Handheld portable wall crack measuring scale
By designing components such as the mounting shell, bidirectional threaded rod, threaded plate, and measuring motor, the problem of cumbersome operation of existing wall crack measuring rulers is solved, enabling convenient and accurate multi-position measurement, and improving measurement accuracy and stability.
Patent Information
- Application Number
- CN202520202535.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing wall crack measuring rulers have a simple structure but are cumbersome to operate, making them difficult to adjust and fix conveniently at different locations, which affects measurement accuracy.
The design incorporates components such as a mounting shell, a two-way threaded rod, a threaded plate, a clamping plate, a measuring motor, and gears. The threaded rod drives the threaded plate and clamping plate to be fixed to the inner wall of the crack. The measuring motor drives the gears and rack to achieve relative movement of the scale. The measuring position is adjusted by a sliding column and a sliding locking rod. Combined with a fixing rod and a fixing nut, a rotary position switching is achieved to ensure measurement accuracy.
It enables precise measurement of wall cracks, allowing for multi-location measurements at different locations, improving the convenience and accuracy of measurement, and ensuring the stability and ease of operation of the measuring tool.
Smart Images
Figure CN223710481U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to wall construction technical field, concretely relates to a hand -held portable wall crack measuring scale. BACKGROUND
[0002] Wall construction refers to the construction and transformation process of the internal and external walls of the building, including multiple steps and links to ensure the structural stability, waterproof performance, thermal performance and aesthetics of the wall.
[0003] When the wall is constructed, it needs to be detected, whether cracks appear, when cracks appear, it needs to be measured and repaired in time, and the wall crack measuring mode is that the staff member measures by hand -held measuring scale, and the existing measuring scale structure is relatively simple, needs to take and adjust the position of the measuring scale when measuring at different positions, and the operation is cumbersome and inconvenient. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a hand -held portable wall crack measuring scale to solve the problems of the existing measuring scale structure being relatively simple, needing to take and adjust the position of the measuring scale when measuring at different positions, and the operation being cumbersome and inconvenient in the above background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a hand -held portable wall crack measuring scale, including installation shell, the inside rotation of installation shell is equipped with two -way screw rod, one end of two -way screw rod is equipped with hand wheel, the side surface of installation shell is equipped with handle, the both screw thread outer surfaces of two -way screw rod are equipped with screw thread plate, the side surface of screw thread plate is equipped with connecting block one, connecting block one passes through the strip -shaped slide of installation shell side surface and extends out installation shell and is equipped with the fixed mounting of top -tight plate, the side surface of installation shell is equipped with the swing of swing plate, the swing plate is equipped with a plurality of sliding columns that slide, one end of sliding column is equipped with the fixed mounting of connecting plate, the side surface of swing plate is equipped with the slide of sliding plate, the side surface of sliding plate is equipped with the fixed mounting of sliding lock rod, sliding lock rod is opposite sliding column and is equipped with the slide of swing plate, the other end of sliding column is equipped with the fixed mounting of measuring shell, the inner wall of measuring shell is equipped with the fixed mounting of measuring motor, the output shaft end of measuring motor is equipped with the fixed mounting of gear, the outer surface of gear is equipped with the meshing of two rack plates, two rack plates are opposite and are misaligned and are equipped with the slide of rack plate and extend out measuring shell, both ends positions of rack plate are equipped with the fixed mounting of connecting block two, the end of connecting block two is equipped with the fixed mounting of scale ruler, two scale rulers are opposite and are equipped with the fixed mounting of scale ruler, the observation opening of measuring shell is equipped with the fixed mounting of scale ruler and is used with scale ruler.
[0006] Using the above scheme, a mounting shell is used in conjunction with a two-way threaded rod, a threaded plate, and a clamping plate. The mounting shell is attached to the side of the wall to check if the wall is flat. The rotation of the two-way threaded rod drives the threaded plate to move through the connecting block, thereby causing the two clamping plates to move relative to each other and clamp against the inner wall of the crack, thus achieving a fixed installation of the entire measuring tool. The measuring motor inside the measuring shell drives the gear to rotate, and the relative movement of the two rack plates achieves the relative movement of the two scales, allowing the scales to move to the same side as the inner wall of the crack. The value between the scales and the same side of the inner wall of the crack can be viewed through the observation port, achieving accurate measurement operation. A fixing rod is used in conjunction with a fixing nut to adjust the rotation position of the rotating plate, achieving a rotary position switching measurement effect. The sliding column is used in conjunction with a sliding locking rod to adjust the distance between the measuring shell and the rotating plate, thereby allowing for horizontal adjustment of the measurement position and further enabling multi-position measurement of the width between the inner walls of the crack, ensuring good measurement accuracy.
[0007] In the above scheme, it should be noted that the measuring motor is electrically connected to an external power supply.
[0008] In a preferred embodiment, a limiting slider is fixedly installed on the side of the threaded plate, and a limiting groove is formed on the inner wall of the mounting shell, with the limiting slider slidably installed on the inner wall of the limiting groove.
[0009] By adopting the above scheme, the movement of the threaded plate can be supported and guided by the sliding of the limiting slider in the limiting groove, so that the threaded plate is not prone to tilting or swaying when it moves up and down under the rotation of the bidirectional threaded rod.
[0010] In a preferred embodiment, a fixing rod is fixedly installed on the side of the mounting shell, a through hole is provided on the rotating plate, the fixing rod passes through the through hole, the outer surface of the fixing rod has threads and a fixing nut is threadedly installed, and the fixing nut is fitted and arranged on the side of the rotating plate.
[0011] Using the above scheme, the fixing rod passes through the through hole and is used in conjunction with the fixing nut. When the fixing nut is loosened, the rotating plate is unlocked and can rotate around the fixing rod, thereby achieving rotary adjustment of the position for measuring the crack. After adjustment, the fixing nut is tightened to lock the position of the rotating plate.
[0012] In a preferred embodiment, a plurality of support rods are fixedly installed on the side of the rotating plate, the sliding plate is slidably installed on the outer surface of the support rods, a limit plate is fixedly installed at one end of the support rods, and springs are sleeved on the outside of the support rods, with their two ends respectively fixedly connected to the sliding plate and the limit plate.
[0013] Using the above solution, a support rod is used in conjunction with a sliding plate, a spring, and a limiting plate. The support rod can support and guide the sliding of the sliding plate, improving the smoothness of the movement. When the sliding plate drives the arc locking rod to move away from the sliding lock groove, the spring deforms. Therefore, the elastic force of the spring can be used to drive the sliding locking rod to quickly reset and insert into the sliding lock groove, achieving convenient locking. The limiting plate can prevent the sliding plate from detaching from the support rod when it slides.
[0014] In a preferred embodiment, a trapezoidal slider is fixedly installed on the side of the scale, and a trapezoidal groove is provided on the measuring housing for the trapezoidal slider to slide.
[0015] By using the above scheme, trapezoidal sliders in conjunction with trapezoidal grooves can support and limit the up and down movement of the rack plate, making the rack plate more stable during movement and less prone to tilting and wobbling.
[0016] In a preferred embodiment, limit plates are fixedly installed at both ends of the scale.
[0017] By adopting the above scheme, the setting of the limiting plate can play a limiting role and prevent the rack plate from sliding off the measuring housing.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This handheld portable wall crack measuring ruler is used in conjunction with a mounting shell, a two-way threaded rod, a threaded plate, and a top clamping plate. The mounting shell is attached to the side of the wall to check whether the wall is flat. The rotation of the two-way threaded rod drives the threaded plate to move through the connecting block, thereby causing the two top clamping plates to move relative to each other and press against the inner wall of the crack, thus achieving a fixed installation of the entire measuring tool. The measuring motor inside the measuring shell drives the gear to rotate, and the relative movement of the two rack plates achieves the relative movement of the two scales, so that the scales move to the same side as the inner wall of the crack. The value between the scales and the same side of the inner wall of the crack can be viewed through the observation port, achieving accurate measurement operation.
[0020] This handheld portable wall crack measuring ruler uses a fixed rod and a fixed nut to adjust the position of the rotating plate, achieving a rotary position switching measurement effect. By using a sliding column and a sliding locking rod, the distance between the measuring housing and the rotating plate can be adjusted, thereby allowing for horizontal adjustment of the measurement position. This enables multi-position measurement of the width between the inner walls of the crack, ensuring good measurement accuracy. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2This is a structural schematic diagram of the cross-section of the mounting shell of this utility model;
[0023] Figure 3 This is a structural schematic diagram of the threaded plate, connecting block 1, and tightening plate of this utility model;
[0024] Figure 4 This is a schematic diagram of the cross-section of the rotating plate of this utility model;
[0025] Figure 5 This is a schematic diagram of the cross-section of the measuring shell of this utility model;
[0026] Figure 6 This is a schematic diagram of the rack and scale of this utility model.
[0027] In the diagram: 1. Mounting housing; 2. Bidirectional threaded rod; 3. Threaded plate; 4. Connecting block one; 5. Tightening plate; 6. Rotating plate; 7. Sliding column; 8. Connecting plate; 9. Sliding plate; 10. Sliding locking rod; 11. Measuring housing; 12. Measuring motor; 13. Gear; 14. Rack plate; 15. Connecting block two; 16. Scale; 17. Observation port; 18. Limiting slider; 19. Fixing rod; 20. Fixing nut; 21. Support rod; 22. Limiting disc; 23. Spring; 24. Trapezoidal slide bar; 25. Limiting plate. Detailed Implementation
[0028] Please see Figures 1-6 This utility model provides a handheld portable wall crack measuring ruler, including a mounting shell 1. A bidirectional threaded rod 2 is rotatably mounted inside the mounting shell 1. A handwheel is fixedly mounted at one end of the bidirectional threaded rod 2. A handle is fixedly mounted on the side of the mounting shell 1. Threaded plates 3 are threaded onto the outer surfaces of both ends of the bidirectional threaded rod 2. A connecting block 4 is fixedly mounted on the side of the threaded plate 3. The connecting block 4 extends out of the mounting shell 1 through a strip-shaped slide rail on the side of the mounting shell 1 and is fixedly mounted with a top clamping plate 5. A rotating plate 6 is movably arranged on the side of the mounting shell 1. Several sliding columns 7 are slidably mounted on the rotating plate 6. A connecting plate 8 is fixedly mounted at one end of each sliding column 7. A sliding plate 9 is slidably mounted on the side of the rotating plate 6. A sliding locking rod 10 is mounted on a rotating plate 6, directly opposite the sliding column 7. A measuring housing 11 is fixedly mounted on the other end of the sliding column 7. A measuring motor 12 is fixedly mounted on the inner wall of the measuring housing 11. A gear 13 is fixedly mounted on the end of the output shaft of the measuring motor 12. Two rack plates 14 are meshed on the outer surface of the gear 13. The two rack plates 14 are staggered relative to each other and slide through and extend out of the measuring housing 11. Connecting blocks 2 15 are fixedly mounted at both ends of the rack plates 14. A scale 16 is fixedly mounted at the end of the connecting blocks 2 15. The two scales 16 are staggered. An observation port 17 is provided on the measuring housing 11 and is used in conjunction with the scale 16.
[0029] By using the mounting shell 1 in conjunction with the bidirectional threaded rod 2, the threaded plate 3, and the clamping plate 5, the mounting shell 1 can be attached to the side of the wall to check whether the wall is flat. The rotation of the bidirectional threaded rod 2 drives the threaded plate 3 to move the clamping plate 5 through the connecting block 4, thereby causing the two clamping plates 5 to move relative to each other and clamp against the inner wall of the crack, thus achieving the fixed installation of the entire measuring tool. The measuring motor 12 inside the measuring shell 11 drives the gear 13 to rotate, and the relative movement of the two rack plates 14 achieves the relative movement of the two scales 16, allowing the scales 16 to move. The plate 16 is aligned with the inner wall of the crack, and the value between the scale 16 and the inner wall of the crack is viewed through the observation port 17 to achieve accurate measurement. The fixed rod 19 is used in conjunction with the fixed nut 20 to adjust the position of the rotating plate 6, achieving a rotary position switching measurement effect. The sliding column 7 is used in conjunction with the sliding locking rod 10 to adjust the distance between the measuring housing 11 and the rotating plate 6, thereby allowing for horizontal adjustment of the measurement position and further enabling multi-position measurement of the width between the inner walls of the crack, ensuring good measurement accuracy.
[0030] A limiting slider 18 is fixedly installed on the side of the threaded plate 3. A limiting groove is opened on the inner wall of the mounting shell 1. The limiting slider 18 is slidably installed on the inner wall of the limiting groove. By using the limiting slider 18 to slide in the limiting groove, the movement of the threaded plate 3 can be supported and guided, so that the threaded plate 3 is not prone to tilting or shaking when it moves up and down under the rotation of the bidirectional threaded rod 2.
[0031] A fixing rod 19 is fixedly installed on the side of the mounting shell 1. A through hole is provided on the rotating plate 6. The fixing rod 19 passes through the through hole. The outer surface of the fixing rod 19 has threads and a fixing nut 20 is installed on the threads. The fixing nut 20 is fitted and arranged on the side of the rotating plate 6. The fixing rod 19 passes through the through hole and works with the fixing nut 20. When the fixing nut 20 is loosened, the rotating plate 6 is unlocked and can rotate around the fixing rod 19, thereby achieving a rotary adjustment of the position for measuring cracks. After adjustment, the fixing nut 20 is tightened to lock the position of the rotating plate 6.
[0032] Several support rods 21 are fixedly installed on the side of the rotating plate 6. The sliding plate 9 is slidably installed on the outer surface of the support rods 21. A limit plate 22 is fixedly installed at one end of the support rod 21. A spring 23 is sleeved on the outside of the support rod 21, with its two ends fixedly connected to the sliding plate 9 and the limit plate 22 respectively. The support rod 21 is used in conjunction with the sliding plate 9, the spring 23 and the limit plate 22. The support rod 21 can support and guide the sliding of the sliding plate 9, improving the smoothness of the movement. When the sliding plate 9 drives the arc locking rod to move away from the sliding lock groove, the spring 23 deforms. Therefore, the elastic force of the spring 23 can be used to drive the sliding locking rod 10 to quickly reset and insert into the sliding lock groove, realizing convenient locking. The limit plate 22 can prevent the sliding plate 9 from detaching from the support rod 21 when sliding.
[0033] A trapezoidal slide bar 24 is fixedly installed on the side of the scale 16. A trapezoidal groove is provided on the measuring housing 11 for the trapezoidal slide bar 24 to slide. By using the trapezoidal slide bar 24 in conjunction with the trapezoidal groove, the up and down movement of the rack plate 14 can be supported and limited, so that the rack plate 14 is more stable when it moves and is less prone to tilting and shaking.
[0034] Limiting plates 25 are fixedly installed at both ends of the scale 16. The limiting plates 25 can play a limiting role to prevent the rack plate 14 from sliding off the measuring housing 11.
[0035] In use, first, attach the mounting shell 1 to the wall surface and face the crack, so that the clamping plate 5 enters the crack. Rotate the double-threaded rod 2 to drive the two threaded plates 3 away from each other, and then drive the clamping plate 5 to move through the connecting block 4. The two clamping plates 5 move away from each other and press against the inner wall of the crack, completing the fixing of the mounting shell 1. At this time, you can check whether the wall is flat by checking whether the mounting shell 1 is tightly attached to the wall surface. Start the measuring motor 12 to drive the gear 13 to rotate, which in turn drives the two rack plates 14 to move relative to each other. At this time, the two rack plates 14 will move relative to each other and abut against the opposite sides of the inner wall of the crack. At this time, stop the measuring motor 12 and check the value on the scale 16 through the observation port 17. The scale 16 is perpendicular to the wall. The crack width is obtained by multiplying the distance between the fit position and the observation port 17 by two. Then, the measuring motor 12 is operated in reverse to reset the scale 16. The sliding plate 9 is operated to drive the sliding locking rod 10 to disengage from the sliding locking groove. At this time, the sliding column 7 is unlocked and can be horizontally slid to adjust the position between the measuring housing 11 and the rotating plate 6. Then, the sliding plate 9 is released, and the spring force of the spring 23 is used to drive the sliding locking rod 10 to insert into the sliding locking groove to achieve position locking. Then, the motor is started again, and the crack width at the new position is measured again. Then, the fixing nut 20 can be loosened. At this time, the rotating plate 6 is unlocked and can rotate around the fixing rod 19. After rotating to the appropriate position, the fixing nut 20 is tightened, and the motor is started again to measure the crack at the new position.
Claims
1. A hand-held portable wall crack gauge, characterised in that: The utility model provides a kind of installation shell (1), the inside rotation of the installation shell (1) is installed with two-way threaded rod (2), one end of the two-way threaded rod (2) is fixedly installed with hand wheel, the side of the installation shell (1) is fixedly installed with handle, the two threaded outer surfaces of the two-way threaded rod (2) are all threadedly installed with threaded plate (3), the side of the threaded plate (3) is fixedly installed with connecting block one (4), the connecting block one (4) extends out installation shell (1) through the strip slide of the side of installation shell (1) and is fixedly installed with toping plate (5), the side of the installation shell (1) movably is provided with rotating plate (6), a plurality of sliding columns (7) are slidably installed on the rotating plate (6), one end of the sliding column (7) is fixedly installed with connecting plate (8), the side of the rotating plate (6) is slidably installed with sliding plate (9), the side of the sliding plate (9) is fixedly installed with sliding lock rod (10), the sliding lock rod (10) is slidably installed on the rotating plate (6) and is opposite sliding column (7) arrangement, the other end of the sliding column (7) is fixedly installed with measuring shell (11), the inner wall of the measuring shell (11) is fixedly installed with measuring motor (12), the output shaft end of the measuring motor (12) is fixedly installed with gear (13), the outer surface of the gear (13) is engaged with two rack plates (14), two the rack plates (14) are oppositely staggered arrangement and rack plate (14) slidingly extends out measuring shell (11), the both ends of the rack plate (14) are all fixedly installed with connecting block two (15), the end of the connecting block two (15) is fixedly installed with scale (16), two the scale (16) is interlaced arrangement, the measuring shell (11) is provided with observation port (17) and observation port (17) is used with scale (16).
2. The hand-held, portable wall crack gauge according to claim 1, wherein: The side of the threaded plate (3) is fixedly installed with limit sliding block (18), the inner wall of the installation shell (1) is provided with limit sliding groove, and the limit sliding block (18) is slidably installed on the inner wall of the limit sliding groove.
3. The hand-held, portable wall crack gauge according to claim 1, wherein: The side of the installation shell (1) is fixedly installed with fixed rod (19), the rotating plate (6) is provided with through hole, the fixed rod (19) passes through the through hole, and the outer surface of the fixed rod (19) is threaded and is threadedly installed with fixed nut (20), and the fixed nut (20) is arranged on the side of the rotating plate (6).
4. The hand-held portable wall crack gauge according to claim 1, wherein: The side of the rotating plate (6) is fixedly installed with a plurality of support rods (21), the sliding plate (9) is slidably installed on the outer surface of the support rod (21), one end of the support rod (21) is fixedly installed with limit disc (22), and the support rod (21) is externally sleeved with spring (23) fixedly connected with the sliding plate (9) and the limit disc (22) at both ends.
5. The hand-held portable wall crack gauge according to claim 1, wherein: The side of the scale (16) is fixedly installed with trapezoidal slide bar (24), and the trapezoidal slide bar (24) is slidably arranged on the trapezoidal slide groove of the measuring shell (11).
6. The hand-held portable wall crack gauge according to claim 1, wherein: The both ends of the scale (16) are all fixedly installed with limit plate (25).