Billiard cue carbon fiber profile capable of improving structural performance

Abstract

The invention belongs to the technical field of billiard cues, and discloses a billiard cue carbon fiber profile capable of improving structural performance, the billiard cue carbon fiber profile comprises a front limb and a rear handle, the front limb and the rear handle are formed by bonding and splicing a plurality of pieces of wood, and carbon fibers are arranged at the splicing position of the rear handle; the forelimb is of a hollow structure, a counterweight device is arranged in the forelimb and comprises a lead screw and a counterweight block, the two ends of the lead screw are rotationally connected with the head end and the tail end of the forelimb respectively, the tail end of the lead screw penetrates through the inner wall of the forelimb and is arranged in a connector of the forelimb, the counterweight block is in threaded connection with the lead screw, and the counterweight block is in sliding connection with the inner wall of the forelimb; according to the scheme, the carbon fibers are arranged at the splicing positions of the multiple pieces of wood, the carbon fibers can resist the wet expansion and dry shrinkage effect of the wood, the straightness and shape stability of the wood are kept, bending caused by uneven internal stress of the wood is reduced, and deformation caused by temperature and humidity changes of the wood is reduced; the billiard cue solves the problem that an existing billiard cue is prone to deformation in the manufacturing process.

Description

Technical Field

[0001] The present invention belongs to the technical field of billiard cues, and specifically relates to a billiard cue carbon fiber profile with improved structural performance. Background Art

[0002] Referring to the background technology of the existing publication (announcement) number CN110870972B, the currently commonly used billiard cues are usually composed of a front limb (shaft) and a rear handle (butt). The existing billiard cue production process is: wood material selection → wood drying → wood cutting → wood rough processing → joint-structure processing → assembly → frosting → exterior painting → frosting → topcoat.

[0003] Referring to the document with the existing publication (announcement) number CN103239856A, a billiard cue and its manufacturing method are disclosed, including a cue body and a foreleg, the cue body includes a connected handle and forelimb, the forelimb is composed of several cylindrical woods with longitudinal notches spliced ​​and bonded, each cylindrical wood is composed of several layers of wood boards stacked and bonded; the foreleg is also composed of several layers of wood boards stacked and bonded, and is provided with a central groove, the inner surface of the central groove and the outer surface of the forelimb end are provided with matching threads. The manufacturing method is: first make a square wood, then make a cylindrical wood, mill out the notch and then splice 6 pieces, finally remove the edge, and complete after connecting all parts.

[0004] The wood structure used in the above-mentioned billiard cues is a natural organic product. In the production process of wooden products such as billiard cues, the moisture content of the wood needs to be strictly controlled to maintain its straightness and shape. If the moisture content of the wood is too high, the wood will experience volume shrinkage during the drying process, which may cause the cue to bend. On the contrary, if the wood is too dry, it may absorb moisture and expand in an environment with high humidity. This swelling and shrinking property makes the wood prone to deformation under different temperature and humidity conditions. However, before the billiard cue is surface (painted), the temperature and humidity changes of the outside air will seriously affect the deformation rate of the wood, making the evaporation rate of moisture on the surface and inside of the wood inconsistent, resulting in uneven stress inside the wood, which causes bending, resulting in an increase in product defective rate and increased production costs. Summary of the invention

[0005] The purpose of this scheme is to provide a billiard cue carbon fiber profile with improved structural performance to solve the problem that the existing billiard cue is easy to deform during the manufacturing process.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a billiard cue carbon fiber profile with improved structural performance, including a front limb and a rear handle, wherein the front limb and the rear handle are spliced ​​by a joint, and the front limb and the rear handle are both formed by gluing and splicing multiple pieces of wood, and carbon fiber is provided at the splicing of the rear handle.

[0007] The principle of this solution is that by arranging carbon fibers at the joints of the back handle, the carbon fibers can resist the swelling and shrinking effects of the wood, maintain the straightness and shape stability of the wood, thereby reducing the bending caused by uneven internal stress of the wood, thereby reducing the deformation of the wood caused by changes in temperature and humidity.

[0008] The effects of this solution are: (1) By integrating carbon fiber materials into the joints of the wood, the tensile strength and rigidity of carbon fiber can be used to maintain the shape in an environment with changing temperature and humidity, thereby slowing down the deformation of the wood caused by swelling and shrinkage, and reducing the product defect rate. (2) Carbon fiber can improve the impact resistance of the club, making the club more durable and having a longer service life.

[0009] Furthermore, the joints of the wood are triangular structures, and the joints of multiple pieces of wood are enclosed to form a "Y"-shaped structure; the carbon fiber is a "Y"-shaped structure.

[0010] The principle and effect of this scheme are as follows: (1) The triangular structure of wood is stable and can disperse stress. (2) The carbon fiber of the "Y" structure can make the spliced ​​wood fit together in a triangular structure. At the same time, the "Y"-shaped carbon fiber acts as a skeleton at the joint, which can reinforce the wood in multiple directions and further enhance the strength of the wood joint, thereby reducing the swelling and shrinkage effect of the wood and reducing deformation caused by temperature and humidity changes.

[0011] Furthermore, the forelimb is a hollow structure, and a counterweight device is provided inside the forelimb, and the counterweight device includes a screw rod and a counterweight block, the two ends of the screw rod are respectively rotatably connected to the first and last ends of the forelimb, the end of the screw rod passes through the inner wall of the forelimb and is arranged in the joint of the forelimb, the counterweight block is threadedly connected to the screw rod, and the counterweight block is slidably connected to the inner wall of the forelimb.

[0012] The principle and effect of this scheme are as follows: (1) Referring to CN221692752U, a billiard cue with a forelimb counterweight is provided. The cue is provided with a counterweight in the middle of the inner wall of the forelimb. After the forelimb and the hind limb are assembled, the center of gravity of the entire billiard cue reaches a better position, thereby improving the accuracy of the shot. However, the counterweight of the cue is fixed in the forelimb. Once the position of the counterweight is determined, the center of gravity cannot be adjusted. In fact, different users have different requirements for the position of the center of gravity of the billiard cue due to differences in strength and feel. For players with greater strength and who like to play with force, the center of gravity needs to be slightly backward so that better power transmission can be obtained when hitting the ball. For players who pursue delicate control, the center of gravity needs to be slightly forward so as to control the direction of the cue and the cue ball. Therefore, it is necessary to adjust the position of the counterweight in the forelimb to change the position of the center of gravity to meet the needs of different users. (2) In this solution, when the center of gravity needs to be adjusted, the forelimb is disassembled and then the screw is rotated clockwise or counterclockwise to move the counterweight block laterally inside the forelimb to adjust the position of the counterweight block, thereby adjusting the center of gravity position to meet the individual needs of different users.

[0013] Furthermore, the counterweight device also includes a driving assembly, which includes an inner sleeve and a first magnet. The inner sleeve is two symmetrically arranged arc-shaped inner sleeves, and the first magnet is arranged in the inner sleeve; it also includes a support plate and a first iron block, the support plate is provided with a first groove, the first iron block is slidably arranged in the first groove, the inner sleeve is provided with a second groove matching the first iron block, and the first magnet is used to attract the first iron block.

[0014] The principle and effect of this scheme are as follows: (1) The previous scheme requires the removal of the forelimb to adjust the position of the counterweight, and the forelimb needs to be installed again after adjusting the center of gravity, which is relatively troublesome. This scheme uses the first magnet to attract the first iron block, so that the first iron block is away from the first groove and embedded in the second groove, and then the inner sleeve is rotated to drive the support plate to rotate, thereby driving the screw to rotate, and then adjusting the position of the counterweight in the forelimb. (2) This scheme uses the first magnet to attract the first iron block, and adjusts the position of the center of gravity of the counterweight by rotating the inner sleeve, avoiding the trouble of frequently removing the forelimb of the club.

[0015] Furthermore, the driving assembly also includes an outer sleeve, the inner sleeve is arranged in the outer sleeve, and the inner sleeve is slidably connected to the outer sleeve; the outer sleeve is provided with a third groove, and a second magnet is slidably arranged in the third groove, the second magnet repels the first magnet, and a second iron block is arranged in the inner sleeve, and the second magnet is used to attract the second iron block.

[0016] The principle and effect of this scheme are as follows: (1) The inner sleeve in the above scheme is two incomplete inner sleeves, which makes it more troublesome to rotate. In this scheme, when the center of gravity of the counterweight needs to be adjusted, the second magnet is slid. When the second magnet moves to a position that matches with the first magnet, the inner sleeve is moved to fit with the outer wall of the forelimb joint by using the principle of repulsion between the second magnet and the first magnet, thereby attracting the first iron block, and then the outer sleeve is rotated to adjust the center of gravity. When the center of gravity does not need to be adjusted, the second magnet is slid in the opposite direction. When the second magnet moves to a position that matches with the second iron block, the second magnet is used to attract the second iron block, so that the second iron block drives the inner sleeve away from the outer wall of the joint, so that the first iron block loses the attraction of the first magnet and resets to the first groove. (2) When the second magnet moves to a position that matches with the second iron block, since the inner sleeve is away from the outer wall of the joint, it can also avoid accidentally touching the outer sleeve, which causes the center of gravity of the screw rod to be misplaced.

[0017] Furthermore, a slide groove is provided in the outer sleeve, and the inner sleeve is slidably connected to the slide groove; guide grooves are provided in the first groove and the third groove, and the first iron block and the second magnet are slidably connected to the guide grooves respectively; and the second magnet is fixedly connected to a paddle.

[0018] The principle and effect of this solution are as follows: (1) This is an existing technology. The slide groove and the guide groove respectively provide positioning and guiding functions for the inner sleeve, the second magnet and the second magnet, thereby preventing them from dislocating during the movement process. (2) A paddle is provided on the second magnet to facilitate the user to slide the second magnet by sliding the paddle.

[0019] Furthermore, a support component is also provided in the forelimb, and the support component includes a spring and a support plate. One end of the spring is fixedly connected to the counterweight block, and the other end is fixedly connected to the support plate. The support plate is in contact with the inner wall of the forelimb. The support plate is a support plate supported by ferromagnetic material, and the support plate is arranged in cooperation with the first magnet.

[0020] The principle and effect of this scheme are as follows: (1) During the use of the golf club, the wood material used for the golf club is easily deformed and bent due to the influence of external forces (such as the impact when hitting the ball) and changes in environmental temperature and humidity. In reality, the bent golf club is usually tested for bending by rolling it on a table. The bent golf club will deviate from the straight trajectory when rolling, so as to determine whether the golf club is bent. However, the trajectory deviation caused by the slight bend of the golf club during rolling is very subtle and difficult to detect with the naked eye. At the same time, the bending of the inner wall of the forelimb of the golf club will not significantly affect the rolling trajectory of the outer surface of the golf club, resulting in the fact that even if the inner wall is bent, it is difficult to identify it through rolling detection. Although the slight bend does not affect the use in the short term, if it is not detected and corrected, it will gradually lead to serious bending. Therefore, it is necessary to detect the slight bend of the golf club. (2) In this scheme, since the two ends of the spring are connected to the counterweight and the support plate respectively, the support plate fits the inner wall of the forelimb, and when the screw rotates to drive the counterweight to move, although the diameter of the inner wall of the forelimb changes from large to small or from small to large, the spring can be compressed so that the support plate can always fit the inner wall of the forelimb. When it is necessary to detect whether the club is bent, the second magnet is moved to a position that matches the first magnet by sliding the paddle, and then the outer sleeve is rotated to rotate the screw. If the club is not bent, the support plate will move to the front end limit position of the club. At this time, the outer sleeve has been rotated to the limit position and cannot be rotated any further. If the club is bent, the support sheet will be stuck at the bent position. At this time, it is difficult for the outer sleeve to rotate. Then the paddle is moved in the reverse direction to move the second magnet to a position that matches the second iron block. Then the outer sleeve is moved and moved on the outer wall of the forelimb. If the forelimb is not bent, when the outer sleeve moves to the front end of the club, the first magnet on the inner sleeve will be attracted by the support sheet, so that the outer sleeve is fixed at the extreme position of the front end of the club, indicating that there is no bending on both the inner and outer walls of the club. If the forelimb is bent, when the outer sleeve moves on the outer wall of the forelimb, the support sheet in the bent position will attract the first magnet, causing the outer sleeve to be fixed in the bent position, so that the bent part of the forelimb of the club can be detected. (3) When the club is bent, the reverse bending is generally used to correct the original bending and restore the straightness of the club by using the reverse force. However, the reverse bending will generate stress on the bent position, and if the outer wall of the forelimb is not supported during bending, stress concentration will occur, which will further damage the club. At the same time, the existing golf club does not support the inner wall of the forelimb when straightening, resulting in stress on the inner wall, so that the club will still bend after hitting the ball many times. In this solution, after the club is bent, the support sheet and the inner sleeve are moved to the inner wall and outer wall of the bent part of the forelimb. At this time, the club is bent in the reverse direction. Due to the support of the support sheet and the inner sleeve, the bent position is supported during the reverse bending, thereby reducing stress concentration and avoiding further damage to the club during the reverse bending.(4) After the club is bent, it needs to be lifted so that it can be freely straightened in the direction of its own gravity. In this solution, after the club is straightened, the support plate and the inner sleeve can continue to be fixed in the bent position, thereby providing support for the lifting and straightening, reducing stress concentration, and helping the club to restore its straightness more evenly during the lifting process.

[0021] Furthermore, the support plates are two symmetrically arranged arc-shaped support plates, and the slope of the support plates is equal to the taper of the forelimbs.

[0022] The principle and effect of this solution are: through the above arrangement, when the support sheet moves inside the forelimb, the support sheet always fits with the inner wall of the forelimb, thereby performing bending detection and straightening support on the inner wall of the forelimb.

[0023] Furthermore, the inner sleeve is provided with a rotating shaft, the rotating shaft is slidably arranged in the sliding groove, and the inner sleeve is matched with the outer wall of the forelimb.

[0024] The principle and effect of this solution are as follows: the inner sleeve is rotatably connected to the slide groove, so that when the inner sleeve slides along the outer wall of the forelimb, the inner sleeve always fits on the outer wall of the forelimb, so that the first magnet on the inner sleeve and the support sheet can cooperate with each other during detection. At the same time, when straightening, the inner sleeve fits on the outer wall of the forelimb to increase the support area of ​​the forelimb.

[0025] Furthermore, the rotating shaft is provided with a torsion spring.

[0026] The principle and effect of this solution are: after the club is tested and straightened, the outer sleeve is removed from the forelimb, the torsion spring drives the inner sleeve to rotate and reset, so that the inner sleeve is reset to a horizontal position, and then the outer sleeve and the inner sleeve are re-inserted into the forelimb joint position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a carbon fiber profile for billiard cues with improved structural performance according to the present invention; Figure 2 It is a schematic diagram of the structure of wood and carbon fiber of the present invention; Figure 3 It is a schematic diagram of the internal structure of the forelimb of the present invention; Figure 4 The structure of the drive assembly of the present invention is schematically shown in FIG. Figure 1 ; Figure 5 The structure of the drive assembly of the present invention is schematically shown in FIG. Figure 2 ; Figure 6 is a side view of the inner sleeve and the outer sleeve of the present invention; Figure 7 It is a schematic diagram of the structure of the support assembly of the present invention; Figure 8It is a structural schematic diagram of the cooperation state of the support assembly and the drive assembly of the present invention.

[0028] The figure marks in the drawings of the specification include: forelimb 1, rear handle 2, wood 3, carbon fiber 4, counterweight device 5, screw rod 51, counterweight block 52, drive assembly 53, outer sleeve 531, third groove 5311, slide groove 5312, inner sleeve 532, second groove 5321, rotating shaft 5322, first magnet 533, support plate 534, first groove 5341, first iron block 535, second magnet 536, second iron block 537, paddle 538, support assembly 54, spring 541, support plate 542. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the concept and technical effects of the present invention in combination with the embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention: Embodiment 1: See also Figure 1-Figure 3 A billiard cue carbon fiber profile with improved structural performance includes a front limb 1 and a back handle 2, the front limb 1 and the back handle 2 are detachably spliced ​​by a joint 11, the front limb 1 and the back handle 2 are both made of three triangular-structured wood (maple) 3 bonded and spliced ​​by a high-strength adhesive, and a "Y"-shaped carbon fiber 4 is arranged at the splicing of the three woods 3 located at the back handle 2. By arranging the carbon fiber 4 at the splicing of the three woods 3, the carbon fiber 4 can resist the swelling and shrinking effect of the wood, maintain the straightness and shape stability of the wood 3, thereby reducing the bending caused by the uneven internal stress of the wood 3, thereby reducing the deformation of the wood 3 caused by changes in temperature and humidity. At the same time, the "Y"-shaped carbon fiber 4 can make the spliced ​​wood 3 fit each other in a triangular structure, can reinforce the wood 3 in multiple directions, and further enhance the strength of the splicing of the wood 3.

[0030] Embodiment 2: The difference between this embodiment and the previous embodiment is that the forelimb 1 of the golf club is improved to adjust the position of the counterweight 52 in the forelimb 1, thereby changing the position of the center of gravity to meet the needs of different users.

[0031] See also Figure 3-Figure 6The forelimb 1 is a hollow structure, and a counterweight device 5 is provided inside the forelimb 1. The counterweight device 5 includes a screw rod 51 and a counterweight block 52 (using a lead block). The two ends of the screw rod 51 are rotatably connected to the first and last ends of the forelimb 1 respectively. The end of the screw rod 51 passes through the inner wall of the forelimb 1 and is arranged in the joint 11 of the forelimb 1. The counterweight block 52 is threadedly connected to the screw rod 51, and the counterweight block 52 is slidably connected to the inner wall of the forelimb 1; the counterweight device 5 also includes a driving component 53, and the driving component 53 The drive assembly 53 comprises an outer sleeve 531 and an inner sleeve 532. The inner sleeve 532 is two symmetrically arranged arc-shaped inner sleeves 532. A slide groove 5312 is provided in the outer sleeve 531. The inner sleeve 532 is slidably connected to the slide groove 5312. The slide groove 5312 provides positioning and guiding for the movement of the inner sleeve 532. A first magnet 533 is provided in the inner sleeve 532. The drive assembly 53 also comprises a support plate 534 and a first iron block 535. The support plate 534 is connected to the joint 11 is rotatably connected, the end of the screw rod 51 is fixedly connected to the support plate 534, the support plate 534 is provided with a first groove 5341, the first iron block 535 is slidably arranged in the first groove 5341, the inner sleeve 532 is provided with a second groove 5321 matching the first iron block 535, so that a part of the first iron block 535 can be embedded in the second groove 5321, and the first magnet 533 is used to attract the first iron block 535; the outer sleeve 531 is provided with a third groove 5311, and the second magnet 536 is slidably arranged in the third groove 5311. The magnetism of the second magnet 536 is the same as that of the first magnet 533, so that the second magnet 536 repels the first magnet 533, and the second magnet 536 is fixedly connected with a paddle 538, so that the user can slide the second magnet 536 by sliding the paddle 538; the inner sleeve 532 is provided with a second iron block 537, and the second magnet 536 is used to attract the second iron block 537. It should be noted that in order to ensure that the first iron block 535 and the second magnet 536 provide positioning and guiding functions and avoid dislocation during their movement, guide grooves (not shown in the figure) are provided in the first groove 5341 and the third groove 5311, and the first iron block 535 and the second magnet 536 are slidably connected to the guide grooves respectively.

[0032] See also Figure 4 When the user needs to adjust the center of gravity of the counterweight, the second magnet 536 is moved by sliding the paddle 538. When the second magnet 536 moves to a position matching the first magnet 533, the inner sleeve 532 is moved to fit the outer wall of the joint 11 of the forelimb 1 by utilizing the principle of repulsion between the second magnet 536 and the first magnet 533, thereby attracting the first iron block 535, and then making the first iron block 535 move away from the first groove 5341 and embed into the second groove 5321, and then rotating the outer sleeve 531 to drive the support plate 534 to rotate, thereby driving the screw rod 51 to rotate, and then adjusting the position of the counterweight block 52 in the forelimb 1.

[0033] See also Figure 5When the center of gravity does not need to be adjusted, the reverse sliding paddle 538 drives the second magnet 536 to reset. When the second magnet 536 moves to a position matching with the second iron block 537, the second magnet 536 attracts the second iron block 537, so that the second iron block 537 drives the inner sleeve 532 away from the outer wall of the joint 11, so that the first iron block 535 loses the attraction of the first magnet 533 and resets to the first groove 5341. In addition, since the inner sleeve 532 is away from the outer wall of the joint 11, it can also avoid accidentally touching the outer sleeve 531, which causes the center of gravity of the screw rod 51 to move by mistake.

[0034] Embodiment 3: The difference between this embodiment and the previous embodiment is that the slight bending of the golf club is detected and straightening support is provided.

[0035] See also Figure 7 and Figure 8 A support assembly 54 is also provided in the forelimb 1, and the support assembly 54 includes a spring 541 and two symmetrically arranged support sheets 542, the support sheet 542 is an arc-shaped support sheet 542, and the slope of the support sheet 542 is equal to the taper of the forelimb 1, so that when the support sheet 542 moves in the forelimb 1, the support sheet 542 always fits with the inner wall of the forelimb 1, thereby performing bending detection and straightening support on the inner wall of the forelimb 1, and the support sheet 542 is a support sheet supported by ferromagnetic material. The support sheet 542 is, for example, an iron sheet, and the support sheet 542 is arranged in cooperation with the first magnet 533; the inner sleeve 532 is provided with a rotating shaft 5322, and the rotating shaft 5322 is slidably arranged in the slide groove 5312, so that the inner sleeve 532 is rotatably connected with the slide groove 5312, so that when the inner sleeve 532 slides along the outer wall of the forelimb 1, the inner sleeve 532 always fits on the outer wall of the forelimb 1, so that the first magnet 533 on the inner sleeve 532 and the support sheet 542 can cooperate with each other during detection. At the same time, when straightening, the inner sleeve 532 fits on the outer wall of the forelimb 1 to increase the support area of ​​the forelimb 1. It should be noted that a torsion spring (not shown in the figure) is provided on the rotating shaft 5322 so that after the club is tested and straightened, the outer sleeve 531 can be removed from the forelimb 1, and the inner sleeve 532 can be driven to rotate by the torsion spring to reset the inner sleeve 532 to a horizontal position, and then the outer sleeve 531 and the inner sleeve 532 can be re-inserted into the joint 11 position of the forelimb 1.

[0036] The specific working conditions are as follows: See also Figure 7 Since the two ends of the spring 541 are respectively connected to the counterweight block 52 and the support plate 542, the support plate 542 fits the inner wall of the forelimb 1, and when the screw rod 51 rotates to drive the counterweight block 52 to move, although the diameter of the inner wall of the forelimb 1 changes from large to small or from small to large, since the spring 541 can be compressed, the support plate 542 can always fit the inner wall of the forelimb 1.

[0037] See also Figure 4 , Figure 5 and Figure 8 When it is necessary to detect whether the club is bent, the second magnet 536 is moved to a position matching with the first magnet 533 by sliding the paddle 538, and then the outer sleeve 531 is rotated to rotate the screw rod 51. If the club is not bent, the support sheet 542 will move to the front end limit position of the club. At this time, the outer sleeve 531 has been rotated to the limit position and cannot be rotated. If the club is bent, the support sheet 542 will be stuck at the bent position, and it is difficult for the outer sleeve 531 to rotate. Then the paddle 538 is moved in the opposite direction to move the second magnet 536 to a position matching with the second iron block 537, and then the outer sleeve 531 is moved and moved on the outer wall of the forelimb 1. If the forelimb 1 is not bent, when the outer sleeve 531 moves to the front end position of the club, the first magnet 533 on the inner sleeve 532 will be attracted by the support sheet 542, so that the outer sleeve 531 is fixed at the limit position of the front end of the club, indicating that there is no bending in both the inner and outer walls of the club. If the forelimb 1 is bent, when the outer sleeve 531 moves on the outer wall of the forelimb 1, the support piece 542 in the bent position will attract the first magnet 533, causing the outer sleeve 531 to be fixed in the bent position, so that the bent part of the forelimb 1 of the club can be detected.

[0038] After the club is bent, the support sheet 542 and the inner sleeve 532 are moved to the inner wall and the outer wall of the bent part of the forelimb 1. At this time, the club is bent in the reverse direction to be straightened. Due to the support of the support sheet 542 and the inner sleeve 532, the bent position is supported during the reverse bending, thereby reducing stress concentration and preventing the club from being further damaged during the reverse bending. After bending, the support sheet 542 and the inner sleeve 532 can continue to be fixed at the bent position, thereby providing support for the lifting and straightening, reducing stress concentration, and helping the club to restore straightness more evenly during the lifting process.

[0039] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A billiard cue carbon fiber profile with improved structural performance, comprising a front limb (1) and a rear handle (2), wherein the front limb (1) and the rear handle (2) are spliced ​​via a joint (11), and the front limb (1) and the rear handle (2) are both formed by gluing and splicing a plurality of pieces of wood (3), characterized in that: Carbon fibers (4) are provided at the joint of the rear handle (2).

2. The carbon fiber profile for billiard cues with improved structural performance according to claim 1, characterized in that: The joints of the wood (3) are triangular structures, and the joints of multiple pieces of wood (3) are combined to form a "Y"-shaped structure; the carbon fibers (4) are of a "Y"-shaped structure.

3. The carbon fiber profile for billiard cues with improved structural performance according to claim 1, characterized in that: The forelimb (1) is a hollow structure. A counterweight device (5) is provided inside the forelimb (1). The counterweight device (5) comprises a screw rod (51) and a counterweight block (52). The two ends of the screw rod (51) are rotatably connected to the first and last ends of the forelimb (1), respectively. The end of the screw rod (51) passes through the inner wall of the forelimb (1) and is arranged in a joint (11) of the forelimb (1). The counterweight block (52) is threadedly connected to the screw rod (51). The counterweight block (52) is slidably connected to the inner wall of the forelimb (1).

4. The carbon fiber profile for billiard cues with improved structural performance according to claim 3, characterized in that: The counterweight device (5) further comprises a driving assembly (53), wherein the driving assembly (53) comprises an inner sleeve (532) and a first magnet (533), wherein the inner sleeve (532) is two symmetrically arranged arc-shaped inner sleeves (532), and the first magnet (533) is arranged in the inner sleeve (532); and further comprises a support plate (534) and a first iron block (535), wherein the support plate (534) is provided with a first groove (5341), wherein the first iron block (535) is slidably arranged in the first groove (5341), and wherein the inner sleeve (532) is provided with a second groove (5321) matching the first iron block (535), and wherein the first magnet (533) is used to attract the first iron block (535).

5. The carbon fiber profile for billiard cues with improved structural performance according to claim 4, characterized in that: The driving assembly (53) further comprises an outer sleeve (531), the inner sleeve (532) being arranged inside the outer sleeve (531), and the inner sleeve (532) being slidably connected to the outer sleeve (531); the outer sleeve (531) is provided with a third groove (5311), a second magnet (536) being slidably arranged inside the third groove (5311), the second magnet (536) and the first magnet (533) repelling each other, and a second iron block (537) being arranged inside the inner sleeve (532), the second magnet (536) being used to attract the second iron block (537).

6. The carbon fiber profile for billiard cues with improved structural performance according to claim 5, characterized in that: A sliding groove (5312) is provided in the outer sleeve (531), and the inner sleeve (532) is slidably connected to the sliding groove (5312); guide grooves are provided in the first groove and the third groove (5311), and the first iron block (535) and the second magnet (536) are respectively slidably connected to the guide grooves; and the second magnet (536) is fixedly connected to a paddle (538).

7. The carbon fiber profile for billiard cues with improved structural performance according to claim 6, characterized in that: A support assembly (54) is also provided in the forelimb (1), the support assembly (54) comprising a spring (541) and a support plate (542), one end of the spring (541) being fixedly connected to the counterweight (52), and the other end of the spring (541) being fixedly connected to the support plate (542), the support plate (542) being in contact with the inner wall of the forelimb (1), the support plate (542) being a support plate (542) supported by a ferromagnetic material, and the support plate (542) being arranged in cooperation with the first magnet (533).

8. The carbon fiber profile for billiard cues with improved structural performance according to claim 7, characterized in that: The support plates (542) are two symmetrically arranged arc-shaped support plates (542), and the slope of the support plates (542) is equal to the taper of the forelimb (1).

9. The carbon fiber profile for billiard cues with improved structural performance according to claim 8, characterized in that: The inner sleeve (532) is provided with a rotating shaft (5322), and the rotating shaft (5322) is slidably arranged in the sliding groove (5312). The inner sleeve (532) is arranged in cooperation with the outer wall of the forelimb (1).

10. The carbon fiber profile for billiard cues with improved structural performance according to claim 9, characterized in that: The rotating shaft (5322) is provided with a torsion spring.

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