One-key locking universal wheel

Abstract

The utility model discloses a one-key locking universal wheel which comprises a shell, a rolling wheel, a connecting shaft and a shell cover, a pressing part is arranged at one end of the shell, an inner cavity is connected with a linkage part in a sliding mode, the linkage part is in linkage with the pressing part, and the linkage part is matched with the rolling wheel for locking; the universal wheel locking device has the advantages that the problems that a traditional universal wheel locking mode is tedious, the locking structure is poor in stability, dust is prone to being accumulated inside, and the service life is shortened are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of omnidirectional wheel technology, and in particular to a one-click locking omnidirectional wheel. Background Technology

[0002] In modern learning environments, study chairs are widely used to provide students with comfortable sitting support. However, existing study chairs are inadequate in terms of mobility and stability, which affects the learning experience and safety.

[0003] Many study chairs have cumbersome locking mechanisms for their casters. Students must bend over and manually perform multiple steps to secure the chair after adjusting its position, such as tightening with a wrench or rotating the locking knob. This not only wastes time but also interrupts the learning process, interfering with concentration-intensive activities. Furthermore, if the chair cannot be quickly secured during breaks or when students get up, it can easily slide, posing a tripping hazard.

[0004] Furthermore, the locking mechanism of traditional casters lacks stability. During daily use, frequent movement and repositioning of the study chair subject the casters to external forces. On uneven surfaces or when a student accidentally bumps into something, the locking mechanism can easily loosen, causing the chair to slide unintentionally. This not only affects the student's learning but can also lead to safety issues, such as falls and injuries, especially for younger students with weaker balance.

[0005] Meanwhile, traditional caster wheels are not aesthetically pleasing, with their internal structure exposed, making them prone to dust and debris accumulation. Dust and debris can enter the caster wheels, affecting their rotational flexibility, shortening their lifespan, and increasing maintenance costs. Moreover, these caster wheels have poor versatility, requiring different sizes to fit different study chairs, which increases costs for manufacturers and limits consumer choice.

[0006] Therefore, developing a versatile caster wheel that features one-button locking, easy operation, stable locking, an attractive appearance, and high versatility is of great significance for improving the performance and safety of study chairs and creating a better learning environment for students. Utility Model Content

[0007] The purpose of this invention is to provide a one-button locking universal wheel to address the problems of cumbersome locking methods, poor stability of the locking structure, and easy accumulation of dust inside, which shortens the service life of traditional universal wheels.

[0008] This utility model achieves the above objectives through the following technical solutions:

[0009] A one-button locking omnidirectional wheel includes a housing, a roller, a connecting shaft, and an outer cover. One end of the housing is provided with a pressing component, and an inner cavity is slidably connected to a linkage component that is linked with the pressing component. The linkage component cooperates with the roller to lock it.

[0010] Furthermore, the housing is divided into a limiting cavity and a guiding cavity. The limiting cavity has a first limiting groove and a hole at the lower end of the limiting groove. The guiding cavity has a guiding groove inside and a second limiting groove at the end of the guiding groove.

[0011] Furthermore, the inner side of the roller is provided with several positioning teeth.

[0012] Furthermore, the pressing component includes a pressing body, a locking lever, and a first elastic element; the pressing body can slide up and down in the inner cavity of one end of the housing, a guide groove is provided on the lower side of the pressing body, and a wedge-shaped groove is provided on the adjacent side; the two ends of the locking lever are respectively connected to the hole and the guide groove, and one end of the first elastic element is placed in the inner cavity of the lower end of the pressing body, and the other end abuts against the housing.

[0013] Furthermore, the linkage component includes a linkage body and a second elastic element; the first end of the linkage body is wedge-shaped and is adapted to and abuts against the wedge-shaped groove, and the two opposite sides of the end are provided with limit blocks, and the two sets of limit blocks are adapted to the second limit groove and the positioning teeth respectively; one end of the second elastic element is placed in the inner cavity of the end of the linkage body, and the other end abuts against the housing.

[0014] Furthermore, the roller is rotatably connected to the other side of the housing, the connecting shaft is connected to the upper end of the housing, and the outer cover is installed on the outside of the housing by screws to cover the internal components.

[0015] Beneficial effects: This utility model has the following beneficial effects:

[0016] 1. One-button locking via a pressing component eliminates the need for students to bend over and perform complex operations such as tightening with a wrench or rotating the locking knob, greatly saving time and preventing interruptions to their learning. The chair can be quickly secured during breaks or when students get up, effectively reducing the risk of tripping.

[0017] 2. The linkage components and rollers are locked together by positioning teeth and limit blocks. The structure is reasonably designed. In the daily use of the study chair, even if it is frequently moved, adjusted in position, or encounters uneven ground or accidental collisions, it can effectively prevent the locking structure from loosening, avoid the chair from sliding accidentally, ensure the safety of students, and maintain a good learning state.

[0018] 3. It is equipped with an outer cover, which is installed on the outside of the shell. This can effectively cover the internal components, prevent the internal structure from being exposed, and reduce the amount of dust and debris entering the casters. This not only makes the casters look cleaner, but also enhances the overall aesthetics of the study chair.

[0019] 4. The overall structure is scientifically and rationally designed, suitable for various sizes of study chairs, reducing the cost for manufacturers to produce multiple casters to fit different study chairs, and providing consumers with more choices to meet the assembly needs of different study chairs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the shell of this utility model;

[0022] Figure 3 This is a schematic diagram of the pressing component and the linkage component of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the pressing body of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the roller and linkage of this utility model;

[0025] Figure 6 This is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0026] In the diagram: 1-Housing shell, 2-Pressing component, 3-Linking component, 4-Roller, 5-Connecting shaft, 6-Outer shell cover;

[0027] 101-Limiting cavity, 102-Guide cavity, 103-First limiting groove, 104-Hole, 105-Guide groove, 106-Second limiting groove, 201-Pressing body, 202-Locking rod, 203-First elastic element, 301-Linking body, 302-Second elastic element, 401-Positioning tooth, 2011-Guide groove, 2012-Wedge groove, 3011-Limiting block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Combination Figures 1 to 6The one-button locking universal wheel shown includes a housing 1, a roller 4, a connecting shaft 5, and an outer cover 6. One end of the housing 1 is provided with a pressing component 2, and the inner cavity is slidably connected with a linkage component 3 that is linked to the pressing component 2. The linkage component 3 cooperates with the roller 4 to lock. This unique structural design allows the pressing component 2 to quickly drive the linkage component 3 when it moves, and then cooperate closely with the roller 4 to complete the locking action.

[0030] The housing 1 is divided into a limiting cavity 101 and a guide cavity 102. The limiting cavity 101 has a first limiting groove 103, which provides a reliable track for the precise movement and positioning of the locking rod 202. The hole 104 at the lower end of the limiting groove 103 is the key part for connecting the locking rod 202, so that the linkage between the pressing component 2 and other components can be smoothly realized. The guide cavity 102 has a guide groove 105, which provides a precise guiding effect for the movement of the linkage component 3, ensuring that the linkage component 3 will not deviate during the movement, thereby realizing precise linkage with the pressing component 2. The guide groove 105 has a second limiting groove 106 at the end, which perfectly matches the limiting block 3011 at the end of the linkage component 3, further enhancing the stability of the locking structure. Even when the study chair is frequently moved or subjected to external force, it can ensure that the locking structure will not loosen, effectively preventing the chair from sliding accidentally and ensuring the safety and stable learning state of the students.

[0031] The inner side of the roller 4 is provided with several positioning teeth 401. These positioning teeth 401 are one of the key structures for achieving stable locking. When the linkage component 3 is activated, the limiting blocks 3011 on both sides of its end can be tightly embedded between the positioning teeth 401 to form a firm locking relationship. Compared with the simple locking method of traditional universal wheels, this design greatly improves the stability and reliability of locking. In the daily use of the study chair, no matter what complex situation is encountered, such as uneven ground, frequent movement or accidental collision, this tight cooperation between the roller 4 and the linkage component 3 can effectively prevent the locking structure from loosening, ensuring that the chair is always in a stable state and providing students with a safe and stable learning environment.

[0032] The pressing component 2 includes a pressing body 201, a locking lever 202, and a first elastic element 203. The pressing body 201 can smoothly slide up and down within the inner cavity of one end of the housing 1. A guide groove 2011 is provided on its lower side, which is tightly connected to the locking lever 202. When the pressing body 201 moves up and down, the locking lever 202 is activated through the guide groove 2011, thereby achieving linkage with other components. A wedge-shaped groove 2012 is provided on the adjacent side. One end of the first elastic element 203 is placed in the lower inner cavity of the pressing body 201, and the other end... One end abuts against the housing 1, and its function is to provide a reset elastic force after the pressing body 201 is pressed. When the student presses the pressing body 201, the first elastic element 203 is compressed. After releasing, the first elastic element 203 pushes the pressing body to reset. The whole operation process is simple and easy. This design greatly simplifies the locking operation process. Students can quickly lock and unlock the casters by simply pressing, without complicated bending operations, saving time, avoiding interference with learning, and also reducing the safety risks caused by the chair sliding.

[0033] The linkage component 3 includes a linkage body 301 and a second elastic element 302. The first end of the linkage body 301 is wedge-shaped and precisely fits into the wedge-shaped groove 2012. When the pressing body 201 moves, the interaction of the wedge structure can quickly drive the linkage body 301 to move. Limiting blocks 3011 are provided on both opposite sides of the end. The two sets of limiting blocks 3011 are respectively adapted to the second limiting groove 104 and the positioning tooth 401. When the linkage body 301 moves into position, the limiting block 3011 engages with the positioning tooth 401, achieving stable locking. Simultaneously, the other limiting block 3011 abuts against the second limiting groove 104, further... The pressure from the locking of the roller 4 is prevented from causing the limit block 3011 to break due to prolonged stress, thus improving the service life of the linkage 301. The second elastic element 302 is placed at one end in the inner cavity at the end of the linkage 302 and at the other end in contact with the housing 1. Its function is to provide the linkage 302 with the reset power when the lock is released. This design makes the cooperation between the linkage component 3, the pressing component 2 and the roller 4 more tight and stable. While ensuring the convenience of operation, it greatly improves the reliability of locking and effectively solves the problem of unstable locking of traditional universal wheels, providing a strong guarantee for the safe use of the study chair.

[0034] The roller 4 is rotatably connected to the other side of the housing 1, and the connecting shaft 5 is connected to the upper end of the housing 1, providing a stable support for the connection between the caster and the study chair. The outer cover 6 is installed on the outside of the housing 1 with screws to cover the internal components. This not only effectively solves the problem of the traditional caster's internal structure being exposed, making the caster's appearance more concise and beautiful, and improving the overall appearance of the study chair, but also plays a role in preventing dust and debris, reducing the risk of damage to internal parts due to dust accumulation or debris intrusion, extending the service life of the caster, and also reducing the trouble caused by cleaning and maintaining internal components.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A one-button locking universal wheel, comprising a housing (1), a roller (4), a connecting shaft (5), and a housing cover (6), characterized in that: One end of the housing (1) is provided with a pressing component (2), and the inner cavity is slidably connected with a linkage component (3) that is linked with the pressing component (2). The linkage component (3) cooperates with the roller (4) to lock.

2. The one-button locking universal wheel according to claim 1, characterized in that: The housing (1) includes a limiting cavity (101) for placing the pressing component (2) and a guide cavity (102) for placing the linkage component (3). The pressing component (2) moves in the limiting cavity (101) and causes the linkage component (3) to reciprocate in the guide cavity. When the linkage component (3) moves to the top, the pressing component (2) locks. The limiting cavity (101) is provided with a first limiting groove (103), and a hole (104) is provided at the lower end of the limiting groove (103). The inner cavity of the guide cavity (102) is provided with a guide groove (105), and a second limiting groove (106) is provided at the end of the guide groove (105).

3. A one-button locking universal wheel according to claim 2, characterized in that: The inner side of the roller (4) is provided with a plurality of positioning teeth (401). When the linkage component (3) moves to the top, the linkage component (3) locks the positioning teeth (401) to lock the roller (4). When it moves to the lowest point, the linkage component (3) separates from the positioning teeth (401) to unlock the roller (4).

4. A one-button locking universal wheel according to claim 3, characterized in that: The pressing component (2) includes a pressing body (201) that can slide up and down in the limiting cavity (101), a locking rod (202) for pulling the pressing body (201), and a first elastic element (203) that provides elastic force to facilitate the reset of the pressing body (201); a guide groove (2011) is provided on the lower side of the pressing body (201), and a wedge-shaped groove (2012) is provided on the adjacent side; one end of the locking rod (202) rotates in a direction relative to the hole (105). The other end of the connection slides in the guide groove (2011) with the reciprocating motion of the pressing body (201). When the pressing body (201) moves to the highest point, the locking lever (202) hooks the guide groove (2011), and the linkage component (3) moves to the top and locks the positioning tooth (401) to lock the roller (4). One end of the first elastic element (203) is placed in the lower cavity of the pressing body (201), and the other end abuts against the housing (1).

5. A one-button locking universal wheel according to claim 4, characterized in that: The linkage component (3) includes a linkage body (301) that can slide back and forth in the guide groove (105), and a second elastic element (302) that provides elasticity to facilitate the reset of the linkage body (301); the first end of the linkage body (301) is wedge-shaped and is adapted to and abuts against the wedge-shaped groove (2012), and the ends are provided with limit blocks (3011) on both opposite sides. The two sets of limit blocks (3011) are adapted to the second limit groove (104) and the positioning tooth (401) respectively. When the pressing body (201) moves to the highest point, under the action of the wedge-shaped groove (2012), the linkage body (301) moves to the top, and the limit block (3011) and the positioning tooth (401) are engaged to lock; one end of the second elastic element (302) is placed in the inner cavity of the end of the linkage body (302), and the other end abuts against the housing (1).

6. A one-button locking universal wheel according to claim 5, characterized in that: The roller (4) is rotatably connected to the other side of the housing (1), the connecting shaft (5) is connected to the upper end of the housing (1), and the outer cover (6) is installed on the outside of the housing (1) by screws to cover the internal components.

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