Online detection device for cable protection pipe production

By designing an online inspection device that combines laser ranging and ultrasonic sensors with a PLC control system, the problems of low inspection efficiency and reliance on manual labor in the production of cable protection pipes have been solved, achieving real-time and accurate inspection results.

CN224499417UActive Publication Date: 2026-07-14JIANGSU WORRUN ELECTRIC POWER EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU WORRUN ELECTRIC POWER EQUIPMENT CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional cable protection pipe production and testing are inefficient and prone to missed detections. Existing equipment cannot provide real-time feedback or reduce reliance on manual labor.

Method used

An online inspection device for cable protection pipe production was designed. It uses a laser rangefinder and an ultrasonic thickness sensor to measure the outer diameter and wall thickness in real time. Combined with a PLC control system, the device calculates the deviation value and provides audible and visual alarms to indicate non-compliance. It is equipped with a motor-driven support device and fixing components to ensure the stability of the inspection.

Benefits of technology

This technology enables real-time online detection of cable protection pipes, improving detection efficiency, reducing manual intervention, and ensuring the accuracy and reliability of the detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of online detection devices for cable protection pipe production, including base and cable protection pipe, the base upper end is equipped with cable protection pipe support device, the both ends of the cable protection pipe support device are bolted with cable protection pipe detection component, and the cable protection pipe support device upper end middle part is equipped with cable protection pipe fixing component.The utility model is equipped with laser ranging sensor by symmetry on the upper side of cable protection pipe, by emitting laser and receiving opposite side reflection signal, real-time measurement outer diameter, the ultrasonic thickness sensor is emitted from probe with ultrasonic wave, after passing through pipe wall, it is reflected in inner wall, and returns probe, detects the uniformity of pipe wall thickness, the data processing unit of setting adopts PLC control structure, receives sensor signal and calculates deviation value, when exceeding threshold value, the alarm unit of setting triggers sound-light alarm, prompt that the pipe material is unqualified.
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Description

Technical Field

[0001] This utility model relates to the field of cable protection pipe technology, specifically to an online testing device for cable protection pipe production. Background Technology

[0002] Cable protection pipe inspection is a comprehensive inspection of the quality, performance and safety of the pipes used to protect cables. Traditional cable protection pipes require manual sampling inspection after production, which is inefficient and prone to missed inspections.

[0003] The prior art, disclosed in patent document CN217032301U, presents the following technical solution: a testing device for online production of PE water supply pipes. The testing device includes a base plate, a right support sleeve, a gauge clamp tube, a gauge, and a left support sleeve. The gauge clamp tube has an L-shaped groove, and the gauge is provided with a locking pin. The gauge is installed inside the gauge clamp tube and is axially limited by the locking pin that slides into the L-shaped groove. The right support sleeve and the left support sleeve are respectively disposed on both sides of the gauge clamp tube. The right support sleeve, the left support sleeve, and the gauge clamp tube are respectively welded to a support frame, which is welded to the base plate.

[0004] The testing equipment in the above-mentioned technical solutions relies on manual testing with gauges, which cannot provide real-time feedback on the testing of cable protection pipes. To address this, an online testing device for cable protection pipe production is proposed to solve the problems of testing lag and strong reliance on manual labor. Utility Model Content

[0005] The purpose of this invention is to provide an online testing device for the production of cable protection pipes, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an online testing device for cable protection pipe production, comprising a base and a cable protection pipe, wherein a cable protection pipe support device is installed on the upper end of the base, cable protection pipe testing components are bolted to both ends of the cable protection pipe support device, and a cable protection pipe fixing component is installed in the middle of the upper end of the cable protection pipe support device.

[0007] The cable protection pipe support device includes a fixed frame, which is bolted to both ends of the base. An mounting frame is fixedly connected to the upper end of each fixed frame. A transmission box is provided between the two mounting frames. A bevel gear set is installed inside the transmission box. Each end of the bevel gear set has a threaded rod. A sleeve rod is threaded to the outer wall of each threaded rod. Limiting plates are fixedly connected to both the upper and lower ends of the sleeve rod. Limiting grooves are formed on the upper and lower inner walls of the mounting frame. The limiting plates are slidably connected to the limiting grooves. A support plate is fixedly connected to one end of each sleeve rod.

[0008] In the above technical solution, the distance between the support plates at both ends can be adjusted according to the length of the cable protection pipe after processing and cutting, thereby enabling the cable protection pipe to be supported.

[0009] The cable protection pipe detection assembly includes a vertical plate, which is bolted to the outer side of a support plate. A threaded rod is provided on the inner side of the vertical plate via a bearing. A connecting plate is threaded to the outer wall of the threaded rod. An arc-shaped mounting plate is bolted to the outer side of each connecting plate. A laser ranging sensor is provided on the top side of each arc-shaped mounting plate. A screw is threaded to the side wall of each arc-shaped mounting plate. An ultrasonic thickness sensor is movably connected to one end of the inner side of each screw. The laser ranging sensor is located at the upper end of the cable protection pipe, and the ultrasonic thickness sensor is located on the outer side wall of the cable protection pipe.

[0010] In the above technical solution, the outer diameter is measured in real time by emitting a laser and receiving the reflected signal from the opposite side. The ultrasonic thickness sensor emits ultrasonic waves from the probe, which are reflected on the inner wall after passing through the pipe wall and return to the probe to detect the uniformity of the pipe wall thickness. The data processing unit adopts a PLC control structure to receive the sensor signal and calculate the deviation value. When the deviation exceeds the threshold, the alarm unit triggers an audible and visual alarm to indicate that the pipe is unqualified.

[0011] As a further preferred embodiment of this technical solution, a data processing unit and an alarm unit are installed on the base, and both the data processing unit and the alarm unit are connected to the laser rangefinder and the ultrasonic thickness sensor.

[0012] As a further preferred embodiment of this technical solution, a motor is installed at the bottom of the bevel gear set, the motor is located in the middle of the base, and is connected to an external control system.

[0013] As a further preferred embodiment of this technical solution, each of the two threaded rods is equipped with a drive mechanism at its upper end and is connected to an external control system.

[0014] As a further preferred embodiment of this technical solution, the two laser rangefinders are symmetrically arranged on the left and right sides, which emit lasers and receive reflected signals from the other side.

[0015] As a further preferred embodiment of this technical solution, the cable protection pipe fixing assembly includes a support, and two screw rods are threadedly connected to the side walls of both sides of the support. Each of the two screw rods is movably connected to a clamping plate on one side facing each other.

[0016] In the above technical solution, the installed cable protection pipe fixing assembly can fix the cable protection pipe and achieve positioning, so as to avoid it falling off during the testing process and affecting the testing effect.

[0017] As a further preferred embodiment of this technical solution, the cable protection pipe is supported on a support in the middle, and its two ends are respectively mounted on a support plate.

[0018] This utility model provides an online testing device for the production of cable protection pipes, which has the following advantages:

[0019] (1) By installing a cable protection pipe support device, this utility model can adjust the distance between the two end support plates according to the length of the cable protection pipe after processing and cutting, thereby supporting the cable protection pipe. The installed cable protection pipe fixing component can fix the cable protection pipe and achieve positioning, so as to avoid it falling during the testing process and affecting the testing effect.

[0020] (2) This utility model uses a cable protection pipe detection component. The threaded rod can move the laser ranging sensor to the top of the cable protection pipe and the ultrasonic thickness sensor to the outer side wall of the cable protection pipe. The laser ranging sensor, which is symmetrically arranged above the cable protection pipe, emits laser and receives the reflected signal from the opposite side to measure the outer diameter in real time. The ultrasonic thickness sensor emits ultrasonic waves from the probe, which are reflected on the inner wall after passing through the pipe wall and return to the probe to detect the uniformity of the pipe wall thickness. The data processing unit adopts a PLC control structure to receive the sensor signal and calculate the deviation value. When the deviation exceeds the threshold, the alarm unit triggers an audible and visual alarm to indicate that the pipe is unqualified. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the cable protection pipe fixing assembly of this utility model;

[0023] Figure 3 This is a partial cross-sectional view of the present invention;

[0024] Figure 4 This is an enlarged view of Figure A of this utility model;

[0025] In the diagram: 1. Base; 2. Data processing unit; 3. Alarm unit; 4. Cable protection pipe support device; 41. Fixing frame; 42. Mounting frame; 43. Transmission box; 431. Bevel gear set; 432. Motor; 433. Threaded rod one; 434. Sleeve rod; 435. Limiting plate; 436. Limiting groove; 44. Support plate; 5. Cable protection pipe detection assembly; 51. Vertical plate; 52. Threaded rod two; 53. Connecting plate; 54. Arc-shaped mounting plate; 55. Laser rangefinder sensor; 56. Screw one; 57. Ultrasonic thickness sensor; 6. Cable protection pipe fixing assembly; 61. Support; 62. Screw two; 63. Clamping plate; 7. Cable protection pipe. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown in this embodiment, an online testing device for cable protection pipe production includes a base 1 and a cable protection pipe 7. A data processing unit 2 and an alarm unit 3 are installed on the base 1. Both the data processing unit 2 and the alarm unit 3 are connected to a laser rangefinder sensor 55 and an ultrasonic thickness sensor 57. The data processing unit 2 adopts a PLC control structure, receives sensor signals and calculates deviation values. When the deviation exceeds the threshold, the alarm unit 3 triggers an audible and visual alarm, indicating that the pipe is unqualified. A cable protection pipe support device 4 is installed on the upper end of the base 1. Cable protection pipe detection components 5 are bolted to both ends of the cable protection pipe support device 4. A cable protection pipe fixing component 6 is installed in the middle of the upper end of the cable protection pipe support device 4.

[0028] like Figure 2 and Figure 3 As shown, the cable protection pipe support device 4 includes a fixed frame 41, which is bolted to both ends of the base 1. Mounting frames 42 are fixedly connected to the upper ends of the fixed frames 41. A transmission box 43 is located between the two mounting frames 42. A bevel gear set 431 is installed inside the transmission box 43. A motor 432 is installed at the bottom of the bevel gear set 431. The motor 432 is located in the middle of the base 1 and connected to an external control system. Threaded rods 433 are provided at both ends of the bevel gear set 431. Sleeves 434 are threaded to the outer walls of the threaded rods 433. Limiting plates 435 are fixedly connected to both the upper and lower ends of the sleeves 434. Limiting grooves 436 are provided on the upper and lower inner walls of the mounting frames 42. The limiting plates 435 and the limiting grooves 436 are slidably connected. A support plate 44 is fixedly connected to one outer end of the sleeve 434. By installing the cable protection pipe support device 4, the distance between the two support plates 44 can be adjusted according to the length of the cable protection pipe 7 after processing and cutting, thereby supporting the cable protection pipe 7.

[0029] like Figure 3 and Figure 4As shown, the cable protection pipe detection assembly 5 includes a vertical plate 51, which is bolted to the outer side of the support plate 44. A threaded rod 52 is provided on the inner side of the vertical plate 51 via a bearing. A drive mechanism is installed at the upper end of each threaded rod 52 and connected to an external control system. A connecting plate 53 is threaded to the outer wall of each threaded rod 52. An arc-shaped mounting plate 54 is bolted to the outer side of each connecting plate 53. A laser ranging sensor 55 is provided on the top side of each arc-shaped mounting plate 54. Two laser ranging sensors 55 are symmetrically arranged on the left and right sides, emitting lasers and receiving reflected signals from the opposite side. A screw 56 is threaded to the side wall of each arc-shaped mounting plate 54. An ultrasonic thickness sensor is movably connected to one end of each screw 56 on its inner side. Sensor 57 and laser rangefinder 55 are installed on the upper end of cable protection pipe 7, and ultrasonic thickness sensor 57 is installed on the outer side wall of cable protection pipe 7. By installing cable protection pipe detection assembly 5, the threaded rod 52 can move laser rangefinder 55 to the top of cable protection pipe 7 and ultrasonic thickness sensor 57 to the outer side wall of cable protection pipe 7. The laser rangefinder 55, which is symmetrically arranged above cable protection pipe 7, emits laser and receives the reflected signal from the opposite side to measure the outer diameter in real time. The ultrasonic thickness sensor 57 emits ultrasonic waves from the probe, which are reflected on the inner wall after passing through the pipe wall and return to the probe to detect the uniformity of the pipe wall thickness.

[0030] like Figure 3 As shown, the cable protection pipe fixing assembly 6 includes a support 61. Both sides of the support 61 are threaded with screws 62. Each of the two screws 62 is movably connected to a clamping plate 63 on one side facing each other. The middle part of the cable protection pipe 7 is supported on the support 61, and both ends are respectively set on the support plate 44. The installed cable protection pipe fixing assembly 6 can fix the cable protection pipe 7, realize positioning, and prevent it from falling off during the inspection process and affecting the inspection effect.

[0031] This utility model provides an online testing device for cable protection pipe production. The specific working principle is as follows: The cable protection pipe 7 is placed on the support 61. The positions of the support plates 44 at both ends are adjusted according to the outer diameter of the cable protection pipe 7. Specifically, the motor 432 is started through an external control system, driving the bevel gear set 431 to rotate, which in turn drives the threaded rods 433 at both ends to rotate, causing the sleeves 434 on both sides to extend and retract until both ends of the cable protection pipe 7 are positioned on the support plates 44. Then, the screw 62 is rotated to fix the clamping plate 63 on the outer walls of both sides in the middle of the 7. The drive mechanism drives the 52 to rotate, causing the laser ranging sensor 55 to move above the cable protection pipe 7, and the ultrasonic thickness sensor 57 to move to the outer side wall of the cable protection pipe 7. The laser ranging sensor 55 monitors the outer diameter in real time, and an alarm is triggered when the data fluctuation is greater than ±0.5mm. The ultrasonic thickness sensor 57 samples the wall thickness every 10 seconds. The data processing unit 2 calculates the eccentricity in real time. If it exceeds the threshold, it is marked as unqualified, and the PLC control system controls the activation of the audible and visual alarm (model TDK-Lambad SAS-01).

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online testing device for cable protection pipe production, comprising a base (1) and a cable protection pipe (7), characterized in that: The upper end of the base (1) is equipped with a cable protection pipe support device (4), and both ends of the cable protection pipe support device (4) are bolted with cable protection pipe detection components (5). The middle part of the upper end of the cable protection pipe support device (4) is equipped with a cable protection pipe fixing component (6). The cable protection pipe support device (4) includes a fixed frame (41), which is bolted to both ends of the base (1). The upper end of the fixed frame (41) is fixedly connected to an installation frame (42). A transmission box (43) is provided between the two installation frames (42). A bevel gear set (431) is installed in the transmission box (43). Both ends of the bevel gear set (431) are provided with threaded rods (433). The outer wall of the threaded rods (433) is threaded with sleeves (434). The upper and lower ends of the sleeves (434) are fixedly connected to limit plates (435). The upper and lower inner walls of the installation frame (42) are provided with limit grooves (436). The limit plates (435) and the limit grooves (436) are slidably connected. One outer end of the sleeves (434) is fixedly connected to a support plate (44). The cable protection pipe detection assembly (5) includes a vertical plate (51), which is bolted to the outer side of the support plate (44). The inner side of the vertical plate (51) is provided with a threaded rod (52) through a bearing. The outer wall of the threaded rod (52) is threaded with a connecting plate (53). The outer side of the connecting plate (53) is bolted with an arc-shaped mounting plate (54). The top side of the arc-shaped mounting plate (54) is provided with a laser ranging sensor (55). The side wall of the arc-shaped mounting plate (54) is threaded with a screw (56). One end of the inner side of the screw (56) is movably connected with an ultrasonic thickness sensor (57). The laser ranging sensor (55) is set at the upper end of the cable protection pipe (7), and the ultrasonic thickness sensor (57) is set on the outer side wall of the cable protection pipe (7).

2. The online testing device for cable protection pipe production according to claim 1, characterized in that: A data processing unit (2) is installed on the base (1), and an alarm unit (3) is installed on the base (1). The data processing unit (2) and the alarm unit (3) are both connected to the laser rangefinder (55) and the ultrasonic thickness sensor (57).

3. The online testing device for cable protection pipe production according to claim 1, characterized in that: A motor (432) is installed at the bottom of the bevel gear set (431). The motor (432) is located in the middle of the base (1) and is connected to an external control system.

4. The online testing device for cable protection pipe production according to claim 1, characterized in that: Each of the threaded rods (52) has a drive mechanism installed at its upper end and is connected to an external control system.

5. The online testing device for cable protection pipe production according to claim 1, characterized in that: Two laser rangefinders (55) are symmetrically arranged on the left and right sides, which emit lasers and receive reflected signals from the opposite side.

6. The online testing device for cable protection pipe production according to claim 1, characterized in that: The cable protection pipe fixing assembly (6) includes a support (61), and two screw rods (62) are threadedly connected to the side walls of both sides of the support (61). The two screw rods (62) are movably connected to a clamping plate (63) on opposite sides.

7. The online testing device for cable protection pipe production according to claim 1, characterized in that: The cable protection pipe (7) is supported in the middle on the support (61), and its two ends are respectively set on the support plate (44).