Double-zipper schoolbag with rear opening

Abstract

The double-zipper schoolbag with the rear opening comprises straps and a backpack body, the backpack body comprises a main piece, two zipper assemblies and two side pieces, the number of the side pieces and the number of the zipper assemblies are both two, and each zipper assembly comprises a first zipper belt and a second zipper belt which are matched in a zippering mode; the left side and the right side of the head of the main piece are integrally connected with side pieces respectively. First zipper belts are arranged on the edges of the side pieces. In the assembled state, the trunk piece is detachably connected end to end in the length direction to form a containing cavity with openings in the left side and the right side, the shapes of the side pieces are matched with the shapes of the openings one by one, second zipper belts are arranged on the edges of the openings, and the side pieces achieve opening and closing of the openings through zipper assemblies; the straps are fixed on the outer surface of the head of the trunk piece. The main piece and the side pieces are integrally connected, so that a consumer can conveniently fold in the using process, cleaning is easy, and meanwhile the product transportation and storage cost is saved; the two zipper assemblies are arranged on the two sides respectively, so that the backpack body is stressed more evenly in the pulling and closing process, and deformation is not prone to occurring.

Description

Technical Field

[0001] The utility model patent relates to the technical field of backpacks, in particular to a school bag with a double zipper and a rear opening. Background Art

[0002] School bags or backpacks are essential for children on their way to and from school. According to consumer feedback, existing school bags have the following problems: the inner surface of the backpack is dirty and difficult to clean, and it is easy to have cleaning dead corners; when going out or exercising, because children often jump around, the items in the bag are easy to fall out.

[0003] Although the existing one-piece backpacks on the market can be unfolded or disassembled into pieces for easy cleaning, most of these products are designed with a single zipper and double sliders. Children need to use the double sliders to open the zipper to take out items from the bag. The movement trajectory of the sliders is mostly U-shaped, and the movement trajectory is long, which is inconvenient when taking items out. In addition, due to the single zipper design, children are not aware of the uniform force on both sides, and the bag body or flap is prone to deformation after long-term use. Utility Model Content

[0004] The utility model aims to solve the existing technical problems and proposes a school bag with double zippers and rear openings.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-zipper rear opening school bag, including a shoulder strap and a backpack body, the backpack body including a main body, a zipper assembly and side pieces, the number of side pieces and zipper assemblies are both two, the zipper assembly includes a first zipper tape and a second zipper tape that are pulled together and matched; the left and right sides of the main body head are respectively integrally connected with side pieces, and the edges of the side pieces are provided with a first zipper tape; in the assembled state, the main body is detachably connected at the head and tail along the length direction to form a receiving cavity with open openings on both sides, the shape of the side pieces matches the shape of the open openings one by one, the edge of the open openings is provided with a second zipper tape, and the side pieces realize the pulling and closing of the open openings through the zipper assembly; the shoulder straps are fixed to the outer surface of the main body head, and in the assembled state, the tail of the main body is arranged toward the shoulder straps.

[0006] Preferably, the tail of the trunk piece is also connected to a rear cover piece for covering the connection between the head and the tail; in the assembled state, the rear cover piece overlaps the outer surface of the head of the trunk piece, and the rear cover piece is detachably connected to the outer surface of the head of the trunk piece through a connecting piece.

[0007] Preferably, the main piece in the unfolded state includes a back piece, a bottom piece, a front piece and an upper piece which are connected in sequence along the length direction and are arranged with equal width. The back piece is located at the head of the main piece, and the left and right sides of the back piece are respectively integrally connected with side pieces, and the side pieces are arranged with the same length as the back piece; the lower edge of the upper piece is integrally connected with the rear cover piece.

[0008] Preferably, the upper stop of the first zipper tape is located at one end of the upper edge of the side panel near the main panel, and the lower stop of the first zipper tape is located at one end of the lower edge of the side panel near the main panel; the upper stop of the second zipper tape is located at the junction of the upper panel and the rear cover panel, and the lower stop of the second zipper tape is located at the junction of the bottom panel and the back panel.

[0009] Preferably, the first zipper tape is connected to the second zipper tape via a self-locking slider.

[0010] Preferably, the connecting piece includes a backpack male buckle and a backpack female buckle that are matched with each other, the backpack male buckle is connected to the lower edge of the rear cover piece, and the backpack female buckle is provided on the outer surface of the head of the trunk piece opposite to the backpack male buckle.

[0011] Preferably, the side panels are rectangular, and the corners of the side panels are rounded.

[0012] Preferably, crease areas for folding and shaping are reserved between the back sheet and the bottom sheet, between the bottom sheet and the front sheet, between the front sheet and the upper sheet, between the upper sheet and the rear cover sheet, and between the back sheet and the side sheets.

[0013] The beneficial effects of the utility model are as follows: the main piece and the side pieces are integrally connected, which is convenient for consumers to fold and clean during use, while saving product transportation and storage costs; the two zipper components are arranged on both sides, so that the backpack body is subjected to more uniform force during the pulling and closing process and is not easily deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model in an assembled state;

[0015] Figure 2 for Figure 1 A magnified image of point A;

[0016] Figure 3 This is a schematic diagram of the backpack body in the unfolded state of Example 1 of the utility model (inner surface);

[0017] Figure 4 This is a schematic diagram of the use state of Example 1 of the utility model (closed state);

[0018] Figure 5 This is a schematic diagram of the use state of Example 1 of the utility model (open state). DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Combined with Examples 1-2 and Figure 1-5, a double-zipper rear opening backpack includes a shoulder strap 6 and a backpack body, the backpack body includes a main piece, a zipper assembly 2 and a side piece 3, the number of the side piece 3 and the zipper assembly 2 are both two, the zipper assembly 2 includes a first zipper tape 21 and a second zipper tape 22 that are pulled together and matched; the left and right sides of the main piece head 10 are respectively connected with the side pieces 3, and the edges of the side pieces 3 are provided with a first zipper tape 21; in the assembled state, the main piece is detachably connected at the head and tail along the length direction to form a receiving cavity with open openings on both sides, the shape of the side piece 3 matches the shape of the open opening one by one, and the edge of the open opening is provided with a second zipper tape 22, and the side piece 3 is opened and closed by the zipper assembly 2; the shoulder strap 6 is fixed to the outer surface 101 of the main piece head, and in the assembled state, the tail 15 of the main piece is arranged toward the shoulder strap 6, and the tail of the main piece moves in the direction away from the shoulder strap to open the receiving cavity for access operation.

[0021] The tail portion 15 of the main piece is also connected to a rear cover piece 16 for covering the connection between the head and the tail. In the assembled state, the rear cover piece 16 overlaps the outer surface 101 of the head portion of the main piece. The rear cover piece 16 is detachably connected to the outer surface 101 of the head portion of the main piece through the connecting piece 4 to prevent the items in the storage cavity from vibrating out. At the same time, it is convenient to pull down the zipper assembly together when taking out the items, so as to open the storage cavity from the back to the front and from the top to the bottom.

[0022] The connecting member 4 includes a backpack buckle and a backpack buckle that are matched and buckled together. The backpack buckle is connected to the lower edge of the rear cover sheet 16, and the backpack buckle is provided at the outer surface 101 of the head of the main sheet opposite to the backpack buckle. The backpack buckle and the backpack buckle can be selected from commonly used backpack buckles, hook buckles or snaps, and Velcro can also be used as an alternative.

[0023] Furthermore, there are two connecting parts, and two backpack buckles are fixed symmetrically on the lower edge of the rear cover piece, and the backpack buckle corresponds to the backpack buckle one by one.

[0024] Example 1

[0025] The main body in the unfolded state includes a back piece 11, a bottom piece 12, a front piece 13 and a top piece 14 which are connected in sequence along the length direction and are arranged with equal width. The back piece 11 is located at the head 10 of the main body. The left and right sides of the back piece 11 are respectively connected with side pieces 13 in one piece, and the side pieces 13 are arranged with the same length as the back piece 11. The lower edge of the top piece 14 is connected with a rear cover piece 16 in one piece. In the assembled state, the main body is detachably connected at the head and tail along the length direction, and a hexahedral receiving cavity is formed by the cooperation of the side pieces and the zipper assembly. The front piece and the back piece are arranged with equal length, and the top piece and the bottom piece are arranged with equal length.

[0026] The upper stop of the first zipper tape 21 is located at one end of the upper edge of the side panel 3 near the main panel, and the lower stop of the first zipper tape 21 is located at one end of the lower edge of the side panel 3 near the main panel; the upper stop of the second zipper tape 22 is located at the junction of the upper panel 14 and the rear cover panel 16, and the lower stop of the second zipper tape 22 is located at the junction of the bottom panel 12 and the back panel 11. In the assembled state, the zipper lock is pulled upward from the bottom of the receiving cavity to the top of the receiving cavity to complete the closing operation of the open mouth; the zipper lock is pulled down from the top to the bottom, and the top surface of the backpack body is connected to the outside world as a take-out port; the zipper lock is further moved downward, and the take-out port can be expanded to the front surface of the backpack body where the front panel is located.

[0027] The first zipper tape 21 is connected to the second zipper tape 22 via a self-locking slider 23. The slider can be locked when not in use to prevent the slider from slipping due to force, thereby enhancing the stability of the backpack's closing function.

[0028] The side panels 3 are rectangular, and the corners of the side panels 3 are all rounded.

[0029] Crease areas for folding and shaping are reserved between the back sheet 11 and the bottom sheet 12, between the bottom sheet 12 and the front sheet 13, between the front sheet 13 and the upper sheet 14, between the upper sheet 14 and the rear cover sheet 16, and between the back sheet 11 and the side sheets 3, so as to facilitate quick folding.

[0030] Furthermore, side pockets 5 are fixed to the outer surface of the side panels 3 , and a front pocket is fixed to the outer surface of the front panel 13 .

[0031] When going out, the main piece's head and tail connection provides a triple stable closure function through the connector, back cover and zipper assembly to prevent objects in the storage cavity from falling out; when using it indoors, the connector can be adjusted to the normally open state, and you only need to release the lock of the self-locking zipper, then lift the back cover and apply tension to the two zipper assemblies to make them slide open, making it convenient to access items in the bag; after taking out, just close the open mouth with the self-locking slider.

[0032] Furthermore, snap button components and snap button mother components are respectively provided on both sides of the zipper assembly, and in the assembled state, the snap button components and the snap button mother components are snapped together to form a non-slip buckle for the downward limiting zipper lock, and the non-slip buckle is arranged perpendicular to the first zipper tape to prevent the zipper from being excessively opened and closed during daily retrieval, thereby causing the backpack body in the form of a storage cavity to disintegrate. The snap button components and the snap button mother components can be released from the snapping state when the main body piece is unfolded.

[0033] Example 2

[0034] The main piece in the unfolded state includes a back piece, a bottom piece, a front piece and an upper piece which are connected in sequence, the back piece is located at the head of the main piece, the left and right sides of the back piece are respectively connected with side pieces, and the side pieces are arranged with the same length as the back piece; the lower edge of the upper piece is connected with a rear cover piece; the front piece and the upper piece are formed into a front piece with a curved surface by lamination, and the main piece is detachably connected at the head and tail along the length direction in the assembled state, and a polyhedral receiving cavity with a curved surface is formed by the cooperation of the side piece and the zipper assembly, and the side piece corresponding to the open mouth is a side piece with a long arc edge, which enhances the plasticity of the appearance of the backpack body.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A school bag with double zippers and a rear opening, comprising a shoulder strap (6) and a backpack body, characterized in that: The backpack body comprises a main body, a zipper assembly (2) and side panels (3), and the number of the side panels (3) and the number of the zipper assembly (2) are both two; The zipper assembly (2) comprises a first zipper tape (21) and a second zipper tape (22) which are matched with each other; the left and right sides of the main body head (10) are respectively connected with the side panels (3) in an integral manner, and the edges of the side panels (3) are provided with the first zipper tape (21); in the assembled state, the main body panels are detachably connected at the head and tail along the length direction to form a receiving cavity with open openings on the left and right sides, the shape of the side panels (3) matches the shape of the open openings one by one, the edges of the open openings are provided with the second zipper tape (22), and the side panels (3) are opened and closed by the zipper assembly (2); The shoulder strap (6) is fixed to the outer surface (101) of the head of the main piece, and in the assembled state, the tail (15) of the main piece is arranged toward the shoulder strap (6).

2. The double-zipper rear opening school bag according to claim 1, characterized in that: The tail portion (15) of the trunk piece is also connected to a rear cover piece (16) for covering the connection between the head and the tail; in the assembled state, the rear cover piece (16) overlaps the outer surface (101) of the head portion of the trunk piece, and the rear cover piece (16) is detachably connected to the outer surface (101) of the head portion of the trunk piece via a connecting piece (4).

3. The double-zipper rear opening school bag according to claim 2, characterized in that: The main body sheet in the unfolded state comprises a back sheet (11), a bottom sheet (12), a front sheet (13) and an upper sheet (14) which are connected in sequence along the length direction and are arranged with equal widths. The back sheet (11) is located at the head portion (10) of the main body sheet. The left and right sides of the back sheet (11) are respectively connected in one piece with side sheets (3), and the side sheets (3) are arranged with the same length as the back sheet (11). The lower edge of the upper sheet (14) is connected in one piece with a rear cover sheet (16).

4. The double-zipper rear opening school bag according to claim 3, characterized in that: The upper stop of the first zipper tape (21) is located at one end of the upper edge of the side panel (3) close to the main panel, and the lower stop of the first zipper tape (21) is located at one end of the lower edge of the side panel (3) close to the main panel; the upper stop of the second zipper tape (22) is located at the junction of the upper panel (14) and the rear cover panel (16), and the lower stop of the second zipper tape (22) is located at the junction of the bottom panel (12) and the back panel (11).

5. The double-zipper rear opening school bag according to claim 1 or 4, characterized in that: The first zipper tape (21) and the second zipper tape (22) are connected via a self-locking slider (23).

6. The double-zipper rear opening school bag according to claim 2, characterized in that: The connecting piece (4) comprises a backpack male buckle and a backpack female buckle which are matched and buckled together. The backpack male buckle is connected to the lower edge of the rear cover piece (16), and the backpack female buckle is provided on the outer surface (101) of the head of the main piece at a position opposite to the backpack male buckle.

7. The double-zipper rear opening school bag according to claim 1 or 3, characterized in that: The side piece (3) is rectangular, and the corners of the side piece (3) are all rounded.

8. The double-zipper rear opening school bag according to claim 3, characterized in that: Crease areas for folding and shaping are reserved between the back sheet (11) and the bottom sheet (12), between the bottom sheet (12) and the front sheet (13), between the front sheet (13) and the upper sheet (14), between the upper sheet (14) and the rear cover sheet (16), and between the back sheet (11) and the side sheets (3).

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