阅读说明：本技术 一种网球发射装置 (Tennis ball launching device ) 是由 李曼 于 2021-08-10 设计创作，主要内容包括：一种网球发射装置,包括壳体,壳体内设有盛球槽,盛球槽底面有送球装置,壳体上有射球装置,壳体前侧有进球斗,壳体后侧有排球门,壳体底面两侧有固定板,固定板外侧有两个万向轮,固定板内侧有圆盘,圆盘之间有棱台,棱台的棱角上有弹力网,固定板上有导球槽,第一内槽内有导送杆,导送杆上有螺旋槽,盛球槽的一侧上部有进球槽,壳体上有两根进气管与两根出气管,棱台内有管道,第一轴与第二轴之间设有调向装置。本装置能够实现将网球进行收集,并将网球送入盛球槽内,该功能的实现未使用电器,不会因电源电量不足导致无法使用,本装置通过导送杆进行网球输送,便于使用者将网球完全取出,本装置设置有吹气结构,能够对网球进行吹气清理。(A tennis ball launching device comprises a shell, wherein a ball containing groove is formed in the shell, a ball feeding device is arranged on the bottom surface of the ball containing groove, a ball shooting device is arranged on the shell, a ball feeding hopper is arranged on the front side of the shell, a ball discharging door is arranged on the rear side of the shell, fixing plates are arranged on two sides of the bottom surface of the shell, two universal wheels are arranged on the outer sides of the fixing plates, discs are arranged on the inner sides of the fixing plates, a prismatic table is arranged between the discs, an elastic net is arranged on the edge of the prismatic table, a ball guiding groove is formed in each fixing plate, a guiding and feeding rod is arranged in a first inner groove, a spiral groove is formed in each guiding and feeding rod, a ball feeding groove is formed in the upper portion of one side of the ball containing groove, two air inlet pipes and two air outlet pipes are arranged on the shell, a pipeline is arranged in the prismatic table, and a direction adjusting device is arranged between the first shaft and the second shaft. This device can realize collecting the tennis to send the tennis into flourishing ball inslot, the realization of this function does not use the electrical apparatus, can not lead to unable the use because of power electric quantity is not enough, and this device carries out the tennis through leading the pole of sending, and convenient to use person takes out the tennis completely, and this device is provided with the structure of blowing, can blow the clearance to the tennis.)

1. The utility model provides a tennis ball emitter, which comprises a housin (1), be equipped with flourishing ball groove (2) in casing (1), the bottom surface of flourishing ball groove (2) is equipped with and send the ball device, fixed mounting has the device of shooting the ball on casing (1), the front side fixed mounting of casing (1) has into ball fill (3), the articulated row's goal (4) of installing of rear side of casing (1), the bottom surface both sides fixed mounting respectively of casing (1) has fixed plate (5), the outside lower part of fixed plate (5) is fixed mounting respectively has two universal wheel (38) behind the tandem, its characterized in that: the inner sides of the fixed plates (5) are respectively rotatably provided with a disc (6), the opposite surfaces of the discs (6) are connected through a plurality of elastic ropes (7) which are uniformly distributed, transverse prismatic tables (8) are fixedly arranged between the discs (6), elastic nets (9) are respectively fixedly arranged on the prismatic angles of the prismatic tables (8), one side of one disc (6) is provided with a plurality of through grooves (10), one fixed plate (5) is provided with a ball guide groove (11), the ball guide groove (11) can be aligned with the through groove (10) positioned at the top, the shell (1) and one fixed plate (5) are provided with a first inner groove (12), the bottom of the first inner groove (12) is communicated with the bottom of the ball guide groove (11), one side of the first inner groove (12) is provided with a vertical clamping groove (13) and two clamping grooves (13), the bottom of the inner wall of the first inner groove (12) is communicated with each other, the bottom of the inner wall of the first inner groove (12) is provided with a connecting groove (14), the connecting groove (14) is communicated with the clamping groove (13) and the ball guide groove (11), a vertical guide rod (15) is rotatably arranged in the first inner groove (12), a spiral groove is formed in the periphery of the guide rod (15), a ball inlet groove (16) communicated with the first inner groove (12) is formed in the upper portion of one side of the ball containing groove (2), a second inner groove (17) is formed in the other fixing plate (5), a connecting pipe (18) is arranged in the second inner groove (17), the connecting pipe (18) penetrates through the fixing plate (5) and is rotatably connected with the fixing plate (5), one end of the connecting pipe (18) is fixedly connected with the center of the outer side of the left disc (6), a first bevel gear (19) is fixedly arranged on the periphery of the other end of the connecting pipe (18), a vertical reciprocating screw rod (20) is arranged in the second inner groove (17), a second bevel gear (21) is fixedly arranged at the lower end of the reciprocating screw rod (20), and the second bevel gear (21) is meshed with the first bevel gear (19), a reciprocating screw (22) in threaded fit with the reciprocating screw rod (20) is arranged on the reciprocating screw rod, a third inner groove (23) is formed in the shell (1), the third inner groove (23) is positioned above the second inner groove (17), two sides of the reciprocating screw (22) are respectively and fixedly connected with the lower end of a moving rod (24), the upper end of the moving rod (24) penetrates through the top surface of the third inner groove (23) and is internally provided with a sealing ring, the upper end of the moving rod (24) is fixedly connected with the bottom surface of the same piston plate (25), the piston plate (23) is in up-and-down sliding fit with the third inner groove (23), two air inlet pipes (26) and two air outlet pipes (27) are fixedly arranged on the shell (1), one check valve is arranged on each of the two air inlet pipes (26) and the two air outlet pipes (27), one of the air inlet pipes (26) and one of the air outlet pipes (27) are communicated with the top of the third inner groove (23), the other air inlet pipe (26) and the other air outlet pipe (27) are communicated with the bottom of the third inner groove (23), a cylindrical cavity is arranged inside the frustum pyramid (8), a pipeline (28) is arranged inside the frustum pyramid (8), the pipeline (28) penetrates through the other disc (6) and is rotationally connected with the other disc (6), the air outlet pipe (27) is fixedly connected with one end of the pipeline (28), the other end of the pipeline (28) is sealed, an air outlet groove (29) is formed in the top surface of the pipeline (28) inside the frustum pyramid (8), a plurality of air vents (30) are formed in the periphery of the frustum pyramid (8), the upper end of the reciprocating screw rod (20) is fixedly connected with the lower end of a first shaft (31), the first shaft (31) penetrates through the top surface of the second inner groove (17) and the top surface of the third inner groove (23) and is connected with the through hole through a sealing bearing, the first shaft (31) penetrates through the piston plate (25) and is provided with a sealing ring between the piston plate (25), a fourth inner groove (32) is arranged above the third inner groove (23), the upper end of the first shaft (31) is positioned in the fourth inner groove (32), a vertical hole is formed in the top surface of the fourth inner groove (32), a vertical second shaft (33) is rotatably installed in the vertical hole, the lower end of the second shaft (33) is positioned in the fourth inner groove (32), a direction adjusting device is arranged between the first shaft (31) and the second shaft (33), and the second shaft (33) is connected with the upper end of the guide rod (15) through a transmission belt structure of a transmission wheel.

2. A tennis ball launching device as defined in claim 1, wherein: the upper end of the second shaft (33) is positioned outside the shell (1), and the upper end of the second shaft (33) is fixedly provided with a rotating handle (34) with anti-skid grains.

3. A tennis ball launching device as defined in claim 1, wherein: the reversing device is composed of two one-way bearings, a third bevel gear (35), a fourth bevel gear (36) and a fifth bevel gear (37), the upper end of the first shaft (31) is connected with the lower end of the second shaft (33) through the one-way bearings, the third bevel gear (35) is installed on the periphery of the first shaft (31) through the one-way bearings, the fourth bevel gear (36) is rotatably installed in the fourth inner groove (32) and meshed with the third bevel gear (35), and the fifth bevel gear (37) is fixedly installed on the periphery of the second shaft (33) and meshed with the fourth bevel gear (36).

4. A tennis ball launching device as defined in claim 1, wherein: the top of the shell (1) is fixedly provided with a movable handle (39).

5. A tennis ball launching device according to claim 4, wherein: a sponge layer is arranged on the periphery of the movable handle (39).

6. A tennis ball launching device as defined in claim 1, wherein: the periphery of the disc (6) is provided with anti-skid lines.

Technical Field

The invention belongs to the field of tennis equipment, and particularly relates to a tennis ball launching device.

Background

The existing tennis ball launching device can not collect tennis balls, and the existing tennis ball collecting equipment needs a user to collect the tennis balls and then place the tennis balls into a ball containing groove of the tennis ball launching device, but the existing tennis ball collecting device has limited capacity and needs to move back and forth for many times, so that the tennis ball launching device is very inconvenient to use, and the public number is as follows: CN113041594A prior art discloses a tennis ball serving device for training, which requires a ball at the back to push a ball at the front into a ball storage box, and this method would result in tennis balls remaining in the ball return pipe, and the tennis balls in the ball return pipe cannot be completely taken out.

Disclosure of Invention

The invention provides a tennis ball launching device which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

the utility model provides a tennis ball emitter, includes the casing, is equipped with flourishing ball groove in the casing, and the bottom surface in flourishing ball groove is equipped with and send the ball device, and fixed mounting has the device of shooting the ball on the casing, and the front side fixed mounting of casing has into the ball fill, and the articulated row of installing of rear side of casing goal, and fixed mounting is distinguished to the bottom surface both sides of casing fixed plate, and fixed mounting has two universal wheels, its characterized in that after one respectively in the outside lower part of fixed plate fixed mounting: the inner sides of the fixed plates are respectively rotatably provided with a disc, the opposite surfaces of the discs are connected through a plurality of elastic ropes which are uniformly distributed, a transverse prismatic table is fixedly arranged between the discs, the edges of the prismatic table are respectively and fixedly provided with an elastic net, one side of one disc is provided with a plurality of through grooves, one fixed plate is provided with a ball guide groove which can be aligned with the through groove positioned at the uppermost part, the shell and one fixed plate are provided with a first inner groove, the bottom of the first inner groove is communicated with the bottom of the ball guide groove, one side of the first inner groove is provided with a vertical clamping groove and two clamping grooves are communicated, the bottom of the inner wall of the first inner groove is provided with a connecting groove which is communicated with the clamping groove and the ball guide groove, a vertical guide rod is installed in the first inner groove in a rotating manner, the periphery of the guide rod is provided with a spiral groove, the upper part of one side of the ball containing groove is provided with a ball inlet groove communicated with the first inner groove, a second inner groove is arranged in the other fixed plate, a connecting pipe is arranged in the second inner groove, the connecting pipe penetrates through the fixed plate and is rotatably connected with the fixed plate, one end of the connecting pipe is fixedly connected with the center of the outer side of the left disc, a first bevel gear is fixedly arranged on the periphery of the other end of the connecting pipe, a vertical reciprocating screw rod is arranged in the second inner groove, a second bevel gear is fixedly arranged at the lower end of the reciprocating screw rod and is meshed with the first bevel gear, a reciprocating screw nut in threaded fit with the reciprocating screw rod is arranged on the reciprocating screw rod, a third inner groove is formed in the shell, the third inner groove is positioned above the second inner groove, two sides of the reciprocating screw nut are respectively and fixedly connected with the lower end of a moving rod, the upper end of the moving rod penetrates through the top surface of the third inner groove, a sealing ring is arranged in a through hole, the upper end of the moving rod is fixedly connected with the bottom surface of the same piston plate, the piston plate is in up-down sliding fit with the third inner groove, and two air inlet pipes and two air outlet pipes are fixedly arranged on the shell, the two air inlet pipes and the two air outlet pipes are respectively provided with a one-way valve, one air inlet pipe and one air outlet pipe are communicated with the top of the third inner groove, the other air inlet pipe and the other air outlet pipe are communicated with the bottom of the third inner groove, the interior of the terrace with edges is provided with a cylindrical cavity, the interior of the terrace with edges is provided with a pipeline, the pipeline penetrates through the other disc and is rotatably connected with the other disc, the air outlet pipes are fixedly connected with one end of the pipeline, the other end of the pipeline is sealed, the top surface of the pipeline positioned in the terrace with edges is provided with an air outlet groove, the periphery of the terrace with edges is provided with a plurality of air vents, the upper end of the reciprocating screw rod is fixedly connected with the lower end of the first shaft, the first shaft penetrates through the top surface of the second inner groove and the top surface of the third inner groove and is connected with the through hole through a sealing bearing, the first shaft penetrates through the piston plate and is provided with a sealing ring between the piston plate, and the fourth inner groove is arranged above the third inner groove, the upper end of the first shaft is positioned in the fourth inner groove, a vertical hole is formed in the top surface of the fourth inner groove, a vertical second shaft is rotatably mounted in the vertical hole, the lower end of the second shaft is positioned in the fourth inner groove, a direction adjusting device is arranged between the first shaft and the second shaft, and the second shaft is connected with the upper end of the guide rod through a transmission belt structure of a transmission wheel.

According to the tennis ball launching device, the upper end of the second shaft is positioned outside the shell, and the rotating handle with the anti-skid grains is fixedly installed at the upper end of the second shaft.

The tennis ball launching device comprises a reversing device and a first inner groove, wherein the reversing device comprises two one-way bearings, a third bevel gear, a fourth bevel gear and a fifth bevel gear, the upper end of the first shaft is connected with the lower end of the second shaft through the one-way bearings, the third bevel gear is mounted on the periphery of the first shaft through the one-way bearings, the fourth bevel gear is rotatably mounted in the fourth inner groove and meshed with the third bevel gear, and the fifth bevel gear is fixedly mounted on the periphery of the second shaft and meshed with the fourth bevel gear.

The tennis ball launching device is characterized in that a movable handle is fixedly mounted at the top of the shell.

The tennis ball launching device is characterized in that a sponge layer is arranged on the periphery of the movable handle.

The tennis ball launching device is characterized in that the periphery of the disc is provided with anti-skid lines.

The invention has the advantages that: the device is a tennis ball launching device, a user can place a ball into a ball containing groove through a ball inlet hopper, the ball feeding device can convey the tennis ball in the ball containing groove, the tennis ball can be launched by the ball launching device, the user can carry out tennis training, the user can move the device after the tennis ball in the ball containing groove is launched, the disc can rotate in the moving process of the device, after two adjacent elastic ropes are contacted with the tennis ball, the tennis ball can enter an inner space defined by the elastic ropes through the elastic ropes, the elastic net can drive the tennis ball to move along with the rotation of the disc, when the tennis ball is positioned above the prismatic table, the tennis ball moves rightwards along the prismatic table under the action of gravity, and then can enter a ball guide groove through a penetrating groove, the tennis ball moves along the ball guide groove, and meanwhile, the disc rotates through a connecting pipe, The first bevel gear and the second bevel gear drive the reciprocating screw rod to rotate, the reciprocating screw rod can drive the reciprocating screw nut to move up and down along the reciprocating screw nut, the reciprocating screw nut can drive the piston plate to move up and down through the moving rod, if the piston plate moves downwards, the air inlet pipe positioned above the piston plate is used for air inlet, and the air outlet pipe positioned below the piston plate is used for air outlet, therefore, no matter the piston plate moves upwards or downwards, air in the third inner groove can be fed and discharged, the discharged air enters the pipeline along the air outlet pipe and is finally discharged through the air outlet groove and the vent hole close to the air outlet groove, the discharged air can be contacted with tennis balls, the dust on the tennis balls is blown off, the rotation of the reciprocating screw rod can drive the first shaft to rotate, the first shaft can drive the second shaft to rotate positively through the direction adjusting device, the second shaft can drive the delivery rod to rotate through the driving wheel and the driving belt, when the delivery rod rotates, the tennis ball in the ball guide groove partially enters the spiral groove of the ball guide rod under the action of gravity component, the ball guide rod can drive the tennis ball to move along the connecting groove, when the tennis ball enters the clamping groove, the ball guide rod rotates to drive the tennis ball to move upwards along the clamping groove, after the tennis ball moves to the ball inlet groove, the tennis ball can enter the ball containing groove through the ball inlet groove, and then the collection of the tennis ball is realized, after the training of a user is completed, the user can take out the tennis ball through the ball discharging door, compared with the prior device, firstly, the device can realize the collection of the tennis ball and send the tennis ball into the ball containing groove, secondly, the user can collect and send the tennis ball into the ball containing groove by moving the device, the function is realized without using electric appliances, therefore, the tennis ball cannot be used due to insufficient power, when the device moves, because the reversing device is arranged, therefore, no matter how the moving direction of the device changes, the guide and feed rod can rotate positively and can convey the tennis balls, the device is convenient to use, in addition, the tennis balls are conveyed through the guide and feed rod, the conveying mode does not need to be pushed by the tennis balls at the rear side, the tennis balls can be prevented from remaining in the first inner groove, a user can take the tennis balls out completely, and finally, the device is provided with a blowing structure, and the tennis balls can be blown and cleaned.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a portion of FIG. 1; FIG. 3 is a partial enlarged view of FIG. 1 taken along line B; fig. 4 is an enlarged view of part i of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a tennis ball launching device, as shown in the figure, including casing 1, be equipped with flourishing ball groove 2 in casing 1, the bottom surface of flourishing ball groove 2 is equipped with the ball feeding device, fixed mounting has the device of shooing on casing 1, the ball feeding device can be sent into the device of shooing with the tennis one by one in, the device of shooing can launch the tennis ball, the ball feeding device is prior art with the device of shooing, this application does not give redundant details, casing 1's front side fixed mounting has into the ball fill 3, into the upper portion intercommunication in ball fill 3 and the flourishing ball groove 2, casing 1's rear side is articulated to be installed and is arranged goal 4, arrange goal 4 and be located the lower part of flourishing ball groove 2, casing 1's bottom surface both sides fixed mounting respectively has fixed plate 5, fixed plate 5's outside lower part respectively fixed mounting have two universal wheels 38 behind one before one, its characterized in that: the inner sides of the fixed plates 5 are respectively rotatably provided with a disc 6, the periphery of the disc 6 can be contacted with a placing surface, the opposite surfaces of the disc 6 are connected through a plurality of elastic ropes 7 which are uniformly distributed, the nearest distance between each elastic rope 7 and the periphery of the disc 6 is smaller than the radius of a tennis ball, more than half of the tennis balls can enter a space defined by the elastic ropes 7 through the two adjacent elastic ropes 7, the gap between the elastic ropes 7 is smaller than the diameter of the tennis ball, after more than half of the tennis balls enter the space defined by the elastic ropes 7, the structure can prevent the tennis balls from escaping from the space defined by the elastic ropes 7, the elastic ropes 7 are arranged in a knotting mode by penetrating through the disc 6, a user can adjust the initial deformation amount of the elastic ropes 7, the larger the initial deformation amount of the elastic ropes is, the larger the force required by the continuous deformation of the elastic ropes is, and the smaller the deformation of the elastic ropes 7 caused by the gravity of the tennis balls is, the tennis ball can be supported by the elastic ropes 7, the tennis ball is prevented from running out of the elastic ropes 7, the elastic ropes 7 can be replaced, transverse prismatic tables 8 are fixedly arranged between the discs 6, the elastic nets 9 are fixedly arranged on the edges of the prismatic tables 8 respectively, the prismatic tables 8 are thick at the left and thin at the right, two ends of each elastic net 9 are fixedly connected with the corresponding disc 6, one side of one disc 6 is provided with a plurality of through grooves 10, one fixing plate 5 is provided with a ball guide groove 11, the ball guide groove 11 is high at the left and low at the right, as shown in figure 3, the ball guide groove 11 can be aligned with the through groove 10 positioned at the uppermost part, the shell 1 and one fixing plate 5 are provided with a first inner groove 12, the bottom of the first inner groove 12 is communicated with the bottom of the ball guide groove 11, one side of the first inner groove 12 is provided with a vertical clamping groove 13, the two clamping grooves 13 are communicated, the bottom of the inner wall of the first inner groove 12 is provided with a connecting groove 14, the connecting groove 14 is communicated with the clamping groove 13 and the ball guide groove 11, the connecting groove 14 is an arc groove, the center of the connecting groove 14 is positioned on the vertical central line of the guide and feed rod 15, the concrete structure is shown in fig. 2, the vertical guide and feed rod 15 is rotatably installed in the first inner groove 12, the periphery of the guide and feed rod 15 is provided with a spiral groove, a tennis ball part can be clamped in the spiral groove of the guide and feed rod 15, the upper part of one side of the ball containing groove 2 is provided with a ball inlet groove 16 communicated with the first inner groove 12, the other fixing plate 5 is provided with a second inner groove 17, the second inner groove 17 is internally provided with a connecting pipe 18, the connecting pipe 18 penetrates through the fixing plate 5 and is rotatably connected with the fixing plate 5, one end of the connecting pipe 18 is fixedly connected with the center of the outer side of the disc 6 on the left side, the periphery of the other end of the connecting pipe 18 is fixedly provided with a first bevel gear 19, the second inner groove 17 is internally provided with a vertical screw rod reciprocating 20, the lower end of the reciprocating screw rod 20 is fixedly provided with a second bevel gear 21, the second bevel gear 21 is engaged with the first bevel gear 19, the reciprocating screw rod 20 is provided with a reciprocating screw nut 22 in threaded fit with the reciprocating screw nut, the shell 1 is provided with a third inner groove 23, the third inner groove 23 is positioned above the second inner groove 17, two sides of the reciprocating screw nut 22 are respectively and fixedly connected with the lower end of a moving rod 24, the upper end of the moving rod 24 penetrates through the top surface of the third inner groove 23, a sealing ring is arranged in a through hole, the upper end of the moving rod 24 is fixedly connected with the bottom surface of the same piston plate 25, the piston plate 23 is in up-and-down sliding fit with the third inner groove 23, the shell 1 is fixedly provided with two air inlet pipes 26 and two air outlet pipes 27, the two air inlet pipes 26 and the two air outlet pipes 27 are respectively provided with a one-way valve, the one-way valve enables external air to enter the third inner groove 23 through the air inlet pipes 26 in a one-way, and air in the third inner groove 23 is discharged through the air outlet pipes 27 in a one-way, one-way through one of the air inlet pipes 26, One of the air outlet pipes 27 is communicated with the top of the third inner groove 23, the other air inlet pipe 26 and the other air outlet pipe 27 are communicated with the bottom of the third inner groove 23, a cylindrical cavity is arranged inside the prismoid 8, a pipeline 28 is arranged inside the prismoid 8, the pipeline 28 penetrates through the other disc 6 and is rotatably connected with the other disc 6, the air outlet pipes 27 are fixedly connected with one end of the pipeline 28, the other end of the pipeline 28 is sealed, an air outlet groove 29 is arranged on the top surface of the pipeline 28 positioned inside the prismoid 8, a plurality of vent holes 30 are arranged on the periphery of the prismoid 8, the upper end of the reciprocating screw rod 20 is fixedly connected with the lower end of a first shaft 31, the first shaft 31 penetrates through the top surface of the second inner groove 17 and is connected with the top surface of the third inner groove 23 through a sealing bearing, a sealing ring is arranged between the first shaft 31 and the piston plate 25, a fourth inner groove 32 is arranged above the third inner groove 23, the upper end of primary shaft 31 is located fourth inside groove 32, perpendicular hole has been seted up to the top surface of fourth inside groove 32, vertical secondary shaft 33 is installed to perpendicular downthehole internal rotation, the lower extreme of secondary shaft 33 is located fourth inside groove 32, be equipped with the accent to the device between primary shaft 31 and the secondary shaft 33, primary shaft 31 forward rotation and antiport all can drive secondary shaft 33 forward rotation through the accent to the device, forward direction of rotation is for overlooking clockwise rotation reversal, be connected through the drive wheel drive belt structure between secondary shaft 33 and the upper end of leading and sending pole 15, the upper portion of casing is equipped with the conveying inner chamber, the drive wheel drive belt structure all is located the conveying inner chamber, when the user promotes this device and removes, avoid user's health and drive wheel drive belt structure to contact, prevent to influence the normal use of this device. The device is a tennis ball launching device, a user can place a ball into a ball containing groove 2 through a ball inlet hopper 3, a ball feeding device can convey the tennis ball in the ball containing groove 2, then the ball launching device can launch the tennis ball, the user can carry out tennis training, after the launching of the tennis ball in the ball containing groove 2 is finished, the user can move the device, in the moving process of the device, a disc 6 can rotate, after two adjacent elastic ropes 7 are contacted with the tennis ball, the tennis ball can pass through the elastic ropes and further enter an inner space defined by the elastic ropes 7, an elastic net 9 can drive the tennis ball to move along with the rotation of the disc 6, when the tennis ball is positioned above a prism table 8, the tennis ball moves along the prism table 8 under the action of gravity, and then can enter a ball guide groove 11 through a through groove 10, the tennis ball moves along the ball guide groove 11, meanwhile, the disc 6 can rotate to drive the reciprocating screw rod 20 to rotate through the connecting pipe 18, the first bevel gear 19 and the second bevel gear 21, the reciprocating screw rod 20 can rotate to drive the reciprocating screw nut 22 to move up and down along the reciprocating screw nut 22, the reciprocating screw nut 22 can move up and down through the moving rod 24 to drive the piston plate 25 to move up and down, if the piston plate 25 moves down, the air inlet pipe 26 positioned above is used for air inlet, the air outlet pipe 27 positioned below is used for air outlet, therefore, no matter whether the piston plate 25 moves up or down, air in the third inner groove 23 enters and is exhausted, the exhausted air enters the pipeline 28 along the air outlet pipe 27 and is finally exhausted through the air outlet groove 29 and the vent hole 30 close to the air outlet groove 29, the exhausted air can be contacted with the tennis balls, the dust on the tennis balls is blown off, the rotation of the reciprocating screw rod 20 can drive the first shaft 31 to rotate, the first shaft 31 can drive the second shaft 33 to rotate forward through the direction adjusting device, the second shaft 33 rotates in the forward direction to drive the guide rod 15 to rotate through the driving wheel and the driving belt, when the guide rod 15 rotates, the tennis ball in the ball guide groove 11 partially enters the spiral groove of the guide rod 15 under the action of gravity component, the guide rod 15 can drive the tennis ball to move along the connecting groove 14, when the tennis ball enters the clamping groove 13, the guide rod 15 rotates to drive the tennis ball to move upwards along the clamping groove 13, after the tennis ball moves to the ball inlet groove 16, the tennis ball can enter the ball containing groove 2 through the ball inlet groove 16, so that the collection of the tennis ball is realized, after the training of a user is completed, the user can take out the tennis ball through the ball discharging gate, compared with the prior art, firstly, the device can collect the tennis ball and send the tennis ball into the ball containing groove 2, and when the user moves the device, the tennis ball can be collected and sent into the ball containing groove 2, the realization of this function does not use the electrical apparatus, consequently, can not lead to unable the use because of power electric quantity is not enough, when this device removed, because of this device is provided with switching-over device, consequently no matter how the moving direction of this device changes, all can make to lead and send pole 15 forward and rotate and carry the tennis, high durability and convenient use, in addition, this device carries out the tennis through leading and sending pole 15, this transport mode does not need the promotion of rear side tennis, can prevent that there is the tennis to remain in first inside groove 12, the person of being convenient for takes out the tennis completely, finally, this device is provided with the structure of blowing, can blow the tennis and clear up.

Specifically, as shown in fig. 1, the upper end of the second shaft 33 in the embodiment is located outside the housing 1, and a stem 34 with anti-slip threads is fixedly mounted on the upper end of the second shaft 33. If there is still tennis ball in the first inner slot 12, the user can rotate the second shaft 33 forward by rotating the rotating handle 34 forward, so as to rotate the feeding rod 15 forward, and further drive the tennis ball to move upward and enter the ball containing slot 2 along the ball inlet slot 16.

Specifically, as shown in fig. 1, the reversing device described in this embodiment is composed of two one-way bearings, a third bevel gear 35, a fourth bevel gear 36, and a fifth bevel gear 37, the upper end of the first shaft 31 is connected with the lower end of the second shaft 33 through the one-way bearings, the first shaft 31 can directly drive the second shaft 33 to rotate in the forward direction through the one-way bearings, the third bevel gear 35 is mounted on the periphery of the first shaft 31 through the one-way bearings, when the third bevel gear 35 rotates in the reverse direction, the third bevel gear 35 can be driven to rotate, the fourth bevel gear 36 is rotatably mounted in the fourth inner groove 32 and meshed with the third bevel gear 35, and the fifth bevel gear 37 is fixedly mounted on the periphery of the second shaft 33 and meshed with the fourth bevel gear 36. When this device removes, because of the moving direction of this device is indefinite, and then lead to the direction of rotation of left side disc 6 indefinite, and then make the direction of primary shaft 31 constantly change, when primary shaft 31 forward rotates, can directly drive secondary shaft 33 forward rotation, secondary shaft 33 forward rotation can drive third bevel gear 35 antiport through fifth bevel gear 37 and fourth bevel gear 36 this moment, on the contrary, when primary shaft 31 reverse rotation, primary shaft 31 can't drive secondary shaft 33 antiport, primary shaft 31 drives third bevel gear 35 antiport, and then can drive secondary shaft 33 forward rotation through fourth bevel gear 36 and fifth bevel gear 37, consequently, primary shaft 31 forward rotation all can drive secondary shaft 33 forward rotation, this switching-over device's simple structure, be convenient for produce the manufacturing.

Further, as shown in fig. 1, a movable handle 39 is fixedly mounted on the top of the housing 1 according to the embodiment. The user can promote this device through removing handle 39 and remove, and it is more convenient to use.

Further, as shown in fig. 1, the movable handle 39 of the present embodiment is provided with a sponge layer on the outer periphery. The sponge layer can increase the contact area between the movable handle 39 and the palm of the user, so that the anti-skidding effect is achieved, and the user can feel more comfortable when gripping the movable handle 39.

Further, as shown in fig. 1, the periphery of the disc 6 according to the present embodiment is provided with anti-slip threads. The anti-slip threads can increase the friction between the disc 6 and the ground, and thus can prevent the disc 6 from sliding so that the disc 6 can rotate.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.