CN208396022U - Rubber earthquake isolation support - Google Patents
Rubber earthquake isolation support Download PDFInfo
- Publication number
- CN208396022U CN208396022U CN201820742412.6U CN201820742412U CN208396022U CN 208396022 U CN208396022 U CN 208396022U CN 201820742412 U CN201820742412 U CN 201820742412U CN 208396022 U CN208396022 U CN 208396022U
- Authority
- CN
- China
- Prior art keywords
- stop nut
- baffle
- rubber
- steel column
- limit plate
- 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
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a kind of rubber earthquake isolation supports, belong to building shock insulation field, it is intended to provide a kind of rubber earthquake isolation support, it the advantage is that, reduce the loosening of stop nut, conducive to the use of support, its key points of the technical solution are that: including support body, support body includes the steel plate layer and the first rubber layer that several are arranged, steel plate layer includes the support portion being bonded with the first rubber layer and the stop collar that is obliquely extended positioned at support portion side, the height of stop collar is greater than the thickness of the first rubber layer, support body upper and lower ends are respectively arranged with limit plate, steel column is equipped between limit plate, steel column both ends are threaded with the stop nut for limiting distance between the limit plate, the through-hole for steel column horizontal displacement is offered on limit plate, through-hole internal diameter is greater than the outer diameter of the stop nut, limit plate and stop nut it Between be provided with the baffle for being used to support stop nut, steel column is equipped with the locating part that limitation stop nut rotates on steel column.
Description
Technical field
The utility model relates to building shock insulation field, in particular to a kind of rubber earthquake isolation support.
Background technique
Seismic isolation technology is placed on entire superstructure on the lesser Seismic Isolation of Isolation Layer of rigidity, which has enough perpendicular
To rigidity and vertical bearing capacity, building can be steadily supported, seismic energy can be reduced and transmitted to top, and there is foot
Enough soft horizontal rigidities and sufficiently large horizontal deformation are guaranteed with ensuring to be not in unstable phenomenon under severe earthquake action
Superstructure is kept apart with earthquake vibration, reduces the reaction of superstructure, protects superstructure and its inside to set to reach
Apply the purpose not being damaged.
Notification number is that the Chinese patent of CN207211901U discloses a kind of rubber earthquake isolation support, including support body, institute
Stating support body includes several steel plate layers being arranged and the rubber layer being arranged between steel plate layer, the steel plate layer packet
The height of the stop collar for including the support portion being bonded with rubber layer and being obliquely extended positioned at support portion side, the stop collar is greater than
The thickness of rubber layer.In earthquake, support body is by the seismic force in level, and deformation occurs for rubber layer, the support body
Upper and lower ends are respectively arranged with limit plate, and steel column is equipped between limit plate, and steel column both ends are threaded with described for limiting
The stop nut of distance between limit plate, the through-hole for steel column horizontal displacement is offered on the limit plate, and through-hole internal diameter is greater than
The outer diameter of the stop nut is provided with the baffle for being used to support the stop nut between the limit plate and stop nut.
When earthquake, the displacement in level occurs for steel plate layer and rubber layer, and under the action of stop collar, support body is in incline
Tiltedly, the displacement in level also occurs therewith for limit plate, and the relative displacement in level occurs for the limit plate of upper and lower ends, and steel column can also
The displacement in level occurs with limit plate by through-hole.
But when steel column moves in through-hole with limit plate, baffle will receive the horizontal friction force of limit plate effect,
So that stop nut is also by the horizontal frictional force of baffle effect, while stop nut also limits between two limit plates
Distance, therefore stop nut when two power are acted on stop nut simultaneously, can to limit also by the power of vertical direction
Nut loosening, and then influence the use of limit plate.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of rubber earthquake isolation support, it is excellent
Point is, reduces the loosening of stop nut, conducive to the use of support.
To achieve the above object, the utility model provides following technical solution: a kind of rubber earthquake isolation support, including support
Ontology, the support body include several steel plate layers being arranged and the first rubber layer being arranged between steel plate layer,
The steel plate layer includes the support portion being bonded with the first rubber layer and the stop collar that is obliquely extended positioned at support portion side, described
The height of stop collar is greater than the thickness of the first rubber layer, and the support body upper and lower ends are respectively arranged with limit plate, limit plate
Between be equipped with steel column, steel column both ends are threaded with the stop nut for limiting distance between the limit plate, limit plate
On offer through-hole for steel column horizontal displacement, through-hole internal diameter is greater than the outer diameter of the stop nut, the limit plate and limit
The baffle for being used to support the stop nut is provided between nut, the steel column is equipped with limitation stop nut and turns on steel column
Dynamic locating part.
By using above-mentioned technical proposal, when earthquake, vibration that steel plate layer and the first rubber layer generate earthquake
Buffer function is generated, when horizontal displacement occurs for two limit plates, locating part limits the rotation of the stop nut on steel column, in turn
So that stop nut secures the distance between two limit plates, the loosening of stop nut is reduced, is conducive to rubber earthquake isolation support
Use.
The utility model is further arranged to: the locating part includes the spacing collar for being set in steel column both ends, two institutes
The one end for stating spacing collar opening contacts on stop nut, and the outer diameter of the spacing collar is greater than the size of stop nut,
It is connected between two spacing collars by the first extension spring, first extension spring passes through baffle.
By using above-mentioned technical proposal, spacing collar covers the both ends of steel column and contradicts with stop nut, and first stretches
Spring makes spacing collar apply the pressure to baffle direction to stop nut, and then offsets limit plate and be applied to limit by baffle
Power on the nut of position, and then reduce rotation of the stop nut on steel column.
The utility model is further arranged to: rubber sleeve is arranged with outside first extension spring.
By using above-mentioned technical proposal, rubber sleeve protects the first extension spring, reduces the first extension spring and exists for a long time
It builds by rust corrosion in the soil body, and then influences the use of the first extension spring.
The utility model is further arranged to: the locating part includes the snap-gauge for being set in steel column both ends, the snap-gauge position
Deviate from the side of baffle in stop nut, is connected between two snap-gauges by connecting rod, the both ends of the connecting rod are prolonged
Snap-gauge is stretched out, and being threaded at the both ends for extending snap-gauge makes snap-gauge contradict the first locking screw on stop nut
It is female.
By using above-mentioned technical proposal, snap-gauge is pressed on stop nut by the first locking nut, and connecting rod is solid at this time
Determine the distance between two stop nuts, and then limits rotation of the stop nut on steel column, it is simple to operate.
The utility model is further arranged to: the baffle is equipped with the inserted link for extending snap-gauge, and the inserted link is extending
The threaded one end of snap-gauge is connected with the second locking nut out.
By using above-mentioned technical proposal, snap-gauge is fixed on baffle by the second locking nut, when the first locking nut is sent out
When raw loosening, the second locking nut can still play the role of limiting snap-gauge position on steel column, strengthen the fixation of snap-gauge.
The utility model is further arranged to: the baffle offers limiting slot, the limit at the both ends of stop nut
Position slot notch extends to stop nut, and the slot bottom of the limiting slot is equipped with compressed spring, and the compressed spring is far from limiting slot
Slot bottom one end is equipped with the briquetting contradicted with stop nut, and limiting slot side cell wall extends baffle.
By using above-mentioned technical proposal, operator first squeezes briquetting to compressed spring direction, by compressed spring pressure
It contracts and makes it have elastic-restoring force, when stop nut and baffle conflict, operator unclamps briquetting, and briquetting is in compressed spring
It is mobile to stop nut direction under effect, and then contradicted with stop nut, the rotation of stop nut is further limited, by limiting slot
Side cell wall extend baffle, convenient for operator push baffle.
The utility model is further arranged to: the baffle is filled with the second rubber layer, second rubber in limiting slot
The slot bottom of glue-line one end and limiting slot contradicts the other end and briquetting and contradicts away from the side of stop nut.
By using above-mentioned technical proposal, the second rubber layer will deviate from stop nut with briquetting after installing stop nut
Side contradict, limit movement of the briquetting in limiting slot, further limit the rotation of stop nut.
The utility model is further arranged to: the limit plate is offering the first dashpot with the position that baffle contradicts,
The second dashpot corresponding with the first dashpot is offered on the baffle, the first dashpot slot bottom is equipped with several second
One end of extension spring, the slot bottom of second extension spring far from the first dashpot is fixed on the slot bottom of the second dashpot.
By using above-mentioned technical proposal, when relative displacement occurring between two limit plates, baffle is moved up in limit plate
Dynamic, the second extension spring slows down the relative displacement between two limit plates at this time, and then increases shock isolating pedestal buffering earthquake
Performance.
Compared with prior art, the utility model has the following beneficial effects: steel column is equipped with limitation stop nut in steel
The locating part rotated on column reduces turning for stop nut in the horizontal displacement that shock isolating pedestal buffering earthquake generates building
It is dynamic, and then improve the service performance of shock isolating pedestal.
Detailed description of the invention
Fig. 1 is the overall structure diagram of embodiment 1；
Fig. 2 is the structural schematic diagram that embodiment 1 is used to embody support body；
Fig. 3 is the structural schematic diagram that embodiment 1 is used to embody locating part；
Fig. 4 is the enlarged structure schematic diagram in the portion A in Fig. 3；
Fig. 5 is the structural schematic diagram that embodiment 1 is used to embody briquetting；
Fig. 6 is the overall structure diagram of embodiment 2.
In figure, 1, support body；11, steel plate layer；111, support portion；112, stop collar；12, the first rubber layer；13, it limits
Plate；131, steel column；132, stop nut；133, through-hole；134, baffle；1341, limiting slot；1342, compressed spring；1343, it presses
Block；1344, the second rubber layer；1345, the second dashpot；135, the first dashpot；1351, the second extension spring；14, it limits
Part；141, spacing collar；142, the first extension spring；143, rubber sleeve；144, snap-gauge；145, connecting rod；146, the first locking
Nut；147, inserted link；148, the second locking nut.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment 1:
A kind of rubber earthquake isolation support, such as Fig. 2, including support body 1, support body 1 include that several are arranged along the vertical direction
The first rubber layer 12 for arranging the steel plate layer 11 of setting and being arranged between steel plate layer 11, steel plate layer 11 include and the first rubber layer
The support portion 111 of 12 fittings and the stop collar 112 being obliquely extended positioned at 111 side of support portion, the height of stop collar 112 are greater than
The thickness of first rubber layer 12；1 upper and lower ends of support body are respectively arranged with limit plate 13, and four are equipped between limit plate 13
Steel column 131(such as Fig. 1), each 131 both ends of steel column are threaded with the stop nut for limiting distance between limit plate 13
132；The through-hole 133 for 131 horizontal displacement of steel column is offered on limit plate 13,133 internal diameter of through-hole is greater than the outer of stop nut 132
Diameter is provided with the baffle 134 for being used to support stop nut 132 between limit plate 13 and stop nut 132.
Such as Fig. 2, rubber earthquake isolation support is connected between building and ground by upper and lower limit plate 13, by ground and building
Object separates, and when an earthquake occurs, the load of earthquake acts on steel plate layer 11, so that the displacement in level, steel occur for steel plate layer 11
The displacement of plate layer 11 drives the first rubber layer 12, and deformation occurs, and for buffering seismic force, the seismic force from ground is by the first rubber
Glue-line 12 buffers, and has only passed to top building at least partially through rubber earthquake isolation support.It is set on steel column 131 in the process
The locating part 14 that restricted stop nut 132 rotates on steel column 131.
Such as Fig. 3, locating part 14 includes the spacing collar 141 for being set in 131 both ends of steel column, and two spacing collars 141 are open
One end contact on stop nut 132, the outer diameter of spacing collar 141 is greater than the size of stop nut 132, and internal diameter is less than limit
The size of position nut 132, is connected by the first extension spring 142 between two spacing collars 141, the first extension spring 142
Both ends can be respectively welded on spacing collar 141, and the first extension spring 142 is passed through baffle 134.
Such as Fig. 3, at this time in seismic process, the first extension spring 142 applies to stop nut 132 spacing collar 141
The extruding force in direction reduces the power that two limit plates 13 during shaking move generation round about, reduces limit sleeve
Cylinder 141 reduces the rotation of spacing collar 141 to the trend mobile far from 13 direction of limit plate.
, during the installation process can be first by two 141 sets of spacing collar both ends in steel column 131 such as Fig. 3, and spacing collar
141 cylinder bottom and 131 one end of steel column contradict, and the both ends of the first extension spring 142 are respectively welded at two limit sleeves again later
141 outer walls of cylinder；It is arranged with rubber sleeve 143 outside the first extension spring 142 again later, the both ends of rubber sleeve 143 are also secured at limit
Position 141 outer wall of sleeve, 143 one side of rubber sleeve protect the first extension spring 142, reduce the first extension spring 142 and exist for a long time
The intracorporal corrosion of soil, another convenience are also applied with the power squeezed to 132 direction of stop nut to spacing collar 141, further subtract
Rotation of the small stop nut 132 on steel column 131.
Such as Fig. 5, in order to further limit the rotation of stop nut 132, therefore baffle 134 is at the both ends of stop nut 132
Limiting slot 1341 is offered, 1341 notch of limiting slot extends to stop nut 132, and the slot bottom of limiting slot 1341 is equipped with compression bullet
Spring 1342, compressed spring 1342 are equipped with the briquetting 1343 contradicted with stop nut 132, limit far from slot bottom one end of limiting slot 1341
Position 1341 side cell wall of slot extends baffle 134, and briquetting 1343 extends baffle 134, stirs briquetting 1343 convenient for operator.
Such as Fig. 5, when by 132 rotation direction baffle 134 of stop nut, briquetting 1343 is allocated to compressed spring first by operator
1342, so that compressed spring 1342 has elastic-restoring force by compression, later after stop nut 132 and baffle 134 contradict,
Briquetting 1343 is unclamped, briquetting 1343 is mobile to 132 direction of stop nut under the resilient force of compressed spring 1342, until with
Stop nut 132 contradicts, and further limits the rotation of stop nut 132 at this time.
Such as Fig. 5, in addition after briquetting 1343 and stop nut 132 contradict, baffle 134 is in limiting slot 1341 filled with the
The slot bottom of two rubber layers 1344,1344 one end of the second rubber layer and limiting slot 1341 contradicts the other end and briquetting 1343 away from limit
The side of nut 132 contradicts.Second rubber layer 1344 is upon installation, it will limitation briquetting 1343 is to far from stop nut 132
The movement in direction, so that briquetting 1343 closely contradicts on stop nut 132.
Such as Fig. 4, limit plate 13 offers the first dashpot 135 in the position contradicted with baffle 134, opens up on baffle 134
There is second dashpot 1345 corresponding with the first dashpot 135,135 slot bottom of the first dashpot is arranged in the horizontal direction equipped with several
Second extension spring 1351 of column, one end of slot bottom of second extension spring 1351 far from the first dashpot 135 is fixed on second
The slot bottom of dashpot 1345.
Such as Fig. 4, when two pieces of limit plates 13 generate relative horizontal displacement, baffle 134 also generates horizontal on limit plate 13
It is displaced, at this time 1345 relative misalignment of the first dashpot 135 and the second dashpot, so that the second extension spring 1351 is in the first buffering
It is stretched in slot 135 and the second dashpot 1345, the second extension spring 1351 slows down limit plate 13 and baffle in the process
Movement speed between 134, and then the movement speed of limit plate 13 in seismic process is slowed down, shock isolating pedestal is improved to building
The isolating affection of object.
Embodiment 2:
A kind of rubber earthquake isolation support, difference from example 1 is that, such as Fig. 6, locating part 14 includes being set in steel column
The strip snap-gauge 144 at 131 both ends, snap-gauge 144 are located at the side that stop nut 132 deviates from baffle 134, two snap-gauges 144 it
Between connected by connecting rod 145, connecting rod 145 passes through baffle 134, and snap-gauge 144 is extended away from limit in the both ends of connecting rod 145
The side of position nut 132, and being threaded at the both ends for extending snap-gauge 144 contradicts snap-gauge 144 in stop nut 132
On the first locking nut 146.
Such as Fig. 6, when installation, it is only necessary to snap-gauge 144 are inserted in steel column 131, and locked to 132 direction turn first of stop nut
Snap-gauge 144, is just pressed on stop nut 132 by tight nut 146, at this time connecting rod 145 limit two stop nuts 132 it
Between distance, and then reduce rotation of the stop nut 132 on steel column 131；In order to further consolidate the position of snap-gauge 144, because
This is equipped with the inserted link 147 for extending snap-gauge 144 on baffle 134, and inserted link 147 is in the threaded one end connection for extending snap-gauge 144
There is the second locking nut 148, the second locking nut 148 plays further firm effect to the fixation of 144 position of snap-gauge at this time.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of rubber earthquake isolation support, including support body (1), the support body (1) includes the steel that several are arranged
Plate layer (11) and the first rubber layer (12) being arranged between steel plate layer (11), the steel plate layer (11) include and the first rubber
The support portion (111) of layer (12) fitting and the stop collar (112) being obliquely extended positioned at support portion (111) side, the limit
The height of ring (112) is greater than the thickness of the first rubber layer (12)；Support body (1) upper and lower ends are respectively arranged with limit plate
(13), it is equipped with steel column (131) between the limit plate (13), steel column (131) both ends are threaded with for limiting
State the stop nut (132) of distance between limit plate (13)；It is offered on the limit plate (13) for steel column (131) horizontal displacement
Through-hole (133), through-hole (133) internal diameter be greater than the stop nut (132) outer diameter, the limit plate (13) and limit
The baffle (134) for being used to support the stop nut (132) is provided between nut (132), it is characterized in that: the steel column
(131) it is equipped with the locating part (14) that limitation stop nut (132) rotates on steel column (131).
2. rubber earthquake isolation support according to claim 1, it is characterized in that: the locating part (14) includes being set in steel column
(131) one end of the spacing collar (141) at both ends, two spacing collar (141) openings contacts at stop nut (132)
On, the outer diameter of the spacing collar (141) is greater than the size of stop nut (132), leads between two spacing collars (141)
The first extension spring (142) connection is crossed, first extension spring (142) passes through baffle (134).
3. rubber earthquake isolation support according to claim 2, it is characterized in that: being arranged with outside first extension spring (142)
Rubber sleeve (143).
4. rubber earthquake isolation support according to claim 1, it is characterized in that: the locating part (14) includes being set in steel column
(131) snap-gauge (144) at both ends, the snap-gauge (144) are located at the side that stop nut (132) deviate from baffle (134), two institutes
It states and is connected between snap-gauge (144) by connecting rod (145), the both ends of the connecting rod (145) are extended snap-gauge (144), and
Being threaded at the both ends for extending snap-gauge (144) makes snap-gauge (144) to contradict the first locking on stop nut (132)
Nut (146).
5. rubber earthquake isolation support according to claim 4, it is characterized in that: the baffle (134), which is equipped with, extends snap-gauge
(144) inserted link (147), the inserted link (147) are connected with the second locking nut in the threaded one end for extending snap-gauge (144)
(148).
6. rubber earthquake isolation support according to claim 1, it is characterized in that: the baffle (134) is in stop nut (132)
Both ends offer limiting slot (1341), and limiting slot (1341) notch extends to stop nut (132), the limiting slot
(1341) slot bottom is equipped with compressed spring (1342), and the compressed spring (1342) sets far from the slot bottom one end of limiting slot (1341)
There is the briquetting (1343) contradicted with stop nut (132), limiting slot (1341) side cell wall extends baffle (134).
7. rubber earthquake isolation support according to claim 6, it is characterized in that: the baffle (134) is in limiting slot (1341)
Filled with the second rubber layer (1344), the slot bottom of described second rubber layer (1344) one end and limiting slot (1341) contradicts the other end
It is contradicted with briquetting (1343) away from the side of stop nut (132).
8. rubber earthquake isolation support according to claim 1, it is characterized in that: the limit plate (13) is supported with baffle (134)
The position of touching offers the first dashpot (135), and corresponding with the first dashpot (135) is offered on the baffle (134)
Two dashpots (1345), the first dashpot (135) slot bottom are equipped with several second extension springs (1351), and described second draws
The one end for stretching the slot bottom of spring (1351) far from the first dashpot (135) is fixed on the slot bottom of the second dashpot (1345).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820742412.6U CN208396022U (en) | 2018-05-17 | 2018-05-17 | Rubber earthquake isolation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820742412.6U CN208396022U (en) | 2018-05-17 | 2018-05-17 | Rubber earthquake isolation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208396022U true CN208396022U (en) | 2019-01-18 |
Family
ID=65136662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820742412.6U Expired - Fee Related CN208396022U (en) | 2018-05-17 | 2018-05-17 | Rubber earthquake isolation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208396022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502935A (en) * | 2021-08-18 | 2021-10-15 | 东晟兴诚集团有限公司 | Shock insulation rubber support and construction method thereof |
-
2018
- 2018-05-17 CN CN201820742412.6U patent/CN208396022U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502935A (en) * | 2021-08-18 | 2021-10-15 | 东晟兴诚集团有限公司 | Shock insulation rubber support and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106936080B (en) | A kind of electrical control equipment cabinet with shock-absorbing function | |
| CN103195168B (en) | Composite three-dimensional shock isolation support of sandwich rubber-high damping disc spring | |
| JP2009541626A5 (en) | ||
| CN101725190A (en) | Three-dimensional composite seismic isolation supporting seat | |
| CN106759927A (en) | A kind of tandem type laminated rubber spring three-dimensional compounded shock isolating pedestal | |
| CN208396022U (en) | Rubber earthquake isolation support | |
| CN112575921A (en) | Slidable multidimensional vibration and vibration double-control shock isolation support | |
| CN207606795U (en) | A kind of workbench with shock-absorbing function | |
| CN109881784B (en) | Cambered surface sliding type three-dimensional shock insulation support | |
| CN116717560A (en) | Novel three-dimensional shock insulation device | |
| CN210510062U (en) | Rubber spring additionally provided with transverse stiffness limiter | |
| CN114790785B (en) | Large-bearing-capacity high-energy-consumption three-dimensional shock insulation support suitable for building structure | |
| CN110953279A (en) | Multistage vibration isolation platform based on cam-roller mechanical principle | |
| CN2272458Y (en) | Lead core rubber support | |
| CN201292579Y (en) | Stiffness changing composite lead core rubber support shock isolator | |
| CN204592114U (en) | One subtracts isolation mounting | |
| CN211256848U (en) | High-pile wharf support | |
| CN107327490A (en) | A kind of bearing of high stability | |
| CN209199727U (en) | A kind of desk-top transformer of multi-angle adjusting | |
| CN207526928U (en) | Large-scale precision electromechanical equipment shock insulation platform | |
| CN201982577U (en) | Plate-type laminated rubber shock absorber | |
| CN101457555A (en) | Stiffness changing composite lead core rubber support shock isolator | |
| CN110424256A (en) | One kind can anti-impact sliding and shock isolation device based on STF | |
| CN217601763U (en) | Horizontal follow-up tension-compression conversion shock insulation tensile mechanism | |
| CN206408752U (en) | A kind of architectural vibration-insulation structure |
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: 20190118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |