CN106894743B - A kind of flood prevention doors - Google Patents
A kind of flood prevention doors Download PDFInfo
- Publication number
- CN106894743B CN106894743B CN201710152376.8A CN201710152376A CN106894743B CN 106894743 B CN106894743 B CN 106894743B CN 201710152376 A CN201710152376 A CN 201710152376A CN 106894743 B CN106894743 B CN 106894743B
- Authority
- CN
- China
- Prior art keywords
- baffle
- storage bin
- column
- middle pillar
- flood prevention
- 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
- 230000002265 prevention Effects 0.000 title claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 72
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003381 stabilizer Substances 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 13
- 239000011120 plywood Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B2009/007—Flood panels
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Special Wing (AREA)
- Building Environments (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
A kind of flood prevention doors, including baffle, middle pillar, lateral brace, quarter line pillaring and bottom steel plate, quarter line pillaring is arranged in wall, bottom steel plate is arranged on the ground, baffle one end is arranged in quarter line pillaring, and the other end is arranged in middle pillar, and the position that the baffle on both sides is connected is arranged in middle pillar, the intermediate position of baffle is arranged in lateral brace, and the flood prevention doors further include flood prevention doors storage bin.Flood control door of the invention is simple, good water-proof effect, and it is provided with the storage bin of storage flood prevention doors, so that flood prevention doors can be good at saving when storing, and the storage bin of the flood prevention doors of underground garage is arranged in garage entrance, it can be taken out immediately when use, save the time, greatly improve working efficiency；It is provided with side plate in middle pillar and quarter line pillaring, facilitates hold-down bolt and compresses baffle, further prevent leak.
Description
Technical field
The present invention relates to a kind of flood prevention doors.
Background technique
Recently as the variation of global climate, various natural calamities take place frequently, and bring about great losses to people's lives and properties,
Such as typhoon, flood, to prevent or lowering harm of the flood damage to the mankind, various flood gates are applied and are given birth to.
Anti-flood water blocking plate is suitable for industry, traffic, water conservancy, tunnel, subway and hypsography low-lying residential area field, in flood
Phase interim key protection point facility and property be not by water damage.Such as in drainage pumping plant, drainage pumping plant will not only complete flood control row
Water conservancy project is made, while also to protect itself flood control requirement, for example, basement, garage, subway, warehouse, pump house, high switchgear house etc. not by
Water logging, to guarantee that work of flood prevention is gone on smoothly.However existing anti-flood water blocking plate because structure is complicated manufacturing cost height or its
Structural strength is inadequate or waterproof performance is insufficient and there are certain hidden danger.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of flood prevention doors.
The technical solution adopted by the present invention are as follows:
A kind of flood prevention doors, including baffle, middle pillar, lateral brace, quarter line pillaring and bottom steel plate, quarter line pillaring are arranged in wall
Interior, bottom steel plate is arranged on the ground, and baffle one end is arranged in quarter line pillaring, and the other end is arranged in middle pillar, and middle pillar is set
The position that the baffle on both sides is connected is set, the intermediate position of baffle is arranged in lateral brace, and the flood prevention doors further include flood control
Door storage bin, the quarter line pillaring include quarter line pillaring column, at least two block baffles of setting mounted on top among quarter line pillaring column,
Water proof rubber pad is arranged in the side of baffle, and side plate is arranged in the other side, and a few type gaskets, a few type gaskets tops are provided at the top of baffle
Quarter line pillaring cover board is set, and top fastening bolt passes through quarter line pillaring cover board and resists a few type gaskets and baffle, and hold-down bolt passes through quarter line pillaring column
Compress side plate；The flood prevention doors storage bin includes tool box, storage bin one and storage bin two, tool box and storage bin two-phase
Connection, baffle one end are arranged in storage bin two, and the other end is arranged in storage bin one.
The lateral brace include lateral brace column, the lateral brace cover board that lateral brace column top is set and with it is collateral
Fluted, the baffle top of the groove and top layer is arranged far from one end of stabilizer blade in the stabilizer blade that column cover board is connected, lateral brace cover board
The protrusion in portion matches.
The middle pillar includes middle pillar column, at least two block baffles of setting mounted on top among middle pillar column,
Water proof rubber pad is arranged in the side of baffle, and side plate is arranged in the other side, and a few type gaskets, a few type gaskets tops are provided at the top of baffle
Pillar cover board in setting, top fastening bolt pass through middle pillar cover board and resist a few type gaskets and baffle, and middle pillar is close to the side of side plate
It is provided with stabilizer blade, it is I-shaped shape at the top of middle pillar column, middle pillar is vertical that hold-down bolt, which passes through middle pillar column and compresses side plate,
Column bottom is provided with pedestal.
Two symmetrical fixed plates are provided on the pedestal, fixed plate is correspondingly arranged at the two of middle pillar column
Side.
The baffle bottom is provided with middle part rubber pad or bottom rubber pad.
The storage bin one and storage bin two be it is hollow, storage bin one towards storage bin two one side be open, in addition
Three faces are bolted on metope, and the bottom surface of storage bin two and the one side close to tool box are arranged by bolt in metope
On, the one side of storage bin two towards storage bin one is open, and two top surface of storage bin is movably set with lid.
The invention has the benefit that flood control door of the invention is simple, and good water-proof effect, and it is anti-to be provided with storage
The storage bin of flood door, so that flood prevention doors can be good at saving when storing, and the storage bin setting of the flood prevention doors of underground garage
It can be taken out immediately in garage entrance, use, save the time, greatly improve working efficiency；In middle pillar and quarter line pillaring
It is provided with side plate, facilitates hold-down bolt and compresses baffle, further prevent leak.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of quarter line pillaring of the present invention.
Fig. 3 is the structural schematic diagram of lateral brace of the present invention.
Fig. 4 is the structural schematic diagram of pillar in the present invention.
Fig. 5 is the top view of lateral brace of the present invention.
Fig. 6 is the top view of pillar in the present invention.
Fig. 7 is the structural schematic diagram of pedestal of the present invention.
Fig. 8 is the structural schematic diagram one of baffle of the present invention.
Fig. 9 is the structural schematic diagram two of baffle of the present invention.
Figure 10 is the structural schematic diagram one of storage bin of the present invention.
Figure 11 is the usage state diagram of storage bin of the present invention.
Figure 12 is the structural schematic diagram of inventive article case.
Figure 13 is the structural schematic diagram one of storage bin two of the present invention.
Figure 14 is the structural schematic diagram two of storage bin two of the present invention.
Figure 15 is the structural schematic diagram of storage bin one of the present invention.
In figure, 1, baffle, 2, central post, 3, heel post, 4, quarter line pillaring, 5, quarter line pillaring cover board, 6, top fastening bolt, 7, quarter line pillaring
Column, 8, hold-down bolt, 9, side plate, 10, water proof rubber pad, 11, a few type gaskets, 12, lateral brace cover board, 13, stabilizer blade, 14,
Lateral brace column, 15, middle pillar cover board, 16, middle pillar column, 17, pedestal, 18, bottom rubber pad, 19, middle part rubber pad,
20, fixed plate, 21, tool box, 22, storage bin two, 23, storage bin one, 24, lid, 25, lock, 26, boss.
Specific embodiment
As shown in Fig. 1~Figure 15, a kind of flood prevention doors, including baffle 1, middle pillar 2, lateral brace 3, quarter line pillaring 4 and bottom steel
Plate, quarter line pillaring 4 are arranged in wall, and bottom steel plate is arranged on the ground, and 1 one end of baffle is arranged in quarter line pillaring 4, and the other end is set
It sets in middle pillar 2, the position that the baffle 1 on both sides is connected is arranged in middle pillar 2, and the middle part of baffle 1 is arranged in lateral brace 3
Position, the flood prevention doors further include flood prevention doors storage bin, and the quarter line pillaring 4 includes quarter line pillaring column 7, in quarter line pillaring column 7
Between at least two block baffles 1 of mounted on top are set, water proof rubber pad 10 is arranged in the side of baffle 1, and side plate 9 is arranged in the other side,
It is provided with a few type gaskets 11 at the top of baffle 1, quarter line pillaring cover board 5 is set above a few type gaskets 11, top fastening bolt 6 passes through quarter line pillaring cover board
5 resist a few type gaskets 11 and baffle 1, and hold-down bolt 8 passes through quarter line pillaring column 7 and compresses side plate 9；The flood prevention doors storage bin
Including tool box 21, storage bin 1 and storage bin 2 22, tool box 21 is connected with storage bin 2 22, the setting of 1 one end of baffle
In storage bin 2 22, the other end is arranged in storage bin 1.
The lateral brace 3 include lateral brace column 14, be arranged in the lateral brace cover board 12 on 14 top of lateral brace column with
And fluted, the groove is arranged far from one end of stabilizer blade 13 in the stabilizer blade 13 being connected with lateral brace cover board 12, lateral brace cover board 12
It is matched with the protrusion at 1 top of baffle of top layer.
The middle pillar 2 includes middle pillar column 16, and at least two pieces of mounted on top are arranged among middle pillar column 16
Water proof rubber pad 10 is arranged in baffle 1, the side of baffle 1, and the other side is arranged side plate 9, is provided with a few type gaskets at the top of baffle 1
11, pillar cover board 15 in setting, top fastening bolt 6 pass through middle pillar cover board 15 and resist a few type gaskets 11 and baffle above a few type gaskets 11
1, middle pillar 2 is provided with stabilizer blade 13 close to the side of side plate 9, and hold-down bolt 8 passes through middle pillar column 16 and compresses side plate 9,
It is I-shaped shape at the top of middle pillar column 16, middle 16 bottom of pillar column is provided with pedestal 17.
Two symmetrical fixed plates 20 are provided on the pedestal 17, fixed plate 20 is correspondingly arranged at middle pillar column
16 two sides.
1 bottom of baffle is provided with middle part rubber pad 19 or bottom rubber pad 18.
The bottom of stabilizer blade 13 is inclined-plane, and the angle on inclined-plane is matched with the inclined angle of underground garage.
The storage bin 1 and storage bin 2 22 be it is hollow, storage bin 1 is opened on one side towards storage bin 2 22
Mouthful, the other three face is bolted on metope, the bottom surface of storage bin 2 22 and passes through spiral shell on one side close to tool box 21
Bolt is arranged on metope, and the one side of storage bin 2 22 towards storage bin 1 is open, and 2 22 top surface of storage bin is movably set with lid
Son 24.
Lid 24 is connected by hinge with storage bin 2 22, is provided with lock 25 on the inside of lid 24, storage bin 2 22 outside
Inside boss 26 is provided at the top of face, the position of boss 26 is matched with the position of lock 25 on the inside of lid 24；Work as lid
24 when covering, and rotation lock 25, lock 25 can be matched with boss, to achieve the purpose that lock storage bin 2 22.
The middle pillar cover board 15 is flexibly connected with middle pillar column 16,7 activity of quarter line pillaring cover board 5 and quarter line pillaring column
Connection.
The quarter line pillaring cover board 5 and middle pillar cover board 15 are upper layer and lower layer board group into the width of top plate and lower plywood
Degree is the same, and the length of lower plywood is longer than the length of top plate, and the position that the both sides of lower plywood are grown than the both sides of top plate is in
Slot on pillar column 16, quarter line pillaring column 7 matches, and top plate and lower plywood are integrally formed.
One quarter line pillaring cover board 5 is set on quarter line pillaring column 7, two middle pillar cover boards 15 are set on middle pillar column 16,
Two middle pillar cover boards 15 are separately positioned on the both sides of I-shaped middle 16 top surface of pillar column.Quarter line pillaring cover board 5 can be from quarter line pillaring
It is extracted out in column 7, middle pillar cover board 15 can be extracted out therefrom in pillar column 16.
Water proof rubber pad 10 and quarter line pillaring column 7 and water proof rubber pad 10 and middle pillar column 16 can integrally at
Type.
The present invention on the entrance ground of underground garage in use, first fix bottom steel plate, then by 7 He of quarter line pillaring column
Middle pillar column 16 fixes, and after fixing, first places side plate 9, then place baffle 1, the baffle 1 with bottom rubber pad 18
Setting is in contact in lowest level with bottom steel plate, then is superimposed 1 one or two layers of baffle with middle part rubber pad 19, then again will
A few type gaskets 11 are placed on baffle 1 and match with the protrusion of baffle 1, cover quarter line pillaring cover board 5 and middle pillar cover board 15 respectively,
Quarter line pillaring cover board 5 or middle pillar cover board 15 are passed through with top fastening bolt 6 again, a few type gaskets 11 is resisted and compresses baffle 1, to make quarter line pillaring
Pillar cover board in cover board 5(), a few type gaskets 11, between baffle 1 and bottom steel plate there is no gap, achieve the purpose that sealing.It twists again
Tight hold-down bolt 8, makes hold-down bolt 8 resist side plate 9, to make quarter line pillaring column 7(or middle pillar column 16), baffle 1, side
There is no gap between pressing plate 9, achieve the purpose that flood control, finally the stabilizer blade 13 of middle 16 side of pillar column is fixed on close to garage
On the ground of inlet side.
When lateral brace column 14 is installed, lateral brace column 14 is fixed at baffle 1 close to the one of underground garage entrance
Side matches the groove on lateral brace cover board 12 with the protrusion on baffle 1, stabilizer blade 13 is finally fixed on garage port side
Bottom surface on, achieve the purpose that reinforce fixed.
Storage bin is mounted on the metope of garage port side, and the distance between storage bin 1 and storage bin 2 22 are gear
The length of plate 1.After the flood past, in use, the lid 24 at 2 22 top of storage bin is first opened, then by the side of baffle 1
It is first inserted into storage bin 1, then the other side of baffle 1 is inserted into storage bin 2 22, after all baffles 1 are all put well
Lid 24 is covered, and rotating latch 25 makes to latch 25 and match with the boss 26 at 2 22 top of storage bin to reach latching storage bin two
22 purpose.
Claims (5)
1. a kind of flood prevention doors, including baffle, middle pillar, lateral brace, quarter line pillaring and bottom steel plate, quarter line pillaring is arranged in wall,
Bottom steel plate is arranged on the ground, and baffle one end is arranged in quarter line pillaring, and the other end is arranged in middle pillar, and middle pillar setting exists
The intermediate position of baffle is arranged in the position that the baffle on both sides is connected, lateral brace, it is characterised in that: the flood prevention doors also wrap
Flood prevention doors storage bin is included, the quarter line pillaring includes quarter line pillaring column, at least the two of setting mounted on top among quarter line pillaring column
Water proof rubber pad is arranged in block baffle, the side of baffle, and the other side is arranged side plate, is provided with a few type gaskets, several types at the top of baffle
Quarter line pillaring cover board is set above gasket, and top fastening bolt passes through quarter line pillaring cover board and resists a few type gaskets and baffle, and hold-down bolt passes through side
Pillar column compresses side plate；The flood prevention doors storage bin includes tool box, storage bin one and storage bin two, tool box and storage
It deposits case two to be connected, baffle one end is arranged in storage bin two, and the other end is arranged in storage bin one, one He of storage bin
Storage bin two be it is hollow, storage bin one towards storage bin two one side be open, the other three face is bolted on metope
On, the bottom surface of storage bin two and close to tool box one side by bolt setting on metope, storage bin two is towards storage bin one
One side opening, two top surface of storage bin is movably set with lid, and lid is connected by hinge with storage bin two, and lid inside is set
It is equipped with lock, inside boss, the position of boss and the position phase latched on the inside of lid are provided at the top of the outside of storage bin two
Cooperation.
2. a kind of flood prevention doors according to claim 1, it is characterised in that: the lateral brace includes lateral brace column, sets
The lateral brace cover board in lateral brace column top and the stabilizer blade that is connected with lateral brace cover board are set, lateral brace cover board is far from stabilizer blade
One end setting it is fluted, which matches with the protrusion at the top of the baffle of top layer.
3. a kind of flood prevention doors according to claim 1, it is characterised in that: the middle pillar includes middle pillar column, in
Water proof rubber pad is arranged at least two block baffles of setting mounted on top among pillar column, the side of baffle, and side is arranged in the other side
Pressing plate, baffle top are provided with a few type gaskets, and pillar cover board, top fastening bolt pass through middle pillar cover board and support in setting above a few type gaskets
Firmly a few type gaskets and baffle, middle pillar are provided with stabilizer blade close to the side of side plate, and hold-down bolt is compressed across middle pillar column
Side plate, middle pillar column top is I-shaped shape, and middle pillar column bottom is provided with pedestal.
4. a kind of flood prevention doors according to claim 3, it is characterised in that: be provided with symmetrical two on the pedestal
Fixed plate, fixed plate are correspondingly arranged at the two sides of middle pillar column.
5. a kind of flood prevention doors according to claim 1, it is characterised in that: the baffle bottom is provided with middle part rubber pad
Or bottom rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152376.8A CN106894743B (en) | 2017-03-15 | 2017-03-15 | A kind of flood prevention doors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152376.8A CN106894743B (en) | 2017-03-15 | 2017-03-15 | A kind of flood prevention doors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106894743A CN106894743A (en) | 2017-06-27 |
| CN106894743B true CN106894743B (en) | 2019-03-26 |
Family
ID=59192150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710152376.8A Expired - Fee Related CN106894743B (en) | 2017-03-15 | 2017-03-15 | A kind of flood prevention doors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106894743B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653666B (en) * | 2018-11-30 | 2020-07-14 | 象山谢海家具有限公司 | Automatic flood-proof door |
| CN115419015A (en) * | 2022-10-18 | 2022-12-02 | 上海外高桥造船有限公司 | Flood prevention door sealing device for crane rail |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201952779U (en) * | 2011-01-18 | 2011-08-31 | 黄顺仁 | Flood prevention water retaining gate structure |
| CN205276208U (en) * | 2016-01-08 | 2016-06-01 | 福州轨道交通设计院有限公司 | Prevent flooding breakwater |
| CN206571396U (en) * | 2017-03-15 | 2017-10-20 | 李永刚 | A kind of flood prevention doors |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6114073B2 (en) * | 2013-03-06 | 2017-04-12 | 株式会社美研製作所 | Inundation prevention device |
| JP6514558B2 (en) * | 2015-04-21 | 2019-05-15 | 株式会社美研製作所 | Flood prevention device |
-
2017
- 2017-03-15 CN CN201710152376.8A patent/CN106894743B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201952779U (en) * | 2011-01-18 | 2011-08-31 | 黄顺仁 | Flood prevention water retaining gate structure |
| CN205276208U (en) * | 2016-01-08 | 2016-06-01 | 福州轨道交通设计院有限公司 | Prevent flooding breakwater |
| CN206571396U (en) * | 2017-03-15 | 2017-10-20 | 李永刚 | A kind of flood prevention doors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106894743A (en) | 2017-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106894743B (en) | A kind of flood prevention doors | |
| CN206571396U (en) | A kind of flood prevention doors | |
| CN209768018U (en) | Outdoor communication machine case | |
| CN204456011U (en) | Self-floating turns over gate baffle device for water | |
| CN104818693B (en) | A kind of combination water-proof base | |
| CN102747748B (en) | Storage battery burying device and burying method for storing storage battery by using same | |
| CN205958627U (en) | Rain -proof electric meter metering box is used to open air | |
| CN210507303U (en) | Water-stop sheet for hydraulic engineering construction | |
| CN114354999A (en) | Waterproof outdoor ammeter | |
| CN209410638U (en) | A kind of logistic turnover box with water-proof function | |
| CN207009957U (en) | A kind of mining low-tension switch cabinet cabinet door safeguard structure | |
| CN207700159U (en) | A kind of water dam | |
| CN205047067U (en) | Single track sliding door | |
| CN204644961U (en) | Combination water-proof base | |
| CN219678956U (en) | Waterproof cover plate | |
| CN218432862U (en) | Container waterproof nature singly opens door structure | |
| CN206004149U (en) | Distributing box | |
| CN203411942U (en) | Self-dumping type flood prevention sandbox | |
| CN219733468U (en) | Novel tunnel flood gate equipment | |
| CN210858416U (en) | Plant waterproof door | |
| CN204646012U (en) | The anti-Hongmen Gate of a kind of building constructions | |
| CN212002743U (en) | Safety locking device for pump house of open pit mine drainage well | |
| CN204531922U (en) | A kind of heavy hanging folding door | |
| CN219513550U (en) | Novel looped netowrk cabinet anti-condensation device | |
| CN201818186U (en) | Casement window plastic door and window sectional material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |