Multi-pipe-diameter pipeline radius detection device

By designing a multi-diameter pipe radius detection device, and utilizing a positioning plate and drive mechanism to achieve automatic center positioning of the detection device, the problem of measurement deviation in existing technologies is solved, the detection accuracy and adaptability are improved, and the accuracy and convenience of pipe inner diameter detection are ensured.

CN224175849UActive Publication Date: 2026-04-28SUZHOU CONCRETE CEMENT PROD RSCH INST TEST CTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU CONCRETE CEMENT PROD RSCH INST TEST CTR CO LTD
Filing Date
2025-06-13
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing concrete pipe testing equipment has difficulty maintaining a centered position during measurement, leading to deviations in measurement data and affecting the normal operation of the pipes.

Method used

A multi-diameter pipe radius detection device was designed. Through the combination of a positioning plate, a drive mechanism, a displacement mechanism and a pushing mechanism, the detection device can be automatically positioned at the center of the pipe. The screw drives the pushing mechanism to move, ensuring the accurate positioning and movement of the detection device inside the pipe.

Benefits of technology

This improves the adaptability and measurement accuracy of the detection device, reduces the deviation of human measurement data, and ensures the accuracy and convenience of pipe inner diameter detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of concrete pipeline detection, and discloses a multi-pipe-diameter pipeline radius detection device which comprises a positioning disc, and a bidirectional sliding groove is formed in the inner wall of the positioning disc. According to the multi-pipe-diameter pipeline radius detection device, the detection device is connected to the output end of the screw, when the inner diameter of a concrete pipeline needs to be detected, the positioning disc is arranged at the inlet of the pipeline, and the driving mechanism is matched with the displacement mechanism to drive the side positioning mechanism to extend towards the two sides of the pipeline and clamp and position the two sides of the pipeline; therefore, the detection device can be automatically located at the central position of the pipeline, and the pushing mechanism is driven by the screw to move, so that displacement driving force can be provided for the detection device, and the detection device can automatically extend into the pipeline for detection. Therefore, the device can be applied to radius detection of concrete pipelines of different specifications, and the overall adaptability and measurement precision of the detection device are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of concrete pipe inspection technology, and in particular relates to a multi-diameter pipe radius detection device. Background Technology

[0002] Concrete pipes are pipes made of concrete or reinforced concrete, used to transport fluids such as water, oil, and gas. They can be divided into four types: plain concrete pipes, ordinary reinforced concrete pipes, self-stressed reinforced concrete pipes, and prestressed concrete pipes. The inner diameter of a concrete pipe is an important indicator of its size. Before a concrete pipe is put into use, its inner diameter needs to be measured to ensure proper use in construction projects.

[0003] An existing patent (publication number: CN214666733U) discloses a method for measuring the inner diameter variation of pipes with different standard inner diameters. Its features include: a base at the front end of the mechanism, on which four quadrilateral sensor compartments are welded for holding sensors; threaded holes at the top of the sensor compartments for fixing the sensors; and two straightening claws at the rear end of the base connected by a threaded rod. Springs are provided between the base and the front straightening claw, and between the front and rear straightening claws, ensuring that the support arms of the straightening claws remain open in their natural state and can press against the inner wall of the pipe when subjected to force.

[0004] The standard testing of the inner diameter of concrete pipes requires the use of specialized testing equipment, such as inner diameter measuring instruments and laser scanners. However, existing testing equipment usually requires manual operation, and it is difficult to keep the testing equipment in a centered position during the measurement process. This leads to deviations in the measurement data by the personnel, which affects the normal commissioning of the pipeline. Therefore, a multi-diameter pipe radius testing device is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a multi-diameter pipe radius detection device, which has the advantages of being applicable to the radius detection of concrete pipes of different specifications, improving the overall adaptability and measurement accuracy of the detection device, and solving the problem pointed out in the aforementioned prior art that it is difficult to keep the detection equipment in a centered position during the measurement process, resulting in deviations in the measurement data by personnel, which affects the normal commissioning of the pipeline.

[0006] To achieve the above objectives, this application provides the following technical solution: a multi-diameter pipe radius detection device, comprising a positioning disk, wherein a bidirectional sliding groove is formed on the inner wall of the positioning disk, a driving mechanism is rotatably mounted inside the positioning disk, a displacement mechanism is engaged on both sides of the driving mechanism, a side positioning mechanism is fixedly mounted on the top of the displacement mechanism, a sleeve is fixedly connected to the inner outer surface of the positioning disk, a screw is threadedly connected to the inner surface of the sleeve, a pushing mechanism is threadedly connected to the output end of the screw, a detection device is rotatably connected to one end of the pushing mechanism, and a protective disk is provided on the outer surface of the positioning disk.

[0007] The above scheme connects the detection device to the output end of the screw. When it is necessary to detect the inner diameter of a concrete pipe, the positioning plate is placed at the pipe inlet. The drive mechanism, in conjunction with the displacement mechanism, drives the positioning mechanism to extend to both sides of the pipe and clamps and positions it on both sides, so that the positioning plate is located at the center of the pipe. This allows the detection device to automatically be positioned at the center of the pipe. The screw-driven push mechanism provides displacement driving force for the detection device to automatically extend into the pipe for detection. This combination allows it to be applied to the radius detection of concrete pipes of different specifications, improving the overall adaptability and measurement accuracy of the detection device.

[0008] Furthermore, the driving mechanism includes a driving rod, the output end of which is fixedly mounted with a first gear, and a second gear meshing with one side of the first gear, the second gear being rotatably mounted on the outside of the sleeve.

[0009] The above scheme uses a rotating drive rod to drive the first gear to rotate, which in turn drives the second gear to rotate. This drives the displacement mechanism to move to both sides of the positioning plate, thereby providing a lateral driving force for the displacement mechanism.

[0010] Furthermore, the displacement mechanism includes a rack, and a displacement slider is fixedly connected to the bottom of the rack. There are two racks and two displacement sliders.

[0011] With the above scheme, by connecting the two racks to the upper and lower parts of the second gear respectively, when the second gear is running, it drives the upper and lower racks to simultaneously move the displacement slider along the inside of the bidirectional slide groove, thereby driving the top side positioning mechanism to move towards the side edge of the pipe until the side positioning mechanism is clamped at the outer edge of the pipe and stops, so that the positioning plate is positioned at the center of the pipe.

[0012] Furthermore, the side positioning mechanism includes a side connecting plate, one end of which is fixedly connected to a cross sleeve plate, and one end of which is fixedly mounted with a side positioning plate.

[0013] The above scheme connects the side connecting plate to the top of the rack. When the rack moves, it pushes the side connecting plate and the cross sleeve plate to move towards the outer edge of the positioning plate until the side positioning plate is close to the outside of the pipe and then stops. This allows the two sets of side positioning plates to be clamped on the outside of the pipe, so that the positioning plate is placed in the center of the pipe. This provides a central positioning function for the detection device and prevents deviations in its movement path from affecting the measurement data.

[0014] Furthermore, the pushing mechanism includes a threaded sleeve block, on both sides of which push rods are rotatably mounted, and one end of each push rod is rotatably connected to the detection device.

[0015] With the above scheme, when the screw rotates, it drives the threaded sleeve block to move, and at the same time pushes the push rod to move along its longitudinal direction, so as to gradually push the detection device to extend to the inside of the pipe, so as to provide the inner diameter detection driving force for the detection device.

[0016] Furthermore, the detection device includes a detection disk, an internal threaded connection of which is a connecting block, which is rotatably connected to a push rod, and a scanner is provided on the outer surface of the detection disk.

[0017] The above scheme uses the displacement of the push rod to move the connecting block, thereby driving the detection plate and scanner to automatically move and extend into the pipeline. This makes the pipeline inner diameter detection convenient and efficient, and reduces the data deviation of human measurement.

[0018] Furthermore, the protective disc has outlets on both sides.

[0019] The above solution provides a through displacement space for components such as racks and pinions through the outlet, while also providing protection for components such as the first gear inside the positioning plate.

[0020] Furthermore, a knob is fixedly installed at one end of the drive lever.

[0021] With the above solution, the knob can provide auxiliary operation for the drive lever on the outside of the protective plate.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This multi-diameter pipe radius detection device connects the detection device to the output end of a screw. When it is necessary to detect the inner diameter of a concrete pipe, the positioning plate is placed at the pipe inlet. The driving mechanism, in conjunction with the displacement mechanism, drives the positioning mechanism to extend to both sides of the pipe and clamps and positions it on both sides, so that the positioning plate is located at the center of the pipe. This allows the detection device to automatically be positioned at the center of the pipe. The screw-driven pushing mechanism provides displacement driving force for the detection device to automatically extend into the pipe for detection. This combination allows it to be applied to the radius detection of concrete pipes of different specifications, improving the overall adaptability and measurement accuracy of the detection device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the threaded sleeve block of this utility model;

[0026] Figure 3 This is a schematic diagram of the side positioning plate of this utility model;

[0027] Figure 4 This is a schematic diagram of the rack structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the detection disc of this utility model.

[0029] The markings in the diagram are as follows: 1. Positioning plate; 2. Bidirectional slide; 3. Drive mechanism; 4. Displacement mechanism; 5. Side positioning mechanism; 6. Sleeve; 7. Screw; 8. Push mechanism; 9. Detection device; 10. Protective plate; 301. Drive rod; 302. First gear; 303. Second gear; 401. Rack; 402. Displacement slider; 501. Side connecting plate; 502. Horizontal sleeve plate; 503. Side positioning plate; 801. Threaded sleeve block; 802. Push rod; 901. Detection plate; 902. Connecting block; 903. Scanner; 12. Outlet; 304. Knob. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 3This embodiment of a multi-diameter pipe radius detection device includes a positioning disk 1. A bidirectional sliding groove 2 is formed on the inner wall of the positioning disk 1. A drive mechanism 3 is rotatably mounted inside the positioning disk 1. Displacement mechanisms 4 are engaged on both sides of the drive mechanism 3. A side positioning mechanism 5 is fixedly mounted on the top of the displacement mechanism 4. A sleeve 6 is fixedly connected to the inner outer surface of the positioning disk 1. A screw 7 is threadedly connected to the inside of the sleeve 6. A pushing mechanism 8 is threadedly connected to the output end of the screw 7. A detection device 9 is rotatably connected to one end of the pushing mechanism 8. A protective disk 10 is provided on the outer surface of the positioning disk 1. By connecting the detection device 9 to the output end of the screw 7… When it is necessary to detect the inner diameter of a concrete pipe, the positioning plate 1 is placed at the pipe inlet. The driving mechanism 3, in conjunction with the displacement mechanism 4, drives the side positioning mechanism 5 to extend to both sides of the pipe and clamps and positions it on both sides, so that the positioning plate 1 is located at the center of the pipe. This allows the detection device 9 to automatically be located at the center of the pipe. The screw 7 drives the pushing mechanism 8 to move, which provides displacement driving force for the detection device 9 to automatically extend into the pipe for detection. This combination can be applied to the radius detection of concrete pipes of different specifications, improving the overall adaptability and measurement accuracy of the detection device.

[0032] Please see Figure 3 and Figure 4 The drive mechanism 3 includes a drive rod 301, with a first gear 302 fixedly mounted at the output end of the drive rod 301. A second gear 303 meshes with one side of the first gear 302. The second gear 303 is rotatably mounted on the outside of the sleeve 6. The displacement mechanism 4 includes a rack 401, with a displacement slider 402 fixedly connected to the bottom of the rack 401. There are two racks 401 and two displacement sliders 402. By rotating the drive rod 301, it drives the first gear 302 to rotate, which in turn drives the second gear 303 to rotate. The drive displacement mechanism 4 moves to both sides of the positioning disk 1, thereby providing lateral movement driving force for the displacement mechanism 4. By connecting the two racks 401 to the upper and lower parts of the second gear 303 respectively, when the second gear 303 is running, the upper and lower racks 401 are driven to simultaneously drive the displacement slider 402 to slide along the inside of the bidirectional slide groove 2, thereby driving the top side positioning mechanism 5 to move together to the side edge of the pipe until the side positioning mechanism 5 is clamped at the outer edge of the pipe and stops, so that the positioning disk 1 is positioned at the center of the pipe.

[0033] Please see Figure 3 and Figure 4The side positioning mechanism 5 includes a side connecting plate 501. A horizontal sleeve plate 502 is fixedly connected to one end of the side connecting plate 501, and a side positioning plate 503 is fixedly installed on one end of the horizontal sleeve plate 502. The side connecting plate 501 is connected to the top of the rack 401. When the rack 401 moves, it pushes the side connecting plate 501 and the horizontal sleeve plate 502 to move towards the outer edge of the positioning plate 1 until the side positioning plate 503 is close to the outside of the pipe and then stops. This allows the two sets of side positioning plates 503 to be clamped on the outside of the pipe, so that the positioning plate 1 is placed in the center of the pipe. This provides a central positioning function for the detection device 9 and prevents deviations in its movement path from affecting the measurement data.

[0034] Please see Figure 2 and Figure 5 The pushing mechanism 8 includes a threaded sleeve 801, with push rods 802 rotatably mounted on both sides of the threaded sleeve 801. One end of the push rod 802 is rotatably connected to the detection device 9. The detection device 9 includes a detection disc 901, with a connecting block 902 threadedly connected inside the detection disc 901. The connecting block 902 is rotatably connected to the push rod 802. A scanner 903 is provided on the outer surface of the detection disc 901. When the screw 7 rotates, it drives the threaded sleeve 801 to move, and at the same time pushes the push rod 802 to move along its longitudinal direction, so as to gradually push the detection device 9 to extend to the inside of the pipe, so as to provide the driving force for the detection device 9 to detect the inner diameter. The displacement of the push rod 802 pushes the connecting block 902 to move, so as to push the detection disc 901 and the scanner 903 to automatically move and extend into the inside of the pipe. This combination makes the detection of the inner diameter of the pipe convenient and efficient, and reduces the data deviation of human measurement.

[0035] In this embodiment, a multi-diameter pipe radius detection device uses a drive rod 301 that works with a first gear 302 to drive a second gear 303 to rotate, providing a lateral driving force for the rack 401. This causes the rack 401 to move the displacement slider 402 along the interior of the bidirectional sliding groove 2. A side connecting plate 501 connects to the top of the rack 401, and a side positioning plate 503 positions the positioning disk 1 at the center of the pipe, thus centering the detection disk 901 and preventing deviations in its movement path from affecting the measurement data. A screw 7 works with a threaded sleeve 801 to push the push rod 802 longitudinally, providing a driving force for the detection disk 901 to detect its inner diameter. This allows the detection disk 901 and the scanner 903 to automatically move and extend into the pipe, making the pipe inner diameter detection convenient and efficient, and reducing data deviations caused by human measurement.

[0036] The working principle of the above embodiments is as follows:

[0037] Positioning disc 1 is placed at the pipe inlet. Rotating drive rod 301 drives first gear 302 to rotate, which in turn drives second gear 303 to rotate. When second gear 303 rotates, it drives upper and lower racks 401 and simultaneously drives displacement slider 402 to slide along the inside of bidirectional slide groove 2. When rack 401 moves, it pushes side connecting plate 501 and cross sleeve plate 502 to move towards the outer edge of positioning disc 1 until side positioning plate 503 is in close contact with the outside of pipe and then stops. This allows the two sets of side positioning plates 503 to be clamped on the outside of pipe, so that positioning disc 1 is placed at the center of pipe. Rotating screw 7 drives threaded sleeve block 801 to move, and simultaneously pushes push rod 802 to move along its longitudinal direction. The displacement of push rod 802 pushes connecting block 902 to move, so that detection disc 901 and scanner 903 automatically move into the inside of pipe and extend to perform detection.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application.

Claims

1. A multi-diameter pipe radius detection device, comprising a positioning plate (1), characterized in that: The inner wall of the positioning disk (1) is provided with a bidirectional sliding groove (2). The inside of the positioning disk (1) is rotatably installed with a drive mechanism (3). Both sides of the drive mechanism (3) are engaged with displacement mechanisms (4). The top of the displacement mechanism (4) is fixedly installed with a side positioning mechanism (5). The inner outer surface of the positioning disk (1) is fixedly connected with a sleeve (6). The inside of the sleeve (6) is threadedly connected with a screw (7). The output end of the screw (7) is threadedly connected with a push mechanism (8). One end of the push mechanism (8) is rotatably connected with a detection device (9). The outer surface of the positioning disk (1) is provided with a protective disk (10).

2. The multi-diameter pipe radius detection device according to claim 1, characterized in that: The driving mechanism (3) includes a driving rod (301), the output end of which is fixedly mounted with a first gear (302), and a second gear (303) meshes with one side of the first gear (302). The second gear (303) is rotatably mounted on the outside of the sleeve (6).

3. The multi-diameter pipe radius detection device according to claim 1, characterized in that: The displacement mechanism (4) includes a rack (401), and a displacement slider (402) is fixedly connected to the bottom of the rack (401). There are two racks (401) and two displacement sliders (402).

4. The multi-diameter pipe radius detection device according to claim 1, characterized in that: The side positioning mechanism (5) includes a side connecting plate (501), one end of which is fixedly connected to a cross sleeve plate (502), and one end of which is fixedly installed with a side positioning plate (503).

5. The multi-diameter pipe radius detection device according to claim 1, characterized in that: The pushing mechanism (8) includes a threaded sleeve block (801), and push rods (802) are rotatably mounted on both sides of the threaded sleeve block (801). One end of the push rod (802) is rotatably connected to the detection device (9).

6. The multi-diameter pipe radius detection device according to claim 5, characterized in that: The detection device (9) includes a detection disk (901), a connecting block (902) is threaded inside the detection disk (901), the connecting block (902) is rotatably connected to the push rod (802), and a scanner (903) is provided on the outer surface of the detection disk (901).

7. The multi-diameter pipe radius detection device according to claim 1, characterized in that: The protective plate (10) has outlets (12) on both sides.

8. The multi-diameter pipe radius detection device according to claim 2, characterized in that: A knob (304) is fixedly installed at one end of the drive lever (301).

Citation Information

Patent Citations

  • Contact type pipeline inner diameter detection mechanism

    CN214666733U