Conjoined perforated trunk head

Abstract

The utility model discloses a one-piece perforated trunk head which comprises a pull head body and a pull nose, the pull head body is provided with an upper ship plate, a lower ship plate and a connecting column, the pull nose is arranged on the upper ship plate, the pull nose and the upper ship plate are integrally formed, the two ends of the pull nose are both connected with the upper ship plate, a through hole is formed in the front end of the pull nose, and the through hole is formed in the length direction of the pull head body. The pull tab and pull rope fixing structure has the advantages that the pull tab and pull rope fixing structure is convenient to produce and high in reliability, and the pull tab or the pull rope cannot be damaged.

Description

Technical Field

[0001] The utility model relates to zipper technology, in particular to a connected perforated elephant trunk zipper. Background Art

[0002] CN98119650.0 discloses a perforated elephant trunk slider. The front end of the slider's nose has a through hole, and the tail of the nose is suspended. The production process for this slider is as follows: the slider is first formed, then a pull tab or a drawstring is placed over the slider, and finally the tail of the nose is riveted to the slider's upper deck. This structure has the following disadvantages: first, the cost of riveting the tail of the nose is high. Second, the riveted tail of the nose lacks strength through plastic deformation alone. After long-term use, the nose may deform, and the drawstring may easily come loose from the tail of the nose. This makes production inconvenient and its reliability is limited. Furthermore, burrs are easily formed on the edge of the through hole at the front end of the nose, which can scratch the tab or snag the drawstring. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide an elephant trunk head that is easy to produce, highly reliable and will not damage the pull tab or the pull rope.

[0004] In order to achieve the above objectives, the solution of the present invention is:

[0005] A one-piece perforated elephant trunk pull, comprising a pull head body and a pull nose, the pull head body having an upper ship plate, a lower ship plate and a connecting column, the pull nose being arranged on the upper ship plate, the pull nose being integrally formed with the upper ship plate and both ends of the pull nose being connected to the upper ship plate, a through hole being provided at the front end of the pull nose, the through hole being provided along the length direction of the pull head body, an inner arc surface being provided on the inner side surface of the front end of the pull nose, and one end of the through hole being located in a depression of the inner arc surface.

[0006] Furthermore, it also includes a pull tab or a pull rope, and the pull tab or the pull rope is sleeved on the pull nose.

[0007] Furthermore, both side edges of the upper surface of the pull nose are provided with rounded corner structures.

[0008] Furthermore, the thickness of the pull tab or the pull rope is greater than the height of the through hole.

[0009] Furthermore, the pull nose has a connecting section close to the rear end of the slider body, and the connecting section is connected to the upper shipboard.

[0010] Furthermore, a groove is provided on the upper deck.

[0011] Furthermore, the groove is opened along the length direction of the slider.

[0012] Furthermore, the groove is located directly below the pull nose.

[0013] Furthermore, the connecting section is located in the groove.

[0014] Furthermore, the thickness of the connecting section is less than or equal to the depth of the groove.

[0015] After adopting the above structure, the zipper proposed by the utility model has the following technical effects: the pull nose is integrally formed with the upper plate, and both ends of the pull nose are connected to the upper plate, which greatly improves the product strength. The pull nose and the upper plate form a closed loop structure, so the pull nose will not be separated from the upper plate after repeated use. There is no risk of the pull cord or pull tab slipping out after installation. In addition, the pull nose does not need to be riveted during the production process, which can save process costs, is more convenient to produce, and has high product reliability. The inner side surface of the front end of the pull nose is provided with an inner arc surface, and the edge corner of the through hole is located at the bottom of the inner arc surface, which can reduce the direct contact area with the pull tab's hanging rod or rope, effectively improving the problems of scratching the hanging rod coating and the rope snagging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a one-piece perforated elephant trunk head of the utility model;

[0017] Figure 2 This is a side view of the structure of a one-piece perforated elephant trunk with a pull tab provided thereon;

[0018] In the figure: 1. pull nose, 2. upper ship plate, 3. lower ship plate, 4. fillet structure, 5. through hole, 6. inner arc surface, 7. pull tab, 8. tail, 9. connecting section, 10. groove. DETAILED DESCRIPTION

[0019] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0020] like Figure 1 and Figure 2 The one-piece perforated elephant trunk slider shown comprises a slider body and a slider nose 1.

[0021] The slider body comprises an upper shipboard 2, a lower shipboard 3 and a connecting column. The upper shipboard 2 and the lower shipboard 3 are arranged in parallel. Two ends of the connecting column are respectively connected to the upper shipboard 2 and the lower shipboard 3.

[0022] The pull nose 1 is in the shape of an arch bridge, and rounded corner structures 4 are provided on both sides of the upper surface of the pull nose 1. This structure makes the pull nose more rounded as a whole.

[0023] The pull nose 1 is arranged on the upper plate 2. The pull nose 1 and the upper plate 2 are integrally formed and both ends of the pull nose 1 are connected to the upper plate 2. Specifically, the pull nose 1 and the upper plate 2 can both be made of metal or plastic. A through hole 5 is provided at the front end of the pull nose 1. The through hole 5 is opened along the length direction of the slider body. An inner arc surface 6 is provided on the inner side surface of the front end of the pull nose 1, wherein the inner side surface of the pull nose 1 refers to the side of the pull nose 1 facing the upper plate 2, and the front end of the pull nose 1 is the end of the pull nose 1 close to the connecting column.

[0024] Furthermore, the utility model is a one-piece perforated elephant trunk head and is also provided with a pull tab 7 or a pull rope (not shown in the figure). The pull tab 7 has a hanging rod. Both the pull tab and the pull rope are used to pull the utility model to slide on the zipper. The pull tab 7 or the pull rope is sleeved on the pull nose 1, and the pull rope of the hanging rod part is located between the pull nose 1 and the upper deck 2. Since both ends of the pull nose are connected to the upper deck 2, the pull tab in this embodiment can be directly injection molded on the pull nose using conventional injection molding, or a detachable pull tab in conventional technology can be used. When the pull rope scheme is adopted, the pull rope can be directly tied to the pull nose 1.

[0025] One end of the through hole 5 is located in the depression of the inner arc surface 6. The through hole 5 is usually formed by core pulling. The existing core pulling process easily forms burrs around the through hole. The situation where one end of the through hole 5 is located in the depression of the inner arc surface 6 is smaller than the situation where a section of the through hole is located on the vertical surface.

[0026] Preferably, a pull tab 7 or the pull rope can be selected with a thickness greater than the height of the through hole 5. This setting can make the pull tab 7 or the pull rope abut against the area of ​​the inner arc surface 6 that is higher than the recess, preventing the pull tab 7 or the pull rope from moving further toward the through hole 5, so that the pull rope or pull tab avoids burrs that may exist around the through hole 5.

[0027] Preferably, the maximum distance between the inner arc surface 6 and the upper shipboard is less than or equal to the thickness of the pull piece 7 or the pull rope.

[0028] As a preferred solution, the pull nose 1 has a tail 8 close to the rear end of the slider body, the tail 8 is a structure with a width gradually decreasing from top to bottom, the bottom of the tail 8 is a connecting section 9, and the connecting section 9 is connected to the upper deck 2.

[0029] A groove 10 is provided on the upper plate 2 , and the groove 10 is opened along the length direction of the slider, and the groove 10 is located just below the slider nose 1 .

[0030] The connecting section 9 is located in the groove 10. Preferably, the thickness of the connecting section 9 is less than or equal to the depth of the groove 10. This setting can make the connecting section hidden in the groove. From a horizontal perspective, the upper deck 2 blocks the groove 10 and the connecting section located in the groove 10, making the overall appearance of the utility model similar to that of the existing ordinary riveted perforated elephant trunk pull head.

[0031] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of these embodiments and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. In addition, the terms "first," "second," and the like are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features defined as "first," "second," and the like may explicitly or implicitly include one or more of such features.

[0032] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A one-piece perforated elephant trunk head, characterized by: The pull nose comprises a slider body and a pull nose, the slider body having an upper ship plate, a lower ship plate and a connecting column, the pull nose being arranged on the upper ship plate, the pull nose being integrally formed with the upper ship plate and both ends of the pull nose being connected to the upper ship plate, a through hole being provided at the front end of the pull nose, the through hole being provided along the length direction of the slider body, an inner arc surface being provided on the inner side surface of the front end of the pull nose, and one end of the through hole being located in a depression of the inner arc surface.

2. The one-piece perforated elephant trunk as claimed in claim 1, characterized in that: It also includes a pull tab or a pull rope, and the pull tab or the pull rope is sleeved on the pull nose.

3. The one-piece perforated elephant trunk as claimed in claim 1, characterized in that: The edges on both sides of the upper surface of the pull nose are provided with rounded corner structures.

4. The one-piece perforated elephant trunk as claimed in claim 2, characterized in that: The area of ​​the inner curved surface that is higher than the recess abuts against the pull tab or the pull rope.

5. The one-piece perforated elephant trunk as claimed in any one of claims 2 to 4, characterized in that: The pull nose has a connecting section close to the rear end of the slider body, and the connecting section is connected to the upper shipboard.

6. The one-piece perforated elephant trunk as claimed in claim 5, characterized in that: The upper board is provided with a groove.

7. The one-piece perforated elephant trunk as claimed in claim 6, characterized in that: The groove is opened along the length direction of the slider.

8. The one-piece perforated elephant trunk as claimed in claim 7, characterized in that: The groove is located just below the pull nose.

9. The one-piece perforated elephant trunk as claimed in claim 8, characterized in that: The connecting section is located in the groove.

10. The one-piece perforated elephant trunk as claimed in claim 9, characterized in that: The thickness of the connecting section is less than or equal to the depth of the groove.

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