Detachable luggage corner wheel with self-locking function

Abstract

The utility model provides a detachable luggage corner wheel with a self-locking function, and belongs to the technical field of moving wheels. A detachable luggage corner wheel with a self-locking function comprises a connecting base used for being connected to a luggage, a containing space is formed in the connecting base, a connecting hole communicated with the containing space is formed in the connecting base, a connecting column is arranged at the bottom of the containing space, a through hole communicated with the containing space is formed in the bottom wall of the connecting base, and the connecting column is arranged at the position close to the through hole. A step structure is arranged on the bottom wall of the connecting seat and is provided with a first step and a second step; and the moving wheels are provided with connecting rods, the connecting rods are provided with annular limiting grooves, the connecting rods can penetrate through the connecting holes, and the annular limiting grooves are formed in the containing space. The self-locking angle wheel shaft has the advantages of being capable of achieving self-locking while locking the angle wheel shaft.

Description

Technical Field

[0001] This utility model belongs to the field of mobile wheel technology, and in particular to a detachable luggage corner wheel with self-locking function. Background Technology

[0002] In the current luggage industry, to improve the portability and ease of movement of luggage, wheels are usually installed at the bottom of the bag for easy dragging. However, existing corner wheel designs for luggage still have certain shortcomings.

[0003] Currently, most luggage corner wheels on the market adopt a fixed or simple detachable structure. However, fixed corner wheels are not easy to replace or repair during use, which affects the service life of the luggage. Some detachable corner wheels have a simpler structure, usually relying on threaded connections or buckle structures for fixation. During use, they are prone to loosening or falling off, reducing the stability and safety of use. In addition, the fixing methods of some existing detachable corner wheels are relatively complicated to disassemble and assemble, requiring tools for disassembly, which is inconvenient and affects the user experience.

[0004] To improve the stability and convenience of luggage corner wheels, some existing technologies use limiting devices to fix the wheels, such as limiting pins or locking structures in the wheel bearings, to prevent the wheels from accidentally falling off during use. However, after long-term use, such structures may fail due to friction and wear, affecting the normal function of the corner wheels. In addition, most existing locking mechanisms rely on elastic components, which are prone to deformation or damage due to long-term stress, thus reducing the locking effect.

[0005] In summary, existing detachable luggage corner wheels still have certain technical shortcomings in terms of stability, ease of assembly and disassembly, and durability. Therefore, there is an urgent need for a detachable luggage corner wheel with a reasonable structure and self-locking function to improve the stability of luggage movement and facilitate user assembly, disassembly, and replacement. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a detachable luggage corner wheel with a self-locking function, which features the ability to lock the corner wheel axle while simultaneously achieving self-locking.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A detachable luggage corner wheel with self-locking function, comprising:

[0009] A connector for attaching to a bag or suitcase, the connector having a receiving space, a connecting hole communicating with the receiving space, a connecting post at the bottom of the receiving space, a through hole communicating with the receiving space on the bottom wall of the connector, and a stepped structure near the through hole on the bottom wall of the connector, the stepped structure having a first step and a second step;

[0010] A movable wheel, the movable wheel having a connecting rod, the connecting rod being provided with an annular limiting groove, the connecting rod being able to pass through the connecting hole, and the annular limiting groove being positioned within the accommodating space;

[0011] A limiting piece, one end of which is rotatably connected to the connecting post so that the limiting piece can rotate around the connecting post. The limiting piece has a limiting part and an insertion hole.

[0012] A switch, comprising a button portion, a self-locking portion, and a connecting portion, wherein the button portion passes through the through hole and is movable within the through hole, the button portion is movable towards or away from the connecting hole, the self-locking portion is movable against the first step or the second step, and the connecting portion passes through the socket and is movable within the socket;

[0013] The switch is movable between a first position and a second position. In the first position, the limiting part is located in the annular limiting groove and the self-locking part abuts against the first step. In the second position, the limiting part disengages from the annular limiting groove and the self-locking part abuts against the second step.

[0014] A first compression spring and a cover plate, the cover plate being fixed on the connecting seat and sealing the accommodating space, the connecting part having an accommodating hole, the first compression spring being partially installed in the accommodating hole and the other end abutting against the cover plate, so that the button is in a state of moving towards the cover plate.

[0015] In the aforementioned detachable luggage corner wheels with self-locking function, the second step is closer to the cover plate than the first step.

[0016] In the aforementioned detachable luggage corner wheel with self-locking function, a limiting structure is provided on the cover plate. In the first position, the limiting structure and the limiting part are located on both sides of the connecting rod.

[0017] In the aforementioned detachable luggage corner wheel with self-locking function, the button part and the connecting part are located at both ends of the switch, and the self-locking part is located in the middle of the switch.

[0018] The aforementioned detachable luggage corner wheels with self-locking function also include a second compression spring.

[0019] One end of the second compression spring is connected to the limiting plate, and the other end is connected to the inner wall of the accommodating space, so that the limiting plate rotates toward the connecting rod.

[0020] In the aforementioned detachable luggage corner wheel with self-locking function, the limiting part has a recessed surface that adapts to the bottom surface of the annular groove, and the recessed surface can fit into the bottom surface of the annular groove.

[0021] Compared with the prior art, this application has the following advantages:

[0022] When the switch moves from the second position to the first position, the user presses the button towards the cover plate and moves the switch towards the connecting rod towards the cover plate until the limiting part on the limiting plate is engaged in the annular limiting groove of the connecting rod. When the user releases the switch, under the action of the first compression spring, the switch automatically moves away from the cover plate and the self-locking part on the switch abuts against the first step, thereby achieving self-locking. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram in this application;

[0024] Figure 2 This is a cross-sectional view of the limiting piece in the second position in this application;

[0025] Figure 3 This is a three-dimensional structural diagram of the limiting piece in the second position in this application;

[0026] Figure 4 This is a cross-sectional view of the limiting piece in the first position in this application;

[0027] Figure 5 This is a three-dimensional structural diagram of the limiting piece in the first position in this application;

[0028] In the picture,

[0029] 2. Connecting seat; 21. Accommodating space; 22. Connecting hole; 23. Connecting post; 24. Through hole; 25. Stepped structure; 251. First step; 252. Second step;

[0030] 3. Moving wheels; 31. Connecting rod; 311. Annular limiting groove;

[0031] 4. Limiting piece; 41. Limiting part; 411. Recessed surface; 42. Insertion hole;

[0032] 5. Switch; 51. Button part; 52. Self-locking part; 53. Connecting part; 531. Receiving hole;

[0033] 6. First compression spring;

[0034] 7. Cover plate; 71. Limiting structure;

[0035] 8. Second compression spring. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] like Figures 1 to 5 As shown, a detachable luggage corner wheel with a self-locking function includes: a connecting seat 2 for connecting to the luggage, a movable wheel 3, a limiting piece 4, a switch 5, a first compression spring 6, and a cover plate 7. The connecting seat 2 has an accommodating space 21, and a connecting hole 22 communicating with the accommodating space 21. A connecting post 23 is provided at the bottom of the accommodating space 21. A through hole 24 communicating with the accommodating space 21 is opened on the bottom wall of the connecting seat 2. Near the through hole 24, a stepped structure 25 is provided on the bottom wall of the connecting seat 2. The stepped structure 25 has a first step Step 251, second step 252; the movable wheel 3 has a connecting rod 31, the connecting rod 31 is provided with an annular limiting groove 311, the connecting rod 31 can pass through the connecting hole 22, and the annular limiting groove 311 is set in the accommodating space 21; one end of the limiting piece 4 is rotatably connected to the connecting post 23, so that the limiting piece 4 rotates around the connecting post 23, the limiting piece 4 has a limiting part 41, and the limiting piece 4 is provided with an insertion hole 42; the switch 5 includes a button part 51, a self-locking part 52 and a connecting part 53, the button part 51 passes through the through hole 24, and can pass through the through hole The button portion 51 can move closer to or further away from the connecting hole 22, and the self-locking portion 52 can abut against the first step 251 or the second step 252. The connecting portion 53 passes through the socket 42 and can slide within the socket 42. The switch 5 can move between a first position and a second position. In the first position, the limiting portion 41 is located within the annular limiting groove 311, and the self-locking portion 52 abuts against the first step 251. In the second position, the limiting portion 41 disengages from the annular limiting groove 311, and the self-locking portion 52 abuts against the second step 251. On step 252, cover plate 7 is fixed on connecting seat 2 and closes accommodating space 21. Connecting part 53 has accommodating hole 531. Part of the first compression spring 6 is installed in accommodating hole 531 and the other end abuts against cover plate 7 so that button is in a state of moving towards cover plate 7. Cover plate 7 is fixed on connecting seat 2 and closes accommodating space 21. Connecting part 53 has accommodating hole 531. Part of the first compression spring 6 is installed in accommodating hole 531 and the other end abuts against cover plate 7 so that button is in a state of moving towards cover plate 7.

[0038] In this application, the corner wheel of the luggage achieves self-locking and disassembly functions through multiple internally cooperating structures. Specifically, when the user operates the button part 51, the button moves within the through hole 24, thereby driving the connecting part 53 and the self-locking part 52 to move together.

[0039] In the first position: the self-locking part 52 of the switch 5 abuts against the first step 251, and at the same time, the limiting part 41 on the limiting piece 4 is exactly in the annular limiting groove 311 on the connecting rod 31 of the moving wheel 3. In this state, the engagement of the limiting part 41 and the annular limiting groove 311 ensures the fixed connection between the moving wheel 3 and the connecting seat 2, so that the corner wheel is in a locked state, preventing accidental disassembly or movement during use.

[0040] In the second position: the button part 51 is pushed to a position away from the connecting hole 22, and the self-locking part 52 contacts the second step 252, causing the limiting piece 4 to rotate, so that the limiting part 41 on it disengages from the annular limiting groove 311. At this time, the connection between the moving wheel 3 and the connecting seat 2 is released from the self-locking state, thereby realizing the disassembly of the corner wheel, which is convenient for maintenance, cleaning or replacement of parts.

[0041] When switch 5 moves from the second position to the first position, button part 51 moves toward connecting rod 31 until the limiting part 41 on the limiting piece 4 is engaged in the annular limiting groove 311 of connecting rod 31. Under the action of the first compression spring 6, switch 5 automatically moves away from cover plate 7 and the self-locking part 52 on switch 5 abuts against the first step 251, thereby achieving self-locking.

[0042] Specifically, the second step 252 is closer to the cover plate 7 than the first step 251.

[0043] Specifically, a limiting structure 71 is provided on the cover plate 7. In the first position, the limiting structure 71 and the limiting part 41 are located on both sides of the connecting rod 31.

[0044] When the limiting structure 71 on the cover plate 7 is symmetrically distributed with the limiting parts 41 on both sides of the connecting seat 2, it can bear the external force more evenly, reduce the problem of uneven force on one side, and thus improve the stability of the overall structure.

[0045] Specifically, the button part 51 and the connecting part 53 are distributed at both ends of the switch 5, and the self-locking part 52 is provided in the middle of the switch 5.

[0046] Specifically, it also includes a second compression spring 8, one end of which is connected to the limiting plate 4 and the other end is connected to the inner wall of the accommodating space 21, so that the limiting plate 4 rotates toward the connecting rod 31.

[0047] When the second position moves toward the first position, the user only needs to release the switch 5. Under the action of the second pressure spring 8, the self-locking part 52 of the switch 5 can automatically disengage from the second step 252 and automatically enter the first adjustment 251. Thus, the limiting part 41 on the switch 5 automatically enters the annular limiting groove 311 for locking and limiting.

[0048] Specifically, the limiting part 41 has a recessed surface 411 that adapts to the bottom surface of the annular groove, and the recessed surface 411 can fit the bottom surface of the annular groove.

[0049] The fit between the concave surface 411 and the bottom surface of the annular groove increases the contact area between the limiting part 41 and the annular limiting groove 311, thereby increasing the portion of the limiting part 41 that is engaged in the annular limiting groove 311. During the use of the bag, even if it is subjected to a large external impact, vibration or frequent turning force, the moving wheel 3 can be more stably connected to the connecting seat 2, effectively reducing the possibility of the moving wheel 3 shaking, displacing or even detaching relative to the connecting seat 2, thereby ensuring the stability and safety of the bag's movement.

[0050] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture, as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0051] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0052] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0053] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A detachable luggage corner caster with self-locking function, characterized in that, The utility model relates to a connecting seat (2) for connecting on the luggage, the connecting seat (2) has the accommodation space (21) on it, the connecting hole (22) that is communicated with the accommodation space (21) is provided on the connecting seat (2), the bottom of the accommodation space (21) is provided with the connecting column (23), the bottom wall of the connecting seat (2) is provided with the through -hole (24) that is communicated with the accommodation space (21), the bottom wall of the connecting seat (2) is provided with the step structure (25) in the position close to the through -hole (24), the step structure (25) has the first step (251), the second step (252). The utility model relates to a mobile wheel (3), the connecting rod (31) has the annular limit slot (311) on it, the connecting rod (31) can pass through the connecting hole (22), and the annular limit slot (311) is arranged in the accommodation space (21). The utility model relates to a limit sheet (4), one end of the limit sheet (4) is rotatably connected on the connecting column (23), so that the limit sheet (4) rotates around the connecting column (23), the limit sheet (4) has the limit part (41) on it, and the limit sheet (4) is provided with the insertion hole (42). The utility model relates to a switch (5), which comprises a button part (51), a self-locking part (52) and a connecting part (53), the button part (51) passes through the through -hole (24) and can move in the through -hole (24), the button part (51) can be close to the connecting hole (22) or away from the connecting hole (22), the self-locking part (52) can abut on the first step (251) or the second step (252), and the connecting part (53) passes through the insertion hole (42) and can slide in the insertion hole (42). Wherein, the switch (5) can move between the first position and the second position, when the first position, the limit part (41) is located in the annular limit slot (311), and the self-locking part (52) abuts on the first step (251), when the second position, the limit part (41) is separated from the annular limit slot (311), and the self-locking part (52) abuts on the second step (252). The utility model relates to a first compression spring (6) and a cover plate (7), the cover plate (7) is fixed on the connecting seat (2) and closes the accommodation space (21), the connecting part (53) is provided with the accommodation hole (531), one end of the first compression spring (6) is arranged in the accommodation hole (531) and the other end abuts on the cover plate (7), so that the button is in the state of moving towards the cover plate (7). The second step (252) is closer to the cover plate (7) than the first step (251).

2. The detachable luggage corner caster with self-locking function according to claim 1, characterized in that, The cover plate (7) is provided with a limit structure (71), when the first position, the limit structure (71) and the limit part (41) are located on both sides of the connecting rod (31).

3. The detachable luggage corner caster with self-locking function according to claim 1, characterized in that, The button part (51) and the connecting part (53) are distributed on both ends of the switch (5), and the self-locking part (52) is arranged in the middle of the switch (5).

4. The detachable luggage corner caster with self-locking function according to claim 1, characterized in that, ​ 5. The detachable luggage corner caster with self-locking function according to claim 1, characterized in that, The second compression spring (8) is connected to the limiting sheet (4) at one end and to the inner wall of the accommodating space (21) at the other end, so that the limiting sheet (4) rotates towards the connecting rod (31).

6. The detachable luggage corner caster with self-locking function according to claim 1, characterized in that, The limiting part (41) has a recessed surface (411) matching the bottom surface of the annular groove, and the recessed surface (411) can be attached to the bottom surface of the annular groove.

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