A rotating probe device for inspecting the inner wall of heating water pipes

By designing rotating probe and limiting components to adapt to different pipe diameters, the problem of existing devices being unable to adapt to different pipe diameters was solved, achieving efficient and stable inspection of the inner wall of warm water pipes.

CN224516319UActive Publication Date: 2026-07-17WENZHOU UNIV OUJIANG COLLEGE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU UNIV OUJIANG COLLEGE
Filing Date
2025-09-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing heating water pipe testing devices cannot adapt to different pipe diameters, have low testing accuracy and poor stability, resulting in low testing efficiency.

Method used

A device comprising a detection rotating probe assembly and a limiting assembly was designed. Through the cooperation of springs and sliding seats, it achieves adaptability to different pipe diameters. The device ensures stability and precise positioning within the pipeline by driving a bidirectional threaded rod and a limiting plate through a drive motor.

Benefits of technology

It improves the versatility and detection accuracy of the device, ensures stability within the pipeline, and enhances detection efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of pipeline inspection equipment, specifically a rotary probe device for inspecting the inner wall of a hot water pipeline. The rotary probe assembly also includes a sliding seat, which is located at the outer end of a guide rod. A spring is provided at one end of the guide rod near the sliding seat, with one end of the spring fixedly connected to one end of the sliding seat and the other end of the spring fixedly connected to one end of a fixed seat. This utility model utilizes the interaction between the spring and the sliding seat in the rotary probe assembly. Under the elastic force of the spring, the sliding seat can be pushed to slide on the guide rod. Furthermore, through a series of linkage structures, the roller is made to fit tightly against the inner wall of the pipeline, enabling the device to adapt to pipelines of different diameters and enhancing its versatility.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipeline inspection equipment, specifically a rotating probe device for inspecting the inner wall of a hot water pipeline. Background Technology

[0002] During the use of heating water pipes, the inner wall of the pipe may develop defects such as wear, cracks, and blockages due to long-term water flow erosion and corrosion. If these defects are not detected and dealt with in time, they may lead to accidents such as pipe leaks and bursts, causing great inconvenience and safety hazards to production and daily life. In the existing technology, the device with patent number CN202222726113.2 collects image information of the inner wall of the pipe through a monitoring camera. The device is held by the inspection worker through the free end of the anti-fall rope to prevent it from falling. The impact force when falling is buffered by the elastic force of the rubber column on the bottom of the turntable and the spring, preventing damage to the industrial inspection camera and monitoring camera.

[0003] However, the support structure of this device is mostly designed with fixed dimensions, which cannot be flexibly adjusted according to changes in the inner diameter of the pipe. When dealing with hot water pipes of different specifications, it is necessary to replace the corresponding model of testing equipment, which is cumbersome and has poor versatility. At the same time, the device has poor testing stability. The pipe often has a certain degree of bending or uneven inner wall. The existing testing device is prone to shaking after entering the pipe, which causes the probe to shake and affects the testing accuracy.

[0004] Therefore, developing a device that can efficiently and accurately detect defects in the inner wall of heating water pipes is of great practical significance. Utility Model Content

[0005] The purpose of this invention is to provide a rotating probe device for detecting the inner wall of hot water pipes, so as to solve the problems mentioned in the background art of existing devices being difficult to adapt to pipes of different diameters and having low detection accuracy.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rotating probe device for detecting the inner wall of a hot water pipe, comprising a rotating probe assembly and a limiting assembly; the rotating probe assembly is symmetrically arranged at both ends of the limiting assembly, the rotating probe assembly includes a fixed base, a guide rod is provided at one end of the fixed base, a mounting plate is provided at the other end of the guide rod, a lighting lamp is provided at the other end of the mounting plate, and a probe is provided on the side of the mounting plate near the lighting lamp.

[0007] The rotating probe assembly also includes a sliding seat, which is located at the outer end of the guide rod. A spring is provided at one end of the guide rod near the sliding seat, with one end of the spring fixedly connected to one end of the sliding seat and the other end of the spring fixedly connected to one end of the fixed seat.

[0008] The rotating probe assembly also includes a hinge seat one, which is symmetrically arranged on the outer end of the fixed seat. A connecting rod is provided above the hinge seat one, and a bracket is provided at the other end of the connecting rod. A roller is provided at the other end of the bracket. A hinge seat two is symmetrically arranged on the outer end of the sliding seat one, and a support rod is provided above the hinge seat two. The other end of the support rod is hinged to the middle of the connecting rod through a hinge.

[0009] The limiting component includes an outer shell, with fixed plates symmetrically arranged at both ends of the outer shell and sliding grooves symmetrically opened at the top of the outer shell. A drive motor is installed inside the outer shell, with a bidirectional threaded rod at the output end of the drive motor and a bearing at the other end of the bidirectional threaded rod. The other end of the bearing is rotatably connected to one end of the fixed plate.

[0010] The limiting assembly also includes a sliding seat two, which is symmetrically arranged at the outer end of the bidirectional threaded rod. The sliding seat two is threadedly connected to the bidirectional threaded rod. A hinge seat three is symmetrically provided at the top of the sliding seat two. A connecting rod is provided above the hinge seat three. The connecting rod is adapted to the sliding groove of the outer shell. A hinge seat four is provided at the other end of the connecting rod. A limiting plate is provided at the other end of the hinge seat four.

[0011] The limit plate of the limit component is equipped with a wear-resistant pad at its outer end. The wear-resistant pad is made of rubber and has anti-slip texture on its surface.

[0012] A reinforcing rib is provided between the fixed base and the mounting plate. The reinforcing ribs are symmetrically distributed on both sides of the guide rod. One end of the reinforcing rib is welded to the fixed base, and the other end of the reinforcing rib is welded to the mounting plate. The reinforcing rib is made of stainless steel.

[0013] The present invention has the following advantages: 1. The present invention uses the spring and the sliding seat in the detection rotating probe assembly to cooperate with each other. Under the elastic force of the spring, the sliding seat can be pushed to slide on the guide rod. Then, through a series of linkage structures, the roller is made to fit tightly against the inner wall of the pipe, so that the device can adapt to pipes of different diameters and enhance the versatility of the device.

[0014] 2. This utility model uses a drive motor in the limiting assembly to rotate a bidirectional threaded rod, causing the sliding seat two to move on the bidirectional threaded rod. This, in turn, drives the limiting plate to move via the connecting rod. The limiting plate can limit the overall device, preventing excessive shaking during the testing process, ensuring the stability of the testing process, and improving the testing accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the detection rotating probe assembly of this utility model;

[0017] Figure 3 This is a partially enlarged view of the overall structure of the limiting component of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the limiting component of this utility model.

[0019] The attached figures are labeled as follows:

[0020] 1. Rotary probe assembly; 11. Fixed base; 12. Guide rod; 13. Mounting plate; 14. Sliding seat one; 15. Hinge seat one; 16. Connecting rod; 17. Bracket; 18. Support rod; 19. Hinge seat two; 110. Spring; 111. Lighting lamp; 112. Probe; 2. Limiting assembly; 21. Housing; 22. Fixed plate; 23. Drive motor; 24. Bidirectional threaded rod; 25. Bearing; 26. Sliding seat two; 27. Hinge seat three; 28. Connecting rod; 29. ​​Hinge seat four; 210. Limiting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] As attached Figure 1 To be continued Figure 4The aforementioned rotating probe device for detecting the inner wall of a hot water pipe includes a detection rotating probe assembly 1 and a limiting assembly 2;

[0025] Example 1

[0026] The rotating detection probe assembly 1 is symmetrically arranged at both ends of the limiting assembly 2. This symmetrical distribution structure enables simultaneous detection of different locations within the pipeline, improving detection efficiency. The rotating detection probe assembly 1 includes a fixed base 11, which serves as the basic load-bearing component, providing installation support for subsequent components. One end of the fixed base 11 is equipped with a guide rod 12, which serves as a guide and connector. The other end of the guide rod 12 is equipped with a mounting plate 13, which is used to install detection and lighting components. The other end of the mounting plate 13 is equipped with an illumination lamp 111, which provides sufficient light to the detection area, ensuring clear imaging by the probe 112. The probe 112 is located on the side of the mounting plate 13 near the illumination lamp 111, and the probe 112 is used to acquire images of the inner wall of the pipeline.

[0027] The detection rotating probe assembly 1 also includes a sliding seat 14, which is located at the outer end of the guide rod 12. The guide rod 12 provides a trajectory guide for the sliding of the sliding seat 14. A spring 110 is provided at one end of the guide rod 12 near the sliding seat 14. One end of the spring 110 is fixedly connected to one end of the sliding seat 14, and the other end of the spring 110 is fixedly connected to one end of the fixed seat 11. Through the elastic extension and contraction of the spring 110, the sliding seat 14 can be moved along the guide rod 12, thereby realizing the adjustment of the subsequent linkage structure.

[0028] The rotating probe assembly 1 also includes a hinge seat 15, which is symmetrically arranged at the outer end of the fixed seat 11 to provide a hinge fulcrum for the connecting rod 16. The connecting rod 16 is provided above the hinge seat 15, and a bracket 17 is provided at the other end of the connecting rod 16. The connecting rod 16 can transmit force to drive the bracket 17 to move. A roller is provided at the other end of the bracket 17. The roller can reduce friction when the device moves in the pipe, making the device move more smoothly. A hinge seat 2 19 is symmetrically arranged at the outer end of the sliding seat 14 to provide a hinge fulcrum for the support rod 18. A support rod 18 is provided above the hinge seat 2 19. The other end of the support rod 18 is hinged to the middle of the connecting rod 16 through a hinge. When the sliding seat 14 moves, the support rod 18 can push the connecting rod 16 to rotate around the hinge seat 15, thereby adjusting the contact state between the roller and the inner wall of the pipe.

[0029] Example 2

[0030] Based on Example 1, in order to further achieve precise positioning detection, a limiting component was set at one end of the detection rotating probe group.

[0031] The limiting component 2 includes an outer shell 21, which provides protection and installation space for the internal components. The outer shell 21 has symmetrical fixing plates 22 at both ends, which enhance the structural stability of the outer shell 21 and provide installation support for the bearing 25. The top of the outer shell 21 has symmetrical sliding grooves to provide a trajectory for the movement of the connecting rod 28.

[0032] The outer casing 21 houses a drive motor 23, which serves as a power source to provide power for the rotation of the bidirectional threaded rod 24. The output end of the drive motor 23 is equipped with the bidirectional threaded rod 24, and the other end of the bidirectional threaded rod 24 is equipped with a bearing 25. The bearing 25 can reduce the friction when the bidirectional threaded rod 24 rotates. The other end of the bearing 25 is rotatably connected to one end of the fixing plate 22. The fixing plate 22 supports and limits the bidirectional threaded rod 24 through the bearing 25, ensuring the stable rotation of the bidirectional threaded rod 24.

[0033] The limiting component 2 also includes a sliding seat 26, which is symmetrically arranged at the outer end of the bidirectional threaded rod 24. The sliding seat 26 is threadedly connected to the bidirectional threaded rod 24. When the bidirectional threaded rod 24 rotates, it can drive the sliding seat 26 to move in the opposite or relative directions along its axial direction.

[0034] A hinge seat 27 is symmetrically provided at the top of the sliding seat 26, providing a hinge fulcrum for the connecting rod 28. A connecting rod 28 is provided above the hinge seat 27. The connecting rod 28 is adapted to the sliding groove of the outer shell 21. The sliding groove of the outer shell 21 guides the movement of the connecting rod 28. A hinge seat 29 is provided at the other end of the connecting rod 28. A limiting plate 210 is provided at the other end of the hinge seat 29. When the sliding seat 26 moves, the limiting plate 210 is moved by the connecting rod 28, so that the limiting plate 210 contacts the inner wall of the pipe, thereby limiting the device.

[0035] Especially when the probe 112 detects a problem in the inner wall of the pipe, the drive motor 23 of the limit component 2 will start immediately. The torque at the output end of the drive motor 23 is directly transmitted to the bidirectional threaded rod 24, causing the bidirectional threaded rod 24 to rotate around its axis. The other end of the bidirectional threaded rod 24 is connected to the fixing plates 22 at both ends of the outer casing 21 through the bearing 25 to maintain a stable rotational connection.

[0036] As the bidirectional threaded rod 24 rotates, the sliding seat 26, which is symmetrically arranged at its outer end, will move closer to the threaded rod along the axial direction due to its threaded connection with the bidirectional threaded rod 24. The hinge seat 27 at the top of the sliding seat 26 simultaneously drives the connecting rod 28 to move. The connecting rod 28 slides smoothly along the groove preset at the top of the outer shell 21. Its other end pushes the limiting plate 210 towards the inner wall of the pipe through the hinge seat 29 until the rubber wear-resistant pad at the outer end of the limiting plate 210 is tightly attached to the inner wall of the pipe. Through this series of linkage actions, the device is stably fixed in the problem area inside the pipe, providing a solid support for the probe 112 to perform high-precision detailed detection of the defect location.

[0037] The limiting plate 210 of the limiting component 2 is provided with a wear-resistant pad at its outer end. The wear-resistant pad is made of rubber and has anti-slip texture on its surface. The rubber wear-resistant pad can reduce the wear between the limiting plate 210 and the inner wall of the pipe and extend the service life of the limiting plate 210. The anti-slip texture can increase the friction between the limiting plate 210 and the inner wall of the pipe and further improve the limiting stability when the device is fixed.

[0038] A reinforcing rib is provided between the fixed base 11 and the mounting plate 13. The reinforcing ribs are symmetrically distributed on both sides of the guide rod 12. One end of the reinforcing rib is welded to the fixed base 11 and the other end is welded to the mounting plate 13. The reinforcing rib is made of stainless steel. The stainless steel reinforcing rib connects the fixed base 11 and the mounting plate 13 by welding, which can enhance the connection strength between the two and prevent the mounting plate 13 from shaking or deforming during the testing process, especially when the device is fixed for detailed testing.

[0039] In practical use, after the device enters the hot water pipe, the rotating probe assembly first adapts to the inner diameter of the pipe through its own structure. The guide rod 12 on the fixed seat 11 provides a sliding track for the sliding seat 14. When the spring 110 is in a naturally extended state, it will push the sliding seat 14 to move away from the fixed seat 11 along the guide rod 12. When the sliding seat 14 moves, the hinge seat 19 at its outer end drives the support rod 18 to move synchronously. The support rod 18 is connected to the hinge in the middle of the connecting rod 16, which pushes the connecting rod 16 to rotate around the hinge seat 15 at the outer end of the fixed seat 11. The bracket 17 at the other end of the connecting rod 16 unfolds accordingly, so that the roller at the end of the bracket 17 contacts the inner wall of the pipe. The elastic force of the spring 110 keeps the roller always in contact with the inner wall, realizing the stable support of the device in pipes of different diameters.

[0040] During the inspection, the lighting lamp 111 on the mounting plate 13 is turned on to illuminate the inner wall of the pipe. The probe 112 on one side of the mounting plate 13 is started simultaneously to acquire images of the inner wall condition. When the probe 112 detects an abnormality in the inner wall of the pipe, the limiting component starts to work. The drive motor 23 inside the housing 21 starts and drives the bidirectional threaded rod 24 at the output end to rotate. The other end of the bidirectional threaded rod 24 is connected to the fixed plate 22 through the bearing 25 to ensure rotational stability. When the bidirectional threaded rod 24 rotates, the sliding seat 26 at its outer end moves relative to the threaded connection. The hinge seat 27 at the top of the sliding seat 26 drives the connecting rod 28 to move along the sliding groove at the top of the housing 21. The hinge seat 29 at the other end of the connecting rod 28 pushes the limiting plate 210 closer to the inner wall of the pipe until the wear-resistant pad at the outer end of the limiting plate 210 is in close contact with the inner wall, fixing the device in the abnormal position inside the pipe so that the probe 112 can perform accurate detection.

[0041] After the test is completed, the drive motor 23 rotates in reverse, the bidirectional threaded rod 24 drives the sliding seat 26 to reset, and the limit plate 210 disengages from the inner wall of the pipe. At the same time, if the position of the device needs to be adjusted, when the device is pushed, the roller rolls along the inner wall of the pipe, and the spring 110 adapts to the change of the inner diameter of the pipe. The position of the roller is adjusted by the linkage of the sliding seat 14, the support rod 18 and the connecting rod 16 to ensure that the device moves smoothly to the next test area.

[0042] It should be noted that all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device that can be controlled by a computer or other means. The detailed description of known functions and known components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotating probe device for warm water pipe inner wall detection, characterized by, include: Detect the rotating probe assembly (1) and the limiting assembly (2); The detection rotating probe assembly (1) is symmetrically arranged at both ends of the limiting assembly (2). The detection rotating probe assembly (1) includes a fixed base (11). One end of the fixed base (11) is provided with a guide rod (12). The other end of the guide rod (12) is provided with a mounting plate (13). The other end of the mounting plate (13) is provided with a lighting lamp (111). The side of the mounting plate (13) near the lighting lamp (111) is provided with a probe (112).

2. A rotating probe device for hot water pipe inner wall inspection according to claim 1, characterized in that: The detection rotating probe assembly (1) also includes a sliding seat (14), which is located at the outer end of the guide rod (12). A spring (110) is provided at one end of the guide rod (12) near the sliding seat (14). One end of the spring (110) is fixedly connected to one end of the sliding seat (14), and the other end of the spring (110) is fixedly connected to one end of the fixed seat (11).

3. A rotating probe device for hot water pipe wall inspection according to claim 2, characterized in that: The detection rotating probe assembly (1) also includes a hinge seat one (15), which is symmetrically arranged on the outer end of the fixed seat (11). A connecting rod (16) is provided above the hinge seat one (15), and a bracket (17) is provided at the other end of the connecting rod (16). A roller is provided at the other end of the bracket (17). A hinge seat two (19) is symmetrically arranged on the outer end of the sliding seat one (14). A support rod (18) is provided above the hinge seat two (19), and the other end of the support rod (18) is hinged to the middle of the connecting rod (16) through a hinge.

4. A rotating probe device for inspecting the interior of a water heating pipe according to claim 3, characterized in that: The limiting component (2) includes an outer shell (21), with fixed plates (22) symmetrically arranged at both ends of the outer shell (21), and sliding grooves symmetrically opened at the top of the outer shell (21). A drive motor (23) is provided inside the outer shell (21), and a bidirectional threaded rod (24) is provided at the output end of the drive motor (23). A bearing (25) is provided at the other end of the bidirectional threaded rod (24), and the other end of the bearing (25) is rotatably connected to one end of the fixed plate (22).

5. A rotating probe device for hot water pipe wall inspection according to claim 4, characterized in that: The limiting component (2) also includes a sliding seat two (26), which is symmetrically arranged at the outer end of the bidirectional threaded rod (24). The sliding seat two (26) is threadedly connected to the bidirectional threaded rod (24). The top of the sliding seat two (26) is symmetrically provided with a hinge seat three (27). A connecting rod (28) is provided above the hinge seat three (27). The connecting rod (28) is adapted to the sliding groove of the outer shell (21). The other end of the connecting rod (28) is provided with a hinge seat four (29). The other end of the hinge seat four (29) is provided with a limiting plate (210).

6. A rotating probe device for hot water pipe wall inspection according to claim 5, characterized in that: The limit plate (210) of the limit component (2) is provided with a wear-resistant pad at the outer end. The wear-resistant pad is made of rubber and has anti-slip texture on its surface.

7. A rotating probe device for detecting the inner wall of a heating water pipe according to claim 6, characterized in that: A reinforcing rib is provided between the fixed seat (11) and the mounting plate (13). The reinforcing ribs are symmetrically distributed on both sides of the guide rod (12). One end of the reinforcing rib is welded and fixed to the fixed seat (11), and the other end of the reinforcing rib is welded and fixed to the mounting plate (13). The reinforcing rib is made of stainless steel.