Liquid pressing device of pressing type liquid taking bottle

Abstract

A liquid pressing device of a pressing type liquid taking bottle is characterized in that the upper portion of the liquid pressing device is a horizontal arc-shaped concave liquid taking table, a liquid taking pipe is arranged in the middle of the liquid taking table, a lower closed ring is arranged at the tail end of the liquid taking pipe, a liquid inlet hole is formed in the middle of the lower closed ring, a valve bead slightly larger than the liquid inlet hole is arranged above the liquid inlet hole, and a pressing column with the diameter slightly smaller than a cavity of the liquid taking pipe is arranged in the liquid taking pipe. The top end of the pressing column is a shrunk pressing head, an upper sealing ring is arranged at the top end of the liquid taking pipe, a hole is formed in the middle of the upper sealing ring, the pressing head penetrates out of the hole of the upper sealing ring, and a spring is arranged between the lower portion of the pressing column and the lower sealing ring. The product provided by the utility model is reasonable and simple in structure, small in pressing force and smooth, can effectively avoid waste caused by splashing and overflowing of liquid of an old product, and reduces the pollution phenomenon.

Description

Technical Field

[0001] This utility model relates to a liquid pressing device, and more particularly to a liquid pressing device applied to a press-type liquid dispensing bottle. Background Technology

[0002] Press-type dispensing bottles are generally used to dispense medical alcohol or rosin alcohol, hence they are also called press-type alcohol bottles or simply alcohol bottles. The liquids they contain are lightweight, volatile, and their effectiveness is reduced after contamination. They are commonly used in laboratories, medical and health care, and electrical appliance industries.

[0003] Currently, the common design of the bottle head for press-type liquid dispensing bottles, as shown in Utility Model Patent No. CN2679068Y, and the improved technical design, as shown in Utility Model Patent No. CN2120486333U, all involve pressing the dispensing platform component of the bottle head to move it downwards, thereby pressing the internal pump to expel the liquid.

[0004] Because the dispensing platform and pump components are large, the force required to press them is also large, and jamming often occurs due to uneven pressing force. When the dispensing platform moves up and down, the liquid it contains is also prone to splashing and overflowing, contaminating the bottle and the work surface. Summary of the Invention

[0005] The purpose of this utility model is to solve the problems of traditional press-type liquid dispensing bottles, which require pressing the dispensing platform when dispensing liquid, resulting in laborious dispensing, jamming, and easy liquid splashing.

[0006] To achieve the above technical objectives, this utility model provides a liquid pressing device for a press-type liquid dispensing bottle. The upper part of the liquid pressing device is a horizontal arc-shaped concave liquid dispensing platform. The liquid dispensing platform is installed above the neck of the liquid dispensing bottle through a threaded interface or a bayonet, so it is fixed and avoids the various disadvantages caused by the conventional design that requires pressing the liquid dispensing platform.

[0007] To achieve the function of dispensing liquid by pressing without pressing the dispensing platform, this utility model has a dispensing tube in the middle of the dispensing platform. The top of the dispensing tube is slightly higher than the bottom of the dispensing platform. The dispensing tube is a hollow tube, and its tail end extends into the bottom of the dispensing bottle, remaining below the liquid surface during operation. The tail end of the dispensing tube has a lower sealing ring, with a liquid inlet hole in the middle of the lower sealing ring. Above the liquid inlet hole is a valve bead slightly larger than the liquid inlet hole, forming a simple one-way valve structure, allowing liquid to flow only from the liquid inlet hole into the dispensing tube.

[0008] Inside the liquid dispensing tube is a pressing column with a diameter slightly smaller than the cavity of the liquid dispensing tube, forming a tube gap between the two. The top of the pressing column is a reduced pressing head. The top of the liquid dispensing tube has an upper sealing ring with a hole in the middle. The aforementioned pressing head passes through the hole of the upper sealing ring and protrudes from the top of the liquid dispensing tube. The outer diameter of the pressing head is slightly smaller than the diameter of the hole of the upper sealing ring, forming a liquid outlet slit between the two. There is a spring between the lower part of the pressing column and the lower sealing ring. Under normal circumstances, it pushes the pressing column upward to seal the upper sealing ring, and the pressing head protrudes above the liquid dispensing platform.

[0009] During operation, pressing the press head causes the entire press column to move downwards. The liquid at the bottom of the liquid dispensing tube is pressed and moves upwards along the tube gap. Since the cross-sectional area of ​​the tube gap is much smaller than the cross-sectional area of ​​the inner cavity of the liquid dispensing tube, the upward flow speed of the liquid is much higher than the downward movement speed of the press head. The high-speed liquid flows upwards and finally flows out along the liquid outlet gap between the press head and the upper sealing ring, where it remains on the liquid dispensing platform.

[0010] After the pressing action is completed, release the pressing head. The pressing column returns to its original position under the action of the spring, sealing the liquid outlet to prevent liquid backflow. The space at the bottom of the liquid dispensing tube is restored, and the liquid flows unidirectionally from the liquid inlet to the bottom of the liquid dispensing tube, completing the entire liquid dispensing action.

[0011] Based on the above technical features, the liquid pressing device for the press-type liquid dispensing bottle provided by this utility model has a reasonable and simple structure, low pressing force and smooth operation, and can effectively avoid the waste of liquid splashing and overflowing from old products, and reduce the phenomenon of contamination. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the bottle head structure of a traditional press-type liquid dispensing bottle;

[0013] Figure 2 This is a schematic diagram of the structure of the first embodiment of this utility model;

[0014] Figure 3 yes Figure 2 Enlarged detail view of the bottom of the liquid collection tube in the embodiment;

[0015] Figure 4 yes Figure 2 Enlarged detail view of the upper part of the embodiment;

[0016] 1-Bottle body; 2-Neck; 3-Pressing column; 4-Dispensing tube; 5-Dispensing platform; 6-Lower sealing ring; 7-Flip-top; 8-Upper sealing ring; 9-Dispensing slot; 10-Pipe gap;

[0017] 31-Press head; 60-Liquid inlet; 61-Valve ball; 40-Spring. Detailed Implementation

[0018] 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.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0021] Please see Figure 1 The traditional press-type dispensing bottle has a pump inside the neck (2), and the top of the pump is a concave dispensing platform (5), with the outlet located in the center of the platform. Pressing the dispensing platform (5) causes the pump to move downwards and squeeze out the liquid.

[0022] Because the liquid dispensing platform (5) has a large area, it is easy to cause jamming due to uneven force when pressing. In addition, traditional press pumps are large in size and require a relatively large force when pressing.

[0023] In addition, the liquid dispensing platform (5) contains liquid, and when it moves up and down, especially when it is released and bounces up, the liquid is likely to splash and overflow, resulting in waste and pollution.

[0024] Therefore, the traditional method of dispensing liquid by pressing the dispensing station has problems such as being difficult to press, being prone to jamming, and causing the liquid to splash and overflow.

[0025] Please see Figure 2 The first embodiment of this utility model is shown in the schematic diagram. This utility model provides a liquid pressing device for a press-type liquid dispensing bottle. The upper part of the liquid pressing device is a horizontal arc-shaped concave liquid dispensing platform (5). The liquid dispensing platform (5) is installed above the neck (2) of the liquid dispensing bottle (1) through a threaded interface or a bayonet, so it is fixed and avoids the various disadvantages caused by the conventional design that requires pressing the liquid dispensing platform.

[0026] In order to achieve the function of pressing to dispense liquid without pressing the dispensing platform (5), this utility model provides a dispensing tube (4) in the middle of the dispensing platform (5). The top of the dispensing tube (4) is level with or slightly higher than the bottom of the dispensing platform (5). The dispensing tube (4) is a hollow tube, and its tail end extends into the bottom of the dispensing bottle body (1) and is below the liquid surface during operation. The tail end of the dispensing tube (4) has a lower sealing ring (6), and the middle of the lower sealing ring (6) has a liquid inlet hole (60). Above the liquid inlet hole (60) is a valve bead (61) that is slightly larger than the liquid inlet hole (60), forming a simple one-way valve structure. Liquid can only flow into the dispensing tube (4) in one direction from the liquid inlet hole (60).

[0027] Inside the liquid collection tube (4) is a pressing column (3) with a diameter slightly smaller than the cavity of the liquid collection tube (4), forming a tube gap between the two. The top of the pressing column (3) is a reduced pressing head (31). The top of the liquid collection tube (4) has an upper sealing ring (8), with a hole in the middle of the upper sealing ring (8). The aforementioned pressing head (31) passes through the hole of the upper sealing ring (8) and protrudes from the top of the liquid collection tube (4). The outer diameter of the pressing head (31) is slightly smaller than the hole diameter of the upper sealing ring (8), forming a liquid outlet gap (9) between the two. There is a spring (40) between the pressing column (3) and the lower sealing ring (8). Under normal circumstances, it presses the pressing column (3) upward to seal the upper sealing ring (8), and the pressing head (31) protrudes above the liquid collection platform (5).

[0028] Figure 2 In the embodiment, there is also a flip-top plate (7) that can cover the liquid dispensing platform (5) to seal it. This is the conventional design of the liquid dispensing bottle. The same design also includes screw caps or straight caps, which will not be described in detail here.

[0029] When in operation, by pressing the press head (31), the press column (3) moves downward as a whole. The liquid at the bottom of the liquid collection tube (4) is pressed and moves upward along the tube gap. Since the cross-sectional area of ​​the tube gap is much smaller than the cross-sectional area of ​​the inner cavity of the liquid collection tube (4), the upward flow speed of the liquid is much higher than the downward movement speed of the press head (31). The high-speed liquid flows upward and finally flows out along the liquid outlet gap (9) between the press head (31) and the upper closed ring, and then stays on the liquid collection platform (5).

[0030] After the pressing action is completed, release the pressing head (31), and the pressing column (3) returns to its original position under the action of the spring, while sealing the liquid outlet (9) to prevent liquid backflow. The space at the bottom of the liquid collection tube (4) is restored, and the liquid flows from the liquid inlet (60) into the bottom of the liquid collection tube (4) in one direction, completing the entire liquid collection action.

[0031] Please refer to Figure 3 and Figure 4 The details at the top and bottom ends are mainly reflected in the size of the gaps between the components, which has a significant impact on the performance of this utility model. Specifically, a larger gap width will reduce the flow rate of the liquid under pressure and affect the liquid discharge effect, but a gap width that is too narrow will also affect the liquid flow and reduce the liquid discharge volume. In order to achieve better performance, the gap between the pressing column (3) and the liquid dispensing tube (4), and the width of the liquid dispensing gap (9) between the pressing head (31) and the upper sealing ring (8) are less than 0.5 mm, and preferably 0.2-0.3 mm.

[0032] exist Figure 1-3 In the embodiment shown, the outer diameter of the liquid collection tube (4) is 8 mm, the inner diameter is 6.2 mm, the diameter of the pressing column (3) is 6 mm, the inner diameter of the upper sealing ring (8) is 4.3 mm, and the diameter of the pressing head (31) is 4 mm, which can achieve better pressing effect and liquid output.

[0033] The dimensions of the above components can be adjusted according to the size of the liquid dispensing bottle and should not be considered as limitations.

[0034] The above description is merely a preferred embodiment of this utility model. In actual deployment, due to different production process requirements, it is not possible to operate entirely according to the above embodiments. Therefore, the embodiments of this utility model should not be construed as limitations on the present invention. It should be noted that for those skilled in the art, several improvements and adjustments can be made without departing from the technical principles of this utility model, and these improvements and adjustments should also be considered within the effective protection scope of this invention.

Claims

1. A liquid pressing device of a press-type liquid taking bottle, which is installed above a bottle neck of a liquid taking bottle through a threaded interface or a bayonet, characterized in that: The upper part of the liquid pressing device is a horizontal arc-shaped concave liquid taking table, the middle part of the liquid taking table has a liquid taking pipe, the liquid taking pipe is a hollow pipe, the tail end of the liquid taking pipe has a lower closed ring, the middle part of the lower closed ring has a liquid inlet hole, the upper part of the liquid inlet hole has a valve bead slightly larger than the liquid inlet hole, the inside of the liquid taking pipe has a pressing column with a diameter slightly smaller than the cavity of the liquid taking pipe, the top end of the pressing column is a reduced pressing head, the top end of the liquid taking pipe has an upper closed ring, the middle part of the upper closed ring has a hole, the aforementioned pressing head passes through the hole of the upper closed ring, and the lower part of the pressing column and the upper closed ring have a spring therebetween.

2. A liquid pressing device for a press-type liquid taking bottle according to claim 1, characterized in that: The gap between the pressing column and the liquid taking pipe, and the liquid outlet gap width between the pressing head and the upper closed ring, are less than 0.5 mm.

3. A liquid pressing device for pressing liquid from a bottle according to claim 2, wherein: The gap between the pressing column and the liquid taking pipe, and the liquid outlet gap width between the pressing head and the upper closed ring, are 0.2-0.3 mm.

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