Wheel body for wheel of draw-bar box

Abstract

The wheel body comprises a box body, universal wheels installed at the bottom end of the box body and a pull rod arranged at the upper end of the box body, two sets of sleeve frames are installed at the front end of the box body, rolling wheel sets are installed in the two sets of sleeve frames, rotating bases are installed on the outer walls of the two sides of the box body, and the rotating bases are connected with the box body. And rotating rods are rotationally connected into the two rotating seats correspondingly, and sealing plates are connected to the outer walls of the two rotating rods through connecting support plates correspondingly. The two sets of sleeve frames are installed outside the box body, and the rotatable roller sets are installed in the sleeve frames, so that when the box body needs to be carried on a step, the box body can be inclined to drive the two sets of sleeve frames to move to the step, and then the box body drives the roller sets in the sleeve frames to slide along the edge of the step by pulling the pull rod; and the box does not need to be integrally lifted and carried manually, so that the use convenience of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley cases, in particular to a wheel body for wheels of trolley cases. Background Art

[0002] As a kind of travel luggage, a trolley case provides the functions of conveniently carrying luggage, organizing luggage, and protecting luggage, and is therefore widely welcomed and has become one of the indispensable equipment for modern travel. In order to facilitate the movement of the trolley case, a rotatable wheel body is usually installed on the trolley case. The existing wheel bodies for trolley case wheels can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] Most of the wheel bodies for trolley cases widely used on the market are installed at the bottom of the case, so that the case can be dragged on a flat ground. However, when passing through a bus station or a high-speed rail station, users often need to go up and down stairs, and the existing trolley cases cannot be moved well on the stairs. The user needs to lift the trolley case as a whole, which consumes a lot of physical strength. Therefore, we propose a wheel body for trolley cases to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a wheel body for a trolley case wheel to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheel body for a trolley case, comprising a case, a universal wheel installed at the bottom end of the case and a trolley arranged at the upper end of the case, two sets of sleeves are installed at the front end of the case, roller sets are installed in the two sets of sleeves, swivel seats are installed on the outer walls on both sides of the case, swivel rods are rotatably connected in the two sets of swivel seats, the outer walls of the two sets of swivel rods are connected to sealing plates through connecting bracket plates, the two sets of sealing plates can be rotated to the front end of the sleeves, and the upper ends of the two sets of swivel seats are provided with rotating positioning components.

[0006] As a further preferred embodiment of the present technical solution, the rotation positioning assembly includes an extension column, a sleeve, a movable block, a positioning column, a positioning hole, a handle and a reset spring. The top of the two groups of rotating rods are fixed with an extension column, and the extension column is located at the top of the rotating seat. Sleeves are arranged above the two groups of extension columns, and movable blocks are arranged in the two groups of sleeves. Two groups of positioning columns are fixed to the bottom ends of the two groups of movable blocks. Two groups of positioning holes are opened on the top ends of the two groups of extension columns, and the bottom ends of the positioning columns can be inserted into the positioning holes. Handles are fixed to the top ends of the two groups of movable blocks, and reset springs are wound around the outsides of the two groups of handles.

[0007] As a further preferred embodiment of the present technical solution, rubber gaskets are glued to the inner walls of the two groups of sealing plates.

[0008] As a further preferred embodiment of the present technical solution, a spherical protrusion is provided on the top of the handle.

[0009] As a further preferred embodiment of the present technical solution, the width of the movable block is the same as the width of the inner wall of the sleeve, and the movable block is slidably connected to the sleeve.

[0010] As a further preferred embodiment of the present technical solution, the outer wall of the positioning column is fully fitted with the inner wall of the positioning hole.

[0011] As a further preferred embodiment of the present technical solution, two ends of the return spring are respectively connected to the outer wall of the movable block and the inner wall of the sleeve, and the movable block is elastically connected to the inner wall of the sleeve through the return spring.

[0012] The utility model provides a wheel body for a trolley case wheel, which has the following beneficial effects:

[0013] 1. The utility model has two sets of frames installed on the outside of the box body, and rotatable roller groups installed in the frames. When the box body needs to be carried on the steps, the box body can be tilted to allow the box body to drive the two sets of frames to move onto the steps, and then the pull rod is pulled to allow the box body to drive the roller groups in the frames to slide along the edge of the steps, so that the box body can be quickly carried without the need to manually lift the entire box body for transportation, which effectively improves the convenience of using the device, and then rotatable covering plates are installed on the outside of the two sets of frames. When the box body moves normally, the two sets of covering plates can be rotated to the outside of the frames to allow the covering plates to shield the roller groups in the frames, thereby avoiding direct contact between the roller groups and the human body and the problem of dust adhering to the human body.

[0014] 2. The utility model installs an extension column on the top of the rotating rod and a liftable positioning column above the extension column. When the sealing plate drives the rotating rod to rotate 180 degrees, the reset spring can release the elastic force, and the movable block drives the two groups of positioning columns to insert into the two groups of positioning holes on the extension column under the elastic force of the reset spring, so that the two groups of movable blocks can quickly form a rotation limiting effect on the extension column, so that the sealing plate can be used stably, thereby improving the stability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the active state of the utility model;

[0018] Figure 4 For the utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0019] Figure 5 For the utility model Figure 2 Schematic diagram of the enlarged structure at B.

[0020] In the figure: 1. box body; 2. universal wheel; 3. pull rod; 4. sleeve frame; 5. roller assembly; 6. swivel seat; 7. swivel rod; 8. connecting bracket plate; 9. sealing plate; 10. extension column; 11. sleeve; 12. movable block; 13. positioning column; 14. positioning hole; 15. pull handle; 16. reset spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figures 1 to 5 As shown, in this embodiment, a wheel body for a trolley case includes a case 1, a universal wheel 2 installed at the bottom end of the case 1 and a trolley 3 arranged at the upper end of the case 1, two sets of frames 4 are installed at the front end of the case 1, and roller sets 5 are installed in the two sets of frames 4, and swivel seats 6 are installed on the outer walls of both sides of the case 1, and swivel rods 7 are rotatably connected in the two sets of swivel seats 6. The outer walls of the two sets of swivel rods 7 are connected to closing plates 9 through connecting bracket plates 8, and the two sets of closing plates 9 can be rotated to the front end of the frames 4, and the upper ends of the two sets of swivel seats 6 are provided with rotating positioning components.

[0023] By installing two groups of sleeve frames 4 on the outside of the box body 1 and installing a rotatable roller group 5 inside the sleeve frames 4, when the box body 1 needs to be carried on the steps, the box body 1 can be tilted to allow the box body 1 to drive the two groups of sleeve frames 4 to move onto the steps, and then by pulling the pull rod 3, the box body 1 drives the roller group 5 in the sleeve frames 4 to slide along the edge of the steps, so that the box body 1 can be quickly transported without the need to manually lift the box body 1 as a whole for transportation, which effectively improves the convenience of using the device, and then by installing a rotatable covering plate 9 on the outside of the two groups of sleeve frames 4, when the box body 1 moves normally, the two groups of covering plates 9 can be rotated to the outside of the sleeve frames 4, so that the covering plates 9 can block the roller group 5 in the sleeve frames 4, avoiding the problem of direct contact between the roller group 5 and the human body and the adhesion of dust to the human body.

[0024] In other embodiments, the rotation positioning assembly includes an extension column 10, a sleeve 11, a movable block 12, a positioning column 13, a positioning hole 14, a handle 15 and a reset spring 16. The top of the two groups of rotating rods 7 are fixed with an extension column 10, and the extension column 10 is located at the top of the rotating seat 6. The sleeve 11 is arranged above the two groups of extension columns 10, and the movable block 12 is arranged in the two groups of sleeves 11. The bottom of the two groups of movable blocks 12 are fixed with two groups of positioning columns 13, and the top of the two groups of extension columns 10 is opened with two groups of positioning holes 14. The bottom of the positioning column 13 can be inserted into the positioning hole 14. The top of the two groups of movable blocks 12 is fixed with a handle 15, and the outside of the two groups of handles 15 is wound with a reset spring 16;

[0025] By installing an extension column 10 at the top of the rotating rod 7 and installing a liftable positioning column 13 above the extension column 10, when the closing plate 9 needs to be rotated, the pull handle 15 can be pulled upward to allow the movable block 12 to drive the two groups of positioning columns 13 to move upward along the extension column 10, and the return spring 16 outside the pull handle 15 is squeezed and deformed by the movable block 12 to accumulate force. When the two groups of positioning columns 13 completely leave the two groups of positioning holes 14 on the extension column 10, the closing plate 9 can be pushed, allowing the closing plate 9 to drive the rotating rod 7 to rotate one hundred and eighty degrees, and then the upward pulling force on the pull handle 15 is released to allow the return spring 16 to release the elastic force, so that the movable block 12 drives the two groups of positioning columns 13 to be inserted into the two groups of positioning holes 14 on the extension column 10 under the elastic force of the return spring 16, so that the two groups of movable blocks 12 quickly form a rotation limiting effect on the extension column 10, so that the closing plate 9 can be used stably, thereby improving the stability of the device during use.

[0026] In other embodiments, rubber gaskets are glued to the inner walls of the two sets of sealing plates 9;

[0027] With this design, when the sealing plate 9 moves to the outside of the sleeve frame 4 , the rubber gasket on the sealing plate 9 can be in contact with the roller set 5 , thereby preventing the roller set 5 from making abnormal noise during the movement of the box body 1 .

[0028] In other embodiments, a spherical protrusion is provided on the top of the pull handle 15;

[0029] Through this design, the contact area between the handle 15 and the user's hand can be effectively increased, thereby facilitating pulling the handle 15.

[0030] In other embodiments, the width of the movable block 12 is the same as the width of the inner wall of the sleeve 11, and the movable block 12 is slidably connected to the sleeve 11;

[0031] Through this design, the movable block 12 can drive the two groups of positioning posts 13 to slide up and down smoothly and quickly inside the extension post 10 .

[0032] In other embodiments, the outer wall of the positioning column 13 is fully fitted with the inner wall of the positioning hole 14;

[0033] With this design, when the two groups of positioning posts 13 are inserted into the two groups of positioning holes 14 on the extension post 10 , the positioning posts 13 can be effectively prevented from shaking in the positioning holes 14 , thereby improving the stability of the device during use.

[0034] In other embodiments, the two ends of the return spring 16 are respectively connected to the outer wall of the movable block 12 and the inner wall of the sleeve 11, and the movable block 12 is elastically connected to the inner wall of the sleeve 11 through the return spring 16;

[0035] With this design, the return spring 16 can release the downward elastic force on the movable block 12 , so that the movable block 12 can drive the two groups of positioning posts 13 to quickly insert into the two groups of positioning holes 14 on the extension post 10 .

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheel body for a trolley case, comprising a case body (1), a universal wheel (2) mounted at the bottom end of the case body (1), and a trolley (3) arranged at the upper end of the case body (1), characterized in that: Two sets of sleeve frames (4) are installed at the front end of the box body (1), and roller sets (5) are installed in the two sets of sleeve frames (4). Rotating seats (6) are installed on the outer walls of both sides of the box body (1). Rotating rods (7) are rotatably connected in the two sets of rotating seats (6). The outer walls of the two sets of rotating rods (7) are connected to sealing plates (9) through connecting bracket plates (8). The two sets of sealing plates (9) can be rotated to the front end of the sleeve frames (4), and the upper ends of the two sets of rotating seats (6) are provided with rotating positioning components.

2. The wheel body for a trolley case according to claim 1, characterized in that: The rotating positioning assembly comprises an extension column (10), a sleeve (11), a movable block (12), a positioning column (13), a positioning hole (14), a handle (15) and a reset spring (16). The top of the two groups of rotating rods (7) are fixed with an extension column (10), and the extension column (10) is located at the top of the rotating seat (6). The two groups of extension columns (10) are provided with a sleeve (11) above, and the two groups of sleeves (11) are provided with a movable block (12). The bottom of the two groups of movable blocks (12) are fixed with two groups of positioning columns (13). The top of the two groups of extension columns (10) are opened with two groups of positioning holes (14), and the bottom of the positioning column (13) can be inserted into the positioning hole (14). The top of the two groups of movable blocks (12) are fixed with a handle (15), and the outside of the two groups of handles (15) are wound with a reset spring (16).

3. The wheel body for a trolley case according to claim 1, characterized in that: The inner walls of the two groups of sealing plates (9) are both glued with rubber gaskets.

4. The wheel body for a trolley case according to claim 2, characterized in that: A spherical protrusion is arranged on the top of the pull handle (15).

5. The wheel body for a trolley case according to claim 2, characterized in that: The width of the movable block (12) is the same as the width of the inner wall of the sleeve (11), and the movable block (12) and the sleeve (11) are slidably connected.

6. The wheel body for a trolley case according to claim 2, characterized in that: The outer wall of the positioning column (13) is fully fitted with the inner wall of the positioning hole (14).

7. The wheel body for a trolley case according to claim 2, characterized in that: The two ends of the return spring (16) are respectively connected to the outer wall of the movable block (12) and the inner wall of the sleeve (11), and the movable block (12) is elastically connected to the inner wall of the sleeve (11) via the return spring (16).

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