CN209490442U - A kind of table tennis intelligent coach machine ball feeding device - Google Patents

A kind of table tennis intelligent coach machine ball feeding device Download PDF

Info

Publication number
CN209490442U
CN209490442U CN201920032439.0U CN201920032439U CN209490442U CN 209490442 U CN209490442 U CN 209490442U CN 201920032439 U CN201920032439 U CN 201920032439U CN 209490442 U CN209490442 U CN 209490442U
Authority
CN
China
Prior art keywords
release
ball
cavity
shell
screw rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920032439.0U
Other languages
Chinese (zh)
Inventor
姚铁权
陈玮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Lipetsk Oder Table Tennis Intelligent Training System Technology Co Ltd
Original Assignee
Tianjin Lipetsk Oder Table Tennis Intelligent Training System Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Lipetsk Oder Table Tennis Intelligent Training System Technology Co Ltd filed Critical Tianjin Lipetsk Oder Table Tennis Intelligent Training System Technology Co Ltd
Priority to CN201920032439.0U priority Critical patent/CN209490442U/en
Application granted granted Critical
Publication of CN209490442U publication Critical patent/CN209490442U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to table tennis release technical fields, especially a kind of table tennis intelligent coach machine ball feeding device, including pedestal, the upper end of the pedestal is connected with shell, the upper end of the shell is connected with ball-collecting box, the upper end of the shell is bolted with out bulb by bolt, the inner cavity of the shell is connected with release channel, the inner cavity bottom end of the ball-collecting box is equipped with elongated slot, mounting cup is installed on the outside of the elongated slot, release motor is installed on the left of the inner cavity of the shell, the inner cavity of the shell is bolted with fixed cover by bolt, release active connecting shaft is connected on the right side of the release motor, the utility model it is reasonable in design, it is easily installed disassembly, be conducive to safeguard, and structure is simple, maintenance cost is the bottom of compared with, and device volume is smaller, it occupies little space, be conducive to improve the stability of release, and it is convenient to clean dust Accumulation and foreign matter, and convenient for the abnormal problem of automatic reply card ball, effectively improve intelligence degree.

Description

A kind of table tennis intelligent coach machine ball feeding device
Technical field
The utility model relates to table tennis release technical fields more particularly to a kind of table tennis intelligent coach machine release to fill It sets.
Background technique
Table tennis is the ball sport of world pop, as a body-building brain tonic, relieves stress, cultivates one's taste Light-type movement, have the characteristics that upper hand is easy, suitable for people of all ages, motion requirement amount is small, in order to meet table tennis breaktest Demand, occur table tennis golf emitter in the market, user caused not need special messenger's training mate not only, can also make sportsman come Oneself playing skill is improved, new hand can also be made to practice playing skill, master a skill, achievees the purpose that quickly to go up hand.
Occur various table tennis ball feeding devices currently on the market, most of unreasonable structural designs cause More difficulty difficult in maintenance is assembled, and the volume of part table tennis ball feeding device is excessive, occupied space is unreasonable, leads to its use Limitation is larger, and most of existing table tennis ball feeding device all has the phenomenon that card ball, and it is extremely inconvenient and existing to use For some devices in card ball usually without automatic counter-measure problem, intelligence degree is lower, and existing device is quickly being run When, release stability is substantially all poor, and dust accretions and foreign matter are not easy to cleaning difficulty in table tennis ball feeding device, practical Property is poor, for this purpose, we provide a kind of table tennis intelligent coach machine ball feeding device to solve the problems, such as this.
Utility model content
Purpose of the utility model is to solve disadvantage existing in the prior art, a kind of table tennis of proposition is intelligently taught Practice machine ball feeding device.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of table tennis intelligent coach machine ball feeding device is designed, including pedestal, the upper end of the pedestal are connected with shell, institute The upper end for stating shell is connected with ball-collecting box, and the upper end of the shell is bolted with out bulb by bolt, and the inner cavity of the shell connects It is connected to release channel, the inner cavity bottom end of the ball-collecting box is equipped with elongated slot, is equipped with mounting cup, the shell on the outside of the elongated slot Inner cavity on the left of release motor is installed, the inner cavity of the shell is bolted with fixed cover, the right side of the release motor by bolt Side is connected with release active connecting shaft, and the release active connecting shaft is located at the inner cavity of fixed cover, and the inner cavity of the fixed cover is set There are the release active bearings to socket-connect with release active connecting shaft, the inner cavity of the fixed cover, which is equipped with, actively connect axle position with release The release screw rod axis to match is set, is socketed with release screw rod on the outside of the release screw rod axis.
Preferably, it equidistantly is connected with shock structure on the left of the lower end of the pedestal, the lower end of the shock structure connects jointly to be subtracted Seat is shaken, the upper end of the cushion socket is connected with pedestal.
Preferably, dust-collecting box being bolted with by bolt in the middle part of the lower end of the pedestal, the lower end of the pedestal is equipped with notch, The lower end of the pedestal is bolted with the fixed frame to match with notch position, the inner cavity lower part connection of the fixed frame by bolt There is stainless (steel) wire.
Preferably, the inner cavity of the shell is bolted with the first mounting base, the inner cavity card of first mounting base by bolt It is connected to the driven bearing of release, the inner cavity of the driven bearing of release is connected with the driven connecting shaft of release, and the release is driven The left side of connecting shaft is connected with release screw rod axis.
Preferably, it is socketed on the right side of the release screw rod axis and moves back ball spring, and the left side of the release screw rod axis It is connected with release ratchet shaft, and the release ratchet shaft is located at the inner cavity of fixed cover, the left side of the release ratchet shaft and release Active connecting shaft is connected.
Preferably, it is connected with release gear on the right side of the driven connecting shaft of the release, the inner cavity of the shell passes through bolt It is bolted with the second mounting base, the inner cavity of second mounting base is connected with ball-moving arm bearing, and the inner cavity of the ball-moving arm bearing connects Be connected to ball-moving arm, the outer lower portion of the ball-moving arm is connected with the ball-moving arm gear being meshed with release gear, the slot it is upper End, which runs through ball-collecting box and extends to its top, is connected with group ball agitating device.
Preferably, the race diameter of the ball-moving arm gear is larger compared with release gear race diameter, and its ball-moving arm Transmission ratio between gear, release gear and release screw rod axis, release gear is 1:2.
Preferably, described group of ball agitating device includes the stirring rod being connected with ball-moving arm, the inner cavity of the ball-collecting box Bottom end is symmetrically arranged with matched collection ball cylinder, and the outside of the mounting cup is equipped with the entrance to match with stirring rod position Mouthful.
The utility model proposes a kind of table tennis intelligent coach machine ball feeding device, beneficial effect is:
One: the utility model is equipped with release ratchet shaft by fixed cover inner cavity, and is distinguished by the two sides of release ratchet shaft It is mutually clamped with release screw rod axis and release active connecting shaft, and is equipped with by the outside of release screw rod axis and moves back ball spring, Convenient for when table tennis card ball, release screw rod will receive the active force contrary with release, and then release screw extruding moves back ball Spring, release ratchet shaft and release screw rod are detached from, and make release screw rod in the presence of displacement backward, convenient for releasing the abnormal shape of card ball State, and after abnormality releasing, by moving back the spring force of ball spring, release screw rod restores origin-location, convenient for continuing release, just In the abnormality of this automatic reply card ball, intelligence degree is effectively improved.
Two: the utility model is spirally connected the first mounting base by bolt, and the first mounting base inner cavity is clamped the driven bearing of release, The driven connecting shaft of release of the driven bearing cavity of release is mutually clamped with release screw rod axis, effective to improve what release screw rod rotated Stability, when quickly running convenient for this device, table tennis can normally carry out release, avoid its job insecurity, into And influence user's normal use.
Three: the utility model pedestal lower end is spirally connected dust-collecting box by bolt, and is spirally connected fixed frame by bolt, in fixed frame Stainless (steel) wire is connected under chamber, when falling into dust-collecting box convenient for foreign matter with the rotation of release screw rod, by the setting of stainless (steel) wire, is kept away Exempt from and release is impacted, and user can be easy to disassemble and clears up the dust foreign matter in dust-collecting box, is running this device Moderately good running effect is remained in journey.
Four: the utility model is set as 1:2 by the transmission ratio between release gear and release gear, and release screw rod is facilitated to transport When dynamic, a table tennis can be sent into the inner cavity in release channel by being turned around by its release screw rod, and release screw rod passes through release tooth Wheel drives ball-moving arm gear to turn half-turn, and then ball-moving arm gear drives stirring rod to dial in a ball in shell, is convenient for this device It is more scientific to be more effectively completed entire release movement.
Compared with prior art, the utility model is reasonable in design, is easily installed disassembly, is conducive to safeguard, and Structure is simple, and maintenance cost is the bottom of compared with, and device volume is smaller, occupies little space, transport easy to carry, is conducive to improve release Stability, and dust accretions and foreign matter are convenient to clean, and convenient for the abnormal problem of automatic reply card ball, effective raising is intelligent Degree.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of table tennis intelligent coach machine ball feeding device positive structure diagram;
Fig. 2 be the utility model proposes a kind of table tennis intelligent coach machine ball feeding device face schematic cross-sectional view;
Fig. 3 be the utility model proposes a kind of table tennis intelligent coach machine ball feeding device backsight schematic cross-sectional view;
Fig. 4 be the utility model proposes a kind of table tennis intelligent coach machine ball feeding device overlooking structure diagram;
Fig. 5 be the utility model proposes partial devices schematic cross-sectional view.
In figure: pedestal 1, ball-collecting box 3, goes out bulb 4, release channel 5, elongated slot 6, mounting cup 7, release motor 8, consolidates shell 2 Surely 9, release active connecting shaft 10, release active bearings 11, release screw rod axis 12, release screw rod 13, shock structure 14, damping are covered Seat 15, dust-collecting box 16, fixed frame 17, stainless (steel) wire 18, the first mounting base 19, the driven bearing 20 of release, the driven connecting shaft of release 21, it moves back ball spring 22, release ratchet shaft 23, release gear 24, the second mounting base 25, ball-moving arm bearing 26, ball-moving arm 27, dial ball Bar gear 28 dials ball agitating device 29, stirring rod 291, collection ball cylinder 292, inlet port 293.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.
Referring to Fig.1-5, a kind of table tennis intelligent coach machine ball feeding device, including pedestal 1, the upper end of pedestal 1 are connected with outer Shell 2, the upper end of shell 2 are connected with ball-collecting box 3, are equidistantly connected with shock structure 14, the lower end of shock structure 14 on the left of the lower end of pedestal 1 Common connection cushion socket 15, the upper end of cushion socket 15 are connected with pedestal 1, convenient for reducing the shake generated when release motor 8 works The lower end middle part of power, pedestal 1 is bolted with dust-collecting box 16 by bolt, and the lower end of pedestal 1 is equipped with notch, and the lower end of pedestal 1 is logical It crosses bolt and is bolted with the fixed frame 17 to match with notch position, the inner cavity lower part of fixed frame 17 is connected with stainless (steel) wire 18, just In collection as table tennis falls into dust and foreign matter in shell 2, and it is easily installed disassembly, is cleared up convenient for user.
The upper end of shell 2 is bolted with out bulb 4 by bolt, and the inner cavity of shell 2 is connected with release channel 5, ball-collecting box 3 Inner cavity bottom end is equipped with elongated slot 6, and the outside of elongated slot 6 is equipped with mounting cup 7, is equipped with release motor 8 on the left of the inner cavity of shell 2, outside The inner cavity of shell 2 is bolted with fixed cover 9 by bolt, and the right side of release motor 8 is connected with release active connecting shaft 10, and release is actively Connecting shaft 10 is located at the inner cavity of fixed cover 9, and the inner cavity of fixed cover 9 is equipped with the release to socket-connect with release active connecting shaft 10 actively The inner cavity of bearing 11, fixed cover 9 is equipped with the release screw rod axis 12 to match with 10 position of release active connecting shaft, release screw rod The outside of axis 12 is socketed with release screw rod 13, and the inner cavity of shell 2 is bolted with the first mounting base 19, the first mounting base by bolt 19 inner cavity is connected with the driven bearing 20 of release, and the inner cavity of the driven bearing 20 of release is connected with the driven connecting shaft 21 of release, The left side of the driven connecting shaft 21 of release is connected with release screw rod axis 12, drives release spiral shell convenient for increasing release screw rod axis 12 The stability that bar 13 rotates when preventing that device is quickly run here, leads to release mechanism unstability, and then influence normal use.
The right side of release screw rod axis 12, which is socketed with, moves back ball spring 22, and is connected with release spine on the left of release screw rod axis Wheel shaft 23, and release ratchet shaft 23 is located at the inner cavity of fixed cover 9, left side and 10 phase of release active connecting shaft of release ratchet shaft 23 Connection, convenient for when table tennis is at release channel 5 and 13 corresponding section card ball of release screw rod, release screw rod 13 will receive and release Contrary active force, the release ratchet shaft 23 and release screw rod 13 of 9 inner cavities of fixed cover are detached from this time, while release screw rod 13 Ball spring 22 is moved back in compression, makes release screw rod 13 in the presence of displacement backward, card ball is made to fall into the release position in 13 outside of release screw rod, It is abnormal to release card ball.
The right side of the driven connecting shaft 21 of release is connected with release gear 24, and the inner cavity of shell 2 is bolted with second by bolt Mounting base 25, the inner cavity of the second mounting base 25 are connected with ball-moving arm bearing 26, and the inner cavity of ball-moving arm bearing 26 is connected with ball-moving arm 27, the outer lower portion of ball-moving arm 27 is connected with the ball-moving arm gear 28 being meshed with release gear 24, and the upper end of slot is through collection ball It box 3 and extends to its top and is connected with and dial ball agitating device 29, drive release gear 24 to rotate convenient for the driven connecting shaft 21 of release When, by driving ball-moving arm gear 28 and ball-moving arm 27 to rotate, and then ball-moving arm 27 is by dialling ball agitating device 29 for table tennis Shell inner cavity is stirred into, is easy to use, the race diameter of ball-moving arm gear 28 is larger compared with 24 race diameter of release gear, and its Transmission ratio between ball-moving arm gear 28, release gear 24 and release screw rod axis 12, release gear 24 is 1:2, is convenient for release Screw rod 13, which turns around, to send a table tennis into 5 inner cavity of release channel, and 29 turns of half-turns of group ball agitating device can be by a ball It dials in shell 2, therefore sets 2:1 for the transmission ratio of two gears, to be more effectively completed entire release dynamic thus more scientific Make.
Dialling ball agitating device 29 includes the stirring rod 291 being connected with ball-moving arm 27, and the inner cavity bottom end of ball-collecting box 3 is symmetrical Equipped with matched collection ball cylinder 292, and the outside of mounting cup 7 is equipped with the inlet port to match with 291 position of stirring rod 293, table tennis is carried out in effective stirring income shell 2 convenient for stirring rod 291.
Working principle: when the utility model is used, move this device to table tennis room or other sports places, it will This device is placed in position, by the way that several tablees tennis are put into the collection ball cylinder 292 of 3 inner cavity bottom end of ball-collecting box, is led to It crosses and this table tennis ball feeding device is powered, the switch of release motor 8 is opened by external switch, release motor 8 passes through release master Dynamic connecting shaft 10 drives release screw rod axis 12, release ratchet shaft 23, release screw rod 13 to rotate at the same speed, while release screw rod axis 12 drive release gear 24 to rotate at the same speed by the driven connecting shaft 21 of release, due between release gear 24 and ball-moving arm gear 28 It is the relationship (24 turn of 2 circle of release gear, 28 turn of 1 circle of ball-moving arm gear) of the transmission ratio of 2:1, makes ball-moving arm gear 28 with release electricity The half speed of 8 revolving speed of machine rotates, and drives stirring rod 291 to rotate together by ball-moving arm 27, collects in ball cylinder 292 Table tennis is stirred continuously by stirring rod 291, and the surface of release screw rod 13 is fallen on by the inlet port 293 in 7 outside of mounting cup, It is mobile to release channel 5 one by one that the movement of release screw rod 13 simultaneously drives table tennis, and it changes release side at release channel 5 To, achieve the purpose that vertical release, so that table tennis is vertically flown to upwards from bulb 4 out, and then be transmitted to next device, side Just user carry out table tennis training, and if there is dust or foreign matter to fall into 2 inner cavity of shell with table tennis in the process of running, foreign matter The inner cavity for falling into the dust-collecting box 16 of pedestal can be rotated with release screw rod 13, and by being equipped with the second mounting base 25, the second installation The inside of seat 25 is connected with stainless (steel) wire 18, and then avoids and impacts to release, and user can be easy to disassemble and clears up collection Dust foreign matter in dirt box 16, and when table tennis is in release channel 5 and when 13 corresponding section card ball of release screw rod, release screw rod 13 It will receive the active force contrary with release, the release ratchet shaft 23 and release screw rod 13 of 9 inner cavities of fixed cover are detached from this time, together When release screw rod 13 squeeze and move back ball spring 22, and then it is caused to move back the compression of ball spring 22, release screw rod 13 is made to there is position backward It moves, card ball is made to fall into the release position in 13 outside of release screw rod, it is abnormal to release card ball, and due to moving back ball spring 22 after solution card ball Spring tension, release screw rod 13 restore origin-location, continue release.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (8)

1. a kind of table tennis intelligent coach machine ball feeding device, including pedestal (1), which is characterized in that the upper end of the pedestal (1) connects It is connected to shell (2), the upper end of the shell (2) is connected with ball-collecting box (3), and the upper end of the shell (2) is bolted with by bolt The inner cavity of bulb (4) out, the shell (2) is connected with release channel (5), and the inner cavity bottom end of the ball-collecting box (3) is equipped with elongated slot (6), it is equipped with mounting cup (7) on the outside of the elongated slot (6), release motor (8) is installed on the left of the inner cavity of the shell (2), The inner cavity of the shell (2) is bolted with fixed cover (9) by bolt, and release is connected on the right side of the release motor (8) actively Connecting shaft (10), the release active connecting shaft (10) are located at the inner cavity of fixed cover (9), and the inner cavity of the fixed cover (9) is equipped with The inner cavity of the release active bearings (11) to socket-connect with release active connecting shaft (10), the fixed cover (9) is equipped with and release master The release screw rod axis (12) that connecting shaft (10) position matches is moved, is socketed with release on the outside of the release screw rod axis (12) Screw rod (13).
2. a kind of table tennis intelligent coach machine ball feeding device according to claim 1, which is characterized in that the pedestal (1) Lower end on the left of be equidistantly connected with shock structure (14), the lower end of the shock structure (14) connects cushion socket (15) jointly, described to subtract The upper end of shake seat (15) is connected with pedestal (1).
3. a kind of table tennis intelligent coach machine ball feeding device according to claim 1, which is characterized in that the pedestal (1) Lower end in the middle part of be bolted with dust-collecting box (16) by bolt, the lower end of the pedestal (1) is equipped with notch, under the pedestal (1) End is bolted with the fixed frame to match with notch position (17) by bolt, and the inner cavity lower part of the fixed frame (17) is connected with not It becomes rusty steel mesh (18).
4. a kind of table tennis intelligent coach machine ball feeding device according to claim 1, which is characterized in that the shell (2) Inner cavity be bolted with the first mounting base (19) by bolt, the inner cavity of first mounting base (19) is connected with the driven bearing of release (20), the inner cavity of the driven bearing of the release (20) is connected with the driven connecting shaft of release (21), the driven connection of release The left side of axis (21) is connected with release screw rod axis (12).
5. a kind of table tennis intelligent coach machine ball feeding device according to claim 1, which is characterized in that the release screw rod It is socketed with and moves back ball spring (22) on the right side of axis (12), and be connected with release ratchet shaft on the left of the release screw rod axis (12) (23), and the release ratchet shaft (23) is located at the fixed inner cavity for covering (9), the left side of the release ratchet shaft (23) and release master Dynamic connecting shaft (10) are connected.
6. a kind of table tennis intelligent coach machine ball feeding device according to claim 4, which is characterized in that the release is driven It is connected on the right side of connecting shaft (21) release gear (24), the inner cavity of the shell (2) is bolted with the second mounting base by bolt (25), the inner cavity of second mounting base (25) is connected with ball-moving arm bearing (26), and the inner cavity of the ball-moving arm bearing (26) connects It is connected to ball-moving arm (27), the outer lower portion of the ball-moving arm (27) is connected with the ball-moving arm gear being meshed with release gear (24) (28), the upper end of the slot, which runs through ball-collecting box (3) and extends to its top, is connected with group ball agitating device (29).
7. a kind of table tennis intelligent coach machine ball feeding device according to claim 6, which is characterized in that the ball-moving arm tooth The race diameter for taking turns (28) is larger compared with release gear (24) race diameter, and its ball-moving arm gear (28), release gear (24) transmission ratio between release screw rod axis (12), release gear (24) is 1:2.
8. a kind of table tennis intelligent coach machine ball feeding device according to claim 6, which is characterized in that described group of ball stirring Device (29) includes the stirring rod (291) being connected with ball-moving arm (27), and the inner cavity bottom end of the ball-collecting box (3) is symmetrically arranged with Matched collection ball cylinder (292), and the outside of the mounting cup (7) be equipped with stirring rod (291) position match into Entrance (293).
CN201920032439.0U 2019-01-09 2019-01-09 A kind of table tennis intelligent coach machine ball feeding device Active CN209490442U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920032439.0U CN209490442U (en) 2019-01-09 2019-01-09 A kind of table tennis intelligent coach machine ball feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920032439.0U CN209490442U (en) 2019-01-09 2019-01-09 A kind of table tennis intelligent coach machine ball feeding device

Publications (1)

Publication Number Publication Date
CN209490442U true CN209490442U (en) 2019-10-15

Family

ID=68155228

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920032439.0U Active CN209490442U (en) 2019-01-09 2019-01-09 A kind of table tennis intelligent coach machine ball feeding device

Country Status (1)

Country Link
CN (1) CN209490442U (en)

Similar Documents

Publication Publication Date Title
CN108096798B (en) A kind of multi-functional tennis ball picking up device of physical education training
CN209490442U (en) A kind of table tennis intelligent coach machine ball feeding device
CN208785702U (en) A kind of sport balls cleaning device
CN109864661A (en) A kind of dining table quick cleaner
CN211215203U (en) Health-care exercising device for children
CN111840950A (en) Basketball training interference unit
CN109847305B (en) Table tennis training device
CN209528667U (en) A kind of ball sports articles showing stand
CN110237508A (en) A kind of intellectual access cabinet being placed on athletic ground
CN102836541A (en) Multi-people body-building entertainment machine
CN208511815U (en) A kind of ping-pong ball-picking system
CN206391481U (en) A kind of basketball training ball-collecter
CN208115111U (en) A kind of vollyball projection robot
CN202777684U (en) Multi-user fitness and entertainment machine
CN108543283A (en) A kind of ping-pong ball-picking system
CN109045638A (en) A kind of basketball stands for training fixed point to shoot
CN109157393A (en) A kind of back massage equipment after physical training
CN205386308U (en) Modular many function body educate equipment
CN108812830A (en) A kind of beef dumplings production hammer meat device changing meat elasticity based on reuleaux triangle
CN201042598Y (en) Centripetal and anticentripetal force training device special for hammer
CN212574096U (en) Drying device is used in processing of dried lemon fruit
CN211632533U (en) Adjustable swivel chair
CN111420371A (en) Table tennis intelligent training machine ball feeding device
CN209528456U (en) A kind of ball placement cabinet of physical education
CN209661582U (en) A kind of electric shoe cleaning device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant