Teaching volleyball serving training device

Abstract

The invention relates to the technical field of volleyball teaching, and discloses a teaching volleyball serving training device which comprises a launching guide cylinder and a supporting base fixedly arranged at the bottom of the launching guide cylinder, a fixing plate is fixedly arranged on the inner wall of the launching guide cylinder, a guide rod is fixedly arranged on one side of the fixing plate, and the rod wall of the guide rod is slidably sleeved with a hitting ball; two symmetrically-arranged push rods are slidably arranged in the supporting plate in a penetrating mode, a push plate is fixedly arranged at the ends, away from the guide rod, of the two push rods, the rod wall of each push rod is sleeved with a first spring, the two ends of each first spring are fixedly connected with the corresponding push rod and the fixing plate correspondingly, and the hitting balls are in contact fit with the ends of the push rods. According to the teaching volleyball serving training device, the hitting ball can fall from different height positions by adjusting the position of the limiting block, the hitting force of the hitting ball on the volleyball is adjusted, and therefore the volleyball can be launched to different height positions, the teaching volleyball serving training device is suitable for serving training of various heights, and the training effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of volleyball teaching, in particular to a volleyball serving training device. Background Art

[0002] In the volleyball teaching process, effective serving training is required, and serving training can improve the physical fitness of players, because serving requires the strength of multiple parts of the body. Through serving training, the player's strength, explosive power and body coordination can be exercised and improved, and at the same time, it can also effectively substitute for other volleyball technical movements.

[0003] After searching, the patent document with the announcement number CN212235909U discloses an automatic serving device for volleyball training for physical education teaching. The serving device drives the half gear to rotate through the motor, and then drives the spur rack and the kit to reciprocate and compress the compression spring, thereby driving the ejection part to continuously eject the volleyball that falls from the ball tube, thereby realizing the automatic serving function. A handle for adjusting the serving angle is fixed on the outer shell of the server, so that the ball can be served from different angles and at different heights. In addition, with the help of universal wheels and rollers, the ball can be served and the entire device can be moved from different directions, and the overall flexibility is high.

[0004] However, when the serving device is in use, the meshing distance between the internal half gear and the spur rack is fixed, resulting in a fixed force with which the ejection member pushes the volleyball each time. As a result, the volleyball can only move to a fixed height after being launched, and it is impossible to adjust a variety of serving heights, resulting in a poor overall training effect of the serving device and reducing the use effect of the device. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a teaching volleyball serving training device which is capable of adjusting the force of hitting the volleyball according to training requirements, so that the volleyball can move to a variety of heights after being launched, thereby achieving a better serving training effect and improving the versatility of the serving device. It solves the problem that when the serving device is in use, the meshing distance between the internal half gear and the spur rack is fixed, resulting in a fixed force for the ejection member to push the volleyball each time, so that the volleyball can only move to a fixed height after being launched, and cannot be adjusted to a variety of serving heights, resulting in poor overall training effect of the serving device.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a teaching volleyball serving training device, comprising a launching guide tube and a supporting base fixedly arranged at the bottom of the launching guide tube, a fixing plate fixedly arranged on the inner wall of the launching guide tube, a guide rod fixedly arranged on one side of the fixing plate, a rod wall sliding sleeve of the guide rod is provided with a hitting ball, two symmetrically arranged pushing rods are slidably penetrated inside the supporting plate, a pushing plate is fixedly arranged at one end of the two pushing rods away from the guide rods, a first spring is provided on the rod wall sleeve of the pushing rod, two ends of the first spring are fixedly connected to the pushing rod and the fixing plate respectively, and the hitting ball contacts and cooperates with the end of the pushing rod;

[0009] A support frame is fixedly provided on the upper end of the back side of the support base, a control motor is fixedly provided on the upper end of the back side of the support frame, an output shaft of the control motor passes through the support frame and is fixedly provided with a rotating plate, an adsorption magnetic block is fixedly provided on the lower end of the rotating plate, a connecting magnetic block is fixedly provided on the outer wall of the striking ball, a limit block is provided on the rod wall sliding sleeve of the guide rod, and a collision disengagement mechanism for limiting the moving position of the striking ball is provided between the limit block and the guide rod;

[0010] A lower ball tube is connected to the top of the launching guide tube, and a ball receiving mechanism is provided on the tube wall of the lower ball tube.

[0011] Preferably, a guide hole is opened on the back side of the launch guide tube, and the connecting magnetic block is slidably inserted into the guide hole.

[0012] Preferably, the collision disengagement mechanism includes a locking screw, a through hole is opened inside the limit block to cooperate with the sliding of the guide rod, the locking screw is threadedly penetrated through the side of the limit block, and one end is inserted into the through hole, and the other end of the locking screw is fixed with a rotating block.

[0013] Preferably, a plurality of anti-skid protrusions which are arranged symmetrically around the outer wall of the rotating block are fixedly provided.

[0014] Preferably, the ball collecting mechanism includes an exhaust fan, which is fixed on the back side of the lower ball tube, and the air inlet is connected to the tube wall of the lower ball tube, the front side of the lower ball tube is connected to a collecting pipe, the collecting pipe is a corrugated collecting pipe, and the upper end of the lower ball tube is provided with a pipe cover.

[0015] Preferably, the tube cover and the tube opening of the lower bulb are connected by snap-fitting.

[0016] Preferably, a support plate is fixedly provided on the top of the tube cover, a drive motor is fixedly provided on the upper end of the side of the support plate, the output shaft of the drive motor passes through the support plate and is fixedly provided with a push block, a lower ball rod is slidably passed through the inner middle end of the tube cover, the lower end of the lower ball rod passes through the lower ball tube, a second spring is sleeved on the upper end of the lower ball rod, the two ends of the second spring are respectively fixedly connected to the tube cover and the lower ball rod, and the push block is in contact and cooperate with the end of the lower ball rod.

[0017] Preferably, a limiting groove is provided on the rod wall of the guide rod, a limiting slider is fixedly embedded on the inner wall of the striking ball, and the limiting slider is slidably disposed in the limiting groove.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a teaching volleyball serve training device, which has the following

[0020] Beneficial effects:

[0021] 1. The teaching volleyball serving training device is provided with a launching guide tube, a fixing plate, a pushing rod, a pushing plate, a first spring, a guiding rod, a hitting ball, a control motor, a rotating plate, an adsorption magnetic block and a connecting magnetic block and a limiting block. The hitting ball can be made to fall from different heights by adjusting the position of the limiting block, so that the hitting force of the volleyball can be adjusted, so that the volleyball can be launched to different heights. The device is suitable for serving training at various heights to ensure the training effect.

[0022] 2. The teaching volleyball serving training device can strongly suck the hit volleyball and let it enter the lower ball tube through the launch guide tube, lower ball tube, ball receiving mechanism, tube cover, support plate, driving motor, pushing block, lower ball rod and second spring. By pushing the volleyball into the launch guide tube under the push of the lower ball rod, the volleyball can be launched continuously and stably, so that the training work can be carried out stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a volleyball serving training device proposed by the present invention;

[0024] Figure 2 It is a rear view of the present invention;

[0025] Figure 3 for Figure 1 An internal cross-sectional view of

[0026] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the middle limit block;

[0027] Figure 5 for Figure 3A magnified view of the structure of part A in the middle.

[0028] In the figure: 1 launching guide cylinder, 2 supporting base, 3 fixing plate, 4 guiding rod, 5 striking ball, 6 pushing rod, 7 pushing plate, 8 first spring, 9 supporting frame, 10 controlling motor, 11 rotating plate, 12 adsorbing magnetic block, 13 connecting magnetic block, 14 limiting block, 15 lower ball tube, 16 guiding hole, 17 locking screw, 18 through hole, 19 rotating block, 20 anti-skid protrusion, 21 exhaust fan, 22 collecting tube, 23 tube cover, 24 supporting plate, 25 driving motor, 26 pushing block, 27 lower ball rod, 28 second spring, 29 limiting groove, 30 limiting slider. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-5 A teaching volleyball serve training device comprises a launching guide tube 1 and a supporting base 2 fixedly arranged at the bottom of the launching guide tube 1, a fixing plate 3 is fixedly arranged on the inner wall of the launching guide tube 1, a guide rod 4 is fixedly arranged on one side of the fixing plate 3, a hitting ball 5 is slidably sleeved on the rod wall of the guide rod 4, a limiting groove 29 is arranged on the rod wall of the guide rod 4, a limiting slider 30 is fixedly embedded on the inner wall of the hitting ball 5, the limiting slider 30 is slidably arranged in the limiting groove 29, two symmetrically arranged pushing rods 6 are slidably penetrated inside the supporting plate 3, a pushing plate 7 is fixedly arranged at one end of the two pushing rods 6 away from the guide rod 4, a first spring 8 is sleeved on the rod wall of the pushing rod 6, two ends of the first spring 8 are respectively fixedly connected to the pushing rod 6 and the fixing plate 3, and the hitting ball 5 contacts and cooperates with the end of the pushing rod 6;

[0031] A support frame 9 is fixed to the upper end of the back side of the support base 2, and a control motor 10 is fixed to the upper end of the back side of the support frame 9. The output shaft of the control motor 10 passes through the support frame 9 and is fixed with a rotating plate 11. An adsorption magnetic block 12 is fixed to the lower end of the rotating plate 11. A connecting magnetic block 13 is fixed to the outer wall of the hitting ball 5. A limit block 14 is provided on the rod wall sliding sleeve of the guide rod 4. A guide hole 16 is opened on the back side of the launching guide tube 1, and the connecting magnetic block 13 is slidably penetrated into the guide hole 16.

[0032] Before volleyball serve training, the volleyball is sucked into the launching guide cylinder 1 and is located in front of the pushing plate 7. Then, the limit block 14 is set at a specified height above the guide rod 4. Then, the control motor 10 is started to drive the rotating plate 11 to rotate. At this time, the rotating plate 11 drives the adsorption magnetic block 12 to rotate. When the adsorption magnetic block 12 rotates slowly and gradually contacts the connecting magnetic block 13, the connecting magnetic block 13 is magnetically adsorbed and moves synchronously with the adsorption magnetic block 12, so that the hitting ball 5 passes through the comfort slide. The block 30 and the limiting groove 29 slide together and slide along the rod wall of the guide rod 4. When the hitting ball 5 contacts the limiting block 14, it is blocked by the limiting block 14, so that the adsorption magnetic block 12 and the connecting magnetic block 13 are separated. At this time, the hitting ball 5 falls by its own gravity and pushes the pushing rod 6, so that the pushing rod 6 squeezes the first spring 8 and pushes the pushing plate 7 with great force, so that the pushing plate 7 can hit the volleyball in front of it and rise to the moving height along the launching guide tube 1. At this time, the serving training can be completed.

[0033] In order to enable the stop block 14 to be set at a variety of positions to perform a variety of serve heights, such as Figure 1-2 and Figure 4 As shown, a collision disengagement mechanism for limiting the moving position of the hitting ball 5 is provided between the limit block 14 and the guide rod 4, and the collision disengagement mechanism includes a locking screw 17. A through hole 18 for cooperating with the sliding of the guide rod 4 is opened inside the limit block 14, and the locking screw 17 is threadedly penetrated through the side of the limit block 14, and one end is inserted into the through hole 18, and the other end of the locking screw 17 is fixedly provided with a rotating block 19, and the outer wall of the rotating block 19 is fixedly provided with a plurality of anti-slip protrusions 20 arranged in a surrounding symmetrical manner.

[0034] Before determining the height of the serve, the limit block 14 can be slid along the guide rod 4, and after the limit block 14 moves to the specified height, the anti-slip protrusion 20 is set to push the rotating block 19, so that the rotating block 19 drives the locking screw 17 to rotate, so that the end of the locking screw 17 can tightly squeeze the guide rod 4 to determine the position of the limit block 4, so that the rising height of the hit ball 5 is limited and the serve height is changed.

[0035] In order to effectively collect the volleyball after serving and ensure that the serve continues to be stable, such as Figure 1-2 and Figure 5As shown, the top of the launching guide tube 1 is connected to a lower ball tube 15, and the tube wall of the lower ball tube 15 is provided with a ball collecting mechanism, which includes an exhaust fan 21, which is fixedly arranged on the back side of the lower ball tube 15, and the air inlet is connected to the tube wall of the lower ball tube 15, and the front side of the lower ball tube 15 is connected to a collecting pipe 22, and the collecting pipe 22 is a corrugated collecting pipe, and the upper end of the lower ball tube 15 is provided with a pipe cover 23, and the pipe cover 23 is connected to the pipe mouth of the lower ball tube 15 by a buckle, and the top of the pipe cover 23 is connected to the lower ball tube 15. A support plate 24 is fixedly provided on the top of the side of the support plate 24, a driving motor 25 is fixedly provided on the upper end of the side of the support plate 24, the output shaft of the driving motor 25 passes through the support plate 24 and is fixedly provided with a pushing block 26, a lower ball rod 27 is slidably passed through the inner middle end of the tube cover 23, the lower end of the lower ball rod 27 passes through the lower ball tube 15, and a second spring 28 is sleeved on the upper end of the lower ball rod 27, the two ends of the second spring 28 are respectively fixedly connected to the tube cover 23 and the lower ball rod 27, and the pushing block 26 is in contact with the end of the lower ball rod 27.

[0036] After the volleyball is hit, the collecting tube 22 can be stretched to make the collecting tube 22 contact with the volleyball. At this time, under the suction work of the exhaust fan 21, the collecting tube 22 sucks the volleyball into the lower ball tube 15. At this time, the driving motor 25 starts to work and drives the pushing block 26 to rotate. When the pushing block 26 contacts the lower ball rod 27, the lower ball rod 27 is pushed to move downward and push the volleyball, so that the volleyball can move away from the air inlet of the exhaust fan 21 and fall into the launching guide tube 1, so that the pushing plate 7 can continue to serve the ball. At the same time, under the elastic recovery of the second spring 28, the lower ball rod 27 can intermittently contact the pushing block 26 to perform a stable reciprocating pushing operation, ensuring that the volleyball can stably enter the launching guide tube 1 for serving after launching.

[0037] In summary, when the teaching volleyball serve training device is used, the volleyball is sucked into the launching guide cylinder 1 and is located at the front side of the pushing plate 7, and then the limit block 14 is set at a specified height above the guide rod 4, and the limit block 14 is slid along the guide rod 4. After the limit block 14 moves to the specified height, the anti-slip protrusion 20 is set to push the rotating block 19, so that the rotating block 19 drives the locking screw 17 to rotate, so that the end of the locking screw 17 can tightly squeeze the guide rod 4 to determine the position of the limit block 4, and then the control motor 10 is started, so that the control motor 10 drives the rotating plate 11 to rotate, and at this time the rotating plate 11 drives the adsorption magnetic block 12 Rotation, when the adsorption magnetic block 12 rotates slowly and gradually contacts with the connecting magnetic block 13, the connecting magnetic block 13 is magnetically adsorbed and moves synchronously with the adsorption magnetic block 12, so that the hitting ball 5 slides along the rod wall of the guide rod 4 through the sliding cooperation of the comfort slider 30 and the limit groove 29. When the hitting ball 5 contacts the limit block 14, it is blocked by the limit block 14, so that the adsorption magnetic block 12 and the connecting magnetic block 13 are separated. At this time, the hitting ball 5 falls by its own gravity and pushes the push rod 6, so that the push rod 6 squeezes the first spring 8 and pushes the push plate 7 vigorously, so that the push plate 7 can hit the volleyball in front of it and rise to the moving height along the launching guide tube 1;

[0038] After the volleyball is hit, the collecting tube 22 can be stretched to make the collecting tube 22 contact with the volleyball. At this time, under the suction work of the exhaust fan 21, the collecting tube 22 sucks the volleyball into the lower ball tube 15. At this time, the driving motor 25 starts to work and drives the pushing block 26 to rotate. When the pushing block 26 contacts the lower ball rod 27, the lower ball rod 27 is pushed to move downward and push the volleyball, so that the volleyball can move away from the air inlet of the exhaust fan 21 and fall into the launching guide tube 1, so that the pushing plate 7 can continue to serve.

[0039] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A volleyball serving training device, comprising a launching guide tube (1) and a supporting base (2) fixedly arranged at the bottom of the launching guide tube (1), characterized in that: The inner wall of the launch guide tube (1) is fixedly provided with a fixing plate (3), one side of the fixing plate (3) is fixedly provided with a guide rod (4), the rod wall sliding sleeve of the guide rod (4) is provided with a striking ball (5), the interior of the support plate (3) is slidably penetrated by two symmetrically arranged pushing rods (6), the ends of the two pushing rods (6) away from the guide rod (4) are jointly fixed with a pushing plate (7), the rod wall sleeve of the pushing rod (6) is provided with a first spring (8), the two ends of the first spring (8) are respectively fixedly connected to the pushing rod (6) and the fixing plate (3), and the striking ball (5) is in contact with and matched with the end of the pushing rod (6); A support frame (9) is fixedly provided on the upper back side of the support base (2), a control motor (10) is fixedly provided on the upper back side of the support frame (9), an output shaft of the control motor (10) passes through the support frame (9) and is fixedly provided with a rotating plate (11), an adsorption magnetic block (12) is fixedly provided on the lower end of the rotating plate (11), an outer wall of the striking ball (5) is fixedly provided with a connecting magnetic block (13), a rod wall sliding sleeve of the guide rod (4) is provided with a limit block (14), and a collision disengagement mechanism for limiting the moving position of the striking ball (5) is provided between the limit block (14) and the guide rod (4); The top of the launching guide tube (1) is connected to a lower ball tube (15), and a ball receiving mechanism is provided on the tube wall of the lower ball tube (15).

2. A teaching volleyball serving training device according to claim 1, characterized in that: A guide hole (16) is provided on the back side of the launch guide tube (1), and the connecting magnetic block (13) is slidably inserted into the guide hole (16).

3. A teaching volleyball serving training device according to claim 1, characterized in that: The collision disengagement mechanism comprises a locking screw (17), a through hole (18) for cooperating with the guide rod (4) to slide is opened inside the limit block (14), the locking screw (17) is threadedly penetrated through the side of the limit block (14), and one end is inserted into the through hole (18), and the other end of the locking screw (17) is fixedly provided with a rotating block (19).

4. A teaching volleyball serving training device according to claim 3, characterized in that: A plurality of anti-slip protrusions (20) arranged in a symmetrical manner around the outer wall of the rotating block (19) are fixedly provided.

5. A teaching volleyball serving training device according to claim 1, characterized in that: The ball collecting mechanism comprises an exhaust fan (21), the exhaust fan (21) is fixedly arranged on the back side of the lower ball tube (15), and the air inlet is connected to the tube wall of the lower ball tube (15), the front side of the lower ball tube (15) is connected to a collecting pipe (22), the collecting pipe (22) is a corrugated collecting pipe, and the upper end of the lower ball tube (15) is provided with a pipe cover (23).

6. A teaching volleyball serving training device according to claim 5, characterized in that: The tube cover (23) is connected to the tube opening of the lower bulb tube (15) by means of a buckle.

7. A teaching volleyball serving training device according to claim 5, characterized in that: A support plate (24) is fixedly provided on the top of the tube cover (23), a driving motor (25) is fixedly provided on the upper end of the side of the supporting plate (24), an output shaft of the driving motor (25) passes through the supporting plate (24) and is fixedly provided with a pushing block (26), a lower ball rod (27) is slidably passed through the middle end of the interior of the tube cover (23), the lower end of the lower ball rod (27) passes through the lower ball tube (15), a second spring (28) is sleeved on the upper end of the lower ball rod (27), the two ends of the second spring (28) are respectively fixedly connected to the tube cover (23) and the lower ball rod (27), and the pushing block (26) is in contact with and fits with the end of the lower ball rod (27).

8. A teaching volleyball serving training device according to claim 1, characterized in that: The rod wall of the guide rod (4) is provided with a limiting groove (29), the inner wall of the striking ball (5) is fixedly embedded with a limiting slide block (30), and the limiting slide block (30) is slidably disposed in the limiting groove (29).

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