A quick tightening mechanism for an outdoor sports backpack

Abstract

The utility model relates to bag technology field discloses a kind of outdoor sports backpack quick tightening mechanism, including backpack main body, elasticity mechanism, cloth belt, shoulder strap and fixed band, the utility model in to the elasticity of backpack main body side face is contracted, so that elasticity drives the fixed band of backpack main body side face to be mutually close, so that backpack main body side face is contracted by the contraction of elasticity and is tightened space, prevent the interior article of backpack main body from being less and producing shaking when moving, make elasticity continuous "S" shape contraction and tighten the stability of article in the backpack main body, prevent the part article in the backpack main body from being not easily fastened by elasticity and shaking when moving, and the force of upper and lower sides of blocking plate and arc strip clamping elasticity is under the action of improving fixed force to resist the contraction force of elasticity, so as to improve the fastening effect of elasticity contraction, prevent the jolt in the process of moving to cause elasticity slowly loosen and tighten backpack main body.

Description

Technical Field

[0001] This utility model relates to the field of bag technology, specifically a quick-tightening mechanism for outdoor sports backpacks. Background Technology

[0002] Sports backpacks are convenient for carrying and protecting items and for travel. Quickly tightening the backpack is key to ensuring comfort and safety. The core goal is to transfer the weight of the items inside the backpack to the hips, reducing shoulder pressure. The backpack should be tightened so that it is close to the back. When exercising on flat ground, keep the backpack at an angle of about 40° to the body to reduce the swaying of items inside the backpack during exercise and improve the stability of the center of gravity of the items inside the backpack.

[0003] However, existing technology, which uses elastic bands on the sides of the backpack for horizontal tightening and fixation, does not easily cover all the items inside the backpack. This causes some items inside the backpack to still easily swing around during movement. Furthermore, during movement, the swinging of items generates an outward force, which can easily cause the backpack to stretch the elastic bands outward. This can cause the elastic bands to slowly loosen their tightening effect on the backpack, resulting in the items inside the backpack shifting off the back's center of gravity and becoming unstable. Summary of the Invention

[0004] This invention provides a quick-tightening mechanism for outdoor sports backpacks, which overcomes the shortcomings described in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: An outdoor sports backpack quick-tightening mechanism includes a backpack body, an elastic mechanism, fabric straps, shoulder straps, and fixing straps. Two fabric straps and two shoulder straps are provided, and they are connected to form two shoulder straps. The outer ends of the shoulder straps and fabric straps at both ends of the shoulder straps are sewn to the same side of the backpack body. The fixing straps are sewn in a continuous "S" shape to the left and right sides of the backpack body, and the shoulder straps are also sewn with fixing straps. One end of the elastic mechanism is inserted into and fixed to the side of the backpack body in a continuous "S" shape corresponding to the fixing straps, while the other end of the elastic mechanism stretches and contracts in a continuous "S" shape, with the fixing straps on the shoulder straps preventing the elastic mechanism from rebounding. The tensioning mechanism includes a fixing block, a threaded head, an adjustment mechanism, and a tension rope. There are two fixing blocks, which are fixed to the side of the backpack body and the surface of the shoulder strap, respectively. The tension rope has threaded heads at both ends, which are screwed into the fixing blocks. The tension rope passes through the adjustment mechanism, presses the adjustment mechanism and locks it on the outside of the tension rope, and the elastic force of the tension rope causes the fixing strap on the surface of the shoulder strap to prevent the adjustment mechanism from moving elastically.

[0006] A preferred technical solution: The adjustment mechanism includes a force-bearing block, a square block, a locking device, an arc-shaped strip, a horizontal plate, an open plate, a support structure, and a blocking plate. The locking device at the lower end of the force-bearing block presses the arc-shaped strip through elastic contraction, causing the arc-shaped strip to abut against the elastic rope passing through the middle of the square block. The horizontal plate is fixed at the lower end of the square block, and a hollow groove is provided above the horizontal plate. The open plate is fixed on the surface of the shoulder strap, and the open plate is inserted into the hollow groove above the horizontal plate. Guided by the horizontal plate, the open plate presses upward against the support structure. A blocking plate located inside the square block is provided at the upper end of the support structure. The support structure pushes the blocking plate upward against the lower side of the elastic rope, and the blocking plate and the arc-shaped strip clamp the upper and lower sides of the elastic rope.

[0007] A preferred technical solution: The support structure is provided with a trapezoidal block, a round rod and an elastic block. The elastic block is fixed at the upper end of the trapezoidal block and the round rod is connected to the upper end of the elastic block. The open plate enters the hollow groove and is guided to move along the inclined side of the trapezoidal block, which drives the trapezoidal block to push the round rod upward and makes the blocking plate at the upper end of the round rod abut against the lower side of the tension rope. Under the elastic compression of the elastic block, the open plate abuts against the surface of the horizontal plate.

[0008] A preferred technical solution: The overall shape of the baffle plate is arc-shaped, and the upward arc-shaped surface of the baffle plate is a continuous concave-convex shape. The downward arc-shaped surface of the arc strip has the same shape as the upward arc-shaped surface of the baffle plate. The concave-convex shapes of the baffle plate and the arc strip are matched and correspond to each other, clamping the upper and lower sides of the elastic rope.

[0009] A preferred technical solution: The open plate is fixed to the shoulder strap surface next to the fixing strap. When the elastic cord contracts in a continuous "S" shape, the square block moves towards the fixing strap on the shoulder strap surface, and the open plate on the shoulder strap surface is inserted into the hollow groove above the horizontal plate to block it.

[0010] Compared with existing technologies, this technical solution has the following advantages: In this invention, two fixing blocks are respectively fixed to the side of the backpack body and the surface of the shoulder strap. When the position of the adjustment mechanism is adjusted at the end of the elastic cord near the shoulder strap, the adjustment mechanism moves towards the backpack body following the contraction direction of the elastic cord. As a result, the adjustment mechanism is blocked by the fixing strap on the surface of the shoulder strap, thus contracting the elastic cord on the side of the backpack body. This causes the elastic cord to pull the fixing straps on the side of the backpack body closer together, thereby tightening the space on the side of the backpack body by the contraction of the elastic cord. This prevents the backpack body from shaking during movement when there are few items inside. The continuous "S"-shaped contraction of the elastic cord tightens and stabilizes all the items inside the backpack body, preventing the problem of some items inside the backpack body not being properly secured by the elastic cord and shaking during movement.

[0011] In this invention, when the elastic cord contracts, the open plate is inserted into the hollow groove above the horizontal plate. The open plate then pushes the support structure upward, causing the support structure to drive the blocking plate to press against the lower side of the elastic cord. The open plate also blocks the square block through the horizontal plate. Under the combined force of the blocking plate and the arc strip clamping the upper and lower sides of the elastic cord, the fixing force is increased to counteract the contraction force of the elastic cord, thereby improving the tightening effect of the elastic cord during contraction and preventing the elastic cord from slowly loosening and tightening the backpack body due to bumps during movement. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is an overall drawing of the present utility model.

[0014] Figure 2 This is a plan view of the tensioning mechanism.

[0015] Figure 3 This is a side view of the adjustment mechanism.

[0016] Figure 4 This is a three-dimensional schematic diagram of the supporting structure.

[0017] In the diagram: Backpack body - 1, Elastic mechanism - 2, Fabric strap - 3, Shoulder strap - 4, Fixing strap - 5, Fixing block - 21, Threaded head - 22, Adjustment mechanism - 23, Elastic rope - 24, Force-bearing block - 231, Square block - 232, Positioner - 233, Curved strip - 234, Horizontal plate - 235, Opening plate - 236, Support structure - 237, Blocking plate - 238, Trapezoidal block - 2371, Round rod - 2372, Elastic block - 2373. Detailed Implementation

[0018] like Figures 1 to 4 As shown, this utility model proposes a quick-tightening mechanism for outdoor sports backpacks, including a backpack body 1, an elastic mechanism 2, a fabric strap 3, a shoulder strap 4, and a fixing strap 5. Two fabric straps 3 and two shoulder straps 4 are provided, and the fabric straps 3 and shoulder straps 4 are connected to form two shoulder straps. The outer ends of the shoulder straps 4 and fabric straps 3 at both ends of the shoulder straps are sewn to the same side of the backpack body 1. The fixing strap 5 is sewn to the left and right sides of the backpack body 1 in a continuous "S" shape, and the surface of the shoulder straps 4 is sewn with the fixing strap 5. One end of the elastic mechanism 2 is inserted into and fixed to the side of the backpack body 1 in a continuous "S" shape corresponding to the fixing strap 5, and the other end of the elastic mechanism 2 is stretched and contracted in a continuous "S" shape, and the elastic mechanism 2 is prevented from rebounding by the fixing strap 5 on the surface of the shoulder straps 4. The tensioning mechanism 2 includes a fixing block 21, a threaded head 22, an adjustment mechanism 23, and a tension rope 24. There are two fixing blocks 21, which are fixed to the side of the backpack body 1 and the surface of the shoulder strap 4, respectively. The tension rope 24 has threaded heads 22 at both ends, which are screwed and fixed in the fixing block 21. The tension rope 24 passes through the adjustment mechanism 23, presses the adjustment mechanism 23 and makes it lock onto the outside of the tension rope 24, and the elastic force of the tension rope 24 causes the fixing strap 5 on the surface of the shoulder strap 4 to prevent the adjustment mechanism 23 from moving elastically.

[0019] Furthermore, the continuous "S"-shaped elastic cords 24 are located on both sides of the backpack body 1, near the middle and upward. When there are few items inside the backpack body 1, the continuous "S"-shaped contraction of the backpack body 1 applies pressure from top to bottom inside the backpack body 1, preventing items inside the backpack body 1 from easily coming off the fastening position at the top. At the same time, it prevents the bottom of the backpack body 1 from being difficult to tighten and stabilize when there are few items. In addition, the continuous "S"-shaped elastic cords 24 can create a wrapping and contraction effect in a large area on the side of the backpack body 1, preventing some items from not being tightened and stabilized on the side of the backpack body 1.

[0020] Furthermore, the two ends of the elastic cord 24 are screwed onto two fixing blocks 21 via threaded heads 22. By screwing the threaded heads 22, the elastic cord 24 can be detached from the fixing blocks 21 and pulled out of the fixing strap 5, thus creating a detachable elastic cord 24. In this utility model, the two fixing blocks 21 are respectively fixed to the side of the backpack body 1 and the surface of the shoulder strap 4. When the position of the adjustment mechanism 23 is adjusted at the end of the elastic cord 24 near the shoulder strap 4, the adjustment mechanism 23 moves towards the backpack body 1 following the contraction direction of the elastic cord 24. As a result, the adjustment mechanism 23 is blocked by the fixing strap 5 on the surface of the shoulder strap 4, thus contracting the elastic cord 24 on the side of the backpack body 1. This causes the elastic cord 24 to pull the fixing straps 5 on the side of the backpack body 1 closer together, thereby tightening the space on the side of the backpack body 1 by the contraction of the elastic cord 24, preventing the backpack body 1 from shaking during movement due to insufficient items inside.

[0021] The adjustment mechanism 23 includes a force-bearing block 231, a square block 232, a locking device 233, an arc-shaped strip 234, a horizontal plate 235, an open plate 236, a support structure 237, and a blocking plate 238. The locking device 233 at the lower end of the force-bearing block 231 presses the arc-shaped strip 234 through elastic contraction, causing the arc-shaped strip 234 to abut against the elastic rope 24 passing through the middle of the square block 232. The horizontal plate 235 is fixed to the lower end of the square block 232, and a hollow part is provided above the horizontal plate 235. The slot, the opening plate 236 is fixed to the surface of the shoulder strap 4, and the opening plate 236 is inserted into the hollow slot above the horizontal plate 235. Guided by the horizontal plate 235, the opening plate 236 presses the support structure 237 upward. The upper end of the support structure 237 is provided with a blocking plate 238 located inside the square block 232. The support structure 237 pushes the blocking plate 238 upward to press against the lower side of the elastic rope 24, and the blocking plate 238 and the arc strip 234 clamp the upper and lower sides of the elastic rope 24.

[0022] Furthermore, the locking device 233 consists of a spring and a locking assembly. The spring provides kinetic energy to the locking assembly, which in turn presses the force block 231 to drive the locking device 233 to press down. After pressing down, the locking assembly achieves self-locking and unlocking. When self-locking, the locking device 233 drives the arc strip 234 to move downward under the elastic force of the spring. When unlocking, the arc strip 234 is in a stationary state and does not press against the tension rope 24. By pressing the locking device 233, a reciprocating pressing and locking effect is achieved. After the force block 231 presses the locking device 233, the arc strip 234 presses against or releases the upper side of the tension rope 24.

[0023] Furthermore, in this invention, firstly, when the elastic cord 24 retracts, the opening plate 236 is not inserted into the hollow slot above the horizontal plate 235. The square block 232 is still blocked by the fixing strap 5 on the surface of the shoulder strap 4. During movement, the backpack body 1 pulls the elastic cord 24 outward through the fixing strap 5, causing the elastic cord 24 to push the square block 232 into the fixing strap 5 on the surface of the shoulder strap 4. At this time, the pulling force on the elastic cord 24 is easily greater than the resistance force of the arc strip 234. Therefore, the square block 232 moves in the direction corresponding to the opening plate 236. Secondly, when the elastic cord 24 retracts, the opening plate 236 moves outward through the fixing strap 5. The opening plate 236 is inserted into the hollow groove above the horizontal plate 235. Then, the opening plate 236 pushes the support structure 237 upward, causing the support structure 237 to drive the blocking plate 238 to press against the lower side of the elastic rope 24. The opening plate 236 blocks the square block 232 through the horizontal plate 235. Under the force of the blocking plate 238 and the arc strip 234 clamping the upper and lower sides of the elastic rope 24, the fixing force is increased to resist the contraction force of the elastic rope 24, thereby improving the tightening effect of the elastic rope 24 and preventing the elastic rope 24 from slowly loosening and tightening the backpack body 1 due to the bumps during the movement.

[0024] The support structure 237 includes a trapezoidal block 2371, a round rod 2372, and an elastic block 2373. The elastic block 2373 is fixed to the upper end of the trapezoidal block 2371, and the round rod 2372 is connected to the upper end of the elastic block 2373. The opening plate 236 enters the hollow groove and is guided to move along the inclined side of the trapezoidal block 2371, which drives the trapezoidal block 2371 to push the round rod 2372 upward, and the blocking plate 238 at the upper end of the round rod 2372 abuts against the lower side of the tension rope 24. Under the elastic compression of the elastic block 2373, the opening plate 236 abuts against the surface of the horizontal plate 235.

[0025] Furthermore, the opening plate 236 has a right-facing concave structure, with the concave position corresponding to the movement of the horizontal plate 235. The upper right edge of the opening plate 236 is inclined, guiding the sliding of the trapezoidal block 2371 at its inclined position. When the opening plate 236 is inserted into the hollow groove, the inclined position of the upper end of the opening plate 236 slides and guides the trapezoidal block 2371 at its inclined position, thus driving the trapezoidal block 2371 to rise upward.

[0026] Furthermore, the elastic block 2373 is made of rubber and has a deformation elasticity effect. When the trapezoidal block 2371 drives the blocking plate 238 at the upper end of the round rod 2372 to press against the lower side of the tension rope 24, the elastic block 2373 will be compressed. Under this compression elastic force, the trapezoidal block 2371 will press down on the surface of the opening plate 236, so that the opening plate 236 presses against the surface of the horizontal plate 235, avoiding the gap between the opening plate 236 and the horizontal plate 235 from causing the opening plate 236 to loosen easily, and improving the blocking effect of the opening plate 236 on the square block 232.

[0027] The blocking plate 238 is generally arc-shaped, and the upward arc surface of the blocking plate 238 is a continuous concave-convex shape. The downward arc surface of the arc strip 234 has the same shape as the upward arc surface of the blocking plate 238. The concave-convex shapes of the blocking plate 238 and the arc strip 234 correspond to each other and clamp the upper and lower sides of the elastic rope 24.

[0028] The opening plate 236 is fixed to the surface of the shoulder strap 4 next to the fixing strap 5. When the elastic cord 24 contracts in a continuous "S" shape, the square block 232 moves toward the fixing strap 5 on the surface of the shoulder strap 4, and the opening plate 236 on the surface of the shoulder strap 4 is inserted into the hollow groove above the horizontal plate 235 to block it.

[0029] Furthermore, when the open plate 236 disengages from the hollow groove above the horizontal plate 235, the trapezoidal block 2371 falls under gravity, causing the tension rope 24 to disengage from the pressure of the blocking plate 238. At this time, when the arc-shaped strip 234 above the tension rope 24 presses down, it will cause the tension rope 24 to press down against the inner side of the blocking plate 238. At this time, since the support structure 237 is in a loose state, the blocking plate 238 can only be placed along the edge of the tension rope 24, and the blocking plate 238 does not exert upward pressure on the tension rope 24. The force of 4, the concave and convex shape of the surface of the baffle plate 238 can only provide a certain frictional resistance to the lower side of the elastic rope 24. When the baffle plate 238 and the arc strip 234 clamp and press against the upper and lower sides of the elastic rope 24, the concave and convex shape of the baffle plate 238 also has a clamping and fixing effect on the elastic rope 24, making it easy for the elastic rope 24 to fall into the concave and convex shape of the baffle plate 238, enhancing the fixing effect on the elastic rope 24, and preventing the square block 232 from sliding on the surface of the elastic rope 24 when the elastic rope 24 has a large contraction force.

[0030] 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. A quick-tightening mechanism for outdoor sports backpacks, characterized in that, The backpack includes a main body, an elastic mechanism, fabric straps, shoulder straps, and a fixing strap. There are two fabric straps and two shoulder straps, which are connected to form two carrying straps. The outer ends of the shoulder straps and fabric straps at both ends of the carrying straps are sewn to the same side of the main body of the backpack. The fixing straps are sewn to the left and right sides of the main body of the backpack in a continuous "S" shape, and the surface of the shoulder straps is also sewn with fixing straps. One end of the elastic mechanism is inserted into and fixed to the side of the main body of the backpack in a continuous "S" shape corresponding to the fixing straps, and the other end of the elastic mechanism is stretched and contracted in a continuous "S" shape, and the elastic mechanism is prevented from rebounding by the fixing straps on the surface of the shoulder straps. The tensioning mechanism includes a fixing block, a threaded head, an adjustment mechanism, and a tension rope. There are two fixing blocks, which are fixed to the side of the backpack body and the surface of the shoulder strap, respectively. The tension rope has threaded heads at both ends, which are screwed into the fixing blocks. The tension rope passes through the adjustment mechanism, presses the adjustment mechanism and locks it on the outside of the tension rope, and the elastic force of the tension rope causes the fixing strap on the surface of the shoulder strap to prevent the adjustment mechanism from moving elastically.

2. The quick-tightening mechanism for an outdoor sports backpack according to claim 1, characterized in that, The adjustment mechanism includes a force-bearing block, a square block, a locking device, an arc-shaped strip, a horizontal plate, an open plate, a support structure, and a blocking plate. The locking device at the lower end of the force-bearing block presses the arc-shaped strip with elastic contraction, causing the arc-shaped strip to abut against the elastic rope passing through the middle of the square block. The horizontal plate is fixed at the lower end of the square block, and a hollow groove is provided above the horizontal plate. The open plate is fixed to the surface of the shoulder strap, and the open plate is inserted into the hollow groove above the horizontal plate. Guided by the horizontal plate, the open plate presses the support structure upward. A blocking plate located inside the square block is provided at the upper end of the support structure. The support structure pushes the blocking plate upward to press against the lower side of the elastic rope, and the blocking plate and the arc-shaped strip clamp the upper and lower sides of the elastic rope.

3. The quick-tightening mechanism for an outdoor sports backpack according to claim 2, characterized in that, The support structure includes a trapezoidal block, a round rod, and an elastic block. The elastic block is fixed to the upper end of the trapezoidal block, and the round rod is connected to the upper end of the elastic block. The open plate enters the hollow groove and is guided to move along the inclined side of the trapezoidal block, which drives the trapezoidal block to push the round rod upward, and makes the blocking plate at the upper end of the round rod abut against the lower side of the tension rope. Under the elastic compression of the elastic block, the open plate abuts against the surface of the horizontal plate.

4. The quick-tightening mechanism for an outdoor sports backpack according to claim 3, characterized in that, The baffle plate is arc-shaped in general, and the upward arc surface of the baffle plate is a continuous concave-convex shape. The downward arc surface of the arc strip has the same shape as the upward arc surface of the baffle plate. The concave-convex shapes of the baffle plate and the arc strip match each other and clamp the upper and lower sides of the elastic rope.

5. The quick-tightening mechanism for an outdoor sports backpack according to claim 4, characterized in that, The opening plate is fixed to the shoulder strap surface next to the fixing strap. When the elastic cord contracts in a continuous "S" shape, the square block moves towards the fixing strap on the shoulder strap surface, and the opening plate on the shoulder strap surface is inserted into the hollow groove above the horizontal plate to block it.

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