Anti-scratch knapsack draw-bar box

Abstract

The utility model discloses an anti-scratch knapsack draw-bar box, which relates to the technical field of knapsacks, and adopts the scheme that the anti-scratch knapsack draw-bar box comprises a base, a cushion is fixedly connected to one side of the upper surface of the base, a knapsack body is fixedly connected between the upper surface of the base and the cushion, and a protective pad is fixedly connected between the cushion and the outer surface of the base. Two lifting moving mechanisms are symmetrically installed on the lower surface of the base, a shielding mechanism matched with the lifting moving mechanisms is installed on the lower surface of the base, the moving wheels can be stored when the moving wheels are not used, the bottom of a storage groove is sealed and shielded through a shielding plate, and impurities, water drops and the like are prevented from falling off; and when not in use, the pull rod body can be taken down from the threaded hole, and at the moment, no pull rod body exists in the buffer cushion, so that the hardness of the buffer cushion can be reduced, the use comfort in the backpack state is improved, and the back of a user is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, in particular to a scratch-resistant backpack trolley case. Background Art

[0002] Backpack refers to a general term for bags carried on the back when going out or marching. Currently, many backpacks are equipped with pull rods. When carrying more and heavier items, the pull rod can be used to drag instead of carrying them to reduce the walking weight. After searching, the Chinese patent announcement number CN219762722U discloses a concealable backpack pull rod, including a bag body, both sides of the bag body are provided with cavities, the interiors of the two cavities are slidably connected with positioning rods, and the interiors of the two positioning rods are provided with a plurality of slots, and the middle part of the bag body is provided with an accommodating channel, the interior sides of the accommodating channel are slidably connected with moving plates, the outer sides of the two moving plates are fixedly connected with sliders, and the sides of the two moving plates that are away from each other are fixedly connected with positioning columns.

[0003] Although the above technical solution can adjust the length of the positioning rod, so that the user can adjust it according to their own needs and return the universal wheel from the use position to the storage position, effectively preventing the roller from dirtying the clothes, but in actual use, the universal wheel is often sticky with various impurities and water stains. When carrying the backpack, water and impurities will drip, and due to inertia, they will fall on the user's clothes, causing certain impacts. In addition, the fixed installation of the positioning rod in the backpack will increase the hardness of the back of the backpack, thereby causing scratches on the user's back. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a scratch-resistant backpack trolley case, which solves the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an anti-scratch backpack trolley case, comprising a base, a buffer pad is fixedly connected to one side of the upper surface of the base, a backpack body is fixedly connected between the upper surface of the base and the buffer pad, a protective pad is fixedly connected between the buffer pad and the outer surface of the base, two lifting and moving mechanisms are symmetrically installed on the lower surface of the base, a shielding mechanism matched with the lifting and moving mechanism is installed on the lower surface of the base, and a pull rod body is threadedly connected to the upper surface of the base;

[0006] The lifting and moving mechanism comprises a receiving groove arranged on the lower surface of the base, a sliding block is slidably connected inside the receiving groove, and a moving wheel is fixedly installed at the bottom end of the sliding block.

[0007] Preferably, a lifting groove is opened on one side of the inner wall of the storage groove, and a first motor is embedded and fixedly installed in the inner top of the lifting groove, the output shaft of the first motor is fixedly connected to a first screw rod, the outer surface of the first screw rod is threadedly connected to a lifting plate that is slidably connected to the inner wall of the lifting groove, and one end of the lifting plate is fixedly connected to the top of the slider, so as to automatically drive the moving wheel to lift and lower, thereby reducing the workload.

[0008] Preferably, the shielding mechanism includes a long groove penetrating through the outer surface of the base, the long groove penetrating the storage groove, a second motor is embedded and fixedly installed on one side of the inner wall of the long groove, the output shaft of the second motor is fixedly connected to a second screw rod, and the outer surface of the second screw rod is threadedly connected to a shielding plate, which can shield the moving wheel to prevent impurities and water droplets from dripping.

[0009] Preferably, the pull rod body comprises a telescopic rod, the top end of the telescopic rod is fixedly connected to a cross bar, and the upper surface of the base is provided with a threaded hole threadedly connected to the bottom end of the telescopic rod, so as to facilitate installation and disassembly of the pull rod body.

[0010] Preferably, the outer surface of the buffer pad is provided with a mounting hole matched with the telescopic rod, so as to facilitate the installation of the pull rod body.

[0011] Preferably, two shoulder straps are symmetrically fixedly connected to one side of the outer surface of the protective pad to facilitate carrying a backpack.

[0012] The utility model provides a scratch-resistant backpack trolley case, which has the following beneficial effects:

[0013] 1. The anti-scratch backpack trolley case can store the moving wheels when not in use through the provided lifting and moving mechanism and the shielding mechanism, and the bottom of the storage groove can be sealed and shielded by the shielding plate to prevent impurities and water droplets from falling, thereby improving practicality, thereby solving the problem that the existing trolley backpack can store the universal wheels but cannot block impurities and water droplets, which easily makes clothes dirty.

[0014] 2. The anti-scratch backpack trolley case can be removed from the threaded hole through the trolley body when not in use. At this time, the trolley body does not exist in the buffer pad, which can reduce the hardness of the buffer pad, thereby improving the comfort of use when the backpack is in the state, avoiding scratches on the user's back, thereby solving the problem that the trolley of the existing trolley backpack is fixedly installed in the backpack, which increases the hardness of the back of the backpack and causes scratches on the user's back. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2This is a schematic structural diagram of the utility model from another angle;

[0017] Figure 3 This is a schematic diagram of the internal structure of the base of the utility model;

[0018] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0019] Figure 5 It is a structural schematic diagram of the pull rod pump body of the utility model.

[0020] In the figure, 1. base; 2. buffer pad; 3. backpack body; 4. protective pad; 5. lifting and moving mechanism; 51. storage slot; 52. slider; 53. moving wheel; 54. lifting slot; 55. first motor; 56. first screw rod; 57. lifting plate; 6. shielding mechanism; 61. long slot; 62. second motor; 63. second screw rod; 64. shielding plate; 7. pull rod body; 71. telescopic rod; 72. cross bar; 73. threaded hole; 74. mounting hole; 8. shoulder strap. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0022] like Figures 1 to 4As shown, a scratch-resistant backpack trolley case includes a base 1, a cushion pad 2 is fixedly connected to one side of the upper surface of the base 1, a backpack body 3 is fixedly connected between the upper surface of the base 1 and the cushion pad 2, a protective pad 4 is fixedly connected between the cushion pad 2 and the outer surface of the base 1, and two shoulder straps 8 are symmetrically fixedly connected to one side of the outer surface of the protective pad 4. Two lifting and moving mechanisms 5 are symmetrically installed on the lower surface of the base 1, and a shielding mechanism 6 matched with the lifting and moving mechanism 5 is installed on the lower surface of the base 1. The lifting and moving mechanism 5 includes a storage groove 51 opened on the lower surface of the base 1, and a slider 52 is slidably connected inside the storage groove 51, and a moving wheel 53 is fixedly installed at the bottom end of the slider 52. A lifting groove 54 is provided on one side of the inner wall of the storage groove 51, and a first motor 55 is embedded and fixedly installed on the inner top of the lifting groove 54. A first screw rod 56 is fixedly connected to the output shaft of the first motor 55, and a lifting plate 57 is threadedly connected to the inner wall of the lifting groove 54 on the outer surface of the first screw rod 56, and one end of the lifting plate 57 is fixedly connected to the top of the slider 52. The shielding mechanism 6 includes a long groove 61 that penetrates and is provided on the outer surface of the base 1, and the long groove 61 penetrates the storage groove 51. A second motor 62 is embedded and fixedly installed on one side of the inner wall of the long groove 61, and a second screw rod 63 is fixedly connected to the output shaft of the second motor 62, and a shielding plate 64 is threadedly connected to the outer surface of the second screw rod 63. When the moving wheel 53 is not in use, the first motor 55 rotates to drive the first screw rod 56 to rotate, and drives the lifting plate 57 to move upward through the thread, thereby driving the moving wheel 53 to move upward and store the moving wheel 53. The second motor 62 rotates to drive the second screw rod 63 to rotate, and drives the shielding plate 64 to move through the thread and seal the bottom of the storage groove 51 to prevent impurities and water droplets from falling, thereby improving practicality, thereby solving the problem that the existing trolley backpack can store the universal wheel but cannot block impurities and water droplets, which easily makes clothes dirty. Example 2

[0023] like Figure 1 , Figure 3 and Figure 5 As shown, the upper surface of the base 1 is threadedly connected with a pull rod body 7, and the pull rod body 7 includes a telescopic rod 71, and the top of the telescopic rod 71 is fixedly connected with a cross bar 72, and the upper surface of the base 1 is provided with a threaded hole 73 threadedly connected with the bottom end of the telescopic rod 71. The outer surface of the buffer pad 2 is provided with a mounting hole 74 matched with the telescopic rod 71.

[0024] When the pull rod body 7 is not in use, the pull rod body 7 can be rotated and removed from the threaded hole 73 through the thread. Then the pull rod body 7 can be retracted into the backpack body 3. At this time, there is no pull rod body 7 in the buffer pad 2, which can reduce the hardness of the buffer pad 2, thereby improving the comfort of use when the backpack is in the state of scratching the user's back, thereby solving the problem that the pull rod of the existing trolley backpack is fixedly installed in the backpack, which increases the hardness of the back of the backpack and causes scratches on the user's back.

[0025] Working principle: when the moving wheel 53 is not in use, the first motor 55 rotates to drive the first screw rod 56 to rotate, and drives the lifting plate 57 to move upward through the thread, thereby driving the moving wheel 53 to move upward and store the moving wheel 53; the second motor 62 rotates to drive the second screw rod 63 to rotate, and drives the shielding plate 64 to move through the thread and seal the bottom of the storage groove 51 to prevent impurities and water droplets from falling, thereby improving practicality, thereby solving the problem that the existing trolley backpack can store the universal wheel but cannot block impurities and water droplets, which easily makes clothes dirty.

[0026] At the same time, when the pull rod body 7 is not in use, the pull rod body 7 can be rotated and removed from the threaded hole 73 through the thread. Then the pull rod body 7 can be retracted into the backpack body 3. At this time, there is no pull rod body 7 in the buffer pad 2, which can reduce the hardness of the buffer pad 2, thereby improving the comfort of use when the backpack is in the state of scratching the user's back, thereby solving the problem that the pull rod of the existing trolley backpack is fixedly installed in the backpack, which increases the hardness of the back of the backpack and causes scratches on the user's back.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A scratch-resistant backpack trolley case, comprising a base (1), characterized in that: A buffer pad (2) is fixedly connected to one side of the upper surface of the base (1); a backpack body (3) is fixedly connected between the upper surface of the base (1) and the buffer pad (2); a protective pad (4) is fixedly connected between the buffer pad (2) and the outer surface of the base (1); two lifting and moving mechanisms (5) are symmetrically mounted on the lower surface of the base (1); a shielding mechanism (6) matched with the lifting and moving mechanisms (5) is mounted on the lower surface of the base (1); and a pull rod body (7) is threadedly connected to the upper surface of the base (1); The lifting and moving mechanism (5) comprises a storage groove (51) provided on the lower surface of the base (1), a slider (52) being slidably connected inside the storage groove (51), and a moving wheel (53) being fixedly mounted on the bottom end of the slider (52).

2. The scratch-resistant backpack trolley case according to claim 1, characterized in that: A lifting groove (54) is provided on one side of the inner wall of the storage groove (51); a first motor (55) is embedded and fixedly installed in the inner top of the lifting groove (54); an output shaft of the first motor (55) is fixedly connected to a first screw rod (56); an outer surface of the first screw rod (56) is threadedly connected to a lifting plate (57) slidably connected to the inner wall of the lifting groove (54); one end of the lifting plate (57) is fixedly connected to the top of the slider (52).

3. The scratch-resistant backpack trolley case according to claim 1, characterized in that: The shielding mechanism (6) comprises a long groove (61) extending through the outer surface of the base (1), the long groove (61) extending through the storage groove (51), a second motor (62) being embedded and fixedly mounted on one side of the inner wall of the long groove (61), a second screw rod (63) being fixedly connected to the output shaft of the second motor (62), and a shielding plate (64) being threadedly connected to the outer surface of the second screw rod (63).

4. The scratch-resistant backpack trolley case according to claim 1, characterized in that: The pull rod body (7) comprises a telescopic rod (71), the top end of the telescopic rod (71) is fixedly connected to a cross bar (72), and the upper surface of the base (1) is provided with a threaded hole (73) threadedly connected to the bottom end of the telescopic rod (71).

5. The scratch-resistant backpack trolley case according to claim 4, characterized in that: The outer surface of the buffer pad (2) is provided with a mounting hole (74) that matches the telescopic rod (71).

6. The scratch-resistant backpack trolley case according to claim 1, characterized in that: Two shoulder straps (8) are symmetrically fixedly connected to one side of the outer surface of the protective pad (4).

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