CN109173221A - A kind of table tennis ball serving device and its adjusting method convenient for adjusting - Google Patents
A kind of table tennis ball serving device and its adjusting method convenient for adjusting Download PDFInfo
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- CN109173221A CN109173221A CN201811212826.9A CN201811212826A CN109173221A CN 109173221 A CN109173221 A CN 109173221A CN 201811212826 A CN201811212826 A CN 201811212826A CN 109173221 A CN109173221 A CN 109173221A
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- plate
- connecting plate
- table tennis
- threaded rod
- club
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Classifications
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- 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
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/16—Table tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/09—Adjustable dimensions
Abstract
The invention discloses a kind of table tennis ball serving devices convenient for adjusting, comprising: rack, angle adjusting mechanism and service robot, service robot are installed on angle adjusting mechanism, and angle adjusting mechanism is installed in rack；Service robot includes smashing club for placing the placement pipe of table tennis, for release table tennis and being used to provide the service cylinder of power to smashing club, service robot can realize angular adjustment under the action of angle adjusting mechanism, to realize the adjusting of ball launch angle, it is convenient for table tennis training.
Description
Technical field
The present invention relates to table tennis training technical field of tools, specially a kind of table tennis ball serving device convenient for adjusting and
Its adjusting method.
Background technique
Related table tennis training equipment can't be applied in hands-on at present, it is also necessary to which training mate person carries out trainer
Training mate, existing training device can not simulate training mate person's attack after service, smash, chop the chop, the highly difficult instruction such as froehand-backhand attacking driving
White silk movement, will also lean on training mate person to realize, such training mate person's great work intensity, cannot be accurate after low efficiency and training mate person's fatigue
Various training actions are provided, the promotion of trainer's technical ability is directly affected.
Summary of the invention
In view of the above problems, the present invention provides a kind of table tennis ball serving device and its adjusting method convenient for adjusting, knot
Structure is exquisite, facilitates adjusting ball launch angle, can effectively solve the problems in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of table tennis ball serving device convenient for adjusting, comprising: rack, angle adjusting mechanism and service robot, service robot peace
Loaded on angle adjusting mechanism, angle adjusting mechanism is installed in rack；Service robot include for place the placement pipe of table tennis,
It smashes club for release table tennis and is used to provide the service cylinder of power to smashing club.
By using above-mentioned technical proposal, service robot can realize angular adjustment under the action of angle adjusting mechanism, thus
It realizes the adjusting of ball launch angle, is convenient for table tennis training.
As a preferred technical solution of the present invention, angle adjusting mechanism includes: parallelogram frame, threaded rod, set
Pipe and driving mechanism, service robot are installed on parallelogram frame, and threaded rod is arranged in parallelogram frame, under threaded rod
End is mounted directly or is fixedly installed in rack indirectly by a pedestal, and lower end is threaded on threaded rod and is resisted against
Parallelogram frame, parallelogram frame can change angle under the action of casing；It the upper end of casing rotatably can not be upper and lower
It is movably attached driving mechanism；Casing is driven by driving mechanism, and driving mechanism is installed in rack.By using above-mentioned technical side
Case, the specific structure of angle adjusting mechanism are put down so that service robot generates the variation of angle with the deformation of parallelogram frame
Row quadrangle frame is then deformed by moving up and down for casing, and simple ingenious easy manipulation can efficiently adjust service robot
Angle.
As a preferred technical solution of the present invention, driving mechanism includes motor and non-circular prism, and motor is installed on
In rack, the output shaft of motor is fixedly connected with non-circular prism, and non-circular prism is plugged on the upper end of casing, and casing is corresponding
Plug-in position offers the through-hole to match with the cross sectional shape of non-circular prism.By using above-mentioned technical proposal, driving machine
The specific structure of structure can make moving up and down for casing more reliable, further ensure casing with respect to non-circular in driving mechanism
Prism not can be rotated and can move up and down.
As a preferred technical solution of the present invention, non-circular prism is hexagonal prisms.By using above-mentioned technical proposal,
Hexagonal prisms are a kind of scheme of non-circular prism, certainly can also be the prism of other multi-sided cross-sectional shapes, it will be also be appreciated that
In the scope of the present invention, its purpose is that casing can be driven to rotate, casing rotation, but do not sent out between casing and hexagonal prisms
It is raw to relatively rotate, and can make casing that can move up and down relative to hexagonal prisms.
As a preferred technical solution of the present invention, parallelogram frame includes head and the tail successively hinged first connection
Plate, connecting rod, the second connecting plate and mounting plate, the first connecting plate and the second connecting plate are arranged in parallel, and service robot is installed on installation
On plate, threaded rod is arranged in the first connecting plate and the second connecting plate, and the second connecting plate is offered in the position that threaded rod is worn
Long hole；Lower end is resisted against on the second connecting plate；Push plate is threaded on threaded rod, push plate is directly or indirectly resisted against
The lower surface of first connecting plate；Spring is arranged on threaded rod, spring one end is resisted against the first connecting plate, and the other end directly abuts
Or be resisted against on the second connecting plate indirectly by a top plate, top plate is set on threaded rod.By using above-mentioned technical proposal, put down
The specific structure of row quadrangle frame may make that the angular adjustment of service robot is safer steady, and orderly reliable, spring connects to second
Fishplate bar generates upward active force, and the second connecting plate is resisted against on casing, and moving up and down for casing can be such that the second connecting plate generates
Linkage, to make parallelogram frame deform, to adjust the angle of service robot.
As a preferred technical solution of the present invention, the flank threads of the first connecting plate, which are connected with, can hold out against threaded rod
Tight lifting pin.By using above-mentioned technical proposal, the first connecting plate can be fixed on threaded rod by tight lifting pin, or can adjust
The position of one connecting plate and then the first connecting plate is fixed on threaded rod, it is conveniently adjusted as needed, it is quick reliable.
As a preferred technical solution of the present invention, service robot further include: support rod, support plate and guide pipe, support
The inner end of bar is fixed on the lateral wall of parallelogram frame, and support plate is installed on the outer end of support rod, and guide pipe is fixedly mounted
It is fixed on guide pipe vertically on the lateral wall of support plate, placing pipe, the lower end for placing pipe is connected with guide pipe, smashes club
Inner end be directly or indirectly connected to the output shaft of service cylinder, the outer end for smashing club passes through support plate and is inserted into the interior of guide pipe
Portion.By using above-mentioned technical proposal, the specific structure and composition characteristic of service robot move convenient for smashing the smooth stabilization of club,
Be conducive to table tennis stablizes percussion.
As a preferred technical solution of the present invention, the inner end for smashing club is connected on a pressing plate, pressing plate connection service
The output shaft of cylinder, the outside end position for smashing club offer pressure-vaccum hole；Compressing gasbag, pressure are equipped between pressing plate and support plate
One end of contracting air bag is fixed on pressing plate, and the other end is fixed on the supporting plate, and the air inlet/outlet of compressing gasbag is connected with hose, soft
The pipe other end is connected to pressure-vaccum hole, and the check valve of connection free surrounding space is additionally provided on compressing gasbag.By using above-mentioned technology
Scheme, the setting of compressing gasbag can assist hitting table tennis, and the ball speed and vigor that goes out of table tennis is made to be effectively controlled and mention
Height is conducive to improve trained difficulty level.
A kind of adjusting method of the table tennis ball serving device convenient for adjusting, includes the following steps:
A. driving mechanism drives casing rotation, and the casing of rotation moves up and down under the action of threaded rod, acts on parallel
On quadrangle frame, parallelogram frame is made to deform, the mounting plate in parallelogram frame is made to change angle, thus completion pair
The adjusting of the ball launch angle of service robot；
B. it when the output shaft of service cylinder ejects outward, smashes club and is displaced outwardly, thus by the table tennis top dome in guide pipe
Out；It when the output shaft of service cylinder is to contract, smashes club and inwardly withdraws, next table tennis is managed from placing under the effect of gravity
Fall into guide pipe.By using above-mentioned technical proposal, adjusting method is simple and reliable, and the angle of service robot is easy to control easy-to-use, has
It practises a ball game difficulty and training achievement conducive to raising.
As a preferred technical solution of the present invention, in step A, when casing moves down, casing acts on the second company
On fishplate bar, move down the second connecting plate, the first connecting plate is fixed, and the second connecting plate drives mounting plate inclination, thus
Adjust the angle of mounting plate；When casing moves up, the second connecting plate moves up under the action of the spring, and mounting plate is driven to make
Restore movement；
In step B, when the output shaft of service cylinder ejects outward, pressing plate compresses compressing gasbag, and compressing gasbag is to outlet
Gas, and gas is imported to the pressure-vaccum hole for smashing club outer end by hose, air blast effect is played to table tennis；The output of service cylinder
When axis is shunk, compressing gasbag air-breathing, air is smash in the pressure-vaccum hole of club outer end and hose sucking compressing gasbag, in pressure-vaccum hole
Inlet end forms suction so that table tennis is sucked.By using above-mentioned technical proposal, the angular adjustment of service robot and out ball speed and
Strength mentions raising, is conducive to improve trained difficulty and changeability, so that trainer be made more effectively to be taken exercise.
Compared with prior art, the beneficial effects of the present invention are: structure is simple exquisite and reliable, easy to use, service robot
Angular adjustment fast facilitate, it is easy to promote and utilize.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of another state of Fig. 1 of the present invention；
Fig. 3 is the sectional view in Fig. 1 of the present invention at A-A；
In figure: 1- pedestal, 2- threaded rod, 3- push plate, the first connecting plate of 4-, the second connecting plate of 5-, 6- top plate, 7- spring,
8- mounting plate, 9- connecting rod, 10- service cylinder, 11- support rod, 12- support plate, 13- guide pipe, 14- pressing plate, 15- smash ball
Bar, 16- compressing gasbag, 17- hose, 18- pressure-vaccum hole, 19- place pipe, 20- table tennis, 21- casing, 22- hexagonal prisms, 23- electricity
Machine, 24- rack, 25- tight lifting pin.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, ordinary skill staff are obtained all without making creative work
Other embodiments shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution:
A kind of table tennis ball serving device convenient for adjusting, comprising: rack 24, angle adjusting mechanism and service robot, service robot
It is installed on angle adjusting mechanism, angle adjusting mechanism is installed in rack 24；Service robot includes for placing table tennis 20
Pipe 19 is placed, club 15 is smash for release table tennis 20 and is used to provide the service cylinder 10 of power to smashing club 15.
Service robot further include: the outer of parallelogram frame is fixed in support rod 11, support plate 12 and guide pipe 13, the inner end of support rod 11
On side wall, support plate 12 is installed on the outer end of support rod 11, and guide pipe 13 is fixedly installed on the lateral wall of support plate 12, places
Pipe 19 is fixed on vertically on guide pipe 13, and the lower end for placing pipe 19 is connected with guide pipe 13, smash club 15 inner end it is direct or
It is indirectly coupled to the output shaft of service cylinder 10, the outer end for smashing club 15 passes through support plate 12 and is inserted into the inside of guide pipe 13.
Angle adjusting mechanism includes: that parallelogram frame, threaded rod 2, casing 21 and driving mechanism, service robot are installed on flat
On row quadrangle frame, threaded rod 2 is arranged in parallelogram frame, and the lower end of threaded rod 2 is mounted directly or indirectly by a bottom
Seat 1 is fixedly installed in rack 24, and 21 lower thread of casing is connected on threaded rod 2 and is resisted against parallelogram frame, in parallel
Quadrangle frame can change angle under the action of casing 21；The upper end of casing 21 not can be rotated and can connect driving up or down
Mechanism；Casing 21 is driven by driving mechanism, and driving mechanism is installed in rack 24.
Driving mechanism includes motor 23 and non-circular prism, and non-circular prism is hexagonal prisms 22 or other polygon-prisms.
Motor 23 is installed in rack 24, and the output shaft of motor 23 is fixedly connected with non-circular prism, and non-circular prism is plugged on casing 21
Upper end, casing 21 offers the through-hole to match with the cross sectional shape of non-circular prism in corresponding plug-in position.
Parallelogram frame includes head and the tail successively hinged the first connecting plate 4, connecting rod 9, the second connecting plate 5 and mounting plate
8, the first connecting plate 4 and the second connecting plate 5 are arranged in parallel, and service robot is installed on mounting plate 8, and threaded rod 2 is arranged in the first company
In fishplate bar 4 and the second connecting plate 5, the second connecting plate 5 offers long hole in the position that threaded rod 2 is worn；21 lower end of casing against
In on the second connecting plate 5；Push plate 3 is threaded on threaded rod 2, push plate 3 is directly or indirectly resisted against the first connecting plate 4
Lower surface；Spring 7 is arranged on threaded rod 2,7 one end of spring is resisted against the first connecting plate 4, and the other end directly abuts or connection
It crosses a top plate 6 to be resisted against on the second connecting plate 5, top plate 6 is set on threaded rod 2.
More specifically, pedestal 1 is bolted on ground, and 1 upper surface middle part of pedestal is vertically fixed threaded rod
2。
Push plate 3 is threaded on threaded rod 2, and rotation push plate 3 can adjust the height of parallelogram frame, threaded rod up and down
2 connect with the corresponding via clearance on the first connecting plate 4, and threaded rod 2 is connect with the long interporal lacuna on the second connecting plate 5,
The lower surface of second connecting plate 5 is equipped with top plate 6, and top plate 6 is held out against by the sliding of spring 7 in the lower surface of the second connecting plate 5, spring
7 are set in the outside of threaded rod 2.
The outside of parallelogram frame is mounting plate 8, and inside is connecting rod 9；Hair is fixed on the inner sidewall of mounting plate 8
Ball cylinder 10 is fixed with support rod 11 on the lateral wall of mounting plate 8, and the outer end of support rod 11 is fixed with support plate 12, support
Guide pipe 13 is fixed on the lateral wall of plate 12, the output shaft of service cylinder 10 passes through mounting plate 8 and is fixedly connected with pressing plate 14, presses
It is fixed in the middle part of the lateral wall of plate 14 and smashes club 15, smash the inside that club 15 is slidably inserted into guide pipe 13, in pressing plate 14 and support
Compressing gasbag 16 is equipped between plate 12, one end of compressing gasbag 16 is fixed on pressing plate 14, and the other end is fixed in support plate 12,
The air inlet/outlet of compressing gasbag 16 is connected with hose 17, hose 17 pass through support plate 12, guide pipe 13 side wall and smash club
The pressure-vaccum hole 18 inside club 15 is smash in 15 side wall connection.The check valve of connection free surrounding space is additionally provided on compressing gasbag 16.
Pipe 19 is placed in being fixedly arranged above for guide pipe 13, table tennis 20 is placed in vertical setting of types and places in pipe 19, table tennis
20 fall under gravity into guide pipe 13；The inside of the upper end threading 21 of threaded rod 2, screwed pipe and 21 spiral shell of casing
Line connects, and slidably connects hexagonal prisms 22 at the upper surface center of casing 21, the upper end of hexagonal prisms 22 is fixedly connected with motor 23
Output shaft, motor 23 are fixed in rack 24.
Adjusting method is as follows:
(1), the height that parallelogram frame is adjusted by about 3 push plate of rotation, can adjust the height of service；
(2), motor 23 drives hexagonal prisms 22 to rotate, and hexagonal prisms 22 drive casing 21 to rotate, work of the casing 21 in threaded rod 2
It can move up and down under, spring 7 can make 5 upper surface of the second connecting plate and the lower surface of casing 21 begin by holding out against top plate 6
Terminating touching, and parallelogram frame can deform at this time, and mounting plate 8 is made to carry out angular adjustment, and parallelogram frame can be around
Threaded rod 2 rotates, and facilitates the direction of adjustment mounting plate 8, after adjusting direction, passes through the tight lifting pin 25 of 4 side of the first connecting plate
Threaded rod 2 is held out against, so as to the direction of fixed mounting plate 8, to complete the adjusting to ball launch angle；
(3), when service cylinder 10 ejects, the table tennis 20 in guide pipe 13 is smash club 15 and is ejected outward, while pressing plate
14 compress compressing gasbag 16, and compressing gasbag 16 is vented outwards, and gas is smash blowing for 15 front end of club by the importing of hose 17
Sucker 18, can blow out table tennis 20, increase the initial velocity of table tennis 20, at the same smash club 15 it is protruding when can block
The lower end for placing pipe 19, does not allow next table tennis 20 to fall；
(4), it when service cylinder 10 is shunk, smashes club 15 and inwardly withdraws, next table tennis 20 is fallen under gravity into
Guide pipe 13, while 16 air-breathing of compressing gasbag, air is smash the pressure-vaccum hole 18 of 15 front end of club, hose 17 sucks compressing gasbag
16, the inlet end in pressure-vaccum hole 18 forms suction, and table tennis 20 can be sucked, prevent it from skidding off guide pipe 13.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of table tennis ball serving device convenient for adjusting characterized by comprising rack (24), angle adjusting mechanism and hair
Ball device, the service robot are installed on the angle adjusting mechanism, and the angle adjusting mechanism is installed on the rack (24)；
The service robot includes for placing the placement pipe (19) of table tennis (20), for smashing club (15) for what table tennis (20) were released
And for the service cylinder (10) for smashing club (15) offer power.
2. a kind of table tennis ball serving device convenient for adjusting according to claim 1, which is characterized in that the angular adjustment
Mechanism includes: that parallelogram frame, threaded rod (2), casing (21) and driving mechanism, service robot are installed on parallelogram frame
On, the threaded rod (2) is arranged in the parallelogram frame, and the lower end of threaded rod (2) is mounted directly or indirectly by one
Pedestal (1) is fixedly installed on rack (24), and described sleeve pipe (21) lower thread is connected on the threaded rod (2) and is resisted against
The parallelogram frame, the parallelogram frame can change angle under the action of casing (21)；Described sleeve pipe (21)
Upper end not can be rotated and can connect the driving mechanism up or down；Described sleeve pipe (21) is driven by the driving mechanism, institute
Driving mechanism is stated to be installed on the rack (24).
3. a kind of table tennis ball serving device convenient for adjusting according to claim 2, which is characterized in that the driving mechanism
Including motor (23) and non-circular prism, motor (23) is installed on rack (24), and the output shaft of motor (23) is fixedly connected with institute
Non-circular prism is stated, non-circular prism is plugged on the upper end of described sleeve pipe (21), and casing (21) is opened up in corresponding plug-in position
There is the through-hole to match with the cross sectional shape of non-circular prism.
4. a kind of table tennis ball serving device convenient for adjusting according to claim 3, which is characterized in that the non-circular rib
Column is hexagonal prisms (22).
5. a kind of table tennis ball serving device convenient for adjusting according to claim 2, which is characterized in that parallel four side
Shape frame includes head and the tail successively hinged the first connecting plate (4), connecting rod (9), the second connecting plate (5) and mounting plate (8), and described the
One connecting plate (4) and the second connecting plate (5) are arranged in parallel, and the service robot is installed on mounting plate (8), the threaded rod (2)
It is arranged in the first connecting plate (4) and the second connecting plate (5), second connecting plate (5) is opened in the position that threaded rod (2) is worn
Equipped with long hole；Described sleeve pipe (21) lower end is resisted against on second connecting plate (5)；It is threadedly coupled on the threaded rod (2)
Have push plate (3), push plate (3) is directly or indirectly resisted against the lower surface of the first connecting plate (4)；It is arranged on the threaded rod (2)
Spring (7), spring (7) one end are resisted against first connecting plate (4), and the other end directly abuts or indirectly by a top plate (6)
It is resisted against on the second connecting plate (5), top plate (6) is set on threaded rod (2).
6. a kind of table tennis ball serving device convenient for adjusting according to claim 5, which is characterized in that first connection
The flank threads of plate (4) are connected with the tight lifting pin (25) that can hold out against threaded rod (2).
7. a kind of table tennis ball serving device convenient for adjusting according to claim 2, which is characterized in that the service robot is also
It include: support rod (11), support plate (12) and guide pipe (13), the outer of parallelogram frame is fixed in the inner end of support rod (11)
On side wall, support plate (12) is installed on the outer end of support rod (11), and guide pipe (13) is fixedly installed in the outside of support plate (12)
It on wall, places pipe (19) and is fixed on guide pipe (13) vertically, the lower end for placing pipe (19) is connected with guide pipe (13), smashes ball
The inner end of bar (15) is directly or indirectly connected to the output shaft of service cylinder (10), and the outer end for smashing club (15) passes through support plate
(12) and it is inserted into the inside of guide pipe (13).
8. a kind of table tennis ball serving device convenient for adjusting according to claim 7, which is characterized in that smash club (15)
Inner end is connected on a pressing plate (14), and pressing plate (14) connects the output shaft of service cylinder (10), smashes the outside end of club (15)
Position offers pressure-vaccum hole (18)；Compressing gasbag (16) are equipped between pressing plate (14) and support plate (12), compressing gasbag (16)
One end is fixed on pressing plate (14), and the other end is fixed on support plate (12), and the air inlet/outlet of compressing gasbag (16) is connected with soft
It manages (17), hose (17) other end is connected to pressure-vaccum hole (18), and the list of connection free surrounding space is additionally provided on compressing gasbag (16)
To valve.
9. a kind of adjusting method of the table tennis ball serving device convenient for adjusting according to claim 7, which is characterized in that including
Following steps:
A. driving mechanism drives casing (21) rotation, and the casing (21) of rotation moves up and down under the action of threaded rod (2), acts on
In on parallelogram frame, parallelogram frame is made to deform, the mounting plate (8) in parallelogram frame is made to change angle,
To complete the adjusting to the ball launch angle of service robot；
B. it when the output shaft of service cylinder (10) ejects outward, smashes club (15) and is displaced outwardly, thus by guide pipe (13)
Table tennis (20) ejection；When the output shaft of service cylinder (10) is to contract, smashes club (15) and inwardly withdraw, next table tennis
(20) guide pipe (13) are fallen into from placement pipe (19) under the effect of gravity.
10. a kind of adjusting method of the table tennis ball serving device convenient for adjusting as claimed in claim 9, it is characterised in that:
Its parallelogram frame includes head and the tail successively hinged the first connecting plate (4), connecting rod (9), the second connecting plate (5) and peace
Loading board (8), the first connecting plate (4) and the second connecting plate (5) are arranged in parallel, and service robot is installed on mounting plate (8), threaded rod
(2) it is arranged in the first connecting plate (4) and the second connecting plate (5), the second connecting plate (5) is opened in the position that threaded rod (2) is worn
Equipped with long hole；Casing (21) lower end is resisted against on the second connecting plate (5)；It is threaded with push plate (3) on threaded rod (2), pushes away
Plate (3) is directly or indirectly resisted against the lower surface of the first connecting plate (4)；It is arranged on threaded rod (2) spring (7), spring (7) one
End is resisted against the first connecting plate (4), and the other end is directly abutted or is resisted against on the second connecting plate (5) indirectly by a top plate (6),
Top plate (6) is set on threaded rod (2)；The inner end for smashing club (15) is connected on a pressing plate (14), pressing plate (14) connection service
The output shaft of cylinder (10), the outside end position for smashing club (15) offer pressure-vaccum hole (18)；Pressing plate (14) and support plate
(12) compressing gasbag (16) are equipped between, one end of compressing gasbag (16) is fixed on pressing plate (14), and the other end is fixed on support
On plate (12), the air inlet/outlet of compressing gasbag (16) is connected with hose (17), and hose (17) other end is connected to pressure-vaccum hole (18),
The check valve of connection free surrounding space is additionally provided on compressing gasbag (16)；
In step A, when casing (21) moves down, casing (21) is acted on the second connecting plate (5), makes the second connecting plate (5)
It moves down, the first connecting plate (4) is fixed, and the second connecting plate (5) drives mounting plate (8) inclination, to adjust mounting plate
(8) angle；When casing (21) moves up, the second connecting plate (5) moves up under the action of spring (7), drives installation
Plate (8) is made to restore movement；
In step B, when the output shaft of service cylinder (10) ejects outward, pressing plate (14) compresses compressing gasbag (16), compressed gas
Capsule (16) is vented outwards, and gas is imported to the pressure-vaccum hole (18) for smashing club (15) outer end by hose (17), to table tennis
(20) air blast effect is played；When the output shaft of service cylinder (10) is shunk, compressing gasbag (16) air-breathing, air is smash club (15)
In the pressure-vaccum hole (18) of outer end and hose (17) sucking compressing gasbag (16), the inlet end in pressure-vaccum hole (18) forms suction to inhale
Firmly table tennis (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811212826.9A CN109173221A (en) | 2018-10-18 | 2018-10-18 | A kind of table tennis ball serving device and its adjusting method convenient for adjusting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811212826.9A CN109173221A (en) | 2018-10-18 | 2018-10-18 | A kind of table tennis ball serving device and its adjusting method convenient for adjusting |
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| CN109173221A true CN109173221A (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811212826.9A Pending CN109173221A (en) | 2018-10-18 | 2018-10-18 | A kind of table tennis ball serving device and its adjusting method convenient for adjusting |
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| CN111589085A (en) * | 2020-05-14 | 2020-08-28 | 汪军锋 | Volleyball smash training device capable of being exercised by single person |
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| CN106861160A (en) * | 2017-04-20 | 2017-06-20 | 南京工业职业技术学院 | A kind of football dropping feeder |
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Application publication date: 20190111 |