A building structure crack width detection device

Abstract

The utility model relates to building detection technical field, and disclose a kind of building structure crack width detection equipment, including mounting plate, the upper surface of mounting plate is fixedly connected with fixed column, the outside of fixed column is equipped with first round plate, the upside of first round plate is provided with second round plate, the inside of second round plate is equipped with the installation recess that extends second round plate peripheral surface, the cooperation between the structure such as rotating disc, first threaded rod, rotating shaft, gear, tooth is realized, the height of crack width detector is adjusted and rotates, to realize the crack width detection to arc building structure, dust, mud, moisture and other external pollutants are also effectively isolated from the invasion, avoid the abrasion, jam and corrosion problem caused by foreign matter.

Description

Technical Field

[0001] This utility model relates to the field of building inspection technology, specifically a device for detecting the width of cracks in building structures. Background Technology

[0002] A building structure is a skeleton structure formed by building components such as slabs, beams, columns, walls, and foundations. It has a certain spatial function and can safely withstand various normal loads of the building. Once cracks appear in the building structure, it is very likely that the load-bearing capacity of the building structure or components will be insufficient and it will be destroyed. At the same time, if the cracks are not detected and treated, they will continue to develop, thus affecting the safety of the building structure.

[0003] In the prior art, Chinese utility model patent with publication number CN220082607U discloses a building structure crack width detection device. This prior art effectively solves the problem of detecting arc-shaped building structures by setting an adjustment unit composed of gears and gear rings to drive the detector to move in a circular trajectory. However, in actual use, the threaded rod used for lifting and the key transmission components such as gears and gear rings used for adjusting the angle are completely exposed to the external environment. Since there is usually a lot of dust and debris on the construction site, and there may even be splashed mud, these contaminants can easily penetrate the meshing surfaces of gears, racks and threads, leading to accelerated wear, movement jamming, or even complete damage, which seriously affects the service life and reliability of the equipment. External dust and oil stains adhering to the threaded rod will change the friction coefficient of the thread pair, causing crawling during lifting and lowering. Foreign objects stuck in the gears and gear rings will cause uneven rotation or even skipping teeth. These factors will introduce positioning errors, ultimately affecting the accuracy and consistency of crack width measurement data, resulting in poor protection in actual use. In view of this, we propose a building structure crack width detection device to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a building structure crack width detection device to solve the problem of inconvenience in using some existing building structure crack width detection devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a building structure crack width detection device, comprising a mounting plate, a fixing column fixedly connected to the upper surface of the mounting plate, a first circular plate fixedly sleeved on the outside of the fixing column, a second circular plate disposed on the upper side of the first circular plate, an installation groove extending out of the circumference of the second circular plate being formed inside the second circular plate, a rotating ring rotatably connected inside the installation groove, a crack width detector fixedly connected to the surface of the rotating ring, teeth fixedly connected to the side surface of the rotating ring away from the crack width detector, a rotating shaft rotatably connected inside the installation groove, a gear fixedly sleeved on the outside of the rotating shaft, the gear and the teeth meshing together, a lifting assembly disposed inside the fixing column, the lower end of the rotating shaft rotatably penetrating through the lower surface of the second circular plate, and a locking assembly disposed outside the rotating shaft.

[0006] By adopting the above technical solution, the gears and teeth are placed inside the mounting groove, effectively isolating the intrusion of external pollutants such as dust, mud, and moisture. This avoids wear, jamming, and corrosion caused by foreign objects, significantly improving the reliability, durability, and service life of the transmission system. It enables the equipment to adapt to harsher and more complex construction site environments, thus enhancing the overall practicality of the device.

[0007] Preferably, the lifting assembly includes a lifting column, which is slidably sleeved inside a fixed column. A first threaded rod is rotatably connected inside the fixed column, and the lifting column is threadedly sleeved outside the first threaded rod. The upper end of the lifting column is fixedly connected to a second circular plate. Four support rods are rotatably connected to the surface of the first circular plate via a shaft. The ends of the four support rods away from the first circular plate are respectively rotatably connected to the lower surface of the second circular plate via a shaft.

[0008] By adopting the above technical solution, and by setting the first threaded rod inside the fixed column, the adhesion of external dust or debris to the surface of the first threaded rod is effectively avoided, thereby effectively extending the service life of the first threaded rod and ensuring its transmission efficiency. At the same time, the setting of four support rods further improves the support effect on the second circular plate.

[0009] Preferably, the surface of the fixing column is provided with a through groove that communicates with the interior of the fixing column, and a rotating disk is provided inside the through groove. The rotating disk is fixedly sleeved on the outside of the first threaded rod, and the surface of the rotating disk is also provided with an anti-slip groove.

[0010] By adopting the above technical solution, the cooperation between the through groove, the rotating disk and the anti-slip groove on its surface makes it easier for the operator to drive the first threaded rod to rotate, and effectively increases the friction between it and the rotating disk, thus effectively preventing the rod from slipping out of the hand.

[0011] Preferably, the locking assembly includes a grip, the grip having a movable chamber inside, the grip being movably sleeved on the outside of the rotating shaft through the movable chamber, the inner wall of the movable chamber having a synchronization groove, and a synchronization plate being fixedly connected to one end of the rotating shaft located inside the movable chamber, the synchronization plate being slidably connected inside the synchronization groove.

[0012] By adopting the above technical solution, the grip and the anti-slip grooves on the surface make it easy for workers to rotate the gap width detector. It is easy to operate and does not require an additional power source or complicated wiring.

[0013] Preferably, a return spring is fixedly connected between the upper surface of the synchronization plate and the top wall of the movable chamber. The return spring is movably sleeved outside the rotating shaft. Rubber pads are provided on the side surface of the handle and the second circular plate that are close to each other.

[0014] By adopting the above technical solution, the cooperation between the return spring and the rubber pad effectively ensures that the two rubber pads are always close together, thereby increasing the friction between the handle and the second circular plate, effectively preventing the handle from rotating on its own, and ensuring the stability of the gap width detector after position adjustment.

[0015] Preferably, a base plate is slidably connected to the lower side of the mounting plate, a first guide groove is provided on the upper surface of the base plate, and a second guide groove is provided on the lower surface of the mounting plate. The first guide groove and the second guide groove are staggered, and a second threaded rod is rotatably connected inside both the first guide groove and the second guide groove.

[0016] By adopting the above technical solution, and by setting two second threaded rods inside the first guide groove and the second guide groove, external dust or debris can be effectively prevented from adhering to the surface of the second threaded rods under the cover of the base plate and the mounting plate.

[0017] Preferably, the two second threaded rods are fitted with guide blocks on their external threads, the lower side of the guide blocks is slidably connected to the inside of the first guide groove, and the upper side of the guide blocks is slidably connected to the inside of the second guide groove.

[0018] By adopting the above technical solution and utilizing the cooperation of the second threaded rod and the guide block, the position of the gap width detector can be finely adjusted, effectively improving the flexibility of the device.

[0019] Preferably, the front surface of the mounting plate and the left side surface of the base plate are rotatably connected to operating rods, and the two operating rods respectively rotatably penetrate into the interior of the mounting plate and the base plate, and the two operating rods are respectively fixedly connected to two second threaded rods.

[0020] By adopting the above technical solution, the second threaded rod can be rotated by rotating the operating lever, thereby effectively improving the convenience for staff to fine-tune the position of the gap width detector.

[0021] Compared with the prior art, this utility model provides a device for detecting the width of cracks in building structures, which has the following beneficial effects:

[0022] 1. This building structure crack width detection equipment, through the cooperation of a rotating disc, a first threaded rod, a rotating shaft, gears, and teeth, achieves the adjustment and rotation of the crack width detector's height, thereby enabling the detection of crack width in curved building structures. It also effectively isolates external pollutants such as dust, mud, and moisture from intrusion, avoiding wear, jamming, and corrosion problems caused by foreign objects. This significantly improves the reliability, durability, and service life of the transmission system, allowing it to adapt to harsher and more complex construction site environments and enhancing the overall practicality of the device.

[0023] 2. The building structure crack width detection equipment effectively ensures the stability of the rotating shaft through the cooperation between the handle, return spring, synchronization plate, synchronization groove, rubber pad and other structures, effectively avoids the handle from rotating on its own, and further improves the stability of the device.

[0024] 3. This building structure crack width detection equipment, through the cooperation between the second threaded rod, guide block and other structures, realizes the fine adjustment of the position of the crack width detector, which further improves the flexibility of the device. It does not require the staff to move the whole device, and has high practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a building structure crack width detection device according to the present invention;

[0026] Figure 2 This is a cross-sectional view of the second circular plate of this utility model;

[0027] Figure 3 This is a cross-sectional view of the second circular plate of this utility model;

[0028] Figure 4 This is a cross-sectional structural diagram of the fixing column of this utility model;

[0029] Figure 5 This is a cross-sectional structural diagram of the base plate of this utility model.

[0030] In the diagram: 1. Mounting plate; 2. Fixing post; 3. First circular plate; 4. Second circular plate; 5. Mounting groove; 6. Rotating ring; 7. Tooth; 8. Rotating shaft; 9. Gear;

[0031] 10. Lifting column; 11. First threaded rod; 12. Through groove; 13. Rotating disc; 14. Handle; 15. Movable chamber; 16. Synchronization groove; 17. Synchronization plate; 18. Return spring;

[0032] 19. Rubber pad; 20. Support rod; 21. Gap width measuring instrument; 22. Base plate; 23. First guide groove; 24. Second guide groove; 25. Guide block; 26. Operating rod; 27. Second threaded rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5 This utility model provides a technical solution: a building structure crack width detection device, including a mounting plate 1, a fixed column 2 for support fixedly connected to the upper surface of the mounting plate 1, a first circular plate 3 fixedly sleeved on the outside of the fixed column 2, a second circular plate 4 provided on the upper side of the first circular plate 3, an installation groove 5 extending out of its circumference for installation provided inside the second circular plate 4, a rotating ring 6 for sealing the installation groove 5 rotatably connected inside the installation groove 5, a crack width detector 21 for detecting the crack width fixedly connected to the surface of the rotating ring 6, a tooth 7 for transmission fixedly connected to the side surface of the rotating ring 6 away from the crack width detector 21, a rotating shaft 8 for support rotatably connected inside the installation groove 5, a gear 9 for transmission fixedly sleeved on the outside of the rotating shaft 8, the gear 9 and the tooth 7 meshing and connected, a lifting component provided inside the fixed column 2, the lower end of the rotating shaft 8 rotatably penetrates through the lower surface of the second circular plate 4, and a locking component provided outside the rotating shaft 8.

[0035] The gap width detector 21 is an existing structure, and for details, please refer to the patent published in CN220082607U. The gap width detector 21 in this solution has the same structure and principle as the existing technology. Since it is a conventional technology in this field, it will not be described in detail here.

[0036] The lifting assembly includes a lifting column 10, which is slidably sleeved inside a fixed column 2. A first threaded rod 11 for transmission is rotatably connected inside the fixed column 2. The lifting column 10 is threadedly sleeved outside the first threaded rod 11. The rotation of the first threaded rod 11 can drive the lifting column 10 to slide inside the fixed column 2. The upper end of the lifting column 10 is fixedly connected to a second circular plate 4. Four support rods 20 for supporting the second circular plate 4 are rotatably connected to the surface of the first circular plate 3 via shafts. The ends of the four support rods 20 away from the first circular plate 3 are rotatably connected to the lower surface of the second circular plate 4 via shafts. By placing the first threaded rod 11 inside the fixed column 2, the adhesion of external dust or debris to the surface of the first threaded rod 11 is effectively avoided, thereby effectively extending the service life of the first threaded rod 11 and ensuring the transmission efficiency of the first threaded rod 11. At the same time, the setting of the four support rods 20 further improves the support effect on the second circular plate 4.

[0037] The surface of the fixed column 2 is provided with a through groove 12 that communicates with the interior of the fixed column 2. The interior of the through groove 12 is provided with a rotating disk 13 for the operator to rotate the first threaded rod 11. The rotating disk 13 is fixedly sleeved on the outside of the first threaded rod 11. The surface of the rotating disk 13 is also provided with anti-slip grooves to increase the friction with the hand. With the cooperation between the through groove 12, the rotating disk 13 and the anti-slip grooves on its surface, it is easy for the operator to drive the first threaded rod 11 to rotate, and the friction between it and the rotating disk 13 is effectively increased, effectively preventing the hand from slipping out.

[0038] The locking assembly includes a handle 14, which has an internal movable chamber 15 for providing movement space. The handle 14 is movably fitted onto the outside of the rotating shaft 8 through the movable chamber 15. The inner wall of the movable chamber 15 has a synchronization groove 16. One end of the rotating shaft 8 located inside the movable chamber 15 is fixedly connected to a synchronization plate 17 for cooperating with the synchronization groove 16. The synchronization plate 17 is slidably connected inside the synchronization groove 16. When the operator rotates the handle 14, the rotating shaft 8 is driven to rotate under the action of the synchronization groove 16 and the synchronization plate 17. The rotating shaft 8 drives the gear 9 to rotate, and the engagement between the gear 9 and the teeth 7 drives the rotating ring 6 to rotate, thereby driving the gap width detector 21 to rotate. This ultimately enables the detection of gap width in the curved building structure. The engagement between the handle 14 and the anti-slip grooves on its surface facilitates the operation of the gap width detector 21, making it easy to rotate and requiring no additional power source or complex wiring.

[0039] A return spring 18 is fixedly connected between the upper surface of the synchronization plate 17 and the top wall of the movable chamber 15 to ensure the stability of the grip 14. The return spring 18 is movably sleeved on the outside of the rotating shaft 8. Rubber pads 19 are provided on the side surfaces of the grip 14 and the second circular plate 4 that are close to each other to increase the friction between the grip 14 and the second circular plate 4. With the cooperation between the return spring 18 and the rubber pads 19, the two rubber pads 19 are effectively kept close to each other, thereby increasing the friction between the grip 14 and the second circular plate 4, effectively preventing the grip 14 from rotating on its own, and ensuring the stability of the gap width detector 21 after position adjustment.

[0040] A base plate 22 is slidably connected to the lower side of the mounting plate 1. The upper surface of the base plate 22 is provided with a first guide groove 23 for limiting the movement trajectory of the structure, and the lower surface of the mounting plate 1 is provided with a second guide groove 24 for limiting the movement trajectory. The first guide groove 23 and the second guide groove 24 are staggered. The interior of the first guide groove 23 and the second guide groove 24 are rotatably connected with a second threaded rod 27 for transmission. By setting the two second threaded rods 27 inside the first guide groove 23 and the second guide groove 24, the external dust or debris can be effectively prevented from adhering to the surface of the second threaded rods 27 under the cover of the base plate 22 and the mounting plate 1.

[0041] Two second threaded rods 27 are threaded with guide blocks 25 for connection. The lower side of the guide block 25 is slidably connected to the inside of the first guide groove 23, and the upper side of the guide block 25 is slidably connected to the inside of the second guide groove 24. When the second threaded rod 27 located inside the first guide groove 23 rotates, it can drive the guide block 25 to slide inside the first guide groove 23. At this time, with the cooperation of the guide block 25 and the second guide groove 24, the mounting plate 1 will slide left and right on the upper side of the base plate 22, thereby realizing the fine adjustment of the position of the gap width detector 21 in the left and right direction. When the second threaded rod 27 inside the second guide groove 24 rotates, with the help of the cooperation of the guide block 25 and the first guide groove 23, the mounting plate 1 will move back and forth on the upper side of the base plate 22, ultimately realizing the fine adjustment of the position of the gap width detector 21 in the back and forth direction.

[0042] Both the front surface of the mounting plate 1 and the left side surface of the base plate 22 are rotatably connected to operating rods 26 for easy gripping by the operator. The two operating rods 26 are respectively rotatably inserted into the interior of the mounting plate 1 and the base plate 22. The two operating rods 26 are respectively fixedly connected to two second threaded rods 27. By rotating the operating rods 26, the second threaded rods 27 can be rotated, thereby effectively improving the convenience for the operator to fine-tune the position of the gap width detector 21.

[0043] Working principle:

[0044] When using this building structure crack width detection device, by pulling down the handle 14, the handle 14 will slide outside the rotating shaft 8, and the return spring 18 will undergo elastic deformation, thereby separating the two rubber pads 19. Then, by rotating the handle 14, the operator can drive the rotating shaft 8 to rotate under the action of the synchronous groove 16 and the synchronous plate 17. The rotating shaft 8 drives the gear 9 to rotate, and then the gear 9 and the teeth 7 will drive the rotating ring 6 to rotate, thereby driving the crack width detector 21 to rotate, and finally realizing the crack width detection of the arc-shaped building structure.

[0045] When there is no need to rotate the gap width detector 21, the handle 14 can be released and the two rubber pads 19 can be squeezed again by the reset spring 18, thereby ensuring the stability of the handle 14 when no force is applied.

[0046] When it is necessary to adjust the height of the gap width detector 21, the finger or palm is in contact with the rotating disk 13, causing the rotating disk 13 to rotate inside the through groove 12. The rotation of the rotating disk 13 drives the rotation of the first threaded rod 11, which in turn drives the lifting column 10 to slide inside the fixed column 2. This, in turn, drives the second circular plate 4 to rise and fall, ultimately achieving the adjustment of the height of the gap width detector 21. In addition, when the second circular plate 4 rises and falls, the four support rods 20 will rotate synchronously, thus always providing support for the second circular plate 4.

[0047] When the position of the gap width detector 21 needs to be fine-tuned, the second threaded rod 27 is rotated by rotating the operating lever 26. When the second threaded rod 27, located inside the first guide groove 23, rotates, it can drive the guide block 25 to slide inside the first guide groove 23. At this time, with the cooperation of the guide block 25 and the second guide groove 24, the mounting plate 1 will slide left and right on the upper side of the base plate 22, thereby achieving fine-tuning of the position of the gap width detector 21 in the left and right direction. When the second threaded rod 27 inside the second guide groove 24 rotates, with the cooperation of the guide block 25 and the first guide groove 23, the mounting plate 1 will move back and forth on the upper side of the base plate 22, ultimately achieving fine-tuning of the position of the gap width detector 21 in the back and forth direction.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the width of cracks in building structures, comprising a mounting plate (1), characterized in that: A fixing post (2) is fixedly connected to the upper surface of the mounting plate (1). A first circular plate (3) is fixedly sleeved on the outside of the fixing post (2). A second circular plate (4) is provided on the upper side of the first circular plate (3). An installation groove (5) extending out of the circumference of the second circular plate (4) is opened inside the second circular plate (4). A rotating ring (6) is rotatably connected inside the installation groove (5). A gap width detector (21) is fixedly connected to the surface of the rotating ring (6). The rotating ring (6) has teeth (7) fixedly connected to the side surface away from the gap width detector (21). The mounting groove (5) is rotatably connected to a rotating shaft (8). A gear (9) is fixedly sleeved on the outside of the rotating shaft (8). The gear (9) and the teeth (7) mesh with each other. A lifting component is provided inside the fixed column (2). The lower end of the rotating shaft (8) rotates through the lower surface of the second circular plate (4). A locking component is provided on the outside of the rotating shaft (8).

2. The building structure crack width detection device according to claim 1, characterized in that: The lifting assembly includes a lifting column (10), which is slidably sleeved inside a fixed column (2). A first threaded rod (11) is rotatably connected inside the fixed column (2). The lifting column (10) is threadedly sleeved outside the first threaded rod (11). The upper end of the lifting column (10) is fixedly connected to a second circular plate (4). Four support rods (20) are rotatably connected to the surface of the first circular plate (3) via a shaft. The ends of the four support rods (20) away from the first circular plate (3) are respectively rotatably connected to the lower surface of the second circular plate (4) via a shaft.

3. The building structure crack width detection device according to claim 2, characterized in that: The surface of the fixed column (2) is provided with a through groove (12) that communicates with the interior of the fixed column (2). A rotating disk (13) is provided inside the through groove (12). The rotating disk (13) is fixedly sleeved on the outside of the first threaded rod (11). The surface of the rotating disk (13) is also provided with an anti-slip groove.

4. The building structure crack width detection device according to claim 3, characterized in that: The locking assembly includes a grip (14), which has a movable chamber (15) inside. The grip (14) is movably sleeved on the outside of the rotating shaft (8) through the movable chamber (15). The inner wall of the movable chamber (15) has a synchronization groove (16). One end of the rotating shaft (8) located inside the movable chamber (15) is fixedly connected to a synchronization plate (17), which is slidably connected inside the synchronization groove (16).

5. The building structure crack width detection device according to claim 4, characterized in that: A return spring (18) is fixedly connected between the upper surface of the synchronization plate (17) and the top wall of the movable chamber (15). The return spring (18) is movably sleeved on the outside of the rotating shaft (8). Rubber pads (19) are provided on the side surface of the handle (14) and the second circular plate (4) that are close to each other.

6. The building structure crack width detection device according to claim 5, characterized in that: The mounting plate (1) is slidably connected to a base plate (22). The upper surface of the base plate (22) is provided with a first guide groove (23), and the lower surface of the mounting plate (1) is provided with a second guide groove (24). The first guide groove (23) and the second guide groove (24) are staggered. The interior of the first guide groove (23) and the second guide groove (24) is rotatably connected with a second threaded rod (27).

7. The building structure crack width detection device according to claim 6, characterized in that: The two second threaded rods (27) are fitted with guide blocks (25) on their external threads. The lower side of the guide block (25) is slidably connected to the inside of the first guide groove (23), and the upper side of the guide block (25) is slidably connected to the inside of the second guide groove (24).

8. The building structure crack width detection device according to claim 7, characterized in that: The front surface of the mounting plate (1) and the left side surface of the base plate (22) are rotatably connected to operating rods (26). The two operating rods (26) are respectively rotatably inserted into the interior of the mounting plate (1) and the base plate (22), and the two operating rods (26) are respectively fixedly connected to two second threaded rods (27).

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