Anti-theft backpack

Abstract

The utility model relates to the technical field of knapsacks, and provides an anti-theft knapsack which comprises a knapsack body, the knapsack body is provided with a first collecting bag, and a first zipper is arranged on the back side face of the knapsack body and used for opening and closing the first collecting bag; a storage cavity is formed in the backpack body, a second zipper used for opening and closing the storage cavity is installed on the backpack body, the second zipper comprises two chains and two chain heads, the two chains are arranged on the backpack body, the chain heads are connected with the two chains, and the two chain heads are connected through a connecting assembly. According to the anti-theft knapsack, the situation that irrelevant personnel quickly pull the zipper to open the knapsack can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of backpacks, in particular to an anti-theft backpack. Background Art

[0002] Backpack refers to a bag that is carried on the back. It is made of a variety of materials, such as leather, plastic, polyester, etc. When going out in daily life, valuables such as wallets are placed in a backpack. However, since the zipper of the backpack is exposed, it is easy for people other than the backpack user to open the zipper. When the backpack is carried on the back, the backpack is in a visual blind spot. When others quickly open the zipper, the backpack user is not likely to notice, which can easily lead to the theft of items in the backpack. Therefore, there is a need for an anti-theft backpack that prevents others from quickly opening the zipper when the user carries the backpack on the back. Utility Model Content

[0003] The purpose of this application is to overcome the above technical problems and provide an anti-theft backpack.

[0004] The anti-theft backpack provided by this application adopts the following technical solution:

[0005] An anti-theft backpack comprises a backpack body, wherein the backpack body is provided with a first collection bag, and a first zipper is provided on the back side of the backpack body, and the first zipper is used to open and close the first collection bag; a storage cavity is provided inside the backpack body, and a second zipper is installed on the backpack body for opening and closing the storage cavity, and the second zipper comprises two chains and two chain heads, the two chains are respectively connected to the backpack body, the chain heads are connected to the two chains, and the two chain heads are connected by a connecting component.

[0006] By adopting the above technical solution, when the user wears the backpack, the first zipper can be in contact with the user's back, so that the first zipper can be hidden, and the possibility of being discovered and opened by unauthorized persons can be reduced, thereby increasing the anti-theft effect of the backpack. In addition, by providing a connecting component, the connecting component can connect the two chain heads, reducing the movement of the two chain heads toward the side away from each other, increasing the difficulty for others to pull the zipper to open the backpack, thereby reducing the possibility of unauthorized persons quickly opening the storage cavity to steal items.

[0007] Optionally, the two chain heads are connected via a connecting assembly, which includes a connecting block and two dovetail blocks, and the connecting block is connected to one of the chain heads; the two dovetail blocks are fixed to the connecting block, the chain head is provided with a dovetail groove for inserting the dovetail block, and the connecting block is provided with an anti-slip component.

[0008] By adopting the above-mentioned technical solution, the dovetail block on the connecting block is plugged into the dovetail groove, so that the two chain heads can be connected, reducing the movement of the two chain heads toward the side away from each other; and the provision of the anti-slip part can reduce the possibility of the dovetail block detaching from the dovetail groove, thereby increasing the stability of the connection between the dovetail block and the chain head.

[0009] Optionally, the two dovetail blocks are integrally formed with the connecting block.

[0010] By adopting the above technical solution, the connection strength between the dovetail block and the connecting block can be increased.

[0011] Optionally, the anti-dropping member includes a first spring, a mounting block and two plug-in blocks, the connecting block is provided with a connecting groove, and the mounting block is movably mounted in the connecting groove; two ends of the first spring are respectively connected to the mounting block and the inner wall of the connecting groove, and the elastic force of the first spring is used to drive the mounting block to move toward one side of the unlocking rod;

[0012] The unlocking rod is provided with a movable groove connected with the connecting groove, the plug-in block is movably installed in the movable groove and connected with the mounting block, and the dovetail groove is provided with a fixed groove for plugging the plug-in block.

[0013] By adopting the above-mentioned technical solution, the plug-in block is first moved toward one side of the connecting groove and the plug-in block is completely retracted into the movable groove, so that the dovetail block can smoothly enter the dovetail groove; when the fixed groove and the movable groove are arranged opposite to each other, the elastic force of the first spring drives the installation block to move toward one side of the dovetail block, and then the plug-in block is plugged into the fixed groove, thereby completing the connection between the dovetail block and the chain head, and the structure is simple, which is convenient for users to connect and fix.

[0014] Optionally, an unlocking groove connected to the connecting groove is formed on one side of the connecting block close to the unlocking rod, and an unlocking rod is movably installed in the unlocking groove, and the unlocking rod is connected to the connecting block.

[0015] By adopting the above technical solution, by pressing the unlocking lever, the mounting block can be moved in the connecting groove, so that the unlocking lever is separated from the fixing groove, that is, the fixation of the dovetail block and the chain head is cancelled, so that the staff can open the accommodating cavity. And by arranging the unlocking lever on the side of the connecting block close to the unlocking lever, the unlocking lever can be hidden, reducing the situation where the position of the unlocking lever is observed by uninformed persons to achieve quick unlocking, and improving the anti-theft performance of the backpack.

[0016] Optionally, the plug-in block is provided with a guide surface for guiding the plug-in block into the movable groove.

[0017] By adopting the above technical solution, when the dovetail block is inserted into the dovetail groove, the insertion block enters the fixed groove under the guidance of the guide surface, so that the dovetail block can smoothly enter the dovetail groove, thereby increasing convenience.

[0018] Optionally, a sponge cushion layer is protruding from the back side of the backpack body.

[0019] By adopting the above technical solution and providing a sponge pad layer, it is possible to reduce the situation where the back of the user directly contacts the first zipper when the user wears the backpack body, thereby increasing the comfort of the user wearing the backpack; and the sponge pad layer has multiple gaps, which can increase the ventilation effect of the backpack body and reduce the situation where the user's back is sweating.

[0020] Optionally, a decorative belt is provided on the back side of the backpack body, and the decorative belt covers the surface of the first zipper.

[0021] By adopting the above technical solution and providing a decorative belt, the first zipper can be hidden, thereby reducing the possibility of unauthorized persons quickly discovering the first zipper.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By providing the first zipper and the connecting assembly, the first zipper can be in contact with the back of the wearer, so that the first zipper can be hidden, which can reduce the possibility of the first zipper being discovered and opened by unrelated persons, thereby increasing the anti-theft effect of the backpack; and by providing the connecting assembly, the connecting assembly can connect the two chain heads, reduce the movement of the two chain heads toward the side away from each other, increase the difficulty for others to pull the zipper, and thus reduce the possibility of unrelated persons quickly opening the accommodating cavity to steal items;

[0024] 2. By providing a sponge cushion layer, it is possible to reduce the situation where the back of a user directly contacts the first zipper when the user wears the backpack body, thereby increasing the comfort of the user when wearing the backpack. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the present embodiment from another angle, mainly showing the third zipper;

[0026] Figure 2 yes Figure 1 A local enlarged view of point A;

[0027] Figure 3 is a partial cross-sectional view of the connection assembly of this embodiment;

[0028] Figure 4 It is a schematic structural diagram of this embodiment, mainly showing the first zipper.

[0029] Explanation of the accompanying drawings: 1. backpack body; 11. sponge cushion layer; 2. first zipper; 21. decorative belt; 3. second zipper; 31. chain; 32. chain head; 33. dovetail groove; 34. fixing groove; 4. connecting assembly; 41. connecting block; 42. anti-slip part; 421. first spring; 422. mounting block; 423. plug-in block; 424. unlocking rod; 43. dovetail block; 44. connecting groove; 45. movable groove; 46. unlocking groove; 5. third zipper; 51. second collecting bag; 52. third collecting bag. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The embodiment of the present application discloses an anti-theft backpack.

[0032] Reference Figure 1 and Figure 2 An anti-theft backpack includes a backpack body 1, wherein the backpack body 1 has a storage cavity for storing items, and the backpack body 1 is provided with a second zipper 3, and the second zipper 3 is used to open and close the storage cavity. The second zipper 3 includes two chains 31 and two chain heads 32, the two chains 31 are sewn to the backpack body 1, and the two chain heads 32 are connected to the two chains 31. When the two chain heads 32 are close to each other and abut against each other, the storage cavity is in a closed state.

[0033] Reference Figure 3 The two chain heads 32 are connected by a connecting assembly 4, which includes a connecting block 41, an anti-dropping member 42, and two dovetail blocks 43. The connecting block 41 is connected to one of the chain heads 32 through a flexible rope; the two dovetail blocks 43 are connected to the connecting block 41, and the dovetail blocks 43 and the connecting block 41 are integrally formed to increase the connection strength between the dovetail blocks 43 and the connecting block 41. The chain head 32 is provided with a dovetail groove 33 for the dovetail block 43 to be inserted, and the anti-dropping member 42 is used to prevent the dovetail block 43 from being separated from the dovetail groove 33.

[0034] The anti-dropping member 42 includes a first spring 421, a mounting block 422 and two plug-in blocks 423. A connecting groove 44 is provided inside the connecting block 41. The mounting block 422 is movably installed in the connecting groove 44. The two ends of the first spring 421 are respectively fixed to the mounting block 422 and the inner wall of the connecting groove 44. The elastic force of the first spring 421 is used to drive the mounting block 422 to move toward one side of the unlocking rod 424. An unlocking groove 46 connected to the connecting groove 44 is provided on one side of the connecting block 41 close to the dovetail block 43. An unlocking rod 424 is movably installed in the unlocking groove 46. The unlocking rod 424 is inserted through the connecting groove 44 and fixed to the connecting block 41. When the elastic force of the first spring 421 drives the connecting block 41 to move toward one side of the dovetail block 43, the unlocking rod 424 partially protrudes from the unlocking groove 46 and is exposed to the outside.

[0035] A movable groove 45 is provided at the end of the dovetail block 43 away from the connecting block 41, and the movable groove 45 is connected to the connecting groove 44. The plug-in block 423 is inserted into the connecting groove 44 and fixed to the mounting block 422; a guide surface for guiding the plug-in block 423 to enter the movable groove 45 is provided on one side of the plug-in block 423, and a positioning surface is provided on the other side of the plug-in block 423, and the distance between the guide surface and the positioning surface gradually increases from the end away from the unlocking rod 424 to the end close to the unlocking rod 424; the unlocking groove 46 is provided with a fixed groove 34 for the plug-in block 423 to be plugged in.

[0036] Reference Figure 1 In this embodiment, a second collecting bag 51 and a third collecting bag 52 are provided on the front of the backpack body 1. The second collecting bag 51 and the third collecting bag 52 are both provided with a third zipper 5. The third zipper 5 has the same structure as the second zipper 3, which will not be described in detail here.

[0037] Reference Figure 4 The backpack body 1 is provided with a first collection bag, which is made of cut-resistant cloth material to reduce the situation where unauthorized personnel cut the first collection bag to take out items. The back side of the backpack body 1 is provided with a first zipper 2, which is used to open and close the inside of the first collection bag.

[0038] The back side of the backpack body 1 is provided with a sponge pad 11, which can abut against the back of the user, so that there is a gap between the back of the user and the first zipper 2, which increases the comfort of the user wearing the backpack body 1. The sponge pad 11 has pores, which can increase the air permeability of the backpack body 1.

[0039] The back side of the backpack body 1 has a decorative tape 21 , one side of which is connected to the sponge pad 11 . The decorative tape 21 covers the surface of the first zipper 2 to hide the first zipper 2 , thereby reducing the possibility of unauthorized persons quickly discovering the first zipper 2 .

[0040] The implementation principle of an anti-theft backpack in the embodiment of the present application is:

[0041] When the user wears the backpack, the first zipper 2 is located on a side close to the user's back, so that the first zipper 2 can be hidden, which can reduce the possibility of unauthorized persons discovering the first zipper 2 and opening it, thereby increasing the anti-theft effect of the backpack.

[0042] In addition, the dovetail block 43 on the connecting block 41 is plugged into the dovetail groove 33, so that the two chain heads 32 can be connected, reducing the movement of the two chain heads 32 toward the side away from each other; when the movable groove 45 is arranged opposite to the fixed groove 34, the elastic force of the first spring 421 drives the plug-in block 423 to be plugged into the fixed groove 34, reducing the possibility of the dovetail block 43 being separated from the dovetail groove 33; thereby completing the connection between the two chain heads 32 and reducing the situation where some irrelevant personnel quickly open the zipper to take out items in the storage cavity.

[0043] By arranging the unlocking slot 46 on a side close to the unlocking rod 424, the unlocking rod 424 can be hidden, reducing the possibility of unauthorized persons observing the position of the unlocking rod 424 to achieve quick unlocking, thereby increasing the anti-theft performance of the backpack.

[0044] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An anti-theft backpack, characterized in that: The backpack body (1) comprises a backpack body (1), the backpack body (1) being provided with a first collecting bag, the back side of the backpack body (1) being provided with a first zipper (2), the first zipper (2) being used to open and close the first collecting bag; the backpack body (1) having a storage cavity inside, the backpack body (1) being provided with a second zipper (3) for opening and closing the storage cavity, the second zipper (3) comprising two chains (31) and two chain heads (32), the two chains (31) being connected to the backpack body (1) respectively, the second zipper (3) being connected to the second chain head (32) and the second chain head (32) being connected to the second chain head (31 ... The chain head (32) is connected to the two chains (31), and the two chain heads (32) are connected via a connecting assembly (4); the connecting assembly (4) comprises a connecting block (41) and two dovetail blocks (43); the connecting block (41) is connected to one of the chain heads (32); the two dovetail blocks (43) are both fixed to the connecting block (41); the chain head (32) is provided with a dovetail groove (33) for the dovetail block (43) to be inserted; and the connecting block (41) is provided with an anti-dropping member (42).

2. The anti-theft backpack according to claim 1, characterized in that: The two dovetail blocks (43) and the connecting block (41) are integrally formed.

3. The anti-theft backpack according to claim 1, characterized in that: The anti-dropping member (42) comprises a first spring (421), a mounting block (422) and two plug-in blocks (423); the connecting block (41) is provided with a connecting groove (44), and the mounting block (422) is movably mounted in the connecting groove (44); two ends of the first spring (421) are respectively connected to the mounting block (422) and the inner wall of the connecting groove (44); the elastic force of the first spring (421) is used to drive the mounting block (422) to move toward one side of the unlocking rod (424); The unlocking rod (424) is provided with a movable groove (45) connected to the connecting groove (44); the plug-in block (423) is movably mounted in the movable groove (45) and connected to the mounting block (422); and the dovetail groove (33) is provided with a fixed groove (34) for the plug-in block (423) to be plugged in.

4. The anti-theft backpack according to claim 3, characterized in that: An unlocking groove (46) communicating with the connecting groove (44) is provided on one side of the connecting block (41) close to the unlocking rod (424). The unlocking rod (424) is movably mounted in the unlocking groove (46), and the unlocking rod (424) is connected to the mounting block (422).

5. The anti-theft backpack according to claim 3, characterized in that: The plug-in block (423) is provided with a guide surface for guiding the plug-in block (423) to enter the movable groove (45).

6. The anti-theft backpack according to claim 1, characterized in that: A sponge cushion layer (11) is protrudingly provided on the back side of the backpack body (1).

7. The anti-theft backpack according to claim 1, characterized in that: A decorative belt (21) is provided on the back side of the backpack body (1), and the decorative belt (21) covers the surface of the first zipper (2).

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