CN209118555U - A kind of preschool education interaction device - Google Patents
A kind of preschool education interaction device Download PDFInfo
- Publication number
- CN209118555U CN209118555U CN201821056066.2U CN201821056066U CN209118555U CN 209118555 U CN209118555 U CN 209118555U CN 201821056066 U CN201821056066 U CN 201821056066U CN 209118555 U CN209118555 U CN 209118555U
- Authority
- CN
- China
- Prior art keywords
- spring
- block
- bottom plate
- handrail
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Toys (AREA)
Abstract
The utility model relates to a kind of interaction device more particularly to a kind of preschool education interaction devices.Technical problem are as follows: provide a kind of with interest, the preschool education interaction device for being not easy to be weary of.Implementer's case of the utility model are as follows: a kind of preschool education interaction device includes bottom plate etc.；Bottom plate top is equipped with interactive device, seat there are two connections on interactive device, is respectively connected with handrail on two seats, fixed device is equipped on handrail.The utility model, which passes through fixed device, to prevent child from falling down from seat, it can so make two childs that can carry out game interaction by interactive device and play, so as to keep the relationship of two childs more intimate, two childs can be made slowly to rotate therewith by rotating device, to which interest can be improved, play two childs more happy, the water in pedestal is flowed out by outlet pipe, makes the weight saving of the utility model.
Description
Technical field
The utility model relates to a kind of interaction device more particularly to a kind of preschool education interaction devices.
Background technique
Preschool education is also divided into broad sense and narrow sense, in a broad sense, it is all can influence child's body growth and cognition,
The purposive activity of emotion, personality etc. development；In order to make childs happy happy can spend every day, Lao Shihui
When allowing childs to play together, but childs being allowed to play together, childs do not know what is played, to cause to lack entertaining
Property, and play for a long time to the same article, children are easy to be weary of, but when having new toy, children can seize by force it
It accounts for, the so more difficult hit it off with made between children.
Utility model content
Lack interest to overcome childs to play together, and is easy the shortcomings that being weary of, technical problem are as follows: provide one
Kind has interest, is not easy the preschool education interaction device being weary of.
Implementer's case of the utility model are as follows: a kind of preschool education interaction device includes bottom plate, seat, helps
Hand, fixed device and interactive device, bottom plate top are equipped with interactive device, and there are two seat, two seats for connection on interactive device
It is respectively connected with handrail on chair, fixed device is installed on handrail.
As a further preferred solution, fixed device includes curved rod, link block and screw rod, on subsequent handrail
It is hingedly connected with curved rod, curved rod front end is connected with link block, screw hole is provided on the handrail of link block and front, in screw hole
It is movable to be equipped with screw rod.
As a further preferred solution, interactive device includes N-shaped slide bar, sliding sleeve, the first spring, block and second
Spring is connected with N-shaped slide bar at the top of bottom plate, and slidingtype is set there are two sliding sleeve on N-shaped slide bar, at the top of two sliding sleeves respectively with two
Seat bottom connection, N-shaped slide bar middle part are connected with block, and block is located between two sliding sleeves, and the first spring is cased on N-shaped slide bar
And second spring, the sliding sleeve right side connection of the first spring left end and the left side, the first spring right end and block left side are connect, the second bullet
It connects on the left of spring right end and the sliding sleeve on the right, is connect on the right side of second spring left end and block.
It as a further preferred solution, further include having rotating device, bottom base plate is equipped with rotating device, rotating dress
Setting includes endless glide, sliding block, connecting rod, motor, shaft and pedestal, and bottom plate is arranged right below pedestal, and pedestal is hollow shape,
Base top is equipped with endless glide and motor, and motor is located in endless glide, and slidingtype is set there are two sliding block in endless glide,
Two slider tops are respectively connected with connecting rod, and two connecting rod tops connect with bottom base plate, are connected on the output shaft of motor
It is connected among shaft, shaft top and bottom base plate.
It as a further preferred solution, further include having water inlet pipe, the first valve, outlet pipe and the second valve, pedestal
Left upper portion is connected with water inlet pipe, is equipped with the first valve on water inlet pipe, and base right side lower part is connected with outlet pipe, on outlet pipe
Second valve is installed.
Two childs are sitting in respectively on two seats, and then controlling fixed device fall down two childs will not from seat
Come, two childs can be carried out game interaction and be played by interactive device, so as to keep the relationship of two childs more intimate.
Because fixed device includes curved rod, link block and screw rod, curved rod, arc are hingedly connected on subsequent handrail
Shape bar front end is connected with link block, is provided with screw hole on the handrail of link block and front, movable in screw hole to be equipped with screw rod.Initially
When, screw rod is in loosening state.When child sits on the seat, operator tightens screw rod, so as to make child will not be from seat
It falls down on chair.
Because interactive device includes N-shaped slide bar, sliding sleeve, the first spring, block and second spring, it is connected at the top of bottom plate
N-shaped slide bar, slidingtype is set there are two sliding sleeve on N-shaped slide bar, connect respectively with two seat bottoms at the top of two sliding sleeves, N-shaped cunning
Block is connected in the middle part of bar, block is located between two sliding sleeves, and the first spring and second spring, the first bullet are cased on N-shaped slide bar
It is connect on the left of connection on the right side of the sliding sleeve on spring left end and the left side, the first spring right end and block, the cunning of second spring right end and the right
It is connect on the right side of the connection of set left side, second spring left end and block.Two childs can kick block with foot, interacted and played, from
And two childs can be made to carry out game interaction.
Because further including having rotating device, bottom base plate is equipped with rotating device, and rotating device includes endless glide, cunning
Block, connecting rod, motor, shaft and pedestal, bottom plate are arranged right below pedestal, and pedestal is hollow shape, and base top is equipped with annular
Sliding rail and motor, motor are located in endless glide, and slidingtype is set there are two sliding block in endless glide, and two slider tops are all connected with
There is connecting rod, two connecting rod tops are connect with bottom base plate, and shaft, shaft top and bottom plate are connected on the output shaft of motor
Connection among bottom.Operator starts motor and slowly rotates, and shaft is driven slowly to rotate, so that bottom plate is driven slowly to rotate,
And then N-shaped slide bar is driven slowly to rotate, two on seat child slowly rotates therewith, so that interest can be improved, makes two
Child plays more happy.When not needing using the utility model, motor is closed.
Because further including having water inlet pipe, the first valve, outlet pipe and the second valve, chassis left side top is connected with into water
It manages, the first valve is installed on water inlet pipe, base right side lower part is connected with outlet pipe, the second valve is equipped on outlet pipe.Behaviour
Make personnel water inlet pipe is connected on tap, then opens tap and the first valve, water source flow into pedestal by water inlet pipe
It is interior.When there is enough water in pedestal, tap and the first valve are closed, so as to consolidate the utility model by the weight of water
It is fixed.When needing mobile the utility model, operator opens the second valve, and the water in pedestal is flowed out by outlet pipe, makes this
The weight saving of utility model.All after outflow, the second valve is closed, i.e., removable the utility model.
Compared with prior art, the utility model has the advantage that the utility model passes through fixed device and can prevent children
Youngster falls down from seat, can so make two childs that can carry out game interaction by interactive device and play, so as to
Keep the relationship of two childs more intimate, two childs can be made slowly to rotate therewith by rotating device, so that entertaining can be improved
Property, play two childs more happy, the water in pedestal is flowed out by outlet pipe, makes the weight saving of the utility model.
Detailed description of the invention
Fig. 1 is the first schematic view of the front view of the utility model.
Fig. 2 is the left view structural representation of the fixed device of the utility model.
Fig. 3 is second of schematic view of the front view of the utility model.
Fig. 4 is the third schematic view of the front view of the utility model.
Drawing reference numeral: 1. bottom plates, 2. seats, 3. handrails, 4. second valves, 5. fixed devices, 51. curved rods, 52. connections
Block, 53. screw holes, 54. screw rods, 6. interactive devices, 61.n type slide bar, 62. sliding sleeves, 63. first springs, 64. blocks, 65. second
Spring, 7. rotating devices, 71. endless glides, 72. sliding blocks, 73. connecting rods, 74. motors, 75. shafts, 76. pedestals, 8. water inlets
Pipe, 9. first valves, 10. outlet pipes.
Specific embodiment
The technical solution of the utility model is described further with reference to the accompanying drawing.
Embodiment 1
A kind of preschool education interaction device includes as shown in Figs 1-4 bottom plate 1, seat 2, handrail 3, fixed device 5
With interactive device 6, interactive device 6 is installed at the top of bottom plate 1, connection is there are two seat 2 on interactive device 6, on two seats 2
It is connected with handrail 3, fixed device 5 is installed on handrail 3.
Embodiment 2
A kind of preschool education interaction device includes as shown in Figs 1-4 bottom plate 1, seat 2, handrail 3, fixed device 5
With interactive device 6, interactive device 6 is installed at the top of bottom plate 1, connection is there are two seat 2 on interactive device 6, on two seats 2
It is connected with handrail 3, fixed device 5 is installed on handrail 3.
Fixed device 5 includes curved rod 51, link block 52 and screw rod 54, is hingedly connected with arc on subsequent handrail 3
Bar 51,51 front end of curved rod are connected with link block 52, are provided with screw hole 53 on the handrail 3 of link block 52 and front, in screw hole 53
It is movable to be equipped with screw rod 54.
Embodiment 3
A kind of preschool education interaction device includes as shown in Figs 1-4 bottom plate 1, seat 2, handrail 3, fixed device 5
With interactive device 6, interactive device 6 is installed at the top of bottom plate 1, connection is there are two seat 2 on interactive device 6, on two seats 2
It is connected with handrail 3, fixed device 5 is installed on handrail 3.
Fixed device 5 includes curved rod 51, link block 52 and screw rod 54, is hingedly connected with arc on subsequent handrail 3
Bar 51,51 front end of curved rod are connected with link block 52, are provided with screw hole 53 on the handrail 3 of link block 52 and front, in screw hole 53
It is movable to be equipped with screw rod 54.
Interactive device 6 includes N-shaped slide bar 61, sliding sleeve 62, the first spring 63, block 64 and second spring 65, and bottom plate 1 pushes up
Portion is connected with N-shaped slide bar 61, and slidingtype is set there are two sliding sleeve 62 on N-shaped slide bar 61, two 62 tops of sliding sleeves respectively with two seats
2 bottom of chair connects, and block 64 is connected in the middle part of N-shaped slide bar 61, and block 64 is located between two sliding sleeves 62, covers on N-shaped slide bar 61
There are the first spring 63 and a second spring 65, is connected on the right side of the sliding sleeve 62 on 63 left end of the first spring and the left side, 63 right end of the first spring
It connects on the left of block 64, is connected on the left of the sliding sleeve 62 on 65 right end of second spring and the right, 65 left end of second spring and block 64
Right side connection.
Embodiment 4
A kind of preschool education interaction device includes as shown in Figs 1-4 bottom plate 1, seat 2, handrail 3, fixed device 5
With interactive device 6, interactive device 6 is installed at the top of bottom plate 1, connection is there are two seat 2 on interactive device 6, on two seats 2
It is connected with handrail 3, fixed device 5 is installed on handrail 3.
Fixed device 5 includes curved rod 51, link block 52 and screw rod 54, is hingedly connected with arc on subsequent handrail 3
Bar 51,51 front end of curved rod are connected with link block 52, are provided with screw hole 53 on the handrail 3 of link block 52 and front, in screw hole 53
It is movable to be equipped with screw rod 54.
Interactive device 6 includes N-shaped slide bar 61, sliding sleeve 62, the first spring 63, block 64 and second spring 65, and bottom plate 1 pushes up
Portion is connected with N-shaped slide bar 61, and slidingtype is set there are two sliding sleeve 62 on N-shaped slide bar 61, two 62 tops of sliding sleeves respectively with two seats
2 bottom of chair connects, and block 64 is connected in the middle part of N-shaped slide bar 61, and block 64 is located between two sliding sleeves 62, covers on N-shaped slide bar 61
There are the first spring 63 and a second spring 65, is connected on the right side of the sliding sleeve 62 on 63 left end of the first spring and the left side, 63 right end of the first spring
It connects on the left of block 64, is connected on the left of the sliding sleeve 62 on 65 right end of second spring and the right, 65 left end of second spring and block 64
Right side connection.
Further include having rotating device 7,1 bottom of bottom plate is equipped with rotating device 7, rotating device 7 include endless glide 71,
Sliding block 72, connecting rod 73, motor 74, shaft 75 and pedestal 76, bottom plate 1 are arranged right below pedestal 76, and pedestal 76 is hollow shape, bottom
76 top of seat is equipped with endless glide 71 and motor 74, and motor 74 is located in endless glide 71, and slidingtype is set in endless glide 71
There are two sliding block 72, it is respectively connected with connecting rod 73 at the top of two sliding blocks 72, two 73 tops of connecting rod are connect with 1 bottom of bottom plate,
It is connected with shaft 75 on the output shaft of motor 74, is connected among 75 top of shaft and 1 bottom of bottom plate.
Embodiment 5
A kind of preschool education interaction device includes as shown in Figs 1-4 bottom plate 1, seat 2, handrail 3, fixed device 5
With interactive device 6, interactive device 6 is installed at the top of bottom plate 1, connection is there are two seat 2 on interactive device 6, on two seats 2
It is connected with handrail 3, fixed device 5 is installed on handrail 3.
Fixed device 5 includes curved rod 51, link block 52 and screw rod 54, is hingedly connected with arc on subsequent handrail 3
Bar 51,51 front end of curved rod are connected with link block 52, are provided with screw hole 53 on the handrail 3 of link block 52 and front, in screw hole 53
It is movable to be equipped with screw rod 54.
Interactive device 6 includes N-shaped slide bar 61, sliding sleeve 62, the first spring 63, block 64 and second spring 65, and bottom plate 1 pushes up
Portion is connected with N-shaped slide bar 61, and slidingtype is set there are two sliding sleeve 62 on N-shaped slide bar 61, two 62 tops of sliding sleeves respectively with two seats
2 bottom of chair connects, and block 64 is connected in the middle part of N-shaped slide bar 61, and block 64 is located between two sliding sleeves 62, covers on N-shaped slide bar 61
There are the first spring 63 and a second spring 65, is connected on the right side of the sliding sleeve 62 on 63 left end of the first spring and the left side, 63 right end of the first spring
It connects on the left of block 64, is connected on the left of the sliding sleeve 62 on 65 right end of second spring and the right, 65 left end of second spring and block 64
Right side connection.
Further include having rotating device 7,1 bottom of bottom plate is equipped with rotating device 7, rotating device 7 include endless glide 71,
Sliding block 72, connecting rod 73, motor 74, shaft 75 and pedestal 76, bottom plate 1 are arranged right below pedestal 76, and pedestal 76 is hollow shape, bottom
76 top of seat is equipped with endless glide 71 and motor 74, and motor 74 is located in endless glide 71, and slidingtype is set in endless glide 71
There are two sliding block 72, it is respectively connected with connecting rod 73 at the top of two sliding blocks 72, two 73 tops of connecting rod are connect with 1 bottom of bottom plate,
It is connected with shaft 75 on the output shaft of motor 74, is connected among 75 top of shaft and 1 bottom of bottom plate.
Further include having water inlet pipe 8, the first valve 9, outlet pipe 10 and the second valve 4,76 left upper portion of pedestal be connected with into
Water pipe 8 is equipped with the first valve 9 on water inlet pipe 8, and 76 lower right side of pedestal is connected with outlet pipe 10, is equipped on outlet pipe 10
Second valve 4.
Two childs are sitting in respectively on two seats 2, and then controlling fixed device 5 makes two childs will not be from seat 2
It falls down, two childs can be carried out game interaction and be played by interactive device 6, so as to make the relationship of two childs more
Intimately.
Because fixed device 5 includes curved rod 51, link block 52 and screw rod 54, it is hingedly connected on subsequent handrail 3
Curved rod 51,51 front end of curved rod are connected with link block 52, are provided with screw hole 53, screw hole on the handrail 3 of link block 52 and front
It is movable in 53 to be equipped with screw rod 54.When initial, screw rod 54 is in loosening state.When child is sitting on seat 2, operator is twisted
Tight screw rod 54, so as to make child not fall down from seat 2.
Because interactive device 6 includes N-shaped slide bar 61, sliding sleeve 62, the first spring 63, block 64 and second spring 65, bottom
N-shaped slide bar 61 is connected at the top of plate 1, slidingtype is set there are two sliding sleeve 62 on N-shaped slide bar 61, and two 62 tops of sliding sleeves are respectively with two
A 2 bottom of seat connects, and block 64 is connected in the middle part of N-shaped slide bar 61, and block 64 is located between two sliding sleeves 62, N-shaped slide bar 61
On be cased with the first spring 63 and second spring 65, connected on the right side of the sliding sleeve 62 on 63 left end of the first spring and the left side, the first spring 63
It connects on the left of right end and block 64, is connected on the left of the sliding sleeve 62 on 65 right end of second spring and the right, 65 left end of second spring and gear
It is connected on the right side of block 64.Two childs can kick block 64 with foot, interacted and played, mutual so as to make two childs carry out game
It is dynamic.
Because further including having rotating device 7,1 bottom of bottom plate is equipped with rotating device 7, and rotating device 7 includes annular cunning
Rail 71, sliding block 72, connecting rod 73, motor 74, shaft 75 and pedestal 76, bottom plate 1 are arranged right below pedestal 76, and pedestal 76 is hollow
Shape is equipped with endless glide 71 and motor 74 at the top of pedestal 76, and motor 74 is located in endless glide 71, slides in endless glide 71
Formula is set there are two sliding block 72, and connecting rod 73 is respectively connected at the top of two sliding blocks 72, and two 73 tops of connecting rod and 1 bottom of bottom plate connect
It connects, shaft 75 is connected on the output shaft of motor 74, is connected among 75 top of shaft and 1 bottom of bottom plate.Operator starts electricity
Machine 74 slowly rotates, and shaft 75 is driven slowly to rotate, so that bottom plate 1 be driven slowly to rotate, and then N-shaped slide bar 61 is driven slowly to turn
Dynamic, two childs on seat 2 slowly rotate therewith, so that interest can be improved, play two childs more happy.It is not required to
When using the utility model, motor 74 is closed.
Because further including having water inlet pipe 8, the first valve 9, outlet pipe 10 and the second valve 4, the connection of 76 left upper portion of pedestal
There is water inlet pipe 8, the first valve 9 is installed on water inlet pipe 8,76 lower right side of pedestal is connected with outlet pipe 10, pacifies on outlet pipe 10
Equipped with the second valve 4.Water inlet pipe 8 is connected on tap by operator, then opens tap and the first valve 9, water source
It is flowed into pedestal 76 by water inlet pipe 8.When having enough water in pedestal 76, tap and the first valve 9 are closed, so as to logical
The weight for crossing water fixes the utility model.When needing mobile the utility model, operator opens the second valve 4, pedestal
Water in 76 is flowed out by outlet pipe 10, makes the weight saving of the utility model.All after outflow, the second valve 4 is closed
Mobile the utility model.
Although the utility model is described in detail referring to above example, by the disclosure for those skilled in the art
Member is not it is readily apparent that and the case where departing from the principles of the present invention and scope that the claim limits
Under, the utility model can be made a variety of changes or be modified.Therefore, the detailed description of the embodiment of the present disclosure is only used to explain, and
It is not intended to limit the utility model, but is defined by the subject-matter of the claims the range of protection.
Claims (5)
1. a kind of preschool education interaction device, which is characterized in that include bottom plate, seat, handrail, fixed device and interaction dress
It sets, bottom plate top is equipped with interactive device, seat there are two connections on interactive device, is respectively connected with handrail on two seats, helps
Fixed device is installed on hand.
2. a kind of preschool education interaction device as described in claim 1, which is characterized in that fixed device includes arc
Bar, link block and screw rod, are hingedly connected with curved rod on subsequent handrail, and curved rod front end is connected with link block, link block and
It is provided with screw hole on the handrail of front, it is movable in screw hole to be equipped with screw rod.
3. a kind of preschool education interaction device as claimed in claim 2, which is characterized in that interactive device includes that N-shaped is sliding
Bar, sliding sleeve, the first spring, block and second spring are connected with N-shaped slide bar at the top of bottom plate, there are two slidingtype is set on N-shaped slide bar
Sliding sleeve, two sliding sleeves tops are connect with two seat bottoms respectively, are connected with block in the middle part of N-shaped slide bar, block is located at two cunnings
Between set, it is cased with the first spring and second spring on N-shaped slide bar, is connected on the right side of the sliding sleeve on the first spring left end and the left side, first
It is connect on the left of spring right end and block, connection on the left of the sliding sleeve on second spring right end and the right, second spring left end and block are right
Side connection.
4. a kind of preschool education interaction device as claimed in claim 3, which is characterized in that it further include having rotating device, bottom
Board bottom portion is equipped with rotating device, and rotating device includes endless glide, sliding block, connecting rod, motor, shaft and pedestal, bottom plate
It is arranged right below pedestal, pedestal is hollow shape, and base top is equipped with endless glide and motor, and motor is located in endless glide,
Slidingtype is set there are two sliding block in endless glide, and two slider tops are respectively connected with connecting rod, two connecting rod tops and bottom plate
Bottom connects, and shaft is connected on the output shaft of motor, is connected among shaft top and bottom base plate.
5. a kind of preschool education interaction device as claimed in claim 4, which is characterized in that further include having water inlet pipe, first
Valve, outlet pipe and the second valve, chassis left side top are connected with water inlet pipe, and the first valve is equipped on water inlet pipe, and pedestal is right
Side lower part is connected with outlet pipe, and the second valve is equipped on outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821056066.2U CN209118555U (en) | 2018-07-05 | 2018-07-05 | A kind of preschool education interaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821056066.2U CN209118555U (en) | 2018-07-05 | 2018-07-05 | A kind of preschool education interaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209118555U true CN209118555U (en) | 2019-07-16 |
Family
ID=67195944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821056066.2U Expired - Fee Related CN209118555U (en) | 2018-07-05 | 2018-07-05 | A kind of preschool education interaction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209118555U (en) |
-
2018
- 2018-07-05 CN CN201821056066.2U patent/CN209118555U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106511034B (en) | A kind of suspension type stretching body building machine device people | |
| CN204016750U (en) | Children special-purpose dental multipurpose therapy unit | |
| CN209118555U (en) | A kind of preschool education interaction device | |
| CN107713527A (en) | A kind of bassinet device | |
| CN204050797U (en) | A kind of health and fitness facilities gathered multi-function in integral whole | |
| CN201536854U (en) | Children chair | |
| CN201630776U (en) | Multifunctional chair for children | |
| CN205948359U (en) | Single -person teeterboard | |
| CN202151252U (en) | Children educational splicing table or chair | |
| CN205913167U (en) | Leisure knead sofa | |
| US631889A (en) | Baby-walker. | |
| CN208405986U (en) | A kind of multi-functional wushu sand hill | |
| CN101618263A (en) | Stationary bike for children | |
| CN205814041U (en) | A kind of family sofa | |
| CN219438521U (en) | Entertainment type educational chair | |
| CN208319978U (en) | A kind of children for recreation ground ride amusement facility | |
| CN205460945U (en) | Many people of rotation type park seesaw | |
| CN108837469A (en) | A kind of mechanical automatic hair feather ball device | |
| CN214896992U (en) | Training device for primary school mental health education | |
| CN204071246U (en) | One loosens rocking chair | |
| CN108743279A (en) | A kind of medical message bathtub | |
| CN202237054U (en) | Waist twisting apparatus | |
| CN214485615U (en) | Walking driving mechanism and quadruped riding toy made of same | |
| CN205516438U (en) | Seesaw of many people amusement | |
| CN208610741U (en) | A kind of toilet auxiliary is stood up device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190716 Termination date: 20210705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |