Backpack with anti-falling straps

Abstract

The knapsack comprises a knapsack body, the top side of the knapsack body is fixedly connected with upper straps, the bottom side of the knapsack body is fixedly connected with lower straps, the upper straps and the lower straps are symmetrically arranged, the upper straps are fixedly connected with buckles, the side walls of the lower straps are inserted into the buckles in a surrounding mode, supporting blocks are movably inserted into the lower straps, and the supporting blocks are fixedly connected with the knapsack body. The side wall of the lower strap is movably inserted into the storage groove, a limiting assembly is arranged in the storage groove, so that the position of the lower strap is fixed through the clamping plate, anti-skid teeth are arranged and better meshed with the outer wall of the lower strap, and the lower strap is connected more tightly through the supporting block; according to the backpack, the two sets of upper straps are conveniently and rapidly connected, the problem that the upper straps fall off in the using process of the backpack can be avoided, the backpack better adapts to a user, the using back is better protected by arranging a buffering cushion, and safety and practicability are higher.

Description

Technical Field

[0001] The utility model relates to the technical field of backpack manufacturing, in particular to a backpack with anti-loosening straps. Background Art

[0002] Backpack is a general term for school bags carried on shoulders. The most obvious feature of this type of school bag is that there are two straps on the back for buckling on the shoulders. It is generally widely used in kindergartens and primary schools. According to the different materials, it can be divided into canvas bags, Oxford cloth bags, and nylon cloth bags. The main advantage of a backpack is that it is easy to carry and frees your hands. It is a must-have for almost every student.

[0003] In this regard, the Chinese invention patent with the authorization announcement number CN114098268A discloses a backpack that can prevent falling off, including a backpack body, an upper shoulder strap, a lower shoulder strap and a connecting piece, wherein the upper shoulder strap runs through the upper end of the connecting piece to the inner cavity of the connecting piece, and the lower end of the lower shoulder strap is fixedly installed with a fixing rod, and the left and right ends of the connecting piece are both provided with sliding openings, and the left and right ends of the fixing rod respectively run through the sliding openings at the left and right ends of the connecting piece, and three L-shaped fixing blocks are fixedly installed at the bottom end of the inner cavity of the connecting piece, the upper end of the upper shoulder strap is fixedly connected to the upper end of the backpack body, the upper end of the lower shoulder strap is fixedly connected to the lower end of the connecting piece, and the lower end of the lower shoulder strap is fixedly connected to the lower end of the backpack body. When the backpack body is carried on the back, the fixing rod can be put into different L-shaped fixing blocks by pulling the fixing rod by hand to adjust the length of the shoulder strap, which is convenient and quick, and does not need to be adjusted repeatedly. Putting the fixing rod into the L-shaped fixing block of the same height can effectively solve the problem of high and low shoulders;

[0004] The backpack in the existing device can better balance the shoulder straps for adjustment, but the shoulder straps are often buckled by buckles, which is very convenient to adjust. However, during the adjustment process, the shoulder straps are easy to fall off from the buckles, causing the shoulder straps to fall off and affecting the use. For this reason, we propose a backpack with anti-falling shoulder straps to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a backpack with anti-detachment straps to solve the problems raised in the above-mentioned background technology.

[0006] A backpack with anti-slip straps comprises a backpack, wherein an upper strap is fixedly connected to the top side of the backpack, a lower strap is fixedly connected to the bottom side of the backpack, and two groups of the upper straps and the lower straps are symmetrically arranged, a buckle is fixedly connected to the upper strap, a side wall of the lower strap is inserted in the buckle, a support block is movably inserted in the lower strap, a storage groove is provided on the support block, the side wall of the lower strap is movably inserted in the storage groove, and a limiting component is arranged in the storage groove;

[0007] A movable groove is provided in the top wall of the support block, and the limit assembly contains a splint, a support rod, a slide plate, a pull rod, a pull handle and a slide groove. The splint is placed in the storage groove as a whole, and the top wall of the splint is fixedly connected to the support rod, and the support rod is provided in multiple groups;

[0008] First, the side wall of the upper shoulder strap is fixedly connected with an anti-skid belt, and the side wall of the anti-skid belt is fixedly connected to the clamping block; second, the side wall of the upper shoulder strap is fixedly connected with a clamping box, and the clamping block is movably clamped in the clamping box.

[0009] Preferably, the bottom wall of the clamping plate is fixedly connected with anti-slip teeth.

[0010] Preferably, an anti-slip pad is fixedly connected to the inner bottom surface of the storage groove.

[0011] Preferably, a cushion is fixedly connected to the back wall of the backpack, and a handle is fixedly connected to the top wall of the backpack.

[0012] Preferably, the top end of the support rod is movably inserted into the movable groove, and the top end of the support rod is fixedly connected to the bottom wall of the slide plate.

[0013] Preferably, a pull rod is fixedly connected to the top of the skateboard, and the top end of the pull rod movably passes through the top wall of the support block and extends upward.

[0014] Preferably, the top wall of the pull rod is fixedly connected to the bottom wall of the pull handle.

[0015] Preferably, a spring is movably sleeved on the pull rod, and the bottom end of the spring is fixedly connected to the top wall of the slide plate.

[0016] Preferably, the top end of the spring is fixedly connected to the top surface of the movable groove.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model completes the connection between the upper and lower straps by passing the lower strap through the storage slot provided on the support block and then installing the loop in the buckle on the upper strap. By arranging a limit assembly in the support block, the position of the lower strap is fixed after adjusting the length of the lower strap, which can effectively prevent the lower strap from falling off from the buckle, making the connection of the lower strap more stable and making the backpack safer to use. When in use, the user first pulls the pull handle upwards, and the pull handle drives the pull rod to move upwards, thereby driving the slide plate to move upwards. At this time, the spring is compressed, the slide plate drives the multiple groups of support rods to move upwards, and the support rods drive the splint to move upwards, thereby The lower shoulder strap is inserted between the splint and the bottom surface of the storage slot. The handle is released, the spring rebounds, and the slide plate is pushed to move downward. The slide plate pushes the support rod downward, so that the splint fixes the position of the lower shoulder strap. The anti-slip teeth are provided to better engage with the outer wall of the lower shoulder strap. The anti-slip pad is provided to make the support block more tightly connected to the lower shoulder strap. The anti-slip belt, the card block and the card box are provided to conveniently and quickly connect the two sets of upper shoulder straps, which can avoid the problem of the upper shoulder strap falling off during the use of the backpack, better adapt to the user, and the buffer pad is provided to better protect the back of the user, which is safer and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the flat structure of the card block and the card box in the utility model;

[0021] Figure 3 This is a schematic diagram of the overall external structure of the support block in the utility model;

[0022] Figure 4 It is a schematic diagram of the internal front view structure of the support block in the utility model.

[0023] In the figure: 1. backpack; 101. cushion; 102. handle; 2. upper shoulder strap; 201. buckle; 3. lower shoulder strap; 4. support block; 401. storage slot; 402. movable slot; 403. anti-skid pad; 5. limit assembly; 51. splint; 52. anti-skid teeth; 53. support rod; 54. skateboard; 55. pull rod; 56. handle; 57. slide slot; 58. spring; 6. anti-skid belt; 7. card block; 8. card box. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-2 The utility model provides a technical solution: a backpack with anti-slip straps, comprising a backpack 1, an upper strap 2 is fixedly connected to the top side of the backpack 1, a lower strap 3 is fixedly connected to the bottom side of the backpack 1, and the upper strap 2 and the lower strap 3 are symmetrically arranged in two groups, a buckle 201 is fixedly connected to the upper strap 2, and the side wall of the lower strap 3 is inserted in the buckle 201 around, and a support block 4 is movably inserted on the lower strap 3, and a storage groove 401 is opened on the support block 4, and the side wall of the lower strap 3 is movably inserted in the storage groove 401, and a limiting component 5 is arranged in the storage groove 401. By arranging the limiting component 5 in the support block 4, after adjusting the length of the lower strap 3, the position of the lower strap 3 is fixed, which can effectively prevent the lower strap 3 from falling off from the buckle 201, so that the connection of the lower strap 3 is more stable, and the backpack 1 is safer to use;

[0027] It should be noted that a movable groove 402 is provided in the top wall of the support block 4, and the limit assembly 5 contains a clamping plate 51, a support rod 53, a slide plate 54, a pull rod 55, a pull handle 56 and a slide groove 57. The clamping plate 51 is placed in the storage groove 401 as a whole, and the top wall of the clamping plate 51 is fixedly connected to the support rod 53, and the support rod 53 is provided with multiple groups;

[0028] It should be noted that, first, the side wall of the upper shoulder strap 2 is fixedly connected with an anti-slip belt 6, and the side wall of the anti-slip belt 6 is fixedly connected to the clamping block 7. Second, the side wall of the upper shoulder strap 2 is fixedly connected with a clamping box 8, and the clamping box 8 is movably clamped with the clamping block 7. By providing the anti-slip belt 6, the clamping block 7 and the clamping box 8, the two sets of upper shoulder straps 2 can be connected quickly and conveniently, which can avoid the problem of the upper shoulder straps 2 falling off during the use of the backpack 1 and better adapt to the user.

[0029] Embodiment 2:

[0030] See also Figure 3 and Figure 4 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment;

[0031] Specifically, the top end of the support rod 53 is movably inserted into the movable groove 402 , and the top end of the support rod 53 is fixedly connected to the bottom wall of the slide plate 54 .

[0032] It should be noted that a pull rod 55 is fixedly connected to the top of the slide plate 54 , and the top end of the pull rod 55 movably passes through the top wall of the support block 4 and extends upward, and the top wall of the pull rod 55 is fixedly connected to the bottom wall of the pull handle 56 .

[0033] It should be noted that a spring 58 is movably sleeved on the pull rod 55, the bottom end of the spring 58 is fixedly connected to the top wall of the slide plate 54, and the top end of the spring 58 is fixedly connected to the top surface of the movable groove 402. The user first pulls the handle 56 upwards, and the handle 56 drives the pull rod 55 to move upward, thereby driving the slide plate 54 to move upward. At this time, the spring 58 is compressed, and the slide plate 54 drives multiple groups of support rods 53 to move upward, and the support rods 53 drive the splint 51 to move upward, thereby inserting the lower shoulder strap 3 between the splint 51 and the bottom surface of the storage groove 401. Release the handle 56, the spring 58 rebounds, and pushes the slide plate 54 to move downward. The slide plate 54 pushes the support rod 53 downward, so that the splint 51 fixes the position of the lower shoulder strap 3.

[0034] In addition, the bottom wall of the splint 51 is fixedly connected with anti-skid teeth 52, and the inner bottom surface of the storage groove 401 is fixedly connected with an anti-skid pad 403. By providing the anti-skid teeth 52, it can better engage with the outer wall of the lower strap 3, and by providing the anti-skid pad 403, the support block 4 is more tightly connected to the lower strap 3.

[0035] Specifically, a cushion pad 101 is fixedly connected to the back wall of the backpack 1. By providing the cushion pad 101, the back of the user is better protected, the safety is higher, and the practicality is stronger. A handle 102 is fixedly connected to the top wall of the backpack 1, which is easier to take.

[0036] Embodiment 3:

[0037] See also Figures 1 to 4 , which is the third embodiment of the utility model, and this embodiment is based on the above two embodiments;

[0038] When the utility model is in use, the lower shoulder strap 3 is passed through the storage slot 401 provided on the support block 4, and then the loop is installed in the buckle 201 on the upper shoulder strap 2, so as to complete the connection between the upper shoulder strap 2 and the lower shoulder strap 3. By arranging the limit assembly 5 in the support block 4, the position of the lower shoulder strap 3 is fixed after adjusting the length of the lower shoulder strap 3, which can effectively prevent the lower shoulder strap 3 from falling off from the buckle 201, so that the connection of the lower shoulder strap 3 is more stable, and the backpack 1 is safer to use. When in use, the user first pulls the pull handle 56 upwards, and the pull handle 56 drives the pull rod 55 to move upwards, thereby driving the slide plate 54 to move upwards. At this time, the spring 58 is compressed, and the slide plate 54 drives the multiple groups of support rods 53 to move upwards, and the support rods 53 drive the splint 51 to move upwards. The lower shoulder strap 3 is inserted between the clamp plate 51 and the inner bottom surface of the storage groove 401, the handle 56 is released, the spring 58 rebounds, and the slide plate 54 is pushed to move downward. The slide plate 54 pushes the support rod 53 downward, so that the clamp plate 51 fixes the position of the lower shoulder strap 3. By providing the anti-slip teeth 52, it is better engaged with the outer wall of the lower shoulder strap 3. By providing the anti-slip pad 403, the support block 4 is more tightly connected to the lower shoulder strap 3. By providing the anti-slip belt 6, the card block 7 and the card box 8, the two sets of upper shoulder straps 2 can be connected quickly and conveniently, which can avoid the problem of the upper shoulder strap 2 falling off during the use of the backpack 1, and better adapt to the user. By providing the buffer pad 101, the back of the user is better protected, and the safety is higher and the practicality is stronger.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A backpack with anti-drop straps, comprising a backpack (1), characterized in that: The top side of the backpack (1) is fixedly connected with an upper shoulder strap (2), the bottom side of the backpack (1) is fixedly connected with a lower shoulder strap (3), and the upper shoulder strap (2) and the lower shoulder strap (3) are symmetrically arranged in two groups, the upper shoulder strap (2) is fixedly connected with a buckle (201), the side wall of the lower shoulder strap (3) is inserted in the buckle (201), the lower shoulder strap (3) is movably inserted with a support block (4), the support block (4) is provided with a storage groove (401), the side wall of the lower shoulder strap (3) is movably inserted in the storage groove (401), and a limiting component (5) is arranged in the storage groove (401); A movable groove (402) is provided in the top wall of the support block (4); the limit assembly (5) contains a clamping plate (51), a support rod (53), a slide plate (54), a pull rod (55), a pull handle (56) and a slide groove (57); the clamping plate (51) is placed in its entirety in the storage groove (401); the top wall of the clamping plate (51) is fixedly connected to the support rod (53), and the support rod (53) is provided in multiple groups; Firstly, the side wall of the upper shoulder strap (2) is fixedly connected with an anti-skid belt (6), and the side wall of the anti-skid belt (6) is fixedly connected to a clamping block (7); secondly, the side wall of the upper shoulder strap (2) is fixedly connected with a clamping box (8), and the clamping block (7) is movably clamped with the clamping box (8).

2. A backpack with anti-drop straps according to claim 1, characterized in that: The top end of the support rod (53) is movably inserted into the movable groove (402), and the top end of the support rod (53) is fixedly connected to the bottom wall of the slide plate (54).

3. A backpack with anti-drop straps according to claim 2, characterized in that: A pull rod (55) is fixedly connected to the top of the slide plate (54), and the top end of the pull rod (55) movably penetrates the top wall of the support block (4) and extends upward.

4. A backpack with anti-drop straps according to claim 3, characterized in that: The top wall of the pull rod (55) is fixedly connected to the bottom wall of the pull handle (56).

5. A backpack with anti-drop straps according to claim 3, characterized in that: A spring (58) is movably sleeved on the pull rod (55), and the bottom end of the spring (58) is fixedly connected to the top wall of the slide plate (54).

6. A backpack with anti-drop straps according to claim 5, characterized in that: The top end of the spring (58) is fixedly connected to the inner top surface of the movable groove (402).

7. A backpack with anti-drop straps according to claim 1, characterized in that: The bottom wall of the clamping plate (51) is fixedly connected with anti-slip teeth (52).

8. The backpack with anti-drop straps according to claim 1, characterized in that: An anti-slip pad (403) is fixedly connected to the inner bottom surface of the storage groove (401).

9. The backpack with anti-drop straps according to claim 1, characterized in that: A cushion pad (101) is fixedly connected to the back wall of the backpack (1), and a handle (102) is fixedly connected to the top wall of the backpack (1).

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