Building coating multi-working-condition scouring environment simulation test device

Abstract

The utility model discloses a kind of building coating multi-working condition scouring environment simulation test devices, belong to building material detection equipment technical field.The device includes equipment base and the cabin main frame fixed to equipment base, coating sample fixing mechanism, liquid scouring system and environment simulation fan are set in cabin main frame.The coating sample fixing mechanism includes the multi-station sample fixing frame rotated by angle adjusting motor drive;The liquid scouring system includes water suction pump and multiple spray head scouring component, for spraying liquid to the multi-station sample fixing frame;The environment simulation fan is used to blow air current to the multi-station sample fixing frame.The utility model is combined by liquid scouring and wind power simulation, and can automatically adjust sample angle, solve the problem that prior art cannot simulate wind and rain composite working condition, test condition is single, can truly reproduce erosion environment under complex climate, improve the accuracy and degree of automation of test.

Description

Technical Field

[0001] This utility model relates to the technical field of building material testing equipment, and in particular to a multi-condition erosion resistance environment simulation testing device for building coatings. Background Technology

[0002] Building exterior wall coatings, as important materials for protecting and beautifying buildings, are exposed to the natural environment for extended periods, continuously enduring erosion from various climatic factors such as wind, rain, and sun. Among these, rainwater erosion is one of the main causes of coating peeling, chalking, and fading. Therefore, accurate testing and evaluation of erosion resistance are crucial in the research and development and quality control of coatings.

[0003] In existing technologies, erosion resistance testing devices are commonly used to simulate the effects of rainwater on coating samples. These devices typically use a spray system to spray water onto the surface of a fixed coating sample to reproduce the effects of prolonged rainwater erosion in a short period of time, thereby evaluating the adhesion and durability of the coating.

[0004] However, in real-world environments, rain erosion is often accompanied by strong winds. Wind significantly enhances the kinetic energy of raindrops and alters the angle and manner in which rainwater impacts the coating surface, creating a more severe "wind and rain combined" erosion condition. Most existing erosion resistance testing devices focus only on the single effect of water flow erosion, neglecting the synergistic effect of wind, a crucial factor. This leads to significant discrepancies between the simulated environment and real-world conditions, and the test results cannot accurately reflect the true weather resistance performance of coatings under complex climatic conditions.

[0005] Therefore, this utility model proposes a multi-condition erosion resistance environment simulation testing device for architectural coatings to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a multi-condition erosion resistance environment simulation test device for architectural coatings, which aims to improve the problems of existing architectural coating erosion resistance test devices that are difficult to simulate combined wind and rain conditions, cannot conveniently adjust the sample angle, and have a low degree of automation.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a multi-condition erosion resistance environment simulation test device for architectural coatings, comprising: an equipment base, and a main frame of a chamber fixedly connected to the top of the equipment base; further comprising a coating sample fixing mechanism, a liquid erosion system, and an environmental simulation fan disposed within the main frame of the chamber.

[0008] The coating sample fixing mechanism includes an angle adjusting motor, an angle adjusting transmission shaft, a motor fixing flange, and a multi-station sample fixing frame. The angle adjusting motor is fixed on the equipment base, and the output end of the angle adjusting motor is connected to the angle adjusting transmission shaft. The angle adjusting transmission shaft drives the multi-station sample fixing frame to rotate, and the multi-station sample fixing frame is rotatably connected to the main frame of the cabin through a bearing mounting seat.

[0009] Furthermore, the liquid flushing system includes a water storage tank, a water pump, and a multi-nozzle flushing assembly. The water pump pumps the liquid in the water storage tank to the multi-nozzle flushing assembly. The multi-nozzle flushing assembly and the environmental simulation fan are both installed inside the main frame of the cabin, and the spray direction of the multi-nozzle flushing assembly and the air outlet of the environmental simulation fan are both set towards the multi-station sample holder, thereby forming a synergistic effect.

[0010] Preferably, the surface of the multi-station sample holder is provided with a fixing suction cup.

[0011] Preferably, the outlet of the water pump is connected to the multi-nozzle flushing assembly via an output pipe, and a flow regulating valve is installed on the output pipe.

[0012] Preferably, the water pump is fixedly connected to the equipment base via a pump body mounting bracket.

[0013] Preferably, the top of the water storage tank is detachably connected to a tank cover, the outlet of the water storage tank is connected to a liquid outlet pipe, and the liquid outlet pipe is connected to the inlet of the water pump.

[0014] Preferably, the output end of the environmental simulation fan is equipped with fan blades.

[0015] Preferably, a transverse fixing beam is fixedly connected to the outer side of the main frame of the cabin.

[0016] Preferably, one end of the bearing mounting base is fixed to the top of the equipment base, and the other end of the bearing mounting base is fixed to the inner wall of the main frame of the cabin.

[0017] This utility model has the following beneficial effects: 1. This utility model integrates a controllable flow liquid flushing system with an environmental simulation fan, and makes them work together on an adjustable angle coating sample fixing mechanism. This solves the problem that existing testing devices have limited functions and cannot simulate combined wind and rain conditions. It achieves the technical effect of being able to realistically reproduce the harsh environment of wind and rain erosion, thereby comprehensively evaluating the weather resistance performance of coatings.

[0018] 2. This utility model automatically controls the rotation of the coating sample fixing mechanism by setting an angle adjustment mechanism driven by a motor, and uses an environmental simulation fan to dry the sample after the test. This solves the problems of cumbersome manual angle adjustment and low efficiency caused by the separation of testing and drying processes in the prior art. It achieves the technical effect of automatically adjusting the test angle and integrating a rapid drying function, thereby significantly improving the overall testing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main frame of the chamber of a multi-condition erosion resistance simulation testing device for architectural coatings proposed in this utility model. Figure 2 This is a schematic diagram of the equipment base of a multi-condition erosion resistance simulation testing device for architectural coatings proposed in this utility model; Figure 3 This is a schematic diagram of the bearing mounting base of a multi-condition erosion resistance simulation testing device for architectural coatings proposed in this utility model. Figure 4 This is a schematic diagram of the water storage tank of a multi-condition erosion resistance simulation testing device for architectural coatings proposed in this utility model. Figure 5 This is a schematic diagram of the pump body mounting base of a multi-condition erosion resistance simulation testing device for architectural coatings proposed in this utility model.

[0020] Legend: 1. Main frame of the cabin; 101. Transverse fixed beam; 102. Equipment base; 2. Coating sample fixing mechanism; 201. Angle adjustment motor; 202. Motor fixing flange; 203. Angle adjustment transmission shaft; 204. Multi-station sample fixing rack; 205. Fixing suction cup; 206. Bearing mounting seat; 3. Water storage tank; 301. Tank cover; 302. Liquid outlet pipe; 303. Water pump; 304. Flow regulating valve; 305. Pump body fixing seat; 306. Output pipe; 307. Multi-nozzle flushing assembly; 4. Environmental simulation fan; 401. Fan blades. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-5The present invention provides an embodiment of a multi-condition erosion resistance environmental simulation testing device for architectural coatings, comprising an equipment base 102 and a main frame 1 of a chamber fixedly connected to the top of the equipment base 102. The equipment base 102 provides a stable installation foundation for the entire device, and the main frame 1 of the chamber constructs a closed space for environmental simulation testing. A transverse fixing beam 101 is fixedly connected to the outside of the main frame 1 of the chamber, and the transverse fixing beam 101 is used to strengthen the structural strength and stability of the main frame 1 of the chamber.

[0023] The core component of the device is the paint sample fixing mechanism 2, which is installed inside the main frame 1 of the chamber. The paint sample fixing mechanism 2 is used to install and adjust the angle of the material to be tested. The paint sample fixing mechanism 2 includes an angle adjusting motor 201, an angle adjusting drive shaft 203, a motor fixing flange 202, and a multi-station sample fixing frame 204. The angle adjusting motor 201 is fixed to the equipment base 102. The output end of the angle adjusting motor 201 is connected to one end of the angle adjusting drive shaft 203. The other end of the angle adjusting drive shaft 203 passes through the motor fixing flange 202 and is fixedly connected to the multi-station sample fixing frame 204. This transmission... The structure includes an angle-adjustable motor 201 that drives the multi-station sample holder 204 to perform precise angular rotation. The multi-station sample holder 204 is rotatably connected to the main frame 1 of the chamber via a bearing mounting seat 206. One end of the bearing mounting seat 206 is fixed to the top of the equipment base 102, and the other end is fixed to the inner wall of the main frame 1 of the chamber, providing reliable support for the stable rotation of the multi-station sample holder 204. The surface of the multi-station sample holder 204 is also provided with a fixing suction cup 205, which is used to help firmly adsorb the paint sample to be tested onto the multi-station sample holder 204. The liquid flushing system includes a water storage tank 3, a water pump 303, and a multi-nozzle flushing assembly 307. The water storage tank 3 stores the liquid required for testing. A tank cover 301 is detachably connected to the top of the water storage tank 3 for easy addition or replacement of liquid. The outlet of the water storage tank 3 is connected to the inlet of the water pump 303 via an outlet pipe 302, forming a liquid supply path. The water pump 303 is fixedly connected to the equipment base 102 via a pump body mounting base 305, providing power for liquid circulation. The outlet of the water pump 303 is connected to the outlet pipe 307. 6. A multi-nozzle flushing assembly 307 is connected. A flow regulating valve 304 is also installed on the output pipe 306. By adjusting the opening of the flow regulating valve 304, the flow rate of the liquid delivered to the multi-nozzle flushing assembly 307 can be precisely controlled, thereby simulating the flushing of rainfall of different intensities. The multi-nozzle flushing assembly 307 is installed inside the main frame 1 of the chamber and is set towards the multi-station sample holder 204 to ensure that the liquid sprayed from the multi-nozzle flushing assembly 307 can be evenly flushed onto the surface of the test material fixed on the multi-station sample holder 204. To simulate the harsh environment of combined wind and rain, the multi-condition erosion resistance simulation test device for architectural coatings also includes an environmental simulation fan 4. The environmental simulation fan 4 is installed inside the main frame 1 of the chamber, and the air outlet of the environmental simulation fan 4 faces the multi-station sample fixing frame 204, so that while the liquid erosion system is working, the airflow generated by the environmental simulation fan 4 can blow onto the surface of the material to be tested, thereby realizing the simulation test of the combined action of wind and rain. The output end of the environmental simulation fan 4 is equipped with fan blades 401, which are used to efficiently generate a stable airflow.

[0024] In one specific implementation, the main frame 1 of the cabin is constructed of robust profiles, providing a stable installation environment for all internal components, and the wall panels of the main frame 1 can be made of transparent materials to facilitate external observation of the internal testing process.

[0025] In another specific implementation, the angle adjustment motor 201 is a stepper motor or a servo motor, which can achieve high-precision control of the rotation angle of the multi-station sample holder 204, thereby accurately simulating the application scenarios of the coating on different inclined surfaces of the building.

[0026] As a preferred structure, the pump body mounting base 305 is equipped with a shock-absorbing pad to absorb the vibration generated when the water pump 303 is working, ensuring the stability of the entire device operation.

[0027] In addition, multiple replaceable nozzles can be evenly distributed on the multi-nozzle flushing assembly 307. By replacing nozzles with different orifice diameters or spray angles, the simulation of different raindrop sizes and shapes can be further refined.

[0028] Working principle: Before testing, the paint sample to be tested is first installed on the multi-station sample holder 204 by the fixed suction cup 205. Then, the test parameters, such as the rinsing angle, rinsing flow rate and wind speed, are set by the external control system.

[0029] When the test begins, the angle adjustment motor 201 starts and drives the multi-station sample holder 204 to rotate to the preset angle through the angle adjustment transmission shaft 203.

[0030] After the angle is positioned, the water pump 303 starts to work, pumping the liquid in the water storage tank 3 to the multi-nozzle flushing assembly 307 through the liquid outlet pipe 302 and the output pipe 306. The liquid is evenly sprayed onto the surface of the paint sample to be tested through the multi-nozzle flushing assembly 307, forming a simulated rainfall flushing. At the same time, the flushing intensity can be controlled by adjusting the flow regulating valve 304 on the output pipe 306.

[0031] If it is necessary to simulate the combined wind and rain conditions, the environmental simulation fan 4 and the water pump 303 are started synchronously. The airflow generated by the environmental simulation fan 4 is blown onto the surface of the coating sample through the fan blades 401, and works together with the liquid scouring to simulate the wind and rain erosion environment in real nature.

[0032] After the test is completed, the water pump 303 and the environmental simulation fan 4 stop working. The angle adjustment motor 201 can drive the multi-station sample holder 204 to flip to an angle that facilitates drying, such as vertical or inverted. Then the environmental simulation fan 4 is restarted to use the airflow it generates to quickly dry the sample surface, in preparation for subsequent observation and performance evaluation.

Claims

1. A multi-condition erosion resistance environment simulation test device for architectural coatings, comprising an equipment base (102) and a main frame (1) of a chamber fixedly connected to the top of the equipment base (102). Its features are, Also includes: The coating sample fixing mechanism (2) includes an angle adjusting motor (201), an angle adjusting transmission shaft (203), a motor fixing flange (202), and a multi-station sample fixing frame (204). The angle adjustment motor (201) is fixed on the equipment base (102). The output end of the angle adjustment motor (201) is connected to one end of the angle adjustment transmission shaft (203). The other end of the angle adjustment transmission shaft (203) passes through the motor fixing flange (202) and is fixedly connected to the multi-station sample fixing frame (204). The multi-station sample holder (204) is rotatably connected to the main frame (1) of the cabin via a bearing mounting seat (206); A liquid flushing system, comprising a water storage tank (3), a water pump (303), and a multi-nozzle flushing assembly (307). The outlet of the water storage tank (3) is connected to the inlet of the water pump (303), and the outlet of the water pump (303) is connected to the multi-nozzle flushing assembly (307). The multi-nozzle flushing assembly (307) is installed inside the main frame of the cabin (1) and is positioned toward the multi-station sample holder (204). An environmental simulation fan (4) is installed inside the main frame (1) of the cabin, and the air outlet of the environmental simulation fan (4) faces the multi-station sample fixing frame (204).

2. The multi-condition erosion resistance simulation testing device for architectural coatings according to claim 1, characterized in that, The surface of the multi-station sample holder (204) is provided with a fixing suction cup (205) for assisting in fixing the material to be tested.

3. The multi-condition erosion resistance simulation testing device for architectural coatings according to claim 1, characterized in that, The outlet of the water pump (303) is connected to the multi-nozzle flushing assembly (307) via an output pipe (306), and a flow regulating valve (304) is installed on the output pipe (306).

4. The multi-condition erosion resistance simulation testing device for architectural coatings according to claim 1, characterized in that, The water pump (303) is fixedly connected to the equipment base (102) via a pump body fixing seat (305).

5. The multi-condition erosion resistance simulation testing device for architectural coatings according to claim 1, characterized in that, The top of the water storage tank (3) is detachably connected to a tank cover (301), and the outlet of the water storage tank (3) is connected to a liquid outlet pipe (302), which is connected to the inlet of the water pump (303).

6. The multi-condition erosion resistance simulation testing device for architectural coatings according to claim 1, characterized in that, The output end of the environmental simulation fan (4) is equipped with fan blades (401).

7. The multi-condition erosion resistance simulation testing device for architectural coatings according to claim 1, characterized in that, The outer side of the main frame (1) of the cabin is fixedly connected to a transverse fixing beam (101) for strengthening the structural strength of the main frame (1).

8. The multi-condition erosion resistance simulation testing device for architectural coatings according to claim 1, characterized in that, One end of the bearing mounting base (206) is fixed to the top of the equipment base (102), and the other end of the bearing mounting base (206) is fixed to the inner wall of the main frame (1) of the cabin.

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