Safety backpack with anti-theft alarm system

Abstract

The invention discloses a safety backpack with an anti-theft alarm system, and belongs to the technical field of safety backpacks. A safety knapsack with an anti-theft alarm system comprises a knapsack body, an inner cavity is formed in the knapsack body, a lining layer attached to the inner wall of the inner cavity is detachably arranged in the inner cavity, a concave part is arranged on the outer wall of the lining layer, an annular loop arranged in a snake shape is arranged in the concave part, and a controller is arranged at the annular loop. The controller is used for sending a first electric signal when the annular loop is short-circuited, and the flexible layer is filled between the lining layer and the inner cavity; the backpack body is provided with an attaching part attached to the back. The snake-shaped annular loop is arranged on the inner lining layer of the backpack and matched with the controller, the control assembly and the vibration motor, when the backpack is cut open by the blade, the annular loop can be short-circuited, the controller can immediately send a first electric signal, the control assembly drives the vibration motor to work after receiving the first electric signal, and therefore a vibration alarm is sent to a user; and a user can be reminded more directly and effectively.

Description

Technical Field

[0001] The present invention relates to the technical field of safety backpacks, in particular to a safety backpack with an anti-theft alarm system. Background Art

[0002] Backpacks are an indispensable item for people. No matter men, women, old or young, they cannot do without backpacks when going out. Backpacks bring great convenience to people.

[0003] However, the anti-theft problem of existing backpacks has always been a problem that troubles people, especially for backpacks carried on the back. Due to the lack of an anti-theft system, the zipper of the backpack is easily opened, and sharp objects such as blades can easily cut the backpack, resulting in poor security. Summary of the invention

[0004] The invention provides a safety backpack with an anti-theft alarm system, which can overcome certain defects of the prior art.

[0005] According to the present invention, a safety backpack with an anti-theft alarm system comprises a backpack body, an inner cavity is formed inside the backpack body, an inner lining layer is detachably provided in the inner cavity and is in contact with the inner wall of the inner cavity, a recess is provided at the outer wall of the inner lining layer, a serpentine annular loop is provided in the recess, a controller is provided at the annular loop, and the controller is used to send a first electrical signal when a short circuit occurs in the annular loop, and a flexible layer is filled between the inner lining layer and the inner cavity;

[0006] The backpack body has a fitting portion that fits with the back, a protective plate is formed at the position of the inner lining layer corresponding to the fitting portion, a matching cavity opening upward is formed inside the inner lining layer, an inner liner is detachably provided inside the matching cavity, an installation cavity is formed between the inner liner and the bottom wall of the matching cavity, a control component electrically connected to the annular circuit and a vibration motor electrically connected to the protective plate are provided inside the installation cavity, and the control component is used to drive the vibration motor to work after receiving a first electrical signal.

[0007] Preferably, a first plug-in groove is formed on the inner wall of the matching cavity, a convex portion corresponding to the first plug-in groove is formed on the outer wall of the inner liner, and a locking component for connecting the inner liner and the inner lining is provided on the inner wall of the storage cavity.

[0008] The plug-in arrangement makes the installation and removal of the inner liner simple and quick, and the user can replace or clean the inner liner without using complicated tools or steps.

[0009] Preferably, the locking assembly includes a mounting tube that is detachably arranged on the inner wall of the storage cavity, a horizontally arranged sliding cavity is formed inside the mounting tube, a sliding plate is slidably provided in the sliding cavity, an extension portion that penetrates the inner liner is formed at one end of the sliding plate close to the inner lining layer, and an extension plate is formed on the outer wall of the extension portion; a rotating portion that penetrates the mounting tube is formed at one end of the sliding plate away from the extension portion, the rotating portion is used to drive the extension plate to rotate, and the extension portion is sleeved with a compression spring, which is arranged between the sliding plate and the storage cavity.

[0010] With the above structure, when in use, the user presses the rotating part by hand to make the extension plate extend into the guard plate, and then rotates the rotating part to align the extension plate with the first slot and lock it into the first slot. The operation is simple and the inner liner can be installed and removed quickly.

[0011] Preferably, a first clamping slot cooperating with the extension plate is formed at a position corresponding to the first plugging slot, and the first clamping slot is used to limit the extension plate.

[0012] The matching design of the first card slot and the extension plate provides additional stability for locking the inner liner and the inner lining layer. Even if the backpack is subjected to external impact or vibration during carrying or use, the inner liner is not easy to fall off or shift.

[0013] Preferably, an opening portion connected to the inner cavity is formed at the top of the backpack body, and a zipper assembly is provided at the opening portion, the zipper assembly includes a dental chain provided at the opening portion and a first zipper head body and a second zipper head body installed opposite to the dental chain, a first fastener and a second fastener for rotatably installing a pull tab are fixed on the top of the first zipper head body and the second zipper head body, respectively, a second fastener is provided at the opposite end of the second fastener to the first fastener, a second plug-in groove is provided at the opposite end of the first fastener to the second fastener, a sliding cavity is provided inside the sliding cavity, a locking assembly for engaging with the second plug-in groove is provided inside the sliding cavity, a through groove is provided in communication with the top of the sliding cavity, and a pressing assembly for releasing the engagement between the locking assembly and the second plug-in groove is provided in the through groove for sliding.

[0014] Preferably, a second slot is provided at the top of the inner wall of the second plugging slot, and the top of the outer side of the inner wall of the second plugging slot is inclined inwards;

[0015] The above structure facilitates the insertion of the card block on the plug-in block into the plug-in slot and the positioning of the card block.

[0016] The locking assembly includes an insert block slidably arranged in the sliding cavity, the sliding cavity is connected to a through hole at one end close to the second zipper head body, one end of the insert block movably passing through the through hole is fixed with a locking block for locking with the second locking groove, and a first spring for pushing the insert block upward is fixed between the bottom of the insert block and the sliding cavity.

[0017] Through the above structure, when the tail opposite ends of the first zipper head body and the second zipper head body are clamped together, the baffle plate and the clamping block on the baffle plate are clamped in the second clamping groove, so that the clamping connection between the first zipper head body and the second zipper head body can be achieved, which facilitates the zipper pin to be inserted into place at one time.

[0018] Preferably, a baffle for closing the through-opening is fixedly provided at the bottom of one end of the plug-in block close to the through-opening, and the length of the baffle is greater than the distance between the bottom of the plug-in block and the through-opening.

[0019] With the above structure, the through opening can be kept in a closed state all the time, thus preventing dust from entering and affecting the first spring.

[0020] Preferably, the pressing assembly comprises a pressing block slidably arranged in the through groove, and the bottom of the pressing block close to one end of the second zipper head body is fixedly connected to the top of the plug-in block.

[0021] Through the above structure, after the zipper pin is inserted, pressing the pressure block on the first fastener can press the plug-in block downward, thereby disengaging the second card slot from limiting the block on the plug-in block, making it easier to separate the first zipper head body and the second zipper head body.

[0022] Preferably, a guide groove is provided at the bottom of one end of the through groove away from the sliding cavity, and a second spring for pushing the pressing block upward is fixedly provided between the bottom of the inner wall of the guide groove and the bottom of the pressing block.

[0023] Through the above structure, the pressing block can be pressed down along the through slot more stably, and the provision of the second spring ensures that the pressing block is always in a state to be pressed.

[0024] Preferably, a groove is provided at the bottom of the opposite end of the second zipper head body and the first zipper head body, and a connecting block for matching with the groove is provided at the bottom of the opposite end of the first zipper head body and the second zipper head body.

[0025] Through the above structure, the positions of the first zipper head body and the second zipper head body can be quickly located, which can not only locate the positions of the first zipper head body and the second zipper head body so that the positioning component and the insertion slot can be quickly aligned, but also cooperate with the positioning component and the insertion slot to play a certain limiting role.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. By setting a serpentine ring loop on the inner lining of the backpack, and cooperating with a controller, a control component and a vibration motor, when the backpack is cut by a blade, the ring loop will be short-circuited, and the controller will immediately send a first electrical signal. After receiving the first electrical signal, the control component drives the vibration motor to work, thereby sending a vibration alarm to the user, which can remind the user more directly and effectively.

[0028] 2. The lining layer, liner and control components of the backpack are all detachable, which is convenient for users to clean, repair and replace according to their needs. The multi-layer arrangement of the backpack body, lining layer and liner improves the safety of the backpack;

[0029] 3. By setting the zipper assembly, the zipper assembly can be locked, thereby improving the safety of the backpack. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a schematic diagram of the overall structure of a safety backpack with an anti-theft alarm system.

[0031] Figure 2 The figure is a schematic diagram of the overall side cross-sectional structure of a safety backpack with an anti-theft alarm system.

[0032] Figure 3 The present invention is a schematic diagram of the inner lining and inner liner structure of a safety backpack with an anti-theft alarm system.

[0033] Figure 4 The present invention is a schematic diagram of a top view cross-sectional structure of an inner liner of a safety backpack with an anti-theft alarm system.

[0034] Figure 5 for Figure 4 A partial enlarged schematic diagram in the middle.

[0035] Figure 6 The figure is a top view cross-sectional structural diagram of the inner lining layer of a safety backpack with an anti-theft alarm system.

[0036] Figure 7 for Figure 6 A partial enlarged schematic diagram of point B in the middle.

[0037] Figure 8 The figure is a schematic diagram of the ring loop structure of a safety backpack with an anti-theft alarm system.

[0038] Fig. 9 The present invention is a schematic diagram of the structure of a zipper assembly of a safety backpack with an anti-theft alarm system.

[0039] Fig.10 The present invention is a schematic diagram of the main structure of a first zipper head of a safety backpack with an anti-theft alarm system.

[0040] Fig.11 The present invention is a schematic diagram of the main structure of a second zipper head of a safety backpack with an anti-theft alarm system.

[0041] Fig.12 The present invention is a schematic diagram of the cross-sectional structure of the main body of a second zipper head of a safety backpack with an anti-theft alarm system.

[0042] 100, backpack body; 110, zipper assembly; 210, inner cavity; 211, opening; 220, lining layer; 221, matching cavity; 230, liner; 231, storage cavity; 240, control assembly; 310, convex portion; 320, first plug-in slot; 330, locking assembly; 510, mounting tube; 520, sliding plate; 530, extension portion; 540, extension plate; 550, rotating portion; 560, compression spring; 610, guard plate; 710, first card slot; 810, ring loop ;910, first zipper head body;920, second zipper head body;1010, first fastener;1020, positioning assembly;1030, connecting block;1110, second fastener;1120, second plug-in slot;1121, second slot;1130, groove;1210, sliding cavity;1220, through opening;1230, plug-in block;1240, baffle;1250, first spring;1260, through slot;1270, pressure block;1280, guide slot;1290, second spring. DETAILED DESCRIPTION

[0043] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0044] Example 1

[0045] See also Figure 1-8 The present embodiment provides a safety backpack with an anti-theft alarm system, which includes a backpack body 100, wherein an inner cavity 210 is formed inside the backpack body 100, wherein an inner lining layer 220 is detachably provided in the inner cavity 210 and is in contact with the inner wall of the inner cavity 210, wherein a recess is provided at the outer wall of the inner lining layer 220, wherein a serpentine annular loop 810 is provided in the recess, wherein a controller is provided at the annular loop 810, and the controller is used to send a first electrical signal when a short circuit occurs in the annular loop 810, and a flexible layer is filled between the inner lining layer 220 and the inner cavity 210;

[0046] The backpack body 100 has a fitting portion that fits with the back, and a protective plate 610 is formed at the position of the inner lining 220 corresponding to the fitting portion. A matching cavity 221 opening upward is formed inside the inner lining 220, and an inner liner 230 is detachably provided inside the matching cavity 221. An installation cavity is formed between the inner liner 230 and the bottom wall of the matching cavity 221, and a control component 240 electrically connected to the annular loop 810 and a vibration motor electrically connected to the protective plate 610 are provided inside the installation cavity. The control component 240 is used to drive the vibration motor to work after receiving a first electrical signal.

[0047] The control component 240 includes a power management circuit, a signal receiver, a battery and a transformer. The power management circuit is used to convert the electricity output by the battery into weak electricity for output.

[0048] The present invention discloses a safety backpack with an anti-theft alarm system. By setting a serpentine annular loop 810 on the inner lining layer 220 of the backpack, and cooperating with a controller, a control component 240 and a vibration motor, when the backpack is cut by a blade, the annular loop 810 will be short-circuited, and the controller will immediately send a first electrical signal. After receiving the first electrical signal, the control component 240 drives the vibration motor to work, thereby sending a vibration alarm to the user, which can remind the user more directly and effectively.

[0049] It can be understood that the lining layer 220, the inner liner 230 and the control component 240 of the backpack are all detachable, so that the user can clean, repair and replace them as needed. The multi-layer arrangement of the backpack body 100, the lining layer 220 and the inner liner 230 improves the safety of the backpack.

[0050] In this embodiment, a first plug-in groove 320 is formed on the inner wall of the matching cavity 221, a protrusion 310 corresponding to the first plug-in groove 320 is formed on the outer wall of the inner liner 230, and a locking assembly 330 for connecting the inner liner 230 and the inner lining layer 220 is provided on the inner wall of the storage cavity 231.

[0051] The plug-in arrangement makes the installation and removal of the inner liner 230 simple and quick, and the user can replace or clean the inner liner 230 without using complicated tools or steps.

[0052] In this embodiment, the locking assembly 330 includes a mounting tube 510 that is detachably arranged on the inner wall of the storage chamber 231, and a horizontally arranged sliding chamber is formed inside the mounting tube 510. A sliding plate 520 is slidably arranged in the sliding chamber, and an extension portion 530 that penetrates the inner liner 230 is formed at one end of the sliding plate 520 close to the lining layer 220, and an extension plate 540 is formed at the outer wall of the extension portion 530; a rotating portion 550 that penetrates the mounting tube 510 is formed at one end of the sliding plate 520 away from the extension portion 530, and the rotating portion 550 is used to drive the extension plate 540 to rotate, and the extension portion 530 is sleeved with a compression spring 560, and the compression spring 560 is arranged between the sliding plate 520 and the storage chamber 231.

[0053] Through the above structure, when in use, the user presses the rotating part 550 by hand to make the extension plate 540 extend into the protective plate 610, and then rotates the rotating part 550 to align the extension plate 540 with the first slot 710, and snaps into the first slot 710 to complete locking. The operation is simple and the inner liner 230 can be quickly installed and removed.

[0054] In this embodiment, a first clamping slot 710 that cooperates with the extension plate 540 is formed at a position corresponding to the first insertion slot 320 , and the first clamping slot 710 is used to limit the extension plate 540 .

[0055] The first card slot 710 and the extension plate 540 are designed to provide additional stability for locking the inner liner 230 and the inner lining 220. Even if the backpack is subjected to external impact or vibration during carrying or use, the inner liner 230 is not easy to fall off or shift.

[0056] Example 2

[0057] See Figure 9-12 This embodiment also provides a safety backpack with an anti-theft alarm system, which is different from the first embodiment in that an opening 211 communicating with the inner cavity 210 is formed at the top of the backpack body 100, and a zipper assembly 110 is provided at the opening 211. The zipper assembly 110 includes a tooth chain provided at the opening 211 and a first zipper head body 910 and a second zipper head body 920 installed opposite to the tooth chain. The tops of the first zipper head body 910 and the second zipper head body 920 are respectively fixed with a pull-tab rotation installation The first fastener 1010 and the second fastener 1110 are connected, and a second plug-in slot 1120 is provided at the opposite end of the second fastener 1110 and the first fastener 1010, and a sliding cavity 1210 is provided at the opposite end of the first fastener 1010 and the second fastener 1110. A locking component 1020 for locking with the second plug-in slot 1120 is provided inside the sliding cavity 1210, and a through groove 1260 is provided at the top of the sliding cavity 1210, and a pressing component for releasing the locking component 1020 from the second plug-in slot 1120 is slidably provided in the through groove 1260.

[0058] When the present embodiment is in use, when the tail opposite ends of the first zipper head body 910 and the second zipper head body 920 are connected, at this time, by aligning the connecting block 1030 and plugging it into the groove 1130, the baffle 1240 and the card block on the baffle 1240 are plugged into the second card groove 1121 along the second plug groove 1120, the first zipper head body 910 and the second zipper head body 920 can be accurately aligned on the chain belt. After the zipper latch is plugged in, the first fastener 1 is pressed. The pressure block 1270 on 010 can press the plug-in block 1230 downward, thereby disengaging the limiting position of the plug-in block 1230 by the second card slot 1121, and then the first zipper head body 910 can be pulled up to close the chain teeth. The plug-in is simple and the positioning is fast, ensuring that the first zipper head body 910 and the second zipper head body 920 are fixed and not easy to shake, making it easy for the zipper pin to be inserted into place at one time and quickly connected, so that the zipper assembly 110 can be locked, thereby improving the safety of the backpack.

[0059] In this embodiment, a second slot 1121 is provided at the top of the inner wall of the second plugging slot 1120, and the top of the outer side of the inner wall of the second plugging slot 1120 is inclined inwards;

[0060] Through the above structure, it is convenient to insert the card block on the plug-in block 1230 into the second plug-in slot 1120 and to limit the card block at the same time.

[0061] The locking assembly 1020 includes a plug-in block 1230 slidingly arranged in the sliding cavity 1210, and the sliding cavity 1210 is connected to a through opening 1220 at one end close to the second zipper head body 920. A blocking block for locking with the second slot 1121 is fixedly arranged at one end of the plug-in block 1230 that movably passes through the through opening 1220, and a first spring 1250 for pushing the plug-in block 1230 upward is fixedly arranged between the bottom of the plug-in block 1230 and the sliding cavity 1210.

[0062] Through the above structure, when the rear opposite ends of the first zipper head body 910 and the second zipper head body 920 are clamped together, the baffle 1240 and the clamping block on the baffle 1240 are clamped in the second clamping groove 1121, so that the clamping connection between the first zipper head body 910 and the second zipper head body 920 can be achieved, which facilitates the zipper pin to be inserted into place at one time.

[0063] In this embodiment, a baffle 1240 for closing the through-opening 1220 is fixedly provided at the bottom of one end of the plug-in block 1230 close to the through-opening 1220 , and the length of the baffle 1240 is greater than the distance between the bottom of the plug-in block 1230 and the through-opening 1220 .

[0064] Through the above structure, the opening 1220 can be kept in a closed state at all times, thereby preventing dust from entering and affecting the first spring 1250 .

[0065] In this embodiment, the pressing assembly includes a pressing block 1270 slidably disposed in the through slot 1260 , and the pressing block 1270 is fixedly connected to the top of the plug-in block 1230 at the bottom of one end close to the second zipper head body 920 .

[0066] Among them, an anti-slip groove is provided on the top of the pressing block 1270 and the top of the pressing block 1270 is set in the same arc as the first fastener 1010.

[0067] Through the above structure, after the zipper pin is inserted, pressing the pressure block 1270 on the first fastener 1010 can press the plug-in block 1230 downward, thereby disengaging the limiting position of the block on the plug-in block 1230 by the second card slot 1121, making it easier to separate the first zipper head body 910 and the second zipper head body 920.

[0068] In this embodiment, a guide groove 1280 is provided at the bottom of one end of the through groove 1260 away from the sliding cavity 1210 , and a second spring 1290 for pushing the pressing block 1270 upward is fixedly provided between the bottom of the inner wall of the guide groove 1280 and the bottom of the pressing block 1270 .

[0069] Through the above structure, the pressing block 1270 can be pressed down along the through slot 1260 more stably. At the same time, the provision of the second spring 1290 ensures that the pressing block 1270 is always in a state to be pressed.

[0070] In this embodiment, a groove 1130 is provided at the bottom of the opposite end of the second zipper slider body 920 and the first zipper slider body 910 , and a connecting block 1030 for matching with the groove 1130 is provided at the bottom of the opposite end of the first zipper slider body 910 and the second zipper slider body 920 .

[0071] Through the above structure, the positions of the first zipper head body 910 and the second zipper head body 920 can be quickly located. The positions of the first zipper head body 910 and the second zipper head body 920 can be located so that the positioning component 1020 and the second insertion slot 1120 can be quickly aligned, and the positioning component 1020 and the second insertion slot 1120 can also play a certain limiting role.

[0072] Among them, the tail of the first zipper head body 910 and the second zipper head body 920 can be provided with a flexible wire, the other end of the flexible wire is connected to the control component 240, and a second controller is provided at the flexible wire. The second controller is used to send a second electrical signal to the control component 240 when the first zipper head body 910 and the second zipper head body 920 are separated. After receiving the second electrical signal, the control component 240 drives the vibration motor to work.

[0073] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0074] The present invention and its implementation methods are described schematically above, and the description is not restrictive. The embodiments shown in the embodiments are only part of the implementation methods of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the embodiments and designs a structure and an implementation method similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A safety backpack with an anti-theft alarm system, characterized in that: The backpack body (100) comprises an inner cavity (210) formed inside the backpack body (100), an inner lining layer (220) which is detachably arranged in the inner cavity (210) and is in contact with the inner wall of the inner cavity (210), a recess is arranged at the outer wall of the inner lining layer (220), a serpentine annular loop (810) is arranged in the recess, a controller is arranged at the annular loop (810), and the controller is used to send a first electrical signal when a short circuit occurs in the annular loop (810), and a flexible layer is filled between the inner lining layer (220) and the inner cavity (210); The backpack body (100) has a fitting portion that fits with the back, and a protective plate (610) is formed at a position corresponding to the fitting portion of the inner lining layer (220). A matching cavity (221) opening upward is formed inside the inner lining layer (220), and an inner liner (230) is detachably provided inside the matching cavity (221). An installation cavity is formed between the inner liner (230) and the bottom wall of the matching cavity (221), and a control component (240) electrically connected to the annular loop (810) and a vibration motor electrically connected to the protective plate (610) are provided inside the installation cavity. The control component (240) is used to drive the vibration motor to work after receiving a first electrical signal.

2. A safety backpack with an anti-theft alarm system according to claim 1, characterized in that: A first plugging groove (320) is formed on the inner wall of the matching cavity (221), a convex portion (310) corresponding to and matching the first plugging groove (320) is formed on the outer wall of the inner liner (230), and a locking assembly (330) for connecting the inner liner (230) and the inner lining layer (220) is provided on the inner wall of the storage cavity (231).

3. A safety backpack with an anti-theft alarm system according to claim 2, characterized in that: The locking assembly (330) comprises a mounting tube (510) which is detachably arranged on the inner wall of the storage chamber (231); a horizontally arranged sliding chamber is formed inside the mounting tube (510); a sliding plate (520) is slidably arranged in the sliding chamber; an extension portion (530) penetrating the inner liner (230) is formed at one end of the sliding plate (520) close to the inner lining layer (220); an extension plate (540) is formed at the outer wall of the extension portion (530); a rotating portion (550) penetrating the mounting tube (510) is formed at one end of the sliding plate (520) away from the extension portion (530); the rotating portion (550) is used to drive the extension plate (540) to rotate; the extension portion (530) is sleeved with a compression spring (560), and the compression spring (560) is arranged between the sliding plate (520) and the storage chamber (231).

4. The safety backpack with anti-theft alarm system according to claim 2, characterized in that: A first clamping groove (710) matched with the extension plate (540) is formed at a position corresponding to the first insertion groove (320), and the first clamping groove (710) is used to limit the extension plate (540).

5. The safety backpack with anti-theft alarm system according to claim 1, characterized in that: An opening (211) communicating with the inner cavity (210) is formed at the top of the backpack body (100), and a zipper assembly (110) is provided at the opening (211). The zipper assembly (110) includes a tooth chain provided at the opening (211) and a first zipper head body (910) and a second zipper head body (920) installed opposite to each other at the tooth chain. A first fastener (1010) and a second fastener (1110) for rotatably installing a pull tab are fixed at the top of the first zipper head body (910) and the second zipper head body (920), respectively. A second plug-in slot (1120) is provided at the opposite end of the second fastener (1110) to the first fastener (1010), a sliding cavity (1210) is provided at the opposite end of the first fastener (1010) to the second fastener (1110), a locking assembly (1020) for locking with the second plug-in slot (1120) is provided inside the sliding cavity (1210), a through slot (1260) is provided at the top of the sliding cavity (1210), and a pressing assembly for releasing the locking assembly (1020) from the second plug-in slot (1120) is slidably provided inside the through slot (1260).

6. A safety backpack with an anti-theft alarm system according to claim 5, characterized in that: A second clamping groove (1121) is provided at the top of the inner wall of the second plug-in slot (1120), and the outer top of the inner wall of the second plug-in slot (1120) is inclined inwardly; the locking assembly (1020) comprises a plug-in block (1230) slidably arranged in the sliding cavity (1210), and a through opening (1220) is provided at one end of the sliding cavity (1210) close to the second zipper head body (920), and a clamping block for clamping with the second clamping groove (1121) is fixedly provided at one end of the plug-in block (1230) that movably passes through the through opening (1220), and a first spring (1250) for pushing the plug-in block (1230) upward is fixedly provided between the bottom of the plug-in block (1230) and the sliding cavity (1210).

7. A safety backpack with an anti-theft alarm system according to claim 6, characterized in that: A baffle (1240) for closing the through-opening (1220) is fixedly provided at the bottom of one end of the plug-in block (1230) close to the through-opening (1220), and the length of the baffle (1240) is greater than the distance between the bottom of the plug-in block (1230) and the through-opening (1220).

8. The safety backpack with anti-theft alarm system according to claim 5, characterized in that: The pressing assembly includes a pressing block (1270) slidably disposed in the through groove (1260), and the bottom of the pressing block (1270) close to one end of the second zipper head body (920) is fixedly connected to the top of the plug-in block (1230).

9. A safety backpack with an anti-theft alarm system according to claim 8, characterized in that: A guide groove (1280) is provided at the bottom of one end of the through groove (1260) away from the sliding cavity (1210), and a second spring (1290) for pushing the pressing block (1270) upward is fixedly provided between the bottom of the inner wall of the guide groove (1280) and the bottom of the pressing block (1270).

10. The safety backpack with anti-theft alarm system according to claim 5, characterized in that: A groove (1130) is provided at the bottom of the opposite end of the second zipper head body (920) and the first zipper head body (910), and a connecting block (1030) for matching with the groove (1130) is provided at the bottom of the opposite end of the first zipper head body (910) and the second zipper head body (920).

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