CN210533935U

CN210533935U - Contact angle measuring instrument suitable for tiny sample

Info

Publication number: CN210533935U
Application number: CN201921309007.6U
Authority: CN
Inventors: 冼健威
Original assignee: Dongguan Sindin Precision Instrument Co ltd
Current assignee: Dongguan Sindin Precision Instrument Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-15
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a contact angle measuring instrument suitable for tiny samples, which comprises a bottom plate, wherein a first rectangular block and a second rectangular block are symmetrically fixed at two ends of the top surface of the bottom plate, a zoom lens is arranged on the top surface of the first rectangular block, a rectangular mounting plate is arranged at the end part of the second rectangular block, a microinjection device is arranged at the end part of the rectangular mounting plate, a cylindrical block is fixed at the top surface of the bottom plate below the output end of the microinjection device, a gear is meshed at one side of a rack, a handle is connected at one side of the gear through a pin rod key, an L-shaped mounting plate is arranged on the outer wall at one side of a movable block, a sample plate is arranged on the top surface of the L-shaped mounting plate, and an LED lamp is arranged on the inner wall of the second rectangular block at one side of the sample plate, the utility model ensures that the, the imaging is not distorted, the accuracy of the appearance profile data is ensured, and the small repeated measurement error is ensured.

Description

Contact angle measuring instrument suitable for tiny sample

Technical Field

The utility model relates to a contact angle measuring apparatu technical field, concretely relates to contact angle measuring apparatu suitable for tiny sample.

Background

The contact angle is an angle formed by two tangents of a gas-liquid interface and a solid-liquid interface at a solid-liquid-gas three-phase boundary point on the surface of a solid when a liquid drop is dropped on a horizontal plane of the solid to clamp a liquid phase. The contact angle tester is mainly used for measuring the contact angle of liquid to solid, namely the wettability of the liquid to the solid, and can measure the contact angle of various liquids to various materials.

At present, most of contact angle measuring instruments for measuring fine samples on the market are not perfect, the limit measurement width cannot meet the industrial requirement, and especially for the contact angle measurement of a single fiber, the contact angle measuring instrument cannot be used for measuring basically. It may even occur that the droplet is too large to exceed the width of the sample and the measured data does not truly reflect the contact angle of the sample. The lens of the contact angle measuring instrument cannot amplify the contact angle or the contact angle of the sample cannot be accurately measured due to unclear imaging contour after the lens is amplified by the specific magnification.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a contact angle measuring apparatu suitable for tiny sample for solve the most contact angle measuring apparatu that are used for measuring tiny sample on the market that mentions in the above-mentioned background art not very perfect yet, the limit is measured the width and can't reach the trade demand, especially is measured to single fibrous contact angle, can't measure basically. It may even occur that the droplet is too large to exceed the width of the sample and the measured data does not truly reflect the contact angle of the sample. The lens of the contact angle measuring instrument cannot amplify the contact angle, or after the contact angle measuring instrument amplifies the contact angle, the imaging contour is not clear, and the contact angle of a sample cannot be accurately measured.

In order to achieve the above object, the utility model provides a following technical scheme: a contact angle measuring instrument suitable for a tiny sample comprises a bottom plate, wherein a first rectangular block and a second rectangular block are symmetrically fixed at two ends of the top surface of the bottom plate, the top surface of the first rectangular block is provided with a zoom lens, the end part of the second rectangular block is provided with a rectangular mounting plate, a micro-injection device is arranged at the end part of the rectangular mounting plate, a cylindrical block is fixed below the output end of the micro-injection device and on the top surface of the bottom plate, the top surface of the cylindrical block is integrally formed with a rack, the outer wall of the cylindrical block is sleeved with a movable block, one side of the rack is engaged with a gear, one side of the gear is connected with a handle through a pin-rod key, install L type mounting panel on one side outer wall of movable block, the sample board is installed to the top surface of L type mounting panel, install the LED lamp on one side of sample board is located the inner wall of second rectangle piece.

Preferably, the microinjection device includes the liquid reserve tank, the drain pipe is installed to the bottom of liquid reserve tank, the capillary is installed to the tip of drain pipe, sliding connection has the block rubber on the inner wall of liquid reserve tank, the inside inlaying of top surface of block rubber has the bearing, the inside interference of bearing is connected with the threaded rod, the top surface key-type connection that the liquid reserve tank was run through to the outer wall spiro union of threaded rod has the plectane, the inlet has been seted up on one side outer wall of liquid reserve tank.

Preferably, a cavity matched with the rack and the gear is formed in the movable block.

Preferably, the L-shaped mounting plate is mounted on the top surface of the sample plate by screws.

Preferably, the bottom of the bottom plate is adhered with four groups of rubber pads through glue, and the four groups of rubber pads are symmetrically arranged.

Preferably, the zoom lens and the LED lamp are at the same horizontal height.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model ensures that the measured data is real and accurate, has strong reliability, has no distortion of imaging, ensures the accuracy of the appearance profile data, and ensures that the repeated measurement error is small;

2. the utility model discloses earlier drive the gear through the handle and rotate, at this moment the gear will drive the movable block rebound, thereby adjust the height of sample board, then in passing through the inlet with liquid and pouring into the liquid reserve tank, at this moment through the plectane rotatory threaded rod under the effect of bearing, at this moment the threaded rod will drive the liquid pressurization of rubber piece rebound to the liquid reserve tank, at this moment the liquid that lies in the liquid reserve tank will drop the top surface of sample board through the capillary through the drain pipe, at this moment open LED lamp and camera and pass through zoom, the camera is connected with outside display device, just so can observe and detect the contact angle, the true accurate good reliability that the data that measure out like this can be more, simultaneously the undistorted formation of image, guarantee that appearance profile data is accurate, and guarantee that repeated measuring error is little.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of a microinjection apparatus of the present invention;

fig. 4 is a sectional view of the movable block of the present invention.

In the figure: 1. a base plate; 2. a first rectangular block; 3. a second rectangular block; 4. a zoom lens; 5. a rectangular mounting plate; 6. a microinjection device; 601. a liquid storage tank; 602. a liquid outlet pipe; 603. a capillary tube; 604. a rubber block; 605. a bearing; 606. a threaded rod; 607. a circular plate; 608. a liquid inlet; 7. a cylindrical block; 8. a rack; 9. a movable block; 10. a gear; 11. a handle; 12. an L-shaped mounting plate; 13. a sample plate; 14. an LED lamp; 15. a cavity; 16. a screw; 17. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a technical scheme as shown in figures 1-4, a contact angle measuring instrument suitable for tiny samples, which comprises a bottom plate 1, wherein a first rectangular block 2 and a second rectangular block 3 are symmetrically fixed at two ends of the top surface of the bottom plate 1, a zoom lens 4 is installed on the top surface of the first rectangular block 2, a rectangular mounting plate 5 is installed at the end part of the second rectangular block 3, a microinjection device 6 is installed at the end part of the rectangular mounting plate 5, a cylindrical block 7 is fixed on the top surface of the bottom plate 1 below the output end of the microinjection device 6, a rack 8 is integrally formed on the top surface of the cylindrical block 7, a movable block 9 is sleeved on the outer wall of the cylindrical block 7, a gear 10 is meshed at one side of the rack 8, a handle 11 is connected at one side of the gear 10 through a pin-bar key, an L-shaped mounting plate 12 is installed on the outer wall at one side of the movable, a sample plate 13 is installed on the top surface of the L-shaped installation plate 12, and an LED lamp 14 is installed on the inner wall of the second rectangular block 3 on one side of the sample plate 13.

Specifically, microinjection device 6 includes liquid reserve tank 601, drain pipe 602 is installed to the bottom of liquid reserve tank 601, capillary 603 is installed to the tip of drain pipe 602, sliding connection has block rubber 604 on the inner wall of liquid reserve tank 601, inside inlaying of top surface of block rubber 604 has bearing 605, bearing 605's inside interference is connected with threaded rod 606, the top surface key-type connection that the outer wall spiro union of threaded rod 606 runs through liquid reserve tank 601 has plectane 607, inlet 608 has been seted up on one side outer wall of liquid reserve tank 601, can drive block rubber 604 downstream under bearing 605's effect through rotating plectane 607 like this, flows out liquid through capillary 603 through drain pipe 602, can control the width of dropping liquid like this.

Specifically, the cavity 15 matched with the rack 8 and the gear 10 is formed in the movable block 9, so that the height can be finely adjusted conveniently, and the use is more flexible and convenient.

Specifically, the L-shaped mounting plate 12 is mounted on the top surface of the sample plate 13 through a screw 16, so that the mounting and dismounting can be conveniently performed, and the mounting is simpler and more convenient.

Specifically, rubber pad 17 has been pasted through glue in the bottom of bottom plate 1, rubber pad 17 symmetry is provided with four groups, can be convenient for like this place, can make simultaneously place more stable.

Specifically, the zoom lens 4 and the LED lamp 14 are at the same horizontal height, so that the zoom lens 4 can conveniently fill light during collection, and imaging can be more clear.

The working principle is as follows: when the device is used, the gear 10 is driven to rotate by the handle 11, at this time, the gear 10 drives the movable block 9 to move upwards, so that the height of the sample plate 13 is adjusted, then liquid is injected into the liquid storage tank 601 through the liquid inlet 608, at this time, the screw rod 606 is rotated under the action of the bearing 605 through the circular plate 607, at this time, the screw rod 606 drives the rubber block 604 to move downwards to pressurize the liquid in the liquid storage tank 601, at this time, the liquid in the liquid storage tank 601 is dripped to the top surface of the sample plate 13 through the liquid outlet pipe 602 and the capillary pipe 603, at this time, the LED lamp 14 and the camera are turned on to detect liquid droplets through the zoom lens 4, at this time, the camera is connected with an external display device, so that the contact angle of the droplets can be observed and detected, the measured data can be more real and accurate, the reliability is, the accuracy of the appearance profile data is ensured, and the small repeated measurement error is ensured.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A contact angle measuring instrument suitable for a fine sample, comprising a base plate (1), characterized in that: the bottom plate is characterized in that a first rectangular block (2) and a second rectangular block (3) are symmetrically fixed at two ends of the top surface of the bottom plate (1), a zoom lens (4) is installed on the top surface of the first rectangular block (2), a rectangular mounting plate (5) is installed at the end portion of the second rectangular block (3), a microinjection device (6) is installed at the end portion of the rectangular mounting plate (5), a cylindrical block (7) is fixed on the top surface of the bottom plate (1) below the output end of the microinjection device (6), a rack (8) is integrally formed on the top surface of the cylindrical block (7), a movable block (9) is sleeved on the outer wall of the cylindrical block (7), a gear (10) is meshed at one side of the rack (8), a handle (11) is connected at one side of the gear (10) through a pin rod key, and an L-shaped mounting plate (12) is installed on the outer wall of one, sample board (13) are installed to the top surface of L type mounting panel (12), install LED lamp (14) on one side of sample board (13) is located the inner wall of second rectangle piece (3).

2. A contact angle measuring instrument suitable for a fine sample according to claim 1, wherein: microinjection device (6) include liquid reserve tank (601), drain pipe (602) are installed to the bottom of liquid reserve tank (601), capillary (603) are installed to the tip of drain pipe (602), sliding connection has rubber block (604) on the inner wall of liquid reserve tank (601), the inside inlaying of top surface of rubber block (604) has bearing (605), the inside interference of bearing (605) is connected with threaded rod (606), the top surface key connection that the outer wall spiro union of threaded rod (606) runs through liquid reserve tank (601) has plectane (607), inlet (608) have been seted up on one side outer wall of liquid reserve tank (601).

3. A contact angle measuring instrument suitable for a fine sample according to claim 1, wherein: and a cavity (15) matched with the rack (8) and the gear (10) is formed in the movable block (9).

4. A contact angle measuring instrument suitable for a fine sample according to claim 1, wherein: the L-shaped mounting plate (12) is mounted on the top surface of the sample plate (13) through screws (16).

5. A contact angle measuring instrument suitable for a fine sample according to claim 1, wherein: rubber pads (17) are adhered to the bottom of the bottom plate (1) through glue, and four groups of the rubber pads (17) are symmetrically arranged.

6. A contact angle measuring instrument suitable for a fine sample according to claim 1, wherein: the zoom lens (4) and the LED lamp (14) are located at the same horizontal height.