Dimension measuring tool for buried pipeline

Abstract

The utility model discloses a buried pipeline dimension measuring tool, which comprises a telescopic support frame and a measuring scale, the telescopic support frame comprises a telescopic shell and two telescopic sliding rods, a bidirectional threaded rod is rotatably arranged in the telescopic shell, the two telescopic sliding rods are respectively arranged between the inner walls of the two ends of the telescopic shell in a sliding manner, and the measuring scale is arranged on the telescopic shell. Threaded grooves are formed in one ends of the two telescopic sliding rods, the two telescopic sliding rods are in threaded connection with the two ends of the two-way threaded rod through the threaded grooves correspondingly, and an abutting plate is fixedly installed at one end of each telescopic sliding rod and located at one end of the telescopic shell. According to the pipeline size measuring tool provided by the utility model, through the arrangement of the telescopic support frame, when the inner diameter of the pipeline is measured, the measuring ruler can be positioned to the axis of the pipeline, and the accuracy of the measuring ruler in measuring the inner diameter of the pipeline is improved, so that the practicability of the pipeline size measuring tool in use is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline measurement technology, specifically to a tool for measuring the dimensions of buried pipelines. Background Technology

[0002] Due to their unique characteristics, pipelines are widely used in many different industries and fields, such as urban water supply and drainage systems and industrial pipeline systems. During pipeline installation, inspection, or maintenance, it is often necessary to measure the pipe's diameter. Buried pipes refer to a system where pipelines are buried underground for transportation, discharge, and supply. They are widely used in water supply, drainage, natural gas, and heating.

[0003] The existing precise measuring tool for pipe diameter is the inside micrometer, but the inside micrometer can only accurately measure pipes with very small diameters. Once the size exceeds a certain limit, the diameter can only be roughly measured by measuring tape or similar tools. Therefore, large pipes often have large errors in size.

[0004] Furthermore, traditional tools for measuring pipes are usually rulers or vernier calipers, which are difficult to use to locate the pipe's axis and result in significant errors. Therefore, there is an urgent need to design a new tool for measuring the dimensions of buried pipes to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a tool for measuring the dimensions of buried pipelines, in order to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dimensional measuring tool for buried pipelines includes a telescopic support frame and a measuring ruler. The telescopic support frame includes a telescopic shell and a telescopic sliding rod. A bidirectional threaded rod is rotatably installed inside the telescopic shell. There are two telescopic sliding rods, which are slidably installed between the inner walls of both ends of the telescopic shell. Each of the two telescopic sliding rods has a threaded groove at one end, and each of the two telescopic sliding rods is threaded to both ends of the bidirectional threaded rod through the threaded groove. An abutment plate is fixedly installed at one end of the telescopic sliding rod, and the abutment plate is located at one end of the telescopic shell.

[0008] The telescopic support frame consists of two sections, which are fixedly connected at their midpoints by a vertical cross, and a drive mechanism is provided between the two telescopic support frames.

[0009] The drive mechanism includes a rotating shaft, a worm gear, and a worm, with two worm gears and two worms.

[0010] A rotating mounting groove is provided between the two telescopic shells. The rotating shaft is rotatably mounted in the rotating mounting groove. The two worm gears are respectively fixedly mounted on the periphery of both ends of the rotating shaft. The two worm wheels are respectively fixedly mounted on the middle section of the two bidirectional threaded rods. The worm gears mesh with the worm wheels. A rotating knob is fixedly mounted on one end of the rotating shaft.

[0011] The measuring ruler includes a fixed ruler and a telescopic ruler. The fixed ruler is fixedly installed on one side of the telescopic shell. A sliding groove is provided at one end of the fixed ruler. The telescopic ruler is slidably installed in the sliding groove. One end of the telescopic ruler is fixedly connected to the contact plate.

[0012] A limiting groove is provided on the inner wall of the telescopic shell, and a limiting slider is fixedly installed on the periphery of one end of the telescopic slide rod. The limiting slider is slidably connected to the limiting groove, and a rubber pad is provided on one side of the contact plate.

[0013] In the above technical solution, the dimensional measuring tool for buried pipelines provided by this utility model has the following advantages:

[0014] (1) The pipe size measuring tool provided by this utility model can position the measuring ruler to the axis of the pipe when measuring the inner diameter of the pipe by setting the telescopic support frame, thereby improving the accuracy of the measuring ruler when measuring the inner diameter of the pipe and thus improving the practicality of the pipe size measuring tool.

[0015] (2) The pipe size measuring tool provided by this utility model has a measuring ruler that can extend and retract with the telescopic support frame when measuring pipes with larger diameters, so that the measuring ruler can be used for pipes of different diameters, thereby improving the applicability of the pipe size measuring tool.

[0016] (3) The pipe size measuring tool provided by this utility model can simultaneously drive two telescopic support frames to extend and retract synchronously through the set drive mechanism, so that the two telescopic support frames can more conveniently position the measuring ruler to the axis of the pipe, thereby improving the convenience of using the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a dimensional measuring tool for underground pipelines according to the present invention.

[0019] Figure 2 This is a schematic diagram of the drive mechanism structure provided in an embodiment of the buried pipeline dimension measuring tool of this utility model.

[0020] Figure 3 This is a schematic diagram of the telescopic shell and telescopic slide bar structure provided in an embodiment of the buried pipeline size measuring tool of this utility model.

[0021] 1. Telescopic support frame; 3. Measuring ruler; 4. Fixed ruler; 5. Telescopic ruler; 6. Drive mechanism; 7. Telescopic shell; 8. Telescopic slide rod; 9. Contact plate; 10. Rubber pad; 11. Bidirectional threaded rod; 12. Worm gear; 13. Rotating shaft; 14. Worm; 15. Limiting slide groove; 16. Limiting slider; 17. Threaded groove; 18. Rotating knob. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown in the figure, this utility model provides a dimensional measuring tool for buried pipelines, including a telescopic support frame 1 and a measuring ruler 3. The telescopic support frame 1 includes a telescopic shell 7 and a telescopic sliding rod 8. A bidirectional threaded rod 11 is rotatably installed inside the telescopic shell 7. There are two telescopic sliding rods 8, which are slidably installed between the inner walls of both ends of the telescopic shell 7. Each of the two telescopic sliding rods 8 has a threaded groove 17 at one end, and each of the two telescopic sliding rods 8 is threadedly connected to both ends of the bidirectional threaded rod 11 through the threaded groove 17. A contact plate 9 is fixedly installed at one end of the telescopic sliding rod 8, and the contact plate 9 is located at one end of the telescopic shell 7. There are two telescopic support frames 1. The middle sections of the telescopic support frames 1 are fixedly connected by vertical cross-connection, and a drive mechanism 6 is provided between the two telescopic support frames 1. The drive mechanism 6 includes a rotating shaft 13, a worm gear 12, and a worm 14. There are two worm gears 12 and two worm 14. A rotating mounting groove is opened between the two telescopic shells 7. The rotating shaft 13 is rotatably installed in the rotating mounting groove. The two worm 14 are respectively fixedly installed on the periphery of both ends of the rotating shaft 13. The two worm gears 12 are respectively fixedly installed in the middle sections of the two bidirectional threaded rods 11. The worm 14 meshes with the worm gear 12. A rotating knob 18 is fixedly installed at one end of the rotating shaft 13. A rubber pad 10 is provided on one side of the contact plate 9.

[0024] Specifically, in this embodiment, the dimensional measuring tool is placed between the pipes. Then, the rotating knob 18 is turned, causing the rotating shaft 13 to rotate. The rotation of the rotating shaft 13 drives the two worm gears 14 to rotate, which in turn drives the two worm wheels 12 to rotate synchronously. The synchronous rotation of the two worm wheels 12 drives the two bidirectional threaded rods 11 to rotate synchronously, which in turn drives the corresponding telescopic slide rod 8 to move along the telescopic shell 7. The movement of the telescopic slide rod 8 drives the contact plate 9 to move. When the telescopic slide rod 8 drives the contact plate 9 to contact the inner wall of the pipe, the rubber pad 10 on one side of the contact plate 9 will fit tightly against the inner wall of the pipe. Since the contact plate 9 is arc-shaped, the contact plate 9 and the rubber pad 10 can fit against the inner wall of the pipe, improving the stability between the contact plate 9 and the rubber pad 10 and the inner wall of the pipe. By having all four contact plates 9 and rubber pads 10 fit tightly against the inner wall of the pipe at the same time, the dimensional measuring tool can be stably placed inside the pipe. Then, the inner diameter of the pipe is measured using a measuring ruler.

[0025] This utility model provides a tool for measuring the size of buried pipes. The measuring ruler 3 includes a fixed ruler 4 and a telescopic ruler 5. The fixed ruler 4 is fixedly installed on one side of the telescopic shell 7. A sliding groove is opened at one end of the fixed ruler 4. The telescopic ruler 5 is slidably installed in the sliding groove. One end of the telescopic ruler 5 is fixedly connected to the contact plate 9.

[0026] In another embodiment of this utility model, when measuring the inner diameter of the pipe, the telescopic sliding rod 8 will drive the telescopic ruler 5 to move along the fixed ruler 4 when it extends and retracts. One end of the telescopic ruler 5 is aligned with the contact plate 9, so that when the contact plate 9 is in close contact with the inner wall of the pipe, one end of the telescopic ruler 5 is also in contact with the inner wall of the pipe. There are two measuring rulers 3. Each measuring ruler 3 measures the inner radius of the pipe. By multiplying the inner radius of the pipe measured by a single measuring ruler 3 by two, the value of the inner diameter of the pipe can be obtained.

[0027] In other embodiments, one end of the telescopic ruler 5 is disconnected from the contact plate 9, so that the telescopic distance of the telescopic ruler 5 can be freely adjusted by the operator. Thus, when the measuring ruler 3 is located outside the pipe, the diameter of the outer wall of the pipe can be measured by extending the telescopic ruler 5 to align with the outer wall of the pipe.

[0028] This utility model provides a tool for measuring the dimensions of buried pipelines. A limiting groove 15 is provided on the inner wall of the telescopic shell 7. A limiting slider 16 is fixedly installed on the periphery of one end of the telescopic slide rod 8. The limiting slider 16 is slidably connected to the limiting groove 15.

[0029] In another embodiment of the present invention, when the telescopic slide rod 8 moves telescopically, it can drive the limiting slider 16 to move along the limiting groove 15. The limiting slider 16 and the limiting groove 15 can limit the distance of the telescopic slide rod 8, so as to prevent the telescopic slide rod 8 from moving beyond the telescopic shell 7 and causing the telescopic slide rod 8 to separate from the telescopic shell 7.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tool for measuring the dimensions of buried pipelines, characterized in that, The device includes a telescopic support frame (1) and a measuring ruler (3). The telescopic support frame (1) includes a telescopic shell (7) and a telescopic slide rod (8). A bidirectional threaded rod (11) is rotatably installed inside the telescopic shell (7). There are two telescopic slide rods (8). The two telescopic slide rods (8) are slidably installed between the inner walls of the two ends of the telescopic shell (7). One end of each of the two telescopic slide rods (8) is provided with a threaded groove (17). The two telescopic slide rods (8) are threaded to both ends of the bidirectional threaded rod (11) through the threaded groove (17). A contact plate (9) is fixedly installed at one end of the telescopic slide rod (8). The contact plate (9) is located at one end of the telescopic shell (7).

2. The dimensional measuring tool for underground pipelines according to claim 1, characterized in that, The telescopic support frame (1) consists of two sections, which are fixedly connected by a vertical cross-section, and a drive mechanism (6) is provided between the two telescopic support frames (1).

3. The dimensional measuring tool for underground pipelines according to claim 2, characterized in that, The drive mechanism (6) includes a rotating shaft (13), a worm wheel (12) and a worm (14), with two worm wheels (12) and two worms (14).

4. The dimensional measuring tool for underground pipelines according to claim 3, characterized in that, A rotating mounting groove is provided between the two telescopic shells (7). The rotating shaft (13) is rotatably mounted in the rotating mounting groove. The two worms (14) are respectively fixedly mounted on the periphery of both ends of the rotating shaft (13). The two worm wheels (12) are respectively fixedly mounted in the middle section of the two bidirectional threaded rods (11). The worm (14) meshes with the worm wheel (12). A rotating knob (18) is fixedly mounted on one end of the rotating shaft (13).

5. The dimensional measuring tool for underground pipelines according to claim 1, characterized in that, The measuring ruler (3) includes a fixed ruler (4) and a telescopic ruler (5). The fixed ruler (4) is fixedly installed on one side of the telescopic shell (7). A sliding groove is provided at one end of the fixed ruler (4). The telescopic ruler (5) is slidably installed in the sliding groove. One end of the telescopic ruler (5) is fixedly connected to the contact plate (9).

6. The dimensional measuring tool for underground pipelines according to claim 1, characterized in that, The telescopic shell (7) has a limiting groove (15) on its inner wall periphery. A limiting slider (16) is fixedly installed on one end of the telescopic slide rod (8). The limiting slider (16) is slidably connected to the limiting groove (15). A rubber pad (10) is provided on one side of the contact plate (9).

Images