Self-locking zipper puller

Abstract

The utility model relates to the technical field of zipper pullers, and discloses a self-locking zipper puller which comprises a supporting core, a lower locking plate and an upper locking plate are arranged on the upper portion and the lower portion of the supporting core respectively, a cavity is formed in the upper locking plate, a movable plate is arranged in the cavity, and clamping strips are fixedly connected to the lower side faces of the two ends of the movable plate. A through hole which penetrates through the upper locking plate and is matched with the clamping strip is formed in the bottom in the cavity, a plurality of springs are fixedly connected between the lower surface of the movable plate and the bottom in the cavity, a first sliding groove is formed in the upper surface of the movable plate, and a second sliding groove matched with the first sliding groove is formed in the upper surface of the upper locking plate; and a sliding seat is slidably connected in the first sliding groove and the second sliding groove. According to the zipper puller, through cooperation of the rotating column, the arc-shaped extrusion groove and the limiting groove, the movable plate is extruded to move upwards in an extrusion mode when the pull piece is pulled, the self-locking effect of the zipper puller can be achieved through cooperation of the spring, the movable plate and the clamping strip, the movable plate can be easily pulled to move when the pull piece is obliquely pulled, and the practicability of the zipper puller is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of zipper heads, in particular to a self-locking zipper head. Background Technique

[0002] The zipper head is used in cooperation with the zipper. By pulling the zipper head, the opening and closing of the zipper can be controlled. Zippers and zipper heads are widely used in luggage, clothes, etc. In daily life, due to the shaking of the zipper head and the extrusion of the internal items on the zipper, the zipper head will move on the zipper, resulting in the zipper being gradually opened, and it is necessary for personnel to manually close the zipper again.

[0003] After retrieval, for example, the patent with the patent publication number CN220109277U discloses a self-locking zipper head, which includes an upper locking plate. One side of the middle part of the top of the upper locking plate is rotatably connected with a pull tab. A cavity is arranged in the middle of the upper locking plate. The other side of the bottom end of the pull tab penetrates through the other side of the middle part of the top of the upper locking plate and extends into the cavity. The other side of the bottom end of the pull tab is fixedly connected with a cross bar. A pin is fixedly connected to both sides of the cross bar. A compression spring is arranged at the lower part of the other side of the pull tab. A return spring is fixedly connected to both sides of the bottom end of the cross bar. The ends of the return springs far away from the cross bar are respectively fixedly connected to both sides of the bottom end of the cavity. In this utility model, with the mutual cooperation of the compression spring, the return spring and the pin, the pin can be clamped in the gap of the zipper, so as to avoid the zipper head from slipping when the two sides of the zipper are subjected to an external force pulling outward, thereby causing the teeth on both sides of the zipper to be separated from each other, and the zipper is accidentally opened, affecting the use.

[0004] The above patent has obvious beneficial effects, but there are still the following deficiencies in actual operation:

[0005] In the above comparative document, through the cooperation of the spring, the cross bar and the pin, the pin locks the zipper when the zipper is not in use. In actual operation, in the above comparative document, when the zipper needs to be pulled, the pull tab is pulled to drive the pin to move. Since the pull tab moves vertically in the cavity, at this time, the pull tab and the pull tab need to be perpendicular to each other to easily pull the pull tab. Under normal circumstances, the direction in which people pull the pull tab is towards the direction of the zipper. Therefore, when the pulled pull tab is parallel or inclined to the zipper, it is very difficult to pull the pull tab, reducing the practicability. Therefore, it is urgent in this field to improve the self-locking zipper head to solve the defects of the existing technology. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the utility model provides a self-locking zipper head to improve the practicability of the zipper head.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A self-locking zipper head, including a support core, with a lower locking plate and an upper locking plate respectively arranged above and below the support core. A cavity is provided inside the upper locking plate. A moving plate is arranged inside the cavity. At the lower sides of both ends of the moving plate, clamping strips are fixedly connected. A through hole that penetrates the upper locking plate and is adapted to the clamping strips is provided at the bottom inside the cavity. A plurality of springs are fixedly connected between the lower surface of the moving plate and the bottom inside the cavity. A first sliding groove is provided on the upper surface of the moving plate. A second sliding groove adapted to the first sliding groove is provided on the upper surface of the upper locking plate. A sliding seat is slidably connected in the first sliding groove and the second sliding groove. Arc-shaped pressing grooves and linear limiting grooves are respectively provided on the opposite side walls inside the first sliding groove and the second sliding groove. Rotating columns adapted to the arc-shaped pressing grooves and the limiting grooves are provided on the opposite sides of the sliding seat. A pull tab is fixedly connected to the upper side of the sliding seat. A pull piece is sleeved on the pull tab.

[0008] Preferably, a guiding column is arranged inside the cavity, and the spring is sleeved on the side surface of the guiding column.

[0009] Preferably, a threaded hole is provided at the bottom inside the cavity, and the lower end of the guiding column is threadedly connected in the threaded hole.

[0010] Preferably, an opening groove communicating with the cavity is provided on the upper surface of the upper locking plate. A matching cover plate is installed in the opening groove through a fastener, and the second sliding groove is provided on the cover plate.

[0011] Preferably, a plurality of resistance strips are provided on both sides of the pull piece, and the resistance strips are arc-shaped.

[0012] Preferably, nameplate identification parts are provided on both sides of the pull piece.

[0013] Preferably, the rotating column located in the arc-shaped pressing groove is cylindrical and rotatably connected to the sliding seat, and the rotating column located in the limiting groove is rectangular.

[0014] Aiming at the deficiencies of the prior art, the present utility model provides a self-locking zipper head, which overcomes the deficiencies of the prior art. The beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, through the cooperation of the rotating column, the arc-shaped pressing groove and the limiting groove, when pulling the pull piece, the moving plate is extruded and lifted by the extrusion method. Cooperating with the spring, the moving plate and the clamping strips, the self-locking effect of the zipper head can be realized. When the pull piece is pulled obliquely, the moving plate can also be easily pulled to move, improving the practicability of the zipper head.

[0016] 2. In the present utility model, the guiding column prevents the spring from deforming radially. At the same time, the guiding column penetrates the moving plate to limit the moving track of the moving plate, improving the service life of the overall zipper head.

[0017] 3. In the present utility model, by providing a cover plate, it is convenient to assemble the parts in the cavity and to produce the overall zipper head. The cover plate is installed in the opening groove through fasteners. In the later stage, if the parts in the cavity are damaged, it is also convenient to maintain them.

[0018] Other features and advantages of the present utility model will be described in the subsequent specification. And, partly, they will become obvious from the specification or be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the specification, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the overall partial section of the present utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the moving plate in the present utility model;

[0023] Figure 4 is Figure 2 the enlarged schematic diagram of part A in

[0024] Figure 5 is Figure 2 the enlarged schematic diagram of part B in

[0025] Figure 6 is Figure 3 the enlarged schematic diagram of part C in

[0026] In the figure: 1, support core; 2, lower lock plate; 3, upper lock plate; 4, cavity; 5, moving plate; 6, clamping strip; 7, through hole; 8, spring; 9, first sliding groove; 10, second sliding groove; 11, arc-shaped extrusion groove; 12, sliding seat; 13, pull nose; 14, rotating column; 15, limiting groove; 16, pull tab; 17, guiding column; 18, threaded hole; 19, opening groove; 20, cover plate; 21, resistance strip; 22, nameplate identification part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] Embodiment 1

[0029] Please refer to Figures 1-6 , a self-locking zipper head, including a core 1. A lower lock plate 2 and an upper lock plate 3 are respectively arranged above and below the core 1. A cavity 4 is formed in the upper lock plate 3. A moving plate 5 is arranged in the cavity 4. Clamping bars 6 are fixedly connected to the lower sides of both ends of the moving plate 5. A through hole 7 that penetrates the upper lock plate 3 and is adapted to the clamping bar 6 is formed at the bottom of the cavity 4. A plurality of springs 8 are fixedly connected between the lower surface of the moving plate 5 and the bottom of the cavity 4. A first sliding groove 9 is formed on the upper surface of the moving plate 5. A second sliding groove 10 adapted to the first sliding groove 9 is arranged on the upper surface of the upper lock plate 3. A sliding seat 12 is slidably connected in the first sliding groove 9 and the second sliding groove 10. Arc-shaped extrusion grooves 11 and linear limiting grooves 15 are respectively formed on the opposite side walls in the first sliding groove 9 and the second sliding groove 10. Rotating columns 14 adapted to the arc-shaped extrusion grooves 11 and the limiting grooves 15 are arranged on the opposite sides of the sliding seat 12. A pull tab 13 is fixedly connected to the upper side of the sliding seat 12. A pull piece 16 is sleeved on the pull tab 13. The rotating column 14 located in the arc-shaped extrusion groove 11 is cylindrical and rotatably connected to the sliding seat 12. The rotating column 14 located in the limiting groove 15 is rectangular.

[0030] Specific implementation method in this embodiment: The spring 8 always has a pulling force on the moving plate 5. When the pull piece 16 is not pulled, one end of the clamping bar 6 extends beyond the lower surface of the upper lock plate 3, and one end of the clamping bar 6 clamps the zipper to lock the whole zipper head. When it is necessary to pull the zipper head, by pulling the pull piece 16, the pull piece 16 drives the pull tab 13 to move when being pulled. The pull tab 13 drives the sliding seat 12 to move in the second sliding groove 10 and the first sliding groove 9. The rectangular rotating column 14 slides in the limiting groove 15, and the moving position of the sliding seat 12 is limited by the rectangular rotating column 14 in the adapted limiting groove 15. At the same time, the cylindrical rotating column 14 slides in the arc-shaped extrusion groove 11. The arc-shaped extrusion groove 11 is in an inverted V shape, and the distance between the two groups of rotating columns 14 is fixed. When the sliding seat 12 moves, the cylindrical rotating column 14 will squeeze the arc-shaped extrusion groove 11, thereby forcing the moving plate 5 to move upward in the cavity 4. After the moving plate 5 moves upward, it drives the clamping bar 6 to move upward in the through hole 7. The clamping bar 6 is disengaged from the limit of the zipper, and then the whole zipper head can be pulled. When the pull piece 16 is released, the pulling force of the spring 8 pulls the moving plate 5 to move downward again, and the two clamping bars 6 are clamped on the zipper through the through hole 7 again to achieve the self-locking effect of the zipper head. By squeezing the moving plate 5 to move upward in an extrusion manner, the moving plate 5 can also be easily pulled to move when the pull piece 16 is pulled obliquely, improving the practicability of this zipper head.

[0031] Embodiment 2

[0032] Please refer to Figure 3 and Figure 5, this embodiment includes the above embodiment, and further includes: a guide post 17 is provided in the cavity 4, a spring 8 is sleeved on the side of the guide post 17, a threaded hole 18 is opened at the bottom inside the cavity 4, and the lower end of the guide post 17 is threadedly connected in the threaded hole 18.

[0033] Specific implementation in this embodiment: The spring 8 is sleeved on the side of the adapted guide post 17. The guide post 17 prevents the spring 8 from undergoing radial deformation. At the same time, the guide post 17 penetrates the moving plate 5 to limit the moving trajectory of the moving plate 5, improving the service life of the overall zipper head. When installing the guide post 17, one end of the guide post 17 is passed through the moving plate 5 and threadedly connected to the threaded hole 18 to install it, which is convenient for assembling it.

[0034] Embodiment Three

[0035] Please refer to Figure 1 、 Figure 2 and Figure 6 , this embodiment includes all the above embodiments, and further includes: an opening groove 19 communicating with the cavity 4 is opened on the upper surface of the upper locking plate 3, a matching cover plate 20 is installed in the opening groove 19 through a fastener, a second sliding groove 10 is opened on the cover plate 20, a plurality of resistance strips 21 are provided on both sides of the pull tab 16, the resistance strips 21 are arc-shaped, and a nameplate identification part 22 is provided on both sides of the pull tab 16.

[0036] Specific implementation in this embodiment: By providing the cover plate 20, it is convenient to assemble the parts in the cavity 4 and convenient for the production of the overall zipper head. The cover plate 20 is installed in the opening groove 19 through a fastener. If the parts in the cavity 4 are damaged later, it is also convenient to maintain them. The resistance strips 21 increase the friction when people pinch the pull tab 16, which is convenient for pulling the pull tab 16. The nameplate identification part 22 is used for printing or pasting a nameplate.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A self-locking zipper head, comprising a support core (1), with a lower lock plate (2) and an upper lock plate (3) respectively arranged above and below the support core (1), characterized in that, A cavity (4) is formed in the upper locking plate (3). A moving plate (5) is arranged in the cavity (4). Clamping strips (6) are fixedly connected to the lower side surfaces at both ends of the moving plate (5). A through hole (7) penetrating through the upper locking plate (3) and adapted to the clamping strip (6) is formed in the inner bottom of the cavity (4). A plurality of springs (8) are fixedly connected between the lower surface of the moving plate (5) and the inner bottom of the cavity (4). A first sliding groove (9) is formed in the upper surface of the moving plate (5). A second sliding groove (10) adapted to the first sliding groove (9) is arranged on the upper surface of the upper locking plate (3). A sliding seat (12) is slidably connected in the first sliding groove (9) and the second sliding groove (10). Arc-shaped pressing grooves (11) and linear limiting grooves (15) are respectively formed in the opposite side walls in the first sliding groove (9) and the second sliding groove (10). Rotating columns (14) adapted to the arc-shaped pressing grooves (11) and the limiting grooves (15) are arranged on the opposite side surfaces of the sliding seat (12). A pull nose (13) is fixedly connected to the upper side surface of the sliding seat (12). A pull tab (16) is sleeved on the pull nose (13).

2. The self-locking zipper head according to claim 1, characterized in that, A guiding column (17) is arranged in the cavity (4). The spring (8) is sleeved on the side surface of the guiding column (17).

3. A self-locking zipper head according to claim 2, wherein, A threaded hole (18) is formed in the inner bottom of the cavity (4). The lower end of the guiding column (17) is threadedly connected in the threaded hole (18).

4. A self-locking zipper head according to claim 1, characterized in that, An opening groove (19) communicating with the cavity (4) is formed in the upper surface of the upper locking plate (3). A matching cover plate (20) is installed in the opening groove (19) through a fastener. The second sliding groove (10) is formed in the cover plate (20).

5. A self-locking zipper head according to claim 1, characterized in that, A plurality of resistance strips (21) are arranged on both sides of the pull tab (16). The resistance strips (21) are arc-shaped.

6. The self-locking zipper head according to claim 1, characterized in that, Nameplate marking parts (22) are arranged on both sides of the pull tab (16).

7. A self-locking zipper head according to claim 1, characterized in that, The rotating column (14) located in the arc-shaped pressing groove (11) is cylindrical and rotatably connected to the sliding seat (12). The rotating column (14) located in the limiting groove (15) is rectangular.

Images