Single-shoulder and double-shoulder switchable backpack

By incorporating a U-shaped frame and sleeve structure at the bottom of the backpack body, and utilizing zippers and vertical strips for locking, the problems of slippage and discomfort associated with single-shoulder backpacks are solved, achieving stability and comfort when carrying the backpack on one shoulder.

CN222323037UActive Publication Date: 2025-01-10GUANGZHOU RUIXIN LEATHER GOODS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421247175.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-01-10
Estimated Expiration
2034-06-03

AI Technical Summary

Technical Problem

Existing single-shoulder/double-shoulder backpacks tend to slip off when worn on one shoulder and are not comfortable enough. The current design cannot fully integrate the shoulder straps, causing them to tilt.

Method used

Design a backpack that can be switched between single and double shoulders. By setting a U-shaped frame and a sleeve structure at the bottom of the backpack body, the sleeve can slide on the U-shaped frame and is engaged by a zipper structure and vertical strips to ensure the stability and comfort of the shoulder strap when carried on one shoulder.

Benefits of technology

It achieves stability and comfort when the backpack is carried on one shoulder, preventing it from slipping off, and further ensures the stability of the sleeve position through the combination of vertical strips and top fixation structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222323037U_ABST
    Figure CN222323037U_ABST
Patent Text Reader

Abstract

The utility model discloses a single-shoulder and double-shoulder switchable knapsack, relates to the technical field of knapsacks, and aims to solve the technical problem that the current single-shoulder and double-shoulder switchable knapsack is easy to slip off when being carried on a single shoulder, the single-shoulder and double-shoulder switchable knapsack comprises a knapsack main body, two groups of straps are arranged in the center of the bottom of the rear side of the knapsack main body side by side, and a zipper structure is arranged between the two groups of straps. A connecting structure is arranged at the bottom of the backpack body and comprises a bottom plate, a U-shaped frame is arranged on the side, facing the straps, of the bottom plate, two sets of sleeves are movably arranged on the U-shaped frame, the two sets of sleeves are correspondingly connected with the bottom ends of the two sets of straps, and a plurality of sets of first vertical strips are arranged on the side, facing the bottom plate, of the U-shaped frame at equal intervals; a plurality of sets of second vertical strips are arranged on the side, opposite to the first vertical strips, of the interior of the sleeve at equal intervals, and a jacking and fixing structure is arranged on the side, back to the second vertical strips, of the interior of the sleeve. The utility model has the advantages that the single shoulder is not easy to slip off, and the comfort of the single shoulder is better.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, and more specifically to a backpack with switchable single and double shoulders. Background Art

[0002] A backpack refers to a bag carried on the back. It is made of various materials, including leather, plastic, polyester, canvas, nylon, cotton and linen. In an era when individuality is increasingly valued, various styles such as simple, retro, and cartoon also cater to the needs of fashion people to express their individuality from different aspects. There are many types of backpacks, and backpacks that can be switched between single and double shoulders are currently a more popular style.

[0003] The straps of an existing backpack that can be switched between single and double shoulders are usually arranged in a herringbone shape. In a normal state, it is used as a double-shoulder backpack. When it needs to be carried on one shoulder, the two sets of straps are combined together by a zipper to form a single strap, so that the person can carry it on one shoulder. However, due to the herringbone design, the two sets of straps cannot be completely combined by the zipper. When it is carried on one shoulder, the backpack is in a tilted state, so it is easy to slip off, and it is affected by the bottom of the strap, and it is not comfortable when carried on one shoulder. In view of this, we propose a backpack that can be switched between single and double shoulders. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a backpack with a single shoulder and a double shoulder switchable, so as to solve the technical problem that the current backpack with a single shoulder and a double shoulder switchable is easy to slip when carried on one shoulder.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a backpack that can be switched between single and double shoulders, comprising a backpack body, two groups of shoulder straps are arranged side by side at the center of the rear bottom of the backpack body, and a zipper structure is arranged between the two groups of shoulder straps, a connecting structure is arranged at the bottom of the backpack body, and the connecting structure includes a bottom plate, a U-shaped frame is arranged on the bottom plate facing one side of the shoulder straps, two groups of sleeves are movably arranged on the U-shaped frame, and the two groups of sleeves are correspondingly connected to the bottom ends of the two groups of shoulder straps;

[0006] The U-shaped frame has several groups of first vertical bars arranged at equal intervals on one side of the bottom plate, several groups of second vertical bars are arranged at equal intervals inside the sleeve on the side opposite to the first vertical bars, and a top fixing structure is arranged inside the sleeve on the side facing away from the second vertical bars.

[0007] The two sets of shoulder straps can be moved to the center of the U-shaped frame when the backpack body is carried on two shoulders. The two sets of shoulder straps can be connected side by side by the zipper structure to form a single shoulder strap.

[0008] Preferably, the zipper structure includes a first zipper strip and a second zipper strip, the first zipper strip is arranged on one group of shoulder straps, the second zipper strip is arranged on another group of shoulder straps, and the first zipper strip and the second zipper strip are arranged opposite to each other, and a lock head is arranged between the first zipper strip and the second zipper strip.

[0009] Preferably, the bottom plate is fixed to the bottom of the backpack body by rivets, and supporting feet are arranged at the four corners of the bottom of the bottom plate.

[0010] Preferably, two adjacent groups of first vertical bars on the U-shaped frame form a slot, and two adjacent groups of second vertical bars on the sleeve form a slot.

[0011] Preferably, the top fixing structure includes a push plate, which is located inside the sleeve, and springs are arranged at four corners of the push plate on the side facing away from the second vertical bar, and one end of the spring is connected to the side of the sleeve facing away from the push plate.

[0012] Preferably, a plurality of groups of balls are movably arranged on the push plate facing away from the spring, and the balls are arranged at equal intervals.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The U-shaped frame is convenient for carrying both shoulders and for carrying both backpacks on one shoulder.

[0015] 2. The utility model also arranges a first vertical bar on the U-shaped frame, and a second vertical bar and a top fixing structure inside the sleeve. The first vertical bar and the second vertical bar are arranged opposite to each other. Therefore, when a person carries the backpack body on one shoulder or both shoulders, the shoulder strap is subjected to tension. At this time, the first vertical bar and the second vertical bar will be engaged with each other, so that the sleeve will not slide, and with the cooperation of the top fixing structure, the second vertical bar on the sleeve can also be engaged with the first vertical bar on the U-shaped frame, further ensuring the stability of the sleeve on the U-shaped frame after the position is adjusted, thereby ensuring the stability of the sleeve in adjusting the position of the bottom end of the shoulder strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0018] Figure 3 It is a schematic diagram of the connection structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the U-shaped frame of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the casing of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Backpack body; 2. Shoulder straps; 3. Connection structure; 4. Bottom plate; 5. U-shaped frame; 501. First vertical bar; 6. Sleeve; 601. Second vertical bar; 7. Top fixing structure; 701. Spring; 702. Push plate; 703. Ball bearing; 8. Zipper structure; 801. First zipper strip; 802. Second zipper strip; 803. Lock. DETAILED DESCRIPTION

[0023] like Figures 1 to 5 As shown, the utility model relates to a backpack that can be switched between single and double shoulders, comprising a backpack body 1, two groups of shoulder straps 2 are arranged side by side at the center of the bottom of the rear side of the backpack body 1, and a zipper structure 8 is arranged between the two groups of shoulder straps 2, a connecting structure 3 is arranged at the bottom of the backpack body 1, and the connecting structure 3 includes a bottom plate 4, and a U-shaped frame 5 is arranged on the bottom plate 4 facing the side of the shoulder strap 2, and two groups of sleeves 6 are movably arranged on the U-shaped frame 5, and the two groups of sleeves 6 are correspondingly connected to the bottom ends of the two groups of shoulder straps 2. When the backpack body 1 is carried on both shoulders, the two groups of sleeves 6 can be moved back to back so that the two groups of shoulder straps 2 can be worn. The groups of shoulder straps 2 are arranged in a herringbone shape, which is convenient for carrying the backpack on both shoulders. When the backpack body 1 is carried on one shoulder, the two groups of sleeves 6 can be moved to the center of the U-shaped frame 5. At this time, the two groups of shoulder straps 2 are connected side by side, and then the two groups of shoulder straps 2 are completely connected and merged through the zipper structure 8 to form a single shoulder strap 2. At this time, the person carries the backpack body 1 on one shoulder through the single shoulder strap 2, and the backpack body 1 will not tilt, which can ensure the stability of the single-shoulder carrying and is not easy to slip from the shoulder. The bottom of the strap 2 will not affect the person when carrying the backpack on one shoulder, thereby ensuring the comfort of single-shoulder carrying.

[0024] Specifically, the zipper structure 8 includes a first zipper strip 801 and a second zipper strip 802. The first zipper strip 801 is arranged on one group of shoulder straps 2, and the second zipper strip 802 is arranged on another group of shoulder straps 2. The first zipper strip 801 and the second zipper strip 802 are arranged opposite to each other, and a lock 803 is arranged between the first zipper strip 801 and the second zipper strip 802. When carried on one shoulder, the first zipper strip 801 and the second zipper strip 802 are arranged side by side, and then the lock 803 is pulled to connect the first zipper strip 801 and the second zipper strip 802, thereby connecting the two groups of shoulder straps 2.

[0025] Furthermore, the bottom plate 4 is fixed to the bottom of the backpack body 1 by rivets, and supporting feet are arranged at the four corners of the bottom of the bottom plate 4. The bottom plate 4 cooperates with the supporting feet to support the backpack body 1 and prevent the bottom of the backpack body 1 from directly contacting the ground.

[0026] In an embodiment of the utility model, a plurality of groups of first vertical bars 501 are arranged at equal intervals on one side of the U-shaped frame 5 facing the bottom plate 4, a plurality of groups of second vertical bars 601 are arranged at equal intervals on the side opposite to the first vertical bars 501 inside the sleeve 6, and a top fixing structure 7 is arranged on the side of the sleeve 6 facing away from the second vertical bars 601. When a person carries the backpack body 1 on one shoulder or both shoulders, the shoulder strap 2 is subjected to tension. At this time, the first vertical bar 501 and the second vertical bar 601 will be engaged with each other to prevent the sleeve 6 from sliding, and with the cooperation of the top fixing structure 7, the second vertical bar 601 on the sleeve 6 can also be engaged with the first vertical bar 501 on the U-shaped frame 5, further ensuring the stability of the sleeve 6 on the U-shaped frame 5 after the position is adjusted, thereby ensuring the stability of the sleeve 6 in adjusting the position of the bottom end of the shoulder strap 2.

[0027] Specifically, two adjacent groups of first vertical bars 501 on the U-shaped frame 5 form a slot, and two adjacent groups of second vertical bars 601 on the sleeve 6 form a slot. The first vertical bar 501 is inserted into the slot formed by the second vertical bar 601, and the second vertical bar 601 is inserted into the slot formed by the first vertical bar 501, thereby achieving the engagement of the first vertical bar 501 and the second vertical bar 601.

[0028] Furthermore, the top fixing structure 7 includes a push plate 702, which is located inside the sleeve 6. Springs 701 are arranged at the four corners of the push plate 702 on the side facing away from the second vertical bar 601, and one end of the spring 701 is connected to the side of the sleeve 6 facing away from the push plate 702. Under the push of the spring 701, the push plate 702 is pressed against the U-shaped frame 5, thereby displacing the sleeve 6 and making the second vertical bar 601 of the sleeve 6 engage with the first vertical bar 501 of the U-shaped frame 5. When sliding the sleeve 6, it is necessary to push the sleeve 6 to separate the second vertical bar 601 of the sleeve 6 from the first vertical bar 501 of the U-shaped frame 5, and then slide the sleeve 6. After releasing the sleeve 6, the second vertical bar 601 of the sleeve 6 will engage with the first vertical bar 501 of the U-shaped frame 5 again.

[0029] Furthermore, a plurality of groups of balls 703 are movably arranged on the push plate 702 facing away from the spring 701 , and the balls 703 are arranged at equal intervals. The push plate 702 contacts the U-shaped frame 5 through the balls 703 , thereby reducing friction and facilitating the sliding sleeve 6 .

[0030] Working principle: This embodiment provides a backpack that can be switched between single shoulder and double shoulder. When in use, first, when the backpack body 1 is carried on both shoulders, the two sets of sleeves 6 can be moved back to back so that the two sets of shoulder straps 2 are distributed in a herringbone shape, which is convenient for carrying both shoulders. When the backpack body 1 is carried on one shoulder, the two sets of sleeves 6 can be moved to the center of the U-shaped frame 5. At this time, the two sets of shoulder straps 2 are connected side by side, and then the two sets of shoulder straps 2 are completely connected and merged through the zipper structure 8 to form a single shoulder strap 2. At this time, the person carries the backpack body 1 on one shoulder through the single shoulder strap 2, and the backpack body 1 will not tilt, which can ensure the stability of the single shoulder carrying and is not easy to slip off the shoulder. In addition, the bottom of the shoulder strap 2 will not affect the person when carrying on one shoulder, ensuring the comfort of the single shoulder carrying.

[0031] Secondly, when a person carries the backpack body 1 on one shoulder or both shoulders, the shoulder strap 2 is subjected to tension, and at this time, the first vertical bar 501 and the second vertical bar 601 are engaged, so that the sleeve 6 does not slide, and with the cooperation of the top fixing structure 7, the second vertical bar 601 on the sleeve 6 can also be engaged with the first vertical bar 501 on the U-shaped frame 5, further ensuring the stability of the sleeve 6 on the U-shaped frame 5 after the position is adjusted, thereby ensuring the stability of the sleeve 6 in adjusting the position of the bottom end of the shoulder strap 2;

[0032] Finally, under the push of the spring 701, the push plate 702 is pressed against the U-shaped frame 5, thereby displacing the sleeve 6 and engaging the second vertical bar 601 of the sleeve 6 with the first vertical bar 501 of the U-shaped frame 5. When sliding the sleeve 6, it is necessary to push the sleeve 6 to separate the second vertical bar 601 of the sleeve 6 from the first vertical bar 501 of the U-shaped frame 5, and then slide the sleeve 6. After releasing the sleeve 6, the second vertical bar 601 of the sleeve 6 and the first vertical bar 501 of the U-shaped frame 5 will engage again, and the push plate 702 contacts with the U-shaped frame 5 through the ball 703, thereby reducing friction and facilitating the sliding of the sleeve 6.

[0033] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A backpack with switchable single and double shoulders, characterized in that: The backpack comprises a main body (1), two groups of shoulder straps (2) are arranged side by side at the center of the rear bottom of the main body (1), and a zipper structure (8) is arranged between the two groups of shoulder straps (2); a connecting structure (3) is arranged at the bottom of the main body (1), and the connecting structure (3) comprises a bottom plate (4); a U-shaped frame (5) is arranged on the bottom plate (4) facing the side of the shoulder straps (2); two groups of sleeves (6) are movably arranged on the U-shaped frame (5), and the two groups of sleeves (6) are correspondingly connected to the bottom ends of the two groups of shoulder straps (2); The U-shaped frame (5) is provided with a plurality of groups of first vertical bars (501) arranged at equal intervals on one side facing the bottom plate (4); a plurality of groups of second vertical bars (601) are arranged at equal intervals on the side opposite to the first vertical bars (501) inside the sleeve (6); and a top fixing structure (7) is arranged on the side of the sleeve (6) facing away from the second vertical bars (601).

2. A backpack that can be switched between single and double shoulders according to claim 1, characterized in that: The zipper structure (8) comprises a first zipper strip (801) and a second zipper strip (802), wherein the first zipper strip (801) is arranged on one group of shoulder straps (2), and the second zipper strip (802) is arranged on another group of shoulder straps (2), and the first zipper strip (801) and the second zipper strip (802) are arranged opposite to each other, and a lock head (803) is arranged between the first zipper strip (801) and the second zipper strip (802).

3. A backpack that can be switched between single and double shoulders according to claim 1, characterized in that: The bottom plate (4) is fixed to the bottom of the backpack body (1) by means of rivets, and supporting feet are arranged at the four corners of the bottom of the bottom plate (4).

4. The backpack with switchable single and double shoulders according to claim 1, characterized in that: Two adjacent groups of first vertical bars (501) on the U-shaped frame (5) form a slot, and two adjacent groups of second vertical bars (601) on the sleeve (6) form a slot.

5. The backpack with switchable single and double shoulders according to claim 1, characterized in that: The top fixing structure (7) comprises a push plate (702), and the push plate (702) is located inside the sleeve (6). Springs (701) are arranged at four corners of the push plate (702) on the side facing away from the second vertical bar (601), and one end of the spring (701) is connected to the side of the sleeve (6) facing away from the push plate (702).

6. The backpack with switchable single and double shoulders according to claim 5, characterized in that: The push plate (702) is movably arranged with a plurality of groups of balls (703) on one side facing away from the spring (701), and the balls (703) are arranged at equal intervals.