CN217106729U - Protecting against shock basement people's air defense door leaf fixed knot constructs - Google Patents

Protecting against shock basement people's air defense door leaf fixed knot constructs Download PDF

Info

Publication number
CN217106729U
CN217106729U CN202220431122.6U CN202220431122U CN217106729U CN 217106729 U CN217106729 U CN 217106729U CN 202220431122 U CN202220431122 U CN 202220431122U CN 217106729 U CN217106729 U CN 217106729U
Authority
CN
China
Prior art keywords
door leaf
fixedly connected
sleeve
air defense
fixed knot
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
CN202220431122.6U
Other languages
Chinese (zh)
Inventor
张际训
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.)
Qingdao Yuanda Civil Air Defense Engineering Protective Equipment Co ltd
Original Assignee
Qingdao Yuanda Civil Air Defense Engineering Protective Equipment 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 Qingdao Yuanda Civil Air Defense Engineering Protective Equipment Co ltd filed Critical Qingdao Yuanda Civil Air Defense Engineering Protective Equipment Co ltd
Priority to CN202220431122.6U priority Critical patent/CN217106729U/en
Application granted granted Critical
Publication of CN217106729U publication Critical patent/CN217106729U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

The utility model discloses a protecting against shock basement civil air defense door leaf fixed knot constructs, its technical scheme is: including door leaf and door frame, door leaf edge fixed mounting has the hinge, the door leaf passes through hinge and door frame swing joint, the fixed parcel in door leaf edge has rubber sleeve, the door leaf surface is provided with operating assembly, sealed drive assembly, spacing transmission subassembly and spacing executive component, and an protecting against shock basement civil air defense door leaf fixed knot constructs's beneficial effect is: through setting up rubber sleeve, operating means, sealed drive assembly, spacing transmission subassembly and spacing executive component, rotate first runner and can aerify the rubber sleeve inside when fixed with the door leaf, utilize expanded rubber sleeve to realize sealed, it is better to compare the sealed effect of prior art, and the inside atmospheric pressure of rubber sleeve reduces when opening the door leaf, avoids appearing door leaf outward flange negative pressure phenomenon, makes things convenient for opening of door leaf, and the practicality is stronger.

Description

Protecting against shock basement people's air defense door leaf fixed knot constructs
Technical Field
The utility model relates to a people's air defense door technical field, concretely relates to protecting against shock basement people's air defense door leaf fixed knot constructs.
Background
People's air defense is also called civil defense, and civil defense is an international common word which is used by governments to mobilize and organize the masses, and adopts the measures of preventing air attack, resisting disaster and relieving disaster to implement rescue actions and prevent and reduce the activities of disaster harm. The civil air defense door belongs to civil air defense protective equipment and has various types such as common single-leaf and double-leaf protective airtight doors, airtight doors and the like.
The prior art has the following defects: the sealing measure of the existing part of basement civil air defense door is that a rubber strip is arranged at the edge of a door leaf, but the sealing performance of the rubber strip is limited, and meanwhile, the negative pressure phenomenon is easy to occur at the edge of the door leaf, so that the door leaf is difficult to open and is not convenient enough.
Therefore, the invention is necessary to provide a door leaf fixing structure of the anti-impact basement civil air defense door.
SUMMERY OF THE UTILITY MODEL
For this, the utility model provides an impact-proof basement civil air defense door leaf fixed knot constructs, through set up inflatable rubber sleeve at the door leaf edge, close fixed the door leaf and aerify to the rubber sleeve inside to solve the sealing measure of current partial basement civil air defense door and set up the rubber strip at the door leaf edge, but rubber strip sealing performance is limited, still appear the subpressure phenomenon at the door leaf edge easily simultaneously, lead to the door leaf to be difficult to open convenient problem inadequately.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an protecting against shock basement civil air defense door leaf fixed knot constructs, includes door leaf and door frame, door leaf edge fixed mounting has the hinge, the door leaf passes through hinge and door frame swing joint, door leaf edge fixed parcel has rubber sleeve, the door leaf surface is provided with operating means, sealed drive assembly, spacing transmission assembly and spacing execution subassembly.
The operation assembly comprises a box body, the box body is fixedly connected to the surface of the door leaf, a worm is arranged inside the box body and movably connected with the inner wall of the box body through a bearing, and one end of the worm extends to the outside of the box body and is fixedly connected with a first rotating wheel.
Spacing drive assembly includes two-way screw rod, two-way screw rod both ends all run through the box and extend to the box outside, the equal fixed mounting in two-way screw rod both ends has the bearing frame, fixedly connected with worm wheel and gear on the two-way screw rod, worm wheel and gear all are located the box, worm wheel and worm meshing.
The sealing driving assembly comprises a piston sleeve, the piston sleeve is fixedly connected with the door leaf, the piston sleeve is communicated with the interior of the rubber sleeve through an air pipe, a piston is arranged in the piston sleeve, a rack is fixedly connected to one side of the piston, the rack penetrates through the box body and is in sliding connection with the inner wall of the box body, and the rack is meshed with the gear.
Preferably, the limiting execution assembly comprises a nut sleeve, the nut sleeve is in threaded connection with the bidirectional screw, transmission rods are hinged to two sides of the nut sleeve, one end, away from the nut sleeve, of each transmission rod is hinged to a limiting rod, two limiting pipes are sleeved on the limiting rods, and the two limiting pipes are fixedly connected with the surface of the door leaf.
Preferably, the inner wall of the door frame is provided with a limiting groove, and the limiting groove is matched with the limiting rod in position.
Preferably, two rubber telescopic sleeves are sleeved on the outer side of the bidirectional screw, and two ends of each rubber telescopic sleeve are fixedly connected with the bearing seat and the nut sleeve respectively.
Preferably, the edge of the door leaf part is fixedly connected with a strip-shaped plate, and the edge of the bottom of the strip-shaped plate is fixedly connected with a cleaning brush.
Preferably, the hole has been seted up to the bar shaped plate top surface, the hole top is equipped with the mounting bracket, the inboard fixedly connected with baffle of mounting bracket, the square hole has been seted up on the baffle surface, be provided with the square thread sleeve pipe in the square hole, square thread sleeve pipe bottom fixedly connected with gyro wheel, square thread sleeve pipe top is provided with adjusting part.
Preferably, the adjusting part comprises a vertical screw rod, the vertical screw rod penetrates through the mounting frame and is movably connected with the mounting frame, the bottom end of the vertical screw rod extends into the square thread sleeve and is in threaded connection with the square thread sleeve, and the top end of the vertical screw rod is fixedly connected with a second rotating wheel.
Preferably, the piston comprises a substrate and a rubber plug, and the rubber plug is fixedly connected with the substrate through a screw.
Preferably, the rack surface is fixedly provided with a strip-shaped sliding block, the inner wall of the box body is provided with a sliding groove, and the sliding groove is matched with the strip-shaped sliding block.
Preferably, the air pipe is a hose, one end of the air pipe penetrates through the door leaf and is fixedly connected with the rubber sleeve, and the other end of the air pipe is fixedly connected with the piston sleeve.
The embodiment of the utility model provides a have following advantage:
1. through set up rubber sleeve at the door leaf edge, and set up the operating means on the door leaf surface, sealed drive assembly, spacing transmission subassembly and spacing executive component, rotate first runner and can aerify the rubber sleeve inside when fixed with the door leaf, utilize expanded rubber sleeve to realize sealed, it is better to compare prior art sealed effect, the inside atmospheric pressure of rubber sleeve reduces when opening the door leaf, avoid appearing door leaf outward flange negative pressure phenomenon, make things convenient for opening of door leaf, the practicality is stronger.
2. Through set up bar shaped plate and cleaning brush bottom the door leaf, cleaning brush contacts the door frame bottom in advance before the door leaf is closed, can clean the debris and the dust on door frame surface totally, avoids the debris dust to cause rubber sleeve wearing and tearing and break, has made things convenient for the maintenance, through set up adjustable gyro wheel on the bar shaped plate, the auxiliary stay door leaf of being convenient for reduces the pressure that the hinge receives, improves the life of hinge.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of the overall structure provided by the present invention;
fig. 2 is a schematic structural view of a limiting groove provided by the present invention;
FIG. 3 is an enlarged view of the part A of FIG. 1 according to the present invention;
FIG. 4 is a cross-sectional view of the present invention providing a housing;
fig. 5 is a schematic structural diagram of a sealing driving assembly provided by the present invention;
fig. 6 is a schematic structural view of the strip-shaped plate provided by the present invention.
In the figure: 1 door leaf, 2 door frames, 3 hinges, 4 rubber sleeves, 5 boxes, 6 worms, 7 first rotating wheels, 8 two-way screw rods, 9 bearing seats, 10 worm wheels, 11 gears, 12 piston sleeves, 13 air pipes, 14 pistons, 141 substrates, 142 rubber plugs, 15 racks, 16 second rotating wheels, 17 nut sleeves, 18 transmission rods, 19 limiting rods, 20 limiting pipes, 21 limiting grooves, 22 rubber telescopic sleeves, 23 strip-shaped plates, 24 cleaning brushes, 25 mounting frames, 26 partition plates, 27 square thread sleeves, 28 rollers and 29 vertical screw rods.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings 1-6, the utility model provides a pair of protecting against shock basement civil air defense door leaf fixed knot constructs, including door leaf 1 and door frame 2, 1 marginal fixed mounting of door leaf has hinge 3, and door leaf 1 passes through hinge 3 and door frame 2 swing joint, and 1 marginal fixed parcel of door leaf has rubber sleeve 4, and 1 surface of door leaf is provided with operating element, sealed drive assembly, spacing transmission subassembly and spacing executive component.
The operating assembly comprises a box body 5, the box body 5 is fixedly connected to the surface of the door leaf 1, a worm 6 is arranged inside the box body 5, the worm 6 is movably connected with the inner wall of the box body 5 through a bearing, and one end of the worm 6 extends to the outside of the box body 5 and is fixedly connected with a first rotating wheel 7.
Spacing drive assembly includes two-way screw rod 8, be provided with two symmetric distribution's screw thread on the two-way screw rod 8 during practical application, the opposite direction of two screw threads, so that drive two nut cover 17 and remove towards opposite direction, 8 both ends of two-way screw rod all run through box 5 and extend to the box 5 outside, 8 both ends of two-way screw rod all fixed mounting have bearing frame 9, fixedly connected with worm wheel 10 and gear 11 on the two-way screw rod 8, worm wheel 10 and gear 11 all are located box 5, worm wheel 10 and worm 6 meshing.
Sealed drive assembly includes piston sleeve 12, piston sleeve 12 and door leaf 1 fixed connection, and piston sleeve 12 passes through trachea 13 and the inside intercommunication of rubber sleeve 4, and piston sleeve 12 is inside to be provided with piston 14, and 14 one side fixedly connected with racks 15 of piston, racks 15 run through box 5 and with 5 inner wall sliding connection of box, racks 15 and gear 11 meshing.
Further, the limiting execution assembly comprises a nut sleeve 17, the nut sleeve 17 is in threaded connection with the two-way screw 8, transmission rods 18 are hinged to two sides of the nut sleeve 17, one end, away from the nut sleeve 17, of each transmission rod 18 is hinged to a limiting rod 19, two limiting pipes 20 are sleeved on each limiting rod 19, the two limiting pipes 20 are fixedly connected with the surface of the door leaf 1, the number of the limiting execution assemblies is set to be two and distributed in an up-and-down symmetrical mode, when the two-way screw 8 rotates, the four limiting rods 19 can be driven to move through the movement of the two nut sleeves 17, the door leaf 1 is fixed, and impact on the door leaf 1 can be effectively resisted.
Furthermore, the inner wall of the door frame 2 is provided with a limiting groove 21, and the position of the limiting groove 21 is matched with the position of the limiting rod 19.
Furthermore, two rubber telescopic sleeves 22 are sleeved outside the bidirectional screw 8, two ends of each rubber telescopic sleeve 22 are fixedly connected with the bearing block 9 and the nut sleeve 17 respectively, threads on the bidirectional screw 8 can be effectively protected by the rubber telescopic sleeves 22, and the nut sleeve 17 is prevented from being influenced by dust.
Further, 1 edge fixedly connected with bar shaped plate 23 of door leaf, 23 bottom edge fixedly connected with cleaning brush 24 of bar shaped plate through setting up bar shaped plate 23 and cleaning brush 24, and the in-process cleaning brush 24 that closes when door leaf 1 contacts 2 interior diapalls of door frame earlier, can avoid dust or debris to cause the wearing and tearing of rubber sleeve 4 or break with the dust and the debris clearance on 2 bottom wall surfaces in the door frame.
Further, the hole has been seted up to bar 23 top surface, and the hole top is equipped with mounting bracket 25, and the inboard fixedly connected with baffle 26 of mounting bracket 25, the square hole has been seted up on baffle 26 surface, is provided with square thread sleeve 27 in the square hole, and square thread sleeve 27 bottom fixedly connected with gyro wheel 28, square thread sleeve 27 top are provided with adjusting part.
Further, the adjusting part includes perpendicular screw rod 29, it runs through mounting bracket 25 and with mounting bracket 25 swing joint to erect screw rod 29, erect screw rod 29 bottom and extend to square thread sleeve 27 inside and with square thread sleeve 27 threaded connection, erect screw rod 29 top fixedly connected with second runner 16, second runner 16 can rotate in the practical application, second runner 16 rotates and can drive perpendicular screw rod 29 and rotate, and then drive square thread sleeve 27 and gyro wheel 28 and remove downwards, gyro wheel 28 can just run through the hole and contact ground, be favorable to supporting door leaf 1 when door leaf 1 is opened, reduce the pressure that hinge 3 receives, improve hinge 3's life, and when door leaf 1 closes, reverse rotation second runner 16 in advance, can drive gyro wheel 28 and retrieve to strip shaped plate 23 top.
Further, piston 14 includes base plate 141 and rubber buffer 142, and rubber buffer 142 passes through screw and base plate 141 fixed connection, can twist the screw and demolish rubber buffer 142, is convenient for piston 14's maintenance and maintenance.
Further, 15 fixed surfaces of rack are provided with the bar slider, and 5 inner walls of box are provided with the spout, and the spout matches with the bar slider.
Further, the air pipe 13 is provided as a hose, one end of the air pipe 13 penetrates through the door leaf 1 and is fixedly connected with the rubber sleeve 4, and the other end of the air pipe 13 is fixedly connected with the piston sleeve 12.
The using process is as follows: when the utility model is used, firstly, the door leaf 1 is moved into the door frame 2 by rotating the door leaf 1, then the first rotating wheel 7 is rotated, the first rotating wheel 7 rotates to drive the worm 6 to rotate, the worm 6 can drive the two-way screw 8 to rotate by the transmission of the worm wheel 10 when rotating, the two-way screw 8 can simultaneously drive the two nut sleeves 17 to move along the two-way screw 8 when rotating, the nut sleeves 17 can drive the transmission rod 18 to move when moving, and further the limiting rod 19 is pushed to move into the limiting groove 21 on the door frame 2, thereby realizing the fixation of the door leaf 1 and effectively resisting the impact, meanwhile, the gear 11 can be driven to rotate when the two-way screw 8 rotates, the gear 11 can drive the rack 15 to move when rotating, and further the piston 14 is pushed to move, the piston 14 injects the gas in the piston sleeve 12 into the rubber sleeve 4, so that the rubber sleeve 4 expands and is tightly attached to the inner wall of the door frame 2, thereby achieving sealing;
when the door leaf 1 is opened, the first rotating wheel 7 rotates reversely, and similarly, the first rotating wheel 7 can drive the limiting rod 19 to be recovered to the outside of the limiting groove 21, meanwhile, gas in the rubber sleeve 4 is sucked into the piston sleeve 12, the internal air pressure of the rubber sleeve 4 is reduced, so that the size is reduced, and the opening of the door leaf 1 is not influenced.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims (10)

1. The utility model provides an protecting against shock basement people's air defense door leaf fixed knot constructs, includes door leaf (1) and door frame (2), its characterized in that: the edge of the door leaf (1) is fixedly provided with a hinge (3), the door leaf (1) is movably connected with a door frame (2) through the hinge (3), the edge of the door leaf (1) is fixedly wrapped with a rubber sleeve (4), and the surface of the door leaf (1) is provided with an operation assembly, a sealing driving assembly, a limiting transmission assembly and a limiting execution assembly;
the operating assembly comprises a box body (5), the box body (5) is fixedly connected to the surface of the door leaf (1), a worm (6) is arranged inside the box body (5), the worm (6) is movably connected with the inner wall of the box body (5) through a bearing, and one end of the worm (6) extends to the outside of the box body (5) and is fixedly connected with a first rotating wheel (7);
the limiting transmission assembly comprises a bidirectional screw rod (8), two ends of the bidirectional screw rod (8) penetrate through the box body (5) and extend to the outside of the box body (5), bearing seats (9) are fixedly mounted at two ends of the bidirectional screw rod (8), a worm wheel (10) and a gear (11) are fixedly connected to the bidirectional screw rod (8), the worm wheel (10) and the gear (11) are located in the box body (5), and the worm wheel (10) is meshed with the worm (6);
the sealing driving assembly comprises a piston sleeve (12), the piston sleeve (12) is fixedly connected with a door leaf (1), the piston sleeve (12) is communicated with the inside of a rubber sleeve (4) through an air pipe (13), a piston (14) is arranged inside the piston sleeve (12), a rack (15) is fixedly connected to one side of the piston (14), the rack (15) penetrates through the box body (5) and is in sliding connection with the inner wall of the box body (5), and the rack (15) is meshed with a gear (11).
2. The impact-proof basement civil air defense door leaf fixed knot of claim 1 constructs, its characterized in that: the limiting execution assembly comprises a nut sleeve (17), the nut sleeve (17) is in threaded connection with the two-way screw (8), transmission rods (18) are hinged to two sides of the nut sleeve (17), one end, far away from the nut sleeve (17), of each transmission rod (18) is hinged to a limiting rod (19), two limiting pipes (20) are sleeved on the limiting rods (19), and the two limiting pipes (20) are fixedly connected with the surface of the door leaf (1).
3. The impact-proof basement civil air defense door leaf fixed knot who prevents of claim 2 constructs, its characterized in that: the inner wall of the door frame (2) is provided with a limiting groove (21), and the limiting groove (21) is matched with the limiting rod (19) in position.
4. The impact-proof basement civil air defense door leaf fixed knot who prevents of claim 2 constructs, its characterized in that: two rubber telescopic sleeves (22) are sleeved on the outer side of the bidirectional screw rod (8), and two ends of each rubber telescopic sleeve (22) are fixedly connected with the bearing seat (9) and the nut sleeve (17) respectively.
5. The impact-proof basement civil air defense door leaf fixed knot of claim 1 constructs, its characterized in that: the edge of the door leaf (1) part is fixedly connected with a strip-shaped plate (23), and the edge of the bottom of the strip-shaped plate (23) is fixedly connected with a cleaning brush (24).
6. The impact-proof basement civil air defense door leaf fixed knot of claim 5 constructs, its characterized in that: the hole has been seted up to bar shaped plate (23) top surface, the hole top is equipped with mounting bracket (25), inboard fixedly connected with baffle (26) of mounting bracket (25), the square hole has been seted up on baffle (26) surface, be provided with square thread sleeve pipe (27) in the square hole, square thread sleeve pipe (27) bottom fixedly connected with gyro wheel (28), square thread sleeve pipe (27) top is provided with adjusting part.
7. The impact-proof basement civil air defense door leaf fixed knot of claim 6 constructs, its characterized in that: the adjusting part comprises a vertical screw rod (29), the vertical screw rod (29) penetrates through the mounting frame (25) and is movably connected with the mounting frame (25), the bottom end of the vertical screw rod (29) extends to the inside of the square thread sleeve (27) and is in threaded connection with the square thread sleeve (27), and the top end of the vertical screw rod (29) is fixedly connected with a second runner (16).
8. The impact-proof basement civil air defense door leaf fixed knot of claim 1 constructs, its characterized in that: piston (14) include base plate (141) and rubber buffer (142), rubber buffer (142) pass through screw and base plate (141) fixed connection.
9. The impact-proof basement civil air defense door leaf fixed knot of claim 1 constructs, its characterized in that: the surface of the rack (15) is fixedly provided with a strip-shaped sliding block, the inner wall of the box body (5) is provided with a sliding groove, and the sliding groove is matched with the strip-shaped sliding block.
10. The impact-proof basement civil air defense door leaf fixed knot of claim 1 constructs, its characterized in that: the air pipe (13) is a hose, one end of the air pipe (13) penetrates through the door leaf (1) and is fixedly connected with the rubber sleeve (4), and the other end of the air pipe (13) is fixedly connected with the piston sleeve (12).
CN202220431122.6U 2022-03-01 2022-03-01 Protecting against shock basement people's air defense door leaf fixed knot constructs Active CN217106729U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220431122.6U CN217106729U (en) 2022-03-01 2022-03-01 Protecting against shock basement people's air defense door leaf fixed knot constructs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220431122.6U CN217106729U (en) 2022-03-01 2022-03-01 Protecting against shock basement people's air defense door leaf fixed knot constructs

Publications (1)

Publication Number Publication Date
CN217106729U true CN217106729U (en) 2022-08-02

Family

ID=82601626

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220431122.6U Active CN217106729U (en) 2022-03-01 2022-03-01 Protecting against shock basement people's air defense door leaf fixed knot constructs

Country Status (1)

Country Link
CN (1) CN217106729U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118280033A (en) * 2024-04-12 2024-07-02 安徽祥源科技股份有限公司 Finite space management and control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118280033A (en) * 2024-04-12 2024-07-02 安徽祥源科技股份有限公司 Finite space management and control device

Similar Documents

Publication Publication Date Title
CN217106729U (en) Protecting against shock basement people's air defense door leaf fixed knot constructs
CN212985021U (en) Intelligent security people's air defense door equipment
CN203254007U (en) Cutting machine with sealing device
CN210598669U (en) Metal door and window
CN213627324U (en) Automatic door with noise reduction function
CN211500377U (en) Subway interval threshold protective sealing partition door
CN212613422U (en) Effectual electronic window of opening keeps warm
CN213115977U (en) Energy-conserving door and window subassembly structure of aluminum alloy
CN213510266U (en) Single-leaf protective airtight door
CN214062721U (en) Aluminum alloy door and window convenient to adjust
CN217602488U (en) Protective airtight door
CN217652600U (en) Fan is opened in waterproof type customization of safe edge
CN219281599U (en) Sealing type air purifying door with combined structure
CN221373395U (en) High-tightness energy-saving aluminum alloy door and window
CN221194827U (en) Wind pressure resistant sliding window
CN217205926U (en) Civil air defense door strutting arrangement
CN221032129U (en) Chain type electric window opener
CN220395535U (en) Civil air defense sealing door with buffer structure
CN216714214U (en) Composite material single-leaf protective airtight door
CN216841313U (en) Manual shielding door
CN220849384U (en) Double-rhythm opening and closing aluminum alloy door and window
CN220849497U (en) Sealing structure and aluminum alloy door and window
CN220395499U (en) Lifting window device
CN221322192U (en) Combined type civil air defense airtight door
CN221546785U (en) High-strength double-leaf protective airtight door

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant