Luggage zipper locking device

Abstract

The utility model relates to the technical field of zippers, and discloses a luggage zipper locking device which comprises a carrier, a chain and a puller movably matched on the chain, and further comprises a fixed seat fixedly connected to the carrier and located at the terminal of the chain, a clamping groove is formed in the top face of the fixed seat, a pulling piece is movably arranged on the puller in a sleeved mode, and the pulling piece is connected with the clamping groove in a limiting and sliding mode. A clamping piece is arranged on the fixing base and is configured to be elastically connected to the top of the inner side wall of the clamping groove in a sliding mode so that a clamping section can be defined at the bottom in the clamping groove, and the pulling piece is clamped in the clamping section. The zipper structure can be conveniently locked and unlocked, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, and in particular to a zipper locking device for bags. Background Technology

[0002] Most bags use zippers for opening and closing. Currently, most common bag zipper pulls are equipped with locking devices to prevent the zipper from opening automatically and causing items to leak out. However, existing zipper locking devices still have certain defects.

[0003] For example, in a self-locking zipper with patent number CN222074652U, the zipper head is fixed by relatively squeezing two diagonal strips to make the locking block and the U-shaped block engage. However, when fixing the zipper head, the recessed position of the U-shaped block needs to be aligned with the locking block, and both diagonal strips need to be squeezed simultaneously to unlock the zipper head. Therefore, the usage steps are cumbersome and it is inconvenient to lock the zipper head, thus having certain defects. This patent provides a zipper locking device for bags to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a zipper locking device for bags to solve the problems existing in the prior art, so as to facilitate locking and unlocking of the zipper structure and improve the ease of use.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a zipper locking device for bags, including a carrier, a chain, and a zipper pull that is movably fitted on the chain, and further including:

[0006] A fixed base is fixed to the carrier and located at the end of the chain. The top surface of the fixed base has a slot. A pull tab is movably sleeved on the pull head. The pull tab is slidably connected to the slot. A card is provided on the fixed base. The card is configured to elastically slide against the top of the inner side wall of the slot to define a locking interval at the bottom of the slot. The pull tab is locked within the locking interval.

[0007] Preferably, a pair of cards are arranged opposite each other on both sides of the inner wall of the card slot, and the sides of the pair of cards that are close to each other have rounded corners.

[0008] Preferably, a retaining plate is fixedly connected to the pull tab, with both ends of the retaining plate extending along the width direction of the pull tab. The retaining plate is slidably connected to the card slot, and one end of the retaining plate extending out of the pull tab makes slidable contact with the adjacent card.

[0009] Preferably, the inner wall of the card slot is provided with a groove, the card slides in the groove, the number of grooves is the same as the number of cards and they correspond one-to-one, and a plurality of springs are provided at equal intervals along the length direction in the groove, the two ends of the springs abut against the adjacent card and the inner wall of the groove respectively.

[0010] Preferably, limiting plates are fixed to both ends of the card, and the end of the limiting plate away from the card extends into the groove and slides into the groove.

[0011] Preferably, a locking block is fixed to the bottom end of the pull tab, a groove is formed on the top surface of the fixing seat corresponding to the locking block, a toothed groove is formed on the side wall of the locking block, and a locking protrusion is fixed to the inner wall of the groove near the toothed groove. The locking protrusion has a semi-cylindrical structure, and the arc-shaped protruding end of the locking protrusion engages with the toothed groove.

[0012] Preferably, the top of the inner wall of the slot near the pull head has a rounded corner structure.

[0013] Preferably, the end of the pull tab away from the pull head is fixed with an anti-slip protrusion.

[0014] The present invention discloses the following technical effects:

[0015] This utility model utilizes a slot on a fixed base, and a pull tab is slidably connected to the slot. A card is also provided on the fixed base, which defines a locking area at the bottom of the slot. The pull tab is locked within this area, and the card elastically slides against the inner wall of the slot. To lock the pull tab in the slot, simply slide the pull tab to press the card, thus extending the pull tab into the locking area. Similarly, to remove the pull tab, lift the pull tab to press the card and extend it out of the slot, effectively detaching the pull tab from the slot. This significantly improves the convenience of locking and unlocking the pull tab, making it easier for users to operate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0017] Figure 1 This is a diagram showing the positional relationship between the pull head and the fixing base in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure when the pull tab and the fixed base are engaged in this utility model;

[0019] Figure 3This is a schematic diagram of the structure when the pull tab is detached from the fixing base in this utility model;

[0020] Figure 4 This is a diagram showing the connection relationship between the card and the spring in this utility model;

[0021] Among them, 1. fixed base; 11. slot; 12. groove; 2. pull tab; 21. card plate; 22. card block; 23. anti-slip protrusion; 3. card; 4. spring; 5. limiting plate; 6. card protrusion; 7. carrier; 8. chain; 9. pull head. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-4 This utility model provides a zipper locking device for bags, including a carrier 7, a chain 8, and a zipper pull 9 movably fitted on the chain 8, and further including:

[0025] The fixed base 1 is fixedly connected to the carrier 7 and located at the end of the chain 8. The top surface of the fixed base 1 is provided with a slot 11. The pull head 9 is movably sleeved with a pull tab 2. The pull tab 2 is slidably connected to the slot 11. The fixed base 1 is provided with a card 3. The card 3 is configured to be elastically slidably connected to the top of the inner side wall of the slot 11 to define the bottom of the slot 11 into a locking area. The pull tab 2 is locked in the locking area.

[0026] This utility model utilizes a slot 11 on a fixed base 1, and a pull tab 2 is slidably connected to the slot 11. A card 3 is also provided on the fixed base 1. The card 3 defines a locking area at the bottom of the slot 11, locking the pull tab 2 within this area. The card 3 is elastically connected to the inner wall of the slot 11. When locking the pull tab 2 in the slot 11, simply slide the pull tab 2 to press the card 3, thus extending the pull tab 2 into the locking area. Similarly, when removing the pull tab 2, lift the pull tab 2 to press the card 3, extending it out of the slot 11, effectively detaching the pull tab 2 from the slot 11. This significantly improves the convenience of locking or unlocking the pull tab 2, making it easier for users to operate.

[0027] Specifically, carrier 7 can be one of bags or leather bags.

[0028] Furthermore, a pair of cards 3 are arranged opposite each other on both sides of the inner wall of the card slot 11, and the sides of the pair of cards 3 that are close to each other have rounded corners.

[0029] By setting a pair of cards 3 opposite each other, the pull tab 2 is limited and engaged along both sides of the pull tab 2, thereby improving the locking stability of the pull tab 2 and the fixing seat 1. Moreover, the rounded corner design of the close sides of the cards 3 makes it easy to lock or unlock the pull tab 2 when the pull tab 2 is pressed down or lifted, with the pull tab 2 and cards 3 squeezing together.

[0030] Furthermore, a retaining plate 21 is fixedly connected to the pull tab 2. Both ends of the retaining plate 21 extend along the width direction of the pull tab 2. The retaining plate 21 is slidably connected to the card slot 11, and one end of the retaining plate 21 extending out of the pull tab 2 slides in contact with the adjacent card 3.

[0031] By fixing the card plate 21 to the pull tab 2, the card plate 21 forms a structure protruding along both ends of the pull tab 2, and the card plate 21 is used to limit the sliding contact with the card groove 11, thereby forming a limiting and fixing effect along the axis of the chain 8. Combined with the sliding contact between the card plate 21 and the card 3, the card 3 is used to limit and fix the card plate 21 within the carding area, thereby improving the locking effect on the pull tab 2.

[0032] Furthermore, the inner wall of the card slot 11 is provided with a groove, and the card 3 slides in the groove. The number of grooves is the same as the number of cards 3 and they correspond one-to-one. Several springs 4 are equally spaced along the length direction in the groove, and the two ends of the springs 4 abut against the adjacent card 3 and the inner wall of the groove, respectively.

[0033] The spring 4 provides elastic support for the card 3, increasing the elastic tendency of the card 3 in the direction away from the groove. When the card plate 21 slides into the locking area, the card 3 pops out to limit and fix the card plate 21. When the pull tab 2 is lifted, the card plate 21 and the card 3 slide into contact. When the spring 4 is squeezed, the card 3 extends into the groove, thereby unlocking the card plate 21.

[0034] Furthermore, limiting plates 5 are fixed to both ends of card 3 respectively, with the end of the limiting plate 5 away from card 3 extending into the groove and slidingly engaging with the groove.

[0035] The stability of the card 3 sliding with the groove is improved by using the limiting plate 5.

[0036] Furthermore, a locking block 22 is fixedly connected to the bottom end of the pull tab 2, and a groove 12 is opened on the top surface of the fixing seat 1 corresponding to the locking block 22. A toothed groove is opened on the side wall of the locking block 22, and a locking protrusion 6 is fixedly connected to the inner wall of the groove 12 near the toothed groove. The locking protrusion 6 is a semi-cylindrical structure, and the arc-shaped protruding end of the locking protrusion 6 is engaged with the toothed groove.

[0037] By fixing a locking block 22 to the bottom of the pull tab 2 and sliding the locking block 22 into the groove 12, the locking protrusion 6 fixed to the side wall of the groove 12 engages with the tooth groove of the locking block 22, which helps to enhance the locking stability of the pull tab 2. When unlocking the pull tab 2, the locking protrusion 6 of the semi-cylindrical structure slides into contact with the tooth groove, reducing the contact friction force, so that the locking protrusion 6 can be disengaged from the locking block 22 by lifting the pull tab 2.

[0038] Furthermore, the top of the inner wall of the slot 11 near the pull head 9 has a rounded corner structure.

[0039] By rounding the corners of the slot 11, the structure makes way for the rotation path generated by the card plate 21 during the rotation of the pull tab 2, thus ensuring the normal rotation of the pull tab 2.

[0040] Furthermore, the end of the pull tab 2 furthest from the pull head 9 is fixed with an anti-slip protrusion 23.

[0041] This utility model provides the working principle of a zipper locking device for bags:

[0042] Pulling the anti-slip protrusion 23 engages the chain 8 until the pull head 9 abuts against the fixed base 1. Then, rotating the pull tab 2 causes the locking plate 21 to slide into the locking groove 11. As the locking plate 21 continues to move, it presses against the card 3, ultimately extending the locking plate 21 into the engagement area. Simultaneously, the card 3 pops out, locking the pull tab 2, and the locking block 22 extends into the recess 12, engaging the toothed groove with the corresponding locking protrusion 6. To unlock the pull tab 2, simply move the anti-slip protrusion 23, lifting the pull tab 2 upwards to disengage the locking block 22 from the locking protrusion 6. At the same time, the locking plate 21 presses against the card 3 and extends out of the locking groove 11.

[0043] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A zipper locking device for bags, comprising a carrier (7), a chain (8), and a zipper pull (9) movably fitted on the chain (8), characterized in that, Also includes: A fixed base (1) is fixed to the carrier (7) and located at the end of the chain (8). A slot (11) is provided on the top surface of the fixed base (1). A pull tab (2) is movably sleeved on the pull head (9). The pull tab (2) is limited and slidably connected to the slot (11). A card (3) is provided on the fixed base (1). The card (3) is configured to be elastically slidably connected to the top of the inner side wall of the slot (11) to define the bottom of the slot (11) into a locking range. The pull tab (2) is locked in the locking range.

2. The luggage zipper locking device of claim 1, wherein: The cards (3) are arranged in pairs opposite each other on both sides of the inner wall of the card slot (11), and the sides of the pair of cards (3) that are close to each other have rounded corners.

3. The zipper locking device for bags according to claim 1, characterized in that: A card plate (21) is fixedly attached to the pull tab (2). Both ends of the card plate (21) extend along the width direction of the pull tab (2). The card plate (21) is slidably connected to the card slot (11). One end of the card plate (21) extending out of the pull tab (2) slides in contact with the adjacent card (3).

4. The zipper locking device for bags according to claim 1, characterized in that: The inner wall of the card slot (11) is provided with a groove, and the card (3) slides in the groove. The number of grooves is the same as the number of cards (3) and they correspond one-to-one. Several springs (4) are arranged at equal intervals along the length direction in the groove. The two ends of the springs (4) abut against the adjacent cards (3) and the inner wall of the groove, respectively.

5. The zipper locking device for bags according to claim 4, characterized in that: Limiting plates (5) are fixed to both ends of the card (3), and the end of the limiting plate (5) away from the card (3) extends into the groove and slides into the groove.

6. The zipper locking device for bags according to claim 1, characterized in that: The bottom end of the pull tab (2) is fixedly connected to a locking block (22). The top surface of the fixing seat (1) is provided with a groove (12) corresponding to the locking block (22). The side wall of the locking block (22) is provided with a toothed groove. The inner wall of the groove (12) is fixedly connected to a locking protrusion (6) on the side close to the toothed groove. The locking protrusion (6) is a semi-cylindrical structure. The arc-shaped protruding end of the locking protrusion (6) is engaged with the toothed groove.

7. The zipper locking device for bags according to claim 1, characterized in that: The top of the inner wall of the slot (11) near the pull head (9) has a rounded corner structure.

8. The zipper locking device for bags according to claim 1, characterized in that: The end of the pull tab (2) away from the pull head (9) is fixed with an anti-slip protrusion (23).

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