Building external wall crack detection device
By designing a crack detection device for building exterior walls with supporting blocks and memory metal plates, the problem of low accuracy of the detection results of existing devices is solved, and accurate measurement of crack width and depth is achieved.
Patent Information
- Application Number
- CN202510750426.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2025-08-19
AI Technical Summary
Existing crack detection devices generally only detect the size of the gap on the outermost side of the crack, resulting in low accuracy of the detection results, and inaccurate placement angle of the detection parts also affect the accuracy of the detection results.
A crack detection device for building exterior walls is designed, including supporting blocks, memory metal plates, scale plates, gears and pointers. By placing the support blocks parallel to the wall, the scale plates extend into the cracks, the memory metal plates and gear systems are used to measure the gap widths at different depths, and accurately detect them is achieved by combining a level and a dial.
Accurate measurement of cracks in the exterior wall of the building is achieved, and the width and depth of the cracks can be accurately detected, improving the accuracy of the detection results.
Smart Images
Figure CN120506868A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of building exterior wall detection, in particular to a building exterior wall crack detection device. Background Art
[0002] Wall cracks are cracks that occur in the wall part of a building structure. According to the different materials themselves, they can be divided into concrete wall cracks, brick wall cracks, new partition board cracks and cracks caused by walls of different materials. Detecting wall cracks is one of the important items in the building acceptance process. Generally, wall cracks are detected through crack detection devices.
[0003] Existing crack detection devices generally only detect the size of the outermost gap of the crack, and the detection results are relatively simple, which will affect the accuracy of the detection results. In addition, inaccurate placement angles of the detection parts will also affect the accuracy of the detection results. To address the above problems, existing equipment needs to be improved. Summary of the Invention
[0004] The purpose of the present invention is to provide a device for detecting cracks in building exterior walls, so as to solve the problem proposed in the above-mentioned background technology that the existing crack detection devices generally only detect the size of the cracks on the outermost side, and the detection results are relatively simple, which affects the accuracy of the detection results, and the inaccurate placement angle of the detection parts will also affect the accuracy of the detection results.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A device for detecting cracks in the exterior wall of a building, comprising a support block and a memory metal plate, a fixed block being fixed on one side of the support block, a spirit level being fixed on the other side of the support block, a placing mechanism being fixed on the bottom of the support block, the placing mechanism passing through the support block, a movable plate being slidably connected to one side of the support block, a scale plate passing through the support block, and a second handle being fixed to the bottom of the scale plate.
[0006] A second channel is provided on the scale plate, the memory metal plate passes through the second channel and is connected to the pressing plate, a toothed plate is fixed on one side of the pressing plate, the top of the scale plate is rotatably connected to a third gear, the third gear is meshed with the bottom of the toothed plate, a pointer is fixed on the front side of the third gear, a dial is fixed on the top of the scale plate, and the pointer passes through the dial.
[0007] Preferably, the placement mechanism includes a first handle, and the first handle is fixed to the bottom of the support block, grooves are symmetrically provided on both sides of the first handle, and clamping holes are symmetrically provided on both sides of the first handle, and the clamping holes are connected to the grooves.
[0008] By adopting the above technical solution, cracks can be detected after holding the support block with the first handle and making it parallel to the wall.
[0009] Preferably, a first channel is formed at the bottom of the first handle and the support block, and a first piston is slidably connected to the head end of the first channel. Shrapnel are symmetrically fixed on both sides of the first piston, and the shrapnel extends into the groove.
[0010] By adopting the above technical solution, when the first piston is moved upward, the spring piece will automatically bounce into the spring piece after it aligns with the locking hole, thereby conveniently locking the first piston.
[0011] Preferably, a first slide groove is provided in the support block, and the first slide groove is connected to the end of the first channel. A second piston is slidably connected in the first slide groove, and a support plate is fixed on the top of the second piston. The support plate is connected to the support block through a tension spring.
[0012] By adopting the above technical solution, when the first piston moves upward, the second piston and the abutment plate move upward.
[0013] Preferably, second sliding grooves are symmetrically provided on both sides of the support block, and a movable plate is slidably connected in the second sliding groove.
[0014] By adopting the above technical solution, the support plate can move up to tightly fix the movable plate.
[0015] Preferably, a movable stop block is fixed to one end of the movable plate, and the movable stop block is connected to the support block via a compression spring, and the movable stop block passes through one side of the support block.
[0016] By adopting the above technical solution, when the movable plate is pressed and fixed by the abutment plate, the movable abutment block is also fixed.
[0017] Preferably, a screw rod is rotatably connected inside the support block, and the screw rod passes through the bottom of the support block and is connected to the knob, and the movable plate is threadedly connected to the outside of the screw rod.
[0018] By adopting the above technical solution, when the screw rod rotates, the movable plate moves downward, and the crack width can be understood by measuring the downward movement distance of the movable plate.
[0019] Preferably, a first gear is fixed to the outer side of the screw rod, a second gear is rotatably connected inside the support block, and the second gear is meshed and connected to one side of the first gear.
[0020] By adopting the above technical solution, the rotation of the screw rod can drive the first gear to rotate, and the second gear rotates accordingly.
[0021] Preferably, the second gear passes through the other side of the support block, and a scale ring is fixed on the upper end surface of the second gear.
[0022] By adopting the above technical solution, when the second gear rotates, the downward movement distance of the movable plate can be understood by observing the scale circle.
[0023] Compared with the prior art, the present invention has the following beneficial effects: The device for detecting cracks in the building's exterior wall can be placed parallel to the wall surface through the coordinated use of a support block, a fixed stop block, a spirit level, a first piston, a second piston, a stop plate, a movable plate, a movable stop block, a movable plate, and a scale plate. When the support block is pressed against the exterior wall, both the fixed stop block and the movable stop block press against the wall surface, the movable plate and the scale plate extend into the crack, the scale plate presses against the top of the crack, and the movable stop block is retractable. By observing the spirit level, the support block is adjusted to be parallel to the wall surface, and then the first piston is pushed upward, the second piston and the stop plate move upward and press against and fix the movable plate, and the movable stop block is locked.
[0024] 2. The building exterior wall crack detection device can achieve the purpose of measuring the width of the gap through the mutual use of the provided screw, first gear, second gear, scale ring and movable plate. After the device is placed against the wall, the screw can be rotated by hand, and the movable plate moves downward and rests against the bottom of the crack. The rotation of the screw can drive the first gear to rotate, and the second gear to rotate. The downward movement distance can be understood by passing through the scale ring, thereby understanding the width of the crack.
[0025] 3. The building exterior wall crack detection device can measure the width of cracks at different depths through the coordinated use of the scale plate, memory metal plate, pressure plate, tooth plate, third gear, pointer and dial. The scale plate can be moved to the right and extended into the crack, and then the pressure plate can be pushed. The memory metal plate moves accordingly and eventually rests on the bottom of the crack. The rightward movement of the tooth plate drives the third gear and pointer to rotate. By observing whether the pointer is aligned with the scale on the dial, the movement distance of the memory metal plate can be understood, which facilitates the detection of the width of cracks at different depths and makes the detection results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 It is a rear perspective structural diagram of the present invention; Figure 3 It is a schematic diagram of the front cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the connection structure of the support block, level, placement mechanism, screw rod, knob, first gear and second gear of the present invention; Figure 5 Schematic diagram of the connection structure of the support block, the abutment plate, the second slide groove, the movable plate, the movable abutment block, the compression spring and the screw rod of the present invention; Figure 6 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.
[0027] In the figure: 1. Support block; 2. Fixed block; 3. Level; 4. Placement mechanism; 401. First handle; 402. Groove; 403. Clamping hole; 404. First piston; 405. Shrapnel; 406. First channel; 407. First slide; 408. Second piston; 409. Plate; 410. Extension spring; 411. Second slide; 412. Movable plate; 413. Movable block; 414. Compression spring; 5. Screw; 6. Knob; 7. First gear; 8. Second gear; 9. Scale ring; 10. Moving plate; 11. Third slide; 12. Scale plate; 13. Second handle; 14. Second channel; 15. Memory metal plate; 16. Pressing plate; 17. Tooth plate; 18. Third gear; 19. Pointer; 20. Scale dial. DETAILED DESCRIPTION
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0029] See also Figures 1 to 6 The present invention provides a technical solution: a building exterior wall crack detection device, including a support block 1 and a memory metal plate 15, a fixed block 2 is fixed to one side of the support block 1, a spirit level 3 is fixed to the other side of the support block 1, a placement mechanism 4 is fixed to the bottom of the support block 1, the placement mechanism 4 passes through the support block 1, a movable plate 10 is slidably connected to one side of the support block 1, a scale plate 12 passes through the support block 1, and a second handle 13 is fixed to the bottom of the scale plate 12.
[0030] A second channel 14 is provided on the scale plate 12, a memory metal plate 15 passes through the second channel 14 and is connected to a pressing plate 16, a tooth plate 17 is fixed to one side of the pressing plate 16, the top of the scale plate 12 is rotatably connected to a third gear 18, the third gear 18 is meshed with the bottom of the tooth plate 17, a pointer 19 is fixed on the front side of the third gear 18, a dial 20 is fixed to the top of the scale plate 12, and the pointer 19 passes through the dial 20.
[0031] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6As shown, the placement mechanism 4 includes a first handle 401, and the first handle 401 is fixed to the bottom of the support block 1. Grooves 402 are symmetrically provided on both sides of the first handle 401. Clamping holes 403 are symmetrically provided on both sides of the first handle 401, and the clamping holes 403 are connected to the grooves 402. After holding the support block 1 by holding the first handle 401, the fixed block 2 can be placed against the wall. Then, the angle of the support block 1 can be adjusted by observing the spirit level 3 so that the support block 1 can be parallel to the wall, which is convenient for subsequent crack detection.
[0032] In this embodiment, Figure 1 、 Figure 3 、 Figure 4 and Figure 6 As shown, a first channel 406 is provided at the bottom of the first handle 401 and the support block 1, and the head end of the first channel 406 is slidably connected to the first piston 404, and spring pieces 405 are symmetrically fixed on both sides of the first piston 404, and the spring pieces 405 extend into the groove 402. After holding the support block 1 with the first handle 401 and placing the fixed block 2 against the wall, the angle of the support block 1 is adjusted to make it parallel to the wall, and then the first piston 404 can be manually pushed upward, and the spring piece 405 moves upward and finally bounces into the card hole 403, thereby achieving the locking effect.
[0033] In this embodiment, Figure 3 and Figure 4 As shown, a first slide groove 407 is provided in the support block 1, and the first slide groove 407 is connected to the end of the first channel 406, and a second piston 408 is slidably connected in the first slide groove 407, and a push plate 409 is fixed on the top of the second piston 408, and the push plate 409 is connected to the support block 1 through a tension spring 410. Hydraulic oil is stored in the first channel 406. When the first piston 404 is manually pushed upward, the second piston 408 moves upward under the action of the oil pressure, thereby driving the push plate 409 to move upward. After pinching the first handle 401 and retracting the spring 405 into the groove 402, the second piston 408 and the push plate 409 will automatically move downward under the action of the tension spring 410, and the first piston 404 will automatically reset.
[0034] In this embodiment, Figure 3 、 Figure 4 and Figure 5 As shown, second sliding grooves 411 are symmetrically opened on both sides of the support block 1, and a movable plate 412 is slidably connected in the second sliding groove 411. The movable plate 412 can move left and right. When the first piston 404 is pushed up, the second piston 408 and the support plate 409 move up to facilitate locking the movable plate 412.
[0035] In this embodiment, Figure 3 、 Figure 4 and Figure 5As shown, a movable stop block 413 is fixed to one end of the movable plate 412, and the movable stop block 413 is connected to the support block 1 through a compression spring 414. The movable stop block 413 passes through one side of the support block 1. The movable plate 412 and the movable stop block 413 can move left and right, which is convenient for adjusting the support block 1 and placing it parallel to the wall.
[0036] In this embodiment, Figure 3 and Figure 4 As shown, a screw rod 5 is rotatably connected inside the support block 1, and the screw rod 5 passes through the bottom of the support block 1 and is connected to the knob 6. The movable plate 10 is threadedly connected to the outside of the screw rod 5. When the knob 6 is held and the screw rod 5 is rotated, the scale plate 12 needs to be extended into the crack of the outer wall and rest against the top of the crack when placing the support block 1. The movable plate 10 can slide downward under the limiting action of the screw rod 5 and the third sliding groove 11. The movable plate 10 finally rests against the bottom of the crack. The moving distance of the movable plate 10 determines the width of the crack.
[0037] In this embodiment, Figure 2 、 Figure 3 and Figure 4 As shown, a first gear 7 is fixed to the outside of the screw rod 5, and a second gear 8 is rotatably connected inside the support block 1, and the second gear 8 is meshed and connected to one side of the first gear 7. When the screw rod 5 rotates, the first gear 7 rotates and drives the second gear 8 to rotate.
[0038] In this embodiment, Figure 2 、 Figure 3 and Figure 4 As shown, the second gear 8 passes through the other side of the support block 1, and a scale ring 9 is fixed on the upper end face of the second gear 8. The screw rod 5 rotates to drive the movable plate 10 to move downward. At this time, the first gear 7 rotates to drive the second gear 8 to rotate. By observing the scale ring 9, the downward movement distance of the movable plate 10 can be understood, thereby understanding the width of the crack.
[0039] The use method and advantages of the present invention: The working process of the building exterior wall crack detection device is as follows: like Figures 1 to 6As shown: first, hold the first handle 401 to hold the support block 1 and align the scale plate 12 with the crack, and place the fixed block 2 and the movable block 413 against the wall. Adjust the extended length of the movable block 413 by observing the level 3 so that the support block 1 is parallel to the wall. Then push the first piston 404 upward. Hydraulic oil is stored in the first channel 406. The second piston 408 moves upward under the action of the oil pressure, and the plate 409 moves upward accordingly and presses against the movable plate 412. The movable block 413 is locked. At this time, the spring piece 405 automatically bounces into the card hole 403, the first piston 404 is locked, the second piston 408 and the plate 409 are locked, and then hold the knob 6 to rotate the screw rod 5. The movable plate 10 moves down and finally presses against the bottom of the crack, and the scale plate 12 presses against the crack. At the top of the crack, the screw rod 5 rotates to drive the first gear 7 to rotate, thereby driving the second gear 8 to rotate. By observing the scale ring 9, the downward movement distance of the movable plate 10 can be understood, thereby understanding the width of the crack. After that, the second handle 13 is held and the scale plate 12 is pushed to the right, and then the pressing plate 16 is pushed to the right. The memory metal plate 15 moves and presses against the bottom of the crack. At the same time, the tooth plate 17 moves to the right to drive the third gear 18 to rotate, and the pointer 19 rotates. By observing the pointer 19 aligned with the value on the dial 20, the movement distance of the memory metal plate 15 can be understood, thereby understanding the width of the crack at different depths. After pinching the first handle 401 and retracting the spring 405 into the groove 402, the second piston 408 and the abutment plate 409 will automatically bounce down under the action of the tension spring 410, and the first piston 404 will automatically reset.
[0040] In summary, the building exterior wall crack detection device achieves the purpose of being placed parallel to the wall surface and measuring the width of cracks of different depths, meeting people's usage needs.
[0041] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
[0042] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the protection content of the present invention.
[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A building exterior wall crack detection device, comprising a support block (1) and a memory metal plate (15), characterized in that: A fixed stop block (2) is fixed on one side of the support block (1), a level (3) is fixed on the other side of the support block (1), a placement mechanism (4) is fixed on the bottom of the support block (1), the placement mechanism (4) passes through the support block (1), a movable plate (10) is slidably connected to one side of the support block (1), a scale plate (12) passes through the support block (1), and a second handle (13) is fixed on the bottom of the scale plate (12); The scale plate (12) is provided with a second channel (14), the memory metal plate (15) passes through the second channel (14) and is connected to the pressing plate (16), a tooth plate (17) is fixed on one side of the pressing plate (16), the top of the scale plate (12) is rotatably connected to a third gear (18), the third gear (18) is meshed and connected to the bottom of the tooth plate (17), a pointer (19) is fixed on the front side of the third gear (18), a dial (20) is fixed on the top of the scale plate (12), and the pointer (19) passes through the dial (20).
2. A building exterior wall crack detection device according to claim 1, characterized in that: The placement mechanism (4) comprises a first handle (401), and the first handle (401) is fixed to the bottom of the support block (1), grooves (402) are symmetrically provided on both sides of the first handle (401), and clamping holes (403) are symmetrically provided on both sides of the first handle (401), and the clamping holes (403) are connected to the grooves (402).
3. A building exterior wall crack detection device according to claim 2, characterized in that: A first channel (406) is provided at the bottom of the first handle (401) and the support block (1), and a first piston (404) is slidably connected to the head end of the first channel (406). Shrapnel (405) is symmetrically fixed on both sides of the first piston (404), and the shrapnel (405) extends into the groove (402).
4. A building exterior wall crack detection device according to claim 3, characterized in that: A first slide groove (407) is provided in the support block (1), and the first slide groove (407) is connected to the end of the first channel (406). A second piston (408) is slidably connected in the first slide groove (407), and a support plate (409) is fixed on the top of the second piston (408). The support plate (409) is connected to the support block (1) via a tension spring (410).
5. The building exterior wall crack detection device according to claim 1, characterized in that: Second sliding grooves (411) are symmetrically provided on both sides of the support block (1), and a movable plate (412) is slidably connected in the second sliding groove (411).
6. A building exterior wall crack detection device according to claim 5, characterized in that: A movable stop block (413) is fixed to one end of the movable plate (412), and the movable stop block (413) is connected to the support block (1) via a compression spring (414), and the movable stop block (413) passes through one side of the support block (1).
7. The building exterior wall crack detection device according to claim 1, characterized in that: A screw rod (5) is rotatably connected inside the support block (1), and the screw rod (5) passes through the bottom of the support block (1) and is connected to the knob (6), and the movable plate (10) is threadedly connected to the outside of the screw rod (5).
8. The device for detecting cracks in a building exterior wall according to claim 7, characterized in that: A first gear (7) is fixed on the outside of the screw rod (5), a second gear (8) is rotatably connected inside the support block (1), and the second gear (8) is meshedly connected to one side of the first gear (7).
9. The device for detecting cracks in a building exterior wall according to claim 8, characterized in that: The second gear (8) passes through the other side of the support block (1), and a scale ring (9) is fixed on the upper end surface of the second gear (8).