Draw-bar box with draw-bar type turnover backrest structure

Abstract

The utility model discloses a draw-bar box with a draw-bar type turnover backrest structure, which comprises a box body, two first telescopic draw bars arranged on the back of the box body, a draw bar handle arranged between the upper ends of the two first telescopic draw bars, two second telescopic draw bars arranged inside the box body, and a turnover backrest arranged between the upper ends of the two second telescopic draw bars. The turnover type backrest comprises a backrest main plate and backrest side plates, the backrest side plates on the two sides of the backrest main plate are rotationally connected with the upper ends of the second telescopic pull rods of the backrest side plates through rotating connecting pieces respectively, when the turnover type backrest is used, a user can pull out the turnover type backrest to form a semi-enclosed backrest, and a child can sit on the turnover type backrest conveniently. The draw-bar type turnover backrest structure is adopted, use and storage are more convenient, front-back limiting can be achieved with the first telescopic draw bar, a child is prevented from falling off from the upper portion of the draw-bar box, the risk of rollover is avoided, the riding safety of the child is better guaranteed, the internal space of the box body cannot be affected, and the appearance attractiveness of the box body cannot be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage, and more specifically to a trolley case with a trolley-type flip backrest structure. Background Art

[0002] In order to make the trolley case have the function of children sitting, some trolley cases with backrests are now available on the market, such as a double-rod trolley case with patent authorization announcement number CN217658518U, which includes a case body, a first rod and a second rod, the first rod and the second rod are arranged in parallel at two symmetrical ends on the same plane of the case body, and the plane is formed with through holes for the first rod and the second rod to pass through respectively, when there are children accompanying, the second rod can provide back support. However, this type of double-rod trolley case has the following shortcomings: 1. The second rod and the second handle are fixed and cannot be turned over, and the second handle cannot form a semi-enclosed backrest structure, and there is a risk of rollover after the child sits on the top of the trolley case; 2. The upper end of the back of the case needs to be formed with a hollowed-out groove that is arranged to avoid the shape of the second handle. The area of ​​the hollowed-out groove is large and needs to be concavely formed, which will affect the internal space of the case and greatly reduce the aesthetics of the case. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and to provide a trolley case with a trolley-type flip backrest structure, which is convenient for children to sit in, does not have the risk of tipping over, is more conducive to ensuring the safety of children, is more convenient to use and store, does not affect the internal space of the case, and does not reduce the appearance of the case.

[0004] To achieve the above-mentioned purpose, the utility model provides a trolley case with a trolley-type flip backrest structure, comprising a case body, wherein two first telescopic pull rods which are parallel to each other and can be extended up and down are arranged on the back of the case body, a pull rod handle is arranged between the upper ends of the two first telescopic pull rods, moving wheels are arranged at the bottom corners of the case body, inlet and outlet through holes are arranged on both sides of the top of the case body, two second telescopic pull rods which are parallel to each other and can be extended up and down are arranged inside the case body, a flip backrest is arranged between the upper ends of the two second telescopic pull rods, and the flip backrest comprises a backrest main board and a backrest side board, and the backrest side board is connected to the backrest On both sides of the main board, the two backrest side panels are rotatably connected to the upper ends of the corresponding second telescopic rods through rotating connecting pieces, so that the flip-type backrest can be flipped relative to the second telescopic rod. When the second telescopic rod is retracted downward into the interior of the box, the two backrest side panels are inserted into the interior of the box through corresponding entry and exit holes. The backrest main board fits against the top of the box. When the second telescopic rod is extended upward, the upper ends of the two second telescopic rods are extended out of the top of the box through corresponding entry and exit holes. The flip-type backrest can be flipped downward toward the front of the box to form a semi-enclosed backrest structure.

[0005] Preferably, the first telescopic rod and the second telescopic rod are respectively configured as double-section telescopic rods.

[0006] Preferably, the rotating connecting member is configured as a knob, a bolt, a rivet or a rotating shaft.

[0007] Preferably, the backrest main board and the two backrest side boards are combined to form a U-shaped structure.

[0008] Preferably, a backrest placement shell is provided on the top of the box body, the inlet and outlet through holes are opened on both sides of the backrest placement shell, and the backrest placement shell is provided with a receiving groove for placing a backrest mainboard.

[0009] Preferably, the backrest placement shell is provided with a pulling groove for facilitating the user to pull up the flip-up backrest with his hands, and the pulling groove is located at the front and rear sides of the middle of the accommodating groove.

[0010] Preferably, the box body comprises a rear box body and a front box body, the rear box body is rotatably connected to the front box body, the front box body can be flipped open relative to the rear box body, and the second telescopic pull rod is located inside the rear box body.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The box body of the utility model is provided with two second telescopic pull rods which can be extended and retracted up and down, and a flip-up backrest is provided between the upper ends of the two second telescopic pull rods. When the flip-up backrest is not in use, the second telescopic pull rod can be retracted downward into the box body, and the two backrest side panels of the flip-up backrest can be inserted into the box body through the corresponding entry and exit through holes, and the backrest main board of the flip-up backrest can be attached to the top of the box body, which is convenient for storing the flip-up backrest. When the flip-up backrest needs to be used, the user can pull out the flip-up backrest. At this time, the flip-up backrest can be flipped downward toward the front direction of the box body to form a semi-enclosed backrest structure, which is convenient for children to sit on, and can also achieve front and rear limit with the first telescopic pull rod to prevent children from falling from the top of the trolley case, and there will be no risk of rollover, which is more conducive to ensuring the safety of children's riding. The utility model has a simple structure, reasonable design, and is more convenient to use. It will not affect the internal space of the box body and will not reduce the aesthetic appearance of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic structural diagram of a trolley case provided by an embodiment of the utility model when the flip backrest is not pulled out;

[0015] Figure 2 It is a schematic diagram of the internal structure of the trolley case provided by the embodiment of the utility model when the flip backrest is not pulled out;

[0016] Figure 3 It is a schematic structural diagram of a trolley case provided by an embodiment of the utility model when the flip backrest is pulled upward;

[0017] Figure 4 It is a structural schematic diagram of the trolley case provided by the embodiment of the utility model when the flip-type backrest is pulled out and flipped;

[0018] Figure 5 It is a schematic diagram of the internal structure of the trolley case provided by the embodiment of the utility model when the flip-type backrest is pulled out and flipped;

[0019] Figure 6 It is a structural schematic diagram of a backrest placement shell provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0021] Please refer to Figure 1 and Figure 2 An embodiment of the utility model provides a trolley case with a trolley-type flip backrest structure, comprising a case body 1, a first telescopic pull rod 2, a pull rod handle 3, a moving wheel 4, a second telescopic pull rod 6 and a flip backrest 7. The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0022] In this embodiment, the box body 1 may include a rear box body 11 and a front box body 12. The rear box body 11 may be rotatably connected to the front box body 12 via components such as hinges, zippers, connecting cloths or rotating shafts, and the front box body 11 may be flipped open relative to the rear box body 12.

[0023] like Figure 1 As shown, two first telescopic rods 2 are provided and are parallel to each other, and the two first telescopic rods 2 are both installed on the back of the rear box body 11 and can be telescoped up and down, and the rod handle 3 is connected between the upper ends of the two first telescopic rods 2. In specific implementation, the first telescopic rod 2 can be preferably set as various common double-section telescopic rods.

[0024] like Figure 1 As shown, the moving wheels 4 are respectively installed at the bottom corners of the rear box body 11 and the front box body 12.

[0025] like Figure 2 and Figure 3 As shown, two second telescopic rods 6 are provided and are parallel to each other. Both second telescopic rods 6 are installed inside the rear box body 11 and can be telescoped up and down. In specific implementation, the second telescopic rod 6 can also be preferably set as various common double-section telescopic rods. Among them, the upper section of the second telescopic rod 6 can pass through the top of the box body 1 when extended.

[0026] like Figures 1 to 4As shown, the flip-up backrest 7 is connected between the upper ends of the two second telescopic rods 6. The flip-up backrest 7 may include a backrest main board 71 and a backrest side panel 72. The backrest side panel 72 is connected to both sides of the backrest main board 71. The backrest main board 71 and the two backrest side panels 72 can be combined to form a U-shaped structure. The two backrest side panels 72 are rotatably connected to the upper ends of the second telescopic rods 6 respectively through the rotating connecting parts 8, so that the flip-up backrest 7 can be flipped relative to the second telescopic rod 6.

[0027] During specific implementation, the rotating connector 8 can be preferably configured as a knob, a bolt, a rivet, a rotating shaft or other connectors, which is not limited to this embodiment.

[0028] As a further improvement of this embodiment, Figure 1 , Figure 3 and Figure 6 As shown, a backrest placement shell 9 can also be provided on the top of the rear box body 11, and entry and exit through holes 90 for the second telescopic pull rod 6 and the backrest side panels 72 to enter and exit are opened on both sides of the backrest placement shell 9, and a receiving groove 91 for placing the backrest main board 71 is provided on the backrest placement shell 9.

[0029] In addition, the backrest shell 9 may be provided with a pulling groove 92 for facilitating the user to pull up the flip-type backrest 7 with his hands. The pulling groove 92 is located at the front and rear sides of the middle of the accommodating groove 91 .

[0030] The working principle of the trolley case is as follows:

[0031] like Figure 1 and Figure 2 As shown, when the flip-up backrest 7 is not in use, the second telescopic pull rod 6 can be retracted downward into the interior of the box body 1, and the two backrest side panels 72 can be inserted into the interior of the box body 1 through the corresponding inlet and outlet holes 90 of the backrest placement shell 9, and finally the backrest main board 71 can be attached to the top of the box body 1, so that the flip-up backrest can be stored conveniently.

[0032] like Figure 3 , Figure 4 and Figure 5 As shown, when the flip-up backrest 7 is needed, the user can pull the flip-up backrest 7 upwards, at which time the second telescopic rod 6 extends upwards, and the upper rod bodies of the two second telescopic rods 6 pass through the corresponding inlet and outlet holes 90 of the backrest placement shell 9 and extend out of the top of the box body 1. Then the flip-up backrest 7 can be flipped downward toward the front direction of the box body 1 to form a semi-enclosed backrest structure, which is more conducive to ensuring the safety of children's riding.

[0033] It should be noted that the second telescopic pull rod 6 and the flip-type backrest 7 in the present embodiment can also be applied to a trolley case with a front opening. In addition, in other embodiments, the case can also adopt an integrated case or a split case that can not be flipped open.

[0034] To sum up, the utility model has a simple structure and a reasonable design. It adopts a pull rod type flip backrest structure, which is convenient for children to sit on. It can also achieve front and rear limiting with the first telescopic pull rod to prevent children from falling from the top of the trolley case. There is no risk of rollover, which is more conducive to ensuring the safety of children's riding. It is also more convenient to use and store, will not affect the internal space of the box, and will not reduce the appearance of the box.

[0035] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A trolley case with a trolley-type flip backrest structure, comprising a case body, two first telescopic pull rods which are parallel to each other and can be telescoped up and down are arranged on the back of the case body, a pull rod handle is arranged between the upper ends of the two first telescopic pull rods, and moving wheels are arranged at the bottom corners of the case body, characterized in that: The top of the box body is provided with entry and exit through holes on both sides, and two second telescopic rods parallel to each other and capable of being extended and retracted up and down are provided inside the box body, and a flip backrest is provided between the upper ends of the two second telescopic rods, and the flip backrest comprises a backrest main board and a backrest side panel, and the backrest side panels are connected to both sides of the backrest main board, and the two backrest side panels are rotatably connected to the upper ends of the respective corresponding second telescopic rods through rotating connecting pieces, so that the flip backrest can be flipped relative to the second telescopic rod. When the second telescopic rod is retracted downward into the box body, the two backrest side panels are inserted into the box body through the corresponding entry and exit through holes, and the backrest main board is attached to the top of the box body, and when the second telescopic rod is extended upward, the upper ends of the two second telescopic rods are extended out of the top of the box body through the corresponding entry and exit through holes, and the flip backrest can be flipped downward toward the front direction of the box body to form a semi-enclosed backrest structure.

2. A trolley case with a trolley-type flip backrest structure according to claim 1, characterized in that: The first telescopic pull rod and the second telescopic pull rod are respectively configured as double-section telescopic pull rods.

3. The trolley case with a trolley-type flip backrest structure according to claim 1, characterized in that: The rotating connecting member is configured as a knob, a bolt, a rivet or a rotating shaft.

4. The trolley case with a trolley-type flip backrest structure according to claim 1, characterized in that: The backrest main plate and the two backrest side plates are combined to form a U-shaped structure.

5. The trolley case with a trolley-type flip backrest structure according to claim 1, characterized in that: A backrest placement shell is arranged on the top of the box body, the inlet and outlet through holes are arranged on two sides of the backrest placement shell, and an accommodating groove for placing a backrest mainboard is arranged on the backrest placement shell.

6. The trolley case with a trolley-type flip backrest structure according to claim 5, characterized in that: The backrest placement shell is provided with a pulling groove for facilitating the user to pull up the flip-type backrest with his hands, and the pulling groove is located at the front and rear sides of the middle part of the accommodating groove.

7. The trolley case with a trolley-type flip backrest structure according to claim 1, characterized in that: The box body comprises a rear box body and a front box body, the rear box body is rotatably connected to the front box body, the front box body can be flipped open relative to the rear box body, and the second telescopic pull rod is located inside the rear box body.

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