CN221181586U - Foldable ping-pong table with serve function - Google Patents

Abstract

The utility model relates to the technical field of sports equipment, and provides a foldable table tennis table with a ball sending function, which comprises a table body and a ball sending unit, wherein the ball sending unit comprises a power box, a ball sending rod, an upper ball pipe and a ball sending pipe; through the technical scheme, the problems of high work difficulty and high strength of a service man in the long-time table tennis training process in the related technology are solved.

Description

Foldable ping-pong table with serve function

Technical Field

The utility model relates to the technical field of sports equipment, in particular to a foldable table tennis table with a ball serving function.

Background

In the prior art, in order to facilitate the table tennis player to take a ball and train the ball, each table is generally provided with a service person, and the service person feeds the ball to the player, thereby facilitating the training of the remote player; in order to ensure training effect and training intensity, most athletes can train for a long time, which can definitely aggravate the workload and the work difficulty of a service man, and meanwhile, a large amount of balls are scattered around a table due to a large amount of balls serving and hitting, so that the ball returning difficulty of the table tennis is increased, the recovery efficiency is reduced, and the prior art is improved and upgraded, and the work difficulty and the work intensity of the service man are reduced.

Disclosure of utility model

The utility model provides a foldable table tennis table with a ball serving function, which solves the problems of high work difficulty and high strength of a pitching person in a long-time table tennis training process in the related art.

The technical scheme of the utility model is as follows:

The utility model provides a collapsible ping-pong table with play ball function, includes the table body, still includes the play ball unit, play ball unit includes the headstock, goes up bulb and play ball pipe, the headstock sets up one side of the table body, go up the bulb setting and be in on the headstock, go up the first ball mouth of having seted up on the bulb, the one end slip setting of play ball pole is in go up the bulb intraductal, the other end of play ball with the power take off axle head of headstock articulates, the one end setting of play ball pipe is in go up keep away from on the bulb one side of headstock, the other end of play ball pipe is located the top of the table body.

As a further technical scheme, the power box comprises a box body, a first driving machine, a rocking handle and a swinging rod, wherein the box body is arranged on one side of the table body, the first driving machine is arranged in the box body, the rocking handle is arranged in the box body and fixedly connected with an output shaft of the first driving machine, one end of the swinging rod is hinged to the rocking handle, and the other end of the rocking handle is hinged to the ball serving rod.

As a further technical scheme, the device further comprises a processor, wherein the processor is arranged in the box body and is electrically connected with the first driving machine, and one end, far away from the rocking handle, of the billiard cue is provided with a pressure sensor electrically connected with the processor.

As a further technical scheme, offer first recess on the box, it has first landing leg to articulate in the first recess, it has the pull ring to articulate to keep away from on the box one side of first recess.

As a further technical scheme, the ball stopping seat comprises a ball stopping plate and a ball stopping seat, wherein the ball stopping seat is arranged in the upper ball pipe, and the ball stopping plate is hinged to the ball stopping seat.

As a further technical scheme, a first bent pipe is connected between the upper ball pipe and the service pipe, a first through hole is formed in the first bent pipe, and a plurality of rolling shafts are rotatably arranged in the first through hole.

As a further technical scheme, the tee pipe includes first straight tube, second return bend and second straight tube, the one end of first straight tube with first return bend intercommunication, the other end of first straight tube is provided with the second return bend, the second straight tube sets up keep away from on the second return bend the one end of first straight tube, the second through-hole has been seted up on the second return bend, the second through-hole internal rotation is provided with a plurality of the roll axis, the exit direction of second straight tube is decurrent and is located the top of the table body, the intercommunication is provided with the third straight tube on the second straight tube.

As a further technical scheme, the novel desk further comprises a second supporting leg, a first support, a second support and a lock pin, wherein the second supporting leg is hinged to one side, close to the ground, of the desk body, the first support is hinged to the second supporting leg, the second support is hinged to the desk body, a first locking hole is formed in the first support, a second locking hole is formed in the second support, and the lock pin penetrates through the first locking hole and the second locking hole at the same time.

As a further technical scheme, still include first extension board, second extension board and middle level board, the middle level board sets up on the table body and with form the ball return chamber between the table body, it has to articulate respectively on the two sides that keep away from relatively on the middle level board first extension board and second extension board, be located after the first extension board is expanded the below of service pipe, the second extension board with overlap joint department of middle level board has second recess and third recess, the second recess with the third recess is around forming the ball return notch that is used for the table tennis to pass through, be located on the second extension board one side of third recess is provided with the ball guide sloping block, be located on the table body the ball return sloping block top is located on the table body be close to the corner of table body has seted up first ball return mouth, first ball return chamber with return position is equipped with on the table body return pipe intercommunication between the ball return chamber and the ball return mouth.

As a further technical scheme, the novel table further comprises a plurality of ball return protection frames, wherein one ball return protection frame is hinged to the first expansion plate, the other ball return protection frame is arranged on the second expansion plate, the rest ball return protection frames are hinged to the table body, and ball return protection nets are arranged on the ball return protection frames.

The working principle and the beneficial effects of the utility model are as follows:

The utility model provides a foldable table tennis table with a ball serving function, which specifically comprises a table body and a ball serving unit, wherein the ball serving unit comprises a power box, a ball serving rod, an upper ball pipe and a ball serving pipe, and the power box comprises a box body, a first driving machine, a rocking handle and a rocking rod; when the table tennis ball box is used, the table tennis ball is placed at the first ball port, falls into the upper ball pipe from the first ball port, and starts the first driving machine, wherein the first driving machine adopts an electric driving motor, and the rocking handle is driven to rotate in the box body after the first driving machine is started. The rocking handle is in a shape like a Chinese character 'ji', the rocking bar is provided with an end A and an end B, wherein the end A is hinged with the middle cross bar of the rocking handle, and the end B is hinged with the ball-serving bar; the rocking handle can drive the A end and carry out reciprocating circular motion when rotating, and the motion of A end can drive B end and tee shot pole and reciprocate in last bulb, and tee shot pole can take place extrusion contact with the table tennis that falls into in the last bulb at reciprocating sliding in-process, in pushing the tee shot with the help of the extrusion of tee shot pole, then fall on the table body from the export of tee shot pipe, make things convenient for training personnel to catch the ball and carry out batting training, reduced the operation of tee shot simultaneously, reduced tee shot's work degree of difficulty and intensity. According to actual training demand, can increase the table body width, service unit quantity increases to two, is located the both sides of the table body respectively, makes things convenient for two sportsmen to carry out the training of table tennis simultaneously.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the junction of the power box, upper bulb and service pipe of the present utility model;

FIG. 3 is a schematic view of the internal structure of the power box and tee of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the structure of the first elbow of the present utility model;

FIG. 6 is a schematic view of a structure of a tee according to the present utility model;

FIG. 7 is a partial enlarged view at B in FIG. 6;

figure 8 is a schematic view of the structure of the table body of the present utility model;

FIG. 9 is an enlarged view of a portion of FIG. 8 at C;

FIG. 10 is a partial enlarged view at D in FIG. 8;

In the figure: 1. the ball-returning device comprises a table body, 2, a power box, 3, a ball sending rod, 4, an upper ball pipe, 5, a ball sending pipe, 6, a box body, 7, a first driving machine, 8, a rocking handle, 9, a rocking rod, 10, a processor, 11, a first groove, 12, a first supporting leg, 13, a pull ring, 14, a ball stopping plate, 15, a ball stopping seat, 16, a first bent pipe, 17, a first through hole, 18, a rolling shaft, 19, a first straight pipe, 20, a second bent pipe, 21, a second straight pipe, 22, a second through hole, 23, a third straight pipe, 24, a second supporting leg, 25, a first support, 26, a second support, 27, a locking pin, 28, a first expansion plate, 29, a second expansion plate, 30, a middle plate, 31, a second groove, 32, a third groove, 33, a ball returning notch, 34, a ball guiding oblique block, 35, a first ball returning port, 36, a ball returning pipe, 37, a second ball returning port, 38 and a ball protecting frame.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 10, this embodiment proposes a foldable table tennis table with a ball serving function.

The utility model provides a collapsible ping-pong table with serve function, including the table body 1, still include the serve unit, serve the unit and include headstock 2, serve pole 3, go up bulb 4 and serve the bulb 5, headstock 2 sets up in one side of the table body 1, go up bulb 4 setting on headstock 2, go up the first ball mouth of having seted up on the bulb 4, the one end slip setting of serve pole 3 is in last bulb 4, the other end of serve pole 3 is articulated with the power take off axle head of headstock 2, the one end of serve the bulb 5 sets up on last bulb 4 and keeps away from one side of headstock 2, the other end of serve the bulb 5 is located the top of the table body 1.

Further, the power box 2 comprises a box body 6, a first driving machine 7, a rocking handle 8 and a swinging rod 9, the box body 6 is arranged on one side of the table body 1, the first driving machine 7 is arranged in the box body 6, the rocking handle 8 is arranged in the box body 6 and fixedly connected with an output shaft of the first driving machine 7, one end of the swinging rod 9 is hinged to the rocking handle 8, and the other end of the rocking handle 8 is hinged to the service rod 3.

In this embodiment, as shown in fig. 1 to 3, a foldable table tennis table with a ball serving function is provided, which specifically includes a table body 1 and a ball serving unit, wherein the ball serving unit includes a power box 2, a ball serving bar 3, an upper ball pipe 4 and a ball serving pipe 5, and the power box 2 includes a box body 6, a first driving machine 7, a rocking handle 8 and a rocking rod 9; when the table tennis ball is used, the table tennis ball is placed at the first ball port, falls into the upper ball tube 4 from the first ball port, the first driving machine 7 is started, the first driving machine 7 is an electric driving motor, and the rocking handle 8 is driven to rotate in the box body 6 after the first driving machine 7 is started. The rocking handle 8 is in a shape like a Chinese character 'ji', the rocking rod 9 is provided with two ends A and B, wherein the end A is hinged with the middle cross bar of the rocking handle 8, and the end B is hinged with the ball serving rod 3; the rocking handle 8 can drive the A end and carry out reciprocating circular motion when rotating, and the motion of A end can drive B end and tee pole 3 and reciprocate in last bulb 4, and tee pole 3 can take place extrusion contact with the table tennis that falls into in the last bulb 4 at the gliding in-process of reciprocation, in pushing the table tennis to tee pipe 5 with the extrusion of tee pole 3, then fall on the table body 1 from tee pipe 5's export, make things convenient for training personnel to catch the ball and carry out batting training, reduced the operation of tee simultaneously, reduced tee man's work degree of difficulty and intensity. According to actual training demand, can increase the width of the table body 1, the service unit quantity increases to two, is located the both sides of the table body 1 respectively, makes things convenient for two sportsmen to carry out the training of table tennis simultaneously.

Further, the ball-serving bar further comprises a processor 10, the processor 10 is arranged in the box 6 and is electrically connected with the first driving machine 7, and a pressure sensor electrically connected with the processor 10 is arranged at one end, far away from the rocking handle 8, of the ball-serving bar 3.

Further, a first groove 11 is formed in the box body 6, a first supporting leg 12 is hinged in the first groove 11, and a pull ring 13 is hinged on one side, away from the first groove 11, of the box body 6.

In this embodiment, as shown in fig. 1 to 4, a processor 10, a pressure sensor and a first supporting leg 12 are added, when in use, after the billiard cue 3 is in extrusion contact with a table tennis ball, the pressure sensor detects a pressure value and converts the detected pressure value into an electrical signal to be transmitted to the processor 10, and the processor 10 receives the electrical signal transmitted by the pressure sensor and then converts and analyzes the electrical signal to determine whether the pressure value exceeds a normal set range; if the first ball port is stuck, after the ball serving bar 3 is contacted with the table tennis, the pressure value is continuously increased, the table tennis is easy to be crushed, meanwhile, the pressure value information received by the processor 10 is synchronously increased until the pressure value information exceeds a set range, at the moment, the processor 10 can input a signal for stopping operation to the first driving machine 7, then the processor 10 can regulate the first driving machine 7 to rotate reversely at a certain angle, when the first driving machine 7 rotates reversely, the table tennis stuck at the first ball port can fall into the ball feeding pipe 4, then the first driving machine 7 rotates positively again, the ball feeding operation of the table tennis is carried out, and the normal ball discharging in the ball feeding pipe 5 is ensured. Simultaneously with the help of articulated first landing leg 12, can adjust the angle of putting of box 6, make things convenient for the stability of box 6 to put, when not needing first landing leg 12, can withdraw first landing leg 12 in first recess 11, make things convenient for the accomodating of first landing leg 12, can conveniently carry and draw box 6 through pull ring 13 simultaneously.

Further, the ball stopping plate 14 and the ball stopping seat 15 are further included, the ball stopping seat 15 is arranged in the upper ball tube 4, and the ball stopping plate 14 is hinged to the ball stopping seat 15.

In this embodiment, as shown in fig. 1 to 4, a ball stop plate 14 and a ball stop seat 15 are added in the upper ball tube 4, wherein the number of the ball stop seats 15 and the ball stop plates 14 is two and distributed in the upper ball tube 4 in a circumferential manner; the ball stopping seat 15 is positioned at one side of the first ball opening, which is far away from the billiard cue 3; when the table tennis ball is used, the table tennis ball enters the upper ball pipe 4 through the first ball port, and moves along the upper ball pipe 4 under the pushing action of the ball serving rod 3 and is in extrusion contact with the ball stopping plates 14, and the two ball stopping plates 14 rotate in the direction away from each other under the extrusion action of the table tennis ball; when the table tennis passes over the ball stopping plate 14, the billiard cue 3 is separated from the table tennis at this time and slides in a direction away from the table tennis; the ball stopping plate 14 rotates in the direction of returning to the initial position under the action of dead weight until the initial position is restored, at the moment, the table tennis ball is extruded with the ball stopping plate 14 again, and the table tennis ball is prevented from falling back to the first ball opening by the blocking of the ball stopping plate 14; the one-way advance of the table tennis ball is ensured by the ball stopping plate 14 and the ball stopping seat 15, and the occurrence of the reflux phenomenon is avoided.

Further, a first elbow pipe 16 is connected between the upper ball pipe 4 and the service pipe 5, a first through hole 17 is formed in the first elbow pipe 16, and a plurality of rolling shafts 18 are rotatably arranged in the first through hole 17.

Further, the tee pipe 5 comprises a first straight pipe 19, a second bent pipe 20 and a second straight pipe 21, one end of the first straight pipe 19 is communicated with the first bent pipe 16, the other end of the first straight pipe 19 is provided with the second bent pipe 20, the second straight pipe 21 is arranged on the second bent pipe 20 and far away from one end of the first straight pipe 19, a second through hole 22 is formed in the second bent pipe 20, a plurality of rolling shafts 18 are rotationally arranged in the second through hole 22, the outlet direction of the second straight pipe 21 is inclined downwards and is located above the table body 1, and a third straight pipe 23 is communicated with the second straight pipe 21.

In this embodiment, as shown in fig. 1 to 7, in order to facilitate the table tennis to move from the upper ball tube 4 into the service tube 5, the first elbow 16 is added at the joint between the upper ball tube 4 and the service tube 5, and the rolling shaft 18 is added at the turning arc edge of the first elbow 16, and by means of the rolling connection of the rolling shaft 18, the sliding friction between the table tennis and the inner wall of the arc edge of the first elbow is adjusted to be rolling friction, so that the forward resistance of the table tennis is reduced, the abrasion when the table tennis contacts with the first elbow 16 is reduced, and the service cycle of the table tennis is prolonged.

Meanwhile, in order to facilitate the free falling of the table tennis ball above the table body 1, the service pipe 5 is thinned, the service pipe 5 comprises a first straight pipe 19, a second bent pipe 20 and a second straight pipe 21, the table tennis ball enters the first straight pipe 19 section after passing through the first bent pipe 16, the first straight pipe 19 is straight upwards, a plurality of rolling shafts 18 are added at the turning arc edge on the second bent pipe 20, the abrasion of the table tennis ball is reduced, the outlet of the second straight pipe 21 is positioned above the table body 1 through the turning and guiding of the second bent pipe 20, and the outlet height of the second straight pipe 21 is lower than the outlet height of the second bent pipe 20; after the table tennis passes through the second bent pipe 20, the table tennis is made to fall freely along the second straight pipe 21, and the falling point position of the table tennis can be properly adjusted by adjusting the outlet direction of the second straight pipe 21, so that the training personnel can conveniently carry out ball catching and ball hitting training; meanwhile, the ball repairing operation can be manually performed in the ball serving pipe 5 through the third straight pipe 23, so that the continuous ball serving of the table tennis is ensured.

Further, the table further comprises a second supporting leg 24, a first support 25, a second support 26 and a locking pin 27, wherein the second supporting leg 24 is hinged to one side, close to the ground, of the table body 1, the first support 25 is hinged to the second supporting leg 24, the second support 26 is hinged to the table body 1, a first locking hole is formed in the first support 25, a second locking hole is formed in the second support 26, and the locking pin 27 penetrates through the first locking hole and the second locking hole at the same time.

In this embodiment, as shown in fig. 1 to 8, a second supporting leg 24, a first bracket 25, a second bracket 26 and a locking pin 27 are added below the table body 1, and the number of the second supporting leg 24, the first bracket 25, the second bracket 26 and the locking pin 27 are two and are respectively distributed on two opposite sides of the table body 1; in use, the second leg 24 is rotated away from the table body 1 until the second leg 24 is in a vertical position with respect to the table body 1, and then the second leg 24 is placed on the floor; then the first bracket 25 and the second bracket 26 are rotated towards the direction close to the ground until the first locking hole on the first bracket 25 is overlapped with the second locking hole on the second bracket 26, then the lock pin 27 passes through the first locking hole and the second locking hole to finish hungry fixation between the first bracket 25 and the second bracket 26, at the moment, a part of the table body 1 is a first edge, the second supporting leg 24 is a second edge, the first bracket 25 and the second bracket 26 are combined to form a third edge, and the whole forms a triangle to stably support the table body 1.

Further, still include first expansion board 28, second expansion board 29 and middle level board 30, middle level board 30 sets up on table body 1 and forms the ball return chamber with table body 1 between, it has first expansion board 28 and second expansion board 29 to articulate respectively on the both sides that keep away from relatively on the middle level board 30, the below that is located the sending out ball 5 after the expansion of first expansion board 28, second recess 31 and third recess 32 have been seted up at the overlap joint punishment of second expansion board 29 and middle level board 30, second recess 31 and third recess 32 are around forming the ball return notch 33 that is used for the table tennis to pass through, be provided with ball guide sloping block 34 on the one side that is located third recess 32 on the second expansion board 29, be provided with the ball return arc board on the table body 1 near one side of second expansion board 29, be located ball return arc board top after the expansion of second expansion board 29, first ball return port 35 and ball return chamber intercommunication are seted up to the bight that is close to table body 1 on the table body 1, the intercommunication is provided with first ball return port 35, the intercommunication is provided with ball return port 36 on the first ball return port 35 and the upper ball return pipe 4, the intercommunication is provided with ball return port 36 near the ball return chamber 37 on the first return board.

Further, a plurality of ball return protection frames 38 are further included, wherein one ball return protection frame 38 is hinged on the first expansion plate 28, the other ball return protection frame 38 is arranged on the second expansion plate 29, the rest ball return protection frames 38 are hinged on the table body 1, and a ball return protection net is arranged on the ball return protection frames 38.

In this embodiment, as shown in fig. 1 to 10, in order to facilitate recovery and recycling of table tennis, a first expansion plate 28, a second expansion plate 29, a middle layer plate 30, a ball return protection frame 38 and a ball return protection net are added to the table body 1; the ball return protection frame 38 on the first expansion board 28 is fixedly connected with one end of the ball return protection net, the ball return protection frame 38 on the second expansion board 29 is fixedly connected with the other end of the ball return protection net, and the rest ball return protection frames 38 are fixedly connected with the middle position of the ball return protection net; the upper side of the middle layer plate 30 has a certain height difference, the height gradually decreases along the direction from the second expansion plate 29 to the first expansion plate 28, and the second ball return port 37 is the lowest position on the middle layer plate 30; the upper surface of the corresponding table body 1 is in the same state as the upper surface of the middle layer plate 30, and the position of the first ball return opening 35 is the position with the lowest height of the upper surface of the table body 1; the second expansion plate 29 is arranged obliquely to the ground, and one side of the expanded second expansion plate 29 far away from the table body 1 is positioned at a high position; when in use, the table body 1 is placed in place, and then the first expansion plate 28 and the second expansion plate 29 are rotated in the directions away from each other until the first expansion plate and the second expansion plate are not rotated; as the first expansion plate 28 and the second expansion plate 29 rotate, the ball return protective net is gradually spread out, which is not shown in the ball return protective net diagram; then the power box 2 is started, the ball serving bar 3 starts to slide and pushes the table tennis into the ball serving pipe 5, along with the free falling of the table tennis, a training person hits the table tennis, under the blocking action of the ball return protective net, the table tennis finally falls on the middle layer plate 30 or the second expansion plate 29, when the table tennis falls on the middle layer plate 30, the table tennis rolls towards the direction close to the second ball return opening 37 under the action of the height difference of the upper surface of the middle layer plate 30 until the table tennis falls into the second ball return opening 37, then enters into the ball return cavity, then enters into the ball return pipe 36 from the first ball return opening 35, finally flows into the upper ball pipe 4 from the ball return pipe 36, and the recovery and recycling of the table tennis are completed. If the table tennis ball falls on the second expansion plate 29, the second expansion plate 29 which is arranged along the inclination rolls towards the direction close to the ball return notch 33, the ball guide inclined block 34 ensures that the table tennis ball falling on the second expansion plate 29 can roll to the ball return notch 33 completely, then the table tennis ball passes through the ball return notch 33 to enter the ball return cavity, under the action of the upper surface of the table body 1, the table tennis ball finally rolls to the first ball return notch 35, and enters the upper ball pipe 4 through the conveying of the ball return pipe 36, thus completing the recovery and recycling of the table tennis ball.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a collapsible ping-pong table with service function, includes the table body (1), its characterized in that still includes service unit, service unit includes headstock (2), service pole (3), goes up bulb (4) and service pipe (5), headstock (2) set up one side of the table body (1), go up bulb (4) setting and be in on headstock (2), go up the first ball mouth of having seted up on bulb (4), the one end slip of service pole (3) sets up in last bulb (4), the other end of service pole (3) with the power take-off axle head of headstock (2) articulates, the one end setting of service pipe (5) is in keep away from on last bulb (4) one side of headstock (2), the other end of service pipe (5) is located the top of the table body (1).

2. The foldable table tennis table with the ball serving function according to claim 1, wherein the power box (2) comprises a box body (6), a first driving machine (7), a rocking handle (8) and a swinging rod (9), the box body (6) is arranged on one side of the table body (1), the first driving machine (7) is arranged in the box body (6), the rocking handle (8) is arranged in the box body (6) and fixedly connected with an output shaft of the first driving machine (7), one end of the swinging rod (9) is hinged to the rocking handle (8), and the other end of the rocking handle (8) is hinged to the ball serving bar (3).

3. The foldable table tennis table with the ball serving function according to claim 2, further comprising a processor (10), wherein the processor (10) is arranged in the box body (6) and is electrically connected with the first driving machine (7), and a pressure sensor electrically connected with the processor (10) is arranged at one end, away from the rocking handle (8), of the ball serving bar (3).

4. The foldable table tennis table with the ball serving function according to claim 2, wherein the box body (6) is provided with a first groove (11), a first supporting leg (12) is hinged in the first groove (11), and a pull ring (13) is hinged on one side, away from the first groove (11), of the box body (6).

5. The foldable table tennis table with the ball serving function according to claim 1, further comprising a ball stopping plate (14) and a ball stopping seat (15), wherein the ball stopping seat (15) is arranged in the upper ball pipe (4), and the ball stopping plate (14) is hinged to the ball stopping seat (15).

6. The foldable table tennis table with the ball serving function according to claim 1, wherein a first bent pipe (16) is connected between the upper ball pipe (4) and the ball serving pipe (5), a first through hole (17) is formed in the first bent pipe (16), and a plurality of rolling shafts (18) are rotatably arranged in the first through hole (17).

7. The foldable table tennis table with the ball serving function according to claim 6, wherein the ball serving pipe (5) comprises a first straight pipe (19), a second bent pipe (20) and a second straight pipe (21), one end of the first straight pipe (19) is communicated with the first bent pipe (16), the other end of the first straight pipe (19) is provided with the second bent pipe (20), the second straight pipe (21) is arranged on one end, far away from the first straight pipe (19), of the second bent pipe (20), a second through hole (22) is formed in the second bent pipe (20), a plurality of rolling shafts (18) are rotatably arranged in the second through hole (22), the outlet direction of the second straight pipe (21) is inclined downwards and is located above the table body (1), and a third straight pipe (23) is arranged on the second straight pipe (21) in a communicating mode.

8. The foldable table tennis table with the ball serving function according to claim 1, further comprising a second supporting leg (24), a first support (25), a second support (26) and a lock pin (27), wherein the second supporting leg (24) is hinged to one side, close to the ground, of the table body (1), the first support (25) is hinged to the second supporting leg (24), the second support (26) is hinged to the table body (1), a first locking hole is formed in the first support (25), a second locking hole is formed in the second support (26), and the lock pin (27) simultaneously penetrates through the first locking hole and the second locking hole.

9. The foldable table tennis table with a ball serving function according to claim 1, further comprising a first expansion plate (28), a second expansion plate (29) and a middle layer plate (30), wherein the middle layer plate (30) is arranged on the table body (1) and forms a ball return cavity with the table body (1), the first expansion plate (28) and the second expansion plate (29) are respectively hinged on two sides relatively far away from the middle layer plate (30), the first expansion plate (28) is arranged below the ball serving pipe (5) after being unfolded, the second expansion plate (29) and the middle layer plate (30) are respectively provided with a second groove (31) and a third groove (32), the second groove (31) and the third groove (32) surround a ball return notch (33) for the passing of a table tennis ball, a guide block (34) is arranged on one side of the second expansion plate (29) which is positioned on the third groove (32), the ball return cavity is arranged on the second expansion plate (29) and is close to the first expansion plate (35) which is arranged on the second expansion plate (29) and is arranged on the second expansion plate (35) which is arranged near the ball return cavity (1), the ball return device is characterized in that a ball return pipe (36) is arranged between the first ball return port (35) and the upper ball pipe (4) in a communicating mode, and a second ball return port (37) communicated with the ball return cavity is formed in the middle layer plate (30) at a position close to the first ball return port (35).

10. The foldable table tennis table with a ball serving function according to claim 9, further comprising a plurality of ball return protection frames (38), wherein one ball return protection frame (38) is hinged on the first expansion board (28), the other ball return protection frame (38) is arranged on the second expansion board (29), the rest ball return protection frames (38) are hinged on the table body (1), and ball return protection nets are arranged on the ball return protection frames (38).