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41results about "Finger guards" patented technology
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Pressure relief window for dust-free workshop
The utility model relates to the technical field of building doors and windows, in particular to a pressure relief window for a dust-free workshop, which comprises a frame body, an upper pressure relief window is movably arranged on the side surface of the frame body, and a lower pressure relief window is movably arranged on the side surface of the frame body and is movably arranged at the bottom of the upper pressure relief window. The window body is designed to be divided into the upper pressure relief window and the lower pressure relief window, the upper pressure relief window and the lower pressure relief window are used in cooperation with the anti-clamping piece, and when the window body is not completely closed, the upper pressure relief window and the lower pressure relief window keep relatively independent movement through the movable connecting structure, so that the risk that workers are pinched in the window body closing process is effectively avoided, and the operation safety is remarkably improved; according to the pressure relief window, the window body can smoothly move in the initial stage and is hardly influenced by resistance, and when the window body is close to the frame body, the window body is prevented from violently colliding with the frame body, so that the impact force and noise between the window body and the frame body are effectively reduced, and the service life of the pressure relief window is remarkably prolonged.
Owner:GUANGDONG HUAMAO CONSTRUCTION ENGINEERING CO LTD
Armored entrance door with anti-pinch function
The utility model discloses an armored entrance door with an anti-pinch function, which relates to the technical field of armored entrance doors and comprises a door frame unit. The door leaf unit is arranged on the outer surface of the door frame unit and used for protection, the door frame unit comprises an installation assembly and a protection assembly arranged in the installation assembly, and the door leaf unit comprises a door leaf assembly arranged on the outer surface of the door frame unit and a clamping assembly arranged on the outer surface of the door leaf assembly. The mounting assembly comprises a frame structure, and a mounting groove is formed in the inner wall of the frame structure. By adopting the frame structure, the anti-pinch cloth belt, the guide roller I, the guide roller II, the wind-up roller, the torque spring and the rotating shaft seat are matched with one another, so that the door leaf unit can be conveniently mounted and fixed, and meanwhile, when an entrance door opening and closing door is used, a protection effect can be achieved; the steel plate door, the protection steel plate, the door lock and the clamping assembly are matched with one another, so that the protection effect can be achieved in the opening and closing process of the entrance door.
Owner:SHANGHAI HEMING DOOR IND CO LTD
Aluminum alloy window with anti-pinch structure
The utility model discloses an aluminum alloy window with an anti-pinch structure, and relates to the technical field of aluminum alloy windows. The sliding door and window comprises an installation frame, fixing mechanisms are arranged on the two sides of the installation frame, two sliding grooves are formed in the bottom of the inner wall of the installation frame, and sliding door and window bodies are arranged in the two sliding grooves in a sliding fit mode. Sliding grooves are formed in the bottoms of the inner walls of the sliding grooves, and elastic pieces are arranged on one sides of the inner walls of the sliding grooves. The sliding inclined plate can provide reliable guarantee for safe use of the sliding door and window, when the sliding door and window is closed, the transmission piece drives the sliding inclined plate to move synchronously, and the inclined surface structure of the sliding inclined plate abuts against the second inclined surface at one end of the extrusion block. And the transmission pushes the sliding plate to slide out of the cavity of the mounting frame through the second inclined surface at the other end of the extrusion block, so that the buffer sponge cushion synchronously extends to the side surface of the frame body, and therefore, in the door and window closing process, the buffer sponge cushion can effectively prevent the door and window from being in direct contact with the hand of the human body, and the hand clamping risk is remarkably reduced.
Owner:ZHEJIANG HAINA ARCHITECTURAL DECORATION ENG CO LTD
Fixed clamping structure for door plate
Owner:SHANDONG GUANGYIN ALUMINUM CO LTD
Device for guiding a saw blade when sawing a finger protection profile, arrangement and door
Owner:ATHMER
Double-bevel-edge child protection craft wooden door
The utility model relates to the technical field of craft wooden doors, and discloses a double-bevel-edge child protection craft wooden door which comprises a check block rotationally connected to the front side wall of a mounting plate through a rotating shaft. The supporting plate is fixedly connected to the front side wall of the mounting plate; the baffle is fixedly connected to the bottom of the stop block; the frame body is fixedly connected to the front side wall of the mounting plate; the spring is fixedly connected to the inner bottom surface of the frame body; the limiting block is fixedly connected to the top of the spring. After the door body is opened, the pull rod is pulled downwards firstly, the pull rod drives the limiting block to retract into the frame body, the spring is compressed, then the handle is held by hand, the check block is rotated from the vertical direction to the transverse direction, the supporting plate supports the check block, the check block rotates to the right side area of the limiting block at the moment, a guardian loosens the pull rod, and the spring drives the limiting block to pop up upwards; the baffle is limited by the limiting block, at the moment, the baffle blocks the opened door body, the door body is prevented from being completely closed, a certain gap is reserved, the hands of a child are prevented from being pinched, and the child is prevented from being accidentally locked in a room.
Owner:CHONGQING QIANSHU WOOD IND CO LTD
Folding door hinge and functional entity comprising a folding door
Owner:HAWA SLIDING SOLUTIONS AG
Door structure
To provide a door structure excellent in sound insulation.SOLUTION: The door structure includes a frame body having a door end side vertical frame 5, and a door body 2 rotatably connected to the frame body, and the door end side vertical frame 5 has a side face part 51 extending to the D2 in the frame thickness direction. The door body 2 has a door tail-side end surface D4 that extends toward the B1 in the door thickness direction, and an opening-side corner B1 that extends from an opening-side side edge B1a of the door tail-side end surface B2. A gap G is provided between the door body 2 and the door tail-side vertical frame 5 at the width-direction D1 portion of the frame body regardless of the rotation angle of the door body 2. When the door body 2 is in the fully closed position, the gap G is defined by the door tail-side end surface B1 of the door body 2 and the side surface portion 51 of the door tail-side vertical frame 5, which face each other, and the size of the gap G is 2. 0mm to 7. 0mm.SELECTED DRAWING: Figure 2
Owner:RIKO IND CO LTD
Novel anti-pinch floor spring door
The utility model relates to the technical field of floor spring doors, and discloses a novel anti-pinch floor spring door which comprises a floor spring door body, a contraction sliding groove is formed in one end of the floor spring door body, and a contraction mechanism is arranged in the contraction sliding groove. The contraction mechanism comprises a protection sliding plate slidably connected with the interior of the contraction sliding groove and a contraction spring arranged in the contraction sliding groove, the two ends of the contraction spring are fixedly connected with the inner side wall face of the contraction sliding groove and the outer wall face of the protection sliding plate correspondingly, and a protection mounting groove is formed in the end, away from the floor spring door body, of the protection sliding plate. The protection mechanism comprises two protection conveying rollers rotationally connected with the two ends of the interior of the protection mounting groove, a protection conveying belt connected between the two protection conveying rollers and a protection rubber pad fixedly connected to the outer side wall face of the protection conveying belt. Through the arrangement of the contraction mechanism and the protection mechanism, the situation that the skin of the hand of a child is scratched and injured with the floor spring door body is avoided, and the protection function of the equipment is improved.
Owner:HUBEI JIECHENG DOOR IND CO LTD
Cushion member mounting structure
To provide a cushion material mounting structure capable of maintaining appearance design and reducing cost.SOLUTION: In a cushion material mounting structure 10, first and second attachments 2131, to which a cushion material 4 is mounted are fixed to a door body 3 side by side along an edge part 3A of the door body 3. The first attachment 21 includes a first base portion 22, a pair of first attachment portions 23 provided on the first base portion 22, and a pair of width portions 24 protruding outward in the width direction from the first base portion 22. The second attachment 31 includes a second base portion 32 and a pair of second attachment portions 33 provided on the second base portion 32. The first attachment 21 forms a space 20 in which a functional component can be disposed between the pair of width portions 24. The cushion material 4 covers the first and second attachments 2131, and is attached to the pair of first and second attaching portions 2333,. The pair of width portions 24 protrude outward in the width direction from the second attachment 31.SELECTED DRAWING: Figure 1
Owner:YKK AP INC
Anti-pinch safety edge structure of double-leaf steel structure civil air defense door
The utility model discloses an anti-pinch safety edge structure of a double-leaf steel structure civil air defense door. The anti-pinch safety edge structure comprises a door frame and a door leaf movably installed on the door frame. The door is characterized by further comprising a protective structure which is arranged on the door leaf and used for preventing hands from being pinched. The protection structure comprises empty grooves which are formed in the door leaves and located on the inner sides of the door leaves, and after the two door leaves are folded, an anti-pinch empty groove is formed between the two door leaves. Through the arrangement of the protection structure, when the door leaf is closed, the hand clamping accident is avoided, the safety protection effect is achieved, and the use safety is improved.
Owner:HANGZHOU HONGSHUN CIVIL AIR DEFENSE EQUIP CO LTD
Safety devices for switchgear and switchgear
To provide a safety device for an opening / closing device which is capable of relieving impact upon collision thereto and which is improved in durability.SOLUTION: A safety device 10 for an opening / closing device 1 includes a moving part 721 which can open / close an opening part 20a by an opening / closing movement of a door body 30 and moves by the opening / closing movement of the door body 30, and a stopper part 80 with which the moving part 721 collides so as to temporarily stop the opening / closing operation of the door body 30 when the door body 30 is moved at a specified speed or more, the stopper part 80 having a metallic part 82 with which the moving part 721 collides and a buffer material 83 disposed on the side opposite to the moving part 721 in the metallic part 82.SELECTED DRAWING: Figure 6
Owner:LIXIL CORP
Device for covering front and rear gaps of rotary shaft in swing door
The present invention relates to a device for covering the front and rear gaps of a rotary shaft of a swing door, which prevents the occurrence of accidents caused when a finger is caught in a gap generated between a swing door rotating around a hinge and a door frame. The device for covering the front and rear gaps of a rotary shaft of a swing door, according to the present invention, comprises a first hard cover plate (110) of a planar shape and a second hard cover plate (120) of a curved shape, which are connected via a first soft joint piece (130), wherein the first hard cover plate (130) and a connection piece (161) of a coupling member (160) are connected via a second soft joint piece (140), a head portion (163) of the coupling member (160) is inserted and coupled into a hollow portion (184) via an opening (185) in a support bar (180), and the second hard cover plate (120) and a fixing plate (170) are connected via a third soft joint piece (150).
Owner:KIM SEO YEON
Anti-pinch device for commercial induction revolving door
The anti-pinch device for the commercial induction revolving door comprises a door seat, a door opening is formed in one side of the door seat, a revolving door body is rotationally connected into the door seat, an opening fixing seat is fixedly installed on one side of the door opening, a movable seat rotating shaft is rotationally connected to one side of the door opening, and the movable seat rotating shaft is fixedly connected to the other side of the door opening. And an opening movable seat is fixedly mounted on the outer side of the movable seat rotating shaft. The rotating angle of the opening movable seat can be adjusted through the movable seat rotating shaft, and then the opening movable seat is fixed through the matching relation of the shielding head and the ratchet groove, so that the distance between the shielding head and the door frame is changed, or the door frame is clamped through the shielding head to achieve locking operation of the rotating door body. And the length of the groove of 30-180cm is adaptive to the use requirements of children, adults, old people and high or short people, and the gap between the groove and the opening movable seat can be widened, so that the hand clamping prevention protection can be further carried out on the personnel.
Owner:NANJING JINFUYUAN AUTOMATIC DOOR TECH CO LTD
Anti-pinch and anti-theft door
The utility model discloses a kind of anti-pinch hand security doors, including door frame, the inside of door frame is rotatably installed with door leaf by fixed link, the top of the side of door frame and door leaf is equipped with automatic door closer, the side of door leaf is installed two groups of anti-pinch components, the middle part of fixed link is fixedly installed with two groups of gear for door leaf rotation limit, anti-pinch component includes movable plate and is movably installed in the side of door leaf, the middle part of movable plate is fixedly installed with push rod, and one end of push rod is movably penetrated to the other side of door panel, and one end of push rod is fixedly installed with gear plate, gear plate is located on the outside of gear.The utility model when closing door, if palm is placed in door gap, movable plate will be extruded and move, while movable plate moves, gear plate is engaged and connected by push rod, because gear is fixedly installed on fixed link, gear immediately limits the rotation of gear plate, door leaf will immediately stop rotating, to effectively reduce the situation of hand clamping, improve the security of security door.
Owner:YONGKANG FUDA DOORS CO LTD
Doors and windows
To provide a door or window fixture that can prevent finger pinching and is easy to install. [Solution] A door that can be opened and closed by the rotation of a door body attached to a mounting frame having a first vertical frame, a second vertical frame, an upper frame, and a sill via a connecting member, wherein the connecting member comprises a first connecting member having a first round bar member extending vertically from the end of the upper frame on the first vertical frame side, and a second connecting member having a second round bar member extending vertically from the end of the sill on the first vertical frame side, the door body having a first round bar receiving recess on its upper surface that engages with the first round bar member, and a second round bar receiving recess on its lower surface that engages with the outer circumference shape of the second round bar member, the door body being connected to the upper frame by the first connecting member and to the sill by the second connecting member, and in a top view, the center of the first round bar member, the center of the second round bar member, the center of the first round bar receiving recess, and the center of the second round bar receiving recess are the same.
Owner:阿 部 春 一
Cushion member mounting structure and cushion member
To provide a cushion material mounting structure and a cushion material capable of easily decorating the cushion material mounted on a door body and making design and safety compatible.SOLUTION: A cushion material mounting structure 10 is a structure configured on an edge portion side 3A of a door body 3 in a fitting, and a cushion material 4 mounted on the edge portion side 3A of the door body 3 has flexibility, is formed in an original flat plate shape, has at least one surface as a printed surface side 4A, is bent so as to cover the edge portion side 3A of the door body 3, and has both end portions 4142 mounted on the edge portion side 3A of the door body 3.SELECTED DRAWING: Figure 3
Owner:YKK AP INC
Anti-pinch buffer device for garage door
The utility model provides an anti-pinch buffer device for a garage door, belongs to the technical field of garage doors, and aims to solve the problem that the use effect of the garage door is affected due to the fact that the existing garage door cannot be closed due to the fact that the existing garage door is easily blocked by sundries when descending to be closed. Comprising a garage door body, a lifting door plate, an anti-pinch buffering base, a buffering driving sliding block, an opening and closing protection mechanism and an anti-pinch buffering mechanism. The two sets of lifting sliding grooves are formed in the left side and the right side of the garage door body correspondingly. The lifting door plates are slidably connected to the inner sides of the lifting sliding grooves correspondingly. The anti-pinch buffering base is fixedly connected to the front end of the lower portion of the garage door body. The buffering driving sliding block is connected to the inner side of the anti-pinch buffering base in a sliding mode. The opening and closing protection mechanism is arranged above the anti-pinch buffer base; the anti-pinch buffering mechanism is arranged on the inner side of the anti-pinch buffering base, it is avoided that sundries exist on the surface of the protective shielding plate affect falling of the lifting door plate, and stable closing of the lifting door plate is guaranteed.
Owner:GUIZHOU BLACK MAMBA INTELLIGENT EQUIPMENT ENGINEERING CO LTD
Pneumatic translation vehicle door device with buffering and anti-pinch functions
ActiveCN224256418UBuilding braking devicesPedestrian/occupant safety arrangementRatchetClassical mechanics
The utility model discloses a pneumatic translation car door device with buffering and anti-pinch functions, and particularly relates to the field of pneumatic car doors, which comprises a main body component, the main body component comprises a pneumatic door, a rubber layer is adhered to one side of the pneumatic door, a rubber hose is adhered to one side of the rubber layer, and a trigger rod is slidably connected to the inner side of the pneumatic door. A toothed bar is fixedly installed at one end of the trigger rod. According to the pneumatic door, the rubber layer and the rubber hose are arranged, when the pneumatic door is closed, if a human body is located at a door opening, the rubber layer and the rubber hose make contact with the human body firstly, so that the clamping strength is reduced, the injury risk is reduced, at the moment, the sensor sends an instruction after detection, then the ejector rod is pulled to deflect, and the pawl and the ratchet wheel are clamped; and therefore, the ratchet wheel is prevented from rotating, the circular toothed bar cannot be inserted into the rubber hose, the dual protection effect on personnel is achieved, and the safety is improved.
Owner:WENZHOU DESUN AUTO PARTS CO LTD
Finger guard for clearance covering and assembly
PendingEP4764139A1Finger guards
The invention relates to a finger protection device for gap coverage comprising a housing profile, a retaining strip profile and a cover that can be extended from the housing profile when wound up, wherein the retaining strip profile has a retaining strip profile section, wherein the retaining strip profile section is suitable and configured to receive an edge of the cover and wherein a base profile is associated with the housing profile or the retaining strip profile, which has a bearing surface for arrangement on a wing or frame.
Owner:ATHMER
Anti-pinch wooden door with safety protection function
The utility model discloses an anti-pinch wooden door with safety protection, particularly relates to the technical field of wooden doors, and comprises a ground, a wall body is fixedly connected to the upper end of the ground, a wooden door assembly is rotatably connected to the left side of the wall body, and a separation assembly is fixedly connected to the right side of the rear end of the wooden door assembly. The upper side of the front end of the wooden door assembly and the wall body are jointly and rotationally connected with a buffering assembly. According to the anti-pinch wooden door with the safety protection function, the partition assembly is arranged and can be blocked between the wall body and the door plate, the door plate is prevented from being closed, a gap is reserved between the wall body and the door plate, fingers can be effectively prevented from being pinched in a door gap when the door is closed, the risk that the fingers are pinched is reduced, and when the door is not used, the safety protection function is achieved. When the door is closed, the partition assembly can be rotated to close the door plate, normal use is not affected, independence and privacy of the indoor space are maintained, the buffer assembly is arranged, the closing speed of the door plate can be reduced in the door closing process, instant impact force is reduced, and the clamping injury risk is reduced.
Owner:CHONGQING MEIXIN MENGDI DOOR MFG CO LTD
Door structure and booth using the door structure
To provide a door structure having an opened state retaining function and a finger pinch preventing function and a booth using the door structure.SOLUTION: A door structure 110 has a door part 10, which has a door panel part 1 and a suspending side end 2 provided on a side end on a second side of the door panel part 1 and extending in a height direction V and can rotate around a rotation axis R extending in the height direction V at the suspending side end 2, and a vertical frame part 20, which is disposed at a marginal part on the second side of an opening and extends in the height direction V. The vertical frame part 20 has an inside extension part 3, which extends on a first side and is disposed on an inner space S2 side, and an outside extension part 4, which extends on the first side and is disposed on an outer space S1 side. The suspending side end 2 has a protrusion 5 extending on the second side. When the door part 10 is located at a closed position, a range 2s on the more second side and the more inner space S2 side than the rotation axis R is a circular arc shape centering the rotation axis R on a cross section perpendicular to the rotation axis R. The vertical frame part 20 has an opened state retaining part 6, which comes in contact with the protrusion 5 in an opening direction of the door part 10, when the door part 10 is located at an open position.SELECTED DRAWING: Figure 3
Owner:OKAMURA CORP
Anti-pinch heat insulation and noise reduction structure of folding door broken bridge
The utility model discloses a heat insulation and noise reduction structure of a broken bridge of an anti-pinch folding door, which comprises a door leaf composed of a first frame, a second frame and a third frame, the second frame and the third frame are respectively arranged on two sides of the first frame, one side of the door leaf faces indoors, and the other side of the door leaf faces outdoors. The second frame and the third frame are connected with the first frame through hinges. Due to the fact that the hinges are arranged in the inner cavity of the door leaf formed by combining the first frame, the second frame and the third frame, the two faces of the connecting position of the first frame, the second frame and the third frame can be blocked through the flexible pieces and the abutting parts, the heat insulation and noise reduction effects of the folding door are enhanced, and then the noise reduction effect is further enhanced. Heat insulation strips are additionally arranged in inner cavities of the faces, facing outdoors, of the first frame, the second frame and the third frame to improve the noise reduction and heat insulation effects.
Owner:FUJU NEW MATERIAL TECHNOLOGY (GUANGDONG) CO LTD
Turnover type door shield
PendingCN121539180ABuilding braking devicesWing accessoriesStructural engineeringMechanical engineering
Owner:NINGBO EUDEMON CHILD PROTECTIVE EQUIP CO
A door panel structure
The utility model discloses a door panel structure of preventing clamping hand, including door frame, the door frame inside rotationally installed has sealed door panel, sealed door panel and door frame are connected through hinge, sealed door panel inside fixedly set up has the damper board, sealed door panel both sides all are provided with the anti -clamping strip, sealed door panel rear side is provided with the anti -clamping structure, the anti -clamping structure contains the spacing disc fixed mounting on sealed door panel rear side, the spacing disc inside rotationally installed has the locating rod and locating rod one end fixedly connected with main gear, main gear outer wall is connected with the rack plate and has the rubber block fixedly set up on rack plate outside and is set up on door frame outer wall with rubber block sticking, sealed door panel both sides all are seted up with the mounting groove, two the anti -clamping strip material all adopt rubber material, and the anti -clamping strip and mounting groove size are compatible, can realize the effective anti -clamping hand after door panel and door frame close and improve door panel and door frame close sealing effect and sound insulation effect.
Owner:WUXI SONGFAN INTELLIGENT TECHNOLOGY CO LTD
Hinge-side finger protection device
Owner:ASSA ABLOY (SCHWEIZ) AG
Fireproof door with anti-pinch function
ActiveCN224120155USlow down the closing speedavoid pinchingFireproof doorsBuilding braking devicesCheck valveFire door
The utility model discloses a fireproof door with an anti-pinch function, which comprises a door frame, the front side of the door frame is hinged with a fireproof door, the front side of the door frame is provided with a first groove, the inside of the first groove is slidably connected with a damping block, the inner wall of the first groove is fixedly connected with a spring, and one end of the spring is fixedly connected with the damping block. By arranging the spring, the damping block and the push rod, when the fireproof door is closed, the damping block can be pushed by the push rod to slide in the first groove, the closing speed of the fireproof door is slowed down through the spring and the damping block, and by arranging the fixing cylinder, the one-way valve, the second connecting pipe and the check block, the check block can be driven to push the second connecting pipe to move when the fireproof door is closed. And when the air in the fixed cylinder is exhausted, the speed of pushing the second connecting pipe by the check block can be reduced, so that the fireproof door is driven to be closed slowly, and hands are prevented from being pinched by the fireproof door.
Owner:ZHEJIANG ZHONGJIAN FIRE FIGHTING TECH CO LTD
Wooden wardrobe with automatic door closing function
ActiveCN224069989Uavoid enteringWardrobesPower-operated mechanismStructural engineeringIndustrial engineering
The utility model discloses a wooden wardrobe with an automatic door closing function, which belongs to the technical field of wooden furniture and comprises a wardrobe body, a plurality of sliding rails are arranged at the top of the wardrobe body, sliding assemblies are arranged on the sliding rails in a sliding manner, limiting assemblies capable of fixing the sliding assemblies are arranged on two sides of the sliding rails of the wardrobe body, and wardrobe doors are fixedly arranged on the sliding assemblies. A homing assembly enabling the cabinet body to form a closed space is arranged between the cabinet body and the cabinet door, and a sensor for driving the homing assembly is arranged on the cabinet body. According to the wooden wardrobe with the automatic door closing function, when a user leaves the wardrobe, the wardrobe door is automatically closed through cooperation of the inductor and the returning assembly, so that a closed space is formed in the wardrobe body, and dust is effectively prevented from entering the wardrobe.
Owner:莆田市远东木业有限公司
Anti-pinch window opener
ActiveCN224338814UPower-operated mechanismFinger guardsPhysical medicine and rehabilitationWindow opening
This utility model provides an anti-pinch window opener, belonging to the field of window opener technology. Addressing the problem that over-reliance on sensors leads to delays in response when the sensors are interfered with or other objects are present, affecting window opening and closing, this utility model features an anti-pinch mechanism on one side of the window opener body and an emergency stop mechanism on the other side. The anti-pinch mechanism retracts when the window opener body is about to pinch a person, and the emergency stop mechanism stops the window opener body from pinching a person again. The anti-pinch mechanism, connecting both sides, softens under excessive pressure during retraction to prevent injury to the worker's hand. The emergency stop mechanism not only prevents injury but also stops the window from closing when squeezed, providing a secondary anti-pinch function.
Owner:MECO ELECTROMECHANICAL NANJING
Three-glass two-cavity built-in shutter
PendingCN121827671ADoor/window protective devicesPower-operated mechanismWindow shutterAcoustic insulation
The invention relates to the technical field of shutters, and provides a three-glass two-cavity built-in shutter which comprises a window frame, a shutter box and a folding and unfolding assembly, light-transmitting glass is installed in the window frame, a plurality of pieces of light-transmitting glass are arranged at intervals in the thickness direction of the window frame, and a plurality of isolation cavities are formed among the multiple pieces of light-transmitting glass; the shutter box is installed in one isolation cavity and connected with a plurality of blades located in the isolation cavity, and the folding and unfolding assembly is arranged in the shutter box and used for folding and unfolding the blades. According to the three-glass two-cavity built-in shutter, the sound insulation and dust prevention effects of the shutter can be improved.
Owner:FUJIAN GUOHUA TECH HLDG CO LTD