A waterproof and airtight zipper

Abstract

The present invention relates to the field of zipper products, and specifically to a waterproof and airtight zipper, comprising a left belt body, a right belt body, and zipper heads arranged on the left belt body and the right belt body, wherein a sealing base is arranged on one side adjacent to the left belt body and the right belt body, and two or more sealing components are evenly distributed on the sealing base along the thickness direction thereof, and each of the sealing components comprises a first sealing protrusion and a second sealing protrusion; when the zipper is chained, a first sealing groove for clamping the first sealing protrusion is formed between two adjacent second sealing protrusions, and a second sealing groove for clamping the second sealing protrusion is formed between two adjacent first sealing protrusions. The present invention is applied to waterproof and airtight zipper products, and provides a waterproof and airtight zipper structure with high structural strength and not prone to failure of cooperation between chain belts due to mutual sliding and misalignment of chain belts.

Description

Technical Field

[0001] The present invention relates to the field of zipper products, and particularly to a waterproof and airtight zipper. Background Art

[0002] In the prior art, as shown in CN 105495876 A, a waterproof and sealed open-end zipper, its preferred technology includes: a first tape and a second tape, and on each side where the tapes are relatively close to each other, there are respectively a first track portion and a second track portion for chain-linking with each other; a sliding assembly slidably combined between the first track portion and the second track portion, and the sliding assembly drives the first track portion and the second track portion to chain-link (engage) or separate from each other; a square block combined at the end of the first track portion of the first tape, and the square block provides the function of inserting and fixing the end of the second track portion of the second tape; and the first track portion has a convex portion, and the second track portion has a concave portion corresponding to the convex portion, and when one end of the second track portion is inserted into the square block, the convex portion is embedded in the concave portion.

[0003] The zipper structure of this technical solution mainly uses two plastic tapes. On the corresponding surfaces of each tape, a track portion is respectively formed, and each track portion forms a convex rail and a groove. Thus, the track portions of the two tapes are connected by a zipper head. When the zipper head is slid, the track portions of the two tapes can be chain-linked (engaged) or separated from each other. However, the zipper with this structure does not have the function of resisting axial misalignment of the chain teeth engagement structure. When subjected to a force along the length direction of the zipper, the two tapes are likely to slide and misalign, resulting in the zipper being opened. Summary of the Invention

[0004] Therefore, the present invention provides a waterproof and airtight zipper, which solves the problem that the two tapes of the existing zipper are easily slid and misaligned by external forces, resulting in the failure of the cooperation between the tapes.

[0005] To achieve the above object, the present invention is realized by the following technical solutions:

[0006] A waterproof and airtight zipper includes a left tape body, a right tape body, and a zipper head provided on the left tape body and the right tape body. On the adjacent sides of the left tape body and the right tape body, sealing bases are provided. Along the thickness direction of each sealing base, more than two groups of sealing components are evenly distributed. Each sealing component includes a first sealing protrusion and a second sealing protrusion; when the zipper is chain-linked, a first sealing groove for clamping the first sealing protrusion is formed between adjacent second sealing protrusions, and a second sealing groove for clamping the second sealing protrusion is formed between adjacent first sealing protrusions.

[0007] Preferably, two sets of sealing components are evenly distributed along the thickness direction of the sealing base. Two first sealing protrusions are arranged on the right belt body, and a second sealing groove is formed between two adjacent first sealing protrusions. On the left belt body, two first sealing grooves are correspondingly formed by three evenly distributed second sealing protrusions. When the zipper is zipped, the two first sealing protrusions are clamped in the first sealing grooves, and the middle second sealing protrusion is clamped in the second sealing groove.

[0008] Preferably, two sets of sealing components are evenly distributed along the thickness direction of the sealing base. One first sealing protrusion and two second sealing protrusions are sequentially arranged on the left belt body from top to bottom, and two corresponding second sealing protrusions and one first sealing protrusion are sequentially arranged on the right belt body from top to bottom.

[0009] Preferably, a plurality of bumps for preventing the axial displacement of the zipper are evenly arranged on the first sealing protrusion, and clamping grooves for cooperating with the bumps are arranged in the first sealing groove.

[0010] Preferably, the cross section of the first sealing protrusion is spherical.

[0011] Preferably, when the zipper is zipped, the upper and lower ends of the sealing bases on the left belt body and the right belt body are on the same horizontal plane.

[0012] By adopting the foregoing technical solutions, the beneficial effects of the present invention are as follows:

[0013] The present invention improves the sealing structure. By arranging a plurality of sets of sealing components between the left belt body and the right belt body, two sealing forms are formed, namely, the cooperation of the first sealing protrusions and the first sealing grooves with different shapes arranged in the thickness direction of the zipper, and the cooperation of the second sealing protrusions and the second sealing grooves. The two sealing forms cooperate and complement each other. Structurally, compared with a plurality of sets of replicated sealing structures with the same form, it has stronger structural stability. The sealing components can withstand greater axial forces and have a stronger function of preventing the cooperation failure of the sealing components due to sliding misalignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional structural view of the first embodiment of the present invention (showing separation and after zipping);

[0015] Figure 2 It is a cross-sectional structural view of the second embodiment of the present invention;

[0016] Figure 3 It is a cross-sectional structural view of the third embodiment of the present invention;

[0017] Figure 4 It is a distribution structural view of the bumps and the clamping grooves of the third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The embodiments of the present invention will be described in detail below in conjunction with specific embodiments, so as to fully understand how the present invention uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly.

[0019] Embodiment 1

[0020] Reference Figure 1 , a waterproof and airtight zipper, comprising a left belt body 1, a right belt body 2 and a zipper head (not shown in the figure) provided on the left belt body 1 and the right belt body 2. The left belt body 1 and the right belt body 2 are made of waterproof and airtight materials. Sealing bases 3 are provided on one side of the left belt body 1 and the right belt body 2 adjacent to each other. Two groups of sealing components 4 are evenly distributed along the thickness direction of the sealing base 3. Each sealing component 4 includes a first sealing protrusion 41 and a second sealing protrusion 42; when the zipper is zipped, a first sealing groove 51 for clamping the first sealing protrusion 41 is formed between two adjacent second sealing protrusions 42, and a second sealing groove 52 for clamping the second sealing protrusion 42 is formed between two adjacent first sealing protrusions 41;

[0021] In this embodiment, two groups of sealing components 4 are evenly distributed along the thickness direction of the sealing base 3. Specifically, two first sealing protrusions 41 are provided on the right belt body 2, and a second sealing groove 52 is formed between two adjacent first sealing protrusions 41. Two first sealing grooves 51 are correspondingly formed on the left belt body 1 by three evenly distributed second sealing protrusions 42. When the zipper is zipped, the two first sealing protrusions 41 are clamped in the first sealing grooves 51, and the second sealing protrusion 42 in the middle is clamped in the second sealing groove 52. Specifically, the first sealing protrusion 41 is provided on the right belt body 2, and the second sealing protrusion 42 is provided on the left belt body 1. The sealing components 4 on the left belt body 1 and the right belt body 2 adopt different structural designs;

[0022] Among them, when the zipper is zipped, the upper and lower ends of the sealing bases 3 on the left belt body 1 and the right belt body 2 are on the same horizontal plane, that is, when the zipper is zipped, the sealing bases 3 and the sealing components 4 between the left belt body 1 and the right belt body 2 are in a flat structure at both the upper and lower ends after cooperation; this structure can reduce the fitting gap between the sealing components, reduce the probability of the medium entering from the gap, and at the same time reduce the occurrence of the gap becoming larger due to the action of external objects;

[0023] Specifically, the cross-section of the first sealing protrusion 41 is spherical; correspondingly, the first sealing groove 51 also has a spherical groove-like structure; and the second sealing protrusion 42 is a protrusion-like structure with edges and corners, and the thickness of the end portion is slightly larger than that of the root portion. The second sealing protrusion 42 is embedded between the two first sealing protrusions 41. The three second sealing protrusions 42 and the two first sealing protrusions 41 are mutually constrained after being chained. The structure is stable, and the spherical cross-sectional structure is more conducive to the chaining of the zipper.

[0024] Embodiment 2

[0025] refer to Figure 2 Compared with the first embodiment, two groups of sealing components 4 are evenly distributed on the sealing base 3 along the thickness direction thereof, and one first sealing protrusion 41 and two second sealing protrusions 42 are sequentially arranged on the left belt body 1 from top to bottom, and two corresponding second sealing protrusions 42 and one first sealing protrusion 41 are sequentially arranged on the right belt body 2 from top to bottom. In this embodiment, the left belt body and the right belt body are centrally symmetrical structures, the first sealing protrusion 41 and the adjacent second sealing protrusion 42 form a second sealing groove 52, and the second sealing protrusion 42 located in the middle is embedded therein, forming two groups of sealing connection structures in the middle of the left belt body 1 and the right belt body 2.

[0026] In this structure, during production, a set of mold parameters can be used to participate in the production of the sealing components on the left belt body and the right belt body, reducing the investment in research and development efforts; at the same time, the products produced have the same bearing strength whether from the front or back of the zipper, and are suitable for more applications; and compared with the first embodiment, without increasing the thickness of the sealing component, another set of sealing connection structures is added, further improving the sealing and structural strength of the product.

[0027] Embodiment 3

[0028] refer to Figure 3 , Figure 4 Compared with the first embodiment, the first sealing protrusion 41 is evenly provided with a plurality of protrusions 411 for preventing the zipper from axially staggering, and the first sealing groove 51 is provided with a slot 511 ( Figure 4 Only part of the zipper is shown, so only five protrusions 411 and five card slots 511 are shown). Specifically, each of the protrusions 411 is arranged at one end of the first sealing protrusion 41 away from the sealing base 3. After the zipper is closed, each of the protrusions 411 is respectively embedded in the corresponding card slots 511, forming multiple groups of card connection structures in the axial direction of the zipper to prevent the zipper from being dislocated due to the axial force, thereby further improving the stability of the zipper structure.

[0029] This embodiment only shows one form of the position of the bump 411. On the premise of meeting the processing possibility and usage requirements, the positions of the bump 411 and the card slot 511 can be set according to requirements, as long as multiple sets of clamping structures can be formed in the axial direction of the zipper.

[0030] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all of them fall within the protection scope of the present invention.

Claims

1. A waterproof and airtight zipper, comprising a left tape body, a right tape body, and a zipper head provided on the left tape body and the right tape body. Characterized in that: On one side of the left tape body adjacent to the right tape body, a sealing base is provided, and two or more groups of sealing components are evenly distributed along the thickness direction of the sealing base. Each of the sealing components includes a first sealing protrusion and a second sealing protrusion; When the zipper is closed, a first sealing groove for clamping the first sealing protrusion is formed between two adjacent second sealing protrusions, and a second sealing groove for clamping the second sealing protrusion is formed between two adjacent first sealing protrusions; A plurality of bumps for preventing the axial displacement of the zipper are evenly arranged on the first sealing protrusion, and a clamping groove for cooperating with each of the bumps is arranged in the first sealing groove; The shapes of the first sealing protrusion and the second sealing protrusion are different, and the shapes of the first sealing groove and the second sealing groove are different.

2. The waterproof and airtight zipper according to claim 1, Characterized in that: The cross section of the first sealing protrusion is spherical.

3. The waterproof and airtight zipper according to claim 1 or 2, Characterized in that: Two groups of sealing components are evenly distributed along the thickness direction of the sealing base. Two first sealing protrusions are provided on the right tape body, and a second sealing groove is formed between two adjacent first sealing protrusions. Two first sealing grooves are correspondingly formed on the left tape body by three evenly distributed second sealing protrusions. When the zipper is closed, the two first sealing protrusions are clamped in the first sealing grooves, and the middle second sealing protrusion is clamped in the second sealing groove.

4. The waterproof and airtight zipper according to claim 1 or 2, Characterized in that: When the zipper is closed, the upper and lower ends of the sealing bases on the left tape body and the right tape body are on the same horizontal plane.

5. A waterproof and airtight zipper, comprising a left tape body, a right tape body, and a zipper head provided on the left tape body and the right tape body. Characterized in that: On one side of the left tape body adjacent to the right tape body, a sealing base is provided, and two or more groups of sealing components are evenly distributed along the thickness direction of the sealing base. Each of the sealing components includes a first sealing protrusion and a second sealing protrusion; One first sealing protrusion and two second sealing protrusions are sequentially arranged on the left tape body from top to bottom, and two corresponding second sealing protrusions and one first sealing protrusion are sequentially arranged on the right tape body from top to bottom; When the zipper is closed, a first sealing groove for clamping the first sealing protrusion is formed between two adjacent second sealing protrusions. A plurality of bumps for preventing the axial displacement of the zipper are evenly arranged on the first sealing protrusion, and a clamping groove for cooperating with each of the bumps is arranged in the first sealing groove; The shapes of the first sealing protrusion and the second sealing protrusion are different, and the shapes of the first sealing groove and the second sealing groove are different.

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