Interface tension tester

Abstract

The utility model discloses an interfacial tension determinator, which relates to the technical field of tension determination and comprises an operating table, a first sliding groove is arranged at the top of the operating table, a base is fixedly connected to the bottom of the operating table, a protection mechanism is arranged on the operating table, a clamping mechanism is arranged on the protection mechanism, and a clamping mechanism is arranged on the clamping mechanism. A measuring mechanism is arranged above the operation table; the protection mechanism comprises a two-way threaded rod, the two-way threaded rod is rotationally connected to the interior of the operation table, and one end of the two-way threaded rod penetrates through the outer wall of the operation table and extends. The rotary knob is rotated anticlockwise, the rotary knob drives the two-way threaded rod to rotate, the two-way threaded rod rotates anticlockwise to enable the two sliding blocks to be close to each other, so that the push plates are driven to be close to each other, the push plates drive the protective covers to be close to each other along the sliding rods, the two protective covers are in contact, and a sample cup can be effectively protected; and the influence of surrounding air flow on the detection result is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of tension measurement technology, and in particular relates to an interfacial tension measuring instrument. Background Technology

[0002] An interfacial tension meter (also known as a surface tension meter) is an experimental instrument used to measure the interfacial tension between liquids and solids or between liquids. It is commonly used in physics, chemistry, materials science, and other fields, and is particularly widely applied in surface chemistry, fluid mechanics, detergents, coatings, the petroleum industry, as well as the pharmaceutical and food industries.

[0003] Existing interfacial tension measuring instruments mainly consist of key components such as a torsion wire, a platinum ring, a microcontroller, a display, an electronic measuring instrument, a zeroing device, a test worm gear pair, and a sample cup. In some existing tension measuring instruments, the surrounding airflow may cause large errors in the test results during measurement. Therefore, we propose an interfacial tension measuring instrument. Utility Model Content

[0004] The purpose of this invention is to provide an interfacial tension measuring instrument. By rotating the knob counterclockwise, the protective covers move closer together along the slide bar until they make contact, thus solving the problem that the surrounding airflow may cause large errors in the test results.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an interfacial tension measuring instrument, including an operating table, a first sliding groove on the top of the operating table, a base fixedly connected to the bottom of the operating table, a protective mechanism on the operating table, a clamping mechanism on the protective mechanism, and a measuring mechanism above the operating table.

[0007] The protective mechanism includes a bidirectional threaded rod rotatably connected inside the operating table. One end of the bidirectional threaded rod passes through the outer wall of the operating table and extends outward. A knob is fixedly connected to the end of the bidirectional threaded rod away from the operating table. A slider is threadedly connected to the outer wall of the bidirectional threaded rod. The top of the slider is slidably connected inside a first slide groove. A push plate is fixedly connected to the top of the slider. A protective cover is fixedly connected to the side of the push plate near the center of the operating table. A mounting bracket is fixedly connected to the top of the operating table. A sliding rod is fixedly connected to the side of the mounting bracket near the protective cover. The inner wall of the protective cover is slidably connected to the outer wall of the sliding rod.

[0008] Furthermore, there are two sliders, which are symmetrically arranged around the center of the bidirectional threaded rod. There are two sliders, two push plates, and two protective covers.

[0009] Furthermore, the clamping mechanism includes a connecting rod, the outer wall of which is slidably connected to the inside of the protective cover, and a clamping ring is fixedly connected to the end of the protective cover away from the mounting bracket.

[0010] Furthermore, a spring is fixedly connected to the side of the clamping ring near the protective cover, the connecting rod is located inside the spring, and the end of the spring away from the clamping ring is fixedly connected to the protective cover.

[0011] Furthermore, a baffle is fixedly connected to the end of the connecting rod away from the clamping ring, and the side of the baffle close to the connecting rod contacts the outer wall of the protective cover.

[0012] Furthermore, a support rod is fixedly connected to the top of the operating table, and a placement platform is fixedly connected to the end of the support rod away from the operating table. A top frame is fixedly connected to the top of the operating table.

[0013] Furthermore, the measuring mechanism includes a measuring instrument body, the bottom of which is fixedly connected to the top of the top frame, and a display screen is provided on the measuring instrument body.

[0014] Furthermore, a hydraulic rod is fixedly connected to the side of the main body of the measuring instrument near the operating table, a suspension rope is fixedly connected to the output end of the hydraulic rod, and a platinum ring is fixedly connected to the end of the suspension rope away from the hydraulic rod.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model uses a counterclockwise rotating knob to rotate a bidirectional threaded rod. The counterclockwise rotation of the bidirectional threaded rod causes the two sliders to move closer together, which in turn causes the push plates to move closer together. The push plates then cause the protective covers to move closer together along the sliding rod, thus bringing the two protective covers into contact. This effectively protects the sample cup and reduces the impact of surrounding airflow on the test results.

[0017] 2. When the protective cover moves, the clamping mechanism moves. Because the distance between the two clamping rings is less than the distance between the two protective covers, the clamping rings will contact the sample cup first. As the protective cover continues to move closer, the sample cup will block it. At this time, the protective cover will continue to move closer to each other and compress the spring. The spring reaction force is applied to the clamping ring, which can fix the sample cup and prevent the sample cup from shaking due to the fluctuation of the liquid during the process of the platinum ring falling into the liquid and rising in the liquid.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the operating table of this utility model;

[0022] Figure 3 This is a schematic diagram of the protective mechanism structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the measuring mechanism of this utility model;

[0025] Figure 6 This is a schematic diagram of the platinum ring structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Operating table; 11. First slide groove; 12. Base; 2. Protective mechanism; 201. Bidirectional threaded rod; 202. Knob; 203. Slider; 204. Push plate; 205. Protective cover; 206. Mounting bracket; 207. Slide rod; 3. Clamping mechanism; 301. Connecting rod; 302. Clamping ring; 303. Spring; 304. Baffle; 4. Support rod; 41. Placement platform; 42. Top frame; 5. Measuring mechanism; 501. Measuring instrument body; 502. Display screen; 503. Hydraulic rod; 504. Suspension rope; 505. Platinum ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6As shown, this utility model is an interfacial tension measuring instrument, including an operating table 1, a first sliding groove 11 on the top of the operating table 1, a base 12 fixedly connected to the bottom of the operating table 1, a protective mechanism 2 on the operating table 1, a clamping mechanism 3 on the protective mechanism 2, and a measuring mechanism 5 on the top of the operating table 1.

[0030] The protective mechanism 2 includes a bidirectional threaded rod 201, which is rotatably connected inside the operating table 1. One end of the bidirectional threaded rod 201 extends through the outer wall of the operating table 1. A knob 202 is fixedly connected to the end of the bidirectional threaded rod 201 away from the operating table 1. Rotating the knob 202 counterclockwise causes the bidirectional threaded rod 201 to rotate. A slider 203 is threadedly connected to the outer wall of the bidirectional threaded rod 201. The counterclockwise rotation of the bidirectional threaded rod 201 causes the two sliders 203 to move closer together, thereby causing the push plate 204 to move closer together. The top of the slider 203 is slidably connected inside the first slide groove 11. The top of the slider 203 is fixedly connected to the push plate 204. The push plate 204 moves closer to the operating table 1. A protective cover 205 is fixedly connected to one side of the center of the platform 1. The push plate 204 drives the protective covers 205 to move closer to each other along the slide rod 207, so that the two protective covers 205 come into contact, which can effectively protect the sample cup and reduce the influence of the surrounding air flow on the test results. A mounting bracket 206 is fixedly connected to the top of the operating platform 1. A slide rod 207 is fixedly connected to the side of the mounting bracket 206 near the protective cover 205. The inner wall of the protective cover 205 is slidably connected to the outer wall of the slide rod 207. There are two sliders 203. The two sliders 203 are symmetrically arranged around the center of the bidirectional threaded rod 201. There are two sliders 203, two push plates 204, and two protective covers 205.

[0031] The clamping mechanism 3 includes a connecting rod 301, whose outer wall is slidably connected to the inside of the protective cover 205. When the protective cover 205 moves, it will drive the clamping mechanism 3 to move. Because the distance between the two clamping rings 302 is less than the distance between the two protective covers 205, the clamping rings 302 will contact the sample cup first. The clamping rings 302 are fixedly connected to the end of the protective cover 205 away from the mounting bracket 206. A spring 303 is fixedly connected to the side of the clamping rings 302 near the protective cover 205. The connecting rod 301 is located inside the spring 303, and the spring 303 is away from the clamping rings 302. One end of the 2 is fixedly connected to the protective cover 205. When the protective cover 205 continues to approach, the sample cup will compress the spring 303 due to the obstruction of the sample cup. The reaction force of the spring 303 is applied to the clamping ring 302, which can fix the sample cup and prevent the sample cup from shaking due to the fluctuation of the liquid during the process of the platinum ring falling into the liquid and rising in the liquid. The end of the connecting rod 301 away from the clamping ring 302 is fixedly connected to the baffle 304. The side of the baffle 304 near the connecting rod 301 contacts the outer wall of the protective cover 205.

[0032] A support rod 4 is fixedly connected to the top of the operating table 1. A placement platform 41 is fixedly connected to the end of the support rod 4 away from the operating table 1. A sample cup containing the sample is placed on the placement platform 41. A top frame 42 is fixedly connected to the top of the operating table 1.

[0033] The measuring mechanism 5 includes a measuring instrument body 501, the bottom of which is fixedly connected to the top of the top frame 42. A display screen 502 is installed on the measuring instrument body 501. A hydraulic rod 503 is fixedly connected to the side of the measuring instrument body 501 near the operating table 1. A suspension rope 504 is fixedly connected to the output end of the hydraulic rod 503. A platinum ring 505 is fixedly connected to the end of the suspension rope 504 away from the hydraulic rod 503. Then, the hydraulic rod 503 is activated to descend, and the suspension rope 504 and the platinum ring 505 will fall into the sample cup due to gravity. Then, the hydraulic rod 503 is activated to slowly retract, thereby completing the measurement.

[0034] One specific application of this embodiment is:

[0035] In use, place the sample cup containing the sample on the placement stage 41, and then rotate the knob 202 counterclockwise. The knob 202 drives the bidirectional threaded rod 201 to rotate. The counterclockwise rotation of the bidirectional threaded rod 201 causes the two sliders 203 to move closer together, which in turn causes the push plate 204 to move closer together. The push plate 204 causes the protective cover 205 to move closer together along the slide rod 207, so that the two protective covers 205 come into contact, which can effectively protect the sample cup and reduce the influence of surrounding airflow on the test results. When the protective cover 205 moves, it will drive the clamping mechanism 3 to move. Because the distance between the two clamping rings 302 is less than two... The distance between the protective covers 205 is such that the clamping ring 302 will first contact the sample cup. As the protective covers 205 continue to approach, the sample cup will block them, causing the protective covers 205 to continue to move closer together and compress the spring 303. The reaction force of the spring 303 is applied to the clamping ring 302, which can fix the sample cup and prevent the sample cup from shaking due to the fluctuation of the liquid during the process of the platinum ring falling into the liquid and rising in the liquid. Then, the hydraulic rod 503 is activated to descend, and the suspension rope 504 and the platinum ring 505 will fall into the sample cup due to gravity. Then, the hydraulic rod 503 is activated to slowly retract, thereby completing the measurement.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An interfacial tension meter, comprising an operating table (1), the top of the operating table (1) is provided with a first sliding groove (11), and the bottom of the operating table (1) is fixedly connected with a base (12), characterized in that: The operating table (1) is provided with a protection mechanism (2), the protection mechanism (2) is provided with a clamping mechanism (3), and the operating table (1) is provided with a measuring mechanism (5) above. The protection mechanism (2) comprises a bidirectional threaded rod (201), the bidirectional threaded rod (201) is rotationally connected inside the operating table (1), one end of the bidirectional threaded rod (201) penetrates the outer wall of the operating table (1) and extends, the end of the bidirectional threaded rod (201) away from the operating table (1) is fixedly connected with a knob (202), the outer wall of the bidirectional threaded rod (201) is threadedly connected with a sliding block (203), the top of the sliding block (203) is slidingly connected inside the first sliding groove (11), the top of the sliding block (203) is fixedly connected with a push plate (204), the side of the push plate (204) close to the center of the operating table (1) is fixedly connected with a protective cover (205), the top of the operating table (1) is fixedly connected with a mounting frame (206), the side of the mounting frame (206) close to the protective cover (205) is fixedly connected with a sliding rod (207), and the inner wall of the protective cover (205) is slidingly connected with the outer wall of the sliding rod (207).

2. An interfacial tensiometer according to claim 1, characterized in that The two sliding blocks (203) are symmetrically arranged at the center of the bidirectional threaded rod (201), and the two push plates (204) are arranged.

3. An interfacial tensiometer according to claim 1, wherein The clamping mechanism (3) comprises a connecting rod (301), the connecting rod (301) is slidingly connected inside the protective cover (205), and the end of the protective cover (205) away from the mounting frame (206) is fixedly connected with a clamping ring (302).

4. An interfacial tensiometer according to claim 3, wherein, The side of the clamping ring (302) close to the protective cover (205) is fixedly connected with a spring (303), the connecting rod (301) is located inside the spring (303), and the end of the spring (303) away from the clamping ring (302) is fixedly connected with the protective cover (205).

5. An interfacial tensiometer according to claim 4, wherein, The end of the connecting rod (301) away from the clamping ring (302) is fixedly connected with a baffle (304), and the side of the baffle (304) close to the connecting rod (301) is in contact with the outer wall of the protective cover (205).

6. An interfacial tensiometer according to claim 1, wherein The top of the operating table (1) is fixedly connected with a supporting rod (4), the end of the supporting rod (4) away from the operating table (1) is fixedly connected with a placing table (41), and the top of the operating table (1) is fixedly connected with a top frame (42).

7. An interfacial tensiometer according to claim 1, wherein The measuring mechanism (5) comprises a measuring instrument main body (501), the bottom of the measuring instrument main body (501) is fixedly connected to the top of the top frame (42), and the measuring instrument main body (501) is provided with a display screen (502).

8. An interfacial tensiometer according to claim 7, wherein, The side of the measuring instrument main body (501) close to the operating table (1) is fixedly connected with a hydraulic rod (503), the output end of the hydraulic rod (503) is fixedly connected with a lifting rope (504), and the end of the lifting rope (504) away from the hydraulic rod (503) is fixedly connected with a platinum ring (505).

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