CN209739726U - One-way valve vial cap - Google Patents

Abstract

The utility model belongs to the field of medicine, in particular to a vial cap. A one-way valve bottle cap of the utility model includes a plastic bottle cap and a one-way valve detachably arranged on the plastic bottle cap. The one-way valve is a hollow structure connected up and down. The one-way valve includes a body and a conical The tapered part is used to insert into the plastic bottle cap. There is a valve plate rotatable inside the body. The length of the valve plate is greater than the width of the hollow structure of the body, and the width matches the width of the hollow structure of the body. The valve plate includes a fixed end and a floating end. The floating end is rotatably installed inside the body. When the bottle mouth of the bottle body faces upwards, the floating end is located at the lower part of the fixed end. Turn the medicine bottle upside down, and the valve plate will seal the hollow structure in the body downward under the action of gravity to prevent the medicine liquid from flowing out; when the air pressure in the medicine bottle is too low, under the action of the atmospheric pressure outside the bottle, the internal and external pressure difference pushes the valve plate to rotate upward , the air enters to balance the air pressure inside and outside the bottle, the valve slides down, the hollow structure is closed, and the needle is convenient for taking medicine.

Description

One-way valve vial cap

technical field

The utility model belongs to the field of medicine, in particular to a vial cap.

Background technique

Penicillin bottle, also known as: borosilicate glass or soda lime glass control (molded) injection bottle, is a small bottle sealed with a rubber stopper. In the early days, penicillin was often used as a container, so it was called a vial. Because of its good airtightness, it is often used as a medicine storage container.

Medicines in vials are different from medicines in ampoule bottles: ampoule bottles are sealed high-quality glass products, which generally store liquid medicines and can be used directly after opening; while vials are sealed with rubber stoppers, most of which store powdered medicines, and require Physicians and nurses prepare it with liquid before each use. While the bottle cap of the rubber stopper has the advantage of sealing, there is also the problem that after the liquid is injected, the negative pressure in the bottle is too large, so that it is laborious to extract the medicine, which brings inconvenience to the doctors and nurses who work every day. Choose the method of injecting gas into the bottle to draw medicine, it is easy to cause excessive pressure at the syringe joint due to gas compression, and it is easy to fall off, resulting in cheap medicine.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a one-way valve type cillin bottle cap which is convenient for taking medicine.

A one-way valve type Xilin bottle cap in the utility model includes a plastic bottle cap and a one-way valve detachably arranged on the plastic bottle cap. The one-way valve is a hollow structure connected up and down. The one-way valve includes a body and a cone The tapered part is used to insert into the plastic bottle cap. There is a valve plate rotatable inside the body. The length of the valve plate is greater than the width of the hollow structure of the body, and the width matches the width of the hollow structure of the body. The valve plate includes a fixed end and a floating end. The floating end is rotatably installed inside the body. When the bottle mouth of the bottle body faces upwards, the floating end is located at the lower part of the fixed end. Turn the medicine bottle upside down, and the valve plate will seal the hollow structure in the body downward under the action of gravity to prevent the medicine liquid from flowing out; when the air pressure in the medicine bottle is too low, under the action of the atmospheric pressure outside the bottle, the internal and external pressure difference pushes the valve plate to rotate upwards , the air enters to balance the air pressure inside and outside the bottle, the valve slides down, the hollow structure is closed, and the needle is convenient for taking medicine.

Preferably, the valve plate is made of silica gel. Low cost and easy to process.

Preferably, the one-way valve is made of plastic. High molding precision and easy maintenance.

The beneficial effects of the utility model: when the medicine bottle is turned upside down, the valve plate will seal the hollow structure in the body downward under the action of gravity to prevent the medicine liquid from flowing out; when the air pressure in the medicine bottle is too low, under the action of the atmospheric pressure outside the bottle, The pressure difference pushes the valve plate to rotate upwards, and the air enters to balance the air pressure inside and outside the bottle. The valve plate slides down to close the hollow structure, and the needle is convenient for taking medicine.

Description of drawings

Fig. 1 is a schematic diagram of the normal placement state of the medicine bottle.

Fig. 2 is a schematic diagram of the state of the medicine bottle after inserting the one-way valve type vial cap.

Fig. 3 is a schematic diagram of the state of the medicine bottle when taking the medicine.

Marks in the figure: 1. bottle body, 2. plastic bottle cap, 3. tapered part, 4. valve plate, 5. body.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings, but it should not be understood that the scope of the above-mentioned subject of the utility model is limited to the above-mentioned embodiments.

As shown in Figure 1, when the medicine bottle is placed normally, the bottle mouth of the bottle body 1 faces upwards, and the plastic bottle cap 2 is used to close the bottle mouth. As shown in Figure 2-3, the one-way valve vial cap includes a plastic bottle cap 2 and a one-way valve detachably arranged on the plastic bottle cap 2. The one-way valve is a hollow structure connected up and down, and the one-way valve includes a body. 5 and the tapered part 3, the tapered part 3 is used for inserting in the plastic bottle cap 2, the inside of the body 5 is rotatably provided with a valve plate 4, the length of the valve plate 4 is greater than the width of the hollow structure of the body, and the width matches the width of the hollow structure of the body, The valve plate 4 includes a fixed end and a floating end. The fixed end is rotatably installed inside the body 5. When the bottle mouth of the bottle body 1 faces upwards, the floating end is located at the lower part of the fixed end. Turn the medicine bottle upside down, and the valve plate 4 will seal the hollow structure in the body 5 downward under the action of gravity to prevent the medicine liquid from flowing out; The valve plate 4 rotates upwards, and the air enters to balance the air pressure inside and outside the bottle body 1. The valve plate 4 slides downwards to close the hollow structure, and the needle is convenient for taking medicine.

Claims (3)

1. The utility model provides a check valve formula xiLin bottle lid, including the plastic bottle lid, a serial communication port, still including dismantling the check valve that sets up on the plastic bottle lid, the hollow structure of check valve for intercommunication from top to bottom, the check valve includes body and toper portion, toper portion is arranged in inserting the plastic bottle lid, the inside rotatable valve block that is equipped with of body, valve block length is greater than body hollow structure width, width and the cooperation of body hollow structure width, the valve block includes stiff end and floating end, the rotatable installation of stiff end is inside the body, when the bottleneck of bottle up, floating end is located the stiff end lower part.

2. The one-way valve type penicillin bottle cap as claimed in claim 1, comprising a plastic bottle cap, wherein the valve plate is made of silica gel.

3. The one-way valve type penicillin bottle cap as claimed in claim 1, comprising a plastic bottle cap, wherein the one-way valve is made of plastic.