Pipe diameter measuring device for municipal road water supply and drainage pipe

Abstract

The invention relates to the technical field of measuring tools, in particular to a municipal road water supply and drainage pipe diameter measuring device which comprises a center umbrella handle screw, a sliding hinge flange and a first fixed hinge flange, the first fixed hinge flange is fixedly installed at the right end of the center umbrella handle screw, and the center umbrella handle screw is sleeved with the sliding hinge flange. A handle is arranged at the left end of the central umbrella handle screw rod, a threaded sleeve is in threaded connection with the central umbrella handle screw rod, and a measuring tape ring cylinder is rotationally connected between the threaded sleeve and the sliding hinge flange; according to the municipal pipeline measuring tool, the problems of an existing measuring tool in the aspects of applicability, operation complexity, precision, durability and the like are effectively solved, and the municipal pipeline measuring efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring tools, and particularly to a pipe diameter measuring device for water supply and drainage pipes in municipal roads. Background Art

[0002] In the design and construction of the drainage system of municipal roads, in order to verify whether the installation specifications of drainage pipes meet the standards, and in the process of repairing old pipes, there is a lack of pipeline construction data, it is necessary to measure the diameter of municipal pipes on-site.

[0003] At present, there are a variety of tools for measuring pipe diameters on the market, but they generally have the following limitations: Firstly, many measuring tools are only applicable to a specific pipe diameter range and cannot meet the diverse measurement needs of municipal pipes; some high-precision measuring tools are complex to operate and require professional personnel to operate, increasing the measurement cost and time; in harsh construction environments, the accuracy and durability of traditional measuring tools are easily affected, affecting the accuracy of measurement results.

[0004] Therefore, there is an urgent need for a new, convenient tool that can be used to measure the diameters of pipes of various diameters, improve the design and construction efficiency of the drainage system of municipal roads, and ensure the repair quality of old pipes. Summary of the Invention

[0005] The purpose of the present invention is to provide a pipe diameter measuring device for water supply and drainage pipes in municipal roads to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A pipe diameter measuring device for water supply and drainage pipes in municipal roads includes a central umbrella handle screw, a sliding hinge flange, and a first fixed hinge flange. The first fixed hinge flange is fixedly installed at the right end of the central umbrella handle screw. The sliding hinge flange is sleeved on the central umbrella handle screw. The left end of the central umbrella handle screw is a handle. A threaded sleeve is threadedly connected to the central umbrella handle screw. A tape measure ring cylinder is rotatably connected between the threaded sleeve and the sliding hinge flange. The tape measure ring cylinder is also sleeved on the central umbrella handle screw. Three or more spreading and retracting rods are hinged to the first fixed hinge flange, and the angle between adjacent spreading and retracting rods is the same. An inclined strut is hinged between the middle of each spreading and retracting rod and the sliding hinge flange. The end of the tape on the tape measure ring cylinder is connected to one end of one of the spreading and retracting rods away from the first fixed hinge flange.

[0008] Further, a second fixed hinge flange is fixedly installed at the right end of the central umbrella handle screw rod. A plurality of parallel rods are hinged to the second fixed hinge flange. The length of the parallel rods is equal to that of the expansion and retraction rods. The interval angles between adjacent parallel rods are the same. The number of parallel rods on the second fixed hinge flange is the same as that of the expansion and retraction rods on the first fixed hinge flange, and the parallel rods on the second fixed hinge flange correspond to the expansion and retraction rods on the first fixed hinge flange one by one. A connecting rod is hinged between the corresponding parallel rod and the expansion and retraction rod, and the connecting rod is parallel to the axis of the central umbrella handle screw rod.

[0009] Further, a precision shaft is provided at the right end of the central umbrella handle screw rod. The inner circles of the first fixed hinge flange and the second fixed hinge flange are precision turned. The precision shaft is inserted and fitted with the inner circles of the first fixed hinge flange and the second fixed hinge flange. An intermediate sleeve is also sleeved on the precision shaft. The intermediate sleeve is placed between the first fixed hinge flange and the second fixed hinge flange. Compression nuts are respectively threadedly connected to both ends of the precision shaft, and the compression nuts at both ends are respectively pressed against the left end face of the first fixed hinge flange and the right end face of the second fixed hinge flange.

[0010] Further, the tape measure ring cylinder includes an inner wall and an outer wall. An installation ring groove is formed between the inner wall and the outer wall. The tape is installed in the installation ring groove. A coil spring is also installed in the installation ring groove. One end of the coil spring is connected to the inner wall, and the other end is connected to one end of the tape. The end of the tape away from the coil spring passes through a through hole on the outer wall.

[0011] Further, guide wheels are rotatably connected to one ends of the parallel rods away from the second fixed hinge flange and one ends of the expansion and retraction rods of the first fixed hinge flange.

[0012] Further, strip-shaped anti-slip ridges are uniformly arranged on the circumferential outer wall of the threaded sleeve.

[0013] Further, the central umbrella handle screw rod, the parallel rods and the expansion and retraction rods are all made of 6061-T6 aluminum alloy.

[0014] Further, hinge seats are provided on the sliding hinge flange, the first fixed hinge flange and the second fixed hinge flange, and hinge shafts are rotatably connected to the hinge seats.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention can flexibly adjust the deployment angle of the telescopic rod, thus flexibly adapting to pipes of different diameters and meeting the diverse measurement requirements of municipal pipes; the operation process is simple and intuitive, without the need for complex professional skills, reducing the measurement cost and time; the hinged connection method between the telescopic rod and the diagonal brace ensures the stability and durability of the device; the overall structure of the present invention is compact, facilitating carrying and storage, and suitable for rapid deployment at the design and construction sites of municipal road drainage systems. The present invention effectively solves the problems of existing measurement tools in terms of applicability, operation complexity, accuracy, and durability, improving the efficiency and accuracy of municipal pipe measurement.

[0017] 2. In the present invention, the parallel rods hinged on the second fixed hinge flange correspond one by one to the telescopic rods on the first fixed hinge flange and are connected by connecting rods. When the threaded sleeve moves and pushes the sliding hinge flange to move leftward, while the telescopic rods are unfolded by the diagonal braces, due to the transmission effect of the connecting rods, the parallel rods will also be unfolded synchronously, maintaining the same angle and speed as the telescopic rods, thereby forming a more stable circular measurement framework inside the pipe, ensuring that the axis of the central umbrella handle screw coincides with the axis of the measured pipe during measurement and improving the measurement accuracy.

[0018] 3. In the present invention, guide wheels are added at the distal ends of both the parallel rods and the telescopic rods. These guide wheels can roll as the parallel rods and the telescopic rods are unfolded, reducing the direct friction with the inner wall of the pipe and improving the smoothness of the device moving inside the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a pipe diameter measuring device for municipal road water supply and drainage pipes;

[0020] Figure 2 It is a schematic structural diagram of the tape measure ring cylinder;

[0021] Figure 3 It is an exploded schematic structural diagram of the tape measure ring cylinder;

[0022] Figure 4 It is an exploded schematic structural diagram of a pipe diameter measuring device for municipal road water supply and drainage pipes;

[0023] Figure 5 It is a schematic structural diagram of the central umbrella handle screw;

[0024] Figure 6 It is a schematic structural diagram of the part of a pipe diameter measuring device for municipal road water supply and drainage pipes except the central umbrella handle screw;

[0025] Figure 7 It is a schematic structural diagram of the sliding hinge flange;

[0026] Figure 8 It is a schematic structural diagram of the guide wheel.

[0027] In the figure: 1. Sliding hinge flange; 2. Hinge seat; 3. Hinge shaft; 4. Intermediate sleeve; 5. Telescopic rod; 6. Parallel rod; 7. Connecting rod; 8. Guide wheel; 9. First fixed hinge flange; 10. Second fixed hinge flange; 11. Diagonal brace; 12. Tape measure reel; 13. Outer wall; 14. Inner wall; 15. Installation ring groove; 16. Perforation; 17. Torsion spring; 18. Tape; 19. Threaded sleeve; 20. Central umbrella handle screw; 21. Handle; 22. Precision shaft; 23. Compression nut. Specific embodiments

[0028] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1: Please refer to Figures 1 to 8 , a pipe diameter measuring device for municipal road water supply and drainage pipes, including a central umbrella handle screw 20, a sliding hinge flange 1, and a first fixed hinge flange 9. The first fixed hinge flange 9 is fixedly installed at the right end of the central umbrella handle screw 20. The sliding hinge flange 1 is sleeved on the central umbrella handle screw 20. The left end of the central umbrella handle screw 20 is a handle 21. A threaded sleeve 19 is threadedly connected to the central umbrella handle screw 20. A tape measure reel 12 is rotatably connected between the threaded sleeve 19 and the sliding hinge flange 1. The tape measure reel 12 is also sleeved on the central umbrella handle screw 20. Three or more telescopic rods 5 are hinged on the first fixed hinge flange 9, and the included angles between adjacent telescopic rods 5 are the same. A diagonal brace 11 is hinged between the middle of each telescopic rod 5 and the sliding hinge flange 1. The end of the tape 18 on the tape measure reel 12 is connected to one end of a telescopic rod 5 far from the first fixed hinge flange 9.

[0030] The tape measure reel 12 includes an inner wall 14 and an outer wall 13. An installation ring groove 15 is formed between the inner wall 14 and the outer wall 13. The tape 18 is installed in the installation ring groove 15. A torsion spring 17 is also installed in the installation ring groove 15. One end of the torsion spring 17 is connected to the inner wall 14, and the other end is connected to one end of the tape 18. The end of the tape 18 far from the torsion spring 17 passes through a perforation 16 on the outer wall 13.

[0031] Strip-shaped anti-slip ridges are evenly arranged on the circumferential outer wall of the threaded sleeve 19.

[0032] The working principle of this embodiment:

[0033] In the initial state, the device is in an undeployed state. The tape 18 in the tape reel 12 is wound tightly by the torsion spring 17 and stored in the mounting ring groove 15. The deployment and retraction rod 5 and the diagonal strut 11 are both in a folded state and are closely arranged around the first fixed hinge flange 9. During measurement, the operator holds the handle 21 and inserts the device into the pipeline to be measured until the first fixed hinge flange 9 is closely attached to the inner wall of the pipeline. By rotating the threaded sleeve 19, it moves leftward along the central umbrella handle screw 20. Since the threaded sleeve 19 is rotationally connected to the tape reel 12, this action does not directly drive the tape reel 12 to rotate, but will push the sliding hinge flange 1 to move leftward. As the sliding hinge flange 1 moves, through the transmission of the diagonal strut 11, the deployment and retraction rod 5 gradually unfolds outward until all the deployment and retraction rods 5 are in contact with the inner wall of the pipeline, forming a circular structure matching the inner diameter of the pipeline. At this time, the tape 18 in the tape reel 12 is gradually pulled out under the elastic force of the torsion spring 17, and its end is connected to one of the deployment and retraction rods 5 and extends as the deployment and retraction rod unfolds. The operator can directly read the inner diameter size of the pipeline by observing the scale marked on the tape 18.

[0034] After the measurement is completed, rotate the threaded sleeve 19 in the reverse direction to make the sliding hinge flange 1 move rightward. Through the diagonal strut 11, the deployment and retraction rod 5 is driven to gradually fold. At the same time, the tape 18 is automatically retracted into the mounting ring groove 15 under the action of the torsion spring 17, and the device returns to the initial state, facilitating the next measurement.

[0035] This embodiment can flexibly adjust the unfolding angle of the deployment and retraction rod 5, thereby flexibly adapting to pipelines with different diameters and meeting the diverse measurement requirements of municipal pipelines; the operation process is simple and intuitive, without complex professional skills, reducing the measurement cost and time; the hinged manner of the deployment and retraction rod 5 and the diagonal strut 11 ensures the stability and durability of the device; the overall structure of this embodiment is compact, facilitating carrying and storage, and is suitable for rapid deployment at the design and construction sites of the municipal road drainage system. This embodiment effectively solves the problems of existing measurement tools in terms of applicability, operation complexity, accuracy, and durability, improving the efficiency and accuracy of municipal pipeline measurement.

[0036] Embodiment 2: Please refer to Figures 1 to 8 , a device for measuring the pipe diameter of water supply and drainage pipes for municipal roads, which is different from Embodiment 1 in that a second fixed hinge flange 10 is fixedly installed at the right end of the central umbrella handle screw 20. A plurality of parallel rods 6 are hinged on the second fixed hinge flange 10. The length of the parallel rods 6 is equal to that of the deployment and retraction rod 5. The angular intervals between adjacent parallel rods 6 are the same. The number of parallel rods 6 on the second fixed hinge flange 10 is the same as the number of deployment and retraction rods 5 on the first fixed hinge flange 9, and the parallel rods 6 on the second fixed hinge flange 10 and the deployment and retraction rods 5 on the first fixed hinge flange 9 correspond one by one. A connecting rod 7 is hinged between the corresponding parallel rod 6 and the deployment and retraction rod 5, and the connecting rod 7 is parallel to the axis of the central umbrella handle screw 20.

[0037] A precision shaft 22 is provided at the right end of the central umbrella handle screw rod 20. The inner circles of the first fixed hinge flange 9 and the second fixed hinge flange 10 are precision turned. The precision shaft 22 is inserted and fitted with the inner circles of the first fixed hinge flange 9 and the second fixed hinge flange 10. An intermediate sleeve 4 is also sleeved on the precision shaft 22. The intermediate sleeve 4 is placed between the first fixed hinge flange 9 and the second fixed hinge flange 10. Threaded connection nuts 23 are respectively provided at both ends of the precision shaft 22, and the threaded connection nuts 23 at both ends are respectively pressed against the left end face of the first fixed hinge flange 9 and the right end face of the second fixed hinge flange 10.

[0038] Hinge seats 2 are provided on the sliding hinge flange 1, the first fixed hinge flange 9 and the second fixed hinge flange 10. Hinge shafts 3 are rotatably connected to the hinge seats 2.

[0039] In this embodiment, a second fixed hinge flange 10 is added at the right end of the central umbrella handle screw rod 20, and through the combination of the precision shaft 22 and the threaded connection nut 23, precise and stable fixation of the first fixed hinge flange 9 and the second fixed hinge flange 10 is achieved. The insertion and fitting of the precision shaft 22 and the pressing action of the threaded connection nut 23 ensure that there is no relative displacement between the flanges, improving the stability and precision of the entire measuring device.

[0040] The parallel rods 6 hinged to the second fixed hinge flange 10 correspond one by one to the deployment and retraction rods 5 on the first fixed hinge flange 9 and are connected by connecting rods 7. When the threaded sleeve 19 moves and pushes the sliding hinge flange 1 to move leftward, while the deployment and retraction rods 5 are unfolded by the diagonal strut 11, due to the transmission effect of the connecting rod 7, the parallel rods 6 will also be unfolded synchronously, maintaining the same angle and speed as the deployment and retraction rods 5, thereby forming a more stable circular measuring frame inside the pipeline, ensuring that the axis of the central umbrella handle screw rod 20 coincides with the axis of the pipeline to be measured during measurement, and improving the measurement accuracy.

[0041] The linkage design of the parallel rods 6 and the deployment and retraction rods 5 not only enhances the supporting force of the measuring device inside the pipeline but also improves the stability of the measurement process. When the device is fully unfolded, the parallel rods 6 and the deployment and retraction rods 5 together form a circular structure with stronger rigidity, reducing the influence of unevenness or deformation of the pipeline inner wall on the measurement results.

[0042] Embodiment 3: Please refer to Figures 1 to 8 , a pipe diameter measuring device for municipal road water supply and drainage pipes, which is different from Embodiment 2 in that guide wheels 8 are rotatably connected to one end of the parallel rod 6 far from the second fixed hinge flange 10 and one end of the deployment and retraction rod 5 on the first fixed hinge flange 9.

[0043] The central umbrella handle screw rod 20, the parallel rods 6 and the deployment and retraction rods 5 are all made of 6061-T6 aluminum alloy.

[0044] In this embodiment, guide wheels 8 are additionally provided at the distal ends of the parallel rod 6 and the deployment and retraction rod 5. These guide wheels 8 can roll as the parallel rod 6 and the deployment and retraction rod 5 are deployed, reducing the direct friction with the inner wall of the pipeline and improving the smoothness of the device moving in the pipeline.

[0045] The central umbrella handle screw rod 20, the parallel rod 6, and the deployment and retraction rod 5 are made of 6061-T6 aluminum alloy. This material not only has excellent strength and toughness but also has good corrosion resistance and lightweight characteristics, making the entire measuring device more durable and easy to operate.

Claims

1. A pipe diameter measuring device for municipal road water supply and drainage pipes, comprising a central umbrella handle screw (20), a sliding hinge flange (1), and a first fixed hinge flange (9), characterized in that: The first fixed hinged flange (9) is fixedly mounted on the right end of the central umbrella handle screw (20), the sliding hinged flange (1) is sleeved on the central umbrella handle screw (20), the left end of the central umbrella handle screw (20) is a handle (21), the central umbrella handle screw (20) is threadedly connected by a threaded sleeve (19), the threaded sleeve (19) and the sliding hinged flange (1) are rotatably connected by a tape measure ring tube (12), the tape measure ring tube (12) is also sleeved on the central umbrella handle screw (20), three or more expansion and retraction rods (5) are hinged on the first fixed hinged flange (9), the interval angles between adjacent expansion and retraction rods (5) are the same, a diagonal support rod (11) is hinged between the middle part of each expansion and retraction rod (5) and the sliding hinged flange (1), and the end of the tape (18) on the tape measure ring tube (12) is connected to one end of one of the expansion and retraction rods (5) away from the first fixed hinged flange (9).

2. A pipe diameter measuring device for municipal road water supply and drainage pipes according to claim 1, characterized in that: A second fixed hinged flange (10) is also fixedly mounted on the right end of the central umbrella handle screw (20), and a plurality of parallel rods (6) are hinged on the second fixed hinged flange (10), the length of the parallel rods (6) is equal to that of the expansion and retraction rods (5), and the interval angles between adjacent parallel rods (6) are the same, the number of the parallel rods (6) on the second fixed hinged flange (10) is the same as that of the expansion and retraction rods (5) on the first fixed hinged flange (9), and the parallel rods (6) on the second fixed hinged flange (10) correspond to the expansion and retraction rods (5) on the first fixed hinged flange (9) one by one, and a connecting rod (7) is hinged between the corresponding parallel rods (6) and the expansion and retraction rods (5), and the connecting rod (7) is parallel to the axis of the central umbrella handle screw (20).

3. A pipe diameter measuring device for municipal road water supply and drainage pipes according to claim 2, characterized in that: A precision shaft (22) is provided at the right end of the central umbrella handle screw (20); the inner circles of the first fixed hinge flange (9) and the second fixed hinge flange (10) are precision-machined; the precision shaft (22) is plug-fitted with the inner circles of the first fixed hinge flange (9) and the second fixed hinge flange (10); an intermediate sleeve (4) is also sleeved on the precision shaft (22); the intermediate sleeve (4) is placed between the first fixed hinge flange (9) and the second fixed hinge flange (10); two ends of the precision shaft (22) are respectively threadedly connected with a clamping nut (23); the clamping nuts (23) at the two ends are respectively pressed on the left end surface of the first fixed hinge flange (9) and the right end surface of the second fixed hinge flange (10).

4. A pipe diameter measuring device for municipal road water supply and drainage pipes according to claim 1, characterized in that: The tape measure ring tube (12) comprises an inner wall (14) and an outer wall (13); a mounting annular groove (15) is provided between the inner wall (14) and the outer wall (13); the tape measure (18) is installed in the mounting annular groove (15); a coil spring (17) is also installed in the mounting annular groove (15); one end of the coil spring (17) is connected to the inner wall (14) and the other end is connected to one end of the tape measure (18); the end of the tape measure (18) away from the coil spring (17) passes through a through hole (16) on the outer wall (13).

5. A pipe diameter measuring device for municipal road water supply and drainage pipes according to claim 1 or 2, characterized in that: One end of the parallel rod (6) away from the second fixed hinged flange (10) and one end of the expansion and retraction rod (5) connected to the first fixed hinged flange (9) are both rotatably connected to a guide wheel (8).

6. The device for measuring the diameter of municipal road water supply and drainage pipes according to claim 1, characterized in that: Strip-shaped anti-slip ridges are evenly arranged on the circumferential outer wall of the threaded sleeve (19).

7. A pipe diameter measuring device for municipal road water supply and drainage pipes according to claim 1 or 2, characterized in that: The central umbrella handle screw rod (20), the parallel rod (6) and the expansion and contraction rod (5) are all made of 6061-T6 aluminum alloy.

8. A pipe diameter measuring device for municipal road water supply and drainage pipes according to claim 1 or 2, characterized in that: The sliding hinged flange (1), the first fixed hinged flange (9) and the second fixed hinged flange (10) are all provided with hinged seats (2), and the hinged seats (2) are rotatably connected with hinge shafts (3).

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