Pile hole diameter detection device for engineering management
Through the worm and worm gear structure and lifting mechanism, the problem of inaccurate detection of pile hole diameters caused by spring fatigue is solved, and higher detection accuracy and flexibility are achieved.
Patent Information
- Application Number
- CN202421870768.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-05
AI Technical Summary
In the existing pile hole diameter detection device, the spring is fatigued due to repeated expansion and contraction and deformation, and the elasticity is weakened, and the fit with the side wall of the pile hole is not maintained, resulting in inaccurate measurement results.
The worm and worm gear structure and lifting mechanism are adopted. The worm gear is driven to rotate, the double-headed screw rotates, the nut slides along the guide rail, and the measuring rod is fitted with the side wall of the pile hole. The lifting mechanism improves equipment flexibility and reduces measurement errors.
It improves the accuracy of pile hole diameter detection, reduces measurement errors, and enhances the flexibility of the equipment and measurement accuracy.
Smart Images
Figure CN223122129U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of project management, in particular to a pile hole aperture detection device for project management. Background Technique
[0002] In building construction, the quality of pile holes is crucial, covering two aspects: hole forming and pile body. Ensuring that the aperture accurately meets the design is the key to evaluating the quality of pile holes. During the construction process, it is necessary to carry out aperture detection to ensure the structural stability and compliance with safety standards.
[0003] After retrieval, a pile hole aperture detection device for project management with the Chinese patent number "CN216954325U", the sliding mechanism is composed of a chute, a slider and a spring. The spring is installed between the slider and the chute, and the position of the first baffle in the pile hole is adjusted automatically according to the placement position of the mounting seat, so as to keep it always in contact with the side wall of the pile hole. However, when the spring is in a working state for a long time, it will experience repeated telescopic deformation, resulting in material fatigue and weakened elasticity. After the elasticity is weakened, the spring cannot provide enough thrust for the slider, so that the degree of fit between the first baffle and the side wall of the pile hole decreases, and then the measurement result is inaccurate. Accordingly, this application proposes a pile hole aperture detection device for project management. Content of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a pile hole aperture detection device for project management.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A pile hole aperture detection device for project management, including a measurement box and a U-shaped frame. A double-headed screw is rotatably connected in the measurement box. Two nuts are threadedly connected to the double-headed screw. A measuring rod is fixedly connected to the lower end of the nut. A positioning rod is rotatably connected to the double-headed screw. A worm gear is fixedly connected to the double-headed screw. A rectangular plate is fixedly connected to the measurement box. A worm is rotatably connected to the upper end of the rectangular plate. The worm penetrates through the measurement box. The worm meshes with the worm gear. A first turntable is fixedly connected to the upper end of the worm. A lifting mechanism for lifting the measurement box is installed in the U-shaped frame. A fixing plate is fixedly connected to the lower end of the U-shaped frame. A connecting plate is fixedly connected to the lower end of the fixing plate. A pointer groove is opened on the side wall. A pointer is fixedly connected to the side wall close to it. The pointer slides in the pointer groove.
[0007] Preferably, two guide rails are fixedly connected in the measurement box. The guide rails penetrate through the nut, and the nut slides on the guide rails.
[0008] Preferably, the lifting mechanism includes a screw rod and a threaded sleeve. One end of the screw rod is rotatably installed on the U-shaped frame, and the other end of the screw rod is rotatably installed on the upper end of the fixing plate. The threaded sleeve is threadedly installed on the screw rod, and the side wall of the threaded sleeve is fixedly installed on the side wall of the measuring box. A guiding mechanism for guiding the threaded sleeve is installed in the U-shaped frame, and a rotating mechanism for rotating the screw rod is also installed on the U-shaped frame.
[0009] Preferably, the guiding mechanism includes two sliders. The sliders are fixedly installed on the side wall of the threaded sleeve. Sliding grooves are formed on the opposite inner side walls of the U-shaped frame, and the sliders slide in the adjacent sliding grooves.
[0010] Preferably, the rotating mechanism includes a short rod and a second turntable. The short rod is fixedly installed on the upper end of the screw rod. The short rod penetrates through the U-shaped frame, and the second turntable is fixedly installed on the upper end of the short rod.
[0011] Preferably, four brackets are fixedly connected to the lower end of the connecting plate, and moving wheels are installed at the lower ends of the brackets.
[0012] The utility model has the following beneficial effects:
[0013] 1. By rotating the worm to drive the worm wheel to rotate, the double-headed screw rod rotates, and then the nut drives the measuring rod to move away along the guide rail. When the measuring rod is in contact with the side wall of the pile hole, the position where the pointer points to the measuring scale is multiplied by two to obtain the diameter of the pile hole. The moving distances of the measuring rods are the same, and the situation that the measuring rod is not in contact with the side wall of the pile hole will not occur due to the long use time, improving the accuracy of the detection result and reducing errors.
[0014] 2. The lifting mechanism is provided to lift the positioning rod when it is not in use, facilitating the movement of the equipment and improving the flexibility of the measuring equipment. Description of the Drawings
[0015] Figure 1 is a schematic structural diagram of a pile hole diameter detection device for engineering management proposed by the utility model;
[0016] Figure 2 is a schematic sectional structural diagram of the measuring box in the utility model;
[0017] Figure 3 is a schematic structural diagram of parts such as the measuring box, measuring scale, pointer, measuring rod, positioning rod, and first turntable in the utility model;
[0018] Figure 4 is Figure 1 the enlarged structural diagram at A in
[0019] Figure 5 is Figure 2 the enlarged structural diagram at B in
[0020] In the figure: 1 measuring box, 2 measuring rod, 3 positioning rod, 4 moving wheel, 5 bracket, 6 measuring scale, 7 pointer, 8 first turntable, 9 second turntable, 10 screw rod, 11 fixing plate, 12 connecting plate, 13 U-shaped frame, 14 short rod, 15 double-headed screw rod, 16 guide rail, 17 nut, 18 threaded sleeve, 19 sliding groove, 20 slider, 21 worm, 22 worm gear, 23 pointer groove, 24 rectangular plate. Specific implementation mode
[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0022] Refer to Figures 1-5 , a pile hole diameter detection device for project management, including a measuring box 1 and a U-shaped frame 13. A double-headed screw rod 15 is rotatably connected inside the measuring box 1. Two nuts 17 are threadedly connected to the double-headed screw rod 15. The lower ends of the nuts 17 are fixedly connected with a measuring rod 2. A positioning rod 3 is rotatably connected to the double-headed screw rod 15. It should be noted that the function of the positioning rod 3 is to align with the center of the pile hole, so that the positioning rod 3 is a measurement base point. The measuring rod 2 moves to both sides of the positioning rod 3. When it moves to the side wall of the pile hole, the diameter of the hole can be directly read through the measuring scale.
[0023] A worm gear 22 is fixedly connected to the double-headed screw rod 15. A rectangular plate 24 is fixedly connected to the measuring box 1. A worm 21 is rotatably connected to the upper end of the rectangular plate 24. The worm 21 penetrates through the measuring box 1. The worm 21 meshes with the worm gear 22. It should be noted that the worm 21 and the worm gear 22 have self-locking properties. This means that after the worm stops rotating, the worm gear 22 and the double-headed screw rod 15 can maintain their current positions and prevent measurement errors caused by external forces or vibrations. Further, only the part of the worm 21 that meshes with the worm gear 22 has teeth, and the rest has no teeth. The lower end of the worm 21 rotates with the rectangular plate 24, and the other end penetrates through the measuring box 1 and is fixed to the first turntable 8.
[0024] A first turntable 8 is fixedly connected to the upper end of the worm 21. A lifting mechanism for lifting the measuring box 1 is installed inside the U-shaped frame 13. The lifting mechanism includes a screw rod 10 and a threaded sleeve 18. One end of the screw rod 10 is rotatably installed on the U-shaped frame 13, and the other end of the screw rod 10 is rotatably installed on the upper end of the fixing plate 11. The threaded sleeve 18 is threadedly installed on the screw rod 10, and the side wall of the threaded sleeve 18 is fixedly installed on the side wall of the measuring box 1.
[0025] A guiding mechanism for guiding the threaded sleeve 18 is installed inside the U-shaped frame 13. The guiding mechanism includes two sliders 20 which are fixedly installed on the side wall of the threaded sleeve 18. Sliding grooves 19 are formed on the opposite side walls inside the U-shaped frame 13, and the sliders 20 slide in the adjacent sliding grooves 19. It should be noted that the sliders 20 drive the threaded sleeve 18 to slide along the sliding grooves 19, preventing the threaded sleeve 18 from shifting due to the presence of the screw rod 10 and avoiding damage to the equipment parts.
[0026] A rotating mechanism for rotating the screw rod 10 is installed on the U-shaped frame 13. The rotating mechanism includes a short rod 14 and a second turntable 9. The short rod 14 is fixedly installed at the upper end of the screw rod 10. The short rod 14 penetrates through the U-shaped frame 13, and the second turntable 9 is fixedly installed at the upper end of the short rod 14.
[0027] The lower end of the U-shaped frame 13 is fixedly connected with a fixing plate 11. The lower end of the fixing plate 11 is fixedly connected with a connecting plate 12. A pointer groove 23 is formed on one side wall of the connecting plate 12. A pointer 7 is fixedly connected to the side wall of the connecting plate 12 close to the measuring rod 21. The pointer 7 slides in the pointer groove 23. It should be noted that, as Figure 3 shown, the pointed part at the upper end of the pointer 7 is flush with the side wall of the measuring rod 2. When the measuring rod 2 is in contact with the side wall of the pile hole, the position where the pointer 7 points to on the measuring scale 6 already includes the thickness of the measuring rod 2, further reducing the error of the measurement data and improving the accuracy of the measurement.
[0028] Two guide rails 16 are fixedly connected inside the measuring box 1. The guide rails 16 penetrate through the nut 17, and the nut 17 slides on the guide rails 16.
[0029] The lower end of the connecting plate 12 is fixedly connected with four brackets 5, and moving wheels 4 are installed at the lower ends of the brackets 5.
[0030] In the present utility model, the equipment can be moved to the side of the pile hole to be measured through the moving wheels 4. Rotating the second turntable 9 drives the screw rod 10, so that the threaded sleeve 18 drives the measuring box 1 to move downward, aligning the positioning rod 3 with the center of the pile hole, making the positioning rod 3 directly above the center of the pile hole. Rotating the first turntable 8 drives the worm 21 to rotate. Since the worm 21 meshes with the worm gear 22, the worm 21 drives the worm gear 22 to rotate. Further, the worm gear 22 drives the double-headed screw rod 15 to rotate. The nut 17 is limited by the guide rails 16. Therefore, as the double-headed screw rod 15 rotates, the nut 17 can only slide away along the guide rails 16. At this time, the nut 17 drives the measuring rod 2 to move away together. When the measuring rod 2 is in contact with the side wall of the pile hole, the position where the pointer 7 points to on the measuring scale 6 is the radius of the pile hole, and multiplying it by two on this basis is the diameter size of the pile hole.
[0031] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.
Claims
1. A pile hole aperture detection device for engineering management, comprising a measuring box (1) and a U-shaped frame (13), characterized in that, A double-headed screw rod (15) is rotatably connected inside the measuring box (1). Two nuts (17) are threadedly connected to the double-headed screw rod (15). A measuring rod (2) is fixedly connected to the lower end of the nut (17). A positioning rod (3) is rotatably connected to the double-headed screw rod (15). A worm gear (22) is fixedly connected to the double-headed screw rod (15). A rectangular plate (24) is fixedly connected to the measuring box (1). A worm (21) is rotatably connected to the upper end of the rectangular plate (24). The worm (21) passes through the measuring box (1). The worm (21) meshes with the worm gear (22). A first turntable (8) is fixedly connected to the upper end of the worm (21). A lifting mechanism for lifting the measuring box (1) is installed inside the U-shaped frame (13). A fixing plate (11) is fixedly connected to the lower end of the U-shaped frame (13). A connecting plate (12) is fixedly connected to the lower end of the fixing plate (11). A pointer groove (23) is formed in the side wall of the measuring box (1). A pointer (7) is fixedly connected to the side wall of the nut (17) close to the worm (21). The pointer (7) slides in the pointer groove (23).
2. The pore diameter detection device for engineering management according to claim 1, characterized in that, Two guide rails (16) are fixedly connected inside the measuring box (1). The guide rails (16) pass through the nut (17). The nut (17) slides on the guide rails (16).
3. The pore diameter detection device for engineering management according to claim 1, wherein, The lifting mechanism includes a screw rod (10) and a threaded sleeve (18). One end of the screw rod (10) is rotatably installed on the U-shaped frame (13). The other end of the screw rod (10) is rotatably installed on the upper end of the fixing plate (11). The threaded sleeve (18) is threadedly installed on the screw rod (10). The side wall of the threaded sleeve (18) is fixedly installed on the side wall of the measuring box (1). A guiding mechanism for guiding the threaded sleeve (18) is installed inside the U-shaped frame (13). A rotating mechanism for rotating the screw rod (10) is installed on the U-shaped frame (13).
4. The pore diameter detection device for engineering management according to claim 3, characterized in that, The guiding mechanism includes two sliders (20). The sliders (20) are fixedly installed on the side wall of the threaded sleeve (18). Sliding grooves (19) are formed in the opposite inner side walls of the U-shaped frame (13). The sliders (20) slide in the adjacent sliding grooves (19).
5. The pore diameter detection device for engineering management according to claim 3, characterized in that, The rotating mechanism includes a short rod (14) and a second turntable (9). The short rod (14) is fixedly installed on the upper end of the screw rod (10). The short rod (14) passes through the U-shaped frame (13). The second turntable (9) is fixedly installed on the upper end of the short rod (14).
6. The pore diameter detection device for engineering management according to claim 1, characterized in that, Four brackets (5) are fixedly connected to the lower end of the connecting plate (12). A moving wheel (4) is installed at the lower end of the bracket (5).