Concealed coding wheel skate

By using a hidden adjustable size roller skate design, the skate size can be adjusted effortlessly using a screw and lever arm assembly, and the foot support is maintained through an interlaced hollow structure, thus solving the problems of adaptability and stability of roller skates and improving the user experience.

CN224462223UActive Publication Date: 2026-07-07东莞市乐可得运动器材有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
东莞市乐可得运动器材有限公司
Filing Date
2025-06-06
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing roller skates are difficult to adapt to the needs of users with different foot lengths. Adjusting the shoe size is laborious and affects stability and comfort.

Method used

It adopts a concealed adjustment structure, including components such as screw, lever arm, sliding shaft and pull ring, which reduces the operating force through the lever principle and maintains foot support stability through the interlaced hollow structure.

Benefits of technology

It enables convenient shoe size adjustment, reduces the difficulty of operation, and improves the versatility, stability and comfort of roller skates.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224462223U_ABST
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Abstract

The utility model relates to the technical field of roller skate shoes, specifically relates to a hidden type code adjusting roller skate shoe, including sole, vamp, inner shoe body and adjusting assembly, the vamp sewing connection is established on the sole, the inner shoe body is slidably installed on the sole, is seted up with the mounting groove in the sole, adjusting assembly is worn in the mounting groove, the inner shoe body is driven and is connected with adjusting assembly, through the design and cooperation of mounting groove, adjusting assembly, inner shoe body etc.
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Description

Technical Field

[0001] This utility model relates to the field of roller skate technology, specifically a hidden adjustable roller skate. Background Technology

[0002] Roller skates are a special type of footwear with wheels fixed to the sole. Users can propel themselves forward by pushing off the ground. Their core function is to provide a way of moving close to the ground, different from walking or cycling. They serve as a means of transportation, exercise, and leisure. People can wear them to perform various activities such as speed skating, freestyle tricks, and roller hockey, experiencing the joy of smooth skating and improving their balance and coordination. Their most distinctive feature is that the sole is equipped with multiple wheels (single or double rows, commonly four wheels), making them synonymous with "gliding" on land.

[0003] Roller skates are widely used in various occasions such as leisure and entertainment, sports and fitness, and competition performances, but they still have certain problems: 1) Some roller skates are usually designed only with a fixed size, which is difficult to adapt to the needs of users with different foot lengths; 2) When adjusting the size of some adjustable roller skates, the power arm is often too short, which means that users need to exert more force to turn the power arm to drive the screw, making the adjustment process more strenuous and increasing the difficulty of operation, especially for children or users with less strength, who may find it difficult to easily adjust the size; 3) After the size of some roller skates is adjusted, the support structure of the sole changes, resulting in insufficient support for the foot, affecting the stability and safety of the user during roller skating, and also affecting foot comfort; Therefore, in view of the above situation, there is an urgent need to develop a hidden adjustable roller skate to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a concealed adjustable roller skate to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a concealed adjustable roller skate, comprising a sole, an upper, an inner shoe body, and an adjustment component. The upper is sewn to the sole, the inner shoe body is slidably mounted on the sole, an installation groove is provided in the sole, the adjustment component is inserted into the installation groove, and the inner shoe body is drivenly connected to the adjustment component.

[0006] The inner shoe body includes shoe body a and shoe body b. Shoe body a is slidably mounted on the sole, and shoe body b is fixedly mounted on the sole.

[0007] The adjustment assembly includes a screw, a bearing support, a follower, a positioning component, a sliding shaft, a lever arm, and a pull ring. The screw is rotatably mounted in the mounting groove via the bearing support. An internally threaded cylinder is fixedly connected inside the follower and is sleeved on the screw. One end of the screw passes through and extends to the outside of the sole. The positioning component is sleeved on the end of the screw located outside the sole and is rotatably connected to the screw. The positioning component is fixedly connected to the sole. The sliding shaft and the lever arm are slidably mounted inside the screw. The two ends of the lever arm are rotatably connected to the sliding shaft and the pull ring, respectively.

[0008] In practical use, when adjusting shoe size, the lever arm unfolds to form a force-saving lever, greatly reducing the operating force required to turn the screw; when not in use, the lever arm can be completely retracted into the screw, maintaining a compact and smooth structure, avoiding snagging or bumping of exposed parts, while improving aesthetics and portability.

[0009] Preferably, a blade holder is installed at the bottom of the shoe sole, and several wheels are installed on the blade holder.

[0010] Preferably, the shoe body a has a hollow area a, the shoe body b has a hollow area b, and the hollow areas a and b are arranged alternately.

[0011] In practical use, the staggered hollow structure ensures that the hollow areas are always staggered and complementary during dynamic adjustment, ensuring that the foot support surface is complete and without gaps; it avoids local suspended areas caused by size changes, eliminates the risk of foot discomfort, and ensures foot comfort and stability.

[0012] Preferably, a connecting groove is provided on the bottom edge of the shoe body a, and the shoe body a is fixedly connected to the follower through the connecting groove.

[0013] In practical use, when the follower moves, it works with the connecting groove to move the shoe body a, thereby achieving shoe size adjustment.

[0014] Preferably, one end of the screw has an external thread, and the other end of the screw has a groove inside, with a keyway on the inner wall of the groove.

[0015] Preferably, a key is fixed on the outer wall of the sliding shaft, the key is adapted to the keyway, and the sliding shaft and the lever arm are slidably connected to the keyway.

[0016] In practical use, the key and keyway meshing ensures that the sliding shaft slides precisely in the screw, preventing rotational deviation; when the lever arm is extended, the keyway forcibly transmits torque, so that the lever driving force is efficiently converted into screw rotation; in the storage state, the keyway system ensures that the lever arm and sliding shaft assembly retract in a straight line along the slideway, achieving compact concealment.

[0017] Preferably, a through hole is provided in the middle of the positioning element, and the inner diameter of the through hole is the same as the inner diameter of the slide groove.

[0018] In practical use, the through hole and the inner diameter of the slide groove are consistent to ensure that the extension and retraction trajectory of the lever arm is precisely aligned. At the same time, the key of the sliding shaft is blocked by the inner wall of the through hole to form a physical limit, which not only maintains the stability of the component operation, but also completely eliminates the risk of parts accidentally falling out during storage / expansion.

[0019] Preferably, the outer wall of the positioning element has several positioning grooves distributed in a radiating pattern around the axis.

[0020] Preferably, the pull ring can engage with the positioning groove.

[0021] In practical use, through the coordinated action of several radiating positioning grooves and the pull ring, the pull ring can be engaged in any positioning groove to form a mechanical self-lock, forcibly fixing the screw rotation angle and completely eliminating the risk of thread rewinding caused by motion vibration; the radiating groove layout is compatible with multiple adjustment positions, allowing the pull ring to be quickly locked at any stop position, ensuring the absolute stability of the size adjustment result.

[0022] Compared with the prior art, this utility model provides a concealed adjustable roller skate, which has the following beneficial effects:

[0023] Through the design and coordination of the mounting slot, adjustment components, and inner shoe body, shoe size can be easily adjusted to meet the needs of users with different foot lengths, improving versatility and adaptability. The screw, lever arm, sliding shaft, and pull ring of the adjustment component work together to drive the screw to rotate and adjust the shoe size. When the screw is rotated to adjust the shoe size, the pull ring extends the lever arm. Due to the long lever arm, based on the lever principle, it is easier to operate when adjusting the shoe size, reducing the difficulty and labor intensity of operation for users and improving ease of use. The staggered hollow areas on soles a and b ensure that the sole still provides sufficient support for the user's foot after the shoe size is adjusted and shifted, ensuring the stability and safety of the roller skates and effectively avoiding the instability that may be caused by shoe size adjustment. This comprehensively improves the performance and user experience of the roller skates. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0026] Figure 2 This is a side view of the adjustment component of this utility model;

[0027] Figure 3This is a schematic diagram of the adjustment component structure of this utility model;

[0028] Figure 4 This is one of the schematic diagrams showing the positional relationship between the sliding shaft and the lever arm of this utility model;

[0029] Figure 5 This is the second schematic diagram showing the positional relationship between the sliding shaft and the lever arm of this utility model;

[0030] Figure 6 This is an exploded view of the adjustment component of this utility model;

[0031] Figure 7 This utility model Figure 6 Enlarged view of part A;

[0032] Figure 8 This is a side view of the positioning component of this utility model;

[0033] Figure 9 This is a schematic diagram of the inner shoe body structure of this utility model;

[0034] Figure 10 This is a schematic diagram of the bottom structure of the inner shoe body of this utility model.

[0035] In the diagram: 10, sole; 20, upper; 30, inner shoe body; 310, shoe body a; 311, hollowed-out area a; 312, connecting groove; 320, shoe body b; 321, hollowed-out area b; 40, tool holder; 410, wheel; 50, adjusting component; 510, screw; 511, external thread; 512, slide groove; 513, keyway; 520, bearing support; 530, follower; 531, internal threaded cylinder; 540, positioning component; 541, positioning groove; 550, sliding shaft; 551, key; 560, lever arm; 570, pull ring. Detailed Implementation

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

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Example:

[0039] Please see Figures 1-10 This utility model provides a technical solution: a hidden adjustable roller skate, including a sole 10, an upper 20, an inner shoe body 30 and an adjustment component 50. The upper 20 is sewn to the sole 10, the inner shoe body 30 is slidably mounted on the sole 10, the sole 10 has an installation groove, the adjustment component 50 is inserted into the installation groove, and the inner shoe body 30 is drivenly connected to the adjustment component 50.

[0040] The inner shoe body 30 includes shoe body a310 and shoe body b320. Shoe body a310 is slidably disposed on the sole 10, and shoe body b320 is fixedly disposed on the sole 10.

[0041] The adjustment assembly 50 includes a screw 510, a bearing support 520, a follower 530, a positioning member 540, a sliding shaft 550, a lever arm 560, and a pull ring 570. The screw 510 is rotatably mounted in the mounting groove via the bearing support 520. An internally threaded cylinder 531 is fixedly connected inside the follower 530 and is sleeved on the screw 510. One end of the screw 510 passes through and extends to the outside of the sole 10. The positioning member 540 is sleeved on the end of the screw 510 located outside the sole 10 and is rotatably connected to the screw 510. The positioning member 540 is fixedly connected to the sole 10. The sliding shaft 550 and the lever arm 560 are slidably mounted inside the screw 510. The two ends of the lever arm 560 are rotatably connected to the sliding shaft 550 and the pull ring 570, respectively.

[0042] In practical use, when adjusting shoe size, the lever arm 560 unfolds to form a force-saving lever, greatly reducing the operating force required to turn the screw 510; when not in use, the lever arm 560 can be completely retracted into the screw 510, maintaining a compact and smooth structure, avoiding snagging or bumping of exposed parts, while improving aesthetics and portability.

[0043] Preferably, a blade holder 40 is installed on the bottom of the shoe sole 10, and several wheels 410 are installed on the blade holder 40.

[0044] Preferably, the shoe body a310 has a hollow area a311, and the shoe body b320 has a hollow area b321, with the hollow areas a311 and b321 being arranged alternately.

[0045] In practical use, the staggered hollow structure ensures that the hollow areas are always staggered and complementary during dynamic adjustment, ensuring that the foot support surface is complete and without gaps; it avoids local suspended areas caused by size changes, eliminates the risk of foot discomfort, and ensures foot comfort and stability.

[0046] Preferably, a connecting groove 312 is provided on the bottom edge of the shoe body a310, and the shoe body a310 is fixedly connected to the follower 530 through the connecting groove 312.

[0047] In practical use, when the follower 530 moves, it works with the connecting groove 312 to drive the shoe body a310 to move, thereby realizing the shoe size adjustment.

[0048] Preferably, one end of the screw 510 is provided with an external thread 511, and the other end of the screw 510 is provided with a groove 512, and the inner wall of the groove 512 is provided with a keyway 513.

[0049] Preferably, a key 551 is fixed on the outer wall of the sliding shaft 550, the key 551 is adapted to the keyway 513, and the sliding shaft 550 and the lever arm 560 are slidably connected to the sliding groove 512.

[0050] In practical use, the engagement of key 551 and keyway 513 ensures that the sliding shaft 550 slides precisely within the screw 510, preventing rotational deviation; when the lever arm 560 is extended, the keyway forces the transmission of torque, so that the lever driving force is efficiently converted into the rotation of the screw 510; in the storage state, the keyway system ensures that the lever arm 560 and sliding shaft 550 components retract linearly along the slide groove 512, achieving compact concealment.

[0051] Preferably, a through hole is provided at the middle position of the positioning member 540, and the inner diameter of the through hole is the same as the inner diameter of the slide groove 512.

[0052] In practical use, the inner diameter of the through hole and the slide groove 512 are consistent to ensure that the extension and retraction trajectory of the lever arm 560 is precisely aligned. At the same time, the key 551 of the sliding shaft 550 is blocked by the inner wall of the through hole to form a physical limit, which not only maintains the stability of the component operation, but also completely eliminates the risk of parts accidentally falling out during storage / expansion.

[0053] Preferably, the outer wall of the positioning member 540 has a plurality of positioning grooves 541 distributed in a radiating pattern around the axis.

[0054] Preferably, the pull ring 570 can engage with the positioning groove 541.

[0055] In practical use, through the coordinated cooperation of several radiating positioning grooves 541 and pull ring 570, the pull ring 570 can be engaged in any positioning groove 541 to form a mechanical self-lock, forcibly fixing the rotation angle of the screw 510 and completely eliminating the risk of thread rewind caused by motion vibration; the radiating groove layout is compatible with multiple adjustment positions, so that the pull ring 570 can be quickly locked in any stop position, ensuring the absolute stability of the size adjustment result.

[0056] Working principle: When it is necessary to adjust the shoe size of this type of hidden adjustable roller skate, first pull out the pull ring 570 to unfold the lever arm 560 to a 90-degree angle to form a force-saving lever. Then, hold the pull ring 570 and rotate the lever arm 560, thereby driving the screw 510 to rotate. Through the internal threaded cylinder 531 and the follower 530, the shoe body a310 is driven to slide to achieve size adjustment. After the shoe size is adjusted, fold the lever arm 560 in the opposite direction and push it into the slide groove 512. Finally, lock the screw by inserting the pull ring 570 into the nearest positioning groove 541. It should be noted that when the lever arm 560 rotates, it drives the sliding shaft 550 to rotate. Due to the interaction between the key 551 and the keyway 513, the screw 510 is driven to rotate.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A hidden coded wheel skate, characterized by: The shoe includes a sole (10), an upper (20), an inner shoe body (30), and an adjustment component (50). The upper (20) is sewn onto the sole (10). The inner shoe body (30) is slidably mounted on the sole (10). The sole (10) has an installation groove. The adjustment component (50) is inserted into the installation groove. The inner shoe body (30) is driven to connect with the adjustment component (50). The inner shoe body (30) includes shoe body a (310) and shoe body b (320). The shoe body a (310) is slidably disposed on the sole (10), and the shoe body b (320) is fixedly disposed on the sole (10). The adjusting assembly (50) includes a screw (510), a bearing support (520), a follower (530), a positioning member (540), a sliding shaft (550), a lever arm (560), and a pull ring (570). The screw (510) is rotatably mounted in the mounting groove via the bearing support (520). An internally threaded cylinder (531) is fixedly connected inside the follower (530). The internally threaded cylinder (531) is sleeved on the screw (510). One end of the screw (510) extends through and to the outside of the sole (10). The positioning element (540) is sleeved on the end of the screw (510) located outside the sole (10) and is rotatably connected to the screw (510). The positioning element (540) is fixedly connected to the sole (10). The sliding shaft (550) and the lever arm (560) are slidably installed inside the screw (510). The two ends of the lever arm (560) are rotatably connected to the sliding shaft (550) and the pull ring (570) respectively.

2. The hidden coded wheel skate according to claim 1, wherein: The bottom of the sole (10) is equipped with a blade holder (40), and a plurality of wheels (410) are mounted on the blade holder (40).

3. The hidden coded wheel skate according to claim 1, wherein: The shoe body a (310) has a hollow area a (311), and the shoe body b (320) has a hollow area b (321). The hollow areas a (311) and b (321) are arranged alternately.

4. The hidden coded wheel skate according to claim 1, wherein: The bottom edge of the shoe body a (310) is provided with a connecting groove (312), and the shoe body a (310) is fixedly connected to the follower (530) through the connecting groove (312).

5. The hidden coded wheel skate according to claim 1, wherein: One end of the screw (510) is provided with an external thread (511), and the other end of the screw (510) is provided with a sliding groove (512), and the inner wall of the sliding groove (512) is provided with a keyway (513).

6. The hidden coded wheel skate according to claim 5, wherein: A key (551) is fixed on the outer wall of the sliding shaft (550), the key (551) is adapted to the keyway (513), and the sliding shaft (550) and the lever arm (560) are slidably connected to the sliding groove (512).

7. The hidden coded wheel skate according to claim 5, wherein: The positioning element (540) has a through hole at the middle position, and the inner diameter of the through hole is the same as the inner diameter of the slide groove (512).

8. The hidden coded wheel skate according to claim 1, wherein: The outer wall of the positioning component (540) is provided with a number of positioning grooves (541) that are distributed in a radiating pattern around the axis.

9. The hidden coded wheel skate according to claim 8, wherein: The pull ring (570) can engage with the positioning groove (541).