Liquid filling valve

Abstract

The utility model provides a liquid filling valve which comprises a valve body, a valve element and an air cylinder, the air cylinder is arranged on the valve body, a fluid channel is arranged in the valve body, a liquid inlet communicated with the fluid channel is formed in the side face of the valve body, a liquid outlet communicated with the fluid channel is formed in the bottom of the valve body, the valve element is arranged on the fluid channel, and a discharging head is arranged at the bottom of the valve element. The air cylinder is connected with the valve element and can drive the valve element to move up and down so as to drive the discharging head to open or close the liquid outlet, a gas channel is formed in the valve element, the discharging head is provided with an air suction port communicated with the gas channel, the valve element is provided with a first exhaust port communicated with the gas channel, and the side face of the valve body is provided with a second exhaust port communicated with the first exhaust port. And the second exhaust port is connected with an external air pump. According to the liquid filling valve, materials can be prevented from being attached to the liquid outlet, the situation that the flow of fluid filled next time is affected is avoided, and therefore the precision of fluid filling can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid filling, in particular to a liquid filling valve. Background Art

[0002] In the field of fluid filling, fluids are typically filled into containers through a pump nozzle connected to an injection pump. This type of pump nozzle typically requires a valve to control the flow of the fluid. Pump nozzles with internal valves, also known as filling valves, are widely used in industries such as pharmaceuticals, medical treatments, chemicals, scientific research, and electronics, where precise control of the amount of fluid being filled is required. During the actual filling process, when the valve is closed, a small amount of material may adhere to the liquid outlet, resulting in unstable fluid flow and affecting the accuracy of the fluid filling. Utility Model Content

[0003] The purpose of the utility model is to provide a liquid filling valve, aiming to solve the problem that the liquid outlet of the existing filling valve is prone to adhesion of materials.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A liquid filling valve is provided, comprising a valve body, a valve core and a cylinder, the cylinder being arranged on the valve body, a fluid channel being provided inside the valve body, a liquid inlet being provided on the side of the valve body and being connected to the fluid channel, a liquid outlet being provided on the bottom of the valve body and being connected to the fluid channel, the valve core being arranged on the fluid channel, a discharge head being provided on the bottom of the valve core, the cylinder being connected to the valve core and being able to drive the valve core to move up and down to drive the discharge head to open or close the liquid outlet, a gas channel being provided inside the valve core, the discharge head being provided with an air intake being connected to the gas channel, the valve core being provided with a first exhaust port being connected to the gas channel, a second exhaust port being provided on the side of the valve body and being connected to the first exhaust port, and the second exhaust port being connected to an external air pump.

[0006] Optionally, the liquid outlet is provided with a chamfered structure, and the discharge head is provided with a chamfered structure adapted to the liquid outlet.

[0007] Optionally, the air inlet is shaped like a truncated cone.

[0008] Optionally, the discharge head is threadedly connected to the valve core.

[0009] Optionally, a gas pipeline is provided on the side of the valve body, one end of the gas pipeline is connected to an external air pump, and the other end of the gas pipeline is connected to the gas channel through the second exhaust port and the first exhaust port.

[0010] Optionally, a fluid conduit is provided on the side of the valve body, and the fluid conduit communicates with the fluid channel.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the liquid filling valve provided by the present invention, the material can flow into the fluid channel from the liquid inlet, and then leave from the liquid outlet and enter the filling container. After the rated amount is filled, the cylinder will drive the valve core to move downward and close the liquid outlet to prevent the material from continuing to flow out. Since there is a certain time difference in this process, sometimes a very small amount of material will adhere to the liquid outlet. At the moment the valve core closes the liquid outlet, the external air pump works to inhale air, and the material attached to the liquid outlet will enter the gas channel through the air intake port, and will be collected by the external container after passing through the first exhaust port and the second exhaust port. In this way, the material can be prevented from adhering to the liquid outlet, thereby avoiding affecting the fluid flow rate of the next filling, thereby improving the accuracy of fluid filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 This is a schematic structural diagram of the liquid filling valve of the present utility model;

[0015] Figure 2 It is a side view of the liquid filling valve of the present utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the liquid filling valve of the present invention during filling;

[0017] Figure 4 for Figure 3 A magnified schematic diagram of point A in the middle;

[0018] Figure 5 This is a schematic diagram of the internal structure of the liquid filling valve of the present invention when filling is completed;

[0019] Figure 6 for Figure 5 Enlarged schematic diagram of point B in the middle.

[0020] In the figure: 1. Valve body; 2. Valve core; 3. Cylinder; 4. Fluid channel; 5. Liquid inlet; 6. Liquid outlet; 7. Discharge head; 8. Gas channel; 9. Air intake; 10. First exhaust port; 11. Second exhaust port; 12. Gas pipeline; 13. Fluid pipeline. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0024] The following combination Figures 1 to 6 The present invention describes a liquid filling valve.

[0025] like Figures 1 to 6 As shown, the utility model provides a liquid filling valve, including a valve body 1, a valve core 2 and a cylinder 3, the cylinder 3 is arranged on the valve body 1, a fluid channel 4 is provided inside the valve body 1, a liquid inlet 5 connected to the fluid channel 4 is provided on the side of the valve body 1, a liquid outlet 6 connected to the fluid channel 4 is provided at the bottom of the valve body 1, the valve core 2 is provided in the fluid channel 4, a discharge head 7 is provided at the bottom of the valve core 2, the cylinder 3 is connected to the valve core 2 and can drive the valve core 2 to move up and down to drive the discharge head 7 to open or close the liquid outlet 6, a gas channel 8 is provided inside the valve core 2, the discharge head 7 is provided with an air intake port 9 connected to the gas channel 8, the valve core 2 is provided with a first exhaust port 10 connected to the gas channel 8, and a second exhaust port 11 connected to the first exhaust port 10 is provided on the side of the valve body 1, and the second exhaust port 11 is connected to an external air pump.

[0026] In the liquid filling valve provided in this embodiment, the material can flow into the fluid channel 4 from the liquid inlet 5, and then leave from the liquid outlet 6 and enter the filling container. After the rated amount is filled, the cylinder 3 will drive the valve core 2 to move downward and close the liquid outlet 6 to prevent the material from continuing to flow out. Since there is a certain time difference in this process, sometimes a very small amount of material will adhere to the liquid outlet 6. At the moment when the valve core 2 closes the liquid outlet 6, the external air pump works to inhale air, and the material attached to the liquid outlet 6 will enter the gas channel 8 through the air intake port 9, and pass through the first exhaust port 10 and the second exhaust port 11 and then be collected by the external container. In this way, the material can be prevented from adhering to the liquid outlet 6, thereby avoiding affecting the fluid flow rate of the next filling, thereby improving the accuracy of fluid filling.

[0027] In some embodiments, the liquid outlet 6 is provided with a chamfered structure, and the discharge head 7 is provided with a chamfered structure adapted to the liquid outlet 6 , which can better seal the liquid outlet 6 and reduce the adhesion of materials.

[0028] In some embodiments, the air inlet 9 is truncated into a cone shape. It is understandable that the inner diameter of the air inlet 9 is larger than the inner diameter of the gas channel 8 , so that the material attached to the liquid outlet 6 can be better sucked away.

[0029] In some embodiments, the discharge head 7 is threadedly connected to the valve core 2 for easy replacement.

[0030] In some embodiments, a gas pipe 12 is provided on the side of the valve body 1, one end of the gas pipe 12 is connected to an external air pump, and the other end of the gas pipe 12 is connected to the gas channel 8 through the second exhaust port 11 and the first exhaust port 10, which can be more conveniently connected to the external air pump.

[0031] In some embodiments, a fluid conduit 13 is provided on the side of the valve body 1 , and the fluid conduit 13 communicates with the fluid channel 4 , so that it can be more conveniently connected to a container for storing materials.

[0032] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A liquid filling valve, characterized in that: The invention comprises a valve body (1), a valve core (2) and a cylinder (3), wherein the cylinder (3) is arranged on the valve body (1), a fluid channel (4) is provided inside the valve body (1), a liquid inlet (5) communicating with the fluid channel (4) is provided on the side of the valve body (1), a liquid outlet (6) communicating with the fluid channel (4) is provided at the bottom of the valve body (1), the valve core (2) is arranged on the fluid channel (4), a discharge head (7) is provided at the bottom of the valve core (2), the cylinder (3) is connected to the valve core (2) and The valve core (2) can be driven to move up and down to drive the discharge head (7) to open or close the liquid outlet (6); a gas channel (8) is provided inside the valve core (2); the discharge head (7) is provided with an air intake port (9) connected to the gas channel (8); the valve core (2) is provided with a first exhaust port (10) connected to the gas channel (8); a second exhaust port (11) connected to the first exhaust port (10) is provided on the side of the valve body (1); and the second exhaust port (11) is connected to an external air pump.

2. The liquid filling valve according to claim 1, characterized in that: The liquid outlet (6) is provided with a chamfered structure, and the discharge head (7) is provided with a chamfered structure adapted to the liquid outlet (6).

3. The liquid filling valve according to claim 1, characterized in that: The air inlet (9) is in the shape of a truncated cone.

4. The liquid filling valve according to claim 1, characterized in that: The discharge head (7) is threadedly connected to the valve core (2).

5. The liquid filling valve according to claim 1, characterized in that: A gas pipeline (12) is provided on the side of the valve body (1), one end of the gas pipeline (12) is connected to an external air pump, and the other end of the gas pipeline (12) is connected to the gas channel (8) through the second exhaust port (11) and the first exhaust port (10).

6. The liquid filling valve according to claim 1, characterized in that: A fluid conduit (13) is provided on the side of the valve body (1), and the fluid conduit (13) is in communication with the fluid channel (4).

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