Zipper with fixable pull tab

Abstract

The utility model discloses a zipper with a fixable pull tab, which comprises a zipper head, a claw seat, a shaft seat and a hinge shaft, the claw seat and the shaft seat are respectively fixed on two sides of the top end of the zipper head, the hinge shaft is rotatably mounted in one end of the shaft seat far away from the claw seat, and a U-shaped pull rod is slidably mounted in the hinge shaft. The closed end of the U-shaped pull rod is used for being connected with the outer wall of one side of the claw base in a clamped mode when the U-shaped pull rod lies flat, and the end of the U-shaped pull rod penetrates out of the hinge shaft and is provided with an adjustable elastic structure. The U-shaped pull rod drives the hinge shaft to rotate until the closed end of the U-shaped pull rod is opposite to the cleat seat, a user loosens the U-shaped pull rod, the adjustable elastic structure resets, and the U-shaped pull rod and the cleat seat are clamped, so that the pull piece is quickly locked, and the user can conveniently and quickly lock the U-shaped pull rod on the zipper head.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, specifically to a zipper with a fixable pull tab. Background Technology

[0002] A zipper pull with a lockable tab is an innovative zipper design designed to improve zipper security and ease of use. It is widely used in backpacks, suitcases, tents, and clothing. Its main structure includes the zipper pull, locking mechanism, zipper tape, and guide rail. The zipper pull, typically made of metal or plastic, is the core of the user operation and features a pull tab for easy pulling. The locking mechanism is crucial to this design, usually employing a spring-loaded locking principle. This mechanism automatically locks the pull tab after the zipper pull has slid to a specific position, preventing accidental sliding under external force. For example, a zipper pull with a lockable tab disclosed in patent application CN222284856U includes an upper clip, with a post fixedly connected to the bottom of the upper clip, and a lower clip installed at the bottom of the post. A fixing block is fixedly connected to the top of the upper clip. A pull tab is installed on the outer wall of the fixing block, and a fixing structure is fixedly connected to the inner wall of the fixing block. Through the cooperation of spring, locking block, and fixing plate, after using the zipper, the fixing plate at one end of the pull tab is locked onto the outer wall of the locking block. The elasticity of the spring causes the locking block to fix the fixing plate, thus fixing the pull tab. However, in the use of the above technical solution, since the zipper head and pull tab are already small enough, using an even smaller fixing structure to fix or unlock the pull tab makes it quite troublesome for the user. For example, when the user tries to unlock the pull tab, they will find it difficult due to insufficient finger dexterity or limited vision, especially in environments with low light or insufficient hand dexterity. It may even damage the zipper due to improper operation. Utility Model Content

[0003] The purpose of this invention is to provide a zipper with a lockable pull tab. When the user pulls the U-shaped lever, the adjustable elastic structure collapses, causing the U-shaped lever to rotate the hinge shaft until the closed end of the U-shaped lever is aligned with the horn seat. When the user releases the U-shaped lever, the adjustable elastic structure resets, and the U-shaped lever and horn seat engage, quickly locking the pull tab and thus solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a zipper with a fixable pull tab, comprising a zipper head, ram's horn bases fixed on both sides of the top of the zipper head, a shaft base, and a hinge shaft internally mounted on the end of the shaft base away from the ram's horn base. A U-shaped pull rod is slidably mounted inside the hinge shaft. The closed end of the U-shaped pull rod is used to engage with one side of the outer wall of the ram's horn base when the U-shaped pull rod is lying flat. The end of the U-shaped pull rod extends through to the outside of the hinge shaft and is equipped with an adjustable elastic structure.

[0005] Preferably, both sides of the top of the zipper head are provided with notches for the U-shaped pull rod to swing around the hinge axis.

[0006] Preferably, a groove is provided on the outer wall of the ram's horn seat on the side away from the shaft seat.

[0007] Preferably, the hinge shaft has a flat portion on both its left and right outer walls.

[0008] Preferably, the adjustable elastic structure consists of a rear nut, a helical spring, and a front nut. The rear nut and the front nut are respectively threaded onto both ends of the surface of the U-shaped tie rod, and the helical spring is fitted onto the outer circumference of the U-shaped tie rod between the rear nut and the hinge shaft.

[0009] Preferably, the U-shaped tie rod is made of a hard plastic material.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This zipper with a lockable pull tab utilizes a structure comprising a zipper head, a horn seat, a shaft seat, a hinge shaft, and a U-shaped pull rod that work together. When the user pulls the U-shaped pull rod, the adjustable elastic structure collapses, causing the U-shaped pull rod to rotate the hinge shaft until the closed end of the U-shaped pull rod aligns with the horn seat. When the user releases the U-shaped pull rod, the adjustable elastic structure resets, and the U-shaped pull rod and horn seat engage, quickly locking the pull tab. This allows the user to easily lock the U-shaped pull rod onto the zipper head. The U-shaped pull rod design allows the user to lock and unlock the zipper with a simple pulling motion, eliminating the need for cumbersome steps or simultaneous use of multiple mechanisms. This tool allows for quick opening and closing of the U-shaped lever. In situations requiring rapid access to items, such as during travel, exercise, or daily commutes, users can complete the operation in a short time, saving time. Secondly, when the user pulls the U-shaped lever and the adjustable elastic structure collapses, the user can clearly feel the process and result of the operation. After the user releases the U-shaped lever, the reset action of the adjustable elastic structure immediately produces a locking effect. This instant feedback gives the user peace of mind, ensuring that the user trusts the stability and reliability of the locking mechanism. Finally, through the snap-fit ​​design between the U-shaped lever and the ram's horn, the user is assured of a secure lock on the U-shaped lever after completing the operation, preventing repeated bouncing of the U-shaped lever during user movement. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0015] Figure 5 This is a three-dimensional cross-sectional structural diagram of the present invention.

[0016] In the diagram: 1. Zipper head; 101. Notch; 2. Buckle seat; 201. Buckle groove; 3. Shaft seat; 4. Hinge shaft; 401. Flat part; 5. U-shaped pull rod; 6. Rear nut; 7. Coil spring; 8. Front nut. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5 The present invention provides an embodiment of a zipper with a fixed pull tab, comprising a zipper head 1, a ram's horn seat 2 and a shaft seat 3 fixed on both sides of the top of the zipper head 1 respectively, and a hinge shaft 4 rotatably mounted inside the shaft seat 3 away from the ram's horn seat 2. A U-shaped pull rod 5 is slidably mounted inside the hinge shaft 4. The closed end of the U-shaped pull rod 5 is used to engage with one side of the outer wall of the ram's horn seat 2 when the U-shaped pull rod 5 is lying flat. The U-shaped pull rod 5 is made of a hard plastic component, and the end of the U-shaped pull rod 5 extends through to the outside of the hinge shaft 4 and is equipped with an adjustable elastic structure.

[0019] Both sides of the top of the zipper head 1 are provided with notches 101 for the U-shaped pull rod 5 to swing around the hinge axis 4. When the U-shaped pull rod 5 swings around the hinge axis 4, the two notches 101 at the top of the zipper head 1 allow the U-shaped pull rod 5 to rotate freely, providing it with sufficient room for movement.

[0020] A latching groove 201 is provided on the outer wall of the ram's horn seat 2 away from the shaft seat 3. A flat part 401 is provided on both the left and right outer walls of the hinge shaft 4. The closed end of the U-shaped tie rod 5 is engaged with the latching groove 201 on the outer wall of the ram's horn seat 2, thereby providing a more stable fixing effect to ensure the stable connection between the U-shaped tie rod 5 and the ram's horn seat 2.

[0021] The adjustable elastic structure consists of a rear nut 6, a coil spring 7, and a front nut 8. The rear nut 6 and the front nut 8 are screwed onto the two ends of the surface of the U-shaped pull rod 5. The coil spring 7 is fitted on the outer circumference of the U-shaped pull rod 5 between the rear nut 6 and the hinge shaft 4. When operating the adjustable elastic structure, the U-shaped pull rod 5 drives the rear nut 6 to move towards the hinge shaft 4, and then the coil spring 7 is compressed. At this time, the front nut 8 will move away from the hinge shaft 4, and the U-shaped pull rod 5 and the horn seat 2 can be normally engaged.

[0022] When the closed end of the U-shaped pull rod 5 deflects around the hinge shaft 4 and is aligned with the buckle groove 201, the user releases the U-shaped pull rod 5, and the helical spring 7 elastically resets, causing the rear nut 6 to gradually move away from the hinge shaft 4 until the front nut 8 and the hinge shaft 4 come into contact, and then the U-shaped pull rod 5 and the buckle groove 201 complete the engagement.

[0023] In this embodiment, the user first pulls the U-shaped lever 5 with appropriate force. The pulling process will cause the adjustable elastic structure to collapse. The user must maintain a stable posture while pulling to avoid accidents caused by improper force. When the U-shaped lever 5 is pulled to its limit and cannot be pulled any further, the user causes the U-shaped lever 5 to rotate the hinge shaft 4, that is, the closed end of the U-shaped lever 5 swings downwards until the U-shaped lever 5 is in a parallel state. After confirming that the U-shaped lever 5 has been successfully pulled and is aligned with the horn seat 2, the user releases the U-shaped lever 5, and the adjustable... The elastic structure releases its elastic force, allowing the closed end of the U-shaped pull rod 5 to align with the ram's horn seat 2 until the closed end of the U-shaped pull rod 5 is fully engaged in the ram's horn seat 2. After completing the above operation, the U-shaped pull rod 5 can be gently pulled to confirm its stability. When the user needs to disconnect the ram's horn seat 2 and the U-shaped pull rod 5, the U-shaped pull rod 5 needs to be pulled to cause the adjustable elastic structure to collapse, allowing the closed end of the U-shaped pull rod 5 to be removed from the ram's horn seat 2. Then, the U-shaped pull rod 5 can be flipped downwards. At this time, the zipper head 1 can be pulled normally by the U-shaped pull rod 5 to open and close the zipper.

[0024] 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 illustrative 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. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A zipper with a fixed pull tab, characterized in that, It includes a zipper head (1), a ram's horn seat (2) fixed on both sides of the top of the zipper head (1), a shaft seat (3), and a hinge shaft (4) rotatably mounted inside the shaft seat (3) away from the ram's horn seat (2). A U-shaped pull rod (5) is slidably mounted inside the hinge shaft (4). The closed end of the U-shaped pull rod (5) is used to engage with the outer wall of one side of the ram's horn seat (2) when the U-shaped pull rod (5) is lying flat. The end of the U-shaped pull rod (5) extends through to the outside of the hinge shaft (4) and is equipped with an adjustable elastic structure.

2. The zipper with a fixable pull tab according to claim 1, characterized in that: Both sides of the top of the zipper head (1) are provided with notches (101) for the U-shaped pull rod (5) to swing around the hinge shaft (4).

3. A zipper with a fixable pull tab according to claim 1, characterized in that: The ram's horn seat (2) has a groove (201) on the outer wall of the side away from the shaft seat (3).

4. A zipper with a fixable pull tab according to claim 1, characterized in that: The hinge shaft (4) has a flat part (401) on both the left and right outer walls.

5. A zipper with a fixable pull tab according to claim 4, characterized in that: The adjustable elastic structure consists of a rear nut (6), a helical spring (7), and a front nut (8). The rear nut (6) and the front nut (8) are screwed onto the two ends of the surface of the U-shaped tie rod (5), and the helical spring (7) is fitted on the outer circumference of the U-shaped tie rod (5) between the rear nut (6) and the hinge shaft (4).

6. A zipper with a fixable pull tab according to claim 1, characterized in that: The U-shaped tie rod (5) is made of hard plastic.

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