CN214854786U - Mandarin duck type pull head pair and zipper using same - Google Patents

Abstract

The first pull head comprises a first upper cover plate and a first lower cover plate which are arranged at the upper part and the lower part, the second pull head comprises a second upper cover plate and a second lower cover plate which are arranged at the upper part and the lower part, and a pull nose which is convexly arranged on the second upper cover plate, the first upper cover plate and the first lower cover plate jointly define a cavity-containing part which can contain one end part of the second pull head at one end part of the first pull head; the zipper is characterized in that a notch is formed in a wall body, used for constructing the cavity-containing part, of the first upper cover plate, the notch is configured to enable the front end of the pull nose to extend into the notch, and when the end part of the second pull head is inserted into the cavity-containing part of the first pull head, the front end of the pull nose of the second pull head extends into the notch. The end part of the second pull head can be inserted into the cavity containing part to form a first inserting positioning point of the pull head pair, and the front end of the pull nose of the second pull head can be extended into the notch to form a second inserting positioning point of the pull head pair.

Description

Mandarin duck type pull head pair and zipper using same

Technical Field

The invention relates to a pull head group, in particular to a mandarin duck type pull head pair and a zipper with the same.

Background

In order to be able to easily open or close the opening portion of the braid, a zipper, such as a double-end zipper applied to a luggage compartment, is generally sewn to the opening portion. The double-end zipper comprises a pair of left and right separated zipper cloth belts and a pair of sliders capable of being arranged on the zipper cloth belts in a sliding mode, and the opening and closing of the zipper are controlled by changing the relative positions of the sliders. For the pull head pair, the applicant proposed a utility model with patent number CN201821476093.5 in 09/10/2018, and disclosed a pull head set capable of being sleeved with each other, which includes a first pull head and a second pull head, the first pull head includes a first upper wing plate, a first lower wing plate and a first connecting post arranged at the front end of the first pull head, the first upper wing plate, the first lower wing plate and the first connecting post form a Y-shaped first tooth channel therebetween; the second slider comprises a second upper wing plate and a second lower wing plate which are arranged at the upper and lower parts, and a second connecting column arranged at the front end of the second slider, and a Y-shaped second zipper tooth channel is formed among the second upper wing plate, the second lower wing plate and the second connecting column; the zipper is characterized in that an upper sleeving mechanism is arranged at the rear end of the first upper wing plate, a lower sleeving mechanism is arranged at the rear end of the first lower wing plate, the upper sleeving mechanism and the lower sleeving mechanism define a sleeving space for sleeving the rear end of the second upper wing plate and the rear end of the second lower wing plate, the sleeving space is used for reducing the inclination offset of a second pull head sleeved on the sleeving space relative to the first pull head, a rear port of the first zipper tooth channel is communicated with the sleeving space, and an overlapping area exists between the rear port of the first zipper tooth channel and the sleeving space in the front-rear direction.

Disclosure of Invention

In patent CN201821476093.5, the slider group is kept connected by a single positioning point formed by inserting the rear ends of the second upper and lower wing plates into the socket space of the first slider. However, when the zipper assembly sleeved together is placed in a shaking application scene, the first slider and the second slider are very easy to loosen and disengage, which is obviously a very undesirable application experience. How to enhance the connection stability of the pull head pair so that they can be kept together for a long time is one of the technical problems to be solved by the present invention.

In view of this, the invention provides a pair of hermaphroditic pull heads, which includes a first pull head and a second pull head capable of including two pull heads for matching and matching, where the first pull head includes a first upper cover plate and a first lower cover plate which are separately arranged up and down, the second pull head includes a second upper cover plate and a second lower cover plate which are separately arranged up and down, and a pull nose protruding from the second upper cover plate, and the first upper cover plate and the first lower cover plate define a cavity-containing portion which is capable of including one end of the second pull head at one end of the first pull head; the first upper cover plate is provided with a notch on a wall body used for constructing the cavity containing part, the notch is configured to enable the front end of the pull nose to extend into the notch, and when the end part of the second pull head is inserted into the cavity containing part of the first pull head, the front end of the pull nose of the second pull head extends into the notch.

Wherein the cavity-containing part is positioned between the first upper cover plate and the first lower cover plate and is positioned at one end part of the first pull head. And partial walls of the first upper cover plate and the first lower cover plate become walls for constructing the chamber-containing part. The cavity-containing portion can contain one end portion of the second slider, that is, the cavity-containing portion can contain one end portion of the second upper and lower cover plates.

And a notch is arranged on the wall body of the first upper cover plate for constructing the cavity-containing part, the position of the notch is defined by the characteristics, the notch is positioned on the first upper cover plate and also positioned on the wall body of the cavity-containing part, and the notch is also positioned on the cavity-containing part. The notch can penetrate through the first upper cover plate up and down or can not penetrate through the first upper cover plate up and down.

Wherein the notch is configured to allow the front end of the pull nose to extend into the notch, and the above feature defines that the notch has a suitable volume to allow the front end of the pull nose to extend into the notch, or to allow the front end of the pull nose to extend into the notch integrally with the front end of the pull nose.

When the end part of the second slider is inserted into the cavity containing part of the first slider, the front end of the pull nose of the second slider extends into the notch. The above feature defines that when the first slider and the second slider are combined together, not only the end part of the second slider is inserted into the cavity containing part of the first slider, but also the front end of the pull nose of the second slider extends into the notch, so as to form a double positioning structure. When the first slider and the second slider are separated, not only the end part of the second slider leaves the cavity-containing part of the first slider, but also the front end of the pull nose of the second slider leaves the notch.

According to the technical scheme, compared with the prior patent CN201821476093.5, the beneficial technical effects of the invention are as follows:

1. when the end part of the second pull head is inserted into the cavity containing part of the first pull head, the front end of the pull nose of the second pull head extends into the notch, so that the end part of the second pull head can be inserted into the cavity containing part to form a first inserting positioning point of the pull head pair, and the front end of the pull nose of the second pull head can also extend into the notch to form a second inserting positioning point of the pull head pair. When the second pull head shakes relative to the first pull head, the end part of the second pull head can be limited up and down by the first upper cover plate and the first lower cover plate, the vertical shaking amount of the second pull head is reduced, and the left and right shaking amounts of the second pull head are reduced by the matching of the notch and the front end of the pull nose of the second pull head, and the cavity containing part and the notch are arranged up and down, namely the first inserting positioning point and the second inserting positioning point are arranged up and down, so that a vertically split double positioning structure is formed, the relatively stable connection between the first pull head and the second pull head is favorably formed, and the difficulty of mutual separation of the pull heads is increased. In addition, the depth of the end part of the second slider inserted into the cavity containing part can be judged by observing the depth of the front end of the pull nose extending into the notch, and the use safety feeling can be provided.

2. Because the front end of the pull nose of the second pull head can extend into the notch, under the condition that the pull nose is provided with the same length, compared with the scheme that the pull nose is arranged behind the pull nose to avoid the first upper cover plate without the notch, the arrangement of the notch can enable the pull nose to be arranged close to the front end of the second upper cover plate as much as possible, so that the length of the second upper cover plate can be shortened, the weight of the second pull head is further reduced, and the probability that the second pull head is separated from the first pull head under the traction of self gravity is reduced.

The following modifications are made to the pair of said loved type tabs proposed by the present invention, and the following modifications can be applied to an embodiment alone or in combination.

Further technical solution may also be that the width of the notch is configured to be in clearance fit with the front end of the pull nose. The above feature defines that in width, the fitting relation of the notch and the front end of the pull nose is clearance fit, so that the front end of the pull nose can conveniently extend into the notch.

The further technical proposal can also be that the gap is in a trumpet shape which is gradually enlarged from inside to outside. Therefore, the horn-shaped gap can guide the front end of the pull nose of the second pull head to smoothly extend into the gap, and the matching operation between the front end of the pull nose and the gap is simplified.

In a further technical solution, the wall body of the first upper cover plate for constructing the cavity-containing portion is raised upward relative to the other wall bodies of the first upper cover plate, so that the upper surface of the first upper cover plate has a step-like stepped shape. Therefore, the stereoscopic impression of the first upper cover plate can be enhanced, and the appearance effect is optimized.

Further, according to a further aspect, with reference to the first upper cover plate, a bottom surface of the first lower cover plate may be an inclined surface that is inclined upward gradually from one end portion of the first slider to the other end portion thereof. In this way, the bottom surface is an inclined surface, and on one hand, the space formed by the bottom surface and the first upper cover plate at one end part of the first slider is larger than the space formed by the bottom surface and the first upper cover plate at the other end part of the first slider, so that arrangement space is provided for forming the cavity-containing part at one end part of the first slider; on the other hand, when the first slider meets an obstacle in the sliding process, the first slider can smoothly pass through the bottom surface by utilizing the guiding function of the bottom surface.

The further technical scheme can also be that the middle part of the bottom surface of the first lower cover plate is concavely arranged to form a weight reduction pit, and the weight reduction pit and the peripheral wall body are in smooth transition. On one hand, the weight of the first pull head can be reduced, and the probability that the first pull head is separated from the second pull head due to self gravity traction is reduced; on the other hand, when the first slider meets an obstacle in the sliding process, the first slider can smoothly pass through the weight-reducing pit and the surrounding wall body by using the smooth transition structure.

In addition, the invention also provides a zipper applying the mandarin duck type zipper head pair, which comprises a pair of zipper cloth belts arranged on the left and the right sides, wherein the first zipper head and the second zipper head are arranged on the zipper cloth belts in a sliding manner.

Because the invention has the characteristics and the advantages, the invention can be applied to the mandarin duck type pull head pair and the applied zipper.

Drawings

Fig. 1 is a schematic perspective view of a mandarin duck type slider pair to which the technical scheme of the invention is applied;

FIG. 2 is a schematic top view (from top to bottom) of the first slider 100;

FIG. 3 is a schematic sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic side view of the pair of hermaphroditic tabs;

figure 5 is a schematic perspective view of the first slider 100 from another perspective.

Detailed Description

The following describes a pair of hermaphroditic sliders and a structure of a zipper using the pair of hermaphroditic sliders applying the technical scheme of the invention with reference to the accompanying drawings.

As shown in fig. 1 to 4, the present invention provides a pair of hermaphroditic sliders, which includes a first slider 100 and a second slider 200 that can include two sliders for mating and pairing, wherein the first slider 100 includes a first upper cover plate 1, a first lower cover plate 1a, and a first connecting post 14 connected therebetween. A first fastener element passage is formed between the first upper cover plate 1, the first lower cover plate 1a and the first connecting post 14. The second slider 200 comprises a second upper cover plate 2 and a second lower cover plate 2a which are arranged up and down separately, a second connecting column 24 connected between the second upper cover plate and the second lower cover plate, and a pull nose 21 convexly arranged on the second upper cover plate 2. A second fastener element passage is formed between the second upper cover plate 2, the second lower cover plate 2a and the second connecting post 24. The first upper cover plate 1 and the first lower cover plate 1a together define an engagement cavity 10 at one end A of the first slider 100, which can be engaged with one end B of the second slider 200; it is characterized in that a notch 11 is provided on a wall body of the first upper cover plate 1 for constructing the cavity-containing portion 10, the notch 11 is configured to allow the nose front end 21a (i.e. the front end 21a of the nose 21) to extend into it, and when the end B of the second slider 200 is inserted into the cavity-containing portion 10 of the first slider 100, the nose front end 21a of the second slider 200 extends into the notch 11.

Wherein the cavity-containing part 10 is located between the first upper cover plate 1 and the first lower cover plate 1a and at the end A of the first slider 100. The partial walls of the first upper cover 1 and the first lower cover 1a become walls for constructing the chamber-containing portion 10. The cavity-containing portion 10 can contain an end B of the second slider 200, that is, the cavity-containing portion 10 can contain one end of the second upper cover plate 2 and the second lower cover plate 2 a. In addition, a notch 11 is arranged on the wall body of the first upper cover plate 1 for constructing the cavity-containing part 10, the above characteristics define the position of the notch 11, the notch 11 is positioned on the first upper cover plate 1 and also on the wall body of the cavity-containing part 10, and the notch 11 is also positioned on the cavity-containing part 10. The notch 11 penetrates the first upper cover plate 1 vertically, but in other embodiments, the notch 11 may not penetrate the first upper cover plate 1 vertically.

According to the technical scheme, compared with the prior patent CN201821476093.5, the beneficial technical effects of the invention are as follows: firstly, since the cavity-containing part 10 and the notch 11 are provided at the end a of the first slider 100, the end B of the second slider 200 can be inserted into the cavity-containing part 10 to form a first insertion positioning point of the slider pair, and the nose front end 21a of the second slider 200 can be inserted into the notch 11 to form a second insertion positioning point of the slider pair. When the second slider 200 swings relative to the first slider 100, the first upper cover plate 1 and the first lower cover plate 1a can be used for limiting the end part B of the second slider 200 up and down, so as to reduce the vertical swing amount of the second slider 200, and the notch 11 can be used for matching with the nose front end 21a of the second slider 200 to limit the left and right, so as to reduce the left and right swing amount of the second slider 200, and because the cavity-containing part 10 and the notch 11 are arranged up and down, namely the first inserting positioning point and the second inserting positioning point are arranged up and down, a vertically split dual positioning structure is formed, so that a relatively stable connection is formed between the first slider 100 and the second slider 200, and the difficulty of mutual separation of the slider pairs is increased. Further, the depth of insertion of the end portion B of the second slider 200 into the cavity-containing portion 10 can be determined by observing the depth of insertion of the tab leading end 21a into the notch 11, thereby providing a feeling of safety in use. Secondly, since the front end 21a of the pull nose of the second slider 200 can extend into the notch 11, when the pull nose 21 is provided with the same length, compared with a scheme that the pull nose 21 is arranged behind the first upper cover plate 1 without the notch 11, the arrangement of the notch 11 can enable the pull nose 21 to be arranged close to the front end B of the second upper cover plate 2 as much as possible, so that the length of the second upper cover plate 2 can be shortened, the weight of the second slider 200 can be reduced, and the probability that the second slider 200 is separated from the first slider 100 under the traction of self gravity can be reduced.

As shown in fig. 1, the gap width L is configured to be in clearance fit with the nose front end 21 a. The above feature defines that the matching relationship of the notch 11 and the nose front end 21a is a clearance fit in the width, so that the nose front end 21a can conveniently extend into the notch 11. In addition, the notch 11 is in a gradually expanding trumpet shape from inside to outside. Thus, the horn-shaped notch 11 can guide the nose tip 21a of the second slider 200 to smoothly extend into the notch 11, and the fitting operation between the nose tip 21a and the notch 11 is simplified. Furthermore, when viewed from the top, the notch 11 is located on the first lower cover plate 1a, that is, the position of the first lower cover plate 1a corresponding to the notch 11 is solid and is not provided with a gap, so that dust particles entering the lower portion of the first upper cover plate 1 through the notch 11 can be blocked by the first lower cover plate 1 a.

As shown in fig. 4, the wall of the first upper cover plate 1 for constructing the cavity 10 is raised upward relative to the other walls of the first upper cover plate 1, so that the upper surface 12 of the first upper cover plate 1 has a stepped shape. Thus, the stereoscopic impression of the first upper cover plate 1 can be enhanced, and the appearance effect can be optimized. With the first upper cover plate 1 as a reference, the bottom surface 12a of the first lower cover plate 1a is an inclined surface that is inclined upward gradually from the end a to the end C of the first slider 100. Thus, the bottom surface 12a is an inclined surface, and on one hand, the distance space formed by the bottom surface 12a and the first upper cover plate 1 at the end A of the first slider 100 is larger than the distance space formed at the end C of the first slider 100, so that an arrangement space is provided for forming the cavity-containing portion 10 at the end A of the first slider 100; on the other hand, when the first slider 100 encounters an obstacle during sliding, the first slider can smoothly pass through the bottom surface 12a by the guiding action.

As shown in fig. 5, a weight-reducing pit 13a is concavely arranged in the middle of the bottom surface 12a of the first lower cover plate 1a, and the weight-reducing pit 13a smoothly transitions with the surrounding wall body. On one hand, the weight of the first slider 100 can be reduced, and the probability that the first slider 100 is separated from the second slider 200 due to self gravity traction is reduced; on the other hand, when the first slider 100 encounters an obstacle during sliding, the first slider can smoothly pass through the weight-reduction pit 13a and the surrounding wall thereof by virtue of a smooth transition structure.

In addition, the invention also provides a zipper (not shown in the figure) applying the hermaphroditic slider pair, which comprises a pair of zipper cloth belts arranged on the left and the right in a split mode, and the first slider 100 and the second slider 200 are arranged on the zipper cloth belts in a sliding mode. In this embodiment, the first coupling post 14 of the first slider 100 is located at the end a of the first slider 100, and the second coupling post 24 of the second slider 200 is located at the end B of the second slider 200, so that the zipper can be closed when the first slider 100 and the second slider 200 are brought together.

Because the invention has the characteristics and the advantages, the invention can be applied to the mandarin duck type pull head pair and the applied zipper.

Claims (7)

1. The pair of double-taste sliders comprises a first slider and a second slider, wherein the two sliders can be matched and used in a matched mode, the first slider comprises a first upper cover plate and a first lower cover plate which are arranged in an upper-lower split mode, the second slider comprises a second upper cover plate and a second lower cover plate which are arranged in an upper-lower split mode, and a pull nose which is convexly arranged on the second upper cover plate, and a cavity containing part which can contain one end part of the second slider is defined and constructed by the first upper cover plate and the first lower cover plate at one end part of the first slider; the first upper cover plate is provided with a notch on a wall body used for constructing the cavity containing part, the notch is configured to enable the front end of the pull nose to extend into the notch, and when the end part of the second pull head is inserted into the cavity containing part of the first pull head, the front end of the pull nose of the second pull head extends into the notch.

2. The pair of loved tabs of claim 1, wherein said gap width is configured to be a clearance fit with said pull nose front end.

3. The pair of hermaphroditic tabs according to claim 1, wherein the notches are flared in a gradual expansion from inside to outside.

4. The pair of hermaphroditic tabs according to claim 1, 2 or 3, wherein the wall of the first upper cover plate for constructing the cavity-containing portion is raised upward relative to the other walls of the first upper cover plate, so that the upper surface of the first upper cover plate has a step-like staggered shape.

5. The pair of coupled sliders according to claim 4, wherein a bottom surface of the first lower cover is an inclined surface which is inclined upward gradually from one end portion of the first slider to the other end portion thereof with reference to the first upper cover.

6. The pair of coupled-type tabs according to claim 5, wherein the first lower cover plate is recessed at a central portion of a bottom surface thereof to form a weight-reduction pit, and the weight-reduction pit is smoothly transited to a peripheral wall thereof.

7. A zipper with the double-pattern zipper head pair of any one of claims 1-6, comprising a pair of zipper cloth belts which are arranged on the left and the right in a split mode, and the first zipper head and the second zipper head are arranged on the zipper cloth belts in a sliding mode.

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