CN216695969U

CN216695969U - Hand-held type contact angle measuring apparatu

Info

Publication number: CN216695969U
Application number: CN202122965762.3U
Authority: CN
Inventors: 陶维春
Original assignee: Oulanda Instrument Technology Suzhou Co ltd
Current assignee: Oulanda Instrument Technology Suzhou Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-07
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a handheld contact angle measuring instrument, which relates to the field of measuring instruments and adopts the technical scheme that: including the open casing in bottom, the inboard of casing is fixed with the support, one side of support is fixed with the application of sample ware that has the drip needle, be provided with the drive assembly who is used for promoting the application of sample ware dropping liquid on the support, the opposite side of support is fixed with the lead screw slip table, be fixed with the visual identification module on the output of lead screw slip table, the one side that the visual identification module was kept away from to the drip needle that is located in the casing is provided with the light source, still be provided with the battery with light source electric connection in the casing, be provided with the dropping liquid knob and the visual module adjust knob of being connected with drive assembly and lead screw slip table on the casing respectively. The utility model can be directly placed on the surface of a sample for measurement, is not limited by the size of the sample, does not need to cut the sample, has small volume, can be held by a single hand, is convenient to carry, and is suitable for mobile measurement in special operation environments such as outdoor environment, assembly line production line environment and the like.

Description

Hand-held type contact angle measuring apparatu

Technical Field

The utility model relates to the field of measuring instruments, in particular to a handheld contact angle measuring instrument.

Background

The contact angle measuring instrument is mainly used for measuring the contact angle of liquid to solid, namely the wettability of the liquid to the solid, can measure the contact angle of various liquids to various materials, and has very important function on scientific research and production in industries such as petroleum, printing and dyeing, medicine, spraying, mineral separation and the like.

However, most contact angle measuring instruments in the prior art are arranged in a fixed mode, have large volume and are inconvenient to carry, and can only measure products with small volume, and for large-size products (such as glass, liquid crystal screens, car bodies, bathtubs and the like), only part of samples can be taken for measurement, and nondestructive and mobile measurement cannot be achieved.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a handheld contact angle measuring instrument which can be directly placed on the surface of a sample for measurement, is not limited by the size of the sample, does not need to cut the sample, has small volume, can be held by a single hand, is convenient to carry, and is suitable for mobile measurement in special operation environments such as outdoor and assembly line production lines.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a hand-held type contact angle measuring apparatu, includes the open casing in bottom, the inboard of casing is fixed with the support, one side of support is fixed with the injector, be provided with the drip needle on the injector, the drip needle sets up towards the uncovered department of casing, be provided with the drive assembly who is used for promoting injector dropping liquid or imbibition on the support, the opposite side of support is fixed with the lead screw slip table, be fixed with the visual identification module who is arranged in detecting the drip needle in the output of lead screw slip table and drip out the liquid drop, the one side that the visual identification module was kept away from to the drop needle that is located in the casing is provided with the light source, still be provided with the battery with light source electric connection in the casing, be provided with dropping liquid knob and the visual module adjust knob of being connected with drive assembly and lead screw slip table on the casing respectively.

In one of them embodiment, the vision recognition module is including fixing the camera fixing base on lead screw slip table output, fixing the vision camera on the camera fixing base and the corner ware that communicates with vision camera light path, the plane at the uncovered place of vision camera and casing is perpendicular, contained angle between corner ware and the vision camera is greater than 90 degrees, still be provided with the data serial ports on the casing, pass through cable electric connection between data serial ports and the vision camera.

In one embodiment, the applicator includes a barrel, a plunger slidably coupled within the barrel, and a plunger rod fixedly coupled to the plunger.

In one embodiment, the driving assembly comprises a screw rod rotatably connected to the support and a driving block fixedly connected with the piston rod, a thread groove is formed in the driving block, one end, far away from the support, of the screw rod is connected in the thread groove in a threaded mode, and the dropping knob is fixedly connected with the screw rod.

In one embodiment, a light source knob for controlling a light source switch or brightness adjustment is disposed on the housing, and the light source knob is electrically connected to the battery and the light source.

In conclusion, the utility model has the following beneficial effects: 1. when the device is used, the vision identification module is connected with a computer only through a serial port data line, so that a measurement result can be analyzed through computer upper computer software, and the device is small in size, can be held by a single hand, accords with the principle of human engineering, and is convenient to carry; 2. when a sample needs to be measured, the device is directly placed on the surface of the sample for measurement, is not limited by the size of the sample, does not need to cut the sample, is suitable for mobile measurement in special operation environments such as outdoor environment, assembly line production line environment and the like, and has the advantages of convenience in use and wide application range.

Drawings

Fig. 1 is a schematic structural diagram of a handheld contact angle measuring instrument according to an embodiment of the present application;

fig. 2 is a schematic internal structural diagram of a handheld contact angle measuring instrument according to an embodiment of the present application.

In the figure: 1. a housing; 2. a liquid dropping knob; 3. a vision module adjusting knob; 4. a data serial port; 5. a light source knob; 6. a support; 7. a sample injector; 71. a drip needle; 8. a drive assembly; 81. a screw; 82. a drive block; 9. a visual recognition module; 91. a camera fixing base; 92. a vision camera; 93. a corner device; 10. a screw rod sliding table; 11. a battery; 12. a light source.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, an embodiment of the present application provides a hand-held contact angle measuring instrument including a housing 1 whose bottom is open. The inboard of casing 1 is fixed with support 6, one side of support 6 is fixed with application of sample ware 7, be provided with drip needle 71 on the application of sample ware 7, drip needle 71 sets up towards the uncovered department of casing 1, be provided with on the support 6 and be used for promoting the drive assembly 8 of application of sample ware 7 dropping liquid or imbibition. And a screw rod sliding table 10 is fixed on the other side of the support 6, and a visual identification module 9 for detecting dripping liquid drops in the liquid dripping needle 71 is fixed on the output end of the screw rod sliding table 10. A light source 12 is arranged on one side of the casing 1, which is far away from the visual identification module 9, of the drip needle 71, and a battery 11 electrically connected with the light source 12 is further arranged in the casing 1. The shell 1 is provided with a liquid dropping knob 2 and a vision module adjusting knob 3 which are connected with a driving assembly 8 and a screw rod sliding table 10 respectively.

It should be noted that the portable screw rod sliding table 10 further comprises a circuit module and a charging port, the battery 11 and the light source 12 are respectively electrically connected with the circuit module, and the screw rod sliding table 10 is the prior art and is not described in detail in this embodiment.

During operation, be connected visual identification module 9 and computer through serial ports data line earlier, hold casing 1 after that, place its surface at the sample that awaits measuring, adjust visual module adjust knob 3, make visual identification module 9 go up and down to suitable height, rotatory dropping liquid knob 2, make the liquid in the injector 7 flow out by dropping liquid needle 71, and form the liquid drop in the needle point department of dropping liquid needle 71, finally attach to the surface at the sample that awaits measuring, the contact angle of the liquid drop is shot to computer host computer software analysis visual identification module 9.

When liquid needs to be sucked into the sample injector 7, the liquid injector is placed on a corresponding tool, the liquid dropping needle 71 is connected with an external liquid storage container through a guide pipe, and the liquid dropping knob 2 is adjusted reversely, so that the liquid can be injected into the sample injector 7.

In the mode, when the device is used, the vision identification module 9 is connected with a computer only through a serial port data line, so that a measurement result can be analyzed through computer upper computer software, and the device is small in size, can be held by one hand, accords with the human engineering principle, and is convenient to carry; when a sample needs to be measured, the device is directly placed on the surface of the sample for measurement, is not limited by the size of the sample, does not need to cut the sample, is suitable for mobile measurement in special operation environments such as outdoor environment, assembly line production line environment and the like, and has the advantages of convenience in use and wide application range.

On the basis, visual identification module 9 is including fixing camera fixing base 91 on the 10 output ends of lead screw slip table, fixing visual camera 92 on camera fixing base 91 and the corner ware 93 with visual camera 92 light path intercommunication, visual camera 92 is perpendicular with the plane at the uncovered place of casing 1, contained angle between corner ware 93 and the visual camera 92 is greater than 90 degrees, still be provided with data serial ports 4 on the casing 1, through cable electric connection between data serial ports 4 and the visual camera 92.

Specifically, when the housing 1 contacts with a sample to be measured, the angle turning device 93 is greater than 90 degrees, so that the angle turning device 93 tilts towards the sample to be measured, and thus the droplet on the sample to be measured can be accurately shot, wherein the vision camera 92 further comprises a microscope lens, in this embodiment, a fixed magnification of 0.38X is selected, and during shooting, the droplet is distortion-free, and the structure is small and exquisite, which is beneficial to reducing the overall size of the droplet shooting device. The angle between the angle converter 93 and the vision camera 92 is 94 degrees 30', the height from the surface of the sample is 0.38mm, and when the whole machine is vertically arranged with the sample, the liquid drops on the surface of the sample can be horizontally observed. By arranging the data serial port 4 on the housing 1, the connection with the computer is at one side of the housing 1, which is beneficial to placing the vision camera 92 in the housing 1.

In the above manner, through the arrangement of the screw sliding table, the height of the visual recognition module 9 can be conveniently adjusted, and meanwhile, through the arrangement of the angle turning device 93, the shooting precision of liquid drops is favorably improved.

On the basis, the sample injector 7 comprises a syringe, a piston connected in the syringe in a sliding manner, and a piston rod fixedly connected with the piston.

Specifically, injector 7 is similar with the common syringe on the market, through pushing down the piston during the dropping liquid, can push out the liquid drop, and during the imbibition, outwards twitch the piston for form the negative pressure environment in the cylinder, thereby outside solution under atmospheric pressure effect, get into in the cylinder very easily.

The mode has the advantages of simple structure, low manufacturing cost and convenience and quickness in use.

On the basis, drive assembly 8 including rotate the screw rod 81 of connection on support 6 and with piston rod fixed connection's drive block 82, be provided with the thread groove on the drive block 82, the one end threaded connection that support 6 was kept away from to screw rod 81 is in the thread groove, dropping liquid knob 2 and screw rod 81 fixed connection.

During operation, the driving block 82 can be lifted and lowered by rotating the dropping knob 2 anticlockwise or clockwise.

In the above manner, the arrangement of the screw 81 and the driving block 82 converts the rotation torque of the screw 81 into a linear torque, so that the piston rod can be pushed in or pulled out more stably.

On the basis, the shell 1 is provided with a light source knob 5 for controlling the on-off or brightness adjustment of the light source 12, and the light source knob 5 is electrically connected with the battery 11 and the light source 12.

Specifically, the light source knob 5 is electrically connected to the circuit module, and the light source 12 can be controlled to be turned on or off and adjusted by the light source knob 5.

By the above manner, the optical compensation of different levels of brightness can be performed on the visual recognition module 9 under different environments, and the shooting recognition accuracy of the visual recognition module 9 is improved.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A hand-held contact angle measuring instrument, characterized in that: including open casing (1) in bottom, the inboard of casing (1) is fixed with support (6), one side of support (6) is fixed with application of sample ware (7), be provided with on application of sample ware (7) and drip needle (71), drip needle (71) are towards the uncovered department setting of casing (1), be provided with on support (6) and be used for promoting application of sample ware (7) dropping liquid or imbibition drive assembly (8), the opposite side of support (6) is fixed with lead screw slip table (10), be fixed with on the output of lead screw slip table (10) and be used for detecting visual identification module (9) of dropping the liquid drop in drip needle (71), the one side that is located visual identification module (9) is kept away from in casing (1) drip needle (71) is provided with light source (12), still be provided with battery (11) with light source (12) electric connection in casing (1), the shell (1) is provided with a liquid dropping knob (2) and a visual module adjusting knob (3) which are connected with a driving assembly (8) and a screw rod sliding table (10) respectively.

2. The hand-held contact angle measuring instrument of claim 1, wherein: visual identification module (9) including fixing camera fixing base (91) on lead screw slip table (10) output, fixing visual camera (92) on camera fixing base (91) and corner ware (93) with visual camera (92) light path intercommunication, visual camera (92) are perpendicular with the uncovered plane at place of casing (1), contained angle between corner ware (93) and visual camera (92) is greater than 90 degrees, still be provided with data serial ports (4) on casing (1), through cable electric connection between data serial ports (4) and the visual camera (92).

3. The hand-held contact angle measuring instrument of claim 1, wherein: the sample injector (7) comprises a needle cylinder, a piston connected in the needle cylinder in a sliding manner and a piston rod fixedly connected with the piston.

4. The hand-held contact angle measuring instrument of claim 3, wherein: drive assembly (8) including rotate screw rod (81) of connection on support (6) and with piston rod fixed connection's drive block (82), be provided with the thread groove on drive block (82), the one end threaded connection that support (6) were kept away from in the thread groove in screw rod (81), dropping liquid knob (2) and screw rod (81) fixed connection.

5. The hand-held contact angle measuring instrument of claim 1, wherein: the light source control device is characterized in that a light source knob (5) used for controlling the on-off or brightness adjustment of a light source (12) is arranged on the shell (1), and the light source knob (5) is electrically connected with the battery (11) and the light source (12).