Draw-bar backpack base with detachable draw bar

Abstract

The trolley backpack base comprises a base body, a vertical plate is fixedly connected to the top face of one side of the base body, an insertion opening is formed in the middle of the vertical plate, a bottom opening is formed in the bottom end of the insertion opening, the width of the bottom opening is smaller than that of the insertion opening, and a pull rod assembly is arranged in the insertion opening and comprises a main rod body. A through cavity is vertically formed in the main rod body, the through cavity is vertically arranged on the lower portion of the auxiliary rod body in a sliding mode, and the bottom end of the through cavity is fixedly sleeved with a sleeve block. By pressing the cylindrical clamping block, the cylindrical clamping block can be separated from the clamping hole, and the pull rod assembly can be pulled out upwards, so that the pull rod assembly can be quickly disassembled, the pull rod assembly is more convenient to store after being disassembled, and the seat body or the pull rod assembly can be independently replaced when a damage phenomenon occurs; the height of the sub-rod body in the pull rod assembly can be adjusted, and the position of the sub-rod body can be fixed by screwing the hand-rotating nut, so that the overall height of the pull rod assembly can be adjusted according to a user, and the pull rod assembly is more practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to trolley backpack base technical field, concretely is a trolley backpack base of trolley detachable. BACKGROUND

[0002] The backpack refers to the bag on the back, some backpacks are heavy after packing articles, and it is laborious to carry, for example, the schoolbag of a pupil, therefore, the trolley backpack base appears on the market, the base has the pulley and the trolley, can install the backpack on the base, is convenient for pulling, is very labor-saving, is a kind of commonly used household goods, the trolley base is composed of a base supporting the backpack and a trolley pulled by hand, for example, the Chinese utility model application for public disclosure of a backpack trolley frame base with the announcement number CN210076842U is used for the fixed placement of backpack, the back width of the backpack is provided with a connecting belt, and the connecting belt and the back width form a gap for cooperating with the trolley frame base, the backpack trolley frame base includes a base, a telescopic trolley, a pair of casters and a pair of supporting legs, but the current trolley backpack base has the following defects:

[0003] The current trolley backpack base is of integral structure, the trolley and the base are not easy to separate, need to be replaced as a whole when being damaged, and the trolley and the base fixed together can lead to the overall floor area to be larger, and it is inconvenient to store.

[0004] Therefore, a trolley backpack base of trolley detachable is provided to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a trolley backpack base of trolley detachable to solve the problems in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a trolley backpack base of trolley detachable, including the seat body, the seat body one side top surface is fixedly connected with the stand, the stand middle part is equipped with the socket, the socket bottom end is equipped with the bottom, the bottom width is less than the socket, the socket is provided with trolley assembly, the trolley assembly includes the main rod body, the main rod body is vertically equipped with the cavity, the cavity vertically slides and is provided with the lower part of the sub-rod body, the cavity bottom end is fixedly connected with the sleeve block, the sleeve block bottom end is fixedly connected with the plug block, the main rod body bottom end is inserted into the socket, the plug block is inserted into the bottom, the plug block width is less than the main rod body width, the stand side wall is equipped with the clamping hole corresponding the bottom position, the plug block is close to the clamping hole one side and is equipped with the opening, the opening bottom end is fixedly connected with the elastic plastic piece, the elastic plastic piece top end is fixedly connected with the cylindrical clamping block, the cylindrical clamping block is sleeved in the opening, and the cylindrical clamping block top clamping hole is connected.

[0007] Preferably, the cylindrical clamping block is close to the clamping hole one side and is streamlined, and the cylindrical clamping block top thickness is greater than the bottom thickness.

[0008] Preferably, the sub-rod body bottom end is fixedly connected with a sliding block, the sliding block is slidingly sleeved in the through cavity, the main rod body side wall is provided with a through groove, the sliding block is fixedly connected with a sliding column close to one side of the through groove, the sliding column is vertically slidingly connected with the through groove, the sliding column end is fixedly connected with a threaded column, the threaded column is threadedly connected with a hand-turning nut, the main rod body side wall is fixedly connected with a rubber strip at the through groove edge position, and the hand-turning nut end contacts the rubber strip.

[0009] Preferably, the sub-rod body top end is sleeved with a sleeve body, the sleeve body top surface is fixedly connected with a handle, and the sleeve body side wall is fixedly connected with a threaded sleeve.

[0010] Preferably, the main rod body top end is sleeved with a sleeve pipe, the sleeve pipe is fixedly connected with a hook close to one side of the seat body, and the sleeve pipe top surface is fixedly connected with a limiting frame.

[0011] Preferably, the seat body is rotatably connected with two pulleys at two ends close to the pull rod assembly side, and the seat body is fixedly sleeved with two supporting columns away from the pulley side.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a pull rod assembly can be pulled out by pressing the cylindrical clamping block, and the cylindrical clamping block can be separated from the clamping hole, so that the pull rod assembly can be pulled out upward, the pull rod assembly can be quickly disassembled, and the pull rod assembly can be more conveniently stored after disassembly. ACCURATE DRAWINGS

[0014] Figure 1 It is the main body structure schematic view in the first and second embodiments of the utility model;

[0015] Figure 2 It is the pull rod assembly cut structure schematic view in the first and second embodiments of the utility model;

[0016] Figure 3 It is the main body cut structure schematic view in the first and second embodiments of the utility model;

[0017] Figure 4 It is the main body cut structure schematic view in the first and second embodiments of the utility model; Figure 3 It is the structure enlarged structure schematic view of A in the first and second embodiments of the utility model.

[0018] In the figure: 1, seat body; 2, pull rod assembly; 11, vertical plate; 12, socket; 13, bottom opening; 14, clamping hole; 15, pulley; 16, support column; 21, main rod body; 22, through cavity; 23, sub-rod body; 24, sleeve block; 25, plug block; 26, through opening; 27, elastic plastic piece; 28, cylindrical clamping block; 29, sleeve; 210, handle; 211, sleeve; 212, hook; 213, limiting frame; 214, sliding block; 215, sliding column; 216, through slot; 217, threaded column; 218, hand nut; 219, rubber strip; 220, threaded sleeve; 221, hand bolt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of pull rod detachable pull rod backpack base, including seat body 1, seat body 1 one side top surface is fixedly connected vertical plate 11, vertical plate 11 middle part is set with socket 12, socket 12 bottom end is set with bottom opening 13, bottom opening 13 width is less than socket 12, socket 12 is provided with pull rod assembly 2, pull rod assembly 2 includes main rod body 21, vertically set through cavity 22 in main rod body 21, through cavity 22 vertically slidingly sets sub-rod body 23 lower part, through cavity 22 bottom end is fixedly connected with sleeve block 24, sleeve block 24 bottom end is fixedly connected with plug block 25, main rod body 21 bottom end is inserted into socket 12, plug block 25 is inserted into bottom opening 13, plug block 25 width is less than the width of main rod body 21, vertical plate 11 side wall is set with clamping hole 14 corresponding to bottom opening 13 position, plug block 25 is set with through opening 26 close to one side of clamping hole 14, through opening 26 bottom end is fixedly connected with elastic plastic piece 27, elastic plastic piece 27 top end is fixedly connected with cylindrical clamping block 28, cylindrical clamping block 28 is set in through opening 26, cylindrical clamping block 28 top is clamped with clamping hole 14, main rod body 21 bottom end is limited by socket 12, cylindrical clamping block 28 is inserted into clamping hole 14, so that pull rod assembly 2 is fixed with seat body 1, by pressing cylindrical clamping block 28, can make cylindrical clamping block 28 leave clamping hole 14, and upwards can pull out pull rod assembly 2, realize the quick disassembly of pull rod assembly 2, after disassembly, it is more convenient to store, and damage phenomenon can be individually replaced seat body 1 or pull rod assembly 2.

[0022] Embodiment 2

[0023] Please refer to Figures 1-4For the second embodiment of the utility model, the embodiment is based on the previous embodiment, the side of the cylindrical clamping block 28 close to the clamping hole 14 is streamline shape, the thickness of the top of the cylindrical clamping block 28 is greater than the thickness of the bottom, when installing the pull rod assembly 2, the plug block 25 can be inserted into the bottom opening 13 more conveniently.

[0024] The bottom end of the sub-rod body 23 is fixedly connected with a sliding block 214, the sliding block 214 is slidingly sleeved in the through cavity 22, a through slot 216 is formed in the side wall of the main rod body 21, the side of the sliding block 214 close to the through slot 216 is fixedly connected with a sliding column 215, the sliding column 215 is vertically slidingly connected with the through slot 216, the end of the sliding column 215 is fixedly connected with a threaded column 217, the threaded column 217 is threadedly connected with a hand-turning nut 218, the side wall of the main rod body 21 is fixedly connected with a rubber strip 219 at the edge position of the through slot 216, the end of the hand-turning nut 218 is in contact with the rubber strip 219, the height of the sub-rod body 23 can be adjusted, the position of the sub-rod body 23 can be fixed by tightening the hand-turning nut 218, so that the overall height of the pull rod assembly 2 can be adjusted according to the user, and the pull rod assembly 2 is more practical.

[0025] The top end of the sub-rod body 23 is sleeved with a sleeve body 29, the top surface of the sleeve body 29 is fixedly connected with a handle 210, the side wall of the sleeve body 29 is fixedly connected with a threaded sleeve 220, the threaded sleeve 220 is threadedly connected with a hand-turning bolt 221, and the end of the hand-turning bolt 221 is in contact with the side wall of the sub-rod body 23.

[0026] The top end of the main rod body 21 is sleeved with a sleeve pipe 211, the side of the sleeve pipe 211 close to the seat body 1 is fixedly connected with a hook 212, the top surface of the sleeve pipe 211 is fixedly connected with a limiting frame 213, the limiting frame 213 is in contact with the top end of the main rod body 21, the hook 212 is used for hanging the top of a backpack, and the limiting frame 213 limits the sleeve pipe 211 and does not allow the sleeve pipe 211 to move downward.

[0027] The seat body 1 is rotatably connected with two pulleys 15 at the two ends of the side close to the pull rod assembly 2, and the seat body 1 is fixedly sleeved with two supporting columns 16 at the end away from the pulleys 15.

[0028] Embodiment 3:

[0029] Please refer to Figures 1-4For the third embodiment of the utility model, the embodiment is based on the above two embodiments, when the utility model is used, during installation, the main rod body 21 on the pull rod assembly 2 is inserted along the position of the socket 12 until the sound of the cylindrical clamping block 28 clamping in the clamping hole 14 is heard, the backpack is placed on the seat body 1, and the backpack top strap is hung on the hook 212, and the pull rod assembly 2 can be quickly disassembled; the utility model can make the cylindrical clamping block 28 leave the clamping hole 14 by pressing the cylindrical clamping block 28, and the pull rod assembly 2 can be pulled out upward, the quick disassembly of the pull rod assembly 2 is realized, the disassembly is more convenient to store, and the seat body 1 or the pull rod assembly 2 can be individually replaced when damage occurs; the height of the sub rod body 23 in the pull rod assembly 2 can be adjusted, and the position of the sub rod body 23 can be fixed by tightening the hand turning nut 218, so that the overall height of the pull rod assembly 2 can be adjusted according to the user, and the utility model is more practical.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable trolley base of a trolley backpack, comprising a base body (1), characterized in that: one side of the base body (1) is fixedly connected with a vertical plate (11), a socket (12) is formed in the middle of the vertical plate (11), a bottom socket (13) is formed at the bottom end of the socket (12), the width of the bottom socket (13) is smaller than that of the socket (12), a trolley assembly (2) is arranged in the socket (12), the trolley assembly (2) comprises a main rod body (21), a through cavity (22) is vertically formed in the main rod body (21), a sub-rod body (23) is vertically and slidably arranged in the lower part of the through cavity (22), a sleeve block (24) is fixedly sleeved at the bottom end of the through cavity (22), an insertion block (25) is fixedly connected to the bottom end of the sleeve block (24), the main rod body (21) is inserted into the socket (12), the insertion block (25) is inserted into the bottom socket (13), the width of the insertion block (25) is smaller than that of the main rod body (21), a clamping hole (14) is formed in the side wall of the vertical plate (11) corresponding to the position of the bottom socket (13), a through hole (26) is formed in the side of the insertion block (25) close to the clamping hole (14), an elastic plastic piece (27) is fixedly connected to the bottom end of the through hole (26), a cylindrical clamping block (28) is fixedly connected to the top end of the elastic plastic piece (27), the cylindrical clamping block (28) is sleeved in the through hole (26), and the top of the cylindrical clamping block (28) is clamped in the clamping hole (14).

2. The trolley detachable trolley backpack base of claim 1, wherein: The side of the cylindrical clamping block (28) close to the clamping hole (14) is in a streamline shape, and the thickness of the top of the cylindrical clamping block (28) is greater than that of the bottom.

3. The trolley detachable trolley backpack base of claim 1, wherein: The bottom end of the sub-rod body (23) is fixedly connected with a sliding block (214), and the sliding block (214) is slidably sleeved in the through cavity (22).

4. A trolley detachable backpack base according to claim 3, characterized in that: A through groove (216) is formed in the side wall of the main rod body (21), a sliding column (215) is fixedly connected to the side of the sliding block (214) close to the through groove (216), and the sliding column (215) is vertically and slidably connected to the through groove (216).

5. A trolley detachable trolley backpack base according to claim 4, characterized in that: A threaded column (217) is fixedly connected to the end of the sliding column (215), a hand-turning nut (218) is threadedly connected to the threaded column (217), a rubber strip (219) is fixedly connected to the side wall of the main rod body (21) at the edge of the through groove (216), and the end of the hand-turning nut (218) contacts the rubber strip (219).

6. The trolley detachable backpack base of claim 1, wherein: A sleeve body (29) is sleeved at the top end of the sub-rod body (23), and a handle (210) is fixedly connected to the top surface of the sleeve body (29).

7. A trolley detachable trolley backpack base according to claim 6, characterized in that: A threaded sleeve (220) is fixedly connected to the side wall of the sleeve body (29), a hand-turning bolt (221) is threadedly connected to the threaded sleeve (220), and the end of the hand-turning bolt (221) contacts the side wall of the sub-rod body (23).

8. The trolley detachable backpack base of claim 1, wherein: A sleeve pipe (211) is sleeved at the top end of the main rod body (21), and a hook (212) is fixedly connected to the side of the sleeve pipe (211) close to the base body (1).

9. A trolley detachable backpack base according to claim 8, characterized in that: A limiting frame (213) is fixedly connected to the top surface of the sleeve pipe (211), and the limiting frame (213) contacts the top end of the main rod body (21).

10. The trolley detachable backpack base of claim 1, wherein: Two pulleys (15) are rotatably connected to the two ends of the side of the base body (1) close to the trolley assembly (2), and two supporting columns (16) are fixedly sleeved at the end of the base body (1) away from the pulleys (15).

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