CN206823112U - A kind of physical culture vollyball supplemental training device - Google Patents
A kind of physical culture vollyball supplemental training device Download PDFInfo
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- CN206823112U CN206823112U CN201621248478.7U CN201621248478U CN206823112U CN 206823112 U CN206823112 U CN 206823112U CN 201621248478 U CN201621248478 U CN 201621248478U CN 206823112 U CN206823112 U CN 206823112U
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Abstract
It the utility model is related to a kind of trainer, more particularly to a kind of physical culture vollyball supplemental training device.The technical problems to be solved in the utility model is to provide one kind and picks up few ball service time consumption, training mate quality height, the convenient physical culture vollyball supplemental training device of training.In order to solve the above-mentioned technical problem, the utility model provides such a physical culture vollyball supplemental training device, includes bracing wire, the first connecting seat, head rod, the first directive wheel, the first cylinder, bottom plate, the second connecting seat, right support, fixed mount, first spring etc.；Rotary type is connected with ellipsoid cam on first connecting seat, and the second connecting seat, fixed mount and the first spring are sequentially provided with from bottom to up on the left of right support.The utility model, which has reached, picks up few ball service time consumption, training mate quality height, the convenient effect of training, trains not by man's activity, is trained sportsman whenever and wherever possible, ultrahigh in efficiency, save many man's activities.
Description
Technical field
It the utility model is related to a kind of trainer, more particularly to a kind of physical culture vollyball supplemental training device.
Background technology
Physical culture is also known as sports, is that people follow the growth-development law of human body and the mechanics of body, passes through body
The modes such as body exercise, technique drill, athletic competition, which reach, builds up health, and improves level of technique, rich cultural life is mesh
Social activities.Physical culture, also known as sports, be for it is all in a organized way or inorganization participates in, by using, maintain or change
Enter physical efficiency, the general name of the athletics body kinematics of amusement is provided for participant.Hundreds of sports, its form are shared in the world
Vary, some only needs two people to complete, and some then needs more people to form a team to complete.
One of vollyball, ball game project, court rectangle, centre are separated with high net, and opposing teams respectively account for a side in court,
Sportsman with hand handle ball, play many times from network by sky.The ball that volleyball movement uses, shell is done with sheepskin or artificial leather, rubber does courage, greatly
It is small similar with football.
Training refers to that people makes trainee that physiological reaction occur so as to change the activity of trainee's quality, ability consciously.
It is the same with education, a kind of means of training and culture people, and at present by artificial progress athletic training, artificial training mate not only work
Work amount is big, and it is not accurate enough to serve a ball.
Existing volleyball training, which relies primarily on the method that is accomplished manually and existed, picks up that ball service time consumption is more, training mate quality is joined
Poor uneven, undertrained the shortcomings that facilitating, therefore need research and development one kind badly and pick up few ball service time consumption, training mate quality height, training
Convenient physical culture vollyball supplemental training device.
Utility model content
(1) technical problems to be solved
When the method that the utility model is accomplished manually to overcome existing volleyball training to rely primarily on is in the presence of ball service is picked up
Between expend it is more, training mate quality is uneven, undertrained the shortcomings that facilitating, the technical problems to be solved in the utility model is to provide
One kind picks up few ball service time consumption, training mate quality height, the convenient physical culture vollyball supplemental training device of training.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides such a physical culture vollyball supplemental training device,
Include bracing wire, the first connecting seat, head rod, the first directive wheel, the first cylinder, bottom plate, the second connecting seat, right support,
Fixed mount, the first spring, fixed plate, slide rail, sliding block, lifting cylinder body, the second connecting rod, piston, ellipsoid cam, second are oriented to
Wheel, the 3rd directive wheel, the second cylinder, movable plate, the 3rd connecting rod, second spring, movable block, service cylinder, the first electromagnet, the
Two electromagnet and collection bucket, bottom plate top are sequentially provided with the second directive wheel, the first connecting seat, the first directive wheel and the right side from left to right
Support, rotary type is connected with ellipsoid cam on the first connecting seat, is sequentially provided with the second connecting seat, solid on the left of right support from bottom to up
Determine frame and the first spring, the second connecting seat left pivot movement formula is connected with the first cylinder, the first connection is connected with the left of the first cylinder
Bar, head rod are connected with ellipsoid cam rotation formula, and lifting cylinder body, the outer top left of lifting cylinder body are fixed with the left of fixed mount
Side is provided with the 3rd directive wheel, and piston is provided with inside lifting cylinder body, and piston coordinates with lifting cylinder body, and piston base connects with ellipsoid cam
Touch, top land is provided with the second connecting rod, and the second connecting rod passes through lifting cylinder body, sliding block, sliding block are provided with the top of the second connecting rod
Top is provided with slide rail, is connected on the right side of slide rail with the first spring, bracing wire is provided with the left of slide rail, bracing wire is around the 3rd directive wheel, second
Directive wheel and the first directive wheel, bracing wire are also connected with head rod, and fixed plate is provided with the top of slide rail, hair is provided with the top of fixed plate
Ball cylinder and the second cylinder, service cylinder are located at the second cylinder right, and service cylinder left wall is provided with the first pilot hole, and left side is pacified in service cylinder
Equipped with second spring, second spring right-hand member is connected with movable block, and the second electromagnet is provided with the left of movable block, and the outer top of service cylinder is set
There is collection bucket, the second cylinder right-hand member is provided with movable plate, is provided with the 3rd connecting rod on the right side of movable plate, the 3rd connecting rod is led through first
Xiang Kong, the 3rd connecting rod right side are provided with the first electromagnet, and magnet two contacts with the second electromagnet.
Preferably, electric pushrod and pole are also included, right side rotary type is connected with electric pushrod in collection bucket, electronic to push away
Bar rotary type is connected with pole, and pole rotary type is connected to right side in collection bucket.
Preferably, also include block rubber, block rubber is provided with the right side of movable block.
Preferably, bracing wire is steel wire rope.
Preferably, bottom plate material is Q235 steel.
Preferably, fixed plate thickness is 1.8 centimetres.
Preferably, cylinder of serving a ball forms 50 ° of angles with fixed plate.
Operation principle：When people need to carry out volleyball training, vollyball is put into collection bucket, so as to fall in service cylinder,
Then it is powered to the second electromagnet and the first electromagnet, opposite magnetic is carried after the second electromagnet and the energization of the first electromagnet,
Second electromagnet and the first electromagnet are attracting, start the second cylinder and shorten, and the second cylinder drives movable plate to be moved to the left, the company of drive
Extension bar is moved to the left, and so as to drive the second electromagnet and the first electromagnet to be moved to the left, is driven movable block to be moved to the left, is worked as movement
Block is moved to the left to correct position, while is powered off to the second electromagnet and the first electromagnet, in the presence of second spring elastic force,
Movable block quickly moves right, and so as to which the vollyball served a ball in cylinder be projected out, after ball is projected out, starts the elongation of the second cylinder,
Second cylinder drives movable plate to move right, and drives the 3rd connecting rod to move right, and drives the first electromagnet to move right, when the
When two electromagnet and the first electromagnet contact, the second cylinder is closed, when people will train high clear, starts the first cylinder and stretches
Long, the first cylinder drives head rod to be moved to the left, and drives ellipsoid cam to swing to the left, so as to be moved up with piston,
The second connecting rod is driven to move up, band movable slider moves up, and drives slide rail to move up, and drives fixed plate and fixed plate
On device integrally move up, when head rod moves right, head rod passes through bracing wire and drives slide rail and slide rail
On device be integrally moved to the left, when the device on slide rail and slide rail is integrally moved to the left to correct position, close first
Cylinder, so as to which people can carry out the high clear training of vollyball, at the end of training, start the first cylinder and shorten, the first cylinder band
Dynamic head rod moves right, and drives ellipsoid cam to swing to the right, so as to be moved down with piston, drives the second connecting rod
Move down, band movable slider moves down, and drives slide rail to move down, drive the device in fixed plate and fixed plate overall to
Lower movement, the first cylinder, which shrinks, loosens bracing wire, and in the presence of the first spring force, the device on slide rail and slide rail is overall
Reset, after the device integral reset in fixed plate and fixed plate, close the first cylinder.
Because also including electric pushrod and pole, right side rotary type is connected with electric pushrod, electric pushrod in collection bucket
Rotary type is connected with pole, and pole rotary type is connected to right side in collection bucket, so when vollyball is placed in collection bucket, pole
Vollyball can be preferably fixed, when vollyball blocks collection bucket, starts electric pushrod and shortens, drive pole to lower swing, vollyball
Fall, so as to prevent vollyball from blocking collection bucket, start electric pushrod elongation, after pole resets, close electric pushrod.
Because also including block rubber, block rubber is provided with the right side of movable block, so block rubber has certain cushioning effect, is prevented
Only movable block damage vollyball.
Because bracing wire is steel wire rope, in use, can more preferable load-bearing, increase the service life.
Because bottom plate material is Q235 steel, makes device more sturdy and durable, extend the service life of bottom plate.
Because fixed plate thickness is 1.8 centimetres, fixed plate is hardly damaged.
Because cylinder of serving a ball forms 50 ° of angles with fixed plate, institute can perfectly serve a ball at an appropriate angle.
(3) beneficial effect
The utility model, which has reached, to be picked up ball service time consumption is few, training mate quality is high, the convenient effect of training, training not by
Man's activity, sportsman is trained whenever and wherever possible, ultrahigh in efficiency, save many man's activities.
Brief description of the drawings
Fig. 1 is the first main structure diagram of the present utility model.
Fig. 2 is second of main structure diagram of the present utility model.
Fig. 3 is the third main structure diagram of the present utility model.
Mark in accompanying drawing for：1- bracing wires, the connecting seats of 2- first, 3- head rods, the directive wheels of 4- first, the gas of 5- first
Cylinder, 6- bottom plates, the connecting seats of 7- second, 8- right supports, 9- fixed mounts, the springs of 10- first, 11- fixed plates, 12- slide rails, 13- are slided
Block, 14- lifting cylinder bodies, the connecting rods of 15- second, 16- pistons, 17- ellipsoid cams, the directive wheels of 18- second, the directive wheels of 19- the 3rd,
The cylinders of 20- second, 21- movable plates, the pilot holes of 22- first, the connecting rods of 23- the 3rd, 24- second springs, 25- movable blocks, 26- hairs
Ball cylinder, the electromagnet of 27- first, the electromagnet of 28- second, 29- collection buckets, 30- electric pushrods, 31- poles, 32- block rubbers.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment 1
A kind of physical culture vollyball supplemental training device, as Figure 1-3, include bracing wire 1, the first connecting seat 2, first connects
Extension bar 3, the first directive wheel 4, the first cylinder 5, bottom plate 6, the second connecting seat 7, right support 8, fixed mount 9, the first spring 10, fixation
Plate 11, slide rail 12, sliding block 13, lifting cylinder body 14, the second connecting rod 15, piston 16, ellipsoid cam 17, the second directive wheel 18,
Three directive wheels 19, the second cylinder 20, movable plate 21, the 3rd connecting rod 23, second spring 24, movable block 25, service cylinder 26, first
Electromagnet 27, the second electromagnet 28 and collection bucket 29, the top of bottom plate 6 are sequentially provided with the second directive wheel 18, first company from left to right
Joint chair 2, the first directive wheel 4 and right support 8, rotary type is connected with ellipsoid cam 17 on the first connecting seat 2, the left side of right support 8 from
Under it is supreme be sequentially provided with the second connecting seat 7, the spring 10 of fixed mount 9 and first, the left pivot movement formula of the second connecting seat 7 is connected with first
Cylinder 5, the left side of the first cylinder 5 are connected with head rod 3, and head rod 3 is connected with the rotary type of ellipsoid cam 17, fixed mount
9 left sides are fixed with lifting cylinder body 14, and 14 outer top left side of lifting cylinder body is provided with the 3rd directive wheel 19, set inside lifting cylinder body 14
There is piston 16, piston 16 coordinates with lifting cylinder body 14, and the bottom of piston 16 contacts with ellipsoid cam 17, and the top of piston 16 is provided with second
Connecting rod 15, the second connecting rod 15 pass through lifting cylinder body 14, and the top of the second connecting rod 15 is provided with sliding block 13, and the top of sliding block 13 is provided with
Slide rail 12, the right side of slide rail 12 are connected with the first spring 10, and the left side of slide rail 12 is provided with bracing wire 1, bracing wire 1 bypass the 3rd directive wheel 19,
Second directive wheel 18 and the first directive wheel 4, bracing wire 1 are also connected with head rod 3, and the top of slide rail 12 is provided with fixed plate 11, Gu
The top of fixed board 11 is provided with the service cylinder 20 of cylinder 26 and second, and service cylinder 26 is located at the right of the second cylinder 20, and the service left wall of cylinder 26 is set
There is the first pilot hole 22, the interior left side of service cylinder 26 is provided with second spring 24, and the right-hand member of second spring 24 is connected with movable block 25, moves
The left side of motion block 25 is provided with the second electromagnet 28, and the outer top of service cylinder 26 is provided with collection bucket 29, and the right-hand member of the second cylinder 20 is provided with movement
Plate 21, the right side of movable plate 21 are provided with the 3rd connecting rod 23, and the 3rd connecting rod 23 passes through the first pilot hole 22, the right side of the 3rd connecting rod 23
Side is provided with the first electromagnet 27, and magnet two contacts with the second electromagnet 28.
Also include electric pushrod 30 and pole 31, right side rotary type is connected with electric pushrod 30 in collection bucket 29, electronic
The rotary type of push rod 30 is connected with pole 31, and the rotary type of pole 31 is connected to right side in collection bucket 29.
Also include block rubber 32, the right side of movable block 25 is provided with block rubber 32.
Bracing wire 1 is steel wire rope.
The material of bottom plate 6 is Q235 steel.
The thickness of fixed plate 11 is 1.8 centimetres.
Cylinder 26 of serving a ball forms 50 ° of angles with fixed plate 11.
Operation principle：When people need to carry out volleyball training, vollyball is put into collection bucket 29, so as to fall on service cylinder 26
It is interior, then it is powered to the second electromagnet 28 and the first electromagnet 27, is carried after the second electromagnet 28 and the energization of the first electromagnet 27
Opposite magnetic, the second electromagnet 28 and the first electromagnet 27 are attracting, start the second cylinder 20 and shorten, and the second cylinder 20, which drives, to be moved
Dynamic plate 21 is moved to the left, and drives connecting rod to be moved to the left, so as to drive the second electromagnet 28 and the first electromagnet 27 to be moved to the left,
Movable block 25 is driven to be moved to the left, when movable block 25 is moved to the left to correct position, while to the second electromagnet 28 and the first electricity
Magnet 27 powers off, and in the presence of the elastic force of second spring 24, movable block 25 quickly moves right, so as to the row that will be served a ball in cylinder 26
Ball is projected out, and after ball is projected out, is started the second cylinder 20 and is extended, the second cylinder 20 drives movable plate 21 to move right, and drives
3rd connecting rod 23 moves right, and drives the first electromagnet 27 to move right, when the second electromagnet 28 and the first electromagnet 27 connect
When touching, the second cylinder 20 is closed, when people will train high clear, starts the first cylinder 5 and extends, the first cylinder 5 drives first
Connecting rod 3 is moved to the left, and drives ellipsoid cam 17 to swing to the left, so as to be moved up with piston 16, drives the second connecting rod
15 move up, and band movable slider 13 moves up, and drives slide rail 12 to move up, and drives in fixed plate 11 and fixed plate 11
Device integrally moves up, and when head rod 3 moves right, head rod 3 drives slide rail 12 and slide rail by bracing wire 1
Device on 12 is integrally moved to the left, and when the device on slide rail 12 and slide rail 12 is integrally moved to the left to correct position, is closed
The first cylinder 5 is closed, so as to which people can carry out the high clear training of vollyball, at the end of training, starts the first cylinder 5 and shortens, the
One cylinder 5 drives head rod 3 to move right, and drives ellipsoid cam 17 to swing to the right, so as to be moved down with piston 16,
Drive the second connecting rod 15 to move down, band movable slider 13 move down, drive slide rail 12 move down, drive fixed plate 11 with
And the device in fixed plate 11 integrally moves down, the first cylinder 5, which shrinks, loosens bracing wire 1, in the work of the elastic force of the first spring 10
Under, the device integral reset on slide rail 12 and slide rail 12, the device integral reset in fixed plate 11 and fixed plate 11
Afterwards, the first cylinder 5 is closed.
Because also including electric pushrod 30 and pole 31, right side rotary type is connected with electric pushrod 30 in collection bucket 29,
The rotary type of electric pushrod 30 is connected with pole 31, and the rotary type of pole 31 is connected to right side in collection bucket 29, so when vollyball is placed
When in collection bucket 29, pole 31 can preferably fix vollyball, when vollyball blocks collection bucket 29, start electric pushrod 30 and contract
It is short, drive pole 31 to be fallen to lower swing, vollyball, so as to prevent vollyball from blocking collection bucket 29, start electric pushrod 30 and extend, prop up
After bar 31 resets, electric pushrod 30 is closed.
Because also including block rubber 32, the right side of movable block 25 is provided with block rubber 32, so block rubber 32 has certain delay
Punching acts on, and prevents movable block 25 from damaging vollyball.
Because bracing wire 1 is steel wire rope, in use, can more preferable load-bearing, increase the service life.
Because the material of bottom plate 6 is Q235 steel, make device more sturdy and durable, extend the service life of bottom plate 6.
Because the thickness of fixed plate 11 is 1.8 centimetres, fixed plate 11 is hardly damaged.
Because cylinder 26 of serving a ball forms 50 ° of angles with fixed plate 11, institute can perfectly serve a ball at an appropriate angle.
Embodiment described above only expresses preferred embodiment of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the inventive concept of the premise, some deformations can also be made, improves and substitutes, these are all
Belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. a kind of physical culture vollyball supplemental training device, it is characterised in that include bracing wire (1), the first connecting seat (2), first
Connecting rod (3), the first directive wheel (4), the first cylinder (5), bottom plate (6), the second connecting seat (7), right support (8), fixed mount
(9), the first spring (10), fixed plate (11), slide rail (12), sliding block (13), lifting cylinder body (14), the second connecting rod (15), work
Fill in (16), ellipsoid cam (17), the second directive wheel (18), the 3rd directive wheel (19), the second cylinder (20), movable plate (21), the
Three connecting rods (23), second spring (24), movable block (25), service cylinder (26), the first electromagnet (27), the second electromagnet (28)
With collection bucket (29), bottom plate (6) top is sequentially provided with the second directive wheel (18), the first connecting seat (2), the first guiding from left to right
Take turns (4) and right support (8), rotary type is connected with ellipsoid cam (17) on the first connecting seat (2), right support (8) left side from it is lower to
On be sequentially provided with the second connecting seat (7), fixed mount (9) and the first spring (10), the second connecting seat (7) left pivot movement formula is connected with
First cylinder (5), the first cylinder (5) left side are connected with head rod (3), and head rod (3) turns with ellipsoid cam (17)
Dynamic formula is connected, and lifting cylinder body (14) is fixed with the left of fixed mount (9), and lifting cylinder body (14) outer top left side is provided with the 3rd and is oriented to
Take turns (19), piston (16) be provided with inside lifting cylinder body (14), piston (16) coordinates with lifting cylinder body (14), piston (16) bottom and
Ellipsoid cam (17) contacts, and is provided with the second connecting rod (15) at the top of piston (16), the second connecting rod (15) passes through lifting cylinder body
(14), be provided with sliding block (13) at the top of the second connecting rod (15), be provided with slide rail (12) at the top of sliding block (13), slide rail (12) right side and the
One spring (10) connects, and bracing wire (1) is provided with the left of slide rail (12), bracing wire (1) is around the 3rd directive wheel (19), the second directive wheel
(18) also it is connected with the first directive wheel (4), bracing wire (1) with head rod (3), fixed plate (11) is provided with the top of slide rail (12),
Service cylinder (26) and the second cylinder (20) are provided with the top of fixed plate (11), service cylinder (26) is located at the second cylinder (20) right, sends out
Ball cylinder (26) left wall is provided with the first pilot hole (22), and left side is provided with second spring (24), second spring in service cylinder (26)
(24) right-hand member is connected with movable block (25), the second electromagnet (28) is provided with the left of movable block (25), top is set service cylinder (26) outside
There is collection bucket (29), the second cylinder (20) right-hand member is provided with movable plate (21), the 3rd connecting rod (23) is provided with the right side of movable plate (21),
3rd connecting rod (23) passes through the first pilot hole (22), and the first electromagnet (27), magnet two are provided with the right side of the 3rd connecting rod (23)
Contacted with the second electromagnet (28).
2. a kind of physical culture according to claim 1 vollyball supplemental training device, it is characterised in that also include electronic push away
Bar (30) and pole (31), the interior right side rotary type of collection bucket (29) are connected with electric pushrod (30), electric pushrod (30) rotary type
Pole (31) is connected with, pole (31) rotary type is connected to right side in collection bucket (29).
3. a kind of physical culture according to claim 1 vollyball supplemental training device, it is characterised in that also include block rubber
(32), it is provided with block rubber (32) on the right side of movable block (25).
4. a kind of physical culture according to claim 1 vollyball supplemental training device, it is characterised in that bracing wire (1) is steel wire
Rope.
5. a kind of physical culture according to claim 1 vollyball supplemental training device, it is characterised in that bottom plate (6) material is
Q235 steel.
A kind of 6. physical culture according to claim 1 vollyball supplemental training device, it is characterised in that fixed plate (11) thickness
For 1.8 centimetres.
7. a kind of physical culture according to claim 1 vollyball supplemental training device, it is characterised in that service cylinder (26) is with consolidating
Fixed board (11) forms 50 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248478.7U CN206823112U (en) | 2016-11-16 | 2016-11-16 | A kind of physical culture vollyball supplemental training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248478.7U CN206823112U (en) | 2016-11-16 | 2016-11-16 | A kind of physical culture vollyball supplemental training device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206823112U true CN206823112U (en) | 2018-01-02 |
Family
ID=60779875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621248478.7U Expired - Fee Related CN206823112U (en) | 2016-11-16 | 2016-11-16 | A kind of physical culture vollyball supplemental training device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206823112U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108553865A (en) * | 2018-06-01 | 2018-09-21 | 永春康馨专利技术服务有限公司 | One kind of multiple hybrid service robots of power |
| CN109200557A (en) * | 2018-11-22 | 2019-01-15 | 沈阳体育学院 | A kind of goalkeeper is trained to flutter ball training device with multi-angle |
| CN110327601A (en) * | 2019-05-20 | 2019-10-15 | 浙江工业大学 | A kind of ball recyclable device based on cam mechanism |
| CN111840953A (en) * | 2020-07-21 | 2020-10-30 | 许昌学院 | Tennis training device |
| CN114522399A (en) * | 2022-02-26 | 2022-05-24 | 唐山师范学院 | Volleyball smash training device capable of being exercised by single person |
| CN110327601B (en) * | 2019-05-20 | 2024-05-03 | 浙江工业大学 | Ball recovery unit based on cam mechanism |
-
2016
- 2016-11-16 CN CN201621248478.7U patent/CN206823112U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108553865A (en) * | 2018-06-01 | 2018-09-21 | 永春康馨专利技术服务有限公司 | One kind of multiple hybrid service robots of power |
| CN109200557A (en) * | 2018-11-22 | 2019-01-15 | 沈阳体育学院 | A kind of goalkeeper is trained to flutter ball training device with multi-angle |
| CN110327601A (en) * | 2019-05-20 | 2019-10-15 | 浙江工业大学 | A kind of ball recyclable device based on cam mechanism |
| CN110327601B (en) * | 2019-05-20 | 2024-05-03 | 浙江工业大学 | Ball recovery unit based on cam mechanism |
| CN111840953A (en) * | 2020-07-21 | 2020-10-30 | 许昌学院 | Tennis training device |
| CN114522399A (en) * | 2022-02-26 | 2022-05-24 | 唐山师范学院 | Volleyball smash training device capable of being exercised by single person |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20181116 |