Hybrid fiber composite billiard cue

Abstract

The invention relates to the technical field of composite materials, in particular to a hybrid fiber composite material billiard cue. The hybrid fiber composite billiard cue comprises a front support and a rear handle, wherein the front support comprises a first core body, a first fiber layer and a first reinforcing layer, and the first fiber layer and the first reinforcing layer are sequentially stacked on the outer circumferential surface of the first core body; the rear handle is detachably connected with the front support; the rear handle comprises a second core body, and a second fiber layer, a second reinforcing layer and a protective layer which are sequentially stacked on the outer peripheral surface of the second core body; the first reinforcing layer and the second reinforcing layer each comprise a three-dimensional woven structure composed of various fibers. According to the design, the first reinforcing layer and the second reinforcing layer are arranged to be of the three-dimensional woven structure formed by weaving various fibers and are matched with the protective layer, the first fiber layer and the second fiber layer, the light weight and the corrosion resistance are guaranteed, and meanwhile the mechanical performance of the front branch and the rear handle in multiple directions is enhanced; the service life is prolonged; and the use experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of composite materials, in particular to a billiard cue made of a hybrid fiber composite material. Background Art

[0002] The performance of the pool cue directly affects the user's hitting accuracy and feel. Currently, common wooden pool cues are easily affected by the environment and may deform or crack, making them difficult to preserve. Metal pool cues are heavy and can easily cause fatigue after long-term use.

[0003] In recent years, with the rise of composite materials, billiard cues made of fiber-reinforced composite materials have gradually emerged. However, there are still problems such as poor mechanical properties, which affect the service life of the billiard cues and the user experience. Summary of the Invention

[0004] In order to overcome the problems existing in the related art, the present invention provides a hybrid fiber composite material billiard cue, which can improve service life and user experience.

[0005] According to some embodiments, the present invention provides a hybrid fiber composite billiard cue, comprising: The front support comprises a first core body and a first fiber layer and a first reinforcement layer sequentially stacked on the outer peripheral surface of the first core body; a rear handle detachably connected to the front support, the rear handle comprising a second core body and a second fiber layer, a second reinforcement layer, and a protective layer sequentially stacked on the outer peripheral surface of the second core body; Wherein, the first reinforcement layer and the second reinforcement layer both include a three-dimensional woven structure composed of multiple fibers.

[0006] In some embodiments of the present invention, both the first fiber layer and the second fiber layer include a two-dimensional woven structure composed of at least one type of fiber.

[0007] In some embodiments of the present invention, the protective layer comprises a hoop-wound structure composed of at least one fiber.

[0008] In some embodiments of the present invention, the first core and the second core are both foam structural members; The first fiber layer, the second fiber layer, the first reinforcement layer, the second reinforcement layer and the protective layer are all fiber-reinforced resin structural parts, wherein the resin mass proportion in the hybrid fiber composite material billiard cue is 30%-60%.

[0009] In some embodiments of the present invention, the first reinforcement layer and the second reinforcement layer each include a three-dimensional woven structure composed of first fibers and second fibers, the strength of the first fibers is higher than the strength of the second fibers, and the toughness of the second fibers is higher than the toughness of the first fibers, wherein the ratio of the volume of the first fibers to the volume of the second fibers is in a range of 1-6; The first fiber layer and the second fiber layer each include a two-dimensional woven structure composed of third fibers; The protective layer includes a hoop-wound structure composed of fourth fibers, and an angle between an extension direction of the fourth fibers in the hoop-wound structure and a cross-sectional direction of the hybrid fiber composite material billiard cue is 5°-45°.

[0010] In some embodiments of the present invention, the rear handle includes a first end face and a second end face facing each other, the first end face is provided with a bolt, and the bolt extends along the axial direction of the rear handle, and the end face of the first end of the front branch is provided with a threaded hole, and the threaded hole cooperates with the bolt to allow the front branch to be detachably connected to the rear handle.

[0011] In some embodiments of the present invention, the hybrid fiber composite material billiard cue further includes a protective structure disposed on the second end face, the protective structure including a connected back plug and a first connecting member, the first connecting member being connected to the second end face so that the back plug covers at least a portion of the second end face.

[0012] In some embodiments of the present invention, the back plug is a columnar structure, a cross section of the columnar structure along the radial direction of the columnar structure is adapted to the second end surface, the columnar structure includes a first surface and a second surface opposite to each other, the first surface is opposite to the second end surface, the first connecting member is a cylindrical structure, and the diameter of the cylindrical structure is smaller than the diameter of the columnar structure, and the diameter of the second core is smaller than the diameter of the cylindrical structure; The first end of the cylindrical structure is connected to the first surface, and a slot is provided on the second end surface corresponding to the position of the cylindrical structure. The slot is adapted to the cylindrical structure, and the second end of the cylindrical structure is inserted into the slot to fix the rear plug to the rear handle.

[0013] In some embodiments of the present invention, the hybrid fiber composite billiard cue further includes a ball striking structure disposed at the second end of the front branch, the ball striking structure including: a second connecting member, wherein a first end of the second connecting member is threadedly connected to the second end of the front support, and the second connecting member is a metal structural member; The head is fixedly connected to the second end of the second connecting member, and the head is an elastic member.

[0014] In some embodiments of the present invention, the ball striking structure further comprises: A buffer gasket is located between the second connecting member and the head, and two ends of the buffer gasket are respectively bonded to the second connecting member and the head.

[0015] The technical solutions provided by the embodiments of the present invention may have the following beneficial effects: The present invention provides a hybrid fiber composite material billiard cue, which comprises a front branch including a first core, a first fiber layer and a first reinforcement layer arranged in sequence from the inside to the outside, and a back handle including a second core, a second fiber layer, a second reinforcement layer and a protective layer arranged in sequence from the inside to the outside, and the first reinforcement layer and the second reinforcement layer are arranged as a three-dimensional woven structure woven from multiple fibers. The first reinforcement layer and the second reinforcement layer cooperate with the protective layer, the first fiber layer and the second fiber layer, thereby ensuring the lightness and corrosion resistance of the billiard cue and enhancing the mechanical properties of the front branch and the back handle in multiple directions, thereby improving the service life and usage experience.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] Figure 1 is a schematic structural diagram of an anterior branch according to an exemplary embodiment; Figure 2 is a structural schematic diagram of a rear handle according to an exemplary embodiment; Figure 3 is a cross-sectional view of an anterior branch according to an exemplary embodiment; Figure 4 is a cross-sectional view of a rear handle according to an exemplary embodiment; Figure 5 is a schematic structural diagram of a protection structure according to an exemplary embodiment.

[0019] Reference numerals: 100, front support; 110, first core; 120, first fiber layer; 130, first reinforcement layer; 140, first end; 150, threaded hole; 200, rear handle; 210, second core; 220, second fiber layer; 230, second reinforcement layer; 240, protective layer; 250, first end face; 260, third connecting member; 270, bolt; 300, protective structure; 310, rear plug; 320, first connecting piece; 400, hitting structure; 410, head; 420, second connecting member; 430, buffer gasket. DETAILED DESCRIPTION

[0020] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present invention.

[0021] As a core piece of billiards equipment, the performance of a pool cue directly impacts the player's accuracy and feel. Currently, common pool cues are made of wood, such as maple and ash. However, wood is susceptible to deformation and cracking due to humidity, making it difficult to preserve. While metal cues are less susceptible to deformation and cracking, they are heavy and prone to fatigue with long-term use. In recent years, with the rise of composite materials, pool cues made of fiber-reinforced composites have gradually emerged. However, pool cues made of single fiber-reinforced composites still suffer from mechanical performance issues, such as insufficient toughness, which impacts the cue's lifespan and user experience.

[0022] In order to solve the above technical problems, the present invention provides a hybrid fiber composite material billiard cue, which is configured such that a front branch includes a first core, a first fiber layer and a first reinforcement layer arranged in sequence from the inside to the outside, and a back handle includes a second core, a second fiber layer, a second reinforcement layer and a protective layer arranged in sequence from the inside to the outside, and the first reinforcement layer and the second reinforcement layer are configured such that a three-dimensional woven structure is formed by weaving multiple fibers, and the first reinforcement layer and the second reinforcement layer cooperate with the protective layer, the first fiber layer and the second fiber layer, thereby ensuring the lightness and corrosion resistance of the billiard cue, and also enhancing the mechanical properties of the front branch and the back handle in multiple directions, thereby improving the service life and usage experience.

[0023] A hybrid fiber composite material billiard cue provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0024] It should be noted that Figures 1 to 5 The direction of the middle x-axis is the axial direction of the hybrid fiber composite billiard cue. Figure 3 and Figure 4 They are schematic cross-sectional views of the front support 100 and the back handle 200, that is, cross-sectional views obtained by cutting along the radial direction of the hybrid fiber composite material billiard cue.

[0025] The embodiment of the present invention provides a hybrid fiber composite material billiard cue, such as Figures 1 to 4As shown, the hybrid fiber composite material billiard cue comprises a detachably connected front support 100 and a rear handle 200. When not in use, the front support 100 and the rear handle 200 can be disassembled and stored, saving space and being convenient for storage. Figure 3 As shown, the front support 100 includes a first core 110 and a first fiber layer 120 and a first reinforcement layer 130 sequentially wrapped around the outer circumference of the first core 110. Figure 4 As shown, the rear handle 200 includes a second core 210 and a second fiber layer 220, a second reinforcement layer 230 and a protective layer 240 that are sequentially wrapped around the outer circumference of the second core 210, wherein the first reinforcement layer 130 and the second reinforcement layer 230 both include a three-dimensional woven structure composed of multiple fibers, that is, the first reinforcement layer 130 and the second reinforcement layer 230 are both mixed by at least two fibers and three-dimensionally woven.

[0026] Three-dimensional weaving is a process of interweaving multi-directional yarns in a three-dimensional space to form a three-dimensional structure. In this embodiment, since the fibers are directly intertwined and penetrated with each other in the three-dimensional space during weaving without splicing, the provision of the first reinforcement layer 130 and the second reinforcement layer 230 improves the tear resistance and delamination resistance of the hybrid fiber composite material billiard cue. In addition, the uniform distribution of multiple fibers in multiple directions (for example, three-dimensional five-direction and three-dimensional seven-direction) can evenly disperse external forces into the overall structure, so that the mechanical properties of the billiard cue, such as compression, tension, and toughness, are balanced in all directions, and the fatigue life is long. The first reinforcement layer 130 and the second reinforcement layer 230 cooperate with the protective layer 240 and the first fiber layer 120 and the second fiber layer 220 to ensure the lightness and corrosion resistance of the billiard cue while also enhancing the mechanical properties of the front support 100 and the back handle 200 in multiple directions, thereby improving the service life and user experience.

[0027] It is understood that the materials of the corresponding layer structures of the front support 100 and the rear handle 200 can be the same or different. The fibers selected from the first fiber layer 120 and the first reinforcement layer 130 in the front support 100 can be the same or different. The fibers selected from the second fiber layer 220, the second reinforcement layer 230, and the protective layer 240 in the rear handle 200 can also be the same or different. That is, the materials of the first core 110 and the second core 210 can be the same or different, such as polyurethane foam or polyvinyl chloride foam. Similarly, the types of fibers in the first fiber layer 120 and the second fiber layer 220 can be the same or different, such as carbon fiber reinforced resin or glass fiber reinforced resin. The types of fibers in the first reinforcement layer 130 and the second reinforcement layer 230 can be the same or different, such as a three-dimensional five-way braided structure composed of M40 carbon fiber and aramid fiber or a three-dimensional seven-way braided structure composed of M55J carbon fiber and glass fiber. The types of fibers in the protective layer 240 can be, for example, M60J carbon fiber or M40 carbon fiber, etc., without limitation herein. In addition, since the hybrid fiber composite material billiard cue is formed by wrapping each layer in sequence on the surface of the first core 110 or the second core 210, the cross-section of the first core 110 and the second core 210 can be set to a circular shape, ensuring the isotropy of the billiard cue. The layers can also be directly laid on the core surface without the need for secondary shaping, thereby simplifying the processing technology.

[0028] In one embodiment, if Figure 3 and Figure 4 As shown, both the first fiber layer 120 and the second fiber layer 220 include a two-dimensional woven structure composed of at least one fiber. Two-dimensional weaving is a process of forming a planar structure by interweaving warp and weft yarns within a plane. Two-dimensional weaving includes plain weave, twill weave, satin weave, etc. The first fiber layer 120 and the second fiber layer 220 are, for example, a plain weave structure composed of carbon fibers, or a satin weave structure composed of a mixture of carbon fibers and glass fibers.

[0029] By setting the first fiber layer 120 and the second fiber layer 220 to include a two-dimensional woven structure composed of at least one fiber, not only is the process simple and the production cost low, but the first fiber layer 120 and the second fiber layer 220 of different thicknesses, porosities and textures can be woven by adjusting the weaving method, and combined with the three-dimensional woven first reinforcement layer 130 and the second reinforcement layer 230, the structural strength of the hybrid fiber composite billiard cue is further improved.

[0030] In one embodiment, continue to refer to Figure 4The protective layer 240 comprises a hoop-wound structure composed of at least one fiber. The back handle 200 is the grip used when hitting the ball. The user applies force to the back handle 200 to hit the ball. By providing the protective layer 240 on the outermost layer of the back handle 200 and weaving the at least one fiber of the protective layer 240 in a hoop-wound manner, the back handle 200 is enhanced in terms of wear resistance and torsion resistance.

[0031] In one embodiment, if Figure 3 and Figure 4 As shown, the first core 110 and the second core 210 are both foam structural parts, which realizes the overall weight reduction of the hybrid fiber composite billiard cue and avoids fatigue caused by long-term use; the first fiber layer 120, the second fiber layer 220, the first reinforcement layer 130, the second reinforcement layer 230 and the protective layer 240 are all fiber-reinforced resin structural parts, and the resin can be a thermosetting resin or a thermoplastic resin. Different layers can use different resin materials. Among them, the resin mass proportion in the hybrid fiber composite billiard cue is 30%-60%. For example, the first fiber layer 120 and the second fiber layer 220 are selected from Polyethylene resin is used, epoxy resin is used for the first reinforcement layer 130 and the second reinforcement layer 230, and phenolic resin is used for the protective layer 240. Polyethylene resin has good insulation and low-temperature resistance, epoxy resin has high tensile strength, bending strength and impact toughness, and phenolic resin is not easy to soften and deform at high temperatures (the heat deformation temperature is usually greater than 150°C). Therefore, the above configuration ensures that the billiard cue has high-temperature resistance, low-temperature resistance, insulation performance and good mechanical properties. Those skilled in the art can select the resin of each layer structure according to actual needs, and all of this is within the scope of protection of this application.

[0032] This design not only combines the advantages of multiple materials, but also allows the hybrid fiber composite billiard cue with a resin mass ratio of 30%-60% to evenly disperse the fibers and fully wrap them with the resin, giving full play to the load-bearing function of the fibers and the bonding and load-transfer functions of the resin, thereby maximizing the tensile strength, elastic modulus, fatigue resistance and other mechanical properties of the hybrid fiber composite billiard cue.

[0033] In one embodiment, if Figure 3 and Figure 4As shown, both the first reinforcement layer 130 and the second reinforcement layer 230 include a three-dimensional woven structure composed of first fibers and second fibers, wherein the strength of the first fibers is higher than the strength of the second fibers, and the toughness of the second fibers is higher than the toughness of the first fibers, wherein the volume ratio of the first fibers to the second fibers ranges from 1 to 6. That is, the first reinforcement layer 130 is woven from a mixture of the first fibers with higher strength and the second fibers with higher toughness, wherein the first fibers are, for example, T300 or T700 carbon fibers, and the second fibers are, for example, aramid fibers, UHMWPE fibers, PBO fibers, etc. The mixed weaving herein can be a three-dimensional weaving of the first and second fibers uniformly mixed in a certain ratio and then randomly selected, or can be weaved using only the first fibers in one direction and only the second fibers in another direction, or can be weaved using the first and second fibers alternately in each direction. The above range of the volume ratio of the first and second fibers ensures maximum strength and toughness of the first and second reinforcement layers 130 and 230.

[0034] Both the first fiber layer 120 and the second fiber layer 220 include a two-dimensional woven structure composed of third fibers. The third fibers can be high modulus fibers. Modulus refers to the ratio of stress to strain of a material when it is subjected to force, and is used to describe the material's ability to resist elastic deformation. The third fibers are, for example, M40 carbon fiber, M60 carbon fiber, M40J carbon fiber, etc.

[0035] The protective layer 240 includes a hoop-wound structure composed of fourth fibers, and the angle between the extension direction of the fourth fibers in the hoop-wound structure and the plane direction of the y-axis and the z-axis is 5°-45°. When making the protective layer 240, a strip prepreg of unidirectional fiber can be made first, and then the strip prepreg is hoop-wound at an angle of 5°-45° on the outer surface of the second reinforcement layer 230.

[0036] In this embodiment, by setting the mixing ratio of fibers with different characteristics in the first reinforcement layer 130 and the second reinforcement layer 230, as well as the range of the circumferential winding angle of the fibers in the protective layer 240, the maximum display of multiple mechanical properties such as strength, tensile strength, and torsional resistance is ensured, thereby ensuring the structural strength and service life of the hybrid fiber composite material billiard cue.

[0037] In one embodiment, if Figure 1 and Figure 2As shown, the rear handle 200 includes a first end face 250 and a second end face that are arranged opposite to each other in the x-axis direction. A bolt 270 extending along the x-axis direction is provided on the first end face 250. Correspondingly, a threaded hole 150 that cooperates with the bolt 270 is provided on the end face of the first end 140 of the front support 100. The threaded hole 150 is a blind hole extending along the x-axis direction. The front support 100 and the rear handle 200 are detachably connected by the threaded connection between the bolt 270 and the threaded hole 150. A third connecting member 260 is sleeved on the outer peripheral surface near the first end face 250. The third connecting member 260 is interference fit with the rear handle 200 and is in contact with the first end face 250. The bolt 270 is welded and fixed to the third connecting member 260. The third connecting member 260 can not only fix the bolt 270 to prevent the bolt 270 from damaging the internal structure of the rear handle 200, but also exert a force toward the axial direction on the multi-layer structure of the rear handle 200, thereby playing a tightening role and preventing the rear handle 200 from being delaminated.

[0038] It can be understood that the first end surface 250 of the back handle 200 and the end surface of the first end 140 of the front support 100 are the same in size and shape, so that after the front support 100 and the back handle 200 are connected, they can form a mixed fiber composite billiard cue with a smooth surface.

[0039] By providing the bolts 270 and the threaded holes 150 , installation and disassembly are simple and quick, and the connection between the front support 100 and the rear handle 200 is made stable, thereby ensuring the overall structural strength of the hybrid fiber composite material billiard cue when subjected to stress.

[0040] In one embodiment, if Figure 2 and Figure 5 As shown, the hybrid fiber composite billiard cue also includes a protective structure 300, which is disposed on the second end surface of the back handle 200. The protective structure 300 includes a connected back plug 310 and a first connecting member 320. The first connecting member 320 is connected to the second end surface so that the back plug 310 covers at least a portion of the second end surface. It should be noted that the back plug 310 can be configured as any shape that adapts to the second end surface, such as a circle with the same shape as the second end surface, a rectangle with an area slightly smaller than the second end surface, or a square with an area slightly larger than the second end surface, etc., without limitation herein.

[0041] With such a design, the rear plug 310 can play a protective role, prevent the rear handle 200 from being damaged, and prevent the rear handle 200 from hurting the user or others during use.

[0042] In one embodiment, if Figure 1 and Figure 5As shown, the rear plug 310 is a columnar structure, and the cross section of the columnar structure along its radial direction is adapted to the second end face. The adaptation here means that the projection of the cross section of the rear plug 310 in the x-axis direction can just cover the second end face. The columnar structure includes a first surface and a second surface opposite to each other in the x-axis direction. The first surface is opposite to the second end face of the rear handle 200. After the rear plug 310 is connected to the rear handle 200 through the first connecting member 320, the first surface and the second end face are in contact with each other.

[0043] The first connecting piece 320 is a cylindrical structure, and the diameter of the cylindrical structure is smaller than the diameter of the columnar structure, and the diameter of the second core 210 is smaller than the diameter of the cylindrical structure, that is, the diameter of the first connecting piece 320 is larger than the diameter of the second core 210 and smaller than the diameter of the back plug 310; a card slot adapted to the cylindrical structure is opened on the second end face, the first end of the cylindrical structure is connected to the first surface of the back plug 310, and the second end of the cylindrical structure is snapped into the card slot to fix the back plug 310 to the back handle 200. After the cylindrical structure is snapped into the card slot, the second end face fits with the first surface.

[0044] In this embodiment, by setting the diameter of the first connecting member 320 to be larger than the diameter of the second core 210 and smaller than the diameter of the rear plug 310, when the first connecting member 320 is inserted into the slot, it will not cause damage to the second core 210, thereby ensuring the integrity of the second core 210 and avoiding affecting the structural strength of the position where the slot is set; by fixing the rear plug 310 through the snap connection between the first connecting member 320 and the slot, the first connecting member 320 can extend into the interior of the rear handle 200, ensuring the stable fixation of the rear plug 310.

[0045] In another embodiment, the first connecting member 320 is a first fastening bolt extending along the x-axis direction, and a groove is correspondingly provided on the second end face, and a built-in nut is provided in the groove. The first fastening bolt and the built-in nut cooperate to realize the connection between the rear plug 310 and the rear handle 200. This design facilitates replacement of the rear plug 310 when it is damaged.

[0046] In another embodiment, a protruding structure is provided on the cylindrical structure of the first connecting member 320, and a recessed structure adapted to the protruding structure is provided in the slot opened on the second end face. When the first connecting member 320 is extended into the slot, the snap-fitting structure is snapped into the recessed structure to complete the fixation of the rear plug and the rear handle.

[0047] In one embodiment, if Figure 4 and Figure 5As shown, the back plug 310 is made of an elastic structural member, such as nitrile rubber, polyurethane, silicone rubber, etc., which can provide a cushion for the hybrid fiber composite pool cue. The first surface of the back plug 310 is bonded to the first connecting member 320 via an adhesive. The first connecting member 320 is made of a fiber-reinforced resin, such as T300 high-strength carbon fiber woven in a two-dimensional plain weave and composited with epoxy resin. Since the first connecting member 320 is a fiber-reinforced resin structural member, it is made of the same material as the second fiber layer 220 or the second reinforcement layer 230 surrounding the slot. Therefore, after being inserted into the slot, it does not affect the overall mechanical properties of the back handle 200. In addition, when processing the hybrid fiber composite pool cue, the cylindrical first connecting member 320 can be directly placed on one end of the second end face of the back handle 200 during the layup process, and then the layers are continued and then cured. In this way, the protective structure 300 can be directly fixed to the back handle 200 during the curing process without the need for additional adhesive, saving raw material costs and reducing processing steps.

[0048] In one embodiment, if Figure 1 As shown, the hybrid fiber composite billiard cue also includes a striking structure 400 disposed at the second end of the front leg 100. The striking structure 400 includes a head 410 and a second connecting member 420. One end of the second connecting member 420 is threadedly connected to the second end of the front leg 100. The second connecting member 420 is a metal structural member, such as stainless steel or titanium alloy. The head 410 is fixedly connected to the other end of the second connecting member 420. The head 410 is an elastic member, such as a multi-layer cowhide or deerskin. The metal second connecting member 420 connects the head 410 to the front leg 100, thereby improving the overall structural strength.

[0049] In this embodiment, the end of the second connecting member 420 connected to the second end of the front support 100 is internally threaded, and the outer circumferential surface of the second end of the front support 100 is correspondingly provided with external threads that mate with the second connecting member 420, thereby achieving a fixed connection between the second connecting member 420 and the front support 100. The head 410 is adhered to the second connecting member 420 via an adhesive. In another embodiment, the end of the second connecting member 420 connected to the second end of the front support 100 is provided with a protruding second fastening bolt (not shown). The end surface of the second end of the front support 100 is provided with a second groove, and a second internal nut that mates with the second fastening bolt is disposed within the second groove to achieve a fixed connection between the second connecting member 420 and the front support 100. Those skilled in the art may select a connection method between the second connecting member 420 and the front support 100 based on actual circumstances, and all such methods are within the scope of protection of this application.

[0050] In one embodiment, the ball striking structure 400 further includes a cushioning pad 430. The cushioning pad 430 is positioned between the second connecting member 420 and the head 410, with both ends of the cushioning pad 430 bonded to the second connecting member 420 and the head 410, respectively. The cushioning pad 430 is made of, for example, polyurethane, nylon, or Teflon, and has a thickness in the x-axis direction of between 3 mm and 10 mm. The cushioning pad 430 provides a shock-absorbing effect during striking, enhancing user comfort.

[0051] In one embodiment, the length of the hybrid fiber composite billiard cue after the front support 100 and the back handle 200 are connected is 140cm-150cm, the weight is 400g-560g, the diameter of the second end surface of the back handle 200 is 25mm-30mm, and the diameter of the head 410 is 9.5mm-13mm.

[0052] In the present invention, by setting the front support 100 and the back handle 200 as a multi-layer structure and selecting different fiber types, quantities and weaving methods for different layers, the hardness, toughness, shock absorption and torsion resistance and other mechanical properties of the hybrid fiber composite material billiard cue are greatly improved, and the corrosion resistance and wear resistance are also improved, thereby improving the service life and comfort of the hybrid fiber composite material billiard cue and reducing the difficulty of storage; the arrangement of the first connecting member 320, the second connecting member 420 and the third connecting member 260 ensures the connection stability between the back plug 310, the head 410 and the front support 100 or the back handle 200, and also facilitates processing, saving processing costs.

[0053] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one of such features.

[0054] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0056] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein.

Claims

1. A hybrid fiber composite billiard cue, characterized in that: The hybrid fiber composite material billiard cue comprises: The front support comprises a first core body and a first fiber layer and a first reinforcement layer sequentially stacked on the outer peripheral surface of the first core body; a rear handle detachably connected to the front support, the rear handle comprising a second core body and a second fiber layer, a second reinforcement layer, and a protective layer sequentially stacked on the outer peripheral surface of the second core body; Wherein, the first reinforcement layer and the second reinforcement layer both include a three-dimensional woven structure composed of multiple fibers.

2. The hybrid fiber composite material billiard cue according to claim 1, characterized in that: The first fiber layer and the second fiber layer each include a two-dimensional woven structure composed of at least one type of fiber.

3. The hybrid fiber composite material billiard cue according to claim 1, characterized in that: The protective layer includes a hoop-wound structure composed of at least one fiber.

4. The hybrid fiber composite billiard cue according to any one of claims 1 to 3, characterized in that: The first core and the second core are both foam structural members; The first fiber layer, the second fiber layer, the first reinforcement layer, the second reinforcement layer and the protective layer are all fiber-reinforced resin structural parts, wherein the resin mass proportion in the hybrid fiber composite material billiard cue is 30%-60%.

5. The hybrid fiber composite material billiard cue according to any one of claims 1 to 3, characterized in that: The first reinforcement layer and the second reinforcement layer each include a three-dimensional woven structure composed of first fibers and second fibers, the first fibers having a higher strength than the second fibers, and the second fibers having a higher toughness than the first fibers, wherein a ratio of a volume of the first fibers to a volume of the second fibers is in a range of 1-6; The first fiber layer and the second fiber layer each include a two-dimensional woven structure composed of third fibers; The protective layer includes a hoop-wound structure composed of fourth fibers, and an angle between an extension direction of the fourth fibers in the hoop-wound structure and a cross-sectional direction of the hybrid fiber composite material billiard cue is 5°-45°.

6. The hybrid fiber composite material billiard cue according to any one of claims 1 to 3, characterized in that: The rear handle includes a first end face and a second end face facing each other. The first end face is provided with a bolt, and the bolt extends along the axial direction of the rear handle. The end face of the first end of the front branch is provided with a threaded hole, and the threaded hole cooperates with the bolt to enable the front branch to be detachably connected to the rear handle.

7. The hybrid fiber composite material billiard cue according to claim 6, characterized in that: The hybrid fiber composite billiard cue also includes a protective structure arranged on the second end surface, the protective structure includes a connected back plug and a first connecting member, and the first connecting member is connected to the second end surface so that the back plug covers at least a portion of the second end surface.

8. The hybrid fiber composite material billiard cue according to claim 7, characterized in that: The back plug is a columnar structure, the cross section of the columnar structure along the radial direction of the columnar structure is adapted to the second end surface, the columnar structure includes a first surface and a second surface opposite to each other, the first surface is opposite to the second end surface, the first connecting member is a cylindrical structure, and the diameter of the cylindrical structure is smaller than the diameter of the columnar structure, and the diameter of the second core is smaller than the diameter of the cylindrical structure; The first end of the cylindrical structure is connected to the first surface, and a slot is provided on the second end surface corresponding to the position of the cylindrical structure. The slot is adapted to the cylindrical structure, and the second end of the cylindrical structure is inserted into the slot to fix the rear plug to the rear handle.

9. The hybrid fiber composite material billiard cue according to claim 6, characterized in that: The hybrid fiber composite material billiard cue further includes a ball striking structure disposed at the second end of the front branch, the ball striking structure including: a second connecting member, wherein a first end of the second connecting member is threadedly connected to the second end of the front support, and the second connecting member is a metal structural member; The head is fixedly connected to the second end of the second connecting member, and the head is an elastic member.

10. The hybrid fiber composite material billiard cue according to claim 9, characterized in that: The ball striking structure further comprises: A buffer gasket is located between the second connecting member and the head, and two ends of the buffer gasket are respectively bonded to the second connecting member and the head.

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