CN216517587U - Novel hollow flush sliding window - Google Patents

Novel hollow flush sliding window Download PDF

Info

Publication number
CN216517587U
CN216517587U CN202123162427.6U CN202123162427U CN216517587U CN 216517587 U CN216517587 U CN 216517587U CN 202123162427 U CN202123162427 U CN 202123162427U CN 216517587 U CN216517587 U CN 216517587U
Authority
CN
China
Prior art keywords
wall
sliding
window
sliding sash
sliding window
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202123162427.6U
Other languages
Chinese (zh)
Inventor
周增广
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.)
Jiangsu Huashang Automobile Glass Industry Co ltd
Original Assignee
Jiangsu Huashang Automobile Glass Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Huashang Automobile Glass Industry Co ltd filed Critical Jiangsu Huashang Automobile Glass Industry Co ltd
Priority to CN202123162427.6U priority Critical patent/CN216517587U/en
Application granted granted Critical
Publication of CN216517587U publication Critical patent/CN216517587U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Wing Frames And Configurations (AREA)

Abstract

The utility model relates to the technical field of sliding windows and discloses a novel hollow flush sliding window which comprises a lower sliding rail, wherein a first I-shaped block is fixedly mounted on the left side of the upper surface of the lower sliding rail, a first sliding window is movably connected to the outer wall of the first I-shaped block, fixed blocks are fixedly mounted at the left end and the right end of the inner side of the first sliding window, and the number of the fixed blocks is four. According to the utility model, through the cooperation of the spring, the extension rod, the first sliding window and the lower sliding rail, the elasticity of the spring is utilized, the buffer effect of the movement of the first sliding window under the action of an external force is realized, the shock absorption effect of the first sliding window is achieved, the problem of damage caused by the collision of the first sliding window and the lower sliding rail is effectively solved, the shock absorption of the first sliding window is realized, the acting force generated by the mutual collision of the first sliding window and the lower sliding rail is reduced, and the service lives of the first sliding window and the lower sliding rail are prolonged.

Description

Novel hollow flush sliding window
Technical Field
The utility model relates to the technical field of sliding windows, in particular to a novel hollow flush sliding window.
Background
The sliding window is divided into a horizontal sliding window and a vertical sliding window according to different sliding directions, the horizontal sliding window needs to be provided with rail grooves on the upper part and the lower part of a window sash, the vertical sliding window needs to be provided with pulleys and balance measures, the sliding window has the advantage of not occupying indoor space, has beautiful appearance, economic price and better sealing performance, adopts a high-grade slide rail, slightly pushes the window sash, is flexibly opened, is matched with a large piece of glass, not only increases indoor lighting, but also improves the overall appearance of a building, has good stress state of the window sash and is not easy to damage, but has certain limit on ventilation area, adopts the rail of the window sash provided with the pulleys to slide on a window frame, has the advantages that the window does not occupy extra space no matter in an opening state, has simple structure, is most suitable for high buildings with more than two layers, because the opening mode is a sliding mode, and cannot be outside the window like a casement window, in order to avoid the window falling from high altitude, the sliding window is most suitable for high buildings.
However, the existing sliding window is connected with the lower sliding rail in a clamping manner during installation, when windy weather occurs, the sliding window and the sliding rail are easy to collide due to wind blowing, certain influence is caused on the life of residents due to generated noise, the sliding window and the sliding rail are easy to damage due to collision, and meanwhile, the sliding rail is easy to deform due to frequent collision; when the sliding window is used for a long time, a large amount of dust, particles in the air and wall dust particles on the wall easily exist in the sliding rail, the inside of the sliding rail is not easily cleaned, the impurity amount inside the sliding rail is too much due to long-time accumulation, the friction force of the sliding window and the sliding rail is increased due to the existence of a large amount of impurities, and the service lives of the sliding window and the sliding rail are shortened.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a novel hollow flush sliding window, which has the advantages of conveniently cleaning the interior of a lower sliding rail, avoiding impurity accumulation to increase the friction force between the sliding window and the lower sliding rail, reducing the impact force between the sliding window and the sliding rail caused by strong wind and prolonging the service life of the sliding window, and solves the problems in the background art.
The utility model provides the following technical scheme: a novel hollow flush sliding window comprises a lower sliding rail, wherein a first I-shaped block is fixedly mounted on the left side of the upper surface of the lower sliding rail, a first sliding window is movably connected to the outer wall of the first I-shaped block, fixed blocks are fixedly mounted at the left end and the right end of the inner side of the first sliding window, the number of the fixed blocks is four, a telescopic rod is fixedly mounted on one side of the inner wall of each fixed block, a spring is movably sleeved on the outer wall of each telescopic rod, an extension rod is fixedly sleeved on the outer wall of each telescopic rod, which is far away from one end of each fixed block, a balance block is fixedly mounted on the upper side and the lower side of each extension rod, a round rod is movably sleeved on the inner wall of each balance block, a movable rod is fixedly mounted on the front side of each extension rod, a limiting rod is fixedly mounted at one end, which is far away from each extension rod, of each movable rod, is fixedly mounted on the upper surface of the lower sliding rail, a second I-shaped block is fixedly mounted on the right side of each first I-shaped block, the outer wall swing joint of No. two I-shaped blocks has No. two austral windows, sliding sash that is located austral window, sliding sash right side, No. two austral window, sliding sash keep away from the inside swing joint of No. two I-shaped block one end have No. three I-shaped blocks, the upper end fixed mounting of No. three I-shaped blocks has the last slide rail that is located No. two austral windows, sliding sash top, the left side fixed mounting of bottom surface has No. four I-shaped blocks that are located an austral window, sliding sash upper end inside under the last slide rail.
Preferably, the left and right sides fixed mounting of lower slide rail upper surface has the baffle that is located a austral window, sliding sash and No. two austral window, sliding sash outside, a plurality of hole that leaks has been seted up to the upper surface of lower slide rail, a plurality of apopore has been seted up to the lower extreme on lower slide rail right side, the bottom surface of lower slide rail inner wall sets up the inclined plane of high right-hand low in the left side.
Preferably, a austral window, sliding sash sets up to the H shape, the corresponding recess in position has all been seted up to the inner wall at the upper and lower both ends of austral window, sliding sash, and one side of recess inner wall and one side fixed connection of fixed block, the activity hole has been seted up to one side that the recess was kept away from to a austral window, sliding sash, and the inner wall of activity hole cup joints with the outer wall activity of extension rod, the spout has been seted up in the front of a austral window, sliding sash, and the inner wall of spout cup joints with the outer wall activity of movable rod.
Preferably, both ends fixed connection about the left and right sides of fixed block inner wall and round bar, the rectangular hole of activity hole one side of seting up with a austral window, sliding sash is seted up to one side of fixed block, and the inner wall in rectangular hole cup joints with the outer wall activity of extension rod, the spacing groove that is located the spout back that a austral window, sliding sash was seted up is seted up in the front of fixed block, and the inner wall in spacing groove cup joints with the outer wall activity of movable rod.
Preferably, one end of the spring is fixedly connected with one side of the inner wall of the fixed block, and the end, far away from the fixed block, of the spring is fixedly connected with one side of the inner wall of the extension rod.
Preferably, a round hole is formed in the middle of the balance block, the inner wall of the round hole is movably sleeved with the outer wall of the round rod, and the outer wall of the balance block is movably sleeved with the inner wall of the fixing block.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, through the matching among the spring, the extension rod, the first sliding window and the lower sliding rail and by utilizing the elasticity of the spring, the buffer effect of the first sliding window on the movement of the first sliding window under the action of the external force is realized, the shock absorption effect of the first sliding window is achieved, the problem of damage caused by the collision of the first sliding window and the lower sliding rail is effectively solved, the shock absorption of the first sliding window is realized, the action force generated by the mutual collision of the first sliding window and the lower sliding rail is reduced, and the service lives of the first sliding window and the lower sliding rail are prolonged.
2. According to the utility model, through the matching of the lower slide rail, the first sliding window, the second sliding window and the upper slide rail, and the arrangement of the water leakage hole and the water outlet hole formed in the lower slide rail, the effect of cleaning impurities and dust in the lower slide rail is achieved, the problem that the dust on the outer walls of the first sliding window and the second sliding window cannot be cleaned when falling into the lower slide rail is effectively solved, rainwater and impurities are mixed to flow out of the water outlet hole after falling into the inner wall of the lower slide rail through the water leakage hole of the lower slide rail, the friction force generated by the dust and impurities in the lower slide rail when the first sliding window and the second sliding window move is reduced, and the damage to the first sliding window and the second sliding window is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the lower track of the present invention;
FIG. 3 is a side view of the movable bar of the present invention;
FIG. 4 is a top view of a first i-shaped block of the present invention.
In the figure: 1. a lower slide rail; 2. a first I-shaped block; 3. a first sliding window; 4. a fixed block; 5. a telescopic rod; 6. a spring; 7. an extension pole; 8. a counterbalance; 9. a round bar; 10. a movable rod; 11. a limiting rod; 12. a second I-shaped block; 13. a second sliding window; 14. a third I-shaped block; 15. an upper slide rail; 16. and a fourth I-shaped block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a novel hollow flush sliding window comprises a lower sliding rail 1, a first I-shaped block 2 is fixedly installed on the left side of the upper surface of the lower sliding rail 1, the lower sliding rail 1 is installed to provide a supporting effect for the movement of a first sliding window 3, a first sliding window 3 is movably connected to the outer wall of the first I-shaped block 2, fixed blocks 4 are fixedly installed at the left end and the right end of the inner side of the first sliding window 3, the number of the fixed blocks 4 is four, a telescopic rod 5 is fixedly installed on one side of the inner wall of each fixed block 4, a spring 6 is movably sleeved on the outer wall of each telescopic rod 5, the effect of relieving the first sliding window 3 from external acting force is achieved by the resilience of the spring 6, the shock absorption effect of the first sliding window 3 is achieved, the impact force generated between the first sliding window 3 and the first I-shaped block 2 is reduced, and the noise generated by the impact of the first sliding window 3 is reduced, meanwhile, the damage of a first sliding window 3 and a first I-shaped block 2 caused by collision is reduced, the service lives of the first sliding window 3 and the first I-shaped block 2 are prolonged, an extension rod 7 is fixedly sleeved on the outer wall of one end, far away from the fixed block 4, of the telescopic rod 5, balance blocks 8 positioned inside the fixed block 4 are fixedly installed on the upper side and the lower side of each extension rod 7, a round rod 9 is movably sleeved on the inner wall of each balance block 8, the movement of each balance block 8 on the outer wall of each round rod 9 not only limits the movement of each extension rod 7, but also plays a role in reinforcing the movement of each extension rod 7, the friction between the extension rods 7 and other parts after the movement positions of the extension rods 7 are deviated is avoided, the extension rods 7 always keep the effect of moving in the horizontal direction with the ground, a movable rod 10 is fixedly installed on the front side of each extension rod 7, and a limiting rod 11 positioned outside the first sliding window 3 is fixedly installed at one end, far away from each extension rod 10, installation convenient to use person of gag lever post 11 is to the removal of extension rod 7, the last fixed surface of lower slide rail 1 installs No. two I-shaped blocks 12 that are located No. 2 right sides of I-shaped block, the outer wall swing joint of No. two I-shaped blocks 12 has No. two austral window, sliding sash 13 that is located No. 3 right sides of austral window, sliding sash 13 motion's supporting role is played to No. two, No. two inside swing joint that sliding sash 13 kept away from No. two I-shaped blocks 12 one end has No. three I-shaped block 14, the upper end fixed mounting of No. three I-shaped block 14 has last slide rail 15 that is located No. two austral window, sliding sash 13 top rail 15's installation plays the reinforcing effect to No. 3 and No. two austral window, sliding sash 13 motion and installation stability, the left side fixed mounting of last slide rail 15 bottom surface has No. four I-shaped blocks 16 that are located No. 3 upper ends of austral window, sliding sash.
Wherein, the left and right sides fixed mounting of lower slide rail 1 upper surface has the baffle that is located sliding window 3 and sliding window 13 outsides, the installation of baffle reduces the inside that the dust falls to slide rail 1 down, also provide the support for user's installation screen window simultaneously, the upper surface of lower slide rail 1 has seted up a plurality of hole that leaks, the seting up of hole that leaks provides the passageway for impurity and rainwater fall to the inside of lower slide rail 1 down, a plurality of apopore has been seted up to the lower extreme on lower slide rail 1 right side, the seting up of apopore provides the passageway for the outflow of the mixture of impurity and rainwater formation, the bottom surface of lower slide rail 1 inner wall sets up to the inclined plane of high right-left side, the setting up of inclined plane makes the mixture of impurity and rainwater utilize inertia to flow out the outside of lower slide rail 1 from the department of apopore under the effect of self gravity and external conditions, play the effect of clearing up the dust inside of lower slide rail 1, the timely outflow of the while to the rainwater of lower slide rail 1 inside has still avoided the rainwater to soak and has been to sliding window 3 and no Corrosion caused by sliding window No. two 13.
Wherein, austral window, sliding sash 3 sets up to the H shape, the corresponding recess in position has all been seted up to the inner wall at austral window, sliding sash 3's upper and lower both ends, and one side of recess inner wall and one side fixed connection of fixed block 4, the effect of offering for the installation of fixed block 4 of recess provides the support, the activity hole has been seted up to the one side that austral window, sliding sash 3 kept away from the recess, and the inner wall of activity hole cup joints with the outer wall activity of extension rod 7, the motion of offering for extension rod 7 of activity hole provides the route, the spout has been seted up in the front of austral window, sliding sash 3, and the inner wall of spout cup joints with the outer wall activity of movable rod 10.
Wherein, both ends fixed connection about the left and right sides of 4 inner walls of fixed block and round bar 9, the stability of round bar 9 installation has been consolidated in the installation of fixed block 4, simultaneously also provide support and platform for the installation of round bar 9, the rectangular hole of the movable hole one side of seting up with a austral window, sliding sash 3 is seted up to one side of fixed block 4, and the inner wall of rectangular hole cup joints with the outer wall activity of extension rod 7, the offering of rectangular hole provides passageway and route for the motion of extension rod 7, the spacing groove that is located the spout back that a austral window, sliding sash 3 was seted up is seted up in the front of fixed block 4, and the inner wall of spacing groove cup joints with the outer wall activity of movable rod 10, the offering of spacing groove provides the passageway for the motion of movable rod 10.
Wherein, spring 6's one end and one side fixed connection of 4 inner walls of fixed block, spring 6 keep away from one side fixed connection of one end and extension rod 7 inner walls of fixed block 4, utilize spring 6's connection to play the effect of fixed block 4 and extension rod 7, utilize spring 6's elasticity to change the motion position of extension rod 7 simultaneously.
Wherein, the round hole has been seted up at the middle part of balancing piece 8, and the inner wall of round hole cup joints with the outer wall activity of round bar 9, and the seting up of round hole provides the passageway for the motion of round bar 9, and the outer wall of balancing piece 8 cup joints with the inner wall activity of fixed block 4, and balancing piece 8 has restricted extension rod 7's movement distance simultaneously in the inside motion of fixed block 4.
The working principle is as follows: when the combined type sliding window is used, firstly, when a second sliding window 13 is installed, the limiting rod 11 is pulled to move towards the outside of the second sliding window 13, the limiting rod 11 drives the extension rod 7 to move in the same direction while moving, the extension rod 7 extrudes the telescopic rod 5 and the spring 6 while moving, the extension rod 7 also drives the balance block 8 to move on the outer wall of the round rod 9 while moving, then the second sliding window 13 is clamped on the outer wall of the second I-shaped block 12, then the upper end of the second sliding window 13 is clamped on the outer wall of the third I-shaped block 14, at the moment, the extension rod 7 is driven to be clamped with the left side and the right side of the second I-shaped block 12 and the left side and the right side of the third I-shaped block 14 by the resilience force of the spring 6, then, the first sliding window 3 is installed by using the same method, then, when strong weather occurs, the wind exerts acting force on the second sliding window 13 to enable the second sliding window 13 to be close to impact on the second I-shaped block 12, and the shock absorption effect of the spring 6 is utilized to reduce the impact force of the second sliding window 13 on the second I-shaped block 12, finally, fall to the upper surface of slide rail 1 down when dust and impurity, impurity and dust fall to the inside of slide rail 1 down through the hole that leaks of slide rail 1 down, when meetting the rainy day, the inside in the hole that leaks of rainwater through slide rail 1 down flows to slide rail 1 down, the rainwater is in the inside of slide rail 1 down that flows from the inner wall of the apopore that slide rail 1 offered down under the external condition on slide rail 1 inner wall inclined plane under with the dust after mixing, can accomplish the clearance to the inside impurity of slide rail 1 down and dust.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the utility model, the filling pattern is only used for distinguishing the layers and is not limited at all.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a novel cavity austral window, sliding sash that flushes, includes slide rail (1) down, its characterized in that: the left side fixed mounting of lower slide rail (1) upper surface has I-shaped piece (2), the outer wall swing joint of I-shaped piece (2) has austral window, sliding sash (3) No. one, the equal fixed mounting in both ends of controlling of surveying in austral window, sliding sash (3) has fixed block (4), and the quantity of fixed block (4) is four, one side fixed mounting of fixed block (4) inner wall has telescopic link (5), the outer wall activity of telescopic link (5) has cup jointed spring (6), the outer wall that fixed block (4) one end was kept away from to telescopic link (5) has fixedly cup jointed extension rod (7), the upper and lower both sides fixed mounting of extension rod (7) has balancing piece (8) that are located fixed block (4) inside, the inner wall activity of balancing piece (8) has cup jointed round bar (9), the front fixed mounting of extension rod (7) has movable rod (10), one end fixed mounting that extension rod (7) was kept away from in movable rod (10) has gag lever post (11) that are located a austral window, sliding sash (3) outside, the last fixed surface of lower slide rail (1) installs No. two worker-shaped blocks (12) that are located an worker-shaped block (2) right side, the outer wall swing joint of No. two worker-shaped blocks (12) has No. two austral window, sliding sash (13) that are located a austral window, sliding sash (3) right side, No. two austral window, sliding sash (13) keep away from the inside swing joint of No. two worker-shaped blocks (12) one end have No. three worker-shaped blocks (14), the upper end fixed mounting of No. three worker-shaped blocks (14) has last slide rail (15) that are located No. two austral window, sliding sash (13) top, the left side fixed mounting of bottom surface has No. four worker-shaped blocks (16) that are located an austral window, sliding sash (3) upper end inside under last slide rail (15).
2. The new hollow flush sliding window according to claim 1, characterized in that: the left and right sides fixed mounting of lower slide rail (1) upper surface has the baffle that is located a austral window, sliding sash (3) and No. two austral window, sliding sash (13) outsidely, a plurality of hole that leaks has been seted up to the upper surface of lower slide rail (1), a plurality of apopore has been seted up to the lower extreme on lower slide rail (1) right side down, the bottom surface of lower slide rail (1) inner wall sets up the inclined plane into the height from left to right low.
3. The new hollow flush sliding window according to claim 1, characterized in that: a austral window, sliding sash (3) sets up to the H shape, the corresponding recess in position has all been seted up to the inner wall at the upper and lower both ends of austral window, sliding sash (3), and one side fixed connection of one side of recess inner wall and fixed block (4), the activity hole has been seted up to one side that recess was kept away from in austral window, sliding sash (3), and the inner wall in activity hole cup joints with the outer wall activity of extension rod (7), the spout has been seted up in the front of austral window, sliding sash (3), and the inner wall of spout cup joints with the outer wall activity of movable rod (10).
4. The new hollow flush sliding window according to claim 1, characterized in that: the left and right sides of fixed block (4) inner wall and both ends fixed connection about round bar (9), the rectangular hole of the movable hole one side of seting up with a austral window, sliding sash (3) is seted up to one side of fixed block (4), and the outer wall activity of the inner wall of rectangular hole and extension rod (7) cup joints, the spacing groove that is located the spout back that austral window, sliding sash (3) was seted up is seted up in the front of fixed block (4), and the outer wall activity of the inner wall of spacing groove and movable rod (10) cup joints.
5. The new hollow flush sliding window according to claim 1, characterized in that: one end of the spring (6) is fixedly connected with one side of the inner wall of the fixing block (4), and one end, far away from the fixing block (4), of the spring (6) is fixedly connected with one side of the inner wall of the extension rod (7).
6. The new hollow flush sliding window according to claim 1, characterized in that: the round hole has been seted up at the middle part of balancing piece (8), and the inner wall of round hole cup joints with the outer wall activity of round bar (9), the outer wall of balancing piece (8) cup joints with the inner wall activity of fixed block (4).
CN202123162427.6U 2021-12-16 2021-12-16 Novel hollow flush sliding window Active CN216517587U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123162427.6U CN216517587U (en) 2021-12-16 2021-12-16 Novel hollow flush sliding window

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123162427.6U CN216517587U (en) 2021-12-16 2021-12-16 Novel hollow flush sliding window

Publications (1)

Publication Number Publication Date
CN216517587U true CN216517587U (en) 2022-05-13

Family

ID=81498661

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123162427.6U Active CN216517587U (en) 2021-12-16 2021-12-16 Novel hollow flush sliding window

Country Status (1)

Country Link
CN (1) CN216517587U (en)

Similar Documents

Publication Publication Date Title
CN210033225U (en) Energy-saving safe aluminum alloy door and window
CN216517587U (en) Novel hollow flush sliding window
CN114680436B (en) Outdoor sunshade equipment based on flow of people
CN109930955A (en) A kind of distortion-free aluminum alloy doors and windows of waterproof
CN109138178A (en) A kind of assembled PC building
CN212507911U (en) Semi-hidden frame type inward casement strip window system
CN2353857Y (en) Sliding multifunction combined window
CN210482684U (en) Environment-friendly building curtain
CN113006385A (en) Skylight frame with good stability
CN214740718U (en) Glass curtain wall opening window
CN216042793U (en) Novel high-altitude parabolic protection device
CN214424104U (en) Building curtain wall glass burst replacing device
CN211257477U (en) Energy-concerving and environment-protective type building curtain
CN219011752U (en) Arc awning structure of steel structure building
CN217925525U (en) Flat-open bottom-hung window
CN220319183U (en) Safety protection equipment for building engineering
CN219261553U (en) Rain shielding device for building
CN216981431U (en) Firm type anti-wind antidetonation crane span structure
CN218033681U (en) Air conditioner grid tripe block structure for outer wall
CN113216534B (en) Reinforced structure of municipal garden building's decoration canopy
CN221462192U (en) Window drainage noise reduction device
CN210976548U (en) Rail type windproof hanging basket
CN218438487U (en) Assembled public toilet with windproof structure
CN220301585U (en) Intelligent brightening curtain wall
CN213627229U (en) Aluminum alloy double-sliding window structure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant