一种地下管道检测用缺陷标记装置
By designing and coordinating components such as slide bars, sliders, driven rollers, and springs, flexible spray marking of defects around pipes is achieved, solving the marking limitations caused by fixed nozzle positions in existing technologies and improving detection efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING KENAVI ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-17
AI Technical Summary
The existing pipeline inspection device cannot flexibly adjust the nozzle position, which means that it can only spray markings on the bottom surface of the pipeline and cannot effectively mark other surfaces.
A marking device was designed, comprising a slide bar, a slider, a driven roller, a spring, a power roller, a nozzle, a paint box, a geared motor, a hose, a second motor, a water pump, a bracket, a slide rail, a mounting base, a rotating shaft, rollers, gears, a gear ring, and a fixing plate. Through the cooperation of the slide rail and the motor, the nozzle can be rotated and moved, enabling the marking of defects around the pipe.
It enables flexible spray marking of defects around the pipeline, improving detection efficiency and the comprehensiveness of marking.
Smart Images

Figure CN224509673U_ABST
Abstract
Claims
1. A defect marking device for underground pipeline inspection, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is provided with a marking device (2), which includes a power unit (21). The power unit (21) includes a slide rod (214) and a first rotating shaft (212). The inner wall of the mounting bracket (1) is provided with a sliding groove. The outer surface of the slide rod (214) is fixedly connected to the inside of the sliding groove. A slider (215) is slidably sleeved on the outer surface of the slide rod (214). The outer surface of the first rotating shaft (212) is rotatably connected to the outer surface of the slider (215) through a first bearing seat. The mounting bracket (1) has a marking part (22) on its inner side; The marking part (22) includes a nozzle (221) and a pigment box (225). A water pump (226) and a second motor (224) are fixedly connected to the top surface of the pigment box (225), and a mounting base (229) is fixedly connected to the outer surface of the nozzle (221).
2. The defect marking device for underground pipe inspection according to claim 1, characterized by: The power unit (21) also includes a driven roller (211), a spring (213), a power roller (216) and a first motor (217). The back of the first motor (217) is fixedly connected to the front of the mounting frame (1). The outer surface of the output shaft of the first motor (217) rotates through the front of the mounting frame (1) and extends to the inner side of the mounting frame (1) via a first bearing. The power roller (216) is fixedly sleeved on the outer surface of the output shaft of the first motor (217).
3. The defect marking device for underground pipe inspection according to claim 2, characterized by: The bottom end of the spring (213) is fixedly connected to the top surface of the slider (215), the top end of the spring (213) is fixedly connected to the inner wall of the mounting bracket (1), and the driven roller (211) is fixedly sleeved on the outer surface of the first rotating shaft (212).
4. The defect marking device for underground pipe inspection according to claim 1, characterized by: The marking section (22) also includes a geared motor (222), a hose (223), a second motor (224), a water pump (226), a bracket (227), a slide rail (228), a second rotating shaft (220), a roller (201), a gear (202), a gear ring (203), a fixing plate (204), and a hollow tube (205). The bottom surface of the slide rail (228) is fixedly connected to the top surface of the bracket (227), and the bottom surface of the bracket (227) is fixedly connected to the inner wall of the mounting frame (1). Both the outer surface and the inner wall of the slide rail (228) are provided with rings. The inner wall of the mounting base (229) extends into the annular groove and is slidably connected to the inner wall of the annular groove. The outer surface of the hose (223) is fixedly connected to the outer surface of the nozzle (221). The outer surface of the hose (223) is fixedly connected to the outer surface of the hollow tube (205). The outer surface of the output shaft of the second motor (224) is fixedly connected to the outer surface of the hollow tube (205). The fixing plate (204) is rotatably sleeved on the outer surface of the hollow tube (205) through the second bearing. The bottom surface of the fixing plate (204) is fixedly connected to the top surface of the pigment box (225).
5. The defect marking device for underground pipe inspection according to claim 4, characterized by: The outer surface of the second rotating shaft (220) is rotatably connected to the inner wall of the mounting base (229) through the second bearing seat, and the roller (201) is fixedly sleeved on the outer surface of the second rotating shaft (220).
6. The defect marking device for underground pipe inspection according to claim 4, wherein: The outer surface of the geared motor (222) is fixedly connected to the outer surface of the mounting base (229), the gear (202) is fixedly sleeved on the outer surface of the output shaft of the geared motor (222), and the gear ring (203) is fixedly sleeved on the outer surface of the slide rail (228).
7. The defect marking device for underground pipe inspection according to claim 4, characterized by: The feed pipe of the water pump (226) is fixedly inserted through the outer surface of the pigment box (225) and extends into the interior of the pigment box (225). The discharge pipe of the water pump (226) is rotated through the outer surface of the hollow tube (205) via a sealed bearing and extends into the interior of the hollow tube (205).