CN108903145B - Airtight double-pull head - Google Patents
Airtight double-pull head Download PDFInfo
- Publication number
- CN108903145B CN108903145B CN201810766924.0A CN201810766924A CN108903145B CN 108903145 B CN108903145 B CN 108903145B CN 201810766924 A CN201810766924 A CN 201810766924A CN 108903145 B CN108903145 B CN 108903145B
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- pull
- heads
- fixed
- zipper
- movable
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/26—Sliders
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- Slide Fasteners (AREA)
Abstract
The invention provides a closed double-pull head, relates to the technical field of zippers, and solves the technical problem that 2 zipper heads are used on the existing waterproof box, bag or bag to be pulled together from two ends of a zipper, and the two zipper heads are usually separated under the condition of not being pulled apart, so that the zipper is separated. The device comprises two pull heads and a connecting and fastening mechanism, wherein the connecting and fastening mechanism comprises a movable part and a fixed part, the movable part and the fixed part are respectively arranged on the two pull heads, and when the two pull heads are attached, the fixed part is matched and connected with the movable part, so that the relative positions of the two pull heads are fixed. The invention is used for the close connection of two pull heads after the two pull heads are in relative contact at any position, has strong tightness and avoids the disconnection of the two fastened pull heads under the condition of abnormal pulling.
Description
Technical Field
The invention relates to the technical field of zippers, in particular to a closed double-pull head.
Background
The zipper is a connecting piece for making articles be combined or separated by means of continuously arranged zipper teeth, and is extensively used for clothes, bag and tent, etc. it is characterized by that two belts are respectively equipped with a fastener formed from a row of metal teeth or plastic teeth for connecting edge of opening, and a sliding piece can be used for pulling two rows of teeth into interlocking position to make the opening be closed. As shown in fig. 1, a conventional slide fastener includes fastener elements and a slider, wherein the fastener elements are key parts and directly determine side pull strength of the slide fastener, the general slide fastener includes two fastener tapes, each fastener tape has one row of fastener elements, the two rows of fastener elements are arranged in a staggered manner, the slider clamps the fastener elements on both sides, the slider includes a clamping plate portion for clamping the fastener tapes therein and a pull tab mounting ring located on the clamping plate portion, a pull tab is provided with a window hole for the pull tab mounting ring to pass through, the fastener elements 1 on both sides can be engaged or disengaged with each other by sliding the slider by pulling the pull tab, the clamping plate portion includes an upper clamping plate and a lower clamping plate arranged in parallel and a base core connecting the upper clamping plate and the lower clamping plate, the base core is located at a front side of the clamping plate portion, and the front side is a direction in which the slider is pulled to engage the fastener elements.
For zippers used in draw-bar boxes, backpacks, and handbags for waterproof use, a double-slider structure is provided, and two sliders can be pulled together from both ends of the zipper. The existing zipper head is often used in a way that when the zipper head is matched with a waterproof or airtight zipper, a gap between the zipper head and the zipper and the two zipper heads cannot be sealed after being contacted, or are separated due to vibration or mistaken collision, so that the sealing function of the sealed double-head zipper fails.
Disclosure of Invention
The invention aims to provide a closed double-pull head, which aims to solve the technical problems that when a double-head zipper is often matched with a waterproof or airtight zipper for use, a gap between the zipper head and the zipper, and the two zipper heads cannot be tightly sealed after being contacted, or are separated due to vibration or mistaken collision, so that the closing function of the closed double-head zipper fails in the prior art. The technical effects (simple structure, low cost and convenient use) generated by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a closed double-pull head, which comprises two pull heads and a connecting and fastening mechanism, wherein the connecting and fastening mechanism comprises a movable part and a fixed part, the movable part and the fixed part are respectively arranged on the two pull heads, and when the two pull heads are attached, the fixed part is matched and connected with the movable part, so that the relative positions of the two pull heads are fixed.
Preferably, a cavity matched with the fixed part is arranged on the movable part, when the two sliders are closed, part or all of the area of the fixed part is located in the cavity, and the movable part and the fixed part are matched to restrict the relative movement of the two sliders.
Preferably, the fixed part is in an arc barb shape, the movable part is in contact fastening with the fixed part in the closing process of the two pull heads, and the movable part moves along the surface of the fixed part, so that the fixed part is sleeved on the movable part, and the movable part is connected and fastened with the fixed part.
Preferably, the movable member is formed by bending a metal wire into a ring, two ends of the metal wire are connected with one of the sliders, the fixed member is connected with the other slider, and the ring is internally provided with the cavity through which the movable member passes.
Preferably, the pull head comprises a pull head body and a pull piece, wherein a pull piece mounting ring connected with the pull piece is arranged on the pull head body, the pull piece is sleeved with the pull piece mounting ring, the pull piece can move on the pull head body, and when the pull piece is lifted, the pull piece can support the moving part to be lifted, so that the moving part is separated from the fixing part.
Preferably, the moving part is arc-shaped, the moving part is arranged on the pull piece mounting ring and is higher than the height of the connecting part of the moving part and the fixing part, and the moving part is arranged on the pull piece mounting ring and is far away from one end of the fixing part.
Preferably, the slider body comprises an upper plate and a lower plate, the upper plate and the lower plate being connected by a basic core, the basic core being externally wrapped with an elastic layer.
Preferably, the base core is disposed at the center of the slider body, and when the two sliders are fitted, the two base cores are in contact with each other.
Preferably, the movable part is a metal plate, one end of the movable part, which is far away from the fixed part, is connected with one of the sliders, a through cavity is formed in one end of the movable part, which is close to the fixed part, the fixed part is connected with the other slider, the movable part has elasticity, when the two sliders are closed, the movable part is in contact with the fixed part, and the movable part moves to the fixed part along the arc direction of the fixed part and is located in the cavity, so that the movable part is connected with the fixed part.
Preferably, a vertical extending plate is arranged on the upper plate or the lower plate of one of the sliders, the vertical extending plate is arranged on the outer surface of the upper plate or the lower plate and is perpendicular to the upper plate and the lower plate, and when the two sliders are closed, the vertical extending plate covers a gap between the two sliders.
The invention provides a closed double-pull-head device which comprises two pull heads and a connecting and fastening mechanism, wherein the connecting and fastening mechanism comprises a movable part and a fixed part, the movable part and the fixed part are respectively arranged on the two pull heads, and when the two pull heads are attached, the fixed part is matched and connected with the movable part, so that the positions of the two pull heads are fixed, the technical problems that when the existing double-pull heads are attached, gaps exist between the two pull heads, and the two pull heads are easy to disengage due to vibration or mistaken collision are solved, and the closing performance of a zipper using the closed double-pull head is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an unopened elevational view of the closed double pull head;
FIG. 2 is a front view of the closed double pull head;
FIG. 3 is a top plan view of the closed double pull tab;
FIG. 4 is a cross-sectional view of two slider bodies;
FIG. 5 is a view of the movable member when pulled up;
figure 6 shows the movable element in the engaged configuration.
In figure 1, a moving part; 2. a fixing member; 3. a slider body; 4. a base core; 5. a pull tab mounting ring; 6. a pull tab.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention provides a closed double-pull head, which comprises two pull heads and a connecting and fastening mechanism as shown in figures 1-4, wherein the connecting and fastening mechanism comprises a movable part 1 and a fixed part 2, the movable part 1 and the fixed part 2 are respectively arranged on the two pull heads, when the two pull heads are attached, the fixed part 2 is matched and connected with the movable part 1, so that the two pull heads are connected, the relative positions of the two pull heads are fixed, and the two pull heads are prevented from relatively moving under the condition of vibration or mistaken collision, and a zipper is opened.
Furthermore, in order to improve the tightness of the double-pull head, the surface where the two pull heads are attached is a front end surface, and when the front end surfaces of the two pull heads are arranged to be a plane or are matched with each other to enable the two pull heads to be closed, the front end surfaces of the two pull heads are completely attached, so that the tightness of the double-pull head is improved.
As an alternative embodiment, the mobile element 1 is provided with a chamber matching the fixed element 2. When the two sliders are closed, the movable piece 1 moves to the position of the fixed piece 2, so that part or all of the area of the fixed piece 2 is located in the chamber of the movable piece 1, the movable piece 1 is blocked by the side wall of the chamber and cannot smoothly slide out of the chamber, and the movable piece 1 and the fixed piece 2 are matched to restrict the relative movement of the two sliders.
Furthermore, the chamber runs through two opposite surfaces on the fixed part 2, the chamber is located on the moving part 1 and is close to the end of the fixed part 2, when the fixed part 2 is connected with the moving part 1, a part of area passes through the chamber, so that the fixed part 2 protrudes out of the surface of the moving part 1, the protruding part of the fixed part 2 is matched with the chamber, and the moving part 1 is clamped and fastened with the fixed part 2.
As an alternative embodiment, the fixing member 2 is in the shape of an arc barb, the fixing member 2 is composed of an arc body and a hook head, one end of the arc body is connected with the slider, and the other end of the arc body is connected with the hook head. The arc body is the arc, the crotch head is barb-like, two pull head closure in-process, moving part 1 at first contacts with the arc body of mounting 2, moving part 1 moves to crotch head department along the arcwall face of arc body and continues to move, make moving part 1 cover arrange in outside mounting 2, the partial area that mounting 2 is located the cavity or mounting 2 passes the cavity, make moving part 1 be connected with mounting 2, the crotch head cooperates with moving part 1, increase the contact distance of mounting 2 and moving part 1, improve moving part 1 and mounting 2's connection performance.
As an optional implementation mode, the movable member 1 is formed by bending a metal wire into a loop, two ends of the metal wire are connected with one of the sliders, the fixed member 2 is connected with the other slider, and a cavity for accommodating the movable member 1 is arranged in the loop. Further, two ends of the movable member 1 are fixed to different heights of the slider, so that the movable member 1 is elastically deformed in the rotation direction. Furthermore, the moving part 1 has rigidity, and the moving part 1 and the fixed part 2 are prevented from deforming and being incapable of being restored to cause device failure under the action of external force.
As shown in fig. 5-6, as an optional embodiment, the slider includes a slider body 3 and a pull-tab 6, a pull-tab mounting ring 5 connected to the pull-tab 6 is provided on the slider body 3, the pull-tab 6 is sleeved with the pull-tab mounting ring 5, the pull-tab 6 can move on the slider body 3, and when the pull-tab 6 is lifted, the pull-tab 6 can support the moving member 1 to be lifted, so that the moving member 1 is separated from the fixing member 2.
Further, the moving part is the arc, and moving part 1 sets up the height that highly is greater than the junction of moving part 1 and mounting 2 on pulling-on piece collar 5, and moving part 1 sets up the one end of keeping away from mounting 2 on pulling-on piece collar 5.
As an optional implementation mode, the pull head comprises a pull head body 3 and a pull piece 6, a pull piece mounting ring 5 connected with the pull piece 6 is arranged on the pull head body 3, the pull piece 6 can move relative to the pull head body 3 under the matching of the pull piece mounting ring 5 and the pull head body 3, a convex block is arranged on the contact surface of the pull piece 6 and the movable part 1, the convex block is in contact with the movable part 1, and when the pull piece 6 is lifted, the convex block can support the movable part 1 to be lifted, so that the fixed part 2 is separated from the movable part 1.
Further, moving part 1 is the arc, the height that highly is greater than moving part 1 and mounting 2's link of moving part 1 and pulling-on piece collar 5's link, moving part 1 sets up the one end of keeping away from mounting 2 on pulling-on piece collar 5, the both ends of moving part 1 are fixed in respectively on the not co-altitude of pull head, make moving part 1 have elastic deformation on the moving direction, the moving part, the connection chamber that pull head body and pulling-on piece collar cooperation constitute a pulling-on piece and pass, when pulling-on piece 6 removed, the lug is raised moving part 1 gradually with moving part 1 contact, moving part 1 and mounting 2 separation.
As an alternative embodiment, the slider body 3 comprises an upper plate and a lower plate, between which an outer surrounding edge is vertically arranged for restraining the pull tape of the slide fastener. The upper plate and the lower plate are connected through the base core 4, the periphery of the base core 4 is wrapped with an elastic layer, and the elastic layer is arranged on the periphery of the base core 4 in an injection molding mode. As an alternative embodiment, the base core 4 is provided at the center of the slider body 3, and when the two sliders are fitted, the two base cores 4 are in contact.
As an optional implementation manner, the movable member 1 is a metal plate, one end of the movable member 1, which is far away from the fixed member 2, is connected to one of the sliders, the fixed member 2 is connected to the other slider, a through chamber is formed in one end of the movable member 1, which is close to the fixed member 2, the movable member 1 has elasticity, the movable member 1 contacts the fixed member 2 in the closing process of the two sliders, and the movable member 1 moves to the fixed member 2 along the arc direction of the fixed member 2 and is located in the chamber, so that the movable member 1 is connected to the fixed member.
As an optional implementation mode, a vertical extension plate is arranged on the upper plate or the lower plate of one of the sliders, the vertical extension plate is arranged on the outer surface of the upper plate or the lower plate and is parallel to the upper plate and the lower plate, the vertical extension plate horizontally extends towards the other slider along the outer surface of the upper plate or the lower plate, and when the two sliders are closed, the vertical extension plate covers a gap between the two sliders, so that the functions of further preventing water and wind are achieved, and the sealing performance is improved. Furthermore, an elastic layer is arranged on the vertical extension plate.
The utility model provides a zipper, includes zipper strip and airtight two pull heads that draw, and two pull heads set up on the zipper strip, can follow the zipper strip and remove, and the chain tooth department of zipper strip is provided with waterproof colloid layer, and when the pull head set up when using on the zipper, the elastic layer of base core 4 outer parcel is light little contact with the waterproof colloid of zipper tooth all the time. When the two sliders are attached, the connecting piece is connected with the fixing piece 2, the two sliders are closed, the zipper is tightly leaned from left to right to the middle by the outer side surrounding edge of the sliders, and at the moment, the waterproof colloid layer of the zipper is tightly contacted with the elastic layer of the base core 4 to form a closed whole, so that the airtight requirement is met.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. The closed double-pull head is characterized by comprising two pull heads and a connecting and fastening mechanism, wherein the connecting and fastening mechanism comprises a movable part (1) and a fixed part (2), the movable part (1) and the fixed part (2) are respectively arranged on the two pull heads, and when the two pull heads are attached, the fixed part (2) is matched and connected with the movable part (1) to fix the relative positions of the two pull heads;
the zipper head comprises a zipper head body (3) and a zipper pull (6), a zipper pull mounting ring (5) connected with the zipper pull (6) is arranged on the zipper head body (3), the zipper pull (6) is sleeved with the zipper pull mounting ring (5), the zipper pull (6) can move on the zipper head body (3), and when the zipper pull (6) is lifted, the zipper pull (6) can support the moving member (1) to be lifted, so that the moving member (1) is separated from the fixing member (2);
the moving part (1) is arc-shaped, the moving part (1) is arranged on the pull piece mounting ring (5) and is higher than the height of the joint of the moving part (1) and the fixing part (2), and the moving part (1) is arranged on the pull piece mounting ring (5) and is far away from one end of the fixing part (2).
2. A closed double pull head according to claim 1, wherein said movable element (1) is provided with a chamber for engaging with said fixed element (2), and when said two pull heads are closed, a part or all of the area of said fixed element (2) is located in said chamber of said movable element (1), and said movable element (1) and said fixed element (2) cooperate to restrain the relative movement of said two pull heads.
3. The closed double pull head as claimed in claim 2, wherein the fixed member (2) is in the shape of an arc barb, and when the two pull heads are closed, the movable member (1) contacts with the fixed member (2), the movable member (1) moves along the surface of the fixed member (2), so that the fixed member (2) is sleeved on the movable member (1), and the movable member (1) is connected and fastened with the fixed member (2).
4. A closed double pull head according to claim 2, characterised in that said movable element (1) is constituted by a metal wire bent in a loop, the two ends of said wire being connected to one of said pull heads, said fixed element (2) being connected to the other pull head, said loop being provided with said cavity through which said fixed element (2) passes.
5. A closed double pull head according to claim 1, characterised in that the head body (3) comprises an upper plate and a lower plate, which are connected by a basic core (4), the basic core (4) being externally wrapped with an elastic layer.
6. Closed double pull head according to claim 5, characterised in that the base core (4) is arranged in the centre of the head body (3), the two base cores (4) being in contact when the two heads are applied.
7. The closed double-pull head as claimed in claim 3, wherein the movable member (1) is a metal plate, one end of the movable member (1) far away from the fixed member (2) is connected with one of the pull heads, one end of the movable member (1) close to the fixed member (2) is provided with a through chamber, the fixed member (2) is connected with the other pull head, the movable member (1) has elasticity, when the two pull heads are closed, the movable member (1) is in contact with the fixed member (2), and the movable member (1) moves to the fixed member (2) along the arc direction of the fixed member (2) to be located in the chamber, so that the movable member (1) is connected and fastened with the fixed member (2).
8. The closed double pull head as claimed in claim 5, wherein a vertical extension plate is provided on the upper plate or the lower plate of one of the pull heads, the vertical extension plate is provided on the outer surface of the upper plate or the lower plate and is perpendicular to the upper plate and the lower plate, and when the two pull heads are closed, the extension plate covers a gap between the two pull heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766924.0A CN108903145B (en) | 2018-07-12 | 2018-07-12 | Airtight double-pull head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766924.0A CN108903145B (en) | 2018-07-12 | 2018-07-12 | Airtight double-pull head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108903145A CN108903145A (en) | 2018-11-30 |
| CN108903145B true CN108903145B (en) | 2021-03-23 |
Family
ID=64411453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810766924.0A Active CN108903145B (en) | 2018-07-12 | 2018-07-12 | Airtight double-pull head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108903145B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110754763B (en) * | 2019-07-13 | 2021-08-06 | 宁波市鄞州乐可机电科技有限公司 | Case and bag |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58165805A (en) * | 1982-03-25 | 1983-09-30 | ワイケイケイ株式会社 | Slider for handle detachable slide fastener |
| DE3342453A1 (en) * | 1983-11-24 | 1985-06-05 | Opti Patent-, Forschungs- Und Fabrikations-Ag, Riedern-Allmeind | Slider of a slide fastener |
| KR200198244Y1 (en) * | 2000-05-09 | 2000-10-02 | 박명석 | Zipper with locking hook |
| DE202004006114U1 (en) * | 2004-04-15 | 2004-08-12 | Ortlieb, Hartmut | Waterproof zipper with two sliders |
| US7200901B2 (en) * | 2004-05-18 | 2007-04-10 | Quiksilver, Inc. | Zipper securing devices |
| JP5143283B2 (en) * | 2009-07-10 | 2013-02-13 | Ｙｋｋ株式会社 | Waterproof slide fastener |
| CN105686236B (en) * | 2016-04-23 | 2018-03-30 | 刚恒统 | The double heads that zip of waterproofing and airtight |
-
2018
- 2018-07-12 CN CN201810766924.0A patent/CN108903145B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108903145A (en) | 2018-11-30 |
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