A device for detecting the viscosity of an environmentally friendly paint
By incorporating cleaning and auxiliary cotton into the environmentally friendly coating viscosity testing device, and combining it with an automatic cleaning mechanism consisting of clamps and elastic balls, the problems of cumbersome rotor replacement and residual coating affecting the testing have been solved, achieving efficient and accurate viscosity testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG TUBAINIAN NEW MATERIAL CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-24
Smart Images

Figure CN224553000U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of testing devices, specifically an environmentally friendly coating viscosity testing device. Background Technology
[0002] Viscometers are commonly used to test the viscosity of environmentally friendly coatings. The working principle of a rotational viscometer is based on Newton's law of internal friction. When a rotor rotates within the coating at a certain angular velocity, the coating generates a viscous resistance torque on the rotor. According to Newton's law of internal friction, this torque is related to factors such as the coating's viscosity, the rotor's shape and size, the rotational speed, and the contact area between the rotor and the coating. By measuring the magnitude of the torque acting on the rotor and combining it with known rotor parameters and rotational speed, the coating's viscosity can be calculated. The specific calculation formula may vary depending on the model and design of the rotational viscometer, but the basic principle is the same: measuring the relationship between torque and viscosity.
[0003] After a viscometer has completed testing an environmentally friendly coating, the rotor needs to be cleaned or replaced promptly before testing the next batch of coating. Because rotor replacement is cumbersome, testing multiple batches of coating requires a large number of rotors, thus affecting testing efficiency. Continuing to use a used rotor will cause residual coating on its surface to mix with the coating to be tested, affecting the accuracy of the test.
[0004] Therefore, this utility model provides an environmentally friendly coating viscosity testing device. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The environmentally friendly coating viscosity testing device of this utility model includes a viscosity meter, on which a rotor is installed, and on which a loading cup for loading coating is placed; a connecting rod is fixedly installed on one side of the viscosity meter, and a fixing ring is fixedly installed at one end of the connecting rod; the fixing ring and the rotor are on the same vertical line; a plurality of sliding rods are slidably connected inside the fixing ring; an arc-shaped clamp is fixedly installed at one end of the sliding rod; a cleaning cotton is fixedly installed on the side of the clamp away from the sliding rod; and a spring is fixedly installed between the clamp and the fixing ring.
[0007] Furthermore, auxiliary plates are slidably connected to both sides of the clamping plate, and auxiliary cotton is fixedly installed on one side of the auxiliary plates.
[0008] Furthermore, a rectangular box is fixedly installed on one side of the viscometer, and a cleaning agent is pre-stored inside the rectangular box. A hollow elastic ball is fixedly installed between the clamp and the fixing ring. A liquid guide tube with a one-way valve is fixedly installed between the elastic ball and the rectangular box. The elastic ball and the cleaning cotton are connected by a connecting pipe with a one-way valve.
[0009] Furthermore, guide plates are fixedly installed at the bottom and top of the clamping plate, and the arc-shaped surface of the guide plate is connected to a guide post made of flexible material.
[0010] Furthermore, an electric actuator is fixedly mounted on one side of the viscometer, and a storage box is fixedly mounted on the output end of the electric actuator.
[0011] Furthermore, a multi-stage telescopic plate is fixedly installed between the viscometer and the storage box. The multi-stage telescopic plate is composed of several hollow plates that are sealed and slidably connected. An air inlet pipe with a one-way valve is fixedly installed at the bottom of the multi-stage telescopic plate, and an air outlet pipe with a one-way valve is fixedly installed at the top of the multi-stage telescopic plate. The end of the air outlet pipe away from the multi-stage telescopic plate is aligned with the rotor.
[0012] The beneficial effects of this utility model are as follows: 1. The environmentally friendly coating viscosity testing device of this utility model, after the rotor rises, contacts the guide plate and guide column at the bottom of the clamping plates, thereby increasing the gap between several clamping plates and adapting to rotors of different types. As the rotor continues to move upward, it will be positioned between several clamping plates and cleaning cotton, ensuring that the cleaning cotton and auxiliary cotton are always in contact with the rotor surface. After the clamping plates move, they squeeze the elastic ball, allowing the cleaning agent inside the elastic ball to enter the cleaning cotton through the connecting pipe, thereby assisting in wiping away residual coating on the rotor surface. The designed mechanism achieves rapid cleaning of residual coating on the rotor surface and can adapt to rotors of different types. While achieving efficient use of the rotor, it can also be widely promoted and used, making its application range wider, and eliminating the need to replace the rotor, thereby improving the working efficiency during testing.
[0013] 2. The environmentally friendly coating viscosity testing device of this utility model synchronously activates an electric push rod as the rotor moves upward, causing the output end of the electric push rod to move the storage box downward along with the rotor. This allows the cleaning agent produced after the rotor squeezes the cleaning cotton and auxiliary cotton to drip into the storage box, preventing the squeezed-out cleaning agent from dripping onto the viscometer's worktable and affecting the subsequent placement of the loading cup. After the rotor returns to its original position, the storage box also returns to its original position under the action of the electric push rod. Because the storage box initially stretches along with the multi-stage telescopic plates, drawing in external gas, and then compresses the multi-stage telescopic plates as the storage box returns to its original position, the gas inside the plates is sprayed towards the rotor through the exhaust pipe, assisting the rotor in rapid drying and facilitating subsequent coating testing. Furthermore, the installed multi-stage telescopic plates assist the movement of the storage box, effectively preventing bending when the storage box is too heavy. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings.
[0015] Figure 1 This is a three-dimensional structural diagram of the viscosity meter in this utility model; Figure 2 This is a schematic diagram of the structure of the cup loading area in this utility model; Figure 3 This is a structural schematic diagram of the rectangular box in this utility model; Figure 4 This is a schematic diagram of the structure of the fixing ring in this utility model; Figure 5 This is a bottom view of the clamping plate in this utility model; Figure 6 This utility model Figure 2 A schematic diagram of the structure at point A.
[0016] In the diagram: 1. Viscometer; 2. Rotor; 3. Loading cup; 4. Connecting rod; 5. Fixing ring; 6. Slide rod; 7. Clamping plate; 8. Cleaning cotton; 9. Auxiliary plate; 10. Auxiliary cotton; 11. Rectangular box; 12. Elastic ball; 13. Liquid guide tube; 14. Guide plate; 15. Guide column; 16. Electric push rod; 17. Storage box; 18. Multi-stage telescopic plate; 19. Air outlet pipe; 20. Air inlet pipe. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0018] like Figures 1 to 6As shown in the embodiment of this utility model, an environmentally friendly coating viscosity testing device includes a viscosity meter 1, a rotor 2 mounted on the viscosity meter 1, and a loading cup 3 for loading coating placed on the viscosity meter 1. A connecting rod 4 is fixedly mounted on one side of the viscosity meter 1, and a fixing ring 5 is fixedly mounted on one end of the connecting rod 4. The fixing ring 5 and the rotor 2 are on the same vertical line. Several sliding rods 6 are slidably connected inside the fixing ring 5. An arc-shaped clamping plate 7 is fixedly mounted on one end of the sliding rod 6. A cleaning cotton 8 is fixedly mounted on the side of the clamping plate 7 away from the sliding rod 6. A spring is fixedly mounted between the clamping plate 7 and the fixing ring 5.
[0019] Specifically, auxiliary plates 9 are slidably connected to both sides of the clamping plate 7, and auxiliary cotton 10 is fixedly installed on one side of the auxiliary plates 9. A rectangular box 11 is fixedly installed on one side of the viscometer 1, and the rectangular box 11 is pre-filled with cleaning agent. A hollow elastic ball 12 is fixedly installed between the clamping plate 7 and the fixing ring 5. A liquid guide tube 13 with a one-way valve is fixedly installed between the elastic ball 12 and the rectangular box 11. The elastic ball 12 and the cleaning cotton 8 are connected by a connecting tube with a one-way valve. Guide plates 14 are fixedly installed at the bottom and top of the clamping plate 7, and guide posts 15 made of flexible material are rotatably connected to the arc-shaped surface of the guide plates 14.
[0020] During operation, after the rotor 2 of the viscometer 1 finishes coating the paint in the loading cup 3, it rises and leaves the loading cup 3, but some paint remains on its surface. After rising, the rotor 2 contacts the guide plate 14 and guide post 15 at the bottom of the clamping plate 7. Several guide plates 14 and guide posts 15 spread the clamping plates 7 apart. The clamping plates 7 slide via the slide rod 6 and compress the spring, increasing the gap between the clamping plates 7 to accommodate rotors of different sizes. As the rotor 2 continues to rise, it will be positioned between the clamping plates 7 and the cleaning cotton 8. After the clamping plates 7 move, a gap will appear between the sides of two clamping plates 7. At this time, the auxiliary plate 9 and auxiliary cotton 10 move under the action of the elastic element, closing the gap between the two clamping plates 7, ensuring that the cleaning cotton 8 and auxiliary cotton 10 are always in contact with the surface of the rotor 2.
[0021] After the clamping plates 7 move, they squeeze the elastic balls 12, causing the cleaning agent inside the elastic balls 12 to enter the cleaning cotton 8 through the connecting tube, thereby helping to wipe away the residual paint on the surface of the rotor 2. After the rotor 2 leaves between the clamping plates 7, the clamping plates 7 return to their original position under the action of the spring and no longer squeeze the elastic balls 12. The elastic balls 12 draw in the cleaning agent in the rectangular box 11 through the liquid guide tube 13, thus preparing for the next cleaning.
[0022] The mechanism designed above enables rapid cleaning of residual paint on the surface of rotor 2 and can be adapted to rotors 2 of different types. While achieving efficient utilization of the rotor, it can also be widely promoted and used, making its application range wider, and eliminating the need to replace rotor 2, thereby improving work efficiency during testing.
[0023] An electric actuator 16 is fixedly mounted on one side of the viscometer 1, and a storage box 17 is fixedly mounted on the output end of the electric actuator 16. A multi-stage telescopic plate 18 is fixedly mounted between the viscometer 1 and the storage box 17. The multi-stage telescopic plate 18 is composed of several hollow plates that are sealed and slidably connected. An air inlet pipe 20 with a one-way valve is fixedly mounted on the bottom of the multi-stage telescopic plate 18, and an air outlet pipe 19 with a one-way valve is fixedly mounted on the top of the multi-stage telescopic plate 18. The end of the air outlet pipe 19 away from the multi-stage telescopic plate 18 is aligned with the rotor 2.
[0024] During operation, as rotor 2 moves upward, the electric push rod 16 is activated simultaneously. The output end of the electric push rod 16 moves the storage box 17 downward along with rotor 2, allowing the cleaning agent produced by rotor 2 squeezing the cleaning cotton 8 and auxiliary cotton 10 to drip into the storage box 17. This prevents the squeezed-out cleaning agent from dripping onto the viscometer 1's worktable, thus avoiding interference with the subsequent placement of the loading cup 3. After rotor 2 returns to its original position, the storage box 17 also returns to its original position under the action of the electric push rod 16. Since the storage box 17 initially stretches the multi-stage telescopic plate 18, drawing in external gas, and then, as the storage box 17 returns to its original position, it squeezes the multi-stage telescopic plate 18, causing the gas inside to be sprayed towards rotor 2 through the exhaust pipe 19. This assists rotor 2 in rapid drying, facilitating subsequent coating testing. Furthermore, the installed multi-stage telescopic plate 18 assists in the movement of the storage box 17, effectively preventing bending when the storage box 17 is too heavy.
[0025] Working principle: After the rotor 2 rises, it contacts the guide plate 14 and guide post 15 at the bottom of the clamping plate 7. Several guide plates 14 and guide posts 15 spread the clamping plates 7 apart. The clamping plates 7 slide via the slide rod 6 and compress the spring, thereby increasing the gap between the clamping plates 7 to accommodate rotors 2 of different sizes. As the rotor 2 continues to move upwards, it will be positioned between the clamping plates 7 and the cleaning cotton 8. After the clamping plates 7 move, a gap will appear between the sides of two clamping plates 7. At this time, the auxiliary plate 9 and auxiliary cotton 10 move under the action of the elastic element, thereby closing the gap between the two clamping plates 7, ensuring that the cleaning cotton 8 and auxiliary cotton 10 are always in contact with the surface of the rotor 2. After the clamping plates 7 move, they compress the elastic ball 12, allowing the cleaning agent inside the elastic ball 12 to enter the cleaning cotton 8 through the connecting pipe, thus helping to wipe away residual paint from the surface of the rotor 2. After the rotor 2 leaves between the clamping plates 7, the clamping plates 7 are reset under the action of the spring and no longer squeeze the elastic ball 12. The elastic ball 12 draws in the cleaning agent in the rectangular box 11 through the liquid guide tube 13, thus preparing for the next cleaning.
[0026] As rotor 2 moves upward, electric push rod 16 is activated simultaneously, causing the output end of electric push rod 16 to move storage box 17 downward along rotor 2. After rotor 2 moves upward and resets, storage box 17 also resets under the action of electric push rod 16. Since storage box 17 stretches multi-stage telescopic plate 18 when it moves for the first time, it draws outside gas into multi-stage telescopic plate 18. As storage box 17 resets, it squeezes multi-stage telescopic plate 18, causing the gas in multi-stage telescopic plate 18 to be sprayed towards rotor 2 through gas outlet pipe 19.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An environmentally friendly coating viscosity testing device, comprising a viscosity meter (1), a rotor (2) mounted on the viscosity meter (1), and a loading cup (3) for loading coating placed on the viscosity meter (1); characterized in that: A connecting rod (4) is fixedly installed on one side of the viscometer (1). A fixing ring (5) is fixedly installed at one end of the connecting rod (4). The fixing ring (5) and the rotor (2) are on the same vertical line. Several sliding rods (6) are slidably connected inside the fixing ring (5). An arc-shaped clamping plate (7) is fixedly installed at one end of the sliding rod (6). A cleaning cotton (8) is fixedly installed on the side of the clamping plate (7) away from the sliding rod (6). A spring is fixedly installed between the clamping plate (7) and the fixing ring (5).
2. The environmentally friendly coating viscosity testing device according to claim 1, characterized in that: The two sides of the clamp (7) are slidably connected to auxiliary plates (9), and auxiliary cotton (10) is fixedly installed on one side of the auxiliary plate (9).
3. The environmentally friendly coating viscosity testing device according to claim 1, characterized in that: A rectangular box (11) is fixedly installed on one side of the viscometer (1). The rectangular box (11) contains pre-stored cleaning agent. A hollow elastic ball (12) is fixedly installed between the clamp (7) and the fixing ring (5). A liquid guide tube (13) with a one-way valve is fixedly installed between the elastic ball (12) and the rectangular box (11). The elastic ball (12) and the cleaning cotton (8) are connected by a connecting pipe with a one-way valve.
4. The environmentally friendly coating viscosity testing device according to claim 1, characterized in that: Guide plates (14) are fixedly installed at the bottom and top of the clamping plate (7), and guide columns (15) made of flexible material are rotatably connected to the arc surface of the guide plate (14).
5. The environmentally friendly coating viscosity testing device according to claim 1, characterized in that: An electric push rod (16) is fixedly installed on one side of the viscometer (1), and a storage box (17) is fixedly installed on the output end of the electric push rod (16).
6. The environmentally friendly coating viscosity testing device according to claim 5, characterized in that: A multi-stage telescopic plate (18) is fixedly installed between the viscometer (1) and the storage box (17). The multi-stage telescopic plate (18) is composed of several hollow plates that are sealed and slidably connected. An air inlet pipe (20) with a one-way valve is fixedly installed at the bottom of the multi-stage telescopic plate (18), and an air outlet pipe (19) with a one-way valve is fixedly installed at the top of the multi-stage telescopic plate (18). The end of the air outlet pipe (19) away from the multi-stage telescopic plate (18) is aligned with the rotor (2).