Roller skate guard

Abstract

This utility model discloses a roller skating protective gear, including a protective plate, a foam layer covering the surface of the protective plate, an air cushion, an inner nail, and a shaft connector. The air cushion has a receiving groove in the middle of its concave side, and a first through hole is opened on the inner wall of the receiving groove. The foam layer and the protective plate have a second through hole and a third through hole respectively at corresponding positions. The three are connected to form a passageway. The head of the inner nail abuts against the inner wall of the receiving groove, and its tip extends into the passageway through the first through hole. One end of the shaft connector abuts against the convex side of the foam layer, and the other end extends into the passageway through the second through hole and is axially fixed to the tip of the inner nail. The exposed end of the shaft connector and the head of the inner nail clamp the middle of the air cushion and the foam layer to the protective plate. The movement of the foam layer and the air cushion relative to the protective plate is restricted by the inner nail and the shaft connector, and the two are fixedly installed on the protective plate, which effectively reduces the number of openings and the positioning burden of the holes in the roller skating protective gear.

Description

Technical Field

[0001] This utility model relates to the field of protective gear technology, and in particular to a roller skating protective gear. Background Technology

[0002] Traditional roller skating protective gear, designed to effectively protect the user's body during roller skating, typically combines a rigid protective plate with a foam pad placed on the concave side of the plate. The rigid protective plate withstands external impacts, providing basic protective support; the foam pad, through its elastic deformation, cushions external impacts, further enhancing wearing comfort and protective effectiveness.

[0003] However, these types of roller skating protective gear generally use riveting to fix the foam pad to the inner wall of the protective plate, which requires at least three rivet holes. This not only increases the burden of opening and positioning the foam pad and the protective plate, but also requires installing multiple rivets one by one during the riveting process, resulting in complicated production procedures and increased labor costs. Utility Model Content

[0004] In view of this, the present invention provides a roller skating protective gear to solve the problem that the existing roller skating protective gear generally uses riveting to fix the foam pad to the inner wall of the protective plate, which requires opening at least three rivet holes. This not only increases the burden of opening and positioning the foam pad and the protective plate, but also requires installing multiple rivets one by one during the riveting process, resulting in complicated production process and increased labor costs.

[0005] To achieve one, some, or all of the above objectives, or other objectives, this utility model proposes a roller skate protective gear, comprising an arc-shaped protective plate, a foam layer covering the surface of the protective plate, an air cushion disposed on the concave side of the foam layer, an inner nail, and a shaft connector. The air cushion has a receiving groove in the middle of its concave side, and a first through hole is formed on the inner wall of the receiving groove. The foam layer and the protective plate are respectively provided with a second through hole and a third through hole at corresponding positions, and the three are connected to form a passageway. The head of the inner nail abuts against the inner wall of the receiving groove, and its tip extends into the passageway through the first through hole. One end of the shaft connector abuts against the convex side of the foam layer, and the other end extends into the passageway through the second through hole and is axially fixed to the tip of the inner nail. The exposed end of the shaft connector and the head of the inner nail clamp the protective plate in the middle of the air cushion and the foam layer. The receiving groove is filled with a foam block covering the head of the inner nail.

[0006] Preferably, the tip of the inner nail has a threaded cavity, and the protruding end of the shaft connector is threaded into the threaded cavity.

[0007] Preferably, the shaft connector includes an outer pin and a fastening pin. The head of the outer pin abuts against the convex side of the foam layer, and a buffer groove is formed on the side of its head away from the foam layer. Its tip extends from the outer end of the passage and is fixedly sleeved in the third through hole. The tip of the outer pin has a sliding cavity. A fourth through hole is formed on the inner wall of the sliding cavity, which connects to the buffer groove. The tip of the inner pin is slidably connected in the sliding cavity. The fastening pin is disposed in the buffer groove, and its head abuts against the inner wall of the buffer groove. Its tip passes through the fourth through hole into the sliding cavity and is threadedly connected to the threaded cavity. The depth of the buffer groove is greater than the head thickness of the fastening pin, and the difference between the two is the first buffer stroke. The tip of the inner pin and the inner wall of the sliding cavity are spaced apart to form a second buffer stroke. The first buffer stroke and the second buffer stroke are equal.

[0008] Preferably, the head of the inner nail is spaced at least 10 mm from the recessed side of the air cushion.

[0009] Preferably, the foam layer is made of EVA material.

[0010] Preferably, the air cushion has a honeycomb structure.

[0011] Preferably, the air cushion has a hollow structure.

[0012] Implementing the embodiments of this utility model will have the following beneficial effects:

[0013] After adopting the above-mentioned roller skating protective gear, during assembly, firstly, the foam layer is wrapped around the surface of the protective plate using one or more combinations of sewing, splicing, hot pressing, and bonding, aligning the second and third through holes. Then, the air cushion is laid on the concave side of the foam layer, connecting the first, second, and third through holes to form a passageway. Next, one end of the shaft connector is inserted into the passageway through the outer opening, and the tip of the inner nail is inserted into the passageway through the inner opening. The inserted end of the shaft connector is axially fixed to the tip of the inner nail. The shaft connection method can be... The connection is either threaded or elastic (such as a multi-stage snap-fit ​​method with anti-reverse effect, such as barbed studs). The exposed end of the shaft connector squeezes the convex side of the foam layer, and the head of the inner stud squeezes the concave side of the air cushion, thereby clamping the middle of the air cushion and foam layer onto the protective plate. Finally, foam blocks are used to seal the receiving groove. By restricting the movement of the foam layer and air cushion relative to the protective plate through the inner stud and shaft connector, the two are fixedly installed on the protective plate. This effectively reduces the number of openings and the positioning burden of the holes in the roller skate protective gear. Moreover, the assembly method is simple and quick, which helps to simplify the production process and reduce labor costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] in:

[0016] Figure 1 This is an exploded view of the present invention from a frontal perspective;

[0017] Figure 2 This is an exploded view of the present invention from a rear view.

[0018] Figure 3 This is a side sectional view of the present invention.

[0019] In the diagram: 1. Protective plate; 11. Third through hole; 2. Foam layer; 21. Second through hole; 3. Air cushion; 31. Receiving groove; 32. First through hole; 4. Inner nail; 41. Threaded cavity; 5. Foam block; 6. Outer nail; 61. Buffer groove; 62. Sliding cavity; 63. Fourth through hole; 7. Fastening nail. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figure 1-3As shown, a roller skate protective gear includes an arc-shaped protective plate 1, a foam layer 2 covering the surface of the protective plate 1, an air cushion 3 disposed on the concave side of the foam layer 2, an inner stud 4, and a shaft connector. The air cushion 3 has a receiving groove 31 in the middle of its concave side. A first through hole 32 is formed on the inner wall of the receiving groove 31. The foam layer 2 and the protective plate 1 have a second through hole 21 and a third through hole 11 respectively at corresponding positions, forming a passageway. The head of the inner stud 4 abuts against the inner wall of the receiving groove 31, and its tip passes through the first through hole 32 and extends into the passageway. One end of the shaft connector abuts against the convex side of the foam layer 2, and the other end extends into the passageway through the second through hole 21 and is axially fixed to the tip of the inner nail 4. The exposed end of the shaft connector and the head of the inner nail 4 clamp the air cushion 3 and the middle of the foam layer 2 to the protective plate 1. The receiving groove 31 is filled with a foam block 5 covering the head of the inner nail 4. The foam block 5 can be fixed in the receiving groove 31 by adhesive. During assembly, the foam layer 2 is first wrapped around the surface of the protective plate 1 by one or more combinations of sewing, threading, hot pressing, and adhesive. Align the second through hole 21 and the third through hole 11, then lay the air cushion 3 on the concave side of the foam layer 2, so that the first through hole 32, the second through hole 21 and the third through hole 11 are connected in series to form a through channel. Then, insert one end of the shaft connector into the through channel from the outer end opening, and insert the tip of the inner nail 4 into the through channel from the inner end opening, and fix the inserted end of the shaft connector axially with the tip of the inner nail 4. The shaft connection can be a threaded connection or an elastic snap-fit ​​(such as a multi-stage snap-fit ​​method with anti-reverse effect, such as a barbed nail). The exposed end of the shaft connector is used to squeeze the convex side of the foam layer 2, and the head of the inner nail 4 is used to squeeze the concave side of the air cushion 3, thereby clamping the air cushion 3 and the middle part of the foam layer 2 onto the guard plate 1. Finally, the foam block 5 is used to seal the receiving groove 31. The movement of the foam layer 2 and the air cushion 3 relative to the guard plate 1 is restricted by the inner nail 4 and the shaft connector, and the two are fixedly installed on the guard plate 1. This effectively reduces the number of openings and the positioning burden of the holes in the roller skate protective gear. Moreover, the assembly method is simple and quick, which helps to simplify the production process and reduce labor costs.

[0024] In one embodiment, the foam layer 2 is a hollow structure with one end open, and its inner cavity contour matches the protective plate 1. The protective plate 1 can be inserted into the inner cavity of the foam layer 2 through the opening. After insertion, the opening of the foam layer 2 can be sewn or pressed to fix the foam layer 2 to the surface of the protective plate 1.

[0025] Specifically, in practical applications, the protective plate 1 can be nested in the corresponding position of the leg guard or straps can be set on both sides of it so that the user can fix the roller skating protective gear to the knee. When the roller skating protective gear is impacted by external force, the user's knee will squeeze the foam block 5, foam layer 2 and air cushion 3, and use the deformation of the three to alleviate the impact on the knee and better protect the knee.

[0026] Furthermore, the tip of the inner nail 4 has a threaded cavity 41 along the axial direction, and the end of the shaft connector is threaded into the threaded cavity 41 to apply a clamping force to the middle of the air cushion 3 and the foam layer 2 through the self-locking effect of the thread, thereby fixing the two to the protective plate 1.

[0027] Furthermore, the shaft connector includes an outer pin 6 and a fastening pin 7. The head of the outer pin 6 abuts against the protruding side of the foam layer 2, and a buffer groove 61 is formed on the side of its head away from the foam layer 2. Its tip extends from the outer end of the passage and is fixedly sleeved in the third through hole 11. A sliding cavity 62 is formed at the tip of the outer pin 6. A fourth through hole 63 is formed on the inner wall of the sliding cavity 62, which connects to the buffer groove 61. The tip of the inner pin 4 is slidably connected in the sliding cavity 62. The fastening pin 7 is set in the buffer groove 61, and its head abuts against the inner wall of the buffer groove 61. Its tip passes through the fourth through hole 63 into the sliding cavity 62 and is threadedly connected to the threaded cavity 41. The depth of the buffer groove 61 is greater than the head of the fastening pin 7. The difference between the thickness and the thickness is the first buffer stroke. The tip of the inner nail 4 and the inner wall of the sliding cavity 62 form the second buffer stroke. The first buffer stroke and the second buffer stroke are equal. When the roller skate protective gear is impacted by external force during use, the user's knee will simultaneously squeeze the foam block 5, the concave side of the foam layer 2 and the air cushion 3. If the impact force is too great, the foam block 5 and the concave side of the foam layer 2 will be completely compressed. During this process, the knee will apply pressure to the head of the inner nail 4, driving the tip of the inner nail 4 to slide further towards the inner wall of the sliding cavity, and driving the head of the fastening nail 7 to slide synchronously towards the opening of the buffer groove 61, thereby avoiding a hard collision between the knee and the head of the inner nail 4, and further protecting the knee.

[0028] Specifically, the inner end of the passageway refers to the end of the passageway closest to the user's knee when the roller skating protective gear is worn, and the outer end is the opposite; both the fastening nail 7 and the inner nail 4 have cross grooves on their heads so that the operator can control their relative rotation with a screwdriver to tighten them during assembly.

[0029] Furthermore, the head of the inner nail 4 is spaced at least 10 mm from the recessed side of the air cushion 3 so that a thicker foam block 5 can be filled in the receiving groove 31, giving the air cushion 3 and the foam block 5 more deformation, improving their cushioning capacity, preventing the knee from hardly colliding with the head of the inner nail 4, and further enhancing the protective effect.

[0030] Furthermore, foam layer 2 is made of EVA material. EVA material has high resilience and softness. When the protective gear is subjected to external impact, foam layer 2 absorbs the impact energy through elastic deformation, reducing the instantaneous pressure on the knee. At the same time, the lightweight nature of EVA reduces the overall weight of the protective gear, improving wearing comfort. In addition, EVA material has good resistance to compression fatigue, which can maintain the cushioning performance for a long time and extend the service life of the protective gear.

[0031] Furthermore, the air cushion 3 has a honeycomb structure, which is composed of multiple hexagonal honeycomb units arranged in a regular pattern (not shown in the attached diagram). The geometric characteristics of the honeycomb structure enable it to evenly distribute impact force when compressed, and dissipate energy step by step through the elastic deformation of the unit walls, avoiding local stress concentration. At the same time, the interconnected spaces between the honeycomb units allow the air cushion 3 to quickly recover its deformation after impact, enhancing its multiple cushioning capabilities. This structure, while ensuring cushioning performance, further reduces the weight of the air cushion 3 and improves the flexibility of the protective gear.

[0032] Furthermore, Air Cushion 3 features a hollow structure, forming a sealed air cavity with its walls integrally molded from an elastic material. When the protective gear is impacted, the hollow cavity absorbs the impact energy through air compression, utilizing the compressibility of gas to achieve progressive cushioning and reduce the peak impact force on the knee. The elastic deformation of the cavity walls, combined with the air rebound effect, allows it to quickly return to its original shape, ensuring stability under repeated impacts. The hollow structure design simplifies the manufacturing process of Air Cushion 3.

[0033] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A roller skate guard characterized by, It includes an arc-shaped protective plate, a foam layer covering the surface of the protective plate, an air cushion set on the concave side of the foam layer, an inner nail, and a shaft connector; The air cushion has a receiving groove in the middle of its concave side, and a first through hole is opened on the inner wall of the receiving groove. The foam layer and the protective plate are respectively provided with a second through hole and a third through hole at corresponding positions, and the three are connected to form a passage. The head of the inner nail abuts against the inner wall of the receiving groove, and its tip extends through the first through hole into the passageway. One end of the shaft connector abuts against the outer convex side of the foam layer, and the other end extends into the passage through the second through hole and is axially fixed to the tip of the inner nail. The exposed end of the shaft connector and the head of the inner nail clamp the protective plate in the middle of the air cushion and the foam layer. The receiving groove is filled with a foam block to cover the head of the inner nail.

2. The wheeled skid guard of claim 1, wherein, The tip of the inner nail has a threaded cavity, and the protruding end of the shaft connector is threaded into the threaded cavity.

3. The wheeled skid guard of claim 2, wherein, The shaft connector includes an outer pin and a fastening pin; The head of the outer nail abuts against the convex side of the foam layer, and a buffer groove is provided on the side of its head away from the foam layer. Its tip extends into the third through hole from the outer end of the passage. A sliding cavity is provided at the tip of the outer nail. A fourth through hole is provided on the inner wall of the sliding cavity to connect with the buffer groove. The tip of the inner nail is slidably connected in the sliding cavity. The fastening pin is disposed in the buffer groove, with its head abutting against the inner wall of the buffer groove. Its tip passes through the fourth through hole into the sliding cavity and is threadedly connected to the threaded cavity. The depth of the buffer groove is greater than the head thickness of the fastening pin, and the difference between the two is the first buffer stroke. The tip of the inner pin is spaced from the inner wall of the sliding cavity to form a second buffer stroke. The first buffer stroke and the second buffer stroke are equal.

4. The wheeled skid guard of claim 1, wherein, The head of the inner nail is spaced at least 10 mm from the concave side of the air cushion.

5. The wheeled skid guard of claim 1, wherein, The foam layer is made of EVA material.

6. The wheeled skid guard of claim 1, wherein, The air cushion has a honeycomb structure.

7. The wheeled skid guard of claim 1, wherein, The air cushion has a hollow structure.

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