Roller skate capable of quickly adjusting size

Abstract

The utility model discloses a roller skate capable of quickly adjusting the size. The roller skate comprises a toe cap 1, a heel part 2, a sole part 3 and a size adjusting device 4, wherein the size adjusting device 4 adopts a Scotch yoke mechanism connecting rod design, a vertical middle shaft 14 is arranged in the middle of the size adjusting device 4, a threaded part 9 is arranged on the middle shaft 14, a disc 7 is arranged at the upper end of the middle shaft 14, a sliding groove 8 is formed in the disc 7, and the sliding groove 8 is connected with a connecting rod 5; the threaded part 9 is connected with a rotating screw rod 11, and the other end of the rotating screw rod 11 is fixed on the shoe sole part 3, so that the rotating screw rod 11 is rotated to drive the threaded part 9 to rotate, the disc 7 is further rotated, the sliding groove 8 is driven, and the connecting rod 5 is further made to move longitudinally; the left end of the connecting rod 5 is connected with the toe cap 1, and the right end is connected with the heel part 2. The utility model has the beneficial effects that the size can be easily adjusted, and the design that the threaded sleeve can be easily replaced is adopted, so that the maintenance cost is reduced, and the movement safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts, and particularly relates to a roller skate with a quickly adjustable size. Background Art

[0002] Nowadays, in terms of sports and entertainment, skating practice involves more and more children. As is well known, these children will be affected by the rapid changes in children's growth in a relatively short period of time, and their foot shapes change rapidly. Therefore, roller skates that can adapt to the increase in foot size are needed. From an economic perspective, such roller skates are very beneficial because they can be used by the same person for a long period of their service life. In addition, adjustable-size roller skates are particularly beneficial in the roller skate rental business because it is highly desirable for the same pair of roller skates to accommodate feet of different sizes.

[0003] Currently, many examples of roller skates with size adjustment mechanisms and various designs are known. For example, Chinese Patent No. CN1787859A discloses adjustable roller skates that can accommodate feet of different sizes, and its telescopic rod can adjust the size of the roller skates by changing its own longitudinal dimension and rotating around its own longitudinal axis. In addition, Chinese Utility Model Patent No. CN2922533Y has a size adjustment device and a sliding connection device added to its structure compared to ordinary roller skates. Another example is Chinese Utility Model: ZL20042009.4671.0, which discloses a "telescopic roller skate", and its main structural feature is to use an eccentric handle locking mechanism to achieve size adjustment and positioning.

[0004] Although the above three are relatively simple to operate, after the size is adjusted, taking the first one as an example, there is no good restraint setting for the space of its telescopic rod. Moreover, if the threaded parts fail and cause mechanism failure, it is easy to result in poor firmness between the toe and the sole during skating, affecting the skating effect and seriously endangering the safety of the user / wearer.

[0005] In view of this, there is an urgent need to develop a roller skate with a quickly adjustable size that is not only labor-saving, but also the threaded parts are easily replaceable kits, which can not only reduce the maintenance cost, but also further improve sports safety. Summary of the Utility Model

[0006] The utility model aims to solve at least one of the above technical problems to a certain extent.

[0007] For this purpose, the purpose of the utility model is to provide a roller skate with a quickly adjustable size, which is not only labor-saving, but also the threaded parts are easily replaceable kits, which can not only reduce the maintenance cost, but also further improve sports safety.

[0008] To achieve the above object, an embodiment of the present utility model discloses a roller skate with a quickly adjustable size, including: a shoe tip 1, a heel part 2, a shoe bottom 3 and a size adjusting device 4; wherein, the size adjusting device 4 adopts a Scotch yoke mechanism link design, a vertical central axis 14 is arranged in the middle of the size adjusting device 4, a threaded part 9 is arranged on the central axis 14, a disc 7 is arranged at the upper end of the central axis 14, a chute 8 is arranged on the disc 7, and the chute 8 is connected with a link 5; the threaded part 9 is connected with a rotating screw 11, the other end of the rotating screw 11 is fixed on the shoe bottom 3, so that rotating the rotating screw 11 drives the threaded part 9 to rotate, further rotating the disc 7, driving the chute 8, and further longitudinally moving the link 5; the left end of the link 5 is connected with the shoe tip 1, and the right end is connected with the heel part 2.

[0009] In addition, the roller skate with a quickly adjustable size according to the above technical solution of the present utility model may further have the following additional technical features:

[0010] Optionally, chute support rods 6 are respectively arranged on both sides of the disc 7 of the link 5.

[0011] Optionally, a slider 10 is arranged on the disc 7, a groove is arranged in the middle of the chute 8, and the slider 10 slides in the groove.

[0012] Optionally, the chute 8 and the link 5 are of an integral structure.

[0013] Optionally, the rotating screw 11 is a threaded hollow slide cylinder, a shaft rod 12 is connected in the middle of the slide cylinder, the other end of the shaft rod 12 is connected with a fixing block 13, and the fixing block 13 is fixed on the shoe bottom 3; wherein, the rotating screw 11, the shaft rod 12 and the fixing block 13 are integral parts.

[0014] Optionally, the materials of the link 5, the threaded part 9 and the central axis 14 are one of steel or aluminum alloy.

[0015] The beneficial effects of the present utility model are as follows: a Scotch yoke size adjusting device is arranged at the rear end of the shoe sole and the shoe tip, so that the connection between the shoe body and the shoe tip is more firm, there is no need to repeatedly lock the connecting piece with great effort, the size adjustment can be easily realized, and a replaceable thread kit design is adopted, so that the maintenance cost is reduced and the sports safety is improved. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a roller skate with a quickly adjustable size provided by an embodiment of the present utility model;

[0017] Figure 2It is a schematic structural diagram of a size adjustment device for a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model;

[0018] Figure 3 It is a sectional view of a size adjustment device for a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model;

[0019] Figure 4 It is a schematic structural diagram of a rotating screw for a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model;

[0020] Figure 5 It is a schematic diagram of a first state of a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model;

[0021] Figure 6 It is a schematic diagram of a second state of a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model.

[0022] Reference numerals:

[0023] 1 - toe cap; 2 - heel part; 3 - sole; 4 - size adjustment device; 5 - connecting rod; 6 - chute support rod; 7 - disc; 8 - chute; 9 - threaded part; 10 - slider; 11 - rotating screw; 12 - shaft rod; 13 - fixing block; 14 - central shaft. Detailed implementation manners

[0024] The embodiments of the present utility model are described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or components / elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0025] Figure 1 It is a schematic structural diagram of a roller skate with a size that can be quickly adjusted provided by an embodiment of the present utility model; Figure 2 It is a schematic structural diagram of a size adjustment device for a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model; Figure 3 It is a sectional view of a size adjustment device for a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model; Figure 4 It is a schematic structural diagram of a rotating screw for a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model; Figure 5 It is a schematic diagram of a first state of a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model; Figure 6 It is a schematic diagram of a first state of a roller skate with a size that can be quickly adjusted provided by another embodiment of the present utility model. AsFigures 1-6 As shown in the figure, the roller skates with quickly adjustable size include: a shoe toe 1, a heel part 2, a shoe bottom 3 and a size adjustment device 4; among them, the size adjustment device 4 adopts a Scotch yoke mechanism connecting rod design. A vertical central shaft 14 is provided in the middle of the size adjustment device 4. A threaded part 9 is provided on the central shaft 14. A disc 7 is provided at the upper end of the central shaft 14. A chute 8 is provided on the disc 7. The chute 8 is connected with a connecting rod 5; the threaded part 9 is connected with a rotating screw 11. The other end of the rotating screw 11 is fixed on the shoe bottom 3. Thus, rotating the rotating screw 11 drives the threaded part 9 to rotate, further causing the disc 7 to rotate, and driving the chute 8, and further causing the connecting rod 5 to move longitudinally; the left end of the connecting rod 5 is connected to the shoe toe 1, and the right end is connected to the heel part 2.

[0026] Specifically, when it is necessary to adjust the length of the roller skates, the rotating screw 11 connected to the Scotch yoke can be rotated clockwise. The rotating screw 11 drives the threaded part 9 of the Scotch yoke, and then drives the disc 7 of the Scotch yoke. The slider is driven by the rotation of the disc and pushes the inner wall of the chute in the chute 8 to move towards the shoe toe direction, and then drives the connecting rod 5 to extend longitudinally. On the contrary, when it is necessary to reduce the length of the roller skates, the rotating screw 11 connected to the Scotch yoke can be rotated counterclockwise. The screw drives the threaded bearing 9 of the Scotch yoke, and then drives the disc slider of the Scotch yoke. The slider is driven by the rotation of the disc and pushes the inner wall of the chute in the chute 8 to move towards the shoe toe direction, and then drives the connecting rod 5 to contract longitudinally.

[0027] A size adjustment device and a sliding connection device are arranged at the rear end of the shoe sole and the shoe toe. The Scotch yoke connecting rod is paired with a rotating screw, so that the shoe body and the shoe toe can quickly realize size adjustment through the telescopic adjustment device of the Scotch yoke structure, without having to exert great effort to repeatedly lock the connecting parts.

[0028] For the roller skates with quickly adjustable size according to the present invention, its size can be adjusted without affecting the fastening state of the components constituting the roller skates, and it can easily and conveniently adapt to the user's feet even when worn. Its size can be manually adjusted repeatedly without the need for any specific tools. The threaded parts for size adjustment are designed outside the shoe and are designed as quickly replaceable modules, reducing the difficulty of maintenance due to damage and malfunction of the threaded parts.

[0029] According to an embodiment of the present invention, chute support rods 6 are respectively arranged on both sides of the disc 7 of the connecting rod 5.

[0030] Specifically, the function of the chute support rod 6 is to enable the connecting rod 5 to move in a specified position to prevent the connecting rod 5 from shifting and causing the shoe toe to be distorted.

[0031] It should be noted that the chute support rod 6 can be fixed on the shoe bottom 3.

[0032] According to an embodiment of the present utility model, a slider 10 is provided on a disc 7, and a groove is provided in the middle of a chute 8, and the slider 10 slides in the groove.

[0033] Specifically, when the disc 7 rotates, the slider 10 is driven by the rotation of the disc 7 and pushes the inner wall of the chute 8 in the chute 8 to move towards the toe direction, thereby driving the connecting rod 5 to extend longitudinally. As Figures 5-6 shown, when the disc 7 rotates to only two state positions, since the disc 7 is fixed and the toe 1 is far from or close to the disc 7, the function of adjusting the length is realized.

[0034] According to an embodiment of the present utility model, the chute 8 and the connecting rod 5 are of an integral structure.

[0035] Specifically, the integral structure can ensure that no abnormal connection occurs between the chute 8 and the connecting rod 5, and ensure the reliable adjustment of the size.

[0036] According to an embodiment of the present utility model, the rotating screw 11 is a hollow sliding cylinder with threads, a shaft rod 12 is connected in the middle of the sliding cylinder, and the other end of the shaft rod 12 is connected with a fixing block 13, and the fixing block 13 is fixed on the shoe bottom 3; wherein, the rotating screw 11, the shaft rod 12 and the fixing block 13 are integral parts.

[0037] Specifically, the rotating screw 11 is a hollow sliding cylinder, which can be sleeved and connected with the shaft rod 12, and the shaft rod 12 and the fixing block 13 are fixed on the shoe bottom 3, so as to ensure that the screw 11 can be rotated and adjusted, and at the same time ensure the relatively stable position of the rotating screw 11.

[0038] According to an embodiment of the present utility model, the materials of the connecting rod 5, the threaded part 9 and the central shaft 14 are one of steel or aluminum alloy.

[0039] Specifically, the connecting rod 5, the threaded part 9 and the central shaft 14 are components that are subjected to relatively large stresses, and metal parts with higher strength can be selected for production, and specifically, steel or aluminum alloy can be selected.

[0040] The above embodiments are the preferred implementation solutions of the present application. In addition, the present application can also be implemented in other ways. Any obvious replacement without departing from the concept of the present application is within the protection scope of the present application.

Claims

1. A roller skate with a quickly adjustable size, characterized in that, Including: Toe cap (1), heel part (2), sole (3) and size adjustment device (4); Among them, the size adjustment device (4) adopts a Scotch yoke mechanism link design. A vertical central axis (14) is provided in the middle of the size adjustment device (4). A threaded part (9) is provided on the central axis (14). A disc (7) is provided at the upper end of the central axis (14). A chute (8) is provided on the disc (7). The chute (8) is connected to a link (5); the threaded part (9) is connected to a rotating screw (11). The other end of the rotating screw (11) is fixed on the sole (3). Thus, rotating the rotating screw (11) drives the threaded part (9) to rotate, further causing the disc (7) to rotate, driving the chute (8), and further causing the link (5) to move longitudinally; the left end of the link (5) is connected to the toe cap (1), and the right end is connected to the heel part (2).

2. The roller skates capable of quickly adjusting the size according to claim 1 are characterized in that: Chute support rods (6) are respectively provided on both sides of the disc (7) of the link (5).

3. The roller skates capable of quickly adjusting the size according to claim 1, characterized in that: A slider (10) is provided on the disc (7). A groove is provided in the middle of the chute (8). The slider (10) slides in the groove.

4. A roller skate capable of quickly adjusting the size according to claim 1, characterized in that: The chute (8) and the link (5) are of an integral structure.

5. A roller skate capable of quickly adjusting the size according to claim 1, characterized in that: The rotating screw (11) is a threaded hollow sliding cylinder. A shaft rod (12) is connected in the middle of the sliding cylinder. The other end of the shaft rod (12) is connected to a fixing block (13). The fixing block (13) is fixed on the sole (3); among them, the rotating screw (11), the shaft rod (12) and the fixing block (13) are integral parts.

6. A roller skate capable of quickly adjusting the size according to claim 1, characterized in that: The materials of the link (5), the threaded part (9) and the central axis (14) are one of steel or aluminum alloy.

Images