An underground pipeline measuring device
By introducing support adjustment and limiting mechanisms into the underground pipeline measurement device, the stability problem of the device during measurement was solved, achieving higher measurement accuracy and stability of the support legs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 重庆市智绘检测技术有限公司
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-29
Smart Images

Figure CN224302955U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of underground pipeline measurement equipment, specifically, it relates to an underground pipeline measurement device. Background Technology
[0002] Surveying existing underground pipelines is a crucial component of planning, design, and construction, providing fundamental data for these processes. The inner diameter of the pipe is one of the most important parameters for underground pipelines, and the accuracy of this data directly impacts subsequent design and construction.
[0003] CN219015187U discloses an underground pipeline measuring device. During measurement, the lower scale is first pressed against the lower inner wall of the drainage pipe, and the scale value at this time is recorded through the observation port. The drive motor is started, which drives the screw to rotate. The rotation of the screw drives the sleeve to move upward, thereby driving the upper scale to move upward to the upper inner wall of the pipe. At this time, the scale value is recorded again. The difference between the two scale values is the inner diameter of the drainage pipe.
[0004] When measuring pipelines, the device lacks a stable support structure, requiring operators to manually lift and support it. When measuring the inner diameter and burial depth of the pipelines, operators inevitably handle the device unsteadily, leading to deviations in the measurement data. Utility Model Content
[0005] To address the aforementioned technical problem of measurement data deviation caused by unstable handling of the device by the operator, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] An underground pipeline measuring device includes a measuring rod and a scale set at the bottom of the measuring rod. The measuring rod is provided with a support adjustment mechanism and a limiting mechanism.
[0007] The support adjustment mechanism includes a fixed block disposed on the outer wall of the measuring rod, and a support leg disposed on the fixed block. The support leg is used to stably support the measuring rod, thereby ensuring the accuracy of the measurement.
[0008] In a preferred embodiment of this utility model, the support adjustment mechanism includes a groove formed on the outer wall of the fixed block, a sliding rod provided on the inner wall of the groove, a slider slidably provided on the outer wall of the sliding rod, a connecting rod movably provided on one side of the slider, the bottom end of the connecting rod being aligned with the top end of the support leg, a movable groove formed on the outer wall of the fixed block, a connecting plate slidably provided on the inner wall of the movable groove, and one end of the connecting plate being disposed on the outer wall of the connecting rod.
[0009] In a preferred embodiment of the present invention, the limiting mechanism includes a first magnetic block disposed on the support leg and a second magnetic block disposed on the outer wall of the measuring rod.
[0010] In a preferred embodiment of this utility model, a connecting block is provided on the outer wall of the connecting plate away from the slider. A sliding hole is provided on one side of the outer wall of the connecting block. A spring is provided on the inner wall of the sliding hole. A positioning rod is provided on the end of the spring away from the inner wall of the sliding hole. An extension rod is provided on the outer wall of the end of the positioning rod connected to the spring. A pull rod is provided on the end of the extension rod away from the positioning rod. A positioning hole is provided on the outer wall of the fixing block. A limit plate is provided on the top surface of the slider.
[0011] In a preferred embodiment of this utility model, the number of positioning holes is several, and the positioning holes are evenly and equidistantly distributed on the outer wall of the fixing block.
[0012] In a preferred embodiment of this utility model, the outer wall of the positioning rod is snapped onto the inner wall of the positioning hole, and the outer wall of the positioning rod is fitted to the inner wall of the positioning hole.
[0013] In a preferred embodiment of this utility model, the outer wall of the slider is slidably disposed on the inner wall of the groove opened on the fixed block, and the outer wall of the slider is fitted to the inner wall of the groove.
[0014] Compared with the prior art, the present invention has the following advantages:
[0015] This invention utilizes a pull rod to move a positioning rod outward, simultaneously compressing a spring during the rod's movement. This releases the locking mechanism on the slider. Pulling the connecting block moves the slider up and down on the outer wall of the sliding rod, adjusting the position of the support leg. Once adjusted, the spring's return engages the positioning rod in the positioning hole, thus positioning the support leg. This allows for adjustment of the support leg's position based on the pipeline's measurement depth, adapting to the measuring rod for support and improving measurement accuracy.
[0016] This invention uses a first magnetic block and a second magnetic block to magnetically hold the support leg to the outer wall of the measuring rod, thereby allowing the support leg to be stored and held in place. This reduces the space occupied by the measuring rod when it is not in use and prevents the support leg from shaking or shifting during storage, thus improving the stability of the support leg when stored.
[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0018] In the attached diagram:
[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a top-view structural diagram of the present invention;
[0021] Figure 3 This is a partial cross-sectional view of the support and adjustment mechanism of this utility model. Figure 1 ;
[0022] Figure 4 This is a schematic diagram of the support and adjustment mechanism of this utility model. Figure 2 ;
[0023] Figure 5 This is a schematic diagram of the limiting mechanism of this utility model.
[0024] In the diagram: 1. Measuring rod; 2. Scale; 31. Support adjustment mechanism; 311. Fixing block; 312. Sliding rod; 313. Sliding block; 314. Connecting rod; 315. Support leg; 316. Movable groove; 317. Connecting plate; 318. Connecting block; 319. Spring; 3110. Positioning rod; 3111. Extension rod; 3112. Positioning hole; 3113. Pull rod; 3114. Limiting plate; 32. Limiting mechanism; 321. First magnetic block; 322. Second magnetic block. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0026] like Figures 1 to 5 As shown, an underground pipeline measuring device includes a measuring rod 1 and a scale 2 set at the bottom of the measuring rod 1. The measuring rod 1 is provided with a support adjustment mechanism 31 and a limiting mechanism 32. The support adjustment mechanism 31 includes a fixing block 311 set on the outer wall of the measuring rod 1. The fixing block 311 is provided with a support leg 315. The support leg 315 is used to stably support the measuring rod 1, thereby ensuring the accuracy of the measurement.
[0027] Furthermore, the support adjustment mechanism 31 includes a groove formed on the outer wall of the fixed block 311. A slide rod 312 is provided on the inner wall of the groove. A slider 313 is slidably provided on the outer wall of the slide rod 312. A connecting rod 314 is movably provided on one side of the slider 313. The bottom end of the connecting rod 314 is connected to the top end of the support leg 315. A movable groove 316 is formed on the outer wall of the fixed block 311. A connecting plate 317 is slidably provided on the inner wall of the movable groove 316. One end of the connecting plate 317 is provided on the outer wall of the connecting rod 314.
[0028] Furthermore, a connecting block 318 is provided on the outer wall of the connecting plate 317 away from the slider 313. The outer wall of the slider 313 is slidably mounted on the inner wall of the groove opened on the fixed block 311. The outer wall of the slider 313 fits snugly against the inner wall of the groove. A sliding hole is opened on one side of the outer wall of the connecting block 318. A spring 319 is provided on the inner wall of the sliding hole. A positioning rod 3110 is provided on the end of the spring 319 away from the inner wall of the sliding hole. An extension rod 3111 is provided on the outer wall of the end of the positioning rod 3110 connected to the spring 319. A pull rod 3113 is provided on the end of the extension rod 3111 away from the positioning rod 3110. A positioning hole 3112 is opened on the outer wall of the fixed block 311. A limit plate 3114 is provided on the top surface of the slider 313.
[0029] Furthermore, there are several positioning holes 3112, which are evenly and equidistantly distributed on the outer wall of the fixing block 311. The outer wall of the positioning rod 3110 is engaged with the inner wall of the positioning hole 3112. The outer wall of the positioning rod 3110 fits snugly against the inner wall of the positioning hole 3112. By setting several positioning holes 3112, the depth position of pipelines of different depths when the measuring rod 1 is measured can be adapted, thereby improving the stability and adaptability of the support.
[0030] The limiting mechanism 32 includes a first magnetic block 321 disposed on the support leg 315, and a second magnetic block 322 disposed on the outer wall of the measuring rod 1.
[0031] The implementation principle of the underground pipeline measuring device in this embodiment is as follows: When measuring the inner diameter of the pipeline, after the scale 2 is placed against the pipeline (the specific measurement method is described in detail in the comparative document), the lower depth position of the measuring rod 1 can be determined. Then, the pull rod 3113 can be pulled, causing the pull rod 3113 to drive the extension rod 3111 to move outward. At this time, the extension rod 3111 can drive the positioning rod 3110 to move outward. During the movement of the positioning rod 3110, the spring 319 will be compressed. At this time, the outer wall of the positioning rod 3110 can be disengaged from the inner wall of the positioning hole 3112, thus releasing the locking limit of the slider 313. Then, the connecting block 318 is pulled to drive the connecting plate 317 to move up and down. As the connecting plate 317 moves, the slider 313 can be moved up and down. Block 313 moves up and down on the outer wall of slider 312. As slider 313 moves up and down, it drives connecting rod 314 and support leg 315 to move up and down. At this time, the bottom end of support leg 315 can be adjusted to contact the ground. Simultaneously, the two support legs 315 are moved to drive connecting rod 314 to open and close to both sides through the rotational connection between connecting rod 314 and slider 313. After the adjustment is completed, pull rod 3113 can be released. The rebound of spring 319 can drive positioning rod 3110 to reset and re-insert into the inner wall of positioning hole 3112. In this way, the measuring rod 1 can be supported and measured by the two support legs 315. At the same time, the position of support leg 315 can be adjusted according to the pipeline of different depths to adapt to the support height of measuring rod 1, thereby improving the measurement accuracy of measuring rod 1.
[0032] The support leg 315 can be magnetically limited by the first magnetic block 321 set on the support leg 315 and the second magnetic block 322 set on the measuring rod 1. This can fix the support leg 315 when it is retracted and stored, thereby ensuring the stability of the support leg 315 during the storage process and preventing the support leg 315 from moving and causing unstable storage.
Claims
1. An underground pipeline measuring device, comprising a measuring rod (1) and a scale (2) disposed at the bottom of the measuring rod (1), characterized in that, The measuring rod (1) is provided with a support adjustment mechanism (31) and a limiting mechanism (32). The support adjustment mechanism (31) includes a fixing block (311) disposed on the outer wall of the measuring rod (1), and a support leg (315) disposed on the fixing block (311), the support leg (315) being used to support the measuring rod (1).
2. The underground pipeline measuring device according to claim 1, characterized in that, The support adjustment mechanism (31) includes a groove formed on the outer wall of the fixed block (311), a slide rod (312) is provided on the inner wall of the groove, a slider (313) is slidably provided on the outer wall of the slide rod (312), a connecting rod (314) is movably provided on one side of the slider (313), the bottom end of the connecting rod (314) is provided with the top end of the support leg (315), the outer wall of the fixed block (311) is provided with a movable groove (316), a connecting plate (317) is slidably provided on the inner wall of the movable groove (316), and one end of the outer wall of the connecting plate (317) is provided on the outer wall of the connecting rod (314).
3. The underground pipeline measuring device according to claim 1, characterized in that, The limiting mechanism (32) includes a first magnetic block (321) disposed on the support leg (315) and a second magnetic block (322) disposed on the outer wall of the measuring rod (1).
4. The underground pipeline measuring device according to claim 2, characterized in that, A connecting block (318) is provided on the outer wall of the connecting plate (317) away from the slider (313). A sliding hole is provided on one side of the outer wall of the connecting block (318). A spring (319) is provided on the inner wall of the sliding hole. A positioning rod (3110) is provided on the end of the spring (319) away from the inner wall of the sliding hole. An extension rod (3111) is provided on the outer wall of the end of the positioning rod (3110) connected to the spring (319). A pull rod (3113) is provided on the end of the extension rod (3111) away from the positioning rod (3110). A positioning hole (3112) is provided on the outer wall of the fixing block (311). A limit plate (3114) is provided on the top surface of the slider (313).
5. The underground pipeline measuring device according to claim 4, characterized in that, The number of positioning holes (3112) is several, and the positioning holes (3112) are evenly and equidistantly distributed on the outer wall of the fixing block (311).
6. The underground pipeline measuring device according to claim 4, characterized in that, The outer wall of the positioning rod (3110) is snapped into the inner wall of the positioning hole (3112), and the outer wall of the positioning rod (3110) is in close contact with the inner wall of the positioning hole (3112).
7. The underground pipeline measuring device according to claim 2, characterized in that, The outer wall of the slider (313) is slidably disposed on the inner wall of the groove opened on the fixed block (311), and the outer wall of the slider (313) is in close contact with the inner wall of the groove.