CN109209207A

CN109209207A - A kind of shutter and its application method around mandrel winding

Info

Publication number: CN109209207A
Application number: CN201811326179.4A
Authority: CN
Inventors: 黄琦
Original assignee: Tiantai Chi Chi New Mstar Technology Ltd
Current assignee: Tiantai Chi Chi New Mstar Technology Ltd
Priority date: 2018-11-08
Filing date: 2018-11-08
Publication date: 2019-01-15

Abstract

The invention discloses a kind of shutters and its application method around mandrel winding, this method institute use device includes first device main body, it is set to the intracorporal control device of first device master, it is set to the intracorporal blinds apparatus of the first device master and is set to the intracorporal fixed device of the first device master, the control device includes being set to the intracorporal switching chamber of the first device master, the switching is intracavitary to be slidably provided with the first sliding block, what is be connected in inner wall on the right side of the switching chamber is provided with control chamber, the first sliding block right end extension, which is passed through in the control chamber, is fixedly installed elevator, the winding with shutter can be fixed in the present apparatus automatically, the open angle of blinds also can be automatically controled adjusting simultaneously, it is easy to use, also being able to satisfy different daylighting degree demands is opened and closed control simultaneously.

Description

A kind of shutter and its application method around mandrel winding

Technical field

The present invention relates to Smart Home technical field, specially a kind of shutter and its application method around mandrel winding.

Background technique

In daily life, shutter is seen everywhere, but shutter is fixed by the way of bookbinding, is pacified Inconvenience is unloaded in assembly and disassembly, at the same mostly use greatly manually mode carry out shutter, be difficult to control the size of its opening degree, therefore, Be badly in need of it is a kind of around mandrel winding shutter and its application method, the present apparatus winding with shutter can be fixed automatically, together The open angle of Shi Baiye also can be automatically controled adjusting, easy to use, while being also able to satisfy different daylighting degree demands and being opened Close control.

Summary of the invention

The purpose of the present invention is to provide a kind of shutters and its application method around mandrel winding, for overcoming existing skill Drawbacks described above in art.

A kind of shutter and its application method around mandrel winding according to the present invention, this method institute's use device includes the One apparatus main body is set to the intracorporal control device of the first device master, is set to the intracorporal blinds of first device master Window device and it is set to the intracorporal fixed device of the first device master, the control device includes being set to first dress Main intracorporal switching chamber is set, the switching is intracavitary to be slidably provided with the first sliding block, is connected in inner wall on the right side of the switching chamber Logical is provided with control chamber, and the first sliding block right end extension, which is passed through in the control chamber, is fixedly installed elevator, the liter It is provided with opening sliding groove to the right in drop block, is rotatably provided with the first turntable on the right side of the elevator, described first turn Side surface rear end of facing left is fixedly connected with the sliding bar for extending and being passed through in the sliding groove, setting in inner wall on the right side of the control chamber There is the first drive cavity, is fixedly installed first motor, first motor left end power in inner wall on the right side of first drive cavity It is connected with irregular gear, the irregular gear rear and front end is symmetrical and what is be meshed is provided with the first spur gear, institute It states the first spur gear and is connected to the blinds apparatus, the second motor, second electricity are fixedly installed in first sliding block Machine upper end power is connected with first bevel gear, the first bevel gear left and right ends it is symmetrical and engageable be provided with second Bevel gear at left and right sides of the switching chamber and is right against in the inner wall of the second bevel gear that symmetrical and what is be connected is provided with the One axis hole, the second bevel gear are fixedly connected with first turn for extending and being passed through in the first shaft hole far from symmetrical centre one end Axis, the first rotating shaft are connected to the fixed device, and second motor lower end power is connected with third hand tap gear, institute State third hand tap gear left end it is engageable be provided with the 4th bevel gear, at left and right sides of the switching chamber and be right against the 4th cone Symmetrical and what is be connected is provided with the second axis hole in the inner wall of gear, the 4th bevel gear left and right ends are fixedly connected with extension The second shaft being passed through in second axis hole, second shaft are connected to the blinds apparatus, and the first motor is right Cam chamber is provided in the inner wall of side, the first motor right end power is connected with the third for extending and being passed through in the cam chamber Shaft, the third shaft right end are fixedly connected with cam, and being provided with for being connected in inner wall on the downside of the cam chamber is connected to The stop cavity of right side second axis hole, be slidably provided in the cam chamber and on the downside of the cam lower end extend it is logical Enter the second sliding block in the stop cavity, second sliding block lower end is fixedly connected with scotch.

Further technical solution, the blinds apparatus includes symmetrical and connection is set to second axis hole far from The first coil cavity in the inner wall of heart side, the first volume are rotatably provided with the first mandrel, second shaft around intracavitary First mandrel is fixedly connected on the end face of symmetrical centre side, is arranged with the first bracing wire in first mandrel, What is be connected in inner wall on the downside of first coil cavity is provided with the first port that Open Side Down, the first device main body downside It is evenly distributed and is provided with blinds, except bilateral symmetry in the blinds of lower side and be provided through the second port up and down, it is described First is drawstring through first port and second port and is fixedly connected on the upside end face of the blinds of lower side On, lifting chamber is symmetrically arranged in the inner wall of first coil cavity front and rear sides, the lifting is intracavitary to be slidably provided with cunning Plate, the slide plate are fixedly installed rack gear in one side end face of symmetrical centre, and the lifting chamber is close to symmetrical centre side What is be connected in inner wall is provided with gear cavity, and the second straight-tooth for being engaged in the rack gear is rotatably provided in the gear cavity Wheel, second spur gear are fixedly connected with the 4th shaft on a side end face of first spur gear, and described 4th turn Axis is fixedly connected at left and right sides of first spur gear on end face, and the slide plate lower end is fixedly connected with the second bracing wire, described Second bracing wire front and back is symmetrical and is fixedly connected on the upside end face of blinds described in top side, and the two neighboring blinds is with respect to one Third bracing wire is fixedly connected between side end face at second bracing wire described in face.

Further technical solution, the fixed device include that connection is set to the first shaft hole far from symmetrical centre one Telescopic cavity in the inner wall of side is slidably provided with telescopic block, telescopic block inner opening the setting to center in the telescopic cavity It is equipped with thread cavity, the thread cavity screw-internal thread fit is connected with screw rod, and the first rotating shaft is far from the fixed company in symmetrical centre one end The screw rod is connected on the end face of symmetrical centre side, what the telescopic cavity was connected in the inner wall far from center side sets The extraneous containing cavities of connection are equipped with, the telescopic block extension, which is passed through in the containing cavities, is fixedly installed press block.

Further technical solution, described to switch the guide runner that is provided with being connected in chamber inner left wall, described first is sliding Block left end, which is fixedly connected with, extends the slider guide that is passed through in the guide runner, in the slider guide upper and lower ends and the guide runner It is symmetrical and be fixedly connected with first back-moving spring between the inner wall of lower two sides；The scotch upper end and the stop cavity upper inside walls Between be fixedly connected with second back-moving spring.

This method includes the following steps:

Firstly, first device main body is placed the upside between window, first motor starts at this time, and then drives irregular gear 90 degree are rotated, and then drives the first turntable to rotate 90 degree, and then drive elevator to make a motion to limes superiors by sliding bar Position, and then the first sliding block is driven to be moved to upper limit position, the second electric motor starting, and then drive first bevel gear turn at this time It is dynamic, and then engaged by gear and drive second bevel gear rotation, and then screw rod rotation is driven by first rotating shaft, and then pass through spiral shell Line connection drives telescopic block mobile to the direction far from symmetrical centre, and then press block is driven to move to the direction far from symmetrical centre It is dynamic, and then be fixed by press block with the drop present apparatus is held out against between the walls；

Secondly, first motor inverts at this time, and then drives the first turntable to rotate 180 degree, and then drive the first sliding block mobile To lower limit position, third hand tap gear is meshed with the 4th bevel gear at this time, and in the process, first motor band moving cam turns Dynamic, the small circular portion of cam offsets with the second sliding block at this time, and scotch is upward under the elastic force effect of second back-moving spring at this time Mobile, scotch is separated with second shaft on right side at this time, releases stop, in the process, the first drive cavity and the first straight-tooth Wheel is meshed and drives its rotation, and then drives the rotation of the second spur gear by the 4th shaft, and then pass through rack and pinion engagement Band carry-over bar is mobile, and the rack gear of front side moves up at this time, and the rack gear of rear side moves down, and slide plate is in same level position at this time It sets, blinds is in lying status at this time, at this time the second electric motor starting, and then drives third hand tap gear rotation, and then pass through gear Engagement drives the rotation of the 4th bevel gear, and then drives the first central axis by the second shaft, and then discharge the first bracing wire, at this time The blinds falls downward of lower side, and then be successively unfolded from top to bottom, when dropping to desired height, the second motor stops at this time Only；

Finally, first motor rotates forward at this time, by control first motor come the position of adjusting slider, controls from by the second bracing wire The tilt angle of blinds, to control the opening degree of shutter, in the process, scotch and the second shaft are inconsistent, into Whereabouts are dynamic.

The beneficial effects of the present invention are: the configuration of the present invention is simple, easy to operate, when using the present apparatus, both ends can be first passed through The present apparatus is fixed the mode held out against, is mounted on window, facilitates installation and removal, passes through the side of winding after being installed Formula puts down drawstring, and then shutter is put down, and can automatically select height and stop, then can control blinds either on or off, this dress The winding that can be fixed automatically with shutter is set, while the open angle of blinds also can be automatically controled adjusting, it is easy to use, together When be also able to satisfy different daylighting degree demands control be opened and closed.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram inside the shutter of mandrel winding and its application method of the invention；

Fig. 2 is the enlarged diagram of " A " in Fig. 1；

Fig. 3 is the structural schematic diagram in direction " B-B " in Fig. 2；

Fig. 4 is the structural schematic diagram in direction " C-C " in Fig. 1.

Specific embodiment

Below with reference to Fig. 1-4, the present invention is described in detail, for sake of convenience, now such as to hereafter described orientation regulation Under: hereafter described front-rear direction up and down is consistent with the front-rear direction up and down of Fig. 1 projection relation itself.

Referring to Fig.1-4, a kind of shutter and its application method around mandrel winding of embodiment according to the present invention, we Method institute use device includes first device main body 11, the control device being set in the first device main body 11, is set to institute The fixation device stating the blinds apparatus in first device main body 11 and being set in the first device main body 11, the control Device processed includes the switching chamber 12 being set in the first device main body 11, and is slidably provided in the switching chamber 12 One sliding block 13, what is be connected in the switching 12 right side inner wall of chamber is provided with control chamber 14, and 13 right end of the first sliding block extends It is passed through in the control chamber 14 and is fixedly installed elevator 15, the sliding groove 16 of opening to the right is provided in the elevator 15, 15 right side of elevator is rotatably provided with the first turntable 17, and the 17 left end face rear end of the first turntable is fixedly connected with Extend the sliding bar 18 being passed through in the sliding groove 16, is provided with the first drive cavity 19, institute in the 14 right side inner wall of control chamber It states and is fixedly installed first motor 20 in 19 right side inner wall of the first drive cavity, the 20 left end power of first motor is connected with Irregular gear 21, irregular 21 rear and front end of gear is symmetrical and what is be meshed is provided with the first spur gear 22, and described the One spur gear 22 is connected to the blinds apparatus, is fixedly installed the second motor 23 in first sliding block 13, and described second 23 upper end power of motor is connected with first bevel gear 24, and 24 left and right ends of first bevel gear are symmetrical and engageable to be set It is equipped with second bevel gear 25,12 left and right sides of switching chamber and is right against in the inner wall of the second bevel gear 25 symmetrical and phase Connection is provided with first shaft hole 26, the second bevel gear 25 far from symmetrical centre one end be fixedly connected with extension be passed through it is described First rotating shaft 28 in first shaft hole 26, the first rotating shaft 28 are connected to the fixed device, 23 lower end of the second motor Power is connected with third hand tap gear 34,34 left end of third hand tap gear it is engageable be provided with the 4th bevel gear 35, institute It states switching chamber 12 left and right sides and is right against that symmetrical in the inner wall of the 4th bevel gear 35 and what is be connected is provided with the second axis Hole 36,35 left and right ends of the 4th bevel gear are fixedly connected with the second shaft 38 for extending and being passed through in second axis hole 36, Second shaft 38 is connected to the blinds apparatus, is provided with cam chamber 61, institute in the 20 right side inner wall of first motor It states 20 right end power of first motor and is connected with the third shaft 62 for extending and being passed through in the cam chamber 61, the third shaft 62 right ends are fixedly connected with cam 63, and being provided with for being connected in the 61 downside inner wall of cam chamber is connected to right side described second The stop cavity 64 of axis hole 36, is provided in the cam chamber 61 and slidably lower end and extends and be passed through institute in 63 downside of cam The second sliding block 65 in stop cavity 64 is stated, 65 lower end of the second sliding block is fixedly connected with scotch 66.

Valuably or illustratively, the blinds apparatus include symmetrical and connection to be set to second axis hole 36 separate The first coil cavity 37 in the inner wall of center side is rotatably provided with the first mandrel 39 in first coil cavity 37, described Second shaft 38 is fixedly connected on first mandrel 39 on the end face of symmetrical centre side, in first mandrel 39 around Equipped with the first bracing wire 40, what is be connected in the 37 downside inner wall of the first coil cavity is provided with the first port 48 that Open Side Down, Be evenly distributed on the downside of the first device main body 11 and be provided with blinds 50, except in the blinds 50 of lower side bilateral symmetry and on Under be provided through the second port 51, first bracing wire 40 passes through first port 48 and second port 51 and fixed It is connected on the upside end face of the blinds 50 of lower side, is symmetrically arranged in the 37 front and rear sides inner wall of the first coil cavity Chamber 41 is gone up and down, is slidably provided with slide plate 42 in the lifting chamber 41, the slide plate 42 is in one side end face of symmetrical centre It is fixedly installed rack gear 43, what the lifting chamber 41 was connected in the inner wall of symmetrical centre side is provided with gear cavity 44, The second spur gear 45 for being engaged in the rack gear 43 is rotatably provided in the gear cavity 44, second spur gear 45 leans on It is fixedly connected with the 4th shaft 46 on one side end face of nearly first spur gear 22, the 4th shaft 46 is fixedly connected on institute It states on 22 left and right sides end face of the first spur gear, 42 lower end of slide plate is fixedly connected with the second bracing wire 47, second bracing wire 47 front and backs are symmetrical and are fixedly connected on the upside end face of blinds 50 described in top side, two neighboring 50 opposite side of blinds Third bracing wire 52 is fixedly connected at the second bracing wire 47 described in face between end face.

Valuably or illustratively, the fixed device includes that connection is set to the first shaft hole 26 far from symmetrical centre Telescopic cavity 27 in the inner wall of side is slidably provided with telescopic block 29,29 inner opening of telescopic block in the telescopic cavity 27 Center is provided with thread cavity 30,30 screw-internal thread fit of thread cavity is connected with screw rod 31, and the first rotating shaft 28 is separate Symmetrical centre one end is fixedly connected on the screw rod 31 on the end face of symmetrical centre side, and the telescopic cavity 27 is far from center What is be connected in the inner wall of side is provided with the extraneous containing cavities 32 of connection, and the extension of telescopic block 29 is passed through the containing cavities 32 Inside it is fixedly installed press block 33.

Valuably or illustratively, what is be connected in switching 12 inner left wall of chamber is provided with guide runner 53, and described the One sliding block, 13 left end, which is fixedly connected with, extends the slider guide 54 that is passed through in the guide runner 53,54 upper and lower ends of slider guide with It is symmetrical and be fixedly connected with first back-moving spring 55 between about the 53 two sides inner wall of guide runner；66 upper end of scotch with Second back-moving spring 67 is fixedly connected between 64 upper inside walls of stop cavity.

This method includes the following steps:

Firstly, first device main body 11 is placed the upside between window, first motor 20 starts at this time, and then drives irregular Gear 21 rotates 90 degree, and then drives the first turntable 17 to rotate 90 degree, and then drive elevator 15 dynamic by sliding bar 18 One moves upper limit position, and then the first sliding block 13 is driven to be moved to upper limit position, and the second motor 23 starts at this time, and then band Dynamic first bevel gear 24 rotates, and then is engaged by gear and second bevel gear 25 is driven to rotate, and then passes through 28 band of first rotating shaft Dynamic screw rod 31 rotates, and then is connected through a screw thread and drives telescopic block 29 mobile to the direction far from symmetrical centre, and then drive top Briquetting 33 is mobile to the direction far from symmetrical centre, and then is consolidated by press block 33 with the drop present apparatus is held out against between the walls It is fixed；

Secondly, first motor 20 inverts at this time, and then the first turntable 17 is driven to rotate 180 degree, and then drive the first sliding block 13 are moved to lower limit position, and third hand tap gear 34 is meshed with the 4th bevel gear 35 at this time, in the process, first motor 20 Band moving cam 63 rotates, and the small circular portion of cam 63 offsets with the second sliding block 65 at this time, and scotch 66 resets bullet second at this time It is moved up under the elastic force effect of spring 67, scotch 66 is separated with second shaft 38 on right side at this time, stop is released, in this process In, the first drive cavity 19 is meshed with the first spur gear 22 and drives its rotation, and then straight by the 4th shaft 46 drive second Gear 45 rotates, and then mobile by rack and pinion engagement band carry-over bar 43, and the rack gear 43 of front side moves up at this time, rear side Rack gear 43 moves down, and slide plate 42 is in same level position at this time, and blinds 50 is in lying status at this time, at this time the second motor 23 Starting, and then drive third hand tap gear 34 to rotate, and then drive the rotation of the 4th bevel gear 35 by gear engagement, and then pass through the Two shafts 38 drive the rotation of the first mandrel 39, and then discharge the first bracing wire 40, at this time 50 falls downward of blinds of lower side, in turn Successively it is unfolded from top to bottom, when dropping to desired height, the second motor 23 stops at this time；

Finally, first motor 20 rotates forward at this time, by control first motor 20 come the position of adjusting slider 42, draws from by second Line 47 controls the tilt angle of blinds 50, to control the opening degree of shutter, in the process, scotch 66 and second turn Axis 38 is inconsistent, carries out stop.

When original state, telescopic block 29 is retracted in telescopic cavity 27 to greatest extent, and press block 33 is retracted containing cavities to greatest extent In 32, the first bracing wire 40 at this time is to greatest extent in the first mandrel 39, and blinds 50 is in closed state at this time, and at this time first Sliding block 13 is in an intermediate position, and first bevel gear 24 and second bevel gear 25 are in non-meshing state at this time, at this time triconodont Wheel 34 and the 4th bevel gear 35 are in non-meshing state, and the cam portion of cam 63 offsets with 65 upper end of the second sliding block at this time, this When scotch 66 and second shaft 38 on right side offset, at this time front side slide plate 42 be in lower limit position, the slide plate 42 of rear side In upper limit position.

When needing using the present apparatus, first device main body 11 is placed into the upside between window, at this time first motor 20 Starting, and then drive irregular gear 21 to rotate 90 degree, and then drive the first turntable 17 to rotate 90 degree, and then pass through sliding Bar 18 drives elevator 15 to make a motion to upper limit position, and then the first sliding block 13 is driven to be moved to upper limit position, and at this time the The starting of two motors 23, and then drive first bevel gear 24 to rotate, and then engage by gear and second bevel gear 25 is driven to rotate, into And screw rod 31 is driven to rotate by first rotating shaft 28, and then be connected through a screw thread and drive telescopic block 29 to the side far from symmetrical centre To movement, and then drive press block 33 mobile to the direction far from symmetrical centre, and then pass through press block 33 and push up between the walls The tight drop present apparatus is fixed, and first motor 20 inverts at this time, and then the first turntable 17 is driven to rotate 180 degree, and then band Dynamic first sliding block 13 is moved to lower limit position, and third hand tap gear 34 is meshed with the 4th bevel gear 35 at this time, in the process, First motor 20 is rotated with moving cam 63, and the small circular portion of cam 63 offsets with the second sliding block 65 at this time, and scotch 66 exists at this time It is moved up under the elastic force effect of second back-moving spring 67, scotch 66 is separated with second shaft 38 on right side at this time, and releasing stops Dynamic, in the process, the first drive cavity 19 is meshed with the first spur gear 22 and drives its rotation, and then passes through the 4th shaft 46 The second spur gear 45 is driven to rotate, and then mobile by rack and pinion engagement band carry-over bar 43, the rack gear 43 of front side is upward at this time Mobile, the rack gear 43 of rear side moves down, and slide plate 42 is in same level position at this time, and blinds 50 is in lying status at this time, this When the second motor 23 start, and then drive third hand tap gear 34 rotate, and then by gear engagement drive 35 turns of the 4th bevel gear It moves, and then the rotation of the first mandrel 39 is driven by the second shaft 38, and then discharge the first bracing wire 40, at this time the blinds 50 of lower side Falls downward, and then be successively unfolded from top to bottom, when dropping to desired height, the second motor 23 stops at this time, and at this time first Motor 20 rotates forward, and by control first motor 20 come the position of adjusting slider 42, controls blinds 50 from by the second bracing wire 47 Tilt angle, to control the opening degree of shutter, in the process, scotch 66 and the second shaft 38 are inconsistent, carry out Stop.

Those skilled in the art can define, can in the case of not departing from overall spirit of the invention and design To make the various modifications for above embodiments.It falls within the scope of protection of the present invention.Protection scheme of the invention It is subject to claims appended hereto.

Claims

1. a kind of shutter and its application method, this method institute use device around mandrel winding includes first device main body, sets It is placed in the intracorporal control device of the first device master, is set to the intracorporal blinds apparatus of the first device master and setting In the intracorporal fixed device of the first device master, it is characterised in that: the control device includes being set to the first device Main intracorporal switching chamber, the switching is intracavitary to be slidably provided with the first sliding block, is connected in inner wall on the right side of the switching chamber Be provided with control chamber, the first sliding block right end extension, which is passed through in the control chamber, is fixedly installed elevator, the lifting It is provided with the sliding groove of opening to the right in block, is rotatably provided with the first turntable, first turntable on the right side of the elevator Left end face rear end is fixedly connected with the sliding bar for extending and being passed through in the sliding groove, is provided in inner wall on the right side of the control chamber First drive cavity is fixedly installed first motor in inner wall on the right side of first drive cavity, and first motor left end power is matched Conjunction is connected with irregular gear, and the irregular gear rear and front end is symmetrical and what is be meshed is provided with the first spur gear, described First spur gear is connected to the blinds apparatus, and the second motor, second motor are fixedly installed in first sliding block Upper end power is connected with first bevel gear, the first bevel gear left and right ends it is symmetrical and engageable be provided with the second cone Gear at left and right sides of the switching chamber and is right against in the inner wall of the second bevel gear that symmetrical and what is be connected is provided with first Axis hole, the second bevel gear are fixedly connected with first turn for extending and being passed through in the first shaft hole far from symmetrical centre one end Axis, the first rotating shaft are connected to the fixed device, and second motor lower end power is connected with third hand tap gear, institute State third hand tap gear left end it is engageable be provided with the 4th bevel gear, at left and right sides of the switching chamber and be right against the 4th cone Symmetrical and what is be connected is provided with the second axis hole in the inner wall of gear, the 4th bevel gear left and right ends are fixedly connected with extension The second shaft being passed through in second axis hole, second shaft are connected to the blinds apparatus, and the first motor is right Cam chamber is provided in the inner wall of side, the first motor right end power is connected with the third for extending and being passed through in the cam chamber Shaft, the third shaft right end are fixedly connected with cam, and being provided with for being connected in inner wall on the downside of the cam chamber is connected to The stop cavity of right side second axis hole, be slidably provided in the cam chamber and on the downside of the cam lower end extend it is logical Enter the second sliding block in the stop cavity, second sliding block lower end is fixedly connected with scotch.

2. a kind of shutter and its application method around mandrel winding according to claim 1, it is characterised in that: described hundred Leaf window device includes symmetrical and connection is set to second axis hole far from the first coil cavity in the inner wall of center side, and described the One winding is intracavitary to be rotatably provided with the first mandrel, and second shaft is fixedly connected on first mandrel in symmetrically On the end face of heart side, it is arranged with the first bracing wire in first mandrel, is connected in inner wall on the downside of first coil cavity It is provided with the first port that Open Side Down, is evenly distributed on the downside of the first device main body and is provided with blinds, except the institute of lower side It states bilateral symmetry in blinds and is provided through the second port up and down, described first is drawstring through first port and described the Two ports are simultaneously fixedly connected on the upside end face of the blinds of lower side, right in the inner wall of first coil cavity front and rear sides Title is provided with lifting chamber, and the lifting is intracavitary to be slidably provided with slide plate, and the slide plate is in one side end face of symmetrical centre It is fixedly installed rack gear, what the lifting chamber was connected in the inner wall of symmetrical centre side is provided with gear cavity, the tooth Take turns it is intracavitary be rotatably provided with the second spur gear for being engaged in the rack gear, second spur gear is close to first straight-tooth The 4th shaft is fixedly connected on one side end face of wheel, the 4th shaft is fixedly connected at left and right sides of first spur gear On end face, the slide plate lower end is fixedly connected with the second bracing wire, and the second bracing wire front and back is symmetrical and is fixedly connected on top side It is fixed at the second bracing wire described in face between two neighboring blinds opposite side end face to connect on the upside end face of the blinds It is connected to third bracing wire.

3. a kind of shutter and its application method around mandrel winding according to claim 1, it is characterised in that: described solid Determining device includes that connection is set to the first shaft hole far from the telescopic cavity in the inner wall of symmetrical centre side, can in the telescopic cavity Sliding is provided with telescopic block, be provided with thread cavity of the telescopic block inner opening to center, the thread cavity screw-internal thread fit It is connected with screw rod, the first rotating shaft is fixedly connected on the screw rod close to the end of symmetrical centre side far from symmetrical centre one end On face, what the telescopic cavity was connected in the inner wall far from center side is provided with the extraneous containing cavities of connection, the telescopic block Extension, which is passed through in the containing cavities, is fixedly installed press block.

4. a kind of shutter and its application method around mandrel winding according to claim 1, it is characterised in that: described to cut The guide runner that is provided with being connected in chamber inner left wall is changed, first sliding block left end is fixedly connected with extension and is passed through the slide guide Slider guide in slot, the slider guide upper and lower ends and the guide runner are symmetrical between two sides inner walls up and down and are fixedly connected with the One reset spring；It is fixedly connected with second back-moving spring between the scotch upper end and the stop cavity upper inside walls, we Method includes the following steps: