Intelligent monitoring system for mass concrete cracks

Abstract

The invention discloses a mass concrete crack intelligent monitoring system, and belongs to the field of monitoring devices.The mass concrete crack intelligent monitoring system comprises a bottom plate cover, a sleeve shell assembly is arranged at the top of the bottom plate cover, a lifting plate is inserted into the inner wall of the sleeve shell assembly, a middle vertical rod is fixed to the bottom end of the lifting plate, and a lower supporting arm is fixed to the bottom end of the middle vertical rod and penetrates through the bottom plate cover; a reset assembly is arranged on the side face of the middle vertical rod. According to the device, opening and closing rods are arranged, a servo stepping motor drives a driving wheel to rotate to change the opening and closing angle of the two opening and closing rods, the depth of a crack is detected and the extension direction of the crack is predicted by changing the distance between the detection probe bodies, and meanwhile, the detection probe bodies can be far away from the ground to avoid abrasion when the device moves; by means of the effects, the device can conveniently and automatically detect large-size cracks, the crack detection accuracy can be improved by reducing the movement error of the monitoring probe, and then the accuracy of predicting the crack development direction is improved.

Description

Technical Field

[0001] The invention relates to the technical field of monitoring devices, and in particular to an intelligent monitoring system for cracks in large-volume concrete. Background Art

[0002] Concrete refers to a general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials. It is widely used in civil engineering. Concrete cracks are an inevitable phenomenon in concrete construction. The causes of concrete cracks are not only due to improper maintenance and insufficient moisture in the initial stage of cement hardening, but also may be caused by the large stress generated by the temperature inside the structure, which causes the concrete to crack. In order to monitor the changes in concrete cracks in time, quantitative rulers are often used in conjunction with crack detectors to calculate the depth of the cracks and predict the direction of the cracks using a specific measurement method. However, manual measurement is not only complicated in steps, but also the accuracy of the measurement cannot be effectively guaranteed, which affects the staff's judgment of the direction of the cracks and brings great losses. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that the measurement steps are complicated and the accuracy of the measurement cannot be effectively guaranteed, and to propose a large-volume concrete crack intelligent monitoring system.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The intelligent monitoring system for cracks in large-volume concrete comprises a bottom plate cover, a sleeve assembly is arranged on the top of the bottom plate cover, a lifting plate is inserted on the inner wall of the sleeve assembly, a central vertical rod is fixed to the bottom end of the lifting plate, a lower support arm is fixed to the bottom end of the central vertical rod through the bottom plate cover, a reset assembly is arranged on the side of the central vertical rod, the inner walls at both ends of the lower support arm are hinged with two side meshing connecting rods through an axis, the number of the meshing connecting rods is four, a driving assembly is arranged on the bottom of the meshing connecting rod, a double-arm shaft rod is meshingly connected to the top side of the lifting plate, and both ends of the double-arm shaft rod The side of the double-arm shaft is sleeved with a limit buckle, both ends of the double-arm shaft are fixed with a wire groove shaft, the side of the wire groove shaft is connected with a sleeve rod through a wire groove, the outer side of the sleeve rod is fixed with a lap arm, the bottom of the lap arm is tightly fitted to the side edge of the bottom plate cover, one end of the lap arm is fixed with a suspension cylinder, the inner wall of the suspension cylinder is connected to the central lifting cylinder through a bearing, the side of the central lifting cylinder is connected to the bottom plate cover through a driven assembly, the inner wall of the central lifting cylinder is connected to a detection probe body through a thread, and the top of the detection probe body is connected to the suspension cylinder through a limit assembly.

[0006] Preferably, the housing assembly comprises a track frame fixed to the top end of the bottom plate cover, the inner wall of the track frame is tightly fitted to the outer side of the lifting plate, and a handle is fixed to the top end of the track frame.

[0007] Preferably, the reset assembly includes a telescopic spring sleeved on the bottom side of the central vertical rod, the top end of the telescopic spring is fixed to the inner bottom wall of the bottom plate cover, and the bottom end of the telescopic spring is fixed to the upper surface of the lower support arm.

[0008] Preferably, a vertical slide groove is formed on the inner side wall of the bottom plate cover, and the inner walls of the two vertical slide grooves are sleeved on the two ends of the lower support arm.

[0009] Preferably, the driving assembly comprises a servo stepper motor fixed to the inner wall of the bottom end of the opening and closing rod, and a driving wheel is fixed to the output end of the servo stepper motor.

[0010] Preferably, the driven assembly comprises an engaging plate fixed to the outer side of the bottom plate cover, and the side surface of the engaging plate is engaged with the outer side of the convex edge at the bottom end of the central lifting cylinder through teeth and grooves.

[0011] Preferably, the limiting assembly comprises a vertical groove formed on the inner wall of the top end of the suspension tube, a limiting rod is inserted into the inner wall of the vertical groove, and the bottom of the limiting rod is inserted into the inner wall of the top end of the detection probe body.

[0012] Preferably, a lap groove is provided at the bottom of the lap arm, and the inner wall of the lap groove is tightly fitted to one side of the top end of the bottom plate cover.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention sets an opening and closing rod, and a servo stepper motor drives the driving wheel to rotate to change the opening and closing angles of the two opening and closing rods. The driving wheel rotation can drive the device to move forward, backward and turn, and can also drive the two overlapping arms to move a certain distance. The depth of the cracks and the extension direction of the cracks can be detected by changing the spacing between the detection probe bodies. At the same time, the detection probe body can be kept away from the ground to avoid wear when the device moves. The above effects can facilitate the device to automatically detect large-volume cracks, and can also improve the accuracy of crack detection by reducing the movement error of the monitoring probe, thereby improving the accuracy of predicting the development direction of the cracks.

[0015] 2. The present invention sets a lower support arm, which can drive the lifting plate to rise or fall by changing the angle through the opening and closing rod, thereby driving the double-arm shaft to rotate and synchronously moving the two overlapping arms to change the spacing of the detection probe body to improve the accuracy of the crack detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the intelligent monitoring system for large-volume concrete cracks proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the explosion structure of the intelligent monitoring system for large-volume concrete cracks proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the bottom plate cover of the large-volume concrete crack intelligent monitoring system proposed by the present invention;

[0019] Figure 4 This is a schematic diagram of the explosion structure at the central lifting cylinder of the large-volume concrete crack intelligent monitoring system proposed by the present invention;

[0020] Figure 5 A schematic diagram of the cross-sectional structure of the vertical rod in the intelligent monitoring system for cracks in large-volume concrete proposed by the present invention;

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of the lap joint arm of the intelligent monitoring system for cracks in large-volume concrete proposed by the present invention.

[0022] In the figure: 1. Bottom plate cover; 2. Lifting plate; 3. Middle vertical rod; 4. Lower support arm; 5. Opening and closing rod; 6. Double-arm shaft rod; 7. Limit buckle; 8. Wire groove shaft rod; 9. Sleeve rod; 10. Overlap arm; 11. Suspension cylinder; 12. Center lifting cylinder; 13. Detection probe body; 14. Track frame; 15. Handle; 16. Telescopic spring; 17. Vertical slide groove; 18. Servo stepper motor; 19. Driving wheel; 20. Engaging plate; 21. Vertical groove; 22. Limit rod. DETAILED DESCRIPTION

[0023] 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.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example, see Figures 1 to 6 The intelligent monitoring system for large-volume concrete cracks includes a base cover 1, the inner wall of the base cover 1 is provided with a vertical slide groove 17, the inner walls of the two vertical slide grooves 17 are sleeved on the two ends of the lower support arm 4, and a shell assembly is provided on the top of the base cover 1. Furthermore, the shell assembly includes a track frame 14 fixed to the top of the base cover 1, the inner wall of the track frame 14 is tightly fitted to the outer side of the lifting plate 2, and a handle 15 is fixed to the top of the track frame 14.

[0027] A further benefit of adopting the above method is that the track frame 14 can be used to protect the lifting plate 2 from being disturbed by other objects during the lifting process, thereby affecting the smooth rotation of the lifting plate 2 and the double-arm shaft 6 connected to the lifting plate 2.

[0028] A lifting plate 2 is inserted into the inner wall of the shell assembly, a center vertical rod 3 is fixed to the bottom end of the lifting plate 2, the bottom end of the center vertical rod 3 passes through the bottom plate cover 1 and is fixed with a lower support arm 4, a reset assembly is provided on the side of the center vertical rod 3, further, the reset assembly includes a telescopic spring 16 sleeved on the bottom side of the center vertical rod 3, the top end of the telescopic spring 16 is fixed to the inner bottom wall of the bottom plate cover 1, and the bottom end of the telescopic spring 16 is fixed to the upper surface of the lower support arm 4.

[0029] A further benefit of adopting the above method is that the telescopic spring 16 is provided to reduce the shaking amplitude of the bottom plate cover 1 when the device moves, so as to reduce the negative impact on the detection probe body 13, so that the monitoring probe 13 can be stably attached to the ground to accurately detect crack information.

[0030] The inner walls at both ends of the lower support arm 4 are hinged with two side-engaging opening and closing rods 5 through an axis. There are four opening and closing rods 5, and a driving assembly is provided at the bottom of the opening and closing rods 5. Furthermore, the driving assembly includes a servo stepper motor 18 fixed to the inner wall of the bottom end of the opening and closing rod 5, and a driving wheel 19 is fixed to the output end of the servo stepper motor 18.

[0031] Further advantages of adopting the above method are: the driving wheel 19 can be driven by the servo stepper motor 18 to drive the device to move horizontally quickly, or one of the servo stepper motors 18 can accelerate the rotation to drive the device to change the moving direction; secondly, it can be driven by the driving wheel 19 on the opening and closing rod 5 on one side of the lower support arm 4, and the other set of driving wheels 19 does not rotate, thereby changing the angle between the two sets of opening and closing rods 5 and driving the device to move horizontally. When moving, the opening and closing rod 5 can drive the double-arm shaft rod 6 to rotate through the lifting plate 2, thereby driving the two suspension tubes 11 connected to the wire groove shaft rod 8 to change the spacing, so that the two detection probe bodies 13 can measure the crack information at a certain spacing.

[0032] The top side of the lifting plate 2 is meshedly connected with a double-arm shaft rod 6, and the side surfaces of both ends of the double-arm shaft rod 6 are sleeved with limit buckles 7. Both ends of the double-arm shaft rod 6 are fixed with a wire groove shaft rod 8, and the side surfaces of the wire groove shaft rod 8 are connected with a sleeve rod 9 through a wire groove. A lap arm 10 is fixed to the outside of the sleeve rod 9, and a lap groove is provided at the bottom of the lap arm 10. The inner wall of the lap groove fits tightly against the top side of the bottom plate cover 1, and the bottom of the lap arm 10 fits tightly against the side edge of the bottom plate cover 1. A suspension cylinder 11 is fixed to one end of the lap arm 10, and the inner wall of the suspension cylinder 11 is connected to the central lifting cylinder 12 through a bearing. The side surface of the central lifting cylinder 12 is connected to the bottom plate cover 1 through a driven component. Further, the driven component includes a meshing plate 20 fixed to the outside of the bottom plate cover 1, and the side surface of the meshing plate 20 is meshedly connected to the outer side of the convex edge at the bottom end of the central lifting cylinder 12 through a tooth groove.

[0033] A further advantage of adopting the above method is that the lap arm 10 changes its spacing under the drive of the wire groove shaft 8, and when the lap arm 10 moves, it can complete the lifting and lowering action of the detection probe body 13 through the central lifting cylinder 12 under the action of the engaging plate 20. This process is to avoid that the lap arm 10 changes its angle and drives the bottom plate cover 1 to lift and lower, which will change the distance of the detection probe body 13 from the ground. The rotation of the central lifting cylinder 12 can also drive the detection probe body 13 to lift and lower, so as to avoid the detection probe body 13 from being damaged by friction with the ground when the device moves.

[0034] The inner wall of the central lifting cylinder 12 is connected to the detection probe body 13 through a thread, and the top of the detection probe body 13 is connected to the suspension cylinder 11 through a limit assembly. Furthermore, the limit assembly includes a vertical groove 21 opened on the inner wall of the top end of the suspension cylinder 11, and a limit rod 22 is inserted into the inner wall of the vertical groove 21, and the bottom of the limit rod 22 is inserted into the inner wall of the top end of the detection probe body 13.

[0035] A further advantage of adopting the above method is that the limiting rod 22 is inserted into the inner wall of the top end of the detection probe body 13 to ensure that when the central lifting cylinder 12 rotates, it can drive the detection probe body 13 to complete the lifting action through the thread groove.

[0036] When the present invention is used, when the device is moved horizontally or the moving direction of the device is changed, the horizontal movement can be completed by synchronously driving the servo stepper motor 18, and changing the driving speed of a servo stepper drive motor 18 can cause the device to change its direction;

[0037] When the device steps at a specific moving distance, the two servo stepper motors 18 on one side of the lower support arm 4 can drive the driving wheel 19 to rotate, and the two servo stepper motors 18 on the other side do not rotate to complete the stepping work. Then, the two servo stepper motors 18 on the other side work, and the servo stepper motors 18 on both sides of one side do not move. The two sets of processes are a complete process. At this time, the device can ensure that the moving distances of the two actions are the same. The angle between the two overlapping arms 10 can limit the distance that the device moves each time.

[0038] When the opening and closing rod 5 changes its angle driven by the driving wheel 19, the lifting plate 2 will rise or fall, and the lifting plate 2 will drive the double-arm shaft 6 to rotate, thereby changing the distance between the two overlapping arms 10. During the process of changing the distance between the overlapping arms 10, the suspension tube 11 will move horizontally, and under the action of the meshing plate 20, it will drive the central lifting tube 12 to rotate to change the distance between the detection probe body 13 and the ground.

[0039] 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 large volume concrete crack intelligent monitoring system, comprising a bottom plate cover (1), characterized in that: The top of the bottom plate cover (1) is provided with a sleeve assembly, the inner wall of the sleeve assembly is plugged with a lifting plate (2), the bottom end of the lifting plate (2) is fixed with a central vertical rod (3), the bottom end of the central vertical rod (3) passes through the bottom plate cover (1) and is fixed with a lower support arm (4), the side of the central vertical rod (3) is provided with a reset assembly, the inner walls at both ends of the lower support arm (4) are hinged with two side meshing connecting rods (5), the number of the meshing connecting rods (5) is four, the bottom of the meshing connecting rod (5) is provided with a driving assembly, the top side of the lifting plate (2) is meshingly connected with a double-arm shaft rod (6), the side surfaces of the two ends of the double-arm shaft rod (6) are sleeved with limit buckles (7), the double-arm shaft rod (6) A threaded shaft rod (8) is fixed at both ends, and the side of the threaded shaft rod (8) is connected to a sleeve rod (9) through a threaded groove. A lap arm (10) is fixed to the outside of the sleeve rod (9), and the bottom of the lap arm (10) is tightly fitted to the side edge of the bottom plate cover (1). A suspension cylinder (11) is fixed to one end of the lap arm (10), and the inner wall of the suspension cylinder (11) is connected to a central lifting cylinder (12) through a bearing. The side of the central lifting cylinder (12) is connected to the bottom plate cover (1) through a driven component, and the inner wall of the central lifting cylinder (12) is connected to a detection probe body (13) through a thread, and the top of the detection probe body (13) is connected to the suspension cylinder (11) through a limit component.

2. The intelligent monitoring system for cracks in large-volume concrete according to claim 1 is characterized in that: The casing assembly comprises a track frame (14) fixed to the top of the bottom plate cover (1), the inner wall of the track frame (14) is tightly fitted to the outer side of the lifting plate (2), and a handle (15) is fixed to the top of the track frame (14).

3. The intelligent monitoring system for cracks in large-volume concrete according to claim 1 is characterized in that: The reset assembly comprises a telescopic spring (16) sleeved on the bottom side of the central vertical rod (3), the top end of the telescopic spring (16) is fixed to the inner bottom wall of the bottom plate cover (1), and the bottom end of the telescopic spring (16) is fixed to the upper surface of the lower support arm (4).

4. The intelligent monitoring system for cracks in large-volume concrete according to claim 1 is characterized in that: The inner side wall of the bottom plate cover (1) is provided with a vertical slide groove (17), and the inner walls of the two vertical slide grooves (17) are sleeved on the two ends of the lower support arm (4).

5. The intelligent monitoring system for cracks in large-volume concrete according to claim 1 is characterized in that: The driving assembly comprises a servo stepper motor (18) fixed to the inner wall of the bottom end of the opening and closing rod (5), and a driving wheel (19) is fixed to the output end of the servo stepper motor (18).

6. The intelligent monitoring system for cracks in large-volume concrete according to claim 1 is characterized in that: The driven assembly comprises an engagement plate (20) fixed to the outside of the bottom plate cover (1), and the side surface of the engagement plate (20) is engaged with the outside of the convex edge of the bottom end of the central lifting cylinder (12) through tooth grooves.

7. The intelligent monitoring system for cracks in large-volume concrete according to claim 1 is characterized in that: The limiting assembly comprises a vertical groove (21) formed on the inner wall of the top end of the suspension tube (11); a limiting rod (22) is inserted into the inner wall of the vertical groove (21); and the bottom of the limiting rod (22) is inserted into the inner wall of the top end of the detection probe body (13).

8. The intelligent monitoring system for cracks in large-volume concrete according to claim 1 is characterized in that: A lap groove is provided at the bottom of the lap arm (10), and the inner wall of the lap groove is tightly fitted to one side of the top end of the bottom plate cover (1).

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