Underwater droplet contact angle testing device

Abstract

The utility model belongs to the technical field of contact angle testing, and particularly relates to an underwater liquid drop contact angle testing device which comprises a support with the height capable of being changed. The two sides of the top end of the support are both provided with the first supporting plates, the bottom of each first supporting plate is fixedly provided with a plurality of connecting rods, the top of the second supporting plate is fixedly provided with a plurality of connecting rods, the liquid drop assembly is arranged at the bottom of the first supporting plate, and the top of the second supporting plate is provided with a plurality of fixing assemblies. A through hole is formed in the second supporting plate, so that the descending resistance of the second supporting plate can be reduced, by arranging the support with the height capable of being changed, when the device is stored, structures such as the liquid drop assembly can be located in the liquid storage box, and then the storage space of the device can be reduced; and in addition, a handle is arranged, so that the device can be conveniently taken by a person.

Description

Technical Field

[0001] The utility model relates to the technical field of contact angle testing, in particular to an underwater liquid drop contact angle testing device. Background Art

[0002] Superoleophobic surfaces have important use value and broad application prospects in people's daily life and industrial production. For example, superoleophobic textiles can be used to make furniture, tablecloths, and oil-repellent protective clothing. The application of superoleophobic surfaces in micro-aquatic equipment can make them have super strong load capacity in oil-contaminated waters. In addition, superoleophobic surfaces also have important applications in the field of oil-water separation. Superoleophobic surfaces can reduce the adhesion of oil on their surfaces and improve the corrosion resistance, drag reduction, oxidation resistance, and pollution resistance of metal materials.

[0003] The oleophobicity of existing superoleophobic surfaces is mostly tested using contact angle. However, the volume of the current test device when in use and when not in use is basically unchanged, which results in the test device taking up a certain amount of space when stored. Therefore, an underwater droplet contact angle test device is invented. Utility Model Content

[0004] In view of the above problems and / or the problems existing in the existing underwater droplet contact angle testing device, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide an underwater droplet contact angle testing device that can solve the above-mentioned existing problems.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] An underwater droplet contact angle testing device, comprising:

[0008] A bracket whose height can be changed;

[0009] A first support plate, wherein first support plates are installed on both sides of the top end of the bracket;

[0010] Connecting rods, a plurality of connecting rods are fixedly installed at the bottom of the first supporting plate;

[0011] A second supporting plate, a plurality of connecting rods being fixedly mounted on the top of the second supporting plate;

[0012] A droplet assembly, wherein the droplet assembly is disposed on the bottom of the first support plate;

[0013] Fixed components: a plurality of fixed components are installed on the top of the second support plate.

[0014] As a preferred solution of the underwater liquid drop contact angle testing device described in the utility model, wherein: a through hole is opened on the second support plate to reduce the descending resistance of the second support plate.

[0015] As a preferred solution of the underwater droplet contact angle test device described in the utility model, the bracket includes:

[0016] Base plate;

[0017] First cylinders, a plurality of first cylinders are fixedly mounted on the top of the bottom plate;

[0018] The top plate is fixedly mounted on the first cylinder via a piston rod, and first support plates are fixedly mounted on both sides of the bottom of the top plate.

[0019] As a preferred solution of the underwater droplet contact angle testing device described in the utility model, a liquid storage tank is placed at the bottom of the bottom plate, and liquid is provided in the liquid storage tank.

[0020] As a preferred solution of the underwater droplet contact angle testing device described in the utility model, a handle is fixedly installed on the top of the top plate to facilitate people to take it.

[0021] As a preferred solution of the underwater droplet contact angle testing device described in the utility model, the droplet assembly includes:

[0022] A U-shaped plate, wherein the U-shaped plate is fixedly mounted on the bottom of the first supporting plate;

[0023] A syringe, wherein the syringe is fixedly mounted on the U-shaped plate;

[0024] an oily solution, wherein the oily solution is provided in a syringe;

[0025] A second cylinder located in the inner cavity of the U-shaped plate, wherein the second cylinder is fixedly mounted on the bottom of the first support plate, and a piston rod on the second cylinder is fixedly mounted on a piston handle on the syringe;

[0026] A U-shaped delivery tube is fixedly mounted on the liquid outlet end of the syringe, and one end of the U-shaped delivery tube bypasses the second support plate and extends into the through hole.

[0027] As a preferred solution of the underwater droplet contact angle testing device described in the utility model, underwater cameras are fixedly installed at both ends of the inner cavity of the liquid storage tank, and the underwater cameras face the dripping point of the oily solution.

[0028] As a preferred solution of the underwater droplet contact angle test device described in the utility model, the fixing component includes:

[0029] An L-shaped plate, the L-shaped plate being fixedly mounted on the top of the second support plate;

[0030] a stud, the stud being threadedly connected to the L-shaped plate;

[0031] A handle, wherein the handle is fixedly mounted on the top end of the stud;

[0032] A lower pressing plate is fixedly mounted on the bottom end of the stud.

[0033] Compared with existing technologies:

[0034] 1. By providing a bracket whose height can be changed, when the device is stored, the droplet assembly and other structures can be placed in the liquid storage tank, thereby reducing the storage space of the device; in addition, by providing a handle, it is convenient for people to take the device;

[0035] 2. By arranging two groups of droplet assemblies and other structures on the bracket, it is possible to carry out multiple groups of tests at one time, thereby improving the test efficiency of the contact angle test to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0037] Figure 2 It is a schematic diagram of the partial structure of the utility model;

[0038] Figure 3 This is a schematic diagram of the support structure of the utility model;

[0039] Figure 4 This is a top view schematic diagram of the second support plate of the utility model;

[0040] Figure 5 It is a schematic diagram of the arrangement of the second support plate and the U-shaped conveying pipe of the utility model.

[0041] In the figure: bottom plate 10, first cylinder 11, top plate 20, handle 30, liquid storage tank 40, liquid 41, first support plate 50, connecting rod 51, second support plate 52, through hole 53, U-shaped plate 60, syringe 61, oily solution 62, second cylinder 63, U-shaped delivery pipe 64, underwater camera 70, L-shaped plate 80, stud 81, handle 82, lower pressure plate 83. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] The utility model provides an underwater droplet contact angle test device, please refer to Figure 1-Figure 5 ;

[0044] It includes: a bracket whose height can be changed, a first support plate 50, a connecting rod 51, a second support plate 52, a droplet assembly, and a fixing assembly;

[0045] A first support plate 50 is installed on both sides of the top of the bracket, a plurality of connecting rods 51 are fixedly installed on the bottom of the first support plate 50, and a plurality of connecting rods 51 are fixedly installed on the top of the second support plate 52. A droplet assembly is arranged on the bottom of the first support plate 50, and a plurality of fixed assemblies are installed on the top of the second support plate 52. A through hole 53 is opened on the second support plate 52 to reduce the descending resistance of the second support plate 52.

[0046] The bracket includes: a bottom plate 10, a first cylinder 11, and a top plate 20;

[0047] A plurality of first cylinders 11 are fixedly installed on the top of the base plate 10, and the plurality of first cylinders 11 are connected to a group of switches so that the plurality of first cylinders 11 can operate synchronously and at the same speed. The first cylinders 11 are fixedly installed on the top plate 20 through piston rods, and first support plates 50 are fixedly installed on both sides of the bottom of the top plate 20. A liquid storage tank 40 is placed at the bottom of the base plate 10, and a liquid 41 is provided in the liquid storage tank 40. The liquid 41 includes but is not limited to water. A handle 30 is fixedly installed on the top of the top plate 20 to facilitate people to take it.

[0048] The droplet assembly includes: a U-shaped plate 60, a syringe 61, an oily solution 62, a second cylinder 63 located in the inner cavity of the U-shaped plate 60, and a U-shaped delivery pipe 64;

[0049] The U-shaped plate 60 is fixedly mounted on the bottom of the first support plate 50, the syringe 61 is fixedly mounted on the U-shaped plate 60, the oily solution 62 is arranged in the syringe 61, and the oily solution 62 includes but is not limited to toluene and ethylbenzene, the second cylinder 63 is fixedly mounted on the bottom of the first support plate 50, and the piston rod on the second cylinder 63 is fixedly mounted on the piston handle on the syringe 61, and the liquid outlet end of the syringe 61 is fixedly mounted with a U-shaped delivery tube 64, and one end of the U-shaped delivery tube 64 bypasses the second support plate 52 and extends to the through hole 5 3, underwater cameras 70 are fixedly installed at both ends of the inner cavity of the liquid storage tank 40, and the underwater camera 70 faces the dripping place of the oily solution 62. The underwater camera 70 can be connected to an external computer or processor as needed. The structure of the syringe 61 is generally: nipple, empty cylinder (including scale lines), piston, piston shaft, piston handle, needle, and the structure of the needle is: needle tip, needle stem, needle plug. Since the syringe 61 is a prior art, no detailed description is given. The oily solution 62 is located in the empty cylinder.

[0050] The fixing assembly includes: an L-shaped plate 80, a stud 81, a handle 82, and a lower pressing plate 83;

[0051] The L-shaped plate 80 is fixedly mounted on the top of the second support plate 52, the stud 81 is threadedly connected to the L-shaped plate 80, the handle 82 is fixedly mounted on the top of the stud 81, and the lower pressure plate 83 is fixedly mounted on the bottom of the stud 81. By setting the handle 82, it is convenient for personnel to rotate the stud 81.

[0052] Working principle:

[0053] Step 1: Place the object to be tested on the second support plate 52, and then rotate the stud 81 through the handle 82 to move the lower pressing plate 83 toward the object to be tested until the lower pressing plate 83 presses the object to be tested to fix the object to be tested;

[0054] Step 2: The top plate 20 is lowered by the first cylinder 11 so that the second support plate 52 moves into the liquid storage tank 40 until the object to be tested is located in the liquid 41;

[0055] Step 3: The piston handle on the syringe 61 is squeezed by the second cylinder 63, so that the oily solution 62 in the syringe 61 can flow through the U-shaped delivery tube 64 to the bottom of the object to be tested. Since the density of the oily solution 62 is less than the density of the liquid 41 (i.e., the density of toluene or ethylbenzene is less than the density of water), the oily solution 62 will flow upward, and the oily solution 62 flowing upward will adhere to the object to be tested;

[0056] Step 4: The image of the droplet-shaped oily solution 62 in the liquid 41 and on the object to be tested is captured by the underwater camera 70 , and then the contact angle of the droplet can be calculated by a processor or a computer.

[0057] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An underwater droplet contact angle testing device, characterized in that: include: A bracket whose height can be changed; A first support plate (50), wherein first support plates (50) are installed on both sides of the top end of the bracket; Connecting rods (51), a plurality of connecting rods (51) being fixedly mounted on the bottom of the first supporting plate (50); A second support plate (52), a plurality of connecting rods (51) being fixedly mounted on the top of the second support plate (52); A liquid drop assembly, the liquid drop assembly being arranged on the bottom of the first support plate (50); Fixed components: a plurality of fixed components are installed on the top of the second support plate (52).

2. The underwater droplet contact angle testing device according to claim 1, characterized in that: The second support plate (52) is provided with a through hole (53) so as to reduce the descending resistance of the second support plate (52).

3. The underwater droplet contact angle testing device according to claim 1, characterized in that: The support comprises: Bottom plate (10); First cylinders (11), a plurality of first cylinders (11) are fixedly mounted on the top of the base plate (10); A top plate (20), wherein the first cylinder (11) is fixedly mounted on the top plate (20) via a piston rod, and first support plates (50) are fixedly mounted on both sides of the bottom of the top plate (20).

4. The underwater droplet contact angle testing device according to claim 3, characterized in that: A liquid storage tank (40) is placed at the bottom of the base plate (10), and liquid (41) is provided in the liquid storage tank (40).

5. The underwater droplet contact angle testing device according to claim 3, characterized in that: A handle (30) is fixedly mounted on the top of the top plate (20) to facilitate people to take it.

6. The underwater droplet contact angle testing device according to claim 2, characterized in that: The droplet assembly comprises: A U-shaped plate (60), the U-shaped plate (60) being fixedly mounted on the bottom of the first support plate (50); A syringe (61), wherein the syringe (61) is fixedly mounted on the U-shaped plate (60); An oily solution (62), wherein the oily solution (62) is disposed in a syringe (61); A second cylinder (63) located in the inner cavity of the U-shaped plate (60), wherein the second cylinder (63) is fixedly mounted on the bottom of the first support plate (50), and a piston rod on the second cylinder (63) is fixedly mounted on a piston handle on the syringe (61); A U-shaped delivery tube (64) is fixedly mounted on the liquid outlet end of the syringe (61), and one end of the U-shaped delivery tube (64) bypasses the second support plate (52) and extends into the through hole (53).

7. The underwater droplet contact angle testing device according to claim 4, characterized in that: Underwater cameras (70) are fixedly mounted at both ends of the inner cavity of the liquid storage box (40), and the underwater cameras (70) face the dripping point of the oily solution (62).

8. The underwater droplet contact angle testing device according to claim 1, characterized in that: The fixing assembly comprises: An L-shaped plate (80), the L-shaped plate (80) being fixedly mounted on the top of the second support plate (52); A stud (81), wherein the stud (81) is threadedly connected to the L-shaped plate (80); A handle (82), wherein the handle (82) is fixedly mounted on the top end of the stud (81); A lower pressing plate (83) is fixedly mounted on the bottom end of the stud (81).

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