Draw bar structure of trolley backpack

Abstract

The utility model relates to the technical field of draw-bar backpacks, in particular to a draw bar structure of a draw-bar backpack, which comprises a backpack main body, a draw bar bottom plate is arranged at the bottom of the backpack main body, a draw bar main body is inserted and assembled on the front side of the draw bar bottom plate, and a draw bar slot corresponding to the draw bar main body is arranged in the center of the front end of the draw bar bottom plate. A pull rod containing hole corresponding to the pull rod body is formed in the front side of the pull rod bottom plate, moving wheels with locks are assembled at the bottom of the pull rod bottom plate, and an assembly bottom buckle frame corresponding to the moving wheels with the locks is fixedly arranged at the bottom of the pull rod bottom plate. Combination assembly and auxiliary storage and hiding can be conveniently carried out in the using process, and using is more convenient, faster and more efficient.

Description

Technical Field

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

[0002] Backpack refers to the bag carried on the back. The material is diversified. Bags made of leather, plastic, polyester, canvas, nylon, cotton and linen lead the fashion trend. In order to save effort, sometimes when carrying heavy objects, it is very tiring to carry them on the back. At this time, you need to rely on the pull rod and the moving wheels to assist in forming a hand-pulled box to pull it forward to save effort.

[0003] In this regard, China's patent application number: CN202321200220.X discloses a rod structure for a trolley backpack and a trolley backpack, wherein the rod structure for a trolley backpack includes a bracket and a rod mounted on the bracket, the bracket is formed with a cavity surrounded by a front plate, a back plate, a bottom plate, side plates and a rod frame, and the backpack body is located in the cavity; the rod frame is a U-shaped structure formed by the upward extension of the side plates, and the top of the U-shaped structure is concave to form a storage groove, and the rod is stored in the storage groove. In the technical solution of the utility model, the semi-enclosed bracket can play a role in preventing collision and scratching when the trolley backpack is towed on an uneven ground, and is also easier to clean and maintain;

[0004] However, the back of the existing pull rod is inconvenient to be assembled and hidden during use, which affects the convenience of subsequent use;

[0005] Therefore, in order to solve the above problems, a pull rod structure of a pull rod backpack is proposed. Utility Model Content

[0006] The utility model aims to provide a trolley structure for a trolley backpack, so as to solve the problem in the above background technology that the back of the existing trolley is inconvenient to assemble and assist in storage and hiding during use, which affects the convenience of subsequent use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trolley structure of a trolley backpack, comprising a backpack main body, a trolley base plate is arranged at the bottom of the backpack main body, the trolley body is inserted and assembled on the front side of the trolley base plate, a trolley slot corresponding to the trolley body is opened in the center of the front end of the trolley base plate, a trolley storage hole corresponding to the trolley body is opened inside the front side of the trolley base plate, a locking moving wheel is assembled on the bottom of the trolley base plate, and an assembly bottom buckle frame corresponding to the locking moving wheel is fixedly arranged on the bottom of the trolley base plate.

[0008] Preferably, supporting bottom ribs are fixed in the center and on both sides of the bottom of the pull rod base plate, and straps are buckled on the outside of the supporting bottom ribs. One end of the strap is fixed to the bottom of the backpack body, and the other end of the strap is clamped with a buckle, and the buckle is fixed to the bottom of the backpack body. A hook strap is fixed to the front surface of the pull rod base plate, and barbs corresponding to the hook straps are sewn on the bottom of the front side of the backpack body, and the barbs are connected to the inside of the hook straps.

[0009] Preferably, a buckle inner plate is fixed on the top of the lockable moving wheel, the buckle inner plate is clamped inside the assembly bottom buckle frame, an inner gasket is glued to the inner wall of the assembly bottom buckle frame, and an inner clamping protrusion is fixed on the outer end surface of the assembly bottom buckle frame.

[0010] Preferably, a pull rod lower locking pin is installed at the joint between the bottom of the front side of the pull rod base plate and the pull rod body, the pull rod lower locking pin is threadedly connected to the inside of the front side of the pull rod base plate, a locking pin torsion ring is fixed to the outer end of the pull rod lower locking pin, and a locking pin groove corresponding to the pull rod lower locking pin is opened on the outer wall of the front side of the pull rod base plate.

[0011] Preferably, a pull rod inner tube is inserted into the pull rod body, a pull rod inner core is inserted into the pull rod inner tube, telescopic locking pins are threadedly inserted into the upper part of the pull rod body and the upper part of the pull rod inner tube, auxiliary locking pins are also inserted into the upper part of the pull rod inner tube and the upper part of the pull rod inner core, a handle is installed on the top of the pull rod inner core, and sockets corresponding to the telescopic locking pin and the auxiliary locking pin are opened at the bottom of the pull rod inner tube and the pull rod inner core.

[0012] Preferably, auxiliary sockets are fixed on both sides of the pull rod body, auxiliary cross bars are threadedly inserted on both sides of the auxiliary sockets, the outside of the auxiliary cross bar is wrapped with an auxiliary back buckle strap, the auxiliary back buckle strap is sewn on the front surface of the backpack body, and an auxiliary storage hole corresponding to the auxiliary cross bar is opened on one side of the front side of the pull rod bottom plate close to the pull rod storage hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model is easy to assemble and assist in storage and hiding during use, making the use more convenient and efficient;

[0014] 1. The utility model is provided with a drawbar bottom plate and a drawbar body. With the drawbar slot and the drawbar storage hole, it is convenient to assemble and pull the drawbar through the drawbar slot when in use, and to store and hide the drawbar through the drawbar storage hole when not in use, making it more convenient to use. Through this design, the convenience and practicality of the drawbar structure of the drawbar backpack are improved.

[0015] 2. The utility model is provided with a locking moving wheel and an assembly bottom buckle frame, which facilitates the insertion and assembly of the pull rod bottom plate. When in use, it is locked by assembling the bottom buckle frame. When not in use, the locking moving wheel can be disassembled for easy storage, making it more convenient to use. Through this design, the convenience and practicality of the pull rod structure of the pull rod backpack are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic side cross-sectional view of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model;

[0018] Figure 3 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 4 For this utility model Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0020] Figure 5 For this utility model Figure 1 A magnified schematic diagram of the structure at C in the middle;

[0021] Figure 6 For this utility model Figure 2 A magnified schematic diagram of the structure at D in the middle;

[0022] In the figure: 100, backpack body; 101, hook strap; 102, barb; 110, supporting bottom rib; 111, strap; 112, buckle; 200, pull rod bottom plate; 201, pull rod slot; 202, pull rod storage hole; 203, auxiliary storage hole; 210, pull rod body; 211, pull rod inner tube; 212, pull rod inner core; 213, telescopic locking pin; 214, auxiliary locking pin; 215, handle; 216, socket; 220, pull rod lower locking pin; 221, locking pin twist ring; 222, locking pin groove; 230, auxiliary socket; 231, auxiliary cross bar; 232, auxiliary back buckle belt; 300, locking moving wheel; 301, buckle inner plate; 310, assembly bottom buckle frame; 311, inner gasket; 312, inner buckle protrusion. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-6 , an embodiment provided by the utility model:

[0025] A trolley structure of a trolley backpack, comprising a backpack body 100, a trolley bottom plate 200 is arranged at the bottom of the backpack body 100, a trolley body 210 is inserted and assembled on the front side of the trolley bottom plate 200, a trolley slot 201 corresponding to the trolley body 210 is opened in the center of the front end of the trolley bottom plate 200, a trolley storage hole 202 corresponding to the trolley body 210 is opened inside the front side of the trolley bottom plate 200, a locking moving wheel 300 is assembled at the bottom of the trolley bottom plate 200, and an assembly bottom buckle frame 310 corresponding to the locking moving wheel 300 is fixed at the bottom of the trolley bottom plate 200;

[0026] Further, support bottom ribs 110 are fixed at the center and both sides of the bottom of the pull rod bottom plate 200, and a strap 111 is buckled on the outside of the support bottom rib 110. One end of the strap 111 is fixed to the bottom of the backpack body 100, and the other end of the strap 111 is clamped with a buckle 112, and the buckle 112 is fixed to the bottom of the backpack body 100. A hook belt 101 is fixed to the front surface of the pull rod bottom plate 200, and a barb 102 corresponding to the hook belt 101 is sewn on the bottom of the front side of the backpack body 100. The barb 102 is hooked inside the hook belt 101. Through this design, it is convenient to place the backpack body 100 for auxiliary tying, making it more convenient and stable to use, and also convenient to disassemble;

[0027] Furthermore, a buckle inner plate 301 is fixed on the top of the locking moving wheel 300, and the buckle inner plate 301 is clamped inside the assembly bottom buckle frame 310. An inner gasket 311 is glued to the inner wall of the assembly bottom buckle frame 310, and an inner clamping protrusion 312 is fixed on the outer end surface of the assembly bottom buckle frame 310. Through this design, it is easy to assemble and disassemble the locking moving wheel 300, making it more convenient to use.

[0028] Furthermore, a lower locking pin 220 is installed at the joint between the front bottom of the pull rod base plate 200 and the pull rod body 210. The lower locking pin 220 is threadedly connected to the front inner side of the pull rod base plate 200. A locking pin twisting ring 221 is fixed to the outer end of the lower locking pin 220. A locking pin groove 222 corresponding to the lower locking pin 220 is provided on the outer wall of the front side of the pull rod base plate 200. This design facilitates the tightening and disassembly of the limit assembly at the bottom of the pull rod body 210.

[0029] Furthermore, a rod inner tube 211 is inserted into the rod body 210, a rod inner core 212 is inserted into the rod inner tube 211, a telescopic lock pin 213 is threadedly inserted into the upper part of the rod body 210 and the upper part of the rod inner tube 211, an auxiliary lock pin 214 is also inserted into the upper part of the rod inner tube 211 and the upper part of the rod inner core 212, a handle 215 is installed on the top of the rod inner core 212, and a socket 216 corresponding to the telescopic lock pin 213 and the auxiliary lock pin 214 is opened at the bottom of the rod inner tube 211 and the rod inner core 212. Through this design, it is convenient to limit the expansion and tightening of the rod body 210;

[0030] Furthermore, auxiliary sockets 230 are fixedly provided on both sides of the pull rod body 210, and auxiliary cross bars 231 are threadedly inserted on both sides of the auxiliary sockets 230. The outside of the auxiliary cross bar 231 is wrapped with an auxiliary back buckle strap 232, and the auxiliary back buckle strap 232 is sewn on the front surface of the backpack body 100. An auxiliary storage hole 203 corresponding to the auxiliary cross bar 231 is opened on one side of the front side of the pull rod bottom plate 200 near the pull rod storage hole 202. Through this design, it is convenient to auxiliary fix the front side of the backpack body 100 and the pull rod body 210, so as to maintain stability during pushing and pulling.

[0031] Working principle: When in use, the bottom buckle frame 310 is assembled and the locking moving wheel 300 is installed in cooperation with the inner gasket 311 and the inner locking protrusion 312 to facilitate the movement of the auxiliary pull rod bottom plate 200, and then the backpack body 100 is assisted in assembly and placement with the cooperation of the hook belt 101 and the barb 102. Further, with the cooperation of the supporting bottom rib 110 and the strap 111, the buckle 112 is used to assist in tying and fastening, so as to facilitate the fixation of the bottom of the backpack body 100. Further, with the cooperation of the pull rod slot 201, the pull rod body 210 is inserted and assembled, and is inserted and fastened by the lower locking pin 220 of the pull rod for subsequent use. Then, with the cooperation of the auxiliary socket 230, the front side of the backpack body 100 is assisted in limiting by the cooperation of the auxiliary cross bar 231 and the auxiliary back buckle belt 232. , so that the backpack body 100 can be pushed and pulled through the pull rod body 210 with the cooperation of the pull rod base plate 200 and the locked moving wheel 300. When in use, the pull rod inner tube 211 and the pull rod inner core 212 can be used for expansion under the limit insertion of the telescopic locking pin 213 and the auxiliary locking pin 214. After use, the pull rod body 210 can be easily disassembled and stored by unscrewing the pull rod lower locking pin 220. With the cooperation of the pull rod storage hole 202, the pull rod body 210 can be easily stored. Similarly, with the cooperation of the auxiliary storage hole 203, the auxiliary cross bar 231 can be easily stored. Subsequently, auxiliary disassembly is carried out with the cooperation of the hook belt 101 and the strap 111, and the backpack body 100 is separated from the pull rod base plate 200, which is convenient for the separate use of the back, making it more convenient to use. The operation ends here.

[0032] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A trolley structure of a trolley backpack, comprising a backpack body (100), characterized in that: A rod base plate (200) is provided at the bottom of the backpack body (100), a rod body (210) is inserted and installed on the front side of the rod base plate (200), a rod slot (201) corresponding to the rod body (210) is opened in the center of the front end of the rod base plate (200), a rod storage hole (202) corresponding to the rod body (210) is opened inside the front side of the rod base plate (200), a locking moving wheel (300) is installed at the bottom of the rod base plate (200), and an assembly bottom buckle frame (310) corresponding to the locking moving wheel (300) is fixed at the bottom of the rod base plate (200).

2. The trolley structure of a trolley backpack according to claim 1, characterized in that: The center and both sides of the bottom of the pull rod bottom plate (200) are fixed with supporting bottom ribs (110), and the outside of the supporting bottom ribs (110) is buckled with a strap (111), one end of the strap (111) is fixed to the bottom of the backpack body (100), and the other end of the strap (111) is clamped with a buckle (112), and the buckle (112) is fixed to the bottom of the backpack body (100). A hook belt (101) is fixed to the front surface of the pull rod bottom plate (200), and a barb (102) corresponding to the hook belt (101) is sewn on the bottom of the front side of the backpack body (100), and the barb (102) is hooked inside the hook belt (101).

3. The drawbar structure of a drawbar backpack according to claim 1, characterized in that: A buckle inner plate (301) is fixed on the top of the lockable moving wheel (300), and the buckle inner plate (301) is buckled inside the assembly bottom buckle frame (310). An inner gasket (311) is glued to the inner wall of the assembly bottom buckle frame (310), and an inner buckle protrusion (312) is fixed on the outer end surface of the assembly bottom buckle frame (310).

4. The drawbar structure of a drawbar backpack according to claim 1, characterized in that: A pull rod lower locking pin (220) is inserted and installed at the joint between the front bottom of the pull rod base plate (200) and the pull rod body (210). The pull rod lower locking pin (220) is threadedly connected to the inside of the front side of the pull rod base plate (200). A locking pin torsion ring (221) is fixed to the outer end of the pull rod lower locking pin (220). The front side outer wall of the pull rod base plate (200) is provided with a locking pin groove (222) corresponding to the pull rod lower locking pin (220).

5. The drawbar structure of a drawbar backpack according to claim 1, characterized in that: A pull rod inner tube (211) is inserted into the pull rod body (210), and a pull rod inner core (212) is inserted into the pull rod inner tube (211). A telescopic locking pin (213) is threadedly inserted into the upper part of the pull rod body (210) and the upper part of the pull rod inner tube (211). An auxiliary locking pin (214) is also inserted into the upper part of the pull rod inner tube (211) and the upper part of the pull rod inner core (212). A handle (215) is installed on the top of the pull rod inner core (212), and a socket (216) corresponding to the telescopic locking pin (213) and the auxiliary locking pin (214) is opened at the bottom of the pull rod inner tube (211) and the pull rod inner core (212).

6. The drawbar structure of a drawbar backpack according to claim 1, characterized in that: Auxiliary sockets (230) are fixedly provided on both sides of the pull rod body (210), and auxiliary cross bars (231) are threadedly inserted on both sides of the auxiliary sockets (230). The auxiliary cross bars (231) are wrapped with auxiliary back buckle straps (232) on the outside, and the auxiliary back buckle straps (232) are sewn on the front surface of the backpack body (100). An auxiliary storage hole (203) corresponding to the auxiliary cross bar (231) is opened on one side of the front side of the pull rod bottom plate (200) near the pull rod storage hole (202).

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