CN109184413B - Window closing and indoor ventilation device and method utilizing rainwater potential energy in downpipe - Google Patents

Window closing and indoor ventilation device and method utilizing rainwater potential energy in downpipe Download PDF

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Publication number
CN109184413B
CN109184413B CN201810960836.4A CN201810960836A CN109184413B CN 109184413 B CN109184413 B CN 109184413B CN 201810960836 A CN201810960836 A CN 201810960836A CN 109184413 B CN109184413 B CN 109184413B
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CN
China
Prior art keywords
bevel gear
gear
rod
window
downpipe
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Application number
CN201810960836.4A
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Chinese (zh)
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CN109184413A (en
Inventor
李慧珍
谢德强
孔庆杰
吴倩
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Hohai University Changzhou Campus
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Hohai University Changzhou Campus
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Priority to CN201810960836.4A priority Critical patent/CN109184413B/en
Publication of CN109184413A publication Critical patent/CN109184413A/en
Application granted granted Critical
Publication of CN109184413B publication Critical patent/CN109184413B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0019Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/0023Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets, or pads having plane surfaces, i.e. axial filtering
    • B01D46/12Particle separators, e.g. dust precipitators, using filter plates, sheets, or pads having plane surfaces, i.e. axial filtering in multiple arrangements
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00Suspension arrangements for wings
    • E05D15/06Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E05D15/0621Details, e.g. suspension or supporting guides
    • E05D15/0626Details, e.g. suspension or supporting guides for wings suspended at the top
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/70Power-operated mechanisms for wings with automatic actuation
    • E05F15/71Power-operated mechanisms for wings with automatic actuation responsive to temperature changes, rain, wind or noise
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/04Frames for doors, windows, or the like to be fixed in openings
    • E06B1/36Frames uniquely adapted for windows
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/42Sliding wings; Details of frames with respect to guiding
    • E06B3/46Horizontally-sliding wings
    • E06B3/4609Horizontally-sliding wings for windows
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00Special arrangements or measures in connection with doors or windows
    • E06B7/02Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/04Units comprising pumps and their driving means the pump being fluid-driven
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/04Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/08Down pipes; Special clamping means therefor
    • E04D2013/086Filters
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/40Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/43Motors
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/60Suspension or transmission members; Accessories therefore
    • E05Y2201/622Suspension or transmission members elements
    • E05Y2201/696Screw mechanisms
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/60Suspension or transmission members; Accessories therefore
    • E05Y2201/622Suspension or transmission members elements
    • E05Y2201/71Toothed gearing
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00Special arrangements or measures in connection with doors or windows
    • E06B7/02Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B2007/023Air flow induced by fan

Abstract

The invention discloses a window closing and indoor ventilation device and method utilizing rainwater potential energy in a downpipe. The downpipe water collecting device collects and stores rainwater from a roof or an upper section downpipe, the transmission device converts gravitational potential energy of the rainwater into mechanical energy, and the mechanical energy is utilized to realize window closing and indoor ventilation. The invention utilizes the potential energy of the rainwater to automatically close the window in the rainy period, prevents the rainwater from entering the room to cause property loss, simultaneously realizes indoor ventilation after the window is closed, and improves the indoor air quality in rainy days. The rainwater is used as a power source, is clean and environment-friendly, does not consume extra energy, does not occupy indoor space, has wide application range, and is suitable for residential districts and office buildings.

Description

Window closing and indoor ventilation device and method utilizing rainwater potential energy in downpipe
Technical Field
The invention relates to a window closing and indoor ventilation device and method utilizing rainwater potential energy in a downpipe, and belongs to the technical field of machinery.
Background
In daily work and life, the downpipe is a basic component which must be installed in building construction, and is usually installed at the corners around the whole building, and the downpipe is used for guiding rainwater on the roof into underground pipelines when raining, so that a series of problems of leakage of the building and the like caused by the fact that rainwater is accumulated on the roof for a long time are prevented.
For coastal cities or summer plum rain seasons, the condition of sudden change of weather is common, and a family household cannot get home to close a window in working hours, so that the floor or articles at home are soaked by rainwater, and economic loss is caused; meanwhile, outdoor air is fresh in rainy days, indoor air quality is poor, however, potential energy of rainwater flowing through the downpipe is not fully utilized and generally directly flows to the ground or underground pipelines, and therefore, the problem of improving indoor air quality on the premise of not consuming external energy in rainy days is a difficult problem in the aspects of energy conservation and environmental protection.
Disclosure of Invention
The invention aims to solve the problems that the window is forgotten to be closed in rainy days and the indoor air quality is improved in rainy days, converts the kinetic energy of rainwater into mechanical energy, automatically closes the window by mechanical transmission and exchanges indoor and outdoor air to obtain fresh air indoors.
The technical scheme of the invention is as follows:
a window closing and indoor ventilation device utilizing rainwater potential energy in a downpipe comprises a downpipe water collecting device, a transmission device, a gear shifting device, a ventilation device, a filtering device and a suspension type window; the downpipe water collecting device stores a certain amount of rainwater, the transmission device converts the gravitational potential energy of the rainwater into mechanical energy, the mechanical energy is utilized to realize the opening and closing of a suspended window through the gear shifting device and the indoor ventilation by operating the ventilation device, and the filtering device is arranged in the ventilation device;
the downpipe water collecting device comprises a downpipe, a filter screen, a water collector and a dirt taking port; a filter screen is arranged at the top end of the downpipe, a dirt taking opening is formed in the pipe wall of the downpipe above the filter screen, and a water collector is arranged below the filter screen; the water collector is in an inverted cone shape and is positioned below the filter screen, a hole is formed in the bottom of the water collector, a water outlet plug is arranged at the bottom of the water collector, the water outlet plug is connected with an upper floating ball through a nylon wire, and an observation port is formed in the pipe wall above the water collector;
the suspension type window comprises a guide rail, a suspension frame, a first roller, a second roller, a window frame, glass and a lower window frame; an upper slideway and a lower slideway are arranged on the upper edge and the lower edge of the window frame, concave rails are arranged on two sides below the guide rail and located at the upper slideway, two suspension frames are fixed on the window frame through a first screw and a second screw, a first roller and a second roller are respectively arranged at the tail ends of the suspension frames and can roll in the concave rails, glass is arranged in the middle of the window frame, and a lower window frame is arranged at the bottom of the window frame;
the transmission device comprises an impeller, a rotating shaft, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a sixth bevel gear, a protective shell, a vertical shaft, a crown gear, a first straight gear, a second straight gear, a third straight gear, a first transmission shaft, a second transmission shaft, a third transmission shaft, a fourth transmission shaft, a seventh bevel gear, an eighth bevel gear, a ninth bevel gear, a tenth bevel gear, an eleventh bevel gear, a first support, a second support, a third support, a fourth support, a first lead screw, a second lead screw, a first sliding block and a second sliding block; the impeller is positioned below the hole of the water collector and fixed at one end of a rotating shaft, the rotating shaft vertically penetrates through the pipe wall of the downpipe, a first bevel gear is arranged at the other end of the rotating shaft, the first bevel gear and a second bevel gear are meshed with each other and are installed in a protective shell, the protective shell is fixed on a right-angle wall, one end of a vertical shaft is connected with a second bevel gear in the protective shell, the other end of the vertical shaft is connected with a crown gear, the first straight gear is meshed with the crown gear, and a first transmission shaft is connected with a seventh bevel gear with two; the straight gear is positioned at the right end of the transmission shaft, the first support and the second support are respectively fixed at two ends of the first transmission shaft, the first transmission shaft is fixed to be parallel to a lower slideway of the suspended window, the second straight gear is three-phase meshed with the straight gear on the second transmission shaft, the third bevel gear and the sixth bevel gear are arranged at two ends of the second transmission shaft, and the two bevel gears are placed in the same mode; the third bevel gear and the sixth bevel gear are respectively meshed with the fourth bevel gear and the fifth bevel gear on the fourth transmission shaft and the third transmission shaft, the third support and the fourth support for the dual-purpose transmission shaft are fixed, the first sliding block and the second sliding block are distributed in the lower window frame in a halving manner, the first lead screw penetrates through the first sliding block, the second lead screw penetrates through the second sliding block, one end of the first lead screw is fixed on the lower window frame, the end tail of the other end of the first lead screw is provided with an eighth bevel gear and a ninth bevel gear, the two small ends of the eighth lead screw are opposite, one end of the second lead screw is fixed on the lower window frame, the end tail of the other end of the second;
the gear shifting device comprises a fifth support, a third sliding block, a first spring, a second spring, a first metal sheet, a second metal sheet, a first connecting rod, a second connecting rod and a limiting block, wherein the third sliding block is fixed on a first transmission shaft provided with a first straight gear, a cavity is respectively arranged at the left part and the right part in the third sliding block, the first spring and the second spring are arranged in the cavity, the first connecting rod is of a three-connecting-rod structure, the two ends of the first connecting rod are horizontally parallel, the middle section of the first connecting rod is fixed on a vertical wall at the left side through the fifth support, the tail end of the upper horizontal section of the first connecting rod penetrates through a vertical part of a door and window frame and is provided with the first metal sheet, the second connecting rod is of a three-connecting-rod structure, the two ends of the two connecting rods are horizontally parallel, the second spring is connected with the lower horizontal section of the second connecting rod at the right side, when the bevel gear seven is meshed with the bevel gear eight and the bevel gear eleven on the left side, the forward gear is adopted; when the bevel gear seven is meshed with the bevel gear nine and the bevel gear ten on the right side, the reverse gear is adopted; when the bevel gear seven is not meshed with any gear, the gear is neutral;
the ventilating device comprises a first turbofan, a second turbofan, a first shell, a second shell, a first air distribution ring, a second air distribution ring, a third connecting rod and fan blades, wherein the first turbofan is connected with one end of a transmission shaft IV, the second turbofan is connected with one end of the transmission shaft III, the first turbofan and the second turbofan are fixed by a fixing support for fixing a turbine shaft, the first shell and the second shell are rectangular thin-walled frames, two air inlets are formed for air inlet, one air inlet is formed in the bottom of the rear ends of the first shell and the second shell and is rectangular and formed by a plurality of holes, the outer side of the first shell is higher than a window platform by a certain distance, the other air inlet is located at the rear ends of the first air distribution ring and the second air distribution ring, a through hole is formed in the middle of the first air distribution ring and the second air distribution ring, indoor air and outdoor air are connected, the three layers are thin-walled, and the, An opening is arranged at the position of a second turbofan for ventilation, a cavity is formed between the second layer and the first layer, the front end and the rear end of the second layer and the first layer are arranged in a closed mode, the third layer is tightly connected with the rear end of the second layer, a first air distribution ring and a second air distribution ring are tightly connected with a first shell and a second shell, the front ends of the first air distribution ring and the second air distribution ring are air outlets, fan blades are arranged at the front ends of the first air distribution ring and the second air distribution ring, a horizontally placed cylinder is arranged at the upper ends of the fan blades, the inner portion of the cylinder penetrates through a third connecting rod, the two ends of the cylinder are fixed through hinges, when wind passes through, the fan blades are opened, and when the wind;
the filter device comprises a fine filter screen, an HEPA filter screen, a PP cotton net body and an active carbon filter screen, the fine filter screen is arranged on the outer side of a through hole chamber in the middle of a first gas distribution ring and a second gas distribution ring, the filter screen close to the first gas distribution ring and the second gas distribution ring is the fine filter screen of a first layer, the HEPA filter screen is arranged on an outward second layer in sequence, the PP cotton net body is arranged on a third layer, and the active carbon filter screen is arranged on a fourth layer.
And another group of water collectors and impellers are arranged below the impellers in the downpipe, and each group of water collectors and impellers corresponds to one floor.
The first sliding block and the second sliding block in the cavity of the lower window frame are cuboid, and when the first sliding block and the second sliding block are pushed to the lower window frame, the window is driven to move left and right.
A window closing method utilizing rainwater potential energy in a downpipe utilizes the device, and comprises the following steps:
1. in the initial state, the suspension type window is in an open state, the window frame presses the second metal sheet of the first connecting rod on the right side, the first connecting rod is stressed to rotate around the fulcrum, so that the third sliding block moves leftwards, the seventh bevel gear with two large ends combined together moves leftwards, the eighth bevel gear on the left side is meshed with the eleventh bevel gear, and the forward gear is arranged at the moment;
2. in rainy days: rainwater is accumulated in a downpipe water collector during raining, when the rainwater collected in the water collector reaches a certain depth, a floating ball is pulled out of a water plug, the rainwater flows down from a hole and impacts blades of an impeller to rotate, the blades rotate to drive a rotating shaft and a transmission shaft outside a window to transmit, a crown gear is meshed with a straight gear to rotate, two bevel gears with big ends combined together are driven to rotate around a seven-axis shaft, a screw rod I and a screw rod II rotate to enable a sliding block I and a sliding block II to move towards two sides, and the sliding block I and the sliding block II move in a cuboid cavity of a lower window frame to drive the window to move towards the left side and the right side;
3. when the window is closed tightly: when the sliding block II drives the window to be pushed to the left side and closed, the metal sheet I of the connecting rod II on the left side is pressed, the connecting rod II is stressed to rotate around the support, the seven shafts of the bevel gears with the two large ends combined together are stressed to move rightwards, the seven shafts of the bevel gears are meshed with the bevel gear nine and the bevel gear ten on the right side, and the reverse gear is formed; the second sliding block moves towards the middle of the window in the cavity until the second sliding block reaches a limiting block;
4. when the slide block resets: when the bevel gear seven is in a reverse gear, the first screw rod and the second screw rod rotate to enable the first sliding block and the second sliding block to move towards the middle position of the downward slideway, when the first sliding block and the second sliding block move to the position of the limiting block, the second metal sheet on the right side is pressed, the elastic coefficient of the second spring on the right side in the third sliding block is large, although the moment of the connecting rod on the right side is small, the force of the second connecting rod on the left side and the force of the first spring on the left side can be balanced, the bevel gear seven with two large ends.
When two bevel gears seven with large ends combined together are in a neutral gear, namely a ventilation gear, a straight gear II and a straight gear III are meshed, a transmission shaft II starts to rotate, the straight gear III is meshed with a bevel gear IV, and the bevel gear V is meshed with a bevel gear VI to carry out transmission, so that a turbine fan I and a turbine fan II are respectively driven to realize ventilation.
The invention achieves the following beneficial effects:
the invention utilizes the potential energy of rainwater to realize ventilation after closing the window in the rainy period, the filtering device can remove haze so as to ensure that fresh air is obtained indoors, the rainwater is used as a power source for cleaning and environmental protection, no extra energy is consumed, air exchange can be realized after closing the window, the condition of indoor air tightness in rainy days is improved, people can breathe fresh air, the indoor space is not occupied, the application range is wide, and the invention is suitable for residential quarters, office buildings and the like.
Drawings
FIG. 1 is a schematic overall view;
FIG. 2 is a downpipe water collection device;
FIG. 3 is a schematic view of a transmission configuration;
FIG. 4 is a schematic view of a window;
FIG. 5 is a schematic view of the shifting apparatus;
FIG. 6 is a top view of the glidepath;
FIG. 7 is a schematic view of a venting arrangement;
FIG. 8 is a schematic view of a filter arrangement;
fig. 9 is a schematic view of a louver structure.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, a window closing and indoor ventilating device using potential energy of rainwater in a downpipe, the device includes a downpipe water collecting device, a transmission device, a gear shifting device, a ventilating device, a filtering device, and a suspended window; the downpipe water collecting device stores a certain amount of rainwater, the transmission device converts gravitational potential energy of the rainwater into mechanical energy, the mechanical energy is utilized to realize opening and closing of a suspended window through the gear shifting device and indoor ventilation through operating the ventilation device, and the filtering device is arranged in the ventilation device.
As shown in fig. 2, the downpipe water collecting device comprises a downpipe 1, a filter screen 1-5, a water collector 1-6 and a dirt taking port 1-1; the top end of the downpipe 1 is provided with a filter screen 1-5, the pipe wall of the downpipe 1 above the filter screen 1-5 is provided with a dirt taking port 1-1, and a water collector 1-6 is arranged below the filter screen 1-5; the water collector 1-6 is in an inverted cone shape and is positioned below the filter screen 1-5, the bottom of the water collector 1-6 is provided with a hole and a water outlet plug 1-9, and the water outlet plug 1-9 is connected with an upper floating ball 1-7 through a nylon wire.
As shown in FIG. 4, the suspended type window comprises a guide rail 10-1, a suspension frame 10-5, a first roller 10-2, a second roller 10-3, a window frame 10-4, glass 10 and a lower window frame 9; an upper slideway and a lower slideway are arranged on the upper edge and the lower edge of the window frame 10-4, concave rails are arranged on two sides below the guide rail 10-1 and located at the upper slideway, two suspension frames 10-5 are fixed on the window frame 10-4 through a first screw 10-6 and a second screw 10-7, a first roller 10-2 and a second roller 10-3 are respectively arranged at the tail ends of the suspension frames 10-5 and can roll in the concave rails, glass 10 is arranged in the middle of the window frame 10-4, and a lower window frame 9 is arranged at the bottom of the window frame 10-4.
As shown in figure 3, the transmission device comprises impellers 1-10, a rotating shaft 1-3, bevel gears I2-1, bevel gears II 2-2, bevel gears III 4-1, bevel gears IV 4-2, bevel gears V6-1, bevel gears VI 6-2, a protective shell 2, a vertical shaft 2-3, crown gears 3-1, straight gears I3-2, straight gears II 5-1, straight gears III 5-2, transmission shafts I3-3, transmission shafts II 4-3, transmission shafts III 6-3, transmission shafts IV 7-4, bevel gears VII 3-4, bevel gears VIII 9-3, bevel gears VII 9-4, bevel gears VII 9-7, bevel gears VII 9-8, supports I3-5, supports II 3-6, supports III 4-4, bevel gears VII, 4-5 parts of a support IV, 9-1 parts of a first screw rod, 9-5 parts of a second screw rod, 9-2 parts of a first sliding block and 9-6 parts of a second sliding block; the impeller 1-10 is positioned below a hole of the water collector 1-6 and fixed at one end of a rotating shaft 1-3, the rotating shaft 1-3 vertically penetrates through the pipe wall of the downpipe 1, a bevel gear I2-1 is arranged at the other end of the rotating shaft 1-3, the bevel gear I2-1 is meshed with a bevel gear II 2-2 and installed in a protective shell 2, the protective shell 2 is fixed on a right-angle wall, one end of a vertical shaft 2-3 is connected with the bevel gear II 2-2 in the protective shell, the other end of the vertical shaft is connected with a crown gear 3-1, the straight gear I3-2 is meshed with the crown gear 3-1, and a transmission shaft I3-3 is connected with a bevel gear VII 3-4 with two large ends combined together; a straight gear 5-1 is positioned at the right end of a transmission shaft 3-3, a first support 3-5 and a second support 3-6 are respectively fixed at two ends of the first transmission shaft 3-3, the first transmission shaft 3-3 is fixed to be parallel to a lower slideway of a suspended window, the second straight gear 5-1 is meshed with a third straight gear 5-2 on a second transmission shaft 4-3, two ends of the second transmission shaft 4-3 are provided with a third bevel gear 4-1 and a sixth bevel gear 6-2, and the two bevel gears are placed in the same way; the bevel gear III 4-1 and the bevel gear VI 6-2 are respectively meshed with the bevel gear IV 4-2 and the bevel gear V6-1 on the transmission shaft IV 7-4 and the transmission shaft IV 6-3, the transmission shaft II 4-3 is fixed by the bracket III 4-4 and the bracket IV 4-5, the sliding block I9-2 and the sliding block II 9-6 are distributed in the lower window frame 9, the screw rod I9-1 penetrates through the sliding block I9-2, the screw rod II 9-5 penetrates through the sliding block II 9-6, one end of the screw rod I9-1 is fixed on the lower window frame 9, the end of the other end is provided with two bevel gear eight 9-3 and bevel gear nine 9-4 with opposite small ends, one end of the screw rod II 9-5 is fixed on the lower window frame 9, and the end of the other end is provided with two bevel gear ten 9-7 and bevel gear ten with opposite small ends, Eleven bevel gears 9-8;
as shown in fig. 5 and 6, the gear shifting device comprises a support five 3-14, a slide block three 3-7, a spring one 3-8, a spring two 3-9, a metal sheet one 3-12, a metal sheet two 3-13, a connecting rod one 3-10, a connecting rod two 3-11 and a limiting block 3-15, wherein the slide block three 3-7 is fixed on a transmission shaft one 3-3 provided with a spur gear one 3-2, a cavity is respectively arranged at the left and right inside the slide block three 3-7, the spring one 3-8 and the spring two 3-9 are arranged in the cavity, the connecting rod one 3-10 is of a three-connecting-rod structure, two ends of the connecting rod one are horizontally parallel, the spring one 3-8 is connected with the lower horizontal section of the connecting rod one 3-10 at the left side, the middle section of the connecting rod one 3-10 is fixed on the wall vertical to the, the tail end of an upper horizontal section of the first connecting rod 3-10 penetrates through a vertical part of the door and window frame and is provided with a first metal sheet 3-12, the second connecting rod 3-11 is of a three-connecting-rod structure, two ends of the second connecting rod are horizontally parallel, the second spring 3-9 is connected with a lower horizontal section of the second connecting rod 3-11 on the right side, the vertical part of the second connecting rod 3-11 is fixed on a lower slideway of the suspension type window, the tail end of an upper horizontal section of the second connecting rod 3-11 penetrates through a limiting block 3-15 and is provided with a second metal sheet 3-13 at the same time, and when a bevel gear seven 3-4 is meshed with a bevel gear eight 9-3 on the; when the bevel gear seven 3-4 is meshed with the bevel gear nine 9-4 and the bevel gear ten 9-7 on the right side, the reverse gear is adopted; when the bevel gears seven 3-4 are not meshed with any gear, the gear is neutral;
as shown in fig. 3, 7 and 9, the ventilation device comprises a first turbofan 7-1, a second turbofan 8-1, a first casing 7-2, a second casing 8-2, a first air distribution ring 7-5, a second air distribution ring 8-4, a third connecting rod 7-10 and fan blades 7-11, wherein the first turbofan 7-1 is connected with one end of a fourth transmission shaft 7-4, the second turbofan 8-1 is connected with one end of a third transmission shaft 6-3, the first turbofan 7-1 and the second turbofan 8-1 are fixed by a fixing bracket for fixing a turbine shaft, the first casing 7-2 and the second casing 8-2 are rectangular thin-wall frames, two air inlets 7-3 are arranged for air inlet, one air inlet is arranged at the bottom of the rear ends of the first casing 7-2 and the second casing 8-2, the air distribution ring I7-5 and the air distribution ring II 8-4 are provided with through holes in the middle and are connected with indoor and outdoor air, the air distribution ring I7-5 and the air distribution ring II 8-4 comprise three layers which are thin-walled, the first layer is provided with an opening at the position close to the first turbofan 7-1 and the second turbofan 8-1 for ventilation, a cavity is arranged between the second layer and the first layer, the second layer and the front end and the rear end of the first layer are sealed, the third layer is tightly connected with the rear end of the second layer, the first air distribution ring I7-5 and the second air distribution ring II 8-4 are tightly connected with the first casing 7-2 and the second casing 8-2, and the front ends of the first air distribution ring I7-5 and the second air distribution ring II 8-4 are air outlets, the front ends of the fan blades are provided with fan blades 7-11, the upper ends of the fan blades 7-11 are provided with horizontal placement cylinders, the insides of the fan blades are penetrated by connecting rods three 7-10, the two ends of the fan blades are fixed by hinges, when wind passes through the fan blades 7-11, the fan blades 7-11 are opened, and when no wind passes through the fan blades 7-11, the fan blades 7-11 are closed by dead weight;
as shown in fig. 8, the filtering device comprises fine filtering screens 7-9, HEPA filtering screens 7-8, PP cotton screen bodies 7-7 and activated carbon filtering screens 7-6, which are arranged at the outer sides of the through hole chambers in the middle of the first gas distribution ring 7-5 and the second gas distribution ring 8-4, wherein the filtering screens close to the first gas distribution ring 7-5 and the second gas distribution ring 8-4 are the fine filtering screens 7-9 of a first layer, the HEPA filtering screens 7-8 are arranged on a second layer outwards in sequence, the PP cotton screen bodies 7-7 are arranged on a third layer, and the activated carbon filtering screens 7-6 are arranged on a fourth layer.
As shown in figure 1, the pipe wall above the water collector 1-6 is provided with an observation port 1-4, and the pipe wall above the impeller 1-10 is also provided with an observation window 1-2.
As shown in fig. 1, another group of water collectors and impellers are arranged below the impellers 1-10 in the downpipe 1, and each group of water collectors and impellers corresponds to one floor.
The first sliding block 9-2 and the second sliding block 9-6 in the cavity of the lower window frame 9 are cuboid, and when the first sliding block 9-2 and the second sliding block 9-6 are pushed to the lower window frame, the window is driven to move left and right.
A method for closing a window by utilizing the potential energy of rain in a downpipe, as shown in fig. 5, comprises the following steps:
1. in the initial state, the suspended type window is in an open state, the window frame 10-4 presses the metal sheet II 3-13 of the connecting rod I3-10 on the right side, the connecting rod I3-10 is stressed to rotate around a fulcrum, so that the sliding block III 3-7 moves leftwards, the bevel gear seven with two large ends combined together moves leftwards along the axial direction 3-4, and is meshed with the bevel gear eight 9-3 on the left side and the bevel gear eleven 9-8, and the front gear is formed;
2. in rainy days: when raining, rainwater is accumulated in the downpipe water collectors 1-6, when the rainwater collected in the water collectors 1-6 reaches a certain depth, the upper floating balls 1-7 pull up the water outlet plugs 1-9, the rainwater flows down from the holes, the blades of the impeller 1-10 are impacted to rotate, the rotating shafts 1-3 and the transmission shafts I3-3 outside the window are driven to rotate by the rotation of the blades, the crown gears 3-1 and the spur gears I3-2 are meshed to rotate to drive the bevel gears seven with the big ends combined together to rotate by the shafts 3-4, the screw rods I9-1 and the screw rods II 9-5 rotate to enable the sliding blocks I9-2 and the sliding blocks II 9-6 to move towards two sides, and the sliding blocks I9-2 and the sliding blocks II 9-6 move in a cuboid cavity of the lower window frame 9 to drive the window to move towards the left side and the right side;
3. when the window is closed tightly: when the sliding block II 9-6 drives the window to be pushed to the left side and closed, the metal sheet I3-12 of the connecting rod II 3-11 on the left side is pressed, the connecting rod II 3-11 rotates around the support under stress, the bevel gear seven 3-4 with two big ends combined together is stressed to move rightwards, and is meshed with the bevel gear nine 9-4 and the bevel gear ten 9-7 on the right side, and the reverse gear is adopted; the second sliding block 9-6 moves towards the middle of the window in the cavity until reaching the limiting block 3-15;
4. when the slide block resets: when the transmission gear is in a reverse gear, the first screw rod 9-1 and the second screw rod 9-5 rotate to enable the first sliding block 9-2 and the second sliding block 9-6 to move towards the middle position of the downward slide way, when the transmission gear moves to the position of the limiting block 3-15, the second metal sheet 3-13 on the right side is pressed, the second spring 3-9 on the right side in the third sliding block 3-7 is large in elastic coefficient, although the first connecting rod 3-10 on the right side is small in moment, the force of the second connecting rod 3-11 on the left side and the force of the first spring 3-8 on the left side can be balanced, and the bevel gear seven 3-4 with two large ends combined together is not meshed.
When two bevel gears seven 3-4 with large ends combined together are in neutral gear, namely a ventilation gear, a straight gear two 5-1 and a straight gear three 5-2 start to be meshed, a transmission shaft two 4-3 starts to rotate, a bevel gear three 4-1 is meshed with a bevel gear four 4-2, a bevel gear five 6-1 is meshed with a bevel gear six 6-2 to be transmitted, and a turbofan I7-1 and a turbofan II 8-1 are respectively driven to realize ventilation.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides an utilize window of rainwater potential energy to close and indoor ventilation unit in pipe in the water, its characterized in that: the device comprises a downpipe water collecting device, a transmission device, a gear shifting device, a ventilation device, a filtering device and a suspended window; the downpipe water collecting device stores a certain amount of rainwater, the transmission device converts the gravitational potential energy of the rainwater into mechanical energy, the mechanical energy is utilized to realize the opening and closing of a suspended window through the gear shifting device and the indoor ventilation by operating the ventilation device, and the filtering device is arranged in the ventilation device;
the downpipe water collecting device comprises a downpipe (1), a filter screen (1-5), a water collector (1-6) and a dirt taking port (1-1); a filter screen (1-5) is arranged at the top end of the downpipe (1), a dirt taking opening (1-1) is formed in the pipe wall of the downpipe (1) above the filter screen (1-5), and a water collector (1-6) is arranged below the filter screen (1-5); the water collector (1-6) is in an inverted cone shape and is positioned below the filter screen (1-5), the bottom of the water collector (1-6) is provided with a hole and is provided with a water outlet plug (1-9), the water outlet plug (1-9) is connected with an upper floating ball (1-7) through a nylon wire, and the pipe wall above the water collector (1-6) is provided with an observation port (1-4);
the suspension type window comprises a guide rail (10-1), a suspension frame (10-5), a first roller (10-2), a second roller (10-3), a window frame (10-4), glass (10) and a lower window frame (9); an upper slideway and a lower slideway are arranged on the upper edge and the lower edge of the window frame (10-4), concave rails are arranged on two sides below the guide rail (10-1) and located at the upper slideway, two suspension frames (10-5) are fixed on the window frame (10-4) through a first screw (10-6) and a second screw (10-7), a first roller (10-2) and a second roller (10-3) are respectively arranged at the tail ends of the suspension frames (10-5) and can roll in the concave rails, glass (10) is arranged in the middle of the window frame (10-4), and a lower window frame (9) is arranged at the bottom of the window frame (10-4);
the transmission device comprises impellers (1-10), a rotating shaft (1-3), a bevel gear I (2-1), a bevel gear II (2-2), a bevel gear III (4-1), a bevel gear IV (4-2), a bevel gear V (6-1), a bevel gear VI (6-2), a protective shell (2), a vertical shaft (2-3), a crown gear (3-1), a straight gear I (3-2), a straight gear II (5-1), a straight gear III (5-2), a transmission shaft I (3-3), a transmission shaft II (4-3), a transmission shaft III (6-3), a transmission shaft IV (7-4), a bevel gear VII (3-4), a bevel gear VIII (9-3), a bevel gear IX (9-4), a bevel gear XI (9-7), Eleven bevel gear (9-8), a first support (3-5), a second support (3-6), a third support (4-4), a fourth support (4-5), a first lead screw (9-1), a second lead screw (9-5), a first sliding block (9-2) and a second sliding block (9-6); the impeller (1-10) is positioned below the hole of the water collector (1-6) and fixed at one end of the rotating shaft (1-3), the rotating shaft (1-3) vertically penetrates through the pipe wall of the downpipe (1), a bevel gear I (2-1) is arranged at the other end of the rotating shaft (1-3), the bevel gear I (2-1) and the bevel gear II (2-2) are mutually meshed and are arranged in the protective shell (2), the protective shell (2) is fixed on a right-angle wall, one end of the vertical shaft (2-3) is connected with a bevel gear II (2-2) in the protective shell, the other end is connected with a crown gear (3-1), the first straight gear (3-2) is meshed with the crown gear (3-1), and the first transmission shaft (3-3) is connected with a seventh bevel gear (3-4) with two large ends combined together; a second straight gear (5-1) is positioned at the right end of the first transmission shaft (3-3), the first support (3-5) and the second support (3-6) are respectively fixed at two ends of the first transmission shaft (3-3), the first transmission shaft (3-3) is fixed to be parallel to a lower slideway of a suspended window, the second straight gear (5-1) is meshed with a third straight gear (5-2) on the second transmission shaft (4-3), two ends of the second transmission shaft (4-3) are provided with a third bevel gear (4-1) and a sixth bevel gear (6-2), and the two bevel gears are placed in the same mode; the bevel gear III (4-1) and the bevel gear VI (6-2) are respectively meshed with the bevel gear IV (4-2) and the bevel gear V (6-1) on the transmission shaft IV (7-4) and the transmission shaft III (6-3), the transmission shaft II (4-3) is fixed by the bracket III (4-4) and the bracket IV (4-5), the slide block I (9-2) and the slide block II (9-6) are distributed in the lower window frame (9), the lead screw I (9-1) penetrates through the slide block I (9-2), the lead screw II (9-5) penetrates through the slide block II (9-6), one end of the lead screw I (9-1) is fixed on the lower window frame (9), and the end of the other end is provided with two bevel gear eight (9-3) and bevel gear nine (9-4) with opposite small ends, one end of the second screw rod (9-5) is fixed on the lower window frame (9), the tail end of the other end of the second screw rod is provided with two bevel gears ten (9-7) and eleven (9-8) with opposite small ends, and the pipe wall above the impeller (1-10) is also provided with an observation window (1-2);
the gear shifting device comprises a support fifth (3-14), a sliding block third (3-7), a spring first (3-8), a spring second (3-9), a metal sheet first (3-12), a metal sheet second (3-13), a connecting rod first (3-10), a connecting rod second (3-11) and limiting blocks (3-15), wherein the sliding block third (3-7) is fixed on the transmission shaft first (3-3) provided with a straight gear first (3-2), a cavity is respectively formed in the left and right of the inner part of the sliding block third (3-7), the spring first (3-8) and the spring second (3-9) are arranged in the cavity, the connecting rod first (3-10) is of a three-connecting-rod structure, two ends of the connecting rod first (3-10) are horizontally parallel, the spring first (3-8) is connected with a lower horizontal section of the connecting rod first (3, the middle section of the first connecting rod (3-10) is fixed on a left vertical wall through a fifth support (3-14), the tail end of an upper horizontal section of the first connecting rod (3-10) penetrates through a vertical part of a door and window frame and is provided with a first metal sheet (3-12), the second connecting rod (3-11) is of a three-connecting-rod structure, two ends of the two connecting rod are horizontally parallel, a second spring (3-9) is connected with a lower horizontal section of the second connecting rod (3-11) on the right side, the vertical part of the second connecting rod (3-11) is fixed on a lower slideway of a suspended type window, the tail end of the upper horizontal section of the second connecting rod (3-11) penetrates through a limiting block (3-15) and is provided with a second metal sheet (3-13), and when a seventh bevel gear (3-4) is meshed with an eighth bevel gear (9-3), is a forward gear; when the bevel gear seven (3-4), the bevel gear nine (9-4) on the right side and the bevel gear ten (9-7) are meshed together, a reverse gear is adopted; when the bevel gear seven (3-4) is not meshed with any gear, the gear is neutral;
the ventilating device comprises a first turbofan (7-1), a second turbofan (8-1), a first shell (7-2), a second shell (8-2), a first air distribution ring (7-5), a second air distribution ring (8-4), a third connecting rod (7-10) and fan blades (7-11), wherein the first turbofan (7-1) is connected with one end of a fourth transmission shaft (7-4), the second turbofan (8-1) is connected with one end of a third transmission shaft (6-3), the first turbofan (7-1) and the second turbofan (8-1) are fixed by a fixing support for fixing a turbine shaft, the first shell (7-2) and the second shell (8-2) are cuboid thin-wall frames, two air inlets (7-3) are arranged for air inlet, and one air inlet is arranged on the first shell (7-2), The bottom of the rear end of the second shell (8-2) is rectangular and is positioned at the outer side of the shell and is higher than the windowsill by a distance, the other end of the second shell is positioned at the rear ends of the first air distribution ring (7-5) and the second air distribution ring (8-4), through holes are formed in the middles of the first air distribution ring (7-5) and the second air distribution ring (8-4) and are used for connecting indoor air and outdoor air, the third shell comprises three layers which are thin-walled, an opening is formed in the first layer at a position close to the first turbofan (7-1) and the second turbofan (8-1) for ventilation, a cavity is formed between the second layer and the first layer, the front end and the rear end of the second layer are sealed, the third layer is tightly connected with the rear end of the second layer, the first air distribution ring (7-5), the second air distribution ring (8-4) and the first shell (7-2), The shell II (8-2) is tightly connected, the front ends of the air distribution ring I (7-5) and the air distribution ring II (8-4) are air outlets, fan blades (7-11) are arranged at the front ends, a horizontal placing cylinder is arranged at the upper ends of the fan blades (7-11), the interior of the cylinder penetrates through a connecting rod III (7-10), the two ends of the cylinder are fixed by hinges, when wind passes through the cylinder, the fan blades (7-11) are opened, and when no wind exists, the fan blades (7-11) are closed by self weight;
the filter device comprises fine filter screens (7-9), HEPA filter screens (7-8), PP cotton screen bodies (7-7) and activated carbon filter screens (7-6), the filter device is arranged on the outer side of a through hole chamber in the middle of a first gas distribution ring (7-5) and a second gas distribution ring (8-4), the filter screens close to the first gas distribution ring (7-5) and the second gas distribution ring (8-4) are the fine filter screens (7-9) of a first layer, the HEPA filter screens (7-8) are arranged on an outward second layer in sequence, the PP cotton screen bodies (7-7) are arranged on a third layer, and the activated carbon filter screens (7-6) are arranged on a fourth layer.
2. The window closing and indoor ventilating device using the potential energy of rainwater in a downpipe of claim 1, wherein: and another group of water collectors and impellers are arranged below the impellers (1-10) in the downpipe (1), and each group of water collectors and impellers corresponds to one floor.
3. The device for closing the window and ventilating the room by utilizing the potential energy of rainwater in the downpipe according to claim 1, wherein the first sliding block (9-2) and the second sliding block (9-6) in the cavity of the lower window frame (9) are cuboid in shape, and when the first sliding block (9-2) and the second sliding block (9-6) are pushed to the lower window frame (9), the window is driven to move left and right.
4. A method of closing a window using the potential energy of rain in a downpipe, using the apparatus of claim 1, comprising the steps of:
(1) when the suspended type window is in an open state, the window frame (10-4) presses the metal sheet II (3-13) of the connecting rod I (3-10) on the right side, the connecting rod I (3-10) is stressed to rotate around a fulcrum, so that the sliding block III (3-7) moves leftwards, the bevel gear seven (3-4) with two large ends combined together moves leftwards axially, and is meshed with the bevel gear eight (9-3) on the left side and the bevel gear eleven (9-8) on the left side, and the forward gear is formed;
(2) and when raining: rainwater is accumulated in a downpipe water collector (1-6) in rainy days, when the rainwater collected in the water collector (1-6) reaches a certain depth, an upper floating ball (1-7) is pulled to pull up a water plug (1-9), the rainwater flows down from a hole and impacts blades of an impeller (1-10) to rotate, the blades rotate to drive a rotating shaft (1-3) outside a window and a transmission shaft I (3-3), a crown gear (3-1) and a straight gear I (3-2) are meshed to rotate to drive a bevel gear seven (3-4) with two big ends combined together to rotate, the screw I (9-1) and the screw II (9-5) rotate to drive a slide block I (9-2) and a slide block II (9-6) to move towards two sides, the slide block I (9-2) and the slide block II (9-6) move in a cuboid cavity of a lower window frame (9), so as to drive the window to move left and right;
(3) when the window is closed: when the sliding block II (9-6) drives the window to be pushed to the left side and closed, the metal sheet I (3-12) of the connecting rod II (3-11) on the left side is pressed, the connecting rod II (3-11) is forced to rotate around the support, the shaft of the bevel gear seven (3-4) with two large ends combined together is forced to move rightwards, and is meshed with the bevel gear nine (9-4) and the bevel gear ten (9-7) on the right side, and the backward gear is formed at the moment; the second sliding block (9-6) moves towards the middle of the window in the cavity until reaching the limiting block (3-15);
(4) and when the sliding block resets: when the transmission gear is in a reverse gear, the first screw rod (9-1) and the second screw rod (9-5) rotate to enable the first sliding block (9-2) and the second sliding block (9-6) to move towards the middle position of the downward slideway, when the transmission gear moves to the position of the limiting block (3-15), the second right metal sheet (3-13) is pressed, the second right spring (3-9) in the third sliding block (3-7) has a larger elastic coefficient, and although the first right connecting rod (3-10) has a smaller moment, the forces of the second left connecting rod (3-11) and the first left spring (3-8) can be balanced, so that the seventh bevel gear (3-4) with two large ends combined together is not meshed with any gear, and is in a neutral gear at the moment.
5. An indoor ventilation method utilizing rainwater potential energy in a downpipe is characterized in that by utilizing the device of claim 1, when a bevel gear seven (3-4) with two big ends combined together is in a neutral position, namely a ventilation gear, a straight gear two (5-1), a straight gear three (5-2) and a transmission shaft two (4-3) start to rotate, the bevel gear three (4-1), a bevel gear four (4-2), a bevel gear five (6-1) and a bevel gear six (6-2) are meshed for transmission, and a turbofan I (7-1) and a turbofan II (8-1) are respectively driven to realize ventilation.
CN201810960836.4A 2018-08-22 2018-08-22 Window closing and indoor ventilation device and method utilizing rainwater potential energy in downpipe Active CN109184413B (en)

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