A device for detecting scrub resistance
By using fastening bolts and a fixing plate structure in the scrub resistance testing device, the problem of unstable contact between the brush block and the coating was solved, ensuring the stability of the test and the control of the coating liquid level, thus improving the test results.
Patent Information
- Application Number
- CN202522023156.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-19
AI Technical Summary
In existing scrub resistance testing devices, it is difficult to ensure continuous contact between the brush block and the coating, which may cause the brush block to shift during the testing process and affect the testing results.
The system employs a fastening bolt and fixing plate structure. By applying force to the bolts, the fixing plate moves downward to contact the brush block surface, ensuring the stability of the brush block. A screw and limit rod structure is used to ensure that the liquid level in the paint bucket does not exceed the height of the delivery pipe.
Stable contact of the brush block was achieved, improving the stability and practicality of the detection and avoiding problems such as brush block misalignment and excessively low paint level.
Smart Images
Figure CN224681934U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of architectural coatings, and in particular to a device for testing washability. Background Technology
[0002] The scrub resistance tester is a professional device used to test the scrub resistance of materials such as paints and coatings. It is designed for the cleaning agent industry to conduct scrub resistance tests. This equipment simulates scrubbing actions of varying intensities, allowing test solutions to be directly injected into the sponge material of the friction head to evaluate the material's durability under the action of cleaning agents. It meets multiple international and national standards.
[0003] Currently, when testing brush-resistant coatings, weights need to be added to the brush block to ensure that the lower part of the brush block is in contact with the coating. However, simply applying gravity with weights is not enough to ensure that the brush block and the coating being tested are in continuous contact. This may cause the brush block to shift on the moving seat during the testing process, resulting in an unsatisfactory overall testing effect. Utility Model Content
[0004] To address the problem that applying gravity solely with weights makes it difficult to ensure continuous contact between the brush block and the coating being tested, which could lead to the brush block shifting on the moving seat during testing, this application provides a scrub resistance testing device.
[0005] The washability testing device provided in this application adopts the following technical solution:
[0006] The device includes a base, on which a protective outer frame is mounted. Inside the protective outer frame are two fixed frames. A movable platform is movably mounted on the upper part of the fixed frames on the protective outer frame. A placement slot is provided on the movable platform, and a brush block is provided inside the placement slot. A weight is mounted on the brush block. Fixed plates are mounted on both sides of the placement slot on the movable platform, and fastening bolts are mounted on the fixed plates. Threaded holes that are compatible with the fastening bolts are also provided on the movable platform.
[0007] By adopting the above technical solution, the two fastening bolts are rotated synchronously, which causes the fixing plate to move downward. As the fixing plate moves downward, its lower part gradually contacts the upper surface of the brush block, applying force to the brush block and ensuring the stability of the brush block.
[0008] Preferably, the movable platform has movable slots on both sides of the placement slot, and movable columns are installed at both ends of the lower part of the fixed plate. The diameter of the movable columns is adapted to the width of the movable slots, and the movable columns are movably inserted into the interior of the movable slots.
[0009] By adopting the above technical solution, the fixing plates located on both sides of the placement groove are pushed, so that one side of the fixing plate moves to the upper part of the brush block, at which point the lower part of the fastening bolt corresponds to the threaded hole.
[0010] Preferably, the lower surface of the fixing plate is higher than the upper surface of the brush block.
[0011] By adopting the above technical solution, it is convenient to apply force to the upper surface of the brush block from the lower part of the fixing plate.
[0012] Preferably, studs are installed at both ends of the upper surface of the base, the upper end of the studs extends through both ends of the fixing frame, and the upper part of the studs is connected to a fastening sleeve by a thread, the lower part of the fastening sleeve is attached to both ends of the fixing frame.
[0013] By adopting the above technical solution, the coating layer to be tested is placed inside the protective frame, and then the fixing frame is lowered. The fixing frame is fixed by the fastening sleeves and studs at both ends, so that the lower part of the fixing frame presses down on the coating layer.
[0014] Preferably, a fixing frame is installed on one side of the base, a lifting plate is movably installed on the inner side of the fixing frame, and a placement plate is installed on the lifting plate.
[0015] By adopting the above technical solution, the lifting plate can also drive the placement plate to move upward, thereby moving the paint bucket on the placement plate upward and ensuring that the liquid level of the medium will not be higher than the delivery pipe.
[0016] Preferably, a screw is rotatably mounted in the middle of the fixing frame, and the lower part of the screw passes through the middle of the lifting plate and is threadedly connected to the lifting plate.
[0017] By adopting the above technical solution, when the liquid level of the paint medium inside the paint bucket decreases, the screw can be rotated to drive the lifting plate to move upward, thereby moving the paint bucket upward.
[0018] Preferably, limit rods are installed on both ends of the screw on the fixing frame, and the limit rods pass through both ends of the lifting plate.
[0019] By adopting the above technical solution, the lifting plate can be lifted more smoothly during the upward movement of the lifting plate through the limiting rods on both sides.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. This application involves placing a brush block with weights inside the placement groove, pushing the fixing plates located on both sides of the placement groove, causing one side of the fixing plate to move to the upper part of the brush block. At this time, the lower part of the fastening bolts corresponds to the threaded hole. Then, the two fastening bolts are rotated synchronously, causing the two fastening bolts to move the fixing plate downward. When the fixing plate moves downward, its lower part gradually contacts the upper surface of the brush block, applying force to the brush block and ensuring the stability of the brush block.
[0022] 2. This application uses a screw to rotate, which drives the lifting plate to move upward. During the upward movement of the lifting plate, the limiting rods on both sides ensure that the upward movement of the lifting plate is more stable. The lifting plate can also drive the placement plate to move upward, thereby moving the paint bucket on the placement plate upward, ensuring that the liquid level of the medium will not be higher than the delivery pipe, thus improving the overall practicality. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of a scrub resistance testing device according to an embodiment of this application;
[0024] Figure 2 This is a schematic diagram illustrating the main assembly structure of the base portion in the embodiments of this application;
[0025] Figure 3 This is a schematic diagram illustrating the disassembled structure of the mobile station, which is the main feature of this application embodiment.
[0026] Figure 4 This is a schematic diagram illustrating the main structure of the fixing frame in the embodiments of this application;
[0027] Reference numerals in the attached diagram: 1. Base; 2. Protective outer frame; 3. Fixed frame; 4. Moving platform; 5. Placement slot; 6. Brush block; 7. Weight; 8. Moving slot; 9. Moving column; 10. Fixed plate; 11. Fastening bolt; 12. Stud; 13. Fastening sleeve; 14. Fixed frame; 15. Screw; 16. Lifting plate; 17. Limiting rod; 18. Placement plate; 19. Threaded hole. Detailed Implementation
[0028] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0029] This application discloses a device for testing washability, including a base 1, a protective frame 2 mounted on the base 1, two fixed frames 3 inside the protective frame 2, a movable platform 4 movably mounted on the upper part of the fixed frames 3 on the protective frame 2, a placement groove 5 on the movable platform 4, a brush block 6 inside the placement groove 5, a weight 7 mounted on the brush block 6, fixed plates 10 mounted on both sides of the movable platform 4 at the placement groove 5, fastening bolts 11 mounted on the fixed plates 10, and the movable platform 4 also having a... The threaded hole 19 of the fastening bolt 11 is matched. The brush block 6 with the weight 7 is placed inside the placement groove 5. The fixing plate 10 located on both sides of the placement groove 5 is pushed so that one side of the fixing plate 10 moves to the upper part of the brush block 6. At this time, the lower part of the fastening bolt 11 corresponds to the threaded hole 19. Then, the two fastening bolts 11 are rotated synchronously. The two fastening bolts 11 will cause the fixing plate 10 to move downward. When the fixing plate 10 moves downward, its lower part gradually contacts the upper surface of the brush block 6, applying force to the brush block 6 to ensure the stability of the brush block 6.
[0030] Please refer to Figures 1 to 3 The moving platform 4 has moving slots 8 on both sides of the placement slot 5. The lower ends of the fixed plate 10 are equipped with moving columns 9. The diameter of the moving columns 9 is matched with the width of the moving slots 8. The moving columns 9 are movably inserted into the interior of the moving slots 8. The lower surface of the fixed plate 10 is higher than the upper surface of the brush block 6. Pushing the fixed plates 10 on both sides of the placement slot 5 will move one side of the fixed plate 10 to the upper part of the brush block 6. When the fixed plate 10 moves, it will drive the moving columns 9 to move inside the moving slots 8.
[0031] Please refer to Figure 1 and Figure 2 Studs 12 are installed at both ends of the upper surface of the base 1. The upper end of the stud 12 passes through both ends of the fixed frame 3, and the upper part of the stud 12 is connected to the fastening sleeve 13 by thread. The lower part of the fastening sleeve 13 is attached to both ends of the fixed frame 3. The fastening sleeves 13 at both ends of the fixed frame 3 are removed, the coating layer to be tested is placed inside the protective outer frame 2, and then the fixed frame 3 is lowered. The fixed frame 3 is fixed by the cooperation of the fastening sleeves 13 at both ends and the studs 12, so that the lower part of the fixed frame 3 presses down on the coating layer and fixes the coating layer.
[0032] Please refer to Figure 4 A fixed frame 14 is installed on one side of the base 1. A lifting plate 16 is movably installed on the inner side of the fixed frame 14. A placement plate 18 is installed on the lifting plate 16. A screw 15 is rotatably installed in the middle of the fixed frame 14. The lower part of the screw 15 passes through the middle of the lifting plate 16 and is threadedly connected to the lifting plate 16. Limiting rods 17 are installed on both ends of the screw 15 on the fixed frame 14. The limiting rods 17 pass through both ends of the lifting plate 16. The screw 15 drives the lifting plate 16 to move upward. During the upward movement of the lifting plate 16, the limiting rods 17 on both sides can ensure that the lifting plate 16 moves upward more smoothly. The lifting plate 16 can also drive the placement plate 18 to move upward, so that the paint bucket on the placement plate 18 moves upward, ensuring that the liquid level of the medium will not be higher than the delivery pipe.
[0033] The implementation principle of the washability testing device in this application embodiment is as follows: In use, first lift one end of the moving stage 4, then remove the fastening sleeves 13 at both ends of the fixed frame 3, place the coating layer to be tested inside the protective outer frame 2, and then lower the fixed frame 3. The fixed frame 3 is fixed by the cooperation of the fastening sleeves 13 at both ends and the studs 12, so that the lower part of the fixed frame 3 presses down on the coating layer and fixes the coating layer. At this time, the moving stage 4 is oriented. This lifting and lowering technology of the moving stage 4 is the structure of the existing testing device, which will not be described in detail here. Then, the brush block 6 with the weight 7 is placed inside the placement groove 5, and the fixed plates 10 located on both sides of the placement groove 5 are pushed so that one side of the fixed plate 10 moves to the upper part of the brush block 6. At this time, the lower part of the fastening bolt 11 corresponds to the threaded hole 19. Then, the two fastening bolts 11 are rotated synchronously. The two fastening bolts 11 will cause the fixed plate 10 to move downward. When the fixed plate 10 moves downward, its lower part gradually contacts the upper surface of the brush block 6, applies force to the brush block 6, and ensures the stability of the brush block 6.
[0034] During the testing process, paint needs to be added to the coating layer. At the same time, the height of the paint liquid must not be lower than the height of the delivery pipe. Therefore, when using it, the paint bucket is placed on the placement plate 18. When the liquid level of the paint medium inside the paint bucket decreases, the screw 15 can be rotated. The screw 15 drives the lifting plate 16 to move upward. During the upward movement of the lifting plate 16, the limiting rods 17 on both sides can ensure that the upward movement of the lifting plate 16 is more stable. The lifting plate 16 can also drive the placement plate 18 to move upward, so that the paint bucket on the placement plate 18 moves upward, ensuring that the liquid level of the medium will not be higher than the delivery pipe, thus improving the overall practicality.
[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A device for testing washability, characterized in that: The device includes a base (1), on which a protective outer frame (2) is installed. Inside the protective outer frame (2) are two fixed frames (3). A movable platform (4) is movably installed on the upper part of the fixed frames (3) on the protective outer frame (2). A placement groove (5) is provided on the movable platform (4). A brush block (6) is provided inside the placement groove (5). A weight (7) is installed on the brush block (6). Fixed plates (10) are installed on both sides of the placement groove (5) on the movable platform (4). Fastening bolts (11) are installed on the fixed plates (10). Threaded holes (19) that are compatible with the fastening bolts (11) are also provided on the movable platform (4).
2. The scrub resistance testing device according to claim 1, characterized in that: The movable platform (4) has movable slots (8) on both sides of the placement slot (5). Movable columns (9) are installed at both ends of the lower part of the fixed plate (10). The diameter of the movable column (9) is adapted to the width of the movable slot (8). The movable column (9) is movably inserted into the interior of the movable slot (8).
3. The scrub resistance testing device according to claim 2, characterized in that: The lower surface of the fixing plate (10) is higher than the upper surface of the brush block (6).
4. The scrub resistance testing device according to claim 1, characterized in that: The upper surface of the base (1) is equipped with studs (12) at both ends. The upper end of the studs (12) passes through both ends of the fixing frame (3), and the upper part of the studs (12) is connected to the fastening sleeve (13) by thread. The lower part of the fastening sleeve (13) is attached to both ends of the fixing frame (3).
5. The scrub resistance testing device according to claim 1, characterized in that: A fixing frame (14) is installed on one side of the base (1), and a lifting plate (16) is movably installed on the inner side of the fixing frame (14). A placement plate (18) is installed on the lifting plate (16).
6. The scrub resistance testing device according to claim 5, characterized in that: A screw (15) is rotatably mounted in the middle of the fixed frame (14). The lower part of the screw (15) passes through the middle of the lifting plate (16) and is threadedly connected to the lifting plate (16).
7. The scrub resistance testing device according to claim 6, characterized in that: Limiting rods (17) are installed on both ends of the screw (15) on the fixing frame (14), and the limiting rods (17) pass through both ends of the lifting plate (16).