A couplant application device for steel structure weld detection
By designing an adjustable coating head and using rapid drying technology, the problems of poor adaptability and long drying time of traditional coating devices have been solved, enabling efficient and accurate detection of steel structure welds.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中汽建工(洛阳)检测有限公司
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional coating devices have a fixed coating head position, which makes it difficult to adapt to steel structure welds of different specifications and orientations. This results in uneven coating of the coupling agent, affecting the detection effect. Furthermore, the coating requires waiting for natural drying, which reduces the detection efficiency.
A coupling agent coating device was designed, comprising a base, a fixed frame, a liquid storage tank, an adjusting cylinder, a hydraulic rod, a mounting plate, a delivery pipe, and an adjusting mechanism. The device achieves position adjustment and movement of the coating head through the cooperation of a screw, a drive motor, a linear motor, and a sliding seat. Combined with a fan, a heating pipe, and a temperature sensor, it enables rapid drying of the coupling agent.
It achieves uniform coating and rapid drying of the coupling agent on the weld surface, improving the accuracy and efficiency of inspection, adapting to steel structure welds of different specifications and orientations, and reducing waiting time.
Smart Images

Figure CN224308829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure engineering technology, specifically to a coupling agent coating device for steel structure weld inspection. Background Technology
[0002] In the field of steel structure engineering, the quality of welds is directly related to the safety and reliability of the entire structure. In order to accurately detect whether there are defects inside the welds of steel structures, such as cracks, porosity, slag inclusions, etc., non-destructive testing methods such as ultrasonic testing are usually used. In these testing processes, the coupling agent plays a crucial role. It can fill the air gap between the test probe and the weld surface, ensuring that the ultrasonic signal can be effectively transmitted from the probe to the weld being tested, thereby obtaining accurate test results.
[0003] Traditional coating devices have fixed coating heads, making it difficult to adapt to steel structure welds of different specifications and orientations. This results in uneven couplant coating, affecting the detection effect. Furthermore, after the couplant is coated, it usually needs to dry naturally, which is not only time-consuming and reduces detection efficiency, but also may be interfered with in humid environments, further affecting the performance of the couplant and the accuracy of the detection. To solve these technical problems, it is necessary to design a couplant coating device for steel structure weld detection. Utility Model Content
[0004] The purpose of this invention is to provide a coupling agent coating device for steel structure weld inspection. It has the advantages of adjustable coating head position according to the specific location of the steel structure weld, ensuring that the coupling agent can be uniformly and accurately coated on the weld surface, and rapid drying of the coupling agent coated on the weld surface. It solves the problems of fixed coating head position, difficulty in adapting to steel structure welds of different specifications and orientations, and the need to wait for the coupling agent to dry naturally after coating, which reduces the inspection efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coupling agent coating device for steel structure weld inspection, comprising a device base, a fixed frame movably disposed on the surface of the device base, a liquid storage tank fixedly connected to the surface of the fixed frame, an adjusting cylinder penetrating the surface of the liquid storage tank, a pusher plate fixedly connected to one end of the adjusting cylinder, a hydraulic rod penetrating the surface of the fixed frame, an installation plate fixedly connected to one end of the hydraulic rod, a conveying pipe disposed on the surface of the installation plate, an adjusting mechanism disposed on the surface of the installation plate, the adjusting mechanism comprising a screw, both ends of the screw being rotatably connected to the inner wall of the installation plate, a drive motor fixedly connected to the surface of the installation plate, the shaft of the drive motor penetrating the installation plate and fixedly connected to one end of the screw, a support sleeve threadedly fitted onto the surface of the screw, the support sleeve being fixedly connected to the conveying pipe, and a telescopic connecting pipe connecting the conveying pipe and the liquid storage tank.
[0006] Preferably, a linear motor is fixedly connected to the surface of the device base, a sliding seat is movably sleeved on the surface of the linear motor, the fixed frame is fixedly connected to the surface of the sliding seat, an electric telescopic rod is provided through the surface of the device base, and a clamping plate is fixedly connected to one end of the electric telescopic rod.
[0007] Preferably, a roller is rotatably connected to the inner wall of the mounting plate, and a feeding pipe is connected to the surface of the liquid storage tank.
[0008] Preferably, a bearing is provided at the connection between the drive motor shaft and the inner wall of the mounting plate, the outer ring of the bearing is fixedly connected to the inner wall of the mounting plate, and the inner ring of the bearing is sleeved on the surface of the drive motor shaft.
[0009] Preferably, a frame is fixedly connected to the surface of the mounting plate, a fan and a heating pipe are fixedly connected to the inner cavity of the frame, a dust removal screen is embedded in the surface of the frame, an air outlet hood is fixedly connected to the inner wall of the mounting plate, and a telescopic hose connects the air outlet hood and the frame.
[0010] Preferably, one end of the telescopic hose passes through the mounting plate and the fixing frame respectively and makes movable contact with the inner wall of the mounting plate and the fixing frame, and a temperature sensor is fixedly installed on the inner wall of the frame.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model utilizes the cooperation of a screw, drive motor, support sleeve, telescopic connecting pipe, linear motor, sliding seat, electric telescopic rod, and clamping plate to enable the delivery pipe to adjust its position along the screw trajectory. This design allows the delivery pipe to be adjusted according to the specific location and direction of the steel structure weld, ensuring that the coupling agent can be uniformly and accurately coated on the weld surface. The linear motor and sliding seat can drive the fixed frame and the entire coating device to move horizontally, further expanding the coating range, adapting to the inspection needs of welds of different lengths and positions, and improving the accuracy and reliability of the inspection.
[0013] 2. This utility model utilizes a combination of a frame, a fan, a heating element, a dust removal screen, an air outlet hood, a telescopic hose, and a temperature sensor. It employs a hot air drying technology where the fan blows through the heating element. After the coupling agent is coated, it is quickly dried, allowing the coupling agent to rapidly form a uniform film and reducing waiting time. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0015] Figure 2 This is a rear-view perspective view of the present invention;
[0016] Figure 3 This is a partial cross-sectional view of the rear of the present invention;
[0017] Figure 4 This is a partial sectional view of the front of this utility model.
[0018] In the diagram: 1. Device base; 2. Fixing frame; 3. Liquid storage tank; 4. Adjusting cylinder; 5. Pusher plate; 6. Hydraulic rod; 7. Mounting plate; 8. Conveying pipe; 9. Adjusting mechanism; 91. Screw; 92. Drive motor; 93. Support sleeve; 94. Telescopic connecting pipe; 95. Linear motor; 96. Sliding seat; 10. Electric telescopic rod; 11. Clamping plate; 12. Circular roller; 13. Feeding pipe; 14. Frame; 15. Fan; 16. Heating pipe; 17. Dust removal screen; 18. Air outlet hood; 19. Telescopic hose; 20. Temperature sensor. Detailed Implementation
[0019] Please see Figures 1-4A coupling agent coating device for inspecting weld seams in steel structures includes a base 1, a fixed frame 2 movably mounted on the surface of the base 1, a liquid storage tank 3 fixedly connected to the surface of the fixed frame 2, an adjusting cylinder 4 penetrating the surface of the liquid storage tank 3, a pusher plate 5 fixedly connected to one end of the adjusting cylinder 4, a hydraulic rod 6 penetrating the surface of the fixed frame 2, an mounting plate 7 fixedly connected to one end of the hydraulic rod 6, a conveying pipe 8 mounted on the surface of the mounting plate 7, and an adjusting mechanism 9 mounted on the surface of the mounting plate 7. The adjusting mechanism 9 includes a screw 91, both ends of which are rotatably connected to the inner wall of the mounting plate 7. A drive motor 92 is fixedly connected to the surface of the mounting plate 7, the shaft of the drive motor 92 penetrates the mounting plate 7 and is fixedly connected to one end of the screw 91, a support sleeve 93 is threaded onto the surface of the screw 91, the support sleeve 93 is fixedly connected to the conveying pipe 8, and a telescopic connecting pipe 94 connects the conveying pipe 8 and the liquid storage tank 3.
[0020] Please see Figure 1 A linear motor 95 is fixedly connected to the surface of the device base 1. A sliding seat 96 is movably fitted onto the surface of the linear motor 95. The fixed frame 2 is fixedly connected to the surface of the sliding seat 96. An electric telescopic rod 10 is provided through the surface of the device base 1. A clamping plate 11 is fixedly connected to one end of the electric telescopic rod 10. By setting the sliding seat 96, a stable support platform is provided, enabling the fixed frame 2 to flexibly bear loads and adjust its position.
[0021] Please see Figure 1 and Figure 2 The inner wall of the mounting plate 7 is rotatably connected to a roller 12, and the surface of the liquid storage tank 3 is connected to a feeding pipe 13. By setting the feeding pipe 13, the liquid can be efficiently introduced to meet the equipment replenishment needs.
[0022] Please see Figure 4 A bearing is provided at the connection between the shaft of the drive motor 92 and the inner wall of the mounting plate 7. The outer ring of the bearing is fixedly connected to the inner wall of the mounting plate 7, and the inner ring of the bearing is sleeved on the surface of the shaft of the drive motor 92. By setting the bearing, the shaft of the drive motor 92 is supported, and the friction and wear between the shaft and the inner wall of the mounting plate 7 during the movement are reduced.
[0023] Please see Figure 1 and Figure 3 A frame 14 is fixedly connected to the surface of the mounting plate 7. A fan 15 and a heating pipe 16 are fixedly connected to the inner cavity of the frame 14. A dust removal net 17 is embedded in the surface of the frame 14. An air outlet hood 18 is fixedly connected to the inner wall of the mounting plate 7. A telescopic hose 19 connects the air outlet hood 18 and the frame 14. By setting the frame 14, a stable support is provided for the structure of the fan 15 and the heating pipe 16, the intrusion of external media is isolated, and the internal environment is kept stable and the function is safe.
[0024] Please see Figure 2 and Figure 3 One end of the telescopic hose 19 passes through the mounting plate 7 and the fixing frame 2 respectively and makes movable contact with the inner wall of the mounting plate 7 and the fixing frame 2. A temperature sensor 20 is fixedly installed on the inner wall of the frame 14. By setting the mounting plate 7, the bottom of the hydraulic rod 6 is supported, ensuring the overall structure of the conveying pipe 8, the roller 12 and the air hood 18 is safe and stable, and making the conveying pipe 8 stable.
[0025] In use, the steel structure is placed on top of the device base 1. The electric telescopic rod 10 is extended and retracted via an external controller, causing the clamping plate 11 to move towards the steel structure, thus clamping it and fixing steel structures of different sizes. The linear motor 95 is started, causing the sliding seat 96 to move the fixing frame 2 and the entire coating device horizontally, further expanding the coating area. The drive motor 92 is started, causing the screw 91 to rotate, which in turn causes the support sleeve 93 to move on the surface of the screw 91, thereby adjusting the position of the conveying pipe 8 to accommodate steel structure welds of various orientations. The hydraulic rod 6 is extended and retracted, causing the mounting plate 7 to move downwards. The mounting plate 7 then moves the conveying pipe 8 and the circular roller 1... 2. Move downwards and activate the extension and retraction of the regulating cylinder 4 to push the pusher plate 5 to move within the liquid storage tank 3. The coupling agent is coated onto the steel structure surface sequentially through the telescopic connecting pipe 94 and the conveying pipe 8. The roller 12 moves downwards to contact the surface of the steel structure and rolls the coupling agent to make it spread evenly on the steel structure. After the coupling agent coating is completed, the fan 15 and the heating pipe 16 are activated respectively. The hot air generated by the heating pipe 16 can be delivered to the air outlet hood 18 through the telescopic hose 19 to quickly dry the coupling agent coated on the weld surface. The temperature sensor 20 can monitor the temperature of the hot air in real time to ensure that the drying process is carried out within a suitable temperature range and to avoid adverse effects on the performance of the coupling agent due to excessively high or low temperatures.
[0026] In summary, this coupling agent coating device for steel structure weld inspection solves the problems of fixed coating head position, difficulty in adapting to steel structure welds of different specifications and orientations, and the need to wait for the coupling agent to dry naturally after coating, which reduces inspection efficiency, through the cooperation of device base 1, fixing frame 2, liquid storage tank 3, adjusting cylinder 4, push plate 5, hydraulic rod 6, mounting plate 7, delivery pipe 8 and adjusting mechanism 9.
Claims
1. A coupling agent coating device for inspecting weld seams in steel structures, comprising a device base (1), characterized in that: A fixed frame (2) is movably mounted on the surface of the device base (1). A liquid storage tank (3) is fixedly connected to the surface of the fixed frame (2). An adjusting cylinder (4) is installed through the surface of the liquid storage tank (3). A pusher plate (5) is fixedly connected to one end of the adjusting cylinder (4). A hydraulic rod (6) is installed through the surface of the fixed frame (2). A mounting plate (7) is fixedly connected to one end of the hydraulic rod (6). A conveying pipe (8) is installed on the surface of the mounting plate (7). An adjusting mechanism (9) is installed on the surface of the mounting plate (7). The adjusting mechanism (9) includes a screw (91), both ends of which are rotatably connected to the inner wall of the mounting plate (7). A drive motor (92) is fixedly connected to the surface of the mounting plate (7). The shaft of the drive motor (92) passes through the mounting plate (7) and is fixedly connected to one end of the screw (91). A support sleeve (93) is threaded on the surface of the screw (91). The support sleeve (93) is fixedly connected to the delivery pipe (8). A telescopic connecting pipe (94) connects the delivery pipe (8) and the storage tank (3).
2. The coupling agent coating device for inspecting weld seams in steel structures according to claim 1, characterized in that: A linear motor (95) is fixedly connected to the surface of the device base (1). A sliding seat (96) is movably sleeved on the surface of the linear motor (95). The fixed frame (2) is fixedly connected to the surface of the sliding seat (96). An electric telescopic rod (10) is provided through the surface of the device base (1). A clamp (11) is fixedly connected to one end of the electric telescopic rod (10).
3. The coupling agent coating device for inspecting weld seams in steel structures according to claim 1, characterized in that: The inner wall of the mounting plate (7) is rotatably connected to a roller (12), and the surface of the liquid storage tank (3) is connected to a feeding pipe (13).
4. The coupling agent coating device for inspecting weld seams in steel structures according to claim 1, characterized in that: A bearing is provided at the connection between the shaft of the drive motor (92) and the inner wall of the mounting plate (7). The outer ring of the bearing is fixedly connected to the inner wall of the mounting plate (7), and the inner ring of the bearing is sleeved on the surface of the shaft of the drive motor (92).
5. A coupling agent coating device for inspecting weld seams in steel structures according to claim 1, characterized in that: A frame (14) is fixedly connected to the surface of the mounting plate (7). A fan (15) and a heating pipe (16) are fixedly connected to the inner cavity of the frame (14). A dust removal net (17) is embedded in the surface of the frame (14). An air outlet hood (18) is fixedly connected to the inner wall of the mounting plate (7). A telescopic hose (19) is connected between the air outlet hood (18) and the frame (14).
6. A coupling agent coating device for inspecting weld seams in steel structures according to claim 5, characterized in that: One end of the telescopic hose (19) passes through the mounting plate (7) and the fixing frame (2) respectively and makes movable contact with the inner wall of the mounting plate (7) and the fixing frame (2). A temperature sensor (20) is fixedly installed on the inner wall of the frame (14).