Crack detector

Abstract

The utility model discloses a crack detector which comprises an inner cylinder, a fixed seat and a base, and a movable groove is formed in the inner cylinder. The detection head is taken down by pulling the pulling plate, different detection requirements and environments can be met by replacing different detection heads, when the detection head breaks down or is damaged, the detection head can be easily detached for maintenance or replacement, and the service life is prolonged; the two limiting blocks are pressed at the same time and the inner cylinder is pulled to a proper length, so that the two limiting blocks are inserted into the limiting holes with proper heights, adjustment can be conveniently carried out according to the height of a crack on a building main body, the crack detector can adapt to cracks with different heights and different detection environments, the operation difficulty is reduced, and the working efficiency is improved; and by rotating the fixing sleeve, the damping of rotation can be conveniently adjusted, so that the detection head can rotate in multiple directions, and cracks of the building main body in multiple directions can be detected.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a crack detector. Background Art

[0002] The main body of a building refers to the structural structure of the building entity, including the roof, floor, beams, columns, supports, walls, connection points and foundations. During the construction process, workers usually need to conduct crack detection on the main body of the building. The crack detection content mainly includes the location, shape, distribution characteristics, width, length, depth, direction, number, time process of crack occurrence and development, whether it is stable, whether there is exudate in the crack, the apparent quality of the concrete around the crack, etc. The location, number and direction of the cracks are generally recorded in the form of photos and crack development diagrams.

[0003] When using existing crack detectors, cracks may appear at different heights, such as walls, floors, bridges, etc. The height and angle of the detector are not easy to adjust, and more accurate crack data cannot be obtained, which is prone to errors and interference. Different detection needs and environments require different detectors, which are not easy to disassemble and install, cannot be used for different types of crack detection, and are not easy to maintain and repair. Therefore, a crack detector is proposed to address the above problems. Summary of the invention

[0004] In this embodiment, a crack detector is provided to solve the problem that when the crack detector in the prior art is used, cracks may appear at different heights, such as walls, floors, bridges, etc., the height and angle of the detector are not easy to adjust, and more accurate crack data cannot be obtained, and errors and interferences are prone to occur; different detection needs and environments require the use of different detectors, the detectors are not easy to disassemble and install, cannot be used for different types of crack detection, and are not easy to maintain and repair.

[0005] According to one aspect of the present application, a crack detector is provided, including an inner cylinder, a fixed seat and a base, wherein a movable groove is opened inside the inner cylinder, and two fixed rods are fixedly installed in the inner cavity of the movable groove, and two movable plates are slidably connected to the two fixed rods, and a limiting block is fixedly installed on one side of the two movable plates, and two second springs are sleeved on the two fixed rods, and the two ends of the springs are respectively fixedly connected to the movable groove and the movable plate.

[0006] Furthermore, an outer cylinder is fixedly mounted on the top of the base, and a plurality of equally spaced limiting holes are formed on the outer cylinder, and both of the limiting blocks can be plugged into the plurality of limiting holes.

[0007] Furthermore, two guide grooves are provided on the inner cavity side wall of the outer cylinder, and two guide blocks are fixedly mounted on the inner cylinder, and the two guide blocks are slidably connected to the two guide grooves respectively.

[0008] Furthermore, a fixed cylinder is fixedly installed on the top of the fixed seat, and a screw is rotatably connected to the interior of the fixed cylinder through a bearing, a handwheel is fixedly installed on one end of the screw, one end of the screw extends to the interior of the fixed cylinder and is threadedly connected to a movable cylinder, and one end of the movable cylinder extends to the outer end of the fixed cylinder and is fixedly installed with a mounting plate.

[0009] Furthermore, two sliding grooves are provided on the inner wall of the fixed cylinder, and two sliding blocks are fixedly installed on the upper part of the movable cylinder, and the two sliding blocks are slidably connected to the two sliding grooves respectively.

[0010] Furthermore, two fixing plates are fixedly installed on one side of the mounting plate, fixing grooves are opened inside the two fixing plates, the inner cavities of the two fixing grooves are slidably connected with connecting plates, connecting rods and plug-in rods are fixedly installed on both sides of the connecting plates, and one end of the two connecting rods extends to the outer end of the fixing plate and a pull plate is fixedly installed thereon.

[0011] Furthermore, a first spring is sleeved on each of the two connecting rods, and two ends of the first spring are fixedly connected to the fixing groove and the connecting plate respectively.

[0012] Furthermore, a detection head is provided on one side of the mounting plate, and two plug-in slots are provided on the detection head, and the two plug-in rods are respectively slidably connected to the two plug-in slots.

[0013] Furthermore, a universal ball is fixedly installed on the top end of the inner cylinder, a connecting seat is fixedly installed on the bottom end of the fixing seat, a fixing sleeve is threadedly connected to the connecting seat, damping pads are provided on the connecting seat and the fixing sleeve, and the universal ball passes through the connecting seat.

[0014] Furthermore, a brake universal wheel is fixedly mounted on the bottom end of the base, and the number of the brake universal wheels is three.

[0015] Through the above-mentioned embodiments of the present application, the detection head is removed by pulling the pull plate, and by replacing different detection heads, it can adapt to different detection needs and environments. When the detection head fails or is damaged, it can be easily removed for repair or replacement, thereby extending the service life; by pressing the two limit blocks at the same time and pulling the inner tube to a suitable length, the two limit blocks are plugged into the limit holes of a suitable height, thereby facilitating adjustment according to the height of the cracks on the building body. The crack detector can adapt to cracks of different heights and different detection environments, reducing the difficulty of operation and improving work efficiency; by rotating the fixing sleeve, it is convenient to adjust the damping size of the rotation, so that the detection head can rotate in multiple directions, thereby realizing the detection of cracks in multiple directions of the building body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the planar internal structure of an embodiment of the present application;

[0019] Figure 3 For an embodiment of the present application Figure 2 A schematic diagram of the enlarged structure at point A;

[0020] Figure 4 For an embodiment of the present application Figure 2 A schematic diagram of the enlarged structure at B;

[0021] Figure 5 This is a schematic diagram of the internal structure of the inner cylinder and the outer cylinder in a side view of an embodiment of the present application.

[0022] In the figure: 1. detection head; 2. mounting plate; 3. fixed cylinder; 4. movable cylinder; 5. slide groove; 6. fixed seat; 7. connecting seat; 8. damping pad; 9. screw; 10. slider; 11. hand wheel; 12. inner cylinder; 13. limit hole; 14. outer cylinder; 15. base; 16. brake universal wheel; 17. universal ball; 18. fixed sleeve; 19. fixed plate; 20. plug-in groove; 21. plug-in rod; 22. connecting plate; 23. first spring; 24. connecting rod; 25. pull plate; 26. second spring; 27. fixed rod; 28. movable plate; 29. ​​limit block; 30. movable groove; 31. guide block; 32. guide groove. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the human resource management used in this way can be interchanged in appropriate circumstances, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] See also Figure 1-5 As shown, a crack detector includes an inner tube 12, a fixed seat 6 and a base 15. The inner tube 12 is provided with a movable groove 30. Two fixed rods 27 are fixedly installed in the inner cavity of the movable groove 30. Two movable plates 28 are slidably connected to the two fixed rods 27. One side of the two movable plates 28 is fixedly installed with a limiting block 29. Two second springs 26 are sleeved on the two fixed rods 27. The two ends of the second spring 26 are fixedly connected to the movable groove 30 and the movable plate 28 respectively.

[0030] An outer cylinder 14 is fixedly mounted on the top of the base 15 . A plurality of equally spaced limiting holes 13 are formed on the outer cylinder 14 . Both of the limiting blocks 29 can be plugged into the plurality of limiting holes 13 .

[0031] Two guide grooves 32 are formed on the inner cavity side wall of the outer cylinder 14 , and two guide blocks 31 are fixedly mounted on the upper portion of the inner cylinder 12 . The two guide blocks 31 are slidably connected to the two guide grooves 32 , respectively.

[0032] A fixed cylinder 3 is fixedly installed on the top of the fixed seat 6, and a screw 9 is rotatably connected to the interior of the fixed cylinder 3 through a bearing. A handwheel 11 is fixedly installed on one end of the screw 9. One end of the screw 9 extends to the interior of the fixed cylinder 3 and is threadedly connected to a movable cylinder 4. One end of the movable cylinder 4 extends to the outer end of the fixed cylinder 3 and is fixedly installed with a mounting plate 2.

[0033] The inner wall of the fixed cylinder 3 is provided with two slide grooves 5 , and the upper part of the movable cylinder 4 is fixedly mounted with two sliding blocks 10 , and the two sliding blocks 10 are slidably connected with the two slide grooves 5 respectively.

[0034] Two fixing plates 19 are fixedly installed on one side of the mounting plate 2, and fixing grooves are opened inside the two fixing plates 19. The inner cavities of the two fixing grooves are slidably connected with connecting plates 22. Connecting rods 24 and plug-in rods 21 are fixedly installed on both sides of the connecting plates 22, and one end of the two connecting rods 24 extends to the outer end of the fixing plate 19 and is fixedly installed with a pull plate 25.

[0035] The two connecting rods 24 are both sleeved with a first spring 23 , and two ends of the first spring 23 are fixedly connected to the fixing groove and the connecting plate 22 respectively.

[0036] A detection head 1 is disposed on one side of the mounting plate 2 . Two plug-in slots 20 are formed on the detection head 1 . The two plug-in rods 21 are slidably connected to the two plug-in slots 20 , respectively.

[0037] A universal ball 17 is fixedly installed on the top end of the inner cylinder 12, a connecting seat 7 is fixedly installed on the bottom end of the fixing seat 6, a fixing sleeve 18 is threadedly connected to the connecting seat 7, damping pads 8 are provided on both the connecting seat 7 and the fixing sleeve 18, and the universal ball 17 passes through the connecting seat 7.

[0038] A brake universal wheel 16 is fixedly mounted on the bottom end of the base 15 , and the number of the brake universal wheels 16 is three.

[0039] When the present application is in use, the electronic components appearing in the present application are all externally connected to the power supply and the control switch, and the present device is moved or fixed in a suitable area by the brake universal wheel 16; the two limit blocks 29 are pressed at the same time, and the two limit blocks 29 are away from the two limit holes 14 at the same time. Under the action of the guide groove and the guide block, the inner cylinder 12 can only move up and down and will not rotate at will. The inner cylinder 12 is pulled to a suitable length, and the multiple second springs 26 are reset, so that the two limit blocks 29 are plugged into the limit holes 14 of suitable height, so that it is convenient to adjust according to the height of the cracks on the building body, and can adapt to cracks of different heights and different detection environments, reducing the difficulty of operation and improving work efficiency; rotating the fixing sleeve 18, the fixing sleeve 18 drives the damping pad 8 to abut against the universal ball 17, and the friction between the damping pad 8 and the universal ball increases, so The invention is used to adjust the damping size of the rotation, so that the detection head 1 can rotate in multiple directions, so as to detect cracks in multiple directions of the building main body; the hand wheel 11 is turned, and the rotation of the hand wheel 11 drives the screw rod 9 to rotate. Under the cooperation of the slide groove 5 and the slider 10, the movable cylinder 4 moves along the surface of the screw rod 9, so as to adapt to cracks of different sizes and shapes, thereby improving the accuracy of crack detection; the pull plate 25 is pulled, and the pull plate 25 drives the connecting plate 22 to slide inside the fixed groove through the connecting rod 24, so that the first spring 23 is compressed, and the connecting plate 22 drives the plug rod 21 away from the plug groove 20, and the detection head 1 is removed. By replacing different detection heads 1, different detection needs and environments can be adapted. When the detection head fails or is damaged, it can be easily disassembled for repair or replacement, thereby extending the service life.

[0040] The benefits of this application are:

[0041] 1. By pulling the pull plate 25, the pull plate 25 drives the connecting plate 22 to slide inside the fixed groove through the connecting rod 24, so that the first spring 23 is compressed, and the connecting plate 22 drives the plug rod 21 away from the plug slot 20, and the detection head 1 is removed. By replacing different detection heads 1, it can adapt to different detection needs and environments. When the detection head fails or is damaged, it can be easily disassembled for maintenance or replacement, thereby extending the service life;

[0042] 2. By pressing the two limit blocks 29 at the same time, the two limit blocks 29 are away from the two limit holes 14 at the same time. Under the action of the guide groove and the guide block, the inner tube 12 can only move up and down and will not rotate at will. The inner tube 12 is pulled to a suitable length, and the multiple second springs 26 are reset, so that the two limit blocks 29 are plugged into the limit holes 14 of suitable height, so that it is convenient to adjust according to the height of the cracks on the building body, and can adapt to cracks of different heights and different detection environments, reducing the difficulty of operation and improving work efficiency.

[0043] 3. By moving the fixing sleeve 18, the fixing sleeve 18 drives the damping pad 8 to abut against the universal ball 17, and the friction between the damping pad 8 and the universal ball is increased, which is convenient for adjusting the damping size of the rotation, so that the detection head 1 can rotate in multiple directions, thereby realizing the detection of cracks in multiple directions of the building body.

[0044] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software and methods.

[0045] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A crack detector, characterized in that: The invention comprises an inner tube (12), a fixed seat (6) and a base (15); a movable groove (30) is provided inside the inner tube (12); two fixed rods (27) are fixedly installed in the inner cavity of the movable groove (30); two movable plates (28) are slidably connected to the two fixed rods (27); one side of the two movable plates (28) is fixedly installed with a limiting block (29); two second springs (26) are sleeved on the two fixed rods (27); two ends of the second springs (26) are fixedly connected to the movable groove (30) and the movable plate (28) respectively.

2. The crack detector according to claim 1, characterized in that: An outer cylinder (14) is fixedly mounted on the top of the base (15), and a plurality of equally spaced limiting holes (13) are provided on the outer cylinder (14), and both of the limiting blocks (29) can be plugged into the plurality of limiting holes (13).

3. The crack detector according to claim 2, characterized in that: Two guide grooves (32) are provided on the inner cavity side wall of the outer cylinder (14), and two guide blocks (31) are fixedly mounted on the upper portion of the inner cylinder (12). The two guide blocks (31) are respectively slidably connected to the two guide grooves (32).

4. The crack detector according to claim 1, characterized in that: A fixed cylinder (3) is fixedly mounted on the top of the fixed seat (6); a screw rod (9) is rotatably connected to the interior of the fixed cylinder (3) via a bearing; a hand wheel (11) is fixedly mounted on one end of the screw rod (9); one end of the screw rod (9) extends to the interior of the fixed cylinder (3) and is threadedly connected to a movable cylinder (4); one end of the movable cylinder (4) extends to the outer end of the fixed cylinder (3) and is fixedly mounted with a mounting plate (2).

5. The crack detector according to claim 4, characterized in that: Two slide grooves (5) are provided on the inner wall of the fixed cylinder (3), and two sliding blocks (10) are fixedly installed on the upper part of the movable cylinder (4), and the two sliding blocks (10) are respectively slidably connected to the two slide grooves (5).

6. The crack detector according to claim 4, characterized in that: Two fixing plates (19) are fixedly installed on one side of the mounting plate (2), and fixing grooves are provided inside the two fixing plates (19). The inner cavities of the two fixing grooves are slidably connected with connecting plates (22), and connecting rods (24) and plug-in rods (21) are fixedly installed on both sides of the connecting plates (22), and one end of the two connecting rods (24) extends to the outer end of the fixing plate (19) and is fixedly installed with a pull plate (25).

7. The crack detector according to claim 6, characterized in that: A first spring (23) is sleeved on each of the two connecting rods (24), and two ends of the first spring (23) are fixedly connected to the fixing groove and the connecting plate (22) respectively.

8. The crack detector according to claim 6, characterized in that: A detection head (1) is arranged on one side of the mounting plate (2), and two plug-in slots (20) are provided on the detection head (1). The two plug-in rods (21) are respectively slidably connected to the two plug-in slots (20).

9. The crack detector according to claim 3, characterized in that: A universal ball (17) is fixedly mounted on the top end of the inner cylinder (12), a connecting seat (7) is fixedly mounted on the bottom end of the fixing seat (6), a fixing sleeve (18) is threadedly connected to the connecting seat (7), a damping pad (8) is provided on both the connecting seat (7) and the fixing sleeve (18), and the universal ball (17) passes through the connecting seat (7).

10. The crack detector according to claim 1, characterized in that: A brake universal wheel (16) is fixedly mounted on the bottom end of the base (15), and there are three brake universal wheels (16).

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