CN114712828A

CN114712828A - Automatic volleyball serving device for physical training

Info

Publication number: CN114712828A
Application number: CN202210546212.4A
Authority: CN
Inventors: 杨静; 吴高婷
Original assignee: Xian Jiaotong University City College
Current assignee: Xian Jiaotong University City College
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-07-08
Anticipated expiration: 2042-05-19
Also published as: CN114712828B

Abstract

The invention discloses an automatic volleyball serving device for physical training, and belongs to the technical field of sports equipment. This automatic device of serving of volleyball for sports training includes: the upper surface of the base is fixedly provided with the lower end of a ball-making barrel, and the upper end of the ball-making barrel is connected with the lower end of an arc-shaped guide barrel; the bottom wall of the inner side of the pitching barrel is provided with an electric push rod; the angle adjusting structure comprises a first vertical rod, an electric telescopic rod and an arc plate, the lower end of the first vertical rod is fixed on the outer arc wall of the arc guide cylinder, the upper end of the first vertical rod is hinged with one end of the electric telescopic rod, the other end of the electric telescopic rod is hinged with the outer arc surface of the arc plate, the arc plate is arranged in a notch formed in the outer arc surface at the upper end of the arc guide cylinder, and the bottom wall of the notch is hinged with the end surface of the arc plate; the electric telescopic rod and the electric push rod are electrically connected with the controller. The automatic volleyball serving device for the body training avoids the problems that the existing volleyball serving device is single in serving type and cannot send high-quality rotary balls, and improves the training efficiency of volleyball players.

Description

Automatic volleyball serving device for physical training

Technical Field

The invention relates to the technical field of sports equipment, in particular to an automatic volleyball serving device for sports training.

Background

The volleyball is one of ball sports projects, the court is rectangular, a high net is arranged in the middle, two players respectively occupy one side of the court, and the players play the volleyball on the net in an empty way by using hands; the ball used in volleyball sports uses sheepskin or artificial leather as a shell, rubber as a liner, and the size of the ball is similar to that of a football;

in the volleyball training process, besides the co-training mode of two teams of matches, the training mode of special training for catching the volleyball is also adopted, the volleyball needs to be caught at different angles in the process of catching the volleyball, the serving type of the existing volleyball automatic serving device is single, the serving quality is not high, and the training efficiency is influenced.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provides an automatic volleyball serving device for sports training.

The invention provides an automatic volleyball serving device for physical training, which comprises: the upper surface of the base is fixedly provided with the lower end of a ball-making barrel, and the upper end of the ball-making barrel is connected with the lower end of an arc-shaped guide barrel; the bottom wall of the inner side of the pitching barrel is provided with an electric push rod; the angle adjusting structure comprises a first vertical rod, an electric telescopic rod and an arc plate, wherein the lower end of the first vertical rod is fixed on the outer arc wall of the arc guide cylinder, the upper end of the first vertical rod is hinged with one end of the electric telescopic rod, the other end of the electric telescopic rod is hinged with the outer arc surface of the arc plate, the arc plate is arranged in a notch formed in the outer arc surface at the upper end of the arc guide cylinder, and the bottom wall of the notch is hinged with the end surface of the arc plate; the electric telescopic rod and the electric push rod are electrically connected with the controller.

Preferably, the side wall of the service barrel is fixedly provided with a ball storage frame, a ball outlet arranged at the bottom of the ball storage frame is communicated with the inner wall of the service barrel, and the ball storage frame is fixed on the base through a support.

Preferably, the upper end surface of the ball dispensing cylinder is fixedly connected with the lower end surface of the outer ring of the bearing, and the upper end surface of the inner ring of the bearing is fixedly connected with the lower end surface of the arc-shaped guide cylinder; the cambered surface of the outer ring of the bearing is fixedly connected with a gear ring, the gear ring is meshed with a gear, the gear is fixedly connected with an output shaft of a motor, and the motor is fixed on the outer wall of the arc guide cylinder; the motor is electrically connected with the controller.

Preferably, the inner wall of the ball-serving cylinder, the inner wall of the bearing and the inner wall of the arc-shaped guide cylinder are tangent in sequence.

Preferably, the pitching barrel inclines 40 to 85 degrees towards the bending direction of the arc-shaped guide barrel, and the diameter of the inner wall of the upper end part of the arc-shaped guide barrel is larger than that of the inner wall of the lower end part of the arc-shaped guide barrel.

Preferably, a plurality of plate bodies are arranged between the side wall of the notch on the arc guide cylinder and the side wall of the arc plate, a plurality of groups of elastic parts are arranged along the length direction of the arc guide cylinder, each group of elastic parts comprises a plurality of springs, and the side wall of the notch is only connected with the side wall of the plate body, the side wall between two adjacent plate bodies, and the side wall of the plate body and the side wall of the arc plate through the springs.

Compared with the prior art, the invention has the beneficial effects that: the automatic volleyball serving device for sports training disclosed by the invention can be used for cooperatively finishing various flight states of volleyballs by controlling the simultaneous actions of the electric push rod, the electric telescopic rod and the motor, so that the problems that the conventional volleyball serving device is single in serving type and cannot send high-quality rotary balls are solved, and the training efficiency of volleyball players is improved; and a plurality of plate bodies distribute in proper order between the lateral wall of breach and the lateral wall of arc board, and the great drop between the lateral wall of breach and the lateral wall of arc board converts the less drop before a plurality of two adjacent plate bodies into, and the volleyball not only can receive stable frictional force effect when the plate body terminal surface, and the orbit of serving of volleyball is skew less with predetermineeing the orbit moreover, has guaranteed the success rate of serving.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a schematic end view of the arcuate guide cylinder of the present invention;

fig. 4 is an external schematic view of the present invention.

Description of the reference numerals:

1. the ball collecting device comprises a base, 2. a ball distributing cylinder, 3. an arc-shaped guide cylinder, 4. a first vertical rod, 5. an electric telescopic rod, 6. an arc plate, 7. an electric push rod, 8. a ball storage frame, 9. a support, 10. a bearing, 11. a gear ring, 12. a gear, 13. a motor, 14. a plate body and 15. a spring.

Detailed Description

The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The invention provides an automatic volleyball serving device for physical training, which comprises the following components as shown in figure 1: the upper surface of the base 1 is fixedly provided with the lower end of a ball serving barrel 2, and the upper end of the ball serving barrel 2 is connected with the lower end of an arc-shaped guide barrel 3; the bottom wall of the inner side of the pitching barrel 2 is provided with an electric push rod 7; the angle adjusting structure comprises a first vertical rod 4, an electric telescopic rod 5 and an arc plate 6, wherein the lower end of the first vertical rod 4 is fixed on the outer arc wall of the arc guide cylinder 3, the upper end of the first vertical rod 4 is hinged with one end of the electric telescopic rod 5, the other end of the electric telescopic rod 5 is hinged with the outer arc surface of the arc plate 6, the arc plate 6 is arranged in a notch formed in the outer arc surface of the upper end of the arc guide cylinder 3, and the bottom wall of the notch is hinged with the end surface of the arc plate 6; the electric telescopic rod 5 and the electric push rod 7 are electrically connected with the controller.

In placing service cylinder 2 with the volleyball, the action of controller control electric putter 7, realize promoting the volleyball fast, the volleyball rolls along the outside inner wall of arc guide cylinder 3, controller control electric telescopic handle 5 extension or shortens simultaneously, realize that arc 6 rotates, and then change the movement track of volleyball 7, realize multi-angle service, because the volleyball rolls along the outside inner wall of arc guide cylinder 3, therefore the volleyball is when in arc guide cylinder 3, the outside inner wall of volleyball and arc guide cylinder 3 has the friction, consequently have anticlockwise spin after the volleyball is sent, the automatic service device of volleyball for the body training has avoided current service device service type single, can not send the problem of high-quality roating ball, volleyball player's training efficiency has been improved.

Preferably, as shown in fig. 1, a ball storage frame 8 is fixedly arranged on the side wall of the service barrel 2, a ball outlet arranged at the bottom of the ball storage frame 8 is communicated with the inner wall of the service barrel 2, and the ball storage frame 8 is fixed on the base 1 through a support 9.

A plurality of volleyballs are stored in the volleyball storage frame 8, and the volleyballs tend to roll to the bottom of the service barrel 2 all the time due to gravity.

Preferably, as shown in fig. 1-2-4, the upper end surface of the pitching barrel 2 is fixedly connected with the lower end surface of the outer ring of the bearing 10, and the upper end surface of the inner ring of the bearing 10 is fixedly connected with the lower end surface of the arc-shaped guide barrel 3; the cambered surface of the outer ring of the bearing 10 is fixedly connected with a gear ring 11, the gear ring 11 is meshed with a gear 12, the gear 12 is fixedly connected with an output shaft of a motor 13, and the motor 13 is fixed on the outer wall of the arc-shaped guide cylinder 3; the motor 13 is electrically connected with the controller; the inner wall of the pitching barrel 2, the inner wall of the bearing 10 and the inner wall of the arc-shaped guide barrel 3 are tangent in sequence.

In the process of serving, the controller passes through the positive and negative rotation of accuse motor 13, realize that arc guide cylinder 3 rotates around the axis of serving section of thick bamboo 2, when the volleyball is in arc guide cylinder 3, because the rotation of arc guide cylinder 3, the volleyball changes with the friction point position of 3 inner walls of arc guide cylinder, the spin of volleyball also changes, the volleyball also can be thrown out along the tangential of 3 direction of rotation of arc guide cylinder simultaneously, realize more rotation gesture and the motion trail of volleyball, more be favorable to volleyball sportsman to deal with and receive the volleyball of the transmission of more kinds.

Preferably, as shown in fig. 1, the service cylinder 2 is inclined by 40 ° to 85 ° in the bending direction of the arc guide cylinder 3, and the diameter of the inner wall of the upper end of the arc guide cylinder 3 is larger than that of the inner wall of the lower end thereof.

The inclination angle aims at that the volleyball can enter the service cylinder 2 smoothly, and the gradual change diameter of the arc guide cylinder 3 aims at that the arc plate 6 rotates inwards or outwards to ensure that the volleyball flies out of the arc guide cylinder 3.

Preferably, as shown in fig. 1-2-3-4, a plurality of plate bodies 14 are disposed between the side wall of the notch on the arc guide cylinder 3 and the side wall of the arc plate 6, a plurality of sets of elastic members are disposed along the length direction of the arc guide cylinder 3, each set of elastic member includes a plurality of springs 15, and the side wall of the notch and the side wall of the plate body 14, the side wall between two adjacent plate bodies 14, and the side wall of the plate body 14 and the side wall of the arc plate 6 are connected only by the springs 15.

After the arc plate 6 rotates, a cross-section drop is generated between the side wall of the notch on the arc guide cylinder 3 and the side wall of the arc plate 6, when volleyball flies out of the arc guide cylinder 3, due to the existence of the drop, the flying track of the volleyball deviates from a preset track, and successful service cannot be realized, a plurality of plate bodies 14 are designed for this purpose, after the arc plate 6 rotates, the plate bodies pull springs 15, the plate bodies 14 are sequentially distributed between the side wall of the notch and the side wall of the arc plate 6, a large drop between the side wall of the notch and the side wall of the arc plate 6 is converted into a small drop between two adjacent plate bodies 14, when the volleyball passes through the end faces of the plate bodies 14, stable friction force can be applied to the volleyball, the service track of the volleyball deviates from the preset track, and the service success rate is guaranteed.

The use method of the volleyball automatic serving device for sports training comprises the following steps:

firstly, placing a plurality of volleyballs into a volleyball storage frame 8, and placing an automatic volleyball serving device for body training into a proper training field; then, a power supply is switched on, the controller simultaneously controls the electric push rod 7, the electric telescopic rod 5 and the motor 13 to act once according to a certain time interval, the electric push rod 7 is shortened and extended once each time, volleyballs enter the ball serving barrel 2 and are emitted, the electric telescopic rod 5 is randomly extended, and the motor 13 randomly rotates forwards and backwards at a proper angle to change the motion state of the randomly emitted volleyballs; and finally, powering off after training is finished.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic device of serving of volleyball for sports training which characterized in that includes:

the upper surface of the base (1) is fixedly provided with the lower end of the ball serving barrel (2), and the upper end of the ball serving barrel (2) is connected with the lower end of the arc-shaped guide barrel (3); the bottom wall of the inner side of the pitching barrel (2) is provided with an electric push rod (7);

the angle adjusting structure comprises a first vertical rod (4), an electric telescopic rod (5) and an arc plate (6), wherein the lower end of the first vertical rod (4) is fixed on the outer arc wall of the arc guide cylinder (3), the upper end of the first vertical rod (4) is hinged with one end of the electric telescopic rod (5), the other end of the electric telescopic rod (5) is hinged with the outer arc surface of the arc plate (6), the arc plate (6) is arranged in a notch formed in the outer arc surface at the upper end of the arc guide cylinder (3), and the bottom wall of the notch is hinged with the end surface of the arc plate (6); the electric telescopic rod (5) and the electric push rod (7) are electrically connected with the controller.

2. The volleyball automatic serving device for sports training according to claim 1, wherein the side wall of the serving barrel (2) is fixedly provided with a ball storage frame (8), a ball outlet arranged at the bottom of the ball storage frame (8) is communicated with the inner wall of the serving barrel (2), and the ball storage frame (8) is fixed on the base (1) through a bracket (9).

3. The automatic volleyball serving device for sports training according to claim 1, wherein the upper end surface of the serving barrel (2) is fixedly connected with the lower end surface of the outer ring of the bearing (10), and the upper end surface of the inner ring of the bearing (10) is fixedly connected with the lower end surface of the arc-shaped guide barrel (3); the outer ring cambered surface of the bearing (10) is fixedly connected with a gear ring (11), the gear ring (11) is meshed with a gear (12), the gear (12) is fixedly connected with an output shaft of a motor (13), and the motor (13) is fixed on the outer wall of the arc-shaped guide cylinder (3); the motor (13) is electrically connected with the controller.

4. The automatic volleyball serving device for sports training according to claim 3, wherein the inner wall of the serving barrel (2), the inner wall of the bearing (10), and the inner wall of the arc guide barrel (3) are sequentially tangent.

5. The automatic volleyball serving apparatus for sports training according to claim 1, wherein the serving barrel (2) is inclined 40 ° to 85 ° in a bending direction of the arc guide barrel (3), and an inner wall diameter of an upper end portion of the arc guide barrel (3) is larger than an inner wall diameter of a lower end portion thereof.

6. The automatic volleyball serving device for sports training according to claim 1, wherein a plurality of plate bodies (14) are provided between the side wall of the notch of the arc guide cylinder (3) and the side wall of the arc plate (6), a plurality of sets of elastic members are provided along the length direction of the arc guide cylinder (3), each set of elastic members includes a plurality of springs (15), and the side wall of the notch is connected with the side wall of the plate body (14), the side wall between two adjacent plate bodies (14), the side wall of the plate body (14) and the side wall of the arc plate (6) only through the springs (15).