CN210933113U - Easily welded liquid leakage prevention infusion hose - Google Patents

Abstract

The utility model discloses an easy welded prevention of liquid leakage infusion hose belongs to medicine package material technical field. Including the transversal oval-shaped plastic hose that personally submits, be equipped with the transfusion cavity that runs through along the axial in plastic hose, be connected with integrated into one piece's transition angle respectively at oval-shaped plastic hose's both ends, the transition angle is the dogleg shape that two straight lines constitute, be level and smooth curved surface structure between transition angle and the oval-shaped plastic hose. The utility model discloses a unique radian design has effectively reduced the tensile length of membrane material when infusion hose and membrane material welding, because its material is softer, has certain toughness to effectively reduce the extrusion influence of welding hard mould to membrane material when welding with infusion hose, the effectual weeping rate of controlling the product.

Description

Easily welded liquid leakage prevention infusion hose

Technical Field

The utility model relates to a medicine package material technical field, more specifically the utility model relates to an easy welded prevention of liquid leakage infusion hose that says so.

Background

With the popularization of large infusion non-PVC soft bag package large infusion in the Chinese medicine market, the appearance of non-PVC hard tube and hose infusion hose bags with various shapes, and for the non-PVC hose of the hard tube and the hose infusion hose, the technical problem that each pharmaceutical factory is very headache is the problem of liquid leakage.

The main part of the non-PVC soft bag product, which generates liquid leakage, is located at the joint of the infusion hoses (the liquid leakage of the infusion hose part accounts for more than 90% of the total liquid leakage, and the main reason of the liquid leakage is the reason of the design and the forming of the bag body.

The first reason is as follows: the hard tube and the hose infusion hose are designed for ensuring the flow of the liquid medicine, and the film material is stretched greatly in the welding process; the hard tube and the soft tube transfusion soft tube are mainly circular, and the geometric transition of the membrane material at the left side and the right side of the transfusion soft tube is relatively discontinuous, as shown in figure 1.

The second reason is that: the stretched and thinned membrane is extruded by the die and the infusion hose in the welding process, so that the membrane at the welding and connecting part of the infusion hose becomes very weak.

The third reason is that: if the welding at the position of the infusion hose is lighter, the potential quality risk of the product is probably not achieved in a sealing effect, so that the risk of leakage is not generated in a general pharmaceutical factory, the part of the infusion hose of the product is heavier in welding for ensuring the tightness in the production process, after the welding is too heavy, the membrane is more seriously extruded, and the liquid leakage probability in the subsequent transportation and use processes is correspondingly increased. The leakage problem of the soft bag is always a technical problem in the field of medical packaging materials by combining the reasons.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an easy welded prevention of liquid leakage infusion hose. The utility model discloses a unique radian design has effectively reduced the tensile length of membrane material when infusion hose and membrane material welding, because its material is softer, has certain toughness to effectively reduce the extrusion influence of welding hard mould to membrane material when welding with infusion hose, the effectual weeping rate of controlling the product.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an easy welded prevention of liquid leakage infusion hose, includes that the cross section is oval-shaped plastic hose, is equipped with the infusion chamber that runs through along the axial in plastic hose, is connected with integrated into one piece's transition angle respectively at oval-shaped plastic hose's both ends, the transition angle is the broken line shape that two straight lines constitute, be level and smooth curved surface structure between transition angle and the oval-shaped plastic hose.

The liquid hose of the utility model is made of a plastic hose with an oval cross section, a penetrating transfusion cavity is arranged in the plastic hose to form a transfusion tube, meanwhile, two ends of the elliptical plastic hose are respectively connected with an integrally formed transition angle, a smooth curved surface structure is arranged between the transition angle and the elliptical plastic hose, this ensures that when the infusion hose and the membrane material of the infusion bag are welded, the wall thickness of the heat sealing position is increased in a targeted manner, the geometric transition of the transition angles at the left and right sides of the membrane material and the plastic hose is transition continuous, the membrane material is ensured to be attached to the outer wall of the infusion hose as far as possible, the stretching length of the membrane material when the infusion hose and the membrane material are welded is effectively reduced, because the material is softer, the extrusion influence on the membrane material when the welding hard die and the infusion hose are welded is effectively reduced by certain toughness, and the liquid leakage rate of the product is effectively controlled.

Further, the angle of the transition angle is 35-40 degrees. The test shows that the membrane material can be attached to the outer wall of the infusion hose as far as possible within the angle range, and the stretching length of the membrane material is effectively reduced when the infusion hose and the membrane material are welded.

Furthermore, the cross section of the infusion cavity is elliptical, and the long axis of the infusion cavity and the long axis of the plastic hose are arranged in parallel. Such an arrangement is easy to manufacture from a manufacturing process point of view.

Furthermore, the cross section of the infusion cavity is oval, and the long axis of the infusion cavity and the long axis of the plastic hose are vertically arranged. The structure in transfusion cavity in this embodiment can make the wall thickness that increases the heat-seal position with the infusion hose welded position pertinence that the membrane material is connected, can design the transition angle, lets the geometry transition natural continuous, guarantees that the membrane material laminates infusion hose's outer wall as far as.

Further, the plastic hose is made of polypropylene. The plastic hose described herein includes, but is not limited to, polypropylene material.

Compared with the prior art, the utility model beneficial effect who has is:

1. the utility model discloses simple structure, convenient to use are nimble, and the user can oneself make into different length as required. Adopt unique radian design effectively to reduce the tensile length of membrane material when infusion hose and membrane material weld, because its material is softer, have certain toughness effectively to reduce the extrusion influence to the membrane material when welding hard mould and infusion hose weld, the effectual weeping rate of controlling the product.

2. The utility model discloses be connected with integrated into one piece's transition angle respectively at oval-shaped plastic hose's both ends, be level and smooth curved surface structure between transition angle and the oval-shaped plastic hose, this has just guaranteed will the utility model discloses a during infusion hose and infusion bag's membrane material welding, the wall thickness of heat-seal position is increased pertinence, the geometric transition of the transition angle of the left and right sides of membrane material and plastic hose is transition continuous, guarantee the outer wall of membrane material laminating infusion hose as far as, the tensile length of membrane material when effectively having reduced infusion hose and membrane material welding, because its material is softer, have certain toughness and effectively reduced the extrusion influence to the membrane material when welding hard mould and infusion hose welding, the effectual weeping rate of controlling the product.

Drawings

FIG. 1 is a schematic view of an easily welded anti-leakage infusion hose of the present invention, showing the connection of the membrane material and the two sides of the infusion hose in the prior art;

FIG. 2 is a schematic view of a drip-proof infusion tube which is easily welded in embodiment 1;

FIG. 3 is a schematic view of a drip-proof infusion tube which is easily welded in embodiment 2;

fig. 4 is a schematic view of the connection between the easily welded anti-leakage infusion hose and the membrane material of the present invention.

The labels in the figure are: 1-plastic hose, 2-transfusion cavity, 3-transition angle and 4-membrane material.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

as shown in fig. 2-4, an easily welded anti-leakage infusion hose includes a plastic hose 1 with an oval cross section, and an infusion cavity 2 is axially disposed in the plastic hose 1, in this embodiment, the cross section of the infusion cavity 2 is oval, and a long axis of the infusion cavity 2 is parallel to a long axis of the plastic hose 1. Such an arrangement is easy to manufacture from a manufacturing process point of view. The two ends of the oval plastic hose 1 are respectively connected with an integrally formed transition angle 3, the transition angle 3 is a fold line shape formed by two straight lines, and a smooth curved surface structure is arranged between the transition angle 3 and the oval plastic hose 1. In the present embodiment, the plastic hose 1 is made of polypropylene.

The liquid hose of the utility model is made of the plastic hose 1 with an oval cross section, a through transfusion cavity 2 is arranged in the plastic hose 1 to form a transfusion tube, meanwhile, two ends of the oval plastic hose 1 are respectively connected with an integrated transition angle 3, a smooth curved surface structure is arranged between the transition angle 3 and the oval plastic hose 1, which ensures that the wall thickness of a heat sealing position is increased pertinently when the transfusion hose of the utility model is welded with a membrane material 4 of a transfusion bag, the geometric transition of the transition angles 3 at the left side and the right side of the membrane material 4 and the plastic hose 1 is transition continuous, the membrane material 4 is ensured to be attached to the outer wall of the transfusion hose as much as possible, the stretching length of the membrane material 4 when the transfusion hose is welded with the membrane material 4 is effectively reduced, and the extrusion influence on the membrane material 4 when a welding hard die is welded with the transfusion hose is effectively reduced due to the soft material, certain toughness, the leakage rate of the product is effectively controlled.

On the other hand, stress concentration generally appears in the place that the object shape sharply changes, consequently, the utility model discloses change circular infusion hose into the ellipse that has transition angle 3, can alleviate the stress concentration degree around the infusion hose greatly. The welding strength of the outer walls of the membrane material 4 and the infusion hose is enhanced, and the risk of liquid leakage caused by damage of the membrane material 4 is reduced.

Preferably, the transition angle 3 is between 35 ° and 40 °. The test shows that the membrane material 4 can be attached to the outer wall of the infusion hose as far as possible within the angle range, and the stretching length of the membrane material 4 is effectively reduced when the infusion hose is welded with the membrane material 4.

Example 2:

as shown in fig. 3, the present embodiment is further optimized based on embodiment 1, and the present embodiment focuses on explaining the improvement compared to embodiment 1, and the same points are not repeated, in the present embodiment, the cross section of the infusion lumen 2 is elliptical, and the long axis of the infusion lumen 2 and the long axis of the plastic hose 1 are vertically arranged. The structure of infusion chamber 2 in this embodiment can make the wall thickness that increases the heat-seal position with the infusion hose welded position pertinence that membrane material 4 is connected, can design transition angle 3, lets the geometry transition natural continuous, guarantees that membrane material 4 laminates infusion hose's outer wall as far as.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. The utility model provides an easy welded prevention of liquid leakage infusion hose, its characterized in that includes that the cross section is oval-shaped plastic hose (1), is equipped with infusion chamber (2) that run through along the axial in plastic hose (1), is connected with integrated into one piece's transition angle (3) respectively at oval-shaped plastic hose's (1) both ends, transition angle (3) are the broken line shape that two straight lines constitute, be level and smooth curved surface structure between transition angle (3) and oval-shaped plastic hose (1).

2. The easy-to-weld leakage-proof infusion hose according to claim 1, wherein the transition angle (3) is 35-40 °.

3. The easy-to-weld leakage-proof infusion hose according to claim 1, wherein the cross section of the infusion cavity (2) is elliptical, and the long axis of the infusion cavity (2) and the long axis of the plastic hose (1) are arranged in parallel.

4. The easy-to-weld leakage-proof infusion hose according to claim 1, wherein the cross section of the infusion cavity (2) is elliptical, and the long axis of the infusion cavity (2) and the long axis of the plastic hose (1) are arranged vertically.

5. A weldable, leak-proof infusion hose according to any one of claims 1-4, wherein the plastic hose (1) is made of polypropylene.

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