CN205962081U - Can open ventilative water planting formula vegetable greenhouse of formula by full canopy - Google Patents

Can open ventilative water planting formula vegetable greenhouse of formula by full canopy Download PDF

Info

Publication number
CN205962081U
CN205962081U CN201620924664.1U CN201620924664U CN205962081U CN 205962081 U CN205962081 U CN 205962081U CN 201620924664 U CN201620924664 U CN 201620924664U CN 205962081 U CN205962081 U CN 205962081U
Authority
CN
China
Prior art keywords
water planting
vegetables
dish
fixed
conveyer belt
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
CN201620924664.1U
Other languages
Chinese (zh)
Inventor
陈华
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.)
Chongqing Huayao Meidi Agricultural Development Co Ltd
Original Assignee
Chongqing Huayao Meidi Agricultural Development 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 Chongqing Huayao Meidi Agricultural Development Co Ltd filed Critical Chongqing Huayao Meidi Agricultural Development Co Ltd
Priority to CN201620924664.1U priority Critical patent/CN205962081U/en
Application granted granted Critical
Publication of CN205962081U publication Critical patent/CN205962081U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

The utility model discloses a can open ventilative water planting formula vegetable greenhouse of formula by full canopy, including outer rack, interior rack, water planting unit and results unit, the water planting unit includes the water planting pipe, cultivates screen frame and nutrient solution circulation system, and the results unit includes electronic linear slide rail, corner jar, picks the cylinder, the stop collar of growing, push away dish cylinder, netted chopping board, dish root conveyer belt, dish undercut cutting knife and the vegetables conveyer belt of pushing away, the utility model discloses the extraction ability is managed the vegetables of maturity through the results unit automatically from the water planting in to to the automatic root of cutting of vegetables, and with dish root and vegetables respectively through conveyer belt output, the results production efficiency of improvement vegetables that can be very big, reduction intensity of labour, and its outer rack needs the part open or all opens the big -arch shelter, can make things convenient for temperature in the quick reduction canopy, and its heat preservation membrane accessible liquid crystal light adjusting film adjusts the light that gets into the big -arch shelter, can avoid in the canopy adverse effect of high temperature to vegetable growth.

Description

Can the ventilative water planting formula green house of vegetables of full canopy opening type
Technical field
This utility model is related to a kind of agricultural equipment, particularly to a kind of green house of vegetables.
Background technology
Green house of vegetables is a kind of framework structure of film with outstanding heat-insulating property, and its appearance allows people to eat To vegetables in improper season.General green house of vegetables uses the skeleton of bamboo structure or steel construction, is covered with one or more layers insulation above and moulds Material film, material is thus formed a greenhouse space.Adventitia stops the stream of carbon dioxide produced by internal vegetable growth well Lose, make that there is in canopy good heat insulation effect.
But existing green house of vegetables intelligence degree is relatively low, in terms of reducing hand labor intensity, improve production efficiency Could be improved.
Although green house of vegetables can be very good to keep the temperature in booth in winter, in hot summer, booth is again There is a problem of that indoor temperature is too high.Although existing green house of vegetables can open booth two ends or window carries out ventilative cooling, Because booth length is larger, open booth two ends or the ventilative cooling-down effect of window is poor, and troublesome poeration.
Utility model content
In view of this, the purpose of this utility model is the water planting formula green house of vegetables providing a kind of energy full canopy opening type to breathe freely, Hand labor intensity can not preferably be reduced, improve growing vegetables production efficiency and existing big to solve existing green house of vegetables Canopy can easily not open the technical problem of cooling of quickly breathing freely in temperature higher season.
The water planting formula green house of vegetables that the full canopy opening type of this utility model energy is breathed freely, including outer frame, interior frame, water planting unit With harvest unit, described water planting unit includes being fixed on interior frame and the water planting pipe parallel longitudinal with interior frame, is uniformly arranged Culture hole on water planting pipe, the culture screen frame being arranged on culture in the hole and the nutrition fluid circulation being connected with water planting pipe, Described nutrition fluid circulation include nutritional solution storage pool, the water pump that the nutritional solution in nutritional solution storage pool is pumped into water planting pipe, Connect the return pipe of water planting pipe and nutritional solution storage pool and be arranged on the contaminant filter on return pipe;Described culture screen frame Inside it is provided with the particulate matter of fixing vegetable root system;
The described unit that harvests includes being arranged on electric linear slide rail above water planting pipe, is fixed on the cunning of electric linear slide rail Vertical connecting plate on block, the corner cylinder being horizontally fixed on vertical connecting plate, cylinder body and adopting that the piston rod of corner cylinder is fixedly connected Pluck cylinder, be fixed on the horizontal connecting plate plucking on cylinder piston rod, the pull bar being vertically fixed on horizontal connecting plate, be fixed on pull bar Growing stop collar, being vertically fixed on pushing away dish cylinder, passing through connection sheet and the piston pushing away dish cylinder on horizontal connecting plate on lower end What bar connected netted push away chopping board, is arranged in parallel in the other dish root conveyer belt of water planting pipe, is fixed on dish root above dish root conveyer belt Cutter and the vegetable conveyer belt being arranged in parallel in dish root conveyer belt side, the lower end of described growth stop collar passes through culture hole Abut on culture screen frame, the described netted chopping board that pushes away is located in growth stop collar, and the netted chopping board that pushes away is attached to the top cultivating screen frame On face;The slide block moving direction of described electric linear slide rail is longitudinally perpendicular with water planting pipe;
Described outer frame includes the parallel guide rail being fixed on interior frame longitudinal direction both sides, the static U-shaped being fixed on rail end Support, along guide rail arrangement several mobile U-bracket, be arranged on each mobile U-bracket end the row with track cooperation Walk roller, the drawstring connecting adjacent U-bracket, the insulation film being arranged on U-bracket and drive mobile U-bracket edge to lead The hoist engine of rail movement, the two ends of guide rail are respectively arranged with front jockey wheel and the rear guiding that the steel cable to hoist engine is guided Take turns, and first mobile U-bracket near front jockey wheel is fixedly connected with the steel cable of hoist engine;
Described insulation film by outer protective film, internal layer protecting film and be arranged on outer protective film and internal layer protecting film it Between liquid crystal light modulation film composition.
Further, the lower end of described mobile U-bracket is provided with spacing and limits rod.
Further, described interior frame is additionally provided with blower fan.
Further, the montant that described interior frame includes some row's cross bars being vertically arranged in juxtaposition and connects cross bar, described water Management, dish root conveyer belt and vegetable conveyer belt are vertically fixed on cross bar.
The beneficial effects of the utility model:
1st, the water planting formula green house of vegetables that the full canopy opening type of this utility model energy is breathed freely, it passes through to arrange water planting in interior frame Pipe, by vegetable hydroponic plantation and greenhouse gardening combine, can very big economizing the land resource, improve vegetable yields and quality.
2nd, the water planting formula green house of vegetables that the full canopy opening type of this utility model energy is breathed freely, it can pass through results unit will be ripe Vegetable produces automatically from water planting pipe, and to vegetable automatic cutting root, and dish root and vegetable are exported by conveyer belt respectively, can The results production efficiency of very big raising vegetable, reduces labor intensity.
3rd, the water planting formula green house of vegetables that the full canopy opening type of this utility model energy is breathed freely, the mobile U-bracket energy of its outer frame Move in the driving lower edge guide rail of hoist engine, so that outer frame can be fully open, so can basis in temperature higher summer Needs partially open or fully open booth, can reduce temperature of shed easily and fast;And have in the insulation film of outer frame One layer of liquid crystal light modulation film, under summer sunlight strong weather, can adjust, by liquid crystal light modulation film, the light entering booth, thus controlling Temperature in booth processed;Therefore this water planting formula green house of vegetables can more easily adjust control temperature of shed, can avoid high temperature in canopy Adverse effect to vegetable growth.
Brief description
The structural representation of the water planting formula green house of vegetables that Fig. 1 breathes freely for the full canopy opening type of the present embodiment energy;
Fig. 2 is the structural representation of outer frame;
Fig. 3 is the structural representation of water planting unit;
Fig. 4 is water planting unit and the partial structural diagram harvesting unit;
Fig. 5 is the structural representation of insulation film.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further described.
As illustrated, the present embodiment can the water planting formula green house of vegetables breathed freely of full canopy opening type, including outer frame, interior frame 1, Water planting unit and harvest unit, described water planting unit includes being fixed on interior frame and the water planting pipe 2 parallel longitudinal with interior frame, The culture hole being uniformly arranged on water planting pipe, the culture screen frame 3 being arranged on culture in the hole and the nutritional solution being connected with water planting pipe Blood circulation, described nutrition fluid circulation includes nutritional solution storage pool 4, the nutritional solution in nutritional solution storage pool is pumped into water planting The water pump 5 of pipe, connect the return pipe 6 of water planting pipe and nutritional solution storage pool and be arranged on the contaminant filter 7 on return pipe; It is provided with the particulate matter 8 of fixing vegetable root system in described culture screen frame;
The described unit that harvests includes being arranged on electric linear slide rail 9 above water planting pipe, is fixed on electric linear slide rail Vertical connecting plate 10 on slide block, corner cylinder 11, cylinder body and the corner cylinder being horizontally fixed on vertical connecting plate piston rod fixing even Connect plucks cylinder 12, is fixed on the horizontal connecting plate 13 plucking on cylinder piston rod, the pull bar being vertically fixed on horizontal connecting plate 14th, it is fixed on growing stop collar 15, being vertically fixed on pushing away dish cylinder 16, passing through connection sheet on horizontal connecting plate on pull bar lower end Be connected with the piston rod pushing away dish cylinder netted pushed away chopping board 17, is arranged in parallel in the other dish root conveyer belt 18 of water planting pipe, is fixed on Dish root cutter 19 above dish root conveyer belt and the vegetable conveyer belt 20 being arranged in parallel in dish root conveyer belt side, described life The lower end of long stop collar abuts on culture screen frame through culture hole, and the described netted chopping board that pushes away is located in growth stop collar, and net Shape pushes away chopping board and is attached on the top surface of culture screen frame;The slide block moving direction of described electric linear slide rail is hung down with the longitudinal direction of water planting pipe Directly;
Described outer frame includes the parallel guide rail 23 being fixed on interior frame longitudinal direction both sides, the static U being fixed on rail end Shape support 24, along guide rail arrangement several mobile U-bracket 25, be arranged on each mobile U-bracket end and join with track The walking roller 26 closing, the drawstring 27 connecting adjacent U-bracket, the insulation film 28 being arranged on U-bracket and driving are moved Along the hoist engine 29 of guide rail movement, it is leading that the two ends of guide rail are respectively arranged with that the steel cable to hoist engine guided to U-bracket To wheel 30 and rear directive wheel 31, and first mobile U-bracket near front jockey wheel is fixedly connected with the steel cable of hoist engine;
Described insulation film 28 by outer protective film 281, internal layer protecting film 282 and is arranged on outer protective film and internal layer Liquid crystal light modulation film 283 between protecting film forms.
The water planting formula green house of vegetables that the full canopy opening type of the present embodiment energy is breathed freely, it passes through to arrange water planting pipe in interior frame, By vegetable hydroponic plantation and greenhouse gardening combine, can very big economizing the land resource, improve vegetable yields and quality.
This utility model can the water planting formula green house of vegetables breathed freely of full canopy opening type, during plantation, colza is placed on and netted pushes away dish Plate, during vegetable growth, dish root enters in culture screen frame by the netted chopping board that pushes away with the mesh at culture screen frame top, dish root The particulate matter that root system can be cultured in screen frame is fixed, and vegetable can be avoided to come off in growth course, and grow stop collar in vegetable There are guiding and effect of contraction in dish growth course to the stem and leaf direction of growth of vegetable, the growthform of vegetable can be made more attractive.
When vegetable growth is ripe, cell operation is harvested by control, the piston rod of results unit harvesting cylinder is retracted and carried Dynamic growth stop collar and the netted chopping board that pushes away rise, thus vegetable is extracted from culture screen frame;Then electric linear slide rail drives Pluck cylinder to laterally move, when netted push away chopping board through dish root cutter when, dish root cutter lean against and netted push away chopping board bottom surface Slide, thus by positioned at the netted dish root excision pushing away chopping board subjacent, the dish root cutting away falls output on dish root conveyer belt;When When the driving harvesting cylinder movement of electric linear slide rail is to above vegetable conveyer belt, corner cylinder just drives harvesting cylinder to rotate certain angle Degree, the piston rod then pushing away dish cylinder is retracted and so that the netted chopping board that pushes away is moved to oral area from the bottom of growth stop collar, thus by vegetable Dish is released from growth stop collar, and vegetable skids off output on vegetable conveyer belt from growth stop collar.Harvesting unit can be certainly Move and ripe vegetable is produced automatically from water planting pipe, and to vegetable automatic cutting root, and dish root and vegetable are passed through respectively defeated Send band output, the results production efficiency of raising vegetable that can be very big, reduces labor intensity.
The water planting formula green house of vegetables that the full canopy opening type of the present embodiment energy is breathed freely, the mobile U-bracket of its outer frame can be in volume The driving lower edge guide rail raising machine moves, so that outer frame can be fully open, so can be as needed in temperature higher summer Partially open or fully open booth, temperature of shed can be reduced easily and fast;And in the insulation film of outer frame, there is one layer Liquid crystal light modulation film, under summer sunlight strong weather, can adjust, by liquid crystal light modulation film, the light entering booth, thus controlling big Temperature in canopy;Therefore this water planting formula green house of vegetables can more easily adjust control temperature of shed, can avoid in canopy high temperature to vegetable The adverse effect of dish growth.
In the present embodiment, described water planting pipe is rectangular tube, and described culture screen frame is rectangle frame, the top of described culture screen frame It is provided with the L shaped plate being affiliated in culture hole edge, L shaped plate passes through screw 21 and water planting pipe connects, culture screen frame is fixing reliable, and Easy accessibility.
In the present embodiment, the lower end of described mobile U-bracket is provided with spacing and limits rod 32, and spacing limits rod and is avoided that In outer frame opening procedure, adjacent walking roller collides.
In the present embodiment, described interior frame is additionally provided with blower fan 22, when weather is warmmer, can be improved greatly by blower fan 22 Air flow property in canopy, reduces canopy temperature, is conducive to the growth of vegetable.
In the present embodiment, the montant that described interior frame includes some row's cross bars being vertically arranged in juxtaposition and connects cross bar 101 102, described water planting pipe, dish root conveyer belt and vegetable conveyer belt are vertically fixed on cross bar;Interior scaffolding structure is simple, the side of building Just.
Finally illustrate, above example only in order to the technical solution of the utility model to be described and unrestricted, although ginseng According to preferred embodiment, this utility model is described in detail, it will be understood by those within the art that, can be to this The technical scheme of utility model is modified or equivalent, the objective without deviating from technical solutions of the utility model and model Enclose, it all should be covered in the middle of right of the present utility model.

Claims (4)

1. a kind of full canopy opening type of energy is breathed freely water planting formula green house of vegetables it is characterised in that:Including outer frame, interior frame, water planting Unit and harvest unit, described water planting unit includes being fixed on interior frame and the water planting pipe parallel longitudinal with interior frame, uniformly The culture hole being arranged on water planting pipe, the culture screen frame being arranged on culture in the hole and the nutritional solution circulation being connected with water planting pipe System, described nutrition fluid circulation includes nutritional solution storage pool, the nutritional solution in nutritional solution storage pool is pumped into water planting pipe Water pump, connect the return pipe of water planting pipe and nutritional solution storage pool and be arranged on the contaminant filter on return pipe;Described culture It is provided with the particulate matter of fixing vegetable root system in screen frame;
The described unit that harvests includes being arranged on electric linear slide rail above water planting pipe, is fixed on the slide block of electric linear slide rail Vertical connecting plate, the harvesting gas that is fixedly connected with the piston rod of corner cylinder of the corner cylinder being horizontally fixed on vertical connecting plate, cylinder body Cylinder, it is fixed on the horizontal connecting plate plucking on cylinder piston rod, the pull bar being vertically fixed on horizontal connecting plate, is fixed on pull bar lower end On growth stop collar, be vertically fixed on horizontal connecting plate pushing away dish cylinder, by connection sheet and push away dish cylinder piston rod even Connect netted push away chopping board, is arranged in parallel in the other dish root conveyer belt of water planting pipe, is fixed on dish root cutting above dish root conveyer belt Knife and the vegetable conveyer belt being arranged in parallel in dish root conveyer belt side, the lower end of described growth stop collar reclines through culture hole On culture screen frame, the described netted chopping board that pushes away is located in growth stop collar, and the netted chopping board that pushes away is attached on the top surface of culture screen frame; The slide block moving direction of described electric linear slide rail is longitudinally perpendicular with water planting pipe;
Described outer frame include the parallel guide rail being fixed on interior frame longitudinal direction both sides, the static U-bracket being fixed on rail end, Several along guide rail arrangement move U-bracket, are arranged on each mobile U-bracket end the walking rolling with track cooperation Wheel, the drawstring connecting adjacent U-bracket, the insulation film being arranged on U-bracket and the mobile U-bracket of driving move along guide rail Dynamic hoist engine, the two ends of guide rail are respectively arranged with front jockey wheel and the rear directive wheel that the steel cable to hoist engine is guided, and First mobile U-bracket near front jockey wheel is fixedly connected with the steel cable of hoist engine;
Described insulation film by outer protective film, internal layer protecting film and is arranged between outer protective film and internal layer protecting film Liquid crystal light modulation film forms.
2. the full canopy opening type of energy according to claim 1 is breathed freely water planting formula green house of vegetables it is characterised in that:Described movement The lower end of U-bracket is provided with spacing and limits rod.
3. the full canopy opening type of energy according to claim 1 is breathed freely water planting formula green house of vegetables it is characterised in that:Described interior canopy Blower fan is additionally provided with frame.
4. the full canopy opening type of energy according to claim 1 is breathed freely water planting formula green house of vegetables it is characterised in that:Described interior canopy The montant that frame includes some row's cross bars being vertically arranged in juxtaposition and connects cross bar, described water planting pipe, dish root conveyer belt and vegetable are defeated Band is sent to be vertically fixed on cross bar.
CN201620924664.1U 2016-08-23 2016-08-23 Can open ventilative water planting formula vegetable greenhouse of formula by full canopy Expired - Fee Related CN205962081U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620924664.1U CN205962081U (en) 2016-08-23 2016-08-23 Can open ventilative water planting formula vegetable greenhouse of formula by full canopy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620924664.1U CN205962081U (en) 2016-08-23 2016-08-23 Can open ventilative water planting formula vegetable greenhouse of formula by full canopy

Publications (1)

Publication Number Publication Date
CN205962081U true CN205962081U (en) 2017-02-22

Family

ID=58034061

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620924664.1U Expired - Fee Related CN205962081U (en) 2016-08-23 2016-08-23 Can open ventilative water planting formula vegetable greenhouse of formula by full canopy

Country Status (1)

Country Link
CN (1) CN205962081U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106105896A (en) * 2016-08-23 2016-11-16 重庆华曜美地农业开发有限公司 The water planting formula green house of vegetables system that the full canopy opening type of energy is ventilative
CN107155726A (en) * 2017-06-30 2017-09-15 镇江市润州园林绿化研究所 A kind of plant box system for being easy to seedling transplanting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106105896A (en) * 2016-08-23 2016-11-16 重庆华曜美地农业开发有限公司 The water planting formula green house of vegetables system that the full canopy opening type of energy is ventilative
CN107155726A (en) * 2017-06-30 2017-09-15 镇江市润州园林绿化研究所 A kind of plant box system for being easy to seedling transplanting

Similar Documents

Publication Publication Date Title
CN106069369A (en) Water planting formula green house of vegetables system with fast inspection function
CN205431151U (en) Greenhouse is cultivateed to domestic fungus
CN106105896A (en) The water planting formula green house of vegetables system that the full canopy opening type of energy is ventilative
CN206808232U (en) A kind of warmhouse booth suitable for do mechanization operation
CN110337955A (en) A kind of agricultural greenhouse that stability is strong
CN107333594A (en) A kind of ornamental plant bletilla striata planting shed that can monitor humiture in canopy in real time
CN205962081U (en) Can open ventilative water planting formula vegetable greenhouse of formula by full canopy
CN215736038U (en) Agricultural technology promotes to plant and uses water-saving irrigation big-arch shelter
CN206118574U (en) Take water planting formula vegetable greenhouse of nutrient solution processing capacity
CN208128997U (en) The greenhouse of Dendrobidium huoshanness plantation with insect prevention function
CN205922235U (en) Water planting formula vegetable greenhouse
CN214676804U (en) Double-film pressurizing greenhouse with low energy consumption
CN206078294U (en) Water planting formula vegetable greenhouse of function is patrolled and examined fast in area
CN207383092U (en) A kind of greenhouse with fly net
CN106105888A (en) The water planting formula green house of vegetables system of band remotely monitoring
CN211064433U (en) Mushroom planting big-arch shelter
CN106212113A (en) The water planting formula green house of vegetables system of function is processed with nutritional solution
CN106342590A (en) Water culture type vegetable greenhouse system
CN205922234U (en) Take water planting formula vegetable greenhouse of remote monitoring
CN208300483U (en) A kind of efficient booth vegetable adjustable thermal insulation device
CN205922236U (en) Vegetable greenhouse of adjustable illumination intensity and temperature
CN212936998U (en) Sun-shading system in greenhouse
CN206212929U (en) A kind of new bamboo rat plant
CN206713575U (en) A kind of Multifunctional greenhouse
CN213127741U (en) Greenhouse is grown seedlings with spouting medicine insecticidal device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170222

Termination date: 20170823

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