Auxiliary shooting device for static water contact angle
By designing an auxiliary photographing device for static water contact angle, including rotating the camera capture box and adjusting the angle of the pointer, the problem that the camera part in the prior art cannot accurately align with the liquid sample, and the accuracy and reliability of contact angle measurement are improved.
Patent Information
- Application Number
- CN202421205306.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the prior art, it is not possible to ensure that the camera part can accurately align with the liquid sample, which affects the measurement accuracy of the static water contact angle.
An auxiliary shooting device with static water contact angle is designed, including a main body frame, a camera capture box, an auxiliary structure and a protective structure. Make sure the camera assembly is accurately aligned with the liquid sample by rotating the camera capture box and adjusting the angle of the pointer.
Accurate alignment of the camera components is achieved, the measurement accuracy and reliability of static water contact angle is improved, and the reproducibility and accuracy of experimental data is ensured.
Smart Images
Figure CN222866472U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an auxiliary shooting device for static water contact angle, belonging to the technical field of measuring equipment. Background Art
[0002] The static water contact angle is an important parameter used to measure the wettability of a liquid on a solid surface. It represents the angle formed by a droplet on a solid surface, specifically the angle between the tangent line of the droplet edge at the contact point and the solid surface.
[0003] Specifically, when a drop of liquid (such as water) is placed on a solid surface, the drop will form a specific shape. This shape depends on the interfacial tension between the liquid and the solid and the surface tension within the liquid. The contact angle measures the angle that the drop forms at the interface of the solid, liquid and gas phases:
[0004] The contact angle θ is between 0° and 90°: In this case, the liquid tends to spread on the solid surface and the solid surface appears hydrophilic (good wettability).
[0005] Contact angle θ is greater than 90°: In this case, the liquid tends to form a small ball on the solid surface, and the solid surface appears hydrophobic (poor wettability).
[0006] The contact angle θ is approximately 0°: indicating that the liquid completely wets the solid surface, which is usually observed on superhydrophilic materials.
[0007] The contact angle θ is approximately 180°: indicating almost complete non-wetting, which is typically observed on superhydrophobic materials.
[0008] The contact angle can be measured optically using a microscope or a contact angle meter. The standard measurement method is generally to use the drop analysis technique, where a small drop of liquid is dropped onto a solid surface, and then a camera is used to capture the side image of the drop, and the contact angle of the drop is calculated using image analysis software.
[0009] Factors affecting contact angle:
[0010] Chemical properties of solid surfaces: Different materials will have different wettability to the same liquid.
[0011] Surface roughness: A rough surface usually affects the contact angle, making a hydrophilic surface appear more hydrophilic or a hydrophobic surface appear more hydrophobic.
[0012] Properties of liquids: Different liquids have different surface tensions and therefore form different contact angles on the same solid surface.
[0013] Contamination and surface treatment: The cleanliness and surface treatment of the solid surface, such as coatings and treatment methods, can also affect the contact angle.
[0014] Application areas:
[0015] Surface science: the study of wettability and surface energy of solid surfaces.
[0016] Materials Science: Developing and evaluating the surface properties of new materials, such as hydrophobic coatings and hydrophilic materials.
[0017] Biomedicine: Study the interaction between cells and the surfaces of biomaterials.
[0018] Industry: Improve coating, bonding, printing and other processing technologies.
[0019] As an important parameter, static water contact angle is widely used in various scientific research and industrial fields to evaluate and optimize the surface properties of materials.
[0020] However, in general equipment, it is impossible to ensure that the camera part can be accurately aligned with the liquid sample. Summary of the invention
[0021] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide an auxiliary shooting device for static water contact angle, which solves the problem in the prior art that the camera part cannot be guaranteed to be accurately aligned with the liquid sample.
[0022] In order to achieve the above-mentioned objectives, the utility model adopts the following technical solution: comprising: a main frame, a camera capture box is arranged on the inner side of one side of the main frame, and an auxiliary structure is arranged on the top of the camera capture box;
[0023] A bracket assembly is arranged at the front side of the top end of one end of the main frame, a liquid injection assembly is arranged at the bottom end of the bracket assembly, a placement table is arranged in the middle of the top end of the main frame, a light source assembly is arranged at the top end of the other end of the main frame, and a protective structure is arranged in the middle of the front and rear ends of the main frame.
[0024] By adopting the above technical solution, the camera assembly can be accurately aligned with the liquid sample.
[0025] Preferably, the auxiliary structure includes a measuring angle, a fixing axis, a first rotating axis and a pointer. A pointer is provided in the middle of the top of the camera capture box, a first rotating axis is provided on the inner side of the pointer, measuring angles are provided on both sides of the first rotating axis, a fixing axis is provided on the outer side of the measuring angle, and the fixing axis is fixedly connected to the main frame.
[0026] By adopting the above technical solution, the retaining shaft can be prevented from falling off.
[0027] Preferably, the pointer is fixedly connected to the camera capture box.
[0028] By adopting the above technical solution, it is convenient to prevent the camera capture box and the pointer from loosening.
[0029] Preferably, a rotating structure is formed between the pointer and the first rotating shaft.
[0030] By adopting the above technical solution, when the camera capture box rotates, the pointer rotates along with the camera capture box.
[0031] Preferably, the appearance of the measuring angle is provided with an angle numerical parameter.
[0032] By adopting the above technical solution, when the pointer points to the surface of the measuring angle, the staff can read the angle value of the camera capture box.
[0033] Preferably, the protective structure includes a vertical rod, a sliding frame, a second rotating shaft, a bottom shaft block and a baffle, a bottom shaft block is provided at the front and rear ends of the middle of the main frame, a second rotating shaft is provided at the top of the bottom shaft block, a vertical rod is provided at the top of the second rotating shaft, a sliding frame is provided on the outside of the vertical rod, a baffle is provided at the top of one end of the sliding frame, and the sliding frame has a T-shaped shape.
[0034] By adopting the above technical solution, the sliding frame can easily drive the blocking piece to move to the two sides of the placement table.
[0035] Preferably, a rotating structure is formed between the bottom shaft block and the second rotating shaft.
[0036] By adopting the above technical solution, the second rotating shaft can be easily rotated.
[0037] Beneficial effects achieved by the utility model:
[0038] 1. The utility model rotates the camera capture box, which drives the pointer to rotate outside the first rotating shaft. When the pointer points to the angle indication position marked outside the retaining shaft, it is convenient for the staff to detect the use angle of the camera capture box.
[0039] 2. The utility model rotates the second rotating shaft at the top of the bottom shaft block and moves the sliding frame outside the vertical rod. At the same time, the sliding frame drives the baffle to move to the outside of the placement table, so that the baffle can prevent the sample material on the top of the placement table from tilting. BRIEF DESCRIPTION OF THE DRAWINGS
[0040] Figure 1 This is a schematic diagram of the first appearance structure of the utility model;
[0041] Figure 2 This is a schematic diagram of the second appearance structure of the utility model;
[0042] Figure 3 This is a schematic diagram of the third appearance structure of the utility model;
[0043] Figure 4 It is a schematic diagram of the first auxiliary structure of the utility model;
[0044] Figure 5 It is a schematic diagram of the second auxiliary structure of the utility model;
[0045] Figure 6 It is a schematic diagram of the third auxiliary structure of the utility model;
[0046] Figure 7 This is a schematic diagram of the first protective structure of the utility model;
[0047] Figure 8 It is a schematic diagram of the second protection structure of the utility model.
[0048] The meanings of the reference numerals in the figure are: 1. Main frame; 2. Camera capture box; 3. Auxiliary structure; 301. Measuring angle; 302. Retaining axis; 303. First rotating axis; 304. Pointer; 4. Bracket assembly; 5. Liquid injection assembly; 6. Protective structure; 601. Vertical rod; 602. Sliding frame; 603. Second rotating axis; 604. Bottom axis block; 605. Baffle; 7. Light source assembly; 8. Placement table. DETAILED DESCRIPTION
[0049] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.
[0050] This embodiment discloses an auxiliary shooting device for static water contact angle, comprising: a main frame 1, a camera capture box 2 is arranged on the inner side of one side of the main frame 1, and an auxiliary structure 3 is arranged on the top of the camera capture box 2;
[0051] A bracket assembly 4 is arranged on the front side of the top end of one end of the main frame 1, a liquid injection assembly 5 is arranged at the bottom end of the bracket assembly 4, a placement table 8 is arranged in the middle of the top end of the main frame 1, a light source assembly 7 is arranged at the top end of the other end of the main frame 1, and a protective structure 6 is arranged in the middle of the front and rear ends of the main frame 1.
[0052] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6In one aspect of the present embodiment, the auxiliary structure 3 includes a measuring angle 301, a fixing shaft 302, a first rotating shaft 303 and a pointer 304. The pointer 304 is arranged at the middle of the top of the video capture box 2, the first rotating shaft 303 is arranged inside the pointer 304, the measuring angle 301 is arranged on both sides of the first rotating shaft 303, the fixing shaft 302 is arranged outside the measuring angle 301, the fixing shaft 302 is fixedly connected to the main frame 1, the video capture box 2 is rotated, the video capture box 2 drives the pointer 304 to rotate outside the first rotating shaft 303, and the pointer 304 rotates inside the measuring angle 301, and the pointer 304 points to the angle value marked on the surface of the measuring angle 301, and the search angle of the video capture box 2 will be adjusted:
[0053] The main effects and advantages are:
[0054] Precise angle adjustment:
[0055] The angle of the camera capture box 2 can be accurately adjusted by rotating the camera capture box 2 and by using the pointer 304 and the measuring angle 301. This allows the operator to observe and capture the image of the droplet at different angles, thereby ensuring the accuracy and reliability of the contact angle measurement.
[0056] Convenient operation:
[0057] This design fixes the position of the video capture box 2 by the retaining shaft 302, so that the video capture box 2 can stably rotate on the first rotating shaft 303. In this way, the operator can easily adjust the angle of the video capture box 2 without worrying about the displacement of the video capture box 2 or other errors.
[0058] Reproducibility and stability:
[0059] The fixed connection between the retaining shaft 302 and the main frame 1 ensures the stability of the system. Each time the camera capture box 2 is adjusted, the marked value on the measuring angle 301 pointed by the pointer 304 can be used to record and reproduce a specific angle. This is very important for experimental reproducibility and data consistency.
[0060] Real-time angle display:
[0061] The pointer 304 provides a visual real-time angle feedback when pointing to the marked value of the measurement angle 301. The operator can immediately see and confirm the current angle setting of the camera capture box 2 without the need for additional measurement tools or steps. This improves the convenience and efficiency of use.
[0062] Multi-angle measurement capability:
[0063] This design allows for easy multi-angle measurements to understand the morphology and contact angle changes of droplets at different observation angles. This provides important experimental data for a comprehensive study of the wettability of material surfaces and droplet behavior. The above structure integrates functions such as rotation, fixation, display, and measurement, which not only improves the ease of operation and accuracy of the contact angle meter, but also enhances the reliability and reproducibility of experimental data, making it suitable for precise surface science research and material science applications.
[0064] Reference Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 In one aspect of the present embodiment, the protective structure 6 includes a vertical rod 601, a sliding frame 602, a second rotating shaft 603, a bottom shaft block 604 and a baffle 605. The bottom shaft blocks 604 are arranged at the front and rear ends of the middle of the main frame 1. The top of the bottom shaft block 604 is provided with a second rotating shaft 603. The top of the second rotating shaft 603 is provided with a vertical rod 601. The outer side of the vertical rod 601 is provided with a sliding frame 602. The top of one end of the sliding frame 602 is provided with a baffle 605. The shape of the sliding frame 602 is T-shaped. The second rotating shaft 603 at the top of the bottom shaft block 604 is rotated, and the second rotating shaft 603 drives the vertical rod 601 to rotate, and the sliding frame 602 outside the vertical rod 601 is moved. The sliding frame 602 drives the baffle 605 to adjust to the outer side of the placement table 8, and the baffle 605 sticks to the outer side of the placement table 8:
[0065] The main effects and advantages include:
[0066] Flexible protection adjustment:
[0067] By rotating the second rotating shaft 603, the vertical rod 601 can rotate around the rotating shaft, thereby adjusting the angle and position of the sliding frame 602 and the blocking piece 605. This makes the protective structure 6 highly flexible, and the protection range and angle can be changed as needed.
[0068] Precise position control:
[0069] The design of the slide frame 602 enables it to move on the vertical rod 601, thereby accurately adjusting the position of the baffle 605. This precise control ensures that the baffle 605 can completely fit the outer side of the placement platform 8, thereby improving the protection effect.
[0070] Stable fixing mechanism:
[0071] The vertical rod 601 and the bottom shaft block 604 are connected by the second rotating shaft 603, which ensures the stability of the vertical rod 601. No matter which angle the vertical rod 601 rotates to, the structure can be kept stable and is not easy to fall off or loosen.
[0072] Excellent protection performance:
[0073] The baffle 605 is attached to the outer side of the placement table 8, which can effectively prevent the external environment from interfering with the objects on the placement table 8, such as droplet samples or other experimental materials. For example, it can prevent the influence of dust, impurities or airflow, ensuring the purity of the sample and the accuracy of the measurement during the experiment.
[0074] Convenient operation:
[0075] The protective structure 6 allows the operator to quickly adjust the protective position by simply rotating and sliding, without complicated operation steps, and is very convenient to use. This structural design not only improves the efficiency of operation, but also reduces human errors.
[0076] Versatile protection applications:
[0077] Since the sliding frame 602 is T-shaped, this design may increase its adjustable range and carrying capacity, making it not only suitable for protection on the horizontal plane, but also can provide protection in the vertical direction to a certain extent. In addition, this structure may be suitable for placing tables 8 of different shapes and sizes, and has strong versatility.
[0078] Good mechanical properties:
[0079] Through the coordination of the bottom shaft block 604 and various components, the entire protective structure 6 has good mechanical properties. When the protective structure 6 needs to be removed for maintenance or removal, it can also be easily disassembled and adjusted. The main effect of this protective structure 6 design is to provide flexible, precise and stable protection, ensuring that the sample or equipment is protected from external interference during the experiment, and improving the reliability and accuracy of the experimental data. At the same time, this design is easy to operate, has strong versatility and mechanical properties, and is very suitable for use in precision experiments or industrial applications.
[0080] All electrical equipment in this solution are powered by an external power supply.
[0081] Working principle: When using the auxiliary shooting device for static water contact angle, first fix the solid sample to be measured on the top of the placement table 8, adjust the position of the placement table 8, rotate the second rotating shaft 603 at the top of the bottom shaft block 604, the second rotating shaft 603 drives the vertical rod 601 to rotate, move the sliding frame 602 on the outside of the vertical rod 601, the sliding frame 602 drives the baffle 605 to adjust to the outside of the placement table 8, the baffle 605 sticks to the outside of the placement table 8, and then accurately drip a drop of liquid, usually water, on the solid surface through the liquid injection component 5, and then the light source component 7 is started to illuminate the droplet, and at the same time the camera capture box 2 starts to look for the droplet on the solid surface. The side image is formed, and the camera capture box 2 is rotated at the same time. The camera capture box 2 drives the pointer 304 to rotate on the outside of the first rotating shaft 303, and the pointer 304 rotates on the inside of the measuring angle 301. At the same time, the pointer 304 points to the angle value marked on the surface of the measuring angle 301. At this time, the searching angle of the camera capture box 2 will be adjusted, and then the camera capture box 2 transmits the real-time collected image to the computer, which is processed by special software to identify the outline of the droplet. Finally, according to the processed image, the software automatically calculates the contact angle formed by the droplet and the solid surface, and displays the measurement result. This is the working principle of the auxiliary shooting device of the static water contact angle.
[0082] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. An auxiliary shooting device for static water contact angle, comprising: A main frame (1), characterized in that a video capture box (2) is arranged on the inner side of one side of the main frame (1), and an auxiliary structure (3) is arranged on the top of the video capture box (2); A support assembly (4) is arranged at the front side of the top end of one end of the main frame (1), a liquid injection assembly (5) is arranged at the bottom end of the support assembly (4), a placement table (8) is arranged in the middle of the top end of the main frame (1), a light source assembly (7) is arranged at the top end of the other end of the main frame (1), and a protective structure (6) is arranged in the middle of the front and rear ends of the main frame (1).
2. The auxiliary shooting device of static water contact angle according to claim 1, characterized in that: The auxiliary structure (3) comprises a measuring angle (301), a retaining shaft (302), a first rotating shaft (303) and a pointer (304); a pointer (304) is arranged in the middle of the top of the camera capture box (2); a first rotating shaft (303) is arranged inside the pointer (304); measuring angles (301) are arranged on both sides of the first rotating shaft (303); a retaining shaft (302) is arranged outside the measuring angle (301); and the retaining shaft (302) is fixedly connected to the main frame (1).
3. The auxiliary shooting device of static water contact angle according to claim 2, characterized in that: The pointer (304) is fixedly connected to the camera capture box (2).
4. The auxiliary shooting device of static water contact angle according to claim 2, characterized in that: A rotating structure is formed between the pointer (304) and the first rotating shaft (303).
5. The auxiliary shooting device of static water contact angle according to claim 2, characterized in that: The appearance of the measuring angle (301) is provided with an angle value parameter.
6. The auxiliary shooting device of static water contact angle according to claim 1, characterized in that: The protective structure (6) comprises a vertical rod (601), a sliding frame (602), a second rotating shaft (603), a bottom shaft block (604) and a baffle (605); the bottom shaft blocks (604) are arranged at the front and rear ends of the middle of the main frame (1); the second rotating shaft (603) is arranged at the top of the bottom shaft block (604); the vertical rod (601) is arranged at the top of the second rotating shaft (603); the sliding frame (602) is arranged on the outer side of the vertical rod (601); the baffle (605) is arranged at the top of one end of the sliding frame (602); and the sliding frame (602) has a T-shaped appearance.
7. The auxiliary shooting device of static water contact angle according to claim 6, characterized in that: A rotating structure is formed between the bottom shaft block (604) and the second rotating shaft (603).