Backpack convenient to carry

Abstract

The utility model discloses a backpack convenient to carry, relates to the technical field of backpacks, and adopts the technical scheme that the backpack comprises a backpack body, straps are fixedly arranged on one side of the backpack body, a carrying belt is fixedly arranged at the top of the backpack body, and a sliding mechanism is arranged at the bottom of the backpack body; the sliding mechanism comprises a connecting plate, the top of the connecting plate is fixedly connected with the bottom of the backpack body, and two through grooves are formed in the connecting plate. When the pulleys are released out of the through grooves and the pulleys are in contact with the ground, the backpack body can slide on the ground like a luggage case, so that the backpack does not need to be carried or lifted by a user, the load burden of the user when the user uses the backpack body is reduced, the carrying mode can be switched among carrying, lifting and pulling, and the carrying mode of the backpack is controlled. The purpose of convenient carrying is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, and particularly relates to a backpack convenient to carry. Background Art

[0002] Backpacks are essential items for most people when going out. The materials are diverse, including genuine leather, plastic, polyester, canvas, nylon, cotton and linen texture suitcases. With the improvement of living standards, people have higher requirements for the functions of suitcases. At present, although backpacks have various shapes of designs, their internal spaces are also planned quite in line with the needs of use.

[0003] Existing backpacks usually only have the functions of carrying on the back and lifting by hand. When the backpack is heavily loaded, carrying on the back and lifting by hand are likely to cause shoulder and arm soreness to the user and easily cause a burden on the user. Therefore, a backpack convenient to carry is needed, which can make the backpack slide on the ground when the backpack is heavily loaded, facilitating the user to carry the backpack. Content of the Utility Model

[0004] For this reason, the utility model provides a backpack convenient to carry, through a sliding mechanism, to solve the problem that existing backpacks usually only have the functions of carrying on the back and lifting by hand, and when the backpack is heavily loaded, carrying on the back and lifting by hand are likely to cause shoulder and arm soreness to the user and easily cause a burden on the user.

[0005] To achieve the above object, the utility model provides the following technical solution: A backpack convenient to carry, including a backpack body, a shoulder strap is fixedly arranged on one side of the backpack body, a lifting strap is fixedly arranged on the top of the backpack body, and a sliding mechanism is arranged at the bottom of the backpack body;

[0006] The sliding mechanism includes a connecting plate, the top of the connecting plate is fixedly connected with the bottom of the backpack body, two through grooves are opened inside the connecting plate, a fixed groove plate is fixedly arranged inside the connecting plate, an adjusting component is arranged inside the connecting plate, the adjusting component includes a knob, a worm is fixedly arranged on the top of the knob, a worm gear is arranged on one side of the worm, the worm is meshed with the worm gear, a transmission rod is fixedly inserted inside the worm gear, and pulley retracting and releasing units are arranged at both ends of the transmission rod.

[0007] Preferably, the pulley retracting and releasing unit includes a bevel gear one, the bevel gear one is fixedly connected with the transmission rod, a bevel gear two is arranged on one side of the bevel gear one, the bevel gear one is meshed with the bevel gear two, a rotating rod is fixedly inserted inside the bevel gear two, two connecting sleeves are fixedly sleeved outside the rotating rod, and pulleys are arranged inside both of the two connecting sleeves.

[0008] Preferably, the bottom of the worm penetrates through the bottom of the connecting plate and is connected with the bottom of the connecting plate through a bearing, and the top of the worm penetrates through the top of the fixed groove plate and is connected with the top of the fixed groove plate through a bearing.

[0009] Preferably, the transmission rod penetrates through both side walls of the fixed groove plate and is connected to both side walls of the fixed groove plate through bearings.

[0010] Preferably, the rotating rod penetrates through the connecting plate and is connected to the connecting plate through a bearing.

[0011] Preferably, the connecting sleeve is arranged inside the through groove and is slidably connected to the through groove.

[0012] Preferably, the pulley is arranged inside the connecting sleeve and is movably connected to the connecting sleeve through a rotating shaft.

[0013] The embodiment of the present utility model has the following advantages:

[0014] By rotating the knob, the rotation of the knob drives the worm to drive the worm gear to rotate. The rotation of the worm gear drives the two bevel gears to rotate synchronously through the transmission rod. When the two bevel gears rotate, the two rotating rods rotate relatively through the two relatively arranged bevel gears. The rotation of the rotating rod drives the pulley to rotate through the connecting sleeve, thereby controlling the retraction and release of the two pulleys inside the through groove, achieving the purpose of controlling the carrying mode of the backpack body;

[0015] When the pulley is released outside the through groove, when the pulley contacts the ground, the backpack body can slide on the ground like a suitcase, so that the user does not need to carry or lift it, reducing the load burden on the user when using the backpack body. The carrying mode can be switched among carrying on the back, lifting, and pulling, achieving the purpose of convenient carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0017] The structures, ratios, sizes, etc. depicted in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present utility model can be implemented. Therefore, they do not have technical substance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model.

[0018] Figure 1 It is a three-dimensional view of the carrying state provided by the present utility model;

[0019] Figure 2 It is a three-dimensional view of the sliding state provided by the present utility model;

[0020] Figure 3 Stereogram of the connection relationship at the connecting plate provided by the present utility model;

[0021] Figure 4 Exploded stereogram of the connection relationship at the connecting plate provided by the present utility model;

[0022] Figure 5 Stereogram of the connection relationship at the transmission rod provided by the present utility model.

[0023] In the figure: 1 backpack body, 2 shoulder strap, 3 carrying handle, 4 connecting plate, 5 through groove, 6 fixed groove plate, 7 knob, 8 worm, 9 worm gear, 10 transmission rod, 11 first bevel gear, 12 second bevel gear, 13 rotating rod, 14 connecting sleeve, 15 pulley. Specific embodiments

[0024] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Referring to the attached Figure 1 - attached Figure 5 As shown in the figure, a backpack convenient to carry provided by the present utility model includes a backpack body 1. A shoulder strap 2 is fixedly arranged on one side of the backpack body 1. A carrying handle 3 is fixedly arranged on the top of the backpack body 1. A sliding mechanism is arranged at the bottom of the backpack body 1;

[0026] The sliding mechanism includes a connecting plate 4. The top of the connecting plate 4 is fixedly connected to the bottom of the backpack body 1. Two through grooves 5 are formed inside the connecting plate 4. A fixed groove plate 6 is fixedly arranged inside the connecting plate 4. An adjusting component is arranged inside the connecting plate 4. The adjusting component includes a knob 7. A worm 8 is fixedly arranged on the top of the knob 7. A worm gear 9 is arranged on one side of the worm 8. The worm 8 is meshed with the worm gear 9. A transmission rod 10 is fixedly inserted inside the worm gear 9. Pulley retracting and releasing units are arranged at both ends of the transmission rod 10;

[0027] In this implementation, to achieve the purpose that the backpack body 1 can slide, when the backpack body 1 slides, rotate the knob 7. The rotation of the knob 7 drives the worm wheel 9 to rotate through the worm 8. The rotation of the worm wheel 9 causes the two bevel gears one 11 to rotate synchronously through the transmission rod 10. Further, the pulleys 15 in the two pulley retraction and extension units are released from the through groove 5. When the pulley 15 is released outside the through groove 5 and contacts the ground, the backpack body 1 can slide on the ground like a suitcase, so that the user does not need to carry or lift it on the back, reducing the load burden on the user when using the backpack body 1. The carrying method can be switched among carrying on the back, lifting, and pulling, achieving the purpose of convenient carrying.

[0028] Among them, to achieve the purpose of synchronously retracting and extending the two pulleys 15, the following technical solution is adopted in this device: The pulley retraction and extension unit includes a bevel gear one 11. The bevel gear one 11 is fixedly connected to the transmission rod 10. A bevel gear two 12 is provided on one side of the bevel gear one 11. The bevel gear one 11 meshes with the bevel gear two 12. A rotating rod 13 is fixedly inserted inside the bevel gear two 12. Two connecting sleeves 14 are fixedly sleeved outside the rotating rod 13. Pulleys 15 are provided inside both of the two connecting sleeves 14. The rotating rod 13 penetrates through the connecting plate 4 and is connected to the connecting plate 4 through a bearing. The connecting sleeve 14 is arranged inside the through groove 5 and is slidably connected to the through groove 5. The pulley 15 is arranged inside the connecting sleeve 14 and is movably connected to the connecting sleeve 14 through a rotating shaft. When the two bevel gears one 11 rotate, the two rotating rods 13 rotate relatively through the two relatively arranged bevel gears two 12. The rotation of the rotating rod 13 drives the pulley 15 to rotate through the connecting sleeve 14, thereby controlling the retraction and extension of the two pulleys 15 inside the through groove 5.

[0029] Among them, to achieve the purpose of preventing the pulley 15 from automatically retracting into the through groove 5, the following technical solution is adopted in this device: The bottom of the worm 8 penetrates through the bottom of the connecting plate 4 and is connected to the bottom of the connecting plate 4 through a bearing. The top of the worm 8 penetrates through the top of the fixed groove plate 6 and is connected to the top of the fixed groove plate 6 through a bearing. The transmission rod 10 penetrates through the two side walls of the fixed groove plate 6 and is connected to the two side walls of the fixed groove plate 6 through bearings. Through the one-way driving mode of the worm 8 and the worm wheel 9, the worm wheel 9 cannot rotate naturally, and further the pulley 15 cannot retract into the through groove 5 naturally. Thus, when the backpack body 1 slides through the pulley 15, the pulley 15 is always in the released state, improving the stability during use.

[0030] The usage process of the present utility model is as follows: When it is necessary for the backpack body 1 to slide during the use of the present utility model, rotate the knob 7. The rotation of the knob 7 drives the worm wheel 9 to rotate through the worm 8. The rotation of the worm wheel 9 causes the two first bevel gears 11 to rotate synchronously through the transmission rod 10. When the two first bevel gears 11 rotate, the two second bevel gears 12 arranged oppositely cause the two rotating rods 13 to rotate relatively. The rotation of the rotating rods 13 drives the pulleys 15 to rotate through the connecting sleeves 14, thereby controlling the retraction and extension of the two pulleys 15 inside the through groove 5. When the pulleys 15 extend out of the through groove 5 and come into contact with the ground, the backpack body 1 can slide on the ground like a suitcase, so that there is no need for the user to carry or lift it, reducing the load burden on the user when using the backpack body 1. The carrying method can be switched among carrying on the back, lifting, and pulling, achieving the purpose of being convenient to carry.

[0031] The above is only the preferred embodiment of the present utility model. Any person skilled in the art may modify the present utility model by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present utility model falls within the scope of protection required by the present utility model.

Claims

1. A portable backpack, comprising a backpack body (1), characterized in that: One side of the backpack body (1) is fixedly provided with a shoulder strap (2), the top of the backpack body (1) is fixedly provided with a carrying handle (3), and a sliding mechanism is arranged at the bottom of the backpack body (1). The sliding mechanism includes a connecting plate (4). The top of the connecting plate (4) is fixedly connected to the bottom of the backpack body (1). Two through grooves (5) are formed inside the connecting plate (4). A fixed groove plate (6) is fixedly arranged inside the connecting plate (4). An adjusting component is arranged inside the connecting plate (4). The adjusting component includes a knob (7). A worm (8) is fixedly arranged at the top of the knob (7). A worm gear (9) is arranged on one side of the worm (8). The worm (8) is meshed with the worm gear (9). A transmission rod (10) is fixedly inserted inside the worm gear (9). Pulley retracting and releasing units are arranged at both ends of the transmission rod (10).

2. The portable backpack according to claim 1, characterized in that: The pulley retracting and releasing unit includes a first bevel gear (11). The first bevel gear (11) is fixedly connected to the transmission rod (10). A second bevel gear (12) is arranged on one side of the first bevel gear (11). The first bevel gear (11) is meshed with the second bevel gear (12). A rotating rod (13) is fixedly inserted inside the second bevel gear (12). Two connecting sleeves (14) are fixedly sleeved outside the rotating rod (13). Pulleys (15) are arranged inside both of the two connecting sleeves (14).

3. The portable backpack according to claim 1, characterized in that: The bottom of the worm (8) penetrates through the bottom of the connecting plate (4) and is connected to the bottom of the connecting plate (4) through a bearing. The top of the worm (8) penetrates through the top of the fixed groove plate (6) and is connected to the top of the fixed groove plate (6) through a bearing.

4. A portable backpack according to claim 1, characterized in that: The transmission rod (10) penetrates through both side walls of the fixed groove plate (6) and is connected to both side walls of the fixed groove plate (6) through bearings.

5. The portable backpack according to claim 2, wherein: The rotating rod (13) penetrates through the connecting plate (4) and is connected to the connecting plate (4) through a bearing.

6. The convenient backpack according to claim 2, wherein: The connecting sleeve (14) is arranged inside the through groove (5) and is slidably connected to the through groove (5).

7. The portable backpack according to claim 2, wherein: The pulley (15) is arranged inside the connecting sleeve (14) and is movably connected to the connecting sleeve (14) through a rotating shaft.

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