Suction nozzle for filling bag

Abstract

The utility model belongs to the technical field of suction nozzles, and particularly relates to a suction nozzle for a filling bag, which comprises a suction nozzle body, the suction nozzle body comprises an inner section arranged in a bag body and an outer section extending out of the bag body, a through hole is arranged in the middle of the suction nozzle body, a hollow baffle ring is arranged in the through hole where the outer section is located, and the outer section is arranged in the hollow baffle ring. The outer ring of the baffle ring is attached to the hole wall of the through hole, and the baffle ring is made of a gas blocking material. Air can be prevented from entering the oven, so that food is effectively prevented from being oxidized and deteriorated.

Description

Technical field:

[0001] The utility model belongs to the technical field of suction nozzles, in particular to a suction nozzle for filling bags. Background technology:

[0002] Filling bag, also known as spout bag, is a new type of beverage and jelly packaging bag developed on the basis of stand-up bag. The structure of spout bag is mainly divided into two parts: spout and bag body.

[0003] The bag body is usually made of materials with good barrier properties, but in order to save costs, the material used for the nozzle has poor barrier properties. During storage, air can easily enter through the nozzle, and the oxygen in the air can easily react with the food in the filling bag to produce an oxidation reaction, thereby causing the food to deteriorate. Summary of the invention:

[0004] The utility model aims to provide a suction nozzle for a filling bag, which can block air from entering, thereby effectively preventing food from being oxidized and deteriorating.

[0005] The utility model is achieved in that:

[0006] A suction nozzle for a filling bag includes a suction nozzle body, wherein the suction nozzle body includes an inner section arranged in the bag body and an outer section extending out of the bag body. A through hole is provided in the middle of the suction nozzle body, and a hollow retaining ring is provided in the through hole where the outer section is located. The outer ring of the retaining ring is arranged to fit the hole wall of the through hole, and the retaining ring is made of a gas-blocking material.

[0007] In the above-mentioned filling bag suction nozzle, the lower end of the retaining ring extends to the through hole where the inner section is located, and the length of the retaining ring in the inner section is greater than 1 / 3 of the height of the inner section and less than 2 / 3 of the height of the inner section.

[0008] In the above-mentioned filling bag suction nozzle, the outer section includes a cylindrical portion, a tightening portion and a connecting portion arranged in sequence from top to bottom, and the upper end surface of the retaining ring is higher than the tightening portion but lower than the upper end surface of the cylindrical portion.

[0009] In the above-mentioned suction nozzle for filling bags, the hole wall of the through hole is concave to form a mounting groove, the retaining ring is arranged in the mounting groove, the outer ring of the retaining ring is close to the side wall of the mounting groove, and the inner ring of the retaining ring is flush with the hole wall of the through hole.

[0010] In the above-mentioned suction nozzle for a filling bag, the retaining ring may be fixed in such a manner that: the retaining ring is made of high-barrier plastic and is injection-molded in the through hole.

[0011] In the above-mentioned nozzle for filling bags, the high barrier plastic is EVOH (ethylene-vinyl alcohol copolymer), PVDC (polyvinylidene chloride) or PEN (polyethylene naphthalate).

[0012] In the above-mentioned suction nozzle for filling bags, the retaining ring may also be fixed in the following manner: the retaining ring is fixed in the through hole by a tight-fitting clamp.

[0013] In the above-mentioned suction nozzle for a filling bag, the retaining ring may also be fixed in the following manner: the retaining ring is bonded in the through hole by glue.

[0014] In the above-mentioned suction nozzle for filling bags, the thickness of the retaining ring is 0.1 mm-0.2 mm.

[0015] The outstanding advantages of the utility model compared with the prior art are:

[0016] 1. The utility model sets a baffle ring in the through hole where the outer section of the nozzle body is located. The baffle ring is made of air-blocking material and can block air from entering, thereby effectively preventing food from oxidizing and deteriorating.

[0017] 2. The retaining ring of the utility model is made of high-barrier plastic and is injection-molded in the through hole, which is easy to process, does not require assembly, and has a firm and reliable connection. Description of the drawings:

[0018] Figure 1 It is a three-dimensional diagram of the nozzle body of the present utility model;

[0019] Figure 2 It is a three-dimensional diagram of the retaining ring of the present utility model;

[0020] Figure 3 This is a cross-sectional view of the nozzle body and the retaining ring of the utility model;

[0021] Figure 4 It is a cross-sectional view of the suction nozzle body of the present invention.

[0022] Figure numerals: 1. inner section; 2. through hole; 3. retaining ring; 4. cylindrical portion; 5. tightening portion; 6. connecting portion; 7. mounting groove. Specific implementation method:

[0023] The present invention is further described below with reference to specific embodiments. Figure 1 —4:

[0024] A suction nozzle for a filling bag includes a suction nozzle body, wherein the suction nozzle body includes an inner section 1 arranged in the bag body and an outer section extending out of the bag body. A through hole 2 is provided in the middle of the suction nozzle body, and a hollow retaining ring 3 is provided in the through hole 2 where the outer section is located. The outer circle of the retaining ring 3 is arranged to fit the hole wall of the through hole 2, and the retaining ring 3 is made of a gas-barrier material.

[0025] like Figure 1-4As shown, the present invention provides a retaining ring 3 within the through hole 2 where the outer section of the nozzle body is located. The retaining ring 3 is made of an air-blocking material and can block air from entering, thereby effectively preventing food from oxidizing and spoiling. Furthermore, the retaining ring 3 is made of less material and is low in cost.

[0026] In order to better block the air from entering and save materials as much as possible, Figure 3 As shown, the lower end of the retaining ring 3 extends into the through hole 2 where the inner section 1 is located, and the length of the retaining ring 3 in the inner section 1 is greater than 1 / 3 of the height of the inner section 1 and less than 2 / 3 of the height of the inner section 1.

[0027] In order to better prevent air from entering, Figure 1 、 3 As shown, the outer section includes a cylindrical portion 4, a tightening portion 5 and a connecting portion 6 arranged in sequence from top to bottom, and the upper end surface of the retaining ring 3 is higher than the tightening portion 5, but lower than the upper end surface of the cylindrical portion 4.

[0028] The outer circumference of the cylindrical portion 4 is smooth for biting, the tightening portion 5 is used for threaded connection with the screw cap, the connecting portion 6 is used to connect the tightening portion 5 and the inner section 1, and the inner section 1 is used to fit and press-fit with the opening end of the bag body.

[0029] In order to ensure that the nozzle body has a larger liquid outlet channel as much as possible, Figure 1-4 As shown, the hole wall of the through hole 2 is concave to form a mounting groove 7, and the retaining ring 3 is arranged in the mounting groove 7. The outer ring of the retaining ring 3 is close to the side wall of the mounting groove 7, and the inner ring of the retaining ring 3 is flush with the hole wall of the through hole 2.

[0030] Fixing method of the retaining ring 3: The retaining ring 3 is made of high-barrier plastic and is injection-molded into the through hole 2, which is easy to process, does not require assembly, and has a firm and reliable connection.

[0031] Preferably, the high-barrier plastic is EVOH (ethylene-vinyl alcohol copolymer), PVDC (polyvinylidene chloride), or PEN (polyethylene naphthalate). In this embodiment, the high-barrier plastic is EVOH (ethylene-vinyl alcohol copolymer). EVOH (ethylene-vinyl alcohol copolymer) is a high-barrier plastic material that effectively blocks the permeation of oxygen and carbon dioxide gases, extending the shelf life and freshness of food.

[0032] In order to save materials as much as possible while ensuring the barrier effect, the thickness of the retaining ring 3 is 0.1mm-0.2mm. In this embodiment, the thickness of the retaining ring 3 is 0.15mm.

[0033] The above embodiment is only one of the preferred embodiments of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A suction nozzle for a filling bag, comprising a suction nozzle body, wherein the suction nozzle body comprises an inner section (1) disposed inside the bag body and an outer section extending outside the bag body, wherein a through hole (2) is provided in the middle of the suction nozzle body, and wherein: A hollow retaining ring (3) is provided in the through hole (2) where the outer section is located. The outer ring of the retaining ring (3) is arranged in contact with the hole wall of the through hole (2). The retaining ring (3) is made of a gas-blocking material.

2. The filling bag nozzle according to claim 1, characterized in that: The lower end of the retaining ring (3) extends into the through hole (2) where the inner section (1) is located, and the length of the retaining ring (3) in the inner section (1) is greater than 1 / 3 of the height of the inner section (1) and less than 2 / 3 of the height of the inner section (1).

3. The filling bag nozzle according to claim 1, characterized in that: The outer section comprises a cylindrical portion (4), a screwing portion (5) and a connecting portion (6) arranged in sequence from top to bottom, and the upper end surface of the retaining ring (3) is higher than the screwing portion (5) but lower than the upper end surface of the cylindrical portion (4).

4. The filling bag nozzle according to claim 1, characterized in that: The hole wall of the through hole (2) is concave to form a mounting groove (7), and the retaining ring (3) is arranged in the mounting groove (7). The outer ring of the retaining ring (3) is in close contact with the side wall of the mounting groove (7), and the inner ring of the retaining ring (3) is flush with the hole wall of the through hole (2).

5. The filling bag nozzle according to claim 1, characterized in that: The retaining ring (3) is made of high-barrier plastic and is injection-molded into the through hole (2).

6. The filling bag nozzle according to claim 1, characterized in that: The thickness of the retaining ring (3) is 0.1 mm to 0.2 mm.

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