Badminton head

Abstract

The invention discloses a shuttlecock head, and relates to the technical field of sports goods, an inserting part of the shuttlecock head is integrally formed through injection molding, one end of the inserting part is provided with a plurality of inserting pipes, and the number of the inserting pipes is 3-17; the sizes and the shapes of the inserting pipes are consistent; the inserting pipes are obliquely and uniformly arranged on the peripheral side of the axis of the inserting part in a circular truncated cone shape; an inserting cavity for inserting the feather rod is formed in each inserting pipe; the inserting pipe comprises an open end and a connecting end; the open end is far away from the striking part; a mounting end is coaxially arranged at the other end of the inserting part; the striking part comprises a ball head part and a connecting part, the ball head part is of a hemispherical or segment-shaped structure, the connecting part is of a cylindrical structure, and the connecting part is coaxially and fixedly connected with the mounting end; the distances between the insertion pipes and the plane of the ball head part are the same; the included angles between the inserting pipes and the central axis of the ball head part are the same and are 15-30 degrees; the included angle between every two adjacent inserting pipes is 1-18 degrees, so that the consistency of the feather pieces inserted into the shuttlecock head is improved, and the consistency of the shuttlecock is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of sports goods, in particular to a badminton head. Background Art

[0002] The head of a badminton is the most important part of a badminton. Currently, most people insert the feather shaft of a feather piece directly into the head of a badminton. They also need to drill a hole diagonally from the plane of the head of the badminton to the head, and then insert the feather shaft of the feather piece into the drilled hole. The hole drilled in the head is a round hole, while the hair shaft of a natural feather piece is close to a square shape. Moreover, the natural feather shaft is a keratinized protein hollow tube with a certain elasticity and filled with flocculent sponge. Moreover, the insertion end of the feather shaft is the thickest part of the entire feather piece. When the square hollow tube is inserted into the round hole on the head, it is easy to cause a certain amount of deformation of the square hollow tube, which leads to poor consistency of the inserted feather piece. Summary of the invention

[0003] The purpose of the present invention is to provide a badminton head to solve the problems existing in the above-mentioned prior art, improve the consistency of feather pieces inserted into the badminton head, and ensure the consistency of the badminton.

[0004] To achieve the above-mentioned purpose, the present invention provides the following solutions: The present invention provides a badminton head, comprising an inserting portion and a striking portion;

[0005] The plug-in part is integrally formed by injection molding, and one end of the plug-in part is provided with a plurality of plug-in tubes, the number of which is 3 to 17; the sizes and shapes of the plug-in tubes are consistent; the plug-in tubes are arranged evenly and obliquely on the outer peripheral side of the axis of the plug-in part in a truncated cone shape; a plug-in cavity for inserting a feather rod is provided in each plug-in tube; the plug-in tube includes an open end and a connecting end, the open end is away from the striking part; the other end of the plug-in part is coaxially provided with a mounting end;

[0006] The striking part includes a ball head and a connecting part, the ball head is in a hemispherical or spherical shape, the connecting part is in a cylindrical structure, and the connecting part is coaxially fixedly connected with the mounting end;

[0007] The distances between the plug-in tubes and the planes of the ball heads are the same;

[0008] The included angles between the central axis of each plug-in tube and the ball head are the same, and the included angle is 15 to 30 degrees;

[0009] The included angle between two adjacent plug-in tubes is 1 to 18 degrees.

[0010] Preferably, a connecting piece is provided between each of the plug-in tubes and the mounting end of the plug-in portion; the plug-in tubes are located on one side of the connecting piece and are arranged around the connecting piece, the opening end of the plug-in tube is away from the connecting piece, and the connecting end of the plug-in tube is connected to the connecting piece;

[0011] The mounting end is located on the other side of the connecting piece, and a first cylinder coaxial with the mounting end is provided on the mounting end; a mounting groove coaxial with the first cylinder is provided inwardly on the end surface of the connecting portion; the size of the first cylinder matches the size of the mounting groove, and the first cylinder is inserted into the mounting groove and fixedly connected.

[0012] Preferably, the connecting end of each of the plug-in tubes is connected to the connecting piece via a connecting rod; the plug-in tube and the connecting rod together constitute a plug-in rod, and a first reinforcing rib is connected between two adjacent plug-in rods.

[0013] Preferably, the plug-in portion is integrally formed, partial structures of each plug-in tube are embedded in the connecting portion, an accommodating cavity is opened inward along the axis of the connecting portion, and partial structures of the mounting end are embedded in the accommodating cavity. The size of the accommodating cavity matches the size of the partial structure of the mounting end embedded therein, and the accommodating cavity is fixedly connected.

[0014] Preferably, the mounting end comprises a first cylinder and a second cylinder coaxial therewith, the diameter of the second cylinder is larger than the diameter of the first cylinder, an annular sheet is arranged between the first cylinder and the second cylinder, and the plug-in tube is arranged in a truncated cone shape obliquely and uniformly on the periphery of the second cylinder or the outer periphery of the annular sheet; a mounting groove coaxial with the first cylinder is provided inwardly on the end surface of the connecting portion, the size of the first cylinder matches the size of the mounting groove, and the first cylinder is plugged into the mounting groove and fixedly connected;

[0015] The connecting part of the striking part includes a first connecting part and a second connecting part, the first connecting part is connected to the ball head part, the second connecting part is located at a position of the first connecting part away from the ball head part, the outer diameter of the second connecting part is smaller than the outer diameter of the first connecting part, the outer diameter of the second connecting part matches the inner diameter of the second cylinder, and is inserted into the second cylinder and fixedly connected.

[0016] Preferably, a plurality of undercuts extending outward are provided on the outer side of the first cylinder near the position of the ball head, the connecting portion is a hollow cylinder, and the size of the hollow core of the hollow cylinder matches the size of the first cylinder; an annular cutout is provided on the inner wall of the connecting portion near the ball head, and each of the undercuts is buckled into the annular cutout; the bottom plate of the first cylinder is located at the bottom of the first cylinder, and the bottom plate is directly fitted with the end face of the ball head; the plug-in portion and the striking portion are firmly connected without the action of glue.

[0017] Preferably, the hollow cylinder is a hollow structure.

[0018] Preferably, the depth of the plug-in cavity of the plug-in tube is 2 to 20 mm.

[0019] Preferably, a first center hole is formed through the axis of the bottom plate of the first cylinder along its axial direction, and a second center hole is formed through the axis of the striking portion along its axial direction, and the second center hole is connected to the first center hole.

[0020] Preferably, the material of the ball head includes but is not limited to natural cork, synthetic cork and foam material.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] 1. The plug-in part is one-piece injection molded, with multiple products in one mold, which fully reduces material cost and processing cost;

[0023] 2. The feather rod of the badminton is inserted into the insertion cavity of the plug-in tube. The spacing, size and angle between the plug-in tube and the central axis of the ball head are consistent to ensure the consistency of the entire badminton;

[0024] 3. The injection-molded plug-in cavity is smooth, and the cross-sectional shape of the plug-in cavity matches the shape of the inserted feather rod. When the feather rod is inserted, it is not easy to cause deformation of the feather rod, thereby ensuring the consistency of the inserted feather pieces of the badminton;

[0025] 4. The injection molded parts are hollowed out to reduce the weight of the injection molded parts to ensure the overall weight of the ball head, and the first reinforcement rib is used to ensure strength;

[0026] 5. Only the head of the badminton ball head is made of solid elastic material, which reduces the amount of material used to ensure the elastic performance of the ball head, thereby reducing the weight of the ball head and reducing costs;

[0027] 5.1. Choose natural cork as the elastic material. Natural cork is the elastic material that best meets the standards for badminton. Of course, the cost is also very high. Only using natural cork on the ball head reduces the cost of cork.

[0028] 5.2. The elastic material is synthetic cork. Synthetic cork is made by mixing glue and natural cork chips and curing them. The weight is too heavy, which makes the badminton head overweight. Only the synthetic cork is used in the hitting part of the head, which greatly reduces the proportion of synthetic cork materials, so that the weight of the head can be controlled within the range suitable for badminton sports.

[0029] 5.3. The elastic material is made of foam material. The density of the foam material of the ball head can be foamed according to the elasticity and gram weight of the ball head to ensure that the elasticity and gram weight of the badminton ball head meet the requirements of badminton.

[0030] 6. The angle between the plug-in tube and the central axis of the ball head is 15 to 30 degrees. The angle between the plug-in tube and the central axis of the ball head determines the taper of the entire badminton. The larger the angle, the greater the taper, and the larger the caliber of the badminton made of multiple feathers with the same bow, and vice versa; the caliber of the badminton is an important determining factor in the distance of the landing point of the badminton during flight. The larger the caliber, the greater the wind resistance and the closer the landing point;

[0031] 7. By providing the mounting groove, the first cylinder and its bottom plate, the contact surface between the plug-in part and the striking part is increased. The bottom plate can bear the force from the striking part. At the same time, the reaction force given by the plug-in part to the striking part is also mainly transmitted through the bottom plate, so that the pressure generated during the striking process is reduced. Moreover, the bottom plate can increase the bonding surface area between the plug-in part and the striking part by adding glue, thereby improving the firmness between the plug-in part and the striking part.

[0032] 8. Part of the structure of the plug-in tube is embedded in the connecting part of the ball head, and the two are sleeved together; and the bottom plate of the first cylinder goes deep into the ball head, so that the center of gravity of the badminton sinks toward the ball head, and then the center of gravity of the entire badminton is closer to the ball head, so as to increase the turning speed of the badminton after being hit, which is difficult to achieve with existing badminton.

[0033] 9. The bottom plate of the first cylinder is in direct contact with the ball head and can directly bear the impact force from the ball head.

[0034] 10. A plurality of undercuts extending outward are provided on the outer side of the first cylinder near the position of the ball head. The connecting part is a hollow cylinder. An annular cutout is provided on the inner wall of the connecting part. Each undercut is buckled into the annular cutout, thereby firmly connecting the first cylinder to the connecting part, so as to ensure a firm connection between the plug-in part and the striking part without the action of glue.

[0035] 11. The axis of the bottom plate of the first cylinder is provided with a first center hole along its axial direction, and the axis of the striking part is provided with a second center hole along its axial direction. The second center hole is connected with the first center hole. During the flight of the badminton, airflow can pass through the first center hole and the second center hole, thereby reducing wind resistance. The size of the first center hole and the second center hole can adjust the size of wind resistance. A whistle can also be embedded in the first center hole or the second center hole, so that the badminton can make a sound during the flight, thereby increasing the fun of badminton. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 A longitudinal cross-sectional view of an embodiment of a badminton head with a connecting rod disclosed in the present invention;

[0038] Figure 2 A longitudinal cross-sectional view of an embodiment of a badminton head having a second cylinder disclosed in the present invention;

[0039] Figure 3 A top view of an embodiment of the plug-in portion disclosed in the present invention having a connecting piece;

[0040] Figure 4 It is a schematic diagram of another embodiment of the plug-in part disclosed in the present invention, wherein: Figure 4 a is a front view of the plug-in part; Figure 4 b is a side view of the plug-in portion; Figure 4 c is a top view of the plug-in portion; Figure 4 d is an axonometric view of the plug-in part;

[0041] Figure 5 For Figure 4 A schematic diagram of a striking portion matching a disclosed plug-in portion, wherein: Figure 5 a is a front cross-sectional view of the striking part; Figure 5 b is a side view of the striking part; Figure 5 c is a top view of the striking part; Figure 5 d is the axonometric view of the striking part;

[0042] Figure 6 for Figure 4 The open plug-in part and Figure 5 A schematic diagram of the disclosed striking parts after they are connected;

[0043] Figure 7It is a schematic diagram of an embodiment of the striking portion having an annular cutout disclosed in the present invention;

[0044] Among them, 1-plug-in tube, 2-connecting rod, 3-connecting plate, 4-second cylinder, 5-first cylinder, 6-bottom plate, 7-connecting part, 8-ball head, 9-installing groove, 10-first reinforcing rib, 11-second reinforcing rib, 12-undercut, 13-annular incision. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The purpose of the present invention is to provide a badminton head to solve the problems existing in the above-mentioned prior art, improve the consistency of feather pieces inserted into the badminton head, and ensure the consistency of the badminton.

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] like Figures 1 to 7As shown, the present invention provides a badminton head, including a plug-in part and a striking part; the plug-in part is integrally formed by injection molding, and one mold has multiple products, which fully reduces the material cost and processing cost, and one end of the plug-in part is provided with a plurality of plug-in tubes 1, and the number of the plug-in tubes 1 is 3 to 17; the size and shape of each plug-in tube 1 are consistent; each plug-in tube 1 is arranged obliquely and evenly on the outer peripheral side of the axis of the plug-in part in a truncated cone shape; each plug-in tube 1 is provided with a plug-in cavity for inserting a feather rod, and the depth of the plug-in cavity of the plug-in tube 1 is preferably 2 to 20 mm. The injection-molded plug-in cavity is smooth, and the cross-sectional shape of the plug-in cavity is adapted to the shape of the inserted feather rod. When the feather rod is inserted, it is not easy to cause deformation of the feather rod, thereby ensuring the consistency of the inserted feather pieces of the badminton, and the plug-in cavity and the feather rod are preferably firmly connected by glue. The plug-in tube 1 includes an open end and a connecting end, the open end is far away from the striking part; the other end of the plug-in part is coaxially provided with a mounting end; the striking part includes a ball head 8 and a connecting part 7, the ball head 8 is a hemispherical or ball-segment structure, the connecting part 7 is a cylindrical structure, and the connecting part 7 is coaxially fixedly connected with the mounting end; the distance between the planes of each plug-in tube 1 and the ball head 8 is the same; the angle between the central axis of each plug-in tube 1 and the ball head 8 is the same, and the angle is 15 to 30 degrees. The angle between the plug-in tube 1 and the central axis of the ball head 8 determines the taper of the entire badminton. The larger the angle, the larger the taper, and the larger the caliber of the badminton made of multiple feather pieces with the same bow, and vice versa; the landing point of the badminton is the distance between the firing point and the landing point on the ground after the badminton is hit and flies a certain distance before falling to the ground; the caliber of the badminton is an important factor in determining the distance of the landing point Factors, the larger the caliber, the greater the wind resistance, and the closer the landing point; the angle between two adjacent plug-in tubes 1 is 1 to 18 degrees; the feather rod of the badminton in the present invention is plugged into the plug-in cavity of the plug-in tube 1, and the spacing, size, and angle between the plug-in tube 1 and the central axis of the ball head are all consistent. On the whole, the present invention connects the striking part and the feather rods through the plug-in part, and the plug-in part is injection molded into one piece, and the arrangement structure of each plug-in tube 1 is optimized to ensure the consistency of the distribution of each plug-in tube 1, and then the feather rods of the feather pieces are correspondingly passed through the insertion ports, plugged into the plug-in cavities and firmly connected, which improves the consistency of the feather pieces inserted into the badminton head, thereby ensuring the consistency of the produced badminton, and solves the problem of directly opening a hole in the badminton head in the prior art, inserting the feather rod into the hole on the badminton head, resulting in deformation of the feather rod and poor consistency.

[0049] In a specific embodiment, Figure 2As shown, a connecting piece 3 is provided between each plug-in tube 1 and the mounting end of the plug-in part; the plug-in tube 1 is located on one side of the connecting piece 3 and is arranged around the connecting piece 3, the open end of the plug-in tube 1 is away from the connecting piece 3, and the connecting end of the plug-in tube 1 is connected to the connecting piece 3; the mounting end is located on the other side of the connecting piece 3, and a first cylinder 5 coaxial therewith is provided on the mounting end; a mounting groove 9 coaxial with the first cylinder 5 is provided inwardly on the end surface of the connecting part 7, and the mounting groove 9 is coaxially arranged with the connecting part 7; the size of the first cylinder 5 matches the size of the mounting groove 9, and the first cylinder 5 is plugged into the mounting groove 9 and fixedly connected.

[0050] In this embodiment, as preferred, Figure 1 As shown, the connecting end of each plug-in tube 1 is connected to the connecting piece 3 through a connecting rod 2; the plug-in tube 1 and the connecting rod 2 together form a plug-in rod, and a first reinforcing rib 10 is connected between two adjacent plug-in rods. The injection molded part is hollowed out to reduce the gram weight of the injection molded part to ensure the overall gram weight of the ball head, and the first reinforcing rib 10 is used to ensure strength.

[0051] In this embodiment, as another preferred embodiment, Figure 3 As shown, the connecting end of each plug-in tube 1 is directly connected to the connecting piece 3 , so a first reinforcing rib 10 is connected between two adjacent plug-in tubes 1 , and a second reinforcing rib 11 is connected between the plug-in tube 1 and the connecting piece 3 .

[0052] In a specific embodiment, Figure 4 , Figure 5 and Figure 6 As shown, the plug-in part is integrally formed, and the partial structures of each plug-in tube 1 are embedded in the connecting part 7. A receiving cavity is opened inward along the axis of the connecting part 7, and the partial structure of the mounting end is embedded in the receiving cavity. The size of the receiving cavity matches the size of the partial structure of the mounting end embedded therein, and is fixedly connected. The partial structure of the plug-in tube 1 is completely embedded in the connecting part 7 of the ball head 8, and the two are sleeved together. In addition, in the embodiment in which the bottom plate 6 of the first cylinder 5 penetrates into the inside of the ball head, the center of gravity of the badminton sinks toward the ball head 8, and then the center of gravity of the entire badminton is closer to the ball head, so as to increase the turning speed of the badminton after being hit, which is difficult to achieve with the existing badminton.

[0053] In a specific embodiment, the mounting end includes a first cylinder 5 and a second cylinder 4 coaxial therewith, the diameter of the second cylinder 4 is larger than the diameter of the first cylinder 5, there is an annular sheet between the first cylinder 5 and the second cylinder 4, and the plug-in tube 1 is arranged in a truncated cone shape obliquely and evenly around the second cylinder 4 or the outer periphery of the annular sheet; the end surface of the connecting portion 7 is provided with a mounting groove 9 coaxial with the first cylinder 5 inwardly, the size of the first cylinder 5 matches the size of the mounting groove 9, the first cylinder 5 is plugged into the mounting groove 9 and fixedly connected; the connecting portion 7 of the striking portion includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the ball head portion, the second connecting portion is located at a position of the first connecting portion away from the ball head portion 8, the outer diameter of the second connecting portion is smaller than the outer diameter of the first connecting portion, the outer diameter of the second connecting portion matches the inner diameter of the second cylinder 4, and is plugged into the second cylinder 4 and fixedly connected.

[0054] In a specific embodiment, Figure 7 As shown, a plurality of undercuts 12 extending outward are provided on the outer side of the first cylinder 5 near the ball head 8, the connecting portion 7 is a hollow cylinder, the size of the hollow core of the hollow cylinder matches the size of the first cylinder 5, and as another preferred embodiment, the hollow cylinder is a hollow structure; an annular cutout 13 is provided on the inner wall of the connecting portion 7 near the ball head 8, and each undercut 12 is buckled into the annular cutout 13, so that the first cylinder 5 and the connecting portion 7 are firmly connected; the bottom plate 6 of the first cylinder 5 is located at the bottom of the first cylinder 5, and the bottom plate 6 is directly fitted with the end face of the ball head 8; the plug-in portion and the striking portion are firmly connected without the action of glue. Among them, by providing the mounting groove 9, the first cylinder 5 and its bottom plate 6, the contact surface between the plug-in part and the striking part is increased, and the bottom plate 6 can bear the force from the striking part. At the same time, the reaction force of the plug-in part on the striking part is also mainly transmitted through the bottom plate 6, so that the pressure generated during the striking process is reduced, and the bottom plate 6 can increase the bonding surface area between the plug-in part and the striking part by adding glue between them, thereby improving the firmness between the plug-in part and the striking part. The bottom plate 6 of the first cylinder 5 is in direct contact with the ball head 8, and can directly bear the impact force from the ball head 8.

[0055] In a specific embodiment, the axis of the bottom plate 6 of the first cylinder 5 is penetrated along its axial direction to form a first central hole, and the axis of the striking part is penetrated along its axial direction to form a second central hole, and the second central hole is connected with the first central hole. During the flight of the badminton, airflow can pass through the first central hole and the second central hole, thereby reducing wind resistance, and the size of the first central hole and the second central hole can adjust the size of wind resistance; a whistle can also be embedded in the first central hole or the second central hole, so that the badminton can make a sound during the flight, thereby increasing the fun of badminton.

[0056] In a specific embodiment, the material of the ball head 8 includes but is not limited to natural cork, synthetic cork and foaming material. Only the ball head 8 of the badminton ball head adopts solid elastic material, which reduces the amount of material used to ensure the elastic performance of the ball head, so as to reduce the weight of the ball head and reduce the cost; wherein, in one embodiment, the elastic material selects natural cork, which is the elastic material that best meets the standard for badminton use, and of course, the cost is also particularly high. Only natural cork is used in the ball head 8, which reduces the cost of cork use; in another embodiment, the elastic material adopts synthetic cork, which is made by mixing glue with natural cork chips and curing, and the weight is heavy, which leads to the overweight of the badminton ball head. Only the ball head 8 of the striking part uses synthetic cork, which greatly reduces the proportion of synthetic cork materials, and thus the weight of the ball head can be controlled within the range that meets the badminton sport; in another embodiment, the elastic material adopts foaming material, and the density of the foaming material of the ball head 8 can be foamed according to the elasticity and weight of the ball head 8, so as to ensure that the elasticity and weight of the badminton ball head meet the requirements of badminton sport.

[0057] In a specific embodiment, the ball head portion 8 of the striking part is made of transparent elastic material, and further, the connecting portion 7 of the striking part is also made of transparent material; a second center hole is opened along the axial direction of the axis of the striking part, and a light-emitting diode is installed at the second center hole. The light-emitting diode can emit light to the outside through the ball head portion 8 and the connecting portion 7 of the striking part.

[0058] In a specific embodiment, the ball head 8 of the striking portion is spray-painted or spray-coated with a PU foam thin layer to protect the ball head from being easily damaged when repeatedly struck.

[0059] In a specific embodiment, the outside of the striking part is covered with a layer of PU leather and spray-painted, or a PU foam thin layer is sprayed to protect the striking part from being damaged after repeated striking.

[0060] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0061] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0062] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A badminton head, characterized in that: It includes a plug-in part and a striking part; The plug-in part is integrally formed by injection molding, and one end of the plug-in part is provided with a plurality of plug-in tubes, the number of which is 3 to 17; the sizes and shapes of the plug-in tubes are consistent; the plug-in tubes are arranged evenly and obliquely on the outer peripheral side of the axis of the plug-in part in a truncated cone shape; a plug-in cavity for inserting a feather rod is provided in each plug-in tube; the plug-in tube includes an open end and a connecting end, the open end is away from the striking part; the other end of the plug-in part is coaxially provided with a mounting end; The striking part includes a ball head and a connecting part, the ball head is in a hemispherical or spherical shape, the connecting part is in a cylindrical structure, and the connecting part is coaxially fixedly connected with the mounting end; The distances between the plug-in tubes and the planes of the ball heads are the same; The included angles between the central axis of each plug-in tube and the ball head are the same, and the included angle is 15 to 30 degrees; The included angle between two adjacent plug-in tubes is 1 to 18 degrees.

2. The badminton head according to claim 1, characterized in that: A connecting piece is provided between each of the plug-in tubes and the mounting end of the plug-in part; the plug-in tubes are located on one side of the connecting piece and arranged around the connecting piece, the opening end of the plug-in tube is away from the connecting piece, and the connecting end of the plug-in tube is connected to the connecting piece; The mounting end is located on the other side of the connecting piece, and a first cylinder coaxial with the mounting end is provided on the mounting end; a mounting groove coaxial with the first cylinder is provided inwardly on the end surface of the connecting portion; the size of the first cylinder matches the size of the mounting groove, and the first cylinder is inserted into the mounting groove and fixedly connected.

3. The badminton head according to claim 2, characterized in that: The connecting end of each plug-in tube is connected to the connecting piece via a connecting rod; the plug-in tube and the connecting rod together form a plug-in rod, and a first reinforcing rib is connected between two adjacent plug-in rods.

4. The badminton head according to claim 1, characterized in that: The plug-in portion is integrally formed, and partial structures of each plug-in tube are embedded in the connecting portion. An accommodating cavity is opened inward along the axis of the connecting portion, and partial structures of the mounting end are embedded in the accommodating cavity. The size of the accommodating cavity matches the size of the partial structure of the mounting end embedded therein, and is fixedly connected.

5. The badminton head according to claim 1, characterized in that: The mounting end includes a first cylinder and a second cylinder coaxial therewith, the diameter of the second cylinder is larger than the diameter of the first cylinder, an annular sheet is arranged between the first cylinder and the second cylinder, and the plug-in tube is arranged in a truncated cone shape obliquely and uniformly on the periphery of the second cylinder or the outer periphery of the annular sheet; the end surface of the connecting portion is provided with a mounting groove coaxial with the first cylinder inwardly, the size of the first cylinder matches the size of the mounting groove, and the first cylinder is plugged into the mounting groove and fixedly connected; The connecting part of the striking part includes a first connecting part and a second connecting part, the first connecting part is connected to the ball head part, the second connecting part is located at a position of the first connecting part away from the ball head part, the outer diameter of the second connecting part is smaller than the outer diameter of the first connecting part, the outer diameter of the second connecting part matches the inner diameter of the second cylinder, and is inserted into the second cylinder and fixedly connected.

6. The badminton head according to claim 2, 3 or 5, characterized in that: A plurality of undercuts extending outward are provided on the outer side of the first cylinder near the position of the ball head; the connecting portion is a hollow cylinder, and the size of the hollow core of the hollow cylinder matches the size of the first cylinder; an annular cutout is provided on the inner wall of the connecting portion near the ball head, and each of the undercuts is buckled into the annular cutout; the bottom plate of the first cylinder is located at the bottom of the first cylinder, and the bottom plate is directly fitted with the end face of the ball head; the plug-in portion and the striking portion are firmly connected without the action of glue.

7. The badminton head according to claim 6, characterized in that: The hollow cylinder is a hollow structure.

8. The badminton head according to claim 1, characterized in that: The depth of the insertion cavity of the insertion tube is 2 to 20 mm.

9. The badminton head according to claim 6, characterized in that: The axis of the bottom plate of the first cylinder is provided with a first center hole along its axial direction, and the axis of the striking part is provided with a second center hole along its axial direction, and the second center hole is connected with the first center hole.

10. The badminton head according to claim 1, characterized in that: The material of the ball head includes but is not limited to natural cork, synthetic cork and foam material.

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