Water drop contact angle measuring instrument

Abstract

The utility model relates to the technical field of contact angle measurement, and discloses a water drop contact angle measuring instrument which comprises a moving mechanism and further comprises a clamping mechanism, a fixing mechanism and a base mechanism, the bottom end of the moving mechanism is in threaded connection with the top end of the base mechanism, the bottom end of the clamping mechanism is fixedly connected with the side face of the base mechanism, and the fixing mechanism is fixedly connected with the side face of the base mechanism. The bottom end of the fixing mechanism is fixedly connected with the side face of the base mechanism, the moving mechanism comprises an inclined plate, a telescopic rod and a moving plate, the bottom end of the inclined plate is connected with a base plate in a hinged mode, the bottom end of the base plate is fixedly connected with the top end of the telescopic rod, and the bottom end of the telescopic rod is connected with a fixing base. The bottom end of the fixed base is fixedly connected with the top end of a movable plate, the bottom end of the movable plate is in threaded connection with the side face of the base mechanism, and the side face of the movable plate is connected with the inner side of the base mechanism, so that the surface of a sample can be inclined, liquid drops are closer to the actual use state when making contact with the surface, and the contact angle can be accurately measured.

Description

Technical Field

[0001] The utility model relates to the technical field of contact angle measurement, and more specifically to a water droplet contact angle measuring instrument Background Art

[0002] The contact angle refers to the tangent of the gas-liquid interface made at the three-phase intersection of gas, liquid, and solid. The angle θ between this tangent on the liquid side and the solid-liquid junction line is a measure of the wetting degree and is the main method for detecting surface properties nowadays. Using the principle of optical imaging, it measures the contact angle, wetting performance, surface and interfacial tension, advancing and receding angles, surface energy, etc. of the sample surface. The contact angle measuring instrument is mainly used to measure the contact angle of a liquid on the surface of a solid material. At the same time, the contact angle is also an important parameter describing the wetting of a liquid on the surfaces of different solid materials and plays a very important role in scientific research and actual production engineering processes in many industries

[0003] Deficiencies of the prior art: Most of the workbench parts of the existing contact angle measuring instruments only have the functions of adjusting the position in the front-back, left-right, and up-down directions, and do not have the function of measuring the contact angle of a liquid on an inclined solid surface Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a water droplet contact angle measuring instrument to solve the problems existing in the above-mentioned background art

[0005] To achieve the above object, the utility model provides the following technical solution: A water droplet contact angle measuring instrument includes a moving mechanism, and also includes: a clamping mechanism, a fixing mechanism, and a base mechanism. The bottom end of the moving mechanism is threadedly connected to the top end of the base mechanism. The bottom end of the clamping mechanism is fixedly connected to the side surface of the base mechanism. The bottom end of the fixing mechanism is fixedly connected to the side surface of the base mechanism. The moving mechanism includes an inclined plate, a telescopic rod, and a moving plate. The bottom end of the inclined plate is hingedly connected to a backing plate. The bottom end of the backing plate is fixedly connected to the top end of the telescopic rod. The bottom end of the telescopic rod is connected to a fixed base. The bottom end of the fixed base is fixedly connected to the top end of the moving plate. The bottom end of the moving plate is threadedly connected to the side surface of the base mechanism. The side surface of the moving plate is connected to the inside of the base mechanism

[0006] Further, the moving mechanism includes a push piece and a fixed nose. The bottom end of the push piece is connected to the top end of the backing plate. The bottom end of the fixed nose is fixedly connected to the top end of the backing plate. A moving groove is opened at the top end of the backing plate. The inside of the moving groove is connected to the bottom end of the push piece. A push rod is connected to the inside of the fixed nose. The top end of the push rod is fixedly connected to the side surface of the push piece

[0007] Further, the moving mechanism includes a fine adjustment knob and a coarse adjustment knob. The side of the telescopic rod is fixedly connected to the top end of the fine adjustment knob, and the side of the telescopic rod is fixedly connected to the top end of the coarse adjustment knob.

[0008] Further, the clamping mechanism includes a fixing plate, a first base, and a push rod fixing block. The bottom end of the fixing plate is fixedly connected to the top end of the first base. The bottom end of the first base is fixedly connected to the top end of the base mechanism. A lighting lamp is fixedly connected to the inner side of the fixing plate. The side of the fixing plate is fixedly connected to the side of the push rod fixing block. A transmission plate is connected to the inner side of the push rod fixing block. A fixing clip is fixedly connected to the side of the transmission plate.

[0009] Further, the fixing mechanism includes a support base and a camera. The bottom end of the support base is fixedly connected to a second base. The bottom end of the second base is fixedly connected to the base mechanism. The top end of the support base is fixedly connected to a mounting bracket. The top end of the mounting bracket is fixedly connected to the bottom end of the camera.

[0010] Further, the base mechanism includes a basic base, a micro motor, and a lead screw fixing block. The side of the basic base is fixedly connected to the top end of the micro motor. The bottom end of the micro motor is fixedly connected to a lead screw. The side of the lead screw is threadedly connected to the bottom end of the moving plate. The inner side of the basic base is fixedly connected to the bottom end of the lead screw fixing block. The side of the lead screw fixing block is connected to the bottom end of the lead screw. A chute is formed on the side of the basic base. The inner side of the chute is connected to the side of the moving plate.

[0011] The technical effects and advantages of the present utility model are as follows:

[0012] 1. By providing an inclined moving mechanism, the present utility model is conducive to inclining the surface of the sample, making the liquid droplet closer to the actual use state when contacting the surface, which helps to accurately measure the contact angle; it can simulate the real situation of the object surface being inclined, making the measurement result more in line with the actual application scenario and improving the reliability of the measurement; it can be applied to different types of surfaces, including horizontal, inclined or vertical surfaces, expanding the application range of the contact angle measuring instrument.

[0013] 2. By providing a clamping mechanism, the present utility model is conducive to firmly clamping the sample, ensuring the fixed position of the sample during the measurement process and avoiding measurement errors caused by sample movement; it can quickly fix and release the sample, facilitating the user to replace different samples for contact angle measurement and improving the experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the structure of the moving mechanism of the present utility model;

[0016] Figure 3 is a partial structural schematic diagram of the moving mechanism of the present utility model;

[0017] Figure 4 is a structural schematic diagram of the clamping mechanism of the present utility model;

[0018] Figure 5 is a structural schematic diagram of the fixing mechanism of the present utility model;

[0019] Figure 6 is a structural schematic diagram of the base mechanism of the present utility model.

[0020] The reference numerals are: 1, moving mechanism; 101, inclined plate; 102, backing plate; 103, telescopic rod; 104, fixed base; 105, moving plate; 106, pushing piece; 107, moving groove; 108, fixed nose; 109, pushing rod; 110, fine adjustment knob; 111, coarse adjustment knob; 2, clamping mechanism; 201, fixing plate; 202, first base; 203, lighting lamp; 204, push rod fixing block; 205, transmission plate; 206, fixed clamp; 3, fixing mechanism; 301, support seat; 302, second base; 303, camera; 304, mounting bracket; 4, base mechanism; 401, basic base; 402, micro motor; 403, screw rod fixing block; 404, screw rod; 405, sliding groove. Specific embodiments

[0021] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. In addition, the forms of the various structures described in the following embodiments are merely examples, and a water contact angle measuring instrument related to the present utility model is not limited to the various structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0022] Refer to Figures 1 to 6, the present utility model provides a water droplet contact angle measuring instrument, which includes a moving mechanism 1, and also includes: a clamping mechanism 2, a fixing mechanism 3 and a base mechanism 4. The bottom end of the moving mechanism 1 is threadedly connected to the top end of the base mechanism 4. The bottom end of the clamping mechanism 2 is fixedly connected to the side surface of the base mechanism 4. The bottom end of the fixing mechanism 3 is fixedly connected to the side surface of the base mechanism 4. The moving mechanism 1 includes an inclined plate 101, a telescopic rod 103 and a moving plate 105. The bottom end of the inclined plate 101 is hingedly connected with a backing plate 102. The bottom end of the backing plate 102 is fixedly connected to the top end of the telescopic rod 103. The bottom end of the telescopic rod 103 is connected with a fixed base 104. The bottom end of the fixed base 104 is fixedly connected to the top end of the moving plate 105. The bottom end of the moving plate 105 is threadedly connected to the side surface of the base mechanism 4. The side surface of the moving plate 105 is connected to the inside of the base mechanism 4.

[0023] Among them, the moving mechanism 1 includes a push piece 106 and a fixed nose 108. The bottom end of the push piece 106 is connected to the top end of the backing plate 102. The bottom end of the fixed nose 108 is fixedly connected to the top end of the backing plate 102. A moving groove 107 is opened at the top end of the backing plate 102. The inside of the moving groove 107 is connected to the bottom end of the push piece 106. A push rod 109 is connected to the inside of the fixed nose 108. The top end of the push rod 109 is fixedly connected to the side surface of the push piece 106.

[0024] Among them, the moving mechanism 1 includes a fine adjustment knob 110 and a coarse adjustment knob 111. The side surface of the telescopic rod 103 is fixedly connected to the top end of the fine adjustment knob 110. The side surface of the telescopic rod 103 is fixedly connected to the top end of the coarse adjustment knob 111.

[0025] Among them, the clamping mechanism 2 includes a fixing plate 201, a first base 202 and a push rod fixing block 204. The bottom end of the fixing plate 201 is fixedly connected to the top end of the first base 202. The bottom end of the first base 202 is fixedly connected to the top end of the base mechanism 4. A lighting lamp 203 is fixedly connected to the inside of the fixing plate 201. The side surface of the fixing plate 201 is fixedly connected to the side surface of the push rod fixing block 204. A transmission plate 205 is connected to the inside of the push rod fixing block 204. A fixed clamp 206 is fixedly connected to the side surface of the transmission plate 205.

[0026] Among them, the fixing mechanism 3 includes a support base 301 and a camera 303. The bottom end of the support base 301 is fixedly connected to a second base 302. The bottom end of the second base 302 is fixedly connected to the base mechanism 4. The top end of the support base 301 is fixedly connected to a mounting bracket 304. The top end of the mounting bracket 304 is fixedly connected to the bottom end of the camera 303.

[0027] Among them, the base mechanism 4 includes a basic base 401, a micro motor 402, and a lead screw fixing block 403. The side of the basic base 401 is fixedly connected to the top end of the micro motor 402. A lead screw 404 is fixedly connected to the bottom end of the micro motor 402. The side of the lead screw 404 is threadedly connected to the bottom end of the moving plate 105. The inner side of the basic base 401 is fixedly connected to the bottom end of the lead screw fixing block 403. The side of the lead screw fixing block 403 is connected to the bottom end of the lead screw 404. A chute 405 is formed on the side of the basic base 401, and the inner side of the chute 405 is connected to the side of the moving plate 105.

[0028] The working principle of the present utility model: When using this instrument for measurement, the clamping mechanism 2 can fix the syringe with liquid above the moving mechanism 1. When looking for a suitable position of the moving mechanism 1, the coarse adjustment knob 111 can be adjusted. When getting close to the suitable position, the fine adjustment knob 110 can be adjusted to make its position more accurate. For the newly added tilting function, the push rod 109 can be moved. The push rod 109 will move inside the moving groove 107 on the backing plate 102 by pushing the push piece 106, and slowly lift the tilting plate 101. The fixed nose 108 plays a role in fixing the horizontal movement of the push rod 109. If the moving mechanism 1 needs to be moved, the micro motor 402 can be started to drive the lead screw 404 to rotate. The moving plate 105 threadedly connected to the lead screw 404 can move left and right. The syringe can be clamped by the fixed clamp 206, and the transmission plate 205 can move up and down to adjust the height of the syringe, thereby making the observation and measurement more convenient.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A water drop contact angle measuring instrument, comprising a moving mechanism (1), characterized in that: Also includes: The invention relates to a clamping mechanism (2), a fixing mechanism (3) and a base mechanism (4); the bottom end of the movable mechanism (1) is threadedly connected to the top end of the base mechanism (4); the bottom end of the clamping mechanism (2) is fixedly connected to the side of the base mechanism (4); the bottom end of the fixing mechanism (3) is fixedly connected to the side of the base mechanism (4); the movable mechanism (1) comprises an inclined plate (101), a telescopic rod (103) and a movable plate (105); the bottom end of the inclined plate (101) is twistedly connected to a pad (102); the bottom end of the pad (102) is fixedly connected to the top end of the telescopic rod (103); the bottom end of the telescopic rod (103) is connected to a fixed base (104); the bottom end of the fixed base (104) is fixedly connected to the top end of the movable plate (105); the bottom end of the movable plate (105) is threadedly connected to the side of the base mechanism (4); and the side of the movable plate (105) is connected to the inner side of the base mechanism (4).

2. A water drop contact angle measuring instrument according to claim 1, characterized in that: The moving mechanism (1) comprises a push piece (106) and a fixed nose (108), wherein the bottom end of the push piece (106) is connected to the top end of the pad (102), the bottom end of the fixed nose (108) is fixedly connected to the top end of the pad (102), the top end of the pad (102) is provided with a moving groove (107), the inner side of the moving groove (107) is connected to the bottom end of the push piece (106), the inner side of the fixed nose (108) is connected to a propulsion rod (109), and the top end of the propulsion rod (109) is fixedly connected to the side of the push piece (106).

3. A water drop contact angle measuring instrument according to claim 1, characterized in that: The moving mechanism (1) comprises a fine adjustment knob (110) and a coarse adjustment knob (110), the side surface of the telescopic rod (103) being fixedly connected to the top of the fine adjustment knob (110), and the side surface of the telescopic rod (103) being fixedly connected to the top of the coarse adjustment knob (111).

4. A water drop contact angle measuring instrument according to claim 1, characterized in that: The clamping mechanism (2) comprises a fixing plate (201), a No. 1 base (202) and a push rod fixing block (204); the bottom end of the fixing plate (201) is fixedly connected to the top end of the No. 1 base (202); the bottom end of the No. 1 base (202) is fixedly connected to the top end of the base mechanism (4); the inner side of the fixing plate (201) is fixedly connected to a lighting lamp (203); the side surface of the fixing plate (201) is fixedly connected to the side surface of the push rod fixing block (204); the inner side of the push rod fixing block (204) is connected to a transmission plate (205); and the side surface of the transmission plate (205) is fixedly connected to a fixing clamp (206).

5. The water drop contact angle measuring instrument according to claim 1, characterized in that: The fixing mechanism (3) comprises a support seat (301) and a camera (303); the bottom end of the support seat (301) is fixedly connected to a second base (302); the bottom end of the second base (302) is fixedly connected to a base mechanism (4); the top end of the support seat (301) is fixedly connected to a mounting frame (304); the top end of the mounting frame (304) is fixedly connected to the bottom end of the camera (303).

6. A water drop contact angle measuring instrument according to claim 1, characterized in that: The base mechanism (4) comprises a basic base (401), a micro motor (402) and a screw fixing block (403); the side of the basic base (401) is fixedly connected to the top of the micro motor (402); the bottom of the micro motor (402) is fixedly connected to a screw rod (404); the side of the screw rod (404) is threadedly connected to the bottom of the moving plate (105); the inner side of the basic base (401) is fixedly connected to the bottom of the screw fixing block (403); the side of the screw fixing block (403) is connected to the bottom of the screw rod (404); a sliding groove (405) is provided on the side of the basic base (401); the inner side of the sliding groove (405) is connected to the side of the moving plate (105).

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