Trolley bag with moving wheels convenient to replace

Abstract

The utility model belongs to the technical field of bags and suitcases, and particularly relates to a trolley bag convenient for replacing moving wheels, which is used for solving the problem that a plurality of moving wheels of a bag and suitcases in the prior art are troublesome to replace, and comprises a trolley bag body, and four clamping grooves are symmetrically formed in four corners of the bottom surface of the trolley bag body; a mounting block matched with each clamping groove is arranged in each clamping groove, a moving wheel is fixed to the bottom surface of each mounting block, two bolt assemblies are mounted on the bottom surface of the trolley bag body, each bolt assembly comprises two first bearing seats fixed to the bottom surface of the trolley bag body, and a tooth socket is rotationally connected between the two first bearing seats through bearings; the two ends of the interior of the tooth sleeve are provided with forward teeth and reverse teeth respectively, the interiors of the forward teeth and the reverse teeth are in threaded connection with inserting rods, the middle of the interior of the tooth sleeve is provided with a cavity facilitating movement of the inserting rods, the side of each inserting rod is provided with a flat opening, each inserting rod is provided with a rod sleeve in a penetrating mode, the rod sleeves are matched with the flat openings and used for limiting rotation of the inserting rods, and each installation block is provided with inserting holes matched with the inserting rods.

Description

Technical Field

[0001] The utility model belongs to the technical field of bags and suitcases, and in particular relates to a trolley bag with convenient replacement of moving wheels. Background Art

[0002] As people's living standards improve, more and more people choose to travel, and trolley bags are essential items for people to travel, and mobile wheels are one of the important components of trolley bags.

[0003] The Chinese utility model patent application number 201822265790.2 discloses a bag with quick-release moving wheels, which includes a pull rod, a box body, a mounting seat and a seat plate. A handle is installed on the top of the box body, mounting seats are installed on both sides of the bottom of the box body, and slots are provided on both sides of the inside of the mounting seat. Blocks are installed inside the slots, and universal wheels that vertically penetrate the bottom of the mounting seat are installed at the bottom of the blocks. The mounting seat on one side of the block is provided with a fixed slot, and baffles are installed inside the fixed slot. The installation of the slots and blocks makes it easy to install and remove the universal wheels, thereby facilitating replacement. At the same time, the device is installed with a fixed slot, and a baffle is installed in the fixed slot, so that it is easy to further fix the universal wheels to prevent the universal wheels from escaping from the slots during the movement of the box body, which is convenient to use.

[0004] However, when the luggage is in use, the wear of the moving wheels is relatively uniform. When multiple moving wheels need to be replaced, the above solution requires the user to pull out the baffle in each fixed slot and pull out each card block from the slot, which makes replacing the moving wheels more troublesome.

[0005] Therefore, there is an urgent need to improve the existing luggage and provide a trolley bag that is easy to replace the moving wheels. Utility Model Content

[0006] The utility model aims to provide a trolley bag with easy replacement of moving wheels in view of the deficiencies in the prior art, so as to solve the problems in the prior art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A trolley bag for easy replacement of movable wheels, comprising a trolley bag body, four slots symmetrically provided at the four corners of the bottom surface of the trolley bag body, each slot being provided with a mounting block adapted to the slot, a movable wheel being fixed to the bottom surface of each mounting block, two groups of latch assemblies being installed on the bottom surface of the trolley bag body, the latch assembly being arranged between the two mounting blocks, the latch assembly comprising two bearing seats fixed to the bottom surface of the trolley bag body, a socket being rotatably connected between the two bearing seats via a bearing, a positive thread and a negative thread being respectively provided at both ends of the socket, an insertion rod being threadedly connected in the positive thread and the negative thread, a cavity being provided in the middle portion of the socket for facilitating the movement of the insertion rod, a flat opening being provided on each insertion rod side, each insertion rod being penetrated by a rod sleeve adapted to the flat opening for limiting the rotation of the insertion rod, and a socket adapted to the insertion rod being provided on each mounting block.

[0009] Preferably, a connecting assembly for connecting the two groups of latch assemblies is provided between the two groups of latch assemblies, and the connecting assembly includes two bearing seats 2 fixed to the bottom surface of the trolley bag body, and a connecting rod is rotatably connected between the two bearing seats 2 through a bearing, and a worm is passed through the connecting rod corresponding to the two socket positions, and a worm wheel matching the worm is provided at the corresponding worm position on the outside of the two sockets.

[0010] Preferably, a rocking handle is installed at one end of the connecting rod.

[0011] Preferably, a protective cover is provided below the two groups of latch assemblies and the connecting assembly, and the protective cover is installed on the bottom surface of the trolley bag body.

[0012] Preferably, the movable wheel is a universal wheel.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the scheme of the utility model, positive teeth and negative teeth are respectively arranged at the two ends of the braces. When the braces are manually rotated, the two insertion rods in the braces are driven to axially enter or exit the sockets on the mounting block at the same time under the rotation limit of the rod sleeve, so that two mounting blocks with movable wheels can be replaced at the same time; the two groups of pin assemblies are connected by a connecting assembly, and the shaking handle is manually rotated to drive the connecting rod to rotate, the connecting rod drives the two worms and two worm wheels to rotate, the two worm wheels drive the two braces to rotate, and the two braces drive the four insertion rods to enter or exit the sockets on the mounting block at the same time, so that the four mounting blocks with movable wheels can be replaced at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions, and the following description is made with respect to the drawings:

[0016] Figure 1This is a sideways schematic diagram of the trolley bag structure for facilitating replacement of moving wheels according to the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the latch assembly of the utility model;

[0018] Figure 3 It is a partial cross-sectional schematic diagram of the latch assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection assembly of the utility model;

[0020] Figure 5 It is a schematic diagram of the protective cover of the utility model.

[0021] In the figure:

[0022] 1. Trolley bag body; 2. Slot; 3. Mounting block; 31. Socket; 4. Moving wheel; 5. Latch assembly; 51. Bearing seat 1; 52. Bracket; 521. Orthodontic; 522. Reverse tooth; 523. Cavity; 53. Insert rod; 531. Flat mouth; 54. Rod sleeve; 6. Connecting assembly; 61. Bearing seat 2; 62. Connecting rod; 63. Worm; 64. Worm wheel; 7. Crank handle; 8. Protective cover. DETAILED DESCRIPTION

[0023] The embodiments described below are only some of the embodiments of the present invention and do not represent all the embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0024] like Figure 1-5As shown in one of the figures, the utility model discloses a trolley bag which is easy to replace moving wheels, which comprises a trolley bag body 1, four card slots 2 are symmetrically opened at the four corners of the bottom surface of the trolley bag body 1, a mounting block 3 adapted to the card slot 2 is arranged in each card slot 2, a moving wheel 4 is fixed to the bottom surface of each mounting block 3, two groups of latch assemblies 5 are installed on the bottom surface of the trolley bag body 1, the latch assembly 5 is arranged between the two mounting blocks 3, the latch assembly 5 comprises two bearing seats 51 fixed to the bottom surface of the trolley bag body 1, a tooth sleeve 52 is rotatably connected between the two bearing seats 51 through a bearing, a positive thread 521 and a negative thread 522 are respectively arranged at both ends of the tooth sleeve 52, an insertion rod 53 is threadedly connected in the positive thread 521 and the negative thread 522, a cavity 523 is arranged in the middle part of the tooth sleeve 52 for facilitating the movement of the insertion rod 53, a flat mouth 531 is arranged on the side of each insertion rod 53, and each insertion rod 53 is A rod sleeve 54 is provided which is adapted to the flat mouth 531 for limiting the rotation of the insertion rod 53, and each mounting block 3 is provided with a socket 31 which is adapted to the insertion rod 53; when replacing the moving wheel 4, the sleeve 52 is manually rotated, and the sleeve 52 drives the two insertion rods 53 in the sleeve 52 to axially withdraw from the socket 31 on the corresponding mounting block 3 at the same time under the rotation restriction of the sleeve 54, and the mounting block 3 with the moving wheel 4 is taken out from the slot 2, and a new mounting block 3 with the moving wheel 4 is replaced, and the sleeve 52 is rotated in the opposite direction, and the sleeve 52 drives the two insertion rods 53 to enter the socket 31 on the corresponding mounting block 3 at the same time, thereby fixing the mounting block 3 and completing the replacement of the moving wheel 4; when replacing one or two moving wheels 4 corresponding to the same latch assembly 5, one sleeve 52 of this group of latch assemblies 5 can be rotated in the above manner, and when replacing three or four moving wheels 4, two sleeves 52 are rotated in the above manner.

[0025] As a preferred embodiment, on the basis of the above structure, preferably, a connecting assembly 6 for connecting the two groups of latch assemblies 5 is provided between the two groups of latch assemblies 5, and the connecting assembly 6 includes two bearing seats 61 fixed to the bottom surface of the trolley bag body 1, and a connecting rod 62 is rotatably connected between the two bearing seats 61 through a bearing, and a worm 63 is passed through the connecting rod 62 corresponding to the positions of the two sockets 52, and a worm wheel 64 adapted to the worm 63 is provided at the positions of the two sockets 52 corresponding to the worm 63; the connecting rod 62 is manually rotated, and the connecting rod 62 drives the two worms 63 to rotate, and the two worms 63 drive the two worm wheels 64 to rotate, and the two worm wheels 64 drive the two sockets 52 to rotate, and the two sockets 52 drive the four plugs 53 to enter or exit the socket 31 on the mounting block 3 at the same time, so as to facilitate the replacement of one or more moving wheels 4.

[0026] As a preferred embodiment, on the basis of the above structure, preferably, a rocking handle 7 is installed at one end of the connecting rod 62 to facilitate the rotation of the connecting rod 62.

[0027] As a preferred embodiment, based on the above structure, preferably, a protective cover 8 is provided below the two groups of latch assemblies 5 and the connecting assembly 6, and the protective cover 8 is installed on the bottom surface of the trolley bag body 1. When the trolley bag is towed, the protective cover 8 prevents ground debris from hitting and damaging the two groups of latch assemblies 5 and the connecting assembly 6.

[0028] As a preferred embodiment, preferably, the moving wheel 4 is a universal wheel, which makes it more convenient to drag the trolley bag.

[0029] The working principle of the utility model is as follows:

[0030] When the moving wheel 4 needs to be replaced, the shaking handle 7 is manually rotated, and the shaking handle 7 drives the connecting rod 62 to rotate, and the connecting rod 62 drives the two worm gears 63 to rotate, and the two worm gears 63 drive the two worm wheels 64 to rotate, and the two worm wheels 64 drive the two sleeves 52 to rotate, and the two sleeves 52 drive the four plug rods 53 to withdraw from the socket 31 on the mounting block 3 at the same time, and the mounting block 3 with the moving wheel 4 is taken out of the slot 2, and a new mounting block 3 with the moving wheel 4 is replaced, and the shaking handle 7 is rotated in the opposite direction, and the shaking handle 7 drives the connecting rod 62 to rotate, and the connecting rod 62 drives the two worm gears 63 to rotate, and the two worm gears 63 drive the two worm wheels 64 to rotate, and the two worm wheels 64 drive the two sleeves 52 to rotate, and the two sleeves 52 drive the four plug rods 53 to enter the socket 31 on the mounting block 3 at the same time, thereby fixing the mounting block 3, and completing the replacement of the moving wheel 4.

[0031] The above are only preferred specific embodiments of the utility model and are not intended to limit the protection scope of the utility model; any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the protection scope determined by the claims.

Claims

1. A trolley bag for facilitating replacement of moving wheels, comprising a trolley bag body (1), wherein four slots (2) are symmetrically provided at four corners of the bottom surface of the trolley bag body (1), each of the slots (2) is provided with a mounting block (3) adapted to the slot (2), and a moving wheel (4) is fixed to the bottom surface of each mounting block (3), characterized in that: Two groups of latch assemblies (5) are installed on the bottom surface of the trolley bag body (1). The latch assemblies (5) are arranged between the two mounting blocks (3). The latch assemblies (5) include two bearing seats (51) fixed to the bottom surface of the trolley bag body (1). A threaded sleeve (52) is rotatably connected between the two bearing seats (51) via a bearing. The two ends of the threaded sleeve (52) are respectively provided with a positive thread (521) and a negative thread (522). The positive thread (52 1) An insertion rod (53) is threadedly connected to the counter-thread (522), a cavity (523) is provided in the middle of the tooth sleeve (52) to facilitate the movement of the insertion rod (53), a flat mouth (531) is provided on the side of each insertion rod (53), each insertion rod (53) is penetrated by a rod sleeve (54) adapted to the flat mouth (531) for limiting the rotation of the insertion rod (53), and each mounting block (3) is provided with a socket (31) adapted to the insertion rod (53).

2. The trolley bag with easy-to-replace moving wheels according to claim 1, characterized in that: A connecting assembly (6) for connecting the two groups of latch assemblies (5) is arranged between the two groups of latch assemblies (5), and the connecting assembly (6) includes two bearing seats (61) fixed to the bottom surface of the pull rod bag body (1), and a connecting rod (62) is rotatably connected between the two bearing seats (61) via a bearing, and a worm (63) is passed through the connecting rod (62) at positions corresponding to the two sockets (52), and a worm wheel (64) adapted to the worm (63) is arranged at positions corresponding to the worm (63) on the outside of the two sockets (52).

3. The trolley bag with easy-to-replace moving wheels according to claim 2, characterized in that: A rocking handle (7) is mounted on one end of the connecting rod (62).

4. The trolley bag with easy replacement of moving wheels according to claim 2 or 3, characterized in that: A protective cover (8) is provided below the two groups of latch assemblies (5) and the connecting assembly (6), and the protective cover (8) is installed on the bottom surface of the trolley bag body (1).

5. The trolley bag with easy-to-replace moving wheels according to claim 1, characterized in that: The moving wheel (4) is a universal wheel.

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