A quick detection and marking device for leakage points of chemical plastic barrels

Abstract

The utility model discloses a kind of quick detection and marking device of chemical plastics bucket leakage point, it is related to leakage detection technical field, including detection box, the top of the detection box is provided with gas sending mechanism, and a group of clamping mechanisms is symmetrically arranged below the detection box, the inside of the detection box is provided with detection marking mechanism, for realizing automatic fast marking to leakage point, including in detection marking mechanism: rotating unit and marking unit, by being provided with rotating unit and marking unit, the all-around automatic detection of chemical plastics bucket can be realized in detection box.Gas detection probe real-time monitoring leakage airflow, once finding leakage point, servo motor drives rotating ring to drive marking unit rotation positioning, simultaneously drive assembly control screw rod rotation, make spray paint assembly move up and down to leakage point position, by spray painting machine automatic spray painting marking, to realize detection and marking integration, avoid artificial secondary search, improve detection efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of leakage detection technology, specifically a rapid detection and marking device for leak points in chemical plastic drums. Background Technology

[0002] Chemical plastic drums, also known as plastic chemical drums or plastic chemical drums, are packaging containers made of polyethylene as the main raw material and formed in one piece through a blow molding process.

[0003] According to the patent titled "A Leakage Detection Device for Chemical Storage Tanks" (Patent Publication No.: CN223710942U, Patent Publication Date: 2025-12-23), it includes a mounting vertical rod and multiple clamping rings. The mounting vertical rod has two mounting horizontal blocks on its side wall and a monitoring mechanism for monitoring a pressure relief valve. The monitoring mechanism includes a measuring ring fixedly connected to the side wall of the mounting vertical rod. Multiple sensors are installed on the inner wall of the measuring ring. Two mounting grooves are formed on the side wall of the clamping rings, each containing a rotating shaft. Multiple sensors installed near the pressure relief valve measure the valve's leakage in real time, and the leakage status of the pressure relief valve can be promptly reported to the chemical enterprise's monitoring center or the mobile terminal of staff, thereby improving the production safety of the chemical enterprise.

[0004] Based on the aforementioned existing technologies, current rapid detection and marking devices for leaks in chemical plastic drums still have the following problems: many existing detection devices can only detect leaks but cannot leave physical marks directly on the container on-site. Operators need to manually mark the location again by relying on memory or referring to the screen, which is cumbersome and prone to errors. Therefore, this utility model provides a rapid detection and marking device for leaks in chemical plastic drums. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a rapid detection and marking device for leaks in chemical plastic drums. It solves the following problems with existing rapid detection and marking devices for leaks in chemical plastic drums: many existing detection devices can only detect leaks but cannot leave physical marks directly on the container at the scene. Operators need to manually mark the leaks by relying on memory or referring to a screen, a cumbersome and error-prone process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid detection and marking device for leak points in chemical plastic drums, comprising a detection box, an air supply mechanism at the top of the detection box, and a set of clamping mechanisms symmetrically arranged below the detection box. The detection box contains a detection marking mechanism for automatically and rapidly marking leak points. The detection marking mechanism includes: The rotating unit is located inside the testing chamber and is used for all-around testing of chemical plastic drums; The marking unit, located below the rotating unit, includes a fixed box. A lead screw is rotatably mounted inside the fixed box, and a movable seat is rotatably mounted on the surface of the lead screw. A painting assembly is mounted on the inner side of the movable seat via a displacement limiting seat. The lead screw is driven to rotate by a drive assembly above the fixed box, causing the movable seat to drive the displacement limiting seat and the painting assembly to move up and down, thereby quickly marking the leak point with paint. Several fixed gas detection probes are fixedly mounted inside the fixed box for detecting the airflow at the leak point.

[0007] Preferably, limit plates are fixedly installed above and below the surface of the lead screw to limit the movement position of the moving seat.

[0008] Preferably, the drive assembly includes a large bevel gear fixedly mounted on the surface of the lead screw, a small motor is fixedly mounted on the outside of the fixed box, and the output end of the small motor passes through the fixed box and is fixedly mounted with a small bevel gear, and the small bevel gear is meshed with the large bevel gear, so that the small bevel gear and the small motor drive the small bevel gear to achieve the rotation of the lead screw.

[0009] Preferably, the surface of the painting assembly is fixedly mounted on a fixed seat on the front side of the displacement limiting seat. The displacement limiting seat is located inside the rectangular groove on the inner side of the lead screw for limiting and sliding. A painting machine is fixedly mounted inside the fixed seat for painting the leak point. A movable gas detection probe is fixedly mounted above the fixed seat for observing the location of the leak point.

[0010] Preferably, the rotating unit includes a fixed ring fixedly installed at the top of the inner cavity of the detection box, a rotating ring rotatably installed inside the fixed ring, and a toothed ring fixedly installed on the surface of the rotating ring. A servo motor is fixedly installed at the top of the detection box, and a gear is fixedly installed at the output end of the servo motor through the detection box. The gear meshes with the toothed ring, and a fixed box is fixedly installed at the bottom of the rotating ring. The marking unit rotates around the chemical plastic barrel inside the detection box for detection by rotating the rotating ring.

[0011] Preferably, the air supply mechanism includes a hydraulic rod fixedly installed on the top of the test box. The output end of the hydraulic rod passes through the top plate of the test box and is fixedly installed with a pressure plate. A rubber pad is fixedly installed at the bottom of the pressure plate. An air supply pipe is fixedly installed inside the pressure plate and the rubber pad. An elastic tube is fixedly installed at the top of the air supply pipe. The output end of the elastic tube passes through the top plate of the test box and is fixedly installed with a pump. An air inlet pipe is fixedly installed on one side of the pump.

[0012] Preferably, the clamping mechanism includes two cylinders fixedly installed on both sides of the testing box, and the output end of the cylinder passes through the side plate of the testing box and is fixedly installed with a clamping block. The clamping block is driven by the cylinder to move and clamp and fix the chemical plastic drum.

[0013] This invention provides a rapid detection and marking device for leaks in chemical plastic drums. Compared with existing technologies, it has the following advantages: 1. This rapid detection and marking device for leaks in chemical plastic drums, equipped with a rotating unit and a marking unit, enables omnidirectional automatic detection of chemical plastic drums within the detection chamber. A fixed gas detection probe monitors the leaking gas flow in real time. Once a leak is detected, a servo motor drives a rotating ring to rotate and position the marking unit. Simultaneously, a drive assembly controls a lead screw to rotate, causing the painting assembly to move up and down to the leak location. The painting machine then automatically applies paint to mark the leak, thus integrating detection and marking, avoiding manual secondary searches, and improving detection efficiency and accuracy.

[0014] 2. This rapid detection and marking device for leaks in chemical plastic drums utilizes a gas delivery mechanism to inject detection gas into the drum, which, combined with a clamping mechanism, securely holds the drum, ensuring no displacement during detection and improving detection stability. The marking unit incorporates a limit plate and a displacement limit seat to ensure precise movement of the spraying components and prevent mismarking. The overall device features a compact structure and a high degree of automation, making it suitable for rapid on-site detection and marking of leaks in plastic drums during chemical production, significantly improving operational safety and maintenance efficiency. Attached Figure Description

[0015] Figure 1 This is a right-side perspective view of the structure of this utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the detection and marking mechanism of this utility model; Figure 4 This is a partial three-dimensional cross-sectional view of the marking unit of this utility model.

[0016] In the diagram: 1. Detection box; 2. Detection marking mechanism; 21. Rotating unit; 211. Fixed ring; 212. Rotating ring; 213. Gear ring; 214. Servo motor; 215. Gear; 22. Marking unit; 221. Fixed box; 222. Lead screw; 223. Moving seat; 224. Limiting displacement seat; 225. Limiting plate; 226. Fixed gas detection probe; 3. Gas delivery mechanism; 31. Hydraulic rod; 32. Pressure plate; 33. Rubber pad; 34. Gas delivery pipe; 35. Elastic tube; 36. Pump; 37. Inlet pipe; 4. Clamping mechanism; 41. Cylinder; 42. Clamping block; 5. Drive assembly; 51. Large bevel gear; 52. Small bevel gear; 53. Small motor; 6. Painting assembly; 61. Fixed seat; 62. Painting machine; 63. Moving gas detection probe. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4 This utility model provides a technical solution: A rapid detection and marking device for leak points in chemical plastic drums includes a detection box 1. An air supply mechanism 3 is installed on the top of the detection box 1, and a set of clamping mechanisms 4 are symmetrically arranged below the detection box 1. A detection marking mechanism 2 is installed inside the detection box 1 to automatically and rapidly mark the leak points. The detection marking mechanism 2 includes: The rotating unit 21 is located inside the testing chamber 1 and is used for all-around testing of chemical plastic drums; The marking unit 22, located below the rotating unit 21, includes a fixed box 221. A lead screw 222 is rotatably mounted inside the fixed box 221, and a movable seat 223 is rotatably mounted on the surface of the lead screw 222. A painting assembly 6 is mounted on the inner side of the movable seat 223 via a displacement limiting seat 224. The lead screw 222 is driven to rotate by the driving assembly 5 above the fixed box 221, causing the movable seat 223 to drive the displacement limiting seat 224 and the painting assembly 6 to move up and down, thereby quickly marking the leak point with paint. Several fixed gas detection probes 226 are fixedly mounted on the inner side of the fixed box 221 for detecting the airflow at the leak point.

[0019] In this embodiment, limit plates 225 are fixedly installed above and below the surface of the lead screw 222 to limit the movement position of the movable seat 223.

[0020] The limiting plate 225 set above and below the surface of the lead screw 222 mechanically limits the movement position of the moving seat 223, preventing it from leaving the effective stroke of the lead screw 222 during movement, ensuring that the vertical movement range of the painting assembly 6 is controllable, and improving the accuracy of the marking position and the safety of the device operation.

[0021] In this embodiment, the drive assembly 5 includes a large bevel tooth 51 fixedly installed on the surface of the lead screw 222. A small motor 53 is fixedly installed on the outside of the fixed box 221. The output end of the small motor 53 passes through the fixed box 221 and is fixedly installed with a small bevel tooth 52. The small bevel tooth 52 and the large bevel tooth 51 are meshed together. The small bevel tooth 52 and the small motor 53 drive the small motor 53 to rotate the lead screw 222.

[0022] The small motor 53 is a DC geared motor, model JGA25-37. It is driven by the meshing of the large bevel gear 51 and the small bevel gear 52 in the drive assembly 5. The small motor 53 drives the lead screw 222 to rotate, realizing the conversion of the motor's rotational motion into the lead screw's precise linear transmission. It has a compact structure and high transmission efficiency, and is suitable for installation environments with limited internal space in the detection box 1, ensuring that the painting assembly 6 can move quickly and smoothly to the leak point.

[0023] In this embodiment, the surface of the paint spraying assembly 6 is fixedly mounted on the fixed seat 61 on the front side of the displacement limiting seat 224. The displacement limiting seat 224 is located inside the rectangular groove on the inner side of the lead screw 222 for limiting sliding. The paint spraying machine 62 is fixedly mounted inside the fixed seat 61 for spraying paint on the leak point. A movable gas detection probe 63 is fixedly mounted above the fixed seat 61 for observing the location of the leak point.

[0024] The paint sprayer 62 is a miniature solenoid valve type spray gun, which is supplied with air by an external air source. The nozzle diameter is 0.3mm, and it can spray fast-drying marking paint. The paint spraying assembly 6 is installed on the front side of the displacement limiting seat 224 via the fixing base 61. The paint sprayer 62 can automatically spray paint to mark the detected leak points. The moving gas detection probe 63 monitors the gas concentration in real time and assists in positioning, so as to realize the synchronous completion of detection and marking, avoid manual intervention, and improve work efficiency and marking consistency.

[0025] In this embodiment, the rotating unit 21 includes a fixed ring 211 fixedly installed on the top of the inner cavity of the detection box 1, a rotating ring 212 rotatably installed inside the fixed ring 211, and a toothed ring 213 fixedly installed on the surface of the rotating ring 212. A servo motor 214 is fixedly installed on the top of the detection box 1. The output end of the servo motor 214 passes through the detection box 1 and is fixedly installed with a gear 215. The gear 215 is meshed with the toothed ring 213. The fixed box 221 is fixedly installed on the bottom of the rotating ring 212. The marking unit 22 rotates and detects around the chemical plastic barrel inside the detection box 1 by rotating the rotating ring 212.

[0026] The servo motor 214 drives the gear 215 to mesh with the gear ring 213, which in turn drives the rotating ring 212 and the fixed box 221 to rotate as a whole. This allows the marking unit 22 to perform 360° all-round detection around the chemical plastic drum, covering the surface of the drum without any blind spots, thus improving the comprehensiveness and reliability of leak point detection.

[0027] In this embodiment, the air supply mechanism 3 includes a hydraulic rod 31 fixedly installed on the top of the test box 1. The output end of the hydraulic rod 31 passes through the top plate of the test box 1 and is fixedly installed with a pressure plate 32. A rubber pad 33 is fixedly installed at the bottom of the pressure plate 32. An air supply pipe 34 is fixedly installed inside the pressure plate 32 and the rubber pad 33. An elastic tube 35 is fixedly installed at the top of the air supply pipe 34. The output end of the elastic tube 35 passes through the top plate of the test box 1 and is fixedly installed with a pump 36. An air inlet pipe 37 is fixedly installed on one side of the pump 36.

[0028] The hydraulic rod 31 is model YB1-4. The hydraulic rod 31 drives the pressure plate 32 and the rubber pad 33 to press the barrel opening tightly. The pump 36 injects detection gas into the barrel through the air inlet pipe 37 and the air delivery pipe 34 to simulate the leakage environment and provide reliable gas source conditions for the gas detection probe, ensuring the sensitivity and accuracy of the detection.

[0029] In this embodiment, the clamping mechanism 4 includes two cylinders 41 fixedly installed on both sides of the test box 1, and the output end of the cylinder 41 passes through the side plate of the test box 1 and is fixedly installed with a clamping block 42. The clamping block 42 is driven to move by the cylinder 41 and clamps and fixes the chemical plastic barrel.

[0030] The cylinder 41 is model DSNU-20-50-PPV-A. It is electrically connected to an external power source and is operated by a human-controlled control panel. The cylinder 41 drives the clamping block 42 to clamp the chemical plastic drum from both sides, preventing it from shaking or shifting during the inspection process. This ensures the relative position of the inspection marking mechanism 2 and the surface of the drum is stable, thus improving the accuracy of inspection and marking.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] During operation, first, the chemical plastic drum is placed inside the testing box 1. The cylinder 41 moves to move the clamping block 42 to clamp and fix the chemical plastic drum. Next, the hydraulic rod 31 moves to push the pressure plate 32 and the rubber pad 33 down. The rubber pad 33 covers the top of the chemical plastic drum. The air supply pipe 34 is inserted into the chemical plastic drum. The pump 36 runs to put the detection gas into the chemical plastic drum through the air inlet pipe 37, the elastic tube 35 and the air supply pipe 34. Then, the servo motor 214 drives the gear 215 to rotate, the gear 215 drives the gear ring 213 and the rotating ring 212 to rotate, the rotating ring 212 drives the fixed box 221 to rotate, and the fixed gas detection probe 226 on the fixed box 221 detects the gas leaking inside the chemical plastic drum. After detecting the leak point, the small motor 53 drives the small bevel gear 52 to rotate, the small bevel gear 52 drives the small motor 53 to rotate, the small motor 53 drives the lead screw 222 to rotate, the lead screw 222 drives the moving seat 223 and the limit displacement seat 224 to move up and down, and synchronously drives the painting assembly 6 to move up and down. After the moving gas detection probe 63 finds the leak point, the painting machine 62 sprays paint on the leak point.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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. A rapid detection and marking device for leak points in chemical plastic drums, comprising a detection box, wherein an air supply mechanism is provided on the top of the detection box, and a set of clamping mechanisms are symmetrically arranged below the detection box, characterized in that: The detection box is equipped with a detection marking mechanism for automatically and quickly marking leak points. The detection marking mechanism includes: The rotating unit is located inside the testing chamber and is used for all-around testing of chemical plastic drums; The marking unit, located below the rotating unit, includes a fixed box. A lead screw is rotatably mounted inside the fixed box, and a movable seat is rotatably mounted on the surface of the lead screw. A painting assembly is mounted on the inner side of the movable seat via a displacement limiting seat. The lead screw is driven to rotate by a drive assembly above the fixed box, causing the movable seat to drive the displacement limiting seat and the painting assembly to move up and down, thereby quickly marking the leak point with paint. Several fixed gas detection probes are fixedly mounted inside the fixed box for detecting the airflow at the leak point.

2. The rapid detection and marking device for leak points in chemical plastic drums according to claim 1, characterized in that: Limiting plates are fixedly installed above and below the surface of the lead screw to limit the movement position of the moving seat.

3. The rapid detection and marking device for leak points in chemical plastic drums according to claim 1, characterized in that: The drive assembly includes a large bevel gear fixedly mounted on the surface of the lead screw. A small motor is fixedly mounted on the outside of the fixed box, and the output end of the small motor passes through the fixed box and is fixedly mounted with a small bevel gear. The small bevel gear and the large bevel gear are meshed together. The small bevel gear and the small motor drive the small bevel gear to achieve the rotation of the lead screw.

4. The rapid detection and marking device for leak points in chemical plastic drums according to claim 1, characterized in that: The painting assembly is fixedly mounted on a fixed seat on the front side of the displacement limiting seat. The displacement limiting seat is located inside the rectangular groove on the inner side of the lead screw and slides in a limited manner. A painting machine is fixedly mounted inside the fixed seat for painting the leak point. A movable gas detection probe is fixedly mounted above the fixed seat for observing the location of the leak point.

5. The rapid detection and marking device for leak points in chemical plastic drums according to claim 1, characterized in that: The rotating unit includes a fixed ring fixedly installed at the top of the inner cavity of the detection box, a rotating ring rotatably installed inside the fixed ring, and a toothed ring fixedly installed on the surface of the rotating ring. A servo motor is fixedly installed at the top of the detection box, and a gear is fixedly installed at the output end of the servo motor through the detection box. The gear meshes with the toothed ring, and a fixed box is fixedly installed at the bottom of the rotating ring. The marking unit rotates around the chemical plastic barrel inside the detection box for detection by rotating the rotating ring.

6. The rapid detection and marking device for leak points in chemical plastic drums according to claim 1, characterized in that: The air supply mechanism includes a hydraulic rod fixedly installed on the top of the test box. The output end of the hydraulic rod passes through the top plate of the test box and is fixedly installed with a pressure plate. A rubber pad is fixedly installed at the bottom of the pressure plate. An air supply pipe is fixedly installed inside the pressure plate and the rubber pad. An elastic tube is fixedly installed at the top of the air supply pipe. The output end of the elastic tube passes through the top plate of the test box and is fixedly installed with a pump. An air inlet pipe is fixedly installed on one side of the pump.

7. The rapid detection and marking device for leak points in chemical plastic drums according to claim 1, characterized in that: The clamping mechanism includes two cylinders fixedly installed on both sides of the testing box. The output end of the cylinder passes through the side plate of the testing box and is fixedly installed with a clamping block. The clamping block is driven by the cylinder to move and clamp and fix the chemical plastic drum.

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