CN220026051U - Tennis trainer is used in sports class - Google Patents

Abstract

The utility model discloses a tennis training device for a physical education course, which comprises a base, wherein a transmission chamber is arranged in the base, a low-speed motor is arranged at the lower end of the base, the tail end of an output shaft of the low-speed motor extends into the transmission chamber and is fixedly connected with a rotating gear, a rotating rod is vertically arranged in the transmission chamber, two ends of the rotating rod are rotatably connected with the inner top and the inner bottom of the transmission chamber, an incomplete gear matched with the rotating gear is arranged on the rotating rod, the lower end of the rotating rod is elastically connected with the inner bottom of the transmission chamber through a torsion spring, and the upper end of the rotating rod extends to the outside and is fixedly connected with a turntable. When the device is used, the automatic service device is driven to swing by utilizing the low-speed motor, so that tennis can be shot to any position of a opponent court, students need to run to take the ball, the training effect on the students is improved, meanwhile, the pipeline can be switched for reuse after the design of the tennis in one of the ball frames is finished, and waiting time is reduced.

Description

Tennis trainer is used in sports class

Technical Field

The utility model relates to the technical field of sports equipment, in particular to a tennis training device for a physical education course.

Background

Tennis is a ball game, and is usually carried out between two single players or two pairs of combinations, and players hit tennis with tennis rackets on a tennis court through a net, and in the process of tennis teaching, an automatic service device is usually used for training students, however, the following problems still exist in the use of the existing automatic service device:

the existing automatic service device is used for placing tennis balls in a tennis frame, the tennis balls are shot to opposite courses through the automatic service device, however, the shooting direction of the existing automatic service device is fixed, so that students can finish the hitting of the tennis balls after standing at a specific position, the teaching effect is poor, meanwhile, after the tennis balls in each tennis frame are shot, the tennis balls are required to be collected again and then placed in the tennis frame for reuse, and the waiting time in the middle is long, so that the problem is reasonably solved.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a tennis training device for a sports class, which is used for driving an automatic service device to swing by utilizing a low-speed motor when in use, so that tennis can be shot to any position of a opponent court, students can need to run to catch the tennis, the training effect on the students is improved, meanwhile, after the design of the intranet ball in one ball frame is finished, the pipeline can be switched to be used again, and the waiting time is shortened.

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

the utility model provides a tennis trainer for sports class, includes the base, be equipped with the drive chamber in the base, low-speed motor is installed to the lower extreme of base, low-speed motor's output shaft end extends to in the drive chamber and fixedly connected with rotation gear, the vertical bull stick that is equipped with in the drive chamber, the both ends and the interior top and the interior bottom of drive chamber of bull stick rotate to be connected, be equipped with on the bull stick with rotation gear matched with incomplete gear, the lower extreme and the interior bottom of drive chamber of bull stick pass through torsional spring elastic connection, the upper end of bull stick extends to external and fixedly connected with carousel, the transmitter is installed to the upper end of carousel.

Preferably, the second friction plate is arranged on the rotating rod, and the first friction plate matched with the second friction plate is arranged at the inner top of the transmission chamber.

Preferably, a vertical pipe is arranged above the transmitting end of the transmitter, the lower end of the vertical pipe is communicated with the transmitting end, the upper end of the vertical pipe is fixedly connected with a placing table, and two placing frames are symmetrically arranged above the placing table.

Preferably, the placing table is internally provided with a sliding cavity, a stop block is arranged in the sliding cavity and is in sliding connection with the inner wall of the sliding cavity, the right side of the stop block is provided with a connecting rod, the right side of the connecting rod extends to the outside and is fixedly connected with a pull handle, and two bevel ports are symmetrically arranged on the stop block.

Preferably, the bottom spaces of the two placing frames are communicated with the top space of the sliding cavity through ball falling openings, and the upper ends of the vertical pipes are communicated with the bottom space of the sliding cavity.

Preferably, a plurality of support columns are arranged at the lower end of the base.

Compared with the prior art, the device has the advantages that:

1. compared with the prior art, in the training process, the rotary table can drive the transmitter to swing through the operation of the low-speed motor, so that tennis balls can be transmitted to any position of a corresponding court, and the training effect on students is improved;

2. compared with the prior art, when carrying out tennis training, after the tennis in the frame of placing that is located the left side used up, can stimulate the pulling handle, the tennis in the frame of placing that is located the right side this moment can be launched through the transmitter, can add the tennis in the frame of placing that is located the left side simultaneously to shorten the latency of training, promote training effect.

Drawings

Fig. 1 is a schematic structural view of a tennis training device for a physical education course according to the present utility model;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1.

In the figure: 1 a base, 2 support columns, 3 a transmission chamber, 4 torsion springs, 5 a low-speed motor, 6 a rotating gear, 7 a transmitter, 8 a vertical pipe, 9 a placing frame, 10 a placing table, 11 a ball falling port, 12 a sliding cavity, 13 a stop block, 14 a bevel port, 15 a first friction plate, 16 a second friction plate, 17 a rotating rod and 18 a rotating disc.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, a tennis trainer for sports lessons, including base 1, the lower extreme of base 1 is equipped with a plurality of support columns 2, be equipped with driving chamber 3 in the base 1, low-speed motor 5 is installed to the lower extreme of base 1, the output shaft end of low-speed motor 5 extends to driving chamber 3 in and fixedly connected with rotation gear 6, vertically be equipped with bull stick 17 in the driving chamber 3, the both ends and the interior top and the interior bottom rotation of driving chamber 3 of bull stick 17 are connected, be equipped with the incomplete gear with rotation gear 6 matched with on the bull stick 17, the lower extreme and the interior bottom of driving chamber 3 pass through torsional spring 4 elastic connection, the upper end of bull stick 17 extends to the external world and fixedly connected with carousel 18, the transmitter 7 is installed to the upper end of carousel 18, through rotation gear 6 and incomplete gear's setting for carousel 18 drives the swing scope of transmitter 7 and is sixty degrees.

The second friction plate 16 is arranged on the rotating rod 17, the first friction plate 15 matched with the second friction plate 16 is arranged at the inner top of the transmission chamber 3, and the first friction plate 15 and the second friction plate 16 can mutually rub, so that the rotation speed of the rotating rod 17 is reduced.

Wherein, standpipe 8 is installed to the top of the transmitting end of transmitter 7, standpipe 8's lower extreme and transmitting end intercommunication, standpipe 8's upper end fixedly connected with places the platform 10, place the top symmetry of platform 10 and be equipped with two and place frame 9, be equipped with smooth chamber 12 in placing the platform 10, be equipped with dog 13 in the smooth chamber 12, dog 13 and the inner wall sliding connection of smooth chamber 12, dog 13's right side is equipped with the connecting rod, the right side of connecting rod extends to the external world and fixedly connected with pull handle, the symmetry is equipped with two bevel connection 14 on the dog 13, two bottom spaces of placing the frame 9 and the headspace of smooth chamber 12 are through falling ball mouth 11 intercommunication, standpipe 8's upper end and the bottom space intercommunication of smooth chamber 12.

The utility model can explain its functional principle by the following modes of operation: in the tennis training process, the launcher 7 and the low-speed motor 5 are started, meanwhile, the left ball falling port 11 and the vertical pipe 8 are communicated by the bevel 14, and at the moment, tennis balls in the left placing frame 9 can enter the launching barrel of the launcher 7 to be launched;

meanwhile, the running of the low-speed motor 5 can enable the rotating gear 6 to rotate, when the rotating gear 6 is meshed with the incomplete gear, the rotating gear 6 can drive the incomplete gear to rotate at the moment, so that the turntable 18 and the emitter 7 are driven to rotate, when the incomplete gear is not meshed with the rotating gear 6, the rotating rod 17 drives the turntable 18 to move back under the elastic force of the torsion spring 4 at the moment, and the rotating speed of the rotating rod 17 is not too high due to the resistance between the first friction plate 15 and the second friction plate 16, so that tennis balls can be shot to different positions along with the running of the low-speed motor 5, so that the students run during training, and the training effect is improved;

after the tennis ball of placing frame 9 that is located the left side finishes using, can pull the pull handle right this moment for dog 13 moves to the right, thereby it is that bevel connection 14 will be located the ball mouth 11 and the standpipe 8 on the right side that make to be located the right side, can use transmitter 7 again to carry out tennis training this moment, can add the tennis in placing frame 9 that is located the left side simultaneously, thereby the use of being convenient for next time.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. Tennis trainer is used in sports class, including base (1), its characterized in that: be equipped with drive chamber (3) in base (1), low-speed motor (5) are installed to the lower extreme of base (1), the output shaft end of low-speed motor (5) extends to in drive chamber (3) and fixedly connected with rotation gear (6), vertically be equipped with bull stick (17) in drive chamber (3), the both ends and the interior top and the interior bottom rotation of drive chamber (3) of bull stick (17) are connected, be equipped with on bull stick (17) with rotation gear (6) matched with incomplete gear, the lower extreme of bull stick (17) passes through torsional spring (4) elastic connection with the interior bottom of drive chamber (3), the upper end of bull stick (17) extends to external world and fixedly connected with carousel (18), transmitter (7) are installed to the upper end of carousel (18).

2. A tennis training device for sports lessons as claimed in claim 1, wherein: the rotary rod (17) is provided with a second friction plate (16), and the inner top of the transmission chamber (3) is provided with a first friction plate (15) matched with the second friction plate (16).

3. A tennis training device for sports lessons as claimed in claim 1, wherein: the vertical pipe (8) is installed above the transmitting end of the transmitter (7), the lower end of the vertical pipe (8) is communicated with the transmitting end, the upper end of the vertical pipe (8) is fixedly connected with the placing table (10), and two placing frames (9) are symmetrically arranged above the placing table (10).

4. A tennis training device for sports lessons as claimed in claim 3, wherein: the novel sliding table is characterized in that a sliding cavity (12) is arranged in the placing table (10), a stop block (13) is arranged in the sliding cavity (12), the stop block (13) is in sliding connection with the inner wall of the sliding cavity (12), a connecting rod is arranged on the right side of the stop block (13), the right side of the connecting rod extends to the outside and is fixedly connected with a pull handle, and two bevel ports (14) are symmetrically arranged on the stop block (13).

5. The tennis training device for a physical lesson according to claim 4 wherein: the bottom spaces of the two placing frames (9) are communicated with the top space of the sliding cavity (12) through a ball falling opening (11), and the upper end of the vertical pipe (8) is communicated with the bottom space of the sliding cavity (12).

6. A tennis training device for sports lessons as claimed in claim 1, wherein: the lower end of the base (1) is provided with a plurality of support columns (2).