Elastic sheet type structure of hose injection head opening

Abstract

The utility model relates to an elastic piece type structure of a hose injection head opening portion, which comprises a pipe body, a cavity used for storing materials is arranged in the pipe body, a hose injection head is arranged on the pipe body, a discharging port is arranged on the hose injection head, and the discharging port is communicated with the cavity in the pipe body. Wherein a plurality of elastic pieces are arranged on the inner wall of the discharging port, the hose body, the hose injection head and the elastic pieces are integrally formed in an injection molding mode, the elastic pieces cover the discharging port, and gaps for a material body to penetrate through are formed among the elastic pieces. According to the utility model, the elastic sheet type structure at the opening part of the hose injection head is convenient to operate, and the viscosity range of adaptive inner materials is high; compared with a discharge port with a fixed size which can only be matched with a material body with a certain small-range consistency, the structure can solve the problems that high-viscosity inner materials are not easy to extrude out when a hose with a fixed aperture is used and low-viscosity inner materials drip due to gravity when the hose with the fixed aperture is used; in addition, when the pressure of the bottle body or the tube body is cancelled, the elastic piece can be automatically closed, the hole diameter is reduced, and material dripping is prevented.

Description

Technical Field

[0001] This utility model relates to the field of packaging hose technology, and in particular to a spring-type structure for the nozzle of a hose. Background Technology

[0002] Packaging tubes have become a common packaging solution for paste-like materials such as toothpaste, food, and cosmetics due to their excellent properties such as light weight, portability, ease of use, durability, recyclability, and easy extrusion, as well as their good printability.

[0003] Packaging tubes typically have a discharge port to allow the material to be extruded when the tube is squeezed. The diameter of the discharge port on a typical packaging tube is fixed. Normally, a larger discharge port diameter is suitable for materials with higher consistency, while a smaller diameter is suitable for materials with lower consistency. Therefore, a single product cannot be used with multiple materials. Furthermore, even with the same formula, subtle differences in actual production parameters or different storage temperatures can lead to significant variations in the final product's consistency. These differences can cause problems for end consumers, such as difficulty in extruding the material or dripping, negatively impacting the consumer experience.

[0004] Currently, the main technologies used in the market are:

[0005] 1. For materials with a relatively viscous internal consistency, a larger orifice is usually used, for example, an orifice diameter of 5mm;

[0006] 2. For materials with a relatively thin internal consistency, a smaller orifice is usually used, for example, an orifice diameter of 2mm;

[0007] 3. For materials with relatively thin internal components, a method of assembling silicone plugs at the injection head opening is used in some cases;

[0008] Of the three solutions above, solutions one and two have fixed orifice sizes, but the viscosity of the material will vary during mass production. Because the orifice size of the hose nozzle is fixed, consumers will experience differences in the squeezing feel. When the material viscosity is high, the squeezing feel will be heavy, and there may even be cases where it cannot be squeezed out; when the material viscosity is low, the squeezing feel will be light, and there may even be cases where the tube body is not squeezed, and the material will drip automatically from the outlet due to gravity. Solution three, which involves assembling a silicone plug at the outlet, differs in that the silicone plug structure consists of an outlet component + silicone plug + silicone plug fixing component, which is a three-part structure. This structure is cumbersome to assemble, costly, and not suitable for very viscous materials. Our innovative structure uses a one-piece injection molding of the outlet and spring sheet, which can be achieved with only one part. It also has a wider range of applications, higher production efficiency, and lower cost. Utility Model Content

[0009] Therefore, the technical problem to be solved by this invention is to overcome the existing solution for handling thinner materials, which uses a silicone cutting structure and leverages the good resilience of silicone. However, this solution can only solve the problem of dripping materials of a fixed consistency, and it also suffers from complex structure, time-consuming assembly, and high cost.

[0010] To solve the above-mentioned technical problems, this utility model provides a spring-loaded structure for the nozzle of a flexible tube, comprising: a tube body, a cavity for storing material inside the tube body, a flexible tube nozzle on the tube body, and a discharge port on the flexible tube nozzle, the discharge port communicating with the cavity inside the tube body; wherein, a plurality of spring plates are provided on the inner wall of the discharge port, the tube body, the flexible tube nozzle, and the plurality of spring plates are integrally injection molded, the plurality of spring plates cover the discharge port, and gaps are provided between the plurality of spring plates for the material to pass through. The spring-loaded structure for the nozzle of this utility model is convenient to operate and can adapt to a wide range of material viscosity, especially when the viscosity of the same material can vary significantly due to slight differences in the process or different storage temperatures; compared to a fixed-size discharge port that can only adapt to a limited range of material viscosity, this structure can solve the problem of high-viscosity materials being difficult to extrude and the problem of low-viscosity materials dripping due to gravity when using a fixed-aperture flexible tube.

[0011] In one embodiment of the present invention, the plurality of spring sheets can be tilted away from the outside of the inner cavity of the tube to increase the gap width when the material is extruded.

[0012] In one embodiment of this utility model, the tube body, the hose nozzle, and the several spring pieces are made of PE or PP.

[0013] In one embodiment of this utility model, the cross-section of the discharge port is circular, and the plurality of spring sheets are arranged in a circular array with the center of the discharge port as the center.

[0014] In one embodiment of this utility model, the cross-section of the spring piece is fan-shaped, and the number of spring pieces is four.

[0015] In one embodiment of this utility model, the corner of the spring sheet near the center of the discharge port is provided with an arc-shaped groove.

[0016] In one embodiment of this utility model, the thickness of the spring sheet decreases from the outer circumference of the discharge port to the center.

[0017] In one embodiment of this utility model, when no force is applied to the tube body, several spring pieces are located on the same radial cross section of the discharge port.

[0018] In one embodiment of this utility model, the width of the gap ranges from 0.1 to 1 mm.

[0019] In one embodiment of this utility model, the gap and the arc-shaped groove on the spring sheet constitute the material discharge channel.

[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0021] The spring-loaded structure at the nozzle of this utility model solves the problem of inconsistent product consistency causing difficulties for consumers. Different pressures are applied to the bottle or tube to meet varying consumer needs. This pressure is transmitted to the nozzle, causing the spring to open to different states and sizes, dispensing the correct amount of product for the consumer. When the pressure is released, the spring automatically closes, reducing the orifice diameter and preventing dripping. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the spring-type structure at the nozzle of the flexible tube in a preferred embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the spring sheet in a preferred embodiment of the present invention when no force is applied;

[0025] Figure 3 This is a schematic diagram of the spring sheet under applied force in a preferred embodiment of the present invention;

[0026] Figure 4 This is a top view of the spring-loaded structure at the nozzle of the flexible tube in a preferred embodiment of the present invention;

[0027] Figure 5 This is a cross-sectional view of the spring sheet in a preferred embodiment of the present invention when no force is applied;

[0028] Figure 6 This is a cross-sectional view of the spring sheet under applied force in a preferred embodiment of the present invention.

[0029] Explanation of the markings on the attached drawings: tube body 1, hose nozzle 2, discharge port 3, spring 31, arc-shaped groove 311, gap 32. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0031] Reference Figure 1-6 As shown, the spring-loaded structure of the hose dispensing nozzle of this utility model includes: a tube body 1, with a cavity for storing material inside the tube body 1; a hose dispensing nozzle 2 on the tube body 1; and a discharge port 3 on the hose dispensing nozzle 2, which communicates with the cavity inside the tube body 1. The inner wall of the discharge port 3 is provided with several spring plates 31. The tube body 1, the hose dispensing nozzle 2, and the several spring plates 31 are integrally injection molded. The several spring plates 31 cover the discharge port 3, and gaps 32 are provided between the several spring plates 31 for the material to pass through. When the tube body 1 is squeezed, the several spring plates 31 automatically open under the pushing force of the material inside the tube body 1, squeezing out an appropriate dosage of material for the consumer. When the force is released, the tube body 1 automatically closes to prevent dripping.

[0032] It adopts an integrated injection molding process, and the connecting parts of the tube body 1, the soft tube injection head 2 and several spring pieces 31 are all realized on a single component. The advantage is that it uses a single material, has no assembly process, and is suitable for different types of cosmetic materials from thin to thick.

[0033] In the above structure, when no force is applied to the tube body 1, several spring pieces 31 are located on the same radial cross section of the discharge port 3. When the material is extruded, the several spring pieces 31 can tilt away from the outside of the inner cavity of the tube body 1 to increase the width of the gap 32.

[0034] The aforementioned tube body 1, flexible nozzle 2, and several spring plates 31 are made of relatively soft materials such as PE / PP, possessing a certain degree of elasticity and being resistant to breakage. They also exhibit good toughness and stable physical properties, making them less prone to reacting with the material. Furthermore, the thickness of the spring plates 31 decreases gradually from the outer circumference of the outlet 3 towards the center. This gradual thickness design of the spring plates 31 facilitates easy deformation of the central spring plate 31 under compression.

[0035] In the above structure, the discharge port 3 has a circular cross-section, and the plurality of spring pieces 31 are arranged in a circular array with the center of the discharge port 3 as the center. The cross-section of each spring piece 31 is fan-shaped, and there are four spring pieces 31. The corner of each spring piece 31 near the center of the discharge port 3 is provided with an arc-shaped groove 311. The gap 32 and the arc-shaped groove 311 on the spring piece 31 constitute the discharge channel of the material. The arc-shaped grooves 311 of the four spring pieces 31 together form a through hole with a circular cross-section and a diameter ranging from 0.1 to 3 mm.

[0036] Preferably, the width of the gap 32 is in the range of 0.1-1mm.

[0037] The specific steps for using the spring-loaded structure at the nozzle of this utility model are as follows:

[0038] 1. Open the cosmetic flower box packaging and remove the cosmetic tube container;

[0039] 2. Hold the tube or bottle in one hand and keep it still, while using the other hand to open the cap;

[0040] 3. Tear off the aluminum foil seal from the tear-off point;

[0041] 4. Squeeze the bottle or tube firmly, and the spring at the mouth will automatically open to allow the desired material to be extruded from the dispensing nozzle; when you release your hand, the spring at the dispensing nozzle will automatically close to prevent dripping.

[0042] 5. After use, tighten the cap until it is fully closed.

[0043] When using the product, consumers squeeze the container or tube body by hand. The spring at the outlet automatically opens to different states and sizes depending on the pressure applied by the consumer, extruding the appropriate amount of material for the consumer. After extrusion, the spring automatically closes due to the elasticity of the plastic, preventing thinner material from dripping out under its own weight. At the same time, thicker material can also be smoothly extruded due to the opening of the spring.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A structure of a spring piece of a hose adapter, characterized by comprising: include: The tube body has a cavity for storing material inside, and a flexible injection head is provided on the tube body. The flexible injection head has a discharge port, which is connected to the cavity inside the tube body. The inner wall of the discharge port is provided with several spring pieces. The tube body, the hose injection head and the several spring pieces are integrally injection molded. The several spring pieces cover the discharge port, and there are gaps between the several spring pieces for the material to pass through.

2. The poppet of a hose fitting according to claim 1, wherein: The several spring sheets can tilt outwards away from the inner cavity of the tube to increase the gap width when the material is extruded.

3. The grommet construction of a hose end as defined in claim 1 wherein: The tube body, hose nozzle, and several spring clips are made of PE or PP.

4. The grommet construction of a hose end as defined in claim 1 wherein: The cross-section of the discharge port is circular, and the plurality of spring pieces are arranged in a circular array with the center of the discharge port as the center.

5. The poppet of a hose fitting according to claim 4, wherein: The cross-section of the spring is fan-shaped, and the number of springs is four.

6. The poppet of a hose fitting according to claim 5, wherein: The corner of the spring sheet near the center of the discharge port is provided with an arc-shaped groove.

7. The grommet construction of a hose end as defined in claim 1 wherein: The thickness of the spring sheet decreases from the outer circumference of the discharge port to the center.

8. The spring tab structure of a hose adapter port according to claim 4, characterized by: When no force is applied, several spring pieces are located on the same radial section of the discharge port.

9. The grommet construction of a hose end as defined in claim 1 wherein: The width of the gap ranges from 0.1 to 1 mm.

10. The grommet construction of a hose end as defined in claim 6 wherein: The gap and the arc-shaped groove on the spring sheet constitute the material discharge channel.

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