A multi-functional backpack

Abstract

The present invention relates to the technical field of backpacks, and particularly relates to a multi-functional backpack, including: a backpack body; a frame provided on the back side of the backpack body; a back auxiliary structure located on the side of the frame away from the backpack body, with the upper and lower ends of the back auxiliary structure detachably connected to the frame respectively; shoulder straps, there are two shoulder straps straddling the back side of the backpack body, one end of the shoulder strap is connected between the back auxiliary structure and the backpack body, and the other end of the shoulder strap is connected to the lower end of the back auxiliary structure; a waist belt detachably connected to the lower end of the back auxiliary structure. Each accessory equipped with the backpack of the present invention can reduce the load-bearing feeling when a person carries the backpack. The frame can effectively maintain the shape of the back of the backpack. Cooperating with the back auxiliary structure and the waist belt, part of the pressure can be transferred from the shoulders of the human body to the back and waist. Moreover, it is convenient to disassemble and install between each accessory. Using the frame, the back auxiliary structure, the shoulder straps, etc. alone can also be used as a device for back correction.

Description

Technical Field

[0001] The present invention relates to the technical field of backpacks, and particularly to a multifunctional backpack. Background Art

[0002] A backpack, also known as a rucksack, is a luggage bag with one or two shoulder straps that can be hung on a human's back. Although backpacks have been improved in terms of structure and materials, their main structure system remains the shoulder straps and the luggage bag. Since it is difficult for humans to carry heavy objects with both hands for a long time, backpacks are often the preferred tool for carrying or transporting heavy objects. Depending on different applications, comfort and portability are emphasized when using a backpack. When carrying a load, the designs of existing backpacks used in different scenarios vary. For example, more breathable materials may be used, a support frame may be added inside, the weight may be transferred to the hips, or the shoulder straps may be filled to reduce the pressure on the shoulders and a waist belt may be attached.

[0003] However, most of the existing backpacks and their accessories are fixed to the backpack according to the standard human body shape, which is not convenient for disassembly and replacement. At the same time, they cannot be adapted to different people, resulting in that the support bars on the back not only affect the comfort when people carry a backpack, but also increase the weight of the backpack without being able to disperse the pressure. The main reason is usually that the accessories only consider the state of using the backpack when people straighten their backs and waists, while ignoring the displacement and deformation caused by often bending down when climbing mountains, etc., resulting in the deformation of the backpack, the items leaning to one side and causing uneven stress and other adverse effects. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide a multifunctional backpack. The accessories equipped with the backpack of the present invention can reduce the load-bearing feeling when a human carries the backpack. The frame can effectively maintain the shape of the back of the backpack. In cooperation with the back auxiliary structure and the waist belt, part of the pressure can be transferred from the shoulders of the human body to the back and the waist. Moreover, it is convenient to disassemble and install between the accessories, and the frame, the back auxiliary structure, the shoulder straps, etc. can also be used alone as a device for back correction.

[0005] A multifunctional backpack according to the present invention includes:

[0006] A backpack body;

[0007] A frame, which is arranged on the back side of the backpack body;

[0008] A back auxiliary structure, which is located on the side of the frame away from the backpack body, and the upper and lower ends of the back auxiliary structure are detachably connected to the frame respectively;

[0009] Shoulder straps, two of which are arranged across the back side of the backpack body, one end of each shoulder strap is connected between the back auxiliary structure and the backpack body, and the other end of the shoulder strap is connected to the lower end of the back auxiliary structure;

[0010] A waist belt, which is detachably connected to the lower end of the back auxiliary structure.

[0011] In one embodiment, the frame includes corner pieces and connecting rods. The corner pieces are respectively fixed at the four corners of the back of the backpack body, and the connecting rods are detachably connected to the corner pieces through a clamping structure.

[0012] In one embodiment, the clamping structure includes a clamping strip extending from the corner piece. The clamping strip is provided with protrusions. A through groove is opened on one side of the connecting rod close to the back auxiliary structure. The width of the through groove is the same as the width of the clamping strip, and through holes adapted to the protrusions are provided on the through groove.

[0013] In one embodiment, the back auxiliary structure includes two symmetrically arranged support bars. The upper ends of the two support bars are fixedly connected by an insertion rod. A mounting member is rotatably connected between the lower ends of the two support bars. A mounting hole for inserting the waist belt is opened in the middle of the mounting member.

[0014] In one embodiment, each support bar includes at least three sequentially hinged support blocks. Among them, one of the support blocks at the uppermost end is connected to the corner piece through a magnetic connection mechanism, one of the support blocks at the lowermost end is connected to the corner piece through a buckle mechanism, and a fan is embedded on one side of one of the support blocks in the middle away from the frame.

[0015] In one embodiment, the magnetic connection mechanism includes a first connecting piece and a second connecting piece that are magnetically connected to each other; one end of the first connecting piece is threadedly connected to the corner piece, and the other end of the first connecting piece extends radially in a frustum shape; the second connecting piece is slidably connected in the support block through a guide rail, and a notch for disengaging from the first connecting piece is further provided on the second connecting piece along its sliding direction.

[0016] In one embodiment, the buckle mechanism includes a third connecting piece and a card slot opened on the support block; one end of the third connecting piece is threadedly connected to the corner piece, and the other end of the third connecting piece extends radially in a frustum shape; the upper half of the card slot is wider than the third connecting piece, and a convex ring for clamping the third connecting piece is provided on the inner side of the lower half of the card slot.

[0017] In one embodiment, each of the support blocks includes a bottom plate and a mounting frame adapted to an edge of the bottom plate, and a honeycomb grid is provided in the middle of the bottom plate.

[0018] In one embodiment, the back structure is provided with a groove at the upper end corresponding to the shoulder strap, and a plurality of cross bars for inserting the shoulder strap are arranged in the groove.

[0019] In one embodiment, connecting plates are rotatably connected to both sides of the lower end of the back substructure, and the connecting plates are provided with strap holes for connecting with the shoulder strap.

[0020] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0021] 1. The backpack of the present invention is equipped with various accessories that can reduce the sense of weight when the person is wearing the backpack. The frame can effectively maintain the shape of the back of the backpack. In conjunction with the back structure and the waist belt, it can transfer part of the pressure from the shoulders to the back and waist of the person. In addition, the various accessories are easy to disassemble and install. The frame, back structure and shoulder belt can be used alone as a back correction device.

[0022] 2. All parts and components of the device can be replaced and assembled through simple disassembly and assembly to reduce maintenance costs.

[0023] 3. The frame can provide support for the back of the backpack to ensure that it is relatively flat, which is convenient for arranging items in the backpack and is not easy to change the position of items in the backpack due to bending over, thereby avoiding excessive changes in force;

[0024] 4. The backpack substructure is a frame structure consisting of two support bars, an insert rod, and a mounting piece. The upper ends of the two support bars are fixedly connected by an insert rod, which adapts to the dorsal plane of the human shoulder. The mounting piece at the lower end is rotatably connected to ensure that the waist belt inserted on the mounting piece can remain horizontal and span the waist of the human body, further ensuring that the overall backpack substructure fits the human back, reducing the impact of the backpack body shaking on the back.

[0025] 5. A single support block is also made up of a base plate and a mounting frame, which makes it easy to press or sew the fabric from the edge, and fill the space between the fabric and the base plate with a sponge layer as a buffer, thereby improving the comfort of the back contacting the back structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a multifunctional backpack of the present invention;

[0027] Figure 2 It is a schematic diagram of the connection between the frame and the back structure of the present invention;

[0028] Figure 3 It is a connection schematic diagram of the frame and the magnetic connection mechanism of the present invention;

[0029] Figure 4 It is an exploded view of the structure of a part of the frame and the magnetic connection mechanism of the present invention;

[0030] Figure 5 It is a front view of the back auxiliary structure of the present invention;

[0031] Figure 6 It is a rear view of the back auxiliary structure of the present invention;

[0032] Figure 7 It is an internal structure diagram of a support block located at the upper end of the present invention.

[0033] Explanation of reference numerals: 1-backpack body, 2-frame, 21-corner piece, 22-connecting rod, 23-clamping structure, 231-clamping bar, 232-protrusion, 233-through groove, 234-through hole, 3-back auxiliary structure, 31-support bar, 311-support block, 312-fan, 32-insert rod, 33-mounting part, 34-groove, 35-connecting piece, 4-back strap, 5-waist belt, 6-magnetic connection mechanism, 61-first connecting piece, 62-second connecting piece, 63-guide rail, 7-buckle mechanism, 71-third connecting piece, 72-card slot. Detailed implementation manners

[0034] The accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent; for better illustration of this embodiment, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation" and "connection" 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 said to be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] As Figures 1-7 shown, a multifunctional backpack of the present invention includes:

[0037] Backpack body 1;

[0038] Frame 2, and the frame 2 is arranged on the back side of the backpack body 1;

[0039] The back auxiliary structure 3 is located on the side of the frame 2 away from the backpack body 1, and the upper and lower ends of the back auxiliary structure 3 are detachably connected to the frame 2 respectively;

[0040] The shoulder straps 4 are two and straddle the back side of the backpack body 1. One end of the shoulder strap 4 is connected between the back auxiliary structure 3 and the backpack body 1, and the other end of the shoulder strap 4 is connected to the lower end of the back auxiliary structure 3;

[0041] The waist belt 5 is detachably connected to the lower end of the back auxiliary structure 3.

[0042] The accessories equipped with the backpack of the present invention can reduce the load-bearing feeling of the human body when carrying the backpack. The frame 2 can effectively maintain the shape of the back of the backpack body 1. In cooperation with the back auxiliary structure 3 and the waist belt 5, part of the pressure can be transferred from the shoulders of the human body to the back and waist. Moreover, it is convenient to disassemble and install between the accessories. Using the frame 2, the back auxiliary structure 3 and the shoulder straps 4 alone can also be used as a device for correcting the back. During installation, the frame 2 can be fixed on a luggage bag such as the backpack body 1 first, connected to the frame 2 through the upper end of the back auxiliary structure 3, the lower end of the back auxiliary structure 3 is disassembled and closely attached along the human back. A sponge layer or the like can be filled on the side of the back auxiliary structure 3 close to the human back to increase the comfort, and the lower end of the shoulder strap 4 is connected to the lower end of the back auxiliary structure 3, and the waist belt 5 straddles the waist. Then when people carry the luggage bag, they are not only supported by the force on the shoulders through the shoulder straps 4, but also because the back auxiliary structure 3 is closely attached to the frame 2, so that when people bend down, there is also a large contact surface with the back auxiliary structure 3, and the pressure of the backpack body 1 is dispersed to the back. And due to the fixation of the waist belt 5, it further prevents the back auxiliary structure 3 from separating from the back. In addition, when there is no item in the backpack body 1, the lower end of the back auxiliary structure 3 is also connected to the frame 2, then the back auxiliary structure 3 and the frame 2 are kept parallel to form a plane for supporting the human back. In cooperation with the waist belt 5 and the shoulder straps 4 to adjust and tighten, this structure can be directly used as a device for correcting the human spine, allowing the user to straighten the back and correct the sitting or standing posture, etc.

[0043] In one embodiment, the frame 2 includes corner members 21 and connecting rods 22. The corner members 21 are respectively fixed at the four corners of the back surface of the backpack body 1, and the connecting rods 22 are detachably connected to the corner members 21 through a clamping structure 23. For the connection between the frame 2 and the backpack body 1, according to different backpack sizes, four corner members 21 can be first fixedly installed at corresponding positions, and then a connecting rod 22 with an appropriate length can be selected and installed between two adjacent corner members 21, which makes it convenient for replacement. Especially when the frame 2 is used as the support force on the back of the backpack, the connecting rod 22 is most likely to be worn. The detachable frame 2 can only replace the connecting rod 22, reducing the maintenance cost. Among them, the clamping structure 23 includes a clamping bar 231 extending from the corner member 21. The clamping bar 231 is provided with a protrusion 232. A through groove 233 is formed on one side of the connecting rod 22 close to the back auxiliary structure 3. The width of the through groove 233 is the same as that of the clamping bar 231, and a through hole 234 adapted to the protrusion 232 is provided on the through groove 233. The corner member 21 and the connecting rod 22 are mainly detachably connected through the clamping structure 23. The widths of both ends of the through groove 233 on the connecting rod 22 are adapted to the clamping bar 231, and further fixed by inserting the protrusion 232 into the through hole 234, further playing a role in limiting the connecting rod 22. The frame 2 thus formed can provide a support force for the back surface of the backpack body 1 to ensure its relative flatness, facilitating the arrangement of items in the backpack body 1 and not easily changing the positions of the items in the backpack due to bending or the like, thereby avoiding too large a change in the force.

[0044] In one embodiment, the back auxiliary structure 3 includes two symmetrically arranged support bars 31. The upper ends of the two support bars 31 are fixedly connected by an insertion rod 32. A mounting member 33 is rotatably connected between the lower ends of the two support bars 31. An installation hole for inserting the waist belt 5 is formed in the middle of the mounting member 33. The back auxiliary structure 3 is specifically a frame structure composed of two support bars 31, an insertion rod 32, and a mounting member 33. The upper ends between the two support bars 31 are fixedly connected by the insertion rod 32, which is adapted to the dorsal plane of the human shoulder. The lower mounting member 33 is rotatably connected to ensure that the waist belt 5 inserted on the mounting member 33 can be kept horizontal and straddle the human waist, further ensuring that the overall back auxiliary structure 3 fits the human back, reducing the shaking of the backpack body 1 and the impact on the back. Further, each support bar 31 includes at least three sequentially hinged support blocks 311. Among them, the uppermost support block 311 is connected to the corner member 21 through a magnetic connection mechanism 6, the lowermost support block 311 is connected to the corner member 21 through a buckle mechanism 7, and a fan 312 is embedded on one side of one of the support blocks 311 in the middle away from the frame 2 to improve the heat dissipation effect at the position where the middle of the human back is most likely to sweat. The support bar 31 can further adapt to the back muscles of different people through a plurality of mutually hinged support blocks 311, so that the sponge layer on the support block 311 can better protect the human back muscles, increase the contact area, and reduce the sense of load. Moreover, the positions of the support bar 31 corresponding to the four corners of the frame 2 are detachably connected by a magnetic connection mechanism 6 and a buckle mechanism 7 respectively, and the back auxiliary structure 3 can be completely separated from the frame 2. When it is necessary to use the back auxiliary structure 3 for support and pressure dispersion, the magnetic connection mechanism 6 at the upper end can be connected to hang the backpack body 1, and the lower end of the support bar 31 is separated from the frame 2 and fits with the back; when it is necessary to combine the back auxiliary structure 3, the frame 2, etc. as a device for correcting the back, both the upper and lower ends of the support bar 31 are connected to the frame 2 to form a plane.

[0045] Among them, the magnetic connection mechanism 6 includes a first connecting member 61 and a second connecting member 62 that are magnetically connected to each other; one end of the first connecting member 61 is threadedly connected to the corner member 21, and the other end of the first connecting member 61 extends radially to form a frustum shape; the second connecting member 62 is slidably connected in the support block 311 through a guide rail 63, and a notch for disengaging from the first connecting member 61 is further provided on the second connecting member 62 along its sliding direction. When the upper end of the support bar 31 is connected to the frame 2, the second connecting member 62 is correspondingly located at the through hole on the support block 311, so that the first connecting member 61 can pass through the through hole, and the installation part of the second connecting member 62 is buckled on the frustum-shaped end of the first connecting member 61 by using a strong magnetic attraction to form a relatively stable connection; when disassembling, the second connecting member 62 is slid along the guide rail 63 by the adjacent lever, and the first connecting member 61 will disengage from the second connecting member 62 from the notch, and the second connecting member 62 will also move relatively away from the first connecting member 61, reducing the magnetic attraction effect, so as to facilitate the separation of the upper end of the support bar 31 from the frame 2.

[0046] In addition, the buckle mechanism 7 includes a third connecting member 71 and a card slot 72 opened on the support block 311; one end of the third connecting member 71 is threadedly connected to the corner member 21, and the other end of the third connecting member 71 extends radially to form a frustum shape; the upper half of the card slot 72 has a width greater than that of the third connecting member 71, and a convex ring for clamping with the third connecting member 71 is provided on the inner side of the lower half of the card slot 72. The shape of the third connecting member 71 can be the same as that of the above-mentioned first connecting member 61, which is convenient for mutual replacement and use. The buckle mechanism 7 is used as a secondary connecting structure and mostly needs to be used in combination with the connection of the above-mentioned magnetic connection mechanism 6. Due to the fixation of the magnetic connection mechanism 6 and the distance from the buckle mechanism 7 to the magnetic connection mechanism 6 being adapted to the length of the frame 2 in the up and down direction, when the third connecting member 71 is inserted from the upper half of the card slot 72 and snapped into the convex ring in the lower half, a relatively fixed connection can be achieved to prevent the lower end of the support bar 31 from detaching from the frame 2.

[0047] In one embodiment, each support block 311 includes a bottom plate and a mounting frame adapted to the edge of the bottom plate, and a honeycomb-shaped grid is provided in the middle of the bottom plate. A single support block 311 is also formed by the cooperation of the bottom plate and the mounting frame, which is convenient for pressing or sewing the fabric from the edge, and filling a sponge layer between the fabric and the bottom plate as a buffer to improve the comfort of the human back contacting the back auxiliary structure 3. At the same time, the honeycomb-shaped grid on the bottom plate provides sufficient support to enable objects such as the guide rail 63 and the fan 312 to be placed in the middle, and has a good heat dissipation effect. Other functional accessories such as a massage head can also be replaced at the fan 312.

[0048] In addition, a groove 34 is formed in the back auxiliary structure 3 corresponding to the upper end of the strap 4, and a plurality of cross bars for inserting the strap 4 are arranged in the groove 34. Connecting pieces 35 are respectively rotatably connected to both sides of the lower end of the back auxiliary structure 3, and strap holes for connecting with the strap 4 are formed in the connecting pieces 35. The strap 4 can be directly tied to the groove 34 at the lower end of the back auxiliary structure 3 and the connecting pieces 35 at both ends, that is, the strap 4 located on the backpack body 1 in the existing design is arranged on the back auxiliary structure 3, so that it is easier to adjust the back auxiliary structure 3 to be close to the human back and the length of the strap 4, which is suitable for different people to use. The backpack body 1 can be replaceably installed on the back structure 3 as a hanging piece.

[0049] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the protection scope of the present application.

[0050] In the drawings, the description of the positional relationship is only for illustrative purposes and should not be construed as a limitation of the patent; obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not limitations on the embodiments of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A multifunctional backpack, characterized in that, Comprising: A backpack body (1); A frame (2), which is arranged on the back side of the backpack body (1); A back auxiliary structure (3), which is located on the side of the frame (2) away from the backpack body (1), and the upper and lower ends of the back auxiliary structure (3) are respectively detachably connected to the frame (2); Shoulder straps (4), there are two shoulder straps (4) which straddle the back side of the backpack body (1), one end of the shoulder strap (4) is connected between the back auxiliary structure (3) and the backpack body (1), and the other end of the shoulder strap (4) is connected to the lower end of the back auxiliary structure (3); A waist belt (5), which is detachably connected to the lower end of the back auxiliary structure (3); Wherein, the back auxiliary structure (3) includes two symmetrically arranged support bars (31), the upper ends of the two support bars (31) are fixedly connected by an insertion rod (32), and a mounting member (33) is rotatably connected between the lower ends of the two support bars (31), and a mounting hole for inserting the waist belt (5) is provided in the middle of the mounting member (33); Each support bar (31) includes at least three sequentially hinged support blocks (311), wherein, one of the support blocks (311) located at the uppermost end is connected to the corner member (21) through a magnetic connection mechanism (6), and one of the support blocks (311) located at the lowermost end is connected to the corner member (21) through a buckle mechanism (7).

2. The multifunctional backpack according to claim 1, wherein, The frame (2) includes a corner member (21) and a connecting rod (22), the corner member (21) is respectively fixed at the four corners of the back of the backpack body (1), and the connecting rod (22) is detachably connected to the corner member (21) through a clamping structure (23).

3. The multifunctional backpack according to claim 2, characterized in that, The clamping structure (23) includes a clamping bar (231) extending from the corner member (21), a protrusion (232) is provided on the clamping bar (231), a through groove (233) is opened on one side of the connecting rod (22) close to the back auxiliary structure (3), the width of the through groove (233) is the same as the width of the clamping bar (231), and a through hole (234) adapted to the protrusion (232) is provided on the through groove (233).

4. A multifunctional backpack according to any one of claims 1-3, characterized in that, One of the support blocks (311) located in the middle is embedded with a fan (312) on the side away from the frame (2).

5. The multifunctional backpack according to claim 4, wherein The magnetic connection mechanism (6) includes a first connecting member (61) and a second connecting member (62) which are magnetically connected to each other; one end of the first connecting member (61) is threadedly connected to the corner member (21), and the other end of the first connecting member (61) extends radially in a frustum shape; the second connecting member (62) is slidably connected in the support block (311) through a guide rail (63), and a notch for disengaging from the first connecting member (61) is further provided on the second connecting member (62) along its sliding direction.

6. The multifunctional backpack according to claim 5, wherein, The snap mechanism (7) includes a third connecting member (71) and a card slot (72) formed in the support block (311); one end of the third connecting member (71) is threadedly connected to the corner member (21), and the other end of the third connecting member (71) extends radially in a frustum shape; the width of the upper half of the card slot (72) is greater than that of the third connecting member (71), and a convex ring for engaging with the third connecting member (71) is provided on the inner side of the lower half of the card slot (72).

7. The multifunctional backpack according to claim 6, wherein Each of the support blocks (311) includes a bottom plate and a mounting frame adapted to the edge of the bottom plate, and a honeycomb-shaped grid is provided in the middle of the bottom plate.

8. The multifunctional backpack according to claim 1 or 7, characterized in that, The back auxiliary structure (3) is provided with a groove (34) corresponding to the upper end of the back strap (4), and a plurality of cross bars for inserting the back strap (4) are mounted in the groove (34).

9. The multifunctional backpack according to claim 8, wherein, Connecting pieces (35) are respectively rotatably connected to both sides of the lower end of the back auxiliary structure (3), and threading holes for connecting with the back strap (4) are provided on the connecting pieces (35).

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