A luggage wheel facilitating climbing stairs

Abstract

The utility model relates to the field of luggage wheel convenient to climb steps technical field, a luggage wheel convenient to climb steps, including casing and screw piece one, casing's inner wall is connected with screw piece one fixedly, casing's inner wall is connected with the fixed connection of installation cylinder, the inner wall of installation cylinder is connected with the rotation connection of connecting head, the lower extreme of connecting head is connected with the fixed connection of disc, the lower extreme of disc is connected with installation mechanism. Through casing through screw piece one and box body stable connection, the installation plate in installation mechanism is connected disc through bolt, and the strength of mounting frame is enhanced by reinforcing rod, avoids the deformation when climbing steps, and the climbing is more smooth, and the spring of auxiliary mechanism makes the sub wheel adhere to the step, and the main wheel is prevented from slipping with antiskid line, and the main and sub wheel cooperate easily to pass the step, and the installation cylinder supports the rotating of connecting head, drives the steering of disc and lower part more flexible, and each component bolt connection, and the overall practicality is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of luggage wheels that facilitate climbing stairs, specifically a luggage wheel that facilitates climbing stairs. Background Technology

[0002] Suitcases are widely used in people's daily lives, and are especially important for long-distance travel or business trips. Pull-along suitcases are relatively large and can hold a lot of clothing and other personal items, so they are generally quite heavy. Suitcases are usually equipped with wheels, and people typically move them by pulling the handle.

[0003] For example, a suitcase wheel with authorization announcement number "CN223183073U" for easy climbing stairs, although it solves the problem that the swivel rod of existing suitcase wheels for easy climbing stairs is easily affected, broken, or loosened, and the wheel cannot change direction, the existing suitcase wheels for easy climbing stairs mentioned above can be pulled out and replaced by inserting a rod, but the whole relies on the snap-fit ​​and plug-in connection of multiple parts such as limit blocks and limit rings, without a clear quick disassembly design. During maintenance, it is necessary to gradually disassemble the related structures of the connecting shell, which is cumbersome. Moreover, the functions of auxiliary structures such as ventilation slots and friction strips are vaguely described, and the actual assistance in climbing stairs is limited, which reduces the practicality. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing suitcase wheels that are easy to climb stairs require gradual disassembly of the connecting shell and related structures during maintenance, which is cumbersome and reduces their practicality. Therefore, this invention proposes a suitcase wheel that is easy to climb stairs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a suitcase wheel that facilitates climbing stairs, comprising a shell and a screw block, wherein the inner wall of the shell is fixedly connected to the screw block, the inner wall of the shell is fixedly connected to a mounting cylinder, the inner wall of the mounting cylinder is rotatably connected to a connector, the lower end of the connector is fixedly connected to a disc, and the lower end of the disc is connected to an installation mechanism.

[0006] This feature: The screw block can be securely assembled with the suitcase body via a threaded connection, and the mounting cylinder provides rotational support for the connector, allowing the disc to drive the mounting mechanism below to rotate flexibly.

[0007] Preferably, the mounting mechanism includes a mounting plate, the inner wall of which is threadedly connected to a disc by bolts, the lower end of which is fixedly connected to a mounting frame, and the inner wall of which is threadedly connected to a reinforcing rod by bolts.

[0008] This feature: The mounting mechanism enables stable assembly of the main wheel and auxiliary mechanism. The mounting plate is connected to the disc by bolts, ensuring the connection strength between the mounting frame and the disc. The reinforcement rod further enhances the structural stability of the mounting frame, preventing deformation or damage due to excessive force during the climbing process.

[0009] Preferably, the inner wall of the mounting bracket is threadedly connected to the main shaft by bolts, and the outer wall of the mounting bracket is connected to an auxiliary mechanism.

[0010] This feature: The inner wall of the mounting bracket is connected to the main shaft by bolts, and the main wheel on the outer wall of the main shaft can rotate flexibly through bearings. The anti-slip texture processed on the outer wall of the main wheel can effectively enhance the friction with the ground and prevent slippage during the pulling process.

[0011] Preferably, the auxiliary mechanism includes a connector and a spring. The outer wall of the connector is slidably connected to the mounting bracket, the upper end of the spring abuts against the mounting bracket, the outer wall of the connector abuts against the spring, and the outer wall of the connector is threadedly connected to the screw block.

[0012] This feature: The auxiliary mechanism connected to the outer wall of the mounting bracket plays an important role when the suitcase climbs the steps. The connector is slidably connected to the mounting bracket, and the elasticity of the spring ensures that the auxiliary wheel always keeps in contact with the step surface. The auxiliary wheel on the outer wall of the auxiliary shaft rotates synchronously with the main shaft.

[0013] Preferably, the outer wall of the main shaft is rotatably connected to the main wheel via a bearing.

[0014] This feature: The spindle is connected to the main wheel via bearings, which effectively reduces the frictional resistance when the main wheel rotates, ensuring that the main wheel can roll smoothly under different road conditions.

[0015] Preferably, the inner wall of the connector is threadedly connected to the secondary shaft by bolts, and the outer wall of the secondary shaft is rotatably connected to the secondary wheel by bearings.

[0016] This feature: The secondary shaft and the secondary wheel are rotatably connected via bearings, allowing the secondary wheel to flexibly adapt to changes in step height.

[0017] Preferably, the outer wall of the main wheel is machined with anti-slip texture.

[0018] This feature: The anti-slip texture significantly increases the contact friction between the main wheels and the ground or step surface, especially on wet or slippery surfaces. It can effectively prevent the suitcase from losing directional control due to slipping, and improve the stability and safety during dragging.

[0019] The present invention proposes a suitcase wheel that facilitates climbing stairs. The advantages are as follows: the shell is securely connected to the suitcase body through a screw block; the mounting plate in the mounting mechanism is bolted to the disc; the reinforcing rod strengthens the mounting frame and prevents deformation when climbing stairs, making climbing smoother; the spring in the auxiliary mechanism allows the auxiliary wheel to fit against the stairs; the main wheel has anti-slip texture to prevent slippage; the main and auxiliary wheels work together to easily pass over stairs; the mounting cylinder supports the rotation of the connecting head, making the disc and the components below more flexible in turning; and all components are bolted together, making disassembly and maintenance convenient, thus improving overall practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Schematic diagram of the assembly of the mounting bracket and auxiliary mechanisms; Figure 3 for Figure 1 Schematic diagram of the assembly of the mounting mechanism and the main wheel; Figure 4 for Figure 1 Schematic diagram of the installation mechanism; Figure 5 for Figure 2 Schematic diagram of the assembly of the mounting cylinder and connector; Figure 6 for Figure 1 Schematic diagram of the auxiliary mechanism; Figure 7 for Figure 1 Schematic diagram of the three-dimensional structure of the middle shell.

[0021] In the diagram: 1. Housing, 2. Screw block one, 3. Mounting cylinder, 4. Connector, 5. Disc, 6. Mounting mechanism, 601. Mounting plate, 602. Mounting bracket, 603. Reinforcing rod, 7. Main shaft, 8. Auxiliary mechanism, 801. Connector, 802. Spring, 803. Screw block two, 9. Main wheel, 10. Sub-shaft, 11. Sub-wheel, 12. Anti-slip texture. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings: Please see Figure 1-7 In this embodiment, a suitcase wheel that facilitates climbing stairs includes a housing 1 and a screw block 2. The inner wall of the housing 1 is fixedly connected to the screw block 2, and the inner wall of the housing 1 is fixedly connected to the mounting cylinder 3. The inner wall of the mounting cylinder 3 is rotatably connected to the connector 4. The lower end of the connector 4 is fixedly connected to the disc 5, and the lower end of the disc 5 is connected to the mounting mechanism 6.

[0023] The mounting mechanism 6 includes a mounting plate 601. The inner wall of the mounting plate 601 is threadedly connected to the disc 5 by bolts. The lower end of the mounting plate 601 is fixedly connected to the mounting frame 602. The inner wall of the mounting frame 602 is threadedly connected to the reinforcing rod 603 by bolts.

[0024] The inner wall of the mounting bracket 602 is threadedly connected to the main shaft 7 by bolts. The outer wall of the mounting bracket 602 is connected to the auxiliary mechanism 8. The elastic potential energy of the spring 802 pushes the connecting piece 801 downward, so that the auxiliary wheel 11 is always in close contact with the surface of the step. During the process of the main wheel 9 climbing the step, the auxiliary wheel 11 can contact the edge of the step in advance and generate an upward supporting force, reducing the climbing resistance of the main wheel 9. The auxiliary mechanism 8 includes the connecting piece 801 and the spring 802. The outer wall of the connecting piece 801 is slidably connected to the mounting bracket 602. The upper end of the spring 802 is pressed against the mounting bracket 602. The outer wall of the connecting piece 801 is pressed against the spring 802. The outer wall of the connecting piece 801 is threadedly connected to the screw block 803. The housing 1 is securely connected to the box body via screw block 2. In the mounting mechanism 6, the mounting plate 601 is bolted to the disc 5. The reinforcing rod 603 strengthens the mounting frame 602 to prevent deformation when climbing steps, making climbing smoother. The spring 802 of the auxiliary mechanism 8 allows the auxiliary wheel 11 to fit against the step. The main wheel 9 has anti-slip texture 12 to prevent slippage. The main and auxiliary wheels work together to easily pass over the steps. The mounting cylinder 3 supports the rotation of the connector 4, which drives the disc 5 and the components below to turn more flexibly. All components are bolted together, making disassembly and maintenance convenient and improving overall practicality.

[0025] The outer wall of the main shaft 7 is rotatably connected to the main wheel 9 via bearings. The inner wall of the connector 801 is threadedly connected to the secondary shaft 10 via bolts. The outer wall of the secondary shaft 10 is rotatably connected to the secondary wheel 11 via bearings. The outer wall of the main wheel 9 is machined with anti-slip texture 12. The anti-slip texture 12 is designed with staggered diamond patterns and a texture depth of 1.2mm. It can not only enhance the friction with the flat ground, but also form an effective bite at the corners of the steps, further improving the grip during climbing. At the same time, both the main wheel 9 and the secondary wheel 11 are made of high-elasticity polyurethane material, which has a shock absorption effect.

[0026] Working principle: Assembly process Basic assembly: First, fix the screw block 2 to the inner wall of the housing 1, then connect the mounting cylinder 3 to the inner wall of the housing 1, then insert the connector 4 into the mounting cylinder 3 and make it rotatable, and finally fix the disc 5 to the lower end of the connector 4 to complete the assembly of the upper basic structure of the wheel.

[0027] Assembly of the mounting mechanism: Connect the mounting plate 601 to the disc 5 with bolts and threads, then fix the mounting bracket 602 to the lower end of the mounting plate 601, and then use bolts to install the reinforcing rod 603 on the inner wall of the mounting bracket 602 to enhance the stability of the mounting bracket 602.

[0028] Assembly of main wheel and auxiliary mechanism: The main shaft 7 is bolted to the inner wall of the mounting frame 602. The main wheel 9 is connected to the outer wall of the main shaft 7 through a bearing. The outer wall of the main wheel 9 is pre-machined with anti-slip texture 12. The connecting piece 801 is slidably connected to the mounting frame 602. The upper end of the spring 802 abuts against the mounting frame 602 and the outer wall abuts against the connecting piece 801. The screw block 803 is threaded to the outer wall of the connecting piece 801. Finally, the secondary shaft 10 is bolted to the inner wall of the connecting piece 801. The outer wall of the secondary shaft 10 is connected to the secondary wheel 11 through a bearing, completing the overall assembly.

[0029] Usage effect When pushing the suitcase on flat ground, the anti-slip texture 12 on the main wheel 9 increases friction with the ground to prevent slipping, and the connector 4 can rotate flexibly to easily change the direction of travel. When encountering steps, the auxiliary mechanism comes into play. The spring 802 keeps the auxiliary wheel 11 in contact with the step surface. When the main wheel 9 climbs upwards, the auxiliary wheel 11 provides auxiliary support and rolls, reducing climbing resistance. The reinforcing rod 603 ensures that the mounting bracket 602 does not deform under stress, and the overall structure is stable, allowing users to easily push the suitcase up and down steps, solving the problem of traditional suitcases climbing steps.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suitcase wheel for easy climbing of stairs, comprising a housing (1) and a screw block (2), wherein the inner wall of the housing (1) is fixedly connected to the screw block (2), characterized in that: The inner wall of the housing (1) is fixedly connected to the mounting cylinder (3), the inner wall of the mounting cylinder (3) is rotatably connected to the connector (4), the lower end of the connector (4) is fixedly connected to the disc (5), the lower end of the disc (5) is connected to the mounting mechanism (6), the mounting mechanism (6) includes a mounting plate (601), the inner wall of the mounting plate (601) is threadedly connected to the disc (5) by bolts, the lower end of the mounting plate (601) is fixedly connected to the mounting frame (602), the inner wall of the mounting frame (602) is threadedly connected to the reinforcing rod (603) by bolts; The inner wall of the mounting bracket (602) is threadedly connected to the main shaft (7) by bolts, and the outer wall of the mounting bracket (602) is connected to an auxiliary mechanism (8). The auxiliary mechanism (8) includes a connector (801) and a spring (802). The outer wall of the connector (801) is slidably connected to the mounting bracket (602). The upper end of the spring (802) abuts against the mounting bracket (602). The outer wall of the connector (801) abuts against the spring (802). The outer wall of the connector (801) is threadedly connected to the screw block two (803). The outer wall of the main shaft (7) is rotatably connected to the main wheel (9) via a bearing; The inner wall of the connector (801) is threadedly connected to the sub-shaft (10) by bolts, and the outer wall of the sub-shaft (10) is rotatably connected to the sub-wheel (11) by bearings.

2. The suitcase wheel for easy climbing stairs according to claim 1, characterized in that: The outer wall of the main wheel (9) is machined with anti-slip texture (12).

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