Luggage case wheel with self-locking structure

By designing a self-locking structure and ventilation slots on the luggage wheels, the problem of unstable fixation caused by wheel slippage is solved, achieving stable wheel locking and extending the service life of the wheels.

CN223948925UActive Publication Date: 2026-02-27ZHEJIANG KARUIQI TRAVEL PROD CO LTD
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Patent Information

Application Number
CN202520779053.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-02-27
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

Existing suitcase wheels tend to slip when not in use, causing instability and posing a safety hazard, especially on sloping surfaces where they can easily slip off.

Method used

A luggage wheel with a self-locking structure was designed. The wheel is locked and unlocked by the cooperation of the locking block and the stop block, and by the use of the drive block and the rotating rod, ensuring that the wheel is fixed when it does not need to move. At the same time, the wheel's service life is extended by the setting of the sealing ring and the ventilation groove.

Benefits of technology

The design achieves stable wheel fixation, reduces safety hazards, and extends wheel lifespan through the ventilation slot design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wheels, and discloses a luggage case wheel with a self-locking structure, which comprises a connecting structure, a wheel main body and a locking structure, the wheel main body is fixedly connected on the outer wall of the connecting structure, the locking structure is fixedly connected on the inner wall of the connecting structure, the connecting structure comprises a shell, a circular groove is arranged on the outer wall of the shell, and the locking structure is fixedly connected on the inner wall of the shell. A rotating rod is rotationally connected to the inner wall of the circular groove, a clamping block is fixedly connected to the outer wall of the rotating rod, and a driving block is fixedly connected to the end, away from the shell, of the rotating rod. Through the arrangement of the clamping blocks and the stop blocks, when the wheel body needs to be locked in the using process of the equipment, a user treads the driving blocks downwards with the feet, the driving blocks rotate downwards to drive the rotating rods and the clamping blocks connected with the rotating rods to rotate, the clamping blocks rotate downwards to extrude the stop blocks, and the limiting plates limit the rotating rods and the clamping blocks; when the wheel body needs to be moved, the foot loosens the driving block, the rim is not stressed to abut against the check block and the limiting plate, the check block and the limiting plate are matched to upwards drive the clamping block and the rotating rod to rotate and reset, and potential safety hazards of the wheel are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a wheel device technical field, concretely is a luggage wheel with self locking structure. BACKGROUND

[0002] Luggage is very widely used in people's daily life, and is particularly important when traveling or going on a business trip. The pull box shape volume is big, can accommodate a large number of clothes and other daily necessities, so it is generally heavier, and the luggage is usually provided with a truckle, and people often drag the pull rod to make it roll on the ground.

[0003] The application number CN201920150406.6 discloses a luggage wheel, which comprises a body, the body comprises an internal shaft hole part and a supporting part located on the outside, the supporting part is located outside the shaft hole part and the two are an integral structure, a plurality of through holes are arranged in a ring shape on the supporting part, the through holes are divided into a first through hole and a second through hole, the first through hole and the second through hole are arranged alternately in a ring shape, a first reinforcing rib is arranged on the edge of the first through hole in the axial direction of the shaft hole, a second reinforcing rib is arranged on the edge of the second through hole in the axial direction of the shaft hole, a ring-shaped wear-resistant part is arranged outside the supporting part, the supporting part and the wear-resistant part are an integral structure, and a wear-resistant shaft sleeve is arranged inside the shaft hole.

[0004] The luggage wheel disclosed in the above document has the following defects: during the use of the wheel, when the luggage does not need to be moved, the luggage is not stable due to the easy sliding of the wheel, and on the ground with a slope, the wheel cannot be fixed and easily makes the luggage slide down, which causes a safety hazard to the human body.

[0005] Therefore, the existing luggage wheel does not have the function of locking the wheel, and needs to be improved to provide a function of locking the wheel. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a luggage wheel with a self locking structure to solve the problems in the background art.

[0007] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0008] The utility model discloses a luggage wheel with self -locking structure, including connecting structure, wheel main part and locking structure, wheel main part fixedly connected on the outer wall of connecting structure, locking structure fixedly connected on the inner wall of connecting structure, connecting structure includes the casing, the outer wall of casing is equipped with the round groove, the inner wall of round groove is rotatably connected with the rotating link, the outer wall of rotating link is fixedly connected with the clamping block, the one end of rotating link is fixedly connected with the drive block. The purpose that sets up like this is, when needing to lock wheel main part in the equipment use process, the user uses foot to press down drive block, and drive block rotates down and drives rotating link and the clamping block of connection to rotate, and the clamping block rotates down and extrudes the stopper, and the stopper's protruding piece clamps the tire, and the wheel main part is in the locking state, when needing to move wheel main part, the foot releases drive block, and the rim is not forced and is pressed against the stopper and the limiting plate cooperation and drives the clamping block and rotating link to rotate back to reset, which reduces the security risk of the wheel.

[0009] Further, the outer wall of the shell is provided with a round hole, the inner wall of the round hole is provided with a fastener, the outer wall of the fastener is sleeved with a fixed plate, and the outer wall of the fixed plate is fixedly connected with a limiting plate and a stopper. The purpose of this arrangement is that during the use of the device, the limiting plate and the stopper connected to the fixed plate are connected in the shell by the fastener. When the brake protrusion of the stopper is worn out, it can be replaced by removing the fastener.

[0010] Further, the upper surface of the shell is rotatably connected with a rotating block, the outer wall of the rotating block is rotatably connected with a mounting plate, the rotating block extends to the inner wall of the mounting plate, and the upper surface of the mounting plate is provided with four screw holes. The purpose of this arrangement is that during the use of the device, the structure is installed to the bottom of the luggage case through the screw holes of the mounting plate, and the rotating block drives the wheel main body connected to the shell to adjust the steering.

[0011] Further, two limiting grooves are formed in the outer walls on both sides of the bottom of the shell, a rotating shaft is rotatably connected to the inner walls of the limiting grooves, a fastening nut is threadedly connected to one end of the rotating shaft, and a limiting block is fixedly connected to the other end of the rotating shaft. The fastening nut and the limiting block are on the outer wall of the shell close to the limiting groove. The purpose of this arrangement is that during the use of the device, the limiting block limits the connection between the rotating shaft and the shell, and the fastening nut fixes the connection between the other end of the rotating shaft and the shell. When the wheel main body needs to be disassembled and replaced, the fastening nut and the two sealing rings can be unscrewed.

[0012] Further, the rotating shaft is provided with a rim, the outer wall of the rim is provided with a mounting groove, and the rim is sleeved on the rotating shaft through the mounting groove. The purpose of this arrangement is that during the use of the device, the wheel main body is sleeved on the rotating shaft through the mounting groove.

[0013] Further, the rim is sleeved with a sealing ring near the two sides of the rotating shaft, the outer wall of the rim is fixedly connected with a tire, and a ventilation groove is formed in the outer wall of the rim. By setting the sealing ring and the ventilation groove, the two sides of the rim are fixed on the rotating shaft during use of the device, the tire is repeatedly rubbed on the ground when the rim rotates, heat is generated in the tire, the heat is not dissipated and the wear of the tire is easily accelerated, the heat is conducted to the rim, the rim is ventilated and cooled through the ventilation groove, and the service life of the wheel body is prolonged.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] (1) The utility model discloses a driving block, a rotating rod, a clamping block, a stop block and a limiting plate are arranged on the wheel body, the driving block is arranged on the rotating rod, the clamping block is sleeved on the rotating rod, the stop block is arranged on the clamping block, and the limiting plate is arranged on the rotating rod. When the wheel body needs to be locked, the user steps on the driving block to drive the rotating rod and the clamping block to rotate, the clamping block is pressed to the stop block, the limiting plate limits the rotating rod and the clamping block, the convex block of the stop block clamps the tire, and the wheel body is in a locked state. When the wheel body needs to be moved, the user releases the driving block, the rim is not forced to drive the clamping block and the rotating rod to rotate upward and reset against the stop block and the limiting plate, and the safety hazard of the wheel is reduced.

[0016] (2) The utility model discloses a sealing ring and a ventilation groove. During use of the device, the two sides of the rim are fixed on the rotating shaft through the sealing ring, the tire is repeatedly rubbed on the ground when the rim rotates, heat is generated in the tire, the heat is not dissipated and the wear of the tire is easily accelerated, the heat is conducted to the rim, the rim is ventilated and cooled through the ventilation groove, and the service life of the wheel body is prolonged.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0019] Figure 1 It is the main structure schematic diagram of the utility model;

[0020] Figure 2 It is the wheel body structure schematic diagram of the utility model;

[0021] Figure 3 It is the part sectional structure schematic diagram of the utility model;

[0022] Figure 4 It is the internal profile structure schematic view of the utility model;

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] In the drawings: 1, connecting structure; 101, mounting plate; 102, screw hole; 103, rotating block; 104, shell; 105, circular groove; 106, circular hole; 107, limiting groove; 108, fastening nut; 109, fastener; 110, rotating shaft; 111, limiting block; 2, wheel main body; 201, tire; 202, rim; 203, ventilation groove; 204, sealing ring; 205, mounting groove; 3, locking structure; 301, rotating rod; 302, clamping block; 303, driving block; 304, fixed plate; 305, limiting plate; 306, stop block. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently 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 protection scope of the utility model.

[0026] Please refer to Figure 1 - Figure 4 As shown in the drawings, the utility model is a luggage wheel with self-locking structure, including connecting structure 1, wheel main body 2 and locking structure 3, wheel main body 2 is fixedly connected on the outer wall of connecting structure 1, locking structure 3 is fixedly connected on the inner wall of connecting structure 1, connecting structure 1 includes shell 104, the outer wall of shell 104 is provided with circular groove 105, rotating rod 301 is rotatably connected on the inner wall of circular groove 105, clamping block 302 is fixedly connected on the outer wall of rotating rod 301, driving block 303 is fixedly connected on the end of rotating rod 301 away from shell 104. The purpose of such arrangement is that, during the use of the equipment, when it is needed to lock wheel main body 2, the user steps down at driving block 303, driving block 303 rotates downward to drive rotating rod 301 and connected clamping block 302 to rotate, clamping block 302 rotates downward to press stop block 306, limiting plate 305 limits rotating rod 301 and clamping block 302, the protrusion of stop block 306 clamps tire 201, so that wheel main body 2 is in the locked state, when it is needed to move wheel main body 2, the foot releases driving block 303, rim 202 is not forced to push stop block 306 and limiting plate 305 to cooperate to rotate upward to drive clamping block 302 and rotating rod 301 to reset, which reduces the security risks of the wheel.

[0027] The outer wall of the shell 104 is provided with a round hole 106, the inner wall of the round hole 106 is provided with a fastener 109, the outer wall of the fastener 109 is sleeved with a fixed plate 304, and the outer wall of the fixed plate 304 is fixedly connected with a limiting plate 305 and a stopper 306. The purpose of such arrangement is that during use of the device, the limiting plate 305 and the stopper 306 connected with the fixed plate 304 are connected in the shell 104 by the fastener 109, and when the brake convex block of the stopper 306 is worn out, the fastener 109 can be removed and replaced.

[0028] The upper surface of the shell 104 is rotatably connected with a rotating block 103, the outer wall of the rotating block 103 is rotatably connected with a mounting plate 101, the rotating block 103 extends to the inner wall of the mounting plate 101, and the upper surface of the mounting plate 101 is provided with four screw holes 102. The purpose of such arrangement is that during use of the device, the structure is installed at the bottom of the luggage case through the screw holes 102 of the mounting plate 101, and the rotating block 103 drives the wheel body 2 connected with the shell 104 to adjust the steering.

[0029] The outer wall of the bottom of the shell 104 is provided with two limiting grooves 107, the inner wall of the limiting groove 107 is rotatably connected with a rotating shaft 110, one end of the rotating shaft 110 is threadedly connected with a fastening nut 108, and one end of the rotating shaft 110 is fixedly connected with a limiting block 111. The fastening nut 108 and the limiting block 111 are on the outer wall of the shell 104 close to the limiting groove 107. The purpose of such arrangement is that during use of the device, the limiting block 111 limits the connection between the rotating shaft 110 and the shell 104, the fastening nut 108 fixes the connection between the other end of the rotating shaft 110 and the shell 104, and when the wheel body 2 needs to be disassembled and replaced, the fastening nut 108 and the two sealing rings 204 can be unscrewed.

[0030] The outer part of the rotating shaft 110 is provided with a rim 202, the outer wall of the rim 202 is provided with a mounting groove 205, and the rim 202 is sleeved on the rotating shaft 110 through the mounting groove 205. The purpose of such arrangement is that during use of the device, the wheel body 2 is sleeved on the rotating shaft 110 through the mounting groove 205.

[0031] The rim 202 is sleeved with a sealing ring 204 close to the connection between the two sides of the rotating shaft 110, the outer wall of the rim 202 is fixedly connected with a tire 201, and the outer wall of the rim 202 is provided with a ventilation groove 203. The purpose of such arrangement is that during use of the device, the sealing ring 204 fixes the two sides of the rim 202 on the rotating shaft 110, the rim 202 drives the tire 201 to repeatedly rub on the ground when rotating, heat is generated in the tire 201, the heat is not dissipated and the wear of the tire 201 is easily accelerated, the heat is conducted to the rim 202, the rim 202 achieves the effect of ventilation and heat dissipation through the ventilation groove 203, and the service life of the wheel body 2 is prolonged.

[0032] In use, during use of the device, when it is necessary to lock the wheel body 2, the user steps down at the driving block 303 with the foot, the driving block 303 rotates downward to drive the rotating rod 301 and the connected clamping block 302 to rotate, the clamping block 302 rotates downward to press the stop block 306, the limiting plate 305 limits the rotating rod 301 and the clamping block 302, the protrusion of the stop block 306 clamps the tire 201, so that the wheel body 2 is in a locked state, when it is necessary to move the wheel body 2, the foot releases the driving block 303, the rim 202 is not forced to push the stop block 306 and the limiting plate 305 to cooperate to drive the clamping block 302 and the rotating rod 301 to rotate back to reset, which reduces the safety hazard of the wheel

[0033] During use of the device, the sealing ring 204 fixes the two sides of the rim 202 on the rotating shaft 110, when the rim 202 rotates to drive the tire 201 to repeatedly rub on the ground, heat is generated in the tire 201, if the heat is not dissipated, the wear of the tire 201 will be accelerated, the heat is conducted to the rim 202, the rim 202 achieves the effect of ventilation and heat dissipation through the ventilation groove 203, and the service life of the wheel body 2 is prolonged.

[0034] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Apparently, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A suitcase wheel with a self-locking structure, comprising a connecting structure (1), a wheel body (2), and a locking structure (3), characterized in that: The wheel body (2) is fixedly connected to the outer wall of the connecting structure (1), and the locking structure (3) is fixedly connected to the inner wall of the connecting structure (1). The connecting structure (1) includes a housing (104). A circular groove (105) is provided on the outer wall of the housing (104). A rotating rod (301) is rotatably connected to the inner wall of the circular groove (105). A locking block (302) is fixedly connected to the outer wall of the rotating rod (301). A driving block (303) is fixedly connected to the end of the rotating rod (301) away from the housing (104).

2. A suitcase wheel with a self-locking structure according to claim 1, characterized in that: A circular hole (106) is provided on the outer wall of the housing (104), and a fastener (109) is provided on the inner wall of the circular hole (106). A fixing plate (304) is sleeved on the outer wall of the fastener (109), and a limit plate (305) and a stop (306) are fixedly connected on the outer wall of the fixing plate (304).

3. A suitcase wheel with a self-locking structure according to claim 1, characterized in that: A rotating block (103) is rotatably connected to the upper surface of the housing (104), and an mounting plate (101) is rotatably connected to the outer wall of the rotating block (103). The rotating block (103) extends to the inner wall of the mounting plate (101), and four screw holes (102) are provided on the upper surface of the mounting plate (101).

4. A suitcase wheel with a self-locking structure according to claim 1, characterized in that: Two limiting grooves (107) are provided on the outer walls of the bottom two sides of the housing (104). A rotating shaft (110) is rotatably connected to the inner wall of the limiting groove (107). A fastening nut (108) is threaded to one end of the rotating shaft (110). A limiting block (111) is fixedly connected to one end of the rotating shaft (110). The fastening nut (108) and the limiting block (111) are located on the outer wall of the housing (104) near the limiting groove (107).

5. A suitcase wheel with a self-locking structure according to claim 4, characterized in that: The shaft (110) has a rim (202) on its outside. The outer wall of the rim (202) has a mounting groove (205). The rim (202) is fitted onto the shaft (110) through the mounting groove (205).

6. A suitcase wheel with a self-locking structure according to claim 5, characterized in that: A sealing ring (204) is fitted on both sides of the rim (202) near the connection with the shaft (110). A tire (201) is fixedly connected to the outer wall of the rim (202). A ventilation groove (203) is provided on the outer wall of the rim (202).

Citation Information

Patent Citations

  • Wheel for luggage case

    CN209610158U