CN114699755B - Intelligent tennis training ware is adjusted to multi-angle - Google Patents
Intelligent tennis training ware is adjusted to multi-angle Download PDFInfo
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- CN114699755B CN114699755B CN202210347118.6A CN202210347118A CN114699755B CN 114699755 B CN114699755 B CN 114699755B CN 202210347118 A CN202210347118 A CN 202210347118A CN 114699755 B CN114699755 B CN 114699755B
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/38—Training appliances or apparatus for special sports for tennis
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/40—Stationarily-arranged devices for projecting balls or other bodies
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- Physical Education & Sports Medicine (AREA)
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Abstract
The invention belongs to the technical field of tennis training, and particularly relates to a multi-angle adjustable intelligent tennis training device which comprises a rack, a net cloth and a tennis outlet pipe, wherein the top of the rack is fixedly connected with the tennis outlet pipe, the net cloth is fixedly connected with the rack through an elastic rope, the tennis training device also comprises an elastic unit, and the elastic unit is arranged on one side of the bottom of the rack; by arranging the elastic net, when a tennis ball falls on the rotating elastic net, the bouncing direction of the tennis ball is influenced by the elasticity of the elastic net and the pulling force generated by the rotation of the elastic net, and the direction of the pulling force generated by the rotation of the elastic net is changed due to the change of the rotation direction of the elastic net, so that the variety of the bouncing directions of the tennis ball on the elastic net is increased, the bouncing angle change range of the tennis ball on the elastic net is expanded, the tennis ball runs in multiple directions for hitting balls in the process of using the tennis training device, and the multi-direction movement training effect of the tennis ball is further improved.
Description
Technical Field
The invention belongs to the technical field of tennis training, and particularly relates to a multi-angle adjustable intelligent tennis trainer.
Background
In life, people who love tennis are more and more, participants are not few, but beginners all place exercise enthusiasm in the action with strong skill such as heavy batting and net front interception, and often neglect the most basic quality requirements of athletes.
Tennis players have the characteristics of better response speed, action speed, explosive force, sensitivity, psychological quality and the like, and only if the tennis players have the characteristics of quick starting, sudden stop, turning and accelerating capabilities on a game field, the tennis players can better adapt to the requirements of running, sudden stop and turning on the field, so that the multidirectional movement training mainly aims at improving the sensitivity, action speed and frequency, emergency response and turning capabilities, starting and accelerating capabilities, buffering capabilities and braking capabilities of a nervous system of the tennis players so as to adapt to the requirements of tennis matches.
For example, when a player uses the tennis short-distance hitting trainer, the position and the direction of a step are constantly changed by searching and hitting the bouncing ball, so that the flexibility and the movement of the step of the player are exercised.
Based on the above, the invention designs a multi-angle adjustment intelligent tennis training device to solve the technical problems.
Disclosure of Invention
In order to make up for the defects and solve the problem that the multi-direction movement training effect of a player is poor due to the fact that the degree of change of the bouncing angle of tennis on an elastic net is small in the using process of an existing tennis close-range hitting trainer, the invention provides a multi-angle adjusting intelligent tennis trainer.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a multi-angle adjustable intelligent tennis trainer, which comprises a rack, a net cloth and a ball outlet pipe, wherein the top of the rack is fixedly connected with the ball outlet pipe, the net cloth is fixedly connected with the rack through a rope, the tennis trainer also comprises an elastic unit, the elastic unit is arranged on one side of the bottom of the rack, and the elastic unit comprises:
the base is positioned on one side, close to the ball outlet pipe, of the rack and is fixedly connected with the bottom of the rack;
the shell is fixedly connected with the base, and the top of the shell is provided with an opening;
the driving shaft is rotatably connected with the inner wall of the shell;
the elastic net is rotatably connected with the surface of the driving shaft and is positioned at the opening;
a controller for controlling the operation of the tennis trainer.
Preferably, a tensioning device is fixedly connected inside the casing, the tensioning device comprises a support and a tensioning wheel, the tensioning wheel is in contact with the elastic net, and the tensioning device is used for adjusting the tensioning force on the surface of the elastic net.
Preferably, the elastic net is formed by splicing a plurality of sections of net materials, and the elastic net comprises a first net, a second net and a third net.
Preferably, the mesh materials of the first mesh, the second mesh and the third mesh are different from each other.
Preferably, the surface of the second mesh is fixedly connected with a bump.
Preferably, the cross-sectional shape of the projection is configured to be semicircular.
Preferably, the bump is connected with the surface of the second mesh through a magic tape.
Preferably, the distance between the convex blocks is larger or smaller than the diameter of the tennis ball.
Preferably, the base is fixedly connected with the bottom of the frame through a first expansion piece, and the bottom of the casing is fixedly connected with the upper surface of the base through a second expansion piece.
Preferably, a hinge device is arranged between the second expansion piece and the bottom of the machine shell, one end of the hinge device is fixedly connected with the end part of the second expansion piece through a hinge, and the other end of the hinge device is connected with the bottom of the machine shell in a sliding mode.
The invention has the following beneficial effects:
1. according to the multi-angle adjusting intelligent tennis trainer, the elastic net is arranged, so that when tennis balls fall on the rotating elastic net, the bouncing direction of the tennis balls is influenced by the elasticity of the elastic net and the pulling force generated by the rotation of the elastic net, and the direction of the pulling force generated by the rotation of the elastic net is changed due to the change of the rotation direction of the elastic net, so that the diversity of the bouncing direction of the tennis balls on the elastic net is increased, the bouncing angle change range of the tennis balls on the elastic net is expanded, and the multi-direction movement training effect of athletes is further improved.
2. According to the multi-angle adjusting intelligent tennis trainer, the second net and the convex blocks are arranged, when tennis balls are in contact with the surface of the second net, the convex blocks are arranged on the surface of the second net and collide with the surface of the tennis balls, and after collision, the convex blocks can change the bouncing direction of the tennis balls; meanwhile, the cross section of the bump is semicircular, the cross section of the tennis ball is circular, and the circular edges are collided with each other to generate multiple ends, so that the variation degree of the bouncing back direction of the tennis ball is further enhanced.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a multi-angle intelligent tennis trainer in accordance with the present invention;
FIG. 2 is a sectional view of a housing of the multi-angle intelligent tennis trainer of the invention;
FIG. 3 is a schematic diagram of the structure of FIG. 2;
FIG. 4 is a cross-sectional view of the structure associated with mesh number two of FIG. 3;
FIG. 5 is a schematic view of the hinge assembly of FIG. 1;
in the figure: 1. a frame; 2. mesh cloth; 3. a ball outlet pipe; 4. a base; 41. a housing; 42. a drive shaft; 43. an elastic net; 431. a first net; 432. a second net; 433. a third net; 434. a bump; 435. magic tape; 44. a tensioning device; 45. a first retractor; 46. a second retractor; 461. a hinge device.
Detailed Description
In order to make the objects, technical means and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a multi-angle adjustment intelligent tennis trainer, and solves the problem that in the use process of the existing tennis close-range hitting trainer, the change degree of the bouncing angle of tennis on an elastic net is small, so that the multi-direction movement training effect of an athlete is poor;
in order to solve the technical problems, the technical scheme in the embodiment of the invention has the following general idea:
the driving shaft 42 is arranged in the housing 41, the elastic net 43 rotates on the surface of the driving shaft 42, the controller intelligently and intermittently controls the rotation direction or the switch of the driving shaft 42, the driving shaft 42 drives the elastic net 43 to rotate clockwise or anticlockwise in the housing 41, when tennis is contacted with the moving elastic net 43, the bouncing direction of the tennis is influenced by the self elasticity of the elastic net 43 and the pulling force generated by the rotation of the elastic net 43, and the direction of the pulling force generated by the rotation of the elastic net 43 is changed due to the change of the rotation direction of the elastic net 43.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 5, the multi-angle adjustable intelligent tennis training device of the present invention comprises a frame 1, a net cloth 2, a ball outlet pipe 3, an elastic unit, wherein the top of the frame 1 is fixedly connected with the ball outlet pipe 3, the net cloth 2 is fixedly connected with the frame 1 through a rope, the elastic unit is installed at one side of the bottom of the frame 1, and the elastic unit comprises:
the base 4 is positioned on one side, close to the ball outlet pipe 3, of the rack 1, and the base 4 is fixedly connected with the bottom of the rack 1;
the casing 41, the casing 41 is fixedly connected with the base 4, and the top of the casing 41 is provided with an opening;
a driving shaft 42, wherein the driving shaft 42 is rotatably connected with the inner wall of the casing 41;
the elastic net 43 is rotatably connected on the surface of the driving shaft 42, and the elastic net 43 is positioned at the opening;
a controller for controlling the operation of the tennis trainer;
in the present invention, the existing rack 1 includes a support frame and a bottom frame, the top of the bottom frame is fixedly connected with the support frame, the mesh 2 is fixedly connected with the end of the support frame through an elastic rope, the tennis trainer is placed on a training field, and a switch inside the housing 41 is turned on, the controller controls the driving shaft 42 to be started, and intelligently and intermittently controls the rotation direction or the switch of the driving shaft 42, the driving shaft 42 drives the elastic net 43 to rotate clockwise or counterclockwise inside the housing 41, the player strikes the mesh 2 through hitting a ball, the existing mesh 2 is loose, the impact of the ball is buffered and absorbed, so the mesh 2 does not bounce the tennis ball, the tennis ball moves into the tennis outlet pipe 3 along the surface of the mesh 2, the tennis outlet pipe 3 is composed of a fan-shaped housing and a pipe, then the tennis ball moves in the fan-shaped housing of the tennis outlet pipe 3 under the action of its own gravity and falls on the surface of the elastic net 43 along the pipe port of the tennis outlet pipe 3, when the tennis ball falls on the static elastic net 43, the bouncing direction of the tennis ball is influenced by the elastic net 43, and the direction of the bouncing of the elastic net 43 is further changed, and the effect of the bouncing of the tennis ball is further increased when the tennis ball is raised, and the player 43, the player is raised in the player's rotating direction of the player's playing tennis ball, and the player's playing direction of the tennis ball is increased, the tennis ball is changed, and the player's playing tennis ball is increased.
As an embodiment of the present invention, as shown in fig. 2, a tensioning device 44 is fixedly connected inside the housing 41, the tensioning device 44 includes a bracket and a tensioning wheel, and the tensioning wheel is in contact with the elastic net 43, the tensioning device 44 is used to adjust the tensioning force on the surface of the elastic net 43; when the tennis ball is in operation, when the driving shaft 42 drives the elastic net 43 to rotate in the casing 41, the controller controls the tensioning device 44 to start, and the support is connected with the expansion device outside the casing 41, so that the tensioning device 44 controls the expansion device to drive the support to move, and the support drives the tensioning wheel to contact with the surface of the elastic net 43, so that the tensioning wheel drives the elastic net 43 at the bottom to move downwards, the surface of the elastic net 43 at the opening is pulled by the tensioning wheel, and the tensioning force of the surface of the elastic net 43 at the opening is increased, and when a tennis ball is in contact with the surface of the elastic net 43 at the opening, the force of the elastic net 43 at the opening for bouncing the tennis ball is further increased.
As an embodiment of the present invention, as shown in fig. 3, the elastic net 43 is composed of multiple sections of net materials, and the elastic net 43 includes a first net 431, a second net 432 and a third net 433;
as an embodiment of the present invention, as shown in fig. 3, the mesh materials of the first mesh 431, the second mesh 432 and the third mesh 433 are different from each other;
when the tennis ball is in contact with the surface of the elastic net 43, the elastic net 43 may be divided into a first net 431, a second net 432 and a third net 433, and the types of net materials are different, for example, the first net 431 is made of polyester thread, the second net 432 is made of cotton thread, and the third net 433 is made of nylon, because the types of net materials are different, the elastic coefficients of the first net 431, the second net 432 and the third net 433 are different, so that the heights of the tennis balls bouncing on different sections of the elastic net 43 are different, and the vertical change of the tennis balls when bouncing is increased.
As an embodiment of the present invention, as shown in fig. 4, a bump 434 is provided on the surface of the second mesh 432;
as an embodiment of the present invention, as shown in fig. 4, the cross-sectional shape of the projection 434 is configured to be a semicircle;
when the tennis ball is in contact with the surface of the second net 432 in operation, the bump 434 is arranged on the surface of the second net 432, the bump 434 collides with the surface of the tennis ball, and after the bump 434 collides, the direction of the bouncing of the tennis ball is changed; meanwhile, the cross section of the bump 434 is set to be semicircular, while the cross section of the tennis ball is circular, and the mutual collision between the circular edges generates multiple changes, thereby further enhancing the degree of change of the direction after the tennis ball bounces.
As an embodiment of the present invention, as shown in fig. 4, the bump 434 is connected to the surface of the second mesh 432 through a hook and loop fastener 435; when the tennis ball bouncing device works, the surface of the magic tape 435 is provided with hard bristles with hooks, the second net 432 is made of cotton threads, fine fluff fibers are arranged on the surfaces of the cotton threads, the fluff fibers hook the fluff fibers, the magic tape 435 is adhered to the surface of the second net 432, the bump 434 can be adhered to the surface of the second net 432 through the magic tape 435, the bump 434 is detachably connected to the surface of the second net 432, and therefore an athlete can adjust the distribution density of the bump 434 on the surface of the second net 432, and the distribution density of the bump 434 influences the complexity of tennis ball bouncing backward.
As an embodiment of the present invention, as shown in fig. 2 and as shown in fig. 4, the distance between the protrusions 434 is larger or smaller than the diameter of the tennis ball; when the tennis racket is in operation, when a tennis ball falls on the surface of the second net 432 and collides with the convex blocks 434, the distance between the convex blocks 434 is set to be larger than or smaller than the diameter of the tennis ball, so that the phenomenon that the tennis ball is clamped between the convex blocks 434 and stops on the surface of the second net 432 is reduced, and the result that a player cannot hit the tennis ball normally is caused.
As an embodiment of the present invention, as shown in fig. 1 and fig. 5, the base 4 is fixedly connected to the bottom of the rack 1 through a first expansion piece 45, and the bottom of the casing 41 is fixedly connected to the upper surface of the base 4 through a second expansion piece 46; when the tennis ball rebounding device works, the controller controls the first expansion piece 45 and the second expansion piece 46 to be started, so that the first expansion piece 45 and the second expansion piece 46 control the horizontal direction and the vertical direction of the shell 41, when a tennis ball moves out of the ball outlet pipe 3, the tennis ball falls onto the elastic net 43 in a parabolic moving track, and the first expansion piece 45 and the second expansion piece 46 can adjust the position of the shell 41, so that the controller adjusts the position of the elastic net 43 on the moving track by controlling the position of the shell 41, the tennis ball is in contact with the elastic nets 43 at different positions on the moving track, the rebounding direction can be changed, and the variation range of the rebounding direction of the tennis ball is further increased.
As an embodiment of the present invention, as shown in fig. 5, a hinge device 461 is disposed between the second expansion device 46 and the bottom of the housing 41, one end of the hinge device 461 is fixedly connected to the end of the second expansion device 46, and the other end of the hinge device 461 is slidably connected to the bottom of the housing 41; when the tennis racket works, when the driving shaft 42 drives the second expansion piece 432 to rotate to the opening, the controller intelligently controls the second expansion piece 46 to start, so that the second expansion piece 46 changes the angle of the case 41 in the horizontal direction through the hinge device 461, and the case 41 drives the second expansion piece 432 to incline towards the direction of a player, so that the effective area of the bump 434 in contact with the tennis ball is reduced through the inclination of the second expansion piece 432, and the tennis ball can be guided to bounce towards the position range of the position of the player when colliding with the bump 434, so that the moving track of the bouncing tennis ball towards the direction range of the position of the screen cloth 2 when the tennis ball contacts with the surface of the second expansion piece 432 is reduced.
The specific working process is as follows:
when the tennis trainer works, firstly, the tennis trainer is placed on a training field, a switch in the shell 41 is turned on, the controller controls the driving shaft 42 to be started, the rotation direction or the switch of the driving shaft 42 is intelligently and intermittently controlled, the driving shaft 42 drives the elastic net 43 to rotate clockwise or anticlockwise in the shell 41, a player hits a tennis ball to the net cloth 2, the tennis ball moves to the ball outlet pipe 3 along the surface of the net cloth 2, and then the tennis ball moves in the fan-shaped shell of the ball outlet pipe 3 under the action of self gravity and falls on the surface of the elastic net 43 along the pipe port passing through the ball outlet pipe 3; secondly, when a tennis ball falls on the elastic net 43 which is still, the direction of the bouncing of the tennis ball is influenced by the self elasticity of the elastic net 43, and when the tennis ball falls on the elastic net 43 which rotates, the direction of the bouncing of the tennis ball is influenced by the self elasticity of the elastic net 43 and the pulling force generated by the rotation of the elastic net 43, and the direction of the pulling force generated by the rotation of the elastic net 43 is changed due to the change of the rotation direction of the elastic net 43; finally, the elastic net 43 can be divided into a first net 431, a second net 432 and a third net 433, and the kinds of net materials are different, when the tennis ball contacts with the surface of the second net 432, because the surface of the second net 432 is provided with the bump 434, the bump 434 will collide with the surface of the tennis ball, and after the collision, the bump 434 will change the bouncing direction of the tennis ball.
The front, the back, the left, the right, the upper and the lower are based on the observation angle of the person, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in fig. 1, and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be taken as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an intelligent tennis training ware is adjusted to multi-angle, this tennis training ware includes frame (1), screen cloth (2) and goes out bulb (3), frame (1) top links firmly with play bulb (3) mutually, just screen cloth (2) link firmly mutually with frame (1) through the elasticity rope, its characterized in that still includes the elasticity unit, the elasticity unit is installed in frame (1) bottom one side, just the elasticity unit includes:
the base (4) is positioned on one side, close to the ball outlet pipe (3), of the rack (1), and the base (4) is fixedly connected with the bottom of the rack (1);
the shell (41), the shell (41) is fixedly connected with the base (4), and the top of the shell (41) is provided with an opening;
the driving shaft (42), the said driving shaft (42) is connected in said inner wall of the chassis (41) rotatably;
the elastic net (43) is rotatably connected on the surface of the driving shaft (42), and the elastic net (43) is positioned at the opening;
a controller for controlling the operation of the tennis trainer;
a tensioning device (44) is fixedly connected inside the machine shell (41), the tensioning device (44) comprises a support and a tensioning wheel, the tensioning wheel is in contact with the elastic net (43), and the tensioning device (44) is used for adjusting the tensioning force of the surface of the elastic net (43);
the base (4) is fixedly connected with the bottom of the rack (1) through a first expansion piece (45), and the bottom of the shell (41) is fixedly connected with the upper surface of the base (4) through a second expansion piece (46);
and a hinge device (461) is arranged between the second expansion piece (46) and the bottom of the machine shell (41), one end of the hinge device (461) is fixedly connected with the end part of the second expansion piece (46) through a hinge, and the other end of the hinge device (461) is connected with the bottom of the machine shell (41) in a sliding manner through a hinge.
2. The multi-angle adjustable intelligent tennis trainer of claim 1, wherein: the elastic net (43) is formed by splicing a plurality of sections of net materials, and the elastic net (43) comprises a first net (431), a second net (432) and a third net (433).
3. The multi-angle adjustable intelligent tennis trainer of claim 2, wherein: the mesh materials of the first mesh (431), the second mesh (432) and the third mesh (433) are different from each other.
4. The multi-angle adjustable intelligent tennis trainer of claim 3, wherein: the surface of the second mesh (432) is fixedly connected with a bump (434).
5. The multi-angle adjustable intelligent tennis trainer of claim 4, wherein: the cross-sectional shape of the projection (434) is configured to be semicircular.
6. The multi-angle adjustable intelligent tennis trainer of claim 5, wherein: the lug (434) is connected with the surface of the second mesh (432) through a magic tape (435).
7. The multi-angle adjustable intelligent tennis training aid of claim 6, wherein: the distance between the convex blocks (434) is larger or smaller than the diameter size of the tennis ball.
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| CN202210347118.6A CN114699755B (en) | 2022-04-01 | 2022-04-01 | Intelligent tennis training ware is adjusted to multi-angle |
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| CN202210347118.6A CN114699755B (en) | 2022-04-01 | 2022-04-01 | Intelligent tennis training ware is adjusted to multi-angle |
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| CN114699755A CN114699755A (en) | 2022-07-05 |
| CN114699755B true CN114699755B (en) | 2023-03-14 |
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| US11691065B1 (en) * | 2021-08-18 | 2023-07-04 | Mario Llano | Tennis practice apparatus |
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| CN201701716U (en) * | 2010-06-21 | 2011-01-12 | 山东三铭国际机械有限公司 | Tennis trainer main device and reflecting device used in cooperation with main device |
| KR101354922B1 (en) * | 2012-07-19 | 2014-01-22 | 주식회사 더 테니스 | Tennis swing machine for exercising |
| CN107754256A (en) * | 2016-08-23 | 2018-03-06 | 梅子和 | A kind of tennis wall for possessing different bounce-back areas |
| CN107754282A (en) * | 2016-08-23 | 2018-03-06 | 李阳波 | A kind of sun-proof tennis wall |
| CN109512641A (en) * | 2018-12-25 | 2019-03-26 | 南阳医学高等专科学校第二附属医院(南阳市中西医结合医院) | Nursing in neurology moves bracket |
| CN209612167U (en) * | 2019-02-28 | 2019-11-12 | 运城学院 | A kind of single training tennis circulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150986A (en) * | 2020-02-03 | 2020-05-15 | 深圳市东之星电子科技有限公司 | Tennis training device and tennis training system |
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- 2022-04-01 CN CN202210347118.6A patent/CN114699755B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201701716U (en) * | 2010-06-21 | 2011-01-12 | 山东三铭国际机械有限公司 | Tennis trainer main device and reflecting device used in cooperation with main device |
| KR101354922B1 (en) * | 2012-07-19 | 2014-01-22 | 주식회사 더 테니스 | Tennis swing machine for exercising |
| CN107754256A (en) * | 2016-08-23 | 2018-03-06 | 梅子和 | A kind of tennis wall for possessing different bounce-back areas |
| CN107754282A (en) * | 2016-08-23 | 2018-03-06 | 李阳波 | A kind of sun-proof tennis wall |
| CN109512641A (en) * | 2018-12-25 | 2019-03-26 | 南阳医学高等专科学校第二附属医院(南阳市中西医结合医院) | Nursing in neurology moves bracket |
| CN209612167U (en) * | 2019-02-28 | 2019-11-12 | 运城学院 | A kind of single training tennis circulator |
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