CN207703531U - A kind of sampler of the water quality detection convenient for being separated by solid-liquid separation - Google Patents
A kind of sampler of the water quality detection convenient for being separated by solid-liquid separation Download PDFInfo
- Publication number
- CN207703531U CN207703531U CN201721699923.6U CN201721699923U CN207703531U CN 207703531 U CN207703531 U CN 207703531U CN 201721699923 U CN201721699923 U CN 201721699923U CN 207703531 U CN207703531 U CN 207703531U
- Authority
- CN
- China
- Prior art keywords
- motion bar
- connecting seat
- solid
- water quality
- casing
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 238000000926 separation method Methods 0.000 title claims abstract description 22
- 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 abstract description 15
- 239000007787 solid Substances 0.000 abstract description 23
- 238000005070 sampling Methods 0.000 abstract description 12
- 238000005119 centrifugation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of sampler of water quality detection convenient for being separated by solid-liquid separation, including pedestal and driving machine, it is provided with the second connecting seat above first connecting seat, and first the centre of connecting seat and the second connecting seat spring is installed, it is provided with casing above the driving machine, and the lower section both sides of casing are both provided with discharge port, connection ring is installed between the connection cover and discharge port, and connection ring is internally provided with the first filter screen, the inside for holding pipe is equipped with third motion bar, and the bottom of third motion bar is provided with the second filter screen, second connecting seat is internally provided with groove, the upper right side of the casing is provided with feed inlet.Sampler of the water quality detection convenient for being separated by solid-liquid separation, it can be when being detected to water quality, solid and liquid can be separately detected, and Stratified Sampling can be carried out to the solid of various concentration and liquid by way of centrifugation, and then keep detection structure more accurate.
Description
Technical field
The utility model is related to water quality inspection technique field, sampling of specially a kind of water quality detection convenient for being separated by solid-liquid separation
Device.
Background technology
Water quality detection, which is detection, and measures type, concentration and the variation tendency of pollutant in water body carrys out evaluating water quality situation
Process, detection range is very extensive, including contaminated and contaminated natural water and various industrial water drainages etc.,
Water quality detection needs to be sampled water.Current water quality detecting device there is also some problems, for example, cannot well by
Solid in water and liquid separation cause water quality detection deviation occur, and current detection device not to water to be detected into
Row centrifugation, causes effectively the water to various concentration in water and solid to be sampled respectively, and then when to water quality measurement, meeting
Cause to measure and error occur, requirement of the user to water quality detecting device cannot be met.
Utility model content
The purpose of this utility model is to provide a kind of sampler of water quality detection convenient for being separated by solid-liquid separation, in solution
It cannot carry out being separated by solid-liquid separation and the solid-liquid in water cannot be carried out to be layered when stating the water quality detection proposed in background technology taking
The problem of sample.
To achieve the above object, the utility model provides the following technical solutions:A kind of water quality detection is used to be separated by solid-liquid separation
Sampler, including pedestal and driving machine, the lower section both sides of the pedestal are mounted on universal wheel, and the top both sides of pedestal
It is both provided with the first connecting seat, the second connecting seat is provided with above first connecting seat, and the first connecting seat and second connects
The centre of joint chair is equipped with spring, casing is provided with above the driving machine, and the lower section both sides of casing are both provided with discharging
Mouthful, connection cover is installed below the discharge port, shaft is connected with above the driving machine, and the top both sides of shaft are equal
It is provided with rotary drum, top plate is installed, and the inside of top plate is equipped with the first motion bar, first activity above the casing
Bar is internally provided with the second motion bar, and the side of first motion bar, which is provided with, holds pipe, and the both sides of the top plate are all provided with
It is equipped with connecting rod, and the junction of top plate and casing is equipped with diaphragm seal, and connection is equipped between the connection cover and discharge port
Ring, and connection ring is internally provided with the first filter screen, the inside for holding pipe is equipped with third motion bar, and third activity
The bottom of bar is provided with the second filter screen, and piston, second connecting seat are provided at the lower section port of second motion bar
Be internally provided with groove, the upper right side of the casing is provided with feed inlet.
Preferably, first connecting seat runs through into the second connecting seat, and the first connecting seat and the second connecting seat respectively with
It is fixedly connected between pedestal and casing, and the shape of the first connecting seat is " convex " shape, while the first connecting seat is connect with second
It is flexibly connected between seat.
Preferably, the discharge port, connection cover and connection ring are both provided at two, and discharge port, connection cover and connection ring
Between constitute detachable structure.
Preferably, the connection type between the top plate and casing is to be threadedly coupled, and fixed between top plate and connecting rod
Connection, and connecting rod about roof symmetric be arranged there are two.
Preferably, first motion bar runs through top plate, and there are five the first motion bar spaced sets, and first lives
It is flexibly connected between lever and top plate.
Preferably, the shape of second motion bar and third motion bar is "T"-shaped, and the second motion bar and third are lived
Lever is flexibly connected with the first motion bar and holding between pipe respectively.
Preferably, described hold constitutes detachable structure between pipe and the first motion bar, and holds and live with first inside pipe
The inside of lever is connected.
Compared with prior art, the utility model has the beneficial effects that:Sampling of the water quality detection convenient for being separated by solid-liquid separation
Solid and liquid can be separately detected, and can be by way of centrifugation by device when being detected to water quality
Solid and liquid to various concentration carry out Stratified Sampling, and then keep detection structure more accurate,
(1)Equipped with universal wheel, when needing to carry out water quality detection sampling in the wild, user can be pushed away by universal wheel
The device is moved, the device is pushed to rational position convenient for user;
(2)Equipped with the first connecting seat, the second connecting seat and spring, when the device works, casing can go out because of centrifugation
The case where now vibrating has the first connecting seat to stretch into the groove inside the second connecting seat at this time, and then spring can connect to second
Joint chair and the element of top play the effect for protecting the device into row buffering;
(3)Equipped with driving machine, shaft and rotary drum, when needing to be separated by solid-liquid separation water, driving machine can be opened, makes to turn
Axis drives drum rotating, and then is centrifuged to water, so that the liquid of various concentration and solid in water is layered, after being convenient for
Continuous sampling work;
(4)Equipped with the first motion bar, the second motion bar and pipe is held, when needing the water to various concentration to be sampled,
The second motion bar in different first motion bars can be pulled, the second motion bar band piston is made to move, and then water is pumped into the
In one motion bar, enter eventually into and hold in pipe, holding the water inside pipe at this time can be screened by the second filter screen, and then by water and
Solid detaches, and achievees the effect that separation of solid and liquid, and the first different motion bars can carry out the liquid and solid of various concentration
Sampling, the first intermediate motion bar is set there are two holding pipe, and is both provided with one on the first motion bar of same circle above
It is a to hold pipe, enabling double sampling is carried out at the same time to the sample in various concentration region, is convenient for comparing, and when solid
It varies in weight, their height distributions in water also can be different, therefore can move up and down the first motion bar, and then to different depths
The solid of degree is sampled.
Description of the drawings
Fig. 1 is that the utility model faces internal structure schematic diagram;
Fig. 2 is cross-sectional view at the utility model discharge port and connection cover;
Fig. 3 is structural schematic diagram at A in the utility model Fig. 1;
Fig. 4 is the first motion bar of the utility model and holds cross-sectional view at pipe;
Fig. 5 is cross-sectional view at the first connecting seat of the utility model and the second connecting seat.
In figure:1, pedestal, 2, universal wheel, the 3, first connecting seat, the 4, second connecting seat, 5, spring, 6, driving machine, 7, machine
Shell, 8, discharge port, 9, connection cover, 10, shaft, 11, rotary drum, 12, top plate, the 13, first motion bar, the 14, second motion bar, 15,
Hold pipe, 16, connecting rod, 17, diaphragm seal, 18, connection ring, the 19, first filter screen, 20, third motion bar, the 21, second filtering
Net, 22, piston, 23, groove, 24, feed inlet.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 5 are please referred to Fig.1, the utility model provides a kind of technical solution:A kind of water quality detection is used to be taken convenient for what is be separated by solid-liquid separation
Sampling device, including pedestal 1, universal wheel 2, the first connecting seat 3, the second connecting seat 4, spring 5, driving machine 6, casing 7, discharge port 8,
Connection cover 9, rotary drum 11, top plate 12, the first motion bar 13, the second motion bar 14, holds pipe 15, connecting rod 16, sealing at shaft 10
Piece 17, connection ring 18, the first filter screen 19, third motion bar 20, the second filter screen 21, piston 22, groove 23 and feed inlet 24,
The lower section both sides of pedestal 1 are mounted on universal wheel 2, and the top both sides of pedestal 1 are both provided with the first connecting seat 3, the first connection
Seat 3 runs through into the second connecting seat 4, and fixation connects between pedestal 1 and casing 7 respectively for the first connecting seat 3 and the second connecting seat 4
It connects, and the shape of the first connecting seat 3 is " convex " shape, while being flexibly connected between the first connecting seat 3 and the second connecting seat 4, when
When the device is given a shock, the first connecting seat 3 can be put in the second connecting seat 4, and then coordinate spring 5, can be to the device
The effect of buffering is played, the top of the first connecting seat 3 is provided with the second connecting seat 4, and the first connecting seat 3 and the second connecting seat 4
Centre spring 5 is installed, the top of driving machine 6 is provided with casing 7, and the lower section both sides of casing 7 are both provided with discharge port 8,
The lower section of discharge port 8 is equipped with connection cover 9, and discharge port 8, connection cover 9 and connection ring 18 are both provided at two, and discharge port 8, company
It connects and constitutes detachable structure between lid 9 and connection ring 18, it is detachable between connection cover 9 and connection ring 18, when discharge port 8 is blocked
When plug, connection cover 9 can be opened and connection ring 18 clears up discharge port 8, the top of driving machine 6 is connected with shaft 10, and
The top both sides of shaft 10 are both provided with rotary drum 11, and the top of casing 7 is equipped with top plate 12, and the inside of top plate 12 is equipped with
One motion bar 13, the connection type between top plate 12 and casing 7 is is threadedly coupled, and fixed company between top plate 12 and connecting rod 16
Connect, and connecting rod 16 about top plate 12 be symmetrical arranged there are two, when need to being cleaned inside the device when, can open
Top plate 12, convenient for being cleaned inside casing 7, the first motion bar 13 is internally provided with the second motion bar 14, the first activity
The side of bar 13, which is provided with, holds pipe 15, and the first motion bar 13 runs through top plate 12, and 13 spaced set of the first motion bar has five
It is a, and be flexibly connected between the first motion bar 13 and top plate 12, the setting of the first motion bar 13 is convenient for collecting various concentration
Liquid and solid, and then carry out Stratified Sampling, the shape of the second motion bar 14 and third motion bar 20 be it is "T"-shaped, and second
Motion bar 14 and third motion bar 20 are flexibly connected with the first motion bar 13 and holding between pipe 15 respectively, and the second motion bar 14 is matched
Close piston 22, can by casing 7 liquid and solid be pumped into and hold in pipe 15, and then play the role of collection, hold pipe
15 and first constitute detachable structure between motion bar 13, and hold 15 inside of pipe and be connected with the inside of the first motion bar 13,
But after being detached to liquid and solid, progress sample research is taken off convenient for pipe 15 will be held, the both sides of top plate 12 are respectively provided with
There is connecting rod 16, and top plate 12 and the junction of casing 7 are equipped with diaphragm seal 17, the company of being equipped between connection cover 9 and discharge port 8
Connecing ring 18, and connection ring 18 is internally provided with the first filter screen 19, the inside for holding pipe 15 is equipped with third motion bar 20, and
The bottom of third motion bar 20 is provided with the second filter screen 21, and piston 22 is provided at the lower section port of the second motion bar 14, the
Two connecting seats 4 are internally provided with groove 23, and the upper right side of casing 7 is provided with feed inlet 24.
Operation principle:When using the sampler convenient for being separated by solid-liquid separation using the water quality detection, it should first check that the device is
It is no intact, pedestal 1 is placed on level ground, when needing the device being pushed to field work, universal wheel 2 can be utilized
The device is pushed, the water centrifuged can will be needed to put into casing 7 at this time, driving machine 6 can be opened at this time, shaft 10 is made to drive
Rotary drum 11 rotates, and then is centrifuged to water, and the liquid of various concentration and solid in water is enable to be layered, convenient for subsequent
Sampling work, when the liquid of various concentration in water and it is fixedly separated good after, second in different first motion bars 13 can be pulled
Motion bar 14 makes the second motion bar 14 be moved with piston 22, and then water is pumped into the first motion bar 13, enters eventually into Sheng
It puts in pipe 15, holding the water inside pipe 15 at this time can be screened by the second filter screen 21, and after water sufficient standing, solid-state can stay in
On two filter screens 21, third motion bar 20 can be pulled, the second filter screen 21 is taken out, due to holding pipe 15 and the first motion bar
Detaching structure is constituted between 13, and holds and is connected between pipe 15 and the inside of the first motion bar 13, therefore can will hold pipe
15 take off from the first motion bar 13, and then water and solid are detached, and achieve the effect that separation of solid and liquid, and different first lives
Lever 13 can be sampled the liquid and solid of various concentration, and the first intermediate motion bar 13 is set there are two holding pipe 15,
And hold pipe 15 there are one being respectively provided on the first motion bar 13 of same circle above, enabling to various concentration region
Sample is carried out at the same time double sampling, is convenient for comparing, and when the density difference of solid, their height distributions in water are not
Together, and between the first motion bar 13 and top plate 12 sliding equipment is constituted, therefore can move up and down the first motion bar 13, and then is right
The solid of different depth is sampled, and in centrifugation, the first connecting seat 3 can stretch into the second connecting seat 4 device, and then spring
5 can play the effect for protecting the device to element above into row buffering, when the device needs cleaning, can pull
Connecting rod 16 makes top plate 12 be disassembled above casing 7, and then is convenient for being cleaned inside the device, 17 energy of diaphragm seal
The effect for enough playing sealing, avoids water from being flowed out from gap, when sample complete when, connection cover 9 can be opened, liquid is made to pass through the
One filter screen 19 flows out casing 7, and solid stays in 19 top of the first filter screen, and then convenient for being collected to solid, works as discharging
When mouth 8 blocks, connection cover 9 and connection ring 18 can be disassembled, convenient for being cleaned to discharge port 8.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of water quality detection sampler convenient for being separated by solid-liquid separation, including pedestal(1)And driving machine(6), it is characterised in that:
The pedestal(1)Lower section both sides be mounted on universal wheel(2), and pedestal(1)Top both sides be both provided with the first connecting seat
(3), first connecting seat(3)Top be provided with the second connecting seat(4), and the first connecting seat(3)With the second connecting seat(4)
Centre spring is installed(5), the driving machine(6)Top be provided with casing(7), and casing(7)Lower section both sides be all provided with
It is equipped with discharge port(8), the discharge port(8)Lower section connection cover is installed(9), the driving machine(6)Top be connected with turn
Axis(10), and shaft(10)Top both sides be both provided with rotary drum(11), the casing(7)Top top plate is installed(12),
And top plate(12)Inside the first motion bar is installed(13), first motion bar(13)Be internally provided with the second motion bar
(14), first motion bar(13)Side be provided with and hold pipe(15), the top plate(12)Both sides be both provided with connection
Bar(16), and top plate(12)With casing(7)Junction diaphragm seal is installed(17), the connection cover(9)With discharge port(8)It
Between connection ring is installed(18), and connection ring(18)Be internally provided with the first filter screen(19), described to hold pipe(15)It is interior
Portion is equipped with third motion bar(20), and third motion bar(20)Bottom be provided with the second filter screen(21), described second lives
Lever(14)Lower section port at be provided with piston(22), second connecting seat(4)Be internally provided with groove(23), described
Casing(7)Upper right side be provided with feed inlet(24).
2. a kind of sampler of the water quality detection according to claim 1 convenient for being separated by solid-liquid separation, it is characterised in that:It is described
First connecting seat(3)Through into the second connecting seat(4), and the first connecting seat(3)With the second connecting seat(4)Respectively with pedestal(1)
And casing(7)Between be fixedly connected, and the first connecting seat(3)Shape be " convex " shape, while the first connecting seat(3)With second
Connecting seat(4)Between be flexibly connected.
3. a kind of sampler of the water quality detection according to claim 1 convenient for being separated by solid-liquid separation, it is characterised in that:It is described
Discharge port(8), connection cover(9)And connection ring(18)It is both provided at two, and discharge port(8), connection cover(9)And connection ring(18)
Between constitute detachable structure.
4. a kind of sampler of the water quality detection according to claim 1 convenient for being separated by solid-liquid separation, it is characterised in that:It is described
Top plate(12)With casing(7)Between connection type be to be threadedly coupled, and top plate(12)With connecting rod(16)Between be fixedly connected,
And connecting rod(16)About top plate(12)There are two being symmetrical arranged.
5. a kind of sampler of the water quality detection according to claim 1 convenient for being separated by solid-liquid separation, it is characterised in that:It is described
First motion bar(13)Through top plate(12), and the first motion bar(13)There are five spaced sets, and the first motion bar
(13)With top plate(12)Between be flexibly connected.
6. a kind of sampler of the water quality detection according to claim 1 convenient for being separated by solid-liquid separation, it is characterised in that:It is described
Second motion bar(14)With third motion bar(20)Shape be "T"-shaped, and the second motion bar(14)With third motion bar
(20)Respectively with the first motion bar(13)With hold pipe(15)Between be flexibly connected.
7. a kind of sampler of the water quality detection according to claim 1 convenient for being separated by solid-liquid separation, it is characterised in that:It is described
Hold pipe(15)With the first motion bar(13)Between constitute detachable structure, and hold pipe(15)Internal and the first motion bar(13)
Inside be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721699923.6U CN207703531U (en) | 2017-12-08 | 2017-12-08 | A kind of sampler of the water quality detection convenient for being separated by solid-liquid separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721699923.6U CN207703531U (en) | 2017-12-08 | 2017-12-08 | A kind of sampler of the water quality detection convenient for being separated by solid-liquid separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207703531U true CN207703531U (en) | 2018-08-07 |
Family
ID=63025525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721699923.6U Expired - Fee Related CN207703531U (en) | 2017-12-08 | 2017-12-08 | A kind of sampler of the water quality detection convenient for being separated by solid-liquid separation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207703531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323804A (en) * | 2022-03-09 | 2022-04-12 | 美康盛德医疗科技(苏州)有限公司 | High-efficient separation sampling equipment based on mass spectrograph |
-
2017
- 2017-12-08 CN CN201721699923.6U patent/CN207703531U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323804A (en) * | 2022-03-09 | 2022-04-12 | 美康盛德医疗科技(苏州)有限公司 | High-efficient separation sampling equipment based on mass spectrograph |
| CN114323804B (en) * | 2022-03-09 | 2022-06-24 | 美康盛德医疗科技(苏州)有限公司 | High-efficient separation sampling equipment based on mass spectrograph |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207263494U (en) | A kind of saliva collecting device for genetic test | |
| CN107807011A (en) | A kind of water quality detection sampler for being easy to separation of solid and liquid | |
| CN207280790U (en) | A kind of collection sampling apparatus of rainwater | |
| CN207703531U (en) | A kind of sampler of the water quality detection convenient for being separated by solid-liquid separation | |
| CN201522485U (en) | Gas drainage detecting device and dewatering device thereof | |
| CN207088554U (en) | A kind of oil-residue separator for being easy to the dregs of fat to filter | |
| CN209894799U (en) | Agricultural product pesticide residue detection device | |
| CN208060482U (en) | A kind of carbon dioxide sensor with dust-proof effect | |
| CN111035981B (en) | A filter press device for phytoplankton in seawater | |
| CN208206560U (en) | A kind of water quality detection sampler | |
| CN108303290A (en) | A kind of environmental protection pollution matter collection device | |
| CN205804477U (en) | Rainwater-collecting defecator | |
| CN207114272U (en) | A kind of air particle comprehensively sampling device | |
| CN209280371U (en) | A kind of water quality monitoring sectional sampling device | |
| CN218994902U (en) | Quick extraction element of nitrate nitrogen suitable for in soil | |
| CN207923572U (en) | A kind of plant quarantine sample extraction instrument | |
| CN214066599U (en) | Silt matter sea area near-bottom suspended sand water sample collector | |
| CN214714700U (en) | Impurity detection and separation device for petroleum | |
| CN214373757U (en) | Soil screening plant for soil detection | |
| CN214041386U (en) | Water quality detection device based on ammonia nitrogen online analysis operation and maintenance | |
| CN214638171U (en) | Potato sieving mechanism | |
| CN208013207U (en) | A kind of use for laboratory water quality detecting device with filtering function | |
| CN211954898U (en) | Air quality detection sample collector | |
| CN208026500U (en) | A kind of environmental monitoring sewage sampling device | |
| CN204008222U (en) | Pressure air orifice sampling 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: 20180807 Termination date: 20211208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |