CN208909552U - A kind of product storage rack of the weaving convenient for access - Google Patents

A kind of product storage rack of the weaving convenient for access Download PDF

Info

Publication number
CN208909552U
CN208909552U CN201820843186.0U CN201820843186U CN208909552U CN 208909552 U CN208909552 U CN 208909552U CN 201820843186 U CN201820843186 U CN 201820843186U CN 208909552 U CN208909552 U CN 208909552U
Authority
CN
China
Prior art keywords
cylinder
fixedly connected
rack
storage rack
product storage
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
Application number
CN201820843186.0U
Other languages
Chinese (zh)
Inventor
赵开威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaoxing Jinxianghui Textile Printing And Dyeing Co Ltd
Original Assignee
Shaoxing Jinxianghui Textile Printing And Dyeing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaoxing Jinxianghui Textile Printing And Dyeing Co Ltd filed Critical Shaoxing Jinxianghui Textile Printing And Dyeing Co Ltd
Priority to CN201820843186.0U priority Critical patent/CN208909552U/en
Application granted granted Critical
Publication of CN208909552U publication Critical patent/CN208909552U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Warehouses Or Storage Devices (AREA)

Abstract

The utility model discloses a kind of product storage racks of the weaving convenient for access, including pedestal, the first cylinder is fixedly connected in the middle part of the base upper surface, the lower part of the first cylinder inner sidewall is opened up there are two symmetrical sliding slot, the inside of each sliding slot is connected with sliding block compatible with sliding slot, the inside of the first cylinder is placed with the second cylinder, and the top of the second cylinder runs through the first cylinder and extends to the top of the first cylinder, two sliding blocks one side close to each other is fixedly connected with the bottom surface of the second cylinder lateral surface respectively, clockwise and anticlockwise motor is fixedly connected in the middle part of base upper surface, and clockwise and anticlockwise motor is located at the inside of the first cylinder.This is convenient for the weaving product storage rack of access, by the way that the second cylinder is arranged, under the effect of clockwise and anticlockwise motor, screw rod, loop coil and mounting blocks, it is able to achieve the purpose of the second cylinder association the second rack of band lifting, it is user-friendly to facilitate user to store and take positioned at the cloth of storage rack high level.

Description

A kind of product storage rack of the weaving convenient for access
Technical field
The utility model relates to textile technology field, specially a kind of product storage rack of the weaving convenient for access.
Background technique
Weaving original meaning is taken from the general name of spinning and woven fabric, but with the continuous hair of textile knowledge system and subject system Exhibition and perfect, after the technologies such as especially non-woven textile material and three-dimensional be composite braided generate, present weaving has been not only Traditional hand spinning and woven fabric also includes nonwoven fabric technology, Modern three-dimensional knitting skill, modern electrostatic nano-netting technology etc. The clothes of production are used, industry is used, decorative textile product, so, modern textile refers to more rulers of a kind of fiber or fiber assembly Spend structure processing technology.
Its cloth of weaving of existing textile enterprise is generally deposited in warehouse in rolls after the completion of drying, in order to make the appearance in warehouse Reasonable utilization is measured, existing textile product storage rack is commonly multilayered structure, this is allowed for, and storage rack is high-rise to be inconvenient to store With cloth of weaving of taking, existing user need to generally assist storage by foreign object and take positioned at the textile cloth of storage rack high level , inconvenience is brought for user, thus it is proposed that a kind of product storage rack of the weaving convenient for access.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of product storage rack of the weaving convenient for access, solution The problem of textile product storage rack of having determined is commonly multilayered structure, and the upper layer of storage rack person inconvenient to use uses.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions: a kind of to be deposited convenient for the weaving of access with product Frame, including pedestal are put, the first cylinder, the lower part of the first cylinder inner sidewall are fixedly connected in the middle part of the base upper surface It opening up there are two symmetrical sliding slot, the inside of each sliding slot is connected with sliding block compatible with sliding slot, and described first The inside of cylinder is placed with the second cylinder, and the top of the second cylinder runs through the first cylinder and extends to the top of the first cylinder, Two sliding blocks one side close to each other is fixedly connected with the bottom surface of the second cylinder lateral surface respectively, the base upper surface Middle part be fixedly connected with clockwise and anticlockwise motor, and clockwise and anticlockwise motor is located at the inside of the first cylinder, the inside of described the second cylinder Fixation is inlaid with loop coil, and screw rod compatible with loop coil, the spiral shell are fixedly connected in the middle part of the clockwise and anticlockwise motor upper surface The top of bar runs through loop coil and extends to the inside of the first cylinder, and the outer surface of screw rod is threadedly coupled with the inner ring of loop coil.
The outer surface of described the first cylinder is fixedly connected with the first rack being spaced substantially equidistant, and each described first places The upper surface of frame offers the first placing groove in semicircle shape, and the outer surface of described the second cylinder is fixedly connected with equidistant row The mounting blocks of column, and mounting blocks are located at the inside of the first cylinder, each one side of the mounting blocks far from the second cylinder is opened Equipped with mounting groove, the front of each mounting blocks is opened up there are two symmetrical first through hole, each mounting groove Inside is connected with the second rack compatible with mounting groove, and the second rack is located at the top of the first cylinder, Mei Gesuo The upper surface for stating the second rack offers the second placing groove in semicircle shape, and the front of each second rack is opened Equipped with the second through-hole, and the second through-hole is corresponding with first through hole, and there are two opposite for the placement of the front of each mounting blocks The straight pin of title, and the inner end of two straight pins sequentially passes through first through hole and the second through-hole and the back for extending to mounting blocks Face.
Preferably, the upper surface of the screw rod is fixedly connected with cylindrical limit disk, and limits disk and be located at the The inside of two cylinders.
Preferably, anticollison block, and the water of anticollison block are fixedly connected in the inner roof wall of each sliding slot and inner bottom wall The horizontal length value of flat length value and sliding slot.
Preferably, the right side of the pedestal is fixedly connected with draw bar, and the draw bar is fixed far from one end of pedestal It is connected with bail.
Preferably, the bottom surface of the pedestal is fixedly connected there are two symmetrical support column, the bottom of each support column End is fixedly hinged with idler wheel by pin, and the top that two support columns are located remotely from each other one side is fixedly hinged with and rolls Take turns compatible brake block.
Preferably, the horizontal plane where the second cylinder upper surface is equal with the horizontal plane where the first cylinder upper surface Row, the vertical length value of described the second cylinder are less than the vertical length value of the first cylinder.
(3) beneficial effect
The utility model provides a kind of product storage rack of the weaving convenient for access, have it is following the utility model has the advantages that
It (1) should be convenient for the weaving product storage rack of access, by the way that the second cylinder is arranged, in clockwise and anticlockwise motor, screw rod, spiral shell Under ring and mounting blocks effect, it is able to achieve the purpose of the second cylinder association the second rack of band lifting, so that user be facilitated to store and take Fetch bit is user-friendly in the cloth of storage rack high level.
(2) disk should be limited by setting, effectively prevent screw rod from producing spiral shell convenient for the weaving product storage rack of access Ring causes the second cylinder to fall off with screw rod and prevent the second cylinder from going up and down, and by the way that anticollison block is arranged, effectively sliding block is avoided to hit The inner roof wall and inner bottom wall for hitting sliding slot cause sliding block or sliding slot to damage, by setting draw bar and bail, can make the device just In traction, so that idler wheel be assisted to keep the device easy to remove, the placement can be made under the action of brake block by the way that idler wheel is arranged Frame is moved when needing mobile, and is in the storage rack by brake block when the device does not need be mobile Stable state, it is parallel with the upper surface of the first cylinder by the upper surface that the second cylinder is arranged, the second cylinder can be made to keep perpendicular Straight state, to prevent the second cylinder card resistance in the first cylinder, by the way that the vertical length value of the second cylinder is arranged less than the first circle The vertical length value of cylinder, can make the second cylinder be contracted in the inside of the first cylinder completely, to keep the device easy to carry and transport It is defeated.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model the first cylinder front view;
Fig. 2 is the cross-sectional view of the utility model mounting blocks front view;
Fig. 3 is the cross-sectional view of the second rack of the utility model front view.
In figure: 1 pedestal, 2 anticollison blocks, 3 first racks, 4 loop coils, 5 screw rods, 6 second racks, 7 straight pins, 8 installations Block, 9 limit disks, 10 support columns, 11 sliding slots, 12 sliding blocks, 13 clockwise and anticlockwise motors, 14 draw bars, 15 bails, 16 idler wheels, 17 Brake block, 18 first placing grooves, 19 the first cylinders, 20 the second cylinders, 21 first through hole, 22 mounting grooves, 23 second through-holes, 24 Two placing grooves.
Specific embodiment
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 Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of to be stored convenient for the weaving of access with product Frame, including pedestal 1, the bottom surface of pedestal 1 are fixedly connected there are two symmetrical support column 10, and the bottom end of each support column 10 is logical It crosses pin and is fixedly hinged with idler wheel 16, the top that two support columns 10 are located remotely from each other one side is fixedly hinged with and 16 phase of idler wheel The brake block 17 of adaptation, brake block 17 are also brake rubber block, and effect is the friction utilized between brake block and tire and ground, will The kinetic energy that vehicle is advanced is converted into the thermal energy after friction, and car is stopped, can make the rack when needing mobile into Row movement, and so that the storage rack is in stable state, the right side of pedestal 1 by brake block 17 when the device does not need be mobile Side is fixedly connected with draw bar 14, and draw bar 14 is fixedly connected with bail 15 far from one end of pedestal 1, can make the device just In traction, so that idler wheel 16 be assisted to keep the device easy to remove, pedestal is fixedly connected with the first cylinder 19 in the middle part of 1 upper surface, The lower part of 19 inner sidewall of the first cylinder is opened up there are two symmetrical sliding slot 11, and the inside of each sliding slot 11 is connected with and sliding slot 11 compatible sliding blocks 12, are fixedly connected to anticollison block 2 on the inner roof wall and inner bottom wall of each sliding slot 11, and anticollison block 2 The horizontal length value of horizontal length value and sliding slot 11 effectively avoids sliding block 12 from hitting the inner roof wall and inner bottom wall of sliding slot 11, causes Damage sliding block 12 or sliding slot 11, the inside of the first cylinder 19 is placed with the second cylinder 20, and the top of the second cylinder 20 is run through The first cylinder 19 and the top for extending to the first cylinder 19, two one sides close to each other of sliding block 12 respectively with the second cylinder 20 The bottom surface of lateral surface is fixedly connected, the horizontal plane where 20 upper surface of the second cylinder and the level where 19 upper surface of the first cylinder Face is parallel, and the second cylinder 20 can be made to keep vertical state, to prevent 20 card resistance of the second cylinder in the first cylinder 19, the second circle The vertical length value of cylinder 20 is less than the vertical length value of the first cylinder 19, and the second cylinder 20 can be made to be contracted in the first cylinder completely 19 inside, thus make to be fixedly connected with clockwise and anticlockwise motor 13 in the middle part of the device 1 upper surface of pedestal easy to carry and transport, and Clockwise and anticlockwise motor 13 is located at the inside of the first cylinder 19, and clockwise and anticlockwise motor 13 is also known as motor positive and inverse, positive and reverse rotation control circuit figure As long as and its principle analysis will realize that any two-phase being connected in motor three phase mains inlet wire is exchanged in the positive and negative rotation of motor Wiring is that can reach the purpose of reversion, the positive and negative rotation of screw rod 5 may be implemented by the positive and negative rotation of clockwise and anticlockwise motor 13, so that second Cylinder 20 may be implemented to go up and down, and the inside of the second cylinder 20 is fixed to be inlaid with loop coil 4, and the middle part of 13 upper surface of clockwise and anticlockwise motor is solid Surely it is connected with screw rod 5 compatible with loop coil 4, the top of screw rod 5 runs through loop coil 4 and extends to the inside of the first cylinder 19, and The outer surface of screw rod 5 is threadedly coupled with the inner ring of loop coil 4, and the upper surface of screw rod 5 is fixedly connected with cylindrical limit disk 9, and the inside that disk 9 is located at the second cylinder 20 is limited, it effectively prevents screw rod 5 from producing loop coil 4, causes the second cylinder 20 and spiral shell Bar 5 falls off and prevents the second cylinder 20 from going up and down.
The outer surface of the first cylinder 19 is fixedly connected with the first rack 3 being spaced substantially equidistant, each first rack 3 Upper surface offers the first placing groove 18 in semicircle shape, and the outer surface of the second cylinder 20, which is fixedly connected with, to be spaced substantially equidistant Mounting blocks 8, and mounting blocks 8 are located at the inside of the first cylinder 19, each one side of the mounting blocks 8 far from the second cylinder 20 opens up There is a mounting groove 22, the front of each mounting blocks 8 opens up that there are two symmetrical first through hole 21, the inside of each mounting groove 22 It is connected with second rack 6 compatible with mounting groove 22, and the second rack 6 is located at the top of the first cylinder 19, each The upper surface of second rack 6 offers the second placing groove 24 in semicircle shape, and the front of each second rack 6 is opened Equipped with the second through-hole 23, and the second through-hole 23 is corresponding with first through hole 21, and there are two phases for the placement of the front of each mounting blocks 8 Symmetrical straight pin 7, and the inner end of two straight pins 7 sequentially passes through first through hole 21 and the second through-hole 23 and extends to installation The back side of block 8.
Working principle: clockwise and anticlockwise motor 13 is connected with municipal power supply, first cloth is connected on the first rack 3 and is opened If the first placing groove 18 in, when needing to the high-rise storage cloth of the storage rack, clockwise and anticlockwise motor 13 is rotated forward, at this time spiral shell Bar 5 rotates forward, so that loop coil 4 drives the second cylinder 20 to rise under the action of screw thread, when the mounting blocks 8 of top are increased to first When the top of cylinder 19, the second rack 6 is connected in the mounting groove 22 in mounting blocks 8, and penetrates first with straight pin 7 and leads to Hole 21 and the second through-hole 23, at this time the second rack 6 assembly are completed, and cloth can be connected in the inside of the second placing groove 24, when When the second cylinder 20 needs to place multilayer cloth, only the second cylinder 20 need to be continued to rise, continuation installs second in mounting blocks 8 Rack 6 is to store multilayer cloth;
In conclusion should be convenient for the weaving product storage rack of access, by the way that the second cylinder 20 is arranged, in clockwise and anticlockwise motor 13, under screw rod 5, loop coil 4 and mounting blocks 8 act on, it is able to achieve the purpose that the second cylinder 20 assists the second rack of band 6 to go up and down, thus User is facilitated to store and take positioned at the cloth of the storage rack high level, it is user-friendly, by setting limit disk 9, effectively Prevent screw rod 5 from producing loop coil 4, cause the second cylinder 20 to fall off with screw rod 5 and the second cylinder 20 prevented to pass through setting from going up and down Anticollison block 2 effectively avoids sliding block 12 from hitting the inner roof wall and inner bottom wall of sliding slot 11, causes sliding block 12 or sliding slot 11 to damage, leads to Setting draw bar 14 and bail 15 are crossed, the device can be made convenient for traction, so that idler wheel 16 is assisted to keep the device easy to remove, By the way that idler wheel 16 is arranged, under the action of brake block 17, the rack can be made to be moved when needing mobile, and at this The storage rack is set to be in stable state by brake block 17 when device does not need be mobile, by the way that the second cylinder 20 is arranged Upper surface is parallel with the upper surface of the first cylinder 19, the second cylinder 20 can be made to keep vertical state, to prevent the second cylinder 20 For card resistance in the first cylinder 19, the vertical length value by the way that the second cylinder 20 is arranged is less than the vertical length value of the first cylinder 19, The second cylinder 20 can be made to be contracted in the inside of the first cylinder 19 completely, it, can be by the to keep the device easy to carry and transport The lifting of two cylinders 20 facilitates user to store and take more to facilitate user installation and remove the second rack of multilayer 6 to realize The purpose of layer cloth.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of product storage rack of the weaving convenient for access, including pedestal (1), it is characterised in that: pedestal (1) upper surface Middle part be fixedly connected with the first cylinder (19), the lower part of the first cylinder (19) inner sidewall is opened up there are two symmetrical cunning Slot (11), the inside of each sliding slot (11) are connected with and sliding slot (11) compatible sliding block (12), described the first cylinder (19) inside is placed with the second cylinder (20), and the top of the second cylinder (20) through the first cylinder (19) and extends to first The top of cylinder (19), two sliding blocks (12) one side close to each other bottom surface with the second cylinder (20) lateral surface respectively It is fixedly connected, is fixedly connected with clockwise and anticlockwise motor (13) in the middle part of pedestal (1) upper surface, and clockwise and anticlockwise motor (13) is located at The inside fixation of the inside of the first cylinder (19), the second cylinder (20) is inlaid with loop coil (4), the clockwise and anticlockwise motor (13) It is fixedly connected in the middle part of upper surface and runs through loop coil (4) simultaneously with loop coil (4) compatible screw rod (5), the top of the screw rod (5) The inside of the first cylinder (19) is extended to, and the outer surface of screw rod (5) is threadedly coupled with the inner ring of loop coil (4);
The outer surface of the first cylinder (19) is fixedly connected with the first rack (3) being spaced substantially equidistant, and each described first The upper surface of rack (3) offers the first placing groove (18) in semicircle shape, and the outer surface of the second cylinder (20) is solid Surely the mounting blocks (8) being spaced substantially equidistant are connected with, and mounting blocks (8) are located at the inside of the first cylinder (19), each installation Block (8) offers mounting groove (22) far from the one side of the second cylinder (20), and the front of each mounting blocks (8) opens up There are two symmetrical first through hole (21), and the inside of each mounting groove (22) is connected with to be adapted with mounting groove (22) The second rack (6), and the second rack (6) is located at the top of the first cylinder (19), each second rack (6) Upper surface offers the second placing groove (24) in semicircle shape, and the front of each second rack (6) offers the Two through-holes (23), and the second through-hole (23) is corresponding with first through hole (21), the front of each mounting blocks (8) is placed with Two symmetrical straight pins (7), and the inner end of two straight pins (7) sequentially passes through first through hole (21) and the second through-hole (23) and the back side of mounting blocks (8) is extended to.
2. a kind of product storage rack of the weaving convenient for access according to claim 1, it is characterised in that: the screw rod (5) upper surface is fixedly connected with cylindrical limit disk (9), and limits disk (9) and be located at the interior of the second cylinder (20) Portion.
3. a kind of product storage rack of the weaving convenient for access according to claim 1, it is characterised in that: each cunning It is fixedly connected to anticollison block (2) on the inner roof wall and inner bottom wall of slot (11), and the horizontal length value and sliding slot of anticollison block (2) (11) horizontal length value.
4. a kind of product storage rack of the weaving convenient for access according to claim 1, it is characterised in that: the pedestal (1) right side is fixedly connected with draw bar (14), and the draw bar (14) is fixedly connected with traction far from the one end of pedestal (1) Ring (15).
5. a kind of product storage rack of the weaving convenient for access according to claim 1, it is characterised in that: the pedestal (1) bottom surface is fixedly connected there are two symmetrical support column (10), and the bottom end of each support column (10) passes through pin It is fixedly hinged with idler wheel (16), the top that two support columns (10) are located remotely from each other one side is fixedly hinged with and idler wheel (16) compatible brake block (17).
6. a kind of product storage rack of the weaving convenient for access according to claim 1, it is characterised in that: second circle Horizontal plane where cylinder (20) upper surface is parallel with the horizontal plane where the first cylinder (19) upper surface, described the second cylinder (20) vertical length value is less than the vertical length value of the first cylinder (19).
CN201820843186.0U 2018-06-01 2018-06-01 A kind of product storage rack of the weaving convenient for access Expired - Fee Related CN208909552U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820843186.0U CN208909552U (en) 2018-06-01 2018-06-01 A kind of product storage rack of the weaving convenient for access

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820843186.0U CN208909552U (en) 2018-06-01 2018-06-01 A kind of product storage rack of the weaving convenient for access

Publications (1)

Publication Number Publication Date
CN208909552U true CN208909552U (en) 2019-05-31

Family

ID=66693249

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820843186.0U Expired - Fee Related CN208909552U (en) 2018-06-01 2018-06-01 A kind of product storage rack of the weaving convenient for access

Country Status (1)

Country Link
CN (1) CN208909552U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112224720A (en) * 2020-11-25 2021-01-15 上海欧珏供应链管理有限公司 Telescopic vertical wall for warehouse goods storage
CN112478616A (en) * 2020-12-07 2021-03-12 安徽信息工程学院 Polyester film reel storage support and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112224720A (en) * 2020-11-25 2021-01-15 上海欧珏供应链管理有限公司 Telescopic vertical wall for warehouse goods storage
CN112478616A (en) * 2020-12-07 2021-03-12 安徽信息工程学院 Polyester film reel storage support and using method thereof

Similar Documents

Publication Publication Date Title
CN208909552U (en) A kind of product storage rack of the weaving convenient for access
CN207738230U (en) A kind of weaving coiled strip cylinder rack
CN206521153U (en) A kind of weaving fast wire restoring device
CN207827565U (en) A kind of easy-to-dismount weaving spool
CN103565137A (en) Wall-mounted liftable storage cabinet
CN108800865A (en) A kind of efficient textile process drying unit
CN108870893A (en) A kind of textile cloth airing rest
CN206736481U (en) A kind of weaving creel of convenient dismounting
CN205420649U (en) Spinning shallow
CN209367552U (en) A kind of storage winding apparatus that silk spins
CN206406631U (en) A kind of steady type weaving marking equipment
CN207737795U (en) A kind of height-adjustable weaving creel
CN206476549U (en) A kind of knitted polyester fabric storage device easy to use
CN110409085A (en) A kind of high efficiency shortened process lacks water printing and dyeing textile equipment
CN209291687U (en) A kind of weaving wrap-up
CN209528649U (en) A kind of layering adjusting rotation shelf position-limit mechanism
CN208414767U (en) A kind of weaving creel easy to remove
CN208814318U (en) A kind of weaving reel that can conveniently collect cloth
CN209360014U (en) A kind of cabinet easy to use and high utilization rate
CN207389233U (en) The textile process cart of usable floor area can be increased
CN207739007U (en) Weaving is with boiling yarn feeding device
CN207061399U (en) A kind of batcher
CN207141133U (en) The textile cart being moved easily
CN206407253U (en) A kind of textile device for labeling
CN108393381A (en) Conical screen producing 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: 20190531

Termination date: 20200601

CF01 Termination of patent right due to non-payment of annual fee