CN104264430B - Air dryer with deflecting plate - Google Patents

Air dryer with deflecting plate Download PDF

Info

Publication number
CN104264430B
CN104264430B CN201410545343.6A CN201410545343A CN104264430B CN 104264430 B CN104264430 B CN 104264430B CN 201410545343 A CN201410545343 A CN 201410545343A CN 104264430 B CN104264430 B CN 104264430B
Authority
CN
China
Prior art keywords
air
deflecting plate
passage
dry machine
gear
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.)
Active
Application number
CN201410545343.6A
Other languages
Chinese (zh)
Other versions
CN104264430A (en
Inventor
陈晨
王珂
董政
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.)
Jinling Institute of Technology
Original Assignee
Jinling Institute of Technology
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 Jinling Institute of Technology filed Critical Jinling Institute of Technology
Priority to CN201410545343.6A priority Critical patent/CN104264430B/en
Publication of CN104264430A publication Critical patent/CN104264430A/en
Application granted granted Critical
Publication of CN104264430B publication Critical patent/CN104264430B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/10Drying cabinets or drying chambers having heating or ventilating means
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 

Abstract

The invention discloses an air dryer with a deflecting plate. The air dryer with the deflecting plate comprises an air dryer main body; the air dryer main body comprises an outer casing and an inner cylinder; the lower portion of the air dryer main body is provided with an air inlet channel; the air inlet channel is communicated with the lower portion of the inner cylinder; the deflecting plate is arranged at a communication position of the inner cylinder and the air inlet channel; the periphery of the deflecting plate is matched with the air inlet channel in a sealing mode; a straight air channel and a lateral air channel which are vertically through are arranged on the deflecting plate; the straight air channel is arranged in the middle of the deflecting plate; the lateral air channel is distributed on a deflecting plate portion from a plate center to the edge; the lateral air channel is arranged in a bending mode; the lower portion of the lateral air channel is communicated with the air inlet channel; an included angle is formed between the upper portion direction of the lateral air channel and the vertical direction; an extension direction on the upper portion of the lateral air channel is far from the plate center of the deflecting plate. The air dryer with the deflecting plate has the advantages of being quick in air drying speed, uniform in air drying effect, free of electricity driving and simple in structure.

Description

There is the air-dry machine of deflecting plate
Technical field
The present invention relates to the technical field of washing corollary equipment, more particularly, to there is the air-dry machine of deflecting plate.
Background technology
Although there being various air-dry machines in the market, especially people are away from home and stay in hotel or other places, change clothes clothing Clothes are few, and carry-on medicated clothing needs Quick-air-drying after washing, and existing air-dry machine to be all another air port go out wind.This Setting can only be blown to clothes a face, blow elsewhere less than, lead to air-dry speed not fast, air-dried effect is uneven, shadow Ring and air-dry engine efficiency.Some places are not suitable for using electrically driven (operated) air-dry machine, can cause potential danger, and such as publilc baths, water can wait Ground, if can carry out air-drying using manpower, the suitability can be lifted a lot.
Content of the invention
The technical problem to be solved is for the above-mentioned state of the art, and provides and air-dry speed soon, air-dried effect Uniformly, not electricity consumption is driven, structure simply has the air-dry machine of deflecting plate.
The technical scheme that present invention solution above-mentioned technical problem is adopted is:
There is the air-dry machine of deflecting plate, including air-dry machine main body, air-dry machine main body includes shell body and inner barrel, air-dry machine The bottom of main body is provided with air intake passage, and air intake passage is connected with inner barrel bottom, is provided with fan assembly, wind in air intake passage Fan device is connected with manual rocking handle by change speed gear box, and fan assembly includes the fan of an inward-facing cylinder, the power transmission shaft of fan Connect a helical teeth break-in combination, helical teeth break-in combination includes the first helical gear and the second helical gear, the first helical gear and second Helical gear is mutually twisted, and the first helical gear wheel shaft is the power transmission shaft of fan, and the power transmission shaft of fan is to be vertically arranged, the second helical teeth The wheel shaft of wheel is horizontally disposed with, and the second helical gear wheel shaft stretches in change speed gear box, includes first being mutually twisted straight in change speed gear box Gear and the second spur gear, the wheel footpath of the first spur gear is more than the wheel footpath of the second spur gear, and the wheel shaft of the first spur gear stretches out change Fast case connects manual rocking handle, and air intake passage is provided with deflecting plate with the junction of inner barrel, and deflecting plate periphery is close with air intake passage Envelope cooperation, deflecting plate is provided with the straight wind passage running through up and down and crosswind passage, straight wind passage is arranged on the middle part of deflecting plate, Crosswind number of channels is several, is evenly distributed on the plate heart of the deflecting plate plate body to edges of boards edge, the bending of crosswind passage sets Put, the beneath galleries connection air intake passage of crosswind passage, the channel upper direction of crosswind passage and vertical direction are formed with angle, And the channel upper bearing of trend of crosswind passage is the plate heart away from deflecting plate.
For optimizing technique scheme, the concrete measure taken also includes:
Multiple smooth bumps are provided with the inwall of above-mentioned inner barrel, the recess that adjacent smooth bumps are formed with smooth Projection seamlessly transits, and recess is corresponding with the channel upper bearing of trend position of crosswind passage, and smooth bumps are removably to set It is placed in inner core body.
Above-mentioned air-dry machine main body is provided with inlet flange with the junction of air intake passage.
Be equipped with the first fixed mount on the first above-mentioned helical gear wheel shaft, the first fixed mount include the first fixed block and First steady arm, the first helical gear wheel shaft is passed through the first fixed block and is rotatably coordinated with the first fixed block.
Be equipped with the second fixed mount on the second above-mentioned helical gear wheel shaft, the second fixed mount include the second fixed block and Second steady arm, the second helical gear wheel shaft is passed through the second fixed block and is rotatably coordinated with the second fixed block.
The wheel shaft of the first above-mentioned spur gear stretches out the bearing being provided with change speed gear box for reducing frictional force.
Above-mentioned manual rocking handle end bag is provided with anti-skid protecting cover.
The first above-mentioned helical gear, the second helical gear are trapezoidal gear, the inclined-plane phase of two trapezoidal gears matching Mutually occlusion is in transmission connection so that being horizontally disposed with wheel shaft with the wheel shaft being vertically arranged.
Above-mentioned air-dry machine body top is provided with lid.
The quantity of above-mentioned crosswind passage is four, and the plate heart of each crosswind passage and deflecting plate is apart from equal, four sides It is laid on deflecting plate the radians such as wind passage.
Compared with prior art, the air-dry machine with deflecting plate of the present invention, including air-dry machine main body, air-dry machine main body bag Include shell body and inner barrel, the bottom of air-dry machine main body is provided with air intake passage, and air intake passage is connected with inner barrel bottom, air intake It is provided with fan assembly, fan assembly is connected with manual rocking handle by change speed gear box, and it is inward-facing that fan assembly includes one in passage The fan of cylinder, the power transmission shaft of fan connects a helical teeth break-in combination, and helical teeth break-in combination includes the first helical gear and second Helical gear, the first helical gear and the second helical gear are mutually twisted, and the first helical gear wheel shaft is the power transmission shaft of fan, the biography of fan Moving axis is to be vertically arranged, and the second helical gear wheel shaft is horizontally disposed with, and the second helical gear wheel shaft stretches in change speed gear box, in change speed gear box Include the first spur gear being mutually twisted and the second spur gear, the wheel footpath of the first spur gear is more than the wheel footpath of the second spur gear, The wheel shaft of the first spur gear stretches out change speed gear box and connects manual rocking handle, and air intake passage is provided with deflecting plate with the junction of inner barrel, Deflecting plate periphery and air intake passage sealing cooperation, deflecting plate is provided with the straight wind passage running through up and down and crosswind passage, straight wind Passage is arranged on the middle part of deflecting plate, and crosswind number of channels is several, and the plate heart being evenly distributed on deflecting plate is to edges of boards edge Plate body on, crosswind passage bending setting, crosswind passage beneath galleries connection air intake passage, the channel upper side of crosswind passage It is formed with angle to vertical direction, and the channel upper bearing of trend of crosswind passage is the plate heart away from deflecting plate.The present invention The transmission of air-dry machine fan be not used electricity as the energy, operated by the way of wind, when shaking manual rocking handle, the Gear driven second spur gear rotates always, and the second spur gear drives the second helical gear and the first helical gear to rotate, the first helical teeth Wheel belt wind symptom fan rotates, and produces wind, and wind, when deflecting plate, is blown by the wind of straight wind passage, directly up by crosswind passage Wind direction side blow, the wind blowing to side, through the smooth steering of smooth bumps, blows to, from side, the medicated clothing being placed on inner barrel. So, it is the formation of several air channels, from multiple directions, the medicated clothing inner barrel is dried up, efficiency doubles, because the side of drying up To various, the different piece of clothes can be subject to wind, air-dried uniform in effect, present invention employs the straight-tooth differing in size a pair Wheel, i.e. the first spur gear and the second spur gear, the first spur gear wheel footpath being connected with rocking handle is more than the wheel footpath of the second spur gear, this Sample can make fan turn when handle turns around and go up a few, improve efficiency.
To sum up, the present invention has that air-dried speed is fast, and it is excellent that air-dried uniform in effect, not electricity consumption are driven, structure is simple Point.
Brief description
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the wind rose of the present invention;
Fig. 3 is the structural representation of deflecting plate.
Specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 to Fig. 3 show the structural representation of the present invention.
Reference therein is: air-dry machine main body 1, shell body 11, inner barrel 12, smooth bumps 12a, air intake passage 2, Inlet flange 21, deflecting plate 22, straight wind passage 22a, crosswind passage 22b, fan assembly 3, fan 31, change speed gear box 4, the first straight-tooth The 6, first helical gear 61, the second helical gear are combined in wheel the 41, second spur gear 42, manual rocking handle 5, anti-skid protecting cover 51, helical teeth break-in 62nd, the first fixed mount 7, the second fixed mount 8.
As shown in Figure 1 to Figure 3, there is the air-dry machine of deflecting plate, including air-dry machine main body 1, air-dry machine main body 1 includes shell Body 11 and inner barrel 12, the bottom of air-dry machine main body 1 is provided with air intake passage 2, and air intake passage 2 is connected with inner barrel 12 bottom, It is provided with fan assembly 3, fan assembly 3 is connected with manual rocking handle 5 by change speed gear box 4, and fan assembly 3 includes in air intake passage 2 There is the fan 31 of an inward-facing cylinder 12, the power transmission shaft of fan 31 connects a helical teeth break-in combination 6, and helical teeth break-in combination 6 includes The first helical gear 61 and the second helical gear 62, the first helical gear 61 and the second helical gear 62 is had to be mutually twisted, the first helical gear 61 Wheel shaft be fan 31 power transmission shaft, the power transmission shaft of fan 31 is to be vertically arranged, and the wheel shaft of the second helical gear 62 is horizontally disposed with, the The wheel shaft of two helical gears 62 stretches in change speed gear box 4, includes the first spur gear 41 being mutually twisted and the second straight-tooth in change speed gear box 4 Wheel 42, the wheel footpath of the first spur gear 41 is more than the wheel footpath of the second spur gear 42, and the wheel shaft of the first spur gear 41 stretches out change speed gear box 4 even Connect manual rocking handle 5, air intake passage 2 is provided with deflecting plate 22, deflecting plate 22 periphery and air intake passage 2 with the junction of inner barrel 12 Sealing cooperation, deflecting plate 22 is provided with the straight wind passage 22a running through up and down and crosswind passage 22b, straight wind passage 22a is arranged on The middle part of deflecting plate 22, crosswind passage 22b quantity is several, is evenly distributed on the plate heart of deflecting plate 22 plate to edges of boards edge On body, crosswind passage 22b bending setting, the beneath galleries connection air intake passage 2 of crosswind passage 22b, the passage of crosswind passage 22b Upper direction and vertical direction are formed with angle, and the channel upper bearing of trend of crosswind passage 22b is away from deflecting plate 22 The plate heart.
In embodiment, the inwall of inner barrel 12 is provided with multiple smooth bumps 12a, adjacent smooth bumps 12a are formed Recess seamlessly transit with smooth bumps 12a, recess is corresponding with the channel upper bearing of trend position of crosswind passage 22b, light Sliding projection 12a is to be removable installed in inner barrel 12.
In embodiment, air-dry machine main body 1 is provided with inlet flange 21 with the junction of air intake passage 2.
In embodiment, the wheel shaft of the first helical gear 61 is equipped with the first fixed mount 7, the first fixed mount 7 includes first Fixed block and the first steady arm, the wheel shaft of the first helical gear 61 is passed through the first fixed block and is rotatably coordinated with the first fixed block.
In embodiment, the wheel shaft of the second helical gear 62 is equipped with the second fixed mount 8, the second fixed mount 8 includes second Fixed block and the second steady arm, the wheel shaft of the second helical gear 62 is passed through the second fixed block and is rotatably coordinated with the second fixed block.
In embodiment, the wheel shaft of the first spur gear 41 stretches out the bearing being provided with change speed gear box 4 for reducing frictional force.
In embodiment, manual rocking handle 5 end bag is provided with anti-skid protecting cover 51.
In embodiment, the first helical gear 61, the second helical gear 62 are trapezoidal gear, two trapezoidal gears matching Inclined-plane is mutually twisted and is in transmission connection with the wheel shaft being vertically arranged so that being horizontally disposed with wheel shaft.
In embodiment, air-dry machine main body 1 top is provided with lid.
In embodiment, the quantity of crosswind passage 22b is four, the plate heart distance of each crosswind passage 22b and deflecting plate 22 Equal, it is laid on deflecting plate 22 radian such as four crosswind passage 22b.
The air-dry machine fan 31 of the present invention is driven and is not used electricity as the energy, is operated by the way of wind, when Shake manual rocking handle when, the first spur gear 41 drive the second spur gear 42 rotate, the second spur gear 42 drive the second helical gear and First helical gear rotate, first helical gear drive fan 31 rotate, produce wind, wind when deflecting plate 22, by straight wind passage The wind of 22a blows directly up, is blown by the wind direction side of crosswind passage 22b, and the wind blowing to side is flat through smooth bumps 12a Trackslip to blowing to, from side, the medicated clothing being placed on inner barrel.So, it is the formation of several air channels, from multiple directions to inner barrel In medicated clothing dried up, efficiency double because drying up, direction is various, the different piece of clothes can be subject to wind, air-dry imitate Fruit uniformly, present invention employs the spur gear differing in size a pair, i.e. the first spur gear 41 and the second spur gear 42, with rocking handle even The first spur gear 41 wheel footpath connecing is more than the wheel footpath of the second spur gear 42, can make 31 turns of fan so when handle turns around Above a few, improve efficiency.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although by ginseng According to the preferred embodiments of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can So that in the form and details it is made with various changes, the present invention being limited without departing from appended claims Spirit and scope.

Claims (9)

1. there is the air-dry machine of deflecting plate, including air-dry machine main body (1), described air-dry machine main body (1) includes shell body (11) With inner barrel (12), the bottom of described air-dry machine main body (1) is provided with air intake passage (2), described air intake passage (2) with interior Cylinder (12) bottom connects, and it is characterized in that: is provided with fan assembly (3) in described air intake passage (2), described fan assembly (3) it is connected with manual rocking handle (5) by change speed gear box (4), described fan assembly (3) includes the wind of an inward-facing cylinder (12) Fan (31), the power transmission shaft of described fan (31) connects helical teeth break-in combination (6), and described helical teeth break-in combination (6) includes There are the first helical gear (61) and the second helical gear (62), described the first helical gear (61) and the second helical gear (62) are mutually stung Close, the wheel shaft of described the first helical gear (61) is the power transmission shaft of fan (31), and the power transmission shaft of described fan (31) is vertical Setting, the wheel shaft of described the second helical gear (62) is horizontally disposed with, and the wheel shaft of described the second helical gear (62) stretches into change speed gear box (4), in, the first spur gear (41) being mutually twisted and the second spur gear (42) in described change speed gear box (4), are included, described The wheel footpath of the first spur gear (41) is more than the wheel footpath of the second spur gear (42), and the wheel shaft of described the first spur gear (41) stretches out change Fast case (4) connects manual rocking handle (5), and described air intake passage (2) is provided with deflecting plate (22) with the junction of inner barrel (12), Described deflecting plate (22) periphery and air intake passage (2) sealing cooperation, described deflecting plate (22) are provided with and run through up and down Straight wind passage (22a) and crosswind passage (22b), described straight wind passage (22a) is arranged on the middle part of deflecting plate (22), described Crosswind passage (22b) quantity is several, is evenly distributed on the plate heart of deflecting plate (22) plate body to edges of boards edge, described Crosswind passage (22b) bending setting, beneath galleries connection air intake passage (2) of crosswind passage (22b), crosswind passage (22b) Channel upper direction and vertical direction are formed with angle, and the channel upper bearing of trend of crosswind passage (22b) is away from steering The plate heart of plate (22);Multiple smooth bumps (12a) are provided with the described inwall of inner barrel (12), adjacent described smooth The recess that raised (12a) is formed is seamlessly transitted with smooth bumps (12a), on the passage of described recess and crosswind passage (22b) Portion bearing of trend position is corresponding, and described smooth bumps (12a) are to be removable installed in inner barrel (12).
2. the air-dry machine with deflecting plate according to claim 1, is characterized in that: described air-dry machine main body (1) with enter The junction of wind passage (2) is provided with inlet flange (21).
3. the air-dry machine with deflecting plate according to claim 2, is characterized in that: the wheel of described the first helical gear (61) First fixed mount (7) is equipped with axle, described the first fixed mount (7) includes the first fixed block and the first steady arm, described The wheel shaft of the first helical gear (61) pass through the first fixed block rotatably coordinating with the first fixed block.
4. the air-dry machine with deflecting plate according to claim 3, is characterized in that: the wheel of described the second helical gear (62) Second fixed mount (8) is equipped with axle, described the second fixed mount (8) includes the second fixed block and the second steady arm, described The wheel shaft of the second helical gear (62) pass through the second fixed block rotatably coordinating with the second fixed block.
5. the air-dry machine with deflecting plate according to claim 4, is characterized in that: the wheel of described the first spur gear (41) Shaft extension goes out change speed gear box (4) place and is provided with the bearing for reducing frictional force.
6. the air-dry machine with deflecting plate according to claim 5, is characterized in that: described manual rocking handle (5) end bag It is provided with anti-skid protecting cover (51).
7. the air-dry machine with deflecting plate according to claim 6, is characterized in that: described the first helical gear (61), Two helical gears (62) are trapezoidal gear, and the inclined-plane of two trapezoidal gears matching is mutually twisted so that being horizontally disposed with wheel shaft It is in transmission connection with the wheel shaft being vertically arranged.
8. the air-dry machine with deflecting plate according to claim 7, is characterized in that: described air-dry machine main body (1) top It is provided with lid.
9. the air-dry machine with deflecting plate according to claim 8, is characterized in that: the number of described crosswind passage (22b) Measure as four, the plate heart of each crosswind passage (22b) and deflecting plate (22) is apart from equal, the radian such as four crosswind passages (22b) Be laid on deflecting plate (22).
CN201410545343.6A 2014-10-15 2014-10-15 Air dryer with deflecting plate Active CN104264430B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410545343.6A CN104264430B (en) 2014-10-15 2014-10-15 Air dryer with deflecting plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410545343.6A CN104264430B (en) 2014-10-15 2014-10-15 Air dryer with deflecting plate

Publications (2)

Publication Number Publication Date
CN104264430A CN104264430A (en) 2015-01-07
CN104264430B true CN104264430B (en) 2017-01-25

Family

ID=52155994

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410545343.6A Active CN104264430B (en) 2014-10-15 2014-10-15 Air dryer with deflecting plate

Country Status (1)

Country Link
CN (1) CN104264430B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206800003U (en) * 2017-04-20 2017-12-26 广州视源电子科技股份有限公司 Clothing care machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2526342Y (en) * 2002-01-24 2002-12-18 王军 Cabinet for quickly drying and ironing clothes
CN102359012A (en) * 2011-09-05 2012-02-22 王学博 Rapid clothes dryer
CN203285699U (en) * 2013-06-07 2013-11-13 宋春芳 Hand-driven fan
CN204174452U (en) * 2014-10-15 2015-02-25 金陵科技学院 There is the air-dry machine of deflecting plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2526342Y (en) * 2002-01-24 2002-12-18 王军 Cabinet for quickly drying and ironing clothes
CN102359012A (en) * 2011-09-05 2012-02-22 王学博 Rapid clothes dryer
CN203285699U (en) * 2013-06-07 2013-11-13 宋春芳 Hand-driven fan
CN204174452U (en) * 2014-10-15 2015-02-25 金陵科技学院 There is the air-dry machine of deflecting plate

Also Published As

Publication number Publication date
CN104264430A (en) 2015-01-07

Similar Documents

Publication Publication Date Title
CN205659917U (en) Take draw gear's cable conductor cleaning and drying device
CN104264430B (en) Air dryer with deflecting plate
CN206392534U (en) A kind of 200L metal buckets cleaning equipment
CN206989640U (en) A kind of drying unit for Green Tea Processing
CN103850083B (en) The method for washing shoe and laundry for washing footwear all-in-one wash footwear all-in-one
CN203034252U (en) Clothes and shoe washing all-in-one machine
CN204174452U (en) There is the air-dry machine of deflecting plate
CN105823312B (en) Drier for medicinal materials in pharmacy procedure
CN209211110U (en) A kind of cloth equipment for steam treatment
CN208151722U (en) A kind of air channel barrier and air channel conversion device of air channel conversion device
CN207556147U (en) Gardens coordinated type seed drying device
CN203508464U (en) Hopper cleaning chamber with vertical spraying and inverted inserting type rotary rack
CN204174451U (en) Multiple duct air-dry machine
CN206143352U (en) Cocoon cooking cage
CN104294521A (en) Vertical bucket washing machine
CN107675427A (en) A kind of washing machine structure of APP remote controls
CN204224888U (en) Air-dry machine
CN204898294U (en) Rotation type printing device is used in weaving
CN204610208U (en) A kind of flow controllable rotates diaphragm pump
CN104294565A (en) Air dryer with multiple air flues
CN204251885U (en) A kind of column washing machine
CN207188332U (en) A kind of radix pseudostellariae drum-type cleaning drying integral machine
CN204224886U (en) Biparting break-in hair-dryer
CN204530219U (en) Body building cycle washing machine
CN204224889U (en) manual blowing device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant