A water droplet angle gauge for testing the hydrophobicity of a screen glass surface

Abstract

The utility model belongs to screen glass testing technical field relates to a water drop angle measuring tool for screen glass surface hydrophobicity test, including water drop angle measuring tool body, the upper surface welding of water drop angle measuring tool body is installed with support frame, the outside surface welding of support frame is installed with sliding frame, the outside surface sliding of sliding frame is installed with sliding block, the outside surface fixed mounting of sliding block has the connecting block, the outside surface fixed mounting of connecting block has electric sliding table, the outside surface of connecting block and electric sliding table is provided with conversion unit. Through conversion unit in the conversion disc can carry three drop tubes with different test liquid simultaneously, servo motor can drive the conversion disc to rotate through gear one, gear two, realize the quick switching of different liquid drop tube, do not need to disassemble and replace manually, reduce the operation time, avoid liquid cross -contamination again, improve test efficiency and data reliability.

Description

Technical Field

[0001] This utility model belongs to the field of screen glass testing technology, and relates to a water droplet angle measuring tool for testing the hydrophobicity of screen glass surface. Background Technology

[0002] The water droplet angle gauge is a specialized device for testing the hydrophobicity of screen glass surfaces. Its core function is to control test liquids such as distilled water and salt water to drip onto the surface of the screen glass to be tested. In conjunction with a video acquisition system, a light source control system, and a sample stage, it measures the contact angle formed between the liquid and the glass surface, thereby determining the strength of the hydrophobicity of the screen glass surface.

[0003] The publication number CN208125075U discloses a "portable water droplet angle tester". The overall structure is reasonably designed, with most of the structure being retractable. The chassis has multiple sets of grooves, and the components located at the top of the chassis can be retracted into these grooves, making the water droplet angle tester easy to carry and with a small storage space. It is equipped with multiple handles and casters, making the water droplet angle tester easy to move and transport. The structure is simple, the testing effect is good, and the applicability is wide.

[0004] In actual use, this "portable water droplet angle tester" is set with a single dropper. When testing different types of liquids, it is necessary to manually disassemble the old dropper, install the new dropper, and clean the liquid injection channel. The operation is cumbersome and time-consuming, and it is also easy to cause cross-contamination of liquids due to improper operation, which affects the accuracy of the test. Utility Model Content

[0005] The technical problem this utility model aims to solve is that when testing different types of liquids, it is necessary to manually disassemble the old dropper, install the new dropper, and clean the injection channel. This operation is cumbersome and time-consuming, and improper operation can easily cause cross-contamination of the liquid, affecting the accuracy of the test. The present invention includes a water drop angle measuring instrument body, a support frame welded to the upper surface of the water drop angle measuring instrument body, a sliding frame welded to the outer surface of the support frame, a sliding block slidably mounted on the outer surface of the sliding frame, a connecting block fixedly mounted on the outer surface of the sliding block, an electric slide table fixedly mounted on the outer surface of the connecting block, and a conversion unit provided on the outer surfaces of the connecting block and the electric slide table. The conversion unit includes a servo motor, which is fixedly installed in a groove on the lower surface of the connecting block. A gear one is fixedly installed at the working end of the servo motor. A gear two is rotatably installed on the lower surface of the electric slide. A conversion disk is fixedly installed on the lower surface of the gear two. The gear one and gear two are meshed together. Droppers are fixedly installed in three grooves on the outer surface of the conversion disk.

[0006] An inner groove column is fixedly installed on the outer surface of the electric slide table of this utility model. An injection pipe is slidably installed inside the inner groove column, and a spring is installed in the groove opened inside the inner groove column.

[0007] The spring described in this utility model is fitted on the outer surface of the injection tube. One end of the spring is in contact with the surface of the inner groove of the inner groove column, and the other end is in contact with one side surface of the injection tube limiting piece.

[0008] The injection tube of this invention has an internal limiting sliding installation of a push plug, and a spring is sleeved on the outer surface of the push plug.

[0009] One end of the spring 2 described in this utility model is attached to the outer surface of the inner groove column, and the other end is attached to one side surface of the pusher plate.

[0010] The injection end of the injection tube of this utility model is rounded, the upper surface of the conversion disc is provided with a circular groove, one end of the dropper is provided with a sealing circular groove, and the other end is provided with a pointed tip.

[0011] The movable end of the electric slide table of this utility model is fixedly installed with a pressure rod, which is made of metal.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention allows for the simultaneous mounting of three droppers containing different test liquids on a conversion disc in the conversion unit. A servo motor drives the conversion disc to rotate via gear one and gear two, enabling rapid switching between droppers containing different liquids without the need for manual disassembly and replacement. This reduces operation time, avoids cross-contamination of liquids, and improves testing efficiency and data reliability.

[0013] This invention utilizes a spring within the inner groove column to push the round head of the injection tube to fit tightly against the sealing groove of the dropper, preventing liquid leakage during the injection process. When the electric slide table drives the metal pressure rod to squeeze the push plug, the second spring buffers and stabilizes the injection pressure, ensuring that the dosage and speed of each drop remain consistent. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the connection structure between the sliding frame and the sliding block according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the connecting block according to an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the inner groove column according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the converter disk structure according to an embodiment of the present invention.

[0015] In the diagram: 1. Water drop angle measuring instrument body; 2. Support frame; 3. Sliding frame; 4. Sliding block; 5. Connecting block; 6. Electric slide table; 7. Conversion unit; 71. Servo motor; 72. Gear 1; 73. Gear 2; 74. Conversion disc; 75. Circular groove; 76. Dropper; 77. Sealing circular groove; 78. Inner groove column; 79. Injection tube; 710. Spring 1; 711. Push plug; 712. Spring 2; 713. Pressure rod. Detailed Implementation

[0016] like Figures 1 to 5 As shown, a water droplet angle measuring tool for testing the hydrophobicity of screen glass surface includes a water droplet angle measuring tool body 1, a support frame 2 welded and installed on the upper surface of the water droplet angle measuring tool body 1, a sliding frame 3 welded and installed on the outer surface of the support frame 2, a sliding block 4 slidably installed on the outer surface of the sliding frame 3, a connecting block 5 fixedly installed on the outer surface of the sliding block 4, an electric slide 6 fixedly installed on the outer surface of the connecting block 5, and a conversion unit 7 provided on the outer surfaces of the connecting block 5 and the electric slide 6. The water droplet angle measuring instrument body 1 consists of a video acquisition system, a light source control system, and a three-axis moving sample stage. The conversion unit 7 can be moved and adjusted through the sliding frame 3 and the electric sliding table 6.

[0017] The conversion unit 7 includes a servo motor 71, which is fixedly installed in a groove on the lower surface of the connecting block 5. A gear 72 is fixedly installed at the working end of the servo motor 71. A gear 73 is rotatably installed on the lower surface of the electric slide table 6. A conversion disk 74 is fixedly installed on the lower surface of the gear 73. The gear 72 and the gear 73 are meshed together. Droppers 76 are fixedly installed in the three grooves opened on the outer surface of the conversion disk 74.

[0018] The servo motor 71 is powered by an external power source. Three droppers 76 are placed in three slots through the outer surface of the conversion disk 74. The three droppers 76 are filled with distilled water, salt water and oil-water respectively, and different tests are performed through the three types. First, the servo motor 71 drives the gear 1 72 to rotate, and the gear 1 72 meshes with the gear 2 73, thereby driving the conversion disk 74 to rotate, switching and replenishing the three droppers 76 containing different liquids.

[0019] like Figure 4 As shown, an inner groove column 78 is fixedly installed on the outer surface of the electric slide table 6. An injection pipe 79 is slidably installed inside the inner groove column 78, and a spring 710 is installed in the groove opened inside the inner groove column 78.

[0020] like Figure 4As shown, spring 710 is sleeved on the outer surface of injection tube 79. One end of spring 710 is in contact with the surface of the inner groove of inner groove column 78, and the other end is in contact with one side surface of the limiting piece of injection tube 79.

[0021] The rounded end of the injection tube 79 rotates non-contactly in the circular groove 75. When one of the sealing grooves 77 rotates to the rounded end of the injection tube 79, the rounded end of the injection tube 79 pushes the injection tube 79 to slide inside the inner groove column 78, compressing the spring 710. When the injection tube 79 is inserted into the sealing groove 77, the spring 710 rebounds, thus tightly fitting the rounded end of the injection tube 79 with the dropper 76.

[0022] like Figure 3 and Figure 4 As shown, a push plug 711 is slidably installed inside the injection tube 79, and a spring 712 is sleeved on the outer surface of the push plug 711.

[0023] like Figure 3 As shown, one end of the spring 712 is in contact with the outer surface of the inner groove post 78, and the other end is in contact with one side surface of the pusher plate of the pusher plug 711.

[0024] When the moving end of the electric slide table 6 slides downward, the pressure rod 713 will press the push plug 711, causing the push plug 711 to compress the spring 712 and slide in the injection tube 79, thereby providing the injection air pressure. At this time, the liquid in the dropper 76 will be pushed out by the air pressure. After the test is completed, the electric slide 6 drives the pressure rod 713 to return to its original state, and the spring 712 rebounds to make the push plug 711 return to its original state. By rotating the conversion disk 74, the dropper 76 containing different liquids can be switched for testing.

[0025] like Figure 3 and Figure 5 As shown, the injection end of the injection tube 79 is rounded, the upper surface of the conversion disc 74 is provided with a circular groove 75, one end of the dropper 76 is provided with a sealing circular groove 77, and the other end is provided with a pointed tip.

[0026] The injection end of the injection tube 79 is rounded and is designed to seal and fit snugly against the sealing groove 77.

[0027] like Figure 3 As shown, a pressure rod 713 is fixedly installed on the moving end of the electric slide table 6. The pressure rod 713 is made of metal.

[0028] The pressure rod 713 pushes the pusher plug 711.

[0029] Working principle: First, the servo motor 71 is powered on and starts, driving the gear 72 at its working end to rotate. Since gear 72 meshes with gear 73, gear 73 will synchronously drive the conversion disk 74 below to rotate, thereby switching the droppers 76 on the conversion disk 74 that are equipped with different test liquids. When the sealing groove 77 of a dropper 76 rotates to the round end of the injection tube 79, the round end of the injection tube 79 will be pushed, causing it to slide inside the inner groove column 78 to compress the spring 710. After the round end of the injection tube 79 is fully embedded in the sealing groove 77, the spring 710 rebounds, tightly sealing the round end of the injection tube 79 with the dropper 76.

[0030] After sealing, the moving end of the electric slide 6 slides downward, causing the fixed metal pressure rod 713 to move downward synchronously. The pressure rod 713 will squeeze the push plug 711 inside the injection tube 79, causing the push plug 711 to compress the spring 712 and slide inside the injection tube 79, thereby generating injection air pressure. This air pressure will push the liquid in the dropper 76, causing it to flow out from the tip of the dropper 76, completing the liquid dripping operation for the hydrophobicity test of the screen glass surface.

[0031] After the test, the moving end of the electric slide 6 drives the pressure rod 713 to return to its original position, and the spring 712 rebounds accordingly, pushing the push plug 711 back to its initial position. If the test liquid needs to be changed, the servo motor 71 is restarted to drive the conversion disk 74 to rotate and switch the dropper 76.

[0032] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A water droplet angle measuring instrument for testing the hydrophobicity of screen glass surfaces, characterized in that: The device includes a teardrop angle measuring instrument body (1), a support frame (2) is welded and installed on the upper surface of the teardrop angle measuring instrument body (1), a sliding frame (3) is welded and installed on the outer surface of the support frame (2), a sliding block (4) is slidably installed on the outer surface of the sliding frame (3), a connecting block (5) is fixedly installed on the outer surface of the sliding block (4), an electric slide table (6) is fixedly installed on the outer surface of the connecting block (5), and a conversion unit (7) is provided on the outer surfaces of the connecting block (5) and the electric slide table (6). The conversion unit (7) includes a servo motor (71), which is fixedly installed in a groove on the lower surface of the connecting block (5). A gear 1 (72) is fixedly installed at the working end of the servo motor (71). A gear 2 (73) is rotatably installed on the lower surface of the electric slide (6). A conversion disk (74) is fixedly installed on the lower surface of the gear 2 (73). The gear 1 (72) and the gear 2 (73) are meshed together. Droppers (76) are fixedly installed in the three grooves opened on the outer surface of the conversion disk (74).

2. The water droplet angle measuring instrument for testing the hydrophobicity of screen glass surface according to claim 1, characterized in that: An inner groove column (78) is fixedly installed on the outer surface of the electric slide (6). An injection pipe (79) is slidably installed inside the inner groove column (78). A spring (710) is installed in the groove opened inside the inner groove column (78).

3. The water droplet angle measuring instrument for testing the hydrophobicity of screen glass surface according to claim 2, characterized in that: The spring (710) is sleeved on the outer surface of the injection tube (79). One end of the spring (710) is in contact with the surface of the inner groove of the inner groove column (78), and the other end is in contact with one side surface of the limiting piece of the injection tube (79).

4. The water droplet angle measuring instrument for testing the hydrophobicity of screen glass surface according to claim 3, characterized in that: The injection tube (79) is internally limited and slidably fitted with a push plug (711), and a spring (712) is sleeved on the outer surface of the push plug (711).

5. A water droplet angle measuring instrument for testing the hydrophobicity of a screen glass surface according to claim 4, characterized in that: One end of the second spring (712) is in contact with the outer surface of the inner groove post (78), and the other end is in contact with one side surface of the pusher plate of the pusher plug (711).

6. A water droplet angle measuring instrument for testing the hydrophobicity of a screen glass surface according to claim 2, characterized in that: The injection end of the injection tube (79) is rounded, the upper surface of the conversion plate (74) is provided with a circular groove (75), one end of the dropper (76) is provided with a sealing circular groove (77), and the other end is provided with a pointed tip.

7. A water droplet angle measuring tool for testing the hydrophobicity of a screen glass surface according to claim 6, characterized in that: The moving end of the electric slide (6) is fixedly equipped with a pressure rod (713), which is made of metal.

Images