CN111255347A - Antidetonation type aluminum-wood composite window convenient to maintain - Google Patents

Antidetonation type aluminum-wood composite window convenient to maintain Download PDF

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Publication number
CN111255347A
CN111255347A CN202010165288.3A CN202010165288A CN111255347A CN 111255347 A CN111255347 A CN 111255347A CN 202010165288 A CN202010165288 A CN 202010165288A CN 111255347 A CN111255347 A CN 111255347A
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CN
China
Prior art keywords
fixed
frame
wall
sleeve
damping
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Granted
Application number
CN202010165288.3A
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Chinese (zh)
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CN111255347B (en
Inventor
赵海峰
赵俊
赵辉
吴安学
李随有
韩荣富
赵开兴
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.)
Anhui Lantian Dacheng Door And Window Curtain Wall Co ltd
Original Assignee
Chaohu Lan Tian Da Cheng Windows Curtain Wall Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Chaohu Lan Tian Da Cheng Windows Curtain Wall Co ltd filed Critical Chaohu Lan Tian Da Cheng Windows Curtain Wall Co ltd
Priority to CN202010165288.3A priority Critical patent/CN111255347B/en
Publication of CN111255347A publication Critical patent/CN111255347A/en
Application granted granted Critical
Publication of CN111255347B publication Critical patent/CN111255347B/en
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    • 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
    • E06B3/96Corner joints or edge joints for windows, doors, or the like frames or wings
    • 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
    • E05F5/00Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/10Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes

Abstract

The invention discloses an anti-seismic aluminum-wood composite window convenient to maintain, which comprises a fixed outer frame, wherein the inner wall of the fixed outer frame is provided with a mounting groove, the inner wall of the mounting groove is clamped with a movable plate through a clamping block, the bottom surface of the movable plate is fixedly connected with a damping piston column, the surface of the damping piston column is movably connected with a damping sleeve, one end of the damping sleeve, which is far away from the damping piston column, is fixedly connected with a fixed inner frame, and the inner wall of the fixed inner frame is movably connected with a connecting rod through a sliding rail and a; according to the invention, the damping sleeve and the damping piston column are absorbed by air pressure between the damping sleeve and the damping piston column in the process of being transmitted from the fixed outer frame to the fixed inner frame, so that the vibration in the door and window is reduced, and when the door and window needs to be cleaned and maintained, the fixed sleeve can be unscrewed, so that the fixed inner frame can be conveniently taken out for cleaning and maintenance, and the effect of conveniently cleaning and maintaining the composite window while damping is achieved.

Description

Antidetonation type aluminum-wood composite window convenient to maintain
Technical Field
The invention relates to the technical field of home decoration accessories, in particular to an anti-seismic aluminum-wood composite window convenient to maintain.
Background
Along with the gradual improvement of the quality of life of modern people, various home furnishings with different styles are also diversified, in order to adapt to the market demands, various beautiful and practical furniture products are designed, one of the aluminum-wood composite doors and windows is one of the aluminum-wood composite doors and windows, the aluminum-wood composite doors and windows adopt wood as frame materials as stress rod piece base materials and are compounded with aluminum materials, the style of solid wood doors and windows is kept, and meanwhile, due to the characteristics of the aluminum materials, the doors and windows have excellent physical properties, excellent energy-saving effect and strong weather resistance.
Present aluminum-wood composite door and window accomplishes the back in the installation, if indoor still need the fitment, when the operation that the fitter punched or dredged for the wall, the vibrations of wall body often can transmit on the window frame for glass all can receive vibrations with the window frame, thereby the problem of deformation appears easily in spare part in the composite door and window, and finish the back at the fitment, often can deposit more rubble bits in the window frame, thicker dust often can be remained on the window body surface, it is comparatively inconvenient to clear up the maintenance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the anti-seismic aluminum-wood composite window convenient to maintain, which has the advantages of convenience in cleaning and maintenance and certain damping function, and solves the defects that the existing aluminum-wood composite window is poor in damping function and inconvenient to clean and maintain.
The invention relates to an anti-seismic aluminum-wood composite window convenient to maintain, which comprises a fixed outer frame, wherein the inner wall of the fixed outer frame is provided with a mounting groove, the inner wall of the mounting groove is clamped with a movable plate through a clamping block, the bottom surface of the movable plate is fixedly connected with a damping piston column, the surface of the damping piston column is movably connected with a damping sleeve, one end of the damping sleeve, far away from the damping piston column, is fixedly connected with a fixed inner frame, the inner wall of the fixed inner frame is movably connected with a connecting rod through a sliding rail and a sliding block, the surface of the fixed inner frame is fixedly connected with an aluminum window frame through a hinge, one end of the connecting rod, far away from the sliding rail, is fixedly connected with the surface of the aluminum window frame through a hinge, the surface of the aluminum window frame is embedded with, the front of fly leaf is inlayed and is had the connecting pipe, the air vent with connecting pipe looks adaptation is all seted up to the fly leaf with the inside of damping piston post, the surperficial threaded connection of connecting pipe has fixed sleeve, the inner wall swing joint of connecting pipe has the piston piece, the inside of piston piece is equipped with one-way pneumatic valve, the fixed surface of piston piece is connected with the pushing ram, the one end through connection pole that the piston piece was kept away from to the pushing ram extend to fixed sleeve inner wall and with fixed sleeve's inner wall fixed connection, the through-hole with fixed sleeve looks adaptation is seted up on the surface of fixed frame, and the inner wall and the fixed sleeve's surface threaded connection of here through-hole, fixed sleeve's fixed surface is connected with movable pulley, the one end surface that fixed frame was kept.
According to the shock-resistant aluminum-wood composite window convenient to maintain, the inner wall, close to the back, of the fixed outer frame is fixedly connected with the protection frame, the protection frame and the opposite side of the fixed frame are fixedly connected with the protection block, the surface of the protection block is movably connected with the surface of the shock absorption sleeve, the protection frame and the protection block can ensure that the shock absorption sleeve can be blocked by the protection frame and cannot fall out after being fixed in the fixed outer frame, the shock absorption sleeve can be supported by the protection block, the lateral bearing capacity of the shock absorption sleeve is increased, and the shock absorption sleeve is prevented from being broken when the air pressure in the shock absorption sleeve is large.
According to the anti-seismic aluminum-wood composite window convenient to maintain, the surface of the movable belt wheel is in transmission connection with the elastic transmission belt, the surface of the elastic transmission belt is movably connected with the clamping column, one end of the clamping column is fixedly connected with the surface of the fixed frame, and the movable belt wheel and the elastic transmission belt are used for continuously rotating one of the fixed sleeves to drive the other fixed sleeves to move through the movable belt wheel and the elastic transmission belt after each fixed sleeve is unscrewed when the fixed frame needs to be installed or disassembled, so that the effect of facilitating disassembly when a door window is maintained is achieved without screwing all the fixed sleeves down one by one.
According to the anti-seismic aluminum-wood composite window convenient to maintain, the decoration cover is clamped on the front face of the fixing frame, the movable belt wheel, the clamping column and the elastic transmission belt are all located inside the decoration cover, and the movable belt wheel and other structures exposed outside the fixing frame can be covered through the decoration cover, so that the phenomenon that the appearance of the whole door and window is influenced due to exposure outside is avoided.
The anti-seismic aluminum-wood composite window convenient to maintain is characterized in that the number of the fixing frames is two, the two fixing frames are distributed on the front surface of the fixing outer frame by taking the vertical center line of the front surface of the fixing outer frame as a symmetry axis, through the two fixing frames, when the fixing frames are disassembled and the fixing inner frame and other parts connected with the fixing inner frame are taken out, one fixing frame can be taken down firstly, other operators hold the fixing inner frame and then continue to disassemble the other fixing frame, and the problem that when a door and window is disassembled to clean and maintain the door and window, other parts in the door and window lose support and topple over to injure people is avoided.
The anti-seismic aluminum-wood composite window convenient to maintain is characterized in that the number of the movable plates and the number of the mounting grooves are four, one movable plate and one mounting groove form a group, the four groups of movable plates and the four groups of mounting grooves are distributed on the inner wall of the fixed outer frame in a square shape, and the four movable plates and the four mounting grooves can transmit the vibration transmitted from four directions on the inner wall of the fixed outer frame to the damping sleeve pipe, so that the integral damping effect of the device is ensured.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, when vibration is generated near the door and window and transmitted from the fixed outer frame to the fixed inner frame through the damping sleeve and the damping piston column, the vibration in the door and window is reduced by being absorbed by air pressure between the damping sleeve and the damping piston column, and when the door and window needs to be cleaned and maintained, the fixed sleeve can be unscrewed, so that the piston block is gradually drawn out of the fixed sleeve by the push rod, the air pressure in the damping sleeve is reduced, the fixed inner frame is conveniently taken out for cleaning and maintenance, and the effect of conveniently cleaning and maintaining the composite window while damping is achieved.
2. According to the invention, through the movable belt wheel and the elastic transmission belt, when the fixing frame needs to be installed or disassembled, after each fixing sleeve is unscrewed, the other fixing sleeves can be driven to move through the movable belt wheel and the elastic transmission belt by continuously rotating one of the fixing sleeves, and the fixing sleeves do not need to be completely unscrewed one by one, so that the effect of more convenient disassembly when the door and the window are maintained is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic side sectional view of an anti-seismic aluminum-wood composite window for easy maintenance;
FIG. 2 is a schematic view of a front cross-sectional structure of an anti-seismic aluminum-wood composite window for easy maintenance;
FIG. 3 is a schematic front cross-sectional view of the trim cover;
FIG. 4 is an enlarged view of the structure at A in FIG. 1;
FIG. 5 is an enlarged view of the structure at B in FIG. 1;
fig. 6 is an enlarged schematic view of the structure at C in fig. 3.
In the figure: 1. fixing the outer frame; 2. mounting grooves; 3. a movable plate; 4. a damping piston post; 5. a shock-absorbing sleeve; 6. fixing the inner frame; 7. a connecting rod; 8. an aluminum window frame; 9. a wooden window frame; 10. double-layer glass; 11. a fixing frame; 12. a connecting pipe; 13. fixing the sleeve; 14. a piston block; 15. a push rod; 16. a movable pulley; 17. a protective frame; 18. a protection block; 19. an elastic transmission belt; 20. clamping the column; 21. a decorative cover.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-6, the anti-seismic aluminum-wood composite window convenient for maintenance of the invention comprises a fixed outer frame 1, wherein an installation groove 2 is formed on the inner wall of the fixed outer frame 1, a movable plate 3 is clamped on the inner wall of the installation groove 2 through a clamping block, a damping piston column 4 is fixedly connected to the bottom surface of the movable plate 3, a damping sleeve 5 is movably connected to the surface of the damping piston column 4, a fixed inner frame 6 is fixedly connected to one end of the damping sleeve 5 away from the damping piston column 4, a connecting rod 7 is movably connected to the inner wall of the fixed inner frame 6 through a sliding rail and a sliding block, an aluminum window frame 8 is fixedly connected to the surface of the fixed inner frame 6 through a hinge, one end of the connecting rod 7 away from the sliding rail is fixedly connected to the surface of the aluminum window frame 8 through a hinge, a wood window frame 9 is embedded on the surface of the aluminum window, the front of the movable plate 3 is embedded with a connecting pipe 12, the insides of the movable plate 3 and the damping piston column 4 are both provided with air vents matched with the connecting pipe 12, the surface of the connecting pipe 12 is in threaded connection with a fixed sleeve 13, the inner wall of the connecting pipe 12 is movably connected with a piston block 14, the inside of the piston block 14 is provided with a one-way air valve, the surface of the piston block 14 is fixedly connected with a push rod 15, one end of the push rod 15 far away from the piston block 14 penetrates through the connecting rod 7 and extends to the inner wall of the fixed sleeve 13 and is fixedly connected with the inner wall of the fixed sleeve 13, the surface of the fixed frame 11 is provided with a through hole matched with the fixed sleeve 13, the inner wall of the through hole is in threaded connection with the surface of the fixed sleeve 13, the surface of the fixed sleeve 13 is fixedly connected with a movable belt pulley 16, the, make near door and window produce when vibrations, transmit to fixed inside casing 6's in-process by fixed frame 1 department, absorbed by the atmospheric pressure between shock attenuation sleeve 5 and the damping piston post 4, reduce the inside vibrations of door and window, and when needing to clear up door and window and maintain, can be through unscrewing fixed sleeve 13, make propulsion pole 15 take piston block 14 out fixed sleeve 13 gradually, make the atmospheric pressure in the shock attenuation sleeve 5 reduce, thereby conveniently take out fixed inside casing 6 and clean the maintenance, when the absorbing, reached in the absorbing, conveniently clean the effect of maintaining to compound window.
Fixed frame 1 is close to the inner wall fixedly connected with protective frame 17 at the back, protective frame 17 and the equal fixedly connected with protective block 18 of the opposite side of fixed frame 11, the surface of protective block 18 and shock attenuation sleeve 5's surface swing joint, through protective frame 17 and protective block 18, make and to guarantee to fix back in installing fixed frame 1, can block and can not fall out by protective frame 17, and protective block 18's setting can prop shock attenuation sleeve 5, increase the bearing capacity of 5 lateral sides of shock attenuation sleeve, avoid great at shock attenuation sleeve 5 inside atmospheric pressure often cracked.
The surface transmission of the movable belt wheel 16 is connected with an elastic transmission belt 19, the surface movable connection of the elastic transmission belt 19 is connected with a clamping column 20, one end of the clamping column 20 is fixedly connected with the surface of the fixed frame 11, and the movable belt wheel 16 and the elastic transmission belt 19 are used for continuously rotating one of the fixed sleeves 13 after each fixed sleeve 13 is unscrewed when the fixed frame 11 needs to be installed or detached, so that other fixed sleeves 13 can be driven to move through the movable belt wheel 16 and the elastic transmission belt 19 without screwing all the fixed sleeves 13 down one by one, and the effect of more convenient detachment when the door window is maintained is achieved.
The front joint of fixed frame 11 has the dress trim cover 21, and movable belt pulley 16, press from both sides tight post 20 and elastic transmission belt 19 and all be located the inside of dress trim cover 21, through dress trim cover 21 for can cover movable belt pulley 16 etc. expose the structure of fixed frame 11 outside, avoid exposing outside and influence the holistic impression of door and window.
The quantity of fixed frame 11 is two, and two fixed frames 11 use the vertical central line in front of fixed frame 1 to distribute at the front of fixed frame 1 as the symmetry axis, through two fixed frames 11, make taking out fixed inside casing 6 and other parts that it is connected, can take off a fixed frame 11 earlier, hold fixed inside casing 6 by other operating personnel and continue to carry out the dismantlement of another fixed frame 11 afterwards, avoid taking apart door and window when clearing up its maintenance, the inside other parts of door and window lose to support and empty and injure people's problem by a crashing object.
The quantity of fly leaf 3 and mounting groove 2 is four, and a fly leaf 3 and a mounting groove 2 are a set of, and four groups of fly leaves 3 are the mouth style of calligraphy with mounting groove 2 and distribute at the inner wall of fixed frame 1, through four fly leaves 3 and mounting groove 2 for can transmit the vibrations that four directions of fixed frame 1 inner wall transmitted to damping sleeve 5 in, guarantee the holistic shock attenuation effect of device.
When the invention is used, if the wall surface near the door and window is decorated, the generated vibration can be transmitted to the movable plate 3 through the fixed outer frame 1, at this time, the movable plate 3 can push the damping piston column 4 to extrude the gas in the damping sleeve 5 and absorb most of the vibration, when the door and window needs to be disassembled for maintenance and cleaning, the decoration cover 21 can be disassembled, then each fixed sleeve 13 is unscrewed through the screwdriver, at this time, the piston block 14 can be driven by the pushing rod 15 to move out of the connecting pipe 12, simultaneously the air pressure in the damping sleeve 5 is reduced, one of the fixed sleeves 13 is continuously unscrewed, so that the movable pulley 16 at the position can drive other movable pulleys 16 to move through the elastic transmission belt 19, a plurality of fixed sleeves 13 are disassembled simultaneously, at this time, after one fixed frame 11 is disassembled firstly, an assistant person needs to hold other parts in the fixed inner frame 6, the other fixed frame 11 is continuously detached in the method, and finally the fixed inner frame 6 can be integrally detached, so that an operator can conveniently maintain and clean the fixed inner frame.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (6)

1. The utility model provides an antidetonation type aluminum-wood composite window convenient to maintain, includes fixed frame, its characterized in that: the inner wall of the fixed outer frame is provided with a mounting groove, the inner wall of the mounting groove is clamped with a movable plate through a clamping block, the bottom surface of the movable plate is fixedly connected with a damping piston column, the surface of the damping piston column is movably connected with a damping sleeve, one end of the damping sleeve, far away from the damping piston column, is fixedly connected with a fixed inner frame, the inner wall of the fixed inner frame is movably connected with a connecting rod through a sliding rail and a sliding block, the surface of the fixed inner frame is fixedly connected with an aluminum window frame through a hinge, one end of the connecting rod, far away from the sliding rail, is fixedly connected with the surface of the aluminum window frame through a hinge, the surface of the aluminum window frame is embedded with a wood window frame, the aluminum window frame and the inner wall of the wood window frame are both embedded with double-layer glass, the front of the fixed outer, the surperficial threaded connection of connecting pipe has fixed sleeve, the inner wall swing joint of connecting pipe has the piston piece, the inside of piston piece is equipped with one-way pneumatic valve, the fixed surface of piston piece is connected with the pushing ram, the one end through connection pole that the piston piece was kept away from to the pushing ram extends to fixed sleeve inner wall and with fixed sheathed tube inner wall fixed connection, the through-hole with fixed sleeve looks adaptation is seted up on the surface of fixed frame, and the inner wall and the fixed sheathed tube surface threaded connection of this through-hole, fixed sheathed tube fixed surface is connected with movable pulley, the fixed sleeve keeps away from the one end surface of fixed frame and is equipped with the screw hole.
2. An earthquake-resistant aluminum-wood composite window convenient to maintain as claimed in claim, wherein: the inner wall of the fixed outer frame close to the back is fixedly connected with a protective frame, the opposite sides of the protective frame and the fixed frame are fixedly connected with protective blocks, and the surfaces of the protective blocks are movably connected with the surface of the damping sleeve.
3. An earthquake-resistant aluminum-wood composite window convenient to maintain as claimed in claim, wherein: the surface transmission of activity band pulley is connected with elastic transmission belt, elastic transmission belt's surface swing joint has the tight post of clamp, the one end of pressing from both sides tight post is connected with the fixed surface fixation of fixed frame.
4. An earthquake-resistant aluminum-wood composite window convenient to maintain as claimed in claim, wherein: the front joint of fixed frame has the decoration cover, activity band pulley, press from both sides tight post and elastic transmission area all are located the inside of decorating the cover.
5. An earthquake-resistant aluminum-wood composite window convenient to maintain as claimed in claim, wherein: the number of the fixing frames is two, and the two fixing frames are distributed on the front surface of the fixing outer frame by taking the vertical center line of the front surface of the fixing outer frame as a symmetry axis.
6. An earthquake-resistant aluminum-wood composite window convenient to maintain as claimed in claim, wherein: the number of the movable plates and the mounting grooves is four, one movable plate and one mounting groove form a group, and the four groups of movable plates and the mounting grooves are distributed on the inner wall of the fixed outer frame in a shape of Chinese character 'kou'.
CN202010165288.3A 2020-03-11 2020-03-11 Antidetonation type aluminum-wood composite window convenient to maintain Active CN111255347B (en)

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Application Number Priority Date Filing Date Title
CN202010165288.3A CN111255347B (en) 2020-03-11 2020-03-11 Antidetonation type aluminum-wood composite window convenient to maintain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010165288.3A CN111255347B (en) 2020-03-11 2020-03-11 Antidetonation type aluminum-wood composite window convenient to maintain

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CN111255347B CN111255347B (en) 2021-06-29

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10280821A (en) * 1997-04-02 1998-10-20 Daiki:Kk Hinged door for earthquake resistance
CN105275331A (en) * 2015-10-30 2016-01-27 成都标建铝业有限公司 Aluminum window
CN106761297A (en) * 2016-12-16 2017-05-31 重庆金华兴门业有限公司 A kind of Woodiness sound-proof door
CN207863751U (en) * 2018-02-07 2018-09-14 应丹雷 A kind of aluminum alloy doors and windows overall assembled window system component
CN209228251U (en) * 2018-08-14 2019-08-09 南京迈豪幕墙工程有限公司 One kind having resisting wind press capacity aluminium door and window

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10280821A (en) * 1997-04-02 1998-10-20 Daiki:Kk Hinged door for earthquake resistance
CN105275331A (en) * 2015-10-30 2016-01-27 成都标建铝业有限公司 Aluminum window
CN106761297A (en) * 2016-12-16 2017-05-31 重庆金华兴门业有限公司 A kind of Woodiness sound-proof door
CN207863751U (en) * 2018-02-07 2018-09-14 应丹雷 A kind of aluminum alloy doors and windows overall assembled window system component
CN209228251U (en) * 2018-08-14 2019-08-09 南京迈豪幕墙工程有限公司 One kind having resisting wind press capacity aluminium door and window

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Address after: 230000 north of S208 Road, zhegao Town, Juchao District, Chaohu City, Anhui Province

Patentee after: Anhui Lantian Dacheng door and window curtain wall Co.,Ltd.

Address before: 230000 north of S208 Road, zhegao Town, Juchao District, Chaohu City, Anhui Province

Patentee before: CHAOHU LAN TIAN DA CHENG WINDOWS CURTAIN WALL Co.,Ltd.

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