A rapid detection device for the mouth of a steel cylinder

By designing a rapid inspection device for steel cylinder mouths, a vision camera driven by a hydraulic rod is used for all-round inspection. Combined with image processor and PLC controller analysis, the problems of low inspection efficiency and insufficient accuracy in existing technologies are solved, and efficient and accurate identification and quality assessment of bottle mouth defects are achieved.

CN224581417UActive Publication Date: 2026-07-31HUBEI JINGYUAN XIHAI AUTOMOBILE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI JINGYUAN XIHAI AUTOMOBILE IND CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In existing technologies, the detection of defects at the mouth of steel cylinders suffers from low efficiency, insufficient accuracy, and blind spots. In particular, the recognition rate of minute cracks and hidden thread damage is insufficient, and it is difficult to establish a standardized quality evaluation system.

Method used

A rapid inspection device for the mouth of a steel cylinder was designed. It uses a hydraulic rod to drive a vision camera for all-round inspection, and combines an image processor and a PLC controller for data analysis to identify defects in the mouth of the cylinder and promptly alert staff through an alarm light.

Benefits of technology

It has achieved all-round high-precision inspection of the cylinder mouth, improved inspection efficiency and accuracy, reduced the risk of missed inspections, and established a standardized quality evaluation system.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a rapid inspection device for gas cylinder mouths, relating to the field of gas cylinder mouth inspection technology. The device includes a worktable. Addressing the problem of gas cylinder mouth inspection, this invention places the gas cylinder in the center of a clamping block, which then clamps and secures it. A top hydraulic rod is activated, moving several vision cameras at the bottom to a suitable position on the cylinder mouth. A rotating motor drives the vision cameras to slowly rotate, allowing for comprehensive inspection of the cylinder mouth surface. The detected data is transmitted to an image processor on one side. The image processor and PLC controller analyze and process the data to quickly identify defects in the cylinder mouth. If a defect is found, an alarm light is activated, promptly alerting staff to sort the cylinder. This eliminates the need for manual inspection and enables comprehensive inspection, improving accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of cylinder mouth detection technology, and in particular to a rapid cylinder mouth detection device. Background Technology

[0002] As a core piece of equipment for the storage and transportation of high-pressure fluids, the structural integrity of the cylinder neck directly determines the safety of its use. The cylinder neck must withstand the compressive stress of the sealing components, the pressure impact of the medium, and the mechanical wear caused by frequent loading and unloading. If defects such as cracks, dents, burrs, or thread damage exist, they can easily lead to leakage or even explosion accidents. Therefore, high-precision detection of cylinder neck defects is a key link in the production and maintenance of steel cylinders. Currently, the inspection of defects at the mouth of steel cylinders mainly relies on two types of technologies: manual visual inspection and traditional automated inspection equipment. During manual inspection, operators need to observe the surface and threads of the cylinder mouth using a magnifying glass or endoscope. This is not only labor-intensive and inefficient, but also susceptible to subjective experience and fatigue, resulting in a detection rate of less than 60% for minute cracks (such as micro-cracks less than 0.5mm in length) and hidden thread damage, leading to a very high risk of missed detections. Furthermore, manual inspection cannot quantify defect dimensions, making it difficult to establish a standardized quality assessment system and hindering subsequent quality traceability. While traditional automated inspection equipment has improved efficiency to some extent, it has significant limitations in terms of comprehensiveness: most equipment only sets up a vision camera in a single direction, and achieves the imaging of a local area of ​​the bottle mouth by translation or lifting. Since the bottle mouth has a cylindrical structure, its outer circumference, the side of the thread profile, and the top plane of the bottle mouth form a multi-dimensional blind spot for inspection. Utility Model Content

[0003] This invention provides a rapid detection device for the mouth of a steel cylinder to solve the problem of steel cylinder mouth detection.

[0004] This utility model provides a rapid detection device for the mouth of a steel cylinder, including a workbench, a bracket fixedly connected to one side of the workbench, a connecting plate fixedly connected to the top of the bracket, a hydraulic rod fixedly connected to the surface of the connecting plate, and a detection mechanism fixedly connected to the bottom of the hydraulic rod. The detection mechanism includes a heat dissipation box with a hydraulic rod fixedly connected to the bottom. A rotating motor is fixedly connected inside the heat dissipation box. A ring bracket is fixedly connected to the bottom of the rotating motor. Several vision cameras are fixedly connected to the top and inner wall of the ring bracket. An image processor is electrically connected to one side of each vision camera via a power cord. A PLC controller is electrically connected to one side of each image processor via a power cord. An alarm light is electrically connected to one side of each PLC controller via a power cord.

[0005] Preferably, upright plates are fixedly connected to both sides of the surface of the workbench, and a drive motor is fixedly connected to the surface of one of the upright plates, so that the drive motor can drive the positive and negative lead screws to rotate.

[0006] Preferably, the output end of the drive motor is fixedly connected to a positive and negative lead screw, and the surface of the positive and negative lead screw is threaded with a clamping block, which facilitates clamping and fixing of the external gas cylinder.

[0007] Preferably, a limiting hole is provided on one side of the clamping block, and a sliding rod is slidably connected inside the limiting hole, which facilitates limiting the clamping block.

[0008] Preferably, the bottom of the workbench is fixedly connected to a support leg, and the surface of the support leg is fixedly connected to a reinforcing rod, which helps to improve the structural strength of the support leg.

[0009] Preferably, a base is fixedly connected to the bottom of the support leg, and the base is fixedly connected to the bottom of the bracket, so that the support leg can be supported and fixed.

[0010] Preferably, a placement plate is fixedly connected to the right side of the bracket, and the PLC controller is mounted on the surface of the placement plate. The PLC controller can easily control the alarm light to sound an alarm. Beneficial effects

[0011] To address the issue of cylinder mouth inspection, an inspection mechanism is installed at the top of the cylinder mouth to check for defects on its surface. The cylinder is placed in the center of a clamping block, which holds it in place. Then, a top hydraulic rod is activated, which moves several vision cameras at the bottom to the appropriate position on the cylinder mouth. A rotating motor then slowly rotates the vision cameras, allowing for a comprehensive inspection of the cylinder mouth surface. The detected data is transmitted to an image processor on one side. The image processor and PLC controller analyze and process the data to quickly identify any defects in the cylinder mouth. If a defect is found, an alarm light is activated to alert staff for timely sorting. This eliminates the need for manual inspection, enables comprehensive inspection, and improves inspection accuracy.

[0012] The above description is merely an overview of the technical solutions of the present utility model embodiments. In order to better understand the technical means of the present utility model embodiments and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model embodiments more obvious and understandable, specific embodiments of the present utility model are described below. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of a rapid detection device for the mouth of a steel cylinder according to the present invention.

[0015] Figure 2 This is a schematic diagram of the detection mechanism of a rapid detection device for the mouth of a steel cylinder according to this utility model.

[0016] Figure 3 This is a schematic diagram of the PLC controller structure of a rapid detection device for the mouth of a steel cylinder according to this utility model.

[0017] Figure 4 This is a schematic diagram of the drive motor structure of a rapid detection device for the mouth of a steel cylinder according to the present invention. Explanation of reference numerals in the attached figures: 1. Workbench; 2. Support; 3. Connecting plate; 4. Hydraulic rod; 5. Detection mechanism; 501. Heat dissipation box; 502. Rotary motor; 503. Ring support; 504. Vision camera; 505. Image processor; 506. PLC controller; 507. Alarm light; 6. Vertical plate; 7. Drive motor; 8. Positive and negative lead screws; 9. Clamping block; 10. Sliding rod; 11. Support leg; 12. Reinforcing rod; 13. Base; 14. Placement plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this invention are intended to cover non-exclusive inclusion.

[0020] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. For example, in the description of this utility model, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They 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. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by fasteners, such as screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1-4 The illustrated rapid cylinder mouth detection device includes a workbench 1, a bracket 2 fixedly connected to one side of the workbench 1, a connecting plate 3 fixedly connected to the top of the bracket 2, a hydraulic rod 4 fixedly connected to the surface of the connecting plate 3, and a detection mechanism 5 fixedly connected to the bottom of the hydraulic rod 4. The detection mechanism 5 includes a heat dissipation box 501 with a hydraulic rod 4 fixedly connected to the bottom. A rotating motor 502 is fixedly connected inside the heat dissipation box 501. A ring bracket 503 is fixedly connected to the bottom of the rotating motor 502. Several vision cameras 504 are fixedly connected to the top and inner wall of the ring bracket 503. An image processor 505 is electrically connected to one side of the vision camera 504 via a power cord. A PLC controller 506 is electrically connected to one side of the image processor 505 via a power cord. An alarm light 507 is electrically connected to one side of the PLC controller 506 via a power cord.

[0025] The workbench 1 has two vertical plates 6 fixedly connected to the edges of both sides of its surface, and a drive motor 7 is fixedly connected to the surface of one of the vertical plates 6.

[0026] The drive motor 7 facilitates the rotation of the positive and negative lead screws 8.

[0027] The output end of the drive motor 7 is fixedly connected to a positive and negative lead screw 8, and a clamping block 9 is threadedly connected to the surface of the positive and negative lead screw 8.

[0028] Clamping block 9 facilitates clamping and fixing of external steel cylinders.

[0029] One side of the clamping block 9 has a limiting hole, and a sliding rod 10 is slidably connected inside the limiting hole.

[0030] The sliding rod 10 facilitates the limiting of the clamping block 9.

[0031] The bottom of the workbench 1 is fixedly connected to a support leg 11, and the surface of the support leg 11 is fixedly connected to a reinforcing rod 12.

[0032] The reinforcing rod 12 helps to improve the structural strength of the support leg 11.

[0033] The support leg 11 is fixedly connected to the base 13 at its bottom, and the base 13 is fixedly connected to the bottom of the bracket 2.

[0034] The base 13 facilitates the support and fixation of the support leg 11.

[0035] The bracket 2 has a fixed connection to a placement plate 14 on its right side, and the PLC controller 506 is mounted on the surface of the placement plate 14.

[0036] The PLC controller 506 facilitates the control of the alarm light 507 to issue an alarm. Working Principle: When using this rapid cylinder mouth inspection device, the inspection mechanism 5 set at the top of the cylinder mouth checks for defects on the surface of the mouth. The cylinder is placed in the middle of the clamping block 9 and clamped and fixed by the clamping block 9. Then, the top hydraulic rod 4 is activated, which drives several vision cameras 504 at the bottom to move to the appropriate position of the cylinder mouth. With the help of the rotating motor 502, the vision cameras 504 rotate slowly, which can perform all-round inspection of the cylinder mouth surface. The detected data is transmitted to the image processor 505 on one side. The image processor 505 and PLC controller 506 analyze and process the data to quickly identify whether there are defects in the cylinder mouth. If a defect is found, the alarm light 507 is controlled to sound an alarm, which promptly reminds the staff to sort the cylinder.

[0037] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steel cylinder mouth rapid detection device, comprising a workbench (1), characterized in that: A bracket (2) is fixedly connected to one side of the workbench (1), a connecting plate (3) is fixedly connected to the top of the bracket (2), a hydraulic rod (4) is fixedly connected to the surface of the connecting plate (3), and a detection mechanism (5) is fixedly connected to the bottom of the hydraulic rod (4). The detection mechanism (5) includes a heat dissipation box (501) with the bottom of a hydraulic rod (4) fixedly connected. A rotating motor (502) is fixedly connected inside the heat dissipation box (501). A ring bracket (503) is fixedly connected to the bottom of the rotating motor (502). Several vision cameras (504) are fixedly connected to the top and inner wall of the ring bracket (503). An image processor (505) is electrically connected to one side of the vision camera (504) via a power line. A PLC controller (506) is electrically connected to one side of the image processor (505) via a power line. An alarm light (507) is electrically connected to one side of the PLC controller (506) via a power line.

2. The device for rapid detection of the bottle mouth of a steel cylinder according to claim 1, characterized in that: The workbench (1) has two fixed edges on both sides of its surface with upright plates (6), and one of the upright plates (6) has a fixed drive motor (7) on its surface.

3. The rapid detection device for the mouth of a steel cylinder according to claim 2, characterized in that: The output end of the drive motor (7) is fixedly connected to a positive and negative lead screw (8), and a clamping block (9) is threadedly connected to the surface of the positive and negative lead screw (8).

4. The rapid detection device for the mouth of a steel cylinder according to claim 3, characterized in that: A limiting hole is provided on one side of the clamping block (9), and a sliding rod (10) is slidably connected inside the limiting hole.

5. The rapid detection device for the mouth of a steel cylinder according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a support leg (11), and a reinforcing rod (12) is fixedly connected to the surface of the support leg (11).

6. The rapid detection device for the mouth of a steel cylinder according to claim 5, characterized in that: The bottom of the support leg (11) is fixedly connected to a base (13), and the base (13) is fixedly connected to the bottom of the bracket (2).

7. The rapid detection device for the mouth of a steel cylinder according to claim 1, characterized in that: The support (2) is fixedly connected to a placement plate (14) on the right side, and the PLC controller (506) is mounted on the surface of the placement plate (14).