Pesticide applying device

Abstract

The invention discloses a pesticide applying device which comprises a bottle body, elastic corrugated pipes, an extrusion part, a rubber gasket and a threaded butt-joint port, the elastic corrugated pipes are installed on the outer side of the bottle body at equal intervals, the rubber gasket is fixedly installed at the bottom of the bottle body, the threaded butt-joint port is fixedly installed at the top of the bottle body, and the threaded butt-joint port is connected with a double-taper pipe through a threaded butt-joint sleeve. A liquid outlet head is fixedly mounted at the top of the double-taper pipe, a threaded cap is connected to the outer side of the liquid outlet head, and a limiting convex ring is fixedly mounted on the outer side of the double-taper pipe. According to the pesticide applying device, the elastic corrugated pipes which are distributed at equal intervals are arranged on the periphery of the bottle body and combined with the arc-shaped extrusion part which is sunken inwards, so that the friction force between the bottle body and the hand of a user is greatly increased, and misoperation or bottle falling caused by hand slipping is effectively prevented. Meanwhile, the structure provides a definite force application point for the fingers, so that the extrusion action is more labor-saving and more accurate, and is particularly suitable for an environment with a weak hand or a wet and slippery hand.

Description

Technical Field

[0001] This invention relates to the field of pesticide application devices, specifically a pesticide application device. Background Technology

[0002] In the fields of medical care, nursing and daily medication administration, dispensing bottles are a common basic device, widely used to hold and dispense eye drops, ear drops, oral liquids or other liquid medications. Traditional dispensing bottles mostly use a simple plastic bottle body with a conical dispensing head structure, and the dispensing volume is mainly controlled by the user's squeezing force and experience, which has obvious defects.

[0003] A drug delivery device, disclosed in CN218980198U, includes a vertically positioned drug storage bottle with a detachable stopper at the bottle opening. The stopper has a vertically positioned application tube and an injection tube. The application tube extends to the lower interior of the drug storage bottle, and the injection tube extends to the upper interior. A valve is located on the application tube outside the stopper. A conduit is detachably connected to the outer end of the application tube, and a nozzle is located at the end of the conduit. A three-way valve is located on the injection tube, and a syringe is detachably connected to the outer end of the injection tube via a second connector. A pressure gauge is located at the top of the stopper and is connected to the drug storage bottle. A filter screen, acting as a filter, is located at the bottom of the inside of the drug storage bottle. This invention has a simple structure and is easy to use.

[0004] First, the application bottle of this device is a smooth cylindrical or conical shape. When applying the medicine, especially when the hands are wet or it is inconvenient to exert force, it is easy to slip, which leads to inconvenience in operation, failure to pick up the medicine, or even accidental drop, affecting the accuracy and safety of the application.

[0005] Secondly, when the medication bottle is squeezed out, the flow rate of the medication is not easy to control. It is easy for the medication to splash or drip too much at once due to excessive instantaneous pressure, resulting in waste of medication. It may even cause discomfort or safety hazards due to overdose. This problem is particularly prominent in scenarios that require precise measurement, such as certain ophthalmological or pediatric medications.

[0006] In addition, the existing devices are relatively simple in function. Their liquid outlet channels are usually simple straight-through structures, which cannot effectively regulate the flow of the liquid. They lack functions such as slowing down the flow rate, homogenizing the flow rate, or producing atomization effects. At the same time, the connection between the bottle and the liquid outlet head is fixed, which makes it inconvenient to disassemble, clean, or replace different types of liquid outlet heads, resulting in hygiene dead spots and insufficient flexibility in use.

[0007] Therefore, we propose a drug delivery device to address the problems mentioned above. Summary of the Invention

[0008] The purpose of this invention is to provide a drug application device to solve the problems mentioned in the background art. Existing drug application devices on the market have the following drawbacks: the bottle is a smooth cylindrical or conical shape, which makes it easy to slip during application, especially when hands are wet or it is inconvenient to apply force. This leads to inconvenience in operation, failure to pick up the drug, or even accidental drop, affecting the accuracy and safety of drug application. Furthermore, when the drug bottle is squeezed out, the flow rate of the drug is difficult to control, and excessive pressure can easily cause splashing or excessive dripping, resulting in waste of the drug and potentially causing discomfort or safety hazards due to overdose. Additionally, existing devices have limited functionality; their liquid outlet channels are usually simple straight-through structures, which cannot effectively regulate the flow of the drug and lack functions such as slowing down the flow rate, homogenizing the flow, or producing an atomization effect.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a drug application device, comprising a bottle body, an elastic corrugated tube, a squeezing part, a rubber gasket, and a threaded interface. The elastic corrugated tube is equidistantly installed on the outer side of the bottle body, and a rubber gasket is fixedly installed at the bottom of the bottle body. A threaded interface is fixedly installed on the top of the bottle body, and a double conical tube is connected to the threaded interface through a threaded mating sleeve. A liquid outlet head is fixedly installed on the top of the double conical tube, and a threaded cap is connected to the outer side of the liquid outlet head. A limit ring is fixedly installed on the outer side of the double conical tube.

[0010] Preferably, there are multiple elastic corrugated tubes, which are equidistantly distributed along the circumference of the bottle, and a compression section is formed between adjacent elastic corrugated tubes. The compression section is an arc-shaped structure that is concave into the bottle.

[0011] Specifically, when a finger applies force to the curved extrusion section, the pressure is evenly transmitted to the elastic bellows on both sides, causing them to produce coordinated and efficient bending deformation. This design ensures that the bottle can undergo uniform and controllable volume shrinkage during extrusion, rather than unpredictable local collapse, which is crucial for producing a stable and continuous flow of medicine.

[0012] Preferably, the elastic corrugated tube and the bottle body are integrally injection molded structures.

[0013] Specifically, the integrated structure ensures that when the external squeezing force disappears, the rebound force of the elastic bellows can be directly transmitted to the entire bottle without loss, allowing it to quickly return to its original shape and generate a stable negative pressure to draw in air, preparing for the next medication. This sensitivity and consistency of response is unmatched by a split structure.

[0014] Preferably, the threaded interface is connected to the threaded sleeve through a threaded hole on the outside.

[0015] Specifically, threaded connection is a mature and stable mechanical connection method that can provide sufficient connection strength to prevent accidental detachment during use. Users can easily separate the double conical tube module from the bottle body by unscrewing the threaded coupling sleeve.

[0016] Preferably, a sealing gasket is fixedly installed at the bottom of the threaded mating sleeve.

[0017] Specifically, sealing gaskets can enhance the overall sealing of the bottle.

[0018] Preferably, the double conical tube has a waist drum shape structure that is thinner in the middle and thicker at both ends.

[0019] Specifically, this structure "combed" the flow of the liquid medicine, transforming the unstable squeezing pulse pressure from the bottle into a liquid flow that is accelerated in the narrow section and then becomes stable and concentrated again in the outlet section. This effectively avoids the problems of liquid medicine splashing, spraying, or excessive dripping caused by sudden and forceful squeezing, making the liquid output more uniform and controllable.

[0020] Preferably, the liquid outlet head is connected to the threaded cap via a screw hole on the outer side.

[0021] Specifically, the threaded cap can protect the liquid outlet head and prevent it from being contaminated.

[0022] Preferably, the outer diameter of the limiting protrusion is larger than the inner diameter of the threaded cap.

[0023] Specifically, the limiting ring can fix the head of the bottle.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the application device is provided with: 1. Excellent anti-slip performance and ease of operation: By setting equidistantly distributed elastic corrugated tubes around the outer periphery of the bottle and combining them with the inwardly concave arc-shaped extrusion part, the friction between the bottle and the user's hand is greatly increased, effectively preventing operational errors or bottle drops caused by slipping hands. At the same time, this structure provides a clear point of force application for the fingers, making the squeezing action more effortless and precise, especially suitable for environments where hands are weak or slippery.

[0025] 2. Controllable dispensing volume, effectively preventing waste: The unique double-cone tube (waist drum shape) design forms a Venturi tube structure. When the bottle is squeezed, the liquid flows through the narrow middle section and accelerates, forming a relatively stable and easily controllable liquid flow or droplets at the outlet. This avoids splashing caused by a sudden increase in pressure, making the dispensing volume more uniform and controllable each time, reducing liquid waste and ensuring the accuracy of the dosage.

[0026] 3. Excellent sealing and hygiene: The multi-seal design of threaded fitting sleeve, rubber gasket, and sealing gasket ensures reliable sealing at the connection between the bottle and the double conical tube, preventing leakage or contamination of the liquid. The threaded cap on the dispensing head can effectively seal the dispensing port when not in use, preventing dust intrusion and liquid evaporation, thus ensuring the hygiene and safety of the medicine.

[0027] 4. Modular connection and functional expandability: The bottle body is detachably connected to the double conical tube through threaded interface and threaded mating sleeve. This modular design allows each part to be easily disassembled for thorough cleaning, eliminating hygiene dead corners. At the same time, users can replace the double conical tube module with different liquid outlets (such as dripping, spraying, etc.) as needed, which greatly improves the practicality and flexibility of the device. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the bottom of the bottle body of the present invention; Figure 3 This is a top view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the overall bottom view of the present invention; Figure 5 This is a schematic diagram of the overall left-side view of the present invention; Figure 6 This is a schematic diagram of the overall right-side view of the present invention; Figure 7 This is a schematic diagram of the overall front structure of the present invention; Figure 8 This is a schematic diagram of the overall rear view structure of the present invention.

[0029] In the diagram: 1. Bottle body; 2. Elastic bellows; 3. Extrusion section; 4. Rubber gasket; 5. Threaded interface; 6. Threaded mating sleeve; 601. Anti-slip stripe; 7. Sealing gasket; 8. Double conical tube; 9. Dispensing head; 10. Threaded cap; 11. Limiting ring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-8The present invention provides a technical solution: a drug application device, comprising a bottle body 1, an elastic corrugated tube 2, a squeezing part 3, a rubber gasket 4, and a threaded interface 5. The elastic corrugated tube 2 is equidistantly installed on the outer side of the bottle body 1, and the rubber gasket 4 is fixedly installed at the bottom of the bottle body 1. The threaded interface 5 is fixedly installed at the top of the bottle body 1, and the threaded interface 5 is connected to a double conical tube 8 through a threaded mating sleeve 6. The liquid outlet head 9 is fixedly installed at the top of the double conical tube 8, and a threaded cap 10 is connected to the outer side of the liquid outlet head 9. A limiting ring 11 is fixedly installed on the outer side of the double conical tube 8. There are multiple elastic bellows 2, which are evenly distributed around the circumference of the bottle body 1, and an extrusion section 3 is formed between adjacent elastic bellows 2. The extrusion section 3 is an arc-shaped structure that is concave into the bottle body 1. The elastic bellows 2 and the bottle body 1 are integrally injection molded structures. The threaded interface 5 is connected to the threaded mating sleeve 6 through the threaded hole on the outside. Anti-slip stripes 601 are installed at equal angles on the outer surface of the threaded mating sleeve 6. A sealing gasket 7 is fixedly installed at the bottom of the threaded mating sleeve 6. The double conical tube 8 is a waist drum-shaped structure that is thin in the middle and thick at both ends. The liquid outlet 9 is connected to the threaded cap 10 through the threaded hole on the outside. The outer diameter of the limiting convex ring 11 is larger than the inner diameter of the threaded cap 10. In this structure, the user holds the bottle body 1 with their fingers naturally placed on the compression part 3 formed by adjacent elastic bellows 2. Because the compression part 3 is an inwardly concave arc structure, it provides an ideal point of force for the fingers, engaging the limiting ring 11 on the outer side of the double conical tube 8 with the external fixing component, thus fixing the head of the bottle body 1. When the fingers squeeze the rubber gasket 4 at the bottom of the bottle body 1, the elastic bellows 2 bend and deform due to its flexibility, causing the internal volume of the bottle body 1 to decrease. According to Boyle's law, in a confined space, a decrease in volume leads to a rapid increase in internal air pressure. Throughout this process, the bottle body 1... The top sealing gasket 7 ensures the sealing of the connection between the threaded interface 5 and the threaded sleeve 6, while the threaded cap 10 at the end of the dispensing head 9 has been unscrewed. Therefore, the bottle body 1, the double conical tube 8, and the dispensing head 9 together form a "closed" pressure system that is only open at the outlet. The increased air pressure inside the bottle acts on the surface of the liquid, forcing the liquid to flow upward into the inlet of the double conical tube 8. After entering the double conical tube 8, the liquid flows from the coarse section to the narrow section in the middle. According to the fluid continuity equation, when flowing through a narrow section with a reduced cross-sectional area, the fluid velocity will increase significantly. According to Bernoulli's principle, the increase in fluid velocity will lead to an increase in its static pressure. The pressure decreases, thus creating a localized low-pressure zone in the narrowest part of the biconical tube 8. This "narrow in the middle and wide at both ends" structure is a typical Venturi tube. This effect allows the liquid to be smoothly "drawn" and accelerated through the narrow section, avoiding the turbulence and splashing that might occur in a normal straight tube due to sudden compression. The accelerated liquid enters the wider section at the outlet of the biconical tube 8, where the flow rate slows down and the static pressure recovers. Finally, it is discharged from the outlet head 9 as a relatively stable and concentrated stream, forming easily controllable droplets or fine streams. When the user releases their hand, the external force applied to the squeezing part 3 disappears. At this time, because the materials used to manufacture bottle 1 and the elastic bellows 2 (such as PE, PP, etc.) have natural elastic deformation recovery capabilities, they will automatically rebound after the external force disappears, attempting to restore their original shape. This rebound process increases the internal volume of bottle 1, thereby creating a temporary negative pressure (lower than atmospheric pressure). Under the action of atmospheric pressure, external air will be drawn back into the bottle through the liquid outlet 9, restoring the pressure inside and outside the bottle to balance, preparing for the next squeezing application. This device ingeniously combines ergonomics, fluid mechanics, and materials science, ultimately achieving the beneficial effects of anti-slip, labor-saving, and precise volume control.

[0032] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and 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 the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A medicine administration device comprising a bottle body (1), an elastic bellow (2), a squeezing part (3), a rubber gasket (4) and a threaded joint (5), characterized in that, The bottle body (1) is mounted with elastic bellows (2) at equal intervals outside, and the bottom of the bottle body (1) is fixedly mounted with a rubber gasket (4), the top of the bottle body (1) is fixedly mounted with a threaded butt joint (5), and the threaded butt joint (5) is connected with a double-cone tube (8) through a threaded butt joint sleeve (6), the top of the double-cone tube (8) is fixedly mounted with a liquid outlet head (9), and the liquid outlet head (9) is connected with a threaded cap (10) outside, and the double-cone tube (8) is fixedly mounted with a limiting convex ring (11) outside.

2. A device according to claim 1, wherein: The number of the elastic bellows (2) is multiple, and they are distributed at equal intervals along the circumference of the bottle body (1), and the adjacent elastic bellows (2) form a pressing part (3), which is an arc-shaped structure recessed to the inside of the bottle body (1).

3. A device according to claim 2, wherein: The elastic bellows (2) and the bottle body (1) are integrally injection molded.

4. The device of claim 1, wherein: The threaded butt joint (5) is connected with the threaded butt joint sleeve (6) through the screw holes formed outside.

5. The device of claim 1, wherein: The outer surface of the threaded butt joint sleeve (6) is mounted with anti-skid stripes (601) at equal angles.

6. A device according to claim 5, wherein: The bottom of the threaded butt joint sleeve (6) is fixedly mounted with a sealing gasket (7).

7. The device of claim 1, wherein: The double-cone tube (8) is a drum shape structure with thin middle and thick ends.

8. The device of claim 1, wherein: The liquid outlet head (9) is connected with the threaded cap (10) through the screw holes formed outside.

9. The device of claim 1, wherein: The outer diameter of the limiting convex ring (11) is greater than the inner diameter of the threaded cap (10).

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