Self-powered variable-diameter urban water delivery pipeline detector

By designing a self-energy and variable diameter detector structure, the shortcomings of existing pipeline detector power supply and underwater operations are solved, efficient detection under different pipe diameters and water flow conditions are achieved, and power generation is achieved through the water flow energy in the pipeline, extending the service life.

CN222925339UActive Publication Date: 2025-05-30XIAN UNIV OF TECH
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Patent Information

Application Number
CN202421892635.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-07
Publication Date
2025-05-30
Estimated Expiration
2034-08-07

AI Technical Summary

Technical Problem

There are shortcomings in existing pipeline detection machines in terms of power supply and underwater operations, including the limitation of the detection range of power supply methods and the problem of overturning when facing pipeline diameter or water flow impact.

Method used

A self-energy variable diameter urban water transmission pipeline detection machine is designed, and a self-energy structure composed of a DC generator and an impeller is used. It combines a variable diameter support structure of servo motor, large bevel gear and multi-stage screw nut pair to achieve adaptive detection of different pipe diameters and generate electricity through the water flow energy in the pipeline.

Benefits of technology

The detector can extend its service life without carrying a large number of batteries, and adapt to multiple pipe diameters through a variable diameter support structure, improving the reliability and adaptability of detection, and at the same time realizing the steering function in the pipe.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a self-energized variable-diameter urban water pipeline detector, which comprises a self-energized structure, two groups of variable-diameter supporting structures, a driving structure and a detection structure, the self-energized structure is connected with one end of one diameter-variable supporting structure, the other end of one diameter-variable supporting structure is connected with one end of the driving structure, the other end of the driving structure is connected with one end of the other diameter-variable supporting structure, and the other end of the other diameter-variable supporting structure is connected with one end of the detection structure. The self-energy-supply structure comprises a direct-current generator and an impeller connected with an output shaft of the direct-current generator; the variable-diameter supporting structure comprises a servo motor and a bevel gear wheel, the bevel gear wheel is in meshed connection with a bevel pinion, the bevel pinion is connected with one end of a multi-stage lead screw nut pair, and the other end of the multi-stage lead screw nut pair is connected with a supporting foot, so that the servo motor drives the supporting foot to stretch out to make contact with the interior of the pipeline, water flow in the pipeline scours an impeller and drives the impeller to rotate; the direct-current generator is driven to realize conversion from mechanical energy to electric energy; and the detection structure detects the interior of the pipeline.
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Description

Technical Field

[0001] The utility model relates to the technical field of inspection machines, and specifically relates to a self-powered variable-diameter inspection machine for urban water pipelines. Background Art

[0002] Due to advantages such as large transportation volume and strong continuity, pipeline transportation plays an important role in the urban water supply system. However, as the service life of pipelines increases, problems such as cracks and leakage holes may occur in pipeline materials due to natural aging or external environmental impacts, resulting in water supply leakage and a decline in transmission efficiency. Moreover, since most water supply pipelines are buried underground, it is relatively difficult to use manual inspection and maintenance methods. Although there are various pipeline inspection machines on the market currently, they all have certain deficiencies:

[0003] (1) The power supply problem of the pipeline inspection machine: Wired power supply not only increases the self-load of the inspection machine, and the load increases linearly with the increase of distance, but also limits the maximum travel range of the inspection machine; Battery power supply has limited battery power and the detection distance is limited.

[0004] (2) The underwater operation problem of the pipeline inspection machine: Wheel-type and crawler-type inspection machines are prone to capsizing when facing pipeline diameter changes or water flow impacts, and cannot meet the detection requirements under dynamic water flow. Content of the Utility Model

[0005] To solve the problems in the background art, the utility model provides a self-powered variable-diameter inspection machine for urban water pipelines, which can actively change the diameter and support for pipelines with different diameters for inspection.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A self-powered variable-diameter inspection machine for urban water pipelines includes a self-powered structure, two groups of variable-diameter support structures, a driving structure, and a detection structure; One end of the self-powered structure is connected to one group of variable-diameter support structures, the other end of the one group of variable-diameter support structures is connected to one end of the driving structure, the other end of the driving structure is connected to one end of the other group of variable-diameter support structures, and the other end of the other group of variable-diameter support structures is connected to one end of the detection structure;

[0007] The self-powered structure includes a DC generator and an impeller connected to the output shaft of the DC generator;

[0008] The variable-diameter support structure includes a servo motor and a large bevel gear. The servo motor is connected to the large bevel gear, the large bevel gear is meshed and connected with a small bevel gear, one end of the small bevel gear is connected to a multi-stage lead screw nut pair, and the other end of the multi-stage lead screw nut pair is connected to a support foot, realizing that the servo motor drives the support foot to extend and contact the inside of the pipeline, pressing the pipeline inspection machine tightly against the pipeline. The scouring of the water flow in the pipeline on the impeller drives the impeller to rotate, driving the DC generator to realize the conversion of mechanical energy into electrical energy;

[0009] The detection structure includes a detection structure housing, a floodlight, and a camera; the detection structure housing is fixedly connected to a detection device composed of a camera and a floodlight to detect the interior of the pipeline.

[0010] Preferably, the self - power supply structure further includes: a self - power supply structure housing, the DC generator is fixedly connected to the self - power supply structure housing, and the self - power supply structure housing is fixedly connected to the driving structure housing in the variable - diameter support structure.

[0011] Preferably, the variable - diameter support structure further includes a variable - diameter support structure housing; the servo motor is fixedly connected to the variable - diameter support structure housing, and the variable - diameter support structure housing is fixedly connected to the driving structure housing;

[0012] Preferably, the variable - diameter support structure further includes an electromagnet, and the support foot is fixedly connected to the electromagnet.

[0013] Preferably, the driving structure includes: an electric push rod, a universal ball joint, and a universal ball connecting piece. The two ends of the electric push rod are respectively fixedly connected to the universal ball joint, the universal ball joint is rotatably connected to the universal ball connecting piece, and the two universal ball connecting pieces are respectively fixedly connected to the driving structure end covers on the sides of the two groups of driving structure housings.

[0014] Preferably, the detection structure further includes a stepping motor, a gear, and a gear ring. The stepping motor is installed inside the detection structure housing, the output shaft of the stepping motor is connected to the gear, the gear is meshed with the gear ring rotatably connected inside the detection structure housing, and the outside of the gear ring is fixedly connected to the inside of the driving structure housing of the other group of variable - diameter support structures.

[0015] The beneficial effects of the present utility model:

[0016] (1) The variable - diameter support structure of this pipeline detector can meet the working environments of various pipe diameters, has high adaptability, and effectively improves the reliability of the detection task.

[0017] (2) This pipeline detector has a steering function to realize steering inside the pipeline.

[0018] (3) This pipeline detector can generate electricity by using the kinetic energy of the fluid inside the pipeline, increasing the working range, and can reduce the load of the machine body without carrying a large number of storage batteries, and prolong the service life of the detector. Description of the Drawings

[0019] Figure 1 It is the overall structure diagram of a self - power supply variable - diameter urban water supply pipeline detector of the present utility model;

[0020] Figure 2It is the overall structure diagram of the self - power supply structure of a self - power - supply variable - diameter urban water pipeline detector of the present utility model;

[0021] Figure 3 It is the connection diagram of the self - power supply structure and the variable - diameter support structure of a self - power - supply variable - diameter urban water pipeline detector of the present utility model;

[0022] Figure 4 It is the connection diagram of the variable - diameter support structure and the drive structure of a self - power - supply variable - diameter urban water pipeline detector of the present utility model;

[0023] Figure 5 It is a partial structure of the variable - diameter support structure of a self - power - supply variable - diameter urban water pipeline detector of the present utility model Figure 1 ;

[0024] Figure 6 It is a partial structure of the variable - diameter support structure of a self - power - supply variable - diameter urban water pipeline detector of the present utility model Figure 2 ;

[0025] Figure 7 It is the structure diagram of the drive structure of a self - power - supply variable - diameter urban water pipeline detector of the present utility model;

[0026] Figure 8 It is the connection structure diagram of the variable - diameter support structure and the detection structure of a self - power - supply variable - diameter urban water pipeline detector of the present utility model;

[0027] Figure 9 It is the structure diagram of the detection structure of a self - power - supply variable - diameter urban water pipeline detector of the present utility model;

[0028] Figure 10 It is the motion state diagram of a self - power - supply variable - diameter urban water pipeline detector of the present utility model.

[0029] In the figure, there are self - power supply structure 1, variable - diameter support structure 2, drive structure 3, detection structure 4, impeller 102, DC generator 104, self - power supply structure housing 105, drive structure housing 201, multi - stage lead screw nut pair 202, electromagnet 203, support foot 204, drive structure end cover 205, variable - diameter support structure housing 207, small bevel gear 210, large bevel gear 214, servo motor 217, electric push rod 301, universal ball joint 302, universal ball connecting piece 303, detection structure housing 401, floodlight 402, camera 403, stepper motor 405, gear 406, and gear ring 407. Specific embodiments

[0030] The specific embodiments of the present utility model will now be described comprehensively with reference to the accompanying drawings. For the sake of clarity, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these physical details are unnecessary. In addition, for the sake of simplifying the drawings, some conventional structures and components will be illustrated in a simple schematic manner in the drawings.

[0031] As Figure 1-10 shown, a self-powered variable-diameter urban water pipeline detector of the present utility model includes a self-powered structure 1, two groups of variable-diameter support structures 2, a driving structure 3, and a detection structure 4; one end of the self-powered structure 1 is connected to one end of a group of variable-diameter support structures 2, the other end of the group of variable-diameter support structures 2 is connected to one end of the driving structure 3, the other end of the driving structure 3 is connected to one end of the other group of variable-diameter support structures 2, and the other end of the other group of variable-diameter support structures 2 is connected to one end of the detection structure 4;

[0032] The self-powered structure 1 includes a DC generator 104 and an impeller 102 connected to the output shaft of the DC generator 104;

[0033] The variable-diameter support structure 2 includes a servo motor 217 and a large bevel gear 214. The servo motor 217 is connected to the large bevel gear 214, the large bevel gear 214 is meshed and connected with a small bevel gear 210, one end of the small bevel gear 210 is connected to one end of a multi-stage lead screw nut pair 202, and the other end of the multi-stage lead screw nut pair 202 is connected to a support foot 204, realizing that the servo motor 217 drives the support foot 204 to extend and contact the inside of the pipeline, pressing the pipeline detector tightly against the pipeline. The scouring of the water flow in the pipeline on the impeller 102 drives the impeller 102 to rotate, driving the DC generator 104 to realize the conversion of mechanical energy into electrical energy;

[0034] The detection structure 4 includes a detection structure housing 401, a floodlight 402, and a camera 403; the detection structure housing 401 is fixedly connected to a detection device composed of the camera 403 and the floodlight 402 to detect the inside of the pipeline.

[0035] Furthermore, the self-powered structure 1 further includes: a self-powered structure housing 105. The DC generator 104 is fixedly connected to the self-powered structure housing 105, and the self-powered structure housing 105 is fixedly connected to the driving structure housing 201 in the variable-diameter support structure.

[0036] Furthermore, the variable-diameter support structure 2 further includes a variable-diameter support structure housing 207; the servo motor 217 is fixedly connected to the variable-diameter support structure housing 207, and the variable-diameter support structure housing 207 is fixedly connected to the driving structure housing 201;

[0037] Further, the variable-diameter support structure 2 further includes an electromagnet 203, and the support foot 204 is fixedly connected to the electromagnet 203.

[0038] Further, the driving structure 3 includes: an electric push rod 301, a universal ball joint 302, and a universal ball connecting member 303. The two ends of the electric push rod 301 are respectively fixedly connected to the universal ball joint 302. The universal ball joint 302 is rotatably connected to the universal ball connecting member 303. The two universal ball connecting members 303 are respectively fixedly connected to the driving structure end covers 205 on the sides of the two groups of driving structure housings 201. There are three electric push rods 301.

[0039] Further, the detection structure 4 further includes a stepping motor 405, a gear 406, and a gear ring 407. The stepping motor 405 is installed in the detection structure housing 401. The output shaft of the stepping motor 405 is connected to the gear 406. The gear 406 is meshed with the gear ring 407 rotatably connected in the detection structure housing 401. The outside of the gear ring 407 is fixedly connected to the inside of the driving structure housing 201 of the other group of variable-diameter support structures 2.

[0040] Further, the detection structure housing 401 is fixedly connected to three groups of detection devices composed of cameras 403 and floodlights 402. The detection devices are circumferentially distributed at 120° to each other on the circumference of the detection structure housing 401.

[0041] Embodiment:

[0042] When traveling straight, the variable-diameter support structure 2 at the front end is the variable-diameter support structure 2 close to the detection structure 4. In the initial state, the support feet 204 in the variable-diameter support structures 2 at the front and rear ends both extend, and the support feet 204 are closely attached to the inner wall of the pipe to fix the pipeline detector. The second state is that the support feet 204 of the variable-diameter support structure 2 at the front end retract. The third state is that the push rod of the electric push rod 301 in the driving module 3 extends, pushing the front end of the pipeline detector forward. After the electric push rod 301 completes its movement, the support feet 204 of the variable-diameter support structure 2 at the front end extend, fixing the pipeline detector again. The fourth state is that the support feet 204 of the variable-diameter support structure 2 at the rear end retract. The fifth state is that the push rod of the electric push rod 301 in the driving module 3 contracts, driving the rear end of the pipeline detector forward. After the electric push rod 301 completes its movement, the support feet 204 of the variable-diameter support structure 2 at the rear end extend, fixing the pipeline detector, and completing a cycle of forward movement.

[0043] When making a turning movement, taking the left turn of the pipeline detector as an example, the push rods of the two electric push rods 301 in the driving structure 3 extend, and the remaining electric push rod 301 freely contracts, pushing the variable-diameter support structure 2 and the driving structure end cover 205 to turn left. Subsequently, the two extended electric push rods 301 contract, and the remaining electric push rod 301 freely extends to complete the attitude adjustment of the pipeline detector.

[0044] When detecting the inner wall of the pipeline, the stepping motor 405 can drive the gear 406 to rotate. Through the meshing with the gear ring 407 fixedly connected to the driving structure housing 201, the detection structure housing 401 is driven to rotate, realizing the dead-angle-free acquisition by the camera 403.

[0045] The above are only specific embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A self-powered variable diameter urban water pipeline inspection machine, characterized in that: The invention comprises a self-powered structure (1), two groups of variable diameter support structures (2), a driving structure (3) and a detection structure (4); the self-powered structure (1) is connected to one end of the first group of variable diameter support structures (2), the other end of the first group of variable diameter support structures (2) is connected to one end of the driving structure (3), the other end of the driving structure (3) is connected to one end of the other group of variable diameter support structures (2), and the other end of the other group of variable diameter support structures (2) is connected to one end of the detection structure (4); The self-powered structure (1) comprises a DC generator (104) and an impeller (102) connected to an output shaft of the DC generator (104); The variable diameter support structure (2) comprises a servo motor (217) and a large bevel gear (214); the servo motor (217) is connected to the large bevel gear (214); the large bevel gear (214) is meshedly connected to the small bevel gear (210); the small bevel gear (210) is connected to one end of a multi-stage lead screw nut pair (202); the other end of the multi-stage lead screw nut pair (202) is connected to a support foot (204); the servo motor (217) drives the support foot (204) to extend and contact the inside of the pipeline, so that the pipeline detection machine is closely attached to the pipeline; the water flow in the pipeline flushes the impeller (102), drives the impeller (102) to rotate, and drives the DC generator (104) to realize the conversion of mechanical energy into electrical energy; The detection structure (4) comprises a detection structure housing (401), a floodlight (402), and a camera (403); the detection structure housing (401) is fixedly connected to a detection device consisting of the camera (403) and the floodlight (402) to detect the inside of the pipeline.

2. A self-powered variable diameter urban water pipeline inspection machine according to claim 1, characterized in that: The self-powered structure (1) further comprises: a self-powered structure housing (105), the DC generator (104) being fixedly connected to the self-powered structure housing (105), and the self-powered structure housing (105) being fixedly connected to the drive structure housing (201) in the variable diameter support structure.

3. A self-powered variable diameter urban water pipeline inspection machine according to claim 1, characterized in that: The variable diameter support structure (2) further comprises a variable diameter support structure housing (207); the servo motor (217) is fixedly connected to the variable diameter support structure housing (207); and the variable diameter support structure housing (207) is fixedly connected to the drive structure housing (201).

4. A self-powered variable diameter urban water pipeline inspection machine according to claim 3, characterized in that: The variable diameter support structure (2) further comprises an electromagnet (203), and the support foot (204) is fixedly connected to the electromagnet (203).

5. A self-powered variable diameter urban water pipeline inspection machine according to claim 1, characterized in that: The driving structure (3) comprises: an electric push rod (301), a universal ball joint (302), and a universal ball connector (303); both ends of the electric push rod (301) are respectively fixedly connected to the universal ball joint (302); the universal ball joint (302) is rotationally connected to the universal ball connector (303); and the two universal ball connectors (303) are respectively fixedly connected to the driving structure end covers (205) on the sides of two sets of driving structure housings (201).

6. A self-powered variable diameter urban water pipeline inspection machine according to claim 1, characterized in that: The detection structure (4) further comprises a stepper motor (405), a gear (406) and a gear ring (407); the stepper motor (405) is installed in the detection structure housing (401); the output shaft of the stepper motor (405) is connected to the gear (406); the gear (406) is meshedly connected to the gear ring (407) rotatably connected in the detection structure housing (401); the outside of the gear ring (407) is fixedly connected to the inside of the drive structure housing (201) of the other set of variable diameter support structures (2).

7. A self-powered variable diameter urban water pipeline inspection machine according to claim 1, characterized in that: The detection structure housing (401) is fixedly connected to three groups of detection equipment consisting of cameras (403) and floodlights (402), and the detection equipment are distributed around the circumference of the detection structure housing (401) at 120°.