CN108992877A - Joint structure of bat - Google Patents

Abstract

A ball bat combining structure is provided with a hollow bat body with an inner space, the hollow bat body comprises at least one joint part which is mutually jointed and jointed, and a clamping groove is formed between the joint parts which are mutually jointed; and at least one fixed connecting pipe, the fixed connecting pipe comprises a convex block which is embedded in the clamping groove and faces the joint part, and an abutting section which is far away from one end of the convex block and is connected with the joint part, the connecting position between the joints of the hollow bat body is more stable through the fixed connecting pipe, the design effect of the whole bat is not reduced, the overall strength and the high design performance of the bat can be improved, the hand numbness feeling during the playing is effectively relieved, the playing feeling is improved, and the durability of the bat is higher.

Description

bat combination

technical field

The present invention relates to a bat, and more particularly to a bat joint structure that increases the joint strength of the bat.

Background technique

Please refer to Fig. 1 and Fig. 2, the existing bat 1 is made of a single material and is integrally formed. When the batter hits the ball with a hitting part 11 of the bat 1, an impact will be generated. energy, the impact energy is transmitted from the hitting portion 11 and a slanted portion 12 of the bat 1 to a grip portion 13 held by the batter’s hand, because it is difficult for the slanted portion 12 to achieve the shock absorption effect, the It is easy to cause injury to the striker's hand.

The segmented structure of another existing composite bat 2 is shown in Fig. 3 and Fig. 4. This composite bat 2 has a ball striking part 21, and a The slanted section 22 integrally connected with a grip 23 is easy to break when the ball is hit, and the first thing that can be expected is that the hitting effect of the ball-hitting part 21 is not good. Therefore, in order to prevent the slanted portion 22 from being broken during use, at least one bonding member (such as a resin sheet) needs to be added to strengthen the structural relationship between the ball striking portion 21 and the slanted portion 22 .

In order to be able to stabilize and strengthen the segmented structure of the composite bat 2 , it is necessary to add the bonding member to the structure of each segment to improve the risk of easy breakage. Therefore, the bat combination structure of the present invention maintains the performance advantages of each part of the bat, improves the overall strength and high design of the bat, and alleviates the feeling of hand numbness when playing, improves the feeling of hitting, and makes the bat durable. higher performance to solve the above problems.

Contents of the invention

The object of the present invention is to provide a more stable connection position between the joints of the bat, so that the design effect of lifting the whole bat is not reduced, and the overall strength of the bat can be improved, and the design is high. The combination structure of the bat effectively relieves the feeling of numbness when playing, improves the feeling of hitting, and makes the bat more durable.

To achieve the purpose of the aforementioned invention, the present invention is a bat combination structure, the bat has a hollow body with an inner space, and the hollow body includes at least one joint part that engages with each other, and the joined parts of the joint part A clamping groove is formed between them; and at least one fixed connection tube, the fixed connection tube includes a convex block which is fitted in the clamping groove towards the joint part, and an end away from the convex block and

Connect the abutment section of the junction.

Furthermore, the joint part of the hollow rod body is one, the hollow rod body is provided with a ball-hitting part, a first joint section is arranged below the ball-hitting part, and a head cover part is arranged above the ball-hitting part; and a grip A holding portion, a fourth engaging section is arranged above the holding portion, a stop portion is arranged below the holding portion, and the fourth engaging section is connected to the first engaging section of the hitting portion with an outer diameter larger than the holding portion. The oblique segment part of the outer diameter of the part, the oblique segment part has a second engaging segment engaged with the first engaging segment of the hitting part, and a second engaging segment integrally connected with the fourth engaging segment of the grip part The third joint section of the ball-hitting part is sleeved on the outside of the second joint section of the oblique section so that the clamping is formed between the first joint section and the second joint section. Groove; wherein, the fixed connecting pipe is one, and the convex block of the fixed connecting pipe is fitted toward the clamping groove between the first joint section and the second joint section, above the abutting section of the fixed joint A groove is provided to provide the bottom end of the first joining section to join, and the abutting section of the fixing pipe has a through hole communicating with the internal space inside, and the second joining section is provided in the through hole, so that the fixing The abutting section of the connecting pipe is annularly engaged with the outer side of the second engaging section.

Furthermore, the joint part of the hollow rod body is one, and the hollow rod body is provided with a ball-hitting part, and a first joint section is arranged under the ball-hitting part, and the first joint section connects a ball with an outer diameter smaller than the ball The oblique section of the outer diameter of the portion, the oblique section has a second engagement section integrally connected with the first engagement section of the hitting portion, and a second engagement section far away from the second engagement section and having an outer diameter smaller than the second engagement section A third joint segment with a section outer diameter, a head cover portion is arranged above the ball striking portion; and a grip portion, a fourth joint joint that is engaged with the third joint segment of the oblique segment portion is disposed above the grip portion section, the third joint section of the oblique section is sleeved on the outside of the fourth joint section of the handle, so that the clamping groove is formed between the third joint section and the fourth joint section, and the grip An abutting portion is arranged under the holding portion; wherein, there is one fixed connecting pipe, and the convex block of the fixed connecting pipe fits toward the clamping groove between the third joint section and the fourth joint section, and the fixed joint A groove is provided above the abutting section of the connecting pipe to provide the bottom end of the third engaging section, and the abutting section of the fixed connecting pipe has a through hole communicating with the internal space, and the fourth engaging section is provided in the through hole. section penetrates, so that the abutting section of the fixed connecting pipe is annularly engaged on the outside of the fourth engaging section.

Furthermore, the hollow rod forms two joining parts that engage with each other, and the clamping grooves are respectively formed between the joints of each joining part, and each of the clamping grooves is respectively connected with the Fixed over.

Furthermore, the hollow rod body is provided with a ball-hitting part, a slanted section and a gripping part, a first joint section is arranged below the ball-hitting part, a head cover is arranged above the ball-hitting part, and the slanted section having a second engagement section cohesively engaged with the first engagement section of the ball striking portion, the outer diameter of the second engagement section of the sloped section being smaller than the outer diameter of the first engagement section of the ball striking portion, and a third joint section far away from one end of the second joint section and having a smaller outer diameter than the second joint section, a fourth joint section engaged with the third joint section of the oblique section is arranged above the gripping portion, The outer diameter of the fourth joint section of the grip portion is smaller than the outer diameter of the third joint section of the oblique section, and a stop portion is arranged below the grip portion to accommodate the first joint section of the ball-hitting portion. Sleeve on the outside of the second joint section of the oblique section, so that the clamping groove is formed between the first joint section and the second joint section, and the third joint section of the oblique section is sleeved on the On the outer side of the fourth joint section of the gripping portion, the clamping groove is formed between the third joint section and the fourth joint section; wherein, there are two fixed joints, one of which is the convex block of the fixed joint Fitting towards the clamping groove between the first joint section and the second joint section, a groove is provided above the abutting section of the fixed connecting pipe to provide the bottom end of the first joint section to engage, and a groove for the bottom end of the first joint section is provided. The abutting section of the fixed connecting pipe has a through hole communicating with the internal space, and the second connecting section is provided in the through hole, so that the abutting section of the fixed connecting pipe is ring-jointed on the second connecting section. On the outside, the protruding block of the other fixing pipe fits toward the clamping groove between the third joint section and the fourth joint section, and an upper part of the abutting section of the other fixed joint is provided to provide the The groove joined by the bottom end of the third joint section, and the through hole inside the abutment section of the other fixed joint provide the penetration of the fourth joint section, so that the abutment section of the fixed joint is ring-jointed on the The outside of the fourth joint segment.

Furthermore, the connection between the fixed joint and the junction is joint, or heat-shrink with boiling water, and the temperature of the boiling water is controlled at 50° C. to 95° C. to shrink and embed the connection.

Furthermore, the length of the fixed connecting pipe is 5.0mm-30.0mm, and the length of the convex block of the fixed connecting pipe is 3.0mm-18.0mm.

Furthermore, the convex block and the abutting section of the fixing tube are integrated, and the outer surface of the abutting section of the fixing tube is concave-convex, or ring-shaped, or laser engraved, or irregularly shaped.

Furthermore, the part where the convex block of the fixing pipe is in contact with the clamping groove of the joint part matches the shape of the joint part to be curved, or internally chamfered, or internally small convexly formed, and Form a straight cone, or a cone, or a triangular shape.

Further, the material of the fixing pipe is selected from resin materials with a specific gravity of 0.7-1.9, the resin material is a synthetic resin (celluloid), or ABS thermoplastic polymer material (acrylonitrile butadiene styrene), or PC polycarbonate (polycarbonate), or use high-strength rubber materials containing PUR polyurethane (polyurethane).

Furthermore, the ball-hitting part, the oblique section and the grip part of the hollow rod are composed of the same material, or the three are made of different materials, wherein the ball-hitting part, the oblique section and the grip The material of the holding part is selected from light metals with a specific gravity of 1.5 to 2.9. The light metals are aluminum alloys or magnesium alloys, or FRP made of CFRP carbon fiber reinforced plastics (carbon fiber reinforced plastics) or GFRP glass fiber reinforced plastics (glass fiber reinforced plastics). Fiber reinforced plastics, or high-strength plastic materials with a strength of 5kgf/mm ² containing PC polycarbonate, or engineering plastics represented by PC polycarbonate ), or high-strength plastics made of super engineering plastics (super engineering plastics) represented by PEEK polymer materials (polyether ether ketone) with a strength of 3kgf/mm ² -9kgf/mm ² .

With this innovative and unique design, the present invention can roughly achieve the following effects compared with the prior art:

1. In the present invention, the connection between the joint parts of the hollow rod body is connected through the fixed connection tube to make the connection position between the joint parts of the hollow rod body more stable, so that the entire club can be lifted The design effect is not reduced, and the overall strength and high design of the bat can be improved.

2. The connection between the joint part of the hollow rod body and the fixed connection pipe of the present invention is fixed by bonding or boiling water heat shrinkage, so that the connection between the joint part of the hollow rod body and the fixed connection pipe is more stable .

3. The joint part of the hollow rod of the present invention achieves the required function of the joint part of the hollow rod through the combination of composite materials, effectively alleviates the feeling of hand numbness when playing, improves the feeling of playing, and makes the The durability of the bat is higher.

Description of drawings

Fig. 1 is a partially cutaway perspective view of a conventional ball bat.

FIG. 2 is a cross-sectional view of FIG. 1 .

Fig. 3 is a partially cutaway perspective view of another conventional composite ball bat.

FIG. 4 is a cross-sectional view of FIG. 3 .

Fig. 5 is a partially cutaway perspective view of the first embodiment of the hollow rod and a joint part of the present invention.

Fig. 6 is a partially cutaway perspective view of a second embodiment of a hollow rod and a joint part of the present invention.

Fig. 7 is a partially cutaway perspective view of the first embodiment of the hollow rod and two joint parts of the present invention.

FIG. 8 is a cross-sectional view of FIG. 7 .

Fig. 9 is a partially enlarged view of the connection between the fixed connecting pipe and the ball-hitting part and the oblique section in Fig. 7 .

FIG. 10 is a partial enlarged view of the connection between the fixed connecting pipe and the oblique section and the gripping portion of FIG. 7 .

Fig. 11 is a partially cutaway perspective view of the second embodiment of the hollow rod body and two joint parts of the present invention.

FIG. 12 is a cross-sectional view of FIG. 11 .

Fig. 13 is a partial enlarged view of the connection between the fixed connecting pipe of Fig. 11 and the ball-hitting part and the oblique section.

Fig. 14 is a partial enlarged view of the connection between the fixed connecting pipe of Fig. 11 and the oblique section and the gripping part.

Fig. 15 is a partially cutaway perspective view of a third embodiment of a hollow rod and two joints according to the present invention.

FIG. 16 is a cross-sectional view of FIG. 15 .

Fig. 17 is a partially enlarged view of the connection between the fixed connecting pipe of Fig. 15 and the ball-hitting part and the oblique section.

FIG. 18 is a partially enlarged view of the connection between the fixed connecting pipe and the oblique section and the gripping portion of FIG. 15 .

Wherein reference sign is:

Bat 1 Hitting part 11, 21

Inclined section 12, 22 Gripping section 13, 23

Composite bat 2

Bat 3 Hollow body 4

Joint 40 Internal space 400

Clamping groove 401 Hitting part 41

First joint section 411 Cranial part 412

Gripping part 42 Fourth joint section 421

Stop part 422 Inclined section 43

Second joining section 431 Third joining section 432

Fixed connection 5, 5a, 5b Convex block 51, 51a, 51b

Abutment section 52, 52a, 52b Groove 521

Through hole 522

Detailed ways

The following describes in detail how the structure of the present invention is combined and used in conjunction with the attached diagrams, and it should be easier to understand the purpose, technical content, characteristics and effects of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same numerals.

5, 6 and 7, the present invention provides a bat combination structure, the bat 3 has a hollow body 4 with an inner space 400, and the hollow body 4 includes at least one joint that engages with each other part 40, and a clamping groove 401 is formed between the connecting parts 40; and

At least one fixed connecting pipe 5, the fixed connecting pipe 5 includes a convex block 51 that fits into the clamping groove 401 of the joint part 40, and an abutment that is away from the end of the convex block 51 and connects the joint part 40 Connect to paragraph 52.

Please refer to FIG. 5 , which is a partially cutaway perspective view of the first embodiment of the hollow rod and a joint part of the present invention. In the present invention, the hollow rod body 4 is formed with one joint portion 40 that engages with each other. The hollow rod body 4 is provided with a ball-hitting portion 41, and a first joint section 411 is arranged below the ball-hitting portion 41. The ball-hitting portion 41 A cranium portion 412 is set above; and a grip portion 42, a fourth joint segment 421 is set above the grip portion 42, a stopper portion 422 is set below the grip portion 42, and the fourth joint segment 421 faces the strike The first joint section 411 of the ball part 41 is connected to a slant section 43 whose outer diameter is larger than that of the handle 42 . The second engaging section 431 that is engaged and engaged, and a third engaging section 432 that is integrally connected with the fourth engaging section 421 of the grip portion 42 , is sleeved on the first engaging section 411 of the hitting portion 41 The outer side of the second joint section 431 of the oblique section 43 forms the clamping groove 401 between the first joint section 411 and the second joint section 431; The convex block 51 fits toward the clamping groove 401 between the first joint section 411 and the second joint section 431 , and an upper portion of the abutment section 52 of the fixed adapter 5 is provided to provide the first joint section. The groove 521 joined by the bottom end of 411, the abutment section 52 of the fixed adapter 5 has a through hole 522 communicating with the inner space 400 inside, and the second joint section 431 is provided in the through hole 522 to penetrate, so that the fixed The abutting section 52 of the connection tube 5 is annularly engaged with the outer side of the second engaging section 431 .

Please refer to FIG. 6 , which is a partially cutaway perspective view of a second embodiment of a hollow rod and a joint part of the present invention. In the present invention, the hollow rod body 4 is formed with one joint portion 40 that engages with each other. The hollow rod body 4 is provided with a ball-hitting portion 41, and a first joint section 411 is arranged below the ball-hit portion 41. The first joint section 411 is connected to an oblique section 43 whose outer diameter is smaller than the outer diameter of the ball striking part 41, and the oblique section 43 has a second joint section 431 integrally connected with the first joint section 411 of the ball striking part 41, and A third joint section 432 away from the second joint section 431 and having an outer diameter smaller than the outer diameter of the second joint section 431, a head cover 412 is arranged above the ball striking part 41; and a grip part 42, the grip part 42 is provided with a fourth engaging section 421 engaged with the third engaging section 432 of the oblique section 43 , and the third engaging section 432 of the oblique section 43 is sleeved on the gripping section 42 . On the outer side of the fourth joint section 421, the clamping groove 401 is formed between the third joint section 432 and the fourth joint section 421, and a stopper portion 422 is provided under the gripping portion 42; wherein, the fixed connecting pipe 5 is One, the convex block 51 of the fixed connecting pipe 5 fits toward the clamping groove 401 between the third engaging section 432 and the fourth engaging section 421 , and the abutting section 52 of the fixing connecting pipe 5 is disposed above A groove 521 for engaging the bottom end of the third engaging section 432, the abutting section 52 of the fixing adapter 5 has a through hole 522 communicating with the inner space 400, and the fourth engaging section is provided in the through hole 522 421 penetrates through, so that the abutting section 52 of the fixed connecting pipe 5 is annularly engaged on the outside of the fourth engaging section 421 .

Please refer to FIGS. 7 and 8 and FIGS. 9 and 10 , which are partial sectional perspective views of the first embodiment of the hollow rod body and the two joint parts of the present invention. The hollow rod body 4 has two connecting parts 40 that are connected to each other, and the fixed connecting pipe 5 is connected between each connecting part 40 . More specifically, the hollow rod body 4 is provided with a ball-hitting portion 41 , a slanted portion 43 and a grip portion 42 , a first joint section 411 is arranged below the ball-hitting portion 41 , and a head is arranged above the ball-hitting portion 41 . The cover portion 412, the oblique section 43 has a second engaging section 431 engaged with the first engaging section 411 of the hitting portion 41, the outer diameter of the second engaging section 431 of the oblique section 43 is smaller than the The outer diameter of the first joint section 411 of the hitting part 41, and a third joint section 432 which is far away from the end of the second joint section 431 and has an outer diameter smaller than the second joint section 431, and a The fourth joint section 421 engaged with the third joint section 432 of the oblique section 43 , the outer diameter of the fourth joint section 421 of the holding part 42 is smaller than the third joint section of the oblique section 43 432, a stop portion 422 is provided under the gripping portion 42, and the first engaging section 411 of the hitting portion 41 is sleeved on the outside of the second engaging section 431 of the oblique section 43, so that the The clamping groove 401 is formed between the first joint section 411 and the second joint section 431 , and the third joint section 432 of the oblique section 43 is sleeved on the fourth joint section 421 of the handle 42 . On the outside, the clamping groove 401 is formed between the third joint section 432 and the fourth joint section 421; wherein, there are two fixed joints 5, and the convex block 51 of one fixed joint 5 faces the first The clamping groove 401 between the joint section 411 and the second joint section 431 is fitted, and a groove 521 is provided above the abutting section 52 of the fixed connecting pipe 5 to provide the engagement of the bottom end of the first joint section 411 The abutting section 52 of the fixed connecting pipe 5 has a through hole 522 communicating with the inner space 400 inside, and the second connecting section 431 is provided in the through hole 522 to penetrate, so that the abutting section of the fixed connecting pipe 5 52 ring is engaged on the outer side of the second joint section 431, and the other convex block 51 of the fixed joint 5 is fitted toward the clamping groove 401 between the third joint section 432 and the fourth joint section 421. A groove 521 provided above the abutting section 52 of the other fixed connecting pipe 5 provides the bottom end of the third engaging section 432 to engage, and the through hole 522 inside the abutting section 52 of the other fixed connecting pipe 5 , provide the fourth joint section 421 to pass through, so that the abutment section 52 of the fixed connecting pipe 5 is ring-jointed on the outside of the fourth joint section 421 .

Please refer to Fig. 5, 6 and Fig. 7 again, between the connection between the ball hitting part 41 and the grip part 42 of the joint part 40 of the hollow rod body 4 of the present invention, or between the ball hitting part 41 and the oblique Between the connection between the section 43 and the oblique section 43 and the holding section 42, the connection position of the joint 40 of the hollow rod 4 is made more stable by the fixed connecting pipe 5, and the ball hitting section 41 is increased. between the engagement with the grip portion 42, or between the hitting portion 41 and the slant portion 43 and the connection area between the slant portion 43 and the grip portion 42, so as to strengthen the strength of the bat 3 The structure of the hollow bat body 4 makes the design effect of the bat 3 undiminished, improves the overall strength and high design of the bat 3, effectively alleviates the numbness of the bat 3 when playing, improves the feeling of hitting, and makes the bat 3 feel better. The durability of this bat 3 is higher.

Please refer to Fig. 5, 6 and Fig. 7 again, in one or two joint parts 40 embodiments of the hollow rod body 4 of the present invention, the convex block 51 of the fixed connecting pipe 5, and the joint part 40 The contacting part of the clamping groove 401 matches with the shape of the joint part 40 to be bent and formed to form a straight tapered shape, which is not limited thereto.

In other possible embodiments, as shown in Figures 11 to 14, in the second embodiment of the hollow rod body and the two joint parts of the present invention, the fixed connecting pipe 5a is roughly the same as that shown in Figures 5, 6 and 7 The fixed connecting pipe 5 is substantially the same, except that the convex block 51a of the fixed connecting pipe 5a is in contact with the clamping groove 401 of the joint part 40 to match the shape of the joint part 40 to be chamfered internally, and form a cone. Wherein the first joint section 411 of the ball striking part 41 and/or the third joint section 432 of the oblique section 43 are chamfered inside, when the clamping groove 401 of the joint part 40 forms a tapered , so that the convex block 51a is inserted into the clamping groove 401 to form a connection. Moreover, the assembly method of the convex block 51a, the abutting section 52a and the joint portion 40 of the hollow rod 4 of the fixed connection 5a is the same as that of the fixed connection 5 and the hollow rod shown in FIGS. 5, 6 and 7. The assembly method of the joint portion 40 of the rod body 4 is the same, and will not be repeated here. The abutment section 52a of the fixed connecting pipe 5a is also ring-jointed on the outside of the second joint section 431 and/or the fourth joint section 431. outside of segment 421.

In other possible embodiments, as shown in Fig. 15 to Fig. 18, in the third embodiment of the hollow rod and two or one joint parts of the present invention, the fixed connecting pipe 5b is roughly the same as Fig. 5, 6 and Fig. 7 The fixed connecting pipe 5 shown is roughly the same, except that the convex block 51b of the fixed connecting pipe 5b, which is in contact with the clamping groove 401 of the joint part 40, matches the joint part 40 as an internal small convex shape. shape to form a cone. Wherein the first engaging section 411 of the hitting portion 41 and/or the third engaging section 432 of the oblique section 43 is in the shape of a small convex shape inside, and is connected with the second engaging section 431 of the oblique section 43 And/or the fourth engaging segment 421 of the gripping portion 42 is assembled in a small concave shape, when the clamping groove 401 of the engaging portion 40 is tapered, the convex block 51b is inserted into the clamping groove 401 Formed Connection. In addition, the assembly method of the convex block 51b, the abutting section 52b and the joint portion 40 of the hollow rod 4 of the fixed connection 5b is the same as that of the fixed connection 5 and the hollow body shown in Figures 5, 6 and 7. The assembly method of the joint portion 40 of the rod body 4 is the same, and will not be repeated here. The abutment section 52b of the fixed connecting pipe 5b is also ring-jointed on the outside of the second joint section 431 and/or the fourth joint section 431. outside of segment 421.

Please refer to Fig. 5 to Fig. 7 and shown in Fig. 11, 15 again, the length of this fixed connecting pipe 5, 5a, 5b is 5.0mm ~ 30.0mm, this fixed connecting pipe 5, 5a, 5b this convex block 51, 51a, The length of 51b is 3.0mm-18.0mm. To further illustrate, the connection between the fixing pipes 5 , 5 a , 5 b and the connecting portion 40 is joint, but it is not limited to this embodiment. In other possible embodiments, the temperature of the boiling water is controlled at 50° C. to 95° C. by shrinking with boiling water, so that the convex blocks 51 , 51 a , 51 b reaching the fixing joints 5 , 5 a , 5 b can be connected with the The joining parts 40 are shrunk and embedded to form a tight connection, so that the connection structure of the bat 3 is more stable and reliable, so as to reduce the risk of the bat 3 breaking.

Please refer to Figures 5 to 7 and Figures 11 and 15, the convex inserts 51, 51a, 51b and the abutting sections 52, 52a, 52b of the fixed joint 5, 5a, 5b are integrated, and the fixed joint 5 , 5a, 5b, the outer surface of the abutting section 52, 52a, 52b is set as a concave-convex surface, or ring-shaped lines, or laser engraving, or irregular shape, but not limited thereto, and the fixed connecting pipe 5 can be added , 5a, and 5b can better show the unique style of the bat 3 , and are different from the bats on the market today, which increases the high quality of the bat 3 .

Please refer to Fig. 5 to Fig. 7 and Fig. 11, 15, the material of the fixed joints 5, 5a, 5b is selected from the resin material with a specific gravity of 0.7-1.9, the resin material is synthetic resin (celluloid), or ABS thermoplastic Type polymer material (acrylonitrile butadiene styrene), or choose PC polycarbonate (polycarbonate), or choose high-strength rubber material containing PUR polyurethane (polyurethane), but not limited thereto.

Please refer to Figures 5 to 7 and Figures 11 and 15, the ball hitting part 41, the oblique section 43 and the grip part 42 of the hollow rod 4 are made of the same material, or they are made of different materials. Combination, the material of the hitting portion 41, the oblique portion 43 and the grip portion 42 is selected from light metals with a specific gravity of 1.5 to 2.9, the light metals are aluminum alloys or magnesium alloys, or carbon fiber reinforced plastics containing CFRP (carbon fiber reinforced plastics) are used. plastics) or GFRP fiber reinforced plastics (glass fiber reinforced plastics) made of FRP fiber reinforced plastics (fiber reinforced plastics), or choose high-strength plastic materials containing PC polycarbonate (polycarbonate) with a strength of 5kgf/ ^mm2 , or The strength is 3kgf/ ^mm2 made of engineering plastics represented by PC polycarbonate or super engineering plastics represented by PEEK polymer material (polyether ether ketone) -9kgf/ ^mm2 of high-strength plastic.

In the present invention, the hollow rod body 4 is provided with the fixing joints 5, 5a, 5b to provide a more stable connection position between the engaging parts 40 of the hollow rod body 4, and the present invention can overcome the existing composite type The segmented structure of the bat 2, after hitting the ball, the joint position between the various parts of the composite bat 2 is loosened by the impact force, making the joint position between the various parts of the composite bat 2 unstable The problem.

Claims (11)

1. A bat combination structure, characterized in that the bat has a hollow body with an inner space, and the hollow body includes at least one engaging portion engaged with each other, and a clamping groove is formed between the engaging portions of the engaging portion; and At least one fixed connecting pipe, the fixed connecting pipe includes a convex block fitting in the clamping groove towards the joint part, and an abutting part away from one end of the convex block and connected to the joint part. 2. The bat combination structure according to claim 1, characterized in that there is only one joining portion of the hollow stick body, the hollow stick body is provided with a ball-hitting portion, and a first joint section is arranged below the ball-hitting portion , a head cover portion is arranged above the hitting portion; and a grip portion, a fourth engaging section is arranged above the gripping portion, a stopper portion is arranged below the gripping portion, and the fourth engaging portion faces the hitting portion The first engaging section is connected to an oblique section having an outer diameter greater than that of the grip portion, and the oblique section has a second engaging section that engages with the first engaging section of the ball-hitting portion, and A third joint section integrally connected with the fourth joint section of the grip part, the first joint section of the ball hitting part is sleeved on the outside of the second joint section of the oblique section, so that the first joint section The clamping groove is formed between the joint section and the second joint section; wherein, there is one fixed connection pipe, and the convex block of the fixed connection pipe faces the clamping between the first joint section and the second joint section The abutting section of the fixed connecting pipe is provided with a groove above which the bottom end of the first engaging section engages. The abutting section of the fixed connecting pipe has a through hole communicating with the internal space inside. The hole provides the second joining section to pass through, so that the ring of the abutting section of the fixed connecting pipe is engaged on the outside of the second joining section. 3. The bat combination structure according to claim 1, characterized in that there is only one joining portion of the hollow stick body, a hitting portion is provided on the hollow stick body, and a first joining section is arranged below the hitting portion , the first engaging section is connected to an oblique section having an outer diameter smaller than the outer diameter of the ball-hitting part, the oblique section has a second engaging section integrally connected with the first engaging section of the ball-hitting part, and a A third joint segment far away from the second joint segment and having an outer diameter smaller than the outer diameter of the second joint segment, a head cover portion is arranged above the ball striking portion; The third joint section of the slanted section engages with the fourth joint section, and the third joint section of the oblique section is sleeved on the outside of the fourth joint section of the gripping section, so that the third joint section and the The clamping groove is formed between the fourth joint sections, and a stopper part is provided under the gripping part; wherein, there is one fixed connection piece, and the convex block of the fixed connection piece is engaged with the fourth joint piece toward the third joint section. The clamping groove between the sections is fitted, and a groove is provided above the abutting section of the fixed connecting pipe to provide the bottom end of the third engaging section to engage. A through hole in the space, the through hole provides the fourth joint segment to penetrate, so that the abutment segment ring of the fixed connecting pipe is engaged on the outside of the fourth joint segment. 4. The ball-and-bat combination structure according to claim 1, characterized in that, the hollow rod body forms two joints that engage with each other, and the joints of each joint are respectively formed between the joints. Each of the clamping grooves is respectively connected with the fixing connecting pipe. 5. The bat combination structure according to claim 4, wherein the hollow rod body is provided with a ball-hitting portion, a slanted portion and a grip portion, and a first engaging portion is arranged under the ball-hitting portion, A head cover is arranged above the ball-hitting part, and the slanted section has a second joint section engaged with the first joint section of the ball-hitting part, and the outer diameter of the second joint section of the slanted section is smaller than the The outer diameter of the first joint segment of the ball-hitting part, and a third joint segment with an outer diameter smaller than the second joint segment away from one end of the second joint segment, and a connection with the oblique segment is arranged above the grip The third joint section engages with the fourth joint section, the outer diameter of the fourth joint section of the grip part is smaller than the outer diameter of the third joint section of the oblique section, and an abutment is arranged under the grip part. The stopper, the first engagement section of the ball-hitting section is sleeved on the outside of the second engagement section of the oblique section, so that the clamping groove is formed between the first engagement section and the second engagement section, and The third engaging section of the oblique section is sleeved on the outside of the fourth engaging section of the gripping portion, so that the clamping groove is formed between the third engaging section and the fourth engaging section; wherein, the fixing There are two connecting pipes, the convex block of one of the fixed connecting pipes is fitted toward the clamping groove between the first joint section and the second joint section, and a provision is arranged above the abutting section of the fixed joint The bottom end of the first joining section engages with the groove, and the inside of the abutting section of the fixed connecting pipe has a through hole communicating with the internal space, and the second connecting section is provided in the through hole, so that the fixed connecting pipe The ring of the abutting segment is engaged on the outside of the second engaging segment, and the other convex block of the fixing pipe fits toward the clamping groove between the third engaging segment and the fourth engaging segment, and the other A groove is provided above the abutting section of one of the fixed connecting pipes to provide the bottom end of the third engaging section to engage, and the through hole inside the abutting section of the other fixed connecting pipe provides the penetration of the fourth engaging section, The abutting section of the fixed connecting pipe is annularly engaged on the outer side of the fourth engaging section. 6. The ball-and-bat joint structure according to any one of claims 1 to 5, characterized in that, the connection between the fixed connecting pipe and the joining portion is jointing, or heat shrinking with boiling water, and the temperature of the boiling water is controlled at 50° C. to 95° C. ℃ to make it shrink and embed. 7. The ball-and-bat joint structure according to any one of claims 1 to 5, characterized in that, the length of the fixed joint is 5.0 mm to 30.0 mm, and the length of the convex block of the fixed joint is 3.0 mm to 3.0 mm. 18.0mm. 8. The ball-and-bat coupling structure according to any one of claims 1 to 5, characterized in that, the convex block and the abutting section of the fixed socket are integrated, and the outer surface of the abutting section of the fixed socket The surface is concave-convex, or ring-shaped, or laser engraved, or irregularly shaped. 9. The ball-and-bat coupling structure according to any one of claims 1 to 5, characterized in that, the part of the convex block of the fixed socket that is in contact with the clamping groove of the joint part matches the joint part to be Bending molding, or internal chamfering molding, or internal small convex molding shape to form a straight cone, or a cone, or a triangular shape. 10. The ball-and-bat joint structure according to any one of claims 1 to 5, characterized in that, the material of the fixed joint is selected from resin materials with a specific gravity of 0.7 to 1.9, and the resin material is synthetic resin, or ABS heat is selected. Plastic polymer material, or choose PC polycarbonate, or choose high-strength rubber material containing PUR polyurethane. 11. The bat combination structure according to claim 2, 3 or 5, characterized in that, the hitting part, the oblique part and the grip part of the hollow rod body are made of the same material, or a combination of the three It is a combination of different materials, wherein the materials of the hitting part, the oblique part and the grip part are selected from light metals with a specific gravity of 1.5 to 2.9, the light metals are aluminum alloys or magnesium alloys, or carbon fiber reinforced plastics containing CFRP or GFRP glass are selected FRP fiber reinforced plastics made of fiber reinforced plastics, or high-strength plastic materials with a strength of 5kgf/ ^mm2 containing PC polycarbonate, or engineering plastics represented by PC polycarbonate, or PEEK polymer materials It is a high-strength plastic made of super engineering plastics with a strength of 3kgf/mm ² -9kgf/mm ² .