Portable contact angle measuring instrument

Abstract

The utility model relates to the technical field of contact angle measuring instruments, and discloses a portable contact angle measuring instrument which comprises a shell, a bottom plate is mounted at the bottom of the interior of the shell, a sample groove is formed in the top of the bottom plate, and a sample injector and a visual identification system which correspond to the sample groove are further arranged at the top of the bottom plate; the adjusting mechanism is located between the sample groove and the bottom plate and used for adjusting the height between the sample groove and the bottom plate, and the adjusting mechanism comprises a thread mechanism and a limiting mechanism; through the arrangement of the adjusting mechanism, the sample groove can be adjusted up and down, the sample recognition efficiency of the visual recognition system is improved, the accuracy of a measurement result is improved, and therefore the application range of the visual recognition system is widened, and samples with different thicknesses can be measured; and meanwhile, the problem that the difficulty of calibration and maintenance under different measurement conditions can be increased for instruments needing regular calibration and maintenance in the existing device is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of contact angle measuring instruments, and particularly relates to a portable contact angle measuring instrument. Background Technique

[0002] A contact angle measuring instrument is an instrument used to measure the contact angle of a liquid on the surface of a solid. The contact angle refers to the angle between the liquid droplet and the liquid contact interface on the solid surface. It is an important parameter for evaluating the wettability of the solid surface. A contact angle measuring instrument generally includes a high-resolution camera system and an accurate liquid dispensing system. During operation, the instrument will drop a drop of liquid on the solid surface, capture the shape of the liquid droplet through the camera system, and calculate the contact angle through image processing.

[0003] A contact angle measuring instrument disclosed in Chinese Patent with the publication number CN218567152U. During measurement, the required environmental solution can be injected into the sample tank. Through the setting of the bracket, the sample can be suspended in the sample tank, which is beneficial for the environmental solution in the sample tank to fully contact the sample. After the sample is dropped by the sample injection tube, the dropped liquid droplet can fully contact the sample in the environmental solution, which is beneficial for improving the measurement accuracy. Through the setting of the flanging part, the installation of the bracket is more convenient and fast. The sample can be taken out only by removing the bracket, thus improving the taking and placing efficiency of the sample. However, the existing device is difficult to adjust the sample tank up and down during use, which affects the recognition efficiency of the visual recognition system for the sample, reduces the accuracy of the measurement result, thus limiting the applicable range of the visual recognition system and unable to measure samples with different thicknesses. At the same time, for some instruments that need to be calibrated and maintained regularly, it will increase the difficulty of calibration and maintenance under different measurement conditions. Content of the Utility Model

[0004] The purpose of the utility model is to provide a portable contact angle measuring instrument, which solves the problem in the background technique that it is difficult to adjust the sample tank up and down, affecting the recognition efficiency of the visual recognition system for the sample.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A portable contact angle measuring instrument, comprising:

[0007] A housing, a bottom plate is installed at the bottom inside the housing, a sample tank is installed on the top of the bottom plate, and a sample injector and a visual recognition system corresponding to the sample tank are also arranged on the top of the bottom plate;

[0008] Adjusting mechanism, the adjusting mechanism is located between the sample tank and the bottom plate and is used to adjust the height between the sample tank and the bottom plate. The adjusting mechanism includes a threaded mechanism and a limiting mechanism. The threaded mechanism is located between the sample tank and the bottom plate and is used to drive the sample tank to move. The limiting mechanism is located between the sample tank and the threaded mechanism and is used to limit the threaded mechanism.

[0009] Preferably, the threaded mechanism includes a support seat fixed to the top of the bottom plate. A support post is fixed to the top of the support seat. A cavity is provided on one side of the support post. A threaded rod is installed inside the cavity. A moving plate is screwed onto the outer wall of the threaded rod. The moving plate is fixed to the sample tank. A receiving plate is installed inside the sample tank.

[0010] Preferably, the limiting mechanism includes an extension seat fixed to one side of the support post. The threaded rod extends to the top of the support post and is fixed with a rotating disc. A limiting groove is provided on the outer wall of the rotating disc. A limiting plate corresponding to the limiting groove is provided on the top of the extension seat. A reset mechanism for resetting the limiting plate is provided between the limiting plate and the extension seat.

[0011] Preferably, the reset mechanism is a linkage rod fixed to the bottom of the limiting plate. A moving block is fixed to the bottom of the linkage rod. A moving groove for the moving block to move is provided on the top of the extension seat. A second spring is connected between the moving block and the moving groove.

[0012] Preferably, a maintenance mechanism for maintaining the internal components of the housing is provided on one side of the housing. The maintenance mechanism includes a door frame fixed to one side of the housing. A maintenance door is movably installed inside the door frame. A control board is fixed to one side of the maintenance door. A support board is fixed to one side of the door frame. A plurality of evenly distributed rollers are installed inside the support board. The tops of the plurality of rollers cooperate with the door frame. A positioning mechanism for positioning the door frame is provided between the door frame and the housing.

[0013] Preferably, an installation sleeve is fixed to the outer wall of the visual recognition system. First mounting plates are installed on both sides of the bottom of the installation sleeve. A support sleeve is fixed to the top of the bottom plate. Second mounting plates corresponding to the first mounting plates are installed on both sides of the top of the support sleeve. A screw rod is screwed between the first mounting plate and the second mounting plate. Reinforcing rods are fixed to both sides of the support sleeve. Reinforcing seats cooperating with the visual recognition system are fixed to the tops of the reinforcing rods.

[0014] Preferably, the positioning mechanism includes a frame fixed to the top of the fixed housing and a limiting rod inserted into the interior of the housing. A baffle is fixed to the top of the limiting rod, and a movable rod is fixed to the top of the baffle. The movable rod extends to the top of the frame and is fixed with a control sleeve. A first spring is connected between the baffle and the frame, and the first spring is sleeved on the outer wall of the movable rod. A limiting hole for inserting the limiting rod is opened at the top of the inspection door.

[0015] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0016] 1. Through the setting of the adjustment mechanism, the present utility model can realize the up-and-down adjustment of the sample cell, improve the recognition efficiency of the sample by the visual recognition system, increase the accuracy of the measurement results, thereby expanding the applicable range of the visual recognition system, and can measure samples of different thicknesses. At the same time, it solves the problem that for some instruments that need to be calibrated and maintained regularly in the existing device, it will increase the difficulty of calibration and maintenance under different measurement conditions.

[0017] 2. Through the setting of the maintenance mechanism, the present utility model can realize the maintenance of the components inside the housing, facilitating technicians to maintain and replace damaged or faulty components, thereby reducing the maintenance cost and downtime. At the same time, when the instrument has problems, the staff who can perform maintenance on the inside of the housing can easily check the status of each component, and then accurately find the cause of the fault and quickly repair it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0019] Figure 2 is a cross-sectional view of the whole of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the adjustment mechanism of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the maintenance mechanism of the present utility model when disassembled.

[0022] Among them: 1. Housing; 2. Maintenance mechanism; 3. Adjustment mechanism; 4. Sampler; 5. Visual recognition system; 6. Base plate;

[0023] 21. Door frame; 22. Frame; 23. First spring; 24. Limiting rod; 25. Inspection door; 26. Roller; 27. Support plate;

[0024] 31. Threaded rod; 32. Second spring; 33. Rotary disk; 34. Sample cell; 35. Support seat; 36. Screw; 37. Reinforcement seat; 38. Reinforcement rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1 and Figure 2 , a portable contact angle measuring instrument, comprising: a housing 1, a bottom plate 6 is installed at the bottom inside the housing 1, a sample cell 34 is installed on the top of the bottom plate 6, and a sampler 4 and a vision recognition system 5 corresponding to the sample cell 34 are also provided on the top of the bottom plate 6.

[0027] Through the setting of the housing 1, the internal components can be effectively collected, facilitating the user to transport it, and making the present utility model more portable.

[0028] Please refer to Figure 2 and Figure 3 , an adjusting mechanism 3, the adjusting mechanism 3 is located between the sample cell 34 and the bottom plate 6 and is used to adjust the height between the sample cell 34 and the bottom plate 6. The adjusting mechanism 3 includes a threaded mechanism and a limiting mechanism. The threaded mechanism is located between the sample cell 34 and the bottom plate 6 and is used to drive the sample cell 34 to move. The limiting mechanism is located between the sample cell 34 and the threaded mechanism and is used to limit the threaded mechanism. The threaded mechanism includes a support base 35 fixed on the top of the bottom plate 6. A support post is fixed on the top of the support base 35. A cavity is provided on one side of the support post. A threaded rod 31 is installed inside the cavity. A moving plate is screwed on the outer wall of the threaded rod 31. The moving plate is fixed to the sample cell 34. A receiving plate is installed inside the sample cell 34. The limiting mechanism includes an extension seat fixed on one side of the support post. The threaded rod 31 extends to the top of the support post and is fixed with a rotating disk 33. A limiting groove is provided on the outer wall of the rotating disk 33. A limiting plate corresponding to the limiting groove is provided on the top of the extension seat. A reset mechanism for resetting the limiting plate is provided between the limiting plate and the extension seat. A linkage rod fixed to the bottom of the limiting plate. A moving block is fixed to the bottom of the linkage rod. A moving groove for the moving block to move is provided on the top of the extension seat. A second spring 32 is connected between the moving block and the moving groove. An installation sleeve is fixed to the outer wall of the vision recognition system 5. First mounting plates are installed on both sides of the bottom of the installation sleeve. A support sleeve is fixed on the top of the bottom plate 6. Second mounting plates corresponding to the first mounting plates are installed on both sides of the top of the support sleeve. A screw 36 is screwed between the first mounting plate and the second mounting plate. Reinforcing rods 38 are fixed on both sides of the support sleeve. Reinforcing seats 37 cooperating with the vision recognition system 5 are fixed on the tops of the reinforcing rods 38.

[0029] First, pull the linkage rod to drive the moving block to move. The movement of the moving block drives the second spring 32 to contract. Due to the contraction of the second spring 32, the linkage rod drives the limit plate to move. Through the movement of the limit plate, it is separated from the limit groove. After the mutual separation of the limit plate and the limit groove, rotate the rotary disk 33 to drive the threaded rod 31 to rotate. The rotation of the threaded rod 31 drives the moving plate to move on its outer wall. The movement of the moving plate drives the sample tank 34 to move. The movement of the sample tank 34 drives the sample to move, so that it can be at the same level as the vision recognition system 5.

[0030] Through the support of the reinforcing rod 38 for the reinforcing seat 37, the reinforcing seat 37 can support the vision recognition system 5. Through the support of the vision recognition system 5, it is more stable during operation. Separate the first mounting plate and the second mounting plate through the screw 36, so that the vision recognition system 5 can be effectively disassembled, facilitating the user to maintain and repair it.

[0031] In addition, please refer to Figure 1 and Figure 4 On one side of the housing 1, there is a maintenance mechanism 2 for maintaining the internal components of the housing 1. The maintenance mechanism 2 includes a door frame 21 fixed on one side of the housing 1. An inspection door 25 is movably installed inside the door frame 21. A control board is fixed on one side of the inspection door 25. A support plate 27 is fixed on one side of the door frame 21. A plurality of evenly distributed rollers 26 are installed inside the support plate 27. The tops of the plurality of rollers 26 cooperate with the door frame 21. A positioning mechanism for positioning the door frame 21 is provided between the door frame 21 and the housing 1. The positioning mechanism includes a frame body 22 fixed on the top of the housing 1 and a limit rod 24 inserted into the housing 1. A baffle is fixed on the top of the limit rod 24. A movable rod is fixed on the top of the baffle. The movable rod extends to the top of the frame body 22 and is fixed with a control sleeve. A first spring 23 is connected between the baffle and the frame body 22. The first spring 23 is sleeved on the outer wall of the movable rod. A limit hole for inserting the limit rod 24 is opened at the top of the inspection door 25.

[0032] First, pull the control sleeve to drive the movable rod to move. The movement of the movable rod drives the baffle to move. The movement of the baffle drives the first spring 23 to contract. Due to the contraction of the first spring 23, the baffle drives the limit rod 24 to move. Through the movement of the limit rod 24, the inspection door 25 is separated. After the mutual separation of the limit rod 24 and the inspection door 25, pull the control board to drive the inspection door 25 to move. Due to the arrangement of the plurality of rollers 26, the inspection door 25 moves more smoothly.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A portable contact angle measuring instrument, characterized in that, Including: A housing (1), a bottom plate (6) is installed at the bottom inside the housing (1), a sample tank (34) is installed on the top of the bottom plate (6), and a sampler (4) and a visual recognition system (5) corresponding to the sample tank (34) are also arranged on the top of the bottom plate (6); An adjusting mechanism (3), the adjusting mechanism (3) is located between the sample tank (34) and the bottom plate (6) and is used to adjust the height between the sample tank (34) and the bottom plate (6). The adjusting mechanism (3) includes a threaded mechanism and a limiting mechanism. The threaded mechanism is located between the sample tank (34) and the bottom plate (6) and is used to drive the sample tank (34) to move. The limiting mechanism is located between the sample tank (34) and the threaded mechanism and is used to limit the threaded mechanism.

2. The portable contact angle measuring instrument according to claim 1, wherein: The threaded mechanism includes a support seat (35) fixed on the top of the bottom plate (6). A support pile is fixed on the top of the support seat (35). A cavity is opened on one side of the support pile. A threaded rod (31) is installed inside the cavity. A moving plate is screwed on the outer wall of the threaded rod (31). The moving plate is fixed to the sample tank (34). A receiving plate is installed inside the sample tank (34).

3. The portable contact angle measuring instrument according to claim 2, characterized in that: The limiting mechanism includes an extension seat fixed on one side of the support pile. The threaded rod (31) extends to the top of the support pile and is fixed with a rotating disc (33). A limiting groove is opened on the outer wall of the rotating disc (33). A limiting plate corresponding to the limiting groove is arranged on the top of the extension seat. A reset mechanism for resetting the limiting plate is arranged between the limiting plate and the extension seat.

4. The portable contact angle measuring instrument according to claim 3, characterized in that: The reset mechanism is a linkage rod fixed to the bottom of the limiting plate. A moving block is fixed to the bottom of the linkage rod. A moving groove for the moving block to move is opened on the top of the extension seat. A second spring (32) is connected between the moving block and the moving groove.

5. The portable contact angle measuring instrument according to claim 1, wherein: An overhaul mechanism (2) for overhauling the internal components of the housing (1) is arranged on one side of the housing (1). The overhaul mechanism (2) includes a door frame (21) fixed on one side of the housing (1). An overhaul door (25) is movably installed inside the door frame (21). A control panel is fixed to one side of the overhaul door (25). A support plate (27) is fixed to one side of the door frame (21). A plurality of uniformly distributed rollers (26) are installed inside the support plate (27). The tops of the plurality of rollers (26) cooperate with the door frame (21). A positioning mechanism for positioning the door frame (21) is arranged between the door frame (21) and the housing (1).

6. The portable contact angle measuring instrument according to claim 1, characterized in that: An installation sleeve is fixed to the outer wall of the visual recognition system (5). First mounting plates are installed on both sides of the bottom of the installation sleeve. A support sleeve is fixed to the top of the bottom plate (6). Second mounting plates corresponding to the first mounting plates are installed on both sides of the top of the support sleeve. A screw rod (36) is screwed between the first mounting plate and the second mounting plate. Reinforcing rods (38) are fixed to both sides of the support sleeve. Reinforcing seats (37) cooperating with the visual recognition system (5) are fixed to the tops of the reinforcing rods (38).

7. The portable contact angle measuring instrument according to claim 5, characterized in that: The positioning mechanism includes a frame body (22) fixed to the top of a fixed housing (1) and a limiting rod (24) inserted inside the housing (1). A baffle is fixed to the top of the limiting rod (24), and a movable rod is fixed to the top of the baffle. The movable rod extends to the top of the frame body (22) and is fixed with a control sleeve. A first spring (23) is connected between the baffle and the frame body (22), and the first spring (23) is sleeved on the outer wall of the movable rod. A limiting hole for inserting the limiting rod (24) is formed in the top of the inspection door (25).

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