PE airtight zipper

Abstract

The utility model relates to the technical field of airtight zippers, and particularly discloses a PE airtight zipper which comprises a PE female belt and a PE male belt, a plurality of upper zinc alloy zipper teeth are movably connected to the outer surface of the PE female belt at equal intervals in a penetrating mode, and a plurality of lower zinc alloy zipper teeth are movably connected to the outer surface of the PE male belt at equal intervals in a penetrating mode. Teeth are arranged in the middles of the inner sides of the upper zinc alloy chain teeth and the middles of the inner sides of the lower zinc alloy chain teeth, clamping grooves are formed in one sides of the bottom ends of the upper zinc alloy chain teeth, sealing protrusions are arranged on one sides of the top ends of the PE male belts, and penetrating grooves are formed in one sides of the bottom ends of the PE female belts. A plurality of first through holes are formed in one side of the top end of the PE female belt at equal intervals, and a plurality of second through holes are formed in one side of the bottom end of the PE male belt at equal intervals; by arranging the clamping groove and the sealing protrusion, water and gas are effectively sealed, so that the waterproof function and the gas-proof function are achieved, and the waterproof and gas-proof connector can be repeatedly used in the using process.

Description

Technical Field

[0001] The utility model belongs to the technical field of airtight zippers, and in particular relates to a PE airtight zipper. Background Art

[0002] PE airtight zipper, as the name suggests, is a zipper made of PE material with excellent airtight performance. It can not only effectively prevent gas penetration, but also be waterproof and dustproof to a certain extent.

[0003] Most of the airtight zippers on the market currently use elastomers as the main airtight material, such as rubber, silicone, polyurethane and PVC. These materials are widely used in the manufacture of airtight zippers due to their excellent elasticity and sealing properties. However, in the field of sealed packaging, polyethylene (PE) is the main packaging material. Due to the characteristics of PE material such as low cost, easy processing, good chemical stability and excellent mechanical properties, it is widely used in various packaging products.

[0004] However, due to the significant differences in chemical composition and physical properties between the main materials (such as rubber, silicone, polyurethane, PVC, etc.) and PE, it is difficult to achieve effective welding or strong adhesive connection between the two materials. This technical difficulty has greatly limited the widespread application of airtight zippers in PE packaging materials. In current practice, in order to meet the airtightness requirements of PE packaging, usually only simpler PE sealing strips can be used for sealing, or the airtight zippers are designed as disposable products, which increases the cost and complexity of packaging, and also affects the sustainability and environmental protection of the packaging. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a PE airtight zipper that effectively seals water and gas using a card slot and a sealing protrusion, thereby solving the problem of applying the airtight zipper to PE packaging materials.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A PE airtight zipper, comprising:

[0008] PE female tape and PE male tape;

[0009] The outer surface of the PE mother belt is equidistantly and movably connected with a plurality of upper zinc alloy chain teeth, and the outer surface of the PE male belt is equidistantly and movably connected with a plurality of lower zinc alloy chain teeth. The inner middle part of the upper zinc alloy chain teeth and the inner middle part of the lower zinc alloy chain teeth are both provided with teeth, and a slot is provided on one side of the bottom end of each of the upper zinc alloy chain teeth;

[0010] A sealing protrusion is provided on the top side of the PE male tape, a through groove is provided on the bottom side of the PE mother tape, a plurality of first through holes are provided at equal distances on the top side of the PE mother tape, and a plurality of second through holes are provided at equal distances on the bottom side of the PE male tape.

[0011] Preferably, the upper teeth and the lower teeth are movably connected to the first through-hole and the second through-hole respectively, and the upper teeth and the lower teeth are meshed and connected together.

[0012] Preferably, the sealing protrusion passes through the through slot and is clamped in the clamping slot.

[0013] Preferably, the upper zinc alloy chain teeth and the lower zinc alloy chain teeth are both configured as concave structures.

[0014] Preferably, the bottom end of the PE female tape is in close contact with the top end of the PE male tape.

[0015] Preferably, the PE mother tape and the PE male tape are both arranged in an X-shaped structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) By setting up the PE mother belt, PE male belt, card slot and sealing protrusion, in the assembly process, the upper zinc alloy chain teeth are first installed on the PE mother belt, and the lower zinc alloy chain teeth are correspondingly assembled on the PE male belt. When the two assembled belts are engaged with each other through the teeth on them, the sealing protrusion on the PE male belt will be tightly squeezed. This squeezing process not only ensures that the sealing protrusion can pass through the groove smoothly, but also enables it to be stably inserted into the card slot, utilizing the interaction force between the structures to effectively seal water and gas, thereby achieving the dual functions of waterproof and gas proof, and can be reused when in use.

[0018] (2) By setting up PE mother tape, PE male tape, upper zinc alloy chain teeth, lower zinc alloy chain teeth and teeth, the upper zinc alloy chain teeth and lower zinc alloy chain teeth are assembled on the PE mother tape and PE male tape. When the teeth on these chain teeth are precisely engaged with each other, the zipper can smoothly realize the function of opening and closing. Special sealing rings are set at both ends of the zipper. In addition, with the use of a specially designed slider, the entire zipper can show an excellent effect of being watertight when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the plan views of the present utility model;

[0020] Figure 2 This is the second plan view of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the PE mother belt and the upper zinc alloy chain teeth of the utility model;

[0023] Figure 5 This is a schematic diagram of the connection between the PE male belt and the lower zinc alloy chain teeth of the utility model;

[0024] Figure 6 This is a three-dimensional diagram of the zinc alloy chain teeth of the utility model;

[0025] In the figure: 1. PE female belt; 2. PE male belt; 3. Upper zinc alloy chain tooth; 4. Slot; 5. Sealing protrusion; 6. Lower zinc alloy chain tooth; 7. Through slot; 8. First through hole; 9. Second through hole; 10. Tooth. DETAILED DESCRIPTION

[0026] The following will be combined with the 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.

[0027] Example 1:

[0028] See also Figure 1 - Figure 6 As shown, a PE airtight zipper comprises:

[0029] PE mother tape 1 and PE male tape 2;

[0030] The outer surface of the PE mother belt 1 is equidistantly and movably connected with a plurality of upper zinc alloy sprockets 3, and the outer surface of the PE male belt 2 is equidistantly and movably connected with a plurality of lower zinc alloy sprockets 6. The inner middle part of the upper zinc alloy sprocket 3 and the inner middle part of the lower zinc alloy sprocket 6 are both provided with teeth 10, and a slot 4 is provided on one side of the bottom end of the upper zinc alloy sprocket 3;

[0031] A sealing protrusion 5 is provided on the top side of the PE male tape 2, a through groove 7 is provided on the bottom side of the PE female tape 1, a plurality of first through holes 8 are provided at equal distances on the top side of the PE female tape 1, and a plurality of second through holes 9 are provided at equal distances on the bottom side of the PE male tape 2.

[0032] As can be seen from the above, in the assembly process, the upper zinc alloy chain teeth 3 are first installed on the PE mother belt 1, and the lower zinc alloy chain teeth 6 are correspondingly assembled on the PE male belt 2. When the two assembled belts are engaged with each other through the teeth 10 thereon, the sealing protrusion 5 on the PE male belt 2 will be tightly squeezed. This squeezing process not only ensures that the sealing protrusion 5 can smoothly pass through the groove 7, but also enables it to be firmly inserted into the interior of the card slot 4, utilizing the interaction force between the structures to effectively seal water and gas, thereby achieving the dual functions of waterproof and gas proof.

[0033] Preferably, the sealing protrusion 5 passes through the through groove 7 and is clamped in the clamping groove 4;

[0034] The bottom end of the PE female tape 1 is tightly attached to the top end of the PE male tape 2;

[0035] The PE mother tape 1 and the PE male tape 2 are both arranged in an X-shaped structure.

[0036] As can be seen from the above, the sealing protrusion 5 passes through the through groove 7 and is clamped in the clamping groove 4, thereby achieving the function of waterproof and gas proof. The PE mother belt 1 and the PE male belt 2 are both set to a "X"-shaped structure, which facilitates the assembly of the teeth 10, the lower zinc alloy chain teeth 6 and the upper zinc alloy chain teeth 3.

[0037] Example 2:

[0038] refer to Figure 4 - Figure 6 As shown, the upper teeth 10 and the lower teeth 10 are movably connected to the first through-hole 8 and the second through-hole 9 respectively, and the upper teeth 10 and the lower teeth 10 are meshed and connected together.

[0039] It can be seen from the above that during assembly, the tooth 10 is passed through the first perforation 8, and the upper zinc alloy chain tooth 3 fixedly connected to the tooth 10 is inserted into the outer surface of the PE mother belt 1, so that the PE mother belt 1 and the upper zinc alloy chain tooth 3 are assembled together, and the PE male belt 2 and the lower zinc alloy chain tooth 6 are assembled together in the above manner. The two assembled chains are pulled together by a special pull head. When closed, the upper teeth 10 and the lower teeth 10 are meshed and connected.

[0040] Preferably, the upper zinc alloy chain teeth 3 and the lower zinc alloy chain teeth 6 are both configured as concave structures.

[0041] From the above, it can be known that it is better to be assembled with the PE mother tape 1 and the PE male tape 2.

[0042] Furthermore, this design application is applied to prevent gas penetration and to a certain extent waterproof and dustproof. First, PE plastic particle material is fed into an extruder. After being melted at high temperature, it is precisely extruded through a specific mold to produce a concave PE mother belt 1 and a PE male belt 2, respectively. At the same time, in another process, the zinc alloy material is die-casted into inner and outer conjoined teeth of a mountain-shaped structure through a precision mold. These teeth include upper zinc alloy chain teeth 3, lower zinc alloy chain teeth 6, and teeth 10 that they both have. After die-casting, the upper zinc alloy chain teeth 3 and the lower zinc alloy chain teeth 6 will be polished and electroplated with materials that meet different corrosion resistance requirements in preparation for subsequent assembly.

[0043] Next, first and second holes 8 and 9 are precisely punched into the pre-formed PE mother and male tapes 1 and 2 according to the preset assembly positions. The design of these holes is to allow the upper and lower zinc alloy sprockets 3 and 6 to be securely embedded and assembled together. The teeth 10 are cleverly assembled into the first and second holes 8 and 9, and their secureness is ensured through a clamping process.

[0044] When two chains with upper zinc alloy chain teeth 3 and lower zinc alloy chain teeth 6 assembled respectively are pulled together through a special slider, the sealing protrusion 5 on the upper edge of the PE male belt 2 will be fully squeezed, and then pass through the groove 7 and insert into the card slot 4, which not only enhances the sealing performance of the zipper, but also gives it excellent waterproof and gas-proof functions.

[0045] Finally, according to the size requirements of the sealed bag, the zipper is cut to the corresponding length and equipped with a special slider. The head and tail parts of the zipper are injection-molded with a seal using an injection molding machine, thus obtaining a zipper with high strength, high sealing performance, and labor-saving zipper opening and closing. In addition, in order to meet the welding requirements of sealed bags of different materials, the zipper can also be further processed according to customer needs to ensure that it can perfectly adapt to sealed bags of various materials.

[0046] All standard parts used in this utility model can be purchased commercially, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. In addition, the circuit connections adopt conventional connection methods in the existing technology and will not be described in detail here. Any matters not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0047] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0048] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0049] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PE airtight zipper, characterized in that: include: PE female tape (1) and PE male tape (2); The outer surface of the PE mother belt (1) is equidistantly and movably connected with a plurality of upper zinc alloy chain teeth (3), and the outer surface of the PE male belt (2) is equidistantly and movably connected with a plurality of lower zinc alloy chain teeth (6). The inner middle portion of the upper zinc alloy chain teeth (3) and the inner middle portion of the lower zinc alloy chain teeth (6) are both provided with teeth (10), and a slot (4) is provided on one side of the bottom end of each of the upper zinc alloy chain teeth (3). A sealing protrusion (5) is provided on the top side of the PE male tape (2), a through groove (7) is provided on the bottom side of the PE mother tape (1), a plurality of first through holes (8) are provided at equal distances on the top side of the PE mother tape (1), and a plurality of second through holes (9) are provided at equal distances on the bottom side of the PE male tape (2).

2. A PE airtight zipper according to claim 1, characterized in that: The upper teeth (10) and the lower teeth (10) are respectively movably connected to the first through hole (8) and the second through hole (9), and the upper teeth (10) and the lower teeth (10) are meshed and connected together.

3. The PE airtight zipper according to claim 1, characterized in that: The sealing protrusion (5) passes through the through groove (7) and is clamped in the clamping groove (4).

4. The PE airtight zipper according to claim 1, characterized in that: The upper zinc alloy chain teeth (3) and the lower zinc alloy chain teeth (6) are both configured as concave structures.

5. The PE airtight zipper according to claim 1, characterized in that: The bottom end of the PE mother tape (1) is tightly attached to the top end of the PE male tape (2).

6. The PE airtight zipper according to claim 1, characterized in that: The PE mother tape (1) and the PE male tape (2) are both arranged in an "X"-shaped structure.

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