CN109692460A - A kind of novel and multifunctional table tenning ball servicing machine - Google Patents
A kind of novel and multifunctional table tenning ball servicing machine Download PDFInfo
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- CN109692460A CN109692460A CN201710981458.3A CN201710981458A CN109692460A CN 109692460 A CN109692460 A CN 109692460A CN 201710981458 A CN201710981458 A CN 201710981458A CN 109692460 A CN109692460 A CN 109692460A
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- 238000003860 storage Methods 0.000 claims abstract description 29
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 28
- 239000003990 capacitor Substances 0.000 claims description 31
- 230000005611 electricity Effects 0.000 claims description 26
- 239000003381 stabilizer Substances 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 19
- 239000013078 crystal Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- -1 PNP triode Substances 0.000 claims description 2
- 238000012549 training Methods 0.000 abstract description 37
- 230000000694 effects Effects 0.000 abstract description 14
- 230000001788 irregular Effects 0.000 abstract description 10
- 239000000047 product Substances 0.000 description 50
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000003825 pressing Methods 0.000 description 6
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/40—Stationarily-arranged devices for projecting balls or other bodies
- A63B69/409—Stationarily-arranged devices for projecting balls or other bodies with pneumatic ball- or body-propelling means
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
- A63B67/04—Table games physically beneficial for the human body, modelled on outdoor sports, e.g. table tennis
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Toys (AREA)
Abstract
A kind of novel and multifunctional table tenning ball servicing machine, by shell, air accumulator, filling gas mouth, taper ball cabinet bucket, electromagnetic gas valve, support leg, lithium storage battery, charging socket, voltage regulator circuit, wireless remote control unit, radio receiving unit and control unit are constituted, the right part of filling gas mouth is welded in the left part aperture of air accumulator, air accumulator, taper ball cabinet bucket, electromagnetic gas valve, support leg, charging socket is installed on the shell, lithium storage battery, voltage regulator circuit, radio receiving unit and control unit be mounted in subassembly wrapper and and electromagnetic gas valve, it is connected between charging socket by conducting wire, subassembly wrapper is installed inside the shell.The present invention can by accompany instruction personnel frequently it is irregular operation wireless remote control unit four keys one of key, control the irregular ball mode out of difference of three ball mouths, reach unexpected, unpredictable purpose in training, so that trainer regular can not be grasped three ball mouths long-time training and goes out ball sequence and interval time, the training effect reached.
Description
Technical field
The invention patent relates to sports goods apparatus field, especially a kind of novel and multifunctional table tenning ball servicing machine.
Background technique
Currently, well known table tenning ball servicing machine one is by air compressor machine compressed gas by table tennis from ball mouth high speed
Blowout, the respond and technology of training user, air compressor machine need 220V ac working power supply, overall volume be big, in work
Vibration and noise can be generated, application is extremely inconvenient, seldom applies at present.It is using micro-machine through phase there are also a kind of mode
Close deceleration mechanism drive spring-compressed after, the potential energy that discharges suddenly of spring table tennis is struck away, this mode does not need to hand over
220V power supply, small volume are flowed, is to serve a ball automatically type using most tablees tennis at present.But either the first compression is empty
The mode that gas serving way or second of motor compressed spring, spring release strike out ball cannot reach in hands-on
Trained randomness and emergentness, that is to say, that no matter compressed air serving way or motor compressed spring, spring release are hit
The mode for getting ball, due to the two from the mode that ball mouth goes out ball be fixed mode, such as it is fixed at interval of 0.5 second from
Ball mouth goes out a ball, and it is essentially all initially to set according to table tenning ball servicing machine producer that no matter ball mouth, which toward which direction goes out ball,
The fixed mode of meter works, when trainer's training time is long, after being familiar with the ball mouth operating mode of table tenning ball servicing machine,
Next table tennis can be substantially predicted in training goes out ball time and output direction of ball, and naturally takes corresponding batting dynamic
Make, ball time and output direction of ball are gone out in that can predict state due to table tennis table tennis in this way, will cause in hands-on and be not achieved
Effect.
Summary of the invention
In order to overcome various drawbacks existing for existing table tenning ball servicing machine, the invention patent is provided to be passed through using air accumulator
External air compressor or manual pump are inflated, the gas that the compressed air in air accumulator is blown out as table tennis from service mouth
Source, the air supply as needed for blowing out a table tennis every time is seldom after the interior inflation of air accumulator, can be abundant after inflation is primary
Meet the training of trainer using time needs, due in equipment without air compressor machine, it is small in size, light-weight, be not required in work
220V AC power source is wanted, vibration and noise will not be generated, but also is had there are three ball mouth, individually ball mouth can uninterruptedly be gone out
Ball, moreover it is possible to which the ball mouth of three different output direction of ball recycles ball, and trainer can independently be trained in training, moreover it is possible to pass through
It accompanies instruction personnel to control by wireless remote control plate, instruction personnel is accompanied to go out ball side by frequently irregular three ball mouths of control
Formula makes trainer regular can not grasp the sequence of ball out and interval time of three ball mouths long-time training, thus
Existing table tenning ball servicing machine is overcome due to working under the fixed mode of producer's initial designs, trainer's training time is long
When, after being familiar with the ball mouth operating mode of table tenning ball servicing machine, can predict in training ball time out of next table tennis with
Output direction of ball, and corresponding shot is taken, go out ball time and output direction of ball in state can be predicted because of table tennis table tennis, causes
A kind of novel and multifunctional table tenning ball servicing machine of effect has been not achieved in hands-on.
The invention patent solves technical solution used by its technical problem: a kind of novel and multifunctional table tennis ball serving
Machine, it is characterised in that by shell, air accumulator, filling gas mouth, taper ball cabinet bucket, electromagnetic gas valve, support leg, lithium storage battery, charging
Socket, voltage regulator circuit, wireless remote control unit, radio receiving unit and control unit are constituted, and the right part of filling gas mouth is welded on gas storage
In the left part aperture of tank, interior of shell lower front end and lower rear end is spaced apart from left to right respectively three groups of mounting openings, often
Group tool is there are two mounting opening, by two apertures under air accumulator on every group of mounting plate of six groups of mounting plates of front and back two and outer
12 mounting openings of lower front end and lower rear end from left to right are respectively aligned to inside shell, with 12 sets of bolt and nuts by air accumulator
Inside the shell on lower part, the filling gas mouth of air accumulator left part is located at the left part aperture of shell for six groups of mounting plates installation of lower front and back two
Outside, the front lower ends of shell have from left to right there are three aperture, and the top front-end and back-end of shell are spaced centainly from left to right
Distance is respectively welded with three tool internal thread silk seats, and taper ball cabinet bucket has identical three, every taper ball cabinet bucket
One fixinig plate with aperture is respectively arranged at rear and front end top, and the lower middle part of every taper ball cabinet bucket is welded with one and goes out ball
The lower bottom part of pipeline, every pick out bulb road is enclosed construction, and there is an aperture in the lower part rear end of every pick out bulb road, each
One is welded on the lower part rear end aperture outside back of pick out bulb road has externally threaded air inlet pipe, and electromagnetic gas valve has identical three
Only, the external screw thread of three pick out bulb road lower part rear end aperture intake pipes screws in the exhaust outlet internal screw thread of three electromagnetic gas valves respectively
Interior, the lower front part of every pick out bulb road has an aperture, and the preceding outside of every pick out bulb road lower front part aperture is welded with
One annular ring is welded with a connecting tube as ball mouth on the exhaust outlet of air accumulator, the lower part of connecting tube from left to right between
Longitudinal measure has three to have externally threaded connection air inlet pipe at a certain distance, respectively screws in one in the air inlet of three electromagnetic gas valves
Only there is externally threaded air inlet pipe, the front of external screw thread and three inlet pipe connections on rear side of three electromagnetic gas valve inlet charge pipes
External screw thread is linked together by pipe joint, six apertures difference of three taper ball cabinet bucket rear and front ends top fixinig plate
With the wire hole alignment of shell upper rear and front end six silk seats from left to right, the interior spiral shell of six silk seats is screwed in respectively with six screw rods
In line, so that three taper ball cabinet buckets are mounted on shell upper, support leg has identical four, the top of four support legs
It is respectively welded at the lower part surrounding of shell, three taper ball cabinet bucket pick out bulb road lower front part annular ball mouths are located at outer
The outside of shell front lower ends three apertures from left to right, there is an aperture at middle part on the left side of shell, and charging socket is coaxial electrical
Shaft power source socket is mounted on upper middle part on the left of shell by the external screw thread and fixture nut of shaft power source socket and opened by supply socket
Kong Shang, after installing, the attaching plug of external power supply charger can be inserted into the jack of shaft power source socket, voltage regulator circuit, nothing
On circuit boards, circuit board and lithium storage battery are installed along in subassembly wrapper, subassembly wrapper for line receiving unit and control unit installation
It is mounted on the right front lower end in inside of shell, the front upper part of subassembly wrapper has an aperture, there is an aperture positioned at the right front lower end of shell,
Lithium storage battery positive and negative polarities pass through conducting wire with two terminals of charging socket respectively and connect, lithium storage battery anode and voltage regulator circuit
Cathode power supply input terminal, control unit control power input by conducting wire connect, the cathode power supply output end of voltage regulator circuit with
Radio receiving unit, control unit cathode power supply input terminal pass through conducting wire and connect, four tunnels of radio receiving unit control power supply
Signal output end is connected with the four-way power supply signal input part of control unit by conducting wire respectively, and six tunnels of control unit control electricity
Source output terminal is connected with the cathode power supply input terminal of three electromagnetic gas valves by conducting wire respectively, negative electrode of lithium accumulator and electromagnetism gas
Valve, voltage regulator circuit, radio receiving unit, control unit negative power supply input terminal by wired earth, wireless remote control unit makes
Used time trainer and instruction personnel is accompanied to carry.
The filling gas mouth is the valve core print seat on air tube, and the right part of filling gas mouth is welded in the left part aperture of air accumulator
When, first the component in the left inside portion of valve core print seat is taken out, prevents from damaging valve core print seat left inside portion when welding including rubber washer
Component.
The electromagnetic gas valve operating voltage is direct current 12V, and inner spool is closed type structure.
The pick out bulb road of three tapers ball cabinet bucket, the preceding outside of every pick out bulb road lower front part aperture are welded with
One annular ring is as ball mouth, and annular ball mouth on the outside of the aperture of housing front lower end first is towards shell front left
Side, the annular ball mouth on the outside of the aperture of housing front lower end second are located at housing front lower end towards the positive front side of shell
Annular ball mouth on the outside of third aperture is towards right side before shell, the pick out bulb road internal diameter of three taper ball cabinet buckets and three
The internal diameter of pick out bulb road lower front part ball mouth is bigger than the outer diameter of table tennis.
After all components install, when several tablees tennis are put into three taper ball cabinet buckets, three taper storages
The table tennis of ball storehouse bucket lower part can sequentially enter in the pick out bulb road of three taper ball cabinet buckets, respectively in three electromagnetic gas valves
Electricity works after its inner spool opens, and compressed air in air accumulator can air inlet, exhaust outlet respectively through three electromagnetic gas valves
It is discharged from three pick out bulb road lower front part ball mouths, compressed air can respectively go out three taper ball cabinet buckets while discharge
The lowermost one table tennis table tennis in lower part is blown out from three pick out bulb road lower front part annular ball mouths in bulb road.
The support leg is made of upper riffled tube, screw rod and support base, and screw rod lower weld is in support base top, screw rod
Top screws in the internal screw thread of riffled tube, when the top of four support legs is respectively welded at the lower part surrounding of shell, four
The top of riffled tube is respectively welded at the lower part surrounding of shell in support leg.
The lithium storage battery specification is 12V/12AH.
The voltage regulator circuit is made of the fixed output voltage stabilizer in three ends, ceramic disc capacitor and power switch, power switch installation
In the inside of subassembly wrapper front upper part aperture, the fixed output voltage stabilizer in three ends, ceramic disc capacitor and power switch pass through circuit board wiring
Connection, the fixed output voltage stabilizer model in three ends is 7805, the cathode power supply of the fixed output voltage stabilizer in power switch one end and three ends
1 foot of input terminal, first ceramic disc capacitor one end connection, 3 foot of cathode power supply output end and second of the fixed output voltage stabilizer in three ends
The connection of ceramic disc capacitor one end, 2 foot of negative power supply input terminal and first ceramic disc capacitor of the fixed output voltage stabilizer in three ends are another
End, second ceramic disc capacitor other end ground connection, the operation handle front end of power switch are sequentially located at subassembly wrapper front upper part aperture, outer
The outside of the right front lower end aperture of shell.
The wireless remote control unit is TWH9236 type wireless remote control transmit circuit component finished product, TWH9236 type wireless remote control
There are four operation buttons for transmit circuit component finished product, after pressing four operation buttons respectively, TWH9236 type wireless remote control transmitting electricity
Road component finished product can launch the non-interfering wireless signal in four tunnels.
The radio receiving unit is by TWH9238 type wireless receiving circuit component finished product, resistance, NPN triode and relay
Device composition, is connected by circuit board wiring, the TWH9238 type wireless receiving circuit component finished product way of output is self-locking defeated therebetween
Out, TWH9238 type wireless receiving circuit component finished product and TWH9236 type wireless remote control transmit circuit component finished product match,
7 foot of cathode power supply input terminal and four relay cathode power supply input terminals of TWH9238 type wireless receiving circuit component finished product and
Control power input connection, four high level output ends, 2,3,4,5 foot point of TWH9238 type wireless receiving circuit component finished product
It is not connected with four resistance one end, four resistance other ends are connected with the base stage of four NPN triodes respectively, four tri- poles NPN
The collector of pipe is connected with four relay negative power supply input terminals respectively, TWH9238 type wireless receiving circuit component finished product
1 foot of negative power supply input terminal and the emitter of four NPN triodes ground connection, the 6 of TWH9238 type wireless receiving circuit component finished product
Foot is hanging.
Described control unit is made of single-chip microcontroller, resistance, electrolytic capacitor, PNP triode, crystal oscillator and relay, is led to therebetween
The wiring connection of oversampling circuit plate, single-chip microcontroller model is AT89C2051/24PI, and 1 foot of reset terminal of single-chip microcontroller is connected with resistance one end,
External 4 foot of crystal oscillator end, 5 feet of single-chip microcontroller are connected with crystal oscillator both ends respectively, 10 foot of negative power supply input terminal and resistance of single-chip microcontroller
The other end, electrolytic capacitor cathode, six relay negative power supply input end groundings, 20 foot of cathode power supply input terminal of single-chip microcontroller and
The connection of electrolytic capacitor anode, six low level output ends, 12,13,14,15,16,17 foot of single-chip microcontroller and six PNP triode bases
Pole is separately connected, and six PNP triode collectors are connected with six relay cathode power supply input terminals respectively, six relays
The connection of power input tip side is controlled, 2,3,6,7,8,9,11,18,19 foot of single-chip microcontroller is hanging.
The invention patent beneficial effect is: several tablees tennis are respectively put into three taper ball cabinets using preceding by the utility model
In bucket, then complete machine is placed on the front table tennis table of trainer, the screw rod by rotating support leg is located at upper interior spiral shell
The high and low position of line pipe can conveniently adjust the high and low position that complete machine is located on table tennis table.When training, wireless remote control unit instruction
Practice personnel or instruction personnel is accompanied to carry；After turning on the power switch, as trainer or to accompany instruction personnel to press TWH9236 type wireless
When one of operation button of first, second and third operation button of remote controlled transmitting circuit component finished product, in radio receiving unit
And under control unit collective effect, three electromagnetic gas valves wherein one can circular gap work once electrified its inner spool interval beat
It opens, the compressed air in air accumulator can constantly be discharged through the wherein air inlet of an electromagnetic gas valve, exhaust outlet, compressed air discharge
While the lowermost one table tennis table tennis in lower part will constantly go out from wherein one in a corresponding taper ball cabinet bucket pick out bulb road
Bulb road lower front part annular ball mouth blowout, to reach the mesh that trainer is independently trained under lower training strength
's；As trainer or instruction personnel is accompanied to press the 4th operation button of TWH9236 type wireless remote control transmit circuit component finished product
When, under radio receiving unit and control unit collective effect, three electromagnetic gas valves can successively continuous circular gap work once electrified
Its inner spool interval is opened, and the compressed air in air accumulator can constantly recycle air inlet, exhaust outlet through three electromagnetic gas valves
Discharge constantly recycles while compressed air is discharged by the lowermost one table tennis in lower part in three taper ball cabinet bucket pick out bulb road
Table tennis is blown out from three pick out bulb road lower front part annular ball mouths, so that it is autonomous to reach the trainer under higher training strength
The purpose being trained.More importantly the utility model can also frequently irregular operation TWH9236 type be wireless by accompanying instruction personnel
One of operation button of first, second, third and fourth key of remote controlled transmitting circuit component finished product, controls three ball mouths
Different irregular ball modes out, reach unexpected, unpredictable purpose in training, make trainer's nothing long-time training
Regulation rule grasps the sequence of ball out and interval time of three ball mouths, thus overcomes existing table tenning ball servicing machine due in factory
It works under the fixed mode of family's initial designs, when trainer's training time is long, to the ball mouth Working mould of table tenning ball servicing machine
After formula is familiar with, next table tennis can be predicted in training goes out ball time and output direction of ball, and takes corresponding shot, because
Table tennis table tennis goes out ball time and output direction of ball in that can predict state, causes the drawbacks of effect has been not achieved in hands-on.Base
In above-mentioned, so the application prospect that the present invention has had.
Detailed description of the invention
The invention patent is described further with reference to the accompanying drawings and examples.
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the present invention wherein an electromagnetic gas valve and the wherein knot between a taper ball cabinet bucket lower part pick out bulb road
Structure schematic diagram.
Fig. 3 is circuit diagram of the invention.
Specific embodiment
Shown in Fig. 1, Fig. 2, a kind of novel and multifunctional table tenning ball servicing machine, by shell 1, air accumulator 2, filling gas mouth 3, taper
Ball cabinet bucket 4-1,4-2,4-3, electromagnetic gas valve 5-1,5-2,5-3, support leg 6, lithium storage battery 7, charging socket 8, voltage regulator circuit 9
Wireless remote control unit 10, radio receiving unit 11 and control unit 12 are constituted；The right part of filling gas mouth 3 is welded on a left side for air accumulator 3
In portion's aperture, 1 inside lower front end of shell and lower rear end is spaced apart from left to right respectively three groups of mounting openings, every group has
Two mounting openings descend two apertures on every group of mounting plate of six groups of mounting plate 2-1 of front and back two and shell by air accumulator 2
12 mounting openings of 1 inside lower front end and lower rear end from left to right are respectively aligned to, with 12 sets of bolt and nuts by air accumulator 2
Six groups of mounting plates of lower front and back two are mounted in shell 1 on lower part, and the filling gas mouth 3 of 2 left part of air accumulator is located at the left part of shell 1
On the outside of aperture, the front lower ends of shell 1 have from left to right there are three aperture 1-1,1-2,1-3, the top front-end and back-end of shell 1
It is spaced apart from left to right to be respectively welded with three tools internal thread silk seat 1-4,1-5,1-6,1-7,1-8,1-9, taper
Ball cabinet bucket 4-1,4-2,4-3 have identical three, and the rear and front end top of every taper ball cabinet bucket 4-1,4-2,4-3 have
One fixinig plate 4-4,4-5,4-6,4-7,4-8,4-9 with aperture, every taper ball cabinet bucket 4-1,4-2,4-3 it is lower in
Portion is respectively welded with pick out bulb road 4-10,4-11, a 4-12, and the lower bottom part of every pick out bulb road is enclosed construction, and every goes out
Respectively there is an aperture in the lower part rear end in bulb road, and one is welded on each aperture outside back has externally threaded air inlet pipe 4-
13, electromagnetic gas valve 5-1,5-2,5-3 have identical three, the outer spiral shell of three pick out bulb road lower part rear end aperture intake pipe 4-13
Line is screwed in respectively in the exhaust outlet internal screw thread of three electromagnetic gas valves 5-1,5-2,5-3, and the lower front part of every pick out bulb road has
One aperture, the preceding outside of every pick out bulb road lower front part aperture be welded with an annular ring as ball mouth 4-14,4-15,
4-16 is welded with a connecting tube 3-1 on the exhaust outlet of air accumulator, and the lower part of connecting tube 3-1 is spaced apart from left to right
Longitudinal measure has three to have externally threaded connection air inlet pipe 3-2, respectively revolves in the air inlet of three electromagnetic gas valves 5-1,5-2,5-3
Entering one has externally threaded air inlet pipe 3-3, external screw thread on rear side of three electromagnetic gas valve 5-1,5-2,5-3 inlet charge pipe 3-3
It is linked together with the front external thread of three inlet pipe connection 3-2 by pipe joint, three taper ball cabinet buckets 4-1,4-
2, six apertures 4-4,4-5,4-6,4-7,4-8,4-9 of the rear and front end 4-3 top fixinig plate respectively with shell upper before and after two
The wire hole alignment for holding six silk seats 1-4,1-5,1-6,1-7,1-8,1-9 from left to right, screws in six silks with six screw rods respectively
In the internal screw thread of seat 1-4,1-5,1-6,1-7,1-8,1-9, to three taper ball cabinet buckets 4-1,4-2,4-3 are mounted on outer
1 top of shell, support leg 6 have identical four, and the top of four support legs 6 is respectively welded at the lower part surrounding of shell 1, three cones
Shape ball cabinet bucket pick out bulb road 4-10,4-11,4-12 lower front part annular ball mouth 4-14,4-15,4-16 are located at shell 1
The outside of front lower ends three apertures 1-1,1-2,1-3 from left to right, there is an aperture 1-10 at middle part on the left side of shell 1, fills
Electrical socket 8 is shaft power source socket, and shaft power source socket 8 is installed by the external screw thread and fixture nut of shaft power source socket 8
It is gone up on the left of shell on middle part aperture 1-10, after installing, the attaching plug of external power supply charger can be inserted into shaft power source and insert
In the jack of seat 8, voltage regulator circuit 9, radio receiving unit 11 and control unit 12 install circuit board and lithium electric power storage on circuit boards
Pond 7 is installed along in subassembly wrapper 13, and subassembly wrapper 13 is mounted on the right front lower end in inside of shell 1, and the front upper part of subassembly wrapper 13 has
One aperture has an aperture, two terminals of 7 positive and negative polarities of lithium storage battery and charging socket 8 positioned at the right front lower end of shell 1
It is connected respectively by conducting wire, 7 anode of lithium storage battery and 9 cathode power supply input terminal of voltage regulator circuit, the control power supply of control unit 12 are defeated
Enter end to connect by conducting wire, cathode power supply output end and radio receiving unit 11, the anode of control unit 12 of voltage regulator circuit 9 are electric
Source input terminal is connected by conducting wire, four tunnels of radio receiving unit 11 control power supply signal output end respectively with control unit 12
Four-way power supply signal input part is connected by conducting wire, six tunnels of control unit 12 control power output end respectively with three electromagnetism gas
The cathode power supply input terminal of valve 5-1,5-2,5-3 are connected by conducting wire, 7 cathode of lithium storage battery and electromagnetic gas valve 5-1,5-2,5-3,
Voltage regulator circuit 9, radio receiving unit 11, control unit 12 negative power supply input terminal by wired earth, wireless remote control unit
10 trainer and accompany instruction personnel to carry when using.Electromagnetic gas valve 5-1,5-2,5-3 operating voltage is direct current 12V, in
Portion's spool is closed type structure.The pick out bulb road of three taper ball cabinet buckets 4-1,4-2,4-3, every pick out bulb road lower front part
The preceding outside of aperture is welded with ring of the annular ring as ball mouth, on the outside of the aperture 1-1 of housing front lower end first
Shape ball mouth 4-14 is towards left side before shell 1, the annular ball mouth 4-15 of 1-2 on the outside of the aperture of housing front lower end second
Towards the positive front side of shell 1, annular ball mouth 4-16 on the outside of housing front lower end third aperture 1-3 is towards before shell 1
Right side, pick out bulb road 4-10,4-11,4-12 internal diameter and three pick out bulb road lower front part ball mouths of three taper ball cabinet buckets
The internal diameter of 4-14,4-15,4-16 are bigger than the outer diameter of table tennis.After all components install, several tablees tennis are put into three cones
When in shape ball cabinet bucket 4-1,4-2,4-3, the table tennis of three lower parts taper ball cabinet bucket 4-1,4-2,4-3 can sequentially enter three
In pick out bulb road 4-10,4-11,4-12 of taper ball cabinet bucket, three electromagnetic gas valves 5-1,5-2,5-3 respectively electrician
Make after its inner spool opens, compressed air in air accumulator 2 can air inlet respectively through three electromagnetic gas valves 5-1,5-2,5-3
Mouth, exhaust outlet are discharged from three pick out bulb road lower front part ball mouth 4-14,4-15,4-16, meeting while compressed air is discharged
Respectively by the lowermost one table tennis table tennis in lower part in three taper ball cabinet bucket pick out bulb road from three pick out bulb road lower front parts
Annular ball mouth blowout.Support leg 6 is made of upper riffled tube 6-1, screw rod 6-2 and support base 6-3, screw rod 6-2 lower weld
On the top support base 6-3, the top screw rod 6-2 is screwed in the internal screw thread of riffled tube 6-1, and the top of four support legs 6 is welded respectively
It connects in the lower part surrounding of shell 1, the top of riffled tube 6-1 in four support legs 1 is respectively welded at the lower part four of shell 1
Week.9-1 is the power switch of voltage regulator circuit.
Fig. 1, shown in 2, the present invention using it is preceding several tablees tennis 14 be respectively put into three taper ball cabinet bucket 4-1,
In 4-2,4--3, then complete machine is placed on the front table tennis table of trainer, by screw rod 6-2 that rotate support leg
High and low position in upper riffled tube 6-1 can conveniently adjust the high and low position that complete machine is located on table tennis table；Screw rod 6-
2 down rotate when, complete machine height get higher, when screw rod 6-2 is up rotated, complete machine highly get higher；Usually in use, lithium storage battery
When 7 electricity are reduced, charging socket 8 is inserted into as the charging of lithium storage battery 7 by the attaching plug of external power supply charger.Air accumulator 3
When interior air pressure reduces, compressed air is added in air accumulator 3 through filling gas mouth 3 by external air compressor or manual pump.
When training, 10 trainer of wireless remote control unit or instruction personnel is accompanied to carry；After turning on the power switch 9-1, lithium storage battery 7 is defeated
Power supply out can enter the power input of voltage regulator circuit 9 and control unit 12 controls power input；Then, in pressure stabilizing electricity
Under the effect of 9 internal circuit of road, the cathode power supply output end of voltage regulator circuit 9 output 5V DC power supply enter radio receiving unit 11,
The cathode power supply input terminal of control unit 12, radio receiving unit 11, control unit 12 are in obtain electric standby mode.Work as training of human
Member or when instruction personnel being accompanied to press one of operation button of first, second and third operation button of wireless remote control unit 10, wirelessly
Transmitting unit 10 can launch wireless signal, under radio receiving unit 11 and control unit collective effect, three electromagnetic gas valves
Wherein electromagnetic gas valve meeting its inner spool of intermittent cyclic work once electrified interval of 5-1,5-2,5-3 are opened, in air accumulator 2
Compressed air can constantly interval be discharged through the wherein air inlet of an electromagnetic gas valve, exhaust outlet, while compressed air is discharged not
Break the lowermost one table tennis table tennis in lower part in a corresponding taper ball cabinet bucket pick out bulb road under a wherein pick out bulb road
Portion front end annular ball mouth blowout, to achieve the purpose that trainer is independently trained under lower training strength.Work as instruction
It is single in radio receiving unit 11 and control when practicing personnel or instruction personnel being accompanied to press the 4th operation button of wireless remote control unit 10
Under first 12 collective effects, three electromagnetic gas valves 5-1,5-2,5-3 can be successively between continuous its inner spools of circular gap work once electrified
It has a rest opening, the compressed air in air accumulator 2 can constantly recycle air inlet, exhaust outlet through three electromagnetic gas valves 5-1,5-2,5-3
Discharge constantly recycles while compressed air is discharged by lower part in three taper ball cabinet bucket pick out bulb road 4-10,4-11,4-12
One table tennis table tennis of the lowermost is blown out from three pick out bulb road lower front parts annular ball mouth 4-14,4-15,4-16, to reach
The purpose that trainer is independently trained under higher training strength.More importantly the utility model can also be by accompanying instruction people
One of operation button of first, second, third and fourth key of the frequent irregular operation wireless remote control unit 10 of member, control three
The irregular ball mode out of the difference of a annular ball mouth 4-14,4-15,4-16, reaches unexpected, unpredictable purpose in training,
So that trainer regular can not be grasped the ball sequence out of three annular ball mouth 4-14,4-15,4-16 training for a long time
And interval time, existing table tenning ball servicing machine is thus overcome due to working under the fixed mode of producer's initial designs, is instructed
When white silk personnel training is of long duration, after being familiar with the ball mouth operating mode of table tenning ball servicing machine, next table tennis can be predicted in training
Pang ball goes out ball time and output direction of ball, and takes corresponding shot, because of going out at ball time and output direction of ball for table tennis table tennis
In state can be predicted, the drawbacks of effect has been not achieved in hands-on is caused.In actual use, due to three conical material hopper 4-
1,4-2,4-3 are tapers, and the table tennis 14 of lower part can be bored automatically into three respectively in three conical material hoppers 4-1,4-2,4-3
Inside pick out bulb road 4-10,4-11,4-12 of shape bunker 4-1,4-2,4-3, in taper ball cabinet bucket pick out bulb road 4-10,4-
11, in 4-12 one table tennis table tennis 14 of lower part the lowermost respectively from three pick out bulb road lower front part annular ball mouths 4-14,4-
15, after 4-16 blowout, 14 top of table tennis table tennis of lower part bottom one in taper ball cabinet bucket pick out bulb road 4-10,4-11,4-12
A table tennis 14 can automatically fall into lower part bottom in taper ball cabinet bucket pick out bulb road 4-10,4-11,4-12, be second
Second compression air blowout table tennis 14 is ready.It, can be at three pick out bulb road 4-10,4-11,4-12 in actual production
The inner end of portion front end annular ball mouth 4-14,4-15,4-16 process a rifling, so that table tennis is reached rotation from ball mouth and blow
Purpose out.
Shown in Fig. 3, electromagnetic gas valve DC1, DC2, DC3 operating voltage is direct current 12V, and inner spool is normally closed type knot
Structure.
Lithium storage battery G specification is 12V/12AH.Voltage regulator circuit is by three ends fixed output voltage stabilizer A1, ceramic disc capacitor C1, C2
It is formed with power switch S；Power switch S is mounted on the inside of subassembly wrapper front upper part aperture, the fixed output voltage stabilizer A1 in three ends, porcelain
Chip capacitor C1, C2 are connected with power switch S by circuit board wiring, and the fixed output voltage stabilizer model in three ends is 7805, and power supply is opened
It closes the one end S to connect with 1 foot of cathode power supply input terminal of the fixed output voltage stabilizer A1 in three ends, first one end ceramic disc capacitor C1, three
3 foot of cathode power supply output end and second one end ceramic disc capacitor C2 for holding fixed output voltage stabilizer A1 connect, the fixed output in three ends
2 foot of negative power supply input terminal of voltage-stablizer A1 and first ceramic disc capacitor C1 other end, second another termination of ceramic disc capacitor C2
Ground, the operation handle front end of power switch S are sequentially located at the outside of the aperture of subassembly wrapper front upper part, the right front lower end aperture of shell.Nothing
Line remote control unit is TWH9236 type wireless remote control transmit circuit component finished product, TWH9236 type wireless remote control transmit circuit component at
There are four operation button S1, S2, S3, S4 by product A3, and after pressing four operation buttons S1, S2, S3, S4 respectively, TWH9236 type is wireless
Remote controlled transmitting circuit component A3 finished product can launch the non-interfering wireless signal in four tunnels.Radio receiving unit is by TWH9238
Type wireless receiving circuit component finished product A2, resistance R1, R2, R3, R4, NPN triode VT1, VT2, VT3, VT4 and relay K1,
K2, K3, K4 composition, are connected by circuit board wiring therebetween, and the TWH9238 type wireless receiving circuit component finished product A2 way of output is
Self-locking output, TWH9238 type wireless receiving circuit component finished product A2 and TWH9236 type wireless remote control transmit circuit component finished product A3
It matches, 7 foot of cathode power supply input terminal and four relay K1, K2 of TWH9238 type wireless receiving circuit component finished product A2,
K3, K4 cathode power supply input terminal and control power input connection, four of TWH9238 type wireless receiving circuit component finished product A2
2,3,4,5 foot of high level output end is connected with four one end resistance R1, R2, R3, R4 respectively, and four resistance R1, R2, R3, R4 are another
One end is connected with the base stage of four NPN triodes VT1, VT2, VT3, VT4 respectively, four NPN triodes VT1, VT2, VT3, VT4
Collector connected respectively with four relay K1, K2, K3, K4 negative power supply input terminals, TWH9238 type wireless receiving circuit group
The emitter of 1 foot of negative power supply input terminal of part finished product A2 and four NPN triodes VT1, VT2, VT3, VT4 ground connection, TWH9238
6 feet of type wireless receiving circuit component finished product A2 are hanging.Control unit is by Chip Microcomputer A 4, resistance R5, electrolytic capacitor C3, PNP tri-
Pole pipe VT5, VT6, VT7, VT8, VT9, VT10, crystal oscillator BX and relay K5, K6, K7, K8, K9, K10 composition, pass through electricity therebetween
The wiring connection of road plate, 4 model of Chip Microcomputer A is AT89C2051/24PI；1 foot of reset terminal of Chip Microcomputer A 4 and the one end resistance R5 connect
It connects；External 4 foot of crystal oscillator end, 5 feet of Chip Microcomputer A 4 are connected with the both ends crystal oscillator BX respectively；The negative power supply input terminal 10 of Chip Microcomputer A 4
Foot and the resistance R5 other end, electrolytic capacitor C3 cathode, six relay K5, K6, K7, K8, K9, K10 negative power supply input terminations
Ground；20 foot of cathode power supply input terminal of Chip Microcomputer A 4 is connected with electrolytic capacitor C3 anode, six low level outputs of Chip Microcomputer A 4
12,13,14,15,16,17 feet of end and six PNP triode VT5, VT6, VT7, VT8, VT9, VT10 base stages are separately connected, and six
PNP triode VT5, VT6, VT7, VT8, VT9, VT10 collector are positive with six relays K5, K6, K7, K8, K9, K10 respectively
Power input connection, the control power input tip side connection of six relays K5, K6, K7, K8, K9, K10, Chip Microcomputer A 4
2,3,6,7,8,9,11,18,19 feet it is hanging.
Shown in Fig. 3, lithium storage battery G positive and negative polarities pass through conducting wire with two terminals of charging socket CZ respectively and connect,
Lithium storage battery G anode and the voltage regulator circuit cathode power supply input terminal power switch S other end, control unit control power input after
The control power input tip side of electric appliance K5, K6, K7, K8, K9, K10 are connected by conducting wire, the cathode power supply output of voltage regulator circuit
Hold 3 feet and radio receiving unit cathode power supply input terminal TWH9238 type wireless receiving circuit of the fixed output voltage stabilizer A1 in three ends
7 feet of component finished product A2,20 feet of the cathode power supply input terminal Chip Microcomputer A 4 of control unit are connected by conducting wire, wireless receiving list
The first via of member, the second tunnel, third road control the normally opened contact end of power supply signal output end relay K1, K2, K3 respectively and control
The first via of unit processed, the second tunnel, third road power supply signal input PNP triode VT5, VT6, VT7 emitter by leading
Line connection, the normally opened contact end of the 4th tunnel control power supply signal output end relay K4 of radio receiving unit and control unit
The emitter of four-way power supply signal input part PNP triode VT8, VT9, VT10 are connected by conducting wire, and the first of control unit
The cathode power supply input terminal of road, four tunnels control power output end relay K5 and K8 normally opened contact end and electromagnetic gas valve DC1 pass through
Conducting wire connection, the second tunnel, five tunnels control power output end relay K6 and the K9 normally opened contact end of control unit and electromagnetic gas valve
The cathode power supply input terminal of DC2 is connected by conducting wire, the third road of control unit, six tunnels control power output end relay K7 and
K10 normally opened contact end is connected with the cathode power supply input terminal of electromagnetic gas valve DC3 by conducting wire, lithium storage battery G cathode and electromagnetism gas
The 2 of the negative power supply input terminal of valve DC1, DC2, DC3, the fixed output voltage stabilizer A1 in three end of voltage regulator circuit negative power supply input terminal
Foot, 1 foot of radio receiving unit negative power supply input terminal TWH9238 type wireless receiving circuit component finished product A2, control unit
10 feet of negative power supply input terminal Chip Microcomputer A 4 by wired earth, wireless remote control unit A3 using when trainer and accompany instruction people
Member carries.
Shown in Fig. 3, usually in use, passing through the attaching plug of external power supply charger when lithium storage battery G electricity is reduced
Charging socket CZ is inserted into as lithium storage battery G charging.When training, wireless remote control unit A3 trainer or instruction personnel is accompanied to take with oneself
Band.In use, the power supply of lithium storage battery G output can enter power input and the control of voltage regulator circuit after turning on the power switch S
Unit processed controls power input.In voltage regulator circuit: after voltage regulator circuit work once electrified, inside the fixed output voltage stabilizer A1 in three ends
Under circuit and its peripheral cell ceramic disc capacitor C1, C2 collective effect, 3 feet of the fixed output voltage stabilizer A1 in three ends export 5V direct current
Source enters the cathode power supply input terminal of radio receiving unit, control unit, and radio receiving unit, control unit are in electric standby
State.In radio receiving unit, control unit: as trainer or instruction personnel being accompanied to press first of wireless remote control unit A3 behaviour
When making key S1, wireless remote control unit A3 can launch first via wireless signal, TWH9238 type wireless receiving circuit component finished product
After A2 receives first via wireless signal, 2 feet of TWH9238 type wireless receiving circuit component finished product A2 can export high level letter
Number, high level enters NPN triode VT1 base stage through resistance R1 current limliting, NPN triode VT1 by high level signal power amplification, fall
Mutually enter relay K1 negative power supply input terminal, then relay K1 obtains its control power input tip side of electric actuation and normally opened touching
Point end closure, since the PNP triode VT5 emitter of SCM peripheral element and relay K1 normally opened contact end pass through conducting wire company
It connects, so PNP triode VT5 emitter can obtain electric this moment, trainer or instruction personnel is accompanied to press wireless remote control unit A3 again
First operation button S1 when, wireless remote control unit A3 can launch first via wireless signal again, and TWH9238 type wirelessly connects
After receipts circuit unit finished product A2 receives first via wireless signal again, the 2 of TWH9238 type wireless receiving circuit component finished product A2
Foot stops output high level signal, and PNP triode VT5 emitter is no longer on to obtain electricity condition；As trainer or accompany instruction personnel
When pressing second operation button S2 of wireless remote control unit A3, wireless remote control unit A3 can launch the second road wireless signal,
After TWH9238 type wireless receiving circuit component finished product A2 receives the second road wireless signal, TWH9238 type wireless receiving circuit group
3 feet of part finished product A2 can export high level signal, and high level enters NPN triode VT2 base stage, tri- pole NPN through resistance R2 current limliting
High level signal power amplification, paraphase are entered relay K2 negative power supply input terminal by pipe VT2, and then relay K2 obtains electric actuation
Its control power input tip side and normally opened contact end closure, due to SCM peripheral element PNP triode VT6 emitter and
Relay K2 normally opened contact end is connected by conducting wire, so PNP triode VT6 emitter can obtain electric this moment, trainer or is accompanied
When instruction personnel press second operation button S2 of wireless remote control unit A3 again, wireless remote control unit A3 can launch again
Two road wireless signals, after TWH9238 type wireless receiving circuit component finished product A2 receives the second road wireless signal again,
3 feet of TWH9238 type wireless receiving circuit component finished product A2 stop output high level signal, and PNP triode VT6 emitter is no longer
In electricity condition；As trainer or when instruction personnel being accompanied to press the third operation button S3 of wireless remote control unit A3, wirelessly
Remote control unit A3 can launch third road wireless signal, and TWH9238 type wireless receiving circuit component finished product A2 receives third road
After wireless signal, 4 feet of TWH9238 type wireless receiving circuit component finished product A2 can export high level signal, and high level is through resistance
R3 current limliting enters NPN triode VT3 base stage, and high level signal power amplification, paraphase are entered relay K3 by NPN triode VT3
Negative power supply input terminal, then relay K3 obtains its control power input tip side of electric actuation and normally opened contact end closure, due to
The PNP triode VT7 emitter of SCM peripheral element is connected with relay K3 normally opened contact end by conducting wire, so this moment
The emitter of PNP triode VT7 can obtain electric, and trainer or start-up press the third behaviour of wireless remote control unit A3 again
When making key S3, wireless remote control unit A3 can launch third road wireless signal, TWH9238 type wireless receiving circuit component again
After finished product A2 receives third road wireless signal again, 4 feet of TWH9238 type wireless receiving circuit component finished product A2 stop output
High level signal, PNP triode VT7 emitter are no longer on to obtain electricity condition；As trainer or instruction personnel is accompanied to press wireless remote
When controlling the 4th operation button S4 of unit A3, wireless remote control unit A3 can launch the 4th road wireless signal, TWH9238 type without
After line reception circuit unit finished product A2 receives the 4th road wireless signal, the 5 of TWH9238 type wireless receiving circuit component finished product A2
Foot can export high level signal, and high level enters NPN triode VT4 base stage through resistance R4 current limliting, and NPN triode VT4 will be high electric
Ordinary mail power amplification, paraphase enter relay K4 negative power supply input terminal, and then relay K4 obtains its control power supply of electric actuation
Input tip side and normally opened contact end closure, due to SCM peripheral element PNP triode VT8, VT9, VT10 emitter and
Relay K4 normally opened contact end is connected by conducting wire, so PNP triode VT8, VT9, VT10 emitter can obtain electric, training this moment
Personnel or when instruction personnel being accompanied to press the 4th operation button S4 of wireless remote control unit A3 again, wireless remote control unit A3 can be again
Launch the 4th road wireless signal, TWH9238 type wireless receiving circuit component finished product A2 receives the 4th road wireless signal again
Afterwards, the 5 feet stopping output high level signal of TWH9238 type wireless receiving circuit component finished product A2, PNP triode VT8, VT9,
VT10 emitter is no longer on to obtain electricity condition.
Fig. 3, in control unit: after control unit work once electrified, Chip Microcomputer A 4 is electrolysed in internal circuit and its peripheral cell
Under capacitor C1, resistance R5, crystal oscillator BX collective effect, 12,13,14 feet of Chip Microcomputer A 4 can export simultaneously 0.5 second low level into
Enter the base stage of PNP triode VT5, VT6, VT7, after 0.5 second, 12,13,14 feet of Chip Microcomputer A 4 can export simultaneously again at interval
Low level enters the base stage of PNP triode VT5, VT6, VT7 within 0.5 second, and with this, constantly circulation is just stopped until power switch S is closed
Only；If trainer or instruction personnel is accompanied to press first operation button S1 of wireless remote control unit A3, wireless remote control list this moment
First A3 launches first via wireless signal, and PNP triode VT5 emitter is in obtain electricity condition, then, due to Chip Microcomputer A 4
12 feet output the base stage that low level enters PNP triode VT5, PNP triode VT5 can be connected its collector export high level into
Enter relay K5 cathode power supply input terminal, relay K5 obtains electric actuation, and it controls power input tip side and normally opened contact end closure
0.5 second, because electromagnetic gas valve DC1 cathode power supply input terminal is connected with relay K5 normally opened contact end by conducting wire, so after
Electric appliance K5 was obtained in electric 0.5 second kind time for being attracted its control power input tip side and normally opened contact end closure, electromagnetic gas valve DC1
Can its inner spool of work once electrified open 0.5 second, compressed air in air accumulator can air inlet through electromagnetic gas valve DC1, row
Port discharge, by lower part the lowermost one in shell front left lower taper ball cabinet bucket pick out bulb road while compressed air is discharged
Table tennis table tennis is blown out from pick out bulb road lower front part annular ball mouth；12 feet of Chip Microcomputer A 2 export 0.5 second low level, interval
After 0.5 second, 12 feet of Chip Microcomputer A 4 can export 0.5 second low level again and enter PNP triode VT5 base stage, then, relay
Device K5 again it is electric be attracted 0.5 second, electromagnetic gas valve DC1 again its inner spool of work once electrified open 0.5 second, in air accumulator
Compressed air can air inlet again through electromagnetic gas valve DC1, exhaust outlet discharge, again by shell while compressed air is discharged
The lowermost one table tennis table tennis in lower part goes out from pick out bulb road lower front part annular in front left lower taper ball cabinet bucket pick out bulb road
The blowout of ball mouth；It is constantly recycled with this, at interval of 0.5 second, the compressed air in air accumulator will be through the air inlet of electromagnetic gas valve DC1
Mouth, exhaust outlet discharge, constantly by lower part in shell front left lower taper ball cabinet bucket pick out bulb road while compressed air is discharged
One table tennis table tennis of the lowermost is blown out from pick out bulb road lower front part annular ball mouth, thus in table tennis constantly towards shell
Preceding Left Angle goes out under the mode of ball, achievees the purpose that trainer is independently trained under lower training strength.Work as training of human
Member or when instruction personnel being accompanied to press first operation button S1 of wireless remote control unit A3 again, wireless remote control unit A3 can be sent out again
First via wireless signal is projected, after TWH9238 type wireless receiving circuit component finished product A2 receives first via wireless signal again,
2 feet of TWH9238 type wireless receiving circuit component finished product A2 stop output high level signal, PNP triode VT5 emitter, electricity
Magnetism valve DC1 is no longer on to obtain electricity condition, thus, compressed air cannot be again through electromagnetic gas valve DC1 by shell front left lower taper
The lowermost one table tennis table tennis in lower part is blown out from pick out bulb road lower front part annular ball mouth in ball cabinet bucket pick out bulb road.
Fig. 3, in control unit: after control unit work once electrified, when 12,13,14 feet of Chip Microcomputer A 4 export 0.5 second simultaneously
Clock low level enters the base stage of PNP triode VT5, VT6, VT7, and interval is after 0.5 second, and 12,13,14 feet of Chip Microcomputer A 4 are again
0.5 second low level is exported simultaneously and enters the base stage of PNP triode VT5, VT6, VT7, and is constantly recycled in this manner；If this
It carves trainer or instruction personnel is accompanied to press second operation button S2 of wireless remote control unit A3, wireless remote control unit A3 launches
Second road wireless signal, PNP triode VT6 emitter are in obtain electricity condition, then, since 13 feet of Chip Microcomputer A 4 output
Low level enters the base stage of PNP triode VT6, and PNP triode VT6 can be connected its collector output high level and enter relay K6
Cathode power supply input terminal, relay K6 obtains electric actuation, and it controls power input tip side and normally opened contact end closure 0.5 second, because
For, electromagnetic gas valve DC2 cathode power supply input terminal is connected with relay K6 normally opened contact end by conducting wire, so relay K6 obtain it is electric
It is attracted in its 0.5 second kind time for controlling power input tip side and normally opened contact end closure, electromagnetic gas valve DC2 can work once electrified
Its inner spool is opened 0.5 second, compressed air in air accumulator can air inlet through electromagnetic gas valve DC2, exhaust outlet discharge, pressure
Contracting air be discharged while by the lowermost one table tennis table tennis in lower part in the front lower middle part taper ball cabinet bucket pick out bulb road of shell from
The blowout of pick out bulb road lower front part annular ball mouth；13 feet of Chip Microcomputer A 4 exported 0.5 second low level, interval after 0.5 second,
13 feet of Chip Microcomputer A 4 can export 0.5 second low level again and enter PNP triode VT6 base stage, and then, relay K6 is obtained again
Electricity is attracted 0.5 second, and electromagnetic gas valve DC2 again open 0.5 second by its inner spool of work once electrified, the compressed air in air accumulator
Air inlet, exhaust outlet of the meeting again through electromagnetic gas valve DC2 are discharged, and again bore the front lower middle part of shell while compressed air is discharged
The lowermost one table tennis table tennis in lower part is blown out from pick out bulb road lower front part annular ball mouth in shape ball cabinet bucket pick out bulb road；With
This is constantly recycled, and at interval of 0.5 second, compressed air in air accumulator will air inlet through electromagnetic gas valve DC2, exhaust outlet row
Out, constantly by lower part the lowermost one in the front lower middle part taper ball cabinet bucket pick out bulb road of shell while compressed air is discharged
Table tennis table tennis is blown out from pick out bulb road lower front part annular ball mouth, thus in table tennis constantly towards the mould for going out ball in front of shell
Under formula, achieve the purpose that trainer is independently trained under lower training strength.As trainer or accompany instruction personnel again
When pressing second operation button S2 of wireless remote control unit A3, wireless remote control unit A3 can launch the second tunnel wireless communication again
Number, after TWH9238 type wireless receiving circuit component finished product A2 receives the second road wireless signal again, TWH9238 type is wirelessly connect
3 feet for receiving circuit unit finished product A2 stop output high level signal, and PNP triode VT6 emitter, electromagnetic gas valve DC2 no longer locate
In electricity condition, thus, compressed air cannot be again through electromagnetic gas valve DC2 by the front lower middle part taper ball cabinet bucket pick out bulb road of shell
One table tennis table tennis of interior lower part the lowermost is blown out from pick out bulb road lower front part annular ball mouth.
Fig. 3, in control unit: after control unit work once electrified, when 12,13,14 feet of Chip Microcomputer A 4 export 0.5 second simultaneously
Clock low level enters the base stage of PNP triode VT5, VT6, VT7, and interval is after 0.5 second, and 12,13,14 feet of Chip Microcomputer A 4 are again
0.5 second low level is exported simultaneously and enters the base stage of PNP triode VT5, VT6, VT7, and is constantly recycled in this manner；If this
It carves trainer or instruction personnel is accompanied to press the third operation button S3 of wireless remote control unit A3, wireless remote control unit A3 launches
Third road wireless signal, PNP triode VT7 emitter are in obtain electricity condition, then, since 14 feet of Chip Microcomputer A 4 output
Low level enters the base stage of PNP triode VT7, and PNP triode VT7 can be connected its collector output high level and enter relay K7
Cathode power supply input terminal, relay K7 obtains electric actuation, and it controls power input tip side and normally opened contact end closure 0.5 second, because
For, electromagnetic gas valve DC3 cathode power supply input terminal is connected with relay K7 normally opened contact end by conducting wire, so relay K7 obtain it is electric
It is attracted in its 0.5 second kind time for controlling power input tip side and normally opened contact end closure, electromagnetic gas valve DC3 can work once electrified
Its inner spool is opened 0.5 second, compressed air in air accumulator can air inlet through electromagnetic gas valve DC3, exhaust outlet discharge, pressure
Contracting air be discharged while by before shell in lower right section taper ball cabinet bucket pick out bulb road one table tennis table tennis of lower part the lowermost from
The blowout of pick out bulb road lower front part annular ball mouth；14 feet of Chip Microcomputer A 4 exported 0.5 second low level, interval after 0.5 second,
14 feet of Chip Microcomputer A 4 can export 0.5 second low level again and enter PNP triode VT7 base stage, and then, relay K7 is obtained again
Electricity is attracted 0.5 second, and electromagnetic gas valve DC3 again open 0.5 second by its inner spool of work once electrified, the compressed air in air accumulator
Air inlet, exhaust outlet of the meeting again through electromagnetic gas valve DC3 are discharged, and compressed air again bores lower right section before shell while discharge
The lowermost one table tennis table tennis in lower part is blown out from pick out bulb road lower front part annular ball mouth in shape ball cabinet bucket pick out bulb road；With
This is constantly recycled, and at interval of 0.5 second, compressed air in air accumulator will air inlet through electromagnetic gas valve DC3, exhaust outlet row
It out, constantly will be before shell lower part the lowermost one in lower right section taper ball cabinet bucket pick out bulb road while compressed air is discharged
Table tennis table tennis is constantly blown out from pick out bulb road lower front part annular ball mouth, thus in table tennis constantly towards right angular before shell
Out under the mode of ball, achieve the purpose that trainer is independently trained under lower training strength.When trainer or training
When personnel press the third operation button S3 of wireless remote control unit A3 again, wireless remote control unit A3 can launch third again
Road wireless signal, after TWH9238 type wireless receiving circuit component finished product A2 receives third road wireless signal again, TWH9238
4 feet of type wireless receiving circuit component finished product A2 stop output high level signal, PNP triode VT7 emitter, electromagnetic gas valve
DC3 is no longer on to obtain electricity condition, thus, compressed air cannot be again through electromagnetic gas valve DC3 by lower right section taper ball cabinet before shell
The lowermost one table tennis table tennis in lower part is blown out from pick out bulb road lower front part annular ball mouth in the pick out bulb road that struggles against.
Fig. 3, in control unit: after control unit work once electrified, Chip Microcomputer A 4 is electrolysed in internal circuit and its peripheral cell
Under capacitor C1, resistance R5, crystal oscillator BX collective effect, 12,13,14 feet of Chip Microcomputer A 4 export 0.5 second low level together and enter
While PNP triode VT5, VT6, VT7 base stage, 15 feet of Chip Microcomputer A 4 first export 0.5 second low level and enter PNP triode
The base stage of VT8, after 0.5 second, 16 feet of Chip Microcomputer A 4 export 0.5 second low level and enter the base of PNP triode VT9 at interval
Pole, interval is after 0.5 second, and 17 feet of Chip Microcomputer A 4 export 0.5 second low level and enter the base stage of PNP triode VT10, with this
Constantly circulation just stops until power switch S is closed；If trainer or instruction personnel is accompanied to press wireless remote control unit A3 this moment
The 4th operation button S4, wireless remote control unit A4 launches the 4th road wireless signal, PNP triode VT8, VT9, VT10
Emitter is in obtain electricity condition, then, since 15 feet of Chip Microcomputer A 4 first export the base stage that low level enters PNP triode VT8,
PNP triode VT8 can be connected its collector output high level and enter relay K8 cathode power supply input terminal, and relay K8 obtains electric suction
It closes it and controls power input tip side and normally opened contact end closure 0.5 second, because, electromagnetic gas valve DC1 cathode power supply input terminal
Connected with relay K8 normally opened contact end by conducting wire, thus relay K8 obtain it is electric be attracted its control power input tip side and often
In the 0.5 second kind time for opening tip side closure, electromagnetic gas valve DC1 can be its inner spool of work once electrified opening 0.5 second, air accumulator
Interior compressed air can air inlet through electromagnetic gas valve DC1, exhaust outlet discharge, compressed air will be under shell front left while discharge
The lowermost one table tennis table tennis in lower part is blown from pick out bulb road lower front part annular ball mouth in portion's taper ball cabinet bucket pick out bulb road
Out；It after 15 feet of Chip Microcomputer A 4 export 0.5 second low level, is spaced 0.5 second, the output of 16 feet 0.5 second of Chip Microcomputer A 4 is low
Level enters the base stage of PNP triode VT9, then, since the 16 feet output low level of Chip Microcomputer A 4 enters PNP triode
The base stage of VT9, PNP triode VT9 can be connected its collector output high level and enter relay K9 cathode power supply input terminal, relay
Device K9 obtains electric actuation, and it controls power input tip side and normally opened contact end closure 0.5 second, because, electromagnetic gas valve DC2 anode
Power input is connected with relay K9 normally opened contact end by conducting wire, so relay K9 obtains electric actuation, its controls power input
In the 0.5 second kind time of tip side and normally opened contact end closure, electromagnetic gas valve DC2 can its inner spool of work once electrified opening 0.5
Second, compressed air in air accumulator can air inlet through electromagnetic gas valve DC2, exhaust outlet discharge, while compressed air is discharged
By the lowermost one table tennis table tennis in lower part in the front lower middle part taper ball cabinet bucket pick out bulb road of shell from pick out bulb road lower front part
Annular ball mouth blowout；After 16 feet of Chip Microcomputer A 4 export 0.5 second low level, it is spaced 0.5 second, 17 feet of Chip Microcomputer A 4 are defeated
0.5 second low level enters the base stage of PNP triode VT10 out, then, since the 17 feet output low level of Chip Microcomputer A 4 enters
The base stage of PNP triode VT10, PNP triode VT10 can be connected its collector output high level and enter relay K10 anode
Power input, relay K10 obtains electric actuation, and it controls power input tip side and normally opened contact end closure 0.5 second, because,
Electromagnetic gas valve DC3 cathode power supply input terminal is connected with relay K10 normally opened contact end by conducting wire, thus relay K10 obtain it is electric
It is attracted in its 0.5 second kind time for controlling power input tip side and normally opened contact end closure, electromagnetic gas valve DC3 can work once electrified
Its inner spool is opened 0.5 second, compressed air in air accumulator can air inlet through electromagnetic gas valve DC3, exhaust outlet discharge, pressure
Contracting air be discharged while by before shell in lower right section taper ball cabinet bucket pick out bulb road one table tennis table tennis of lower part the lowermost from
The blowout of pick out bulb road lower front part annular ball mouth；It is constantly recycled with this, the compressed air at interval of 0.5 second, in air accumulator
It can be successively discharged from the air inlet of electromagnetic gas valve DC1, DC2, DC3, exhaust outlet, compressed air is successively by lower left quarter before shell, preceding
The lowermost one table tennis table tennis in lower part is constantly from pick out bulb road lower part in lower middle part, preceding lower right section taper ball cabinet bucket pick out bulb road
Front end annular ball mouth blowout, to constantly successively go out the mould of ball towards Left Angle before shell, front, right angular in table tennis
Under formula, achieve the purpose that trainer is independently trained under higher training strength.When trainer or start-up again
When pressing the 4th operation button S4 of wireless remote control unit A3, wireless remote control unit A3 can launch the 4th tunnel wireless communication again
Number, after TWH9238 type wireless receiving circuit component finished product A2 receives the 4th road wireless signal again, TWH9238 type is wirelessly connect
5 feet for receiving circuit unit finished product A2 stop output high level signal, PNP triode VT8, VT9, VT10 emitter and electromagnetic gas valve
DC1, DC2, DC3 are no longer on to obtain electricity condition, thus, compressed air cannot again will be before shell through electromagnetic gas valve DC1, DC2, DC3
The lowermost one table tennis table tennis in lower part goes out from pick out bulb road lower front part annular in the taper ball cabinet bucket pick out bulb road of lower part three
The blowout of ball mouth.
Shown in Fig. 3, it is even more important that the present invention can be by accompanying instruction personnel frequently irregular operation wireless remote control unit
One of operation button of first, second, third and fourth key S1, S2, S3, S4 of A3, control three ball mouths goes out ball mode
And interval time, such as after pressing first key S1, electromagnetic gas valve DC1 work once electrified, compressed air is by the front lower left part of shell
The lowermost one table tennis table tennis in lower part is blown out from pick out bulb road lower front part annular ball mouth in taper ball cabinet bucket pick out bulb road,
Separated in time, after accompanying instruction personnel to press first key S1 again, electromagnetic gas valve DC1 power loss stops working, and shell is front lower
The lowermost one table tennis table tennis in lower part no longer goes out from pick out bulb road lower front part annular in the taper ball cabinet bucket pick out bulb road of middle part
The blowout of ball mouth；And then start-up presses third key S3 after, electromagnetic gas valve DC3 work once electrified, compressed air is by shell
The lowermost one table tennis table tennis in lower part goes out from pick out bulb road lower front part annular in preceding lower right section taper ball cabinet bucket pick out bulb road
The blowout of ball mouth, separated in time, after accompanying instruction personnel to press third key S3 again, electromagnetic gas valve DC3 power loss stops working,
Before shell in lower right section taper ball cabinet bucket pick out bulb road one table tennis table tennis of lower part the lowermost no longer before pick out bulb road lower part
The blowout of end ring shape ball mouth；And then start-up presses first key S1, electromagnetic gas valve DC1 work once electrified, compression sky again
Gas is again by the lowermost one table tennis table tennis in lower part in the front lower left part taper ball cabinet bucket pick out bulb road of shell under pick out bulb road
Portion front end annular ball mouth is constantly blown out.In this way by the above, accompanying the irregular frequent operation wireless remote control unit A3's of instruction personnel
First, second, third and fourth key S1, S2, S3, S4, to go out the mould of ball with constantly irregular, three orientation of direction in table tennis
Under formula, achievees the purpose that unexpected, unpredictable ball orientation out in training, goes out ball interval time, even if keep trainer long
Between training also can not rule grasp three ball mouths go out ball sequence and interval time, the training effect reached.The utility model by
Core control part is used as using Chip Microcomputer A 4 in control unit, Chip Microcomputer A 4 can be entered with known in this field by PC machine programming
The functions of difference control data, so, when production producer can by toward Chip Microcomputer A 4 in programming enter the low electricity of different data control
Flat 12,13,14,15,16,17 foot of output end exports low level time and output low level interval time, to reach
Required electromagnetic gas valve DC1, DC2, DC3 obtains the electric control time.
In Fig. 3, it be direct current 12V, interface size is two points that electromagnetic gas valve DC1, DC2, DC3 brand, which is ATM, operating voltage,.
In voltage regulator circuit: ceramic disc capacitor C1, C2 specification are 0.33 μ F, 0.1 μ F respectively；Power switch S is that common dial type power supply is opened
It closes.In radio receiving unit: resistance R1, R2, R3, R4 resistance value is 1K；NPN triode VT1, VT2, VT3, VT4 model is
9013；Relay K1, K2, K3, K4 are 4100DC6V miniature relays.In control unit: resistance R5 resistance value is 1K；Electrolysis electricity
Holding C3 model is 100 μ F/25V；PNP triode VT5, VT6, VT7, VT8, VT9, VT10 model is 9012；Crystal oscillator BX rule
Lattice are 11.0592MHZ；Relay K5, K6, K7, K8, K9, K10 are 4100DC6V miniature relays.
The present embodiment is preferred embodiments of the present invention, is not intended to limit the invention patent, all in the present embodiment spirit
Any modification, equivalent substitution, improvement and etc. are inside done, should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of novel and multifunctional table tenning ball servicing machine, it is characterised in that by shell, air accumulator, filling gas mouth, taper ball cabinet bucket,
Electromagnetic gas valve, support leg, lithium storage battery, charging socket, voltage regulator circuit, wireless remote control unit, radio receiving unit and control are single
Member is constituted, and the right part of filling gas mouth is welded in the left part aperture of air accumulator, six groups of mounting plates installation of front and back two under air accumulator
Inside the shell on lower part, the filling gas mouth of air accumulator left part is located on the outside of the left part aperture of shell, the front lower ends of shell by it is left extremely
For right tool there are three aperture, the top front-end and back-end of shell are spaced apart from left to right to be respectively welded with three with internal screw thread
Silk seat, taper ball cabinet bucket has identical three, and the rear and front end top of every taper ball cabinet bucket has one to have to open
The fixinig plate in hole, the lower middle part of every taper ball cabinet bucket are welded with a pick out bulb road, the lower bottom part of every pick out bulb road
For enclosed construction, there is an aperture in the lower part rear end of every pick out bulb road, outside the lower part rear end aperture of each pick out bulb road
One is welded on rear side has externally threaded air inlet pipe, and electromagnetic gas valve has identical three, three pick out bulb road lower parts rear end
The external screw thread of aperture intake pipe is screwed in respectively in the exhaust outlet internal screw thread of three electromagnetic gas valves, before the lower part of every pick out bulb road
Respectively there is an aperture at end, and the preceding outside of every pick out bulb road lower front part aperture is welded with an annular ring as ball mouth, storage
A connecting tube is welded on the exhaust outlet of gas tank, longitudinal measure spaced apart there are three from left to right for the lower part of connecting tube
With externally threaded connection air inlet pipe, respectively screwed in the air inlet of three electromagnetic gas valves one have externally threaded air inlet pipe, three
The front external thread of external screw thread and three inlet pipe connections passes through pipe joint connection on rear side of electromagnetic gas valve inlet charge pipe
Together, with six screw rods, six apertures through three taper ball cabinet bucket rear and front ends top fixinig plate screw in six silks respectively
In the internal screw thread of seat, three taper ball cabinet buckets are mounted on shell upper, support leg there are identical four, four support legs
Top is respectively welded at the lower part surrounding of shell, and three taper ball cabinet bucket pick out bulb road lower front part annular ball mouths distinguish position
In the outside of housing front lower end three apertures from left to right, there is an aperture at middle part on the left side of shell, and charging socket is same
Axis power outlet, shaft power source socket are mounted on voltage regulator circuit, radio receiving unit and control on the left of shell in upper middle part aperture
Unit is installed on circuit boards, and circuit board and lithium storage battery are installed along in subassembly wrapper, and subassembly wrapper is mounted on the inside of shell
Right front lower end, the front upper part of subassembly wrapper have an aperture, have an aperture, lithium storage battery positive and negative polarities positioned at the right front lower end of shell
Pass through conducting wire respectively with two terminals of charging socket to connect, lithium storage battery anode and voltage regulator circuit cathode power supply input terminal,
Control unit controls power input and is connected by conducting wire, the cathode power supply output end and radio receiving unit of voltage regulator circuit, control
The cathode power supply input terminal of unit processed is connected by conducting wire, four tunnels of radio receiving unit control power supply signal output end respectively and
The four-way power supply signal input part of control unit is connected by conducting wire, and control power output end in six tunnels of control unit is respectively with three
The cathode power supply input terminal of electromagnetic gas valve is connected by conducting wire, and negative electrode of lithium accumulator and electromagnetic gas valve, wirelessly connect voltage regulator circuit
Receive unit, control unit negative power supply input terminal by wired earth, wireless remote control unit using when trainer and accompany instruction
Personnel carry.
2. a kind of novel and multifunctional table tenning ball servicing machine according to claim 1, it is characterised in that filling gas mouth is in automobile
Valve core print seat on tire.
3. a kind of novel and multifunctional table tenning ball servicing machine according to claim 1, it is characterised in that electromagnetic gas valve work electricity
Pressure is direct current 12V, and inner spool is closed type structure.
4. a kind of novel and multifunctional table tenning ball servicing machine according to claim 1, it is characterised in that three taper ball cabinets
The pick out bulb road of bucket, the preceding outside of every pick out bulb road lower front part aperture are welded with an annular ring as ball mouth, are located at
Annular ball mouth on the outside of the aperture of housing front lower end first is opened for second towards left side before shell positioned at housing front lower end
Annular ball mouth court of the annular ball mouth towards the positive front side of shell, on the outside of the third aperture of housing front lower end on the outside of hole
To shell front right side, the pick out bulb road internal diameter of three taper ball cabinet buckets and the internal diameter of three pick out bulb road lower front part ball mouths
It is bigger than the outer diameter of table tennis.
5. a kind of novel and multifunctional table tenning ball servicing machine according to claim 1, it is characterised in that support leg is by upper interior spiral shell
Line pipe, screw rod and support base composition, screw rod lower weld screw in the internal screw thread of riffled tube on support base top, screw rod top
It is interior, when the top of four support legs is respectively welded at the lower part surrounding of shell, the upper part of riffled tube in four support legs
It is not welded on the lower part surrounding of shell.
6. a kind of novel and multifunctional table tenning ball servicing machine according to claim 1, it is characterised in that voltage regulator circuit is by three ends
Fixed output voltage stabilizer, ceramic disc capacitor and power switch composition, power switch are mounted on the inside of subassembly wrapper front upper part aperture, and three
Fixed output voltage stabilizer, ceramic disc capacitor is held to connect with power switch by circuit board wiring, the fixed output voltage stabilizer model in three ends
It is 7805,1 foot of cathode power supply input terminal of the fixed output voltage stabilizer in power switch one end and three ends, first ceramic disc capacitor one end
Connection, 3 foot of cathode power supply output end of the fixed output voltage stabilizer in three ends and second ceramic disc capacitor one end connection, the fixation of three ends are defeated
2 foot of negative power supply input terminal of voltage-stablizer and first ceramic disc capacitor other end, second ceramic disc capacitor other end ground connection out, electricity
The operation handle front end of source switch is sequentially located at the outside of the aperture of subassembly wrapper front upper part, the right front lower end aperture of shell.
7. a kind of novel and multifunctional table tenning ball servicing machine according to claim 1, it is characterised in that radio receiving unit by
TWH9238 type wireless receiving circuit component, resistance, NPN triode and relay composition, are connected by circuit board wiring therebetween,
The TWH9238 type wireless receiving circuit component way of output is self-locking output, TWH9238 type wireless receiving circuit component and
TWH9236 type wireless remote control transmit circuit component matches, the cathode power supply input of TWH9238 type wireless receiving circuit component
Hold 7 feet and four relay cathode power supply input terminals and control power input connection, TWH9238 type wireless receiving circuit component
Four high level output ends, 2,3,4,5 foot connected respectively with four resistance one end, four resistance other ends respectively with four NPN
The base stage of triode connects, and the collector of four NPN triodes is connected with four relay negative power supply input terminals respectively,
1 foot of negative power supply input terminal of TWH9238 type wireless receiving circuit component and the emitter of four NPN triodes ground connection,
6 feet of TWH9238 type wireless receiving circuit finished product are hanging.
8. a kind of novel and multifunctional table tenning ball servicing machine according to claim 1, it is characterised in that control unit is by monolithic
Mechanical, electrical resistance, electrolytic capacitor, PNP triode, crystal oscillator and relay composition, are connected by circuit board wiring, single-chip microcontroller model therebetween
It is AT89C2051/24PI, 1 foot of reset terminal of single-chip microcontroller is connected with resistance one end, external 4 foot of crystal oscillator end, 5 feet point of single-chip microcontroller
It is not connected with crystal oscillator both ends, 10 foot of negative power supply input terminal and the resistance other end of single-chip microcontroller, electrolytic capacitor cathode, six relays
20 foot of cathode power supply input terminal of device negative power supply input end grounding, single-chip microcontroller is connected with electrolytic capacitor anode, and the six of single-chip microcontroller
A 12,13,14,15,16,17 foot of low level output end and six PNP triode base stages are separately connected, six PNP triode collection
Electrode is connected with six relay cathode power supply input terminals respectively, the control power input tip side connection of six relays, single
2,3,6,7,8,9,11,18,19 foot of piece machine is hanging.
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| CN201710981458.3A CN109692460A (en) | 2017-10-20 | 2017-10-20 | A kind of novel and multifunctional table tenning ball servicing machine |
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| CN201710981458.3A CN109692460A (en) | 2017-10-20 | 2017-10-20 | A kind of novel and multifunctional table tenning ball servicing machine |
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| CN201710981458.3A Pending CN109692460A (en) | 2017-10-20 | 2017-10-20 | A kind of novel and multifunctional table tenning ball servicing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180146A (en) * | 2019-06-03 | 2019-08-30 | 甘肃农业大学 | A kind of spherical shape sports equipment promotion transmission device |
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