An ultrasonic testing couplant circulation device

Abstract

The utility model relates to ultrasonic detection technical field discloses a kind of ultrasonic detection coupling agent circulating device, including coupling agent box, collection box and smearing component, the inside of coupling agent box is provided with liquid sending component, and liquid sending component includes booster pump, microcontroller and battery, collection box inside is provided with suction pump, and smearing component includes smearing presser plate.The utility model is through setting liquid sending component and smearing component, when using, can be monitored coating dynamic by pressure sensor, when pressure reaches certain value, automatically opens booster pump delivery coupling agent, makes coupling agent from coupling agent box delivery to smearing presser plate, realizes the automatic supply and uniform smearing of coupling agent, reduces artificial smearing time, solves the technical problem that traditional coupling agent smearing mode exists and smearing process is complicated, smearing efficiency is low, and smearing is not uniform.In addition, after coating is finished, open suction pump, and the excess coupling agent is recycled into collection box by recovery pipe, to realize coupling agent recycling.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic testing technology, and in particular to an ultrasonic testing coupling agent circulation device. Background Technology

[0002] Ultrasonic testing is a detection method that uses ultrasonic waves to inspect a surface. It features high sound intensity and transmittance, resulting in excellent testing performance. To improve coupling, a thin layer of liquid, called a couplant, is added between the probe and the inspection surface. The couplant's function is to eliminate air between the probe and the workpiece surface, allowing ultrasonic waves to be effectively transmitted to the workpiece, thus achieving the purpose of inspection.

[0003] In the existing technology, the traditional coupling agent application process usually involves manually squeezing the coupling agent onto the surface of the workpiece to be tested, and then applying the coupling agent by hand or brush. The application process is cumbersome and inefficient. Moreover, manual application cannot squeeze out the coupling agent in a quantitative manner, resulting in uneven application. If too little coupling agent is squeezed out, the test data will be inaccurate, and if too much coupling agent is squeezed out, it will result in waste of coupling agent.

[0004] In summary, traditional coupling agent application methods suffer from problems such as cumbersome application process, low application efficiency, and uneven application. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an ultrasonic testing coupling agent circulation device, which aims to solve the problems of cumbersome application process, low application efficiency and uneven application of traditional coupling agent application methods.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An ultrasonic testing coupling agent circulation device includes a coupling agent box, a collection box, and an application assembly. The coupling agent box contains a delivery assembly, which includes a booster pump, a microcontroller, and a battery. The battery powers the booster pump and the microcontroller, respectively. The microcontroller is communicatively connected to the booster pump. The bottom of the coupling agent box has an outlet pipe connected to the outlet end of the booster pump. The collection box is fixedly located at the front of the coupling agent box. The collection box contains a suction pump, and a suction pump control module is located at the front of the collection box. The bottom of the collection box has a recovery pipe connected to the suction end of the suction pump. The application assembly includes an application plate and a support plate. The working surface of the application plate has multiple silicone dispensing heads. The top of the device is provided with a liquid inlet end. The inside of the application plate is provided with multiple liquid delivery channels that correspond one-to-one with the multiple silicone liquid outlets. The multiple liquid delivery channels are connected to the liquid inlet end. A three-way connector is fixedly connected to the top of the support plate. The upper end of the three-way connector is connected to the liquid outlet pipe, and the middle end of the three-way connector is connected to the recovery pipe. A telescopic pipe connected to the three-way connector is connected to the bottom of the support plate. The lower end of the telescopic pipe is connected to the liquid inlet end of the application plate. Two elastic elements symmetrically arranged on both sides of the telescopic pipe are also provided between the bottom of the support plate and the application plate. A pressure sensor is provided at the end of the elastic element connected to the support plate. The pressure sensor is communicatively connected to the microcontroller.

[0008] In a preferred embodiment, the coupling agent box is divided into a liquid storage chamber and a controller mounting chamber by a partition. The booster pump is disposed in the liquid storage chamber, and the outlet end of the booster pump is fixedly connected to a guide pipe, which passes through the bottom of the coupling agent box and communicates with the outlet pipe. The microcontroller and the battery are installed in the controller mounting chamber.

[0009] In a preferred embodiment, the coupling agent box is provided with a maintenance cover on the side near the microcontroller and the battery.

[0010] In a preferred embodiment, a heating assembly is provided on the rear side of the coupling agent box. The heating assembly includes a heating plate and an insulating heat-insulating pad. The inner side of the heating plate serves as the heating side and communicates with the liquid storage cavity. The outer side of the heating plate is connected to the inner side of the insulating heat-insulating pad. The outer side of the insulating heat-insulating pad is provided with anti-slip protrusions.

[0011] In a preferred embodiment, a one-way valve is provided between the outlet pipe and the guide pipe, and a one-way valve is provided between the suction end of the suction pump and the recovery pipe.

[0012] In a preferred embodiment, a power switch is provided on the top of the coupling agent box, which is used to connect or disconnect the power supply line between the battery and the booster pump and the microcontroller; the suction pump control module includes a battery and a control switch, which is connected to the power supply line between the battery and the suction pump.

[0013] In a preferred embodiment, the coupling agent box is provided with an elastic band, one end of which is connected to one side of the coupling agent box, and the other end of which passes around the rear side of the coupling agent box and connects to the other side of the coupling agent box. The elastic band is a rubber anti-slip elastic band, and the inner side of the elastic band is provided with anti-slip texture.

[0014] In a preferred embodiment, both the coupling agent box and the collection box are fitted with inlet plugs on their tops, and both the coupling agent box and the collection box are provided with liquid level bars on their sides.

[0015] In a preferred embodiment, a magnetic suction plate is provided on the front side of the coupling agent box, and the collection box is attracted to the front side of the coupling agent box by the magnetic suction plate; the three-way connector is threadedly connected to the liquid outlet pipe and the recovery pipe respectively.

[0016] In a preferred embodiment, the working surface of the coating plate is provided with two flexible silicone brushes symmetrically arranged on both sides of the working surface, and the plurality of silicone dispensing heads are located between the two flexible silicone brushes. The outer side of the flexible silicone brushes is provided with a plurality of ball bearings, which are protruding from the working surface of the coating plate in a rollable manner.

[0017] The beneficial technical effects of this utility model are as follows: The ultrasonic testing coupling agent circulation device of this utility model, by setting up a liquid delivery component and an application component, can monitor the application dynamics through a pressure sensor during use. When the pressure reaches a certain value, the pressure sensor will feed back a signal to the microcontroller, automatically activating the booster pump to deliver the coupling agent, so that the coupling agent is delivered from the coupling agent box to the application plate, realizing automatic supply and uniform application of the coupling agent, reducing manual application time, and solving the technical problems of cumbersome application process, low application efficiency, and uneven application in traditional coupling agent application methods; in addition, after the application is completed, the suction pump is activated, and the excess coupling agent is recovered into the collection box through the recovery pipe, thereby realizing the recycling and reuse of the coupling agent. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the ultrasonic testing coupling agent circulation device of this utility model in one direction;

[0019] Figure 2 This is a three-dimensional structural diagram of the ultrasonic testing coupling agent circulation device of this utility model from another direction.

[0020] Figure 3 This is a schematic diagram showing the separation of the coupling agent box and the collection box in the ultrasonic testing coupling agent circulation device of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the coupling agent box in the ultrasonic testing coupling agent circulation device of this utility model;

[0022] Figure 5 This is a schematic diagram of the application component of the ultrasonic testing coupling agent circulation device of this utility model;

[0023] Figure 6 This is a plan view of the bottom structure of the coating plate of the ultrasonic testing coupling agent circulation device of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10-Coupled agent box, 11-Dispensing pipe, 12-Baffle, 13-Reservoir, 14-Controller mounting cavity, 15-Inspection cover, 16-Magnetic suction plate; 20-Applying assembly, 21-Applying pressure plate, 22-Silicone dispensing head, 23-Flexible silicone brush, 24-Ball bearing, 25-T-connector, 26-Support plate, 27-Telescopic tube, 28-Elastic element; 30-Collection box, 31-Suction pump control module, 32-Recovery tube; 40-Heating assembly, 41-Heating plate, 42-Insulating heat-insulating pad, 43-Anti-slip protrusion; 50-Dispensing assembly, 51-Booster pump, 52-Microcontroller, 53-Battery, 54-Guide tube; 60-Elastic band. Detailed Implementation

[0026] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1-6As shown, in one embodiment of this utility model, the ultrasonic testing coupling agent circulation device includes a coupling agent box 10, an application component 20, and a collection box 30; wherein, the coupling agent box 10 is provided with a liquid delivery component 50, the liquid delivery component 50 includes a booster pump 51, a microcontroller 52, and a battery 53, the battery 53 supplies power to the booster pump 51 and the microcontroller 52 respectively, the microcontroller 52 is communicatively connected to the booster pump 51, and the bottom of the coupling agent box 10 is provided with a liquid outlet pipe 11 connected to the liquid outlet end of the booster pump 51; the collection box 30 is fixedly disposed on the front side of the coupling agent box 10, the collection box 30 is provided with a suction pump, the front side of the collection box 30 is provided with a suction pump control module 31, and the bottom of the collection box 30 is provided with a recovery pipe 32 connected to the suction end of the suction pump; the application component 20 includes an application pressure plate 21 and a support plate 26, the working surface of the application pressure plate 21 (i.e., the application pressure plate) is... The bottom surface of the plate is provided with multiple silicone dispensing heads 22. The top of the coating plate 21 is provided with a liquid inlet. The inside of the coating plate 21 is provided with multiple liquid delivery channels that correspond one-to-one with the multiple silicone dispensing heads 22. The multiple liquid delivery channels are connected to the liquid inlet. The top of the support plate 26 is fixedly connected with a three-way connector 25. The upper end of the three-way connector 25 is connected to the dispensing pipe 11, and the middle end of the three-way connector 25 is connected to the recovery pipe 32. The bottom of the support plate 26 is connected with a telescopic pipe 27 that communicates with the three-way connector 25. The lower end of the telescopic pipe 27 is connected to the liquid inlet of the coating plate 21. There are also two elastic elements 28 symmetrically arranged on both sides of the telescopic pipe 27 between the bottom of the support plate 26 and the coating plate 21. The end of the elastic element 28 connected to the support plate 26 is provided with a pressure sensor. The pressure sensor is communicatively connected to the microcontroller 52.

[0028] The ultrasonic testing coupling agent circulation device in this embodiment uses a coupling agent box 10 to store coupling agent and supply it to the entire device. The application plate 21 is pressed against the surface of the workpiece, triggering a pressure sensor that transmits a pressure signal to a microcontroller 52. The microcontroller 52 then activates a booster pump 51, drawing the coupling agent from the box 10. The agent flows through an outlet pipe 11, a three-way connector 25, and into a telescopic pipe 27, finally being evenly applied to the workpiece surface via a silicone outlet head 22. After application, the application plate 21 is released, the pressure sensor detects the pressure loss, and the microcontroller 52 stops the booster pump 51. Simultaneously, a suction pump inside the collection box 30, activated by a suction pump control module 31, collects excess coupling agent through a recovery pipe 32 back into the collection box 30, achieving coupling agent recycling. This system enables automatic supply, cyclic collection, and even application of the coupling agent, improving the accuracy and stability of ultrasonic testing while significantly reducing the tediousness and waste of manual application.

[0029] In this embodiment, the working surface of the coating plate 21 is provided with two flexible silicone brushes 23 symmetrically arranged on both sides of the working surface, and the plurality of silicone dispensing heads 22 are located between the two flexible silicone brushes 23. The outer side of the flexible silicone brushes 23 is provided with a plurality of balls 24, and the balls 24 are protruding from the working surface of the coating plate 21 in a rolling manner.

[0030] The ultrasonic testing coupling agent circulation device in this embodiment features a flexible silicone brush 23. This design not only enhances the uniformity of coupling agent application on the workpiece surface but also provides a cleaning effect during application, removing impurities and residues to ensure the accuracy of ultrasonic testing. The ball bearing 24 allows the flexible silicone brush 23 to move more smoothly during application, reducing resistance and friction and improving application efficiency.

[0031] In this embodiment, the coupling agent box 10 is divided into a liquid storage chamber 13 and a controller mounting chamber 14 by a partition 12. The liquid storage chamber 13 is used to store coupling agent. The booster pump 51 is disposed in the liquid storage chamber 13. The outlet end of the booster pump 51 is fixedly connected to a guide pipe 54. The guide pipe 54 passes through the bottom of the coupling agent box 10 and communicates with the outlet pipe 11. The microcontroller 52 and the battery 53 are installed in the controller mounting chamber 14. A maintenance cover 15 is provided on the side of the coupling agent box 10 near the microcontroller 52 and the battery 53.

[0032] The ultrasonic testing coupling agent circulation device in this embodiment divides the internal cavity of the coupling agent box 10 into two independent spaces by setting a partition 12. The storage chamber 13 stores the coupling agent, while the controller mounting chamber 14 houses electronic components such as the microcontroller 52 and the battery 53. This design not only makes the internal structure of the device more compact but also facilitates the maintenance and repair of the electronic components. The partition 12 is made of waterproof material to prevent coupling agent leakage from damaging the electronic components. The microcontroller 52 receives signals from the pressure sensor and controls the start and stop of the booster pump 51 based on the signals, thereby achieving automatic coupling agent supply. The battery 53 provides power to the entire device, ensuring its portability and battery life. The maintenance cover 15 facilitates the user's inspection and replacement of electronic components such as the microcontroller 52 and the battery 53.

[0033] In this embodiment, the coupling agent box 10 is provided with an elastic band 60. One end of the elastic band 60 is connected to one side of the coupling agent box 10, and the other end of the elastic band 60 passes around the rear side of the coupling agent box 10 and connects to the other side of the coupling agent box 10. The elastic band 60 is a rubber anti-slip elastic band, and the inner side of the elastic band 60 is provided with anti-slip texture. Of course, in other embodiments, a strap can also be used to fix the coupling agent box 10 to the wearer's wrist or arm, or an elastic band without anti-slip texture can be used to fix the coupling agent box 10 to the wearer's wrist or arm.

[0034] The ultrasonic testing coupling agent circulation device in this embodiment features an elastic band 60 on the coupling agent box 10. This not only facilitates the user in securing the device to their wrist or arm but also ensures the stability of the device during use, preventing vibration from affecting the application effect. The anti-slip rubber material of the elastic band 60 enhances stability and comfort during wear and can adapt to wrists or arms of different sizes, ensuring that the coupling agent box 10 will not slip or shift during use. The anti-slip texture design further enhances the friction between the elastic band 60 and the wearer, maintaining a good fixation effect, preventing slippage during testing, and improving the accuracy and stability of the test.

[0035] In this embodiment, a magnetic suction plate 16 is provided on the front side of the coupling agent box 10, and the collection box 30 is attracted to the front side of the coupling agent box 10 by the magnetic suction plate 16. The three-way connector 25 is threadedly connected to the outlet pipe 11 and the recovery pipe 32 respectively. Of course, in other embodiments, the collection box 30 can also be fixed to the front side of the coupling agent box 10 by other different connection methods such as snap-fit ​​connection or screw connection; the three-way connector 25 can also be connected to the outlet pipe 11 and the recovery pipe 32 respectively by other connection methods such as interference fit.

[0036] The ultrasonic testing coupling agent circulation device in this embodiment, by setting up a magnetic suction plate 16 and a three-way connector 25, and threading the three-way connector 25 to the liquid outlet pipe 11 and the recovery pipe 32 respectively, enables quick disassembly and installation of the collection box 30, the coupling agent box 10 and the application pressure plate 21, which facilitates users to clean and maintain the device, and improves the practicality and durability of the device.

[0037] In this embodiment, a heating assembly 40 is provided on the rear side of the coupling agent box 10. The heating assembly 40 includes a heating plate 41 and an insulating heat insulation pad 42. The inner side of the heating plate 41 serves as the heating side and is connected to the liquid storage chamber 13. The outer side of the heating plate 41 is connected to the inner side of the insulating heat insulation pad 42. The outer side of the insulating heat insulation pad 42 is provided with anti-slip protrusions 43.

[0038] In this embodiment, the ultrasonic testing coupling agent circulation device has a heating component 40 located on the rear side of the coupling agent box 10. This component heats the coupling agent in the storage chamber 13, ensuring that the coupling agent maintains a suitable temperature to improve its fluidity and application effect. The heating plate 41 directly heats the coupling agent in the storage chamber 13. During the heating process, the insulating heat-insulating pad 42 isolates the coupling agent from the wearing surface, ensuring both heating effectiveness and avoiding safety hazards caused by high temperatures, thus ensuring the safety of the operator. The anti-slip protrusions 43 further enhance the stability between the wearing surface and the heating component 40, preventing slippage during the testing process, ensuring the smooth progress of the testing, and improving the accuracy and stability of the test.

[0039] In this embodiment, a one-way valve is provided between the liquid outlet pipe 11 and the guide pipe 54, and a one-way valve is provided between the liquid suction end of the suction pump and the recovery pipe 32.

[0040] The ultrasonic testing coupling agent circulation device in this embodiment, by setting two one-way valves, can prevent backflow of the coupling agent during transportation and recycling, ensuring smoother and more efficient recycling of the coupling agent. Under the action of the booster pump, the coupling agent is stably transported from the storage chamber 13 to the application plate 21, and evenly applied to the surface of the workpiece being tested through the silicone dispensing head 22. After testing, excess coupling agent is collected by the suction pump through the recovery pipe 32 and returned to the collection box 30, realizing the recycling of the coupling agent and effectively reducing waste.

[0041] In this embodiment, both the top of the coupling agent box 10 and the collection box 30 are fitted with liquid inlet plugs, and both the sides of the coupling agent box 10 and the collection box 30 are provided with liquid level bars.

[0042] The ultrasonic testing coupling agent circulation device in this embodiment, by setting a liquid inlet plug, allows for convenient addition of coupling agent to the coupling agent box 10 and convenient pouring of coupling agent out of the collection box 30. At the same time, the design of the liquid level bar allows the user to intuitively observe the liquid level in the coupling agent box 10 and the collection box 30, thereby timely replenishing coupling agent to the coupling agent box 10 or cleaning the recycled coupling agent in the collection box 30, ensuring the continuous and stable operation of the device.

[0043] In this embodiment, a power switch is provided on the top of the coupling agent box 10. The power switch is used to connect or disconnect the power supply line between the battery and the booster pump and the microcontroller. The suction pump control module 31 includes a battery and a control switch, and the control switch is connected to the power supply line between the battery and the suction pump.

[0044] In this embodiment, the ultrasonic testing coupling agent circulation device has a power switch on the top of the coupling agent box 10. This switch connects the power supply lines between the battery, booster pump, and microcontroller when coupling agent application is required, and disconnects the power supply lines after application. The suction pump can be directly controlled to turn on and off via the control switch of the suction pump control module 3, making operation more convenient.

[0045] The ultrasonic testing coupling agent circulation device in this embodiment operates on the following principle: During use, the coupling agent box 10 is first placed on the hand using the elastic band 60. During movement and pressing, the application plate 21 contacts the detection surface. A pressure sensor monitors the coating dynamics in real time. When the pressure reaches a certain value, the pressure sensor sends a signal to the microcontroller 52. The microcontroller 52 then controls the booster pump 51 to operate. The booster pump 51 delivers the coupling agent from the reservoir 13 through the guide tube 54 to the outlet tube 11. The agent then passes through the three-way connector 25, the telescopic tube 27, and multiple delivery channels inside the application plate 21 to the silicone outlet head 22 at the bottom of the application plate 21, achieving automatic supply. The coupling agent exiting through the silicone outlet head 22 is coated by the flexible silicone brush 23. The ball bearings 24 on the outer side of the flexible silicone brush 23 assist in the coating process, ensuring the coupling agent smoothly and evenly covers the detection surface. During use, the heating plate 41 can be turned on to heat the coupling agent inside the reservoir 13, ensuring the coupling agent is heated to a suitable temperature. Within the specified temperature range, the problem of poor fluidity due to excessively low temperatures and deterioration of the coupling agent due to excessively high temperatures is avoided, further improving the application effect and detection accuracy of the coupling agent. Simultaneously, the anti-slip protrusions 43 and the anti-slip texture of the elastic band 60 increase the friction between the hand and the coupling agent box 10, and the insulating heat-resistant pad 42 prevents direct contact between the hand and the heating component 10 during the detection process, thus ensuring operator safety. After use, the power switch on the coupling agent box 10 is turned off, and then the suction pump is turned on. During the continuous movement of the application plate 21, the silicone dispensing head 22 draws the coupling agent on the detection surface back into the collection box 30 through the recovery tube 32, achieving cyclic collection of the coupling agent and avoiding waste. Finally, after use, the dispensing tube 11 and the recovery tube 32 are separated from the three-way connector 25, allowing the user to disassemble the collection box 30, the coupling agent box 10, and the application plate 21 for easy cleaning and maintenance, improving the device's practicality.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments. All equivalent changes or modifications made within the scope of the claims should fall within the protection scope of the present utility model.

Claims

1. An ultrasonic testing coupling agent circulation device, characterized in that, include: A coupling agent box is provided with a liquid delivery assembly inside the coupling agent box. The liquid delivery assembly includes a booster pump, a microcontroller and a battery. The battery supplies power to the booster pump and the microcontroller respectively. The microcontroller is communicatively connected to the booster pump. The bottom of the coupling agent box is provided with a liquid outlet pipe that is connected to the liquid outlet end of the booster pump. A collection box is fixedly installed on the front side of the coupling agent box. A suction pump is installed inside the collection box. A suction pump control module is installed on the front side of the collection box. A recovery pipe connected to the suction end of the suction pump is provided at the bottom of the collection box. An application assembly includes an application plate and a support plate. The working surface of the application plate is provided with multiple silicone dispensing heads, and the top of the application plate is provided with a liquid inlet. The interior of the application plate is provided with multiple liquid delivery channels that correspond one-to-one with the silicone dispensing heads and are connected to the liquid inlet. A T-connector is fixedly connected to the top of the support plate. The upper end of the T-connector is connected to the dispensing pipe, and the middle end of the T-connector is connected to the recovery pipe. A telescopic pipe connected to the T-connector is connected to the bottom of the support plate. The lower end of the telescopic pipe is connected to the liquid inlet of the application plate. Two elastic elements symmetrically arranged on both sides of the telescopic pipe are provided between the bottom of the support plate and the application plate. A pressure sensor is provided at the end of the elastic element connected to the support plate. The pressure sensor is communicatively connected to the microcontroller.

2. The ultrasonic testing coupling agent circulation device as described in claim 1, characterized in that, The coupling agent box is divided into a liquid storage chamber and a controller mounting chamber by a partition. The booster pump is located in the liquid storage chamber, and the outlet end of the booster pump is fixedly connected to a guide pipe. The guide pipe passes through the bottom of the coupling agent box and communicates with the outlet pipe. The microcontroller and the battery are installed in the controller mounting chamber.

3. The ultrasonic testing coupling agent circulation device as described in claim 2, characterized in that, The coupling agent box is equipped with a maintenance cover on the side near the microcontroller and the battery.

4. The ultrasonic testing coupling agent circulation device as described in claim 2, characterized in that, A heating assembly is provided on the rear side of the coupling agent box. The heating assembly includes a heating plate and an insulating heat insulation pad. The inner side of the heating plate serves as the heating side and is connected to the liquid storage cavity. The outer side of the heating plate is connected to the inner side of the insulating heat insulation pad. The outer side of the insulating heat insulation pad is provided with anti-slip protrusions.

5. The ultrasonic testing coupling agent circulation device as described in claim 2, characterized in that, A one-way valve is provided between the outlet pipe and the guide pipe, and a one-way valve is provided between the suction end of the suction pump and the recovery pipe.

6. The ultrasonic testing coupling agent circulation device as described in claim 1, characterized in that, A power switch is provided on the top of the coupling agent box. The power switch is used to connect or disconnect the power supply line between the battery and the booster pump and the microcontroller. The suction pump control module includes a battery and a control switch. The control switch is connected to the power supply line between the battery and the suction pump.

7. The ultrasonic testing coupling agent circulation device as described in claim 1, characterized in that, The coupling agent box is provided with an elastic band. One end of the elastic band is connected to one side of the coupling agent box, and the other end of the elastic band goes around the back of the coupling agent box and connects to the other side of the coupling agent box. The elastic band is a rubber anti-slip elastic band, and the inner side of the elastic band is provided with anti-slip texture.

8. The ultrasonic testing coupling agent circulation device as described in claim 1, characterized in that, Both the coupling agent box and the collection box are fitted with liquid inlet plugs on their tops, and both the coupling agent box and the collection box are provided with liquid level bars on their sides.

9. The ultrasonic testing coupling agent circulation device as described in claim 1, characterized in that, The front side of the coupling agent box is provided with a magnetic suction plate, and the collection box is attracted to the front side of the coupling agent box by the magnetic suction plate; the three-way connecting pipe is threadedly connected to the liquid outlet pipe and the recovery pipe respectively.

10. The ultrasonic testing coupling agent circulation device according to any one of claims 1-9, characterized in that, The working surface of the coating plate is provided with two flexible silicone brushes symmetrically arranged on both sides of the working surface. Multiple silicone dispensing heads are located between the two flexible silicone brushes. Multiple ball bearings are provided on the outer side of the flexible silicone brushes, and the ball bearings are protruding from the working surface of the coating plate in a rolling manner.

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