A coupling agent uniform coating device for weld detection

By designing a device for uniformly applying coupling agent for weld inspection, a guide tube and synchronous wheel system are used to achieve uniform output and application of the coupling agent, solving the problem of uneven application by manual methods, improving the reliability and accuracy of inspection, and ensuring the timely detection of weld defects.

CN224383211UActive Publication Date: 2026-06-19YANTAI TONGRUI TESTING TECH SERVICE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANTAI TONGRUI TESTING TECH SERVICE CO LTD
Filing Date
2025-09-01
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing ultrasonic weld inspection, the uneven application of coupling agent by manual means affects the reliability and accuracy of the inspection results, and the output is unstable, making it difficult to detect weld defects in a timely manner.

Method used

A device for uniformly applying coupling agent for weld inspection is designed. Through the combination of a guide tube, a shaft plate, a drive wheel, and a synchronous wheel, the device achieves uniform output and application of the coupling agent. The guide tube rolls on the object, driving the drive wheel, which in turn drives the synchronous wheel system to rotate the conveying auger, ensuring uniform application of the coupling agent.

Benefits of technology

This method achieves uniform output and application of the coupling agent, improving the reliability and accuracy of the test results, reducing test errors, and ensuring the timely detection of weld defects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to welding seam detection auxiliary equipment technical field discloses a kind of uniform smearing devices for coupling agent for welding seam detection, including flow guide pipe, one end of flow guide pipe is fixedly installed with first connecting pipe, the other end of flow guide pipe is fixedly installed with second connecting pipe, second connecting pipe one end is screw-threaded with end cap, and conveying auger is movably installed in flow guide pipe and second connecting pipe. Flow guide pipe can be connected to the package with coupling agent by first connecting pipe, so that when moving on the article by coupling agent package to push flow guide pipe, flow guide pipe is rolled on the article by two shaft plates drive wheel, so that drive wheel is driven first shaft rotation by second pivot cooperation first synchronous wheel second synchronous wheel, and then the second bevel gear of first pivot one end drives first bevel gear rotation, that is, it can cooperate third pivot to drive conveying auger rotation in flow guide pipe, so that the uniform speed of coupling agent output.
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Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for weld inspection, and in particular to a device for uniformly applying coupling agent for weld inspection. Background Technology

[0002] Ultrasonic testing of welds is a widely used non-destructive testing technology in the industrial field. It uses the reflection, refraction and scattering phenomena caused by internal defects in the weld when ultrasonic waves propagate in a medium to judge the quality of the weld. During the test, a coupling agent is first applied to the surface of the weld to reduce air interference between the probe and the weld, so that the ultrasonic waves can be transmitted into the weld efficiently.

[0003] In the current ultrasonic weld inspection process, some inspectors still use the method of manually applying coupling agent. This method is not only inefficient, but also makes it difficult to ensure that the coupling agent is evenly applied to the weld inspection area. This will directly affect the propagation of ultrasonic waves and reduce the reliability of the inspection results. In addition, manual application of coupling agent also has the problem of unstable coupling agent output. Too much or too little coupling agent will have an adverse effect on the inspection accuracy, which may lead to errors in the inspection results and make it impossible to detect defects in the weld in a timely and accurate manner. Utility Model Content

[0004] The purpose of this invention is to provide a device for uniformly applying coupling agent for weld inspection. A guide tube is connected to a package containing coupling agent via a first connecting tube. When the guide tube is pushed to move on the item, the guide tube drives a drive wheel to roll on the item via two shaft plates. The drive wheel drives the first shaft to rotate via a second rotating shaft in conjunction with a first synchronous wheel and a second synchronous wheel. This causes a second bevel gear at one end of the first rotating shaft to drive the first bevel gear to rotate, which in turn drives a conveying auger to rotate inside the guide tube in conjunction with a third rotating shaft. This achieves uniform output of the coupling agent and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A device for uniformly applying coupling agent for weld inspection includes a guide tube, a first connecting tube fixedly installed at one end of the guide tube, a second connecting tube fixedly installed at the other end of the guide tube, an end cap threadedly connected to one end of the second connecting tube, a conveying auger movably installed inside the guide tube and the second connecting tube, a second shaft seat fixedly installed on the outside of the guide tube, a first rotating shaft rotatably installed inside the second shaft seat, a plurality of shaft plates fixedly installed at the lower end of the guide tube, a base plate fixedly installed at the lower end of the shaft plates, and an abutment plate movably installed at the lower end of the base plate.

[0007] As a further preferred embodiment of this utility model, a first bearing seat is fixedly installed on the inner side of the guide tube.

[0008] As a further preferred embodiment of this utility model, a third rotating shaft is fixedly installed in the middle of the conveying auger. One end of the third rotating shaft is rotatably installed in the first shaft seat, and the other end of the third rotating shaft is rotatably installed in the shaft groove in the end cover. A first bevel gear is also fixedly installed on the third rotating shaft located between the conveying auger and the first shaft seat. When the conveying auger rotates in the guide tube, it can output the coupling agent from the packaging at a uniform speed.

[0009] As a further preferred embodiment of this utility model, a second bevel gear is fixedly installed at one end of the first rotating shaft, the second bevel gear meshing with the first bevel gear, and a second synchronous pulley is fixedly installed at the other end of the first rotating shaft.

[0010] As a further preferred embodiment of the present invention, a second rotating shaft is rotatably mounted between the two shaft plates, and a drive wheel is fixedly mounted on the second rotating shaft located between the two shaft plates. A first synchronous pulley is also fixedly mounted on the second rotating shaft near one of the shaft plates, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive.

[0011] As a further preferred embodiment of this utility model, a T-shaped fixing seat is fixedly installed at the lower end of the base plate, a T-shaped slot is provided at the upper end of the contact plate, and an application cotton is fixedly installed at the lower end of the contact plate. The contact plate is inserted and installed on the T-shaped fixing seat through the T-shaped slot. The coupling agent package is held and the drive wheel is driven to roll on the outside of the item to be tested through the guide tube, thereby cooperating with the second rotating shaft, the first synchronous wheel, the first rotating shaft, the second synchronous wheel, the second bevel gear, the third rotating shaft, and the first bevel gear to drive the conveying auger to rotate.

[0012] As a further preferred embodiment of this utility model, a nozzle is fixedly installed at the lower end of the end cap, and the inner cavity of the nozzle is connected to the inner cavity of the guide pipe and the second connecting pipe through the end cap.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, the guide tube can be connected to a package containing coupling agent via a first connecting tube. When the guide tube is pushed across an item by the coupling agent package, the guide tube drives a drive wheel to roll on the item via two shaft plates. This causes the drive wheel to rotate via a second rotating shaft in conjunction with a first synchronous wheel. The second synchronous wheel then drives the first rotating shaft to rotate, which in turn drives the first bevel gear at one end of the first rotating shaft to rotate. This, in turn, drives the conveying auger to rotate within the guide tube in conjunction with a third rotating shaft, thereby outputting the coupling agent at a uniform speed. The coupling agent is then evenly applied to the detection area via the application cotton at the lower ends of the two base plates. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the disassembled main structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the guide tube of this utility model;

[0018] Figure 4 This is a schematic diagram of the flow guide tube, shaft plate, and base plate structure of this utility model.

[0019] In the diagram: 1. Guide pipe; 2. First connecting pipe; 3. Second connecting pipe; 4. End cap; 5. Conveying auger; 6. First rotating shaft; 7. Shaft plate; 8. Base plate; 9. Contact plate; 10. First shaft seat; 11. Second shaft seat; 12. Second rotating shaft; 13. Drive wheel; 14. First synchronous pulley; 15. Second synchronous pulley; 16. Third rotating shaft; 17. First bevel gear; 18. Second bevel gear; 19. Nozzle; 20. T-shaped fixing seat; 21. T-shaped slot; 22. Applying cotton. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-4 As shown, the present invention provides a uniform coating device for welding seam inspection, comprising a guide tube 1, a first connecting tube 2 fixedly installed at one end of the guide tube 1, a second connecting tube 3 fixedly installed at the other end of the guide tube 1, an end cap 4 threadedly connected to one end of the second connecting tube 3, a conveying auger 5 movably installed inside the guide tube 1 and the second connecting tube 3, a second shaft seat 11 fixedly installed on the outside of the guide tube 1, a first rotating shaft 6 rotatably installed inside the second shaft seat 11, a plurality of shaft plates 7 fixedly installed at the lower end of the guide tube 1, a base plate 8 fixedly installed at the lower end of the shaft plates 7, and an abutment plate 9 movably installed at the lower end of the base plate 8.

[0022] like Figures 1-3As shown, a first bearing seat 10 is fixedly installed inside the guide pipe 1, and a third rotating shaft 16 is fixedly installed in the middle of the conveying auger 5. One end of the third rotating shaft 16 is rotatably installed in the first bearing seat 10, and the other end of the third rotating shaft 16 is rotatably installed in the shaft groove inside the end cover 4. A first bevel gear 17 is also fixedly installed on the third rotating shaft 16 located between the conveying auger 5 and the first bearing seat 10. When the conveying auger 5 rotates in the guide pipe 1, it can output the coupling agent from the packaging at a uniform speed. A second bevel gear 18 is fixedly installed on one end of the first rotating shaft 6. The second bevel gear 18 meshes with the first bevel gear 17. A second synchronous pulley 15 is fixedly installed on the other end of the first rotating shaft 6. A second rotating shaft 12 is rotatably installed between the two shaft plates 7. A drive wheel 13 is also fixedly installed on the second rotating shaft 12 located between the two shaft plates 7. A first synchronous pulley 14 is also fixedly installed on the second rotating shaft 12 near one of the shaft plates 7, and the first synchronous pulley 14 and the second synchronous pulley 15 are connected by a synchronous belt drive.

[0023] like Figures 2-3 As shown, a T-shaped fixing seat 20 is fixedly installed at the lower end of the base plate 8, a T-shaped slot 21 is opened at the upper end of the contact plate 9, and an application cotton 22 is fixedly installed at the lower end of the contact plate 9. The contact plate 9 is inserted and installed on the T-shaped fixing seat 20 through the T-shaped slot 21. The coupling agent package is held and the drive wheel 13 is driven to roll on the outside of the item to be tested through the guide tube 1, thereby cooperating with the second rotating shaft 12, the first synchronous wheel 14, the first rotating shaft 6, the second synchronous wheel 15, the second bevel gear 18, the third rotating shaft 16, and the first bevel gear 17 to drive the conveying auger 5 to rotate.

[0024] like Figures 1-3 As shown, a nozzle 19 is fixedly installed at the lower end of the end cap 4, and the inner cavity of the nozzle 19 is connected to the inner cavity of the guide pipe 1 and the second connecting pipe 3 through the end cap 4.

[0025] It should be noted that this utility model is a device for uniformly applying coupling agent for weld inspection. When using it, the guide tube 1 is first connected to the package containing the coupling agent through the first connecting tube 2. At this time, the end cap 4 is installed at the other end of the second connecting tube 3. Then, the coupling agent package is held and the guide tube 1 is pushed to move on the item to be tested. The shaft plate 7 at the lower end of the guide tube 1 will drive the drive wheel 13 to roll on the surface of the item. The drive wheel 13 is installed on the second rotating shaft 12. When the second rotating shaft 12 rotates, it will drive the first synchronous wheel 14 to rotate. Then, the rotation of the first synchronous wheel 14 will drive the second synchronous wheel 15 to rotate through the synchronous belt, so that the second synchronous wheel 15 drives the first rotating shaft 6 to rotate. Then, the first rotating shaft 6 drives the second bevel gear 18 to rotate. The rotation of the second bevel gear 18 will drive the first bevel gear 17 to rotate, so that the first bevel gear 17 will drive the third rotating shaft 16 to rotate. Then, the rotation of the third rotating shaft 16 will drive the conveying auger 5 to rotate in the guide tube 1. When the conveying auger 5 rotates, the coupling agent is output from the package at a uniform speed and flows out through the nozzle 19. The smearing cotton 22 at the lower end of the contact plate 9 can evenly apply the flowing coupling agent to the detection area.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for uniformly applying coupling agent for weld inspection, characterized in that: The system includes a guide pipe (1), one end of which is fixedly installed with a first connecting pipe (2), and the other end of which is fixedly installed with a second connecting pipe (3). One end of the second connecting pipe (3) is threadedly connected with an end cap (4). A conveying auger (5) is movably installed inside the guide pipe (1) and the second connecting pipe (3). A second shaft seat (11) is fixedly installed on the outside of the guide pipe (1). A first rotating shaft (6) is rotatably installed inside the second shaft seat (11). Multiple shaft plates (7) are fixedly installed at the lower end of the guide pipe (1). A base plate (8) is fixedly installed at the lower end of the shaft plate (7). An abutment plate (9) is movably installed at the lower end of the base plate (8).

2. The device for uniformly applying coupling agent for weld inspection according to claim 1, characterized in that: The first bearing seat (10) is fixedly installed on the inner side of the guide tube (1).

3. The device for uniformly applying coupling agent for weld inspection according to claim 1, characterized in that: A third rotating shaft (16) is fixedly installed in the middle of the conveying auger (5). One end of the third rotating shaft (16) is rotatably installed in the first shaft seat (10), and the other end of the third rotating shaft (16) is rotatably installed in the shaft groove in the end cover (4). A first bevel gear (17) is also fixedly installed on the third rotating shaft (16) located between the conveying auger (5) and the first shaft seat (10).

4. The device for uniformly applying coupling agent for weld inspection according to claim 3, characterized in that: A second bevel gear (18) is fixedly installed at one end of the first rotating shaft (6), and the second bevel gear (18) meshes with the first bevel gear (17). A second synchronous pulley (15) is fixedly installed at the other end of the first rotating shaft (6).

5. The device for uniformly applying coupling agent for weld inspection according to claim 4, characterized in that: A second rotating shaft (12) is rotatably mounted between the two shaft plates (7). A drive wheel (13) is also fixedly mounted on the second rotating shaft (12) between the two shaft plates (7). A first synchronous wheel (14) is also fixedly mounted on the second rotating shaft (12) near one of the shaft plates (7). The first synchronous wheel (14) and the second synchronous wheel (15) are connected by a synchronous belt drive.

6. The device for uniformly applying coupling agent for weld inspection according to claim 5, characterized in that: The bottom plate (8) is fixedly installed with a T-shaped fixing seat (20) at the lower end, and the upper end of the contact plate (9) is provided with a T-shaped slot (21). The lower end of the contact plate (9) is fixedly installed with a coating cotton (22), and the contact plate (9) is inserted and installed on the T-shaped fixing seat (20) through the T-shaped slot (21).

7. The device for uniformly applying coupling agent for weld inspection according to claim 1, characterized in that: A nozzle (19) is fixedly installed at the lower end of the end cap (4). The inner cavity of the nozzle (19) is connected to the inner cavity of the guide pipe (1) and the second connecting pipe (3) through the end cap (4).