Anti-theft plastic buckle for backpack

Abstract

The anti-theft plastic buckle comprises an anti-theft shell, an insertion hole is formed in the middle of the anti-theft shell, a magnetic attraction mechanism is arranged on the top wall of an inner cavity of the anti-theft shell, the lower end of the magnetic attraction mechanism is fixedly connected with a clamping mechanism, one side of the anti-theft shell is fixedly connected with a connecting base, one side of the connecting base is fixedly connected with a buckle rope, and the buckle rope is fixedly connected with the anti-theft shell. Limiting rods are fixedly connected to the periphery of the outer wall of the buckling rope, clamping grooves are formed in the periphery of the outer wall of the buckling rope, and a limiting groove is formed in the lower end of the anti-theft shell. The anti-theft buckle can be quickly opened through the arranged magnetic attraction mechanism, the magnetic plate is an electric magnet, the magnetic plate can be powered on only through small power generation equipment, and therefore people except a user can be further prevented from privately opening the buckle rope; the buckle rope can be inserted into the anti-theft shell through the arranged clamping mechanism, the ball body and the clamping groove are clamped together after the buckle rope is inserted, and therefore the buckle rope can be prevented from being pulled out of the anti-theft shell, and sold commodities can be prevented from being exchanged.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-theft plastic buckles, and particularly relates to an anti-theft plastic buckle for backpacks. Background Art

[0002] With the development of technology, the anti-theft plastic buckle industry is also constantly innovating, including the application of new materials, new designs, and more efficient production methods. For example, some anti-theft buckles may adopt RFID technology to optimize the return and exchange process and prevent malicious "replacing genuine with fake" behavior. Especially when carrying valuable items, the buckles of traditional backpacks are relatively simple and are easily opened by others without awareness, posing a security risk.

[0003] According to the patent document: CN219013940U, there is disclosed a plastic anti-theft buckle with anti-counterfeiting and anti-replacement design, including a fixing plate, an RFID electronic tag, and an anti-theft belt; the bottom end of the fixing plate is fixedly connected with the RFID electronic tag, the top of the fixing plate is a conical structure, a lead-out hole is opened in the middle of the end face of the fixing plate, an anti-theft belt is arranged inside the lead-out hole, a groove is opened in the middle of the surface of the anti-theft belt, and a number of first ratchet teeth are fixedly arranged obliquely inside the groove. The number of first ratchet teeth inside the groove is arranged in a serrated structure. A buckle block is arranged at the bottom of the surface of the fixing plate directly below the lead-out hole. A buckle hole matching the size of the anti-theft belt is opened on the surface of the buckle block, and a number of second ratchet teeth are fixedly arranged obliquely at the top end of the inner wall of the buckle hole. The end of the anti-theft belt passes through the buckle hole and is fixed to the buckle block through the cooperation of the first ratchet teeth and the second ratchet teeth.

[0004] Currently, traditional plastic anti-theft buckles are often used in combination with RFID electronic tags, but the buckle belt in the plastic anti-theft buckle is generally fixed by buckling, which is convenient for purchasers to open, thus easily resulting in the situation of commodity replacement. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an anti-theft plastic buckle for backpacks to solve the problem that currently traditional plastic anti-theft buckles are often used in combination with RFID electronic tags, but the buckle belt in the plastic anti-theft buckle is generally fixed by buckling, which is convenient for purchasers to open, thus easily resulting in the situation of commodity replacement as mentioned in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: It includes an anti-theft shell, an insertion hole is arranged in the middle of the anti-theft shell, a magnetic attraction mechanism is arranged on the top wall of the inner cavity of the anti-theft shell, a clamping mechanism is fixedly connected to the lower end of the magnetic attraction mechanism, a connecting seat is fixedly connected to one side of the anti-theft shell, a buckle rope is fixedly connected to one side of the connecting seat, limiting rods are fixedly connected to the peripheries of the outer walls of the buckle rope, card slots are opened on the peripheries of the outer walls of the buckle rope, and a limiting groove is opened at the lower end of the anti-theft shell.

[0007] The magnetic attraction mechanism includes an iron plate, the upper end of the iron plate is fixedly connected to the inner cavity top wall of the anti-theft shell, a spring is arranged at the lower end of the iron plate, a magnetic plate is arranged at the lower end of the spring, the lower end of the magnetic plate is fixedly connected with a mounting plate, the two sides of the lower end of the mounting plate are hinged with connecting rods, and a through hole is formed through the middle of the mounting plate.

[0008] Preferably, the lower end of the iron plate is fixedly connected to the upper end of the spring, and the lower end of the spring is fixedly connected to the upper end of the magnetic plate.

[0009] Preferably, through holes with the same diameter are formed through the middle parts of the iron plate, the magnetic plate and the anti-theft shell, and the through holes are larger than the outer diameter of the buckle rope.

[0010] Preferably, the outer wall of the insertion hole is connected through the middle part of the anti-theft shell, and the upper end of the magnetic attraction mechanism is fixedly connected to the inner cavity top wall of the anti-theft shell.

[0011] Preferably, the engaging mechanism includes a movable block, the upper end of the movable block is hinged to the lower end of the connecting rod, a cylinder is arranged on one side of the movable block, a sphere is arranged on one side of the cylinder, the lower end of the movable block is fixedly connected with a slider, the lower end of the movable block is movably connected with a fixed frame, and a sliding groove is formed in the inner wall of the fixed frame.

[0012] Preferably, one side of the movable block is fixedly connected to one side of the cylinder, and one side of the cylinder is fixedly connected to one side of the sphere.

[0013] Preferably, the sliding groove formed in the inner wall of the fixed frame is adapted to the slider.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By arranging the magnetic attraction mechanism, the device can quickly open the anti-theft buckle, and the magnetic plate is an electro-magnet, and a small power generation device is required to energize the magnetic plate, so as to further prevent people other than the user from privately opening the buckle rope.

[0016] 2. By arranging the engaging mechanism, the device can insert the buckle rope into the anti-theft shell. After insertion, the sphere is engaged with the card slot, so as to prevent the buckle rope from being pulled out of the anti-theft shell, and thus prevent the sold goods from being exchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the magnetic attraction mechanism of the present utility model;

[0019] Figure 3 is a structural schematic diagram of the engaging mechanism of the present utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional side view of the partial structure of the present utility model.

[0021] In the figure: 1, anti-theft shell; 2, insertion hole; 3, magnetic attraction mechanism; 4, clamping mechanism; 5, connecting seat; 6, fastening rope; 7, limiting rod; 8, clamping groove; 9, limiting groove; 31, iron plate; 32, spring; 33, magnetic plate; 34, mounting plate; 35, connecting rod; 36, through hole; 41, movable block; 42, cylinder; 43, sphere; 44, slider; 45, fixed frame; 46, sliding groove. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 , Figure 2 and Figure 4 , the present utility model provides a technical solution: an anti-theft plastic buckle for a backpack, including an anti-theft shell 1, an insertion hole 2 is provided in the middle of the anti-theft shell 1, a magnetic attraction mechanism 3 is provided on the top wall of the inner cavity of the anti-theft shell 1, a clamping mechanism 4 is fixedly connected to the lower end of the magnetic attraction mechanism 3, a connecting seat 5 is fixedly connected to one side of the anti-theft shell 1, a fastening rope 6 is fixedly connected to one side of the connecting seat 5, limiting rods 7 are fixedly connected to the outer circumference of the fastening rope 6, clamping grooves 8 are provided on the outer circumference of the fastening rope 6, a limiting groove 9 is provided at the lower end of the anti-theft shell 1, the magnetic attraction mechanism 3 includes an iron plate 31, the upper end of the iron plate 31 is fixedly connected to the top wall of the inner cavity of the anti-theft shell 1, a spring 32 is provided at the lower end of the iron plate 31, a magnetic plate 33 is provided at the lower end of the spring 32, a mounting plate 34 is fixedly connected to the lower end of the magnetic plate 33, connecting rods 35 are hinged to both sides of the lower end of the mounting plate 34, a through hole 36 is provided through the middle of the mounting plate 34, the lower end of the iron plate 31 is fixedly connected to the upper end of the spring 32, the lower end of the spring 32 is fixedly connected to the upper end of the magnetic plate 33, through holes 36 with the same diameter are provided through the middle parts of the iron plate 31, the magnetic plate 33 and the anti-theft shell 1 and the through hole 36 is larger than the outer diameter of the fastening rope 6, the outer wall of the insertion hole 2 is connected through the middle part of the anti-theft shell 1, and the upper end of the magnetic attraction mechanism 3 is fixedly connected to the top wall of the inner cavity of the anti-theft shell 1;

[0024] The magnetic plate 33 is an electro - electromagnet. When the electro - electromagnet is powered on, the electro - electromagnet drives the mounting plate 34 to move towards the iron plate 31. When the mounting plate 34 moves, the angle of the connecting rod 35 changes. The angle of the connecting rod 35 gradually becomes larger. The top of the connecting rod 35 has a pulling force backward on the movable block 41. The movable block 41 drives the sphere 43 to move backward through the cylinder 42 and withdraws from the card slots 8 symmetrically opened on both sides of the buckle rope 6. After withdrawal, one end of the buckle rope 6 can be withdrawn from the anti - theft shell 1. Through the combined use of the magnetic attraction mechanism 3 and the clamping mechanism 4, a more secure buckling method is realized. When buckling, a magnetic attraction is generated between the magnetic plate 33 and the iron plate 31, so that the clamping mechanism 4 can be firmly locked in the anti - theft shell 1, thereby preventing unauthorized release of the buckle rope 6. In addition, the setting of the limiting rod 7 and the card slot 8 further ensures the stability and reliability of the buckle rope 6 during use, avoiding accidental loosening caused by external forces. The card slot 8 is adapted to and snap - connected to the outer side wall of the sphere 43 for fixing the buckle rope 6 to prevent the buckle rope 6 from being withdrawn from the anti - theft shell 1. Through holes 36 are provided in the middle of both the magnetic plate 33 and the mounting plate 34, and the through holes 36 are correspondingly arranged with the insertion holes 2 and have the same specifications for the end of the buckle rope 6 to pass through. The shape of the slider 44 is a T - shaped structure. The slider 44 is slidably connected to the chute 46 for guiding the movement of the movable block 41 so that the movable block 41 can move smoothly. The limiting groove 9 is adapted to the limiting rod 7 and can assist in positioning when the buckle rope 6 is fixed.

[0025] Please refer to Figure 1 、 Figure 3 、and Figure 4 As shown in, the clamping mechanism 4 includes a movable block 41. The upper end of the movable block 41 is hinged to the lower end of the connecting rod 35. One side of the movable block 41 is provided with a cylinder 42. One side of the cylinder 42 is provided with a sphere 43. The lower end of the movable block 41 is fixedly connected with a slider 44. The lower end of the movable block 41 is movably connected with a fixed frame 45. The inner wall of the fixed frame 45 is provided with a chute 46. One side of the movable block 41 is fixedly connected with one side of the cylinder 42. One side of the cylinder 42 is fixedly connected with one side of the sphere 43. The chute 46 provided on the inner wall of the fixed frame 45 is adapted to the slider 44;

[0026] The user only needs to pass the buckle rope 6 through the corresponding part of the backpack and then insert it into the anti - theft shell 1. The magnetic attraction mechanism 3 will automatically adsorb and lock, thus realizing quick and safe buckling. Due to the magnetic force of the magnetic attraction mechanism 3, even when the backpack is slightly shaken, the buckled state can be maintained stably.

[0027] Working principle: First, the magnetic plate 33 serves as an electro-magnet. When the electro-magnet is powered on, the electro-magnet drives the mounting plate 34 to move towards the iron plate 31. When the mounting plate 34 moves, the angle of the connecting rod 35 changes, and the angle of the connecting rod 35 gradually increases. The top end of the connecting rod 35 has a pulling force backward on the movable block 41. The movable block 41 drives the sphere 43 to move backward through the cylinder 42 and withdraws from the symmetrically arranged clamping grooves 8 on both sides of the buckle rope 6. After withdrawal, one end of the buckle rope 6 can be withdrawn from the anti-theft shell 1. Through the combined use of the magnetic attraction mechanism 3 and the clamping mechanism 4, a more secure buckling method is achieved. When buckling, a magnetic attraction is generated between the magnetic plate 33 and the iron plate 31, enabling the clamping mechanism 4 to be firmly locked in the anti-theft shell 1, thereby preventing unauthorized release of the buckle rope 6. In addition, the setting of the limiting rod 7 and the clamping groove 8 further ensures the stability and reliability of the buckle rope 6 during use, avoiding accidental loosening caused by external forces. The clamping groove 8 is adapted to and clamped with the outer side wall of the sphere 43 for fixing the buckle rope 6 to prevent the buckle rope 6 from being withdrawn from the anti-theft shell 1. Through holes 36 are provided in the middle of both the magnetic plate 33 and the mounting plate 34, and the through holes 36 are correspondingly arranged with the insertion holes 2 and have the same specifications for the end of the buckle rope 6 to pass through. The shape of the slider 44 is a T-shaped structure, and the slider 44 is slidably connected to the sliding groove 46 for guiding the movement of the movable block 41, enabling the movable block 41 to move smoothly. The limiting groove 9 is adapted to the limiting rod 7 for auxiliary positioning when the buckle rope 6 is fixed;

[0028] Then, during actual use, the user only needs to pass the buckle rope 6 through the corresponding part of the backpack and then insert it into the anti-theft shell 1. The magnetic attraction mechanism 3 will automatically adsorb and lock, thus achieving quick and secure buckling. Due to the magnetic force of the magnetic attraction mechanism 3, even when the backpack is slightly shaken, the buckled state can remain stable, greatly improving the anti-theft performance. It is not only applicable to backpacks but can also be widely applied to various products such as bags, suitcases, and handbags that require anti-theft functions. Its structure is simple, operation is convenient, and it is safe and reliable. The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-theft plastic buckle for a backpack, comprising an anti-theft shell (1), characterized in that: An insertion hole (2) is provided in the middle of the anti-theft shell (1), a magnetic attraction mechanism (3) is provided on the top wall of the inner cavity of the anti-theft shell (1), a clamping mechanism (4) is fixedly connected to the lower end of the magnetic attraction mechanism (3), a connecting seat (5) is fixedly connected to one side of the anti-theft shell (1), a buckle rope (6) is fixedly connected to one side of the connecting seat (5), a limiting rod (7) is fixedly connected to the outer wall of the buckle rope (6), a clamping groove (8) is provided on the outer wall of the buckle rope (6), and a limiting groove (9) is provided at the lower end of the anti-theft shell (1); The magnetic attraction mechanism (3) comprises an iron plate (31), the upper end of the iron plate (31) is fixedly connected to the inner cavity top wall of the anti-theft shell (1), the lower end of the iron plate (31) is provided with a spring (32), the lower end of the spring (32) is provided with a magnetic plate (33), the lower end of the magnetic plate (33) is fixedly connected to a mounting plate (34), the lower end of the mounting plate (34) is hinged with connecting rods (35) on both sides, and a through hole (36) is opened in the middle of the mounting plate (34).

2. The anti-theft plastic buckle for backpack according to claim 1, characterized in that: The lower end of the iron plate (31) is fixedly connected to the upper end of the spring (32), and the lower end of the spring (32) is fixedly connected to the upper end of the magnetic plate (33).

3. The anti-theft plastic buckle for backpack according to claim 2, characterized in that: The iron plate (31), the magnetic plate (33) and the middle part of the anti-theft shell (1) are all penetrated by through holes (36) of the same diameter, and the through holes (36) are larger than the outer diameter of the buckle rope (6).

4. The anti-theft plastic buckle for backpack according to claim 1, characterized in that: The outer wall of the insertion hole (2) is connected to the middle part of the anti-theft shell (1) through and through, and the upper end of the magnetic attraction mechanism (3) is fixedly connected to the top wall of the inner cavity of the anti-theft shell (1).

5. The anti-theft plastic buckle for backpack according to claim 1, characterized in that: The engaging mechanism (4) comprises a movable block (41), the upper end of the movable block (41) is hinged to the lower end of the connecting rod (35), a cylinder (42) is arranged on one side of the movable block (41), a sphere (43) is arranged on one side of the cylinder (42), a slider (44) is fixedly connected to the lower end of the movable block (41), and a fixed frame (45) is movably connected to the lower end of the movable block (41), and a sliding groove (46) is provided on the inner wall of the fixed frame (45).

6. The anti-theft plastic buckle for backpack according to claim 5, characterized in that: One side of the movable block (41) is fixedly connected to one side of the cylinder (42), and one side of the cylinder (42) is fixedly connected to one side of the sphere (43).

7. The anti-theft plastic buckle for backpack according to claim 5, characterized in that: The sliding groove (46) provided on the inner wall of the fixing frame (45) is adapted to the sliding block (44).

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