A backpack that increases load-bearing capacity and saves effort

Abstract

The present invention relates to a backpack that can increase the load-bearing capacity while saving effort, and belongs to the technical field of backpacks. The backpack frame includes a backpack frame and a backpack bag, the backpack frame includes a shoulder strap, a movable frame and a support rod, the shoulder strap is connected to the movable frame, the movable frame is connected to the support rod, the backpack bag is connected to the movable frame, and a roller is provided at the bottom of the support rod. The support rod is a telescopic rod structure, and when the backpack is loaded, the roller can be extended to the ground to roll to assist the backpack in loading. The beneficial effects of the present invention are: simple structure, easy to disassemble and assemble, the support rod is installed on the backpack frame, and the roller is installed at the bottom of the support rod to reduce fatigue caused by long-term carrying; the support rod can be folded up when passing through stairs, steps, roadblocks and other road conditions without affecting passage; the shoulder strap and handrails are used to achieve quick conversion between dragging and carrying.

Description

Technical Field

[0001] The invention relates to a backpack that can increase load-bearing capacity and save labor, and belongs to the technical field of backpacks. Background Art

[0002] The existing backpacks are small in size and have a low load-bearing capacity, which cannot meet the needs of travel. The existing mountaineering bags are large in size and heavy in weight, which makes the users very tired and inconvenient to carry. With the aging population, the development and expansion of urban construction, people pay more attention to healthy life, and backpacking, tourism, and shopping are becoming more and more common. At present, traditional backpacks are limited in load-bearing capacity due to the physical strength and endurance of the backpackers. In complex urban environments, towing boxes that can carry more weight have poor passing ability on stairs, steps, roadblocks, and other road conditions, and are inconvenient to tow and carry. When the crowd is crowded, the towing box will cause inconvenience and obstacles to the surrounding pedestrians. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a backpack that increases load-bearing capacity while saving effort, and has the advantages of the convenience of a backpack and the large load-bearing capacity of a suitcase.

[0004] The present invention is achieved through the following technical scheme: a backpack that increases load-bearing capacity while saving effort, characterized in that it includes a backpack frame and a backpack bag, the backpack frame includes shoulder straps, a movable frame and a support rod, the shoulder straps are connected to the movable frame, the movable frame is connected to the support rod, the backpack bag is connected to the movable frame, rollers are provided at the bottom of the support rod, the support rod is a telescopic rod structure, and when the backpack is loaded, the rollers can be extended to the ground to roll to assist the backpack in loading.

[0005] The movable frame comprises a fixed end and a movable end, the shoulder strap is connected to the fixed end of the movable frame, the support rod is connected to the movable end, the fixed end and the movable end of the movable frame are fixedly connected by an elastic structure, and the movable end can elastically move on the fixed end.

[0006] The movable end of the movable frame is provided with a drawstring, on which a plurality of fixed protrusions are arranged, and the fixed protrusions can move left and right under the action of the drawstring, and the backpack bag is connected to the fixed protrusions at the movable end, and the movement of the drawstring can drive the backpack bag to move left and right.

[0007] The backpack bag is provided with a clamping slot matched with the fixed convex point, and the backpack bag is movably clamped on the fixed convex point through the clamping slot.

[0008] The support rod is fixed on the movable frame through a detachable socket. The support rod includes an upper connecting section and a lower telescopic section. The upper connecting section is provided with an elastic structure. The elastic structure and the lower telescopic section are connected through a torsion connecting joint. An operating armrest is provided on the torsion connecting joint. The operating armrest is connected to the lower telescopic section to control the telescopic section to be telescopic. The lower telescopic section is provided with a plurality of telescopic arms. The bottom of the lowest telescopic arm is fixedly connected to the roller.

[0009] The roller is controlled by operating the handrail to twist the connecting joint to rotate and change the moving direction.

[0010] The torsion joint is provided with a limit device, which limits the rotation of the torsion joint. The torsion joint is limited by the limit device to rotate within a semicircle in the forward direction. The roller is a one-way roller, which is set to move only in the forward direction.

[0011] The telescopic arm of the lower telescopic section is a structure combining a support rod and a pulley block. The telescopic arm is controlled by operating the support rod and the pulley block to control the telescopic arm to extend and retract.

[0012] The operating armrest is driven by a motor, a battery pack is arranged in the circular hollow lower telescopic section, and buttons are arranged on the operating armrest, which control the battery to drive the motor and then drive the telescopic movement.

[0013] The support rod is made of aluminum composite metal or carbon fiber material.

[0014] The beneficial effects of the present invention are: simple structure, easy to disassemble and assemble, a support rod is installed on the backpack frame, and rollers are installed at the bottom of the support rod to reduce fatigue caused by long-term carrying; the support rod can be folded up when passing through stairs, steps, roadblocks and other road conditions without affecting passage; and quick conversion between towing and carrying can be achieved through the shoulder straps and handrails. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a reference diagram of the use state of the present invention when carrying and walking;

[0017] Figure 2 is a reference diagram of the use state of the towing state of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the present invention;

[0019] Figure 4 It is a partial structural schematic diagram of the backpack frame of the present invention;

[0020] Figure 5 It is a schematic diagram of the detachable card holder structure of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the lower telescopic section of the support rod of the present invention. DETAILED DESCRIPTION

[0022] like Figure 1 A backpack with increased load-bearing capacity and labor-saving properties is shown, which is characterized by comprising a backpack frame 1 and a backpack bag 2, the backpack frame 1 comprising shoulder straps 3, a movable frame 4 and a support rod 5, the shoulder straps 3 are connected to the movable frame 4, the movable frame 4 is connected to the support rod 5, the backpack bag 2 is connected to the movable frame 4, and a roller 6 is provided at the bottom of the support rod 5, the support rod 5 is a telescopic rod structure, and when the backpack is loaded, the roller 6 can be extended to the ground to roll to assist the backpack in loading.

[0023] The movable frame 4 includes a fixed end 41 and a movable end 42, the shoulder strap 3 is connected to the fixed end 41 of the movable frame 4, the support rod 5 is connected to the movable end 42, the fixed end 41 and the movable end 42 of the movable frame 4 are fixedly connected by an elastic structure, and the movable end 42 can elastically move on the fixed end 41.

[0024] A pull rope 43 is provided inside the movable end 42 of the movable frame 4, and a plurality of fixed protrusions 44 are provided on the pull rope 43. The fixed protrusions 44 can move left and right under the action of the pull rope 43. The backpack bag 2 is connected to the fixed protrusions 44 of the movable end 42. Controlling the movement of the pull rope 43 can drive the backpack bag 2 to move left and right.

[0025] The backpack bag 2 is provided with a slot that matches the fixed protrusion 44 , and the backpack bag 2 is movably connected to the fixed protrusion 44 through the slot.

[0026] The support rod 5 is fixed to the movable frame 4 through a detachable socket 7. The support rod 5 includes an upper connecting section 51 and a lower telescopic section 52. The upper connecting section 51 is provided with an elastic structure 53. The elastic structure 53 and the lower telescopic section 52 are connected through a torsion connection joint 54. The torsion connection joint 54 is provided with an operating armrest 55. The operating armrest 55 is connected to the lower telescopic section 52 to control the lower telescopic section 52 to extend and retract. The lower telescopic section 52 is provided with a plurality of telescopic arms. The bottom of the lowest telescopic arm is fixedly connected to the roller 6.

[0027] The roller 6 controls the twisting connection section 54 to rotate and change the moving direction by operating the handrail 55.

[0028] The torsion joint 54 is provided with a limit device, which limits the rotation of the torsion joint 54. The torsion joint 54 is limited by the limit device to rotate within a semicircle in the forward direction. The roller 6 is a one-way roller, and the roller 6 is set to move only in the forward direction.

[0029] The telescopic arm of the lower telescopic section 52 is a structure combining a support rod and a pulley block. The telescopic arm is controlled by operating the armrest 55 to control the support rod and the pulley block to control the telescopic arm to extend and retract.

[0030] The operating armrest 55 is driven by a motor, a battery pack is arranged in the circular hollow lower telescopic section 52, and a button 56 is arranged on the operating armrest 55, and the button 56 controls the battery to drive the motor and then drives the telescopic movement.

[0031] The support rod 5 is made of aluminum composite metal or carbon fiber material.

[0032] When in use, if the backpack bag 2 is lightly loaded, you can choose to carry it on your back. If the backpack bag 2 is heavy, fix the support rod 5 to the movable frame 4 through the detachable holder 7, and then extend the support rod 5 to bear the weight of the backpack by operating the armrest 55, and adjust the backpack bag 2 to be biased towards the support rod 5 through the pull rope 43 to clamp and fix it.

[0033] The backpack bag 2 is designed to be detachable, so that it is convenient to replace it with a backpack bag of suitable size or personal preference at any time.

[0034] When the backpack 2 is in the carrying state, the weight is applied to the elastic structure of the movable frame 4. When the backpack 2 is in the dragging state, the support rod 5 rises to transfer most of the weight of the backpack 2 to the ground. The elastic structure is greatly reduced by the gravity and floats up, so that the supporting force does not affect the human body. In the dragging state, the strap 3 is attached to the human body. When the human body walks or jogs, the up and down movement space provided by the elastic structure prevents the up and down force of the human body from interfering with the backpack frame 1.

Claims

1. A backpack that increases load-bearing capacity while saving effort, characterized in that: The backpack frame (1) comprises a backpack bag (2), wherein the backpack frame (1) comprises a shoulder strap (3), a movable frame (4) and a support rod (5), wherein the shoulder strap (3) is connected to the movable frame (4), the movable frame (4) is connected to the support rod (5), the backpack bag (2) is connected to the movable frame (4), a roller (6) is provided at the bottom of the support rod (5), and the support rod (5) is a telescopic rod structure. When the backpack is loaded, the roller (6) can be extended to the ground to roll to assist the backpack in loading; the movable frame (4) comprises a fixed end (41) and a movable end (42), the shoulder strap (3) is connected to the fixed end (41) of the movable frame (4), and the movable end (42) is connected to the movable frame (4). The support rod (5) is connected to the movable end (42); the fixed end (41) and the movable end (42) of the movable frame (4) are fixedly connected by an elastic structure; the movable end (42) can elastically move on the fixed end (41); a pull rope (43) is provided inside the movable end (42) of the movable frame (4); a plurality of fixed protrusions (44) are provided on the pull rope (43); the fixed protrusions (44) can move left and right under the action of the pull rope (43); the backpack bag (2) is connected to the fixed protrusions (44) of the movable end (42); and the movement of the pull rope (43) can drive the backpack bag (2) to move left and right.

2. A backpack that increases load-bearing capacity and saves effort according to claim 1, characterized in that: The backpack bag (2) is provided with a clamping slot that cooperates with the fixed protrusion (44), and the backpack bag (2) is movably clamped on the fixed protrusion (44) through the clamping slot.

3. A backpack that increases load-bearing capacity and saves effort according to claim 1, characterized in that: The support rod (5) is fixed to the movable frame (4) via a detachable clamping seat (7). The support rod (5) comprises an upper connecting section (51) and a lower telescopic section (52). The upper connecting section (51) is provided with an elastic structure (53). The elastic structure (53) and the lower telescopic section (52) are connected via a twisting connection joint (54). The twisting connection joint (54) is provided with an operating handrail (55). The operating handrail (55) is connected to the lower telescopic section (52) to control the lower telescopic section (52) to be telescopic. The lower telescopic section (52) is provided with a plurality of telescopic arms. The bottom of the lowest telescopic arm is fixedly connected to the roller (6).

4. A backpack that increases load-bearing capacity and saves effort according to claim 3, characterized in that: The roller (6) is controlled by the operating armrest (55) to rotate the twisting connection joint (54) to change the direction of travel.

5. A backpack that increases load-bearing capacity and saves effort according to claim 4, characterized in that: The torsion connection joint (54) is provided with a limit device, which limits the rotation of the torsion connection joint (54). The torsion connection joint (54) is limited by the limit device to rotate within a semicircle in the forward direction. The roller (6) is a one-way roller, and the roller (6) is configured to move only in the forward direction.

6. A backpack that increases load-bearing capacity and saves effort according to claim 3, characterized in that: The telescopic arm of the lower telescopic section (52) is a structure combining a support rod and a pulley block, and the telescopic arm is controlled to extend and retract by operating the support rod and the pulley block through the operating handrail (55).

7. A backpack that increases load-bearing capacity and saves effort according to claim 3, characterized in that: The operating armrest (55) is driven by a motor, a battery pack is arranged in the circular hollow lower telescopic section (52), and a button (56) is arranged on the operating armrest (55), and the button (56) controls the battery to drive the motor and thus drive the telescopic movement.

8. The backpack for increasing load-bearing capacity and saving labor according to claim 1, characterized in that: The support rod (5) is made of aluminum composite metal or carbon fiber material.

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