Automatic badminton serving device

Abstract

The invention belongs to the technical field of sports equipment, and provides an automatic badminton serving device which comprises a moving assembly and a base, a walking mechanism is arranged at the bottom of the base, a telescopic fixing rod piece is arranged at the top of the base, and a serving angle adjusting mechanism is arranged at the top of the telescopic fixing rod piece; the launching assembly comprises a serving box arranged on the serving angle adjusting mechanism, an opening is formed in one side of the serving box, a roller launching mechanism used for launching badminton balls is arranged at the bottom of the inner side of the opening, a ball barrel is detachably connected to the top of the serving box, the bottom of the ball barrel communicates with the interior of the serving box, and a ball outlet assembly is arranged in the opening; the shuttlecock outlet assembly is used for clamping out the shuttlecocks at the bottom in the shuttlecock barrel downwards, a net plate is further arranged in the opening, and the net plate pushes the shuttlecocks into the roller launching mechanism through a pushing piece. The device can simulate the batting effect of a racket during movement of an opposite athlete in a game, and the training effect of the athlete is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sports equipment, and particularly relates to an automatic badminton serving device. Background Art

[0002] Badminton is a sport that can be carried out both indoors and outdoors. In the field of sports competitions, athletes need to train for a long time, but the instructor cannot accompany the training for a long time. Therefore, a variety of badminton training equipment with specific functions is required for intensive training.

[0003] Among them, the badminton launcher can replace the coach to feed the balls to the athletes. However, most of the existing badminton launching devices are fixed at the same position on the court. Although the serving force can be controlled, it cannot simulate the effect of hitting the ball at different angles when the opponent's player moves left and right on the court in a real game, resulting in poor training effects for the athletes. At the same time, when serving the ball by means of a roller, the roller directly acts on the head of the badminton, and the feather part is not stressed, so it cannot truly simulate the state of being hit by a racket. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic badminton serving device to solve the above problems and achieve the purpose of simulating the racket hitting effect of the opponent's athlete during movement in the game and improving the training effectiveness of the athletes.

[0005] To achieve the above purpose, the present invention provides the following solution: An automatic badminton serving device, comprising:

[0006] A moving component, including a base, a traveling mechanism is arranged at the bottom of the base, a telescopic fixing rod is arranged at the top of the base, and a serving angle adjusting mechanism is arranged at the top of the telescopic fixing rod;

[0007] A launching component, including a serving box arranged on the serving angle adjusting mechanism, an opening is arranged on one side of the serving box, a roller launching mechanism for launching the badminton is arranged at the inner bottom of the opening, a ball tube is detachably connected to the top of the serving box, the bottom of the ball tube is communicated with the inside of the serving box, a ball discharging component is arranged in the opening, the ball discharging component is used for clamping the badminton at the inner bottom of the ball tube downward, and a net plate is also arranged in the opening, and the net plate pushes the badminton into the roller launching mechanism through a pushing member.

[0008] Preferably, the ball output assembly includes a second support plate vertically slidably connected to the serving box, a first lifting drive component is arranged between the second support plate and the serving box, the middle parts of two groups of swing rods are hinged at both ends of the second support plate, the upper ends of the two swing rods are horizontally fixedly connected with clamping rods for clamping badminton, the lower ends of the two swing rods are horizontally fixedly connected with shifting rods, and an opening and closing control component is arranged between the shifting rods and the serving box.

[0009] Preferably, the opening and closing control member comprises a descending slide and an ascending slide vertically opened on the side wall of the opening, the descending slide is located on a side of the ascending slide away from the second support plate, the bottom of the descending slide is connected to the middle of the ascending slide, the top of the ascending slide is connected to the middle of the descending slide, and the lever is slidably connected in the descending slide and the ascending slide;

[0010] Baffles are hinged at the bottom of the downward slide and the top of the upward slide respectively. The hinge axis of the baffle at the bottom of the downward slide is located above the baffle and can only rotate in the direction of the upward slide. The hinge axis of the baffle at the top of the upward slide is located below the baffle and can only rotate in the direction of the downward slide.

[0011] Preferably, the first lifting drive member includes a second screw rod vertically rotatably connected to the serving box, the second screw rod passes through the second support plate and is transmission-connected to the second support plate, and one end of the second screw rod is transmission-connected to a fifth motor.

[0012] Preferably, the roller launching mechanism includes a bottom plate horizontally fixedly connected to the opening of the serving box, the bottom plate is located below the net plate, one end of the bottom plate away from the net plate is horizontally rotatably connected to two groups of launching wheels, the badminton is correspondingly arranged between the two groups of launching wheels, and a fourth motor is transmission-connected between the launching wheels and the bottom plate.

[0013] Preferably, two groups of straightening plates are vertically fixedly connected in the opening, the two straightening plates are arranged parallel to the serving direction, the badminton is located between the two straightening plates, and the pushing member pushes the net plate to slide between the two straightening plates.

[0014] Preferably, the telescopic fixed rod includes a fixed cylinder vertically fixedly connected to the top of the base, the top of the fixed cylinder is vertically slidably connected to the telescopic rod, the top of the side wall of the fixed cylinder is threadedly connected to a plurality of bolts, the threaded ends of the bolts pass through the side wall of the fixed cylinder and are arranged corresponding to the telescopic rod.

[0015] Preferably, the serving angle adjusting mechanism includes a pitching adjusting member, which includes a platform hinged to the top of the telescopic rod. One end of a connecting rod is hinged to one side of the bottom of the platform. The top of the side wall of the telescopic rod is vertically slidably connected with a first support plate. The other end of the connecting rod is hinged to the first support plate. A first lead screw is vertically rotatably connected in the telescopic rod. The first lead screw passes through the first support plate and is in transmission connection with the first support plate. One end of the first lead screw is in transmission connection with a second motor.

[0016] Preferably, the serving angle adjusting mechanism further includes a horizontal adjusting member, which includes a rotating seat rotatably connected to the top of the platform. The rotating seat is arranged parallel to the platform. A gear ring is fixedly sleeved on the side wall of the rotating seat. A third motor is vertically fixedly connected to the platform. The output shaft of the third motor is in transmission connection with the gear ring through a gear.

[0017] Preferably, the traveling mechanism includes a plurality of rollers rotatably connected in the base. The rolling directions of the plurality of rollers are arranged in parallel. A plurality of first motors are fixedly connected in the base. The plurality of first motors are respectively in transmission connection with the plurality of rollers.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects: Overall, by setting the traveling mechanism and the serving angle adjusting mechanism, the present invention can achieve the effects of moving left and right in the field and changing a variety of serving angles during the training process. With the cooperation of the net plate to push the badminton, it can more realistically simulate the scenario of the opponent receiving the ball in the game. At the same time, by adjusting the serving height, the serving can have a variety of angles, which is suitable for the training of a variety of people and improves the training effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the serving device of the present invention;

[0021] Figure 2 It is a schematic diagram of the serving box of the present invention;

[0022] Figure 3 It is a sectional view of the serving box of the present invention;

[0023] Figure 4 It is a schematic diagram of an opening and closing control member of the present invention;

[0024] Figure 5 for Figure 4 A partial enlarged view in FIG.

[0025] Among them, 1. base; 2. roller; 3. first motor; 4. fixing tube; 5. telescopic rod; 6. bolt; 7. hinge seat; 8. connecting rod; 9. first support plate; 10. baffle; 11. first screw rod; 12. second motor; 13. platform; 14. third motor; 15. gear ring; 16. rotating seat; 17. ball box; 18. ball tube; 19. electric telescopic rod; 20. mesh plate; 21. bottom plate; 22. fourth motor; 23. launching wheel; 24. fifth motor; 25. second screw rod; 26. second support plate; 27. lever; 28. clamping rod; 29. ​​rocker arm; 30. upward slide; 31. straightening plate; 32. downward slide. DETAILED DESCRIPTION

[0026] 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.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Reference Figures 1-5 The present invention provides a badminton automatic serving device, comprising:

[0029] The mobile assembly includes a base 1, a walking mechanism is arranged at the bottom of the base 1, a telescopic fixed rod is arranged at the top of the base 1, and a serving angle adjustment mechanism is arranged at the top of the telescopic fixed rod;

[0030] The launching assembly comprises a serving box 17 arranged on a serving angle adjustment mechanism, an opening is arranged on one side of the serving box 17, a roller launching mechanism for launching badminton is arranged at the inner bottom of the opening, a ball barrel 18 is detachably connected to the top of the serving box 17, the bottom of the ball barrel 18 is communicated with the inside of the serving box 17, a ball outlet assembly is arranged in the opening, the ball outlet assembly is used to clamp the badminton at the bottom of the ball barrel 18 downward, a net plate 20 is also arranged in the opening, and the net plate 20 pushes the badminton into the roller launching mechanism through a pushing member.

[0031] The main function of the traveling mechanism is to drive the base 1 to move left and right on the field, so as to drive the roller launching mechanism to move left and right; the main function of the telescopic fixing rod is to adjust the serving height of the serving box 17; the main function of the serving angle adjusting mechanism is to adjust the pitching angle and horizontal angle of serving, and can simulate various receiving situations; the main function of the roller launching mechanism is to launch the badminton; the main function of the ball outlet part is to pull out the badminton at the bottom of the ball tube 18 from the ball tube 18; the main function of the pushing part is to push the badminton by driving the net plate 20 and push the badminton into the roller launching mechanism. Overall, by setting the traveling mechanism and the serving angle adjusting mechanism, the present invention can achieve the effects of moving the serving position left and right on the field and changing various serving angles during the training process. Cooperating with the pushing of the net plate on the badminton, it can more realistically simulate the receiving scenarios of the opponent in the game. At the same time, by adjusting the serving height, the serving can have various angles, which is suitable for the training of various people and improves the training effect.

[0032] In a further optimized solution, it further includes a control unit (not shown in the figure), and the main function of the control unit is to control the operation of each part of the trainer.

[0033] In a further optimized solution, a power system is also provided. The power system can be directly connected to the mains, or a storage battery can be set on the base 1 for power supply.

[0034] In a further optimized solution, the ball outlet assembly includes a second support plate 26 vertically slidably connected in the serving box 17. A first lifting driving member is provided between the second support plate 26 and the serving box 17. The middle parts of two groups of swing rods 29 are respectively hinged at both ends of the second support plate 26. The upper ends of the two swing rods 29 are respectively horizontally and fixedly connected with clamping rods 28 for clamping badminton. The lower ends of the two swing rods 29 are respectively horizontally and fixedly connected with dial rods 27, and an opening and closing control member is provided between the dial rods 27 and the serving box 17.

[0035] In a further optimized solution, the opening and closing control member includes a downward sliding track 32 and an upward sliding track 30 vertically opened on the side wall of the opening. The downward sliding track 32 is located on the side of the upward sliding track 30 away from the second support plate 26. The bottom of the downward sliding track 32 is communicated with the middle part of the upward sliding track 30, and the top of the upward sliding track 30 is communicated with the middle part of the downward sliding track 32. The dial rod 27 is slidably connected in the downward sliding track 32 and the upward sliding track 30;

[0036] Baffle plates 10 are respectively hinged at the bottom of the downward sliding track 32 and the top of the upward sliding track 30. The hinge shaft of the baffle plate 10 at the bottom of the downward sliding track 32 is located above the baffle plate 10 and only rotates in the direction of the upward sliding track 30. The hinge shaft of the baffle plate 10 at the top of the upward sliding track 30 is located below the baffle plate 10 and only rotates in the direction of the downward sliding track 32.

[0037] AsFigure 2 , Figure 4 and Figure 5 As shown in Figure 2 , Figure 4 and Figure 5 , taking the left swing rod 29 as an example, when the second support plate 26 is at the highest position, the lever 27 is located at the top of the outer downward slideway 32. At this time, the tops of the two swing rods 29 are close to each other, so that the clamping rods 28 clamp the badminton heads at the bottom of the ball tube 18. Then, as the second support plate 26 descends, the lever 27 horizontally moves downward along the downward slideway 32 and moves closer to the upward slideway 30.

[0038] In this embodiment, turning slideway parts are provided at the bottom of the downward slideway 32 and the top of the upward slideway 30. During the downward stage, when the lever 27 slides to the turning part of the downward slideway 32, the lever 27 drives the swing rod 29 to rotate, so that the clamping rods 28 at the tops of the two swing rods 29 move away from each other, realizing the release of the badminton and making the badminton fall onto the bottom plate 21. As the second support plate 26 continues to move downward, the lever 27 pushes the baffle 10 at the lower side towards the upward slideway 30, so that the lever 27 is in the upward slideway 30. At this time, the distance between the two clamping rods 28 is the farthest.

[0039] As the second support plate 26 moves upward, the lever 27 slides upward in the upward slideway 30. At this time, the two clamping rods 28 are always in a position with a relatively large distance. When the lever 27 moves to the turning part at the top of the upward slideway 30, as the lever 27 moves outward, the tops of the two swing rods 29 approach, so that the two clamping rods 28 approach and clamp the badminton. As the second support plate 26 continues to move upward, the lever 27 pushes open the upper baffle 10 and enters the downward slideway 32 and clamps the badminton head.

[0040] In a further optimized solution, a coil spring is provided at the hinge shaft of the baffle 10. When the upper baffle 10 is not stressed, it adheres to the upward slideway 30, and when the lower baffle 10 is not stressed, it adheres to the downward slideway 32.

[0041] In a further optimized solution, the first lifting drive member includes a second lead screw 25 vertically and rotatably connected in the serving box 17. The second lead screw 25 passes through the second support plate 26 and is in transmission connection with the second support plate 26. One end of the second lead screw 25 is in transmission connection with a fifth motor 24.

[0042] As Figure 3 shown, when it is necessary to move the second support plate 26 downward, the fifth motor 24 rotates to drive the second lead screw 25 to rotate. When the second lead screw 25 rotates, it drives the second support plate 26 to move downward through screw transmission. When it is necessary to move the second support plate 26 upward, the fifth motor 24 can be controlled to rotate in the reverse direction.

[0043] A further optimized solution is that the roller launching mechanism includes a bottom plate 21 horizontally fixedly connected to the opening of the serving box 17, the bottom plate 21 is located below the net plate 20, and one end of the bottom plate 21 away from the net plate 20 is horizontally rotatably connected to two groups of launching wheels 23, the badminton is correspondingly arranged between the two groups of launching wheels 23, and a fourth motor 22 is transmission-connected between the launching wheels 23 and the bottom plate 21.

[0044] According to a further optimized solution, the pusher includes an electric telescopic rod 19 horizontally fixedly connected to the serving box 17 , and the extended end of the electric telescopic rod 19 is fixedly connected to the mesh plate 20 .

[0045] like Figure 2 and Figure 3 As shown, when the badminton falls onto the bottom plate 21, the net plate 20 moves toward the direction of the launching wheel 23 under the push of the electric telescopic rod 19, pushing the badminton so that its head contacts the two launching wheels 23, thereby realizing the launching of the badminton. Since the feather part of the badminton contacts the net plate 20 when the badminton is launched, the effect of the badminton being hit by a badminton racket can be simulated, which is more in line with the batting effect of the racket. The net plate 20 is above the launching wheel 23, which can avoid interference between the net plate 20 and the launching wheel 23 during the movement of the badminton.

[0046] Further optimization scheme, in this embodiment, in order to more realistically simulate the effect of the racket hitting the ball, the electric telescopic rod 19 can be selected as a high-speed electric telescopic rod, so that the net plate 20 pushes the ball in the direction of the launching wheel 23 at a faster speed.

[0047] As a further optimization scheme, two groups of straightening plates 31 are vertically fixedly connected in the opening, the two straightening plates 31 are arranged parallel to the serving direction, the badminton is located between the two straightening plates 31, and the pushing member pushes the net plate 20 to slide between the two straightening plates 31.

[0048] like Figure 2 As shown, the main function of the straightening plate 31 is to prevent the badminton from deflecting in the left and right directions after falling into the bottom plate 21 .

[0049] A further optimized solution is that the telescopic fixed rod includes a fixed cylinder 4 vertically fixedly connected to the top of the base 1, the top of the fixed cylinder 4 is vertically slidably connected to the telescopic rod 5, the top of the side wall of the fixed cylinder 4 is threadedly connected to a plurality of bolts 6, and the threaded ends of the bolts 6 penetrate the side wall of the fixed cylinder 4 and are arranged corresponding to the telescopic rod 5.

[0050] like Figure 1 As shown, by loosening several bolts 6, the telescopic rod 5 can be telescoped up and down in the fixed tube 4, thereby driving the serving box 17 to adjust the height accordingly. After the height position is adjusted, tighten the bolts 6, and the telescopic rod 5 can be squeezed and fixed in the fixed tube 4 by the bolts 6.

[0051] For a further optimized solution, the serving angle adjustment mechanism includes a pitching adjustment member. The pitching adjustment member includes a platform 13 hinged to the top of the telescopic rod 5. One end of a connecting rod 8 is hinged to one side of the bottom of the platform 13. The top of the side wall of the telescopic rod 5 is vertically slidably connected with a first support plate 9. The other end of the connecting rod 8 is hinged to the first support plate 9. A first lead screw 11 is vertically rotatably connected in the telescopic rod 5. The first lead screw 11 passes through the first support plate 9 and is in transmission connection with the first support plate 9. One end of the first lead screw 11 is in transmission connection with a second motor 12.

[0052] For a further optimized solution, the platform 13 and the top of the telescopic rod 5 are hinged and connected through a hinge seat 7. The connecting rod 8 is arranged on the side away from the opening of the serving box 17.

[0053] As Figure 1 shown, when it is necessary to increase the pitching angle of the serve, by controlling the second motor 12 to drive the first lead screw 11 to rotate, the first support plate 9 is driven to move downward. At this time, the first support plate 9 pulls the connecting rod 8 downward, causing the connecting rod 8 to pull the platform 13 downward, so that the opening end of the serving box 17 is lifted upward, increasing the serving angle. Similarly, by controlling the second motor 12 to rotate in the reverse direction, the launch angle can be reduced.

[0054] For a further optimized solution, the serving angle adjustment mechanism further includes a horizontal adjustment member. The horizontal adjustment member includes a rotating seat 16 rotatably connected to the top of the platform 13. The rotating seat 16 is arranged parallel to the platform 13. A gear ring 15 is fixedly sleeved on the side wall of the rotating seat 16. A third motor 14 is vertically fixedly connected to the platform 13. The output shaft of the third motor 14 is in transmission connection with the gear ring 15 through a gear.

[0055] As Figure 2 shown, when the third motor 14 rotates, it drives the gear ring 15 to rotate through the gear, and then drives the rotating seat 16 to rotate a certain angle, so that the opening direction of the serving box 17 can be changed, changing the serving angle.

[0056] For a further optimized solution, the traveling mechanism includes a plurality of rollers 2 rotatably connected in the base 1. The rolling directions of the plurality of rollers 2 are arranged in parallel. A plurality of first motors 3 are fixedly connected in the base 1. The plurality of first motors 3 are respectively in transmission connection with the plurality of rollers 2.

[0057] As Figure 1 shown, by controlling the rotation of the plurality of first motors 3 through the control unit, the rollers 2 can be driven to rotate, so as to achieve the effect of adjusting the position of the base 1 left and right in the field.

[0058] The working process of this embodiment is as follows: Loosen the bolt 6 to adjust the height of the serving box 17 to a suitable position. Place the badminton into the ball tube 18 and install it on the serving box 17. Start the serving device. Drive the serving device to move left and right on the field by the first motor 3. Make the two clamping rods 28 move up and down in an opening and closing manner through the reciprocating rotation of the fifth motor 24, clamp the badminton out of the ball tube 18 and make it fall onto the bottom plate 21. After that, the electric telescopic rod 19 pushes the net plate 20 to push the badminton between the two launching wheels 23 and launch the badminton.

[0059] During the serving process, the control unit controls the random rotation of the second motor 12 and the third motor 14 to adjust the serving angle and simulate various receiving situations.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0061] The embodiments described above are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A badminton automatic serving device, characterized in that: include: A mobile assembly comprises a base (1), a walking mechanism is arranged at the bottom of the base (1), a telescopic fixed rod is arranged at the top of the base (1), and a serving angle adjustment mechanism is arranged at the top of the telescopic fixed rod; The launching assembly comprises a serving box (17) arranged on the serving angle adjustment mechanism, an opening is arranged on one side of the serving box (17), a roller launching mechanism for launching a badminton is arranged at the inner bottom of the opening, a ball barrel (18) is detachably connected to the top of the serving box (17), the bottom of the ball barrel (18) is communicated with the inside of the serving box (17), a ball outlet assembly is arranged in the opening, the ball outlet assembly is used to clamp the badminton at the bottom of the ball barrel (18) downwards, and a net plate (20) is also arranged in the opening, and the net plate (20) pushes the badminton into the roller launching mechanism through a pushing member.

2. The automatic badminton serving device according to claim 1, characterized in that: The ball discharging assembly comprises a second support plate (26) vertically slidably connected to the serving box (17); a first lifting driving member is arranged between the second support plate (26) and the serving box (17); the middle parts of two sets of swing rods (29) are respectively hinged at both ends of the second support plate (26); the upper ends of the two swing rods (29) are respectively horizontally fixedly connected to clamp rods (28) for clamping badminton; the lower ends of the two swing rods (29) are respectively horizontally fixedly connected to shifting rods (27); an opening and closing control member is arranged between the shifting rods (27) and the serving box (17).

3. The automatic badminton serving device according to claim 2, characterized in that: The opening and closing control member comprises a descending slide (32) and an ascending slide (30) vertically arranged on the side wall of the opening, the descending slide (32) being located on a side of the ascending slide (30) away from the second support plate (26), the bottom of the descending slide (32) being connected to the middle of the ascending slide (30), the top of the ascending slide (30) being connected to the middle of the descending slide (32), and the shifting rod (27) being slidably connected in the descending slide (32) and the ascending slide (30); The bottom of the downward slide (32) and the top of the upward slide (30) are respectively hinged with baffles (10); the hinge axis of the baffle (10) located at the bottom of the downward slide (32) is located above the baffle (10) and rotates only in the direction of the upward slide (30); the hinge axis of the baffle (10) located at the top of the upward slide (30) is located below the baffle (10) and rotates only in the direction of the downward slide (32).

4. The automatic badminton serving device according to claim 2, characterized in that: The first lifting drive member comprises a second screw rod (25) vertically rotatably connected to the serving box (17); the second screw rod (25) passes through the second support plate (26) and is transmission-connected to the second support plate (26); one end of the second screw rod (25) is transmission-connected to a fifth motor (24).

5. The automatic badminton serving device according to claim 1, characterized in that: The roller launching mechanism comprises a bottom plate (21) horizontally fixedly connected to the opening of the serving box (17), the bottom plate (21) being located below the net plate (20), one end of the bottom plate (21) away from the net plate (20) being horizontally rotatably connected to two groups of launching wheels (23), the badminton being correspondingly arranged between the two groups of launching wheels (23), and a fourth motor (22) being transmission-connected between the launching wheels (23) and the bottom plate (21).

6. The automatic badminton serving device according to claim 1, characterized in that: Two groups of straightening plates (31) are vertically fixedly connected in the opening, the two straightening plates (31) are arranged parallel to the serving direction, the badminton is located between the two straightening plates (31), and the pushing member pushes the net plate (20) to slide between the two straightening plates (31).

7. The automatic badminton serving device according to claim 1, characterized in that: The telescopic fixed rod comprises a fixed cylinder (4) vertically fixedly connected to the top of the base (1); the top of the fixed cylinder (4) is vertically slidably connected to a telescopic rod (5); the top of the side wall of the fixed cylinder (4) is threadedly connected to a plurality of bolts (6); the threaded ends of the bolts (6) penetrate the side wall of the fixed cylinder (4) and are arranged corresponding to the telescopic rod (5).

8. The automatic badminton serving device according to claim 7, characterized in that: The serving angle adjustment mechanism comprises a pitch adjustment member, which comprises a platform (13) hingedly connected to the top of the telescopic rod (5), one end of a connecting rod (8) being hingedly connected to one side of the bottom of the platform (13), a first support plate (9) being vertically slidably connected to the top of the side wall of the telescopic rod (5), the other end of the connecting rod (8) being hingedly connected to the first support plate (9), a first screw rod (11) being vertically rotatably connected inside the telescopic rod (5), the first screw rod (11) passing through the first support plate (9) and being transmission-connected to the first support plate (9), and one end of the first screw rod (11) being transmission-connected to a second motor (12).

9. The automatic badminton serving device according to claim 8, characterized in that: The serving angle adjustment mechanism also includes a horizontal adjustment member, which includes a rotating seat (16) rotatably connected to the top of the platform (13), the rotating seat (16) is arranged parallel to the platform (13), a gear ring (15) is fixedly sleeved on the side wall of the rotating seat (16), a third motor (14) is vertically fixedly connected to the platform (13), and an output shaft of the third motor (14) is transmission-connected to the gear ring (15) via a gear.

10. The automatic badminton serving device according to claim 1, characterized in that: The walking mechanism comprises a plurality of rollers (2) rotatably connected to the base (1), wherein the rolling directions of the plurality of rollers (2) are arranged in parallel, and a plurality of first motors (3) are fixedly connected to the base (1), wherein the plurality of first motors (3) are respectively transmission-connected to the plurality of rollers (2).

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