Multi-layer extrusion blowing liquid storage bottle capable of efficiently isolating oxygen

Abstract

The utility model relates to the technical field of liquid storage containers, in particular to a multi-layer extrusion blowing liquid storage bottle capable of efficiently isolating oxygen, which comprises a liquid storage bottle main body, the liquid storage bottle main body comprises a multi-layer bottle body, a bottle opening is fixedly arranged at the upper end of the multi-layer bottle body, and a sealing cover is sleeved at the outer end of the bottle opening through threads. A double-layer sealing ring is fixedly embedded in the periphery of the top end of the sealing cover; a pressure reducing valve is fixedly arranged in the middle of the top end of the sealing cover; the pressure reducing valve comprises a valve body communicated with the interior of the sealing cover, a groove is formed in the middle of the outer end of the valve body, pressure reducing holes penetrating through the valve body are formed in the two sides of the groove, and the outer end of the groove is sleeved with a pressure reducing sealing ring. The double-layer sealing ring is arranged, loosening and falling cannot occur after long-term use, the sealing reliability is high, the pressure reducing valve is arranged, when the pressure in the bottle rises, gas can be automatically exhausted, and liquid leakage caused by the fact that the pressure in the bottle is too large is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid storage containers, in particular to a multi-layer extrusion-blown liquid storage bottle capable of efficiently isolating oxygen. Background Art

[0002] Many industries, such as food, medicine, and cosmetics, require the use of liquid storage bottles to store various liquids. However, existing liquid storage bottles rely primarily on a sealing cap and a sealing gasket therein to achieve sealing. The sealing gasket and the sealing cap are often connected by a snap-fit ​​connection, which can easily become loose or even fall off after long-term use, resulting in a decrease in sealing performance. This poor oxygen isolation effect can easily lead to oxidation and deterioration of the liquid, affecting product quality and shelf life. This makes it difficult to meet the high requirements for oxygen isolation performance. Furthermore, when the air pressure inside the bottle increases, it is difficult for conventional liquid storage bottles to discharge the gas in a timely manner. Excessive pressure inside the bottle can easily lead to liquid leakage. Therefore, those skilled in the art have provided a multi-layer extrusion blown liquid storage bottle that effectively isolates oxygen to address the problems raised in the above-mentioned background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-layer extrusion-blown liquid storage bottle that is highly effective in isolating oxygen, so as to solve the above technical problems.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A multi-layer extrusion blown liquid storage bottle with high oxygen isolation efficiency comprises a liquid storage bottle body, the liquid storage bottle body comprising a multi-layer bottle body, a bottle mouth fixedly provided at the upper end of the multi-layer bottle body, a sealing cap screwed onto the outer end of the bottle mouth, a double-layer sealing ring fixedly embedded at the outer periphery of the top end of the sealing cap, and a pressure reducing valve fixedly provided at the middle portion of the top end of the sealing cap;

[0006] The pressure reducing valve includes a valve body connected to the interior of the sealing cover, a groove is provided at the middle of the outer end of the valve body, pressure reducing holes penetrating the valve body are provided on both sides of the groove, and a pressure reducing sealing ring is provided at the outer end of the groove.

[0007] Furthermore, the double-layer sealing ring includes two ring bodies arranged one above the other, and a plurality of connecting blocks are fixedly connected between the two ring bodies at even intervals;

[0008] Furthermore, the upper end surface of the double-layer sealing ring is provided with a plurality of openings at even intervals, the two ring bodies are respectively arranged on the inner and outer sides of the sealing cover, and the connecting blocks are snap-fitted with the openings in a one-to-one correspondence;

[0009] Furthermore, a valve hole is fixedly provided on the lower inner side of the valve body, a sealing end head is abutted against the inner side of the valve hole, and a spring is abutted between the upper end of the sealing end head and the valve body;

[0010] Furthermore, the multi-layer bottle body comprises an outer layer and an inner layer, an intermediate layer is fixedly arranged between the outer layer and the inner layer, and the intermediate layer is connected to the outer layer and the inner layer by bonding;

[0011] Furthermore, the middle portion of the bottom surface of the multi-layer bottle body is concave;

[0012] Furthermore, a limiting ring is fixedly connected to the lower side of the outer end of the bottle mouth;

[0013] Furthermore, the outer side of the sealing cover is fixedly provided with anti-slip grooves;

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model proposes a multi-layer extrusion blow liquid storage bottle with high efficiency and oxygen isolation, which is provided with a double-layer sealing ring. The upper and lower ring bodies of the double-layer sealing ring are covered on the upper and lower end surfaces of the sealing cover to form a clamp-type structure. The stability after connection is strong and the reliability is high. It will not loosen or fall off after long-term use. The sealing reliability is high and can effectively prevent oxygen from entering.

[0016] 2. The utility model proposes a multi-layer extruded liquid storage bottle with high efficiency and oxygen isolation. It is provided with a pressure reducing valve. When the pressure in the bottle increases, the gas can be automatically discharged to prevent the liquid from leaking due to excessive pressure in the bottle. At the same time, the pressure reducing valve is sealed in a double layer in a one-way manner to ensure that external oxygen does not enter the bottle, and the reliability is high.

[0017] 3. The utility model proposes a multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation, which adopts a multi-layer bottle body structure design, has good anti-aging and anti-oxygen penetration capabilities, and also enhances the structural strength of the bottle body and has high compressive strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is the overall structure diagram of a multi-layer extrusion-blown liquid storage bottle with high efficiency and oxygen isolation proposed by the utility model;

[0020] Figure 2 This is an exploded view of a multi-layer extrusion-blown liquid storage bottle with high efficiency and oxygen isolation proposed by the utility model;

[0021] Figure 3 This is a structural diagram of a double-layer sealing ring in a multi-layer extrusion-blown liquid storage bottle that is highly effective in isolating oxygen.

[0022] Figure 4 This is a cross-sectional view of a multi-layer extrusion-blown liquid storage bottle that is highly efficient in isolating oxygen, as proposed by the utility model;

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 yes Figure 4 Enlarged view of point B in the middle.

[0025] Reference numerals:

[0026] 1. Liquid storage bottle body; 11. Multi-layer bottle body; 111. Outer layer; 112. Middle layer; 113. Inner layer; 12. Bottle mouth; 13. Limiting ring; 2. Sealing cap; 3. Double-layer sealing ring; 31. Ring body; 32. Connecting block; 4. Pressure reducing valve; 41. Valve body; 42. Groove; 43. Pressure reducing hole; 44. Pressure reducing sealing ring; 45. Valve hole; 46. Sealing end; 47. Spring; 5. Through port. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] Please see the attached Figures 1 to 5 As shown, in the embodiment of the utility model, a multi-layer extruded blown liquid storage bottle with high efficiency and oxygen isolation comprises a liquid storage bottle main body 1, the liquid storage bottle main body 1 comprises a multi-layer bottle body 11, the upper end of the multi-layer bottle body 11 is fixedly provided with a bottle mouth 12, the outer end of the bottle mouth 12 is connected with a sealing cover 2 through a threaded sleeve, a double-layer sealing ring 3 is fixedly embedded at the outer periphery of the top end of the sealing cover 2, and a pressure reducing valve 4 is fixedly provided at the middle part of the top end of the sealing cover 2; the double-layer sealing ring 3 has a strong connection stability with the sealing cover 2 after installation, and will not loosen or fall off after long-term use, has high sealing reliability, and can effectively prevent oxygen from entering, and the pressure reducing valve 4 can automatically discharge gas when the pressure in the bottle increases to prevent liquid leakage caused by excessive pressure in the bottle, and the pressure reducing valve 4 is a one-way exhaust valve that only allows gas in the bottle to be discharged, and has strong sealing performance.

[0030] The closure 44 is provided with a spring 47 which closes the sealing ring 46 and closes the valve body 41 so that the closure 44 is closed.

[0031] The double-layer sealing ring 3 includes two ring bodies 31 arranged up and down, and a plurality of connecting blocks 32 are fixedly connected with each other at even intervals between the two ring bodies 31; a plurality of through openings 5 ​​are opened at even intervals on the upper end surface of the double-layer sealing ring 3, and the two ring bodies 31 are respectively arranged on the inner and outer sides of the sealing cover 2, and the connecting blocks 32 are clamped with the through openings 5 ​​one by one; when the double-layer sealing ring 3 is installed, the plurality of connecting blocks 32 are clamped with the through openings 5 ​​one by one, and the upper and lower ring bodies 31 are covered on the upper and lower end surfaces of the sealing cover 2, forming a clamp-type structure, which has strong stability after connection, is difficult to fall off, and has high reliability. Among them, the double-layer sealing ring 3 can be manufactured by a two-color injection molding process, and the inner side contacting the bottle mouth 12 is made of food-grade soft rubber material to form a sealing gasket to ensure the sealing between the sealing cover 2 and the bottle mouth 12, while the outer side is made of the same high barrier material as the outer layer 111 of the bottle body, and the color and texture match the bottle body to ensure visual coordination.

[0032] In this embodiment, the middle portion of the bottom surface of the multi-layer bottle body 11 is concave. When the bottle body is subjected to external pressure, the concave bottom surface can better disperse the pressure and improve the pressure resistance effect.

[0033] A limiting ring 13 is fixedly connected to the lower side of the outer end of the bottle mouth 12 , and the limiting ring 13 is provided to limit the installation position of the sealing cover 2 .

[0034] The outer side of the sealing cover 2 is fixedly provided with anti-slip grooves, which can facilitate opening and tightening of the sealing cover 2, thereby improving the convenience of use.

[0035] Example 2

[0036] See also Figure 4 and Figure 6As shown, on the basis of the first embodiment, the multilayer bottle body 11 comprises an outer layer 111 and an inner layer 113, and an intermediate layer 112 is fixedly arranged between the outer layer 111 and the inner layer 113, and the intermediate layer 112 is connected with the outer layer 111 and the inner layer 113 through bonding. Through the multilayer bottle body structure design, good anti-aging and anti-oxygen permeability can be achieved, and the structural strength of the bottle body can also be effectively enhanced, thereby prolonging the service life.

[0037] The inner layer 113 is a liquid storage layer directly contacting the liquid, is made of plastic material with good corrosion resistance and chemical stability, such as polytetrafluoroethylene, and the surface thereof can be subjected to smooth treatment to prevent liquid residue and adsorption.

[0038] The outer layer 111 is an oxygen barrier layer formed through a multilayer extrusion blowing process, the material of the outer layer 111 is selected from plastic with high barrier property, such as ethylene-vinyl alcohol copolymer (EVOH), the color of the outer layer 111 can be customized according to different product requirements, and an antioxidant and an ultraviolet absorber can be added in the extrusion blowing raw material during production to enhance the anti-aging and anti-oxygen permeability of the outer layer 111.

[0039] The intermediate layer 112 is a bonding layer, which prevents separation of the inner and outer layers and enhances the overall structural performance of the bottle.

[0040] The above describes one embodiment of the utility model in detail, but the content described can only be the preferred embodiment of the utility model and cannot be considered as limiting the implementation range of the utility model. Any equivalent change and improvement within the application range of the utility model should still belong to the patent coverage range of the utility model.

Claims

1. A multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation, comprising a liquid storage bottle body (1), characterized in that: The liquid storage bottle body (1) comprises a multi-layer bottle body (11), a bottle mouth (12) is fixedly provided at the upper end of the multi-layer bottle body (11), a sealing cover (2) is screwed onto the outer end of the bottle mouth (12), a double-layer sealing ring (3) is fixedly embedded at the outer periphery of the top end of the sealing cover (2), and a pressure reducing valve (4) is fixedly provided at the middle part of the top end of the sealing cover (2); The pressure reducing valve (4) comprises a valve body (41) in communication with the interior of the sealing cover (2), a groove (42) is provided at the middle of the outer end of the valve body (41), pressure reducing holes (43) penetrating the valve body (41) are provided on both sides of the groove (42), and a pressure reducing sealing ring (44) is sleeved on the outer end of the groove (42).

2. The multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation according to claim 1, characterized in that: The double-layer sealing ring (3) comprises two ring bodies (31) arranged one above the other, and a plurality of connection blocks (32) are fixedly connected between the two ring bodies (31) at even intervals.

3. The multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation according to claim 2, characterized in that: The upper end surface of the double-layer sealing ring (3) is evenly spaced with a plurality of openings (5), the two ring bodies (31) are respectively arranged on the inner and outer sides of the sealing cover (2), and the connecting blocks (32) are connected to the openings (5) in a one-to-one corresponding manner.

4. The multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation according to claim 1, characterized in that: A valve hole (45) is fixedly provided on the lower inner side of the valve body (41), a sealing end head (46) is abutted against the inner side of the valve hole (45), and a spring (47) is abutted between the upper end of the sealing end head (46) and the valve body (41).

5. The multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation according to claim 1, characterized in that: The multi-layer bottle body (11) comprises an outer layer (111) and an inner layer (113), an intermediate layer (112) is fixedly arranged between the outer layer (111) and the inner layer (113), and the intermediate layer (112) is connected to the outer layer (111) and the inner layer (113) by bonding.

6. The multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation according to claim 1, characterized in that: The middle portion of the bottom surface of the multi-layer bottle body (11) is concave.

7. The multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation according to claim 1, characterized in that: The lower side of the outer end of the bottle mouth (12) is fixedly connected to a limiting ring (13).

8. The multi-layer extrusion blown liquid storage bottle with high efficiency and oxygen isolation according to claim 1, characterized in that: The outer side of the sealing cover (2) is fixedly provided with anti-slip grooves.

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