Chemical liquid filling anti-dripping device
By combining an electric telescopic rod and a sealing plug, the problem of residual liquid leakage after the valve body is closed in chemical liquid filling equipment is solved, achieving sealing of the filling head and ease of replacement, thus improving the safety and practicality of chemical liquid filling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 董艳静
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-28
AI Technical Summary
Existing chemical liquid filling equipment is prone to leakage of residual liquid in the filling head after the valve body is closed, making it impractical.
It adopts a combination structure of electric telescopic rod, output rod, connecting rod and sealing plug. The electric telescopic rod controls the sealing plug to push out the residual liquid and seal the filling port at the end of filling. Combined with the design of sealing gasket and sealing ring, the sealing of the filling head is ensured.
It effectively prevents chemical liquid leakage, and the sealing plug is easy to replace, thus improving the practicality and safety of the equipment.
Smart Images

Figure CN224562908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical filling, and in particular to a drip-proof device for filling chemical liquids. Background Technology
[0002] Chemical liquid filling is a crucial step in chemical production, involving the accurate, safe, and efficient filling of liquid chemicals into containers. However, liquid dripping often occurs during the filling process, necessitating the use of structural devices to prevent this from happening.
[0003] Some existing traditional chemical liquid filling equipment mainly relies on valves installed on the filling pipe for filling operation control. This results in some liquid remaining in the filling head when the valve is closed after filling stops, which poses a risk of leakage and is not practical. Therefore, a chemical liquid filling anti-drip device is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a chemical liquid filling anti-drip device, which aims to improve the problem in the prior art that after the valve body of the filling pipe is closed, a certain amount of liquid will remain in the filling head, posing a risk of dripping.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a chemical liquid filling anti-drip device, comprising a filling pipe, a connecting pipe fixedly connected to the right side of the filling pipe, an anti-drip component provided in the middle of the connecting pipe, and a filling head threadedly connected to the lower part of the connecting pipe; the anti-drip component includes an electric telescopic rod, the electric telescopic rod being fixedly connected to the connecting pipe, an output rod provided at the output end of the electric telescopic rod, a connecting rod provided at the lower part of the output rod, and a sealing plug fixedly connected to the lower end of the connecting rod.
[0006] As a further description of the above technical solution:
[0007] The bottom end of the output rod is fixedly connected to an installation sleeve.
[0008] As a further description of the above technical solution:
[0009] A screw is fixedly connected to the top end of the connecting rod, and the screw is threadedly connected to the mounting sleeve.
[0010] As a further description of the above technical solution:
[0011] A sealing ring is fixedly connected to the upper part of the connecting pipe, and the output rod is movably connected to the inner wall of the sealing ring.
[0012] As a further description of the above technical solution:
[0013] The filling head has a filling port at its lower part, and the sealing plug is movably connected to the filling port.
[0014] As a further description of the above technical solution:
[0015] A sealing gasket is installed between the filling head and the connecting tube.
[0016] This utility model has the following beneficial effects:
[0017] 1. In this utility model, by setting up the cooperation between components such as the electric telescopic rod, output rod, connecting rod, sealing plug and filling port, the sealing plug can push out the residual liquid in the filling port when the device stops filling, and completely seal the filling port of the filling head, thereby avoiding the leakage of chemical liquid, making it more practical.
[0018] 2. In this utility model, the mutual cooperation between the filling head and connecting pipe, as well as the output rod, the mounting sleeve and the connecting rod, makes the replacement of the sealing plug more convenient and quick, effectively improving the practicality of the device. Attached Figure Description
[0019] Figure 1 This is a three-dimensional schematic diagram of an anti-drip device for filling chemical liquids according to the present invention.
[0020] Figure 2 This is a three-dimensional cross-sectional view of the filling port of the anti-drip device for filling chemical liquids proposed in this utility model when it is closed.
[0021] Figure 3 This is a three-dimensional cross-sectional view of the filling port of the anti-drip device for chemical liquid filling proposed in this utility model when it is open;
[0022] Figure 4 This is a three-dimensional diagram showing the disassembled mounting sleeve and connecting rod of a chemical liquid filling anti-drip device proposed in this utility model.
[0023] Legend:
[0024] 1. Filling tube; 2. Connecting tube; 3. Anti-drip assembly; 4. Filling head; 5. Sealing gasket; 31. Electric telescopic rod; 32. Output rod; 33. Mounting sleeve; 34. Connecting rod; 35. Sealing plug; 34. Screw; 21. Sealing ring; 41. Filling port. Detailed Implementation
[0025] 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.
[0026] Reference Figure 1 This utility model provides an embodiment of a chemical liquid filling anti-drip device, including a filling pipe 1, which is used to cooperate with the transportation of chemical liquid for filling. It is equipped with a valve to control the flow of liquid. A connecting pipe 2 is fixedly connected to the right side of the filling pipe 1, which is used to connect various components and is connected to the filling pipe 1. An anti-drip component 3 is provided in the middle of the connecting pipe 2 to prevent liquid from dripping during filling. A filling head 4 is threadedly connected to the lower part of the connecting pipe 2 for filling chemical liquid. A sealing gasket 5, which may be made of rubber, is installed between the filling head 4 and the connecting pipe 2.
[0027] like Figures 2-3 As shown, a sealing ring 21 is fixedly connected to the upper part of the connecting pipe 2, which is used to seal when the output rod 32 moves. The output rod 32 is movably connected to the inner wall of the sealing ring 21. A filling port 41 is opened at the lower part of the filling head 4, which is used to fill chemical liquids. The sealing plug 35 is movably connected to the filling port 41, and the shape of the sealing plug 35 is adapted to the filling port 41.
[0028] Furthermore, the anti-drip assembly 3 includes an electric telescopic rod 31, which is used to control the movement of the sealing plug 35. The electric telescopic rod 31 is fixedly connected to the connecting pipe 2. The output end of the electric telescopic rod 31 is provided with an output rod 32, which is used to connect various components. The lower part of the output rod 32 is provided with a connecting rod 34, which is connected to the sealing plug 35. The lower end of the connecting rod 34 is fixedly connected with the sealing plug 35, which may be made of rubber. It is used to seal the filling port 41 and to clean up the liquid remaining in the filling port 41 in time to prevent liquid leakage. The bottom end of the output rod 32 is fixedly connected with an installation sleeve 33, which is used to cooperate with the installation of the connecting rod 34. The top end of the connecting rod 34 is fixedly connected with a screw 341, which is threadedly connected to the installation sleeve 33. It is used to facilitate the quick disassembly and assembly of the connecting rod 34, thereby assisting in the quick replacement of the sealing plug 35.
[0029] Working principle: During use, the chemical liquid to be filled is transported through the filling pipe 1 to the connecting pipe 2 and then filled into a specific container through the filling head 4. After filling is completed, the valve on the filling pipe 1 will close to stop the liquid flow. At the same time, the electric telescopic rod 31 will be opened, and the electric telescopic rod 31 will control the output rod 32 to move downward. This will cause the output rod 32 to move downward through the mounting sleeve 33 and drive the connecting rod 34 connected to it to move downward together. This will cause the sealing plug 35 to push out and clean the liquid remaining in the filling port 41 and seal the filling port 41, thereby preventing the liquid remaining in the filling head 4 from dripping. When the next filling begins, simply control the sealing plug 35 to move upward by the electric telescopic rod 31 to open the filling port 41 and open the valve on the filling pipe 1 to carry out the next filling.
[0030] If the sealing plug 35 is damaged during use and needs to be replaced, twist the filling head 4 to disengage it from the connecting tube 2, then rotate the connecting rod 34 to disengage the sealing plug 35 from the mounting sleeve 33. Tighten the screw 341 on the new connecting rod 34 to the mounting sleeve 33 to fix the new sealing plug 35 in place, and then tighten the filling head 4 to the connecting tube 2.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drip-proof device for filling chemical liquids, comprising a filling pipe (1), characterized in that: The right side of the filling tube (1) is fixedly connected to a connecting tube (2), the middle part of the connecting tube (2) is provided with an anti-drip component (3), and the lower part of the connecting tube (2) is threadedly connected to a filling head (4). The anti-drip assembly (3) includes an electric telescopic rod (31), which is fixedly connected to the connecting pipe (2). The output end of the electric telescopic rod (31) is provided with an output rod (32), and the lower part of the output rod (32) is provided with a connecting rod (34). The lower end of the connecting rod (34) is fixedly connected with a sealing plug (35).
2. The anti-drip device for chemical liquid filling according to claim 1, characterized in that: The bottom end of the output rod (32) is fixedly connected to the mounting sleeve (33).
3. The anti-drip device for chemical liquid filling according to claim 2, characterized in that: The top end of the connecting rod (34) is fixedly connected to a screw (341), and the screw (341) is threadedly connected to the mounting sleeve (33).
4. The anti-drip device for chemical liquid filling according to claim 1, characterized in that: A sealing ring (21) is fixedly connected to the upper part of the connecting pipe (2), and the output rod (32) is movably connected to the inner wall of the sealing ring (21).
5. The anti-drip device for chemical liquid filling according to claim 1, characterized in that: The filling head (4) has a filling port (41) at its lower part, and the sealing plug (35) is movably connected to the filling port (41).
6. The anti-drip device for chemical liquid filling according to claim 1, characterized in that: A sealing gasket (5) is installed between the filling head (4) and the connecting pipe (2).