An outdoor sports backpack with adjustable tightness

Abstract

The utility model relates to sports backpack technical field discloses a kind of outdoor sports backpacks of elasticity adjustment, including zipper, backpack, elasticity mechanism, bag and shoulder strap, any one position is too tight in the utility model, the adjacent block structure on this position is pressed, and the clamping and fixing of elasticity cord is loosened, to drag block structure sliding outside elasticity cord, and then the length of this position elasticity cord is lengthened, so that elasticity adjustment is carried out in any position, prevent the inconvenience of wearing caused by the fact that the certain position between two shoulder straps is too tight or too loose, improve the use comfort of crowd, and the block structure of lowermost end is loosened after position movement, and clamping and fixing elasticity cord after movement, so that the clamping and fixed position adjustment of elasticity cord is adjusted, realize that the zipper of upper elasticity cord is tightened or loosened to the adjustment of both sides, realize the effect of quick elasticity adjustment, adjust according to human elasticity, improve the practicability of use.

Description

Technical Field

[0001] This utility model relates to the field of sports backpack technology, specifically an outdoor sports backpack with adjustable tightness. Background Technology

[0002] Outdoor backpacks are used to carry necessities such as food, clothing, and tools. Factors to consider include capacity, carrying system, and waterproof materials. However, some people find the front straps too tight, causing them to slip off their shoulders and making them difficult to wear securely. Current technology uses zippers to connect the front straps for fixation, but zippers are not easily adjustable, leading to them being too tight or too loose for some users. This makes them unsuitable for most people. Furthermore, the zipper tension is inconsistent throughout the backpack; some people have bulky areas (such as the chest and abdomen), causing the zipper to only partially connect while the rest is obstructed, making it difficult to adjust the tightness to suit individual needs and affecting usability. Summary of the Invention

[0003] This invention provides an outdoor sports backpack with adjustable tightness, which overcomes the shortcomings described in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: An adjustable outdoor sports backpack includes zippers, a backpack, an elastic mechanism, a bag, and shoulder straps. The shoulder straps are symmetrically sewn onto the front of the backpack, and the shoulder straps have bags on their surfaces. The zippers are symmetrically arranged on the inner sides of the two shoulder straps, and the elastic mechanism connecting the two zippers adjusts the tightness when the two zippers are pulled outwards in opposite directions. The tensioning mechanism includes a connecting rope, a tension rope, and a locking block structure. The connecting rope is continuously bent and fixed to the surface of the zipper. The tension rope passes through the connecting rope and moves in the opposite direction to the locking block structure, causing the connecting rope to pull the tension rope outward. The locking block structures are arranged in the middle of two connecting ropes. The two ends of the folded tension rope pass through multiple locking block structures simultaneously, and the locking block structures clamp and fix the passing tension rope. When the locking block structure is pressed, the clamping and fixing of the tension rope is released, and the spacing between adjacent locking block structures on the tension rope is adjusted.

[0005] A preferred technical solution: The locking block structure includes a semicircular block, a first spring, a support rod, a force-bearing block, a housing, and a pressure structure. The semicircular blocks are symmetrically arranged on the inner side of the housing. The first spring is symmetrically arranged on the left and right sides of the housing. The force-bearing block presses against the outer end of the first spring, causing the support rod on the inner side of the force-bearing block to translate inside the housing. The inner end of the support rod is fixed to the side of the pressure structure. The left and right sides of the pressure structure elastically press against the semicircular blocks respectively, causing the tension rope to be clamped and fixed in a curved shape between the pressure structure and the semicircular blocks.

[0006] A preferred technical solution: The pressure structure includes a slide rail, an open plate, a rubber plate, a round rod, and a second spring. The open plates are symmetrically arranged at both ends of the second spring. The slide rail is fixed parallel to the inner side of the housing, and the round rod on the side of the open plate slides within the slide rail, allowing the open plate to move elastically relative to the semicircular block under the elasticity of the second spring. The rubber plate is arranged on the outer side of the open plate, and the rubber plate presses against the side of the tension rope, causing the tension rope to be elastically clamped in a bent shape between the semicircular block and the tension rope.

[0007] A preferred technical solution: The pressure structure has semicircular blocks on its left and right sides that are tilted at 50°, and the tilted semicircular blocks of the pressure structure press against the tension rope.

[0008] A preferred technical solution: The lowermost end of the elastic cord is clamped and fixed by a locking block structure, and when the lowermost end of the elastic cord is stretched, the two zipper strips connected by the connecting cord are tightened through the connecting cord.

[0009] Compared with existing technologies, this technical solution has the following advantages: When any position in this invention is too tight, the adjacent locking block structure at that position is pressed down, and the clamping and fixing of the elastic cord is released. This causes the locking block structure to slide outside the elastic cord, thereby extending the length of the elastic cord at that position. Consequently, the elastic cord is released from the two zipper strips through the connecting rope. At this time, the elastic cord between the adjacent locking blocks will be pulled closer to the zipper strips through the connecting rope, thus tightening them. The tightness can be adjusted by sequentially adjusting the position of the locking blocks downwards, allowing for adjustment at any position. This prevents any position between the two shoulder straps from being too tight or too loose, causing inconvenience when wearing the garment and improving the user's comfort.

[0010] In this invention, the force blocks on both sides of the housing are manually pressed, causing the pressure structure to loosen its clamping and fixing of the elastic rope. Then, the bottommost locking block structure is released and moved. After the movement, the pressing housing is released, allowing the locking block structure to clamp and fix the elastic rope again. This adjusts the clamping and fixing position of the elastic rope, enabling the upper elastic rope to tighten or loosen the zipper on both sides. This avoids the problem of the locking block structure easily sliding on the elastic rope due to the tightening force on the zipper, achieving a quick tightening and loosening effect. It can be adjusted according to the user's tightness, improving its practicality. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is an overall drawing of the present utility model.

[0013] Figure 2 This is a plan view of the tensioning mechanism.

[0014] Figure 3 This is a planar schematic diagram of the card block structure.

[0015] Figure 4 This is a side view of the pressure structure.

[0016] In the diagram: Zipper - 1, Backpack - 2, Elastic Mechanism - 3, Bag - 4, Shoulder Strap - 5, Connecting Rope - 31, Elastic Rope - 32, Locking Block Structure - 33, Semicircular Block - 331, First Spring - 332, Support Rod - 333, Force-Bearing Block - 334, Shell - 335, Pressure Structure - 336, Slide Rail - 3361, Opening Plate - 3362, Rubber Plate - 3363, Round Rod - 3364, Second Spring - 3365. Detailed Implementation

[0017] like Figures 1 to 4 As shown, this utility model proposes an outdoor sports backpack with adjustable tightness, including a zipper 1, a backpack 2, an elastic mechanism 3, a bag 4, and shoulder straps 5. The shoulder straps 5 are symmetrically sewn on the front of the backpack 2, and the bag 4 is provided on the surface of the shoulder straps 5. The zipper 1 is symmetrically arranged on the inner side of the two shoulder straps 5, and when the two zipper 1 are pulled outwards in opposite directions, the tightness is adjusted by the elastic mechanism 3 connecting the two zipper 1. The tensioning mechanism 3 is provided with a connecting rope 31, a tensioning rope 32, and a locking block structure 33. The connecting rope 31 is continuously bent and fixed on the surface of the zipper 1. The tensioning rope 32 passes through the connecting rope 31 and moves in the opposite direction to the locking block structure 33, causing the connecting rope 31 to pull the tensioning rope 32 outward. The locking block structures 33 are arranged in the middle of the two connecting ropes 31. The two ends of the folded tensioning rope 32 pass through multiple locking block structures 33 at the same time, and the locking block structures 33 clamp and fix the passing tensioning rope 32. When the locking block structure 33 is pressed, the clamping and fixing of the tensioning rope 32 is released, and the spacing between the upper and lower adjacent locking block structures 33 on the tensioning rope 32 is adjusted.

[0018] Furthermore, the elastic cord 32 passes through the curved positions of the two uppermost connecting cords 31 on the left and right sides, separating the two ends of the elastic cord 32. The two ends of the elastic cord 32 are then guided through the locking block structure 33, which clamps and fixes the elastic cord 32. This tightens the zipper strips 1 on both sides and drives the two shoulder straps 5 to be stably fixed on the shoulders of the human body, preventing the shoulder straps 5 from slipping off easily.

[0019] Furthermore, the zipper 1 is sewn onto the surface of the shoulder strap 5. The zipper 1 has two separable chains that mesh with each other and close. When it is necessary to quickly loosen the restraint of the elastic cord 32, it can be quickly pulled open through the zipper engagement of the zipper 1, which facilitates the quick loosening of the elastic cord 32 and allows the shoulder strap 5 to be removed from the human shoulder more quickly.

[0020] Furthermore, in this invention, the elastic cords 32 between adjacent locking structures 33 are of the same length. When any position is too tight, the adjacent locking structure 33 at that position is pressed down, and the clamping and fixing of the elastic cord 32 is released, thereby pulling the locking structure 33 to slide outside the elastic cord 32, thereby extending the length of the elastic cord 32 at that position, and then allowing the elastic cord 32 to loosen from the two zipper strips 1 through the connecting cord 31. At this time, the elastic cords 32 between the adjacent locking structures 33 will be pulled closer to the zipper strips 1 through the connecting cord 31 and become tighter. The tightness can be adjusted by adjusting the position of the locking structure 33 downwards in sequence, so that the tightness can be adjusted at any position, preventing a certain position between the two shoulder straps 5 from being too tight or too loose, causing inconvenience in wearing, and improving the user's comfort.

[0021] The locking structure 33 includes a semicircular block 331, a first spring 332, a support rod 333, a force-bearing block 334, a housing 335, and a pressure structure 336. The semicircular blocks 331 are symmetrically arranged on the left and right sides of the housing 335. The first spring 332 is symmetrically arranged on the left and right sides of the housing 335. The force-bearing block 334 presses against the outer end of the first spring 332, causing the support rod 333 inside the force-bearing block 334 to translate inside the housing 335. The inner end of the support rod 333 is fixed to the side of the pressure structure 336. The left and right sides of the pressure structure 336 elastically press against the semicircular blocks 331, and the tension rope 32 is clamped and fixed in a curved shape between the pressure structure 336 and the semicircular blocks 331.

[0022] Furthermore, when the pressure structure 336 is stationary, it presses outward, clamping the tension rope 32 between the pressure structure 336 and the semicircular block 331. At this time, the elasticity of the first spring 332 is transmitted to the pressure structure 336 through the force block 334 and the support rod 333. At this time, the first spring 332 and the pressure structure 336 on the same side move in the same direction. The elasticity of the first spring 332 increases the pressure of the pressure structure 336 pressing the tension rope 32 against the side of the semicircular block 331, preventing the downward pulling force of the tension rope 32 from exceeding the elasticity of the pressure structure 336.

[0023] Furthermore, the inner side of the semicircular block 331 is arc-shaped in the direction of the pressure structure 336, and the arc-shaped surface of the semicircular block 331 has a triangular tooth structure. The triangular tooth structure transforms the downward friction of the elastic rope 32 into pressure that squeezes the triangular tooth structure, thereby reducing the frictional movement of the elastic rope 32. In conjunction with the pressure of the pressure structure 336, the elastic rope 32 is clamped between the pressure structure 336 and the semicircular block 331, preventing the elastic rope 32 from being easily pulled and moving downwards due to friction.

[0024] The pressure structure 336 includes a slide rail 3361, an opening plate 3362, a rubber plate 3363, a round rod 3364, and a second spring 3365. The second spring 3365 has opening plates 3362 symmetrically arranged at its left and right ends. The slide rail 3361 is fixed parallel to the inner side of the housing 335, and the round rod 3364 on the side of the opening plate 3362 slides within the slide rail 3361, allowing the opening plate 3362 to move elastically relative to the semicircular block 331 under the elasticity of the second spring 3365. The rubber plate 3363 is arranged on the outer side of the opening plate 3362, and the rubber plate 3363 presses against the side of the tension rope 32, causing the tension rope 32 to be elastically clamped in a bent shape between the semicircular block 331 and the tension rope 32.

[0025] Furthermore, the opening plate 3362 slides along the inner track of the slide rail 3361 via the round rod 3364, allowing the opening plate 3362 to only translate. This allows the second spring 3365 to push the opening plate 3362 outward under its elasticity, causing the rubber plate 3363 on the side of the opening plate 3362 to tilt and press against the tension rope 32. Only when both ends of the tension rope 32 pass through the inside of the housing 335 can the second spring 3365 be compressed and generate elasticity outward through the mutual support of the opening plates 3362 on both sides. When one end of the tension rope 32 passes through the inside of the housing 335, the opening plate 3362 on the other side will not support the second spring 3365.

[0026] The pressure structure 336 is tilted at 50° on the left and right sides to correspond to the semicircular blocks 331, and the pressure structure 336 tilts to the semicircular blocks 331 to press against the tension rope 32.

[0027] Furthermore, the rubber plate 3363 tilts at 50° to press against the elastic cord 32, causing the elastic cord 32 to bend on the side of the semicircular block 331 and form a triangular pressing elastic cord 32 under the pressure of the two rubber plates 3363, making it easier for the elastic cord 32 to press against the triangular toothed structure of the semicircular block 331.

[0028] The lowermost end of the elastic cord 32 is clamped and fixed by the locking block structure 33, and when the lowermost end of the elastic cord 32 is stretched, it is tightened by the two zipper strips 1 connected by the connecting cord 31.

[0029] Furthermore, the bottommost locking block structure 33 clamps and fixes the bottommost position of the tension rope 32. By clamping and fixing the tension rope 32 with the bottommost locking block structure 33, when the position of the bottommost locking block structure 33 is adjusted, it can drive the two ends of the tension rope 32 to move closer to and further away from the connecting rope 31 on the surface of the two zipper strips 1, thereby adjusting the tension between the two zipper strips 1.

[0030] In this invention, the force blocks 334 on both sides of the housing 335 are manually pressed, and the pressure structure 336 is released from clamping and fixing the tension rope 32. Then, the bottommost locking block structure 33 is released and moved, and the pressing housing 335 is released after the movement. The locking block structure 33 then clamps and fixes the tension rope 32 again, thereby adjusting the clamping and fixing position of the tension rope 32. This allows the upper tension rope 32 to tighten or loosen the zipper strips 1 on both sides, avoiding the problem that the locking block structure 33 is easy to slide on the tension rope 32 due to the tightening force on the zipper strips 1. This achieves the effect of quick tension adjustment, which can be adjusted according to the tightness of the human body, improving the practicality of use.

[0031] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. An outdoor sports backpack with adjustable tightness, characterized in that, It includes zippers, backpack, elastic mechanism, bag and shoulder straps. The shoulder straps are symmetrically sewn on the front of the backpack and the shoulder strap surface is provided with bag. The zippers are symmetrically arranged on the inside of the two shoulder straps. When the two zippers are pulled outward in opposite directions, the tension is adjusted by the elastic mechanism connecting the two zippers. The tensioning mechanism includes a connecting rope, a tension rope, and a locking block structure. The connecting rope is continuously bent and fixed to the surface of the zipper. The tension rope passes through the connecting rope and moves in the opposite direction to the locking block structure, causing the connecting rope to pull the tension rope outward. The locking block structures are arranged in the middle of two connecting ropes. The two ends of the folded tension rope pass through multiple locking block structures simultaneously, and the locking block structures clamp and fix the passing tension rope. When the locking block structure is pressed, the clamping and fixing of the tension rope is released, and the spacing between adjacent locking block structures on the tension rope is adjusted.

2. The outdoor sports backpack with adjustable tightness according to claim 1, characterized in that, The locking structure includes a semicircular block, a first spring, a support rod, a force-bearing block, a housing, and a pressure structure. The semicircular blocks are symmetrically arranged on the inner side of the housing. The first spring is symmetrically arranged on the left and right sides of the housing. The force-bearing block presses against the outer end of the first spring, causing the support rod inside the force-bearing block to translate within the housing. The inner end of the support rod is fixed to the side of the pressure structure. The left and right sides of the pressure structure elastically press against the semicircular blocks, causing the tension rope to be clamped and fixed in a curved shape between the pressure structure and the semicircular blocks.

3. The outdoor sports backpack with adjustable tightness according to claim 2, characterized in that, The pressure structure includes a slide rail, an open plate, a rubber plate, a round rod, and a second spring. The open plates are symmetrically arranged at the left and right ends of the second spring. The slide rail is fixed parallel to the inside of the housing, and the round rod on the side of the open plate slides along the inner track of the slide rail, allowing the open plate to move elastically relative to the semicircular block under the elasticity of the second spring. The rubber plate is arranged on the outside of the open plate, and the rubber plate presses against the side of the tension rope, causing the tension rope to be elastically clamped in a bent shape between the semicircular block and the tension rope.

4. The outdoor sports backpack with adjustable tightness according to claim 3, characterized in that, The pressure structure has semicircular blocks on its left and right sides that are tilted at 50°, and the tilted semicircular blocks of the pressure structure press against the tension rope.

5. The outdoor sports backpack with adjustable tightness according to claim 4, characterized in that, The lowermost end of the elastic cord is clamped and fixed by a locking block structure, and when the lowermost end of the elastic cord is stretched, the two zipper strips connected by the connecting cord are tightened through the connecting cord.

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