CN214512585U

CN214512585U - Head device and tennis racket

Info

Publication number: CN214512585U
Application number: CN202120544987.9U
Authority: CN
Inventors: 马丽
Original assignee: Changsha Social Work College
Current assignee: Changsha Social Work College
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-10-29
Anticipated expiration: 2031-03-16

Abstract

The utility model belongs to the technical field of sports equipment, especially, relate to a clap head device and tennis racket. The head beating device comprises a head beating structure and an adjusting structure. The racket head structure comprises an outer frame, a net wire and an inner frame with elastic restoring force, wherein the ring surface of the outer frame is provided with a positioning groove for the inner frame to be arranged, the surfaces of the two sides of the inner frame are respectively arranged opposite to the groove wall gaps of the two sides of the positioning groove, and the side surface of the inner ring of the outer frame is provided with a through hole communicated with the positioning groove. The adjusting structure comprises an adjusting column connected with the outer frame, an adjusting hole communicated with the positioning groove is formed in the side face of the outer ring of the outer frame, and one end of the adjusting column penetrates through the adjusting hole in a sliding mode and is connected with the inner frame; the adjusting columns are at least two, and the other end of each adjusting column moves for a preset distance along the direction departing from the outer frame so as to increase the inner diameter of the inner frame and tension the net wires. The utility model discloses an internal diameter of inside casing increases along the moving direction of regulation post, and then makes each net twine obtain appropriate tensioning, reaches the purpose of adjusting net twine rate of tension.

Description

Head device and tennis racket

Technical Field

The utility model belongs to the technical field of sports equipment, especially, relate to a clap head device and tennis racket.

Background

Tennis is a ball game, and in recent years, tennis is rapidly developed and is increasingly popular in China, and particularly in universities, the number of tennis fans is almost the same as that of football and basketball. Tennis is usually played between two single players or two pairs of players who hit tennis balls with a tennis racket on a tennis court via a net. Tennis racket is generally composed of an oval head, a string and a racket rod, wherein the string is woven in the inner cavity of the head.

However, since the hitting force of tennis is large, the moving speed of tennis is fast, and the kinetic energy of tennis is large, so that the strings are repeatedly stretched and deformed due to vibration generated when the tennis is repeatedly hit, and after the tennis is hit for a long time, the strings in the whole racket head are loosened, so that the subsequent use of the tennis racket is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device of clapping head aims at solving the problem of how to adjust the rate of tension of net twine.

The utility model provides a device of clapping head, it includes:

the racket head structure comprises an outer frame, net wires and an inner frame with elastic restoring force, wherein the outer frame and the inner frame are both in annular structures, positioning grooves for the arrangement of the inner frame are formed in the annular surface of the outer frame, the extending paths of the positioning grooves are arranged in an annular shape and are matched with the inner frame, the surfaces of the two sides of the inner frame are arranged in a clearance mode relative to the groove walls of the two sides of the positioning grooves respectively, through holes communicated with the positioning grooves are formed in the side surface of the inner frame, the through holes are formed in a plurality of numbers, the through holes are arranged around the outer frame in a circumferential interval mode, the net wires are arranged in a plurality of numbers, and two ends of each net wire penetrate through the two through holes respectively and are connected with the side surface of the inner frame; and

the adjusting structure comprises an adjusting column connected with the outer frame, an adjusting hole communicated with the positioning groove is formed in the side face of the outer ring of the outer frame, and one end of the adjusting column penetrates through the adjusting hole in a sliding mode and is connected with the inner frame;

the adjusting columns are arranged at least two, the adjusting columns are sequentially arranged around the circumference of the outer frame at intervals, and the other ends of the adjusting columns move for a preset distance along the direction departing from the outer frame so as to increase the inner diameter of the inner frame and tension the net twines.

In one embodiment, the wall of the adjusting hole is provided with an internal thread, the adjusting column is provided with an external thread matched with the internal thread, and one end of the adjusting column is screwed in the adjusting hole and is rotatably connected with the inner frame.

In one embodiment, the inner frame is provided with a switching hole at a position corresponding to the adjusting column, one end of the adjusting column is provided with a clamping groove and penetrates through the switching hole, an extending path of the clamping groove is in an annular arrangement, and a limiting ring is arranged in the clamping groove.

In one embodiment, a threaded hole is formed in a position where the inner frame is connected with the adjusting column, the adjusting column is in threaded lock connection with the threaded hole, a positioning hole is formed in a position, corresponding to the adjusting hole, of a side face of the inner ring of the outer frame, the positioning hole is communicated with the positioning groove, two ends of the adjusting column are respectively rotatably arranged in the adjusting hole and the positioning hole, and the adjusting column rotates relative to the outer frame to drive the inner frame to move axially along the adjusting column.

In one embodiment, the adjusting structure further comprises an adjusting head, and two ends of the adjusting column are respectively connected with the adjusting head and the inner frame.

In one embodiment, the adjusting structure further includes a guide post, two ends of the guide post are respectively connected to two side groove walls of the positioning groove, a guide hole is formed in the inner frame corresponding to the guide post, and the guide post penetrates through the guide hole.

In one embodiment, the outer frame includes a bottom plate, a first outer ring and a second outer ring, the second outer ring is disposed in the first outer ring at intervals, the first outer ring and the second outer ring are both connected to the bottom plate and jointly form the positioning slot, and the adjusting hole is opened in the first outer ring.

Another object of the present invention is to provide a tennis racket, which includes the racket head device as described above, the tennis racket further includes a racket shaft for being held by a hand, and one end of the racket shaft is connected to the outer frame.

In one embodiment, the tennis racket further comprises a rubber sleeve, and the rubber sleeve is sleeved outside the free end of the racket rod.

The technical effects of the utility model are that: the inside casing moves along with the regulation post in the lump, adjusts the post and carries out the rigidity after moving to target in place, and the internal diameter of inside casing increases along the moving direction of adjusting the post simultaneously, and the internal diameter of the inside casing after the increase is fixed along with the fixed of adjusting the post in the lump simultaneously, can avoid the inside casing to take place the shrink, and then makes each net twine obtain appropriate tensioning, reaches the purpose of adjusting net twine rate of tension.

Drawings

Fig. 1 is a schematic structural view of a tennis racket according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the tennis racket of FIG. 1;

FIG. 3 is an exploded schematic view of the conditioning structure of FIG. 2;

fig. 4 is a schematic structural view of the inner frame of fig. 2.

The correspondence between reference numbers and names in the drawings is as follows:

100. a head-beating device; 10. a head structure; 11. an outer frame; 12. an inner frame; 13. a network cable; 20. an adjustment structure; 21. an adjustment column; 22. an adjustment head; 30. a racket shaft; 23. a limiting ring; 111. positioning a groove; 112. a through hole; 113. positioning holes; 114. an adjustment hole; 115. a first outer ring; 117. a second outer ring; 116. a base plate; 211. a limiting groove; 122. a threaded hole; 121. a guide hole; 123. switching the hole;

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "vertical", "parallel", "bottom", "angle", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship.

Referring to fig. 1 to 3, the present invention provides a head-beating device 100, which comprises a head-beating structure 10 and an adjusting structure 20. The head structure 10 includes an outer frame 11, strings 13, and an inner frame 12 having an elastic restoring force. Inner frame 12 may alternatively be formed from a relatively plastic metal material or a relatively elastic restoring plastic material. The outer frame 11 and the inner frame 12 are both annular structures, and optionally, the outer frame 11 and the inner frame 12 may be circular, oval or square in shape. In this embodiment, the outer frame 11 and the inner frame 12 are both elliptical in shape. The outer frame 11 has a positioning groove 111 formed on the surface thereof for the inner frame 12 to be disposed, and the positioning groove 111 extends along a circular path and is adapted to the inner frame 12. Optionally, the two side surfaces of the inner frame 12 are respectively arranged opposite to the two side groove wall gaps of the positioning groove 111, the inner ring side surface of the outer frame 11 is provided with a plurality of through holes 112 communicated with the positioning groove 111, the through holes 112 are arranged at intervals around the circumferential direction of the outer frame 11, a plurality of mesh wires 13 are arranged, and two ends of each mesh wire 13 are respectively penetrated with the two through holes 112 and connected with the inner ring side surface of the inner frame 12; optionally, two ends of each string 13 are connected to the inner ring side of the inner frame 12, are arranged in a staggered manner, and are woven into a racket net for hitting tennis balls. The adjusting structure 20 comprises an adjusting column 21 connected with the outer frame 11, an adjusting hole 114 communicated with the positioning groove 111 is formed in the outer ring side surface of the outer frame 11, and one end of the adjusting column 21 penetrates through the adjusting hole 114 in a sliding mode and is connected with the inner frame 12; wherein, adjust the post 21 and be provided with two at least, each adjusts post 21 and sets up around the circumference of frame 11 interval in proper order, and the other end of each regulation post 21 moves predetermined distance along the direction that deviates from frame 11 to increase the internal diameter of inside casing 12 and tensioning net twine 13. Optionally, four adjusting columns 21 are provided, and the four adjusting columns 21 are symmetrically arranged about the central position of the inner frame 12. It will be appreciated that inner frame 12 has a certain elastic restoring force, and that under the action of external forces, the adjustment posts 21 drive the inner frame 12 to deform appropriately, so that its inner diameter can expand appropriately, thereby stretching and tensioning the wires 13 connected thereto. It will be appreciated that the slack in the mesh 13 is generally not very large, the inner diameter of inner frame 12 is suitably enlarged, and the circumference of inner frame 12 is suitably increased to tension mesh 13.

Referring to fig. 1 to 3, the inner frame 12 moves together with the adjusting posts 21, the adjusting posts 21 are fixed in position after moving in place, the inner diameter of the inner frame 12 increases along the moving direction of the adjusting posts 21, and the increased inner diameter of the inner frame 12 is fixed together with the fixing of the adjusting posts 21, so as to prevent the inner frame 12 from shrinking and further tension the mesh wires 13 properly.

Alternatively, a part of the inner frame 12 may be fixedly connected to the inner wall of the positioning groove 111, so that the adjusting column 21 increases the inner diameter of the inner frame 12, and the inner frame 12 and the outer frame 11 are stably connected.

Referring to fig. 1 to 3, in one embodiment, the wall of the adjusting hole 114 is provided with an internal thread, the adjusting post 21 is provided with an external thread matching with the internal thread, and one end of the adjusting post 21 is screwed into the adjusting hole 114 and rotatably connected to the inner frame 12. It will be appreciated that the adjustment posts 21 remain connected to the inner frame 12 during rotation without departing from the inner frame 12, thereby driving the inner diameter of the inner frame 12 to increase.

In one embodiment, the inner frame 12 is provided with a switch hole 123 corresponding to the position of the adjusting column 21, one end of the adjusting column 21 is provided with a clamping groove and penetrates through the switch hole 123, an extending path of the clamping groove is annularly arranged, a limiting ring 23 is arranged in the clamping groove, and the limiting ring 23 is used for preventing the adjusting column 21 from being separated from the inner frame 12 in the rotating process and pushing the inner diameter of the inner frame 12 to increase.

Referring to fig. 4, in an embodiment, a threaded hole 122 is formed at a position where the inner frame 12 is connected to the adjusting column 21, the adjusting column 21 is screwed to the threaded hole 122, a positioning hole 113 is formed at a position corresponding to the adjusting hole 114 on the inner ring side of the outer frame 11, the positioning hole 113 is communicated with the positioning slot 111, and two ends of the adjusting column 21 are rotatably disposed in the adjusting hole 114 and the positioning hole 113, respectively. The adjusting column 21 rotates relative to the outer frame 11 to drive the inner frame 12 to move along the axial direction of the adjusting column 21. Alternatively, according to the principle of a threaded rod, the adjusting column 21 converts the rotary motion into a linear movement of the inner frame 12 during the rotation, so that the inner diameter of the inner frame 12 is increased for the purpose of tensioning the mesh wire 13. It can be understood that, during the rotation of the adjusting column 21, the two ends of the adjusting column 21 are respectively rotatably disposed in the adjusting hole 114 and the positioning hole 113, and are connected to the two side walls of the positioning slot 111 without being separated from the outer frame 11.

In one embodiment, the adjusting structure 20 further comprises an adjusting head 22, and the two ends of the adjusting column 21 are respectively connected to the adjusting head 22 and the inner frame 12. The adjusting column 21 is driven to rotate by matching the adjusting head 22 with a tool, and the operation is simple and convenient.

Referring to fig. 1 to fig. 3, in an embodiment, the adjusting structure 20 further includes a guiding pillar, two ends of the guiding pillar are respectively connected to two side groove walls of the positioning groove 111, a guiding hole 121 is formed in the inner frame 12 corresponding to the guiding pillar, and the guiding pillar penetrates through the guiding hole 121. The inner frame 12 is stably fixed in the positioning groove 111 by the cooperation of the guide posts and the guide holes 121, so that the head unit 100 can be kept stable as a whole when the tennis ball is hit by the inner frame 12.

In one embodiment, the outer frame 11 includes a bottom plate 116, a first outer ring 115 and a second outer ring 117, the second outer ring 117 is disposed at intervals in the first outer ring 115, and the first outer ring 115 and the second outer ring 117 are connected to the bottom plate 116 and jointly form the positioning slot 111. Alternatively, the first outer ring 115 and the second outer ring 117 may be detachably connected to the base plate 116 by screws, thereby facilitating the mounting of the head unit 100. The adjusting hole 114 is opened in the first outer ring 115, and the positioning hole 113 is opened in the second outer ring 117. Optionally, the head structure 10 further includes a cover plate connected to the outer frame 11 and covering the notch of the positioning groove 111 to improve the aesthetic appearance of the head structure 10.

Referring to fig. 1 to 3, the present invention further provides a tennis racket, which includes a racket head 100, the specific structure of the racket head 100 refers to the above embodiments, and since the tennis racket adopts all the technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are also achieved, and are not repeated herein.

In one embodiment, the tennis racket further includes a shaft 30 to be held by a human hand, and one end of the shaft 30 is connected to the outer frame 11.

In one embodiment, the tennis racket further includes a rubber cover that is fitted over the free end of the shaft 30. The friction between the human hand and the racket shaft 30 can be improved by the rubber sleeve.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A head shooting apparatus, comprising:

2. The head beating device according to claim 1, wherein: the hole wall of the adjusting hole is provided with an internal thread, the adjusting column is provided with an external thread matched with the internal thread, and one end of the adjusting column is screwed in the adjusting hole and is rotatably connected with the inner frame.

3. The head beating device as recited in claim 2, wherein: the inside casing corresponds the position of adjusting the post has seted up the switching hole, the one end of adjusting the post has seted up the draw-in groove and wears to establish the switching hole, the extension route of draw-in groove is the annular setting, be provided with the spacing ring in the draw-in groove.

4. The head beating device according to claim 1, wherein: the inner frame is connected with the adjusting column, a threaded hole is formed in the position of the inner frame, the adjusting column is connected with the threaded hole in a screw locking mode, a positioning hole is formed in the side face of the inner ring of the outer frame, corresponding to the position of the adjusting hole, the positioning hole is communicated with the positioning groove, two ends of the adjusting column are respectively rotatably arranged in the adjusting hole and the positioning hole, and the adjusting column rotates relative to the outer frame to drive the inner frame to move axially along the adjusting column.

5. The head beating device of claim 4, wherein: the adjusting structure further comprises an adjusting head, and two ends of the adjusting column are respectively connected with the adjusting head and the inner frame.

6. The head beating device according to claim 1, wherein: the adjusting structure further comprises a guide post, two ends of the guide post are respectively connected with two side groove walls of the positioning groove, a guide hole is formed in the position, corresponding to the guide post, of the inner frame, and the guide post penetrates through the guide hole.

7. The head beating device according to claim 1, wherein: the outer frame comprises a bottom plate, a first outer ring and a second outer ring, the second outer ring is arranged in the first outer ring at intervals, the first outer ring and the second outer ring are connected with the bottom plate and jointly form the positioning groove, and the adjusting hole is formed in the first outer ring.

8. A tennis racket comprising a head assembly as defined in any one of claims 1 to 7, and a shaft for being held by a human hand, one end of the shaft being connected to the outer frame.

9. A tennis racket as defined in claim 8, wherein: the tennis racket further comprises a rubber sleeve, and the rubber sleeve is sleeved outside the free end of the racket rod.