Anti-theft backpack

Abstract

The utility model relates to the technical field of shielding supports, in particular to an anti-theft backpack. The knapsack comprises a knapsack body, a shielding device is arranged outside the knapsack body and comprises a fixing plate, one side of the fixing plate is fixedly connected with the knapsack body, a T-shaped groove is formed in one side of the fixing plate, a T-shaped plate is slidably connected into the T-shaped groove, a shielding plate is fixedly connected to one side of the T-shaped plate, and the other side of the shielding plate is fixedly connected with the knapsack body. A limiting opening is formed in one side of the shielding plate, round blocks are slidably connected into the limiting opening, a moving plate is fixedly connected to one ends of the two round blocks, two telescopic rods are fixedly connected to one side of the moving plate, and a mounting plate is fixedly connected to one ends of the two telescopic rods. The problems that according to a traditional anti-theft knapsack, a lock catch is used for enhancing the anti-theft function of the knapsack, but the lock catch can be easily opened, so that articles in the knapsack are easily stolen by lawbreakers, and the anti-theft effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding brackets, in particular to an anti-theft backpack. Background Art

[0002] Backpacks can hold a large number of items and are easy to carry. They have become a must-have item for people when traveling. There are also various types of backpacks on the market to meet people's various needs.

[0003] For example, publication number CN204635386U discloses an anti-theft backpack comprising a backpack body and a zipper fastener disposed on the backpack body. The zipper fastener comprises a first zipper puller and a second zipper puller that can be pulled opposite each other, each of the first zipper puller and the second zipper puller being provided with a locking buckle that interlocks with each other. This backpack has a certain anti-theft function, preventing the zipper fastener from being easily opened, and has a simple structure and low cost.

[0004] The above patent has a certain anti-theft function by installing a lock on the closed zipper, but there is still a problem that the lock can be opened easily, making it easier for criminals to steal the items inside the backpack, and the anti-theft effect is poor. Therefore, there is a need for an anti-theft backpack that can hide and block the backpack zipper to make it difficult for criminals to open the zipper. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that traditional anti-theft backpacks in the prior art use a lock to enhance the anti-theft function of the backpack, but the lock can be opened easily, resulting in the items inside the backpack being easily stolen by criminals and the anti-theft effect being poor.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an anti-theft backpack, comprising a backpack body, a shielding device being provided on the outside of the backpack body, the shielding device comprising a fixing plate, one side of the fixing plate being fixedly connected to the backpack body, a T-shaped slot being provided on one side of the fixing plate, a T-shaped plate being slidably connected inside the T-shaped slot, a shielding plate being fixedly connected to one side of the T-shaped plate, a limiting opening being provided on one side of the shielding plate, a round block being slidably connected inside the limiting opening, one end of two of the round blocks being fixedly connected to a movable plate, one side of the movable plate being fixedly connected to two telescopic rods, one end of the two telescopic rods being fixedly connected to a mounting plate, one side of the mounting plate being fixedly connected to the backpack body, a spring being sleeved on the arc surface of the telescopic rod, and the two ends of the two springs being fixedly connected to the mounting plate and the movable plate respectively.

[0007] The effects achieved by the above components are as follows: The moving plate is pulled away from the backpack body. At this time, the telescopic rod and the spring are in a stretched state. After the telescopic rod reaches its maximum output, the shielding plate can be moved towards the moving plate, aligning the limiting port and the round block. When the pulled moving plate is released, the spring and the telescopic rod contract, causing the round block to slide into the limiting port to limit the shielding plate.

[0008] Preferably, one end of the fixing plate is fixedly connected with a limiting block, and the limiting block is square.

[0009] The effects achieved by the above components are as follows: The effect of fixing the limiting block and the fixing plate is achieved.

[0010] Preferably, a pulling port is provided on one side of the moving plate, and a screw rod is threadedly connected to one side of the moving plate.

[0011] The effects achieved by the above components are as follows: The effect of facilitating the pulling of the moving plate by providing the pulling port on the moving plate is achieved.

[0012] Preferably, one end of the screw rod is fixedly connected with a rotating block.

[0013] The effects achieved by the above components are as follows: The effect of the rotating block driving the screw rod to rotate is achieved.

[0014] Preferably, the arc surface of the screw rod is threadedly connected with an internal thread ring, and one end of the internal thread ring is fixedly connected with the mounting plate.

[0015] The effects achieved by the above components are as follows: The effect of the screw rod and the internal thread ring being adapted to each other is achieved.

[0016] Preferably, a protection device is provided outside the backpack body. The protection device includes two slot plates. One side of the two slot plates close to each other is fixedly connected with the backpack body, and a rubber rod is press-fitted inside the slot plate.

[0017] The effects achieved by the above components are as follows: The effect of the rubber rod and the slot plate being adapted to each other is achieved.

[0018] Preferably, an L-shaped plate is fixedly connected to one side of the rubber rod, and a protection plate is fixedly connected to one side of the two L-shaped plates.

[0019] The effects achieved by the above components are as follows: The effect of the protection plate driving the L-shaped plate and the rubber rod to be fixed is achieved.

[0020] Preferably, a protection board is fixedly connected to one side of the protection plate, and a wire mesh is fixedly connected to one side of the protection plate.

[0021] The effects achieved by the above components are as follows: The effect of the protection board, the protection plate, and the wire mesh providing protection is achieved.

[0022] Preferably, one side of the wire mesh is fixedly connected with a wear-resistant cloth, and one side of the wear-resistant cloth is slidably connected with the backpack body.

[0023] The effects achieved by the above components are as follows: The wear-resistant cloth and the wire mesh are fixed, preventing the wire mesh from contacting the backpack body and causing wear to the backpack body.

[0024] In summary, the beneficial effects of the present utility model are as follows:

[0025] In the present utility model, through the shielding device, when it is necessary to prevent the backpack zipper from being easily opened, the zipper of the backpack body is pulled to the side provided with the shielding device to complete the closing of the backpack body, and the zipper is covered by the shielding plate. Through the shielding device, the problem that in the traditional anti-theft backpack, a lock is used to enhance the anti-theft function of the backpack, but the lock can be easily opened, resulting in the items inside the backpack being relatively easily stolen by lawbreakers and the anti-theft effect being poor is solved.

[0026] In the present utility model, through the protection device, when it is necessary to prevent lawbreakers from cutting open the bottom of the backpack, the protection plate is located at the bottom of the backpack body, and the protection board is located outside the backpack body, thereby achieving the protection of the backpack body. Through the protection device, the problem that in the traditional anti-theft backpack, the anti-cutting effect is not good, and lawbreakers will use sharp objects such as blades to cut open the backpack, damaging the backpack and stealing valuable items is solved. Brief Description of the Drawings

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0028] Figure 2 is a structural schematic diagram of the shielding structure of the present utility model;

[0029] Figure 3 is a partial structural schematic diagram of the shielding structure of the present utility model;

[0030] Figure 4 is a structural schematic diagram of the protection structure of the present utility model.

[0031] Legend Explanation: 1. Backpack body; 2. Shielding device; 201. Fixed plate; 202. T-shaped groove; 203. T-shaped plate; 204. Shielding plate; 205. Limit block; 206. Limit port; 207. Round block; 208. Moving plate; 209. Pulling port; 210. Expansion rod; 211. Spring; 212. Mounting plate; 213. Internal thread ring; 214. Screw rod; 215. Rotating block; 3. Protection device; 31. Card slot plate; 32. Rubber rod; 33. L-shaped plate; 34. Protection plate; 35. Wire mesh; 36. Wear-resistant cloth; 37. Protection board. Detailed Description of the Embodiment

[0032] Reference Figure 1 As shown, the present utility model provides a technical solution: an anti-theft backpack, which includes a backpack body 1, a shielding device 2 is provided outside the backpack body 1, and a protection device 3 is provided outside the backpack body 1.

[0033] Next, specifically describe the specific settings and functions of its fixing device 2 and supporting device 3.

[0034] Reference Figure 2 and Figure 3 As shown, in this implementation: The shielding device 2 includes a fixing plate 201. One side of the fixing plate 201 is fixedly connected to the backpack body 1. A T-shaped groove 202 is opened on one side of the fixing plate 201. A T-shaped plate 203 is slidably connected inside the T-shaped groove 202. One side of the T-shaped plate 203 is fixedly connected to a shielding plate 204. A limiting port 206 is opened on one side of the shielding plate 204. A round block 207 is slidably connected inside the limiting port 206. One end of two round blocks 207 is fixedly connected to a moving plate 208. Two telescopic rods 210 are fixedly connected to one side of the moving plate 208. One end of two telescopic rods 210 is fixedly connected to a mounting plate 212. One side of the mounting plate 212 is fixedly connected to the backpack body 1. A spring 211 is sleeved on the arc surface of the telescopic rod 210. Two ends of two springs 211 are respectively fixedly connected to the mounting plate 212 and the moving plate 208. The effect is achieved that the moving plate 208 is pulled in a direction away from the backpack body 1. At this time, the telescopic rod 210 and the spring 211 are in a stretched state. After the telescopic rod 210 reaches its maximum output, the shielding plate 204 can be moved in a direction close to the moving plate 208, so that the limiting port 206 and the round block 207 are aligned. When the pulled moving plate 208 is released, the spring 211 and the telescopic rod 210 contract to make the round block 207 slide into the limiting port 206 to limit the shielding plate 204. One end of the fixing plate 201 is fixedly connected to a limiting block 205, and the limiting block 205 is square. The effect of fixing the limiting block 205 and the fixing plate 201 is achieved. A pulling port 209 is opened on one side of the moving plate 208. A screw rod 214 is threadedly connected to one side of the moving plate 208. The effect of opening the pulling port 209 on the moving plate 208 to facilitate pulling the moving plate 208 is achieved. One end of the screw rod 214 is fixedly connected to a rotating block 215. The effect of the rotating block 215 rotating to drive the screw rod 214 to rotate is achieved. The arc surface of the screw rod 214 is threadedly connected to an internal thread ring 213, and one end of the internal thread ring 213 is fixedly connected to the mounting plate 212. The effect of the screw rod 214 and the internal thread ring 213 being adapted to each other is achieved.

[0035] Reference Figure 4As shown in the figure, in this embodiment: The protection device 3 includes two slot plates 31. The sides of the two slot plates 31 close to each other are fixedly connected to the backpack body 1. A rubber rod 32 is connected to the inside of the slot plate 31 with an interference fit, achieving the effect that the rubber rod 32 and the slot plate 31 are adapted to each other. One side of the rubber rod 32 is fixedly connected to an L-shaped plate 33, and one side of the two L-shaped plates 33 is fixedly connected to a protection plate 34, achieving the effect that the movement of the protection plate 34 drives the L-shaped plate 33 and the rubber rod 32 to be fixed. One side of the protection plate 34 is fixedly connected to a protection board 37, and one side of the protection plate 34 is fixedly connected to a wire mesh 35, achieving the effect that the protection board 37, the protection plate 34, and the wire mesh 35 play a protective role. One side of the wire mesh 35 is fixedly connected to an abrasion-proof cloth 36, and one side of the abrasion-proof cloth 36 is slidably connected to the backpack body 1, achieving the effect that the abrasion-proof cloth 36 and the wire mesh 35 are fixed to prevent the wire mesh 35 from contacting the backpack body 1 and causing wear to the backpack body 1.

[0036] Working principle: Through the shielding device 2, when it is necessary to prevent the backpack zipper from being easily opened, the operator first closes the backpack body 1 by pulling the zipper of the backpack body 1 to the side where the shielding device 2 is provided. Then, rotate the rotating block 215 to completely disengage the screw rod 214 from the internal thread ring 213 to eliminate the limit on the moving plate 208. Then, pull the moving plate 208 away from the backpack body 1. At this time, the telescopic rod 210 and the spring 211 are in a stretched state. After the telescopic rod 210 outputs to the maximum limit, the shielding plate 204 can be moved towards the moving plate 208 to align the limiting port 206 and the round block 207. Release the pulled moving plate 208. The spring 211 and the telescopic rod 210 contract to make the round block 207 slide into the limiting port 206 to limit the shielding plate 204. The shielding plate 204 completely shields the backpack body 1 zipper to prevent criminals from pulling the zipper. Through the shielding device 2, the problem that in traditional anti-theft backpacks, a lock is used to enhance the anti-theft function of the backpack, but the lock can be easily opened, resulting in the items inside the backpack being relatively easily stolen by criminals and the anti-theft effect being poor is solved.

[0037] Through the protection device 3, when it is necessary to prevent criminals from cutting open the bottom of the backpack, the operator first installs the slot plates 31 on both sides of the backpack body 1, and then snaps the rubber rods 32 into the slot plates 31. At this time, the protection plate 34 is at the bottom of the backpack body 1, and the protection board 37 is on the outside of the backpack body 1, thereby achieving the protection of the backpack body 1. Through the protection device 3, the problem that in traditional anti-theft backpacks, the anti-cutting effect is not good, and criminals will use sharp objects such as blades to cut open the backpack, causing the backpack to be damaged and stealing valuable items is solved.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. An anti-theft backpack, comprising a backpack body (1), characterized in that: An occlusion device (2) is provided outside the backpack body (1). The occlusion device (2) includes a fixing plate (201). One side of the fixing plate (201) is fixedly connected to the backpack body (1). A T-shaped groove (202) is formed on one side of the fixing plate (201). A T-shaped plate (203) is slidably connected inside the T-shaped groove (202). One side of the T-shaped plate (203) is fixedly connected to a shielding plate (204). A limiting opening (206) is formed on one side of the shielding plate (204). A round block (207) is slidably connected inside the limiting opening (206). One end of the two round blocks (207) is fixedly connected to a moving plate (208). Two telescopic rods (210) are fixedly connected to one side of the moving plate (208). One end of the two telescopic rods (210) is fixedly connected to a mounting plate (212). One side of the mounting plate (212) is fixedly connected to the backpack body (1). Springs (211) are sleeved on the arc surfaces of the telescopic rods (210). Two ends of the two springs (211) are respectively fixedly connected to the mounting plate (212) and the moving plate (208).

2. The anti-theft backpack according to claim 1, wherein: A limiting block (205) is fixedly connected to one end of the fixing plate (201). The limiting block (205) is square-shaped.

3. The anti-theft backpack according to claim 1, characterized in that: A pulling opening (209) is formed on one side of the moving plate (208). A screw rod (214) is threadedly connected to one side of the moving plate (208).

4. The anti-theft backpack according to claim 3, characterized in that: One end of the screw rod (214) is fixedly connected to a rotating block (215).

5. The anti-theft backpack according to claim 4, characterized in that: An internal thread ring (213) is threadedly connected to the arc surface of the screw rod (214). One end of the internal thread ring (213) is fixedly connected to the mounting plate (212).

6. The anti-theft backpack according to claim 1, characterized in that: A protection device (3) is provided outside the backpack body (1). The protection device (3) includes two clamping groove plates (31). One side of the two clamping groove plates (31) close to each other is fixedly connected to the backpack body (1). A rubber rod (32) is press-fitted inside the clamping groove plate (31).

7. The anti-theft backpack according to claim 6, characterized in that: One side of the rubber rod (32) is fixedly connected to an L-shaped plate (33). One side of the two L-shaped plates (33) is fixedly connected to a protection plate (34).

8. The anti-theft backpack according to claim 7, wherein: One side of the protection plate (34) is fixedly connected to a protection board (37). One side of the protection plate (34) is fixedly connected to a wire mesh (35).

9. The anti-theft backpack according to claim 8, wherein: One side of the wire mesh (35) is fixedly connected to an anti-abrasion cloth (36). One side of the anti-abrasion cloth (36) is slidably connected to the backpack body (1).

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