CN115088935B

CN115088935B - Knapsack chest waistband structure and use knapsack thereof

Info

Publication number: CN115088935B
Application number: CN202210727304.2A
Authority: CN
Inventors: 江羚
Original assignee: Guangdong Zuji Footwear Co ltd
Current assignee: Guangdong Zuji Footwear Co ltd
Priority date: 2022-06-25
Filing date: 2022-06-25
Publication date: 2024-02-13
Anticipated expiration: 2042-06-25
Also published as: CN115088935A

Abstract

The utility model relates to a technical field of knapsack especially relates to a knapsack chest waistband structure and use knapsack thereof, a first aspect, a knapsack chest waistband structure, including two baldric and two waist support belts, install waist support adjustment area between two waist support belts, sliding connection has the locking area between two baldric, the middle part of locking area, waist support adjustment area all is provided with waist support connection structure, waist support connection structure is used for adjusting the length dimension of locking area, or waist support adjustment area, a second aspect, a knapsack, including a knapsack chest waistband structure, including the inclusion, two baldric and two waist support belts, two baldric, two waist support belts all set up the back at the inclusion, the back of inclusion is provided with the cushion layer, in order to improve the practicality of baldric, this application provides a knapsack chest waistband structure and use knapsack thereof.

Description

Knapsack chest waistband structure and use knapsack thereof

Technical Field

The application relates to the technical field of backpacks, in particular to a backpack chest waistband structure and an application backpack thereof.

Background

The knapsack is a container for loading a certain volume of articles in daily life of people, provides convenience for traveling and carrying the articles for people, and is generally composed of a knapsack body and two shoulder straps in the market.

When a user uses the backpack, the two shoulder straps are collapsed on the shoulders, the weight of the backpack is borne by the shoulders and the back, and in order to reduce the slipping of the shoulder straps in the walking or running process of the user, the shoulder straps in the prior art are also fixedly provided with waist-binding parts, and the waist of the user can be locked with the backpack by utilizing the waist-binding parts of the shoulder straps, so that the horizontal directions of the two shoulder straps are restrained, and the falling-off situation of the shoulder straps is reduced.

However, most shoulder belts and waists on the market are fixedly connected with the shoulder belts, the shoulder belts and the bag body are fixedly connected, and the shoulder belts of the backpack in the prior art are difficult to meet different requirements of each person due to different shoulder thicknesses, different fat and thin degrees and different heights of the heights of each person, so that the fitness between the shoulder belts and the shoulders is low, and the experience feeling of a user is poor.

In addition, the shoulder strap girdling portion in the prior art is provided with a connecting structure, and a common connecting structure is provided with a magic tape, a buckle or a hasp, so that the adhesiveness between the primary and secondary surfaces of the magic tape can be reduced along with the increase of the use length of the backpack, and the buckle or the hasp can be damaged and even blocked due to repeated disassembly of a user.

Therefore, the shoulder straps in the prior art have poor adjustability, and therefore the practicality of the shoulder straps of the backpack is not high.

Disclosure of Invention

In order to improve the practicality of knapsack baldric, this application provides a knapsack chest waistband structure and uses knapsack thereof.

In a first aspect, the present application provides a knapsack chest waistband structure, adopts following technical scheme:

the utility model provides a knapsack chest waistband structure, includes two baldric and two waist support belts, two install the waist support adjustment area between the waist support belt, two sliding connection has the locking area between the baldric, the locking area the middle part of waist support adjustment area all is provided with waist support connection structure, waist support connection structure is used for adjusting the locking area, perhaps the length dimension of waist support adjustment area.

Through adopting above-mentioned technical scheme, waist support adjusting band, locking belt's setting makes inclusion back up the portion and pastes tightly user's back, and the shoulder belt part pastes tightly user's forechest, along with user's health's swing, reduces the condition that the shoulder belt drops and appears, has improved the compliance of baldric, simultaneously, can keep balanced better when user's knapsack is carried for the knapsack unload the power face wider, lighten user's heavy burden and feel, under waist support connection structure's effect, the user can be conveniently adjust waist support adjusting band and locking belt's length, and then the user of different waistlines of adaptation has improved the suitability practicality of chest waistband.

Preferably, the waist support connection structure comprises a first adjusting belt and a second adjusting belt, wherein a male buckle is arranged at one end of the first adjusting belt, a female buckle is arranged at one end of the second adjusting belt, and an assembly component is arranged between the male buckle and the female buckle.

Through adopting above-mentioned technical scheme, adopt the male thread to bite each other between first regulation area and the second regulation area and realize being connected with the box, make the process of adjusting waist support regulation area or locking area labour saving and time saving more, compare with the magic subsides connection structure among the prior art, have higher use sustainability, compare with buckle and hasp among the prior art, have better simple operation nature, reduce repeatedly disassemble connection structure and take off the step of package, make knapsack bear and take off the process of package more easily operation, can be applied to extensive crowd, the practicality of knapsack baldric has been improved.

Preferably, the shoulder strap is fixed with a height adjusting guide rail and a pressing strip, the height adjusting guide rail and the pressing strip are arranged in parallel, one end, close to the shoulder strap, of the first adjusting strap and the second adjusting strap is provided with a sliding clamp, the sliding clamp is arranged between the height adjusting guide rail and the pressing strip, and the sliding clamp is connected with the height adjusting guide rail in a sliding mode.

Through adopting above-mentioned technical scheme, the user through removing the slip clamp, can conveniently adjust the high position of locking area, and then can adapt to the user of different heights, improved the adherence of baldric, the setting of compressing tightly the strip can provide spacing effect for the slip clamp, has improved the connection stability between slip clamp and the altitude mixture control guide rail effectively.

Preferably, a shoulder strap length adjusting assembly is arranged between the shoulder strap and the bag body, and the shoulder strap length adjusting assembly is used for adjusting the length of the shoulder strap.

Through adopting above-mentioned technical scheme, under the effect of baldric length adjustment subassembly, the user can adjust the whole length dimension of baldric conveniently, makes the user that the baldric can adapt to different heights, has improved the compliance of baldric.

Preferably, the shoulder strap length adjustment assembly includes: the connecting belt is fixed at the bottom end of the shoulder strap; the connecting buckle is fixed at one end of the connecting belt; an adjusting belt fixed on the outer wall of the bag body; and the adjusting belt limiting assembly is arranged on the connecting buckle, wherein the adjusting belt penetrates through the middle part of the connecting buckle, and the adjusting belt limiting assembly is used for locking the part of the adjusting belt penetrating through the connecting buckle.

Through adopting above-mentioned technical scheme, the user passes the middle part of connector link to the regulation area, then pulls the regulation area with force, realizes adjusting the length dimension of baldric, overlaps the setting to the input and the output of regulation area, under the effect of the spacing subassembly of regulation area, can lock the part that the regulation area passed the connector link.

Preferably, the adjusting strap limiting assembly includes: the rotating shaft is arranged in the middle of the connecting buckle; a pressing sheet rotatably connected to the rotating shaft; the matched pressing strip is fixed in the middle of the connecting buckle and is arranged in parallel with the rotating shaft; a limiting buckle arranged on the adjusting belt; the limiting buckle is used for locking the part of the adjusting belt, which bypasses the matched pressing strip, and one side, close to the matched pressing strip, of the pressing strip abuts against the adjusting belt.

Through adopting above-mentioned technical scheme, spacing buckle locking is at the part of adjusting band input and the range upon range of setting of output, accomplishes the adjustment to the length dimension of baldric, and the preforming supports tightly on the adjusting band, cooperates the layering to play the supporting role, can lock the adjusting band firmly in the connector link, has improved locking stability.

Preferably, a locking pressing tooth is arranged on one side of the pressing piece, which is close to the matched pressing strip.

Through adopting above-mentioned technical scheme, when the preforming supports tightly on the regulation area, the setting of locking pressure tooth can increase the frictional force between locking pressure tooth and the regulation area, makes the difficult emergence of regulation area slide, has improved locking stability.

Preferably, the waist support connection structure comprises a first adjusting belt and a second adjusting belt, wherein strap buckles are arranged on the first adjusting belt and the second adjusting belt respectively, the first adjusting belt is locked by the strap buckles after being movably connected with the male buckle, and the second adjusting belt is locked by the strap buckles after being movably connected with the female buckle.

Through adopting above-mentioned technical scheme, the band buckle has good constraint rope belt's effect, under the effect of band buckle, the user can conveniently adjust the length dimension of first regulation area, second regulation area to the user of the different waistline sizes of adaptation, and, through constraint first regulation area pass the position of pin thread part and the second regulation area passes the position of box part, realize the location and the locking function of position.

Preferably, an opening plate is fixed on one side of the pressing sheet far away from the rotating shaft, and an arc surface is arranged on the opening plate.

By adopting the technical scheme, the lifting plate is fixed on one side of the pressing piece far away from the rotating shaft, so that a user can conveniently turn the lifting plate, and convenience is improved.

In addition, the application also provides a knapsack, adopts following technical scheme:

the utility model provides a knapsack, includes a knapsack chest waistband structure, includes the inclusion, two the baldric, two the waist support area all sets up the back of inclusion, the back of inclusion is provided with the protection bed course.

By adopting the technical scheme, the protection cushion layer is arranged on the back of the backpack body, so that the comfort level of a user when carrying the backpack is improved.

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

1. the waist support adjusting belt and the locking belt are arranged, so that the backpack body back pad part is tightly attached to the back of a user, the shoulder belt part is tightly attached to the front chest of the user, the situation that the shoulder belt falls off is reduced along with the swing of the body of the user, the fitting property of the shoulder belt is improved, and meanwhile, the user can keep balance better when carrying the backpack, the force unloading surface of the backpack is wider, and the load feeling of the user is lightened;

2. the waist support adjusting belt and the locking belt are connected by mutual engagement between the male buckle and the female buckle, so that the process of adjusting the waist support adjusting belt or the locking belt is more time-saving and labor-saving, the step of repeatedly disassembling the connecting structure to carry out bag removal is reduced, the knapsack carrying and bag removal process is easier to operate, the backpack is applicable to a wide range of people, and the practicability of the knapsack shoulder strap is improved;

3. the limiting buckle locks the part which is arranged at the input end and the output end of the adjusting belt in a stacking way, the adjustment of the length dimension of the shoulder belt is completed, the pressing piece is abutted against the adjusting belt, the supporting effect is achieved by matching with the pressing strip, the adjusting belt can be firmly locked in the connecting buckle, and the locking stability is improved.

Drawings

FIG. 1 is a schematic view of the whole structure of the backpack of example 1

Fig. 2 is a schematic view showing the overall structure of the backpack chest belt structure of example 1.

Fig. 3 is a schematic view showing a state when the connector link is opened in embodiment 1.

Fig. 4 is a schematic view showing a state when the connecting buckle is closed in example 1.

Fig. 5 is an enlarged view of a in fig. 1.

Fig. 6 is a schematic view showing the overall structure of the locking belt in embodiment 1.

Fig. 7 is a schematic view of the structure of the assembly member in embodiment 1.

Fig. 8 is a bottom view of fig. 7.

Fig. 9 is a schematic view of the structure of the assembly member in embodiment 2.

Fig. 10 is a bottom view of fig. 9.

Fig. 11 is a schematic structural diagram of a limit buckle in embodiment 3.

Reference numerals illustrate: 1. a shoulder strap; 21. waist protecting belts; 211. a waist support adjusting belt; 22. a locking belt; 31. the binding belt is buckled; 32. a first adjustment belt; 33. a second adjustment belt; 4. a male buckle; 41. a tape winding adjusting part; 411. a slot; 42. a pin joint part; 421. a magnetic block mounting column; 422. a magnetic block mounting cavity; 423. a first groove; 424. a first magnetic block; 43. locking the protruding blocks; 431. a through groove; 432. a bite bar; 5. a female buckle; 51. a tape adjusting section; 511. matching with the pressing teeth; 52. a female buckle attaching part; 521. a second groove; 522. a second magnetic block; 523. inserting blocks; 524. a snap fit strip; 53. the convex blocks penetrate through the jacks; 61. a slide clamp; 62. a height-adjusting guide rail; 63. a compression bar; 71. a connecting belt; 72. a connecting buckle; 721. tabletting; 7211. locking the pressing teeth; 722. a rotating shaft; 723. matching with a pressing bar; 724. lifting the plate; 73. an adjusting belt; 74. limiting buckle; 741. a buckle body; 742. a clamping cover; 743. a limit buckle body; 744. a limit bar; 8. a reflective tape; 9. a bag body; 91. and a protective cushion layer.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-11.

The embodiment of the application discloses a knapsack chest waistband structure.

Example 1:

referring to fig. 1 and 2, a knapsack chest waistband structure, including baldric 1 and waist support belt 21, baldric 1 and waist support belt 21 all have two, baldric 1 and waist support belt 21's inside all is filled with the cavernosum, and baldric 1's shape can be adjusted according to human back condition to improve the comfort level when the user carries the knapsack, in this embodiment, the one end of waist support belt 21 is sewed up fixedly with inclusion 9, and baldric 1's top is sewed up fixedly with inclusion 9, and baldric 1's bottom is provided with baldric length adjustment subassembly, and the user passes through baldric length adjustment subassembly and realizes adjusting baldric 1's length dimension.

The shoulder strap length adjusting assembly comprises a connecting strap 71, a connecting buckle 72 and an adjusting strap 73, specifically, the connecting strap 71 is fixed at the bottom end of the shoulder strap 1, the connecting buckle 72 is fixed at one end of the connecting strap 71 far away from the shoulder strap 1, the adjusting strap 73 is fixed at the position of the bag body 9 close to the connecting buckle 72, one end of the adjusting strap 73 close to the connecting buckle 72 penetrates through the middle of the connecting buckle 72, and under the action of the adjusting strap limiting assembly, the tensioning force of the adjusting strap 73 and the limitation of the position can be adjusted.

Referring to fig. 2 and 3, the adjusting strap limiting assembly includes a rotating shaft 722, a pressing piece 721, a matching pressing bar 723, and a limiting buckle 74, wherein the rotating shaft 722 is fixed in the middle of the connecting buckle 72, the matching pressing bar 723 is fixed in the middle of the connecting buckle 72, so that the matching pressing bar 723 and the rotating shaft 722 are arranged in parallel, the pressing piece 721 is rotationally connected on the rotating shaft 722, a locking pressing tooth 7211 is arranged on one side of the pressing piece 721, which is close to the matching pressing bar 723, in order to improve the convenience of lifting the pressing piece 721 by a user, a lifting plate 724 is fixed on one side of the pressing piece 721, which is far away from the rotating shaft 722, and an arc surface is arranged on the lifting plate 724, so that the lifting plate 724 is convenient for the user to lift.

Referring to fig. 2 and 4, when the adjusting strap 73 passes through the connecting buckle 72, that is, the adjusting strap 73 is actively wound on the matching pressing strip 723, meanwhile, the input end and the output end of the adjusting strap 73 are stacked, in this embodiment, referring to fig. 2 and 5, the limiting buckle 74 is a strap buckle with a cross section in a shape of a 'back', the limiting buckle 74 comprises a buckle body 741 and a buckle cover 742, the buckle cover 742 is hinged on one side of the buckle body 741, a strap penetrating space is formed between the buckle body 741 and the buckle cover 742, the portion of the adjusting strap 73, which bypasses the matching pressing strip 723, is locked by the limiting buckle 74, the tension of the adjusting strap 73 can be adjusted, in addition, one side of the pressing strap 721 with locking pressing teeth 7211 is abutted against the adjusting strap 73, the limitation of the position of the adjusting strap 73 is achieved, and the length and the size of the shoulder strap 1 can be adjusted to adapt to users with different heights, and the fitness of the shoulder strap 1 is improved.

Referring to fig. 1 and 6, a waist support adjusting band 211 is installed between two waist support bands 21, a locking band 22 is slidably connected between two shoulder straps 1, in the embodiment of the present application, the structures of the waist support adjusting band 211 and the locking band 22 are identical, the middle parts of the waist support adjusting band 211 and the locking band 22 are all provided with waist support connection structures, and a user can conveniently adjust the length sizes of the locking band 22 and the waist support adjusting band 211 through the waist support connection structures, so that the waist support adjusting band can be adapted to users with different waistline sizes.

Referring to fig. 1 and 7, the waist support connection structure includes a first adjusting strap 32, a male buckle 4, a second adjusting strap 33, and a female buckle 5, and strap buckles 31 are respectively disposed on the first adjusting strap 32 and the second adjusting strap 33, specifically, the strap buckles 31 have the same structure as the limit buckles 74, the first adjusting strap 32 disposed on the waist support adjusting strap 211 has one end fixed by stitching with the waist support strap 21 adjacent thereto, the other end movably winds with the male buckle 4, and then performs positioning and locking by one strap buckle 31, and similarly, the second adjusting strap 33 disposed on the waist support adjusting strap 211 has one end fixed by stitching with the waist support strap 21 adjacent thereto, the other end movably winds with the female buckle 5, and then performs positioning and locking by the other strap buckle 31.

When a user wears the backpack, the length and the size of the first adjusting belt 32 and the second adjusting belt 33 are adjusted firstly, and then the male buckle 4 and the female buckle 5 are meshed with each other, so that a closed circle is formed between the back surface of the backpack body 9, the waist protecting belt 21, the waist protecting adjusting belt 211 and the waist protecting belt 21, the function of restraining the waist of the user can be achieved, and the balance and the bearing of the user during the backpack are ensured.

Referring to fig. 6 and 8, since the waist support adjusting strap 211 and the locking strap 22 have the same structure, the first adjusting strap 32 provided on the locking strap 22 has one end slidably connected to the shoulder strap 1 adjacent thereto and the other end movably wound around the male buckle 4, and then is positionally locked by one strap buckle 31, and similarly, the second adjusting strap 33 provided on the locking strap 22 has one end slidably connected to the shoulder strap 1 adjacent thereto and the other end movably wound around the female buckle 5 and then is positionally locked by the other strap buckle 31.

When a user wears the backpack, the male buckle 4 and the female buckle 5 arranged on the locking belt 22 are meshed with each other, so that stability of the backpack can be further strengthened, the back pad part of the backpack body 9 is tightly attached to the back of the user, the shoulder belt 1 is tightly attached to the chest of the user, and the situation that the shoulder belt 1 falls off is reduced along with the swing of the body of the user, so that the fitting property of the shoulder belt 1 is improved.

Referring to fig. 6 and 7, the male buckle 4 and the female buckle 5 are integrally formed, the male buckle 4 comprises a winding adjusting portion 41, a male buckle attaching portion 42 and a locking protrusion 43, the first adjusting strap 32 is movably wound on the winding adjusting portion 41, a slot 411 is formed in the side wall of the winding adjusting portion 41, the top surface of the male buckle attaching portion 42 is smoothly arranged, the locking protrusion 43 is fixed on the top surface of one end, far away from the slot 411, of the male buckle 4, a through slot 431 is formed in the side surface of the locking protrusion 43 in a penetrating mode, the through slot 431 is directly opposite to the slot 411, and a snap strip 432 is fixed in the middle of the through slot 431.

Correspondingly, the female buckle 5 comprises a coiled tape adjusting portion 51 and a female buckle attaching portion 52, and referring to fig. 6 and 8, the second adjusting tape 33 is movably coiled on the coiled tape adjusting portion 51, in the embodiment of the application, the top surface of the coiled tape adjusting portion 51 is provided with the matched pressing teeth 511, so that the friction force between the second adjusting tape 33 and the coiled tape adjusting portion 51 can be increased, and the second adjusting tape 33 is not easy to loosen and slide when the length and the size of the second adjusting tape 33 are adjusted, so that the positioning precision of the strap buckle 31 is improved to a certain extent.

Referring to fig. 7 and 8, the female buckle 5 is provided with a protruding block penetrating hole 53 in a penetrating manner, a snap-fit strip 524 is fixed at a position of the female buckle 5 close to the protruding block penetrating hole 53, a guiding inclined plane is provided on the top surface of the snap-fit strip 524, the guiding inclined plane inclines downwards from the top surface of the female buckle 5 to the protruding block penetrating hole 53, and the extending direction of the snap-fit strip 524 is consistent with that of the snap-fit strip 432. In addition, an insert block 523 is fixed on one side of the female buckle 5 close to the male buckle 4, and the shape and size of the insert block 523 are consistent with those of the inner cavity of the slot 411.

When the pin 4 is assembled with the box 5, the locking protruding blocks 43 on the pin 4 are inserted into the protruding block insertion holes 53 on the box 5 in an adapting way, meanwhile, the insertion blocks 523 are inserted into the insertion slots 411 in an adapting way, the engagement matching strips 524 penetrate through the through grooves 431, so that the engagement strips 432 and the engagement matching strips 524 are in sliding engagement, namely, the engagement strips 432 are arranged on the guide inclined surfaces of the engagement matching strips 432 in a sliding way, the connection between the pin 4 and the box 5 is completed, and the connection between the first adjusting belt 32 and the second adjusting belt 33 is further realized.

Otherwise, the user presses the locking protrusion 43 on the pin 4 forcefully to make the snap bar 432 and the snap fit bar 524 slide and separate, and simultaneously, the locking protrusion 43 is separated from the protrusion penetrating hole 53, and the inserting block 523 is separated from the inserting slot 411, so as to realize the separation between the pin 4 and the box 5.

Referring to fig. 2 and 6, a height adjusting guide rail 62 and a pressing strip 63 are fixed on the shoulder strap 1, in this embodiment, the height adjusting guide rail 62 and the pressing strip 63 are arranged in parallel, the height adjusting guide rail 62 is a circular guide rail fixed on the shoulder strap 1, the extending direction of the height adjusting guide rail 62 is consistent with that of the shoulder strap 1, one end of the first adjusting strap 32 and the second adjusting strap 33, which is close to the shoulder strap 1, is provided with a sliding clamp 61, one side of the sliding clamp 61, which is close to the height adjusting guide rail 62, is provided with a semicircular sliding groove, the sliding clamp 61 is arranged between the height adjusting guide rail 62 and the pressing strip 63, when the shoulder strap 1 is produced, the sliding clamp 61 is firstly connected on the height adjusting guide rail 62 in a sliding manner, then the top end of the shoulder strap 1 is sewn and fixed with the bag body 9, the bottom end of the shoulder strap 1 is connected with a shoulder strap length adjusting assembly, the side wall of the pressing strip 63 is sewn and the height adjusting guide rail 62 are fixed, limiting of the sliding clamp 61 is realized, so that the risk of the sliding clamp 61 falling out of the height adjusting guide rail 62 is reduced, and the connection stability between the sliding clamp 61 is improved.

By moving the slide clamp 61, the user can conveniently adjust the height position of the locking belt 22, so that the shoulder belt can adapt to users with different heights, and the fitting performance of the shoulder belt 1 is improved.

In order to improve the marking effect of the backpack, referring to fig. 1 and 2, the side wall of the shoulder strap 1 is provided with a reflective strip 8 to ensure that it is more easily perceived in a dim environment, improving the safety of the user during walking.

Still disclose a knapsack in this embodiment, including a knapsack chest waistband structure, refer to fig. 1 and 2, including inclusion, two baldric and two waist support bands, two baldric 1, two waist support bands 21 all set up the back at inclusion 9, and the back of inclusion 9 is provided with the cushion layer 91, and the inside of cushion layer 91 is filled with the sponge to the comfort level when the user carries the knapsack is improved.

The embodiment of the application discloses knapsack chest waistband structure and application knapsack's implementation principle does:

when a user wears the backpack, the two shoulder straps 1 are firstly put down on the shoulder, the pressing piece 721 is lifted, the adjusting strap 73 is pulled, after the length of the shoulder straps 1 is adjusted, the limiting buckle 74 is locked at the overlapped part of the input end and the output end of the adjusting strap 73, and the pressing piece 721 is abutted against the adjusting strap 73, so that the adjustment of the length and the size of the shoulder straps 1 is completed.

Then, the waist support adjusting belt 211 and the locking belt 22 are sequentially connected, that is, the length sizes of the first adjusting belt 32 and the second adjusting belt 33 are adjusted under the action of the belt buckle 31, then the locking convex blocks 43 on the male buckle 4 are matched and inserted into the convex block penetrating holes 53 on the female buckle 5, meanwhile, the inserting blocks 523 are matched and inserted into the inserting slots 411, the snap fit strips 524 penetrate through the through grooves 431, so that the snap strips 432 and the snap fit strips 524 are in sliding engagement, and finally, the sliding clamp 61 is moved to adjust the height position of the locking belt 22.

Example 2:

this embodiment differs from embodiment 1 in that the assembly component is different.

Referring to fig. 9 and 10, the assembly component includes a first magnetic block 424 and a second magnetic block 522, in this embodiment, a first groove 423 is provided on the bottom wall of the pin joint portion 42, a magnetic block mounting post 421 is fixed in the middle of the first groove 423, a magnetic block mounting cavity 422 is provided in the middle of the magnetic block mounting post 421, and the shape and size of the magnetic block mounting cavity 422 are determined according to the situation, and the first magnetic block 424 is mounted in the middle of the magnetic block mounting cavity 422.

Correspondingly, a second groove 521 is formed in the bottom wall of the female buckle attaching portion 52, a magnetic block mounting column 421 is arranged in the middle of the second groove 521, a magnetic block mounting cavity 422 is formed in the magnetic block mounting column 421, a second magnetic block 522 is mounted in the magnetic block mounting cavity 422, and the magnetism of the second magnetic block 522 is opposite to that of the first magnetic block 424.

The first magnetic block 424 of the pin 4 and the second magnetic block 522 of the box 5 are attracted to each other, so that the connection between the pin 4 and the box 5 is completed, and the connection between the first adjusting belt 32 and the second adjusting belt 33 is further realized.

Example 3:

this embodiment differs from embodiment 1 in that the limit catch 74 is different.

Referring to fig. 2 and 11, the limit buckle 74 includes a limit buckle body 743 and a limit strip 744, the limit buckle body 743 and the limit strip 744 are integrally formed, so that the limit buckle 74 is a strap buckle with a cross section in a shape of a Chinese character 'ri', in this embodiment, the adjusting strap 73 firstly passes through the middle part of the limit buckle body 743, that is, the adjusting strap 73 is actively wound on the limit strip 744, then the adjusting strap 73 passes through the connecting buckle 72, so that the adjusting strap 73 is actively wound on the matching pressing strip 723 at the same time, the input end and the output end of the adjusting strap 73 are stacked, and a user can limit the position of the adjusting strap 73 according to actual conditions, so that the length and the size of the shoulder strap 1 can be adjusted to adapt to users with different heights.

The foregoing is a preferred embodiment of the present application, which is merely illustrative of the present application and not intended to limit the scope of the present application in any way, so long as the present application is not limited thereto: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a knapsack chest waistband structure which is characterized in that, including two baldrics (1) and two waist support belts (21), two waist support adjustment area (211) are installed between waist support belts (21), two sliding connection has locking area (22) between baldrics (1), locking area (22) waist support adjustment area (211)'s middle part all is provided with waist support connection structure, waist support connection structure is used for adjusting locking area (22) waist support adjustment area (211) length dimension;

the waist support connecting structure comprises a first adjusting belt (32) and a second adjusting belt (33), wherein a male buckle (4) is arranged at one end of the first adjusting belt (32), a female buckle (5) is arranged at one end of the second adjusting belt (33), and an assembly component is arranged between the male buckle (4) and the female buckle (5);

the male buckle (4) comprises a belt winding adjusting part (41), a male buckle attaching part (42) and a locking lug (43), a slot (411) is formed in the side wall of the belt winding adjusting part (41), the top surface of the male buckle attaching part (42) is smoothly arranged, the locking lug (43) is fixed on the top surface of one end, far away from the slot (411), of the male buckle (4), a through slot (431) is formed in the side surface of the locking lug (43) in a penetrating mode, the through slot (431) and the slot (411) are directly opposite to each other, and a meshing strip (432) is fixed in the middle of the through slot (431);

the female buckle (5) comprises a coiled tape adjusting part (51) and a female buckle attaching part (52), a lug penetrating hole (53) is formed in the female buckle (5) in a penetrating mode, an engagement matching strip (524) is fixed at the position, close to the lug penetrating hole (53), of the female buckle (5), a guide inclined surface is formed in the top surface of the engagement matching strip (524), the guide inclined surface slopes downwards from the top surface of the female buckle (5) to the lug penetrating hole (53), the extending direction of the engagement matching strip (524) is consistent with the extending direction of the engagement strip (432), an insertion block (523) is fixed on one side, close to the male buckle (4), of the female buckle (5), and the shape and the size of the insertion block (523) are consistent with the size of an inner cavity of the insertion groove (411).

2. The backpack chest belt structure according to claim 1, wherein the assembly component comprises a first magnetic block (424) and a second magnetic block (522), a first groove (423) is formed in the bottom wall of the pin joint portion (42), a magnetic block mounting column (421) is fixed in the middle of the first groove (423), a magnetic block mounting cavity (422) is formed in the middle of the magnetic block mounting column (421), the first magnetic block (424) is mounted in the middle of the magnetic block mounting cavity (422), a second groove (521) is formed in the bottom wall of the box joint portion (52), a magnetic block mounting column (421) is arranged in the middle of the second groove (521), a magnetic block mounting cavity (422) is formed in the inner portion of the magnetic block mounting column (421), and the second magnetic block (522) is mounted in the magnetic block mounting cavity (422) and is opposite to the first magnetic block (424).

3. The backpack chest belt structure according to claim 1 or 2, wherein the shoulder strap (1) is fixedly provided with a height adjusting guide rail (62) and a pressing strip (63), the height adjusting guide rail (62) and the pressing strip (63) are arranged in parallel, one end of the first adjusting strap (32) and one end of the second adjusting strap (33) close to the shoulder strap (1) are provided with sliding clamps (61), the sliding clamps (61) are arranged between the height adjusting guide rail (62) and the pressing strip (63), and the sliding clamps (61) are connected with the height adjusting guide rail (62) in a sliding manner.

4. A backpack chest belt structure according to claim 1 or 2, characterized in that a shoulder strap length adjusting assembly is arranged between the shoulder strap (1) and the bag body (9), the shoulder strap length adjusting assembly being used for adjusting the length dimension of the shoulder strap (1).

5. The backpack chest belt configuration of claim 4 wherein the shoulder strap length adjustment assembly comprises: a connecting band (71) fixed at the bottom end of the shoulder strap (1); a connecting buckle (72) fixed at one end of the connecting belt (71); an adjusting belt (73) fixed on the outer wall of the bag body (9); and an adjusting band limiting assembly arranged on the connecting buckle (72), wherein the adjusting band (73) passes through the middle part of the connecting buckle (72), and the adjusting band limiting assembly is used for locking the part of the adjusting band (73) passing through the connecting buckle (72).

6. The backpack chest belt configuration of claim 5 wherein the adjustment strap stop assembly comprises: a rotating shaft (722) arranged in the middle of the connecting buckle (72); a presser piece (721) rotatably connected to the rotation shaft (722); a matching pressing bar (723) which is fixed in the middle of the connecting buckle (72) and is arranged in parallel with the rotating shaft (722); and a limit buckle (74) arranged on the adjusting belt (73); the limiting buckle (74) is used for locking the part, bypassing the matching pressing strip (723), of the adjusting belt (73), and one side, close to the matching pressing strip (723), of the pressing piece (721) abuts against the adjusting belt (73).

7. The backpack chest belt structure according to claim 6, wherein the compression sheet (721) is provided with locking compression teeth (7211) on a side close to the mating compression bar (723).

8. The backpack chest belt structure according to claim 1 or 2, wherein the waist support connecting structure comprises a first adjusting belt (32) and a second adjusting belt (33), wherein the first adjusting belt (32) and the second adjusting belt (33) are respectively provided with a belt buckle (31), the first adjusting belt (32) is movably connected with the male buckle (4) and then is locked through the belt buckle (31), and the second adjusting belt (33) is movably connected with the female buckle (5) and then is locked through the other belt buckle (31).

9. The backpack chest belt structure according to claim 6, wherein an opening plate (724) is fixed on one side of the pressing piece (721) away from the rotating shaft (722), and an arc surface is formed on the opening plate (724).

10. The backpack is characterized by comprising the backpack chest waistband structure according to claim 1, and comprises a backpack body (9), wherein the shoulder straps (1) and the waist protecting bands (21) are arranged on the back of the backpack body (9), and a protecting cushion layer (91) is arranged on the back of the backpack body (9).