Anti-compression and anti-puncture rugby bladder

Abstract

The utility model relates to a compression-resistant puncture-proof rugby bladder which comprises a rugby bladder, a Kevlar fiber layer used for puncture-proof protection is fixedly installed outside the rugby bladder, and an inner supporting structure used for reinforcing the rugby bladder is arranged inside the rugby bladder. The inner supporting structure comprises two limiting baffle rings fixedly installed in the rugby inner container. According to the compression-resistant and puncture-proof rugby bladder, the rugby bladder is wrapped with the Kevlar fiber layer, so that the purpose of good puncture-proof effect is achieved, and the inner sides of the two resisting inner tiles are supported through the core ball and the plastic telescopic rod; the rugby inner container is supported outwards by the two resisting inner tiles, so that the inward collapsing difficulty of the upper portion and the lower portion of the rugby inner container is increased, the inward extrusion force of the carbon fiber inner tiles can be relieved by the cooperation of the springs and the damping rods to expand outwards, and the skirt side pressure resistance of the rugby inner container and the Kevlar fiber layer can be improved by the outward expansion of the carbon fiber inner tiles. Therefore, the effect of good compression resistance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rugby balls, in particular to a compression-resistant and puncture-proof rugby ball bladder. Background Art

[0002] Rugby is a close-contact team sport that originated from rugby schools in the first half of the 19th century. The ball used in this sport is generally oval in shape, made of leather and containing a rubber bladder.

[0003] Chinese patent publication number CN220778968U proposes "a deformation-resistant rugby inner tube". This technical solution points out the problem that "existing rugby balls are often subjected to greater pressure during use, causing the ball to deform frequently. After a long time, the ball is prone to serious deformation and its service life is greatly shortened". The utility model provides the following technical solution: "Through the nesting and covering of the elastic surface layer, the elastic surface layer and the inner tube are in contact with each other through a wavy second convex layer. When the outer reinforcement layer is wound, the first elastic layer is first formed by covering the periphery of the first convex layer in a weft knitting manner, and then the second elastic layer is formed by conventional winding of elastic fibers, so as to further improve the elastic index of the inner tube on the basis of providing elasticity through traditional inner tube materials, and the inner tube and the leather surface of the ball are in contact through a durable layer."

[0004] The above solution has the following defects: the interior of the football lacks support, and the ball is squeezed by the athlete during the process of grabbing the ball, which easily causes the ball to deform. Therefore, a pressure-resistant and puncture-proof football bladder is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a pressure-resistant and puncture-resistant rugby bladder, which has the advantage of good pressure resistance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure-resistant and puncture-proof football bladder, comprising a football bladder, a Kevlar fiber layer for puncture protection is fixedly installed on the outside of the football bladder, and an internal support structure for reinforcing the bladder is arranged inside the football bladder.

[0007] The inner support structure includes two limit retaining rings fixedly installed inside the inner liner of a football. Two resisting inner bushings are movably installed inside the inner liner of the football. Plastic telescopic rods are fixedly installed on opposite sides of the two resisting inner bushings. A core ball is fixedly installed between the two plastic telescopic rods. A plurality of damping rods are fixedly installed on the outer sides of the core balls. Carbon fiber inner bushings are fixedly installed on the outer sides of the plurality of damping rods. Blocking plates are fixedly installed on the outer sides of the plurality of damping rods. Springs are fixedly installed on the outer sides of the plurality of blocking plates.

[0008] Furthermore, the Kevlar fiber layer is sleeved on the outside of the football liner, the football liner and the Kevlar fiber layer are fixedly connected by glue, and the thickness of the football liner is the same as the thickness of the Kevlar fiber layer.

[0009] Furthermore, the exteriors of the two limit stop rings are both in the shape of circular rings, the two limit stop rings are respectively located near the top and bottom ends of the football liner, and the exteriors of the two limit stop rings are both in the shape of circular arcs.

[0010] Furthermore, the two resisting inner tiles are respectively located on the outside of the two limit retaining rings, and the two resisting inner tiles are respectively attached to the inner cavity top and the inner cavity bottom of the football liner, and the outside of the two resisting inner tiles are both arc shell-shaped.

[0011] Furthermore, the core ball is located at the center of the inner liner of the football, the telescopic ends of the plurality of damping rods are all facing outward, and the plurality of damping rods are evenly distributed on the outside of the core ball.

[0012] Furthermore, outer sides of the plurality of carbon fiber inner tiles are all in the shape of arc sheets, and the plurality of carbon fiber inner tiles are all attached to the inner side of the football liner.

[0013] Furthermore, the plurality of blocking plates are all located at one end close to the core ball, the plurality of springs are respectively sleeved on the outside of the plurality of damping rods, and the plurality of springs are respectively fixedly mounted on the inner sides of the plurality of carbon fiber inner bushes.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The pressure-resistant and puncture-proof football bladder achieves a good puncture-proof effect by wrapping the outside of the football bladder with a Kevlar fiber layer, supports the inner sides of two resisting inner tiles by a core ball and a plastic telescopic rod, and the two resisting inner tiles support the football bladder outward to make it more difficult for the upper and lower parts of the football bladder to collapse inward, and multiple springs cooperate with multiple damping rods to expand outward to relieve the inward squeezing force of multiple carbon fiber inner tiles, and the outward expansion of multiple carbon fiber inner tiles can increase the compression resistance of the skirt side of the football bladder and the Kevlar fiber layer, thereby achieving a good compression resistance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal support structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall appearance of the utility model.

[0019] In the figure: 1. Football liner; 2. Kevlar fiber layer; 3. Limit ring; 4. Resistance inner wall; 5. Plastic telescopic rod; 6. Core ball; 7. Damping rod; 8. Carbon fiber inner wall; 9. Blocking plate; 10. Spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 A pressure-resistant and puncture-proof football bladder in this embodiment includes a football liner 1, a Kevlar fiber layer 2 for puncture-proof protection is fixedly installed on the outside of the football liner 1, the Kevlar fiber layer 2 is sleeved on the outside of the football liner 1, the football liner 1 and the Kevlar fiber layer 2 are fixedly connected by glue, the thickness of the football liner 1 is the same as the thickness of the Kevlar fiber layer 2, Kevlar fiber has the advantages of good heat resistance, tensile strength and high strength, so it can play a good puncture-proof effect when installed on the outside of the football liner 1, and an internal support structure for reinforcing the bladder is provided inside the football liner 1.

[0022] The inner support structure includes two limit retaining rings 3 fixedly installed inside the football liner 1. The outer parts of the two limit retaining rings 3 are both annular. The two limit retaining rings 3 are respectively located near the top and bottom ends of the football liner 1. The outer parts of the two limit retaining rings 3 are both arc-shaped. Two resisting inner tiles 4 are movably installed inside the football liner 1. The two resisting inner tiles 4 are respectively located on the outer parts of the two limit retaining rings 3. The two resisting inner tiles 4 are respectively attached to the inner cavity top and the inner cavity bottom of the football liner 1. The two limit rings 3 can respectively limit the two resisting inner tiles 4 to the top and bottom of the inner cavity of the football liner 1. The exteriors of the two resisting inner tiles 4 are both arc shell-shaped, so that the two resisting inner tiles 4 can better fit the inner wall of the football liner 1. Plastic telescopic rods 5 are fixedly installed on the opposite sides of the two resisting inner tiles 4. A core ball 6 is fixedly installed between the two plastic telescopic rods 5. The core ball 6 is located at the center of the football liner 1. The inner sides of the two resisting inner tiles 4 are supported by the core ball 6 and the two plastic telescopic rods 5. At this time, the two

[0023] The inner wall 4 supports the football liner 1 outward.

[0024] A plurality of damping rods 7 are fixedly installed on the outer side of the core ball 6, and the telescopic ends of the plurality of damping rods 7 are all facing outward. The plurality of damping rods 7 are evenly distributed on the outer side of the core ball 6, and carbon fiber inner tiles 8 are fixedly installed on the outer side of the plurality of damping rods 7. The plurality of carbon fiber inner tiles 8 are all fitted to the inner side of the football liner 1, and the outer sides of the plurality of carbon fiber inner tiles 8 are all arc-shaped, so that the plurality of carbon fiber inner tiles 8 are fitted to the inner wall of the football liner 1, and blocking sheets 9 are fixedly installed on the outer side of the plurality of damping rods 7. The plurality of blocking sheets 9 are all located at one end close to the core ball 6, and springs 10 are fixedly installed on the outer side of the plurality of blocking sheets 9, and the inner sides of the plurality of springs 10 are supported by the plurality of blocking sheets 9. The plurality of springs 10 are respectively mounted on the outer side of the plurality of damping rods 7, and the plurality of springs 10 are respectively fixedly installed on the inner side of the plurality of carbon fiber inner tiles 8. The plurality of springs 10 cooperate with the plurality of damping rods 7 to expand outward to relieve the inward squeezing force of the plurality of carbon fiber inner tiles 8, thereby increasing the compression resistance of the football liner 1 and the Kevlar fiber layer 2.

[0025] The working principle of the above embodiment is:

[0026] When in use, the Kevlar fiber layer 2 wraps the outside of the football liner 1 for puncture protection. At this time, the core ball 6 and the two plastic telescopic rods 5 support the inner sides of the two resisting inner tiles 4, and the two resisting inner tiles 4 support the football liner 1 outward, thereby increasing the difficulty of the upper and lower parts of the football liner 1 to collapse inward. Afterwards, multiple springs 10 cooperate with multiple damping rods 7 to expand outward to relieve the inward squeezing force of multiple carbon fiber inner tiles 8. At this time, multiple carbon fiber inner tiles 8 are attached to the inner side of the football liner 1 and expand outward, thereby increasing the compression resistance of the skirt side of the football liner 1 and the Kevlar fiber layer 2.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant and puncture-resistant rugby bladder, comprising a rugby liner (1), characterized in that: A Kevlar fiber layer (2) for puncture protection is fixedly installed on the outside of the football liner (1), and an internal support structure for reinforcing the bladder is arranged inside the football liner (1); The inner support structure comprises two limit stop rings (3) fixedly mounted inside the football liner (1); two stop inner bushes (4) are movably mounted inside the football liner (1); plastic telescopic rods (5) are fixedly mounted on opposite sides of the two stop inner bushes (4); a core ball (6) is fixedly mounted between the two plastic telescopic rods (5); a plurality of damping rods (7) are fixedly mounted on the outer sides of the core balls (6); carbon fiber inner bushes (8) are fixedly mounted on the outer sides of the plurality of damping rods (7); stop plates (9) are fixedly mounted on the outer sides of the plurality of damping rods (7); and springs (10) are fixedly mounted on the outer sides of the plurality of stop plates (9).

2. The compression-resistant and puncture-resistant rugby bladder according to claim 1, characterized in that: The Kevlar fiber layer (2) is sleeved on the outside of the rugby ball liner (1); the rugby ball liner (1) and the Kevlar fiber layer (2) are fixedly connected by glue; the thickness of the rugby ball liner (1) is the same as the thickness of the Kevlar fiber layer (2).

3. The compression-resistant and puncture-resistant rugby bladder according to claim 1, characterized in that: The exteriors of the two limit stop rings (3) are both in the shape of circular rings. The two limit stop rings (3) are respectively located near the top and bottom ends of the football liner (1). The exteriors of the two limit stop rings (3) are both in the shape of circular arcs.

4. The compression-resistant and puncture-resistant rugby bladder according to claim 1, characterized in that: The core ball (6) is located at the center of the football liner (1), the telescopic ends of the plurality of damping rods (7) are all facing outwards, and the plurality of damping rods (7) are evenly distributed on the outside of the core ball (6).

5. The compression-resistant and puncture-resistant rugby bladder according to claim 1, characterized in that: The outer sides of the plurality of carbon fiber inner tiles (8) are all in the shape of circular arc sheets, and the plurality of carbon fiber inner tiles (8) are all attached to the inner side of the rugby ball liner (1).

6. The compression-resistant and puncture-resistant rugby bladder according to claim 1, characterized in that: The plurality of blocking plates (9) are all located at one end close to the core ball (6), the plurality of springs (10) are respectively mounted on the outside of the plurality of damping rods (7), and the plurality of springs (10) are respectively fixedly mounted on the inner side of the plurality of carbon fiber inner bushings (8).

Images