A fast replaceable zipper head

Abstract

The utility model belongs to the technical field of zipper, concretely relates to a quick replacement zipper head, including upper wing board, lower wing board and positioning piece, the upper wing board sets up at the top of lower wing board, one end of upper wing board is provided with through -hole and avoidance slot, the avoidance slot is located the circumference of through -hole, just with through -hole intercommunication, one end of lower wing board is provided with screw buckle part, the screw buckle part is away from one end of lower wing board and is worn in through -hole, just staggered with avoidance slot setting, positioning piece is worn in avoidance slot, positioning piece with screw buckle part joint, when replacing zipper head, need not to remove cloth tape's lock edge, only need to quit positioning piece from avoidance slot, rotate and separate upper wing board and lower wing board, can take off old zipper head from chain tooth, again reverse operation installs new zipper head on chain tooth, has saved the cumbersome step of taking off line, sewing line, need not professional technique and tool, improves replacement efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of zipper technology, specifically relating to a quick-change zipper head. Background Technology

[0002] Zippers have a wide range of applications, commonly found in bags, clothing, footwear, and other products. A zipper consists of a fabric strip with interlocking teeth and a zipper pull. The fabric strip is fixed to the product, and the zipper pull is pulled to open or close the zipper.

[0003] Currently, existing detachable zipper pulls generally only allow for the removal of the zipper tab, not the separation of the upper and lower flaps, which are integrally molded. Replacing these zipper pulls requires removing the overlock seam at the end of the fabric strip containing the zipper teeth, installing the new zipper pull, and then sewing it back together. This process of removing and sewing requires skill and time, making it very inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-replacement zipper head to address the shortcomings of the existing technology. This solves the technical problem that in the existing technology, the upper and lower zipper plates are integrally molded, requiring the removal and sewing of the overlock edge during replacement. This process is technically demanding, time-consuming, and extremely inconvenient.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a quick-change zipper pull, including an upper wing plate, a lower wing plate, and a positioning member. The upper wing plate is disposed above the lower wing plate. One end of the upper wing plate is provided with a through hole and a clearance groove. The clearance groove is located around the through hole and communicates with the through hole. One end of the lower wing plate is provided with a snap fastener. The end of the snap fastener away from the lower wing plate passes through the through hole and is offset from the clearance groove. The positioning member passes through the clearance groove and engages with the snap fastener.

[0007] In some embodiments, the through hole includes a locking section and a compression section connected together. The locking section is located on the side of the upper wing plate away from the lower wing plate. The swivel part includes a first body and a barb. One end of the first body is connected to the lower wing plate, and the barb is connected to the other end of the first body. The barb is disposed in the locking section, and the end face of the other end of the first body abuts against the bottom surface of the lower wing plate.

[0008] In some embodiments, the locking segment is a tapered segment that expands from the compression segment toward the side of the upper wing away from the lower wing, and the barb is disposed on the tapered surface of the tapered segment;

[0009] Alternatively, the through hole is a stepped hole, and a stepped surface connects the locking section and the compression section, with the barb disposed on the stepped surface.

[0010] In some embodiments, the positioning member includes a second body, a first spring arm, and a second spring arm. The first spring arm and the second spring arm are disposed opposite to each other and are both inserted through the clearance groove. One end of the first spring arm and one end of the second spring arm are both connected to the second body. A clamping space is formed between the other ends of the first spring arm and the other ends of the second spring arm, and the first body is located in the clamping space.

[0011] In some embodiments, the other end of the first spring arm and the other end of the second spring arm are provided with protrusions, and the first main body is provided with an opening, wherein the protrusions are engaged with the opening.

[0012] In some embodiments, the upper end of the barb is provided with a groove, and the second main body portion is disposed within the groove.

[0013] In some embodiments, a latch is also included, wherein the positioning member is provided with a through hole, the latch portion is provided with a slot, the through hole corresponds to the position of the slot, one end of the latch passes through the through hole and is disposed in the slot, and one end of the latch is engaged with the slot.

[0014] In some embodiments, the latch includes a third body and a locking bolt. One end of the third body passes through the through hole and is disposed in the slot. A first elastic element is connected between one end of the third body and the slot. A bolt groove is provided at one end of the third body. A second elastic element is disposed in the bolt groove. One end of the second elastic element near the opening of the bolt groove is connected to one end of the locking bolt. The other end of the locking bolt has a downward-facing bevel. A locking groove matching the locking bolt is provided on the side wall of the slot. When the latch engages with the slot, the locking bolt is at least partially located in the locking groove.

[0015] In some embodiments, the top of the positioning member is provided with a cylindrical body, the cylindrical body is provided with a connecting hole, the connecting hole is connected to the through hole, the end of the cylindrical body away from the positioning member is provided with a cover, the cover is threadedly connected to the cylindrical body, the other end of the third body passes through the connecting hole and the cover in sequence, and extends to the side of the cover away from the cylindrical body, the other end of the third body is threadedly connected to the cover.

[0016] In some embodiments, a pull tab is connected to the other end of the third body.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0018] This utility model's quick-change zipper head, through the coordinated use of an upper wing plate, a lower wing plate, and a positioning component, allows the hook portion of the lower wing plate to pass through the through hole of the upper wing plate via a clearance groove. Rotating the upper wing plate or the hook portion offsets the hook portion from the clearance groove, effectively achieving pre-installation of the upper and lower wing plates. The positioning component passes through the clearance groove and engages with the hook portion, effectively restricting the rotation of the hook portion and achieving locking of the upper and lower wing plates, thus improving the connection stability between them. The clearance groove not only provides clearance for the hook portion to pass through the through hole but also, in conjunction with the positioning component, provides a positioning reference for the hook portion, effectively ensuring the upper and lower wing plates are aligned and installed, guaranteeing the accuracy and reliability of the zipper head's final working state. Meanwhile, since the upper and lower wing plates can be separated, when replacing the zipper head, there is no need to remove the selvage of the fabric tape. Simply remove the positioning piece from the clearance groove, rotate and separate the upper and lower wing plates, and the old zipper head can be removed from the zipper teeth. Then, reverse the operation to install the new zipper head on the zipper teeth. This eliminates the tedious steps of removing and sewing, requires no professional skills or tools, and improves replacement efficiency.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an existing zipper.

[0022] Figure 2 A schematic diagram of the structure of a zipper head using existing technology.

[0023] Figure 3 This is one of the structural schematic diagrams of the zipper head of this utility model.

[0024] Figure 4 for Figure 2 A magnified structural diagram of point A in the middle.

[0025] Figure 5 This is the second schematic diagram of the zipper head of this utility model.

[0026] Figure 6 for Figure 5 A magnified structural diagram at point B in the middle.

[0027] Figure 7 This is the third schematic diagram of the zipper head of this utility model.

[0028] The reference numerals in the attached figures are explained as follows:

[0029] 100. Zipper pull;

[0030] 10. Upper flange; 11. Through hole; 111. Locking section; 112. Compression section; 12. Clearance groove;

[0031] 20. Lower wing plate; 21. Hook and loop part; 211. First main body; 212. Barb; 213. Opening; 214. Groove; 215. Slot; 216. Lock groove;

[0032] 30. Positioning component; 31. Second body; 32. First spring arm; 33. Second spring arm; 34. Protrusion; 35. Perforation; 36. Cylinder; 361. Connecting hole;

[0033] 40. Lock; 41. Third body; 42. Locking bolt; 421. Inclined surface; 43. First elastic element; 44. Bolt groove; 45. Second elastic element;

[0034] 50. Cover;

[0035] 60. Film analysis. Detailed Implementation

[0036] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0037] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The following will be combined with the appendix Figures 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0040] Please see Figures 1-7 The quick-change zipper head 100 of this utility model embodiment includes an upper wing plate 10, a lower wing plate 20, and a positioning member 30. The upper wing plate 10 is disposed above the lower wing plate 20. One end of the upper wing plate 10 is provided with a through hole 11 and a relief groove 12. The relief groove 12 is located around the through hole 11 and communicates with the through hole 11. One end of the lower wing plate 20 is provided with a snap fastener 21. The end of the snap fastener 21 away from the lower wing plate 20 passes through the through hole 11 and is offset from the relief groove 12. The positioning member 30 passes through the relief groove 12 and engages with the snap fastener 21.

[0041] Compared with the prior art, the quick-change zipper head 100 of this utility model uses the cooperation of the upper wing plate 10, the lower wing plate 20 and the positioning member 30. The snap fastener 21 of the lower wing plate 20 passes through the through hole 11 of the upper wing plate 10 through the relief groove 12. By rotating the upper wing plate 10 or the snap fastener 21, the snap fastener 21 is offset from the relief groove 12, which effectively realizes the pre-installation of the upper wing plate 10 and the lower wing plate 20. The positioning member 30 passes through the relief groove 12 and engages with the snap fastener 21, which effectively restricts the rotation of the snap fastener 21, realizes the locking of the upper wing plate 10 and the lower wing plate 20, and improves the connection stability between the upper wing plate 10 and the lower wing plate 20. The recessed groove 12 not only provides clearance for the snap fastener 21 to pass through the through hole 11, but also works with the positioning element 30 to provide a positioning reference for the snap fastener 21. This effectively ensures that the upper wing plate 10 and the lower wing plate 20 can be aligned and installed, guaranteeing the accuracy and reliability of the zipper head 100 in its final working state. Furthermore, since the upper wing plate 10 and the lower wing plate 20 are separable, when replacing the zipper head 100, it is not necessary to remove the selvage edge of the fabric tape. Simply remove the positioning element 30 from the recessed groove 12, rotate and separate the upper wing plate 10 and the lower wing plate 20, and the old zipper head 100 can be removed from the zipper teeth. Then, the new zipper head 100 can be installed on the zipper teeth in reverse. This eliminates the tedious steps of removing and sewing threads, requires no professional skills or tools, and improves replacement efficiency.

[0042] In some embodiments, the through hole 11 includes a locking section 111 and a compression section 112 connected together. The locking section 111 is located on the side of the upper wing plate 10 away from the lower wing plate 20. The zipper pull 21 includes a first body 211 and a barb 212. One end of the first body 211 is connected to the lower wing plate 20, and the barb 212 is connected to the other end of the first body 211. The barb 212 is disposed in the locking section 111, and the end face of the other end of the first body 211 abuts against the bottom surface of the lower wing plate 20. Through the cooperative use of the locking section 111, the compression section 112, the first body 211, and the barb 212, the barb 212 is disposed in the locking section 111 of the upper wing plate 10, and the end face of the other end of the first body 211 abuts against the bottom surface of the lower wing plate 20, effectively limiting the upper wing plate 10, controlling the distance between the upper wing plate 10 and the lower wing plate 20, and ensuring the structural stability of the zipper pull 100.

[0043] In some embodiments, the locking section 111 is a tapered section that expands from the self-compression section 112 towards the side of the upper wing plate 10 away from the lower wing plate 20, and the barb 212 is disposed on the tapered surface of the tapered section; or, the through hole 11 is a stepped hole, and a stepped surface connects the locking section 111 and the compression section 112, with the barb 212 disposed on the stepped surface. The inclined surface 421 structure of the tapered section expanding upward from the self-compression section 112 can provide a guide channel for the barb 212. When the buckle part 21 passes through the through hole 11 from bottom to top, the barb 212 can slide naturally into the locking section 111 along the inclined surface 421 without deliberate alignment, reducing the difficulty of alignment during installation. Through the setting of the stepped surface, the stepped surface can provide planar support for the barb 212. When the zipper head 100 is subjected to tension, the vertical surface of the stepped surface can withstand a large tension, preventing the barb 212 from coming out of the through hole 11.

[0044] In some embodiments, the positioning member 30 includes a second body 31, a first spring arm 32, and a second spring arm 33. The first spring arm 32 and the second spring arm 33 are arranged opposite to each other and both spring arms 32 and 33 pass through the clearance groove 12. One end of the first spring arm 32 and one end of the second spring arm 33 are connected to the second body 31, and a clamping space is formed between the other ends of the first spring arm 32 and the second spring arm 33. The first body 211 is located in the clamping space. Through the cooperative use of the second body 31, the first spring arm 32, and the second spring arm 33, the clamping space formed by the first spring arm 32 and the second spring arm 33 can effectively clamp the first body 211. The elastic tension of the first spring arm 32 and the second spring arm 33 themselves can achieve adaptive clamping, which will not cause the first body 211 to shake due to excessive clamping, nor will it damage the first body 211 due to rigid compression, ensuring stable connection and protecting the component. At the same time, the first spring arm 32 and the second spring arm 33 are arranged opposite to each other and synchronously pass through the clearance groove 12, which can provide bidirectional symmetrical positioning for the first body 211. During installation, there is no need for repeated adjustments. The first main body 211 can be directly aligned with the center of the clamping space, avoiding the offset of the swivel part 21 due to unilateral positioning deviation, and ensuring the fastening accuracy of the upper wing plate 10 and the lower wing plate 20.

[0045] In some embodiments, a protrusion 34 is provided at the other end of the first spring arm 32 and the other end of the second spring arm 33, and an opening 213 is provided on the first main body 211, with the protrusion 34 engaging with the opening 213. Through the cooperative use of the protrusion 34 and the opening 213, both the first spring arm 32 and the second spring arm 33 are engaged with the opening 213 of the first main body 211 via the protrusion 34, effectively avoiding repeated adjustments due to inaccurate installation positions and effectively improving the connection stability between the positioning member 30 and the snap fastener 21. Simultaneously, no additional tools or complex operating steps are required during installation, making the installation process simpler and faster.

[0046] In some embodiments, the upper end of the barb 212 is provided with a groove 214, and the second body 31 is disposed within the groove 214. By providing the groove 214, when the second body 31 is disposed within the groove 214, the positioning member 30 and the snap fastener 21 mutually constrain each other, thereby enhancing the connection stability between the positioning member 30 and the snap fastener 21 and effectively preventing loosening or detachment during use. Simultaneously, the groove 214 provides accommodating space for the second body 31, effectively reducing the space occupied by the positioning member 30 in the height direction, reducing unnecessary gaps and redundant parts, and improving space utilization.

[0047] In some embodiments, the zipper head 100 further includes a latch 40, a through hole 35 on the positioning member 30, and a slot 215 on the snap fastener 21. The through hole 35 and the slot 215 are positioned correspondingly. One end of the latch 40 passes through the through hole 35 and is disposed in the slot 215, and the other end of the latch 40 is engaged with the slot 215. Through the cooperative use of the latch 40, the through hole 35, and the slot 215, the latch 40 passes through the through hole 35 of the positioning member 30 and is engaged in the slot 215 of the snap fastener 21, effectively improving the connection between the positioning member 30 and the snap fastener 21 and preventing loosening or separation between the positioning member 30 and the snap fastener 21.

[0048] In some embodiments, the latch 40 includes a third body 41 and a locking bolt 42. One end of the third body 41 passes through the through hole 35 and is disposed in the slot 215. A first elastic member 43 is connected between one end of the third body 41 and the slot 215. A bolt groove 44 is provided at one end of the third body 41. A second elastic member 45 is provided in the bolt groove 44. One end of the second elastic member 45 near the opening of the bolt groove 44 is connected to one end of the locking bolt 42. The other end of the locking bolt 42 has a downward-facing bevel 421. A locking groove 216 matching the locking bolt 42 is provided on the side wall of the slot 215. When the latch 40 is engaged with the slot 215, the locking bolt 42 is at least partially located in the locking groove 216.

[0049] When the third body 41 is inserted into the slot 215, the inclined surface 421 contacts and is compressed against the side wall of the slot 215. The locking bolt 42 compresses the second elastic element 45 into the bolt groove 44. When the bolt groove 44 aligns with the locking groove 216, the second elastic element 45 resets and pushes the locking bolt 42 out, causing it to at least partially engage with the locking groove 216, effectively locking the latch 40 to the slot 215. When the third body 41 continues to compress the first elastic element 43 downwards, the inclined surface 421 again contacts and is compressed against the side wall of the slot 215. The locking bolt 42 compresses the second elastic element 45 into the bolt groove 44. Rotating the third body 41 and releasing it causes the first elastic element 43 to automatically reset, effectively releasing the latch 40. The operation is simple and improves installation efficiency.

[0050] In some embodiments, a cylindrical body 36 is provided on the top of the positioning member 30, and a connecting hole 36111 is provided inside the cylindrical body 36, which communicates with the through hole 35. A cover 50 is provided at the end of the cylindrical body 36 away from the positioning member 30, and the cover 50 is threadedly connected to the cylindrical body 36. The other end of the third body 41 passes through the connecting hole 36111 and the cover 50 in sequence, and extends towards the side of the cover 50 away from the cylindrical body 36. The other end of the third body 41 is threadedly connected to the cover 50. Through the cooperative use of the cylindrical body 36 and the cover 50, both the cylindrical body 36 and the third body 41 are threadedly connected to the cover 50, effectively preventing the third body 41 from moving upward due to accidental pressing of the latch 40, ensuring that the latch 40 and the slot 215 are always in a precise position, and avoiding locking failure due to loose parts.

[0051] In some embodiments, a pull tab 60 is connected to the other end of the third body 41. The pull tab 60 allows the zipper head 100 to be moved during use. Simultaneously, when installing or removing the latch 40, the pull tab 60 provides a handheld area, increasing the operating area compared to directly operating the small end of the third body 41, making operation more effortless and precise.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A quick-change zipper pull, characterized in that: The device includes an upper wing plate (10), a lower wing plate (20), and a positioning member (30). The upper wing plate (10) is disposed above the lower wing plate (20). One end of the upper wing plate (10) is provided with a through hole (11) and a clearance groove (12). The clearance groove (12) is located at the periphery of the through hole (11) and communicates with the through hole (11). One end of the lower wing plate (20) is provided with a swivel part (21). The end of the swivel part (21) away from the lower wing plate (20) passes through the through hole (11) and is offset from the clearance groove (12). The positioning member (30) passes through the clearance groove (12) and is engaged with the swivel part (21).

2. The quick-change zipper pull as described in claim 1, characterized in that: The through hole (11) includes a locking section (111) and a compression section (112). The locking section (111) is located on the side of the upper wing plate (10) away from the lower wing plate (20). The screw fastener (21) includes a first body (211) and a barb (212). One end of the first body (211) is connected to the lower wing plate (20), and the barb (212) is connected to the other end of the first body (211). The barb (212) is disposed on the locking section (111), and the end face of the other end of the first body (211) abuts against the bottom surface of the lower wing plate (20).

3. The quick-change zipper pull as described in claim 2, characterized in that: The locking section (111) is a tapered section that expands from the compression section (112) toward the side of the upper wing plate (10) away from the lower wing plate (20), and the barb (212) is provided on the tapered surface of the tapered section; Alternatively, the through hole (11) is a stepped hole, and a stepped surface connects the locking section (111) and the compression section (112), with the barb (212) disposed on the stepped surface.

4. The quick-change zipper pull as described in claim 2, characterized in that: The positioning component (30) includes a second body (31), a first spring arm (32), and a second spring arm (33). The first spring arm (32) and the second spring arm (33) are arranged opposite to each other. The first spring arm (32) and the second spring arm (33) are both inserted through the clearance groove (12). One end of the first spring arm (32) and one end of the second spring arm (33) are connected to the second body (31). A clamping space is formed between the other end of the first spring arm (32) and the other end of the second spring arm (33). The first body (211) is located in the clamping space.

5. The quick-change zipper pull as described in claim 4, characterized in that: The other end of the first spring arm (32) and the other end of the second spring arm (33) are provided with protrusions (34), and the first main body (211) is provided with an opening (213), and the protrusions (34) are engaged with the opening (213).

6. The quick-change zipper pull as described in claim 4, characterized in that: The upper end of the barb (212) is provided with a groove (214), and the second main body (31) is disposed in the groove (214).

7. The quick-change zipper pull as described in any one of claims 1 to 6, characterized in that: It also includes a latch (40), the positioning member (30) is provided with a through hole (35), the screw fastener (21) is provided with a slot (215), the through hole (35) and the slot (215) are positioned correspondingly, one end of the latch (40) passes through the through hole (35) and is disposed in the slot (215), and one end of the latch (40) is engaged with the slot (215).

8. The quick-change zipper pull as described in claim 7, characterized in that: The latch (40) includes a third body (41) and a locking bolt (42). One end of the third body (41) passes through the through hole (35) and is disposed in the slot (215). A first elastic element (43) is connected between one end of the third body (41) and the slot (215). A bolt groove (44) is provided at one end of the third body (41). A second elastic element (45) is provided in the bolt groove (44). One end of the second elastic element (45) near the opening of the bolt groove (44) is connected to one end of the locking bolt (42). The other end of the locking bolt (42) has a downward inclined surface (421). The side wall of the slot (215) is provided with a locking groove (216) that matches the locking bolt (42). When the latch (40) is engaged with the slot (215), the locking bolt (42) is at least partially located in the locking groove (216).

9. The quick-change zipper pull as described in claim 8, characterized in that: The top of the positioning member (30) is provided with a cylindrical body (36), and a connecting hole (36111) is provided inside the cylindrical body (36). The connecting hole (36111) is connected to the through hole (35). A cover (50) is provided at one end of the cylindrical body (36) away from the positioning member (30). The cover (50) is threadedly connected to the cylindrical body (36). The other end of the third body (41) passes through the connecting hole (36111) and the cover (50) in sequence, and extends to the side of the cover (50) away from the cylindrical body (36). The other end of the third body (41) is threadedly connected to the cover (50).

10. The quick-change zipper pull as described in claim 8, characterized in that: The other end of the third body (41) is connected to a pull tab (60).

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