Single-shoulder and double-shoulder convertible backpack with anti-theft function
The convertible single-shoulder and double-shoulder backpack designed with a rotating plate and winding motor system solves the problem that traditional backpacks cannot switch modes, achieving a multifunctional, comfortable and safe backpack experience and having anti-theft function.
Patent Information
- Application Number
- CN202510841454.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-09-19
AI Technical Summary
Traditional backpacks cannot adapt to the switching needs of different scenarios and lack effective anti-theft functions.
A backpack that can be converted into a single shoulder or double shoulder bag is designed. The shoulder straps can be flexibly adjusted through a rotating plate and a winding motor system, and it is equipped with fingerprint recognition and buzzer anti-theft functions.
The backpack has achieved versatility and safety. Users can flexibly switch carrying modes according to their needs, which improves comfort and convenience. It also has anti-theft functions to ensure property safety.
Smart Images
Figure CN120660962A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a backpack, in particular to a backpack with an anti-theft knot function and convertible into a single-shoulder backpack and a double-shoulder backpack, belonging to the technical field of luggage. Background Art
[0002] A single-shoulder bag has the advantage of being small in size, making it suitable for carrying a small amount of items and ideal for daily commuting or social occasions. The backpack is always within sight when carried, making it suitable for crowded or low-security environments. A double-shoulder bag can evenly distribute the weight to both shoulders when carried, reducing unilateral pressure. It is suitable for carrying heavy loads for a long time, completely freeing your hands and making it suitable for scenarios where you need to hold other items.
[0003] However, with the diversification of people's travel needs, users have higher and higher requirements for the functionality of backpacks. Traditional backpacks can often only meet a single carrying mode and cannot adapt to the switching needs of different scenarios. At the same time, pickpocketing in public places has made users have higher requirements for the anti-theft function of backpacks. Therefore, backpacks with both anti-theft functions and convertible carrying modes came into being, meeting users' multiple needs for safety, practicality and flexibility.
[0004] Therefore, it is urgent to improve the backpack that can be converted into one shoulder and two shoulders to solve the above-mentioned problems. Summary of the Invention
[0005] The purpose of the present invention is to provide a convertible single-shoulder and double-shoulder backpack with an anti-theft knot function. By pulling out the upper shoulder strap and adjusting the direction by rotating the rotating plate, and snapping the upper shoulder strap and the lower adjustment strap into connection, single and double shoulder straps can be adjusted. In single shoulder strap mode, the other shoulder strap can be rolled up to keep it simple. Users can flexibly switch between single shoulder and double shoulder modes according to their needs, which not only improves the comfort and convenience of users, but also enhances the practicality and versatility of the backpack, realizing "one bag for multiple uses", reflecting the humanized and intelligent trend of backpack design, and taking into account practicality, comfort and fashion.
[0006] In order to achieve the above objectives, the main technical solutions adopted by the present invention include: A backpack that is convertible into a single-shoulder or double-shoulder backpack and has an anti-theft knot function, comprising a backpack body, a shoulder strap body symmetrically distributed on one side of the backpack body, the shoulder strap body comprising an upper shoulder strap and a lower adjustment strap that are snap-connected, the upper shoulder strap being connected to an end away from the lower adjustment strap with a winding motor, the winding motor being used to wind up the upper shoulder strap, the lower adjustment strap being connected to an end away from the upper shoulder strap with an electric electromagnetic brake winding roller, the electric electromagnetic brake winding roller being used to wind up the lower adjustment strap; A shoulder strap rotating mechanism is provided between the upper shoulder strap and the lower adjustment strap and the backpack body, the shoulder strap rotating mechanism includes a rotating plate and a fixed circular plate that are rotatably connected, the fixed circular plate is fixedly arranged on the inner side of the backpack body, a shoulder strap through hole is opened on the rotating plate, the upper shoulder strap passes through the shoulder strap through hole and is fixedly connected to the winding motor, and the lower adjustment strap passes through the shoulder strap through hole and is fixedly connected to the electric electromagnetic brake winding roller; The winding motor is connected to a winding motor protection box, the electric electromagnetic brake winding roller is connected to an electric winding roller protection box, an electric telescopic rod is fixedly provided on the winding motor protection box, and a U-shaped brake head is provided at the output end of the electric telescopic rod. Braking gears are provided at both ends of the winding motor, and the U-shaped brake head corresponds to the teeth on the winding motor. A pressure sensor is fixedly provided on the U-shaped brake head. The electric telescopic rod and the pressure sensor are electrically connected to a fingerprint recognition module, and the fingerprint recognition module is electrically connected to a central processing unit through a wire. The electric electromagnetic brake winding roller and the winding motor are both electrically connected to the central processing unit, and the central processing unit is electrically connected to a buzzer.
[0007] Preferably, a rotating plate slot is provided on the rotating plate, a rotating plate clamping head is fixedly provided on the fixed circular plate and is slidably connected to the rotating plate slot, the winding motor protective box is fixedly provided on the rotating plate, a protective plate 1 is fixedly provided on the winding motor protective box, and the stator of the winding motor is fixedly provided on the protective plate 1.
[0008] Preferably, a second protective plate is connected to the electric winding roller protection box, and the electric electromagnetic braking winding roller is fixedly arranged on the second protective plate.
[0009] Preferably, one end of the upper shoulder strap close to the lower adjustment strap is connected to a female clip through a shoulder strap connector, and one end of the lower adjustment strap close to the upper shoulder strap is connected to a male clip, and the female clip is fixed to the upper shoulder strap through the upper shoulder strap connector, and the other end of the female clip is provided with a slot, and one end of the male clip is provided with a plug that is engaged with the slot.
[0010] Preferably, a brake airbag groove is provided on the male card head, and a brake airbag is fixedly installed inside the brake airbag groove. Lock plate grooves are provided on the upper and lower sides of the plug, and a lock plate airbag is fixedly installed inside the lock plate groove. The lock plate airbag is connected to the brake airbag through a flow channel, wherein when the brake airbag is in an extruded state, the lock plate airbag is in an expanded state.
[0011] Preferably, the interior of the brake airbag groove is connected to an airbag brake plate via threads, and a handle is fixedly provided on the outer side of the airbag brake plate.
[0012] Preferably, a locking plate is fixedly provided on the outer side of the locking plate airbag, and the locking plate is slidably provided inside the locking plate groove. A locking opening corresponding to the locking plate is provided on the female clamp, and a spring is fixedly provided between the locking plate airbag and the locking plate groove, and the spring is used to pull the locking plate airbag.
[0013] Preferably, a male clamp connection groove is provided at one end of the male clamp away from the female clamp, and the lower adjustment belt is fixedly arranged inside the male clamp connection groove.
[0014] Preferably, an upper winding box and a lower winding box are fixedly provided inside the backpack body, the winding motor protection box is rotatably provided inside the upper winding box, and the electric winding roller protection box is rotatably provided inside the lower winding box.
[0015] Preferably, a battery is fixedly installed inside the backpack body, the battery is electrically connected to the central processing unit, the battery is electrically connected to a charging interface, and the charging interface and the buzzer are both fixedly installed on the outer side of the backpack body.
[0016] The present invention has at least the following beneficial effects: 1. Pull out the upper shoulder strap and adjust the direction by rotating the rotating plate, then pull out the lower adjustment strap diagonally below, and rotate it by the rotating plate as well, and snap the upper shoulder strap and the lower adjustment strap together to achieve single shoulder strap adjustment. In single shoulder strap mode, the other shoulder strap can be rolled up to avoid dragging. At the same time, the remaining upper shoulder strap and lower adjustment strap are hidden, leaving only one shoulder strap for crossbody or single shoulder carry, which is suitable for short-distance travel, quick access or fashionable matching. Users can choose the backpack to achieve single shoulder strap and double shoulder strap adjustment according to their needs, which not only improves the user's comfort and convenience, but also enhances the practicality and versatility of the backpack. Whether it is daily commuting, short trips or outdoor adventures, users can flexibly switch the carrying method according to their needs, truly realizing "one bag for multiple uses". This design not only meets the modern people's pursuit of efficient and convenient life, but also reflects the humanized and intelligent trend of backpack design, taking into account practicality, comfort and fashion.
[0017] 2. After the winding motor winds up the upper shoulder strap, it is necessary to brake the upper shoulder strap to prevent it from slipping out. Braking gears are fixed on both sides of the winding motor. When braking, the electric telescopic rod is started, so that the U-shaped brake head at the output end of the electric telescopic rod is stuck on the brake gear, thereby preventing the winding motor from rotating, and then braking the winding motor, so as to prevent the upper shoulder strap from being pulled out infinitely. The electric electromagnetic brake winding roller can both wind up the lower adjustment belt and brake the lower adjustment belt to prevent the lower adjustment belt from being pulled out infinitely, thereby improving the convenience of adjustment.
[0018] 3. A pressure sensor is fixed on the U-shaped brake head. When the upper shoulder strap is pulled without unlocking, the brake gear will be driven to rotate, and the brake gear will squeeze the pressure sensor. After processing the information, the central processor sends the information to the buzzer. The buzzer starts to beep to remind the user, which plays a certain anti-theft role and ensures the safety of the user's property. Of course, after the user is identified by the fingerprint recognition module, it is in the unlocked state and the buzzer is not started.
[0019] 4. After the lock plate airbag is inflated, it expands and drives the lock plate to slide upward. The lock plate slides out of the lock plate slot and enters the interior of the lock mouth, thereby locking the male card head and connecting the male card head and the female card head together. When unlocking, the airbag brake plate is rotated outward. The lock plate airbag is compressed under the action of the spring, and the lock plate is restored to the interior of the lock plate slot, making it easy to remove the plug on the male card head from the slot of the female card head, thereby unlocking the upper shoulder strap and the lower adjustment strap. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 The backpack of the present invention is three-dimensional Figure 1 ; Figure 2 The shoulder strap structure of the present invention Figure 1 ; Figure 3 This is a structural diagram of the winding motor of the present invention; Figure 4 The shoulder strap structure of the present invention Figure 2 ; Figure 5 This is a structural diagram of the shoulder strap rotation mechanism of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a structural diagram of the clamp head of the present invention; Figure 8 is a cross-sectional view of a backpack of the present invention; Figure 9 The backpack of the present invention is three-dimensional Figure 2 ; Figure 10 1 is an electrical schematic diagram of the present invention.
[0021] In the figure, 1. backpack body; 101. upper winding box; 102. lower winding box; 2. shoulder strap body; 201. upper shoulder strap; 202. lower adjustment strap; 3. male card head; 301. brake airbag slot; 302. brake airbag; 303. plug; 304. lock plate slot; 305. lock plate airbag; 306. spring; 307. lock plate; 308. flow channel; 309. airbag brake plate; 310. male card head connecting slot; 4. shoulder strap rotating mechanism; 401. rotating plate; 402. fixed circular plate; 403. shoulder strap through hole; 404. rotating plate Rotating board slot; 405, rotating board clamp head; 5, electric electromagnetic brake winding roller; 6, female clamp head; 602, slot; 603, upper shoulder strap connector; 604, lock; 7, winding motor; 701, brake gear; 8, winding motor protection box; 801, electric winding roller protection box; 802, protection plate 1; 803, protection plate 2; 9, electric telescopic rod; 901, U-shaped brake head; 902, pressure sensor; 10, battery; 11, fingerprint recognition module; 12, central processing unit; 13, charging port; 14, buzzer. DETAILED DESCRIPTION
[0022] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0023] like Figures 1-10 The backpack can be worn on one shoulder or both shoulders, and can be worn on two shoulders, with the upper shoulder strap 201 and the lower shoulder strap 202 being connected to each other and being able to be adjusted. The shoulder straps 201 and 202 are connected to the backpack body 1 and the shoulder strap rotation mechanism 4 is provided between the upper shoulder strap 201 and the lower adjustment strap 202. The shoulder strap rotation mechanism 4 includes a rotating plate 401 and a fixed circular plate 402 that are rotatably connected. The fixed circular plate 402 is fixedly arranged on the inner side of the backpack body 1. The rotating plate 401 is provided with a shoulder strap through hole 403. The upper shoulder strap 201 passes through the shoulder strap through hole 403 and is fixedly connected to the winding motor 7. The lower adjustment strap 202 passes through the shoulder strap through hole 403 and is fixedly connected to the electric electromagnetic brake winding roller 5. When adjusting the double shoulder straps, the upper upper shoulder strap 201 and the lower adjustment strap 202 are pulled out, and the vertical upper shoulder strap 201 and the lower adjustment strap 202 are snap-connected to realize the double shoulder strap operation. The two shoulder straps are independently connected to the backpack body to evenly distribute the weight, which is suitable for long-term load-bearing or long-distance travel. The double shoulder straps improve the comfort of the user. Single shoulder strap adjustment: pull out the upper shoulder strap 201 and rotate it through the rotating plate 401, then pull out the lower adjustment strap 202 diagonally below, rotate it through the rotating plate 401, and snap the upper shoulder strap 201 and the lower adjustment strap 202 together to achieve single shoulder strap adjustment. In single shoulder strap mode, the other shoulder strap can be rolled up to avoid dragging. At the same time, the remaining upper shoulder strap 201 and lower adjustment strap 202 are hidden, leaving only one shoulder strap for crossbody or single shoulder carrying, which is suitable for short trips, quick access or fashion matching. Users can choose to adjust the backpack to either a single or double shoulder strap, which not only improves user comfort and convenience, but also enhances the practicality and versatility of the backpack. Whether it is daily commuting, short trips or outdoor adventures, users can flexibly switch the carrying method according to their needs, truly realizing "one bag for multiple uses". This design not only meets the modern people's pursuit of efficient and convenient life, but also reflects the humanization and intelligent trend of backpack design, taking into account practicality, comfort and fashion. When braking the upper shoulder belt 201, the upper shoulder belt 201 also needs to be braked while being wound up. Specifically, the braking of the upper shoulder belt 201 is as follows: An electric telescopic rod 9 is fixedly provided on the winding motor protection box 8, and a U-shaped brake head 901 is provided at the output end of the electric telescopic rod 9. Braking gears 701 are provided at both ends of the winding motor 7. The U-shaped brake head 901 corresponds to the teeth on the winding motor 7. After the winding motor 7 rewinds the upper shoulder strap 201, it is necessary to brake the upper shoulder strap 201 to prevent it from slipping out. Braking gears 701 are fixed on both sides of the winding motor 7. When braking, the electric telescopic rod 9 is started to make the U-shaped brake head 901 at the output end of the electric telescopic rod 9 stuck on the brake gear 701, thereby preventing the winding motor 7 from rotating, and then braking the winding motor 7, thereby preventing the upper shoulder strap 201 from being pulled out infinitely, facilitating adjustment, and improving the convenience of use; In addition, a pressure sensor 902 is fixedly provided on the U-shaped brake head 901, and the electric telescopic rod 9 and the pressure sensor 902 are electrically connected to the fingerprint recognition module 11. The pressure sensor 902 is fixedly provided on the U-shaped brake head 901. When the upper shoulder strap 201 is pulled without unlocking, the brake gear 701 will be driven to rotate, and the brake gear 701 will squeeze the pressure sensor 902. The fingerprint recognition module 11 is electrically connected to the central processing unit 12 through a wire, and the electric electromagnetic brake winding roller 5 and the winding motor 7 are both electrically connected to the central processing unit 12. The central processing unit 12 is electrically connected to a buzzer 14. The pressure sensor 902 transmits pressure information to the central processing unit 12, and the central processing unit 12 sends the information to the buzzer 14 after processing the information. The buzzer 14 starts to emit a buzzer sound to remind the user, which plays a certain anti-theft role and ensures the safety of the user's property. Of course, after the user is identified by the fingerprint recognition module 11, it is in the unlocked state and the buzzer 14 is not started. The lower adjusting belt 202 is braked, the winding motor 7 is connected to the winding motor protection box 8, the electric electromagnetic brake winding roller 5 is connected to the electric winding roller protection box 801, and the electric electromagnetic brake winding roller 5 is fixedly set on the electric winding roller protection box 801. The electric electromagnetic brake winding roller 5 can both reel the lower adjusting belt 202 and brake the lower adjusting belt 202 to prevent the lower adjusting belt 202 from being pulled out infinitely, thereby improving the convenience of adjustment.
[0024] Furthermore, in order to facilitate switching between single and double shoulders, Figure 2 、 Figure 3 as well as Figure 5 As shown, the fixed circular plate 402 is fixedly arranged on the backpack body 1, and the rotating plate 401 brake is arranged on the rotating plate 401, so that the directions of the upper shoulder strap 201 and the lower adjustment belt 202 can be adjusted. A rotating plate clamping groove 404 is opened on the rotating plate 401, and a rotating plate clamping head 405 slidingly connected to the rotating plate clamping groove 404 is fixedly arranged on the fixed circular plate 402. The rotating plate clamping groove 404 on the rotating plate 401 is rotatably arranged on the rotating plate clamping head 405, which is convenient for adjusting the rotating plate 401 and improving the convenience of adjustment. The winding motor protection box 8 is fixedly arranged on the rotating plate 4 01, a protective plate 1 802 is fixedly provided on the winding motor protective box 8, the stator of the winding motor 7 is fixedly provided on the protective plate 1 802, the electric winding roller protective box 801 is connected with a protective plate 2 803, the electric electromagnetic brake winding roller 5 is fixedly provided on the protective plate 2 803, the winding motor 7 is fixedly provided on the protective plate 1 802, and the electric electromagnetic brake winding roller 5 is fixedly provided on the protective plate 2 803, which improves the stability of the winding motor 7 and the electric electromagnetic brake winding roller 5, and can rotate simultaneously with the rotating plate 401, thereby improving the convenience of adjusting the rotating plate 401.
[0025] Furthermore, the connection point between the shoulder strap and the backpack body is designed to be a detachable structure, so that the user can easily adjust or remove the shoulder strap, such as Figure 4 、 Figure 6 as well as Figure 7 As shown, one end of the upper shoulder strap 201 close to the lower adjustment strap 202 is connected to the female clip 6 through the upper shoulder strap connector 603, and the end of the lower adjustment strap 202 close to the upper shoulder strap 201 is connected to the male clip 3. The female clip 6 is fixed to the upper shoulder strap 201 through the upper shoulder strap connector 603. The other end of the female clip 6 is provided with a slot 602, and one end of the male clip 3 is provided with a plug 303 that is engaged with the slot 602. When connecting the upper shoulder strap 201 and the lower adjustment strap 202, it is sufficient to directly connect the plug 303 on the male clip 3 to the slot 602 of the female clip 6. The structure is simple and the convenience of use is improved. In order to solve the problem that the traditional clamp head is easily damaged, a brake airbag groove 301 is opened on the male clamp head 3, and a brake airbag 302 is fixedly set inside the brake airbag groove 301. The upper and lower sides of the plug 303 are both provided with a lock plate groove 304, and a lock plate airbag 305 is fixedly set inside the lock plate groove 304. The lock plate airbag 305 is connected to the brake airbag 302 through the flow channel 308. When the brake airbag 302 is in the squeezed state, the lock plate airbag 305 is in the expanded state. The brake airbag 302 and the lock plate airbag 305 are interconnected. When the brake airbag 302 is squeezed, the lock plate airbag 305 is in an expanded state. The interior of the brake airbag groove 301 is connected to an airbag brake plate 309 via a thread. A handle is fixedly provided on the outer side of the airbag brake plate 309. The airbag brake plate 309 is threadedly connected to the brake airbag groove 301. When the airbag brake plate 309 is rotated downward, the brake airbag 302 can be squeezed, causing the lock plate airbag 305 to expand. The outer side of the locking plate airbag 305 is fixedly provided with a locking plate 307, and the locking plate 307 is slidably arranged in the locking plate groove 304. The female clamp head 6 is provided with a locking hole 604 corresponding to the locking plate 307. After the locking plate airbag 305 is inflated, it expands and drives the locking plate 307 to slide upward, and the locking plate 307 slides out of the locking plate groove 304 and enters the interior of the locking hole 604 to achieve the purpose of locking the male clamp head 3, thereby connecting the male clamp head 3 and the female clamp head 6 together. The locking plate airbag 305 and the locking hole 604 are connected. A spring 306 is fixedly provided between the plate grooves 304. The spring 306 is used to pull the locking plate airbag 305. When unlocking, the airbag brake plate 309 is rotated outward. Under the action of the spring 306, the locking plate airbag 305 is compressed, and the locking plate 307 is restored to the inside of the locking plate groove 304, making it easy to remove the plug 303 on the male clamp head 3 from the slot 602 of the female clamp head 6, thereby unlocking the upper shoulder strap 201 and the lower adjustment strap 202. At the same time, a male card head connecting groove 310 is opened at the end of the male card head 3 away from the female card head 6, and the lower adjustment strap 202 is fixedly set inside the male card head connecting groove 310. The lower adjustment strap 202 is fixedly set on the male card head 3 through the male card head connecting groove 310, thereby improving the structural strength of the lower adjustment strap 202 and the stability of the entire shoulder strap.
[0026] Further, if Figure 1 、 Figure 8 as well as Figure 9 As shown, an upper winding box 101 and a lower winding box 102 are fixedly provided inside the backpack body 1, the winding motor protection box 8 is rotatably provided inside the upper winding box 101, and the electric winding roller protection box 801 is rotatably provided inside the lower winding box 102, the winding motor protection box 8 is braked inside the upper winding box 101, and the electric winding roller protection box 801 is braked inside the lower winding box 102, and the upper winding box 101 and the lower winding box 102 are both provided inside the backpack body 1, which can protect the winding motor protection box 8 and the electric winding roller protection box 801 and improve their service life; A battery 10 is fixedly installed inside the backpack body 1. The battery 10 is electrically connected to the central processing unit 12, and the central processing unit 12 is powered by the battery 10. The battery 10 is electrically connected to a charging interface 13. In addition, the battery 10 is charged through the charging interface 13 to improve the convenience of use. The charging interface 13 and the buzzer 14 are both fixedly set on the outer side of the backpack body 1. The outer side of the backpack body 1 facilitates timely charging of the battery 10, and the external buzzer 14 is conducive to reminder use.
[0027] like Figures 1-10 As shown, the principle of the convertible single-shoulder and double-shoulder backpack with anti-theft knot function provided by this embodiment is as follows: Single shoulder strap adjustment: pull out the upper shoulder strap 201 and rotate it through the rotating plate 401, then pull out the lower adjustment strap 202 diagonally below, rotate it through the rotating plate 401, and snap the upper shoulder strap 201 and the lower adjustment strap 202 together to achieve single shoulder strap adjustment. In single shoulder strap mode, the other shoulder strap can be rolled up to avoid dragging. At the same time, the remaining upper shoulder strap 201 and lower adjustment strap 202 are hidden, leaving only one shoulder strap for crossbody or single shoulder carrying, which is suitable for short trips, quick access or fashion matching. When braking the upper shoulder belt 201, the upper shoulder belt 201 also needs to be braked while being wound up. Specifically, the braking of the upper shoulder belt 201 is as follows: After the winding motor 7 winds up the upper shoulder strap 201, in order to prevent the upper shoulder strap 201 from slipping out, the upper shoulder strap 201 needs to be braked. Braking gears 701 are fixedly provided on both sides of the winding motor 7. When braking, the electric telescopic rod 9 is activated, so that the U-shaped brake head 901 at the output end of the electric telescopic rod 9 is stuck on the brake gear 701, thereby preventing the winding motor 7 from rotating, and then braking the winding motor 7. This can prevent the upper shoulder strap 201 from being pulled out infinitely, facilitate adjustment, and improve convenience of use; A pressure sensor 902 is fixedly provided on the U-shaped brake head 901. When the upper shoulder strap 201 is pulled without unlocking, the brake gear 701 will be driven to rotate, and the brake gear 701 will squeeze the pressure sensor 902. After processing the information, the central processing unit 12 sends the information to the buzzer 14. The buzzer 14 starts to emit a buzzing sound to remind the user, play a certain anti-theft role, and ensure the safety of the user's property. Of course, after the user is identified by the fingerprint recognition module 11, it is in the unlocked state and the buzzer 14 is not started. The lower adjusting belt 202 is braked, and the electric electromagnetic brake winding roller 5 is fixedly set on the electric winding roller protection box 801. The electric electromagnetic brake winding roller 5 can both reel in the lower adjusting belt 202 and brake the lower adjusting belt 202 to prevent the lower adjusting belt 202 from being pulled out infinitely, thereby improving the convenience of adjustment.
[0028] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.
[0029] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.
[0030] The foregoing description shows and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be within the scope of the appended claims.
Claims
1. A backpack with a convertible single-shoulder and double-shoulder function and an anti-theft knot function, comprising a backpack body (1), characterized in that: A shoulder strap body (2) is symmetrically arranged on one side of the backpack body (1), and the shoulder strap body (2) includes an upper shoulder strap (201) and a lower adjustment strap (202) that are snap-connected, and an end of the upper shoulder strap (201) away from the lower adjustment strap (202) is connected to a winding motor (7), and the winding motor (7) is used to wind up the upper shoulder strap (201), and an end of the lower adjustment strap (202) away from the upper shoulder strap (201) is connected to an electric electromagnetic brake winding roller (5), and the electric electromagnetic brake winding roller (5) is used to wind up the lower adjustment strap (202); A shoulder strap rotating mechanism (4) is provided between the upper shoulder strap (201) and the lower adjustment strap (202) and the backpack body (1), the shoulder strap rotating mechanism (4) comprising a rotating plate (401) and a fixed circular plate (402) which are rotatably connected, the fixed circular plate (402) being fixedly provided on the inner side surface of the backpack body (1), a shoulder strap through hole (403) being provided on the rotating plate (401), the upper shoulder strap (201) passing through the shoulder strap through hole (403) and being fixedly connected to the winding motor (7), and the lower adjustment strap (202) passing through the shoulder strap through hole (403) and being fixedly connected to the electric electromagnetic brake winding roller (5); The winding motor (7) is connected to a winding motor protection box (8), the electric electromagnetic brake winding roller (5) is connected to an electric winding roller protection box (801), an electric telescopic rod (9) is fixedly provided on the winding motor protection box (8), an output end of the electric telescopic rod (9) is provided with a U-shaped brake head (901), both ends of the winding motor (7) are provided with brake gears (701), the U-shaped brake head (901) corresponds to the teeth on the winding motor (7), a pressure sensor (902) is fixedly provided on the U-shaped brake head (901), the electric telescopic rod (9) and the pressure sensor (902) are electrically connected to a fingerprint recognition module (11), the fingerprint recognition module (11) is electrically connected to a central processing unit (12) through a wire, the electric electromagnetic brake winding roller (5) and the winding motor (7) are both electrically connected to the central processing unit (12), and the central processing unit (12) is electrically connected to a buzzer (14).
2. The backpack with an anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 1, characterized in that: A rotating plate clamping slot (404) is provided on the rotating plate (401), a rotating plate clamping head (405) is fixedly provided on the fixed circular plate (402) and is slidably connected to the rotating plate clamping slot (404), the winding motor protective box (8) is fixedly provided on the rotating plate (401), a protective plate 1 (802) is fixedly provided on the winding motor protective box (8), and the stator of the winding motor (7) is fixedly provided on the protective plate 1 (802).
3. The backpack with an anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 1, characterized in that: The electric winding roller protection box (801) is connected to a second protection plate (803), and the electric electromagnetic braking winding roller (5) is fixedly arranged on the second protection plate (803).
4. The backpack with an anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 1, characterized in that: One end of the upper shoulder strap (201) close to the lower adjustment strap (202) is connected to a female clamp (6) via a shoulder strap connector (603); one end of the lower adjustment strap (202) close to the upper shoulder strap (201) is connected to a male clamp (3); the female clamp (6) is fixedly arranged on the upper shoulder strap (201) via the upper shoulder strap connector (603); the other end of the female clamp (6) is provided with a slot (602); and one end of the male clamp (3) is provided with a plug (303) that is engaged with the slot (602).
5. The backpack with anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 4, characterized in that: The male clamp head (3) is provided with a brake airbag groove (301), and a brake airbag (302) is fixedly arranged inside the brake airbag groove (301). The upper and lower side surfaces of the plug (303) are provided with lock plate grooves (304), and a lock plate airbag (305) is fixedly arranged inside the lock plate groove (304). The lock plate airbag (305) is connected to the brake airbag (302) through a flow channel (308), wherein when the brake airbag (302) is in a squeezed state, the lock plate airbag (305) is in an expanded state.
6. The backpack with an anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 5, characterized in that: The interior of the brake airbag groove (301) is connected to an airbag brake plate (309) via a thread, and a handle is fixedly provided on the outer side of the airbag brake plate (309).
7. The backpack with an anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 6, characterized in that: A locking plate (307) is fixedly provided on the outer side surface of the locking plate airbag (305), and the locking plate (307) is slidably provided inside the locking plate groove (304). A locking opening (604) corresponding to the locking plate (307) is provided on the female clamp (6), and a spring (306) is fixedly provided between the locking plate airbag (305) and the locking plate groove (304), and the spring (306) is used to pull the locking plate airbag (305).
8. The backpack with an anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 5, characterized in that: A male clamping head connecting groove (310) is provided at one end of the male clamping head (3) away from the female clamping head (6), and the lower adjustment belt (202) is fixedly arranged inside the male clamping head connecting groove (310).
9. The backpack with an anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 1, characterized in that: An upper winding box (101) and a lower winding box (102) are fixedly arranged inside the backpack body (1); the winding motor protection box (8) is rotatably arranged inside the upper winding box (101); and the electric winding roller protection box (801) is rotatably arranged inside the lower winding box (102).
10. The backpack with anti-theft knot function that can be converted from one shoulder to two shoulders according to claim 1, characterized in that: A storage battery (10) is fixedly arranged inside the backpack body (1), the storage battery (10) is electrically connected to the central processing unit (12), the storage battery (10) is electrically connected to a charging interface (13), and the charging interface (13) and the buzzer (14) are both fixedly arranged on the outer side of the backpack body (1).