Anti-deviation bending radius detection device for large-diameter bent pipe
By designing a detection device that includes a base, a vertical plate, a detection mechanism, and an adjustment mechanism, the problems of low efficiency and large error in the detection of bending radius of large-diameter pipes are solved, and accurate measurement and low-cost adaptive detection are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN GUANDGA PIPE CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-08
AI Technical Summary
Existing methods for detecting the bending radius of large-diameter pipes are inefficient and have large errors. Automated equipment is complex in structure, expensive, and has poor adaptability, and cannot meet the detection needs of different specifications and curvatures.
A detection device comprising a base, a vertical plate, a detection mechanism, and an adjustment mechanism was designed. By using a scale and a drive motor in conjunction, the zero mark of the scale is aligned with the detection reference surface. Combined with the moving block structure of the lead screw and guide column, the accuracy of scale reading is ensured and the device is adaptable to the detection of bends of different sizes.
It enables convenient reading and accurate measurement of test data, can adapt to the testing needs of bends of different sizes, and reduces human error and equipment costs.
Smart Images

Figure CN224216022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a detection device, specifically a large-diameter pipe anti-deviation bending radius detection device. Background Technology
[0002] Currently, the methods for detecting the bending radius of large-diameter bends mainly include traditional manual measurement and partially automated testing equipment. Manual measurement typically uses tools such as measuring tapes and calipers. This method is not only inefficient but also highly susceptible to human error, making it difficult to control measurement errors. This is especially true for large-diameter bends requiring high precision, where the accuracy and consistency of the test results are difficult to guarantee. Existing automated testing equipment suffers from problems such as complex structure, high cost, and poor adaptability, failing to meet the testing needs of large-diameter bends with different specifications and curvatures. Utility Model Content
[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a large-diameter pipe anti-deviation bending radius detection device, which effectively solves the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:
[0005] Base;
[0006] A vertical plate is installed at one end of the base;
[0007] The testing mechanism includes a horizontal plate that can be moved laterally on a base, a vertical frame at the end of the horizontal plate, and a scale fixed on the horizontal plate.
[0008] The adjustment mechanism includes a housing fixed on the base, a lead screw and a guide column arranged in parallel, a moving block cooperating with the lead screw, and a drive motor that drives the lead screw to rotate. The moving block is fixedly connected to the cross plate.
[0009] The vertical plate is provided with a measuring slot through which a ruler passes, and the zero mark of the ruler is aligned with the detection reference surface of the horizontal plate.
[0010] Preferably, the adjusting mechanism includes at least a pair of guide posts symmetrically distributed on both sides of the lead screw, and the moving block is provided with guide holes that cooperate with the guide posts and threaded holes that cooperate with the lead screw.
[0011] Preferably, the effective range of the scale is greater than the maximum travel of the horizontal plate.
[0012] Preferably, the drive motor is directly connected to the end of the lead screw via a coupling.
[0013] Preferably, the detection reference surface of the horizontal plate is provided with a pipe positioning groove.
[0014] Preferably, a detection area is provided on one side of the vertical plate.
[0015] Beneficial effects: Convenient reading of test data: The zero mark of the ruler is aligned with the test reference surface of the horizontal plate, making it easy to read the test data;
[0016] Meets different size inspection needs: The effective range of the scale is greater than the maximum travel of the horizontal plate, which can meet the inspection needs of bends of different sizes. It can achieve accurate measurement regardless of the bending radius of the bend. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0019] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a second perspective;
[0020] Figure 3 This is a three-dimensional structural diagram of the present invention from a third-person perspective;
[0021] The following are the labels in the diagram: 1. Base; 2. Vertical plate; 3. Detection area; 4. Adjustment mechanism; 5. Housing; 6. Lead screw; 7. Guide column; 8. Drive motor; 9. Moving block; 10. Guide hole; 11. Threaded hole; 12. Horizontal plate; 13. Vertical frame; 14. Scale; 15. Through slot. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1-3 The specific embodiments of this utility model will be described in further detail.
[0023] Example 1, by Figure 1-3 This utility model provides a device for detecting the bending radius of a large-diameter bend to prevent deviation, comprising:
[0024] Base 1;
[0025] Vertical plate 2 is vertically mounted at one end of the base;
[0026] The testing mechanism includes a horizontal plate 12 that can be moved laterally on a base, a vertical frame 13 located at the end of the horizontal plate, and a scale 14 fixed on the horizontal plate.
[0027] The adjustment mechanism 4 includes a housing 5 fixed on the base 1, a lead screw 6 and a guide column 7 arranged in parallel, a moving block 9 cooperating with the lead screw, and a drive motor 8 that drives the lead screw to rotate. The moving block 9 is fixedly connected to the horizontal plate 12.
[0028] The vertical plate 2 is provided with a measuring slot 15 through which the scale 14 passes, and the zero mark of the scale 14 is aligned with the detection reference surface of the horizontal plate 12.
[0029] Base 1: Base 1 is the basic support component of the entire testing device, providing a stable support platform for the device and ensuring the stability of the device during the testing process.
[0030] Vertical plate 2: Vertical plate 2 is vertically set at one end of base 1. As an important component of the device, it is provided with a measuring groove 15 for the scale 14 to pass through, which plays a key positioning and guiding role in the detection process.
[0031] The testing mechanism includes a horizontal plate 12 that can be moved laterally on a base 1, a vertical frame 13 located at the end of the horizontal plate 12, and a scale 14 fixed on the horizontal plate 12. The horizontal plate 12 can move laterally on the base 1, causing the vertical frame 13 and the scale 14 to move together. The testing reference surface of the horizontal plate 12 is provided with a pipe positioning groove for contacting the large-diameter bent pipe to be tested, ensuring the accurate positioning of the bent pipe during the testing process. The zero mark of the scale 14 is aligned with the testing reference surface of the horizontal plate 12, facilitating the reading of testing data. Its effective range is greater than the maximum travel of the horizontal plate 12, which can meet the testing requirements of bent pipes of different sizes. The bending radius is obtained by dividing the mark read from the inner edge of the vertical plate 2 by 2.
[0032] Adjustment Mechanism 4: The adjustment mechanism 4 includes a housing 5 fixed to the base 1, a lead screw 6 and guide posts 7 arranged in parallel, a moving block 9 cooperating with the lead screw 6, and a drive motor 8 for driving the lead screw 6 to rotate. The adjustment mechanism includes at least one pair of guide posts 7 symmetrically distributed on both sides of the lead screw 6. The moving block 9 has guide holes 10 cooperating with the guide posts 7 and threaded holes 11 cooperating with the lead screw 6. The drive motor 8 is directly connected to the end of the lead screw 6 via a coupling. When the drive motor 8 operates, it drives the lead screw 6 to rotate. The moving block 9 moves laterally under the action of the lead screw 6 and guide posts 7, thereby realizing the lateral movement of the cross plate 12 and adjusting the position of the detection mechanism.
[0033] Other components: A detection area 3 is provided on one side of the vertical plate 2 for placing large-diameter bent pipes to be tested; the housing 5 serves to protect the internal components of the adjustment mechanism and prevent dust, debris and other contaminants from entering and affecting the normal operation of the device.
[0034] Working principle: When using this invention, the device is in an initial standby state before detecting the bending radius of a large-diameter bent pipe. The large-diameter bent pipe to be tested is placed in the detection area 3 on one side of the vertical plate 2, with its outer side in contact with the inner wall of the vertical plate 2.
[0035] After the drive motor 8 is started, the workflow officially begins. The drive motor 8 is directly connected to the end of the lead screw 6 via a coupling, and the motor drives the lead screw 6 to rotate when it runs. The moving block 9 is provided with a threaded hole 11 that mates with the lead screw 6 and a guide hole 10 that mates with the guide post 7. During the rotation of the lead screw 6, the moving block 9 generates lateral displacement on the lead screw 6 due to the threaded transmission. At the same time, the guide posts 7, which are symmetrically distributed on both sides of the lead screw 6, play a guiding role. Through their cooperation with the guide hole 10, they restrict the moving block 9 to move only smoothly in the lateral direction, preventing it from shaking or deviating during the movement. The moving block 9 is fixedly connected to the horizontal plate 12, so the movement of the moving block 9 will drive the horizontal plate 12 to move laterally along the base 1, thereby causing the vertical frame 13 located at the end of the horizontal plate 12 and the scale 14 fixed on the horizontal plate 12 to move together.
[0036] As the horizontal plate 12 moves, it gradually approaches the curved part of the pipe. When the vertical frame 13 is completely in contact with the curved part of the pipe, the drive motor 8 stops. At this time, since the zero mark of the scale 14 is aligned with the detection reference surface of the vertical frame 13, the bending radius is obtained by reading the scale value on the scale 14. The scale reading from the inner edge of the vertical plate 2 divided by 2 is the bending radius. The measuring slot 15 provided on the vertical plate 2 allows the scale 14 to pass through, which plays a positioning and guiding role for the scale 14 during the detection process, ensuring the accuracy of the scale reading. Moreover, the effective range of the scale 14 is greater than the maximum travel of the horizontal plate 12, which can meet the detection needs of large-diameter pipes of different sizes. Regardless of the bending radius of the pipe, accurate measurement can be achieved through this device.
[0037] Beneficial effects: Convenient reading of test data: The zero mark of the ruler is aligned with the test reference surface of the horizontal plate, making it easy to read the test data.
[0038] Meets different size inspection needs: The effective range of the scale is greater than the maximum travel of the horizontal plate, which can meet the inspection needs of bends of different sizes. It can achieve accurate measurement regardless of the bending radius of the bend.
[0039] Protecting internal components: The housing serves to protect the internal components of the adjustment mechanism, preventing dust, debris, and other contaminants from entering and affecting the normal operation of the device.
[0040] The testing process is precise: the horizontal plate has a pipe positioning slot on the testing reference surface, which is used to contact the large-diameter bend to be tested, ensuring that the bend is accurately positioned during the testing process; the vertical plate has a measuring slot through which a ruler can pass, which plays a positioning and guiding role for the ruler during the testing process, ensuring the accuracy of the scale reading.
[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A device for detecting the bending radius of a large-diameter bent pipe to prevent deviation, characterized in that: include: Base (1); Vertical plate (2) is set vertically at one end of the base; The testing mechanism includes a horizontal plate (12) that can be moved laterally on the base, a vertical frame (13) at the end of the horizontal plate, and a scale (14) fixed on the horizontal plate. The adjustment mechanism (4) includes a housing (5) fixed on the base (1), a lead screw (6) and a guide column (7) arranged in parallel, a moving block (9) cooperating with the lead screw, and a drive motor (8) for driving the lead screw to rotate. The moving block (9) is fixedly connected to the cross plate (12). The vertical plate (2) is provided with a measuring slot (15) through which the scale (14) passes, and the zero mark of the scale (14) is aligned with the detection reference surface of the horizontal plate (12).
2. The large-diameter pipe bending radius detection device according to claim 1, characterized in that: The adjustment mechanism (4) includes at least a pair of guide posts (7) symmetrically distributed on both sides of the lead screw (6), and the moving block (9) is provided with a guide hole (10) that cooperates with the guide post and a threaded hole (11) that cooperates with the lead screw.
3. The large-diameter pipe bending radius detection device according to claim 2, characterized in that: The effective range of the scale (14) is greater than the maximum travel of the horizontal plate (12).
4. The large-diameter pipe bending radius detection device for preventing deviation according to claim 3, characterized in that: The drive motor (8) is directly connected to the end of the lead screw (6) via a coupling.
5. The large-diameter pipe bending radius detection device according to claim 4, characterized in that: The detection reference surface of the horizontal plate (12) is provided with a pipe positioning slot.
6. The large-diameter pipe bending radius detection device according to claim 5, characterized in that: A detection area (3) is provided on one side of the vertical plate (2).