Stirring device for testing surface interfacial tension
By designing a surface interface tension testing device for clamping and stirring components, the problem of unreliable stirring in the prior art is solved, effective stirring of the inner wall of the solution vessel is achieved, and the accuracy and efficiency of the test are improved.
Patent Information
- Application Number
- CN202421291619.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The prior art lacks a surface interface tension testing device with simple structure and reliable stirring, which affects the accuracy and reliability of the test.
A stirring device including a clamping assembly and a stirring assembly is designed. The clamping assembly is driven by a cylinder to clamp the edge of the solution vessel through the cylinder drive of the valve core, and the stirring assembly is driven by the movement of the valve core to stir the inner wall of the solution vessel, and the spiral notch and rotating guide rod are used to achieve the reliability of the stirring action.
Reliable stirring of the inner wall of the solution vessel is achieved, the accuracy and reliability of surface interface tension testing is ensured, and the accuracy and efficiency of the testing are improved.
Smart Images
Figure CN223154627U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of surface and interfacial tension testing, in particular to a stirring device for surface and interfacial tension testing. Background Art
[0002] A surface and interfacial tensiometer is mainly used for measuring the interfacial tension of liquid-liquid or the surface tension of liquid-gas. Among them, common interfaces include: gas-liquid interface, gas-solid interface, liquid-liquid interface, liquid-solid interface, and solid-solid interface. At present, surface and interfacial tensiometers can be divided into the platinum ring method and the platinum plate method according to different testing principles. Among them, the platinum ring is made of platinum wire with a diameter of 0.37 mm and a circumference of 60 mm. During the test, the platinum ring is first immersed 2-3 mm below the liquid surface (or the interface between two immiscible liquids), and then slowly lifted upward. A film will be formed between the ring and the liquid surface. The film will have a downward pulling force on the platinum ring. Measure the maximum force value exerted by the film on the ring during the entire upward lifting process of the platinum ring, and then convert it into the true surface (interface) tension value. The platinum plate method is that when it is sensed that the platinum plate is immersed in the liquid to be measured, the platinum plate will be affected by the surface tension around it, and the surface tension of the liquid will pull the platinum down as much as possible. When the surface tension of the liquid and other related forces reach equilibrium with the balancing force, the sensing platinum plate will stop immersing into the liquid. At this time, the balance sensor of the instrument will measure the immersion depth and convert it into the surface tension value of the liquid. Compared with the platinum ring method, the tension measured by the platinum plate method changes with time, and it can conveniently measure the surface tension of medium and high viscosity liquids, with high test accuracy and easy use. Whether it is the platinum ring method or the platinum plate method, before the test, it is necessary to stir and scrape the liquid to be measured in the container to make the plane of the liquid to be measured in the container balanced and ensure the accuracy and reliability of the test. However, there is no corresponding stirring device for surface and interfacial tension testing in the prior art.
[0003] Therefore, it is urgent to propose a stirring device for surface and interfacial tension testing with a simple structure and reliable stirring. Content of the Utility Model
[0004] Aiming at the above problems, the purpose of the utility model is to provide a stirring device for surface and interfacial tension testing. The technical solution adopted by the utility model is as follows:
[0005] A stirring device for surface interfacial tension testing is used for clamping a solution vessel and stirring the solution in the solution vessel to hang on the wall. The stirring device comprises a valve core mounting seat, an upper cover plate arranged on the valve core mounting seat, a cylinder fixed on the upper cover plate, a plurality of clamping components annularly arranged at the lower edge of the valve core mounting seat, a valve core arranged in the valve core mounting seat and connected to the cylinder, and a stirring component arranged at the lower part of the valve core mounting seat and stirring the inner wall of the solution vessel to hang on the wall; the clamping component clamps the edge of the solution vessel; the cylinder drives the valve core and drives the clamping component and the stirring component in linkage.
[0006] Further, an upper cavity is provided in the center of the upper part of the valve core mounting seat; a plurality of transverse holes and inclined blind holes are provided on the valve core mounting seat; the plurality of transverse holes are provided in a ring shape on the upper outer edge of the valve core mounting seat; the inclined blind holes are provided in a ring shape on the lower outer edge of the valve core mounting seat; the number of the transverse holes, the inclined blind holes and the clamping components are the same and correspond one to one;
[0007] The clamping assembly includes a crank arm seat fixed on the valve core mounting seat, a crank arm whose middle part is axially connected to the crank arm seat, whose upper part corresponds to the position of the transverse hole, and whose lower part corresponds to the position of the inclined blind hole, a transverse slide rod slidably arranged in the transverse hole, a second return spring and an inclined slide rod arranged in the inclined blind hole; one end of the inclined slide rod is pressed on the inner side of the crank arm, and the other end of the inclined slide rod is pressed on the second return spring; one end of the transverse slide rod is pressed on the inner side of the upper end of the crank arm, and the other end is pressed on the valve core.
[0008] Furthermore, a lower circular cavity is provided in the center of the valve core mounting seat; the upper part of the lower circular cavity is connected with the upper cavity; and the inner wall of the lower circular cavity is provided with two spiral notches;
[0009] The stirring assembly includes a stirring wall support rod rotatably sleeved in the lower circular cavity, a rotating guide rod arranged on the stirring wall support rod and with its ends correspondingly arranged in two spiral notches, a rotating support disk arranged at the top of the stirring wall support rod and placed in the upper cavity, an extrusion reset support disk rotatably sleeved on the rotating support disk, a first reset spring arranged between the extrusion reset support disk and the lower part of the inner wall of the upper cavity, a plurality of wall connecting rods annularly arranged at the lower part of the stirring wall support rod, and a wall plate arranged at the edge of the wall connecting rod; the wall plate stirs the wall with the inner wall of the solution container; the valve core squeezes the extrusion reset support disk, drives the rotating guide rod to move along the spiral notch and drives the stirring wall support rod to rotate, and compresses the first reset spring.
[0010] Furthermore, a cylinder support seat is arranged between the upper cover plate and the cylinder; a cylinder rod core is arranged in the cylinder; and a valve core connecting seat is arranged between the bottom of the cylinder rod core and the valve core.
[0011] Further, the valve core includes an integrally formed circular tube portion and a conical portion.
[0012] Further, a guide post is provided at the edge of the circular tube portion; a guide notch portion is provided on the inner wall of the upper cavity and arranged along the longitudinal direction; the guide post moves along the direction of the guide notch portion.
[0013] Compared with the prior art, the present utility model has the following beneficial effects:
[0014] (1) By arranging three or four groups of clamping components, under the driving action of the air cylinder and the valve core, the transverse slide bar is squeezed, so that the crank arm clamps on the outer edge of the solution container, ensuring the reliability of its clamping and fixation.
[0015] (2) By arranging the first return spring, spiral notch portion, rotating guide rod, wall-hanging connecting rod and wall-hanging plate, the driving of the valve core rotates the rotating guide rod downward, and is guided and rotated by the spiral notch portion and the rotating guide rod, driving the wall-hanging plate to rotate, so as to realize scraping and stirring of the inner wall of the solution container, and its action is reliable.
[0016] (3) By arranging the first return spring and the second return spring, the actions of the stirring component and the clamping component are reset, and its action is reliable.
[0017] (4) By arranging the guide post and the guide notch portion, the guiding movement of the valve core is realized.
[0018] In summary, the present utility model has the advantages of simple structure and reliable stirring, and has high practical value and promotion value in the technical field of surface interfacial tension testing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope of protection. For those skilled in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.
[0020] Figure 1 It is a schematic structural diagram of the present utility model.
[0021] Figure 2 It is a first cross-sectional schematic diagram of the present utility model.
[0022] Figure 3 It is a second cross-sectional schematic diagram of the present utility model.
[0023] Figure 4This is a schematic structural diagram of the present utility model after removing the valve core mounting seat and the upper cover plate.
[0024] Figure 5 This is a schematic structural diagram of the valve core mounting seat in the present utility model.
[0025] Figure 6 This is a schematic structural diagram of the stirring assembly in the present utility model.
[0026] In the above-mentioned drawings, the component names corresponding to the reference numerals are as follows:
[0027] 1. Valve core mounting seat; 2. Upper cover plate; 3. Cylinder support seat; 4. Cylinder; 5. Solution vessel; 6. Clamping assembly; 7. Stirring assembly; 8. First return spring; 9. Valve core connecting seat; 10. Valve core; 11. Upper cavity; 12. Transverse hole; 13. Inclined blind hole; 14. Lower circular cavity; 15. Spiral notch; 16. Guide notch; 41. Cylinder rod core; 61. Toggle arm seat; 62. Toggle arm; 63. Transverse slide bar; 64. Inclined slide bar; 65. Second return spring; 71. Extrusion return support disk; 72. Stirring wall-hanging support rod; 73. Rotating support disk; 74. Rotating guide rod; 75. Wall-hanging connecting rod; 76. Wall-hanging plate; 101. Circular tube part; 102. Conical part; 103. Guide post. Detailed implementation manners
[0028] To make the objectives, technical solutions and advantages of the present application clearer, the present utility model will be further described below with reference to the drawings and embodiments. The implementation manners of the present utility model include but are not limited to the following embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.
[0029] In this embodiment, the term "and / or" only describes the associated relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone.
[0030] The terms "first" and "second" in the description and claims of this embodiment are used to distinguish different objects, rather than to describe a specific order of the objects. For example, the first target object and the second target object are used to distinguish different target objects, rather than to describe the specific order of the target objects.
[0031] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific manner.
[0032] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality" refers to two or more. For example, a plurality of processing units refers to two or more processing units; a plurality of systems refers to two or more systems.
[0033] As Figures 1 to 6 shown, this embodiment provides a stirring device for testing the surface interfacial tension, which is used to clamp a solution vessel 5 and stir and wall-hang the solution in the solution vessel 5.
[0034] Specifically, the stirring device includes a valve core mounting seat 1, an upper cover plate 2 disposed on the valve core mounting seat 1, a cylinder 4 fixed on the upper cover plate 2, several clamping assemblies 6 annularly disposed on the lower edge of the valve core mounting seat 1, a valve core 10 disposed in the valve core mounting seat 1 and connected to the cylinder 4, a cylinder support seat 3 disposed between the upper cover plate 2 and the cylinder 4, and a stirring assembly 7 disposed at the lower part of the valve core mounting seat 1 for wall-hanging and stirring the inner wall of the solution vessel 5. Among them, a cylinder rod core 41 is disposed in the cylinder 4, and a valve core connecting seat 9 is disposed between the bottom of the cylinder rod core 41 and the valve core 10. In this embodiment, the cylinder 4 is used to drive the valve core 10 to move downward and squeeze to drive the clamping assembly 6 to clamp the edge of the solution vessel 5.
[0035] In this embodiment, an upper cavity 11 is opened in the center of the upper part of the valve core mounting seat 1, and a lower circular cavity 14 is opened in the center of the valve core mounting seat 1. The upper part of the lower circular cavity 14 communicates with the upper cavity 11. Several transverse holes 12 and inclined blind holes 13 are opened in the valve core mounting seat 1. Several transverse holes 12 are annularly opened on the outer edge of the upper part of the valve core mounting seat 1, and several inclined blind holes 13 are annularly opened on the outer edge of the lower part of the valve core mounting seat 1. Among them, the number of transverse holes 12, inclined blind holes 13, and clamping assemblies 6 is the same and they correspond one by one. Two spiral groove openings 15 are opened on the inner wall of the lower circular cavity 14, and the two spiral groove openings 15 are disposed opposite to each other at 180°. In addition, the valve core 10 includes an integrally formed circular tube portion 101 and a conical portion 102. A guiding column 103 is disposed on the edge of the circular tube portion 101, and a guiding groove opening 16 is disposed on the inner wall of the upper cavity 11 along the longitudinal direction. The guiding column 103 moves along the direction of the guiding groove opening 16 to facilitate the guiding movement of the valve core 10.
[0036] In this embodiment, the clamping assembly 6 includes an arm seat 61 fixed on the valve core mounting seat 1, an arm 62 pivotally connected to the arm seat 61 at the middle, corresponding to the position of the horizontal hole 12 at the upper part, and corresponding to the position of the inclined blind hole 13 at the lower part, a horizontal slide bar 63 slidably disposed in the horizontal hole 12, a second return spring 65 and an inclined slide bar 64 disposed in the inclined blind hole 13. Wherein, one end of the inclined slide bar 64 presses against the inner side of the arm 62, and the other end of the inclined slide bar 64 presses against the second return spring 65. In addition, one end of the horizontal slide bar 63 presses against the inner side of the upper end of the arm 62, and the other end presses against the valve core 10.
[0037] In this embodiment, the stirring assembly 7 includes a stirring wall-hanging support rod 72 rotatably sleeved in the lower circular cavity 14, rotating guide rods 74 disposed on the stirring wall-hanging support rod 72 and with ends respectively placed in the openings of two spiral grooves 15, a rotating support disk 73 disposed at the top of the stirring wall-hanging support rod 72 and placed in the upper cavity 11, a pressing and resetting support disk 71 rotatably sleeved on the rotating support disk 73, a first return spring 8 disposed between the pressing and resetting support disk 71 and the lower part of the inner wall of the upper cavity 11, several wall-hanging connecting rods 75 annularly disposed at the lower part of the stirring wall-hanging support rod 72, and a wall-hanging plate 76 disposed at the edge of the wall-hanging connecting rod 75; the wall-hanging plate 76 stirs and hangs on the inner wall of the solution vessel 5. Wherein, the valve core 10 presses against the pressing and resetting support disk 71, drives the rotating guide rod 74 to move along the opening of the spiral groove 15 and drives the stirring wall-hanging support rod 72 to rotate, compressing the first return spring 8.
[0038] The operation process of this embodiment will be briefly described below:
[0039] First, the air cylinder 4 drives the valve core 10 to move downward, and the conical part 102 contacts the horizontal slide bar 63; until the circular tube part 101 presses against the horizontal slide bar 63, and the lower inner side of the arm 62 clamps on the solution vessel 5.
[0040] Then, the air cylinder 4 drives the valve core 10 to continue moving downward, and the horizontal slide bar 63 presses against the circular tube part 101. Since the diameter of the circular tube part 101 remains unchanged, the arm 62 remains clamped and does not rotate. When the lower part of the conical part 102 presses against the pressing and resetting support disk 71, under the guiding action of the rotating guide rod 74 and the spiral groove opening 15, the rotating support disk 73 at the upper part of the stirring wall-hanging support rod 72 is rotatably connected to the pressing and resetting support disk 71, and the wall-hanging connecting rods 75 and the wall-hanging plate 76 at the lower part of the stirring wall-hanging support rod 72 perform wall-hanging stirring.
[0041] When it is necessary to release the stirring and clamping, the valve core 10 moves upward, the first return spring 8 resets, and similarly under the guiding action of the rotating guide rod 74 and the spiral groove opening 15, the stirring wall-hanging support rod 72 rotates until the lower part of the conical part 102 leaves the pressing and resetting support disk 71.
[0042] The valve core 10 continues to move upward, so that the transverse slide bar 63 presses against the conical portion 102. Under the action of the second return spring 65, the crank arm 62 tilts upward, and the extrusion clamping of the solution vessel 5 is released.
[0043] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention. Any changes made by adopting the design principle of the present invention and non-creative labor on this basis shall fall within the protection scope of the present invention.
Claims
1. A stirring device for measuring surface interfacial tension, which is used to clamp a solution container (5) and stir and wall-hang the solution in the solution container (5), and is characterized in that, The invention comprises a valve core mounting seat (1), an upper cover plate (2) arranged on the valve core mounting seat (1), a cylinder (4) fixed on the upper cover plate (2), a plurality of clamping assemblies (6) arranged in an annular manner on the lower edge of the valve core mounting seat (1), a valve core (10) arranged in the valve core mounting seat (1) and connected to the cylinder (4), and a stirring assembly (7) arranged at the lower part of the valve core mounting seat (1) and stirring the inner wall of a solution container (5); the clamping assembly (6) clamps the edge of the solution container (5); the cylinder (4) drives the valve core (10) and drives the clamping assembly (6) and the stirring assembly (7) in a linked manner.
2. The stirring device for surface and interfacial tension testing according to claim 1, wherein An upper cavity (11) is provided in the center of the upper portion of the valve core mounting seat (1); a plurality of transverse holes (12) and inclined blind holes (13) are provided on the valve core mounting seat (1); the plurality of transverse holes (12) are provided in a ring shape on the upper outer edge of the valve core mounting seat (1); the inclined blind holes (13) are provided in a ring shape on the lower outer edge of the valve core mounting seat (1); the number of the transverse holes (12), the inclined blind holes (13) and the clamping components (6) are the same and correspond one to one; The clamping assembly (6) comprises a crank arm seat (61) fixed on the valve core mounting seat (1), a crank arm (62) whose middle part is axially connected to the crank arm seat (61), whose upper part corresponds to the position of the transverse hole (12) and whose lower part corresponds to the position of the inclined blind hole (13), a transverse slide bar (63) slidably arranged in the transverse hole (12), and a second return spring (65) and an inclined slide bar (64) arranged in the inclined blind hole (13); one end of the inclined slide bar (64) is pressed on the inner side of the crank arm (62), and the other end of the inclined slide bar (64) is pressed on the second return spring (65); one end of the transverse slide bar (63) is pressed on the inner side of the upper end of the crank arm (62), and the other end is pressed on the valve core (10).
3. The stirring device for surface and interfacial tension testing according to claim 2, characterized in that, A lower circular cavity (14) is provided in the center of the valve core mounting seat (1); the upper portion of the lower circular cavity (14) is connected to the upper cavity (11); and two spiral notches (15) are provided on the inner wall of the lower circular cavity (14); The stirring assembly (7) includes a stirring wall-hanging support rod (72) rotatably sleeved in the lower circular cavity (14), rotating guide rods (74) arranged on the stirring wall-hanging support rod (72) and with their ends respectively placed in two spiral notch parts (15), a rotating support disc (73) arranged at the top of the stirring wall-hanging support rod (72) and placed in the upper cavity (11), a pressing and resetting support disc (71) rotatably sleeved on the rotating support disc (73), a first reset spring (8) arranged between the pressing and resetting support disc (71) and the lower part of the inner wall of the upper cavity (11), several wall-hanging connecting rods (75) annularly arranged at the lower part of the stirring wall-hanging support rod (72), and a wall-hanging plate (76) arranged at the edge of the wall-hanging connecting rod (75); the wall-hanging plate (76) stirs and hangs on the inner wall of the solution vessel (5); the valve core (10) presses the pressing and resetting support disc (71), drives the rotating guide rod (74) to move along the spiral notch part (15) and drives the stirring wall-hanging support rod (72) to rotate, compressing the first reset spring (8).
4. A stirring device for measuring surface and interfacial tension according to claim 1 or 2 or 3, characterized in that, A cylinder support seat (3) is arranged between the upper cover plate (2) and the cylinder (4); a cylinder rod core (41) is arranged in the cylinder (4); a valve core connecting seat (9) is arranged between the bottom of the cylinder rod core (41) and the valve core (10).
5. The stirring device for surface and interfacial tension testing according to claim 2 or 3, characterized in that, The valve core (10) includes an integrally formed circular tube part (101) and a conical part (102).
6. The stirring device for surface and interfacial tension testing according to claim 5, wherein A guide post (103) is arranged at the edge of the circular tube part (101); a guide notch part (16) is arranged on the inner wall of the upper cavity (11) along the longitudinal direction; the guide post (103) moves along the direction of the guide notch part (16).