Rotary buckle cross adjustment backpack carrying system

Abstract

A knapsack bearing system capable of achieving cross adjustment through rotating buckles comprises two shoulder straps and two adjusting belts corresponding to the shoulder straps, one ends of the shoulder straps are connected with the upper portion of a knapsack body, the other ends of the shoulder straps are provided with female inserting buckles, one ends of the adjusting belts are connected with the lower portion of the knapsack body, the other ends of the adjusting belts are provided with male inserting buckles, and the male inserting buckles are connected with the upper portion of the knapsack body. The male inserting buckle can be matched with the female inserting buckle; comprising a rope belt winding and unwinding device fixed to a backpack body, the free end of the adjusting belt is connected with the male inserting buckle, and the fixed end of the adjusting belt is wound in the rope belt winding and unwinding device. According to the principle, after the female inserting buckle of the left side shoulder strap is matched with the male inserting buckle of the right side adjusting strap, and the female inserting buckle of the right side shoulder strap is matched with the male inserting buckle of the left side adjusting strap, a bearing system with two crossed straps is formed; and the strap can be tightened conveniently and quickly by rotating the rope belt winding and unwinding device and is not easy to loosen.

Description

Technical Field

[0001] The utility model relates to the technical field of bags and suitcases, in particular to a rotating buckle cross-adjusting backpack carrying system. Background Art

[0002] The carrying system of a traditional backpack generally only has basic shoulder straps, or simply has two fixed straps on both sides of the backpack that can be tied around the waist. There is no waist protection structure on the bag body, so it cannot protect the human waist when doing outdoor sports or carrying heavy items. In order to improve the carrying system, the Chinese patent announcement number CN204245386U discloses an adjustable backpack waist protection structure, which includes a backpack body, a waist protection structure is provided at the lower end of the back of the backpack body, and the waist protection structure includes a lock, a lock tongue, two waist protection pieces, two adjustment buckles and two waist protection belts, one end of the two waist protection pieces is fixedly connected to the two sides of the lower end of the backpack body, and the other ends of the two waist protection pieces are fixedly connected to an adjustment buckle and one end of a waist protection belt, respectively, and the other ends of the two waist protection belts are movably connected to the adjustment buckles on the waist protection pieces where they are located, and the lock and the lock tongue are movably sleeved on the two waist protection belts, and the lock and the lock tongue are mutually buckled and connected, and the side of the waist protection piece away from the body is provided with an outer pocket, and the other side of the waist protection piece close to the body is provided with an elastic protrusion, and the adjustment buckle is a Japanese buckle, and the adjustment buckle and one end of the waist protection belt on each waist protection piece are arranged up and down. The above-mentioned carrying system adjusts the tightness of the shoulder strap by tightening the webbing, which is not convenient and quick to adjust, and it is easy to loosen by fixing with the adjustment buckle. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a rotating buckle cross-adjusting backpack carrying system, which is convenient and quick to tighten the shoulder straps through the rotating rope belt retracting device and is not easy to loosen.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a rotating buckle cross-adjustable backpack carrying system, including two shoulder straps and two adjustment straps corresponding to the shoulder straps, one end of the shoulder strap is connected to the upper part of the backpack body, the other end of the shoulder strap is provided with a female buckle, one end of the adjustment strap is connected to the lower part of the backpack body, the other end of the adjustment strap is provided with a male buckle, and the male buckle can cooperate with the female buckle; including a rope belt retracting device fixed on the backpack body, the free end of the adjustment strap is connected to the male buckle, and the fixed end of the adjustment strap is rolled up in the rope belt retracting device. Principle of the utility model: after the female buckle of the left shoulder strap cooperates with the male buckle of the right adjustment strap, and after the female buckle of the right shoulder strap cooperates with the male buckle of the left adjustment strap, a carrying system with two crossed shoulder straps is formed; tightening the shoulder straps by rotating the rope belt retracting device is convenient and quick, and not easy to loosen.

[0005] As an improvement, waist protection plates are provided on both sides of the lower part of the backpack body, and the rope and belt retracting device is arranged on the waist protection plates.

[0006] As an improvement, a guide channel is provided on the waist protection plate, and the adjustment belt passes through the guide channel.

[0007] As an improvement, the adjustment belt is a webbing or a cord.

[0008] As an improvement, the free end of the shoulder strap is connected to the female buckle via an extended webbing.

[0009] As an improvement, the shoulder straps, extension webbing and adjustment straps form the shoulder straps of the backpack. After the female buckle of the left shoulder strap cooperates with the male buckle of the right adjustment strap, and after the female buckle of the right shoulder strap cooperates with the male buckle of the left adjustment strap, two crossed shoulder straps are formed.

[0010] As an improvement, the rope retracting and releasing device includes a base, a wire wheel pivotally connected to the base, a knob rotatably matched with the base, and a transmission mechanism, and the knob drives the wire wheel through the transmission mechanism.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] When the female buckle of the left shoulder strap matches with the male buckle of the right adjusting strap, and when the female buckle of the right shoulder strap matches with the male buckle of the left adjusting strap, a carrying system with two crossed shoulder straps is formed; tightening the shoulder straps is convenient and quick through the rotating rope retracting device, and it is not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of a carrying system with an adjustment belt as a rope.

[0014] Figure 2 Schematic diagram of a carrying system in which the adjustment straps are webbing straps.

[0015] Figure 3 This is a schematic diagram of the rope retracting and releasing device.

[0016] Figure 4 This is a schematic diagram of the internal structure of the rope retracting and releasing device.

[0017] Figure 5 This is an exploded view of the rope retractor.

[0018] Figure 6 It is a cross-sectional view of the rope retracting and releasing device. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] like Figure 1 , 2As shown, a rotating buckle cross-adjustable backpack carrying system includes two shoulder straps 2 and two adjustment straps 6 corresponding to the shoulder straps 2. The shoulder straps 2 are padded inside, and the two shoulder straps 2 are arranged symmetrically. The shoulder straps 2 mainly act on the shoulders of the human body. The fixed ends of the shoulder straps 2 are fixedly connected to the upper part of the backpack body 1, and the free ends of the shoulder straps 2 are fixedly connected to one end of the extension webbing 3, and the other end of the extension webbing 3 is connected to the female buckle 7. Two adjustment straps 6 are distributed on the left and right sides of the lower part of the backpack body 1. The lower part of the backpack body 1 is provided with waist protection pieces 5 on both sides, and the waist protection pieces 5 are provided with a rope and belt retracting device 4; the free end of the adjustment strap 6 is connected to a male buckle 8, and the fixed end of the adjustment strap 6 is rolled up in the rope and belt retracting device 4, and the rope and belt retracting device 4 can adjust the length of the rope; the waist protection piece 5 is provided with a guide channel, and the adjustment strap 6 passes through the guide channel so that the adjustment strap 6 extends from the end of the waist protection piece 5. After the adjustment strap 6 is tightened, the waist protection piece 5 can fit the waist of the human body. The male buckle 8 can cooperate with the female buckle 7. The shoulder strap 2, the extension webbing 3 and the adjustment strap 6 form the shoulder strap of the backpack. After the female buckle 7 of the left shoulder strap 2 cooperates with the male buckle 8 of the right adjustment strap 6, and after the female buckle 7 of the right shoulder strap 2 cooperates with the male buckle 8 of the left adjustment strap 6, two shoulder straps are formed to cross.

[0021] The adjustment strap 6 is a webbing or a cord. When the adjustment strap 6 is a cord, the cord retracting device can be replaced by existing technology, such as the shoelace retractor of the existing technology, or the knob buckle of BOA company. Figures 3 to 6As shown, when the adjustment belt 6 is a webbing, the rope and belt retracting device 4 includes a base 41, a reel 43 pivotally connected to the base 41, a knob 42 rotatably matched with the base 41, and a transmission mechanism 44; the knob 42 drives the reel 43 through the transmission mechanism 44, and a accommodating cavity is provided in the base 41, and the transmission mechanism 44 includes a first rotating shaft 443, a first gear 442 provided at one end of the first rotating shaft 443, a second rotating shaft 445 parallel to the first rotating shaft 443, a second gear 444 provided at one end of the second rotating shaft 445, a third rotating shaft 447 parallel to the second rotating shaft 445, and a third rotating shaft 448 provided at the first rotating shaft 449. A third gear 446 is provided at one end of the three-shaft 447, a fourth gear 441 is provided at one end of the wire wheel 43, the first gear 442 is meshed with the second gear 444 and the fourth gear 441 respectively, the second gear 444 is meshed with the first gear 442 and the third gear 446 respectively, the wire wheel 43, the first shaft 443, the second shaft 445 and the third shaft 447 are pivotally connected in the accommodating cavity of the base 41; a pivot seat 47 is provided on the base 41, a through hole connected to the accommodating cavity is provided in the pivot seat 47, a first latch tooth 471 is provided on the inner wall of the pivot seat 47, and a first latch tooth 471 is provided on the outer wall of the pivot seat 47. An annular groove is provided on the wall, the knob 42 is buckled on the pivot seat 47, and a buckle is provided on the knob 42. The buckle cooperates with the annular groove to realize the connection and pivoting of the knob 42 and the pivot seat 47; a rotating body 46 is provided in the pivot seat 47, and an annular flange is provided on the inner wall of the pivot seat 47 to support the rotating body 46. A first crown gear 449 is provided at the bottom of the rotating body 46, and the first crown gear 449 is meshed with the second crown gear 447 on the third rotating shaft 447. A groove is provided at the bottom of the rotating body 46, and a second clamping tooth 461 is provided on the inner wall of the groove. The first clamping tooth 471 is meshed with the second crown gear 447 on the third rotating shaft 447. The directions of the latch teeth 461 are opposite; a check piece 45 is provided between the knob 42 and the rotating body 46, and the check piece 45 includes a column 451, a first stop portion 452 provided on the upper part of the column 451, and a second stop portion 453 provided on the lower part of the column 451, the first stop portion 452 cooperates with the first latch tooth 471, and the second stop portion 453 cooperates with the second latch tooth 461, and a clamping column cooperating with the column 451 is provided at the bottom of the knob 42, the knob 42 drives the check piece 45, the check piece 45 drives the rotating body 46, the rotating body 46 drives the transmission mechanism, and the transmission mechanism drives the wire wheel 43 to retract and release the winding webbing.

[0022] Principle of the utility model: after the female buckle 7 of the left shoulder strap 2 cooperates with the male buckle 8 of the right adjusting belt 6, and after the female buckle 7 of the right shoulder strap 2 cooperates with the male buckle 8 of the left adjusting belt 6, a carrying system with two crossed shoulder straps is formed; tightening the shoulder straps by rotating the rope belt retracting device is convenient and quick, and it is not easy to loosen.

Claims

1. A rotating buckle cross-adjustable backpack carrying system, comprising two shoulder straps and two adjustment straps corresponding to the shoulder straps, wherein one end of the shoulder strap is connected to the upper part of the backpack body, the other end of the shoulder strap is provided with a female buckle, one end of the adjustment strap is connected to the lower part of the backpack body, the other end of the adjustment strap is provided with a male buckle, and the male buckle can cooperate with the female buckle; characterized in that: It comprises a rope and belt retracting device fixed on the backpack body, the free end of the adjusting belt is connected with the male buckle, and the fixed end of the adjusting belt is rolled up in the rope and belt retracting device.

2. A rotating buckle cross-adjustable backpack carrying system according to claim 1, characterized in that: Waist protection pieces are arranged on both sides of the lower part of the backpack body, and the rope belt retracting and releasing device is arranged on the waist protection pieces.

3. The rotating buckle cross-adjustable backpack carrying system according to claim 2, characterized in that: The waist protection piece is provided with a guide channel, and the adjustment belt passes through the guide channel.

4. The rotating buckle cross-adjustable backpack carrying system according to claim 1, characterized in that: The adjusting belt is a webbing or a cord.

5. The rotating buckle cross-adjustable backpack carrying system according to claim 1, characterized in that: The free end of the shoulder strap is connected to the female buckle through an extended webbing.

6. The rotating buckle cross-adjustable backpack carrying system according to claim 5, characterized in that: The shoulder straps, extension webbing and adjustment straps form the shoulder straps of the backpack. After the female buckle of the left shoulder strap cooperates with the male buckle of the right adjustment strap, and after the female buckle of the right shoulder strap cooperates with the male buckle of the left adjustment strap, two crossed shoulder straps are formed.

7. The rotating buckle cross-adjustable backpack carrying system according to claim 1, characterized in that: The rope and belt retracting device comprises a base, a wire wheel pivotally connected in the base, a knob rotatably matched with the base, and a transmission mechanism, and the knob drives the wire wheel through the transmission mechanism.

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