate; 54. third hydraulic telescopic rod; 55. protective shell; 56. lifting ring; 57. annular groove; 58. fourth hydraulic telescopic rod; 59. guide ring; 60. support ring; 61. positioning hole; 62. support part; 63. positioning column. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1, by Figure 1 and Figure 2 The present invention comprises a base 1, two movable seats 2 are arranged above the base 1, the base 1 is equipped with a lifting and rotating structure for driving the two movable seats 2 to lift and rotate, a first arc plate 3 is arranged on the side where the two movable seats 2 are close to each other, and a second arc plate 4 is arranged above the first arc plate 3;

[0033] The movable seat 2 is equipped with a position adjustment component for driving the first curved plate 3 and the second curved plate 4 to move, the first curved plate 3 and the second curved plate 4 are both provided with a sealing unit, a pressure block 6 is provided between the first curved plate 3 and the second curved plate 4, the movable seat 2 is equipped with a crack construction mechanism for driving the pressure block 6 to press the cylindrical concrete specimen 5, and a self-healing performance test mechanism is installed on the top of the base 1; the staff places the cylindrical concrete specimen 5 to be tested on the self-healing performance test mechanism, and drives the pressure block 6 to press the cylindrical concrete specimen 5 through the crack construction mechanism to cause cracks in the cylindrical concrete specimen 5. After the cracks are generated, the crack construction mechanism drives the pressure block 6 to stop pressing the cylindrical concrete specimen 5, and through The position adjustment component drives the first arc plate 3 and the second arc plate 4 to move toward the cylindrical concrete specimen 5 respectively, and the first arc plate 3 and the second arc plate 4 move closer to each other, and finally the first arc plate 3 and the second arc plate 4 are combined into a complete arc clamping plate, and the two arc clamping plates clamp the cylindrical concrete specimen 5, and the contact surfaces between the first arc plate 3, the second arc plate 4 and the cylindrical concrete specimen 5 are sealed by the sealing unit, and the cylindrical concrete specimen 5 is tested for crack flow measurement by the self-healing performance test mechanism, which quantitatively reflects the self-healing degree of concrete, and there is no need to repeatedly move the cylindrical concrete specimen 5, which is convenient for the self-healing performance test of the cylindrical concrete specimen 5, thereby improving convenience.

[0034] Embodiment 2, based on embodiment 1, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6It is given that the self-healing performance test mechanism includes a collecting box 7 fixedly installed on the top of the base 1, a first liquid outlet pipe 9 is provided at the bottom end of the collecting box 7, and a valve is provided on the first liquid outlet pipe 9, a storage box 10 is provided above the collecting box 7, and the collecting box 7 and the storage box 10 are both hollow structures with top openings, a plurality of support columns 8 for supporting cylindrical concrete specimens 5 are fixedly connected in the collecting box 7, a second liquid outlet pipe 11 is provided at the bottom end of the storage box 10, a sealing ring 12 is provided on the outer fixed sleeve of the second liquid outlet pipe 11, and a plurality of pressing columns 13 for pressing the cylindrical concrete specimens 5 are fixedly connected to the bottom of the sealing ring 12, and at least one bracket 16 is fixedly installed on the base 1, and a first hydraulic pressure rod 13 is fixedly connected to the top of the bracket 16. The telescopic rod 17, the telescopic end of the first hydraulic telescopic rod 17 and the storage box 10 are fixedly connected through the first connecting plate 18, the position adjustment component includes a support shell 20 arranged on the side of the movable seat 2 facing the first curved plate 3, the support shell 20 is a cavity structure with both the top and the bottom ends open, the movable seat 2 is fixedly installed with at least one second hydraulic telescopic rod 19, the telescopic end of the second hydraulic telescopic rod 19 is fixedly connected to the support shell 20, two movable blocks 21 are arranged in the support shell 20, the first curved plate 3 and the second curved plate 4 are fixedly connected to the side of the support shell 20 with a first prism 22, two rectangular holes 23 are provided on the inner wall of the support shell 20, and the two first prisms 22 respectively penetrate the two rectangular holes 23 and the two movable blocks 21, a first prism 22 is fixedly connected to a support plate 24 at one end facing the movable seat 2, the support plate 24 and the movable block 21 are connected by a plurality of tension springs 25, the support shell 20 is installed with a damping drive structure for driving the two movable blocks 21 to move in different directions, the damping drive structure includes two first rotating shafts 26 rotatably installed in the support shell 20, the outer fixed sleeve of the first rotating shaft 26 is provided with a first gear 27, the movable seat 2 is fixedly installed with two first tooth plates 28, and the first tooth plates 28 and the first gear 27 are meshed, the two ends of the first rotating shaft 26 are symmetrically provided with second rotating shafts 29, and the second rotating shaft 29 is rotatably connected to the support shell 20, and the second rotating shaft 29 is fixedly connected to a first damping disk at one end facing the first rotating shaft 26 33, the two ends of the first rotating shaft 26 are respectively fixedly connected with the second damping disc 34, and the second damping disc 34 is in contact with the first damping disc 33, the outer fixed sleeve of the second rotating shaft 29 is provided with a second gear 30, the two sides of the movable block 21 are respectively fixedly connected with the fixing frame 32, the fixing frame 32 is fixedly installed with the second gear plate 31 meshing with the second gear 30, at least one guide bar 35 runs through the movable block 21, and the two ends of the guide bar 35 are respectively fixedly connected to the inner wall of the support shell 20 through the second connecting plate 36, and the sealing unit includes a sealing gasket 14 fixedly installed on the inner wall of the first arc plate 3 and the second arc plate 4, and the top end of the first arc plate 3 and the bottom end of the second arc plate 4 are both fixedly connected with the sealing strip 15;

[0035] The staff placed the cylindrical concrete specimen 5 above the collecting box 7, supported the bottom of the cylindrical concrete specimen 5 by the supporting column 8, and drove the first connecting plate 18 and the storage box 10 downward by the first hydraulic telescopic rod 17. The storage box 10 drove the sealing ring 12 and the pressing column 13 downward through the second liquid outlet pipe 11. The bottom end of the pressing column 13 pressed on the top of the cylindrical concrete specimen 5, so that the cylindrical concrete specimen 5 was initially fixed above the base 1. The supporting shell 20 was driven to move toward the cylindrical concrete specimen 5 by the second hydraulic telescopic rod 19. The supporting shell 20 drove the first gear 27 to roll on the first tooth plate 28. The first gear The wheel 27 and the first rotating shaft 26 rotate, the first rotating shaft 26 drives the second damping plate 34 to rotate, the second damping plate 34 drives the first damping plate 33, the second rotating shaft 29 and the second gear 30 to rotate through friction, the second gear 30 drives the fixing frame 32 and the movable block 21 to slide relative to the guide strip 35 and the supporting shell 20 through the second toothed plate 31, the first curved plate 3 and the second curved plate 4 move closer, and at the same time, the crack construction mechanism drives the pressure block 6 to no longer be located between the first curved plate 3 and the second curved plate 4. When the sealing strip 15 on the first curved plate 3 and the sealing strip 15 on the second curved plate 4 are in close contact, as the first gear 27 and the first rotating shaft 26 are held The second damping disc 34 cannot drive the first damping disc 33 to rotate by friction, and the first arc plate 3 and the second arc plate 4 are combined into a complete arc clamping plate. When the sealing gaskets 14 on the first arc plate 3 and the second arc plate 4 are in contact with the cylindrical concrete specimen 5 respectively, as the support shell 20 continues to move, the support shell 20 drives the movable block 21 to slide relative to the first prism 22, and the distance between the movable block 21 and the support plate 24 increases. The tension spring 25 is in a tensioned state, and the tension spring 25 applies a pulling force to the support plate 24 and the first prism 22, so that the sealing gaskets 14 on the first arc plate 3 and the second arc plate 4 are respectively in contact with the cylindrical concrete specimen 5. The concrete specimen 5 is tightly fitted, and the contact surfaces between the cylindrical concrete specimen 5, the first arc plate 3 and the second arc plate 4 are sealed by the design of the sealing gasket 14 and the sealing strip 15. At the same time, the sealing gaskets 14 on the two second arc plates 4 are in contact with the outer walls of the sealing ring 12 respectively. The staff pours water into the storage box 10, and the water enters between the cylindrical concrete specimen 5 and the sealing ring 12 through the second liquid outlet pipe 11. The water flows into the collection box 7 through the cracks on the cylindrical concrete specimen 5. The self-healing performance of the concrete is evaluated based on the water flow rate. When the test is over, the valve on the first liquid outlet pipe 9 is opened to discharge the water in the collection box 7.

[0036] Embodiment 3, based on embodiment 2, Figure 1 , Figure 3 , Figure 7 , Figure 8 and Fig. 9It is given that the crack construction mechanism includes a fixed block 38 arranged in the support shell 20, and the inner walls on both sides of the support shell 20 are symmetrically provided with first avoidance holes 39 adapted to the fixed blocks 38, and the sides close to the two fixed blocks 38 are provided with slide grooves 40, and a sliding seat 41 is provided in the slide groove 40, and one side of the sliding seat 41 and the inner wall of the slide groove 40 are connected by a plurality of compression springs 42, and the other side of the sliding seat 41 is fixedly connected to the pressure block 6, and the side of the fixed block 38 away from the pressure block 6 is fixedly connected with a second prism 43, and the movable seat 2 is provided with a second avoidance hole 44 matched with the second prism 43, and the second prism 43 runs through the second avoidance hole 44, and the outer sliding sleeve of the second prism 43 is provided with a support sleeve 45, and the support sleeve 45 and the movable seat 2 are fixedly connected to the pressure block 6, and the second prism 43 passes .... The movable seat 2 is rotatably connected, and a protective shell 55 is fixedly connected to the side away from the two movable seats 2. The protective shell 55 is equipped with a self-rotating driver adapted to the support sleeve 45. The protective shell 55 is equipped with a translation member for driving the second prism 43 to move horizontally. The translation member includes a support seat 46 rotatably installed on the end of the second prism 43 away from the fixed block 38, and the support seat 46 is located in the protective shell 55. A guide plate 47 runs through the support seat 46, and the guide plate 47 is fixedly connected to the inner wall of the protective shell 55. The top and bottom of the support seat 46 are respectively fixedly connected with a third tooth plate 48. A third rotating shaft 49 is provided on the side of the third tooth plate 48 away from the support seat 46. The third rotating shaft 49 is rotatably connected to the protective shell 55. The third rotating shaft 49 The outer fixed sleeve is provided with a third gear 50, and two fourth tooth plates 51 are fixedly connected to the side of the support shell 20 facing the protective shell 55, the fourth tooth plate 51 and the third tooth plate 48 both penetrate the movable seat 2, and the fourth tooth plate 51 and the third tooth plate 48 are respectively meshed with the corresponding third gear 50, the self-rotation drive includes a fourth gear 52 fixedly sleeved on the outside of the support sleeve 45, a fifth tooth plate 53 is penetrated on the protective shell 55, the fifth tooth plate 53 is meshed with the fourth gear 52, a third hydraulic telescopic rod 54 is fixedly connected to the outer wall of the protective shell 55, and the third hydraulic telescopic rod 54 is fixedly connected to the fifth tooth plate 53, the lifting and rotating structure includes a lifting ring 56 arranged above the base 1, and the top of the base 1 is fixedly connected with at least one A fourth hydraulic telescopic rod 58, the telescopic end of the fourth hydraulic telescopic rod 58 is fixedly connected to the bottom of the lifting ring 56, an annular groove 57 is provided on the top of the lifting ring 56, a guide ring 59 is provided in the annular groove 57, and the bottoms of the two movable seats 2 are fixedly connected to the top of the guide ring 59, the outer fixed sleeve of the lifting ring 56 is provided with a support ring 60, a plurality of positioning holes 61 are provided on the support ring 60, and the movable seat 2 is equipped with a positioning member matched with the positioning hole 61, the positioning member includes at least one support portion 62 fixedly installed on the movable seat 2, and a positioning column 63 passes through the support portion 62, the bottom end of the positioning column 63 is located in the corresponding positioning hole 61, and the top end of the positioning column 63 is fixedly connected to the support plate 37 located above the support portion 62;

[0037] When the staff places the cylindrical concrete specimen 5 to be tested on the self-healing performance test mechanism, the fifth tooth plate 53 is driven to move by the third hydraulic telescopic rod 54, and the fifth tooth plate 53 drives the support sleeve 45 and the second prism 43 to rotate through the fourth gear 52. The second prism 43 can drive the pressure block 6 to rotate through the fixed block 38 and the sliding seat 41 to change the inclination angle of the pressure block 6. When the position of the pressure block 6 is adjusted, the support shell 20 is driven to move in the direction away from the cylindrical concrete specimen 5 by the second hydraulic telescopic rod 19, and the support shell 20 drives the fourth tooth plate 51 to move. The fourth tooth plate 51 drives the third tooth plate 48 and the support seat 46 to move toward the cylindrical concrete specimen 5 through the third gear 50, and the support seat 46 drives the second prism 43 to slide relative to the support sleeve 45, and the pressure block 6 is pressed on the cylindrical concrete specimen 5. As the second prism 43 and the fixed block 38 continue to move, the sliding seat 41 slides in the slide groove 40. , the compression spring 42 becomes shorter, and the pressure applied by the compression spring 42 to the sliding seat 41 increases, thereby controlling the pressure applied by the pressure block 6 to the cylindrical concrete specimen 5, thereby realizing the crack structure of the cylindrical concrete specimen 5, and driving the lifting ring 56 and the guide ring 59 to move in the vertical direction through the fourth hydraulic telescopic rod 58, thereby adjusting the initial height of the movable seat 2, the first arc plate 3, the second arc plate 4 and the pressure block 6, the staff drives the guide ring 59 to slide in the annular groove 57 through the movable seat 2 to change the direction of the movable seat 2, when the position adjustment of the movable seat 2 is completed, the staff drives the support plate 37 and the positioning column 63 to move, so that the positioning column 63 passes through the support portion 62, and the bottom end of the positioning column 63 is inserted into the corresponding positioning hole 61, the bottom of the support plate 37 is in contact with the top of the support portion 62, and the positioning column 63 is supported by the support plate 37, so that the movable seat 2 and the guide ring 59 are fixed relative to the lifting ring 56 and the support ring 60.

[0038] Working principle: During operation, the two movable seats 2 are driven to lift and rotate through the lifting and rotating structure, and the initial positions of the movable seats 2 and the crack construction mechanism are adjusted. The staff places the cylindrical concrete specimen 5 to be tested on the self-healing performance test mechanism, and drives the pressure block 6 to press the cylindrical concrete specimen 5 through the crack construction mechanism to cause cracks in the cylindrical concrete specimen 5. After the cracks are generated, the crack construction mechanism drives the pressure block 6 to stop pressing the cylindrical concrete specimen 5, and drives the first curved plate 3 and the second curved plate 4 to move toward the cylindrical concrete specimen 5 respectively through the position adjustment component, and the first curved plate 3 and the second curved plate 4 are driven to move toward the cylindrical concrete specimen 5 respectively ... The arc plate 3 and the second arc plate 4 move closer to each other, and finally the first arc plate 3 and the second arc plate 4 are combined into a complete arc clamping plate, and the two arc clamping plates clamp the cylindrical concrete specimen 5, and the contact surfaces between the first arc plate 3, the second arc plate 4 and the cylindrical concrete specimen 5 are sealed by the sealing unit, and the cylindrical concrete specimen 5 is tested for crack flow measurement by the self-healing performance test mechanism to quantitatively reflect the self-healing degree of concrete, and there is no need to repeatedly move the cylindrical concrete specimen 5, which is convenient for the self-healing performance test of the cylindrical concrete specimen 5, thereby improving convenience;

[0039] The staff placed the cylindrical concrete specimen 5 above the collecting box 7, supported the bottom of the cylindrical concrete specimen 5 by the supporting column 8, and drove the first connecting plate 18 and the storage box 10 downward by the first hydraulic telescopic rod 17. The storage box 10 drove the sealing ring 12 and the pressing column 13 downward through the second liquid outlet pipe 11. The bottom end of the pressing column 13 pressed on the top of the cylindrical concrete specimen 5, so that the cylindrical concrete specimen 5 was initially fixed above the base 1. The supporting shell 20 was driven to move toward the cylindrical concrete specimen 5 by the second hydraulic telescopic rod 19. The supporting shell 20 drove the first gear 27 to roll on the first tooth plate 28. The first gear The wheel 27 and the first rotating shaft 26 rotate, the first rotating shaft 26 drives the second damping plate 34 to rotate, the second damping plate 34 drives the first damping plate 33, the second rotating shaft 29 and the second gear 30 to rotate through friction, the second gear 30 drives the fixing frame 32 and the movable block 21 to slide relative to the guide strip 35 and the supporting shell 20 through the second toothed plate 31, the first curved plate 3 and the second curved plate 4 move closer, and at the same time, the crack construction mechanism drives the pressure block 6 to no longer be located between the first curved plate 3 and the second curved plate 4. When the sealing strip 15 on the first curved plate 3 and the sealing strip 15 on the second curved plate 4 are in close contact, as the first gear 27 and the first rotating shaft 26 are held The second damping disc 34 cannot drive the first damping disc 33 to rotate by friction, and the first arc plate 3 and the second arc plate 4 are combined into a complete arc clamping plate. When the sealing gaskets 14 on the first arc plate 3 and the second arc plate 4 are in contact with the cylindrical concrete specimen 5 respectively, as the support shell 20 continues to move, the support shell 20 drives the movable block 21 to slide relative to the first prism 22, and the distance between the movable block 21 and the support plate 24 increases. The tension spring 25 is in a tensioned state, and the tension spring 25 applies a pulling force to the support plate 24 and the first prism 22, so that the sealing gaskets 14 on the first arc plate 3 and the second arc plate 4 are respectively in contact with the cylindrical concrete specimen 5. The concrete specimen 5 is tightly attached. Through the design of the sealing gasket 14 and the sealing strip 15, the contact surfaces between the cylindrical concrete specimen 5, the first curved plate 3 and the second curved plate 4 are sealed. At the same time, the sealing gaskets 14 on the two second curved plates 4 are in contact with the outer walls of the sealing ring 12 respectively. The staff pours water into the storage box 10, and the water enters between the cylindrical concrete specimen 5 and the sealing ring 12 through the second liquid outlet pipe 11. The water flows into the collection box 7 through the cracks on the cylindrical concrete specimen 5. The self-healing performance of the concrete is evaluated according to the flow rate of water. When the test is over, the valve on the first liquid outlet pipe 9 is opened to discharge the water in the collection box 7.

[0040] When the staff places the cylindrical concrete specimen 5 to be tested on the self-healing performance test mechanism, the fifth tooth plate 53 is driven to move by the third hydraulic telescopic rod 54, and the fifth tooth plate 53 drives the support sleeve 45 and the second prism 43 to rotate through the fourth gear 52. The second prism 43 can drive the pressure block 6 to rotate through the fixed block 38 and the sliding seat 41 to change the inclination angle of the pressure block 6. When the position of the pressure block 6 is adjusted, the support shell 20 is driven to move in the direction away from the cylindrical concrete specimen 5 by the second hydraulic telescopic rod 19, and the support shell 20 drives the fourth tooth plate 51 to move. The fourth tooth plate 51 drives the third tooth plate 48 and the support seat 46 to move toward the cylindrical concrete specimen 5 through the third gear 50, and the support seat 46 drives the second prism 43 to slide relative to the support sleeve 45, and the pressure block 6 is pressed on the cylindrical concrete specimen 5. As the second prism 43 and the fixed block 38 continue to move, the sliding seat 41 slides in the slide groove 40. , the compression spring 42 becomes shorter, and the pressure applied by the compression spring 42 to the sliding seat 41 increases, thereby controlling the pressure applied by the pressure block 6 to the cylindrical concrete specimen 5, thereby realizing the crack structure of the cylindrical concrete specimen 5, and driving the lifting ring 56 and the guide ring 59 to move in the vertical direction through the fourth hydraulic telescopic rod 58, thereby adjusting the initial height of the movable seat 2, the first arc plate 3, the second arc plate 4 and the pressure block 6, the staff drives the guide ring 59 to slide in the annular groove 57 through the movable seat 2 to change the direction of the movable seat 2, when the position adjustment of the movable seat 2 is completed, the staff drives the support plate 37 and the positioning column 63 to move, so that the positioning column 63 passes through the support portion 62, and the bottom end of the positioning column 63 is inserted into the corresponding positioning hole 61, the bottom of the support plate 37 is in contact with the top of the support portion 62, and the positioning column 63 is supported by the support plate 37, so that the movable seat 2 and the guide ring 59 are fixed relative to the lifting ring 56 and the support ring 60.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete self-healing performance test device, comprising a base (1), characterized in that: Two movable seats (2) are arranged above the base (1); the base (1) is provided with a lifting and rotating structure for driving the two movable seats (2) to lift and rotate; a first arc plate (3) is arranged on each side of the two movable seats (2) adjacent to each other; a second arc plate (4) is arranged above the first arc plate (3); The movable seat (2) is equipped with a position adjustment component for driving the first curved plate (3) and the second curved plate (4) to move; the first curved plate (3) and the second curved plate (4) are both provided with a sealing unit; a pressure block (6) is provided between the first curved plate (3) and the second curved plate (4); the movable seat (2) is equipped with a crack construction mechanism for driving the pressure block (6) to press the cylindrical concrete specimen (5); and a self-healing performance test mechanism is installed on the top of the base (1); The position adjustment assembly comprises a support shell (20) arranged on a side of the movable seat (2) facing the first curved plate (3); the support shell (20) is a hollow structure with both the top and bottom ends open; at least one second hydraulic telescopic rod (19) is fixedly mounted on the movable seat (2); the telescopic end of the second hydraulic telescopic rod (19) is fixedly connected to the support shell (20); two movable blocks (21) are arranged in the support shell (20); the first curved plate (3) and the second curved plate (4) are both fixedly connected to the side of the support shell (20); A first prism (22) is fixedly connected, two rectangular holes (23) are provided on the inner wall of the support shell (20), the two first prisms (22) respectively penetrate the two rectangular holes (23) and the two movable blocks (21), one end of the first prism (22) facing the movable seat (2) is fixedly connected to a support plate (24), the support plate (24) and the movable block (21) are connected via a plurality of tension springs (25), and the support shell (20) is provided with a damping drive structure for driving the two movable blocks (21) to move in different directions; The sealing unit comprises a sealing pad (14) fixedly mounted on the inner wall of the first curved plate (3) and the second curved plate (4), respectively, and a sealing strip (15) is fixedly connected to the top end of the first curved plate (3) and the bottom end of the second curved plate (4); The crack construction mechanism comprises a fixed block (38) arranged in the support shell (20), the inner walls of both sides of the support shell (20) are symmetrically provided with first avoidance holes (39) adapted to the fixed blocks (38), the sides close to each other of the two fixed blocks (38) are provided with a slide groove (40), a sliding seat (41) is provided in the slide groove (40), one side of the sliding seat (41) and the inner wall of the slide groove (40) are connected by a plurality of compression springs (42), the other side of the sliding seat (41) is fixedly connected to the pressure block (6), and the side of the fixed block (38) away from the pressure block (6) is fixedly connected to the first two prisms (43), and the movable seat (2) is provided with a second avoidance hole (44) matched with the second prism (43), the second prism (43) passes through the second avoidance hole (44), the outer sliding sleeve of the second prism (43) is provided with a support sleeve (45), and the support sleeve (45) and the movable seat (2) are rotatably connected, and the two movable seats (2) are fixedly connected with a protective shell (55) on the side away from each other, the protective shell (55) is equipped with a self-rotating driver matched with the support sleeve (45), and the protective shell (55) is equipped with a translation member for driving the second prism (43) to move in a horizontal direction; The translation member comprises a support seat (46) rotatably mounted on an end of the second prism (43) away from the fixed block (38), and the support seat (46) is located in the protective shell (55), a guide plate (47) passes through the support seat (46), and the guide plate (47) is fixedly connected to the inner wall of the protective shell (55), the top and bottom of the support seat (46) are respectively fixedly connected to third tooth plates (48), a third rotating shaft (49) is provided on the side of the third tooth plate (48) away from the support seat (46), the third rotating shaft (49) and the protective shell (55) are rotatably connected, and a third gear (50) is provided on the outer fixed sleeve of the third rotating shaft (49), and two fourth tooth plates (51) are fixedly connected to the side of the support shell (20) facing the protective shell (55), the fourth tooth plate (51) and the third tooth plate (48) both pass through the movable seat (2), and the fourth tooth plate (51) and the third tooth plate (48) are respectively meshed with the corresponding third gear (50); The self-rotating drive comprises a fourth gear (52) fixedly sleeved on the outside of the supporting sleeve (45); a fifth toothed plate (53) passes through the protective shell (55); the fifth toothed plate (53) and the fourth gear (52) are meshed; a third hydraulic telescopic rod (54) is fixedly connected to the outer wall of the protective shell (55); and the third hydraulic telescopic rod (54) and the fifth toothed plate (53) are fixedly connected.

2. A concrete self-healing performance testing device according to claim 1, characterized in that: The self-healing performance test mechanism comprises a collecting box (7) fixedly mounted on the top of a base (1); a first liquid outlet pipe (9) is provided at the bottom end of the collecting box (7), and a valve is provided on the first liquid outlet pipe (9); a storage box (10) is provided above the collecting box (7); and both the collecting box (7) and the storage box (10) are hollow structures with an open top; a plurality of support columns (8) for supporting cylindrical concrete test pieces (5) are fixedly connected inside the collecting box (7); a second liquid outlet pipe (11) is provided at the bottom end of the storage box (10); a sealing ring (12) is provided on the outer fixed sleeve of the second liquid outlet pipe (11); a plurality of pressing columns (13) for pressing the cylindrical concrete test pieces (5) are fixedly connected to the bottom of the sealing ring (12); at least one bracket (16) is fixedly mounted on the base (1); a first hydraulic telescopic rod (17) is fixedly connected to the top of the bracket (16); and the telescopic end of the first hydraulic telescopic rod (17) and the storage box (10) are fixedly connected via a first connecting plate (18).

3. A concrete self-healing performance test device according to claim 1, characterized in that: The damping drive structure comprises two first rotating shafts (26) rotatably mounted in a supporting shell (20); an outer fixed sleeve of the first rotating shaft (26) is provided with a first gear (27); two first toothed plates (28) are fixedly mounted on the movable seat (2), and the first toothed plates (28) and the first geared plates (27) are meshed with each other; second rotating shafts (29) are symmetrically arranged at both ends of the first rotating shaft (26); the second rotating shaft (29) is rotatably connected to the supporting shell (20); one end of the second rotating shaft (29) facing the first rotating shaft (26) is fixedly connected with a first damping plate (33); and the first rotating shaft (2 6), and the second damping disc (34) is fixedly connected to both ends of the movable block (21), and the second damping disc (34) is in contact with the first damping disc (33); the outer fixed sleeve of the second rotating shaft (29) is provided with a second gear (30); the two sides of the movable block (21) are fixedly connected to fixing frames (32), and the fixing frames (32) are fixedly mounted with a second toothed plate (31) meshing with the second gear (30); at least one guide bar (35) passes through the movable block (21), and the two ends of the guide bar (35) are fixedly connected to the inner wall of the support shell (20) through second connecting plates (36).

4. A concrete self-healing performance testing device according to claim 1, characterized in that: The lifting and rotating structure comprises a lifting ring (56) arranged above the base (1); at least one fourth hydraulic telescopic rod (58) is fixedly connected to the top of the base (1); the telescopic end of the fourth hydraulic telescopic rod (58) is fixedly connected to the bottom of the lifting ring (56); an annular groove (57) is provided on the top of the lifting ring (56); a guide ring (59) is provided in the annular groove (57); the bottoms of the two movable seats (2) are fixedly connected to the top of the guide ring (59); a support ring (60) is provided on the outer fixed sleeve of the lifting ring (56); a plurality of positioning holes (61) are provided on the support ring (60); and a positioning piece matching the positioning holes (61) is installed on the movable seat (2).

5. A concrete self-healing performance testing device according to claim 4, characterized in that: The positioning member comprises at least one supporting portion (62) fixedly mounted on the movable seat (2), a positioning column (63) passing through the supporting portion (62), the bottom end of the positioning column (63) being located in a corresponding positioning hole (61), and the top end of the positioning column (63) being fixedly connected to a supporting plate (37) located above the supporting portion (62).

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