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62results about "Rain/draught deflectors" patented technology

Rain-proof and sun-proof window structure

The utility model provides a rain-proof and sun-proof window body structure, which comprises a fixed support, a window body and a window body, and is characterized in that the fixed support comprises a base and side seats arranged on the two sides of the base; the supporting frame comprises a U-shaped frame, the two ends of the U-shaped frame are rotationally arranged on the side seats, and the U-shaped frame is provided with a protection piece with a sunshade function; the protection piece comprises a sliding rod piece and protection soft cloth, the sliding rod piece is composed of a base rod, a balance weight rod and a plurality of traction rods, the sliding rod piece is covered with the protection soft cloth, the base rod, the balance weight rod and the traction rods are parallel to one another, a sliding groove is formed in the U-shaped frame, the base rod is fixed to the end, close to the base, of the sliding groove, and the protection soft cloth is fixed to the U-shaped frame. The balance weight rod and the traction rod slide in the sliding groove. The traction rod and the balance weight rod provided by the utility model are matched with the sliding groove and the rolling piece to complete conversion between the stretching state and the retracting state under the help of gravity, so that the number of moving parts is reduced, the equipment maintenance work is simplified, and the equipment maintenance cost is reduced.
Owner:ANHUI MUXUAN INTELLIGENT MANUFACTURING CO LTD

Door and window with rain shed

The utility model discloses a door and window with a rain cover, which comprises a fixed frame, an inner frame is fixed in the fixed frame, hinges are mounted on two sides of the inner frame, one side of each hinge is movably connected with a door and window main body, a heat preservation mechanism is arranged on the inner side of the door and window main body, and a rain shielding mechanism is arranged above one side of the fixed frame. According to the door and window with the rain cover, the rain shielding mechanism is used in cooperation, in rainy days, the rain shielding cloth can shield rainwater, prevent the rainwater from directly intruding into a room and protect indoor furniture, equipment and personal belongings from being invaded by the rainwater, and in sunny days, the rain shielding cloth can shield part of sunlight, so that indoor light rays are soft; the waterproof cloth can be wound through the arrangement of the winding frame, the user can easily unfold or fold the waterproof cloth according to weather changes through the arrangement of the electric crank arms, and when the waterproof cloth does not need to be used, the waterproof cloth can be rapidly folded.
Owner:CHENGDU SHENGNUO TECHNOLOGY CO LTD

Safe sealing type aluminum alloy window

The utility model relates to the related technical field of aluminum alloy windows, in particular to a safe sealing type aluminum alloy window which comprises a window frame, a window sash body, a lock body, a hollow glass body, an elastic element, a multi-layer sealing component, a water baffle and a drainage component. According to the safe sealing type aluminum alloy window, the window sash body is locked or opened through the lock body, the air tightness and the waterproofness of the window in the closed state are guaranteed through the elastic element and the multiple layers of sealing components, the water baffle and the drainage component further prevent rainwater from invading, and accumulated water is drained in time; therefore, the overall usability and the service life of the window are improved.
Owner:NANJING JINFANG DOORS & WINDOWS CO LTD

High-low rail sliding window with good sealing performance

The utility model discloses a high-low rail sliding window with good sealing performance. The high-low rail sliding window comprises an outer window frame; the water retaining chute device is assembled on the outer window frame and is used for retaining water and preventing dust; the aluminum alloy moving window is assembled in the outer window frame; according to the device, through water retaining, it is ensured that all aluminum alloy moving windows and movable window assemblies are closed and locked, so that rainwater is prevented from entering a room; whether the water retaining sliding groove device is intact or not and whether the water retaining plate, the first wool top hole and the second wool top hole are installed correctly or not are checked, so that the effective water retaining effect is ensured; when rainwater enters the water retaining sliding groove device, water outlet holes in the first high sliding groove rail, the second high sliding groove rail, the first bottom sliding groove rail and the second bottom sliding groove rail play a role in water drainage; rainwater is discharged through the water outlet holes, so that the problems of accumulated water and potential leakage are reduced; and whether the water outlet holes are unobstructed or not is checked regularly to ensure that rainwater can be drained smoothly, so that the rainwater is prevented from being splashed back into the window.
Owner:HUANGSHI FUXING ALUMINUM

Window with built-in sunshade structure

The utility model belongs to the technical field of windows, in particular to a window with a built-in sunshade structure, which comprises a window body, one side of the window body is provided with a wind blocking piece, one side of the wind blocking piece is fixedly connected with a reflective patch, one end of the wind blocking piece is fixedly connected with a limiting inserting plate, one side of the window body is provided with two connecting frame shells, and the connecting frame shells are fixedly connected with the reflective patch. Wherein one side of one connecting frame shell is fixedly connected with a protective shell, one side of the other connecting frame shell is fixedly connected with a positioning connecting block, the limiting inserting plate is detachably connected with the positioning connecting block, and two adjustable connecting rods which are hinged to each other are hinged between the window body and the connecting frame shells. A limiting inserting plate and a torsional spring winding roller can block direct light and direct current wind at the window through expansion of the wind blocking piece and the light reflecting patch, and the position and angle of the wind blocking piece and the light reflecting patch are adjusted in cooperation with an adjustable connecting rod, so that the brightness and the ventilation quantity in a room can be adjusted on the basis of blocking the direct light and the direct current wind.
Owner:HUNAN ZHONGGE ENERGY SAVING DOORS & WINDOWS CO LTD

Doors and fittings

To provide building components that can improve water resistance. [Solution] The joinery comprises an upper frame 11, an upper stile 21 positioned below the upper frame 11, and a flashing material 52 provided on either the upper frame 11 or the upper stile 21 and in contact with the other contact surface 215a of the upper frame 11 and the upper stile 21, wherein the upper frame 11 has a first flashing wall portion 111 positioned along the vertical direction Z on the outdoor side Y1, an upper wall portion 114 extending from above the lower end portion 111d of the first flashing wall portion 111 toward the indoor side Y2, and a second flashing wall portion 115 extending downward from the upper wall portion 114 and positioned on the indoor side Y2 of the first flashing wall portion 111, the second flashing wall portion 115 positioned on the outdoor side Y1 of the contact surface 215a, and the joinery is a vertical sliding window or a casement window.
Owner:LIXIL CORP

Outward opening type door and window system

The invention relates to the technical field of doors and windows, in particular to an outward opening type door and window system. Comprising a fixing frame and an anti-falling module, the anti-falling module comprises a first support, a second support, inserting rods, a threaded rotary knob, a connecting rope and a rotating mechanism, during use, a diamond net is opened firstly, then window opening is achieved by pushing an outer frame, then the two inserting rods connected through the connecting rope are inserted into the first support and the second support correspondingly, and the rotating mechanism is rotated by the threaded rotary knob; the threaded knob is installed at the bottom of the inserting rod for limiting matching, the length of the connecting rope can facilitate rotation and position adjustment of the outer frame, when the outer frame falls off due to falling of hinge connecting bolts and the like, the outer frame can be prevented from directly falling off through the arranged connecting rope, and falling prevention is achieved; therefore, the problem that an outer frame of an existing outward-opening door and window is not provided with an anti-falling mechanism, and the safety is poor when the anti-falling mechanism is used in a high-rise building is solved.
Owner:SICHUAN DIZHUO JINJI CONSTRUCTION CO LTD

Aluminum alloy door and window with drainage mechanism

The utility model relates to the technical field of aluminum alloy doors and windows, in particular to an aluminum alloy door and window with a drainage mechanism, which comprises a window frame main body, a glass assembly and the drainage mechanism. The drainage mechanism is provided with a flow guide groove, a drainage plate, a driving assembly and a connecting rod mechanism, the flow guide groove collects rainwater, the drainage plate drains the rainwater through movement, and the driving assembly controls the drainage plate to act so as to enhance the drainage and cleaning effects. A protective cover is arranged at the top of the window frame body, a water collecting tank and a drainage pipe are arranged at the bottom, and a humidity sensor is arranged inside to achieve intelligent control. Water accumulated in the window frame can be rapidly discharged, dirt accumulation and corrosion are reduced, the sealing performance is improved, meanwhile, the automatic cleaning function is achieved, operation is convenient and efficient, and the service life of doors and windows is remarkably prolonged.
Owner:GANSU HUAYI DOOR WINDOW & CURTAIN WALL ENERGY-SAVING TECH CO

Doors and fittings

To provide building components with higher watertightness. [Solution] In a joinery in which a facing material is housed inside a frame formed by joining vertical and horizontal frames, the vertical frame and the horizontal frame each have a receiving groove for accommodating the peripheral end of the facing material, a visible surface forming the bottom of the receiving groove, and a restricting projection provided along the longitudinal direction that protrudes from the visible surface into the frame and restricts the movement of water that has entered from the outside into the inside, the restricting projection is provided at a position opposite to the outer peripheral end surface of the facing material, and a drainage hole is provided on the visible surface of the horizontal frame located below the facing material, on the outside side of the restricting projection.
Owner:YKK AP INC

A weatherproof aluminum alloy door and window structure

This utility model relates to the field of door and window technology, and discloses a weatherproof aluminum alloy door and window structure, including a frame. Windows are slidably connected to the front and rear ends of the inner side of the outer wall of the frame. A slider is fixedly connected to the bottom wall of the front window. A rack is fixedly connected to the front end of the inner side of the outer wall of the frame. Gears are meshed on the left and right sides of the top wall of the rack. Two gears are rotatably connected to the left and right sides inside the slider. A rotating shaft is fixedly connected to the middle of the front side of the outer wall of the gear. A roller brush is fixedly connected to the outer wall of the rotating shaft. A sliding groove is fixedly connected to the front end of the inner side of the outer wall of the frame. In this utility model, the sliding groove at the bottom of the slider slides on the guide rail of the frame, and the internal gears roll on the rack, driving the rotating shaft and the roller brush to rotate. The roller brush cleans the frame, removes dust and debris, and prevents the drain holes from clogging. The drain groove can be cleaned by opening and closing the window, thus preventing debris from clogging the drain holes.
Owner:GUANGDONG JIAHUA ALUMINIUM CO LTD

Door and window lower frame structure with water baffle

The utility model discloses a door and window lower frame structure with a water baffle. The door and window lower frame structure is mainly composed of a lower frame body, the water baffle arranged on the side face of the lower frame body and a blocking edge arranged on the outer side face of the lower frame body and used for blocking the upper edge of the water baffle. The lower edge of the water baffle is lower than the plane where the bottom of the lower frame body is located. The retaining side arranged on the lower frame main body can effectively shield the upper edge of the water baffle arranged on the outer side face of the lower frame main body, and a gap between the water baffle and the side face of the lower frame main body and an interface gap existing among the connecting clamping groove, the water baffle and the side face of the lower frame main body can be prevented from being exposed outside. When rainwater slides off from the outer surface of the door and window, as the edge of the retaining side is lower than the upper edge of the water baffle, the rainwater can vertically flow to the connecting plate of the water baffle under gravity and cannot cross the water baffle to enter the lower bottom of the frame of the door and window, so that the leakage of the rainwater is effectively blocked.
Owner:CHENGDU GUOCHUANG DOORS & WINDOWS CO LTD

Aluminum alloy fixed rainproof shutter with high connection stability

The utility model relates to the technical field of shutter, disclose a kind of aluminium alloy fixed rainproof shutter of high connection stability, including installation component, the installation component includes aluminium alloy mounting bracket, the both sides of aluminium alloy mounting bracket are fixedly installed with mounting plate.The utility model is by being installed in the limiting screw with first fixed plate, since first fixed plate is at the periphery of the front end of shutter component, and first fixed bolt is twisted, and the fixing of shutter component can be completed, and second fixed plate is same with first fixed plate, and it is installed in the other side of limiting screw, and second fixed bolt is twisted, and the installation of rainproof component can be completed, by the design of modularization, when shutter component or rainproof component is damaged, it can be individually replaced, reduce equipment cost, and when installation, the mode of clamping and bolt fixing is easy to operate, when disassembling, each connecting component can also be conveniently released, not only save the time of installation and maintenance, but also reduce labor cost.
Owner:TANGSHAN DINGLI DOORS & WINDOWS ENGINEERING CO LTD

Sliding door or sliding window

A sliding door (1) or sliding window installable in a vertical alignment in a building opening comprising at least the following: a) at least one sliding wing (3) comprising a wing frame (301), b) a blind frame (2) that is fixable to the building, the blind frame (2) comprising at least one guide rail (5, 6) on which the at least one sliding wing (3) is slideably guided, c) wherein the wing frame (301) of the sliding wing (3) is sealed against the blind frame (2) at least at its lower frame end in the mounted position, is characterised by the fact that d) at least one lifting seal (8) is provided on the blind frame (2), which can be applied to the wing frame by a device (9) assigned to it for lifting and lowering the lifting seal (8) into a sealing position, e) the device (9) for lifting and lowering the lifting seal (8) can be actuated by the sliding wing (3) itself as a drive or by a separate drive, wherein the sliding wing (3) can be moved from an open position into a closed position and vice versa and wherein the lifting seal (8) can be brought from an unsealed position into a sealed position and vice versa by means of the device (9) for lifting and lowering the lifting seal (8).
Owner:SCHUECO INTERNATIONAL KG

Bidirectional buffer type quickly-mounted shower room

The utility model provides a bi-directional buffering type quick installation shower room which is characterized by comprising fixed glass, movable door glass, an upper rail, two vertically arranged wall material edge strips and buffers, the upper rail is transversely arranged, the two ends of the upper rail are fixedly connected with the wall material edge strips, the buffers are arranged at the two ends in the upper rail, and the two ends of the upper rail are fixedly connected with the wall material edge strips. The fixed glass and the movable door glass are arranged in parallel, one side edge of the fixed glass is fixed to the wall material edge strip, a first water retaining strip is fixed to the other side edge of the fixed glass, the two corners of the upper end of the movable door glass are connected with buffering pulleys, the buffering pulleys are further installed in the upper rail to transversely slide, and a towel rod is installed on the fixed glass. And a handle is mounted on the movable door glass. Buffers are installed at the two ends of the upper rail, so that the movable door glass slowly enters and exits during transverse movement, and collision sound cannot be generated.
Owner:PINGHU LEYOU SANITARY WARE CO LTD

Sliding window structure

The utility model discloses a sliding window structure which comprises a guide rail and a window frame installed on the guide rail, the window frame is provided with an installation groove, an idler wheel is installed in the installation groove, the side wall of the installation groove forms a first side plate, the guide rail is provided with a guide groove allowing the window frame to be embedded, and the center of the guide groove is provided with a guide block stretching into the installation groove to abut against the idler wheel. The side wall of the guide groove forms a second side plate, the first side plate extends into the second side plate, a first wind shielding piece is arranged on the face, facing the first side plate, of the second side plate, and a second wind shielding piece abutting against the first wind shielding piece is arranged on the face, facing the second side plate, of the first side plate. When no wind exists, the first wind shielding piece abuts against the second wind shielding piece, the window frame can move freely while the sealing performance is guaranteed, and the influence of abutting of the first wind shielding piece and the second wind shielding piece on movement of the window frame is small. When wind exists, the first wind shielding piece can be blown by the wind to be tightly attached to the first wind shielding piece, so that the sealing performance between the first wind shielding piece and the second wind shielding piece is greatly improved, and the warm keeping effect is guaranteed.
Owner:SHAOXING MEILE DECORATION CO LTD

Steel structure building curtain wall and operation method thereof

The application discloses a kind of steel structure building curtain wall construction technology and its operating method, including curtain wall body, curtain wall body is the plate structure of window opening, the window of curtain wall body is installed with mounting block in upper portion, mounting block is the strip structure of its inside being opened with groove, sealing plate is slidably embedded in the groove of mounting block, multiple down springs are connected on the upper portion of sealing plate, fixed column is installed in the lower portion of mounting block, rotatable sleeve rotatable column is had on fixed column, rotatable window is installed in the lower end of rotatable column, rotatable connection is had in the upper portion of both sides of rotatable window inboard, folding fan structure is installed on side baffle, folding fan structure and rotatable window are connected, and elastic rope is connected between the lower portion of side baffle and the lower portion of rotatable window.There is advantage in preventing outside rainfall from entering through the gap between rotatable column and mounting block, shielding both sides of rotatable window, avoiding rainwater from entering through both sides, structure is convenient to implement, the effect of preventing rainwater from entering window is realized.
Owner:CHINA MCC17 GRP CO LTD

Energy-saving door and window with waterproof design

ActiveCN224093312UConditions that affect sealingImprove waterproof performancePinsNutsRubber ringSash window
The utility model provides an energy-saving door and window with a waterproof design, which relates to the technical field of doors and windows and comprises a window frame, a window sash is arranged on one side of the window frame, a waterproof device is arranged on one side of the window frame, and the waterproof device is used for preventing water at the joint of the window frame and the window sash. The waterproof device comprises a fixing plate, a bolt, a placing frame and a rubber ring, the fixing plate is arranged on one side of the window frame, the waterproof device is used, the side, close to the outdoor space, of the window frame can be sealed and waterproof, rainwater is prevented from accumulating at the connecting position of the window frame and the window sash, and then the connecting position of the window frame and the window sash is prevented from being corroded; therefore, the waterproof effect of the door and window can be improved, and then the using effect of the door and window is improved. And by using the protection assembly, the bolt can be shielded and protected, corrosion of rainwater to the bolt is reduced, and therefore the service life of the bolt can be prolonged, and the use effect of the waterproof device is improved.
Owner:JINAN GANGSHENG CONSTR ENG CO LTD

Drainage structure of aluminum alloy window

The utility model discloses a drainage structure of an aluminum alloy window. The drainage structure comprises a window frame, a window groove, a window body and a water accumulation prevention drainage mechanism. The water-accumulation-preventing drainage mechanism is arranged at the bottom end of the front portion of the window frame, accumulated water in the window groove is drained from the drainage connector in a centralized mode through the precipitation groove, the flow guide cover is arranged outside the drainage connector in a butt joint mode, and rainwater drained from the drainage connector can move outwards along the flow guide cover out of the range of a windowsill and then is drained. The flow guide cover can cover the windowsill at the bottom of the window frame, the rain shielding effect is achieved, the rainwater is prevented from dripping into the windowsill to generate accumulated water, the top of the flow guide cover is arranged to be an inclined face, the rainwater can be effectively guided to leave the range of the windowsill, and the rainwater is prevented from being accumulated in the windowsill. The wind shield is welded to the top face of the front portion of the flow guide cover, the wind shield can prevent rainwater in the flow guide cover from being blown by wind to flow backwards, and normal drainage of the flow guide cover is guaranteed.
Owner:QUANZHOU TIANCHENG ALUMINUM TECH CO LTD

Door slot windshield strip

The utility model discloses a door slot windshield strip, and relates to the technical field of windshield strips. The anti-theft door comprises cloth, a foam strip, a first hook-and-loop fastener, an elastic supporting strip, a metal piece and a magnet, the cloth is installed on the door through the first hook-and-loop fastener, the foam strip is filled in the cloth to form a blocking part, and the blocking part is arranged on the ground to block a gap between the door and a floor. The elastic supporting strip is installed on the door, located below the first hook-and-loop fastener and used for jacking the cloth so that the blocking part can be separated from the ground, and the metal piece is installed on the surface of the cloth and matched with the magnet installed on the ground so that the blocking part can be tightly attached to the ground. The utility model has the beneficial effects that the elastic support strip automatically jacks the cloth when the door is opened, so that the blocking part is separated from the ground, the friction with the ground is avoided, the abrasion is obviously reduced, and the service life of the wind blocking strip is prolonged; the metal piece is matched with the magnet when the door is closed, so that the blocking part is tightly attached to the ground, and cold air at a door slot is effectively prevented from entering a room; and the comfort and cleanliness of the indoor environment are improved.
Owner:XIAMEN KAISHENG PACKAGING MATERIAL CO LTD

A rainproof and water-blocking structure for the bottom frame of doors and windows

This utility model discloses a rainproof and water-blocking structure for the lower frame of doors and windows, mainly composed of a water-blocking plate, a slot seat, and a snap-on edge with a snap-on head at one end and fixedly connected to the water-blocking plate at the other end. The slot seat has an upper fixed end and a lower fixed end located below the upper fixed end. The water-blocking plate is connected to the upper fixed end through its upper edge, and the snap-on edge is connected to the lower fixed end through its snap-on head. This utility model guides rainwater flow through the physical structure of the water-blocking plate, rather than relying on chemical waterproofing methods such as sealant to achieve waterproofing. Therefore, it reduces the dependence on auxiliary waterproofing methods such as sealant and significantly improves the reliability of waterproofing.
Owner:CHENGDU GUOCHUANG DOORS & WINDOWS CO LTD

Windproof rod device and screen door window thereof

The utility model discloses a windproof rod device and a screen door and window thereof, the windproof rod device comprises a windproof rod body and a windproof rod fixing seat fixed at one end of the windproof rod body, and the windproof rod fixing seat is fixed at one end, far away from a screen box, of a screen door and window guide rail; a round head guide face is arranged at the end, away from the windproof rod fixing base, of the windproof rod body. The round head guide face can still be sleeved with the sleeve when the gauze element is retracted into the gauze box, and the sleeve is arranged on the windproof rod body in a sliding mode. The screen door and window comprises a rail and a screen box structure arranged at one end of the rail, and the windproof rod device is arranged in the guide rail. The gauze element is reasonable in structural arrangement and simple in overall structure, the sleeve on the sliding edge of the gauze element is slidably arranged on the windproof rod body, the friction coefficient and friction noise can be reduced, the pull rod can be prevented from inclining when the pull rod is pulled, and therefore the sliding smoothness of the gauze element is improved, the gauze element is not prone to being damaged or broken, and the service life of the overall structure is prolonged. And the applicability is high.
Owner:CHANGSHA FUTURE SPACE TECH CO LTD

Anti-leakage aluminum profile door and window

The utility model relates to the technical field of aluminum profile doors and windows, and discloses an anti-leakage aluminum profile door and window. Comprising an aluminum profile door and window frame and an aluminum profile door and window body, the aluminum profile door and window body is fixedly connected to the interior of the aluminum profile door and window frame, and an auxiliary anti-leakage mechanism is arranged on the side wall of the top end of the aluminum profile door and window frame and comprises a water collecting branch pipe fixedly connected to the side wall of the top end of the aluminum profile door and window frame; anti-leakage boxes are symmetrically and fixedly connected to the positions, located at the two ends of the water collecting branch pipe, of the side wall of the top end of the aluminum profile door and window frame, the two anti-leakage boxes communicate with the interior of the water collecting branch pipe, and two first water guide plates are symmetrically and fixedly connected to the inner side wall of the bottom end of the water collecting branch pipe; an inclined plate is fixedly connected to the inner wall of the bottom of the water collecting branch pipe and located between the two first water guide plates. Through the characteristic that the two ends of the inclined plate are low, the inclined plate is matched with the first water guide plates on the two sides to flow towards one side of the anti-leakage box until water flow falls down from the sewer pipe, and water flow collection and rapid drainage are achieved.
Owner:ANHUI TIANFA ALUMINUM CO LTD

Water apron for exterior wall and waterproof structure for exterior wall

This utility model discloses an exterior wall drip edge and an exterior wall waterproofing structure, specifically relating to the field of building technology. It includes a bent plate, wherein the vertical rear portion of the bent plate has a sliding groove, and the upper horizontal portion of the bent plate has several water-guiding grooves. Both ends of the bent plate are fixedly connected to splicing components, and the lower end of the horizontal portion of the bent plate is fixedly connected to a sound insulation component. The exterior wall drip edge and exterior wall waterproofing structure of this utility model, through a locking mechanism, can adopt a "insert-rotate adjustment" quick installation mode, significantly shortening the construction cycle. It avoids the problems of difficult separation after adhesive aging or leaving marks on the wall due to drilling fixation, significantly reducing later maintenance costs and difficulty. The splicing components can adapt to different window and exterior wall lengths, and can be freely combined through standard modular units. Extension can be achieved by adding splicing units without the need for customization, greatly improving construction flexibility.
Owner:KUNMING UNIVERSITY

Door of spherical sunlight room

The utility model relates to the technical field of spherical sunlight rooms, in particular to a door of a spherical sunlight room, which comprises a spherical sunlight room main body, a honeycomb frame is fixedly mounted on the upper side of the spherical sunlight room main body, a glass window is fixedly arranged on one side of the honeycomb frame, and two arc grooves are symmetrically arranged at two ends of the spherical sunlight room main body. According to the anti-theft door disclosed by the utility model, rainwater can be better intercepted by enabling the glass baffle plate which is adjusted by rotating downwards, so that the situation that the rainwater is in contact with the door is reduced, and the door can be protected; and then the glass baffle can further adjust the rain shielding angle to improve the rain shielding effect of the room door, the overall service life of the spherical sunlight room is prolonged, and a U-shaped rubber strip on the first glass door can be embedded into a U-shaped groove in the room door, so that the U-shaped rubber strip can play a role in sealing and heat preservation.
Owner:HOWBROAD ECO-TECH (GUANHDONG) CO LTD