Backpack

Abstract

The knapsack comprises a knapsack body, a frame, a back cushion, a waistband assembly and at least two straps, and the knapsack body is located on one side of a first surface and connected with the frame; the back cushion is located on one side of the second surface and connected with the frame. The two straps are arranged on the side, away from the frame, of the back cushion side by side, one ends of the straps are connected with the upper end of the back cushion, and the other ends of the straps are connected with the lower end of the back cushion. The waistband assembly comprises a first waistband and a second waistband which are symmetrically arranged on the two sides of the lower end of the back cushion, the end, close to the back cushion, of the first waistband is connected with the back cushion, the end, close to the back cushion, of the second waistband is connected with the back cushion, and the end, away from the back cushion, of the first waistband is detachably connected with the end, away from the back cushion, of the second waistband. The frame can provide supporting force for the back face of the backpack body so as to ensure that the backpack body is relatively straight, objects in the backpack body can be conveniently arranged, the positions of the objects in the backpack are not prone to being changed due to stooping, and therefore stress is prevented from being greatly changed.

Description

Technical Field

[0001] The present invention relates to the technical field of backpacks, in particular to a 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 the back of a person. Although backpacks have been improved in terms of structure and materials, their main structural system is still the shoulder straps and luggage bag. Since it is difficult for humans to carry heavy objects for a long time with their hands alone, backpacks are often the preferred tool for carrying or transporting heavy objects. Depending on the application, the use of backpacks emphasizes comfort and lightness. When carrying weight, existing backpack designs used in different scenarios will vary. For example, they may use more breathable materials, add a support frame on the inside to transfer the weight to the hips, or add padding to the shoulder straps to reduce shoulder pressure and come with a waist belt.

[0003] Current backpacks, when carried, adhere tightly to the user's body. When loaded with numerous items, they create a significant load, causing the backpack to sink, increasing the burden on the shoulders and putting strain on the user. Furthermore, the user's body often tilts backward, easily causing imbalance when climbing, and potentially leading to a fall. Summary of the Invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a backpack.

[0005] The present application provides a backpack, comprising: The backpack body defines a storage space for storing items; a frame having a first surface and a second surface opposite to each other in a first direction, the backpack body being located on one side of the first surface and connected to the frame, and a side of the backpack body close to the frame being in contact with the first surface; a back pad located on one side of the second surface and connected to the frame; At least two shoulder straps are arranged side by side on a side of the back pad away from the frame, one end of the shoulder strap is connected to the upper end of the back pad, and the other end of the shoulder strap is connected to the lower end of the back pad; The waist belt assembly includes a first waist belt and a second waist belt, wherein the first waist belt and the second waist belt are symmetrically arranged on both sides of the lower end of the back pad, the end of the first waist belt close to the back pad is connected to the back pad, the end of the second waist belt close to the back pad is connected to the back pad, and the end of the first waist belt away from the back pad is detachably connected to the end of the second waist belt away from the back pad.

[0006] In a possible implementation, the backpack has a second direction, and the second direction intersects with the first direction; A plurality of first connecting female buckles are provided at intervals along the second direction on one side of the first surface of the frame, and a plurality of first connecting sub-buckles are provided at intervals along the second direction on the other side of the first surface of the frame. The first connecting sub-buckles are arranged in a one-to-one correspondence with the first connecting female buckles. A second connecting female buckle and a second connecting sub-buckle are respectively provided on both sides of the surface of the backpack body facing the frame. The second connecting female buckle is used to adapt to the first connecting sub-buckle, and the second connecting sub-buckle is used to adapt to the first connecting female buckle, so that the backpack body can be detachably connected to the frame.

[0007] In a possible implementation, the backpack further includes a soft pad, which is provided on surfaces of the first waist belt and the second waist belt facing away from the back pad.

[0008] In one possible embodiment, the end of the first waist belt away from the back pad is connected to a first connecting strip, and the end of the first connecting strip is provided with a plug connector. The end of the second waist belt away from the back pad is connected to a second connecting strip, and the end of the second connecting strip is provided with a plug buckle. The plug buckle is plugged into the plug connector to allow the first waist belt and the second waist belt to be detachably connected.

[0009] In a possible embodiment, the plug connector includes a plug connector body and two elastic arms, the two elastic arms are symmetrically arranged on the plug connector body, and an abutment portion is formed at one end of the elastic arm away from the first connecting bar; The interior of the plug-in buckle defines an insertion cavity, and extension openings connected to the insertion cavity are symmetrically opened on both sides of the plug-in buckle; wherein, after the elastic arm is inserted into the insertion cavity, the elastic arm at least partially extends from the extension opening, and the abutment portion abuts against one end of the extension opening.

[0010] In a possible embodiment, a guide bar is further provided on the plug connector body, and the guide bar is located between the two elastic arms. Two limit bars are provided in the plug-in cavity at intervals, and a guide position connected to the plug-in cavity is formed between the two limit bars.

[0011] In a possible embodiment, the backpack further includes a first auxiliary strap and a second auxiliary strap, one end of the first auxiliary strap is connected to one of the shoulder straps, and the other end of the first auxiliary strap is provided with a locking head, one end of the second auxiliary strap is connected to the other shoulder strap, and the other end of the second auxiliary strap is provided with a locking buckle, and the locking buckle is plugged into the locking head.

[0012] In a possible implementation, the first auxiliary belt is connected to the middle portion of one of the shoulder straps, and the second auxiliary belt is connected to the middle portion of the other shoulder strap.

[0013] In a possible implementation, the backpack further includes an elastic strip, one end of which is connected to the upper end of the back pad, and the other end of which is connected to the frame.

[0014] In a possible implementation manner, the first waist belt and the second waist belt are arc-shaped.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: The frame effectively maintains the shape of the backpack body and, in conjunction with the back pad, shoulder straps, and first and second waist belts, transfers some of the pressure from the shoulders to the back and waist, thereby reducing the burden on the user. At the same time, the frame provides support for the back of the backpack body, ensuring it is relatively flat, making it easier to arrange items within the backpack body and less likely to change the position of items in the backpack due to bending over, thereby avoiding significant changes in force. Furthermore, the two shoulder straps conform to the shoulders of the human body, and the first and second waist belts are connected to keep the pump horizontal and positioned across the waist, further ensuring that the back pad fits snugly against the back, reducing the impact of the backpack body's shaking on the back, and preventing backward tilting. This ensures that the body is less likely to lose balance when climbing to heights, preventing the risk of falling backwards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a backpack according to an embodiment of the present invention; Figure 2 This is a schematic structural diagram of a backpack without the backpack body in an embodiment of the present invention; Figure 3 Schematic diagram of a plug buckle and a plug connector in a backpack according to an embodiment of the present invention; Figure 4 The figure is a schematic structural diagram of a plug-in buckle in a backpack according to an embodiment of the present invention.

[0017] Figure Number: 10. Backpack body; 20. Frame; 30. Back pad; 40. Shoulder strap; 50. Second waist belt; 60. Second connecting strip; 70. Connecting buckle; 70a. Connecting cavity; 70b. Extension port; 70c. Limiting strip; 70d. Guide position; 80. Second auxiliary belt; 90. Locking buckle; 100. Elastic strip; 110. First connecting female buckle; 120. First connecting sub-buckle; 130. First waist belt; 140. First connecting strip; 150. Connector; 151. Connector body; 152. Elastic arm; 152a. Abutment portion; 153. Guide strip. DETAILED DESCRIPTION

[0018] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0019] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0020] In the following description, specific details such as particular system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0021] like Figures 1 to 4As shown, a backpack according to an embodiment of the present invention includes a backpack body 10, a frame 20, a back pad 30, a waist belt assembly, and at least two shoulder straps 40. The backpack body 10 defines a storage space for storing items. The frame 20 has a first surface and a second surface that are opposite in a first direction. The backpack body 10 is located on one side of the first surface and is connected to the frame 20, and the side of the backpack body 10 close to the frame 20 abuts against the first surface. The back pad 30 is located on one side of the second surface and is connected to the frame 20. The two shoulder straps 40 are arranged side by side on the side of the back pad 30 away from the frame 20. One end of the shoulder strap 40 is connected to the upper end of the back pad 30, and the other end of the shoulder strap 40 is connected to the lower end of the back pad 30. The waist belt assembly includes a first waist belt 130 and a second waist belt 50. The first waist belt 130 and the second waist belt 50 are symmetrically arranged on both sides of the lower end of the back pad 30. The end of the first waist belt 130 close to the back pad 30 is connected to the back pad 30, and the end of the second waist belt 50 close to the back pad 30 is connected to the back pad 30. The end of the first waist belt 130 away from the back pad 30 and the end of the second waist belt 50 away from the back pad 30 are detachably connected.

[0022] The backpack of this embodiment divides the two surfaces of the frame 20 in the first direction into a first surface and a second surface, and connects the backpack body 10 to the frame 20 so that the backpack body 10 is arranged on one side of the first surface and abuts against the first surface, and then uses two straps 40 to connect to the shoulders of the human body, and then cooperates with the first waist belt 130 and the second waist belt 50 to be tied to the waist of the human body, thereby realizing the backpack body 10 being carried on the back; when it is necessary to remove the backpack, the backpack body 10 can be directly removed from the frame 20, or the first waist belt 130 and the second waist belt 50 can be disassembled and the two straps 40 can be removed from the shoulders of the human body to remove the entire backpack.

[0023] In other words, the backpack of the present application utilizes the frame 20 to effectively maintain the shape of the backpack body 10. Furthermore, in conjunction with the back pad 30, shoulder straps 40, first waist belt 130, and second waist belt 50, the frame 20 transfers some of the pressure from the shoulders to the back and waist, thereby reducing the burden on the user. Simultaneously, the frame 20 provides support to the back of the backpack body 10, ensuring it is relatively straight, facilitating the arrangement of items within the backpack body 10 and preventing the position of items in the backpack from being displaced by bending over, thereby avoiding significant changes in force. Furthermore, the two shoulder straps 40 conform to the shoulders of the user and are connected by the first waist belt 130 and the second waist belt 50 to maintain a horizontal position and straddle the waist, further ensuring that the back pad 30 fits snugly against the user's back, reducing the impact of the backpack body 10's shaking on the back and preventing backward tilting. This ensures that the user is less likely to lose balance when climbing to heights, preventing the risk of falling backwards.

[0024] For example, the backpack body 10 can be made of a flexible and waterproof material, such as Cordura plastic sheeting, and the bottom or user area of the backpack body 10 can be made of or reinforced with a rigid or flexible hard material. In addition, the backpack body 10 can be square, oval, or any other shape, which is not limited to this.

[0025] Here, it should be noted that the above-mentioned "first direction" is fictitious for the purpose of describing the positional relationship between components. Specifically in this embodiment, taking the frame 20 as a reference, the first direction specifically refers to the width direction of the frame 20 (refer to Figure 1 in the X direction).

[0026] In a possible embodiment, the backpack has a second direction, which intersects with the first direction. It should be noted that the above-mentioned "second direction" is fictitious for the purpose of describing the positional relationship between components. Specifically in this embodiment, taking the frame 20 as a reference, the second direction specifically refers to the height direction of the frame 20 (refer to Figure 1 Y direction in ).

[0027] Specifically, a plurality of first connecting female buckles 110 are provided at intervals along the second direction on one side of the first surface of the frame 20, and a plurality of first connecting sub-buckles 120 are provided at intervals along the second direction on the other side of the width of the first surface of the frame 20. The first connecting sub-buckles 120 are provided in a one-to-one correspondence with the first connecting female buckles 110. A second connecting female buckle and a second connecting sub-buckle are provided on both sides of the surface of the backpack body 10 facing the frame 20, respectively. The second connecting female buckle is used to match with the first connecting sub-buckle 120, and the second connecting sub-buckle is used to match with the first connecting female buckle 110, so that the backpack body 10 is detachably connected to the frame 20. In other words, when connecting the backpack body 10 to the frame 20, the second connecting female buckle on the backpack body 10 is matched and connected with the first connecting sub-buckle 120, and the second connecting sub-buckle on the backpack body 10 is matched and connected with the first connecting female buckle 110, thereby achieving a detachable connection of the backpack body 10 to the frame 20. If a different backpack body 10 needs to be replaced, the backpack body 10 can be replaced by simply disconnecting the first connecting buckle 120 from the second connecting buckle and the first connecting buckle 110 from the second connecting buckle. The structure is simple and easy to assemble and disassemble.

[0028] In one possible embodiment, the backpack further includes a soft pad, which is provided on the surfaces of the first waist belt 130 and the second waist belt 50 facing away from the back pad 30. Thus, after the first waist belt 130 and the second waist belt 50 are tied around the waist of a person, the soft pad comes into contact with the waist of the person, thereby providing a certain elastic cushioning effect, which helps to protect the waist of the person.

[0029] In one possible embodiment, the end of the first waist belt 130 away from the back pad 30 is connected to a first connecting strip 140, and a plug connector 150 is provided at the end of the first connecting strip 140. The end of the second waist belt 50 away from the back pad 30 is connected to a second connecting strip 60, and a plug buckle 70 is provided at the end of the second connecting strip 60. The plug buckle 70 plugs into the plug connector 150 to removably connect the first waist belt 130 and the second waist belt 50. In this way, when carrying the backpack, the first waist belt 130 and the second waist belt 50 are first wrapped around the waist of the person. At this time, the plug buckle 70 and the plug connector 150 are moved closer to each other until the plug connector 150 is inserted into the plug buckle 70, connecting the first waist belt 130 and the second waist belt 50. This allows the back pad 30 to fit tightly against the person's back, reducing the impact on the back caused by the shaking of the backpack body 10 and preventing backward tilting.

[0030] In one possible embodiment, the plug connector 150 includes a plug connector body 151 and two elastic arms 152. The two elastic arms 152 are symmetrically arranged on the plug connector body 151, and an abutment portion 152a is formed on one end of the elastic arms 152 away from the first connecting bar 140. The plug buckle 70 defines an insertion cavity 70a within the interior, and symmetrically defines two sides of the plug buckle 70, each of which is connected to the insertion cavity 70a. After the elastic arms 152 are inserted into the insertion cavity 70a, the elastic arms 152 at least partially extend from the extension opening 70b, and the abutment portion 152a abuts one end of the extension opening 70b. That is to say, after the plug connector body 151 is inserted into the plug cavity 70a, the elastic arm 152 extends from the extension port 70b due to its own elastic force. At this time, the abutting portion 152a of the elastic arm 152 will abut against one end of the extension port 70b, thereby realizing a detachable connection between the first waist belt 130 and the second waist belt 50. The structure is simple and the disassembly and assembly are convenient.

[0031] In one possible embodiment, the plug body 151 is further provided with a guide bar 153, which is located between the two elastic arms 152. Two limiting bars 70c are spaced apart within the plug cavity 70a, and a guide position 70d is formed between the two limiting bars 70c, which communicates with the plug cavity 70a. Thus, the two limiting bars 70c within the plug cavity 70a form the guide position 70d. When the plug 150 is plugged into the plug buckle 70, the guide bar 153 is inserted into the guide position 70d, thereby ensuring precise plugging of the plug body 151 and the plug buckle 70.

[0032] In a possible embodiment, the backpack also includes a first auxiliary strap and a second auxiliary strap 80, one end of the first auxiliary strap is connected to a shoulder strap 40, and the other end of the first auxiliary strap is provided with a locking head, one end of the second auxiliary strap 80 is connected to another shoulder strap 40, and the other end of the second auxiliary strap 80 is provided with a locking buckle 90, which is plugged into the locking head.

[0033] In a possible implementation, the first auxiliary belt is connected to the middle portion of one shoulder belt 40 , and the second auxiliary belt 80 is connected to the middle portion of the other shoulder belt 40 .

[0034] In a possible implementation, the backpack further includes an elastic strip 100 , one end of the elastic strip 100 is connected to the upper end of the back pad 30 , and the other end of the elastic strip 100 is connected to the frame 20 .

[0035] In order for the user to better fit the waist of the human body and provide a certain elastic buffer when wearing the first waist belt 130 and the second waist belt 50, in this embodiment, the first waist belt 130 and the second waist belt 50 are arc-shaped.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A backpack, characterized in that: include: The backpack body defines a storage space for storing items; a frame having a first surface and a second surface opposite to each other in a first direction, the backpack body being located on one side of the first surface and connected to the frame, and a side of the backpack body close to the frame being in contact with the first surface; a back pad located on one side of the second surface and connected to the frame; At least two shoulder straps are arranged side by side on a side of the back pad away from the frame, one end of the shoulder strap is connected to the upper end of the back pad, and the other end of the shoulder strap is connected to the lower end of the back pad; The waist belt assembly includes a first waist belt and a second waist belt, wherein the first waist belt and the second waist belt are symmetrically arranged on both sides of the lower end of the back pad, the end of the first waist belt close to the back pad is connected to the back pad, the end of the second waist belt close to the back pad is connected to the back pad, and the end of the first waist belt away from the back pad is detachably connected to the end of the second waist belt away from the back pad.

2. The backpack according to claim 1, characterized in that The backpack has a second direction, the second direction intersecting the first direction; A plurality of first connecting female buckles are provided at intervals along the second direction on one side of the first surface of the frame, and a plurality of first connecting sub-buckles are provided at intervals along the second direction on the other side of the first surface of the frame. The first connecting sub-buckles are arranged in a one-to-one correspondence with the first connecting female buckles. A second connecting female buckle and a second connecting sub-buckle are respectively provided on both sides of the surface of the backpack body facing the frame. The second connecting female buckle is used to adapt to the first connecting sub-buckle, and the second connecting sub-buckle is used to adapt to the first connecting female buckle, so that the backpack body can be detachably connected to the frame.

3. The backpack according to claim 1, characterized in that The backpack further includes a soft pad, which is provided on surfaces of the first waist belt and the second waist belt facing away from the back pad.

4. The backpack according to claim 1, wherein: The end of the first waist belt away from the back pad is connected to a first connecting strip, and the end of the first connecting strip is provided with a plug connector. The end of the second waist belt away from the back pad is connected to a second connecting strip, and the end of the second connecting strip is provided with a plug buckle. The plug buckle is plugged into the plug connector to make the first waist belt and the second waist belt detachably connected.

5. The backpack according to claim 4, characterized in that The plug connector includes a plug connector body and two elastic arms, the two elastic arms are symmetrically arranged on the plug connector body, and an abutment portion is formed at one end of the elastic arm away from the first connecting bar; The interior of the plug-in buckle defines an insertion cavity, and extension openings connected to the insertion cavity are symmetrically opened on both sides of the plug-in buckle; wherein, after the elastic arm is inserted into the insertion cavity, the elastic arm at least partially extends from the extension opening, and the abutment portion abuts against one end of the extension opening.

6. The backpack according to claim 5, characterized in that The plug connector body is further provided with a guide bar, which is located between the two elastic arms. Two limit bars are spaced apart in the plug-in cavity, and a guide position communicating with the plug-in cavity is formed between the two limit bars.

7. The backpack according to claim 1, wherein: The backpack also includes a first auxiliary strap and a second auxiliary strap, one end of the first auxiliary strap is connected to one of the shoulder straps, and the other end of the first auxiliary strap is provided with a locking head, one end of the second auxiliary strap is connected to the other shoulder strap, and the other end of the second auxiliary strap is provided with a locking buckle, and the locking buckle is plugged into the locking head.

8. The backpack according to claim 7, characterized in that The first auxiliary belt is connected to the middle part of one of the shoulder straps, and the second auxiliary belt is connected to the middle part of the other shoulder strap.

9. The backpack according to claim 1, wherein: The backpack further comprises an elastic strip, one end of which is connected to the upper end of the back pad, and the other end of which is connected to the frame.

10. The backpack according to claim 1, wherein: The first waistband and the second waistband are arc-shaped.

Images