CN218686187U

CN218686187U - Freely combined tennis training rebounding device

Info

Publication number: CN218686187U
Application number: CN202222431925.4U
Authority: CN
Inventors: 梁林; 张枝尚
Original assignee: Guangdong Medical University
Current assignee: Guangdong Medical University
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-03-24
Anticipated expiration: 2032-09-14

Abstract

The utility model belongs to the technical field of tennis training equipment technique and specifically relates to indicate a free combination's tennis training bounce-back device, including a plurality of strings of net stands and a plurality of tennis bounce-back net, the both sides of tennis bounce-back net all are equipped with a plurality of rings body, the string of net stand includes the handle ring, the string of net axostylus axostyle, lift adjustment subassembly and counter weight base, lift adjustment subassembly's lift end is connected with the bottom detachably of string of net axostylus axostyle, the bottom and the counter weight base detachably of lift adjustment subassembly's stiff end or string of net axostylus axostyle are connected, the string of net axostylus axostyle is equipped with multiunit string of net structure, the string of net structure includes a plurality of string of net rings, a plurality of string of net rings are the ring array around the central axis of string of net axostylus axostyle and distribute, the string of net ring body detachably who corresponds is connected. The tennis training rebounding wall can be freely combined into tennis training rebounding walls with different specifications and sizes or/and shapes according to the size of a field, the number of training personnel and the height of the training personnel, and is flexible and diversified to use, strong in practicability and wide in application range.

Description

Freely combined tennis training rebounding device

Technical Field

The utility model belongs to the technical field of tennis training equipment technique and specifically relates to indicate a freely combined tennis training bounce-back device.

Background

With popularization and implementation of national sports, more and more people are aware of the importance of scientific fitness, and people can select proper sports according to self conditions. Tennis as the second major sports in the world has also become more popular in China in recent years, not only has stronger sports competitive performance, but also has better sports ornamental value, and players and audiences can fully feel the charm brought by tennis.

However, the tennis sport is restricted by the factors of less fields, more expensive field charges, far-away fields and the like, and therefore, particularly in colleges and universities or various sports centers, the field restriction becomes the largest blocking factor restricting the tennis sport, and therefore, rebound nets and tennis walls are provided to relieve the field restriction. The training personnel can rebound the tennis through the rebound net or the tennis wall so as to carry out tennis hitting training; such as: patent document No. 202121119929.8 discloses a tennis training bounce net, and patent document No. 202121127231.0 discloses a tennis training wall. The structural style of present bounce net and training wall is fixed, and the function is single, can't adjust the use according to training personnel's how much, the size in place and training personnel's height with the adaptation. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the present invention is to provide a freely combined tennis training rebounding device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a freely combined tennis training rebounding device comprises a plurality of net hanging columns and a plurality of tennis rebounding nets, wherein two sides of each tennis rebounding net are respectively detachably connected with two adjacent net hanging columns, a plurality of ring bodies are arranged on two sides of each tennis rebounding net and are equidistantly distributed on the side edges of each tennis rebounding net, each net hanging column comprises a handle ring, a net hanging shaft rod, a lifting adjusting assembly and a counterweight base, the handle ring is fixedly connected to the top end of the net hanging shaft rod, the lifting end of the lifting adjusting assembly is detachably connected with the bottom end of the net hanging shaft rod, the bottom of lift adjustment assembly's stiff end or string net axostylus axostyle is connected with counter weight base detachably, the axial equidistance of string net axostylus axostyle is provided with multiunit string net structure, a plurality of rings on every side of tennis bounce net respectively with multiunit string net structure one-to-one setting, every group string net structure include with string net axostylus axostyle fixed connection's a plurality of string net rings, a plurality of string net rings are the annular array around the central axis of string net axostylus axostyle and distribute, a string net ring in every group string net structure is connected with the ring detachably that corresponds.

Furthermore, the net hanging ring is provided with a gap, and the ring body is hung in the net hanging ring through the gap.

Further, lift adjustment subassembly includes closing cap, sleeve, lifter and locking part, and telescopic top is located to the closing cap lid, and the top of lifter is run through behind the closing cap and is connected with the bottom detachably of hanging the net axostylus axostyle, the bottom and the telescopic inner chamber sliding connection of lifter, and the locking part is used for locking lifter and sleeve, and the top of counter weight base is connected with the bottom or telescopic bottom detachably of hanging the net axostylus axostyle.

Furthermore, the inner cavity of the sleeve is concavely provided with a guide groove, the lifting rod is convexly provided with a guide block, the guide block is in sliding connection with the guide groove, and the sealing cover is used for limiting the guide block in the guide groove.

Further, the cover is fastened to the top end of the sleeve by screws.

Furthermore, the top end of the lifting rod is provided with a first thread section, the bottom end of the net hanging shaft rod is provided with a first thread hole, and the first thread section is in threaded connection with the first thread hole.

Further, a second threaded hole is formed in the bottom end of the sleeve, a second threaded section is arranged at the top end of the counterweight base, and the second threaded section is in threaded connection with the second threaded hole or the first threaded hole.

Furthermore, the locking part is a bolt, a screw hole is radially formed in the sleeve, the screw hole is communicated with the inner cavity of the sleeve, a stud of the bolt is in threaded connection with the screw hole, and the end part of the stud of the bolt is used for abutting against the lifting rod.

Further, the inside of counter weight base is provided with fills the chamber, and the lateral wall of counter weight base is seted up with the filling opening that fills the chamber intercommunication, and filling opening detachably is connected with the sealing plug.

Further, the circumference of sealing plug is provided with the external screw thread, and the inner wall of filling opening is provided with the internal thread, external screw thread and internal thread threaded connection.

The utility model has the advantages that: the utility model has the advantages of simple structure, dismouting, maintenance, use, accomodate and carry etc. convenient, can come the free combination into the tennis training bounce-back wall of different specification sizes or shape according to the size in place, what of training personnel and training personnel's height, use nimble, diversified to satisfy different user demands, the practicality is strong, and application range is wide.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the tennis training rebound wall in a straight line shape assembled by the utility model.

Fig. 2 is a schematic view of the three-dimensional structure of the triangular tennis training rebounding wall assembled by the utility model.

Fig. 3 is a schematic view of the three-dimensional structure of the quadrilateral tennis training rebounding wall assembled by the utility model.

Fig. 4 is a schematic perspective view of the net hanging column of the present invention.

Fig. 5 is a cross-sectional view of the net hanging column of the present invention.

Fig. 6 is a schematic structural view of the tennis rebounding net of the present invention.

Description of reference numerals:

1. hanging a net upright post; 2. tennis ball rebounding net; 3. a ring body; 4. a lifting ring; 5. a net hanging shaft lever; 6. a lift adjustment assembly; 7. a counterweight base; 8. a net hanging structure; 9. hanging a net ring; 10. a notch; 11. sealing the cover; 12. a sleeve; 13. a lifting rod; 14. a locking member; 15. a screw; 16. a first thread segment; 17. a first threaded hole; 18. a second threaded hole; 19. a second thread segment; 20. a screw hole; 21. filling the cavity; 22. a fill port; 23. a sealing plug; 24. screwing the handle; 25. a non-slip mat; 26. a rebound net body; 27. and (6) a frame.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 6, the freely combined tennis training rebounding device provided by the present invention comprises a plurality of net hanging columns 1 and a plurality of tennis rebounding nets 2, wherein two sides of each tennis rebounding net 2 are detachably connected with two adjacent net hanging columns 1, two sides of each tennis rebounding net 2 are respectively provided with a plurality of ring bodies 3, the plurality of ring bodies 3 are equidistantly arranged and distributed at the side of each tennis rebounding net 2, each net hanging column 1 comprises a handle ring 4, a net hanging shaft rod 5, a lifting adjusting assembly 6 and a counterweight base 7, the handle ring 4 is fixedly connected with the top end of the net hanging shaft rod 5, the lifting end of the lifting adjusting assembly 6 is detachably connected with the bottom end of the net hanging shaft rod 5, the stiff end of lift adjustment subassembly 6 or the bottom of string net axostylus axostyle 5 is connected with the top detachably of counter weight base 7, the axial equidistance of string net axostylus axostyle 5 is provided with multiunit string net structure 8, a plurality of rings 3 on each side of tennis bounce net 2 set up with 8 one-to-one of multiunit string net structure respectively, every group string net structure 8 all includes a plurality of string net rings 9 with string net axostylus axostyle 5 fixed connection, a plurality of string net rings 9 are the annular array around the central axis of string net axostylus axostyle 5 and distribute, a string net ring 9 in every group string net structure 8 is connected with the 3 detachably of the ring that corresponds.

In practical application, because a plurality of string net rings 9 are distributed in an annular array around the central axis of the string net shaft lever 5, the string net upright posts 1 and the tennis rebounding nets 2 can be freely combined for use according to the number of training personnel and the size of a training field to form tennis training rebounding walls with different shapes, the combined use is diversified, and one tennis rebounding net 2 in the tennis training rebounding wall is used for a training personnel to perform tennis hitting training, such as: the tennis training device comprises a straight tennis training rebounding wall, a V-shaped tennis training rebounding wall, a Mizi tennis training rebounding wall, a polygonal tennis training rebounding wall and the like, wherein the size of the straight tennis training rebounding wall, the size of the V-shaped tennis training rebounding wall and the size of the polygonal tennis training rebounding wall can be changed according to the combination of different quantities of the net hanging columns 1 and the tennis rebounding nets 2. For example: when the number of the trainees is one, the two net hanging upright posts 1 and the tennis bounce net 2 are combined to form a straight tennis training bounce wall; when the number of the trainees is two, the three net hanging columns 1 and the two tennis rebounding nets 2 are combined to form a linear tennis training rebounding wall or a V-shaped tennis training rebounding wall, and the two tennis rebounding nets 2 are respectively used for the two trainees to carry out tennis hitting training; when the number of the trainers is two or three, the triangular tennis training rebounding wall is formed by combining the three net hanging columns 1 and the three tennis rebounding nets 2; when the number of the trainers is four, the four net hanging columns 1 and the four tennis rebounding nets 2 are combined to form the quadrilateral tennis training rebounding wall.

When the net hanging upright posts 1 are assembled with the tennis rebounding net 2, the ring bodies 3 on two sides of the tennis rebounding net 2 are respectively hung with the net hanging rings 9 at the corresponding positions on the two adjacent net hanging upright posts 1, so that the two adjacent net hanging upright posts 1 support the tennis rebounding net 2, a trainer can perform tennis hitting training, the trainer can hit a tennis ball to the tennis rebounding net 2, and the tennis rebounding net 2 can rebound the tennis ball, so that the trainer can continuously perform batting training. In addition, according to the height requirements of different trainees, the net hanging shaft rod 5 can be directly assembled with the counterweight base 7 for use, the net hanging shaft rod 5 can also be assembled with the counterweight base 7 for use through the lifting adjusting component 6, and the height of the tennis bounce net 2 can be changed through different use forms. In order to further meet the requirements of trainers with different heights, when the net hanging shaft rod 5, the lifting adjusting component 6 and the counterweight base 7 are sequentially assembled together for use, the height of the net hanging shaft rod 5 is adjusted by adjusting the lifting adjusting component 6, so that the height of the tennis rebounding net 2 is adjusted, the height adjusting range of the tennis rebounding net 2 is enlarged, and the applicability is stronger. Counter weight base 7 and ground contact because counter weight base 7 has a basis weight, so hang the phenomenon that net stand 1 is difficult to take place the skew or rock, improved the utility model discloses stability when using to promote the effect of tennis training. Because the hanging net stand 1 is detachable structure, so realized hanging net stand 1's modular assembly, the dismouting is convenient with the maintenance, it is right to be convenient for the utility model discloses accomodate, carry and transport etc.. Certainly, when outdoor activities, also can pass through the utility model discloses enclose and establish into polygon tennis training bounce-back wall, this polygon tennis training bounce-back wall acts as the rail and uses, forms the activity space in this polygon tennis training bounce-back wall, and the personnel can play etc. in the activity space. Through the setting of carrying the ring 4, be convenient for carry and take hanging net stand 1. In addition, the utility model discloses not only can freely make up into tennis training bounce-back wall, can also act as the tennis frame and use in training and match.

The utility model has the advantages of simple structure, dismouting, maintenance, use, accomodate and carry etc. convenient, can come the free combination into the tennis training bounce-back wall of different specification sizes or shape according to the size in place, what of training personnel and training personnel's height, use nimble, diversified to satisfy different user demands, the practicality is strong, and application range is wide.

Specifically, in the same group of the net hanging structures 8, the angle between two adjacent net hanging rings 9 is 15 ° or 30 °, that is, the plurality of net hanging rings 9 in the same group of the net hanging structures 8 are distributed at equal angles. The structural design is favorable for freely combining and using the plurality of net hanging upright posts 1 and the plurality of tennis rebounding nets 2 to form tennis training rebounding walls with different shapes.

In this embodiment, the net hanging ring 9 is provided with a gap 10, and the ring body 3 is hung in the net hanging ring 9 through the gap 10; the gap 10 is convenient for the ring body 3 and the net hanging ring 9 to be connected together, thereby being convenient for the tennis bounce net 2 to be disassembled and assembled.

In this embodiment, the lifting adjusting assembly 6 includes a sealing cover 11, a sleeve 12, a lifting rod 13 and a locking member 14, the sealing cover 11 is covered on the top end of the sleeve 12, the top end of the lifting rod 13 is detachably connected with the bottom end of the mesh hanging shaft rod 5 after penetrating through the sealing cover 11, the bottom end of the lifting rod 13 is slidably connected with the inner cavity of the sleeve 12, the locking member 14 is used for locking the lifting rod 13 with the sleeve 12, and the top end of the counterweight base 7 is detachably connected with the bottom end of the mesh hanging shaft rod 5 or the bottom end of the sleeve 12; specifically, the locking member 14 is a bolt, a screw hole 20 is radially formed in the sleeve 12, the screw hole 20 is communicated with an inner cavity of the sleeve 12, a stud of the bolt is in threaded connection with the screw hole 20, and an end of the stud of the bolt is used for abutting against the lifting rod 13.

In practical application, when the height of the tennis rebounding net 2 needs to be adjusted, the locking piece 14 is unscrewed, so that the locking piece 14 releases the locking of the lifting rod 13, the lifting rod 13 can move up and down along the inner cavity of the sleeve 12 relative to the sleeve 12 to adjust the heights of the lifting rod 13, the net hanging shaft rod 5 and the tennis rebounding net 2, and after the height is adjusted, the locking piece 14 is screwed down, so that the lifting rod 13 is locked on the sleeve 12 by the locking piece 14, and the lifting rod 13 and the sleeve 12 are prevented from being loosened.

In this embodiment, the inner cavity of the sleeve 12 is concavely provided with a guide groove, the lifting rod 13 is convexly provided with a guide block, the guide block is slidably connected with the guide groove, and the sealing cover 11 is used for limiting the guide block in the guide groove. At the in-process that lifter 13 goes up and down, guide block and guide slot sliding fit play the effect of direction, have improved lifter 13's lift stability, and guide block and guide slot location fit prevent that lifter 13 from rotating relative sleeve 12 for lifter 13 can only be along sleeve 12's inner chamber lift removal. Wherein, the closing cap 11 limits the guide block in the guide slot, and prevents the lifting rod 13 from excessively lifting and separating from the sleeve 12.

In this embodiment, the cover 11 is fastened to the top end of the sleeve 12 by screws 15; due to the structural design, the sealing cover 11 and the sleeve 12 can be conveniently disassembled, and the lifting rod 13 and the sleeve 12 can be conveniently disassembled.

In this embodiment, the top end of the lifting rod 13 is provided with a first threaded section 16, the bottom end of the mesh hanging shaft rod 5 is provided with a first threaded hole 17, and the first threaded section 16 is in threaded connection with the first threaded hole 17. This structural design, the dismantlement and the maintenance of lifter 13 and hanging net axostylus axostyle 5 of being convenient for, and firm in connection.

In this embodiment, the bottom end of the sleeve 12 is provided with a second threaded hole 18, the top end of the counterweight base 7 is provided with a second threaded section 19, and the second threaded section 19 is in threaded connection with the second threaded hole 18 or the first threaded hole 17. This structural design, the dismouting and the maintenance of the counter weight base 7 selectivity and sleeve 12 or the peg 5 of being convenient for, and firm in connection.

In this embodiment, the inside of the counterweight base 7 is provided with a filling cavity 21, the sidewall of the counterweight base 7 is provided with a filling port 22 communicated with the filling cavity 21, and the filling port 22 is detachably connected with a sealing plug 23. In practical application, the sealing plug 23 is opened, the filling material (such as water, sand, etc.) is filled into the filling cavity 21 through the filling port 22, and after the filling is completed, the filling port 22 is sealed through the sealing plug 23, so that the leakage of the filling material in the filling cavity 21 is prevented. The weight of the counterweight base 7 is increased by filling filler, so that the net hanging upright post 1 is more stable in the using process and convenient to fill. When needing to carry the utility model discloses the time, pour the filler in filling chamber 21, can alleviate the weight of counter weight base 7, carry and carry lightly. Specifically, the weight of the filler filled in the filling cavity 21 can be adjusted according to the hitting force of different trainees.

In this embodiment, the sealing plug 23 is circumferentially provided with an external thread, the inner wall of the filling opening 22 is provided with an internal thread, and the external thread is in threaded connection with the internal thread. This structural design is convenient for open or close sealing plug 23, and sealing plug 23 and counter weight base 7's firm in connection, the leakproofness is good.

Specifically, the sealing plug 23 is provided with a twist handle 24, and the sealing plug 23 is a rubber plug. This structural design, the user is convenient for twist and moves sealing plug 23, simple operation, labour saving and time saving through twisting handle 24 and operating.

Specifically, the tennis bounce net 2 comprises a bounce net body 26 and a frame 27 arranged at the edge of the bounce net body 26, and a plurality of ring bodies 3 are connected to both sides of the frame 27; the service life of the tennis bounce net 2 with the structure is long; of course, the tennis net 2 may be a net of the prior art, and will not be described herein.

Of course, the lifting adjusting assembly 6 may also adopt a telescopic rod structure, and the height of the tennis bounce net 2 is adjusted by adjusting the extension and retraction of the telescopic rod structure; the lifting adjusting assembly 6 may also adopt a lifting adjusting device in the prior art, and will not be described in detail herein.

Specifically, the bottom surface of the counterweight base 7 is provided with an anti-slip pad 25; the setting of slipmat 25 has increased the frictional force between counter weight base 7 and the ground, and antiskid effect is good, has further improved the stability in use of hanging net stand 1.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. A freely combined tennis training rebounding device is characterized in that: comprises a plurality of net hanging upright posts and a plurality of tennis rebounding nets, wherein two sides of each tennis rebounding net are respectively detachably connected with two adjacent net hanging upright posts, a plurality of ring bodies are respectively arranged on two sides of each tennis rebounding net and are equidistantly distributed on the side edges of each tennis rebounding net, each net hanging upright post comprises a handle ring, a net hanging shaft rod, a lifting adjusting assembly and a counterweight base, the handle ring is fixedly connected to the top end of the net hanging shaft rod, the lifting end of the lifting adjusting assembly is detachably connected with the bottom end of the net hanging shaft rod, the bottom of lift adjustment assembly's stiff end or string net axostylus axostyle is connected with counter weight base detachably, the axial equidistance of string net axostylus axostyle is provided with multiunit string net structure, a plurality of rings on every side of tennis bounce net respectively with multiunit string net structure one-to-one setting, every group string net structure include with string net axostylus axostyle fixed connection's a plurality of string net rings, a plurality of string net rings are the annular array around the central axis of string net axostylus axostyle and distribute, a string net ring in every group string net structure is connected with the ring detachably that corresponds.

2. A freely combinable tennis training rebound device as defined in claim 1, wherein: the net hanging ring is provided with a gap, and the ring body is hung in the net hanging ring through the gap.

3. A freely combinable tennis training rebound device as defined in claim 1, wherein: the lifting adjusting assembly comprises a sealing cover, a sleeve, a lifting rod and a locking piece, the sealing cover is arranged on the top of the sleeve, the top end of the lifting rod is connected with the bottom end of the net hanging shaft rod in a detachable mode after penetrating through the sealing cover, the bottom end of the lifting rod is connected with the inner cavity of the sleeve in a sliding mode, the locking piece is used for locking the lifting rod with the sleeve, and the top end of the counterweight base is connected with the bottom end of the net hanging shaft rod or the bottom end of the sleeve in a detachable mode.

4. A freely combinable tennis training rebound device as defined in claim 3, wherein: the inner cavity of the sleeve is concavely provided with a guide groove, the lifting rod is convexly provided with a guide block, the guide block is connected with the guide groove in a sliding manner, and the sealing cover is used for limiting the guide block in the guide groove.

5. A freely combinable tennis training rebound device as defined in claim 3, wherein: the cover is locked on the top end of the sleeve through screws.

6. A freely combinable tennis training rebound device as defined in claim 3, wherein: the top of lifter is provided with first screw thread section, and first screw hole has been seted up to the bottom of string net axostylus axostyle, first screw thread section and first screw hole threaded connection.

7. A freely combinable tennis training rebound device according to claim 6, wherein: the bottom end of the sleeve is provided with a second threaded hole, the top end of the counterweight base is provided with a second threaded section, and the second threaded section is in threaded connection with the second threaded hole or the first threaded hole.

8. A freely combinable tennis training rebound device as defined in claim 3, wherein: the locking part is a bolt, a screw hole is radially formed in the sleeve, the screw hole is communicated with the inner cavity of the sleeve, a stud of the bolt is in threaded connection with the screw hole, and the end part of the stud of the bolt is used for abutting against the lifting rod.

9. A freely combinable tennis training rebound device as defined in claim 1, wherein: the inside of counter weight base is provided with fills the chamber, and the filling opening with filling the chamber intercommunication is seted up to counter weight base's lateral wall, and filling opening detachably is connected with the sealing plug.

10. A freely combinable tennis training rebound device as defined in claim 9, wherein: the circumference of sealing plug is provided with the external screw thread, and the inner wall of filling opening is provided with the internal thread, external screw thread and internal thread threaded connection.