Auxiliary equipment for volleyball spiking training

Abstract

The invention discloses auxiliary equipment for volleyball spiking training, and belongs to the technical field of sports equipment, the auxiliary equipment comprises a volleyball net and first telescopic rods arranged at the two ends of the volleyball net, a square frame cylinder is arranged above the volleyball net, the inner wall of the square frame cylinder is fixedly communicated with a group of rubber pipes, and the outer surface of each rubber pipe is fixedly connected with an annular block. According to the device, an athlete continuously spikes the interior of the motor, volleyballs can pass through the two rubber pipes or the space between the rubber pipes and the square frame cylinder, the spiking strength is exercised, the bounce route of the volleyballs is more difficult to pre-judge through the annular blocks, the competition spiking scene is truly simulated, the secondary spiking difficulty is improved, and the playing experience is improved. A motor works to enable a piston rod to be in contact with the outer surface of an abutting block and reset under the arrangement of a telescopic spring, so that the air pressure in a square frame barrel is continuously increased, a rubber pipe communicated with the square frame barrel is continuously expanded, the force needed by deformation of the rubber pipe is increased, and therefore the training of the spiking force is improved, and the training effect of the device on spiking is better.

Description

Technical Field

[0001] The invention belongs to the technical field of sports equipment, and in particular relates to an auxiliary device for volleyball spiking training. Background Art

[0002] Volleyball is not only a sport of great competitive value and enjoyment, but also has a positive effect on physical health and teamwork. In volleyball training, spiking is a crucial technical move that requires athletes to master and improve through a lot of practice.

[0003] Spiking force refers to the force that a volleyball player applies to the ball when spiking. The magnitude of the spiking force directly affects the flight speed, angle and landing point of the ball, and is one of the key factors that determine the offensive effect in a volleyball game. In addition, the rebound of the hitter after a volleyball spike also tests the athlete's secondary spiking ability. Secondary spiking training refers to the defense, organization, and spiking attack training in series after the ball is blocked after the spike. Existing spiking training auxiliary devices are difficult to train athletes' spiking force and secondary spiking, resulting in poor spiking training effects on athletes. Summary of the invention

[0004] The purpose of the present invention is to propose a volleyball spiking training auxiliary device in order to solve the problem that the existing spiking training auxiliary device is difficult to train the athlete's spiking strength and secondary spiking, resulting in poor spiking training effect on the athlete.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A volleyball spiking training auxiliary device comprises a volleyball net and a first telescopic rod arranged at both ends of the volleyball net, a square frame tube is arranged above the volleyball net, the inner wall of the square frame tube is fixedly connected to a group of rubber tubes, the outer surface of each rubber tube is fixedly connected to an annular block, the left and right sides of the square frame tube are fixedly connected to a first piston tube through a second one-way valve, the piston rods slidably connected to the inner walls of the two first piston tubes are fixedly connected to a group of telescopic springs, the outer surfaces of the two first piston tubes are fixedly connected to the first one-way valve, the inner wall of the nut fixedly connected to the back of the square frame tube is threadedly connected to a reciprocating screw, one end of the reciprocating screw is fixedly connected to a motor, and the other end of the reciprocating screw is rotatably connected to the outer surface of the first telescopic rod.

[0007] As a further description of the above technical solution:

[0008] One end of the telescopic spring away from the piston rod is fixedly connected to the inner wall of the first piston cylinder, the outlet end of the second one-way valve is connected to the interior of the square cylinder, and the inlet end of the second one-way valve and the outlet end of the first one-way valve are both connected to the interior of the first piston cylinder, the inlet end of the first one-way valve is connected to the outside, and the outer surfaces of the two first telescopic rods are fixedly connected with a stop block.

[0009] As a further description of the above technical solution:

[0010] A pair of limiting rings are fixedly connected to the lower part of the back side of the square frame tube, and two ends of a limiting rod slidably connected to the inner walls of the two limiting rings are respectively fixedly connected to the outer surface of a first telescopic rod.

[0011] As a further description of the above technical solution:

[0012] The motor is fixedly connected to the outer surface of the first telescopic rod, the output end of the motor passes through the first telescopic rod and is fixedly connected to one end of the reciprocating screw rod, and the output end of the motor does not contact the penetration point of the first telescopic rod, and the outer surface of the square frame tube is threadedly connected with a threaded rubber plug.

[0013] As a further description of the above technical solution:

[0014] The outer surface of the square frame cylinder is fixedly connected to the second piston cylinder, the upper surface of the piston plate slidably connected to the inner wall of the second piston cylinder is fixedly connected to the compression spring, and the outer surface of the second piston cylinder is fixedly connected to the whistle.

[0015] As a further description of the above technical solution:

[0016] An electric telescopic rod is fixedly connected to the upper surface of the second piston cylinder, and the output end of the electric telescopic rod passes through the interior of the second piston cylinder and is fixedly connected to a stop plate arranged on the inner wall of the second piston cylinder. The output end of the electric telescopic rod does not contact the penetration point of the second piston cylinder, and the upper end of the compression spring is fixedly connected to the bottom surface of the stop plate.

[0017] As a further description of the above technical solution:

[0018] A second telescopic rod is fixedly connected to the upper surface of the piston plate, and the upper end of the second telescopic rod passes through the compression spring and is fixedly connected to the bottom surface of the abutment plate.

[0019] As a further description of the above technical solution:

[0020] A straight plate is fixedly connected to the outer surface of the first telescopic rod, two ends of the volleyball net are fixedly connected to the front of the straight plate, and the back of the volleyball net does not contact the outer surfaces of the square tube, rubber tube and annular block.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] In the present invention, athletes can continuously spike the volleyball into the motor so that the volleyball can pass through the space between the two rubber tubes or the rubber tube and the square tube, thereby exercising the strength of the spike. When the spike strength is relatively small, under the action of the annular block, the difficulty of the volleyball passing through the space between the two rubber tubes or the rubber tube and the square tube is increased, and the rebound route of the volleyball is more difficult to predict, thereby truly simulating the spike scene in the game and increasing the difficulty of the secondary spike. When the motor works, the piston rod contacts the outer surface of the block, and the piston rod is reset under the setting of the telescopic spring, so that the air pressure inside the square tube is continuously increased, and the rubber tube connected to the square tube is continuously expanded, thereby increasing the strength required for the rubber tube to deform, thereby increasing the training of the spike strength, and making the device more effective in training the spike. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view structural diagram of an auxiliary device for volleyball spiking training proposed by the present invention;

[0024] Figure 2 This is a right view structural schematic diagram of a volleyball spiking training auxiliary device proposed by the present invention;

[0025] Figure 3 This is a front view cross-sectional structural diagram of a square frame tube of an auxiliary device for volleyball spiking training proposed by the present invention;

[0026] Figure 4 This is a rear view structural diagram of a square frame tube of an auxiliary device for volleyball spiking training proposed by the present invention;

[0027] Figure 5 Auxiliary equipment for volleyball spiking training proposed by the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 6 Auxiliary equipment for volleyball spiking training proposed by the present invention Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0029] Legend: 1. Volleyball net; 2. First telescopic rod; 3. Frame tube; 4. Rubber tube; 5. Ring block; 6. First piston cylinder; 7. Piston rod; 8. Telescopic spring; 9. First non-return valve; 10. Second non-return valve; 11. Nut; 12. Reciprocating screw; 13. Motor; 14. Stop block; 15. Limit ring; 16. Limit rod; 17. Threaded rubber plug; 18. Second piston cylinder; 19. Piston plate; 20. Compression spring; 21. Whistle; 22. Electric telescopic rod; 23. Stop plate; 24. Second telescopic rod; 25. Straight plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-6 The present invention provides a technical solution: an auxiliary device for volleyball spiking training, comprising a volleyball net 1 and a first telescopic rod 2 arranged at both ends of the volleyball net 1, the outer surface of the first telescopic rod 2 is fixedly connected with a straight plate 25, the two ends of the volleyball net 1 are fixedly connected to the front of the straight plate 25, the straight plate 25 is arranged to provide a favorable space for the expansion of the rubber tube 4, and prevent the subsequent rubber tube 4 or the annular block 5 from rubbing against the outer surface of the volleyball net 1, a square frame tube 3 is arranged above the volleyball net 1, the square frame tube 3 is a square frame with a cavity opened inside, the outer surface of the square frame tube 3 is threadedly connected with a threaded rubber plug 17, and the threaded rubber plug 17 mainly consists of a rubber body and a threaded part The rubber body is usually made of natural rubber, synthetic rubber or other elastic materials, and has good sealing and corrosion resistance. The working principle of the threaded rubber plug 17 is mainly to use the pre-tightening force generated by the threaded connection to press the rubber plug against the hole or gap of the connector to achieve sealing. When the threaded rubber plug 17 is tightened, the rubber material will be compressed and deformed to fill the tiny gap of the hole or gap, thereby preventing the leakage of fluid or gas. The threaded rubber plug 17 can be rotated so that the inside of the square tube 3 is depressurized in a way that the threaded rubber plug 17 does not contact the outer surface of the square tube 3, thereby reducing the pressure on the rubber tube 4 and resetting it.

[0032] The inner wall of the square tube 3 is fixedly connected with a group of rubber tubes 4. The deformation of the two rubber tubes 4 can make the volleyball pass through and can also rebound the volleyball. When the air pressure inside the rubber tube 4 continues to increase and expand, the distance between the two rubber tubes 4 and the square tube 3 decreases, and the elastic force of the rubber tube 4 also increases accordingly. The outer surface of each rubber tube 4 is fixedly connected with an annular block 5. The back of the volleyball net 1 does not contact the outer surfaces of the square tube 3, the rubber tube 4 and the annular block 5, so as to prevent the square tube 3, the rubber tube 4 and the annular block 5 from generating friction with the outer surface of the volleyball net 1. The left and right sides of the square tube 3 are fixedly connected with the first piston tube 6 through the second one-way valve 10. The piston rods 7 slidably connected to the inner walls of the two first piston tubes 6 are fixedly connected with a group of telescopic springs 8. The end of the telescopic spring 8 away from the piston rod 7 is fixedly connected to the inner wall of the first piston tube 6. Figure 3 and Figure 5The telescopic springs 8 are all in a natural state, and the telescopic springs 8 provide a reset effect on the piston rod 7. The outer surfaces of the two first piston cylinders 6 are fixedly connected with the first one-way valves 9, and the outlet end of the second one-way valve 10 is connected to the interior of the square cylinder 3, and the inlet end of the second one-way valve 10 and the outlet end of the first one-way valve 9 are both connected to the interior of the first piston cylinder 6, and the inlet end of the first one-way valve 9 is connected to the outside.

[0033] The outer surfaces of the two first telescopic rods 2 are fixedly connected with a stop block 14, and the stop block 14 and the piston rod 7 are located in the same vertical plane, ensuring the flow direction of the air inside the first piston cylinder 6, that is, when the piston rod 7 moves left and right on the inner wall of the first piston cylinder 6, the external air flows to the interior of the square cylinder 3 through the first one-way valve 9, the first piston cylinder 6 and the second one-way valve 10. The inner wall of the nut 11 fixedly connected to the back of the square cylinder 3 is threadedly connected with a reciprocating screw 12. The working principle of the reciprocating screw 12 is similar to that of a thread pair. It is mainly composed of a screw and a nut 11. The screw is inlaid with a spiral thread, and the nut 11 is a corresponding thread groove. When the screw is rotated, the nut 11 will move along the axial direction of the screw, thereby realizing linear motion. This movement mode enables the reciprocating screw 12 to convert rotational motion into linear motion. The motor 13 is fixedly connected to the outer surface of the first telescopic rod 2, and the nut 11 threadedly connected to the outer surface of the reciprocating screw 12 drives the square tube 3 to move back and forth.

[0034] The athlete continuously spikes the ball into the motor 13 so that the volleyball can pass through the space between the two rubber tubes 4 or the rubber tube 4 and the square tube 3, thereby exercising the strength of the spike. When the spike strength is small, making it difficult for the volleyball to pass through the space between the two rubber tubes 4 or the rubber tube 4 and the square tube 3, the deformation elastic force of the rubber tube 4 can rebound the volleyball, and the athlete can spike the rebounded ball for the second time. Under the action of the annular block 5 provided on the outer surface of the rubber tube 4, the difficulty of the volleyball passing through the space between the two rubber tubes 4 or the rubber tube 4 and the square tube 3 is increased, and the rebound route of the volleyball is more difficult to be predicted, thereby increasing the difficulty of the second spike. When the motor 13 is working, its output end drives the reciprocating The screw rod 12 rotates, and the nut 11 threadedly connected to the outer surface of the reciprocating screw rod 12 drives the square tube 3 to reciprocate left and right on the outer surface of the reciprocating screw rod 12. During the process, the piston rod 7 contacts the outer surface of the stop block 14, and the piston rod 7 is reset under the setting of the telescopic spring 8, so that the piston rod 7 reciprocates left and right on the inner wall of the first piston tube 6, and the external air flows into the interior of the square tube 3 through the first one-way valve 9, the first piston tube 6 and the second one-way valve 10. The air pressure inside the square tube 3 continues to increase, so that the rubber tube 4 connected to the square tube 3 continues to expand, increasing the force required for the deformation of the rubber tube 4, thereby increasing the training of the spiking force, so that the device has a better training effect on spiking.

[0035] The outer surface of the square cylinder 3 is fixedly connected to the second piston cylinder 18, and the upper surface of the piston plate 19 slidably connected to the inner wall of the second piston cylinder 18 is fixedly connected to the compression spring 20, and the upper surface of the piston plate 19 is fixedly connected to the second telescopic rod 24, and the upper end of the second telescopic rod 24 passes through the compression spring 20 and is fixedly connected to the bottom surface of the abutment plate 23. The setting of the second telescopic rod 24 limits the up and down movement of the piston plate 19 on the inner wall of the second piston cylinder 18, and prevents the piston plate 19 from tilting when moving up and down on the inner wall of the second piston cylinder 18. The outer surface of the second piston cylinder 18 is fixedly connected to a whistle 21. The whistle 21 is a small sound-making tool, which is usually used in sports competitions, outdoor activities, emergency rescue and other occasions to make a loud sound to attract people's attention or give commands. The working principle of the whistle 21 is to vibrate the airflow in a specific structure inside the whistle 21 to generate sound. Different whistle 21 structures will produce different sound effects, such as volume, tone, etc. The internal air pressure of the square cylinder 3 continues to increase, so that the piston plate 19 inside the second piston cylinder 18 continues to move upward. When the piston plate 19 moves to the oblique upper part of the whistle 21, the air inside the second piston cylinder 18 can flow out through the whistle 21. The whistle sound emitted by the whistle 21 can remind the athletes that the training time has been completed, while preventing damage caused by excessive air pressure inside the rubber tube 4. An electric telescopic rod 22 is fixedly connected to the upper surface of the second piston cylinder 18. The output end of the electric telescopic rod 22 penetrates into the second piston cylinder 18 and is fixedly connected to a plate 23 arranged on the inner wall of the second piston cylinder 18, and the output end of the electric telescopic rod 22 does not contact the penetration point of the second piston cylinder 18. The upper end of the compression spring 20 is fixedly connected to the bottom surface of the plate 23. The output end of the electric telescopic rod 22 can drive the plate 23 to move up and down inside the second piston cylinder 18, adjust the initial elastic force of the compression spring 20, that is, adjust the force required for the piston plate 19 to move upward, thereby adjusting the maximum air pressure value inside the square cylinder 3 and the rubber tube 4.

[0036] Working principle: When in use, the motor 13 is connected to the power supply, and the athlete continuously spikes the ball into the motor 13 so that the volleyball can pass through the space between the two rubber tubes 4 or the rubber tube 4 and the square tube 3, thereby exercising the strength of the spike. When the spike strength is small, it is difficult for the volleyball to pass through the space between the two rubber tubes 4 or the rubber tube 4 and the square tube 3. The deformation elastic force of the rubber tube 4 can rebound the volleyball, and the athlete can perform a second spike on the rebounded ball. Under the action of the annular block 5 provided on the outer surface of the rubber tube 4, it is more difficult for the volleyball to pass through the space between the two rubber tubes 4 or the rubber tube 4 and the square tube 3, and it is also more difficult to predict the rebound route of the volleyball, thereby increasing the difficulty of the second spike. The motor 13 works During operation, its output end drives the reciprocating screw 12 to rotate, and the nut 11 threadedly connected to the outer surface of the reciprocating screw 12 drives the square tube 3 to move back and forth on the outer surface of the reciprocating screw 12. During the process, the piston rod 7 contacts the outer surface of the stop block 14, and the piston rod 7 is reset under the setting of the telescopic spring 8, so that the piston rod 7 moves back and forth on the inner wall of the first piston tube 6, and the external air flows into the interior of the square tube 3 through the first one-way valve 9, the first piston tube 6 and the second one-way valve 10. The air pressure inside the square tube 3 continues to increase, so that the rubber tube 4 connected to the square tube 3 continues to expand, increasing the force required for the deformation of the rubber tube 4, thereby increasing the training of the spiking force, so that the device has a better training effect on spiking.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An auxiliary device for volleyball spiking training, comprising a volleyball net (1) and a first telescopic rod (2) arranged at both ends of the volleyball net (1), characterized in that: A square frame tube (3) is arranged above the volleyball net (1). The inner wall of the square frame tube (3) is fixedly connected to a group of rubber tubes (4). The outer surface of each rubber tube (4) is fixedly connected to a ring block (5). The left and right sides of the square frame tube (3) are fixedly connected to a first piston tube (6) through a second one-way valve (10). The piston rods (7) slidably connected to the inner walls of the two first piston tubes (6) are fixedly connected to a group of telescopic springs (8). The outer surfaces of the two first piston tubes (6) are fixedly connected to a first one-way valve (9). The inner wall of a nut (11) fixedly connected to the back of the square frame tube (3) is threadedly connected to a reciprocating screw rod (12). One end of the reciprocating screw rod (12) is fixedly connected to a motor (13), and the other end of the reciprocating screw rod (12) is rotatably connected to the outer surface of the first telescopic rod (2).

2. The auxiliary equipment for volleyball spiking training according to claim 1, characterized in that: The end of the telescopic spring (8) away from the piston rod (7) is fixedly connected to the inner wall of the first piston cylinder (6), the outlet end of the second one-way valve (10) is connected to the interior of the square cylinder (3), and the inlet end of the second one-way valve (10) and the outlet end of the first one-way valve (9) are both connected to the interior of the first piston cylinder (6), the inlet end of the first one-way valve (9) is connected to the outside, and the outer surfaces of the two first telescopic rods (2) are fixedly connected with a stop block (14).

3. The auxiliary equipment for volleyball spiking training according to claim 1, characterized in that: A pair of limiting rings (15) are fixedly connected to the lower part of the back side of the square frame tube (3), and the two ends of a limiting rod (16) slidably connected to the inner walls of the two limiting rings (15) are respectively fixedly connected to the outer surface of a first telescopic rod (2).

4. The auxiliary equipment for volleyball spiking training according to claim 1, characterized in that: The motor (13) is fixedly connected to the outer surface of the first telescopic rod (2); the output end of the motor (13) passes through the first telescopic rod (2) and is fixedly connected to one end of the reciprocating screw rod (12); the output end of the motor (13) does not contact the penetration point of the first telescopic rod (2); and the outer surface of the square frame tube (3) is threadedly connected to a threaded rubber plug (17).

5. The auxiliary equipment for volleyball spiking training according to claim 1, characterized in that: The outer surface of the square cylinder (3) is fixedly connected to a second piston cylinder (18), the upper surface of a piston plate (19) slidably connected to the inner wall of the second piston cylinder (18) is fixedly connected to a compression spring (20), and the outer surface of the second piston cylinder (18) is fixedly connected to a whistle (21).

6. The auxiliary equipment for volleyball spiking training according to claim 5, characterized in that: An electric telescopic rod (22) is fixedly connected to the upper surface of the second piston cylinder (18); the output end of the electric telescopic rod (22) penetrates into the interior of the second piston cylinder (18) and is fixedly connected to a stop plate (23) provided on the inner wall of the second piston cylinder (18); the output end of the electric telescopic rod (22) does not contact the penetration point of the second piston cylinder (18); and the upper end of the compression spring (20) is fixedly connected to the bottom surface of the stop plate (23).

7. The auxiliary equipment for volleyball spiking training according to claim 6, characterized in that: A second telescopic rod (24) is fixedly connected to the upper surface of the piston plate (19); the upper end of the second telescopic rod (24) passes through the compression spring (20) and is fixedly connected to the bottom surface of the abutment plate (23).

8. The auxiliary equipment for volleyball spiking training according to claim 1, characterized in that: A straight plate (25) is fixedly connected to the outer surface of the first telescopic rod (2), the two ends of the volleyball net (1) are fixedly connected to the front of the straight plate (25), and the back of the volleyball net (1) is not in contact with the outer surfaces of the square frame tube (3), the rubber tube (4) and the annular block (5).

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