Multifunctional measuring tool for building detection
By using the meshing structure of the sliding rod and the positioning gear, the problem of the return spring twisting and deforming when adjusting the angle of the existing multi-functional measuring tool for building inspection is solved, thus extending the service life of the equipment and improving its stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING XINSHENG CONSTR ENG QUALITY INSPECTION CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-05
AI Technical Summary
When the adjustment angle of the existing multi-functional measuring tool for building inspection is too large, the return spring is prone to twisting and deformation, which can lead to damage to parts and reduce the service life of the equipment.
By designing the meshing structure of the sliding rod and the positioning gear, the pressing component is allowed to push the sliding rod and the positioning gear to disengage from the inner gear ring. After adjusting to a suitable angle, releasing the hand allows the return spring to push the square block and the connecting rod to move, so that the positioning gear meshes with the inner gear ring, thus preventing the return spring from twisting and deforming.
It effectively avoids the torsion and deformation of the return spring during angle adjustment, improves the service life of the equipment, and enhances the stability and angle adjustment accuracy of the equipment through the anti-disengagement component and the receiving groove structure.
Smart Images

Figure CN224202319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of measuring tool technology, specifically to a multifunctional measuring tool for building inspection. Background Technology
[0002] Construction project quality testing refers to the activities of testing and determining the quality characteristics of materials, components, equipment, and the physical quality and functionality of construction projects in accordance with relevant national laws and regulations, mandatory engineering construction standards, and design documents. Construction project quality testing includes foundation engineering testing, on-site testing of main structure engineering, building curtain wall engineering testing, and steel structure engineering testing, etc.
[0003] A search revealed a Chinese patent publication dated September 24, 2024, with publication number CN221764337U, describing a multifunctional measuring tool for building inspection. The tool comprises a locking assembly with a bottom connector sleeved on its surface. One end of the bottom connector is fixedly connected to a retractable bottom measuring assembly. A top connector is sleeved on the movable end of the locking assembly, and one end of the top connector is fixedly connected to a retractable top measuring assembly. The locking assembly includes a fixed cylinder with a return spring fixedly connected to its inner cavity. A lifting plate is slidably connected to the top of the fixed cylinder's inner cavity, and a telescopic rod is fixedly connected to the top of the lifting plate. A locking gear matching an internal gear ring is sleeved on the bottom surface of the telescopic rod. This multifunctional measuring tool for building inspection allows for angle adjustment between the bottom and top measuring assemblies by moving the top connector downwards, causing the limiting plate and telescopic rod to move downwards. The downward movement of the telescopic rod disengages the locking gear from the internal gear ring. Rotating the telescopic rod then rotates the top measuring assembly, thereby adjusting the angle between the bottom and top measuring assemblies.
[0004] While the aforementioned existing technical solution facilitates the adjustment and locking of the equipment, if the adjustment angle is too large, the reset spring is prone to twisting and deformation, which in turn causes damage to parts and reduces the service life of the equipment. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a multifunctional measuring tool for building inspection, which solves the problem mentioned in the background technology that when the adjustment angle is too large, the return spring is easily twisted and deformed, which in turn causes damage to parts and reduces the service life of the equipment.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional measuring tool for building inspection, comprising an upper connector and a lower connector. The lower connector has a square mounting groove inside, and a first opening is formed on the upper inner wall of the square mounting groove. The upper connector has a circular mounting groove inside, and a second opening is formed on the lower inner wall of the circular mounting groove. A rotating connector is fixedly connected to the bottom end of the upper connector, and the rotating connector is rotatably connected to the first opening. A sliding hole is formed on the upper inner wall of the circular mounting groove, and the interior of the sliding hole is slidably connected... The device includes a sliding rod with a positioning gear fixedly connected to its bottom end. The bottom end of the positioning gear is fixedly connected to a connecting rod that passes through the second and first openings. The bottom end of the connecting rod is fixedly connected to a square block that slidably connects to a square mounting groove. A return spring is provided between the square block and the lower inner wall of the square mounting groove. An internal gear ring that meshes with the positioning gear is provided on the inner wall of the circular mounting groove. A pressing plate is fixedly connected to the top end of the sliding rod. Measuring elements are fixedly connected to the outer walls of both the upper and lower connecting parts. A telescopic ruler is slidably connected inside the measuring element.
[0009] By adopting the above technical solution, pressing the pressing part pushes the sliding rod and the positioning gear to move, causing the positioning gear to disengage from the internal gear ring. At this time, the upper connecting part can be rotated. When the equipment is adjusted to a suitable angle, releasing the hand will cause the return spring to push the square block and the connecting rod to move, causing the connecting rod to push the positioning gear to mesh with the internal gear ring, thereby positioning the upper connecting part. This facilitates the adjustment of the angle between the two measuring parts, thus avoiding deformation and damage to the return spring when adjusting the angle of the equipment. This also prevents the return spring from twisting and deforming when the adjustment angle is too large, thereby improving the service life of the equipment.
[0010] Optionally, one end of each of the two telescopic rulers is fixedly connected with an anti-detachment component.
[0011] By adopting the above technical solution, the anti-detachment component is used to stop the telescopic ruler and prevent it from detaching from the measuring component, thereby improving the stability of the equipment.
[0012] Optionally, the top end of the upper connector is provided with a receiving groove that mates with the pressing plate.
[0013] By adopting the above technical solution, the receiving groove is used to store the pressing plate, preventing the pressing plate from being exposed to the outside of the equipment, thereby reducing the probability of the pressing plate being accidentally touched, and thus improving the stability of the equipment.
[0014] Optionally, a scale groove is provided on the inner side wall of the receiving groove, and an angle scale is provided on the lower inner side wall of the scale groove. A pointer that matches the angle scale is fixedly connected to the pressing plate.
[0015] By adopting the above technical solution, when adjusting the angle of the device, the upper connector drives the measuring component and the telescopic ruler to rotate. At this time, the upper connector drives the angle scale to rotate, so that the angle scale and the pointer cooperate to indicate the current angle of the device, thereby improving the accuracy of angle adjustment.
[0016] Optionally, a bearing is provided on the inner wall of the first port, and the inner wall of the bearing is connected to the rotating connector.
[0017] By adopting the above technical solution, the bearing is used to reduce the friction between the rotating connecting part and the lower connecting part, thereby facilitating the adjustment of the equipment.
[0018] (III) Beneficial Effects
[0019] In summary, this utility model has at least one of the following beneficial technical effects:
[0020] This multi-functional measuring tool for building inspection uses a pressing mechanism to move a sliding rod and a positioning gear. Pressing the pressing mechanism moves the sliding rod and positioning gear, causing the positioning gear to disengage from the internal gear ring. At this point, the upper connecting part can be rotated. Once the device is adjusted to the appropriate angle, releasing the pressing mechanism allows the return spring to push the square block and connecting rod, causing the connecting rod to engage the positioning gear with the internal gear ring. This positions the upper connecting part, facilitating the adjustment of the angle between the two measuring parts. This prevents deformation and damage to the return spring during angle adjustments and avoids twisting or deformation of the return spring when the angle is adjusted too large, thus extending the lifespan of the device. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the first side view of the present invention;
[0022] Figure 2 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;
[0023] Figure 3 This is a first cross-sectional view of the present invention.
[0024] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle.
[0025] In the diagram: 1. Upper connector; 2. Lower connector; 3. Square mounting slot; 4. Circular mounting slot; 5. Rotating connector; 6. Sliding rod; 7. Positioning gear; 8. Connecting rod; 9. Square block; 10. Return spring; 11. Internal gear ring; 12. Pressing plate; 13. Measuring component; 14. Telescopic ruler; 15. Anti-detachment component; 16. Receiving groove; 17. Scale groove; 18. Angle scale; 19. Pointer; 20. Bearing. Detailed Implementation
[0026] 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.
[0027] The present invention will be further described in detail below with reference to the accompanying drawings.
[0028] Reference Figures 1-4 A multifunctional measuring tool for building inspection includes an upper connector 1 and a lower connector 2. The lower connector 2 has a square mounting groove 3 inside, and a first opening on the upper inner wall of the square mounting groove 3. The upper connector 1 has a circular mounting groove 4 inside, and a second opening on the lower inner wall of the circular mounting groove 4. A rotating connector 5 is fixedly connected to the bottom end of the upper connector 1, and the rotating connector 5 is rotatably connected to the first opening. A sliding hole is formed on the upper inner wall of the circular mounting groove 4, and a sliding rod 6 is slidably connected inside the sliding hole. A positioning gear 7 is fixedly connected to the bottom end of the sliding rod 6, and a connecting rod 8 penetrating the second opening and the first opening is fixedly connected to the bottom end of the positioning gear 7. A square block 9 slidably connects to the bottom end of the connecting rod 8 and is slidably connected to the square mounting groove 3. A return spring 10 is provided between the square block 9 and the lower inner wall of the square mounting groove 3. A positioning spring 10 is provided on the inner wall of the circular mounting groove 4. The internal gear ring 11 meshes with the gear 7. A pressing plate 12 is fixedly connected to the top of the sliding rod 6. Measuring elements 13 are fixedly connected to the outer walls of the upper connecting part 1 and the lower connecting part 2. A telescopic ruler 14 is slidably connected inside the measuring element 13. Pressing the pressing element pushes the sliding rod 6 and the positioning gear 7 to move, causing the positioning gear 7 to disengage from the internal gear ring 11. At this time, the upper connecting part 1 can be rotated. When the equipment is adjusted to a suitable angle, releasing the hand will cause the return spring 10 to push the square block 9 and the connecting rod 8 to move, so that the connecting rod 8 pushes the positioning gear 7 to mesh with the internal gear ring 11, thereby positioning the upper connecting part 1. This facilitates the adjustment of the angle between the two measuring elements 13, thus avoiding deformation and damage to the return spring 10 when adjusting the angle of the equipment. This also prevents the return spring 10 from twisting and deforming when the adjustment angle is too large, thereby improving the service life of the equipment.
[0029] Reference Figure 3 Each of the two telescopic rulers 14 has an anti-detachment component 15 fixedly connected to one end. The anti-detachment component 15 is used to block the telescopic ruler 14 and prevent it from detaching from the measuring component 13, thereby improving the stability of the equipment.
[0030] Reference Figure 3and Figure 4 The top of the upper connector 1 is provided with a receiving groove 16 that cooperates with the pressing plate 12. The receiving groove 16 is used to store the pressing plate 12 and prevent the pressing plate 12 from being exposed to the outside of the equipment, thereby reducing the probability of the pressing plate 12 being accidentally touched, and thus improving the stability of the equipment.
[0031] Reference Figure 1 and Figure 2 The inner wall of the receiving groove 16 is provided with a scale groove 17, and the lower inner wall of the scale groove 17 is provided with an angle scale 18. A pointer 19 that cooperates with the angle scale 18 is fixedly connected to the pressing plate 12. When adjusting the angle of the device, the upper connecting piece 1 drives the measuring piece 13 and the telescopic ruler 14 to rotate. At this time, the upper connecting piece 1 drives the angle scale 18 to rotate, so that the angle scale 18 cooperates with the pointer 19 to indicate the current angle of the device, thereby improving the accuracy of angle adjustment.
[0032] Reference Figure 3 and Figure 4 A bearing 20 is provided on the inner wall of the first port. The inner wall of the bearing 20 is connected to the rotating connector 5. The bearing 20 is used to reduce the friction between the rotating connector 5 and the lower connector 2, thereby facilitating the adjustment of the equipment.
[0033] In summary, the working principle and process of this multi-functional measuring tool for building inspection are as follows: During use, firstly, pressing the pressing element pushes the sliding rod 6 and the positioning gear 7 to move, causing the positioning gear 7 to disengage from the internal gear ring 11. At this point, the upper connecting part 1 can be rotated. Once the device is adjusted to a suitable angle, releasing the pressure allows the return spring 10 to push the square block 9 and the connecting rod 8 to move, causing the connecting rod 8 to push the positioning gear 7 to mesh with the internal gear ring 11. This positions the upper connecting part 1, facilitating the adjustment of the angle between the two measuring parts 13. This prevents deformation and damage to the return spring 10 during angle adjustment, and also prevents the return spring 10 from twisting or deforming when the angle is adjusted too large, thus extending the service life of the device. The anti-detachment component 15 is used to stop the telescopic ruler 14 and prevent it from detaching from the measuring component 13, thereby improving the stability of the equipment. The receiving groove 16 is used to store the pressing plate 12 and prevent it from being exposed outside the equipment, thereby reducing the probability of the pressing plate 12 being accidentally touched, thus improving the stability of the equipment. When adjusting the angle of the equipment, the upper connecting component 1 drives the measuring component 13 and the telescopic ruler 14 to rotate. At this time, the upper connecting component 1 drives the angle scale 18 to rotate, so that the angle scale 18 and the pointer 19 cooperate to indicate the current angle of the equipment, thereby improving the accuracy of angle adjustment. The bearing 20 is used to reduce the friction between the rotating connecting component 5 and the lower connecting component 2, thereby facilitating the adjustment of the equipment.
[0034] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A multifunctional measuring tool for building inspection, comprising an upper connector (1), characterized in that: The system includes a lower connector (2), which has a square mounting groove (3) inside. The upper inner wall of the square mounting groove (3) has a first opening. The upper connector (1) has a circular mounting groove (4) inside. The lower inner wall of the circular mounting groove (4) has a second opening. A rotating connector (5) is fixedly connected to the bottom end of the upper connector (1). The rotating connector (5) is rotatably connected to the first opening. A sliding hole is provided on the upper inner wall of the circular mounting groove (4). A sliding rod (6) is slidably connected inside the sliding hole. A positioning gear (7) is fixedly connected to the bottom end of the sliding rod (6). A connecting rod (8) is fixedly connected to the bottom end, passing through the second opening and the first opening. A square block (9) is fixedly connected to the bottom end of the connecting rod (8) and slidably connected to the square mounting groove (3). A return spring (10) is provided between the square block (9) and the inner lower side wall of the square mounting groove (3). An internal toothed ring (11) that meshes with the positioning gear (7) is provided on the inner side wall of the circular mounting groove (4). A pressing plate (12) is fixedly connected to the top end of the sliding rod (6). A measuring element (13) is fixedly connected to the outer wall of both the upper connecting part (1) and the lower connecting part (2). A telescopic ruler (14) is slidably connected inside the measuring element (13).
2. The multifunctional measuring tool for building inspection according to claim 1, characterized in that: One end of each of the two telescopic rulers (14) is fixedly connected with an anti-detachment component (15).
3. The multifunctional measuring tool for building inspection according to claim 1, characterized in that: The top end of the upper connector (1) is provided with a receiving groove (16) that cooperates with the pressing plate (12).
4. The multifunctional measuring tool for building inspection according to claim 3, characterized in that: The inner sidewall of the receiving groove (16) is provided with a scale groove (17), and the lower inner sidewall of the scale groove (17) is provided with an angle scale (18). The pressing plate (12) is fixedly connected with a pointer (19) that cooperates with the angle scale (18).
5. A multifunctional measuring tool for building inspection according to claim 1, characterized in that: A bearing (20) is provided on the inner wall of the first opening, and the inner wall of the bearing (20) is connected to the rotating connector (5).
Citation Information
Patent Citations
Multifunctional measuring tool for building detection
CN221764337U