Dropper holding unit for a contact angle measuring instrument
By designing an L-shaped carrier plate structure that can be rotated and stored, the problem of easy damage to the dropper clamping unit of the contact angle measuring instrument was solved, achieving both protection and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU CHUHE ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-02
AI Technical Summary
The dropper clamping unit of existing contact angle measuring instruments is directly fixed on the top of the instrument and protrudes, which is prone to collision and damage when not in use.
A dropper clamping unit was designed, comprising an L-shaped carrier plate, a dropper fixing ring, a liquid-pushing cylinder, and a fixing component. The carrier plate can be rotated and stored through a hinged seat and a sliding groove structure, which avoids collision damage when not in use and makes it easy to carry.
It effectively protects the dropper clamping mechanism from impact damage, improves the service life of the instrument, and makes it easy to carry.
Smart Images

Figure CN224308442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing instrument technology, specifically to a dropper clamping unit for a contact angle measuring instrument. Background Technology
[0002] The dropper clamping unit of the contact angle measuring instrument is an instrument used to measure the contact angle of a liquid with a solid, that is, the wettability and interfacial tension of the liquid with the solid. It plays a very important role in scientific research and production in industries such as petroleum, printing and dyeing, medicine, spraying, and mineral processing.
[0003] The dropper clamping unit used in contact angle measuring instruments typically has a set of electric droppers at the top for adding liquid. The piston rod is moved by a motor or hydraulic cylinder, causing the liquid in the dropper to drip downwards, which can effectively control the amount and speed of dripping. However, the dropper clamping unit of existing contact angle measuring instruments is generally directly fixed on the top of the instrument and protrudes, which makes it very easy for the instrument to collide and be damaged when it is not in use. Therefore, a dropper clamping unit for contact angle measuring instruments is provided to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a dropper clamping unit for a contact angle measuring instrument, which solves the problem that existing dropper clamping units for contact angle measuring instruments are directly fixed and protruded from the top of the instrument, making them prone to collisions and damage when the instrument is not in use.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a dropper clamping unit for a contact angle measuring instrument, comprising an installation unit and a dropper clamping mechanism disposed on the installation unit, wherein the dropper clamping mechanism comprises;
[0006] L-shaped carrier plate;
[0007] The dropper fixing ring is fixedly installed on the outer wall of the L-shaped carrier plate;
[0008] The liquid-pushing cylinder is fixedly mounted on the outer wall of the L-shaped carrier plate, and its output end is directly opposite the drip tube fixing ring.
[0009] A fastener is provided on the top inner side of the L-shaped carrier plate, and the fastener is fixedly installed with the mounting unit.
[0010] The mounting unit has a hinge seat that slides at the bottom. The L-shaped carrier plate is rotatably connected to the hinge seat. The L-shaped carrier plate rotates downward around the hinge seat and then slides inward to be stored under the mounting unit.
[0011] Preferably, the outer wall of the L-shaped carrier plate is provided with a second sliding groove, and a liquid pushing block is slidably disposed in the second sliding groove. The output end of the liquid pushing cylinder is fixedly connected to the liquid pushing block.
[0012] Preferably, a connecting part is fixedly provided on the back of the L-shaped carrier plate, and the connecting part is rotatably disposed in the hinge seat.
[0013] Preferably, the mounting unit includes;
[0014] Mounting rack;
[0015] Multiple mounting holes are linearly and equidistantly distributed on both sides of the top of the mounting bracket, used to adjust the front and rear mounting distance of the mounting bracket.
[0016] Preferably, the bottom of the mounting bracket is provided with a first sliding groove, and the upper surface of the hinge seat is fixedly provided with an anti-detachment slider, which is slidably connected in the first sliding groove.
[0017] Preferably, the fastener includes;
[0018] A fixed connecting plate is welded to the back of the L-shaped carrier plate;
[0019] The fixing bolts are rotatably mounted on the outer surface of the fixing connecting plate;
[0020] The pin is threaded to the outer surface of the fixing bolt, and its two ends can move through the fixing connecting plate.
[0021] Preferably, the mounting bracket has a fixing hole at its front end, and the bottom end of the pin is movably inserted into the fixing hole.
[0022] This utility model discloses a dropper clamping unit for a contact angle measuring instrument, which has the following beneficial effects: by rotating the fixing bolt counterclockwise, the pin moves upward along the fixing bolt. At this time, the top of the pin moves out from the fixing hole. Then, the entire L-shaped carrier plate rotates around the hinge seat, so that the L-shaped carrier plate is in a horizontal state. Then, it is pushed inward along the first sliding groove into the bottom of the mounting frame for storage, which avoids damage to the dropper clamping mechanism due to accidental contact when not in use, and is also convenient to carry. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0024] Figure 1This is a schematic diagram of the overall outer surface structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;
[0026] Figure 3 This is a schematic diagram of the overall folded storage structure of this utility model;
[0027] Figure 4 This is a schematic diagram of the outer surface structure of the mounting unit of this utility model;
[0028] Figure 5 This is a schematic diagram of the outer surface structure of the dropper clamping mechanism of this utility model.
[0029] In the diagram: 1. Installation unit; 11. Mounting bracket; 12. Hinge seat; 13. Mounting hole; 14. Fixing hole; 15. First slide groove; 16. Anti-detachment slider; 2. Dropper clamping mechanism; 21. L-shaped carrier plate; 22. Fixing component; 221. Fixing connecting plate; 222. Fixing bolt; 223. Pin; 23. Connecting part; 24. Dropper fixing ring; 25. Liquid pushing cylinder; 26. Liquid pushing top block; 27. Second slide groove. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] This application provides a dropper clamping unit for a contact angle measuring instrument, which solves the problem that existing dropper clamping units for contact angle measuring instruments are directly fixed on the top of the instrument and protrude, making it very easy for the instrument to collide and be damaged when it is not in use.
[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0033] This utility model discloses a dropper clamping unit for a contact angle measuring instrument.
[0034] According to the appendix Figure 1-5 As shown, it includes an installation unit 1 and a dropper clamping mechanism 2 disposed on the installation unit 1. The dropper clamping mechanism 2 includes:
[0035] L-shaped carrier plate 21;
[0036] The dropper fixing ring 24 is fixedly installed on the outer wall of the L-shaped carrier plate 21;
[0037] The liquid-pushing cylinder 25 is fixedly mounted on the outer wall of the L-shaped carrier plate 21, and its output end is directly opposite the drip tube fixing ring 24.
[0038] The fastener 22 is located on the top inner side of the L-shaped carrier plate 21 and is fixedly installed with the mounting unit 1.
[0039] The bottom of the mounting unit 1 is slidably provided with a hinge seat 12. The L-shaped carrier plate 21 is rotatably connected to the hinge seat 12. After the L-shaped carrier plate 21 rotates downward around the hinge seat 12, it slides inward to be stored under the mounting unit 1.
[0040] The outer wall of the L-shaped carrier plate 21 is provided with a second sliding groove 27, and a liquid pushing block 26 is slidably arranged in the second sliding groove 27. The output end of the liquid pushing cylinder 25 is fixedly connected to the liquid pushing block 26.
[0041] A connecting part 23 is fixedly provided on the back of the L-shaped carrier plate 21, and the connecting part 23 is rotatably disposed in the hinge seat 12.
[0042] Installation unit 1 includes;
[0043] Mounting bracket 11;
[0044] Multiple mounting holes 13 are linearly and equidistantly distributed on both sides of the top of the mounting bracket 11, used to adjust the front and rear mounting distance of the mounting bracket 11.
[0045] The bottom of the mounting bracket 11 is provided with a first sliding groove 15, and the upper surface of the hinge seat 12 is fixedly provided with an anti-detachment slider 16, which is slidably connected in the first sliding groove 15.
[0046] Fastener 22 includes;
[0047] A fixed connecting plate 221 is fixedly welded to the back of the L-shaped carrier plate 21;
[0048] The fixing bolt 222 is rotatably mounted on the outer surface of the fixing connecting plate 221;
[0049] The pin 223 is threaded to the outer surface of the fixing bolt 222, and its two ends move through the fixing connecting plate 221.
[0050] The mounting bracket 11 has a fixing hole 14 at its front end, and the bottom end of the pin 223 is movably inserted into the fixing hole 14.
[0051] Working principle: When the device is in use, the mounting frame 11 is fixedly mounted on the contact angle measuring instrument by bolts. At this time, the L-shaped carrier plate 21 is vertically mounted on the outer surface of the front end of the mounting frame 11. The L-shaped carrier plate 21 is fixedly connected to the mounting frame 11 by the fixing member 22. The dropper is inserted into the dropper fixing ring 24, and then the liquid pushing cylinder 25 is activated, so that the liquid pushing top block 26 slides down along the second sliding groove 27, pushing the piston rod of the dropper to move down, thereby dripping liquid.
[0052] After use, rotate the fixing bolt 222 counterclockwise to move the pin 223 upward along the fixing bolt 222. At this time, the top of the pin 223 moves out from the fixing hole 14. Then rotate the entire L-shaped carrier plate 21 around the hinge seat 12 to make the L-shaped carrier plate 21 horizontal. Then push it inward along the first slide groove 15 into the bottom of the mounting bracket 11 for storage, so as to avoid damage to the dropper clamping mechanism 2 due to accidental contact when not in use, and at the same time make it easy to carry.
[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A dropper clamping unit for a contact angle measuring instrument, characterized in that, It includes an installation unit (1) and a dropper clamping mechanism (2) disposed on the installation unit (1), the dropper clamping mechanism (2) comprising; L-shaped carrier plate (21); The dropper fixing ring (24) is fixedly installed on the outer wall of the L-shaped carrier plate (21); The liquid-pushing cylinder (25) is fixedly installed on the outer wall of the L-shaped carrier plate (21), and its output end is directly opposite the drip tube fixing ring (24). A fastener (22) is provided on the top inner side of the L-shaped carrier plate (21), and the fastener (22) is fixedly installed with the mounting unit (1); The mounting unit (1) has a hinge seat (12) slidably disposed at the bottom. The L-shaped carrier plate (21) is rotatably connected to the hinge seat (12). The L-shaped carrier plate (21) rotates downward around the hinge seat (12) and then slides inward to be stored under the mounting unit (1).
2. The dropper clamping unit for a contact angle measuring instrument according to claim 1, characterized in that: The outer wall of the L-shaped carrier plate (21) is provided with a second sliding groove (27), and a liquid pushing block (26) is slidably arranged in the second sliding groove (27). The output end of the liquid pushing cylinder (25) is fixedly connected to the liquid pushing block (26).
3. The dropper clamping unit for a contact angle measuring instrument according to claim 2, characterized in that: The back of the L-shaped carrier plate (21) is fixedly provided with a connecting part (23), which is rotatably disposed in the hinge seat (12).
4. The dropper clamping unit for a contact angle measuring instrument according to claim 1, characterized in that: The installation unit (1) includes; Mounting bracket (11); Multiple mounting holes (13) are linearly and equidistantly distributed on both sides of the top of the mounting bracket (11) to adjust the front and rear mounting distance of the mounting bracket (11).
5. The dropper clamping unit for a contact angle measuring instrument according to claim 4, characterized in that: The bottom of the mounting bracket (11) is provided with a first sliding groove (15), and the upper surface of the hinge seat (12) is fixedly provided with an anti-detachment slider (16), which is slidably connected in the first sliding groove (15).
6. The dropper clamping unit for a contact angle measuring instrument according to claim 4, characterized in that: The fastener (22) includes; A fixed connecting plate (221) is fixedly welded to the back of the L-shaped carrier plate (21); The fixing bolt (222) is rotatably mounted on the outer surface of the fixing connecting plate (221); The pin (223) is threaded to the outer surface of the fixing bolt (222), and its two ends move through the fixing connecting plate (221).
7. The dropper clamping unit for a contact angle measuring instrument according to claim 6, characterized in that: The mounting bracket (11) has a fixing hole (14) at its front end, and the bottom end of the pin (223) is movably inserted into the fixing hole (14).