Volleyball serving training machine

Abstract

The invention is suitable for the technical field of physical training instruments, and provides a volleyball serving training machine which comprises a balance weight base and a supporting seat arranged above the balance weight base. The connecting box is arranged above the supporting seat; the air cylinder is fixedly mounted in the connecting box and used for launching volleyballs, and a push plate is mounted on an output rod of the air cylinder; the feeding mechanism is arranged on the counterweight base, is used for automatically feeding volleyballs and is positioned on one side of the connecting box; and the adjusting mechanism is arranged on the counterweight base and is used for adjusting the launching angle of the connecting box. The volleyball serving training machine has the advantages that the serving angle can be flexibly adjusted, and the requirements of different training stages and targets are met.

Description

Technical Field

[0001] The invention belongs to the technical field of sports training equipment, and in particular relates to a volleyball serving training machine. Background Art

[0002] Volleyball is one of the ball sports. The existing volleyball brings great fun to people in daily life, and volleyball has become a common sport in the Olympic sports. During the training of volleyball, a volleyball serve training machine is an indispensable sports equipment. The volleyball serve training machine is mainly a device that hits the volleyball to facilitate people's training.

[0003] At present, most of the existing volleyball serve training machines cannot adjust the serve position when serving, and have little randomness, resulting in poor training effect and affecting the improvement of athletes' level. Summary of the invention

[0004] The present invention provides a volleyball serving training machine, aiming to solve the problem raised in the above background technology that most of the currently used volleyball serving training machines cannot adjust the serving position.

[0005] To solve the above problems, the present invention is implemented as follows: a volleyball serving training machine includes: a counterweight base and a support base arranged above the counterweight base; a connecting box arranged above the support base; a cylinder fixedly installed in the connecting box for launching volleyballs, and a push plate is installed on the output rod of the cylinder; a feeding mechanism arranged on the counterweight base for automatically feeding volleyballs, and the feeding mechanism is located on one side of the connecting box; an adjusting mechanism arranged on the counterweight base for adjusting the launching angle of the connecting box.

[0006] Preferably, the adjustment mechanism includes: a threaded barrel rotatably mounted on the top of the counterweight base; a threaded rod threadedly mounted on the threaded barrel, the top of the threaded rod being fixedly connected to the support seat; a first motor fixedly mounted on the counterweight base, a first bevel gear being fixedly sleeved on the output shaft and the threaded barrel of the first motor, a group of the first bevel gears being meshed with each other; an angle adjustment mechanism provided on the support seat for adjusting the inclination angle of the connecting box; and a rotation adjustment mechanism provided on the angle adjustment mechanism for rotationally adjusting the position of the connecting box.

[0007] Preferably, the angle adjustment mechanism includes: a U-shaped frame rotatably mounted on the support seat; a driving gear rotatably mounted in the U-shaped frame; an arc-shaped rack mounted on the bottom of the connecting box, the arc-shaped rack meshing with the driving gear; a second motor fixedly mounted on one side of the U-shaped frame, the output shaft of the second motor being fixedly connected to the output rod of the driving gear.

[0008] Preferably, the rotation adjustment mechanism includes: a mounting plate fixedly mounted on the bottom of the U-shaped frame; a group of connecting rods respectively mounted on the mounting plate and the output rod of the driving gear; a group of sprockets respectively fixedly mounted on a group of the connecting rods; a chain mounted on a group of the sprockets, the chain meshing with a group of the sprockets; a group of second bevel gears respectively fixedly mounted on the support seat and the connecting rod located on the mounting plate, the group of second bevel gears meshing with each other.

[0009] Preferably, a connection groove is provided at the bottom of the inner wall of the connection box, a first electric telescopic rod is installed at the bottom of the connection groove, and a fixing plate is installed on the output rod of the first electric telescopic rod.

[0010] Preferably, protective covers are provided on the U-shaped frame and the counterweight base, and a group of protective covers are respectively provided on the first motor, the first bevel gear and the sprocket and the chain.

[0011] Preferably, a connecting seat is installed on one side of the U-shaped frame, and an L-shaped plate is installed on the protective cover located on one side of the U-shaped frame. The L-shaped plate is slidably connected to the connecting seat, and a positioning rod is slidably installed on the top of the connecting seat. The positioning rod is slidably connected to the slot of the L-shaped plate, and a compression spring is sleeved on the positioning rod, and both ends of the compression spring are respectively fixedly connected to the connecting seat and the fixing plates of the positioning rod.

[0012] Preferably, the feeding mechanism includes a feeding box and a collecting box, a discharge port is opened on one side of the feeding box, a rectangular tube is sleeved on the feeding box, a feed hopper is installed on the top of the connecting box, a discharge pipe is installed on one side of the rectangular tube, and the two end openings of the discharge pipe are respectively located on one side of the discharge port and above the feed hopper.

[0013] Preferably, a connecting port is opened on one side of the feeding box, and the connecting port is arranged opposite to the discharging port. A second electric telescopic rod is fixedly installed on one side of the inner wall of the rectangular cylinder, and a connecting block is fixedly installed on the output rod of the second electric telescopic rod, and the connecting block is located on one side of the connecting port.

[0014] Preferably, a connecting plate is fixedly installed on one side of the feeding box, a connecting frame is slidably sleeved on the connecting plate, the connecting frame is fixedly connected to the rectangular tube, a screw rod is threadedly installed on the connecting frame, the screw rod is in rotational contact with the connecting plate, a controller is installed on one side of the feeding box, a guide telescopic rod is installed on the top of the counterweight base, and the output rod of the guide telescopic rod is fixedly connected to the support seat.

[0015] Preferably, the feeding mechanism also includes a rotating frame, a group of conveyor belts, multiple inclined plates, a group of driven gears and a servo motor. The rotating frame is fixedly installed in the collecting box, a connecting pipe is installed on one side of the collecting box, and the connecting pipe is fixedly connected to the feeding box. A group of the conveyor belts are installed in the feeding box, and multiple inclined plates are respectively installed on a group of the conveyor belts. A group of the driven gears are respectively arranged on an output rod of a group of the conveyor belts and the feeding box. A group of the driven gears are meshed with each other, and the servo motor is installed on one side of the feeding box. The output shaft of the servo motor is fixedly connected to the output rod of any one of the conveyor belts.

[0016] Preferably, a baffle is installed at the bottom of the rectangular cylinder, and the baffle is located at one side of the discharge port.

[0017] Compared with the related art, the volleyball serve training machine provided by the present invention has the following beneficial effects:

[0018] Compared with the existing technology, the volleyball serve training machine provided by the present invention can simulate the serve situation in a real game by accurately controlling the speed, power and angle of the serve, and help athletes improve their reaction speed, judgment ability and technical level. At the same time, the automated serve mechanism also reduces the interference of human factors, ensuring the consistency and accuracy of training. The design of the adjustment mechanism enables the connection box to flexibly adjust the serve angle to meet the needs of different training stages and goals. This flexibility not only improves the targeted nature of the training, but also increases the fun and challenge of the training.

[0019] In summary, the volleyball serve training machine of the present invention has the advantage of being able to flexibly adjust the serve angle to meet the needs of different training stages and goals. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main cross-sectional structure of a volleyball serving training machine provided by the present invention;

[0021] Figure 2 It is a side cross-sectional structural schematic diagram of a volleyball serving training machine provided by the present invention;

[0022] Figure 3 It is a main structural schematic diagram of a volleyball serving training machine provided by the present invention;

[0023] Figure 4 It is a side structural schematic diagram of a volleyball serve training machine provided by the present invention;

[0024] Figure 5 It is a schematic diagram of the side cross-sectional structure of the middle loading box provided by the present invention;

[0025] Figure 6It is an assembly diagram of the driving gear, arc-shaped rack, U-shaped frame and the second motor provided by the present invention;

[0026] Figure 7 It is an assembly diagram of the middle arc rack and the driving gear provided by the present invention;

[0027] Figure 8 for Figure 5 An enlarged structural diagram of part A shown in FIG.

[0028] Fig. 9 for Figure 5 An enlarged schematic diagram of the structure of part B shown in FIG.

[0029] Fig.10 for Figure 6 Schematic diagram of the enlarged structure of part C shown in FIG.

[0030] Figure numerals: 1, counterweight base; 2, support base; 3, connection box; 4, cylinder; 5, push plate; 6, feeding mechanism; 61, feeding box; 62, collection box; 63, rotating frame; 64, conveyor belt; 65, inclined plate; 66, driven gear; 67, servo motor; 7, threaded cylinder; 8, threaded rod; 9, first motor; 10, first bevel gear; 11, U-shaped frame; 12, driving gear; 13, arc rack; 14, second motor; 15, connecting rod ; 16. sprocket; 17. chain; 18. second bevel gear; 19. connecting groove; 20. first electric telescopic rod; 21. fixing plate; 22. protective cover; 23. connecting seat; 24. L-shaped plate; 25. positioning rod; 26. guide block; 27. rectangular cylinder; 28. feed hopper; 29. ​​discharge pipe; 30. second electric telescopic rod; 31. connecting plate; 32. connecting frame; 33. twist rod; 34. controller; 35. guide telescopic rod; 36. baffle. DETAILED DESCRIPTION

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] The embodiment of the present invention provides a volleyball serving training machine, such as Figure 1-10 As shown, the volleyball serving training machine includes: a counterweight base 1 and a support base 2 arranged above the counterweight base 1; a connecting box 3 arranged above the support base 2; a cylinder 4 fixedly installed in the connecting box 3 for launching volleyballs, and a push plate 5 is installed on the output rod of the cylinder 4; a feeding mechanism 6 arranged on the counterweight base 1 for automatic feeding of volleyballs, and the feeding mechanism 6 is located on one side of the connecting box 3; an adjusting mechanism arranged on the counterweight base 1 for adjusting the launching angle of the connecting box 3.

[0034] In this embodiment, when in use, firstly, the controller 34 is manipulated to operate the adjusting mechanism so that the adjusting mechanism adjusts the height, tilt angle and rotation angle of the connecting box 3 so that the volleyball opening of the connecting box 3 is located at a specified position, and then the feeding mechanism 6 is started so that the feeding mechanism 6 feeds the volleyball so that the feeding mechanism 6 automatically delivers the volleyball to the connecting box 3, and then the cylinder 4 is started, and the push plate 5 will quickly push the volleyball so that the volleyball is hit out at a certain speed and force. This mechanized serving method ensures the consistency and stability of the serve, which is convenient for people to train. When training, people can manipulate the controller 34 to adjust the height, tilt angle and rotation angle of the connecting box 3. The mechanism is set so that the adjustment mechanism regularly adjusts the connection box 3, thereby allowing the connection box 3 to adjust the serving position of the volleyball. By accurately controlling the speed, power and angle of the serve, the device can simulate the serving situation in a real game, helping athletes improve their reaction speed, judgment ability and technical level. At the same time, the automated serving mechanism also reduces the interference of human factors and ensures the consistency and accuracy of training. The design of the adjustment mechanism enables the connection box 3 to flexibly adjust the serving angle to meet the needs of different training stages and goals. This flexibility not only improves the targetedness of training, but also increases the fun and challenge of training.

[0035] In a further preferred embodiment of the present invention, the adjustment mechanism includes: a threaded barrel 7 rotatably mounted on the top of the counterweight base 1; a threaded rod 8 threadedly mounted on the threaded barrel 7, and the top of the threaded rod 8 is fixedly connected to the support base 2; a first motor 9 fixedly mounted on the counterweight base 1, and a first bevel gear 10 is fixedly mounted on the output shaft of the first motor 9 and the threaded barrel 7, and a group of the first bevel gears 10 are meshed with each other; an angle adjustment mechanism provided on the support base 2 for adjusting the inclination angle of the connecting box 3; and a rotation adjustment mechanism provided on the angle adjustment mechanism for rotationally adjusting the position of the connecting box 3.

[0036] In this embodiment, when adjusting the height of the connecting box 3, the first motor 9 is first started, so that the output shaft of the first motor 9 drives the first bevel gear 10 to rotate, and the first bevel gear 10 drives the threaded barrel 7 to rotate, so that the threaded barrel 7 drives the threaded rod 8 to slide downward, thereby causing the threaded rod 8 to drive the connecting box 3 to slide down, and the height position of the connecting box 3 is adjusted. Through the combination of the threaded barrel 7 and the threaded rod 8 and the driving mode of the first motor 9 and the first bevel gear 10, the lifting and lowering adjustment of the support seat 2 and the connecting box 3 is realized, providing the user with a larger adjustment space. At the same time, the addition of the angle adjustment mechanism and the rotation adjustment mechanism enables the connecting box 3 to adjust the angle and direction of the serve in all directions to meet different training scenarios and needs.

[0037] In a further preferred embodiment of the present invention, the angle adjustment mechanism includes: a U-shaped frame 11 rotatably mounted on the support seat 2; a driving gear 12 rotatably mounted in the U-shaped frame 11; an arcuate rack 13 mounted at the bottom of the connecting box 3, the arcuate rack 13 meshing with the driving gear 12; a second motor 14 fixedly mounted on one side of the U-shaped frame 11, and the output shaft of the second motor 14 is fixedly connected to the output rod of the driving gear 12.

[0038] In this embodiment, when adjusting the inclination angle of the connection box 3, the second motor 14 is first started, so that the output shaft of the second motor 14 drives the driving gear 12 to rotate, so that the driving gear 12 drives the arc rack 13 to rotate, so that the arc rack 13 drives the connection box 3 to rotate along the U-shaped frame 11. When the arc rack 13 rotates, the arc rack 13 slides along the guide block 26 in the U-shaped frame 11, thereby guiding the arc rack 13 to ensure that the connection box 3 moves stably, so that the volleyball port of the connection box 3 moves upward or downward, and the inclination angle of the connection box 3 is adjusted. Since the arc-shaped rack 13 is fixedly connected to the bottom of the connecting box 3, the connecting box 3 and its internal cylinder 4 and other components will also change their inclination angles accordingly, thereby achieving precise adjustment of the serving angle. By adopting the meshing mode of the active gear 12 and the arc-shaped rack 13, and the precise control of the second motor 14, precise adjustment of the serving angle is achieved. This adjustment method is more accurate and reliable than traditional manual adjustment. Precise serving angle adjustment enables this device to simulate more diverse serving situations, helping athletes to comprehensively improve their reaction speed, judgment ability and technical level.

[0039] In a further preferred embodiment of the present invention, the rotation adjustment mechanism includes: a mounting plate fixedly mounted on the bottom of the U-shaped frame 11; a group of connecting rods 15 respectively mounted on the mounting plate and the output rod of the driving gear 12; a group of sprockets 16 respectively fixedly mounted on a group of the connecting rods 15; a chain 17 mounted on a group of the sprockets 16, the chain 17 meshing with a group of the sprockets 16; a group of second bevel gears 18 respectively fixedly mounted on the support seat 2 and the connecting rod 15 located on the mounting plate, and a group of the second bevel gears 18 meshing.

[0040] In this embodiment, when the inclination angle of the connecting box 3 is adjusted, the output rod of the driving gear 12 simultaneously drives the connecting rod 15 to rotate, so that the connecting rod 15 drives the sprocket 16 to rotate, and the sprocket 16 drives the chain 17 to rotate synchronously, thereby realizing a group of synchronous rotation operations of the connecting rods 15, so that the connecting rod 15 drives the second bevel gear 18 to rotate, and the second bevel gear 18 on the connecting rod 15 rotates along the second bevel gear 18 on the support seat 2, thereby realizing the rotation operation of the U-shaped frame 11. When the connecting box 3 is performing the inclination angle adjustment operation, the connecting box 3 is synchronously rotated, thereby adjusting the serving position of the volleyball. By adding a rotation adjustment mechanism, the connecting box 3 can rotate in the horizontal direction, further expanding the adjustment range of the serving position, and improving the flexibility and diversity of training. By accurately controlling the direction of the serving position, the device can simulate more diverse serving scenarios, helping athletes to comprehensively improve their reaction speed, judgment ability and technical level.

[0041] In a further preferred embodiment of the present invention, a connection groove 19 is provided at the bottom of the inner wall of the connection box 3 , a first electric telescopic rod 20 is installed at the bottom of the connection groove 19 , and a fixing plate 21 is installed on the output rod of the first electric telescopic rod 20 .

[0042] In this embodiment, when the volleyball is discharged into the connecting box 3, the first electric telescopic rod 20 drives the fixed plate 21 to slide, so that the fixed plate 21 slides into the connecting groove 19. When the volleyball is discharged into the connecting box 3, the volleyball is stuck in the connecting groove 19, thereby ensuring that the volleyball will not be discharged out of the connecting box 3. When the volleyball needs to be served, the first electric telescopic rod 20 is started, so that the output rod of the first electric telescopic rod 20 drives the fixed plate 21 to slide, so that the fixed plate 21 drives the volleyball to slide into the box body of the connecting box 3, thereby facilitating the subsequent push plate 5 to serve the volleyball. Through the coordinated use of the first electric telescopic rod 20 and the fixed plate 21, the volleyball is firmly fixed. This fixing method is not only suitable for volleyballs of different sizes and shapes, but also can ensure that the volleyball will not fall off during the serving process, thereby improving the stability and safety of training.

[0043] In a further preferred embodiment of the present invention, protective covers 22 are provided on the U-shaped frame 11 and the counterweight base 1, and a group of protective covers 22 are respectively provided on the first motor 9, the first bevel gear 10, the sprocket 16, and the chain 17.

[0044] In this embodiment, the protective cover 22 can effectively prevent the user or external objects from directly contacting the high-speed rotating or moving parts, thereby avoiding possible injuries or accidents. In addition, the protective cover 22 can also play a role in dust and pollution prevention. During the operation of the equipment, dust and impurities in the air may adhere to the surface of the parts, affecting the normal operation and life of the equipment. The protective cover 22 can block these external pollutants from entering the interior of the equipment and keep the parts clean and dry. By adding the protective cover 22, the user does not need to worry about injuries or accidents caused by accidental touch or external factors during use, so that training can be carried out more safely. The protective cover 22 can effectively protect the first motor 9, the first bevel gear 10, the sprocket 16 and the chain 17 and other key components from external interference or damage. The stable operation of these components is crucial to the overall performance and life of the equipment. Therefore, protecting them is of great significance to improving the reliability and durability of the equipment. At the same time, the dust and pollution prevention function of the protective cover 22 can keep the internal components of the equipment clean and dry, reduce failures or performance degradation caused by pollution, and at the same time, the noise reduction and shock absorption function can also enhance the user's experience and make the equipment more stable and quiet during operation.

[0045] In a further preferred embodiment of the present invention, a connecting seat 23 is installed on one side of the U-shaped frame 11, and an L-shaped plate 24 is installed on the protective cover 22 located on one side of the U-shaped frame 11, and the L-shaped plate 24 is slidably connected to the connecting seat 23, and a positioning rod 25 is slidably installed on the top of the connecting seat 23, and the positioning rod 25 is slidably connected to the slot of the L-shaped plate 24, and a compression spring is sleeved on the positioning rod 25, and the two ends of the compression spring are respectively fixedly connected to the connecting seat 23 and the fixing plates of the positioning rod 25.

[0046] In this embodiment, when it is necessary to open the protective cover 22, the user can pull the positioning rod 25 upward to make it slide along the connecting seat 23. During the sliding process, the positioning rod 25 slides away from the card slot of the L-shaped plate 24, and the compression spring stretches and stores energy. When the positioning rod 25 slides away from the L-shaped plate 24, the L-shaped plate 24 can be taken out, and the protective cover 22 can be removed from the U-shaped frame 11. When it is necessary to install the protective cover 22, the user only needs to push the L-shaped plate 24 back to its original position, and the positioning rod 25 will automatically bounce and snap into the card slot of the L-shaped plate 24 under the elastic force of the compression spring. Thereby, the protective cover 22 is fixed and positioned. By adding structures such as a connecting seat 23, an L-shaped plate 24, a positioning rod 25 and a compression spring, the installation operation of the protective cover 22 is made more convenient and flexible. The user can easily operate it according to needs, which improves the usability of the equipment. The coordinated use of the positioning rod 25 and the compression spring can ensure that the protective cover 22 remains in a stable state after installation. The positioning rod 25 can be firmly inserted into the slot of the L-shaped plate 24 to prevent the protective cover 22 from accidentally falling off, and the compression spring can provide a certain resistance to ensure that the positioning rod 25 can be firmly immobile when inserted into the slot.

[0047] In a further preferred embodiment of the present invention, the feeding mechanism 6 includes a feeding box 61 and a collecting box 62, a discharge port is opened on one side of the feeding box 61, a rectangular tube 27 is sleeved on the feeding box 61, a feed hopper 28 is installed on the top of the connecting box 3, a discharge pipe 29 is installed on one side of the rectangular tube 27, and the two end openings of the discharge pipe 29 are respectively located on one side of the discharge port and above the feed hopper 28.

[0048] In this embodiment, when volleyballs need to be supplied to the equipment, the volleyballs are first placed in the collecting box 62, and discharged into the loading box 61 through the connecting pipe of the collecting box 62. The volleyballs are then conveyed by the conveyor belt 64 in the loading box 61, so that the volleyballs are transported to one side of the discharge port, and then discharged into the discharge pipe 29 through the discharge port, so that the discharge pipe 29 discharges the volleyballs into the connecting box 3 through the feed hopper 28, thereby realizing the automatic loading operation of the volleyballs. The arrangement of the rectangular cylinder 27 and the discharge pipe 29 helps to reduce the falling of materials during the transmission process, ensuring that they are stably discharged into the connecting box 3.

[0049] In a further preferred embodiment of the present invention, a connecting port is opened on one side of the loading box 61, and the connecting port is arranged opposite to the discharging port. A second electric telescopic rod 30 is fixedly installed on one side of the inner wall of the rectangular tube 27, and a connecting block is fixedly installed on the output rod of the second electric telescopic rod 30, and the connecting block is located on one side of the connecting port.

[0050] In this embodiment, when the volleyball slides up to one side of the mouth of the discharge pipe 29, the servo motor 67 is first turned off to stop the conveyor belt 64 from conveying, and then the second electric telescopic rod 30 is started so that the output rod of the second electric telescopic rod 30 drives the connecting block to slide, so that the connecting block pushes the volleyball in the loading box 61 into the discharge pipe 29, and the volleyball is automatically loaded. Through the telescopic function of the second electric telescopic rod 30, the volleyball can be automatically pushed into the discharge pipe 29, thereby realizing the automatic loading of the volleyball.

[0051] In a further preferred embodiment of the present invention, a connecting plate 31 is fixedly installed on one side of the loading box 61, a connecting frame 32 is slidably sleeved on the connecting plate 31, the connecting frame 32 is fixedly connected to the rectangular tube 27, a screw rod 33 is threadedly installed on the connecting frame 32, the screw rod 33 is in rotational contact with the connecting plate 31, a controller 34 is installed on one side of the loading box 61, a guide telescopic rod 35 is installed on the top of the counterweight base 1, and the output rod of the guide telescopic rod 35 is fixedly connected to the support seat 2.

[0052] In this embodiment, after the adjustment mechanism has adjusted the height of the connecting box 3, the screw rod 33 is rotated to rotate one end of the screw rod 33 away from the connecting plate 31, and then the connecting frame 32 is slid, so that the connecting frame 32 drives the connecting plate 31 to slide, and the connecting frame 32 drives the rectangular tube 27 to slide along the loading box 61, so that the rectangular tube 27 drives the discharge pipe 29 to move, and the discharge pipe 29 slides to the top of the feed hopper 28, thereby ensuring that the discharge pipe 29 can stably load the volleyball. Through the combined use of the connecting plate 31, the connecting frame 32 and the screw rod 33, the position of the rectangular tube 27 can be conveniently adjusted to meet the loading operations of different heights of the connecting box 3. The use of the guide telescopic rod 35 not only improves the height and position adjustment capabilities of the connecting box 3, but also enhances its stability.

[0053] In order to further improve the use effect of the device, in addition to the above scheme, this scheme also has the following embodiments:

[0054] In another embodiment of the present invention, the feeding mechanism 6 also includes a rotating frame 63, a group of conveyor belts 64, a plurality of inclined plates 65, a group of driven gears 66 and a servo motor 67, the rotating frame 63 is fixedly installed in the collecting box 62, a connecting pipe is installed on one side of the collecting box 62, the connecting pipe is fixedly connected to the feeding box 61, a group of the conveyor belts 64 are all installed in the feeding box 61, a plurality of the inclined plates 65 are respectively installed on a group of the conveyor belts 64, a group of the driven gears 66 are respectively arranged on the output rods of a group of the conveyor belts 64 and the feeding box 61, a group of the driven gears 66 are meshed with each other, the servo motor 67 is installed on one side of the feeding box 61, and the output shaft of the servo motor 67 is fixedly connected to the output rod of any one of the conveyor belts 64.

[0055] In this embodiment, the material is first collected into the collecting box 62, and then enters the feeding box 61 through the connecting pipe. After that, the servo motor 67 is started to drive one of the conveyor belts 64 to move, and then through the transmission action of the driven gear 66, the other conveyor belt 64 is driven to move synchronously. The material is guided by the inclined plate 65 on the conveyor belt 64 to achieve uniform distribution and smooth flow, and finally transported to the target position, which is convenient for the subsequent pushing of the material into the discharge pipe 29. Through the combined use of the conveyor belt 64 and the inclined plate 65, continuous and stable transportation of the material is achieved, and the transportation efficiency is improved. The meshing transmission of the driven gear 66 ensures the synchronous movement between a group of conveyor belts 64, and prevents the material from being offset or accumulated during the transportation process.

[0056] In another embodiment of the present invention, a baffle 36 is installed at the bottom of the rectangular tube 27, and the baffle 36 is located at one side of the discharge port.

[0057] In this embodiment, when the height of the rectangular cylinder 27 is adjusted, the baffle 36 at the bottom of the rectangular cylinder 27 is also simultaneously moved along one side of the loading box 61, so that the baffle 36 blocks the discharge port, thereby ensuring that the material in the loading box 61 will not be discharged from the discharge port. Through the setting of the baffle 36, the material is effectively prevented from being discharged through the discharge port on one side of the loading box 61. At the same time, it can also ensure that the material is stably discharged into the discharge pipe 29.

[0058] In summary, compared with related technologies, the device has the advantage of being able to flexibly adjust the serving angle to meet the needs of different training stages and goals.

[0059] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A volleyball serving training machine, characterized in that: include: A counterweight base (1) and a support base (2) arranged above the counterweight base (1); A connection box (3) arranged above the support seat (2); A cylinder (4) for launching a volleyball is fixedly mounted in the connection box (3), and a push plate (5) is mounted on an output rod of the cylinder (4); A loading mechanism (6) provided on the counterweight base (1) for automatically loading volleyballs, the loading mechanism (6) being located on one side of the connection box (3); An adjustment mechanism is provided on the counterweight base (1) and is used to adjust the emission angle of the connection box (3).

2. The volleyball serve training machine according to claim 1, characterized in that: The regulating mechanism comprises: Rotating a threaded cylinder (7) mounted on the top of the counterweight base (1); a threaded rod (8) threadably mounted on the threaded barrel (7), the top end of the threaded rod (8) being fixedly connected to the support seat (2); A first motor (9) is fixedly mounted on the counterweight base (1), wherein the output shaft of the first motor (9) and the threaded cylinder (7) are both fixedly sleeved with a first bevel gear (10), and a group of the first bevel gears (10) are meshed with each other; An angle adjustment mechanism provided on the support seat (2) and used for adjusting the tilt angle of the connection box (3); A rotation adjustment mechanism is provided on the angle adjustment mechanism and is used for rotationally adjusting the position of the connection box (3).

3. The volleyball serve training machine according to claim 2, characterized in that: The angle adjustment mechanism comprises: A U-shaped frame (11) rotatably mounted on the support seat (2); Rotating a driving gear (12) installed in the U-shaped frame (11); An arc-shaped rack (13) installed at the bottom of the connection box (3), the arc-shaped rack (13) meshing with the driving gear (12); A second motor (14) is fixedly mounted on one side of the U-shaped frame (11), and an output shaft of the second motor (14) is fixedly connected to an output rod of the driving gear (12).

4. The volleyball serve training machine according to claim 3, characterized in that: The rotation adjustment mechanism comprises: A mounting plate fixedly mounted on the bottom of the U-shaped frame (11); A group of connecting rods (15) respectively mounted on the mounting plate and the output rod of the driving gear (12); A group of sprockets (16) respectively fixedly mounted on a group of connecting rods (15); A chain (17) sleeved on a group of sprocket wheels (16), wherein the chain (17) is meshed with the group of sprocket wheels (16); A group of second bevel gears (18) are respectively fixedly mounted on the support seat (2) and the connecting rod (15) located on the mounting plate, and the group of second bevel gears (18) are meshed with each other.

5. The volleyball serving training machine according to claim 2, characterized in that: A connection groove (19) is provided at the bottom of the inner wall of the connection box (3), a first electric telescopic rod (20) is installed at the bottom of the connection groove (19), and a fixing plate (21) is installed on the output rod of the first electric telescopic rod (20).

6. The volleyball serving training machine according to claim 2, characterized in that: The U-shaped frame (11) and the counterweight base (1) are both provided with protective covers (22), and a group of protective covers (22) are respectively provided on the first motor (9), the first bevel gear (10), the sprocket (16), and the chain (17).

7. The volleyball serving training machine according to claim 3, characterized in that: A connecting seat (23) is installed on one side of the U-shaped frame (11); an L-shaped plate (24) is installed on the protective cover (22) located on one side of the U-shaped frame (11); the L-shaped plate (24) is slidably connected to the connecting seat (23); a positioning rod (25) is slidably installed on the top of the connecting seat (23); the positioning rod (25) is slidably connected to the card slot of the L-shaped plate (24); a compression spring is sleeved on the positioning rod (25); and two ends of the compression spring are respectively fixedly connected to the connecting seat (23) and the fixing plate of the positioning rod (25).

8. The volleyball serve training machine according to claim 1, characterized in that: The feeding mechanism (6) comprises a feeding box (61) and a collecting box (62); a discharge port is provided on one side of the feeding box (61); a rectangular tube (27) is sleeved on the feeding box (61); a feed hopper (28) is installed on the top of the connecting box (3); a discharge pipe (29) is installed on one side of the rectangular tube (27); and two end openings of the discharge pipe (29) are respectively located on one side of the discharge port and above the feed hopper (28).

9. The volleyball serving training machine according to claim 8, characterized in that: A connection port is provided on one side of the loading box (61), and the connection port is arranged opposite to the discharge port. A second electric telescopic rod (30) is fixedly mounted on one side of the inner wall of the rectangular cylinder (27), and a connection block is fixedly mounted on the output rod of the second electric telescopic rod (30), and the connection block is located on one side of the connection port.

10. The volleyball serving training machine according to claim 9, characterized in that: A connecting plate (31) is fixedly installed on one side of the loading box (61), a connecting frame (32) is slidably sleeved on the connecting plate (31), the connecting frame (32) is fixedly connected to the rectangular tube (27), a screw rod (33) is threadedly installed on the connecting frame (32), the screw rod (33) is in rotational contact with the connecting plate (31), a controller (34) is installed on one side of the loading box (61), a guide telescopic rod (35) is installed on the top of the counterweight base (1), and the output rod of the guide telescopic rod (35) is fixedly connected to the support seat (2).

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