阅读说明：本技术 一种乒乓球训练发球装置 (Table tennis training service device ) 是由 刘玮 于 2021-07-29 设计创作，主要内容包括：本发明涉及乒乓球训练装置技术领域,公开了一种乒乓球训练发球装置,包括：箱体；传球筒,纵向设置在箱体内,上部穿出箱体的顶面,位于箱体外；进球装置,下部倾斜穿过箱体的侧壁与传球筒相连通；传球装置,将进入传球筒内的乒乓球送到传球筒外；击球装置；控制器,当进球装置进球到传球筒后,控制传球装置进行传球,当传球到达指定位置后,控制击球装置进行击打发出；电源模块,用于给进球装置、传球装置、击球装置和控制器供电；所述进球装置、传球装置和击球装置分别与控制器信号连接,这种乒乓球训练发球装置,能够使得一个人也能够练习接球,使得乒乓球练习不受陪练人员的制约,同时将大大节省乒乓球练习的家庭开支。(The invention relates to the technical field of table tennis training devices, and discloses a table tennis training service device, which comprises: a box body; the ball conveying cylinder is longitudinally arranged in the box body, the upper part of the ball conveying cylinder penetrates through the top surface of the box body and is positioned outside the box body; the lower part of the ball inlet device obliquely penetrates through the side wall of the box body and is communicated with the ball passing cylinder; the ball passing device is used for sending the table tennis which enters the ball passing cylinder out of the ball passing cylinder; a ball striking device; the controller is used for controlling the ball passing device to pass when the ball entering device enters the ball passing cylinder, and controlling the ball hitting device to hit and send out when the ball passes to a designated position; the power module is used for supplying power to the ball feeding device, the ball passing device, the ball hitting device and the controller; goal device, pass ball device and hit the ball device respectively with controller signal connection, this kind of table tennis training service device can make also can practise alone and receive the ball for the table tennis exercise does not receive training partner's restriction, will save the family spending of table tennis exercise simultaneously greatly.)

1. A table tennis training serving device, comprising:

a box body (1);

the ball conveying cylinder (6) is longitudinally arranged in the box body (1), the upper end of the ball conveying cylinder penetrates out of the top surface of the box body (1) and is positioned outside the box body (1), and the lower end of the ball conveying cylinder is fixedly connected with the bottom of the box body (1);

the lower part of the ball inlet device obliquely penetrates through the side wall of the box body (1) and is communicated with the ball passing cylinder (6);

the ball conveying device conveys the table tennis balls entering the ball conveying cylinder (6) to the outside of the ball conveying cylinder (6);

the ball hitting device is arranged outside the box body (1) and used for hitting and sending table tennis balls conveyed to the outside of the ball conveying cylinder (6) by the ball conveying device;

the controller is arranged in the box body (1) and is used for controlling the ball inlet device to feed a table tennis ball into the ball conveying cylinder each time, controlling the ball conveying device to convey the ball after the ball is fed into the ball conveying cylinder (6) by the ball inlet device, and controlling the ball hitting device to hit and send the ball after the ball reaches a designated position;

the power module is used for supplying power to the ball feeding device, the ball passing device, the ball hitting device and the controller;

the ball inlet device, the ball passing device and the ball hitting device are respectively in signal connection with the controller.

2. The table tennis training serving apparatus of claim 1, wherein the goal apparatus comprises:

the bottom of the ball inlet hopper (2) is provided with an opening through which a table tennis ball can pass;

the first ball inlet pipe is vertically arranged, and the upper end of the first ball inlet pipe is connected with an opening at the bottom of the ball inlet hopper (2);

the second ball inlet pipe (3) is arranged obliquely downwards, the upper end of the second ball inlet pipe is connected with the lower end of the first ball inlet pipe, and the lower end of the second ball inlet pipe is communicated with the ball passing cylinder (6);

the first electric telescopic rod (5) is arranged in the box body (1), is inserted into the second ball inlet pipe (3) after being extended and is positioned at the junction of the second ball inlet pipe (3) and the ball passing cylinder (6);

the second electric telescopic rod (4) is arranged in the box body (1), is inserted into the second ball inlet pipe (3) after being extended, and is positioned between the first table tennis and the second table tennis at the lower part in the second ball inlet pipe (3);

the first electric telescopic rod (5) and the second electric telescopic rod (4) are respectively connected with the power supply module, and the first electric telescopic rod (5) and the second electric telescopic rod (4) are respectively connected with the controller through signals.

3. The table tennis training serving apparatus of claim 1, wherein said ball passing means comprises:

the compressed air pump (7) is arranged outside the box body (1), an air inlet pipe of the compressed air pump (7) is connected with the compressed air bottle, and an air outlet pipe of the compressed air pump (7) penetrates through the bottom of the box body (1) and is communicated with the lower end of the ball conveying cylinder (6);

and the compression air pump (7) is respectively connected with the power module and the controller.

4. The table tennis training serving apparatus of claim 1, wherein said ball passing means comprises:

the first motor (14) is arranged at the bottom in the box body (1);

the screw rod (15) is vertically arranged, the lower end of the screw rod is fixedly connected with an output shaft of the first motor (14) through a coupler, and the upper end of the screw rod penetrates through the top of the box body (1) and is positioned outside the box body (1);

the screw rod nut (16) is arranged on the screw rod (15), and the screw rod (15) can move up and down along the screw rod (15) when rotating;

a first slot opening is formed in the ball conveying cylinder (6) along the height direction;

the first connecting rod (18) is horizontally arranged, the first end of the first connecting rod is fixed on the screw nut (16), and the second end of the first connecting rod penetrates through the slot and is positioned in the ball conveying cylinder (6);

the top of the box body (1) is provided with a second slot (17) through which a screw nut (16) and a first connecting rod (18) pass;

the tray (19) is arranged in the ball conveying cylinder (6), and the bottom of the tray is fixedly connected with the second end of the first connecting rod (18);

the first motor (14) is respectively connected with the power module and the controller.

5. A table tennis training serving device as defined in claim 1 or 3, wherein said ball striking device comprises:

the second motor (8) is arranged at the top of the box body (1) through a bracket;

the second connecting rod (13) is horizontally arranged, and the first end of the second connecting rod is fixedly connected with an output shaft of the second motor (8) through a coupler;

the first beating bat (10) is fixedly connected with the second end of the second connecting rod (13);

and the second motor (8) is respectively connected with the power module and the controller.

6. The table tennis training serving device of claim 4, wherein the ball striking device comprises:

the gear box (9) is positioned at the upper part of the screw rod (15);

the gear box (9) is internally provided with:

the first gear (9-1) is horizontally arranged and fixedly sleeved on the screw rod (15);

the second gear (9-2) is vertically arranged, fixedly sleeved on the connecting support (20) and meshed with the first gear (9-1);

and the second beating bat (21) is fixedly connected with the connecting bracket (20).

7. Table tennis training service device according to claim 6, wherein the connecting bracket (20) comprises:

the first end of the first horizontal rod (20-1) is fixedly connected with the second beating bat (21);

the first end of the second horizontal rod (20-2) is fixedly connected with the second gear (9-2);

and the vertical rod is connected between the second end of the first horizontal rod (20-1) and the second end of the second horizontal rod (20-2).

8. Table tennis training service device according to claim 1, wherein the bottom of the housing (1) is further provided with positioning means for connecting the housing (1) to a table tennis table.

9. The table tennis training serving apparatus of claim 8, wherein the positioning device comprises:

the U-shaped clamping piece (11) has an opening consistent with the ball hitting direction of the ball hitting device, the height of the opening is matched with the thickness of the table tennis table, and a threaded hole is formed in the U-shaped clamping piece (11);

and the positioning bolt (12) penetrates through the threaded hole to fix the box body (1) and the table tennis table.

Technical Field

The invention relates to the technical field of table tennis training devices, in particular to a table tennis training service device.

Background

Along with the improvement of people's standard of living, more and more people attach more importance to the sports, and in the sports operation, table tennis is deeply liked by everyone, and is suitable for all ages, and the table tennis exercise needs two people to train together, especially teenagers beginner, needs to practise the ball catching, and nevertheless, parents are busy, can only send child to table tennis club or training institution, trains by coach one-to-one, practises table tennis and makes the family spending great.

How to make one person also can practice the ball of catching for the table tennis exercise is not restricted by the training mate, is the latent demand of people, will save the expense of table tennis exercise simultaneously greatly.

Disclosure of Invention

The invention provides a table tennis training service device, which enables a person to practice receiving of a table tennis, enables the table tennis practice not to be restricted by accompanying personnel, and greatly saves the economic cost of the table tennis practice.

The invention provides a table tennis training service device, which comprises: a box body;

the ball conveying cylinder is longitudinally arranged in the box body, the upper end of the ball conveying cylinder penetrates out of the top surface of the box body and is positioned outside the box body, and the lower end of the ball conveying cylinder is fixedly connected with the bottom of the box body;

the lower part of the ball inlet device obliquely penetrates through the side wall of the box body and is communicated with the ball passing cylinder;

the ball passing device is used for sending the table tennis which enters the ball passing cylinder out of the ball passing cylinder;

the ball hitting device is arranged outside the box body and used for hitting and sending the table tennis which is sent out of the ball passing cylinder by the ball passing device;

the controller is arranged in the box body and used for controlling the ball inlet device to feed one table tennis ball into the ball conveying cylinder each time, controlling the ball conveying device to convey the ball after the ball is fed into the ball conveying cylinder by the ball inlet device, and controlling the ball hitting device to hit and send the ball after the ball reaches a designated position;

the power module is used for supplying power to the ball feeding device, the ball passing device, the ball hitting device and the controller;

the ball inlet device, the ball passing device and the ball hitting device are respectively in signal connection with the controller.

Preferably, the goal apparatus includes:

the bottom of the ball inlet hopper is provided with an opening through which a table tennis ball can pass;

the first ball inlet pipe is vertically arranged, and the upper end of the first ball inlet pipe is connected with an opening at the bottom of the ball inlet hopper;

the second ball inlet pipe is obliquely arranged downwards, the upper end of the second ball inlet pipe is connected with the lower end of the first ball inlet pipe, and the lower end of the second ball inlet pipe is communicated with the ball passing cylinder;

the first electric telescopic rod is arranged in the box body, is inserted into the second ball inlet pipe after being extended and is positioned at the junction of the second ball inlet pipe and the ball passing cylinder;

the second electric telescopic rod is arranged in the box body, is inserted into the second ball inlet pipe after being extended, and is positioned between the first table tennis and the second table tennis at the lower part in the second ball inlet pipe;

the first electric telescopic rod and the second electric telescopic rod are respectively connected with the power supply module and are respectively connected with the controller through signals.

Preferably, the ball passing device comprises:

the compressed air pump is arranged outside the box body, an air inlet pipe of the compressed air pump is connected with the compressed air bottle, and an air outlet pipe of the compressed air pump penetrates through the bottom of the box body and is communicated with the lower end of the ball conveying cylinder;

the compressed air pump is respectively connected with the power module and the controller.

Preferably, the ball passing device includes:

the first motor is arranged at the bottom in the box body;

the screw rod is vertically arranged, the lower end of the screw rod is fixedly connected with an output shaft of the first motor through a coupler, and the upper end of the screw rod penetrates through the top of the box body and is positioned outside the box body;

the screw rod nut is arranged on the screw rod and can move up and down along the screw rod when rotating;

a first slot opening is formed in the ball conveying cylinder along the height direction;

the first connecting rod is horizontally arranged, the first end of the first connecting rod is fixed on the screw nut, and the second end of the first connecting rod penetrates through the slot and is positioned in the ball conveying cylinder;

the top of the box body is provided with a second slot which is used for a screw nut and a first connecting rod to pass through;

the tray is arranged in the ball conveying cylinder, and the bottom of the tray is fixedly connected with the second end of the first connecting rod;

the first motor is respectively connected with the power module and the controller.

Preferably, the ball striking device comprises:

the second motor is arranged at the top of the box body through a bracket;

the second connecting rod is horizontally arranged, and the first end of the second connecting rod is fixedly connected with an output shaft of the second motor through a coupler;

the first beating bat is fixedly connected with the second end of the second connecting rod;

and the second motor is respectively connected with the power module and the controller.

Preferably, the ball striking device comprises:

the gear box is positioned at the upper part of the screw rod;

the gear box is internally provided with:

the first gear is horizontally arranged and fixedly sleeved on the screw rod;

the second gear is vertically arranged, fixedly sleeved on the connecting bracket and meshed and connected with the first gear;

and the second beating bat is fixedly connected with the connecting bracket.

Preferably, the connecting bracket includes:

the first end of the first horizontal rod is fixedly connected with the second beating bat;

the first end of the first horizontal rod is fixedly connected with the second gear;

and the vertical rod is connected between the second end of the first horizontal rod and the second end of the second horizontal rod.

Preferably, the bottom of the box body is further provided with a positioning device for connecting the box body with the table tennis table.

Preferably, the positioning device comprises:

the opening of the U-shaped clamping piece is consistent with the ball hitting direction of the ball hitting device, the height of the opening is matched with the thickness of the table tennis table, and a threaded hole is formed in the U-shaped clamping piece;

and the positioning bolt penetrates through the threaded hole to fix the box body and the table tennis table.

Compared with the prior art, the invention has the beneficial effects that:

the controller controls the ball inlet device to feed one table tennis into the ball conveying cylinder each time, the ball conveying device is controlled to convey the ball after the ball is fed into the ball conveying cylinder by the ball inlet device, and the ball hitting device is controlled to hit and send the ball after the ball reaches a specified position, so that one person can practice the ball receiving, the table tennis practice is not limited by trainees, and meanwhile, the economic cost of the table tennis practice is greatly saved.

According to the invention, through the matching of the first electric telescopic rod and the second electric telescopic rod, a table tennis ball is fed into the ball conveying cylinder each time, when the table tennis ball needs to be conveyed, the first electric telescopic rod is shortened, the lowermost table tennis ball enters the ball conveying cylinder, after the table tennis ball enters the ball conveying cylinder, the first electric telescopic rod is extended by the controller, the second electric telescopic rod is shortened by the controller, the table tennis ball moves under the action of gravity, so that the table tennis ball at the second position originally enters the first position and abuts against the first electric telescopic rod, the controller controls the second electric telescopic rod to extend, the table tennis ball at the second position is isolated, the table tennis ball at the first position is prevented from abutting against the table tennis ball at the first position, and only one table tennis ball can be fed in order each time.

In the first embodiment of the invention, the table tennis ball falling into the ball conveying cylinder is subjected to air injection through the compressed air pump, so that the table tennis ball flies out of the ball conveying cylinder, after the table tennis ball flies out of the ball conveying cylinder, the controller controls the second motor, and the second motor drives the first beating bat to beat the flying table tennis ball and launch the table tennis ball to the other side of the table tennis table.

According to the embodiment of the invention, the first motor drives the screw rod to rotate, the screw rod nut moves up and down along the screw rod, the table tennis which enters the table tennis conveying barrel is lifted by the tray, the table tennis is supported out of the upper end of the table tennis conveying barrel, and meanwhile, the gear box is used for carrying out axial transformation, so that the second batting bat can hit the table tennis on the tray and launch the table tennis to the other side of the table tennis table.

The box body is connected with the table tennis table through the U-shaped clamping piece and the positioning bolt, and the box body is detachable and convenient to use when not in use.

Drawings

Fig. 1 is a schematic structural diagram of a table tennis training service device according to an embodiment of the present invention.

Fig. 2 is a schematic top view of a table tennis training serving device according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a table tennis training service device according to a second embodiment of the present invention.

Fig. 4 is a schematic top view of a table tennis training serving device according to a second embodiment of the present invention.

Description of reference numerals:

1-box body, 2-ball inlet hopper, 3-second ball inlet pipe, 4-second electric telescopic rod, 5-first electric telescopic rod, 6-ball transmission barrel, 7-compressed air pump, 8-second motor, 9-gear box, 9-1-first gear, 9-2-second gear, 10-first beating bat, 11-U-shaped fastener, 12-positioning bolt, 13-second connecting rod, 14-first motor, 15-lead screw, 16-lead screw nut, 17-second slot, 18-first connecting rod, 19-tray, 20-connecting bracket, 20-1-first horizontal rod, 20-2-second horizontal rod and 21-second beating bat.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to fig. 1-4, but it should be understood that the scope of the present invention is not limited to the embodiment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Example one

As shown in fig. 1, a table tennis training service apparatus provided in an embodiment of the present invention includes: a box body 1; the ball conveying cylinder 6 is longitudinally arranged in the box body 1, the upper end of the ball conveying cylinder penetrates out of the top surface of the box body 1 and is positioned outside the box body 1, and the lower end of the ball conveying cylinder is fixedly connected with the bottom of the box body 1; the lower part of the goal device obliquely penetrates through the side wall of the box body 1 and is communicated with the ball passing cylinder 6; the ball conveying device conveys the table tennis balls entering the ball conveying cylinder 6 out of the ball conveying cylinder 6; the ball hitting device is arranged outside the box body 1 and used for hitting and sending table tennis balls which are sent out of the ball conveying cylinder 6 by the ball conveying device; the controller is arranged in the box body 1 and is used for controlling the ball inlet device to feed a table tennis ball into the ball conveying cylinder each time, controlling the ball conveying device to convey the ball after the ball is fed into the ball conveying cylinder 6 by the ball inlet device, and controlling the ball hitting device to hit and send the ball after the ball reaches a specified position; the power module is used for supplying power to the ball feeding device, the ball passing device, the ball hitting device and the controller; the ball inlet device, the ball passing device and the ball hitting device are respectively in signal connection with the controller.

The power module is externally connected with a power supply through a power line, the box body 1 can be also provided with a solar cell panel, and the solar cell panel is connected with the power module and used for outdoor table tennis tables, so that the table tennis table is convenient to use.

The controller controls the ball inlet device to feed one table tennis into the ball conveying cylinder each time, the controller controls the ball conveying device to convey the ball after the ball is fed into the ball conveying cylinder through the ball inlet device, and the controller controls the ball hitting device to hit and send the ball after the ball is conveyed to the designated position, so that one person can practice receiving the ball, the table tennis practice is not limited by personnel, and meanwhile, the expenditure of table tennis practice is greatly saved.

Preferably, the goal apparatus includes: the bottom of the ball inlet hopper 2 is provided with an opening through which a table tennis ball can pass; the first ball inlet pipe is vertically arranged, and the upper end of the first ball inlet pipe is connected with an opening at the bottom of the ball inlet hopper 2; the second ball inlet pipe 3 is arranged obliquely downwards, the upper end of the second ball inlet pipe is connected with the lower end of the first ball inlet pipe, and the lower end of the second ball inlet pipe is communicated with the ball passing cylinder 6; the first electric telescopic rod 5 is arranged in the box body 1, is inserted into the second ball inlet pipe 3 after being extended and is positioned at the junction of the second ball inlet pipe 3 and the ball passing cylinder 6; the second electric telescopic rod 4 is arranged in the box body 1, is inserted into the second ball inlet pipe 3 after being extended, and is positioned between the first table tennis and the second table tennis at the lower part in the second ball inlet pipe 3; the first electric telescopic rod 5 and the second electric telescopic rod 4 are respectively connected with the power supply module, and the first electric telescopic rod 5 and the second electric telescopic rod 4 are respectively connected with the controller through signals.

The diameters of the first ball inlet pipe, the second ball inlet pipe 3 and the ball transfer cylinder 6 are larger than the diameter of one table tennis ball and smaller than the diameter of one half table tennis ball, so that the stacking phenomenon of the adjacent table tennis balls is avoided.

The working principle is as follows: the table tennis ball enters the first ball inlet pipe from the ball inlet hopper 2 and then enters the second ball inlet pipe 3, the upper part of the ball inlet hopper 2 is provided with a horn opening, a plurality of table tennis balls can be contained at one time, one table tennis ball can be fed into the ball transfer cylinder 6 each time through the matching action of the first electric telescopic rod and the second electric telescopic rod, when the table tennis ball is fed into the ball transfer cylinder 6, the first electric telescopic rod 5 is shortened, the lowermost table tennis ball enters the ball transfer cylinder 6 under the action of gravity, after the table tennis ball enters the ball transfer cylinder 6, the controller controls the first electric telescopic rod 5 to extend according to the set time, the controller controls the second electric telescopic rod 4 to be shortened, the second electric telescopic rod 4 moves out of the second ball inlet pipe 3, the table tennis ball moves under the action of gravity, so that the table tennis ball originally located at the second position enters the first position and abuts against the first electric telescopic rod 5, and then the controller controls the second electric telescopic rod 4 to extend according to the set time, keep apart the table tennis of second position, avoid the table tennis of second position and the table tennis of first position near for at every turn the goal can only be played one by one, service in order, simple structure, economical and practical.

Preferably, the ball passing device includes: the compressed air pump 7 is arranged outside the box body 1, an air inlet pipe of the compressed air pump 7 is connected with a compressed air bottle, and an air outlet pipe of the compressed air pump 7 penetrates through the bottom of the box body 1 and is communicated with the lower end of the ball transfer cylinder 6; and the compression air pump 7 is respectively connected with the power module and the controller.

Preferably, the ball striking device comprises: the second motor 8 is arranged at the top of the box body 1 through a bracket; the second connecting rod 13 is horizontally arranged, and the first end of the second connecting rod is fixedly connected with the output shaft of the second motor 8 through a coupler; the first beating bat 10 is fixedly connected with the second end of the second connecting rod 13; and the second motor 8 is respectively connected with the power module and the controller.

The working principle is as follows: after the table tennis enters the table tennis conveying cylinder 6, the controller controls the compression air pump to output compressed air according to set time, air injection is carried out on the table tennis falling into the table tennis conveying cylinder 6, the table tennis flies out of the table tennis conveying cylinder 6 according to the starting time of the compression air pump 7, after the set time, the table tennis flies out of the table tennis conveying cylinder 6, the controller controls the second motor 8, and the second motor 8 drives the first hitting bat 10 to rotate for a certain angle to hit the flying table tennis and launch the table tennis to the other side of the table tennis table.

Example two

As shown in fig. 3, the ball passing device includes: a first motor 14 arranged at the bottom in the box body 1; the screw rod 15 is vertically arranged, the lower end of the screw rod is fixedly connected with an output shaft of the first motor 14 through a coupler, and the upper end of the screw rod penetrates through the top of the box body 1 and is positioned outside the box body 1; the screw nut 16 is arranged on the screw rod 15, and the screw rod 15 can move up and down along the screw rod 15 when rotating; a first slot opening is formed in the ball conveying cylinder 6 along the height direction; the first connecting rod 18 is horizontally arranged, the first end of the first connecting rod is fixed on the screw nut 16, and the second end of the first connecting rod penetrates through the slot and is positioned in the ball conveying cylinder 6; the top of the box body 1 is provided with a second slot 17 through which a screw nut 16 and a first connecting rod 18 pass; the tray 19 is arranged in the ball conveying cylinder 6, and the bottom of the tray is fixedly connected with the second end of the first connecting rod 18; the first motor 14 is connected to the power module and the controller, respectively.

The working principle is as follows:

after the table tennis gets into and passes a ball section of thick bamboo 6, fall on tray 19, drive lead screw 15 through first motor 14 and rotate, lead screw nut 16 reciprocates along lead screw 15, first connecting rod 18 drives tray 19 along first line of a slot and lifts the table tennis and move upwards, second line of a slot 17 that lead screw nut 16 and first connecting rod 18 pass through holds in the palm the upper end of passing a ball section of thick bamboo 6 with the table tennis, can hit the table tennis on the tray through first batting bat and hit, launch to the another side of table tennis table.

In order to save energy and also to make the structure simple, it is preferable that the ball striking device includes: the gear box 9 is positioned at the upper part of the screw rod 15; the gear box 9 is internally provided with: the first gear 9-1 is horizontally arranged and fixedly sleeved on the screw rod 15; the second gear 9-2 is vertically arranged, fixedly sleeved on the connecting bracket 20 and meshed with the first gear 9-1; and the second beating bat 21 is fixedly connected with the connecting bracket 20.

The working principle is as follows:

the first motor 14 rotates to drive the screw rod 15 to rotate, meanwhile, the first gear 9-1 fixed at the top of the screw rod rotates along with the screw rod, the first gear 9-1 drives the second gear 9-2 to rotate, the first gear 9-1 can rotate fast, the second gear 9-2 rotates slowly, and the second gear 9-2 rotates to drive the connecting support 20 to drive the second striking bat 21 to rotate to strike the table tennis at the top of the tray 19.

In order to make the second striking plate 21 located at one side of the ball transfer cylinder 6 for striking a ball, it is preferable that the connecting bracket 20 includes: a first horizontal rod 20-1, the first end of which is fixedly connected with a second beating bat 21; a first end of the second horizontal rod 20-2 is fixedly connected with the second gear 9-2; and the vertical rod is connected between the second end of the first horizontal rod 20-1 and the second end of the second horizontal rod 20-2.

The modification of the connecting bracket 20 may be replaced by a modification of the first link 18 so that the tray 19 is not in the same plane as the second beat 21.

In order to facilitate the connection between the box body 1 and the table board of the table tennis table, preferably, a positioning device is further disposed at the bottom of the box body 1 for connecting the box body 1 with the table tennis table.

Preferably, the positioning device comprises: the U-shaped clamping piece 11 has an opening consistent with the batting direction of the batting device, the height of the opening is matched with the thickness of the table tennis table, and a threaded hole is formed in the U-shaped clamping piece 11; and the positioning bolt 12 penetrates through the threaded hole to fix the box body 1 and the table tennis table.

Be connected with table tennis table through U type fastener 11, fix box and table tennis table through positioning bolt 12, can dismantle convenient to use when not using.

The controller controls the ball inlet device to feed one table tennis into the ball conveying cylinder each time, the ball conveying device is controlled to convey the ball after the ball is fed into the ball conveying cylinder by the ball inlet device, and the ball hitting device is controlled to hit and send the ball after the ball is conveyed to a designated position, so that one person can practice receiving the ball, the table tennis practice is not limited by trainees, and the family expenses of the table tennis practice are greatly saved.

According to the invention, through the matching of the first electric telescopic rod and the second electric telescopic rod, a table tennis ball is fed into the ball conveying cylinder each time, when the table tennis ball needs to be conveyed, the first electric telescopic rod is shortened, the lowermost table tennis ball enters the ball conveying cylinder, after the table tennis ball enters the ball conveying cylinder, the first electric telescopic rod is extended by the controller, the second electric telescopic rod is shortened by the controller, the table tennis ball moves under the action of gravity, so that the table tennis ball at the second position originally enters the first position and abuts against the first electric telescopic rod, the controller controls the second electric telescopic rod to extend, the table tennis ball at the second position is isolated, the table tennis ball at the first position is prevented from abutting against the table tennis ball at the first position, and only one table tennis ball can be fed in order each time.

In the first embodiment of the invention, the table tennis ball falling into the ball conveying cylinder is subjected to air injection through the compressed air pump, so that the table tennis ball flies out of the ball conveying cylinder, after the table tennis ball flies out of the ball conveying cylinder, the controller controls the second motor, and the second motor drives the first beating bat to beat the flying table tennis ball and launch the table tennis ball to the other side of the table tennis table.

According to the embodiment of the invention, the first motor drives the screw rod to rotate, the screw rod nut moves up and down along the screw rod, the table tennis which enters the table tennis conveying barrel is lifted by the tray, the table tennis is supported out of the upper end of the table tennis conveying barrel, and meanwhile, the gear box is used for carrying out axial transformation, so that the second batting bat can hit the table tennis on the tray and launch the table tennis to the other side of the table tennis table.

The box body is connected with the table tennis table through the U-shaped clamping piece and the positioning bolt, and the box body is detachable and convenient to use when not in use.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.