backrest

Abstract

The present application belongs to the technical field of outdoor equipment, and discloses a back frame, which comprises a back plate, a supporting strip, a shoulder strap and a waistband. The back plate comprises a back plate body, which abuts against the back of a human body. The supporting strip can be attached to the back of the human body and is installed on one side of the back plate body abutting against the back of the human body. The shoulder strap comprises a first shoulder strap body and a second shoulder strap body, which are installed on one side of the back plate body away from the supporting strip in a height-adjustable manner and are bent towards the direction of the supporting strip to form a shoulder accommodating space, and the inner diameter of the shoulder accommodating space can be adjusted. The waistband comprises a waistband body, which is installed on the back plate body, and a part of the waistband is connected to the shoulder strap. The waistband body is buckled to form a waist accommodating space, and the inner diameter of the waist accommodating space can be adjusted. The back frame can be adjusted according to the height and body shape of a user, thereby avoiding uneven stress on the waist, back and shoulders of the user and reducing the fatigue of the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of outdoor equipment, and particularly relates to a back frame. BACKGROUND

[0002] The outdoor back frame is a tool for carrying equipment or supplies when a user carries out outdoor activities such as hiking or exploration. The current outdoor back frame is rigid in shape and cannot be adjusted according to the height and body shape of the user, which does not conform to the ergonomic design principle and is prone to cause uneven stress on the waist, back and shoulders of the user, and the user is prone to fatigue, which brings a lot of inconvenience to outdoor activities.

[0003] Therefore, there is an urgent need for a back frame to solve the above problems. SUMMARY

[0004] The present application aims to provide a back frame which can be adjusted according to the height and body shape of the user, avoiding the problem of uneven stress on the waist, back and shoulders of the user, and reducing the fatigue of the user.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] The back frame comprises a back plate, a support bar, a shoulder strap and a waist belt. The back plate comprises a back plate body which abuts against the back of the human body. The support bar can be attached to the back of the human body and is installed on one side of the back plate body abutting against the back of the human body. The shoulder strap comprises a first shoulder strap body and a second shoulder strap body which are installed on the side of the back plate body away from the support bar in a height-adjustable manner and are bent towards the direction of the support bar to form a shoulder accommodating space, and the inner diameter of the shoulder accommodating space can be adjusted. The waist belt comprises a waist belt body which is installed on the back plate body, and a part of the waist belt is connected to the shoulder strap. The waist belt body is looped to form a waist accommodating space, and the inner diameter of the waist accommodating space can be adjusted.

[0007] As a preferred scheme of the back frame provided by the present application, the back plate further comprises a first back plate webbing and a second back plate webbing which are arranged in a spaced manner in the width direction of the back plate body, and the support bar is two, and the two support bars are respectively arranged in the first back plate webbing and the second back plate webbing.

[0008] As a preferred scheme of the back frame provided by the present application, the back plate further comprises a first shoulder strap fixing assembly and a second shoulder strap fixing assembly, the first shoulder strap fixing assembly comprises a plurality of first shoulder strap fixing strips arranged at intervals in the height direction of the back plate body, the first shoulder strap fixing strips are connected to the side of the back plate body away from the first back plate webbing, the first shoulder strap body is divided into a first fixing segment and a first shoulder lap segment, the first fixing segment is arranged between the first shoulder strap fixing strips and the back plate body;

[0009] The second shoulder strap fixing assembly comprises a plurality of second shoulder strap fixing strips arranged at intervals in the height direction of the back plate body, the second shoulder strap fixing strips are connected to the side of the back plate body away from the second back plate webbing, the second shoulder strap body is divided into a second fixing segment and a second shoulder lap segment, the second fixing segment is arranged between the second shoulder strap fixing strips and the back plate body.

[0010] As a preferred scheme of the back frame provided by the present application, the back plate further comprises a first shoulder strap fixing assembly and a second shoulder strap fixing assembly, the first shoulder strap fixing assembly comprises a plurality of first shoulder strap fixing strips arranged at intervals in the height direction of the back plate body, the first shoulder strap fixing strips are connected to the side of the back plate body away from the first back plate webbing, the first shoulder strap body is divided into a first fixing segment and a first shoulder lap segment, the first fixing segment is arranged between the first shoulder strap fixing strips and the back plate body;

[0011] The second fixing segment is arranged between the second shoulder strap fixing strips and the back plate body.

[0012] As a preferred scheme of the back frame provided by the present application, the back plate further comprises a first shoulder strap fixing assembly and a second shoulder strap fixing assembly, the first shoulder strap fixing assembly comprises a plurality of first shoulder strap fixing strips arranged at intervals in the height direction of the back plate body, the first shoulder strap fixing strips are connected to the side of the back plate body away from the first back plate webbing, the first shoulder strap body is divided into a first fixing segment and a first shoulder lap segment, the first fixing segment is arranged between the first shoulder strap fixing strips and the back plate body;

[0013] As a preferred scheme of the back frame provided by the present application, the back plate further comprises a first shoulder strap fixing assembly and a second shoulder strap fixing assembly, the first shoulder strap fixing assembly comprises a plurality of first shoulder strap fixing strips arranged at intervals in the height direction of the back plate body, the first shoulder strap fixing strips are connected to the side of the back plate body away from the first back plate webbing, the first shoulder strap body is divided into a first fixing segment and a first shoulder lap segment, the first fixing segment is arranged between the first shoulder strap fixing strips and the back plate body;

[0014] The waist strap further comprises a first waist strap webbing and a second waist strap webbing, the first waist strap webbing and the second waist strap webbing are arranged at intervals and are connected to the waist strap body and are arranged in the first waist strap connecting carabiner and the second waist strap connecting carabiner respectively.

[0015] As a preferred scheme of the back frame provided by the present application, the waistband further comprises a third waistband strap and a fourth waistband strap, which are arranged at intervals and connected to the waistband body.

[0016] The shoulder strap further comprises a first shoulder strap ladder and a second shoulder strap ladder, the first shoulder strap ladder is connected to the end of the first shoulder strap segment, the second shoulder strap ladder is connected to the end of the second shoulder strap segment, the third waistband strap is arranged in the first shoulder strap ladder, and the fourth waistband strap is arranged in the second shoulder strap ladder.

[0017] As a preferred scheme of the back frame provided by the present application, the back plate further comprises a first shoulder strap fixing female buckle and a second shoulder strap fixing female buckle, which are arranged at intervals and mounted on the top of the back plate body.

[0018] The shoulder strap further comprises a third shoulder strap ladder and a fourth shoulder strap ladder, the third shoulder strap ladder is connected to the end of the first shoulder strap segment, the fourth shoulder strap ladder is connected to the end of the second shoulder strap segment, the third waistband strap is arranged in the third shoulder strap ladder, and the fourth waistband strap is arranged in the fourth shoulder strap ladder.

[0019] As a preferred scheme of the back frame provided by the present application, the waistband further comprises a waistband magic tape, which is sewn at the middle position of the waistband body.

[0020] The back plate further comprises a waistband fixing piece and a back plate magic tape, the waistband fixing piece is connected to the lower end of the back plate body, the back plate magic tape is sewn on the waistband fixing piece, the waistband fixing piece is folded to wrap the waistband body, and the back plate magic tape is attached to the waistband magic tape.

[0021] As a preferred scheme of the back frame provided by the present application, the waistband further comprises a first waistband adjusting belt, a second waistband adjusting belt, a waistband male buckle and a waistband female buckle, the first waistband adjusting belt and the second waistband adjusting belt are respectively connected to the two ends of the waistband body in a length-adjustable manner, the waistband male buckle is connected to the first waistband adjusting belt, the waistband female buckle is connected to the second waistband adjusting belt, and the waistband male buckle can be buckled to the waistband female buckle.

[0022] The present application has the following beneficial effects:

[0023] The back frame provided by the application comprises a back plate, a support strip, a shoulder strap and a waist belt. The back plate comprises a back plate body which abuts against the back of a human body to form support for the back of the human body. The support strip is capable of abutting against the back of the human body and is installed on one side of the back plate body abutting against the back of the human body. That is, the support strip conforms to the ergonomic principle and is capable of enhancing the comfort of the user when the user carries the back frame. The shoulder strap comprises a first shoulder strap body and a second shoulder strap body which are installed on one side of the back plate body away from the support strip in a height-adjustable manner and are bent towards the direction of the support strip to form a shoulder accommodating space, and the inner diameter of the shoulder accommodating space is adjustable. That is, the shoulder strap is capable of being adjusted according to the body shape of the user to enhance the comfort of the shoulder of the user. The waist belt comprises a waist belt body which is installed on the back plate body, a part of the waist belt is connected to the shoulder strap, and the waist belt body forms a waist accommodating space through ring buckling, and the inner diameter of the waist accommodating space is adjustable. That is, the waist belt is capable of being adjusted according to the body shape and waist circumference of the user to be more in line with the actual needs of the user. The back frame is capable of being adjusted according to the height and body shape of the user to avoid the problem that the force on the waist, back and shoulder of the user is uneven and to reduce the fatigue of the user. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a front structure schematic view of a back frame provided by an embodiment of the application;

[0025] Figure 2 is a back structure schematic view of a back frame provided by an embodiment of the application;

[0026] Figure 3 is a structure schematic view of a support strip provided by an embodiment of the application;

[0027] Figure 4 is a front schematic view of a back plate provided by an embodiment of the application;

[0028] Figure 5 is a back schematic view of a back plate provided by an embodiment of the application;

[0029] Figure 6 is a structure schematic view of a shoulder strap provided by an embodiment of the application;

[0030] Figure 7 is a front schematic view of a waist belt provided by an embodiment of the application;

[0031] Figure 8 is a back schematic view of a waist belt provided by an embodiment of the application;

[0032] Figure 9 is a front installation schematic view of a back frame provided by an embodiment of the application;

[0033] Figure 10Figure 2 is a back view of the back support of the present application.

[0034] Figure 1 is a front view of the back support of the present application.

[0035] 100, back plate; 110, back plate body; 121, first back plate strap; 122, second back plate strap; 131, first shoulder strap fixing strip; 132, second shoulder strap fixing strip; 141, first shoulder strap connecting buckle; 142, second shoulder strap connecting buckle; 150, cover sheet; 161, first waist strap connecting ladder buckle; 162, second waist strap connecting ladder buckle; 163, third waist strap connecting ladder buckle; 164, fourth waist strap connecting ladder buckle; 171, first shoulder strap fixing female buckle; 172, second shoulder strap fixing female buckle; 180, waist strap fixing sheet; 190, back plate magic tape;

[0036] 200, support strip;

[0037] 300, shoulder strap; 310, first shoulder strap body; 320, second shoulder strap body; 331, first shoulder strap strap; 332, second shoulder strap strap; 341, first shoulder strap ladder buckle; 342, second shoulder strap ladder buckle; 351, first shoulder strap fixing male buckle; 352, second shoulder strap fixing male buckle; 361, third shoulder strap ladder buckle; 362, fourth shoulder strap ladder buckle;

[0038] 400, waist strap; 410, waist strap body; 421, first waist strap strap; 422, second waist strap strap; 431, third waist strap strap; 432, fourth waist strap strap; 440, waist strap magic tape; 451, first waist strap adjusting strap; 452, second waist strap adjusting strap; 461, waist strap male buckle; 462, waist strap female buckle; 471, first waist strap reinforcing connecting strap; 472, second waist strap reinforcing connecting strap. DETAILED DESCRIPTION

[0039] The present application will be further described below in conjunction with the accompanying drawings and examples. It should be understood that the specific examples described herein are intended to be illustrative only and are not in any way limiting of the present application. In addition, it should be understood that, for ease of description, only the portions of the drawings that are pertinent to the present application are shown.

[0040] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0042] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, orientation or positional relationship shown in the drawings, are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0043] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary, only for the purpose of explaining the present application, and cannot be understood as a limitation on the present application.

[0044] Figure 1 A front structure schematic diagram of a back frame provided by an embodiment of the present application is shown; Figure 2 A back structure schematic diagram of a back frame provided by an embodiment of the present application is shown; Figure 3 A structure schematic diagram of a support strip provided by an embodiment of the present application is shown, with reference to Figures 1-3 The present embodiment provides a back frame, which comprises a back plate 100, a support strip 200, a shoulder strap 300 and a waist strap 400.

[0045] Specifically, the back plate 100 comprises a back plate body 110 abutting against the back of the human body; the support strip 200 can be attached to the back of the human body and is installed on the side of the back plate body 110 abutting against the back of the human body, that is, the support strip 200 conforms to the ergonomic principle and can enhance the comfort of the user when the user carries the back frame; the shoulder strap 300 comprises a first shoulder strap body 310 and a second shoulder strap body 320, the first shoulder strap body 310 and the second shoulder strap body 320 are installed on the side of the back plate body 110 away from the support strip 200 in a height-adjustable manner and are bent towards the direction of the support strip 200 to form a shoulder accommodating space, the inner diameter of the shoulder accommodating space can be adjusted, that is, the shoulder strap 300 can be adjusted according to the body shape of the user to enhance the comfort of the shoulder of the user; the waist strap 400 comprises a waist strap body 410, the waist strap body 410 is installed on the back plate body 110, a part of the waist strap 400 is connected to the shoulder strap 300, the waist strap body 410 forms a waist accommodating space in a looped manner, the inner diameter of the waist accommodating space can be adjusted, that is, the waist strap 400 can be adjusted according to the body shape and waist circumference of the user to be more in line with the actual needs of the user.

[0046] Figure 4 Fig. 1 shows a front view of the back plate according to an embodiment of the present application; Figure 5 Fig. 2 shows a back view of the back plate according to an embodiment of the present application, referring to Figure 4 and Figure 5 The back plate 100 further comprises a first back plate braid 121 and a second back plate braid 122, the first back plate braid 121 and the second back plate braid 122 are arranged in the width direction of the back plate body 110 in a spaced manner, the support strip 200 is two, and the two support strips 200 are respectively arranged in the first back plate braid 121 and the second back plate braid 122. The first back plate braid 121 and the second back plate braid 122 provide installation space for the two support strips 200.

[0047] In the embodiment, the back plate 100 has a Y-shaped structure, the first back plate braid 121 and the second back plate braid 122 are respectively arranged on the two forked plates at the upper part of the Y-shaped structure in the length direction. The two forked plates at the upper part of the Y-shaped structure are connected by a reinforcing braid to enhance the structural integrity of the back plate 100. When the user carries the back frame, the reinforcing braid abuts against the upper back of the user to enhance the comfort of use.

[0048] Figure 6 Fig. 4 shows a structure schematic view of the shoulder strap according to an embodiment of the present application, referring to Figures 1-6The backboard 100 further comprises a first shoulder strap fixing assembly and a second shoulder strap fixing assembly. The first shoulder strap fixing assembly comprises a plurality of first shoulder strap fixing strips 131 arranged at intervals in the height direction of the backboard body 110, the first shoulder strap fixing strips 131 being connected to the side of the backboard body 110 away from the first backboard webbing 121, the first shoulder strap body 310 being divided into a first fixing section and a first shoulder lap section, the first fixing section being arranged between the first shoulder strap fixing strips 131 and the backboard body 110. Through the above arrangement, the first shoulder strap body 310 can be reliably connected to the backboard body 110.

[0049] Similarly, the second shoulder strap fixing assembly comprises a plurality of second shoulder strap fixing strips 132 arranged at intervals in the height direction of the backboard body 110, the second shoulder strap fixing strips 132 being connected to the side of the backboard body 110 away from the second backboard webbing 122, the second shoulder strap body 320 being divided into a second fixing section and a second shoulder lap section, the second fixing section being arranged between the second shoulder strap fixing strips 132 and the backboard body 110. Through the above arrangement, the second shoulder strap body 320 can be reliably connected to the backboard body 110.

[0050] Specifically, the backboard 100 further comprises a first shoulder strap connecting buckle 141 and a second shoulder strap connecting buckle 142 arranged at intervals, the first shoulder strap connecting buckle 141 and the second shoulder strap connecting buckle 142 being installed below the shoulder strap fixing assembly through two connecting webbings sewn on the backboard 100, and each being a rounded rectangular frame structure. The end of the first fixing section is fixedly connected with the first shoulder strap webbing 331, a first shoulder strap ladder buckle 341 being arranged at the joint of the first fixing section and the first shoulder strap webbing 331, the first shoulder strap webbing 331 passing through the first shoulder strap connecting buckle 141 and back through the first shoulder strap ladder buckle 341. By pulling the end of the first shoulder strap webbing 331 that is passed out of the first shoulder strap ladder buckle 341 again, the height of the first shoulder strap body 310 can be adjusted according to the height of the user.

[0051] Similarly, the end of the second fixing section is fixedly connected with the second shoulder strap webbing 332, a second shoulder strap ladder buckle 342 being arranged at the joint of the second fixing section and the second shoulder strap webbing 332, the second shoulder strap webbing 332 passing through the second shoulder strap connecting buckle 142 and back through the second shoulder strap ladder buckle 342. By pulling the end of the second shoulder strap webbing 332 that is passed out of the second shoulder strap ladder buckle 342 again, the height of the second shoulder strap body 320 can be adjusted according to the height of the user.

[0052] Referring to Figure 1 and Figure 4The backboard 100 further comprises a cover sheet 150 connected to the lower end of the backboard body 110, which can fold over the first shoulder strap connecting buckle 141, the second shoulder strap connecting buckle 142, the first shoulder strap webbing 331, the second shoulder strap webbing 332, the first shoulder strap grommet 341 and the second shoulder strap grommet 342. The cover sheet 150 can prevent the first shoulder strap connecting buckle 141, the second shoulder strap connecting buckle 142, the first shoulder strap webbing 331, the second shoulder strap webbing 332, the first shoulder strap grommet 341 and the second shoulder strap grommet 342 from directly abutting against the user's back when the user carries the back frame, thereby avoiding the problem of reduced comfort.

[0053] As preferred, referring to Figure 6 , the first shoulder strap body 310 and the second shoulder strap body 320 are connected with a shoulder strap distance adjustment webbing, which comprises a first adjustment strap, a second adjustment strap, a first chest strap male buckle and a first chest strap female buckle. One end of the first adjustment strap is connected to the first shoulder strap segment, and the other end is threaded through the first chest strap male buckle; one end of the second adjustment strap is connected to the second shoulder strap segment, and the other end is connected to the first chest strap female buckle; the first chest strap male buckle can be inserted into the first chest strap female buckle. By pulling the end of the first adjustment strap threaded through the first chest strap male buckle, the effective length of the first adjustment strap can be adjusted, and thus the distance between the first shoulder strap body 310 and the second shoulder strap body 320 can be adjusted.

[0054] Referring to Figure 1 , Figure 2 and Figures 4-6 , the backboard 100 further comprises a first shoulder strap fixing female buckle 171 and a second shoulder strap fixing female buckle 172, which are arranged in a spaced manner and are both installed on the top of the backboard body 110; the shoulder strap 300 further comprises a first shoulder strap fixing male buckle 351 and a second shoulder strap fixing male buckle 352, which are respectively installed on the first shoulder strap body 310 and the second shoulder strap body 320 through two connecting straps, the first shoulder strap fixing male buckle 351 is inserted into the first shoulder strap fixing female buckle 171, and the second shoulder strap fixing male buckle 352 is inserted into the second shoulder strap fixing female buckle 172. Through the above arrangement, the stability between the back frame and the human body when carrying the back frame can be enhanced.

[0055] Figure 7 Fig. 1 shows a front view of a waist belt according to an embodiment of the present application; Figure 8 Fig. 2 shows a back view of the waist belt according to the embodiment of the present application; Figure 9 Fig. 3 shows a front view of a back frame according to an embodiment of the present application; Figure 10 Fig. 4 shows a back view of the back frame according to the embodiment of the present application. Referring to Figures 7-10The back plate 100 further comprises a first waistband connecting ladder buckle 161 and a second waistband connecting ladder buckle 162, which are respectively installed on the first back plate webbing 121 and the second back plate webbing 122; the waistband 400 further comprises a first waistband webbing 421 and a second waistband webbing 422, which are arranged at intervals and are connected to the front part of the waistband body 410, and are respectively threaded through the first waistband connecting ladder buckle 161 and the second waistband connecting ladder buckle 162. The end of the first waistband webbing 421 threaded through the first waistband connecting ladder buckle 161 and the end of the second waistband webbing 422 threaded through the second waistband connecting ladder buckle 162 are pulled.

[0056] Specifically, the waistband 400 further comprises a third waistband webbing 431 and a fourth waistband webbing 432, which are arranged at intervals and are connected to the back part of the waistband body 410; the shoulder strap 300 further comprises a third shoulder strap ladder buckle 361 and a fourth shoulder strap ladder buckle 362, the third shoulder strap ladder buckle 361 is connected to the end of the first shoulder strap section, and the fourth shoulder strap ladder buckle 362 is connected to the end of the second shoulder strap section, the third waistband webbing 431 is threaded through the third shoulder strap ladder buckle 361, and the fourth waistband webbing 432 is threaded through the fourth shoulder strap ladder buckle 362. Through the above arrangement, reliable connection of the first shoulder strap body 310 and the second shoulder strap body 320 and the waistband body 410 can be achieved.

[0057] By pulling the third waistband webbing 431 threaded through the third shoulder strap ladder buckle 361 and the fourth waistband webbing 432 threaded through the fourth shoulder strap ladder buckle 362 respectively, the effective length of the third waistband webbing 431 and the effective length of the fourth waistband webbing 432 can be adjusted respectively, so as to further adjust the inner diameter of the shoulder accommodating space according to the body type of the user.

[0058] Further specifically, with reference to Figure 5 , Figure 8 and Figure 10 , the waistband 400 further comprises a waistband Velcro 440, which is sewn at the middle position of the waistband body 410; the back plate 100 further comprises a waistband fixing piece 180 and a back plate Velcro 190, the waistband fixing piece 180 is connected to the lower end of the back plate body 110, the back plate Velcro 190 is sewn on the waistband fixing piece 180, the waistband fixing piece 180 is folded to wrap the middle position of the waistband body 410, and the back plate Velcro 190 is attached to the waistband Velcro 440. Through the attachment of the back plate Velcro 190 and the waistband Velcro 440, the connection reliability and structural integrity of the waistband body 410 and the back plate body 110 can be enhanced.

[0059] As a preferred, with reference to Figure 2 , Figure 5 andFigure 8 The waistband 400 further comprises a first waistband reinforcing connecting strap 471 and a second waistband reinforcing connecting strap 472, one end of the first waistband reinforcing connecting strap 471 and one end of the second waistband reinforcing connecting strap 472 are sewn to the rear of the waistband body 410 at intervals. The backboard 100 further comprises a third waistband connecting buckle 163 and a fourth waistband connecting buckle 164, which are respectively connected to the two sides of the waistband fixing sheet 180, the first waistband reinforcing connecting strap 471 is threaded through the third waistband connecting buckle 163, the second waistband reinforcing connecting strap 472 is threaded through the fourth waistband connecting buckle 164, by pulling the end of the first waistband reinforcing connecting strap 471 out of the third waistband connecting buckle 163, at the same time, pulling the end of the second waistband reinforcing connecting strap 472 out of the fourth waistband connecting buckle 164 can further strengthen the connection between the waistband body 410 and the backboard 100.

[0060] More specifically, referring to Figures 7-10 The waistband 400 provided by the embodiment further comprises a first waistband adjusting strap 451, a second waistband adjusting strap 452, a waistband male buckle 461 and a waistband female buckle 462, the first waistband adjusting strap 451 and the second waistband adjusting strap 452 are respectively adjustably connected to the two ends of the waistband body 410, the waistband male buckle 461 is connected to the first waistband adjusting strap 451, the waistband female buckle 462 is connected to the second waistband adjusting strap 452, the waistband male buckle 461 can be buckled to the waistband female buckle 462 to form a waist accommodating space. The two ends of the waistband body 410 are respectively connected with one adjusting connecting buckle, the first waistband adjusting strap 451 is threaded through one adjusting connecting buckle, and the second waistband adjusting strap 452 is threaded through the other adjusting connecting buckle. By pulling the end of the first waistband adjusting strap 451 out of the corresponding adjusting connecting buckle, the effective length of the first waistband adjusting strap 451 can be adjusted; similarly, by pulling the end of the second waistband adjusting strap 452 out of the corresponding adjusting connecting buckle, the effective length of the second waistband adjusting strap 452 can be adjusted. Through the above arrangement, the adjustment of the inner diameter of the waist accommodating space can be realized, thereby facilitating the waist fixation of users of different body types.

[0061] As a preferred, a plurality of transverse straps are arranged on the backboard body 110, and a plurality of longitudinal straps can be arranged at the connection position of the waistband body 410 and the backboard body 110, the transverse straps and the longitudinal straps can bind articles. And the transverse straps and the longitudinal straps can fix special bags, so that the back frame has the function of a backpack.

[0062] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A backrest, characterized in that The back plate (100) comprises a back plate body (110) abutting against the back of the human body. The support strip (200) is capable of abutting against the back of the human body and is installed on one side of the back plate body (110) abutting against the back of the human body. The shoulder strap (300) comprises a first shoulder strap body (310) and a second shoulder strap body (320), the first shoulder strap body (310) and the second shoulder strap body (320) are installed on the side of the back plate body (110) away from the support strip (200) with adjustable height and are bent towards the direction of the support strip (200) to form a shoulder accommodating space, and the inner diameter of the shoulder accommodating space is adjustable. The waist strap (400) comprises a waist strap body (410) installed on the back plate body (110), a part of the waist strap (400) is connected to the shoulder strap (300), and the waist strap body (410) forms a waist accommodating space by looping, and the inner diameter of the waist accommodating space is adjustable. The back plate (100) further comprises a first back plate braid (121) and a second back plate braid (122), the first back plate braid (121) and the second back plate braid (122) are arranged in the width direction of the back plate body (110), and the support strip (200) is two, and the two support strips (200) are respectively arranged in the first back plate braid (121) and the second back plate braid (122). The back plate (100) further comprises a first shoulder strap fixing assembly and a second shoulder strap fixing assembly, the first shoulder strap fixing assembly comprises a plurality of first shoulder strap fixing strips (131) arranged in the height direction of the back plate body (110), the first shoulder strap fixing strips (131) are connected to the side of the back plate body (110) away from the first back plate braid (121), the first shoulder strap body (310) is divided into a first fixed segment and a first shoulder lap segment, and the first fixed segment is arranged between the first shoulder strap fixing strip (131) and the back plate body (110). The second shoulder strap fixing assembly comprises a plurality of second shoulder strap fixing strips (132) arranged in the height direction of the back plate body (110), the second shoulder strap fixing strips (132) are connected to the side of the back plate body (110) away from the second back plate braid (122), the second shoulder strap body (320) is divided into a second fixed segment and a second shoulder lap segment, and the second fixed segment is arranged between the second shoulder strap fixing strip (132) and the back plate body (110). ​ The back plate (100) further comprises a first shoulder strap connecting buckle (141) and a second shoulder strap connecting buckle (142) which are arranged at intervals and are installed below the shoulder strap fixing assembly, the end of the first fixing section is fixedly connected with a first shoulder strap webbing (331), a first shoulder strap ladder buckle (341) is arranged at the joint of the first shoulder strap webbing (331) and the first fixing section, the first shoulder strap webbing (331) passes through the first shoulder strap connecting buckle (141) and is threaded back to the first shoulder strap ladder buckle (341); The end of the second fixing section is fixedly connected with a second shoulder strap webbing (332), a second shoulder strap ladder buckle (342) is arranged at the joint of the second shoulder strap webbing (332) and the second fixing section, the second shoulder strap webbing (332) passes through the second shoulder strap connecting buckle (142) and is threaded back to the second shoulder strap ladder buckle (342).

2. The backrest of claim 1, wherein The back plate (100) further comprises a cover sheet (150) which is connected to the lower end of the back plate body (110) and can be folded to cover the first shoulder strap connecting buckle (141), the second shoulder strap connecting buckle (142), the first shoulder strap webbing (331), the second shoulder strap webbing (332), the first shoulder strap ladder buckle (341) and the second shoulder strap ladder buckle (342).

3. The backrest of claim 1, wherein The back plate (100) further comprises a first waist strap connecting ladder buckle (161) and a second waist strap connecting ladder buckle (162) which are respectively installed on the first back plate webbing (121) and the second back plate webbing (122); The waist strap (400) further comprises a first waist strap webbing (421) and a second waist strap webbing (422) which are arranged at intervals and are connected to the waist strap body (410) and are threaded through the first waist strap connecting ladder buckle (161) and the second waist strap connecting ladder buckle (162) respectively.

4. The backrest of claim 1, wherein The waist strap (400) further comprises a third waist strap webbing (431) and a fourth waist strap webbing (432) which are arranged at intervals and are connected to the waist strap body (410); The shoulder strap (300) further comprises a third shoulder strap ladder buckle (361) and a fourth shoulder strap ladder buckle (362), the third shoulder strap ladder buckle (361) is connected to the end of the first shoulder connecting section, the fourth shoulder strap ladder buckle (362) is connected to the end of the second shoulder connecting section, the third waist strap webbing (431) is threaded through the third shoulder strap ladder buckle (361), and the fourth waist strap webbing (432) is threaded through the fourth shoulder strap ladder buckle (362).

5. The backrest of claim 1, wherein The back plate (100) further comprises a first shoulder strap fixing female buckle (171) and a second shoulder strap fixing female buckle (172), which are arranged at intervals and are both mounted on the top of the back plate body (110); The shoulder strap (300) further comprises a first shoulder strap fixing male buckle (351) and a second shoulder strap fixing male buckle (352), which are respectively mounted on the first shoulder strap body (310) and the second shoulder strap body (320), the first shoulder strap fixing male buckle (351) is inserted into the first shoulder strap fixing female buckle (171), and the second shoulder strap fixing male buckle (352) is inserted into the second shoulder strap fixing female buckle (172).

6. The backrest of claim 1, wherein The waist strap (400) further comprises a waist strap Velcro (440), which is sewn at the middle position of the waist strap body (410); The back plate (100) further comprises a waist strap fixing sheet (180) and a back plate Velcro (190), the waist strap fixing sheet (180) is connected to the lower end of the back plate body (110), the back plate Velcro (190) is sewn on the waist strap fixing sheet (180), the waist strap fixing sheet (180) is folded to wrap the waist strap body (410), and the back plate Velcro (190) is attached to the waist strap Velcro (440).

7. The backrest according to any of claims 1-6, characterized in that The waist strap (400) further comprises a first waist strap adjusting belt (451), a second waist strap adjusting belt (452), a waist strap male buckle (461) and a waist strap female buckle (462), the first waist strap adjusting belt (451) and the second waist strap adjusting belt (452) are respectively connected to the two ends of the waist strap body (410) in a length-adjustable manner, the waist strap male buckle (461) is connected to the first waist strap adjusting belt (451), the waist strap female buckle (462) is connected to the second waist strap adjusting belt (452), and the waist strap male buckle (461) can be buckled to the waist strap female buckle (462).

Images