Backpack with improved anti-theft function

Abstract

The utility model relates to the technical field of knapsacks, in particular to a knapsack with an improved anti-theft function, which comprises a knapsack main body, an overturning cover and a locking device, the overturning cover is sleeved at the top end of the knapsack main body, the locking device is arranged on the knapsack main body and comprises a magic tape hook surface and a magic tape loop surface, the magic tape hook surface is fixedly connected with the overturning cover, and the magic tape loop surface is fixedly connected with the overturning cover. The hook-and-loop fastener loop surface is fixedly connected with the front face of the backpack body, the hook-and-loop fastener hook surface is matched with the hook-and-loop fastener loop surface, the side, away from the hook-and-loop fastener loop surface, of the backpack body is fixedly connected with a first mounting piece, and the inner wall of the first mounting piece is fixedly connected with a first connecting rod. According to the backpack, the locking device is arranged, the backpack is prevented from being directly opened from the back face by a thief, the waistband is additionally arranged to be matched with the shoulder straps, the height of the waistband can be adjusted, the bearing stability is improved, the backpack is suitable for people with different heights, and the reliability of equipment is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of backpack technology, and in particular to a backpack with improved anti-theft function. Background Technology

[0002] Backpacks are bags worn on the back, made of a variety of materials, including genuine leather, plastic, polyester, canvas, nylon, cotton, and linen.

[0003] In an era that increasingly emphasizes individuality, various styles such as minimalist, retro, and cartoon cater to the needs of fashionistas who want to express their individuality from different perspectives, and the styles have also evolved from traditional business bags, school bags, and travel bags.

[0004] When going out in daily life, people put their wallets and other valuables in backpacks. Since traditional backpacks do not have anti-theft features and thieves can steal valuables simply by unzipping the zipper, they are easily picked off by pickpockets in public places such as buses when people are not paying attention. This needs to be improved. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing technologies are easily stolen from the back, and to propose a backpack with improved anti-theft function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a backpack with improved anti-theft function, comprising a backpack body, a flip cover, and a locking device. The flip cover is fitted onto the top of the backpack body, and the locking device is disposed on the backpack body. The locking device includes a hook and loop fastener and a loop fastener. The hook and loop fastener are fixedly connected to the flip cover, and the loop fastener is fixedly connected to the front of the backpack body. The hook and loop fasteners are mutually compatible. A mounting piece is fixedly connected to the side of the backpack body away from the loop fastener. A connecting rod is fixedly connected to the inner wall of the mounting piece. A connecting strap is rotatably connected to the surface of the connecting rod. The end of the connecting strap away from the connecting rod is fixedly connected to the flip cover.

[0007] Furthermore, a shoulder strap is fixedly connected to the side of the backpack body near the Velcro surface. There are two sets of shoulder straps arranged symmetrically. A second mounting piece is fixedly connected to the side of the backpack body near the Velcro surface.

[0008] Furthermore, a connecting rod is fixedly connected inside the mounting plate two, a retainer is rotatably connected to the surface of the connecting rod two, and a retainer is fixedly connected to the end of the shoulder strap away from the main body of the backpack.

[0009] Furthermore, the card block is slidably connected to the inner wall of the card sleeve, a fixing rod is fixedly connected to the inner wall of the card block, and sliders are slidably connected to both ends of the fixing rod.

[0010] Furthermore, the inner wall of the sleeve is provided with a sliding groove, the sliding groove penetrates the sleeve, the slider is slidably connected to the inner wall of the sliding groove, and a spring is sleeved on the surface of the fixing rod.

[0011] Furthermore, the springs are arranged in two sets symmetrically, and the two ends of the springs are fixedly connected to the locking block and the slider one, respectively. The locking block has a groove, and the slider one has a protrusion fixedly connected to the side near the groove.

[0012] Furthermore, the left and right sides of the backpack body are fixedly connected to slide rails, the inner walls of the slide rails are slidably connected to sliders, the inner walls of sliders are fixedly connected to fixed shafts, the surfaces of the fixed shafts are rotatably connected to waist belts, and the other ends of the two sets of waist belts are fixedly connected to card blocks and card sleeves respectively.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, a locking device enhances the anti-theft function of the backpack. When using the backpack, the hook side of the Velcro on the flip-top is aligned with the loop side of the Velcro on the main body of the backpack. Then, slide slider two to a suitable height. Sliding slider two, along with the waist belt, slides simultaneously. Then, the buckles on the shoulder straps engage with the card sleeves on the main body of the backpack. Finally, the buckles on the two waist belts engage with the card sleeves. Pressing slider one causes it to slide with the protrusion and compress the spring. After the buckle is inserted into the card sleeve, slider one is in the groove. At this point, the spring is released and pushes slider one into the groove. Simultaneously, the protrusion abuts against the inner wall of the groove. By setting a locking device, the backpack is prevented from being opened directly from the back by thieves. The additional waist belt works in conjunction with the shoulder straps, and the waist belt is height-adjustable, improving carrying stability and making it suitable for people of different heights. This effectively improves the reliability of the device. Attached Figure Description

[0015] Figure 1 This utility model provides a front structural diagram of a backpack that enhances its anti-theft function;

[0016] Figure 2 This utility model provides a schematic diagram of the back structure of a backpack that enhances its anti-theft function;

[0017] Figure 3 This utility model provides a structural schematic diagram of a locking device in a backpack to improve anti-theft functionality;

[0018] Figure 4 This utility model proposes a backpack with improved anti-theft function. Figure 3 A magnified structural diagram at point A;

[0019] Figure 5This utility model provides a structural diagram of a slide rail and waist belt in a backpack to improve anti-theft functionality;

[0020] Figure 6 This utility model proposes a backpack with improved anti-theft function. Figure 5 A magnified structural diagram at point B.

[0021] Legend:

[0022] 1. Backpack body; 2. Flip-top; 3. Locking device; 31. Hook and loop fastener; 32. Hook and loop fastener; 33. Mounting piece 1; 34. Connecting rod 1; 35. Connecting strap; 36. Shoulder strap; 37. Clip; 38. Mounting piece 2; 39. Connecting rod 2; 310. Clip sleeve; 311. Fixing rod; 312. Spring; 313. Slider 1; 314. Slide groove; 315. Groove; 316. Protrusion; 317. Slide rail; 318. Slider 2; 319. Fixing shaft; 320. Waist belt. Detailed Implementation

[0023] Please see Figures 1-6 This utility model provides a technical solution: a backpack with improved anti-theft function, including a backpack body 1, a flip cover 2 and a locking device 3. The flip cover 2 is sleeved on the top of the backpack body 1, and the locking device 3 is set on the backpack body 1.

[0024] The specific design and function of its locking device 3 will be explained below.

[0025] In this embodiment: the locking device 3 includes a hook and loop fastener 31 and a loop fastener 32. The hook and loop fastener 31 is fixedly connected to the flip cover 2, and the loop fastener 32 is fixedly connected to the front of the backpack body 1. The hook and loop fastener 31 and the loop fastener 32 are mutually compatible. A mounting piece 33 is fixedly connected to the side of the backpack body 1 away from the loop fastener 32. A connecting rod 34 is fixedly connected to the inner wall of the mounting piece 33. A connecting strap 35 is rotatably connected to the surface of the connecting rod 34. The end of the connecting strap 35 away from the connecting rod 34 is fixedly connected to the flip cover 2.

[0026] The effect achieved by the above components is as follows: the hook side 31 and the loop side 32 of the hook and loop fastener are set on the side close to the human body, and the opening and closing marks are almost invisible from the outside. It is difficult for thieves to determine the location of the opening. The user's back is close to the location of the hook and loop fastener. If others want to touch it, they must first touch the user's body, which is easy to be noticed. This physically increases the difficulty of theft.

[0027] Specifically, a shoulder strap 36 is fixedly connected to the side of the backpack body 1 near the Velcro surface 32. There are two sets of shoulder straps 36 arranged symmetrically. An installation piece 38 is fixedly connected to the side of the backpack body 1 near the Velcro surface 32.

[0028] Specifically, the internal fixed connection of the mounting plate 2 38 is the connecting rod 2 39, the surface of the connecting rod 2 39 is rotatably connected to the sleeve 310, and the end of the shoulder strap 36 away from the backpack body 1 is fixedly connected to the clip 37.

[0029] Specifically, the card block 37 is slidably connected to the inner wall of the card sleeve 310, and a fixing rod 311 is fixedly connected to the inner wall of the card block 37. Sliding sliders 313 are slidably connected to both ends of the fixing rod 311.

[0030] The effect achieved by the above components is as follows: with the card block 37 and card sleeve 310 set, the backpack can be removed simply by pressing the slider 313.

[0031] Specifically, the inner wall of the sleeve 310 is provided with a groove 314, which passes through the sleeve 310. The slider 313 is slidably connected to the inner wall of the groove 314, and a spring 312 is sleeved on the surface of the fixing rod 311.

[0032] The effect achieved by the above components is as follows: the spring 312 supports the slider 313, so that the locking block 37 is connected to the locking sleeve 310.

[0033] Specifically, there are two sets of springs 312 arranged symmetrically. The two ends of the springs 312 are fixedly connected to the locking block 37 and the slider 313 respectively. The locking block 37 has a groove 315, and the slider 313 has a protrusion 316 fixedly connected to the side of the slider 313 near the groove 315.

[0034] The effect achieved by the above components is to provide a protrusion 316 to prevent the slider 313 from disengaging from the fixing rod 311.

[0035] Specifically, slide rails 317 are fixedly connected to the left and right sides of the backpack body 1. Slider 318 is slidably connected to the inner wall of slide rail 317. Fixed shaft 319 is fixedly connected to the inner wall of slider 318. Waist belt 320 is rotatably connected to the surface of fixed shaft 319. The other ends of the two sets of waist belts 320 are fixedly connected to card block 37 and card sleeve 310 respectively.

[0036] The effect achieved by the above components is: the adjustable waist belt 320 can be adapted to people of different heights.

[0037] Working principle: By setting the locking device 3, the anti-theft function of the backpack can be increased. When using the backpack, the hook side 31 on the flip cover 2 is attached to the hook side 32 on the backpack body 1. Then slide the second slider 318 to a suitable height. The second slider 318 slides with the waist belt 320 at the same time. Then the buckle 37 on the shoulder strap 36 is engaged with the card sleeve 310 on the backpack body 1. Then the buckles 37 on the two waist belts 320 are engaged with the card sleeve 310. Pressing the first slider 313 causes the first slider 313 to slide with the protrusion 316 and squeeze the spring 312. After the buckle 37 is inserted into the card sleeve 310, the first slider 313 is in the groove 314. At this time, the spring 312 is unrestrained and pushes the first slider 313 into the groove 314. At the same time, the protrusion 316 abuts against the inner wall of the groove 315.

[0038] By setting a locking device 3, the backpack is prevented from being opened directly from the back by thieves. In addition, a waist belt 320 is set up to work with the shoulder straps 36. Moreover, the waist belt 320 is height adjustable, which improves the stability of carrying the backpack and makes it suitable for people of different heights, thus effectively improving the reliability of the equipment.

Claims

1. A backpack with enhanced anti-theft function, comprising a backpack body (1), a flip-top cover (2), and a locking device (3), characterized in that: The flip cover (2) is fitted onto the top of the backpack body (1). The front of the backpack body (1) is fixedly connected with a Velcro surface (32). The flip cover (2) is fixedly connected with a Velcro hook surface (31). The Velcro hook surface (31) and the Velcro surface (32) are mutually compatible. The locking device (3) is installed on the backpack body (1); The locking device (3) includes a mounting piece (33), which is fixedly connected to the side of the backpack body (1) away from the Velcro surface (32). A connecting rod (34) is fixedly connected to the inner wall of the mounting piece (33), and a connecting strap (35) is rotatably connected to the surface of the connecting rod (34). The end of the connecting strap (35) away from the connecting rod (34) is fixedly connected to the flip cover (2).

2. The backpack with improved anti-theft function according to claim 1, characterized in that: The backpack body (1) is fixedly connected to a shoulder strap (36) on the side near the Velcro surface (32). There are two sets of shoulder straps (36) arranged symmetrically. The backpack body (1) is fixedly connected to a mounting piece (38) on the side near the Velcro surface (32).

3. A backpack with improved anti-theft function according to claim 2, characterized in that: The mounting plate 2 (38) is internally fixedly connected to the connecting rod 2 (39), and the surface of the connecting rod 2 (39) is rotatably connected to the sleeve (310). The shoulder strap (36) is fixedly connected to the end away from the backpack body (1) with a clip (37).

4. A backpack with improved anti-theft function according to claim 3, characterized in that: The card block (37) is slidably connected to the inner wall of the sleeve (310), and a fixing rod (311) is fixedly connected to the inner wall of the card block (37). Sliding sliders (313) are slidably connected to both ends of the fixing rod (311).

5. A backpack with improved anti-theft function according to claim 4, characterized in that: The inner wall of the sleeve (310) is provided with a groove (314), the groove (314) passes through the sleeve (310), the slider (313) is slidably connected to the inner wall of the groove (314), and the surface of the fixing rod (311) is fitted with a spring (312).

6. A backpack with improved anti-theft function according to claim 5, characterized in that: The spring (312) has two sets and is arranged symmetrically. The two ends of the spring (312) are fixedly connected to the locking block (37) and the slider (313) respectively. The locking block (37) has a groove (315) and the slider (313) has a protrusion (316) fixedly connected to the side of the slider (313) near the groove (315).

7. A backpack with improved anti-theft function according to claim 3, characterized in that: The backpack body (1) is fixedly connected to slide rails (317) on both the left and right sides. The inner wall of the slide rail (317) is slidably connected to a second slider (318). The inner wall of the second slider (318) is fixedly connected to a fixed shaft (319). The surface of the fixed shaft (319) is rotatably connected to a waist belt (320). The other ends of the two sets of waist belts (320) are fixedly connected to a card block (37) and a card sleeve (310) respectively.

Images