Magnetic buckle for backpack

Abstract

The utility model belongs to the knapsack fastener technical field, concretely relates to a magnetic attraction buckle for knapsack, including female piece and sub -piece, the female piece and sub -piece are provided with the first magnet piece and the second magnet piece who mutually attract respectively, be provided with the magnetic attraction linkage locking mechanism between the female piece and sub -piece, the magnetic attraction linkage locking mechanism can be when the first magnet piece and the second magnet piece mutually adsorb automatic guide locking part and move to the inclined wedge step bolt interlock structure of locking position, realize automatic locking, its magnetic attraction quick automatic locking, manual unlocking prevent falling off, compact and durable structure is reasonable.

Description

Technical Field

[0001] This utility model belongs to the field of backpack buckle technology, specifically relating to a magnetic buckle for backpacks. Background Technology

[0002] Magnetic snaps, as a common connecting device, are widely used in backpacks, bags, clothing, and other products to achieve quick connection and separation of two parts. Traditional magnetic snaps typically rely solely on magnetic attraction and lack an effective mechanical locking structure, making them prone to accidental detachment under external pulling or vibration, resulting in insufficient reliability. Furthermore, while some existing magnetic snaps do have mechanical locking mechanisms, they often require manual operation to lock, which is inconvenient and fails to meet users' needs for quick, automatic locking and reliable connection.

[0003] In existing technologies, some magnetic snap fasteners attempt to combine magnetic attraction with mechanical locking, but their complex structure, numerous parts, and high manufacturing costs, coupled with the susceptibility to wear and jamming during long-term use, affect their lifespan and user experience. Therefore, it is necessary to provide a magnetic snap fastener that is structurally sound, easy to operate, reliably locks, and features both automatic locking and manual unlocking functions. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic snap fastener for backpacks to solve the problems of unreliable locking, inconvenient operation, and complex structure of existing magnetic snap fasteners.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a magnetic snap fastener for a backpack, comprising a mother component and a daughter component, wherein a first magnet and a second magnet that attract each other are respectively provided on the mother component and the daughter component, and a magnetic linkage locking mechanism is provided between the mother component and the daughter component. The magnetic linkage locking mechanism can automatically guide the locking component to move to the wedge-step pin interlocking structure of the locking position when the first magnet and the second magnet attract each other, thereby achieving automatic locking.

[0006] Furthermore, the magnetic linkage locking mechanism includes a radially movable locking component disposed on the female component, the locking component including a locking portion protruding toward the male component; the male component is provided with a locking engagement portion that cooperates with the locking portion.

[0007] Furthermore, the locking component is provided with a wedge surface, and the female or male component is provided with a guide structure that cooperates with the wedge surface, wherein the wedge surface is a progressive slope structure.

[0008] Furthermore, the width of the magnetic attraction plane of the second magnet facing the mother component is greater than the width of the corresponding magnetic attraction plane of the first magnet.

[0009] Furthermore, the interior of the wedge surface is completely hollowed out to form multiple separate inclined ribs, with the shallower end facing the interior of the mother part and the deeper end facing the exterior of the mother part.

[0010] Furthermore, the locking component is a pressing block symmetrically arranged on both sides of the mother piece, and the outer surface of the pressing block is provided with an operation groove that facilitates the insertion of a finger and pressing forward.

[0011] Furthermore, the locking part is a barbed pin located on the inner end of the pressing block, and the locking mating part is a pin groove that mates with the barbed pin.

[0012] Furthermore, the first magnet is fixedly disposed in the middle of the mother component, and a plurality of barbed pins are distributed on the periphery of the first magnet. The wedge surface is located on both sides of the first magnet and is offset from the barbed pins. The second magnet is fixedly disposed in the middle of the daughter component, and a plurality of pin slots are distributed on the periphery of the second magnet. The guide structure is located on both sides of the second magnet and is offset from the pin slots.

[0013] Furthermore, the end of the mother component away from the child component is provided with a first webbing connecting portion, and the end of the child component away from the mother component is provided with a second webbing connecting portion.

[0014] Furthermore, the first webbing connection part is a flip-top webbing buckle, the second webbing connection part is a loop-shaped webbing buckle, and the main structure of the mother part and the daughter part is integrally injection molded from plastic material.

[0015] Locking Phase (Magnetic Automatic Trigger): The wedge mechanism is in control. When the object is attracted, the wedge surfaces on both sides of the stepped slope engage with the guide structure to generate a lateral force, which pushes the slider to slide in the locking direction. The sliding of the wedge mechanism causes four barbed pins to insert into the pin openings, and the barbs lock in place to form a mechanical interlock.

[0016] Unlocking phase (manual slider operation): The slider moves laterally: manually pressing the pressing block forces the barbed pin out of the opening, disengaging the stepped ramp and thus releasing the interlock.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. Magnetic quick automatic locking: The magnetic linkage locking mechanism enables automatic locking during magnetic attraction, improving ease of use and connection reliability;

[0019] 2. Manual unlocking to prevent detachment: The symmetrically arranged pressing blocks and barbed pins provide bidirectional locking, enhancing the stability of the connection and its resistance to pull-out;

[0020] 3. Reasonable, compact and durable structure: The wedge-step pin interlocking structure guides the locking components to move automatically to the locking position, which is reasonable and reliable; the one-piece injection molding process reduces manufacturing costs and improves product consistency and durability;

[0021] 4. Improved fault tolerance and alignment accuracy: The sub-component magnet has a wider magnetic attraction plane, which increases the magnetic attraction area, reduces the requirement for absolute accuracy during connection, improves the fault tolerance rate, and makes the fastening operation easier to succeed.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0023] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0024] Figure 1 This is a schematic diagram of the structure of the parent component and the child component when the present invention is unlocked;

[0025] Figure 2 This is another structural schematic diagram of the mother and daughter components of this utility model when they are unlocked;

[0026] Figure 3 This is a schematic diagram of the structure of the parent component and the child component when locked.

[0027] Figure 4 This is another structural schematic diagram of the locking of the parent and child components of this utility model;

[0028] Figure 5 This is an exploded view of this utility model;

[0029] Figure 6 This is a schematic diagram of the front structure of the sub-component;

[0030] Figure 7 This is a schematic diagram of the front structure of the mother component.

[0031] In the diagram: 1. Mother component; 2. Daughter component; 3. First magnet; 4. Second magnet; 5. Locking component; 6. Locking part; 7. Locking mating part; 8. Wedge surface; 9. Guide structure; 10. Pressing block; 11. Barbed pin; 12. Pin groove; 13. First webbing connection part; 14. Second webbing connection part; Detailed Implementation

[0032] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0033] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. It should be understood that although the terms “first,” “second,” “third,” etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of this application, and similarly, second information may also be referred to as first information. Thus, a feature defined as “first,” “second,” etc., may explicitly or implicitly include one or more of that feature.

[0034] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. To address the above-mentioned problems, embodiments of this utility model provide a magnetic snap fastener for backpacks, which features quick and automatic magnetic locking, manual unlocking to prevent detachment, and a reasonable, compact, and durable structure. The technical solution of this utility model embodiment is described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 7 As shown, a magnetic clasp for a backpack includes a mother component 1 and a daughter component 2. The mother component 1 and the daughter component 2 are respectively provided with a first magnet 3 and a second magnet 4 that attract each other. The characteristic is that a magnetic attraction linkage locking mechanism is provided between the mother component 1 and the daughter component 2. The magnetic attraction linkage locking mechanism can automatically guide the locking component 5 to move to the wedge-step pin interlocking structure of the locking position when the first magnet 3 and the second magnet 4 attract each other, so as to achieve automatic locking.

[0036] The mother component 1 and the daughter component 2 are attracted to each other by a first magnet 3 and a second magnet 4 installed inside each other. During the magnetic attraction process, the magnetic linkage locking mechanism automatically guides the locking component to move and enter the locking position through its wedge-step pin interlocking structure, thereby achieving automatic locking without manual operation. This realizes the linkage between magnetic attraction and mechanical locking, improving the convenience and reliability of the connection and avoiding the problem of easy disengagement due to simple magnetic attraction.

[0037] Specifically, the magnetic linkage locking mechanism includes a radially movable locking component 5 disposed on the mother component 1, the locking component 5 including a locking part 6 protruding toward the daughter component 2; the daughter component 2 is provided with a locking engagement part 7 that cooperates with the locking part 6.

[0038] The locking component 5 (such as a pressing block) is radially slidably mounted on the female component 1, and its locking part 6 (such as a barb) can be inserted into the corresponding locking mating part (such as a pin groove) on the female component. This provides a clear mechanical locking path and mating relationship, ensuring the accuracy of locking and structural strength, and enhancing the resistance to pull-out.

[0039] Specifically, the locking component 5 is provided with a wedge surface 8, and the female component 1 or the female component 2 is provided with a guide structure 9 that cooperates with the wedge surface 8. The wedge surface 8 is a progressive slope structure.

[0040] A progressively inclined wedge surface 8 is machined on the locking component, and a matching guide structure 9 is set inside the housing of the mother component 1 or the daughter component 2. Utilizing the inclined guide principle, the vertical attraction force of the magnetic attraction is converted into the horizontal movement force of the locking component, realizing automatic locking during the attraction process. The structure is ingenious and the operation is reliable.

[0041] Specifically, the width of the magnetic attraction plane of the second magnet 4 facing the mother component 1 is greater than the width of the corresponding magnetic attraction plane of the first magnet 3.

[0042] When the magnets automatically attract, the wider second magnet pushes the wedge surface 8 to move radially outward, thereby automatically locking the magnetic attraction linkage locking mechanism. At the same time, the sub-magnet has a wider magnetic attraction plane, increasing the magnetic attraction area, reducing the absolute precision requirements during connection, improving the fault tolerance rate, and making the fastening operation easier to succeed.

[0043] Specifically, the interior of the wedge surface 8 is completely hollowed out to form multiple separate inclined ribs, with the shallower end facing the interior of the mother part 1 and the deeper end facing the exterior of the mother part 1.

[0044] The wedge surface 8 features a completely hollow design, forming multiple separate, angled reinforcing ribs. While ensuring the guiding function and structural strength of the wedge surface, it effectively reduces the weight of the component, saves materials, and lowers costs.

[0045] In a preferred embodiment, the locking component 5 is a pressing block 10 symmetrically arranged on both sides of the mother component 1, and the outer surface of the pressing block 10 is provided with an operation groove that facilitates the insertion of a finger and pressing forward.

[0046] The symmetrical structure provides balanced locking force, and the two-way locking is more stable. The press-to-unlock method is ergonomic and intuitive to operate. It significantly increases the friction between the finger and the press surface, providing a good feel even with wet hands or while wearing gloves, ensuring smooth and reliable unlocking.

[0047] Specifically, the locking part 6 is a barbed pin 11 located on the inner end of the pressing block 10, and the locking mating part 7 is a pin groove 12 that mates with the barbed pin.

[0048] The beveled design of the barb on the barb pin 11 makes it easy to insert, but it is difficult to disengage after being locked in the reverse direction (it requires external force to slide and unlock). After the barb pin 11 is inserted into the pin slot 12, the barbs interlock (similar to "gear engagement").

[0049] Specifically, the first magnet 3 is fixedly disposed in the middle of the mother part 1, and the four barbed pins 11 are distributed around the first magnet 3. The wedge surface 8 is located on both sides of the first magnet 3 and is offset from the barbed pins 11. The second magnet 4 is fixedly disposed in the middle of the daughter part 2, and the four pin slots 12 are distributed around the second magnet 4. The guide structure 9 is located on both sides of the second magnet 4 and is offset from the pin slots 12.

[0050] The centrally located magnets ensure uniform attraction, while the surrounding mechanical locking points provide a more secure connection. The reasonable force distribution avoids stress concentration. The staggered layout of functional areas results in a compact and rational structure.

[0051] In a preferred embodiment, the end of the mother component 1 away from the child component 2 is provided with a first webbing connecting portion 13, and the end of the child component 2 away from the mother component 1 is provided with a second webbing connecting portion 14.

[0052] The ends of the mother and daughter components are sewn or fastened to the backpack's webbing via the first webbing connector 13 and the second webbing connector 14, respectively. This provides a reliable and standard connection to the backpack, facilitating production and replacement, and offering high versatility.

[0053] Specifically, the first webbing connecting part 13 is a flip-top webbing buckle, the second webbing connecting part 14 is a loop-shaped webbing buckle, and the main structure of the mother part 1 and the daughter part 2 is integrally injection molded from plastic material.

[0054] The first webbing connector 13 uses a flip-top buckle; simply open the flip-top, insert the webbing, and fasten it. The second webbing connector 14 uses a common D-ring or U-ring buckle; the webbing is simply threaded through. The flip-top connection facilitates webbing length adjustment, while the U-ring connection is simple and quick. This combination of methods meets the connection needs of different parts of the backpack. The mother component 1 and daughter component 2 (excluding the magnet) are manufactured from engineering plastics using a one-piece injection molding process. This results in high production efficiency, low cost, and good product consistency. The plastic material is high-strength, lightweight, and corrosion-resistant, making it suitable for the operating environment of backpack buckles.

[0055] The working principle of this utility model is as follows:

[0056] When the mother component 1 and the child component 2 approach each other, the first magnet 3 and the second magnet 4 quickly attract each other, and the mother component 1 and the child component 2 are pressed tightly together. The inclined wedge surface 8 slides along the guide structure 9 and simultaneously drives the locking components to push outwards. The progressive inclined surface drives the pressing block 10 to move radially outwards. The barbed pin 11 is precisely embedded into the pin groove 12 under the guidance of the inclined wedge step, realizing automatic mechanical locking.

[0057] To unlock, the user simultaneously presses both pressing blocks 10 to disengage the barbed pin 11 from the pin slot 12, thus separating the female part 1 from the female part 2. Manual operation facilitates unlocking, and the wedge groove ensures a smooth unlocking process. The overall design is ingenious and easy to operate.

[0058] When the magnets attract each other, the wedge surface 8 engages with the guide structure 9, gradually guiding the barbed pin 11 into the pin slot 12, achieving symmetrical radial mechanical locking. Simultaneously, the progressive wedge-shaped stepped structure compensates for assembly errors, ensuring accurate pin engagement and improving connection stability and load-bearing capacity. The entire device can be quickly unlocked via a manual pull-out port, offering convenient operation and excellent reusability, making it suitable for applications requiring frequent disassembly and assembly. Furthermore, this magnetic clasp design is ingenious and compact, not only enhancing the ease of use of the backpack but also extending its lifespan, becoming an innovative highlight of modern backpack design.

[0059] This utility model has a reasonable structure, is easy to operate, and has reliable locking. It is suitable for various backpacks, bags, outdoor equipment and other products, and has broad application prospects.

[0060] The technical solution claimed by this utility model achieves the following beneficial effects:

[0061] 1. Quick and convenient connection: Utilizing the mutual magnetic attraction of the magnetic components, the female and male components can automatically align and quickly attract each other when they are close together, which greatly improves the efficiency and ease of use of the backpack fastening operation.

[0062] 2. Automatic and reliable locking: Through the wedge-step pin interlocking structure, the sliding part can automatically slide and the hook pin can be mechanically interlocked under the action of magnetic attraction, thus completing the automatic locking. The locked state is firm and reliable, which can effectively prevent accidental disengagement.

[0063] 3. Intuitive unlocking operation: With the symmetrically arranged manual operation part, the user can easily overcome the magnetic attraction by radial pressing action, drive the slider to exit the pin slot, and realize manual unlocking. The operation is intuitive, simple and effortless.

[0064] 4. Compact and durable structure: The overall structure is rationally laid out, and the components are linked efficiently. In particular, the overall structural strength and durability are enhanced by manufacturing methods such as one-piece molding.

[0065] 5. Improved fault tolerance and alignment accuracy: The sub-component magnet has a wider magnetic attraction plane, which increases the magnetic attraction area, reduces the requirement for absolute accuracy during connection, improves the fault tolerance rate, and makes the fastening operation easier to succeed.

[0066] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A magnetic clasp for a backpack, comprising a mother component (1) and a daughter component (2), wherein the mother component (1) and the daughter component (2) are respectively provided with a first magnet (3) and a second magnet (4) that attract each other, characterized in that: A magnetic linkage locking mechanism is provided between the mother component (1) and the daughter component (2). The magnetic linkage locking mechanism can automatically guide the locking component (5) to the inclined wedge stepped pin interlocking structure at the locking position when the first magnet (3) and the second magnet (4) attract each other, so as to achieve automatic locking.

2. The magnetic clasp for a backpack according to claim 1, characterized in that: The magnetic linkage locking mechanism includes a radially movable locking component (5) disposed on the mother part (1), the locking component (5) including a locking part (6) protruding toward the daughter part (2); the daughter part (2) is provided with a locking engagement part (7) that cooperates with the locking part (6).

3. The magnetic clasp for a backpack according to claim 2, characterized in that: The locking component (5) is provided with a wedge surface (8), and the mother component (1) or the daughter component (2) is provided with a guide structure (9) that cooperates with the wedge surface (8). The wedge surface (8) is a progressive slope structure.

4. The magnetic clasp for a backpack according to claim 2, characterized in that; The width of the magnetic attraction plane of the second magnet (4) facing the mother (1) is greater than the width of the corresponding magnetic attraction plane of the first magnet (3).

5. The magnetic clasp for a backpack according to claim 3, characterized in that: The wedge surface (8) is completely hollowed out to form multiple separate wedges, with the shallower end facing the inside of the mother piece (1) and the deeper end facing the outside of the mother piece (1).

6. The magnetic clasp for a backpack according to claim 3, characterized in that: The locking component (5) is a pressing block (10) symmetrically arranged on both sides of the mother component (1). The outer surface of the pressing block (10) is provided with an operation groove that facilitates the insertion of a finger and pressing forward.

7. The magnetic clasp for a backpack according to claim 6, characterized in that: The locking part (6) is a barbed pin (11) located on the inner side of the pressing block (10), and the locking mating part (7) is a pin groove (12) that mates with the barbed pin.

8. The magnetic clasp for a backpack according to claim 7, characterized in that: The first magnet (3) is fixedly disposed in the middle of the mother part (1), and the four barbed pins (11) are distributed on the periphery of the first magnet (3). The wedge surface (8) is located on both sides of the first magnet (3) and is offset from the barbed pins (11). The second magnet (4) is fixedly disposed in the middle of the daughter part (2), and the four pin slots (12) are distributed on the periphery of the second magnet (4). The guide structure (9) is located on both sides of the second magnet (4) and is offset from the pin slots (12).

9. The magnetic clasp for a backpack according to claim 1, characterized in that: The mother part (1) is provided with a first webbing connection part (13) at the end away from the daughter part (2), and the daughter part (2) is provided with a second webbing connection part (14) at the end away from the mother part (1).

10. The magnetic clasp for a backpack according to claim 9, characterized in that: The first webbing connection part (13) is a flip-top webbing buckle, the second webbing connection part (14) is a loop-shaped webbing buckle, and the main structure of the mother part (1) and the daughter part (2) is integrally injection molded from plastic material.

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